CN103994986A - Portable type device for detecting response threshold of smoke fire detector - Google Patents
Portable type device for detecting response threshold of smoke fire detector Download PDFInfo
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- CN103994986A CN103994986A CN201410251100.1A CN201410251100A CN103994986A CN 103994986 A CN103994986 A CN 103994986A CN 201410251100 A CN201410251100 A CN 201410251100A CN 103994986 A CN103994986 A CN 103994986A
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- fire detector
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- flue gas
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Abstract
The invention relates to a portable type device for detecting the response threshold of a smoke fire detector. The device comprises a smoke box lifting jack, a smoke box assembly and a data input and output man-machine interface system, wherein the data input and output man-machine interface system is internally provided with client software which generates data information interaction with the smoke box lifting jack and the smoke box assembly in a wireless communication mode; when the smoke fire detector sends a fire alarm signal and the known obscuration coefficient of smoke gas concentration and the response threshold of the smoke fire detector are more than 0.05dBm<-1>, the smoke fire detector is judged to be ineffective. The portable type device for detecting the response threshold of the smoke fire detector is suitable for a general basic inspection unit, and can be used for detecting the response threshold of the smoke fire detector in use without disassembling the smoke fire detector, thus being capable of implementing inspection of the response threshold of the smoke fire detector in use to ensure fire safety and breaking the situation that a safety forcible inspection item can not be carried out in a public place.
Description
Technical field
The present invention relates to fire detector response lag pick-up unit, be specifically related to a kind of portable smoke fire detector response lag pick-up unit.
Background technology
Smoke detector is that the smog producing while utilizing breaking out of fire produces the principle absorbing or block and a kind of detector of making to light.In the time of breaking out of fire, smog enters the sensing chamber of detector, due to the effect of smoke particle, make the light of light-emitting component transmitting on detector produce scattering, the photo detector that this scattering is detected on device is accepted, produce photosensitive electric current, thereby realized, smoke signal is changed into electric signal, detector can be judged smoke density according to the size of electric signal and then send alerting signal.Generally, the performance parameter of smoke detector will be tested one by one and test before dispatching from the factory, the general standard fume box of being produced by NFA Quality of electronic products supervision centre punch one that adopts of checkout equipment.But being arranged on that smoke detector in buildings uses after a period of time may misalignment, need regularly to detect, and current standard fume box is only applicable to the verification before smoke detector installation, cannot carry out Site Detection (i.e. online detection) to the smoke detector in using.Conventional method is to utilize standard fume box to detect by taking fire department after the smoke detector dismounting in using again, and such detection method is because be not online detection, so can not accurately calibrate smoke detector, often occur that the smoke detector after dismounting is up to the standards, but malfunctioning phenomenon still in using after installing again.On the other hand, standard fume box volume structure is huge, and operating process complexity is loaded down with trivial details, and testing cost is very high, and verification unit of general basic unit is difficult to carry out this work.
Summary of the invention
For the above-mentioned defect of prior art, for solving problems of the prior art, the invention provides a kind of smoke fire detector response lag pick-up unit.This device volume is little, lightweight, easy to carry, and the smoke fire detector that can align in use detects online.
A kind of smoke fire detector response lag pick-up unit comprises smoke box lifting jack and smoke box assembly, and described smoke box lifting jack is positioned at the bottom of described smoke box assembly, comprises lifting frame, push rod, and along with the elongating or shortening of push rod, lifting frame will rise or decline; Wherein said push rod is preferably electric pushrod;
Described smoke box assembly quality is no more than 10kg, volume is no more than 50cm × 50cm × 50cm, comprise standard smoke generator, temperature control standard flue gas supply unit, detect smoke box unit and flue gas online and purge four of unit functional unit, wherein, described standard smoke generator can balancedly produce the amount of being fuming, the particle diameter of the smoke particle in flue gas is distributed in 0.5um～1.0um, forms standard flue gas; Described constant temperature standard flue gas supply unit is for processing described flue gas or being transported in described online detection smoke box by setting heating rate by design temperature constant temperature; Described online detection smoke box unit for sending into the flue gas of demarcation that goes out after testing obscuration coefficient value in smoke fire detector, receive smoke fire detector sound and light alarm signal, analyze and assign test result for testing staff, in the time that described smoke fire detector sends fire alarm signal, the known obscuration coefficient value of flue gas concentration and the response lag of described smoke fire detector are greater than 0.05dBm
-1time, judge that described smoke fire detector lost efficacy; Described flue gas purges unit for replacing the residual flue gas of a testing process, for next testing process is prepared; Opening is arranged at the top of described smoke box assembly, and the size of described opening is the accommodating smoke detector of energy just; The top of described smoke box assembly preferably arranges O-ring seal, and its effect is to make smoke-box airtight, prevents that in testing process, flue gas leaks from smoke box assembly top.
Preferably, described online detection smoke box unit comprises pickup video camera, air velocity transducer, temperature sensor, 850nm photometer measurement probe; Described pickup video camera, air velocity transducer and temperature sensor are used for respectively detecting sound and light signal, wind velocity signal and the temperature signal in smoke-box; Described 850nm photometer measurement probe is for surveying the flue gas concentration in smoke-box.
Preferably, described smoke fire detector response lag pick-up unit comprises data input and output human-computer interface system, mutual to be used for described smoke box lifting jack and described smoke box assembly generation data message, can control described smoke box lifting jack and described smoke box assembly by described human-computer interface system; Described data input and output human-computer interface system is built-in with client software; Described client software can show and store the data such as the phonotape and videotape, temperature, wind speed, obscuration coefficient of smoke-box in smoke box assembly; Described client software also includes smoke box lifting jack control window, opens after client operation form, pins lifting jack and rises or decline knob, can control push rod and elongate or shorten, and lifting frame will rise or decline thereupon; Data message between described client software and smoke box assembly and smoke box lifting jack is to be undertaken by the mode of radio communication alternately, and wherein, described radio communication is preferably one or more in purple honeybee, WIFI, bluetooth, RF; Described data input and output human-computer interface system is preferably the upper computer software and the database that are contained on the mobile device such as mobile phone or notebook computer.
In portable smoke fire detector response lag pick-up unit of the present invention, in described online detection smoke box, described smoke fire detector air-flow is around 0.2 ± 0.04m/s, and gas flow temperature should be 23 ± 5 DEG C, and the cigarette speed that rises that is transported to described online detection smoke box is 0.015dBm
-1min
-1≤ Δ m/ Δ t≤0.1dBm
-1min
-1.
In portable smoke fire detector response lag pick-up unit of the present invention, the particle diameter of the smoke particle in flue gas is distributed in 0.5um～1.0um.
In portable smoke fire detector response lag pick-up unit of the present invention, optical measurement length is 0.114m (standard-required is not more than 1.1m), the light that its scattering angle that can not receive the smoke particle scattering of supplied flue gases is greater than 3 °.Light beam wavelength is in the scope of 800nm～950nm, and its Effective Radiated Power should be greater than 50%, and in the scope of wavelength lower than 800nm, its Effective Radiated Power should be less than 10%, and wavelength is higher than within the scope of 1050nm, and its Effective Radiated Power also should be less than 10%.
Portable smoke fire detector response lag pick-up unit of the present invention detects error: the smoke density between 0～2dB/m, measuring error should not be greater than (m × 5%+0.02) dB/m.Before each measurement, the reading of surveying instrument must be compared with the reading (zero point) in pure air, and measured deviation should not be greater than 0.02dB/m.
Implement portable smoke fire detector response lag pick-up unit of the present invention, there is following beneficial effect: the smoke fire detector in using without handling, can carry out using verification response lag to this smoke fire detector, the problem that has solved verification in the use of response lag, is conducive to ensure security against fire; In addition, this pick-up unit is lightweight, and volume is little, easy to carry, and can manipulate by client software, and testing process easily and fast.
Brief description of the drawings
The portable smoke fire detector response lag of Fig. 1 structure of the detecting device figure;
Fig. 2 smoke box assembly structure schematic diagram;
The main pseudosection of Fig. 2 A smoke box assembly;
The left pseudosection of Fig. 2 B smoke box assembly;
Fig. 2 C smoke box assembly top plan view;
Fig. 3 combustion tube sectional view.
Figure number detail list:
1. long leg;
2. mainboard drive plate connection;
3. short supporting leg;
4. supply socket;
5. Switching Power Supply;
6. control cables aviation socket;
7. drive plate is to aviation socket cable;
8. hand-held touch control screen;
9. switch board;
10. mainboard;
11. drive plates;
12. lifting frame assemblies;
13. control cables;
14. electric linear push rods;
15. smoke box assemblies;
16.20 type aviation plug;
17. lifting arm coupling bolts;
18. smoke box seats;
19. combustion tube cables;
20. combustion tubes;
21. blower fan assemblies;
22. cylinder bases of being fuming;
23. air inlet temperature sensors;
24. heat exchange posts;
25. thermoelectric cooling modules;
26.CPU radiator fan;
27. Cross Recess Head Screws-H type M3 × 8;
28. air inlet temperature sensor data lines;
29. acoustic pickups and camera data line;
30. pickup video cameras;
31.TEC1-12720 thermoelectric cooling module service cable;
32.775 serial CPU radiator fan service cable;
33. fan house return air inlet temperature sensor data line;
34. fan house return air inlet temperature sensor;
35. fan houses;
36. pickup camera heat-insulating packing ring;
37. survey smoke-box air velocity transducer data line;
38. survey smoke-box return air inlet temperature sensor data line;
39. survey smoke-box air velocity transducer;
40. survey smoke-box return air inlet temperature sensor;
41. survey smoke-box;
42. thermofins;
43. survey smoke-box return air uniform device;
44. survey smoke-box O-ring seal flange hinge bolt;
45. survey smoke-box O-ring seal flange hinge axis;
46. survey smoke-box O-ring seal;
47. smoke box top dead centre limit sensors;
48. smoke box top dead centre limit sensors data line;
49. pickup video camera dust cover;
50.850nm photometer measurement probe assembly emitting head;
51. survey smoke-box O-ring seal flange;
52. survey smoke-box O-ring seal flange snap close bolt;
53. survey smoke-box air intake uniform device;
54.850nm photometer measurement probe transmitting terminal cable;
55. survey smoke-box intake air temperature sensor;
56. survey smoke-box intake air temperature sensor data cable;
57. survey smoke-box temperature sensor;
58. survey smoke-box temperature sensor data line;
59. electric air volume adjusting valve cables;
60. electric air volume adjusting valve assemblies;
61. fan house air outlet temperature sensor;
62. fan house air outlet temperature sensor data line;
63. Cross Recess Head Screws-H type M4 × 12;
64. smoke-box drive plates;
65. smoke-box drive plate control line;
66. smoke-box drive plate power lead;
67. smoke-box drive plate power supply;
68. fan power lines;
69. smoke-box drive plate Power supply line;
70.850nm photometer measurement probe dust cover;
71. Cross Recess Head Screws-H type M3 × 20;
72.850nm photometer measurement probe receiving end cable;
73.850nm photometer measurement probe receiving end assembly;
74.850nm photometer measurement probe dust cover sealing gasket;
75. heating wire extension lines;
76. heating wire extension line terminal;
77. porcelain insulators;
78. covers of being fuming;
The cylinder base hook hole 79. be fuming;
80. positive electrodes;
81. heating wire;
The 82. standard columns of smoke;
83. the column of smoke protects air duct;
84. ground connection negative electrodes.
Specific embodiment
Now the present invention is described in detail with reference to the accompanying drawings, in the following description, for complete understanding of the present invention is provided, set forth multiple concrete details.But, to those skilled in the art, can implement the present invention in the case of not having some or all in these details.In addition, for fear of unnecessarily obscuring the present invention, known treatment step and/or structure are not elaborated.
Fig. 1 is portable smoke fire detector response lag structure of the detecting device figure.Bottom at this device is provided with support, and long leg 1 is installed on the right of support, and short supporting leg 3 is installed on the left side, and support is in order to support and control cabinet 9, lifting frame assembly 12 and smoke box assembly 15.In switch board 9, be provided with mainboard 10, drive plate 11, hand-held touch control screen 8.Preferably, described smoke fire detector response lag pick-up unit comprises data input and output human-computer interface system, mutual to be used for described smoke box lifting jack and described smoke box assembly generation data message, can control described smoke box lifting jack and described smoke box assembly by described human-computer interface system; Described data input and output human-computer interface system is built-in with client software; Described client software can show and store the data such as the phonotape and videotape, temperature, wind speed, obscuration coefficient of smoke-box in smoke box assembly; Described client software also includes smoke box lifting jack control window, opens after client operation form, pins lifting jack and rises or decline knob, can control push rod and elongate or shorten, and lifting frame will rise or decline thereupon; Data message between described client software and smoke box assembly and smoke box lifting jack is to be undertaken by the mode of radio communication alternately, and wherein, described radio communication is preferably one or more in purple honeybee, WIFI, bluetooth, RF; Described data input and output human-computer interface system is preferably the upper computer software and the database that are contained on the mobile device such as mobile phone or notebook computer.Wherein mainboard 10, drive plate 11 connect by mainboard drive plate connection 2, and drive plate 11 first ports are connected to 4, the second ports of supply socket of being controlled by Switching Power Supply 5 and are connected to aviation socket 6 for cable by drive plate to aviation socket cable 7.Control cables is arranged on supply socket 4 upper ends with aviation socket 6, also connects the control cables 13 being communicated with smoke box assembly 15 at this control cables with aviation socket 6 simultaneously.Wherein lifting frame assembly 12 tops are provided with electric linear push rod 14, in order to regulate the height of lifting frame.
Smoke box assembly quality is about 10kg, and volume is about 50cm × 50cm × 50cm, flue gas in smoke box assembly occur to demarcate detection system by standard smoke generator, temperature control standard flue gas supply unit, detect smoke box unit and flue gas online and purge unit and form.Its Plays smoke generator can balancedly produce the amount of being fuming, and formation code specifies to rise the standard flue gas of cigarette speed, and the cigarette speed that rises that is transported to online detection smoke box is 0.015dBm
-1min
-1≤ Δ m/ Δ t≤dBm
-1min
-1the particle diameter of the smoke particle in flue gas should be distributed between 0.5um～1.0um, once add and be fuming more than ball energy steady operation 15min, this flue gas should have repeatability and stability at aspects such as particle diameter distribution, particle size, size composition, optical characteristics, and can within the scope of figure solid line G.3, carry out the stable of warranty test cigarette by monitoring that obscuration coefficient value m and the ratio of detection time meet in GB4715-2005 " spot-type smoke detector ", the maximal value of its obscuration coefficient value is 2dBm
-1; Constant temperature standard flue gas supply unit is for processing described flue gas or being transported in described online detection smoke box by setting heating rate by design temperature constant temperature, in online detection smoke box, smoke fire detector air-flow is around 0.2 ± 0.04m/s, and gas flow temperature should be 23 ± 5 DEG C; The online smoke box unit that detects is used in the smoke fire detector of use loads its casing, in smoke fire detector, send into the flue gas of demarcation that goes out after testing obscuration coefficient value by detecting code requirement, receive smoke fire detector sound and light alarm signal, and data are sent to hand-held touch control screen, analyze and assign test result for testing staff, in the time that described smoke fire detector sends fire alarm signal, the known obscuration coefficient value of flue gas concentration and the response lag of described smoke fire detector are greater than 0.05dBm
-1time, judge that described smoke fire detector lost efficacy; Flue gas purges unit for replacing the residual flue gas of a testing process, for next testing process is prepared.
The portable smoke fire detector response lag of the present invention pick-up unit, comprises the following steps:
1) first open client operation form;
2) proofread instrument readings (zero point) before working first, the reading of surveying instrument is compared with the reading (zero point) in pure air, measured deviation should not be greater than 0.02dB/m;
3) smoke fire detector is packed into instrument and detects station, manually click lifting jack elevating control window, pin lifting jack and rise or decline knob, observe display video, by instrument with examined smoke fire detector contraposition;
4) manually click and send after power-on command, host work program starts.
Host computer system of the present invention, comprises the following steps:
1) opening infrared emission tube DC1.5V supplying DC solid-state relay powers to infrared emission tube; Pickup video camera, temperature, air velocity transducer, photoelectric cell obscuration coefficient voltage signal are carried and are started working.
2) open AC220V blower fan supply and AC solid-state relay, rotation speed of fan is adjusted to 90% dutycycle work, and by the data judging of in real time passback of air velocity transducer and regulate motor D C24V supplying DC reversing switch to switch to acceleration or deceleration state wind speed, opening wind speed regulates motor D C24V supplying DC solid-state relay to regulate motor power supply to wind speed, till to air velocity transducer, the data of passback reach wind speed setting value in real time, closing wind speed regulates motor D C24V supplying DC solid-state relay to regulate motor to stop power supply to wind speed, and wind speed control is gone to controlled wind speed adjusting motor D C24V supplying DC solid-state relay dutycycle, adjust wind speed by setting value monitoring in real time.
3) press the work of design temperature control semiconductor chilling plate, the temperature data of first beaming back by detection zone temperature sensor is determined semiconductor chilling plate duty for refrigeration or is heated state, i.e. instruction semiconductor chilling plate supplying DC reversing switch work; The temperature data of beaming back by the adjacent temperature sensor of mensuration semiconductor chilling plate is again determined semiconductor chilling plate work dutycycle, control respectively the semiconductor chilling plate supplying DC solid-state relay operation range time separately by the temperature signal of real-time feedback, ensure that each region is within the scope of the working temperature of setting and temperature rate; Then the temperature data of beaming back by fan air inlet and the arbitrary temperature sensor of detection zone temperature sensor is determined the dutycycle that semiconductor chilling plate is worked separately, to ensure that detection zone temperature is in setting working range.Preferentially, semiconductor chilling plate has 4, also can increase piece number to ensure the equilibrium of temperature.
4) in the time that detection zone wind speed, temperature reach setting value requirement, opening igniting DC24V supplying DC solid-state relay is fuming to the post heating and gasifying of being fuming, close igniting DC24V supplying DC solid-state relay when being subject to inspection equipment to send sound and light alarm signal, the post of being fuming stops gasification and is fuming.
5) record pickup video camera and receive the whole synchrodatas while being examined the sound and light alarm signal that smoke fire detector sends for the first time, comprise time, detection zone temperature, wind speed, flue gas obscuration coefficient and be subject to inspection equipment to send sound and light alarm video storage to being examined in facility information storehouse accordingly.In the time that smoke fire detector sends fire alarm signal, the known obscuration coefficient value of flue gas concentration and the response lag of smoke fire detector are greater than 0.05dBm
-1time, judge that smoke fire detector lost efficacy.
6) lifting jack declines automatically, open displacement valve, blower fan inhale fresh air is also examined equipment installing port and is blown out the flue gas through continuous dilution from detection zone, until close displacement valve while being subject to inspection equipment to stop sending sound and light alarm, lifting jack automatic-ascending 50mm resets, and enters testing process for the second time.Preferably, lifting jack down position is 50mm.
7) repeat the 4th) to 6) step, record second and the whole synchrodatas while being subject to for the third time sound and light alarm signal that inspection equipment sends, comprise time, detection zone temperature, wind speed, flue gas obscuration coefficient and be subject to inspection equipment to send sound and light alarm video storage and extremely examined in facility information storehouse accordingly.
8) manually click lifting jack elevating control window, pin lifting jack decline knob, by instrument with examined device separates and dropped to instrument safety moving height, start next and examined equipment Inspection or shutdown.
The portable smoke fire detector response lag of the present invention pick-up unit also comprises directional error is detected: the smoke density between 0～2dB/m, measuring error should not be greater than (m × 5%+0.02) dB/m.Before each measurement, the reading of surveying instrument must be compared with the reading (zero point) in pure air, and measured deviation should not be greater than 0.02dB/m.
Smoke box lifting jack is by lifting frame assembly 12, electric linear push rod 14, smoke box top dead center position sensor 47 and composition of the control system.Open after client operation form, pin lifting jack and rise or decline knob, electric linear push rod elongates or shortens, and lifting frame will rise or decline, in the time of instrument top dead center position sensor input top dead center position signal, control system lock rising knob, make lifting frame can not continue to rise.
Fig. 2 is smoke box assembly structure schematic diagram, and Fig. 2 A is the main pseudosection of smoke box assembly, and Fig. 2 B is the left pseudosection of smoke box assembly, and Fig. 2 C is smoke box assembly top plan view.There is to demarcate detection system and be arranged in smoke box assembly in flue gas, with reference to figure 2A, smoke box assembly 15 is by blower fan assembly 21, the cylinder base 22 of being fuming, air inlet temperature sensor 23, heat exchange posts 24, thermoelectric cooling module 25, radiator fan 26, pickup video camera 30, fan house return air inlet temperature sensor 34, fan house 35, survey smoke-box air velocity transducer 39, survey smoke-box return air inlet temperature sensor 40, survey smoke-box 41, thermofin 42, survey smoke-box return air uniform device 43, survey smoke-box O-ring seal 46, smoke box top dead centre limit sensors 47, 850nm photometer measurement probe assembly emitting head 50, survey smoke-box air intake uniform device 53, survey smoke-box intake air temperature sensor 55, survey smoke-box temperature sensor 57, electric air volume adjusting valve assembly 60, fan house air outlet temperature sensor 61, smoke-box drive plate 64, 850nm photometer measurement probe receiving end assembly 73 forms.Wherein, be arranged on the fixing excessive heightening rod 14 of lifting arm coupling bolt 17 of smoke box assembly 15 bottoms, aviation plug 16 with control cables 13 to being communicated with.
Wherein survey smoke-box 41 and be arranged on top, fan house 35 is arranged on middle part, and smoke box seat 18 is arranged on bottom, and three connects into an entirety and forms smoke box assembly 15 cabinets, and remaining part is installed in to be surveyed in smoke-box 41, fan house 35, smoke box seat 18 corresponding function districts.
These parts composition standard smoke generators, temperature control standard flue gas supply unit, detect smoke box unit and flue gas online and purge four of unit functional unit.Wherein, described standard smoke generator can balancedly produce the amount of being fuming, and the particle diameter of the smoke particle in flue gas is distributed in 0.5um～1.0um, and formation code specifies to rise the standard flue gas of cigarette speed; Described constant temperature standard flue gas supply unit is for processing described flue gas or being transported in described online detection smoke box by setting heating rate by design temperature constant temperature; Described online detection smoke box unit is used in the smoke fire detector of use loads its casing, in smoke fire detector, send into the flue gas of demarcation that goes out after testing obscuration coefficient value by detecting code requirement, receive smoke fire detector sound and light alarm signal, and data are sent to hand-held touch control screen, analyze and assign test result for testing staff, in the time that described smoke fire detector sends fire alarm signal, the known obscuration coefficient value of flue gas concentration and the response lag of described smoke fire detector are greater than 0.05dBm
-1time, judge that described smoke fire detector lost efficacy; Described flue gas purges unit for replacing the residual flue gas of a testing process, for next testing process is prepared.
With reference to figure 2A and Fig. 3, standard smoke generator is made up of combustion tube 20 and the cylinder base 22 of being fuming, be arranged on fan house 35 bottom return air area edges, wherein combustion tube 20 by heating wire extension line terminal 76, porcelain insulator 77, the cover 78 of being fuming, the cylinder base hook hole 79 of being fuming, positive electrode 80, heating wire 81, the standard column of smoke 82, the column of smoke protect air duct 83, ground connection negative electrode 84 forms.In the time that smoke-box drive plate 64 is powered to heating wire extension line terminal 76 by mainboard 10 instructions, heating wire 81 is heated to form 400 DEG C～600 DEG C glowers, the standard column of smoke 82 gasifies and is fuming on this glower, when mainboard 10 instructions are during to 76 power-off of heating wire extension line terminal, heating wire 81 temperature drop to rapidly below 400 DEG C, and the standard column of smoke 82 stops gasification and is fuming.Wherein, the outer cover of the standard column of smoke 82 has the column of smoke to protect air duct 83, and heating wire 81 one end of 82 in the standard column of smoke are connected to positive electrode 80, and one end is connected to ground connection negative electrode 84; Heating wire extension line 75 is connected to heating wire extension line terminal 76, is provided with porcelain insulator 77 in the upper end of heating wire extension line terminal 76.In more detail, be provided be fuming cover 78 and the cylinder base hook hole 79 of being fuming in combustion tube 20 left sides.Be connected with combustion tube cable 19 at combustion tube 20, be arranged on smoke box seat 18.
With reference to figure 2 and Fig. 2 A, temperature control standard flue gas supply unit is by being arranged on the blower fan assembly 21 of surveying in the inner chamber air channel that smoke-box 41 and fan house 35 form, the cylinder base 22 of being fuming, air inlet temperature sensor 23, heat exchange posts 24, thermoelectric cooling module 25, radiator fan 26, fan house return air inlet temperature sensor 34, fan house 35, survey smoke-box air velocity transducer 39, survey smoke-box return air inlet temperature sensor 40, survey smoke-box 41, thermofin 42, survey smoke-box return air uniform device 43, survey smoke-box O-ring seal 46, survey smoke-box air intake uniform device 53, survey smoke-box intake air temperature sensor 55, survey smoke-box temperature sensor 57, electric air volume adjusting valve assembly 60, fan house air outlet temperature sensor 61, examined smoke fire detector and be arranged on the composition of the control system in smoke box seat 18, wherein, surveying smoke-box O-ring seal 46 chooses by examined smoke fire detector external diameter specification, in case leak-stopping cigarette.When work, blower fan assembly 21 starts air-supply, in the time that smoke-box drive plate 64 starts constant temperature or heating and cooling by mainboard instruction, fan house return air inlet temperature sensor 34, survey smoke-box intake air temperature sensor 55, its adjacent thermoelectric cooling module 25 output temperatures are fed back to mainboard 10 by fan house air outlet temperature sensor 61, mainboard 10 instruction smoke-box drive plates 64 are controlled thermoelectric cooling module 25 non-overloading work, air inlet temperature sensor 23, the temperature data that survey smoke-box temperature sensor 57 detects feeds back to mainboard 10 as design temperature, mainboard 10 instruction smoke-box drive plates 64 are controlled thermoelectric cooling module 25 and are heated or freeze, be operated in design temperature until reach and maintain instrument.Survey smoke-box air velocity transducer 39 air speed data is fed back to mainboard 10, mainboard 10 instruction electric air volume adjusting valve assemblies 60 regulate surveys the interior flue gas flow rate of smoke-box 41, be operated in setting flow velocity until reach and maintain the interior flue gas flow rate of survey smoke-box 41, wherein survey smoke-box return air uniform device 43, survey smoke-box air intake uniform device 53 for surveying the homogeneity device of smoke-box 41 interior flue gas flow rates, guarantee to survey smoke-box 41 cloth wind consistent, flue gas obscuration coefficient value is in the deviation range allowing.
In the present invention, be provided with in blower fan assembly 21 left sides the cylinder base 22 of being fuming, preferentially, directly over the blower fan assembly 21 being connected with fan power line 68, be provided with air inlet temperature sensor 23, above the cylinder base 22 of being fuming, be provided with heat exchange posts 24; Be provided with successively thermoelectric cooling module 25, radiator fan 26 in the left side of heat exchange posts 24, wherein, thermoelectric cooling module 25 can be connected to thermoelectric cooling module service cable 31, and radiator fan 26 can be connected to radiator fan service cable 32.In more detail, air inlet temperature sensor 23 is connected to air inlet temperature sensor data line 28, both sides are provided with Cross Recess Head Screw-H type 27, top is provided with the pickup video camera 30 being connected with camera data line 29 with acoustic pickup, is provided with pickup camera heat-insulating packing ring 36 on pickup video camera 30.Preferentially, in fan house 35, a side is provided with the fan house return air inlet temperature sensor 34 being connected with fan house return air inlet temperature sensor data line 33; Opposite side is provided with the fan house air outlet temperature sensor 61 of connecting fan chamber air outlet temperature sensor data line 62.
Preferentially, be provided with thermofin 42 surveying smoke-box 41 outsides, two ends be respectively equipped with and survey survey smoke-box return air inlet temperature sensor 40 that smoke-box return air inlet temperature sensor data line 38 is connected and with the survey smoke-box intake air temperature sensor 55 of surveying smoke-box intake air temperature sensor data cable 56 and being connected; Be provided with test cigarette return air cigarette uniform device 43 in survey smoke-box 41 inside left, right side is provided with surveys smoke-box air intake uniform device 53.Preferentially, be respectively equipped with the fan house return air inlet temperature sensor 34 being connected with fan house return air inlet temperature sensor data line 33 and the fan house air outlet temperature sensor 61 being connected with fan house air outlet temperature sensor data line 62 at fan house 35 two ends.Be provided with multiple smoke box top dead centre limit sensors 47 that are connected with smoke box top dead centre limit sensors data line 48 in the upper end of surveying smoke-box 41, be provided with and survey smoke-box O-ring seal 46, be provided with and survey smoke-box O-ring seal 46 on the top of surveying smoke-box 41, be provided with and survey smoke-box O-ring seal flange hinge axis 45 and survey smoke-box O-ring seal flange hinge bolt 44 at survey smoke-box O-ring seal 46 left ends, right-hand member is provided with to be surveyed smoke-box O-ring seal flange 51 and surveys smoke-box O-ring seal flange snap close bolt.Electric air volume adjusting valve assembly 60 connects electric air volume adjusting valve cable 59, and Cross Recess Head Screw-H type M4 × 12 are housed below electric air volume adjusting valve assembly 60.On survey smoke-box 41 right sides, smoke-box drive plate 64 is housed, smoke-box drive plate Power supply line 69 is connected to smoke-box drive plate power supply 67, is then connected to smoke-box drive plate 64 by smoke-box drive plate power lead 66, and smoke-box drive plate control line 65 picks out from smoke-box drive plate 64.With reference to figure 2A, 2B, 2C, detect online smoke box unit by being arranged on pickup video camera 30, survey smoke-box air velocity transducer 39,850nm photometer measurement probe assembly emitting head 50, survey smoke-box temperature sensor 57, the 850nm photometer measurement probe receiving end assembly 73 of surveying on smoke-box 41 and being arranged on the composition of the control system in smoke box seat 18.In the time that pickup video camera 30 detects the sound and light alarm signal that smoke fire detector sends, send data to mainboard 10, mainboard 10 locks the response that synchronous period flue gas data that 850nm photometer measurement probe receiving end assembly 73 detects are this smoke fire detector simultaneously, and storage data also judge that it is whether in threshold value.Preferentially, in survey smoke-box 41, be provided with and be connected with the survey smoke-box air velocity transducer 39 of surveying smoke-box air velocity transducer data line 37, the 850nm photometer measurement probe assembly emitting head 50 being connected with 850nm photometer measurement probe transmitting terminal cable 54, and the survey smoke-box temperature sensor 57 being connected with survey smoke-box temperature sensor data line 58, wherein, outside at 850nm photometer measurement probe assembly emitting head 50 is provided with 850nm photometer measurement probe dust cover 70, and 850nm photometer measurement probe dust cover 70 tops are provided with Cross Recess Head Screw 71; Be provided with 850nm photometer measurement probe receiving end assembly 73 at the front end of surveying smoke-box 41,850nm photometer measurement probe receiving end assembly 73 is connected with 850nm photometer measurement probe receiving end cable 72, is provided with 850nm photometer measurement probe dust cover sealing gasket 74 on 850nm photometer measurement probe receiving end assembly 73.
Flue gas purge unit by being arranged on control system in smoke box seat 18, be arranged on and on fan house 35 suction sides, input the displacement valve of fresh air, form by surveying the exhaust gases passes that smoke-box 41 and fan house 35 inner chambers form, wherein exhaust gases passes by the blower fan assembly 21 in the smoke box assembly 15 interior air channels that form, the cylinder base 22 of being fuming, survey smoke-box 41, survey smoke-box return air uniform device 43, survey smoke-box O-ring seal 46, survey smoke-box air intake uniform device 53, electric air volume adjusting valve assembly 60, examined smoke fire detector and form.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a smoke fire detector response lag pick-up unit, comprise smoke box lifting jack, smoke box assembly and data input and output human-computer interface system, it is characterized in that, described smoke box lifting jack is positioned at the bottom of described smoke box assembly, comprise lifting frame, push rod, and along with elongating or shortening of push rod, lifting frame will rise or decline; In described smoke box assembly, include standard smoke generator, temperature control standard flue gas supply unit, detect smoke box unit and flue gas online and purge four of unit functional unit; The top of described smoke box assembly is provided with opening and O-ring seal, and the size of described opening is the accommodating smoke detector of energy just; Described data input and output human-computer interface system is built-in with client software, and described client software is mutual with the mode of radio communication and smoke box lifting jack, smoke box assembly generation data message.
2. a kind of smoke fire detector response lag pick-up unit as claimed in claim 1, wherein, described data input and output human-computer interface system is upper computer software and the database being contained on the mobile device such as mobile phone or notebook computer.
3. a kind of smoke fire detector response lag pick-up unit as claimed in claim 1, wherein, described radio communication is one or more in purple honeybee, WIFI, bluetooth, RF.
4. a kind of smoke fire detector response lag pick-up unit as described in claim 1 or 2 or 3, wherein, described client software can show and store the data such as the phonotape and videotape, temperature, wind speed, obscuration coefficient of smoke-box in smoke box assembly; Described client software also includes smoke box lifting jack control window, opens after client operation form, pins lifting jack and rises or decline knob, can control push rod and elongate or shorten, and lifting frame will rise or decline thereupon.
5. a kind of smoke fire detector response lag pick-up unit as described in claim 1 or 2 or 3, wherein, described smoke box assembly quality is no more than 10kg, and volume is no more than 50cm × 50cm × 50cm.
6. a kind of smoke fire detector response lag pick-up unit as described in claim 1 or 2 or 3, wherein, described constant temperature standard flue gas supply unit is for processing described flue gas or being transported in described online detection smoke box by setting heating rate by design temperature constant temperature.
7. a kind of smoke fire detector response lag pick-up unit as described in claim 1 or 2 or 3, wherein, described online detection smoke box unit for sending into the flue gas of demarcation that goes out after testing obscuration coefficient value in smoke fire detector, receive smoke fire detector sound and light alarm signal, analyze and assign test result for testing staff, when the known obscuration coefficient value of flue gas concentration and the response lag of described smoke fire detector are greater than 0.05dBm-1 in the time that described smoke fire detector sends fire alarm signal, judge that described smoke fire detector lost efficacy.
8. a kind of smoke fire detector response lag pick-up unit as described in claim 1 or 2 or 3, wherein, described flue gas purges unit for replacing the residual flue gas of a testing process, for next testing process is prepared.
9. a kind of smoke fire detector response lag pick-up unit as described in claim 1 or 2 or 3, wherein, described online detection smoke box unit comprises pickup video camera, air velocity transducer, temperature sensor, 850nm photometer measurement probe; Described pickup video camera, air velocity transducer and temperature sensor are used for respectively detecting sound and light signal, wind velocity signal and the temperature signal in smoke-box; Described 850nm photometer measurement probe is for surveying the flue gas concentration in smoke-box.
10. a kind of smoke fire detector response lag pick-up unit as described in claim 1 or 2 or 3, wherein, described smoke fire detector air-flow is around 0.2 ± 0.04m/s, and gas flow temperature should be 23 ± 5 DEG C, and the cigarette speed that rises that is transported to described online detection smoke box is 0.015dBm
-1min
-1≤ Δ m/ Δ t≤0.1dBm
-1min
-1.
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| CN201410251098.8A Active CN104014099B (en) | 2014-01-17 | 2014-06-06 | A kind of smoke fire detector response lag on-line measuring device |
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| CN105136978A (en) * | 2015-07-14 | 2015-12-09 | 营口天成消防设备有限公司 | Calibration smoke box |
| CN110751817A (en) * | 2019-10-23 | 2020-02-04 | 应急管理部沈阳消防研究所 | Device and method for testing response performance of fire detector in low-temperature environment |
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| CN103994986B (en) * | 2014-01-17 | 2017-01-18 | 徐继承 | Portable type device for detecting response threshold of smoke fire detector |
| CN110243739B (en) * | 2019-06-21 | 2020-01-17 | 广东荣业消防工程有限公司 | Portable fire scene environment detection device |
| CN110780043B (en) * | 2019-11-21 | 2022-01-04 | 深圳市泛海三江电子股份有限公司 | Method for obtaining high-precision detector orientation test result |
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Also Published As
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|---|---|
| CN104014099A (en) | 2014-09-03 |
| CN103994986B (en) | 2017-01-18 |
| CN104014099B (en) | 2018-03-02 |
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