CN100406857C - Automatic metering device for oil, water and gas three-phase flow - Google Patents
Automatic metering device for oil, water and gas three-phase flow Download PDFInfo
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- CN100406857C CN100406857C CN2006101050041A CN200610105004A CN100406857C CN 100406857 C CN100406857 C CN 100406857C CN 2006101050041 A CN2006101050041 A CN 2006101050041A CN 200610105004 A CN200610105004 A CN 200610105004A CN 100406857 C CN100406857 C CN 100406857C
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Abstract
The related flux gauging device for oil-water-gas three phase flow comprises: divided by the flange and pipeline, a separation tank with top connected with a gas-liquid inlet pipe and both top and bottom connected with the control tank top and bottom through a gas-release and liquid-release pipe, a control tank with a floating-ball regulating valve inside and a gas/liquid outlet pipe on top/bottom, a liquid flowmeter, a constituent device, a gas meter on a gas release pipe, and a gas-liquid buffer tank, wherein the gas-release pipe and liquid-release pipe conflux at the confluxing pipe. This invention has measuring precision up to +-0.5~2%, fit to run for long term reliably, and has small size and weight for wide application.
Description
Technical field
The present invention relates to a kind of oil field gas-liquid polyphase flow measuring apparatus, especially Oil, Water, Gas three-phase flow metering apparatus.
Background technology
Oil field polyphasic flow quantitative study starts from the twentieth century offshore oil field development of the seventies, and integrated oil company and mechanism all are devoted to the research of heterogeneous measurement technology and device both at home and abroad, and research method relates to physical principle and up-to-date measuring technique.And developed commercially produced product.Concluding its product technology can divide oil well produced liquid not separate to mix heterogeneous metering and separates phase-splitting and measure.Use the measuring products of no gas-liquid separation technology, mixing weighing technology such as venturi, gamma ray, capacitive/inductive correlation method have been adopted, carry out heterogeneous metering, this measuring products is through rig-site utilization, having measuring accuracy, lower (the liquid phase deviation is ± 10～20%, the gas phase deviation is ± 10～30%, and the water percentage deviation is ± 10～20%), measure the problems such as flow pattern and fluidised form influence that are subjected to; The measuring products measuring principle of using isolation technics is gas-liquid separation, the phase-splitting metering, and measurement is not influenced by flow pattern and fluidised form, and measuring accuracy is higher.The product measuring accuracy was better than 5% in 2005.Therefore, one of difficult point is exactly as where improving gas-liquid separation efficient and steadily control gas-liquid phase-splitting measurement problem in the present gas-liquid Multiphase Fluid Measurement Technology field, oil field.
In the gas-liquid Multiphase Fluid Measurement Technology of existing oil field, Chinese patent discloses a kind of " oil gas self-measuring device ", and (patent No. is: ZL 200420041937.5) have provided a kind of oil gas self-measuring device, and the application of having succeeded in the production in oil field by land, but, said apparatus is for intermittently coming liquid, and especially for liquid gas variation situation greatly, measuring accuracy can obviously reduce, therefore, its technology has certain limitation.
Summary of the invention
The objective of the invention is provides a kind of Oil, Water, Gas three-phase to flow self-measuring device in order to overcome shortcoming of the prior art and limitation; This measuring apparatus is applicable to that the automatic phase-splitting on-line metering of gas-liquid of any flow patterns such as individual well, gas-liquid delivery, the multiphase flow rates that especially intermittently comes liquid, gas-liquid to change greatly measure, and phase-splitting liquid capacity metering degree of accuracy can reach ± 0.5～2%.
Purpose of the present invention can realize by following measure:
A kind of Oil, Water, Gas three-phase stream self-measuring device is by flange and pipeline knockout drum, gas-liquid controlling tank, liquid flowmeter, oil gas water component instrument, gas meter, gas-liquid surge tank to be connected to form profit gas phase-splitting metering pipe network.The knockout drum middle and upper part links to each other with the gas-liquid induction pipe, is being provided with the gas-liquid cyclone centrifugal separator with gas-liquid induction pipe connecting place, and cyclone centrifugal separator is a cylindrical structural, vertically places the middle and upper part in the knockout drum, and the center symmetry; Knockout drum is built-in with flow regulation valve, and flow regulation valve is connected with gas outlet tube; The tank body upper and lower tangentially is connected in gas channeling ring and guiding fluid ring in gas-liquid controlling tank middle and upper part and the middle and lower part by gas outlet and discharging tube respectively, and the gas channeling ring is concentric with gas-liquid controlling tank main body, and Open Side Down, is hollow tube-shape; The guiding fluid ring is concentric with the gas-liquid controlling tank, and opening upwards; The knockout drum upper and lower is connected with middle and lower part (tangentially) with the middle and upper part of gas-liquid controlling tank with discharging tube by gas outlet respectively; Gas-liquid controlling tank top is provided with gas outlet tube, and the middle and lower part is provided with liquid outlet tube, and gas outlet tube links to each other with the gas liquid outlet pipe at gas-liquid header place with liquid outlet tube; On outlet gas line, be provided with gas vent valve, gas meter, between gas-liquid header and gas meter pipeline the gas-liquid surge tank is housed, gas-liquid surge tank lower end vertically is connected with the gas-liquid header, the upper end is connected with the gas meter outlet, liquid exit line is provided with liquid flowmeter and profit gas component instrument, and profit gas component instrument vertically is connected on liquid outlet tube (13) pipeline.
Eddy flow centrifuge tube in the above-mentioned gas-liquid cyclone centrifugal separator is square or rectangle, and spiral places guiding to separate in the sleeve pipe from top to bottom; Guiding is separated sleeve pipe bottom (the eddy flow centrifuge tube is with the lower part) and is covered with mesh, and guiding is separated the sleeve pipe bottom and is provided with the gas-liquid separation sieve; Gas-liquid separation sieve gas-liquid separation sieve is loudspeaker cone-shaped structure, convex surface upwards, convex surface and separating tank surface level angle θ are covered with mesh less than 90 ° on the convex surface, the smooth connection of interior pipe lower end that convex surface mouth and guiding are separated sleeve pipe; The external diameter of gas-liquid separation sieve separates the external diameter of sleeve pipe less than the internal diameter of knockout drum greater than guiding; The diameter of pipe was identical in gas-liquid separation was sieved center-hole diameter and guiding is separated sleeve pipe.
Valve seat connecting pipe in the above-mentioned flow regulation valve is fixed on the bottom at controlling tank top end cover center, and is connected with valve seat, gas outlet tube smooth transition; There is a valve opening at the valve seat center, and valve body is smooth sphere shape or truncated cone-shaped; The bottom surface largest end face of spool is connected with the valve body smooth transition; Ball float is hollow ball or hollow cylinder; One end of ball float link rod is connected with valve body center symmetry smooth transition, and other end center symmetry penetrates the ball float smooth transition and connects; Ball float places on the interior ball float guides of gas-liquid controlling tank; The ball float guides places in the gas-liquid controlling tank middle and lower part and with one heart, and guide pole one end is vertically fixed on the center on chassis, and the other end is on vertically, and chassis level is fixed in the gas-liquid controlling tank middle and lower part and with one heart, and the chassis has into the liquid flow hole of net form.The valve opening diameter is less than the gas outlet tube caliber.
Spool tapering size and cone length depend on measures tolerance journey range size, and its maximum sole diameter is less than the aperture of valve opening.
The valve body minimum outer diameter is greater than the aperture of valve opening.
The ball float link rod is that diameter is the pipe less than the diameter of valve body.
The diameter of guide pole is less than the internal diameter of ball float link rod, and length is greater than the length of spool.
Total circulation area of liquid flow hole perforate is greater than the circulation area of gas-liquid induction pipe.
Liquid level when the Horizontal Exit height of gas-liquid header need be higher than the ball float floating that places in the gas-liquid controlling tank, the liquid level when being lower than valve body and pushing up valve seat in the controlling tank.
The volume of gas-liquid surge tank arrives the volume in the pipeline between the gas-liquid surge tank upper end greater than gas outlet tube.
The present invention has following advantage compared to existing technology:
1, the automatic phase-splitting on-line metering of gas-liquid of any flow pattern, the multiphase flow rates that especially intermittently comes liquid, gas-liquid to change greatly of being applicable to of the present invention measured, and the measuring accuracy height, and phase-splitting liquid capacity metering degree of accuracy can reach ± and 0.5～2%.。
2, measurement broad quantum of the present invention, range ratio can reach more than 1: 25, and measure linear, good reproducibility.
3, the present invention is simple in structure: whole device inside and outside does not have auxiliary electric-control system, and long-time running is reliable and stable, and the pressure loss is little;
4, little, in light weight, the dismounting of volume of the present invention convenient save time, keep in repair easy.
5, individual phase measurement of the present invention is steady, and measuring accuracy is not influenced by gas-liquid flow pattern and fluid state; Applicable media range of viscosities wide (thin oil, heavy oil etc.).
Description of drawings
Fig. 1 is an Oil, Water, Gas three-phase stream self-measuring device structural representation
Fig. 2 is Fig. 1 gas-liquid cyclone centrifugal separator structural representation
Fig. 3 A is Fig. 1 gas channeling ring structure synoptic diagram
Fig. 3 B is Fig. 1 guiding fluid ring structure synoptic diagram
Fig. 4 is the flow regulation valve structural representation of Fig. 1
Fig. 5 is the ball float guide structure synoptic diagram of Fig. 1
Description of reference numerals is as follows:
1-gas-liquid induction pipe 2-knockout drum
3-cyclone centrifugal separator 31-cyclone separator inlet 32-eddy flow centrifuge tube
The 33-guiding is separated sleeve pipe 34-mesh 35-gas-liquid separation sieve 36-center pit
4-gas outlet 5-discharging tube 6-gas channeling ring 61-conductance is encircled in inlet 62-
7-gas-liquid controlling tank
8-flow regulation valve 81-valve seat connecting pipe 82-valve seat 821-valve opening
83-spool 84-valve body 85-ball float link rod 86-ball float
9-ball float guides 91-guide pole 92-chassis 93-liquid flow hole
Ring in the 10-guiding fluid ring 101-liquid guiding inlet 102-
11-controlling tank top end cover 12-gas outlet tube
13-liquid outlet tube 14-liquid outlet valve 15-liquid flowmeter
16-profit gas component instrument 17-gas-liquid header 18-gas-liquid surge tank 19-gas meter
20-gas vent valve 21-knockout drum base 22-gas-liquid controlling tank base
23-temperature transmitter 24-pressure unit 25-gas liquid outlet pipe 26-blowoff valve
27-measuring apparatus base
Embodiment
Below in conjunction with accompanying drawing the utility model is described in any further:
As shown in Figure 1, gas and liquid mixture enters the cyclone centrifugal separator 3 that places in the knockout drum 2 by gas-liquid induction pipe 1 by cyclone separator inlet 31, separates the preliminary gas-liquid separation that realizes by cyclone centrifugal separator 3; The air containing fluid that process eddy flow centrifuge tube 32 separates is at inertia---and gravity separates continuation centrifuging in the sleeve pipe 33 with action of centrifugal force lower edge guiding, unrestrained downwards to placing guiding to separate on the gas-liquid separation sieve 35 of sleeve pipe 33 lower ends, the inwall that sieves the liquid runs down knockout drum 2 of 35 sub-sieves through gas-liquid separation flows down, flow to the gas outlet 4 at knockout drum 2 tops on the gas, through the centrifuging of cyclone centrifugal separator 3, the free gas in the gas and liquid mixture that pipeline comes can reach and separate fully and the centrifuging of most of hatching gas thus.
In Fig. 2, gas-liquid cyclone centrifugal separator 3 is columnar structured, vertically places the middle and upper part in the gas-liquid controlling tank 7, the center symmetry; The Way in of cyclone separator inlet 31 and cyclone centrifugal separator 3 be tangent line to, its objective is in order to reduce flow resistance; Eddy flow centrifuge tube 32 is square, and spiral places guiding to separate in the sleeve pipe 33 from top to bottom, spiral two circles, and the circulation area of eddy flow centrifuge tube 31 is less than the circulation area of induction pipe 1; Guiding is separated sleeve pipe 33 bottoms (eddy flow centrifuge tube 32 is with the lower part) and is covered with mesh 34, so that increase liquid gas release surface, guarantees separated gas upper reaches of separating out; Guiding is separated the sleeve pipe bottom and is provided with gas-liquid separation sieve 35; Gas-liquid separation sieve 35 is the loudspeaker conical structure, convex surface upwards, convex surface and knockout drum 2 sections (surface level) angle θ are less than 90 °, be covered with mesh 34 on the convex surface, so that increase liquid gas release surface, the smooth connection of interior pipe lower end that convex surface mouth and guiding are separated sleeve pipe 33, its objective is in order to separate the fallen liquid of sleeve pipe 33 eddy flows from guiding and can flow down by pleasant liquid controlling tank 7 inwalls, the interior a small amount of remaining gas of liquid is further separated out, guarantee to have separated the gas upper reaches of separating out below gas-liquid separation sieve 35: the external diameter of gas-liquid separation sieve 35 is less than the internal diameter of knockout drum 2, separate the external diameter of sleeve pipe 33 greater than guiding, it is identical that the caliber that 35 center pits, 36 diameters and guiding separate pipes in the sleeve pipe 33 is sieved in gas-liquid separation.
Gas-liquid controlling tank 7 is made up of can body, top end cover 11, flow regulation valve 8, gas outlet tube 12, liquid outlet tube 13, blowoff valve 26 and ball float guides 9 etc.Controlling tank top end cover 11 is fixed by bolts to the can body top, and the gas outlet tube 12 of flow regulation valve 8 links to each other with gas outlet valve 20, after gas meter 19, gas-liquid surge tank 18, gas-liquid header 17 link to each other with gas liquid outlet pipe 25; Liquid outlet tube 13, liquid outlet valve 14 and liquid flowmeter 15 link to each other on same pipeline, and profit gas component instrument 16 vertically is connected in the endpiece of liquid flowmeter 15; One blowoff valve 26 is arranged at gas-liquid controlling tank 7 bottoms; Liquid outlet tube 13 is located at gas-liquid controlling tank 7 middle and lower parts, connects gas-liquid header 17 and gas liquid outlet pipe 25 behind liquid outlet valve 14 and the liquid flowmeter 15 that links to each other, profit gas component instrument 16.
With reference to Fig. 4, flow regulation valve 8 is made up of valve seat connecting pipe 81, valve seat 82, spool 83, valve body 84, floating ball rod 85, ball float 86.The valve seat connecting pipe 81 of flow regulation valve 8 is connected with valve seat 82, gas outlet tube 12 smooth transition, and valve seat connecting pipe 81 is communicated with gas outlet tube 12, and is fixed on the bottom at end cap 11 centers, separating controlling tank top.There is a valve opening 821 at valve seat 82 centers, and valve opening 821 diameters are less than gas outlet tube 12 calibers; Spool 83 is a cone, and tapering size and cone length depend on measures tolerance journey range size, and its maximum sole diameter is less than the aperture of valve opening 821, and valve body 84 is a smooth sphere shape, and its minimum outer diameter is greater than the aperture of valve opening 821; The bottom surface of spool 83 (largest end face) is connected with valve body 84 smooth transition; Ball float link rod 85 is the pipe of diameter less than the diameter of valve body 54, and ball float 86 is a hollow cylinder; One end of ball float link rod 85 is connected with valve body 84 centers symmetry smooth transition, and other end center symmetry penetrates ball float 86 and smooth transition connects; Ball float 86 places on the ball float guides 9 in the gas-liquid controlling tank 7, and fluctuate at ball float guides 9 with the tank level fluctuation under buoyancy function: the level fluctuation of gas-liquid controlling tank 7 acts on knee-action in the valve opening 821 of spools 83 at valve seat 82 by ball float 86 by ball float link rod 85, with effective flow area of adjustments of gas outlet, reach in the automatic adjusting controlling tank and the pressure reduction between the outlet and the size of liquid outlet flow.
With reference to Fig. 5, ball float guides 9 places middle and lower part and concentric in the gas-liquid controlling tank 7, ball float guides 9 is made up of guide pole 91, chassis 92 and liquid flow hole 93, guide pole 91 1 ends are vertically fixed on the center on chassis 92, the other end straight up, the diameter of guide pole 91 is less than the internal diameter of ball float link rod 85, the length length greater than spool 53; Chassis 92 horizontal fixed are middle and lower part and concentric in gas-liquid controlling tank 7, chassis 92 has the liquid flow hole 93 that is net form, total circulation area of institute's perforate is greater than the circulation area of gas-liquid induction pipe 1, with guarantee the ball float guides about in the of 9 liquid do not have crushing and flow, the purpose of the setting of ball float guides 9 is that restriction ball float 86 swings when liquid level rises or descend and influences the stable control of liquid level, reaches the stable of control liquid level.
Liquid outlet tube 13, liquid outlet valve 14 and liquid flowmeter 15 link to each other on same pipeline, profit gas component instrument 16 vertically is connected in the endpiece and the gas-liquid header 17 of liquid flowmeter 15, the liquid level when the Horizontal Exit height of gas-liquid header 17 is higher than ball float 86 floatings that place in the gas-liquid controlling tank 7, the liquid level when being lower than valve body 84 and pushing up valve seat 82 in the gas-liquid controlling tank 7; Gas-liquid surge tank 18 lower ends vertically are connected with gas-liquid header 17, the upper end is connected with gas meter 19 outlets, the volume of gas-liquid surge tank 18 arrives the volume in the pipeline between gas-liquid surge tank 18 upper ends greater than gas outlet tube 12, its objective is the measuring accuracy that influences gas meter 19 in order to stop backflowing of gas-liquid header 17 place's liquid.
The present invention has adopted two jars of gas-liquid separation control technologys, realize separating with the eddy flow centrifugal separation technology to hatching the automatic of gas with part separating fully of free gas in the gas and liquid mixture, adopt the Floating Ball Liquid Level Control technology by the liquid level height directly controlled the flow of gas vent, the flow of the indirect controlling liquid outlet of differential pressure that forms by the height and the liquid road flow resistance of outlet header, played automatic steady control action, thereby realized gas-liquid phase-splitting accurate measurement the gas-liquid flow.Its principle of work is: profit gas mixed liquor is realized the centrifugal initial gross separation of free gas eddy flow by gas-liquid eddy flow centrifuge tube 32, the air containing fluid that separates through eddy flow centrifuge tube 32 separates continuation centrifuging in the sleeve pipe 33 in the effect lower edge of inertia (gravity and centrifugal force) guiding, and it is unrestrained down to placing guiding to separate on the gas-liquid separation sieve 35 of sleeve pipe 33 lower ends, the inwall that sieves the liquid runs down knockout drum 2 of 35 sub-sieves through gas-liquid separation flows down, the liquid that contains a small amount of hatching gas that has separated tangentially enters gas-liquid controlling tank 7 through liquid outlet tube 5 and guiding fluid ring 10, and gas is partly hatched in centrifuging once more; The separated gas that contains small amount of liquid (moisture) flows to the gas outlet pipe 4 at knockout drum 2 tops on then, enter gas-liquid controlling tank 7 by gas channeling ring 6 tangential swirls, secondary centrifuging is separated in the gas and is contained liquid, through the centrifuging of cyclone centrifugal separator 3, the free gas in the gas and liquid mixture that pipeline comes can reach and separate fully and the centrifuging of most of hatching gas thus.
Before gas-liquid controlling tank 7 normal liquid levels are not set up, flow regulation valve 8 is in position, the end for a short time in the effect of gravity, it is full open position, separated gas is by without hindrance discharge between the valve opening 821 opened and the spool 83, this moment, no liquid measure was discharged because jar interior liquid level is lower than the open height that of outlet gas-liquid header 17; When rising to the range of control lower limit gradually and continue, the liquid level of gas-liquid controlling tank 7 rises, ball float 86 under buoyancy function along ball float guides 9 buoyance lift upwards, spool 83 rises with ball float 86, circulation area between valve opening 821 and the spool 83 reduces, the gas discharge rate reduces, liquid level further rises in jar, the interior differential pressure with the header place of controlling tank this moment rises gradually, liquid level rises to the height that is higher than gas liquid outlet header 17 in jar, after the jar internal pressure reaches the required pressure reduction of discharge opeing (flow resistance differential pressure) with the differential pressure that exports header 17, liquid begins to discharge gas-liquid controlling tank 7, this moment, Tathagata liquid was big, liquid level continues to rise in jar, then the gas delivery flow reduces, differential pressure increases, and draining flow increases thereupon, and a jar interior liquid level begins to descend subsequently, it is big that the ball-cock assembly circulation area becomes, outlet tolerance increases, differential pressure reduces thereupon, the outlet liquid measure also reduces thereupon, repeats said process, reaches a kind of gas-liquid turnover plateau at last; Tathagata airshed is big, differential pressure increases, liquid level begins to descend in jar, big, outlet tolerance increase that the ball-cock assembly circulation area becomes, when dropping to the height that is lower than gas liquid outlet header 17 and the required differential pressure of discharge opeing, draining flow diminishes thereupon, and the liquid level of gas-liquid controlling tank 7 begins again to rise gradually simultaneously, repeat above-mentioned liquid level uphill process, reach gas-liquid controlling tank 7 interior liquid levels and change within a certain height.After this, if the gas liquid ratio of the gas and liquid mixture that pipeline comes and efflux line pressure variations, cause the rising or the decline of liquid level in the separating controlling jar 7, flow regulation valve 8 all can be controlled at pressure reduction on the required numerical value of discharge opeing automatically, liquid level is controlled in the scope of setting.For low discharge,, form gap discharge opeing metering (atmospheric pressure apocenosis) by the height and the required differential pressure of liquid road flow resistance of outlet header 17; For little tolerance is gap exhaust metering too.
It is to influence the gasometer accuracy of measurement for the pressure surge of avoiding gas liquid outlet pipe 26 causes the anti-gas meter that is poured into of liquid that gas-liquid surge tank 18 purposes wherein are installed, and profit gas component instrument 16 is used for water percentage, the void fraction of on-line monitoring liquid road fluid.
Knockout drum 2 is shelved on respectively on the knockout drum base 21 gentle liquid controlling tank bases 22 with gas-liquid controlling tank 7, and whole erection seat drops on the measuring apparatus base 27.
Claims (10)
1. an Oil, Water, Gas three-phase stream self-measuring device is by flange and pipeline knockout drum (2), gas-liquid controlling tank (7), liquid flowmeter (15), oil gas water component instrument (16), gas meter (19), gas-liquid surge tank (18) to be connected to form profit gas phase-splitting metering pipe network, it is characterized in that knockout drum (2) top links to each other with gas-liquid induction pipe (1), be provided with gas-liquid cyclone centrifugal separator (3) with gas-liquid induction pipe (1) connecting place, vertically place the middle and upper part in the knockout drum (2), and the center symmetry; Knockout drum (2) is built-in with flow regulation valve (8), and flow regulation valve (8) is connected with gas outlet tube (12); The tank body upper and lower tangentially is connected in gas channeling ring (6) and guiding fluid ring (10) in gas-liquid controlling tank (7) middle and upper part and the middle and lower part by gas outlet (4) and discharging tube (5) respectively, gas channeling ring (6) is concentric with gas-liquid controlling tank (7) main body, Open Side Down, be hollow tube-shape: the guiding fluid ring (10) of the interior middle and lower part of gas-liquid controlling tank (7) is concentric with gas-liquid controlling tank (7), and opening upwards; Gas-liquid controlling tank (7) top is provided with gas outlet tube (12), and the bottom is provided with liquid outlet tube (13), and gas outlet tube (12) is located to link to each other with gas liquid outlet pipe (25) at gas-liquid header (17) with liquid outlet tube (13); On gas outlet tube (12) pipeline, be provided with gas vent valve (20), gas meter (19), between gas-liquid header (17) and gas meter (19) pipeline gas-liquid surge tank (18) is housed, gas-liquid surge tank (18) lower end is connected with gas-liquid header (17), and the upper end is connected with gas meter (19) outlet; Liquid outlet tube (13) pipeline is provided with liquid outlet valve (14), liquid flowmeter (15) and profit gas component instrument (16), and profit gas component instrument (16) vertically is connected on liquid outlet tube (13) pipeline.
2. Oil, Water, Gas three-phase stream self-measuring device as claimed in claim 1 is characterized in that cyclone centrifugal separator (3) for columnar structured, and eddy flow centrifuge tube (32) is square or rectangle, and spiral places guiding to separate in the sleeve pipe (33) from top to bottom; Guiding is separated sleeve pipe (33) bottom and is covered with mesh (34), and the bottom is provided with gas-liquid separation sieve (35); Gas-liquid separation sieve (35) be a loudspeaker cone-shaped structure, and convex surface makes progress, and convex surface and knockout drum (2) surface level angle θ is covered with mesh (34) less than 90 ° on the convex surface, the smooth connection of interior pipe lower end that convex surface mouth and guiding are separated sleeve pipe (33); The external diameter of gas-liquid separation sieve (35) separates the external diameter of sleeve pipe (33) less than the internal diameter of knockout drum (2) greater than guiding; Gas-liquid separation sieve (35) center pit (36) diameter is identical with the diameter that guiding is separated the interior pipe of sleeve pipe (33).
3. Oil, Water, Gas three-phase stream self-measuring device as claimed in claim 1, it is characterized in that the valve seat connecting pipe (81) in the flow regulation valve (8) is fixed on the bottom at controlling tank top end cover (11) center, and be connected with valve seat (82), gas outlet tube (12) smooth transition; There is a valve opening (821) at valve seat (82) center, and valve body (84) is smooth sphere shape or truncated cone-shaped; The bottom surface largest end face of spool (83) is connected with valve body (84) smooth transition; Ball float (86) is hollow ball or hollow cylinder; One end of ball float link rod (85) is connected with valve body (84) center symmetry smooth transition, and other end center symmetry penetrates ball float (86) smooth transition and connects, and places on the interior ball float guides (9) of gas-liquid controlling tank (7); Guide pole (91) one ends in the ball float guides (9) are vertically fixed on the center of chassis (92), the other end straight up, chassis (92) horizontal fixed middle and lower part and with one heart in gas-liquid controlling tank (7), chassis (92) have into the liquid flow hole (93) of net form; Valve opening (821) diameter is less than gas outlet tube (12) caliber.
4. Oil, Water, Gas three-phase stream self-measuring device as claimed in claim 3 is characterized in that spool (83) tapering size and cone length depend on measurement tolerance journey range size, and spool (83) maximum sole diameter is less than the aperture of valve opening (821).
5. Oil, Water, Gas three-phase stream self-measuring device as claimed in claim 3 is characterized in that the aperture of valve body (84) minimum outer diameter greater than valve opening (821).
6. Oil, Water, Gas three-phase stream self-measuring device as claimed in claim 3 is characterized in that ball float link rod (85) is the pipe of external diameter less than valve body (84) external diameter.
7. Oil, Water, Gas three-phase as claimed in claim 3 stream self-measuring device is characterized in that the diameter of guide pole (91) is less than the internal diameter of ball float link rod (85), the length length greater than spool (83).
8. as claim 1 or 3 described Oil, Water, Gas three-phase stream self-measuring devices, it is characterized in that the circulation area of total circulation area of liquid flow hole (93) perforate greater than gas-liquid induction pipe (1).
9. Oil, Water, Gas three-phase stream self-measuring device as claimed in claim 1, liquid level when the Horizontal Exit height that it is characterized in that gas-liquid header (17) need be higher than ball float (86) floating that places in the gas-liquid controlling tank (7), the liquid level when being lower than valve body (84) and pushing up valve seat (82) in the gas-liquid controlling tank (7).
10. Oil, Water, Gas three-phase stream self-measuring device as claimed in claim 1 is characterized in that the volume of gas-liquid surge tank (18) arrives the volume in the pipeline between gas-liquid surge tank (18) upper end greater than gas outlet tube (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101050041A CN100406857C (en) | 2006-08-08 | 2006-08-08 | Automatic metering device for oil, water and gas three-phase flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101050041A CN100406857C (en) | 2006-08-08 | 2006-08-08 | Automatic metering device for oil, water and gas three-phase flow |
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| CN1908595A CN1908595A (en) | 2007-02-07 |
| CN100406857C true CN100406857C (en) | 2008-07-30 |
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| CN2006101050041A Expired - Fee Related CN100406857C (en) | 2006-08-08 | 2006-08-08 | Automatic metering device for oil, water and gas three-phase flow |
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| CN1908595A (en) | 2007-02-07 |
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