CN102565095A

CN102565095A - High-efficiency portable industrial X-ray defect detector

Info

Publication number: CN102565095A
Application number: CN2011101881084A
Authority: CN
Inventors: 盛志华; 冯宇光
Original assignee: HUBEI SHENGDA TESTOMG MACHINERY CO Ltd
Current assignee: HUBEI SHENGDA TESTOMG MACHINERY CO Ltd
Priority date: 2011-07-06
Filing date: 2011-07-06
Publication date: 2012-07-11
Anticipated expiration: 2031-07-06
Also published as: CN102565095B

Abstract

The invention relates to nondestructive detection equipment for an industrial welded workpiece, and discloses a high-efficiency portable industrial X-ray defect detector, which is provided with a barrel. A flyback transformer, a field uniformizing cover, an X-ray ceramic tube, a heat radiation device and a fan are arranged sequentially in the barrel from top to bottom. The defect detector is characterized in that: a, a thermoelectric shielding cover is arranged on the upper surface of a flange of the X-ray ceramic tube; and b, the heat radiation device is provided with a cylindrical radiation base, steps are arranged on the outer cylindrical surface of the heat radiation base, a plurality of axial through holes are reserved in the surfaces of the steps of the heat radiation base particularly, a heat tube is arranged in each through hole, the two ends of each heat tube are led out and bent to be close to each other in parallel, and are radially distributed, and a plurality of layers of heat radiation fins are distributed around the outer extended sections of all the heat tubes. According to the defect detector, the problem that the conventional portable industrial X-ray defect detector is easily heated, and is poor in heat radiation performance and short in normal operating time is solved; and the defect detector is widely applied to the detection of weld quality in the industries of aerospace, petrochemistry, shipbuilding, automobile parts and the like.

Description

Efficient portable industrial X-ray diagnostic machine

(1) technical field: the present invention relates to the non-destructive detecting device of industrial welding workpiece, especially a kind of efficient portable industrial X-ray diagnostic machine.

(2) background technology: portable industrial X-ray diagnostic machine; Be widely used in Aero-Space, petrochemical complex, shipbuilding, pressure vessel manufacturing industry, auto parts and components, testing of materials, alloy-steel casting etc.; And the part quality that all butt welded seam quality have higher requirements detects; The structure of defectoscope mainly includes the pipe bucket, and high voltage package, an equal cover, X ray ceramic pipe, heat abstractor, fan etc. are housed in the pipe bucket from top to bottom successively.Existing defectoscope is stable inadequately at work, particularly lacks normal working hours, normally works five minutes, takes five service intermittent.2 points of tracing it to its cause: the one: designed a very big Electric Field Distribution " all covers " usually at X ray ceramic pipe cathode terminal, protected in order to the metal parts and the hi-line bag at anticathode part and pottery (insulating medium) vacuum place of linking; And anode part only relies on ring flange to improve Electric Field Distribution, and ring plays a protective role on the antianode metal.Encircle one of normally the weakest link and go up.This structure makes to encircle on the metal when work, very easily to receive highfield, high-temperature; The impact of high vacuum makes the X ray ceramic pipe can not steady operation, and normal working hours is short; Therefore existing X ray ceramic pipe is applied in the defectoscope; Defectoscope can only be worked five minutes, took five service intermittent.The 2nd: the X ray ceramic pipe in the defectoscope very easily produces high temperature when work, and has the heat abstractor poor-performing in the defectoscope now, has seriously restricted the normal working hours of defectoscope.

The (3) summary of the invention: the object of the invention will solve existing portable industrial X-ray diagnostic machine job insecurity exactly, and heat dispersion is poor, seriously restricts the problem of the normal working hours of defectoscope, and a kind of efficient portable industrial X-ray diagnostic machine is provided.

Concrete scheme of the present invention is: improve to existing portable industrial X-ray diagnostic machine; It has the pipe bucket, high voltage package, an equal cover, X ray ceramic pipe, heat abstractor, fan is housed from top to bottom successively, said X ray ceramic pipe in the pipe bucket; Has ceramic pipe box; In the top of ceramic pipe box, cathode assembly is housed, ring flange is installed, anode assemblies is housed on ring flange in the lower end of ceramic pipe box; Also be equipped with on the metal in the junction of ring flange and ceramic pipe box and encircle, it is characterized in that: a. adds a thermoelectric radome at the ring flange upper surface of X ray ceramic pipe; B. said heat abstractor has cylindrical radiating seat, and this radiating seat upper end offers mounting groove and X ray ceramic pipe anode heat dissipation head is pegged graft; The lower end has screw hole; Adopt screw to connect radiating seat and anode heat dissipation head, on the radiating seat external cylindrical surface, be designed with step, particularly on the radiating seat step surface, have some axially extending bores; And all through holes are uniformly distributed with around step surface; One heat pipe is installed in each through hole, every heat pipe two ends from through hole draw bending be parallel to each other near and be radial arrangement, be furnished with the several layers radiating fin around the outer extension of all heat pipes.

In order to guarantee shield effectiveness, the outside is arc chord angle with the junction, upper surface in the thermoelectric radome described in the present invention, and the undermost first ripple shirt rim of inner arc angle and ceramic pipe box distance remains on 2-3mm, and interior outside arc chord angle radius is 4-6mm.

Processing and fabricating for ease, described in the present invention in the heat abstractor every layer of radiating fin form by two sections at least.

Described in the present invention in the heat abstractor evaporator section of heat pipe contact with radiating seat, the condensation segment of heat pipe contacts with radiating fin.

After thermoelectric radome is installed in the present invention additional; Changed the distribution curve of high-voltage electric field line of electric force; X ray ceramic pipe anode tap electric field lines is more evenly distributed; And make and encircle the direct impact of avoiding electric field lines on the metal, efficiently solve and encircle the impact that receives highfield, high-temperature, high vacuum easily on the X ray ceramic pipe metal, thereby guarantee the normal and steady operation of X ray pottery.The present invention also is equipped with heat abstractor efficiently; Used the hot pipe technique and the material of advanced efficient, high conduction performance, thereby can be prolonged more than one times the normal working hours of defectoscope, promptly worked 10-20 minute; Had a rest 5 minutes, and improved the work efficiency of defectoscope greatly.

The (4) description of drawings:

Fig. 1 is general structure master of the present invention (a cuing open) view;

Fig. 2 is the partial sectional view of X ray ceramic pipe;

Fig. 3 is master's (cuing open) view of thermoelectric radome;

Fig. 4 is master's (cuing open) view of heat abstractor;

Fig. 5 is the vertical view of heat abstractor.

Among the figure: 1-manages bucket, the 2-high voltage package, and 3-is a cover all, 4-X ray ceramic pipe, the thermoelectric radome of 5-; 6-X ray ceramic pipe anode heat dissipation head, the 7-heat abstractor, the 8-fan, 9-pottery pipe box encircles on the 10-metal; The 11-ring flange, 12-anode assemblies, 13-radiating seat, 14-mounting groove; The 15-through hole, 16-heat pipe, 17-radiating fin, 18-screw hole.

The (5) embodiment:

Referring to Fig. 1, the present invention has the bucket of pipe 1, and high voltage package 2, equal field cover 3, X ray ceramic pipe 4, heat abstractor 7, fan 8 are housed in the pipe bucket 1 from top to bottom successively; Said X ray ceramic pipe 4 (referring to Fig. 2), it has ceramic pipe box 9, cathode assembly is housed in the top of ceramic pipe box 9 (belongs to prior art; Do not analyse and observe among the figure); In the lower end of ceramic pipe box 9 ring flange 11 is installed, anode assemblies 12 is housed on ring flange 11, also be equipped with the junction of ceramic pipe box 9 at ring flange 11 and encircle 10 on the metal; Particularly: among the present invention; Ring flange 11 upper surfaces at X ray ceramic pipe 4 add a thermoelectric radome 5, and this radome 5 is the loop configuration of a band flanging, referring to Fig. 3; And should be arc chord angle with the junction, upper surface in the thermoelectricity radome 5 interior outsides in the present embodiment; Inner arc angle and ceramic pipe box 9 undermost first ripple shirt rim distances remain on 2-3mm; Be specially 2mm, interior outside arc chord angle radius is 4-6mm, is specially 5mm; And heat abstractor described in the present invention 7; Referring to Fig. 4,5, it has cylindrical radiating seat 13, and these radiating seat 13 upper ends offer mounting groove 14 and peg graft with X ray ceramic pipe anode heat dissipation head 6; The lower end has screw hole 18; Adopt screw to connect radiating seat 13 and anode heat dissipation head 6, on radiating seat 13 external cylindrical surfaces, be designed with step, particularly on radiating seat 13 step surfaces, have 12 axially extending bores 15; And all through holes 15 are uniformly distributed with around step surface; One heat pipe 16 (evaporator section of this heat pipe 16 contacts with radiating seat 13, and the condensation segment of heat pipe 16 contacts with radiating fin 17) is installed in each through hole 15, every heat pipe 16 two ends from through hole 15 draw bending be parallel to each other near and be radial arrangement; Be furnished with 20 layers of radiating fin 17 around all heat pipe 16 outer extensions, every layer of radiating fin 17 by four sections process (process certainly two sections or three sections or more multistage also be feasible).

Claims

1. efficient portable industrial X-ray diagnostic machine; Have the pipe bucket, high voltage package, an equal cover, X ray ceramic pipe, heat abstractor, fan are housed from top to bottom successively, said X ray ceramic pipe in the pipe bucket; Has ceramic pipe box; In the top of ceramic pipe box, cathode assembly is housed, ring flange is installed, anode assemblies is housed on ring flange in the lower end of ceramic pipe box; Also be equipped with on the metal in the junction of ring flange and ceramic pipe box and encircle, it is characterized in that: a. adds a thermoelectric radome at the ring flange upper surface of X ray ceramic pipe; B. said heat abstractor has cylindrical radiating seat, and this radiating seat upper end offers mounting groove and X ray ceramic pipe anode heat dissipation head is pegged graft; The lower end has screw hole; Adopt screw to connect radiating seat and anode heat dissipation head, on the radiating seat external cylindrical surface, be designed with step, particularly on the radiating seat step surface, have some axially extending bores; And all through holes are uniformly distributed with around step surface; One heat pipe is installed in each through hole, every heat pipe two ends from through hole draw bending be parallel to each other near and be radial arrangement, be furnished with the several layers radiating fin around the outer extension of all heat pipes.

2. efficient portable industrial X-ray diagnostic machine according to claim 1 is characterized in that: the outside is arc chord angle with the junction, upper surface in the said thermoelectric radome, and the undermost first ripple shirt rim of inner arc angle and ceramic pipe box distance remains on 2-3mm; Interior outside arc chord angle radius is 4-6mm.

3. efficient portable industrial X-ray diagnostic machine according to claim 1, it is characterized in that: the evaporator section of said heat pipe contacts with radiating seat, and the condensation segment of heat pipe contacts with radiating fin.

4. efficient portable industrial X-ray diagnostic machine according to claim 1 is characterized in that: every layer of radiating fin processed by two sections at least in the said heat abstractor.