CN102565095B

CN102565095B - High-efficiency portable industrial X-ray defect detector

Info

Publication number: CN102565095B
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: 2013-11-20
Anticipated expiration: 2031-07-06
Also published as: CN102565095A

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

High-efficiency portable industrial X-ray defect detector

(i) technical field: the present invention relates to the non-destructive detecting device of industrial welding workpiece, especially a kind of high-efficiency portable industrial X-ray defect detector.

(ii) background technology: Portable industrial x-ray flaw detector, be widely used in Aero-Space, petrochemical industry, 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 earthenware, heat abstractor, fan etc. are housed in the pipe bucket from top to bottom successively.Existing defectoscope is stable not at work, particularly normal working hours short, normally worked five minutes, take five, service intermittent.2 points of tracing it to its cause: the one: at X ray ceramic pipe cathode terminal, usually designed a very large Electric Field Distribution " all covers ", in order to metal parts and the hi-line bag at anticathode part and pottery (insulating medium) vacuum place of linking, protected; And anode part only relies on ring flange to improve Electric Field Distribution, and antianode metal pressed on ring plays a protective role.And one of normally the weakest link of pressed on ring.This structure, make the metal pressed on ring when work, very easily be subjected to highfield, high-temperature, the impact of high vacuum, make the X ray ceramic pipe can not steady operation, and normal working hours is short, therefore existing X ray ceramic pipe is applied in defectoscope, defectoscope can only be worked five minutes, takes five, and service intermittent.The 2nd: the X ray ceramic pipe in defectoscope very easily produces high temperature when work, and has the heat abstractor poor-performing in defectoscope now, has seriously restricted the normal working hours of defectoscope.

(iii) summary of the invention: purpose of the present invention will solve existing Portable industrial x-ray flaw detector job insecurity exactly, and heat dispersion is poor, seriously restricts the problem of the normal working hours of defectoscope, and a kind of high-efficiency portable industrial X-ray defect detector is provided.

concrete scheme of the present invention is: for existing Portable industrial x-ray flaw detector, improve, it has the pipe bucket, in the pipe bucket, high voltage package is housed successively from top to bottom, all cover field, the X ray ceramic pipe, heat abstractor, fan, described X ray ceramic pipe, has ceramic pipe box, in the top of ceramic pipe box, cathode assembly is housed, lower end at ceramic pipe box is equipped with ring flange, anode assemblies is housed on ring flange, the metal pressed on ring also is equipped with in junction at ring flange and ceramic pipe box, it is characterized in that: a. adds a thermoelectric shielding case at the ring flange upper surface of X ray ceramic pipe, b. described heat abstractor, has the cylindrical heat-radiating seat, this radiating seat upper end offers mounting groove and X ray ceramic pipe anode heat dissipation head is pegged graft, 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 uniform around step surface, one heat pipe is installed in each through hole, every heat pipe two ends are drawn bending from through hole and are parallel to each other near and are radial arrangement, around all heat pipe extension sections, be furnished with some layers of radiating fin.

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

In order to facilitate processing and fabricating, described in the present invention in heat abstractor every layer of radiating fin by two sections, form at least.

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

After thermoelectric shielding case 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 the metal pressed on ring avoid the direct impact of electric field lines, efficiently solve the impact that X ray ceramic pipe metal pressed on ring easily is subjected to highfield, high-temperature, high vacuum, thereby guarantee the ceramic normal and steady operation of X ray.The present invention also is equipped with efficient heat abstractor, applied hot pipe technique and the material of advanced efficient, high conduction performance, thereby can be extended more than one times the normal working hours of defectoscope, 10-20 minute namely works, had a rest 5 minutes, and greatly improved the work efficiency of defectoscope.

(iv) accompanying drawing explanation:

Fig. 1 is general structure master of the present invention (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 shielding case;

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

Fig. 5 is the vertical view of heat abstractor.

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

(v) the specific embodiment:

referring to Fig. 1, the present invention has pipe bucket 1, in pipe bucket 1, high voltage package 2 is housed successively from top to bottom, all the field cover 3, X ray ceramic pipe 4, heat abstractor 7, fan 8, described X ray ceramic pipe 4(is referring to Fig. 2), it has ceramic pipe box 9, cathode assembly is housed (belongs to prior art in the top of ceramic pipe box 9, in figure, do not analyse and observe), in the lower end of ceramic pipe box 9, ring flange 11 is installed, anode assemblies 12 is housed on ring flange 11, in ring flange 11 and the junction of ceramic pipe box 9, metal pressed on ring 10 also is housed, particularly: in the present invention, ring flange 11 upper surfaces at X ray ceramic pipe 4 add a thermoelectric shielding case 5, this radome 5 is the loop configuration with flanging, referring to Fig. 3, and this interior outside of thermoelectric shielding case 5 and junction, upper surface are arc chord angle in the present embodiment, inner arc angle and the undermost first wave of ceramic pipe box 9 shirt rim distance 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 heat-radiating seat 13, these radiating seat 13 upper ends offer mounting groove 14 and peg graft with X ray ceramic pipe anode heat dissipation head 6, 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 uniform around step surface, one this heat pipe 16 of heat pipe 16(is installed in each through hole 15 evaporator section contacts with radiating seat 13, the condensation segment of heat pipe 16 contacts with radiating fin 17), every heat pipe 16 two ends are drawn bending from through hole 15 and are parallel to each other near and are radial arrangement, around all heat pipe 16 extension sections, be furnished with 20 layers of radiating fin 17, every layer of radiating fin 17 by four sections make (certainly make two sections or three sections or more multistage be also feasible).

Claims

1. high-efficiency portable industrial X-ray defect detector, has the pipe bucket, high voltage package, an equal cover, X ray ceramic pipe, heat abstractor, fan are housed in the pipe bucket from top to bottom successively, described X ray ceramic pipe, has ceramic pipe box, in the top of ceramic pipe box, cathode assembly is housed, lower end at ceramic pipe box is equipped with ring flange, anode assemblies is housed on ring flange, the metal pressed on ring also is equipped with in junction at ring flange and ceramic pipe box, it is characterized in that: a. adds a thermoelectric shielding case at the ring flange upper surface of X ray ceramic pipe, in described thermoelectric shielding case, the outside is arc chord angle with the junction, upper surface, and inner arc angle and the undermost first wave of ceramic pipe box shirt rim distance remain on 2-3mm, interior outside arc chord angle radius is 4-6mm, b. described heat abstractor, has the cylindrical heat-radiating seat, this radiating seat upper end offers mounting groove and X ray ceramic pipe anode heat dissipation head is pegged graft, 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, and on the radiating seat step surface, have some axially extending bores, and all through holes are uniform around step surface, one heat pipe is installed in each through hole, every heat pipe two ends are drawn bending from through hole and are parallel to each other near and are radial arrangement, around all heat pipe extension sections, be furnished with some layers of radiating fin.

2. high-efficiency portable industrial X-ray defect detector according to claim 1, it is characterized in that: the evaporator section of described heat pipe contacts with radiating seat, and the condensation segment of heat pipe contacts with radiating fin.

3. high-efficiency portable industrial X-ray defect detector according to claim 1, it is characterized in that: in described heat abstractor, every layer of radiating fin made by two sections at least.