CN212721941U - Welding seam vacuum leakage testing device - Google Patents
Welding seam vacuum leakage testing device Download PDFInfo
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- CN212721941U CN212721941U CN202021514853.4U CN202021514853U CN212721941U CN 212721941 U CN212721941 U CN 212721941U CN 202021514853 U CN202021514853 U CN 202021514853U CN 212721941 U CN212721941 U CN 212721941U
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- welding seam
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- test device
- vacuum leakage
- vacuum
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Abstract
The utility model discloses a welding seam vacuum leakage test device, including welding seam vacuum leakage test device sealed cowling, welding seam vacuum leakage test device sealed cowling is provided with the open edge all around of rectangular cover body bottom and has the skirt, and the skirt bottom is provided with ring packing, and the admission valve is opened after accomplishing the observation for the recovery ordinary pressure in the welding seam vacuum leakage test device sealed cowling. The utility model discloses a bar electromagnet produces the laminating degree of magnetic force promotion ring type sealing washer and steel sheet, and can conveniently adjust magnetic force size, when waiting to examine welding seam and steel sheet surface unevenness, especially during the overlap joint welding seam detects, artifical supplementary external force has been saved, effectively promote work efficiency, the built-in LED waterproof lamp area of sealed cowling, can be used to the higher operational environment of explosion-proof grade, the cover body should adopt soft magnetic material, magnetic conductivity is big, easy magnetization, easy demagnetization, easily maintain or change, cover body inner space is less, reduce the evacuation time, effectively improve the welding seam gas tightness and detect the effect.
Description
Technical Field
The utility model relates to a nondestructive test field, in particular to welding seam vacuum leakage test device.
Background
At present, the vacuum box method is a main method for checking the tightness of welding seams, and is widely applied to the nondestructive inspection of storage tanks. The construction specification of a vertical cylindrical steel welding storage tank, section 7.2, requires that a storage tank bottom plate, a floating roof top plate, a bottom plate and a single-disc plate are subjected to a tightness test by adopting a vacuum box method, the negative pressure value of the test is not lower than 53kPa, and no leakage is qualified. "
In practice, however, it has been found that the height of the overlap weld (difference in height between the steel plates on both sides of the weld) is too great for some of the plates, in particular the difference in height of the overlap tee weld of the can bottom plate can even exceed 30 mm. The existing vacuum leakage testing device has the problem that sealing and fitting are not tight at the intersection of the existing vacuum leakage testing device and the lap weld joint in the detection of the butt weld joint, and large external force is required to be added manually for a long time so as to be matched with the cover body to form a vacuum condition, so that the detection efficiency is low. In addition, the light of the operation environment for implementing detection is often darker, and the leakage point is difficult to observe clearly under the condition that the inspector holds the mobile light source or embeds a single-side light source at the present stage, so that the inspection efficiency is low, even the inspection is missed, and the quality or the potential safety hazard is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome prior art's defect, provide a welding seam vacuum leakage test device, can accomplish when waiting to examine welding seam and steel sheet surface unevenness, especially utilize the electromagnet adsorption power to promote welding seam vacuum leakage test device tightness in the overlap joint welding seam detects, and the adsorption power size is adjustable, and welding seam vacuum leakage test device embeds LED waterproof lamp area, forms even light source, improves the device observation condition.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a welding seam vacuum leakage test device, which comprises a welding seam vacuum leakage test device sealing cover, wherein the welding seam vacuum leakage test device sealing cover is provided with a rectangular cover body, the peripheral opening edge of the bottom of the rectangular cover body is provided with a skirt seat, the bottom of the skirt seat is provided with an annular sealing ring, a rectangular transparent observation window and a handle are tightly embedded at the top of the welding seam vacuum leakage test device sealing cover, the handle is positioned at two sides of the transparent observation window, strip-shaped electromagnets are respectively arranged at two outer sides of the long edge of the welding seam vacuum leakage test device sealing cover, the strip-shaped electromagnets are arranged on the upper surface of the skirt seat, a device side plate screw is adjacently arranged at one side of the strip-shaped electromagnets, a through hole is arranged at one side of the long edge in the welding seam vacuum leakage test device sealing cover, a tee is arranged at one side of the through hole, two sides of the tee are respectively connected, the short exhaust pipe is connected with an air compressor or a vacuum pump and used for generating vacuum negative pressure, the air inlet valve is opened after observation is completed, so that normal pressure is recovered in the sealing cover of the welding seam vacuum leakage testing device, strip-shaped LED waterproof lamp strips are further arranged on four sides of the inner side of the sealing cover of the welding seam vacuum leakage testing device, a power box is arranged on one side of the short side of the sealing cover of the welding seam vacuum leakage testing device and is installed on the upper surface of the skirt, a storage battery and a circuit are arranged in the power box, strip-shaped electromagnet control knobs and lighting switch buttons are respectively arranged on two sides of the power box, the electromagnet control knobs control the magnetic force between the strip-shaped electromagnets and the steel plate through adjusting the current in the electromagnet circuits, and accordingly the attaching degree of the annular sealing ring is changed.
As an optimal technical scheme of the utility model, state welding seam vacuum leakage test device sealed cowling and should adopt soft magnetic material.
As a preferred technical scheme of the utility model, the annular seal material should be selected for airtight sponge rubber.
As a preferred technical scheme of the utility model, bar electromagnet and device curb plate screw fixed connection, the battery is connected with the electrified nature of bar electromagnet and bar LED waterproof lamp respectively.
As a preferred technical scheme of the utility model, bar LED waterproof lamp area is close to the seal ring fixed position, bar LED waterproof lamp area is provided with LED pointolite and flexible line way board, and the LED pointolite is pasted on the flexible line way board.
As the utility model discloses a preferred technical scheme, the power supply box design is explosion-proof box, and the outside chamber door is by two screwed connection in upper portion, and the power supply box passes through the power supply box with the bar electro-magnet (both sides are preset and are hidden the trompil and carry out line connection, hide the trompil through the interior plate with bar LED waterproof lamp area and carry out line connection to the trompil position inboard all installs sealed rubber ring additional, and the accessible is dismantled the screw and is opened the power supply box chamber door, carries out battery replacement and circuit inspection.
As an optimal technical scheme of the utility model, the annular seal circle can be controlled to the electro-magnet control knob and the steel sheet closely laminates, promotes in the welding seam vacuum leakage testing device sealed cowling tightness, and in the relatively poor detecting environment of lighting conditions, lighting switch button is opened to the accessible and the even light source of setting.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model improves the attaching degree of the ring-shaped sealing ring and the steel plate by generating magnetic force through the bar-shaped electromagnet, and can conveniently adjust the magnetic force, when the welding line to be detected and the surface of the steel plate are uneven, especially in the lap welding line detection, the manual auxiliary external force is saved, the working efficiency is effectively improved, the LED waterproof lamp belt is arranged in the sealing cover, a uniform light source is generated, the LED waterproof lamp belt can be particularly used in the humid detection environment with poor lighting condition, the observation condition is obviously improved, the high-efficiency and accurate detection effect is realized, the power box is designed as an explosion-proof box, the sealing rubber ring is arranged in the opening part, the LED waterproof lamp belt can be used in the working environment with higher explosion-proof grade, the cover body adopts soft magnetic materials, the magnetic conductivity is large, the magnetization and the demagnetization are easy, the magnetic force conduction and the movement and the carrying of the, easy maintenance or change, the internal space of the cover body is smaller, the vacuumizing time is reduced, and the air tightness detection effect of the welding seam is effectively improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of the welding seam vacuum leakage testing device of the present invention;
FIG. 2 is a top view of the vacuum leak testing device for weld joints of the present invention;
FIG. 3 is a front view of the welding seam vacuum leakage testing device of the present invention;
FIG. 4 is a rear view of the vacuum leak testing device for weld joints of the present invention;
FIG. 5 is a left side view of the welding seam vacuum leakage testing device of the present invention;
FIG. 6 is a right side view of the vacuum leak test device for weld joints of the present invention;
FIG. 7 is a longitudinal sectional view taken along line A-A of FIG. 2;
in the figure: 1. a sealing cover of the welding seam vacuum leakage testing device; 2. a skirt; 3. an annular seal ring; 4. a transparent viewing window; 5. a handle; 6. a strip-shaped electromagnet; 7. a side plate screw; 8. a through hole; 9. a tee joint; 10. a vacuum pressure gauge; 11. a short air exhaust pipe; 12. an intake valve; 13. a strip-shaped LED waterproof lamp strip; 14. an LED point light source; 15. a flexible circuit board; 16. a power supply box; 17. a storage battery; 18. a screw; 19. a bar-shaped electromagnet control knob; 20. the switch button is illuminated.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Wherein like reference numerals refer to like parts throughout.
In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1
As shown in figures 1-7, the utility model provides a welding seam vacuum leakage test device, including welding seam vacuum leakage test device sealed cowling 1, welding seam vacuum leakage test device sealed cowling 1 is provided with the rectangular cover body bottom and has skirt 2 around the opening edge, skirt 2 bottom is provided with ring type seal 3, a rectangle transparent observation window 4 and handle 5 are closely inlayed at welding seam vacuum leakage test device sealed cowling 1 top, handle 5 is located transparent observation window 4 both sides, welding seam vacuum leakage test device sealed cowling 1 long limit both sides outside still is provided with bar electro-magnet 6 respectively, and bar electro-magnet 6 installs in skirt 2 upper surface, device curb plate screw 7 is adjacently installed to one side of bar electro-magnet 6, welding seam vacuum leakage test device sealed cowling 1 interior long limit unilateral is equipped with through-hole 8, one side of through-hole 8 is provided with tee bend 9, the both sides of tee bend 9 respectively with vacuum pressure gauge 10, An air exhaust short pipe 11 and an air inlet valve 12, wherein a vacuum pressure gauge 10 is used for displaying vacuum pressure in a sealing cover 1 of the welding seam vacuum leakage testing device, the air exhaust short pipe 11 is connected with an air compressor or a vacuum pump and is used for generating vacuum negative pressure, the air inlet valve 12 is opened after observation is completed so that normal pressure in the sealing cover 1 of the welding seam vacuum leakage testing device is recovered, strip-shaped LED waterproof lamp strips 13 are further arranged on four sides of the inner side of the sealing cover 1 of the welding seam vacuum leakage testing device, a power box 16 is arranged on one side of the short side of the sealing cover 1 of the welding seam vacuum leakage testing device and is installed on the upper surface of a skirt base 2, a storage battery 17 and a circuit are arranged in the power box 16, strip-shaped electromagnet control knobs 19 and an illumination switch button 20 are respectively arranged on two sides of the power box 16, the electromagnet control knobs 19 achieve the purpose of controlling the, the illumination switch button 20 controls the on/off of the illumination line.
Furthermore, the sealing cover 1 of the welding seam vacuum leakage testing device is made of soft magnetic materials, and is large in magnetic conductivity, easy to magnetize and demagnetize, and convenient for magnetic conduction and movement and carrying of the device.
The material of the annular sealing ring 3 is preferably selected to be airtight sponge rubber, so that the forming efficiency of a vacuum environment is improved.
The bar-shaped electromagnet 6 is fixedly connected with the device side plate screw 7, and the storage battery 17 is respectively electrically connected with the bar-shaped electromagnet 6 and the bar-shaped LED waterproof lamp belt 13, so that the disassembly and maintenance are convenient.
The strip-shaped LED waterproof lamp strip 13 is close to the fixed position of the annular sealing ring 3, the strip-shaped LED waterproof lamp strip 13 is provided with an LED point light source 14 and a flexible circuit board 15, and the LED point light source 14 is pasted on the flexible circuit board 15.
The design of power supply box 16 is explosion-proof box, and the outside chamber door is connected by two screws 18 on upper portion, and power supply box 16 is preset through power supply box 16 both sides with bar electro-magnet 6 and is hidden the trompil and carry out the line connection, hides the trompil with bar LED waterproof lamp area 13 through the interior plate and carries out the line connection to the trompil position inboard all installs sealing rubber ring additional, and the accessible is dismantled screw 18 and is opened 16 chamber doors of power supply box, carries out battery 17 and changes and the line inspection.
The electromagnet control knob 19 can control the annular sealing ring 3 to be tightly attached to the steel plate, the tightness in the sealing cover 1 of the welding seam vacuum leakage testing device is improved, and in a detection environment with poor illumination conditions, an even light source can be set by opening the illumination switch button 20, so that the observation conditions are improved.
Specifically, in the using process, soapy water is coated on a welding line to be detected, the whole device is arranged at the welding line through a handle 5, an air compressor or a vacuum pump is connected with an air exhaust short pipe 11, an air inlet valve 12 is closed, so that an annular sealing ring 3 and a sealing cover 1 of a welding line vacuum leakage testing device are encircled to form a sealing area at the welding line, when the lighting condition is poor, a lighting switch button 20 is opened to start a strip-shaped LED waterproof lamp strip 13 in the sealing cover 1 of the welding line vacuum leakage testing device, the brightness of the observation area is improved, then gas in the sealing area is exhausted, whether the reading of a vacuum pressure gauge 10 can reach a required value is observed through a transparent observation window 4, if the pressure value cannot reach the standard due to the fact that the joint of the annular sealing ring 3 and a steel plate is not tight, an electromagnet control knob 19 is opened and rotated to, until the reading of the vacuum pressure gauge 10 reaches the required value, that is, the vacuum degree in the area meets the requirement, at this time, whether the welding seam leaks air or not can be observed through the transparent plate, after the observation is finished, the vacuumizing is stopped, the air inlet valve 12 is opened, so that the outside air enters the sealing cover 1 of the welding seam vacuum leakage test device and is balanced with the outside pressure, and if the lighting switch button 20 and the electromagnet control knob 19 are opened, the device can be closed, so that the device can be easily moved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A welding seam vacuum leakage test device comprises a welding seam vacuum leakage test device sealing cover (1) and is characterized in that the welding seam vacuum leakage test device sealing cover (1) is provided with a rectangular cover body, a skirt base (2) is arranged at the periphery of an opening at the bottom of the rectangular cover body, an annular sealing ring (3) is arranged at the bottom of the skirt base (2), a rectangular transparent observation window (4) and a handle (5) are tightly embedded at the top of the welding seam vacuum leakage test device sealing cover (1), the handle (5) is positioned at two sides of the transparent observation window (4), strip-shaped electromagnets (6) are respectively arranged at two outer sides of a long edge of the welding seam vacuum leakage test device sealing cover (1), the strip-shaped electromagnets (6) are arranged on the upper surface of the skirt base (2), side plate screws (7) are adjacently arranged at one side of the strip-shaped electromagnets (6), and a through hole (8) is arranged at one side of a long edge in the welding, one side of through-hole (8) is provided with tee bend (9), the both sides of tee bend (9) respectively with vacuum pressure gauge (10), bleed nozzle stub (11) and admission valve (12), and vacuum pressure gauge (10) are used for showing the interior vacuum pressure of welding seam vacuum leak test device sealed cowling (1), bleed nozzle stub (11) and air compressor or vacuum pump link to each other for produce vacuum negative pressure, admission valve (12) are opened after accomplishing the observation, make in the welding seam vacuum leak test device sealed cowling (1) resume ordinary pressure, the inboard four sides of welding seam vacuum leak test device sealed cowling (1) still are provided with bar LED waterproof lamp area (13), welding seam vacuum leak test device sealed cowling (1) minor face unilateral is provided with power supply box (16), and installs in apron seat (2) upper surface, battery (17) and circuit have been arranged in power supply box (16), power supply box (16) both sides are provided with bar electromagnet control knob (19) and lighting switch button respectively (20) The electromagnet control knob (19) controls the magnetic force between the strip-shaped electromagnet (6) and the steel plate through adjusting the current in the electromagnet circuit, so that the fitting degree of the annular sealing ring (3) is changed, and the lighting switch button (20) controls the on-off of the lighting circuit.
2. The weld vacuum leakage testing device according to claim 1, characterized in that the sealing cover (1) of the weld vacuum leakage testing device is made of soft magnetic material.
3. A weld vacuum leak test device according to claim 1, characterized in that the material of the annular sealing ring (3) is preferably selected from a gas-impermeable sponge rubber.
4. The welding seam vacuum leakage testing device according to claim 1, wherein the strip-shaped electromagnet (6) is fixedly connected with a device side plate screw (7), and the storage battery (17) is electrically connected with the strip-shaped electromagnet (6) and the strip-shaped LED waterproof lamp strip (13) respectively.
5. The welding seam vacuum leakage testing device according to claim 1, wherein the strip-shaped LED waterproof lamp strip (13) is close to the fixed position of the annular sealing ring (3), the strip-shaped LED waterproof lamp strip (13) is provided with an LED point light source (14) and a flexible circuit board (15), and the LED point light source (14) is pasted on the flexible circuit board (15).
6. The welding seam vacuum leakage testing device according to claim 1, characterized in that the power box (16) is designed as an explosion-proof box, the outer box door is connected by two screws (18) on the upper portion, the power box (16) and the strip-shaped electromagnet (6) are in circuit connection through preset hidden holes on two sides of the power box (16), and are in circuit connection with the strip-shaped LED waterproof lamp strip (13) through hidden holes on the inner side plate, sealing rubber rings are additionally arranged on the inner sides of the positions of the hidden holes, and the box door of the power box (16) can be opened by detaching the screws (18) to replace the storage battery (17) and check the circuit.
7. The welding seam vacuum leakage testing device according to claim 1, wherein the electromagnet control knob (19) can control the annular sealing ring (3) to be tightly attached to a steel plate, the tightness in the sealing cover (1) of the welding seam vacuum leakage testing device is improved, and a uniform light source can be set by turning on the lighting switch button (20) in a detection environment with poor lighting conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021514853.4U CN212721941U (en) | 2020-07-28 | 2020-07-28 | Welding seam vacuum leakage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021514853.4U CN212721941U (en) | 2020-07-28 | 2020-07-28 | Welding seam vacuum leakage testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212721941U true CN212721941U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021514853.4U Expired - Fee Related CN212721941U (en) | 2020-07-28 | 2020-07-28 | Welding seam vacuum leakage testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212721941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114371069A (en) * | 2021-12-16 | 2022-04-19 | 深圳市艾比森光电股份有限公司 | Welding strength testing device and welding strength testing method |
| CN114509223A (en) * | 2021-12-29 | 2022-05-17 | 海洋石油工程股份有限公司 | Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings |
-
2020
- 2020-07-28 CN CN202021514853.4U patent/CN212721941U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114371069A (en) * | 2021-12-16 | 2022-04-19 | 深圳市艾比森光电股份有限公司 | Welding strength testing device and welding strength testing method |
| CN114509223A (en) * | 2021-12-29 | 2022-05-17 | 海洋石油工程股份有限公司 | Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210316 Termination date: 20210728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |