CN209910911U - Vacuum leakage testing device for welding seam - Google Patents

Vacuum leakage testing device for welding seam Download PDF

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Publication number
CN209910911U
CN209910911U CN201920435676.1U CN201920435676U CN209910911U CN 209910911 U CN209910911 U CN 209910911U CN 201920435676 U CN201920435676 U CN 201920435676U CN 209910911 U CN209910911 U CN 209910911U
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China
Prior art keywords
leakage testing
barrel body
controller
vacuum
welding seam
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CN201920435676.1U
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Chinese (zh)
Inventor
宋满堂
罗晓军
刘强
董洪军
王玉怀
田继平
贾继红
马靖芳
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

The utility model provides a welding seam vacuum leakage test device. The utility model discloses welding seam vacuum leak test device includes: the leakage testing barrel body and the sealing cover are arranged on a glass observation window at the top of the leakage testing barrel body, and a sealing ring is arranged at the bottom of the leakage testing barrel body; and the inner side wall of the leakage testing barrel body is provided with an illuminating device. The utility model discloses welding seam vacuum leak test device is through setting up lighting device in the leak test staving, inside illuminating the leak test staving, and the leak hunting personnel are observing the welding seam when having no bubble through the glass observation window, inside the observation leak test staving that can understand, and the quality and the accuracy of welding seam vacuum leak hunting are improved to the observation that significantly reduces is unclear to cause because of the glass reflection of light.

Description

Vacuum leakage testing device for welding seam
Technical Field
The utility model relates to a nondestructive test technical field especially relates to a welding seam vacuum leakage test device.
Background
Storage tanks are generally used for storing production raw materials or industrial products, and the working environment thereof is complicated and harsh, and is easily damaged by corrosion and the like. Among the components of the tank, the floor thereof is a relatively problematic place. And on the bottom plates, the weakest welding seam is the welding seam between the bottom plates. According to the stipulations in the vertical cylindrical steel welding storage tank construction specifications: "all welds should adopt the vacuum box method to carry out the tightness test, the test negative pressure value must not be less than 53kPa, no seepage is qualified".
The existing vacuum leak detection box is processed into a square ring by adopting a steel plate with the thickness of 6mm, a glass cover is arranged at the top of the square ring, and the glass cover is fixed on the square ring through screws; the bottom edge of the square ring is provided with sealing rubber. When detecting leakage, smearing soapy water on a welding seam, placing a leakage detection box on the welding seam to be detected, vacuumizing until the negative pressure required by a test is reached, irradiating a glass cover by using a flashlight, observing whether bubbles appear on the welding seam through the glass cover, and if the bubbles appear, indicating that the leakage exists on the welding seam.
However, because the flashlight irradiates the glass and reflects light, when the glass cover is used for observing whether bubbles exist, detection personnel can easily observe the glass cover to be unclear and detect the glass cover in a missing mode, and the quality hidden trouble is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a welding seam vacuum leakage test device to there is the reflection of light to solve current glass lid when shining with the flashlight, when leading to the measurement personnel to see through the glass lid and observe and have or not the bubble, observe easily that unclear and appear leaking and examine, cause the technical problem of quality hidden danger.
The utility model provides a welding seam vacuum leakage testing device, which comprises a leakage testing barrel body and a glass observation window with a sealing cover arranged at the top of the leakage testing barrel body, wherein the bottom of the leakage testing barrel body is provided with a sealing ring; and the inner side wall of the leakage testing barrel body is provided with an illuminating device.
The welding seam vacuum leakage testing device comprises an illuminating lamp, a remote controller, a controller in communication connection with the remote controller and a driving motor electrically connected with the controller, wherein an output shaft of the driving motor is fixedly connected with the illuminating lamp; the controller generates a rotation control signal to control the driving motor to operate according to the received rotation remote control signal sent by the remote controller, so that the illuminating lamp rotates by a preset angle.
The welding seam vacuum leakage testing device comprises an illuminating lamp, a controller and a controller, wherein the illuminating lamp comprises an LED lamp and a driving circuit electrically connected with the LED lamp; the controller generates a dimming control signal to control the driving circuit according to the received dimming remote control signal sent by the remote controller so as to adjust the brightness of the LED lamp.
The welding seam vacuum leakage testing device comprises a welding seam vacuum leakage testing device body, wherein the welding seam vacuum leakage testing device body comprises a driving motor, a controller and a lighting device, and the lighting device body is provided with a storage battery which is respectively and electrically connected with the driving motor, the controller and the driving circuit.
The welding seam vacuum leakage testing device comprises a welding seam vacuum leakage testing barrel body, wherein the welding seam vacuum leakage testing barrel body is provided with a controller, a driving motor and a storage battery, the controller is arranged in the welding seam vacuum leakage testing barrel body, the lighting device further comprises a mounting support fixedly connected with the inner side wall of the leakage testing barrel body and a shell fixedly connected with the mounting support, and the shell is provided with a containing space for containing the controller, the driving motor and the storage battery.
According to the welding seam vacuum leakage testing device, the outer side wall of the leakage testing barrel body is provided with the connecting support and the roller which is rotatably installed on the connecting support.
According to the welding seam vacuum leakage testing device, the outer side wall of the leakage testing barrel body is provided with the dragging handle.
The welding seam vacuum leakage testing device is characterized in that the glass observation window is adhered to the top of the leakage testing barrel body.
The welding seam vacuum leakage test device is characterized in that the sealing ring is a sealing sponge ring.
According to the welding seam vacuum leakage testing device, a vacuum meter and a three-way double-opening valve are further mounted on the side wall of the leakage testing barrel body.
The utility model discloses welding seam vacuum leak test device through set up lighting device in the leak test staving, illuminates inside the leak test staving, and the leak hunting personnel are observing the welding seam when having no bubble through the glass observation window, inside the observation leak test staving that can understand, and the quality and the accuracy of welding seam vacuum leak hunting are improved to the observation that significantly reduces is unclear to cause because of the glass reflection of light.
Drawings
The above and other objects, features and advantages of the embodiments of the present invention will become more readily understood from the following detailed description with reference to the accompanying drawings. Embodiments of the invention will be described, by way of example and not by way of limitation, in the accompanying drawings, in which:
FIG. 1 is a front view of a vacuum leak test device for a weld joint according to an embodiment of the present invention;
FIG. 2 is a top view of a vacuum leak test device for weld joints according to an embodiment of the present invention;
FIG. 3 is a left side view of a vacuum leak test device for a weld joint according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of an illumination device of the vacuum leak testing device for welding seams of the present invention;
FIG. 5 is a schematic structural view of another embodiment of the lighting device of the vacuum leak testing device for weld joints according to the present invention;
fig. 6 is a schematic structural view of another embodiment of the lighting device of the vacuum leak testing device for weld joints of the present invention.
Description of reference numerals:
1: a leakage testing barrel body;
2: a glass viewing window;
3: a seal ring;
4: an illumination device;
41: an illuminating lamp;
411: an LED lamp;
412: a drive circuit;
42: a remote controller;
43: a controller;
44: a drive motor;
45: a storage battery;
5: connecting a bracket;
51: a roller;
6: pulling the handle;
7: a vacuum gauge;
8: three-way double-opening valve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Example one
FIG. 1 is a front view of a vacuum leak test device for a weld joint according to an embodiment of the present invention; FIG. 2 is a top view of a vacuum leak test device for weld joints according to an embodiment of the present invention; fig. 3 is a left side view of the vacuum leak test device for weld joints according to the embodiment of the present invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a welding seam vacuum leakage test device, which includes: the leakage testing barrel body 1 and the glass observation window 2 with the sealing cover arranged at the top of the leakage testing barrel body 1, and the sealing ring 3 is arranged at the bottom of the leakage testing barrel body 1; the inside wall of the leakage testing barrel body 1 is provided with an illuminating device 4.
Specifically, leakage testing staving 1 can be rectangle leakage testing staving, and rectangle leakage testing staving includes first curb plate, second curb plate, third curb plate and fourth curb plate, and wherein, first curb plate and third curb plate are the same, and second curb plate and fourth curb plate are the same, and first curb plate, second curb plate, third curb plate and fourth curb plate fixed connection form rectangle leakage testing staving in proper order. And the length direction of the rectangular leakage testing barrel body is the length direction of the welding line, so that the longer welding line can be detected as far as possible by one-time vacuum pumping. Of course, the length of the rectangular leakage testing barrel body is not easy to be overlong, if the length of the rectangular leakage testing barrel body is overlong, vacuumizing time is overlong, and even the phenomenon of vacuumizing and air leakage can occur due to untight adhesion caused by deformation of the bottom plate around the welding line. Preferably, the length of the leakage testing barrel body 1 can be one meter. The length of leakage test staving 1 is suitable in order conveniently to detect local welding seam, the embodiment of the utility model provides a do not limit to this.
The leakage testing staving 1 can be the steel bucket, also can be other metal drums such as iron drum, the embodiment of the utility model provides a do not restrict to this. The leakage testing barrel body 1 can be a rectangular leakage testing barrel body, the cross section of the leakage testing barrel body 1 can also be trapezoidal, and the long edge of the trapezoid faces upwards. The embodiment of the utility model provides a do not restrict the shape of leakage test staving 1. The leakage testing staving 1 can be formed by the steel sheet welding, perhaps, adopts machining mode integrated into one piece, the embodiment of the utility model provides a do not restrict the processing mode of leakage testing staving 1. Preferably, the embodiment of the present invention uses C-shaped steel with δ ═ 1mm to make the box body.
The glass observation window 2 is hermetically connected with the top of the leakage testing barrel body 1, for example, a sealing ring is arranged between the glass observation window 2 and the leakage testing barrel body 1, and the glass observation window 2 is fixed on the top of the leakage testing barrel body 1 through a bolt; for another example, the glass observation window 2 is adhered to the top of the leakage testing barrel body 1, and the glass observation window 2 is adhered to the top of the leakage testing barrel body 1 through glass adhesion. The glass of the glass observation window 2 can be organic glass or toughened glass, and the embodiment of the utility model provides a do not limit to this. The shape of the glass porthole 2 is preferably rectangular.
Sealing washer 3 that 1 bottom of leakage testing staving set up can rubber seal, and sealing washer 3 also can be sealed sponge circle, the embodiment of the utility model provides a do not injectd to this. Preferably, sealing washer 3 is sealed sponge circle, in order to avoid heavily pressing down sealed sponge circle and can't use after the deformation and cause the material extravagant, should be provided with the one side of sealed sponge circle after leak hunting at every turn and place up.
The lighting device 4 is fixedly installed on the inner wall of the leakage testing barrel body 1, the lighting device 4 can be provided with a clamping interface, the clamping interface is connected to the inner wall of the leakage testing barrel body 1, the lighting device 4 can be further fixed on the inner wall of the leakage testing barrel body 1 through screws, and the fixing mode of the lighting device 4 is not limited. In the leak detection process, before vacuumizing, the lighting device 4 is firstly turned on, and after vacuumizing to a preset negative pressure, whether a leakage point exists in a welding line is observed; or, the lighting device 4 is provided with a remote controller, and after the vacuum pumping is carried out to the preset negative pressure, the lighting device 4 is turned on by the remote controller to clearly observe whether the leakage point exists in the welding seam.
The embodiment of the utility model provides a welding seam vacuum leak test device through set up lighting device in the leak test staving, illuminates inside the leak test staving, and the leak hunting personnel are observing the welding seam when having or not bubble through the glass observation window, and inside the observation leak test staving that can understand, the quality and the rate of accuracy that the quality and the accuracy of welding seam vacuum leak hunting were examined because of the glass reflection of light that significantly reduce are observed not clearly to cause are examined.
Fig. 4 is a schematic structural diagram of an embodiment of the lighting device of the vacuum leak testing device for welding seams of the present invention.
Referring to fig. 4, on the basis of the above embodiment, the lighting device 4 of the present embodiment includes an illumination lamp 41, a remote controller 42, a controller 43 connected to the remote controller 42 in a communication manner, and a driving motor 44 electrically connected to the controller 43, wherein an output shaft of the driving motor 44 is fixedly connected to the illumination lamp 41; the controller 43 generates a rotation control signal to control the driving motor 44 to operate according to the received rotation remote control signal transmitted from the remote controller 42, so as to rotate the illumination lamp 41 by a preset angle.
The weld is usually long, and accordingly, the leak testing barrel body 1 of the weld vacuum leak testing device has a certain length, and the lighting device 4 can rotate for clearly observing each position of the weld. Specifically, the lighting device 4 includes an illumination lamp 41, a remote controller 42, a controller 43, and a driving motor 44, wherein the remote controller 42 is connected to the controller 43 in communication, and the controller 43 is electrically connected to the driving motor 44. The communication mode between the remote controller 42 and the controller 43 may be infrared communication, WiFi, etc., and the embodiment of the present invention does not limit this. The remote controller 42 may be provided with a plurality of shift positions, such as first gear, second gear, third gear, etc., each of which is 30 degrees; alternatively, the remote control 42 may be infinitely adjustable, with two steps being added and subtracted, a step being pressed, a step being added or subtracted by one degree, etc. The embodiment of the utility model provides a do not limit to the concrete gear of remote controller 42, technical personnel in the field design according to actual operation.
When different positions of a welding seam need to be observed, a leak detector operates the remote controller 42, the remote controller 42 sends a rotation remote control signal to the controller 43, and the controller 43 sends a rotation control signal to the driving motor 44 after receiving the rotation remote control signal, so that the driving motor 44 drives the illuminating lamp 42 to rotate by a preset angle.
The embodiment of the utility model provides a welding seam vacuum leak test device, its lighting device can rotate and predetermine the angle to the different positions of observation welding seam that make the leak hunting personnel can understand further improve the quality of welding seam vacuum leak hunting.
Fig. 5 is a schematic structural view of another embodiment of the lighting device of the vacuum leak testing device for welding seams of the present invention.
Referring to fig. 5, the illumination lamp 41 of the illumination device 4 of the present embodiment includes an LED lamp 411 and a driving circuit 412 electrically connected to the LED lamp 411, and the driving circuit 412 is electrically connected to the controller 43; the controller 43 generates a dimming control signal to control the driving circuit 412 according to the received dimming remote control signal transmitted from the remote controller 42 to adjust the brightness of the LED lamp 411.
Specifically, the driving circuit 412 may include a PWM circuit, and the controller 43 controls the PWM circuit to perform dimming. Or, the dimming mode of light 41 can also be that the silicon controlled rectifier adjusts luminance, electrodeless adjust luminance etc. the embodiment of the utility model provides a do not restrict to this. The specific structure of the driving circuit 412 is designed according to the dimming mode, and the embodiment of the present invention does not limit this.
When the brightness of the LED lamp needs to be adjusted, the leak detector operates the remote controller 42, the remote controller 42 sends a dimming remote control signal to the controller 43, and the controller 43 receives the dimming remote control signal and then sends a dimming control signal to the driving circuit 412 to adjust the brightness of the LED 411. The remote controller 42 may be provided with a plurality of gears, such as first gear, second gear, third gear, etc., each corresponding to different brightness; alternatively, the remote control 42 may be infinitely adjustable, with two steps of up and down, pressing a step, increasing or decreasing a brightness, etc. The embodiment of the utility model provides a do not limit to the concrete gear of remote controller 42, technical personnel in the field design according to actual operation.
In the specific leak detection process, in order to clearly see whether each position of the welding line leaks, leak detection personnel can adjust the brightness of the LED lamp according to the specific environment during leak detection.
Fig. 6 is a schematic structural view of another embodiment of the lighting device of the vacuum leak testing device for weld joints of the present invention.
In some embodiments, the lighting device 4 is powered by a battery, and specifically, referring to fig. 6, the lighting device 4 further includes a storage battery 45, and the storage battery 45 is electrically connected to the driving motor 44, the controller 43, and the driving circuit 411, respectively. Wherein, battery 45 can be current battery, and the embodiment of the utility model discloses do not limit to this.
In other embodiments, the lighting device 4 may be connected to an external power source through a wire. Note that sealing should be noted when the lead passes through the sidewall of the leak testing barrel.
Further, the lighting device 4 further comprises a mounting bracket fixedly connected with the inner side wall of the leakage testing barrel body 1 and a shell fixedly connected with the mounting bracket, and the shell is provided with an accommodating space for accommodating the controller 43, the driving motor 44 and the storage battery 45.
The mounting bracket can be a connecting rod structure, one end of the mounting bracket is fixedly connected with the inner wall of the leakage testing barrel body 1, and the other end of the mounting bracket is fixedly connected with the shell. The embodiment of the utility model provides a do not restrict the concrete structure of installing support. The housing of the lighting device 4 may be square, circular, oval, etc., and the embodiment of the present invention does not limit this.
Referring to fig. 1 to 3, in order to facilitate movement, the outer sidewall of the leakage testing barrel body 1 is provided with a connection bracket 5 and a roller 51 rotatably mounted on the connection bracket 5.
Specifically, the connecting bracket 5 may include a first connecting rod, and a second connecting rod and a third connecting rod respectively disposed at two ends of the first connecting rod, and the second connecting rod and the third connecting rod are respectively perpendicular to the first connecting rod, and the second connecting rod and the third connecting rod are respectively fixedly connected to the leakage testing barrel 1. The first connecting rod, the second connecting rod and the third connecting rod form a U-shaped structure. The first connecting rod is a cylindrical rod, the roller 51 is rotatably installed on the first connecting rod, and two rollers 51 may be provided to increase stability in moving.
In order to conveniently drag the welding line vacuum leakage testing device, the outer side wall of the leakage testing barrel body 1 is provided with a dragging handle 6. The pulling handle 6 can be provided with one or two. For example, two pull handles 6 are respectively provided at both ends of the leak testing barrel body 1. The embodiment of the utility model provides a do not restrict to the concrete structure of dragging handle 6.
The embodiment of the utility model provides a welding seam vacuum leakage test device through gyro wheel and dilatory handle, has improved work efficiency, has reduced intensity of labour.
With continued reference to fig. 1 to 3, a vacuum meter 7 and a three-way double-opening valve 8 are further installed on the outer side wall of the leakage testing barrel body 1. Wherein, vacuum meter 7 is used for showing the negative pressure in the leakage test staving 1, and it can be current vacuum meter structure, the embodiment of the utility model provides a do not limit to this. The one end of the two open valves of tee bend 8 and leak test staving 1 intercommunication, one of them valve is used for connecting mechanical pump or molecular pump etc. carries out the evacuation to leak test staving 1, and wherein another valve is as unloading passageway, and after the leak test was accomplished, opens this valve and carries out the pressure release to carry out leak test on next step.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A weld vacuum leak test device, comprising: the leakage testing barrel body and the glass observation window with the sealing cover arranged at the top of the leakage testing barrel body, and the bottom of the leakage testing barrel body is provided with the sealing ring;
and the inner side wall of the leakage testing barrel body is provided with an illuminating device.
2. The weld vacuum leakage testing device according to claim 1, wherein the lighting device comprises a lighting lamp, a remote controller, a controller in communication connection with the remote controller, and a driving motor electrically connected with the controller, and an output shaft of the driving motor is fixedly connected with the lighting lamp;
the controller generates a rotation control signal to control the driving motor to operate according to the received rotation remote control signal sent by the remote controller, so that the illuminating lamp rotates by a preset angle.
3. The weld vacuum leakage testing device according to claim 2, wherein the illuminating lamp comprises an LED lamp and a driving circuit electrically connected with the LED lamp, and the driving circuit is electrically connected with the controller;
the controller generates a dimming control signal to control the driving circuit according to the received dimming remote control signal sent by the remote controller so as to adjust the brightness of the LED lamp.
4. The weld vacuum leakage testing device according to claim 3, wherein the lighting device further comprises a storage battery, and the storage battery is electrically connected with the driving motor, the controller and the driving circuit respectively.
5. The welding seam vacuum leakage testing device as claimed in claim 4, wherein the lighting device further comprises a mounting bracket fixedly connected with the inner side wall of the leakage testing barrel body and a housing fixedly connected with the mounting bracket, and the housing is provided with a containing space for containing the controller, the driving motor and the storage battery.
6. The weld vacuum leakage testing device according to any one of claims 1 to 5, wherein a connecting bracket and a roller rotatably mounted on the connecting bracket are arranged on the outer side wall of the leakage testing barrel body.
7. The weld vacuum leakage testing device according to any one of claims 1 to 5, wherein a pulling handle is arranged on the outer side wall of the leakage testing barrel body.
8. The weld vacuum leak testing device according to any one of claims 1 to 5, wherein the glass observation window is glued to the top of the leak testing barrel.
9. The weld vacuum leak test device according to any one of claims 1 to 5, wherein the sealing ring is a sealing sponge ring.
10. The weld vacuum leakage testing device according to any one of claims 1 to 5, wherein a vacuum meter and a three-way double-opening valve are further mounted on the side wall of the leakage testing barrel body.
CN201920435676.1U 2019-04-02 2019-04-02 Vacuum leakage testing device for welding seam Active CN209910911U (en)

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Application Number Priority Date Filing Date Title
CN201920435676.1U CN209910911U (en) 2019-04-02 2019-04-02 Vacuum leakage testing device for welding seam

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Application Number Priority Date Filing Date Title
CN201920435676.1U CN209910911U (en) 2019-04-02 2019-04-02 Vacuum leakage testing device for welding seam

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

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