CN213336678U - Defoaming tank bottom valve sealing performance detection device for polyimide film production - Google Patents
Defoaming tank bottom valve sealing performance detection device for polyimide film production Download PDFInfo
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- CN213336678U CN213336678U CN202021668136.7U CN202021668136U CN213336678U CN 213336678 U CN213336678 U CN 213336678U CN 202021668136 U CN202021668136 U CN 202021668136U CN 213336678 U CN213336678 U CN 213336678U
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- pressure gauge
- defoaming tank
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Abstract
The utility model provides a production of polyimide film is with defoaming tank bottoms valve leakproofness detection device, include: the frame, detect the barrel, the gulp valve, first connecting pipe and malleation manometer, it installs in the frame to detect the barrel, it is hollow structure to detect the barrel inside, first through-hole and second through-hole have been seted up at detection barrel top, the second through-hole is connected with the second connecting pipe, be equipped with discharge valve on the second connecting pipe, it is equipped with the flange mouth that is used for connecting the defoaming tank bottom valve that awaits measuring and detects the barrel inside to detect barrel bottom, first through-hole and gulp valve pass through first connecting pipe and connect, first connecting pipe and malleation manometer pass through the pipe connection, be equipped with the malleation manometer ball valve on the pipeline between first connecting pipe and. The utility model discloses whether can be quick accurate detection defoaming tank bottoms valve leak, it is simple effective, reducible leak hunting required time on the defoaming jar.
Description
Technical Field
The utility model relates to a polyimide film production facility technical field, concretely relates to production of polyimide film is with defoaming tank bottoms valve leakproofness detection device.
Background
In the production process of the polyimide film, the bottom valve of the defoaming tank is used for sealing and controlling the conveying pipeline of each defoaming tank. After polyimide film synthesis at intervals, need dismantle the sanitization to defoaming tank bottom valve, but install the back once more, because factor influences such as installation and gasket damage, probably cause defoaming tank bottom valve to have the gas leakage phenomenon, and then lead to the bubble in the defoaming in-process resin not to accomplish and eliminate, influence the film and take shape, lead to the film to appear scrapping.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the background art exists, the utility model provides a production of polyimide film is with defoaming tank bottoms valve leakproofness detection device.
The utility model provides a pair of production of polyimide film is with defoaming tank bottoms valve leakproofness detection device, include: the device comprises a frame, a detection cylinder, an air compensating valve, a first connecting pipe and a positive pressure gauge;
the detection barrel is arranged on the rack, the interior of the detection barrel is of a hollow structure, a first through hole and a second through hole are formed in the top of the detection barrel, the second through hole is connected with a second connecting pipe, an exhaust valve is arranged on the second connecting pipe, and a flange opening for connecting a defoaming tank bottom valve to be detected and the interior of the detection barrel is formed in the bottom of the detection barrel;
the first through hole is connected with the air compensating valve through a first connecting pipe, the first connecting pipe is connected with the positive pressure gauge through a pipeline, and a positive pressure gauge ball valve is arranged on a pipeline between the first connecting pipe and the positive pressure gauge.
Preferably, the device also comprises three through holes, a water replenishing valve and a negative pressure gauge;
the three-way pipe comprises a first joint, a second joint and a third joint, the first joint is connected with the first through hole, the water replenishing valve is installed on the second joint, the third joint is connected with the air replenishing valve through the first connecting pipe, the first connecting pipe is connected with the negative pressure gauge through a pipeline, a negative pressure gauge vacuum ball valve is arranged on the pipeline between the first connecting pipe and the negative pressure gauge, and the top of the detection cylinder body is provided with a third through hole filled with toughened glass.
Preferably, the vacuum extractor is used for extracting vacuum, and the vacuum extractor is used for being connected with the second connecting pipe.
The utility model provides a pair of defoaming tank bottoms valve leakproofness detection device is used in polyimide film production, whether can be quick accurate detection defoaming tank bottoms valve leak, simple effective, reducible required time of leaking hunting on the defoaming jar.
Drawings
Figure 1 is the utility model provides a production of polyimide film is with defoaming tank bottoms valve leakproofness detection device's schematic structure.
Detailed Description
Referring to fig. 1, the utility model provides a production of polyimide film is with defoaming tank bottoms valve leakproofness detection device, include: the device comprises a frame, a detection cylinder 1, an air compensating valve 8, a first connecting pipe and a positive pressure gauge 6;
the detection barrel body 1 is arranged on the rack, the interior of the detection barrel body 1 is of a hollow structure, a first through hole and a second through hole are formed in the top of the detection barrel body 1, the second through hole is connected with a second connecting pipe, an exhaust valve 2 is arranged on the second connecting pipe, and a flange opening 11 used for connecting a bottom valve of a defoaming tank to be detected and the interior of the detection barrel body 1 is formed in the bottom of the detection barrel body 1;
the first through hole is connected with the air compensating valve 8 through a first connecting pipe, the first connecting pipe is connected with the positive pressure gauge 6 through a pipeline, and a positive pressure gauge ball valve 7 is arranged on the pipeline between the first connecting pipe and the positive pressure gauge 6.
The utility model discloses during the use, will await measuring defoaming tank bottoms valve and flange mouth 11 connection earlier, close discharge valve 2 again, open malleation manometer ball valve 7 and gulp valve 8, to letting in clear compressed air in detecting barrel 1, and adjust compressed air pressure to the certain degree, observe the pressure variation in detecting barrel 1 through malleation manometer 6, if 30min does not have pressure variation, explain defoaming tank bottoms valve is sealed good, if 30min pressure variation, dismantle installation defoaming tank bottoms valve again, test again. The utility model discloses whether can be quick accurate detection defoaming tank bottoms valve leak, it is simple effective, reducible leak hunting required time on the defoaming jar.
In order to further improve the accuracy of the sealing detection, in the embodiment, the device further comprises three through holes, a water replenishing valve 3 and a negative pressure gauge 4;
the three-way pipe comprises a first joint, a second joint and a third joint of a branch pipe, the first joint is connected with the first through hole, the water replenishing valve 3 is installed on the second joint, the third joint is connected with the air replenishing valve 8 through the first connecting pipe, the first connecting pipe is connected with the negative pressure gauge 4 through a pipeline, a negative pressure gauge vacuum ball valve 5 is arranged on the pipeline between the first connecting pipe and the negative pressure gauge 4, and the top of the detection cylinder body 1 is provided with a third through hole 12 filled with toughened glass.
When the pressure of the positive pressure gauge 6 is unchanged for 30min, the sealing performance of the bottom valve of the defoaming tank is good, negative pressure detection is further carried out, namely, a ball valve 7 of the positive pressure gauge and a gas supplementing valve 8 are closed, an exhaust valve 2 is opened, compressed air of the detection cylinder body 1 is exhausted, then the ball valve of the negative pressure gauge and a water supplementing valve 3 are opened, a certain amount of purified water is supplemented into the detection cylinder body 1, the water supplementing valve 3 is closed after water supplementation is finished, then a negative pressure generator is connected with a second connecting pipe, the detection cylinder body 1 is vacuumized by the operation of the negative pressure generator, and the vacuumized detection cylinder body 1 is pumped to a certain degree, such as-0.; whether the defoaming tank bottom valve leaks is observed through the third through hole 12, whether continuous bubbles exist is observed through the third through hole 12, the gas leakage of the defoaming tank bottom valve can be judged after the continuous bubbles exist, and the good sealing performance of the defoaming tank bottom valve can be judged if the continuous bubbles do not exist.
Therefore, the utility model discloses can accurately detect the leakproofness of defoaming tank bottom valve, test through clean water moreover, need not to use the DMAC solvent to test in the defoaming jar, reduce the required time of leaking hunting on the defoaming jar to the DMAC solvent has been practiced thrift.
In this embodiment, the vacuum extractor is further included for extracting vacuum, and the vacuum extractor is used for connecting with the second connecting pipe.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a polyimide film production is with defoaming tank bottom valve leakproofness detection device which characterized in that includes: the device comprises a frame, a detection cylinder (1), an air compensating valve (8), a first connecting pipe and a positive pressure gauge (6);
the detection barrel body (1) is installed on the rack, the interior of the detection barrel body (1) is of a hollow structure, a first through hole and a second through hole are formed in the top of the detection barrel body (1), the second through hole is connected with a second connecting pipe, an exhaust valve (2) is arranged on the second connecting pipe, and a flange opening (11) used for connecting a defoaming tank bottom valve to be detected and the interior of the detection barrel body (1) is formed in the bottom of the detection barrel body (1);
the first through hole is connected with the air compensating valve (8) through a first connecting pipe, the first connecting pipe is connected with the positive pressure gauge (6) through a pipeline, and a positive pressure gauge ball valve (7) is arranged on the pipeline between the first connecting pipe and the positive pressure gauge (6).
2. The defoaming tank bottom valve tightness detection device for polyimide film production according to claim 1, further comprising three through holes, a water replenishing valve (3) and a negative pressure gauge (4);
the three-way pipe comprises a first joint and a second joint of a straight-through pipe and a third joint of a branch pipe, the first joint is connected with a first through hole, a water replenishing valve (3) is installed on the second joint, the third joint is connected with a gas replenishing valve (8) through a first connecting pipe, the first connecting pipe is connected with a negative pressure gauge (4) through a pipeline, a negative pressure gauge vacuum ball valve (5) is arranged on the pipeline between the first connecting pipe and the negative pressure gauge (4), and a third through hole (12) filled with toughened glass is formed in the top of the detection barrel body (1).
3. The device for detecting the sealing performance of the bottom valve of the defoaming tank for the polyimide film production as claimed in claim 2, further comprising a vacuum extractor for vacuum extraction, wherein the vacuum extractor is connected with the second connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021668136.7U CN213336678U (en) | 2020-08-12 | 2020-08-12 | Defoaming tank bottom valve sealing performance detection device for polyimide film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021668136.7U CN213336678U (en) | 2020-08-12 | 2020-08-12 | Defoaming tank bottom valve sealing performance detection device for polyimide film production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213336678U true CN213336678U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021668136.7U Active CN213336678U (en) | 2020-08-12 | 2020-08-12 | Defoaming tank bottom valve sealing performance detection device for polyimide film production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213336678U (en) |
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2020
- 2020-08-12 CN CN202021668136.7U patent/CN213336678U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230000 No.1000 Mingchuan Road, hi tech Zone, Hefei City, Anhui Province Patentee after: Anhui Guofeng New Material Co.,Ltd. Address before: 230000 No.1000 Mingchuan Road, hi tech Zone, Hefei City, Anhui Province Patentee before: ANHUI GUOFENG PLASTIC CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |