CN216207314U - Tightness detection device of high-pressure vessel head - Google Patents
Tightness detection device of high-pressure vessel head Download PDFInfo
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- CN216207314U CN216207314U CN202122962734.6U CN202122962734U CN216207314U CN 216207314 U CN216207314 U CN 216207314U CN 202122962734 U CN202122962734 U CN 202122962734U CN 216207314 U CN216207314 U CN 216207314U
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Abstract
The utility model discloses a device for detecting the sealing performance of a high-pressure container end socket, which belongs to the technical field of end socket detection and specifically comprises a supporting base, a lifting frame, a clamping box, a water storage tank and a clamp, wherein a first hydraulic rod is arranged at the upper end of the clamping box, a sealing cover is arranged at the lower end of the first hydraulic rod, an air pipe is arranged on the sealing cover, a boss is arranged at the lower end of the sealing cover, a groove is arranged at the joint of the boss and the sealing cover, a sealing ring is arranged in the groove, and a gap is reserved between the inner side of the sealing ring and the surface of the groove; a through hole is formed from the upper end of the inner wall of the groove to the upper end of the sealing cover, and the opening end of the through hole is positioned at the upper end of the gap; a second air pipe is arranged in the through hole and connected with an external air cylinder. The utility model solves the problems that the sealing performance of the sealing cover and the end enclosure can not be ensured, the pressure in the sealing space can not meet the high pressure requirement in the inflating process, and the sealing performance detection result is influenced.
Description
Technical Field
The utility model belongs to the technical field of seal head detection, and particularly relates to a device for detecting the sealing property of a high-pressure container seal head.
Background
The end cap is an element for sealing the end of the container to isolate the internal and external media, and is also called an end cap. The closure head of a cylindrical container is generally a swivel housing. The seal head is an end cover on the pressure container, is a main pressure bearing part of the pressure container and plays a role in sealing, so the air tightness of the seal head needs to be detected before installation.
The applicant filed a utility model patent of "a seal head airtightness detection device" in 30/12/2020, publication (announcement) no: CN214334149U specifically discloses including supporting base, crane, centre gripping case, storage water tank and anchor clamps head leakproofness detection device, utilizes the sealed lid of centre gripping incasement to be connected with the head and forms sealed space and through the trachea toward inside add gas, puts into the storage water tank, if there is the bubble in the storage water tank to explain that the gas tightness is not good, otherwise explains that the gas tightness is good, whole testing process is simple and convenient, labour saving and time saving, anchor clamps that simultaneously can stretch out and draw back are applicable to the not head of equidimension, have improved the availability factor greatly.
However, the device has defects in the sealing performance test process of the high-pressure container end enclosure, the sealing performance of the sealing cover and the end enclosure of the device cannot be guaranteed, the pressure in the sealed space cannot meet the high-pressure requirement in the inflation process, and the sealing performance detection result is influenced.
SUMMERY OF THE UTILITY MODEL
The technical problems solved by the utility model are as follows: the original device has not enough in the leakproofness testing process of high pressure vessel head, and the leakproofness of sealed lid and head can not obtain guaranteeing, and the pressure in the gas filled in-process confined space can not reach the high pressure requirement, influences the leakproofness testing result.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a tightness detection device for a high-pressure container end socket comprises a support base, a lifting frame, a clamping box, a water storage box and a clamp, wherein the water storage box is arranged on the support base, the lifting frame is arranged on one side of the upper end of the support base, the clamping box is arranged on the lifting frame, a first hydraulic rod is arranged at the upper end of the clamping box, a sealing cover is arranged at the lower end of the first hydraulic rod, a first air pipe is arranged on the sealing cover, and the clamp is arranged inside the clamping box;
the lower end of the sealing cover is provided with a boss, a groove is formed at the joint of the boss and the sealing cover, a sealing ring is arranged in the groove, and a gap is reserved between the inner side of the sealing ring and the surface of the groove; a through hole is formed from the inner wall of the groove to the upper end of the sealing cover, and the opening end of the through hole is positioned at the upper end of the gap; a second air pipe is arranged in the through hole and connected with an external air cylinder.
Furthermore, a first air inlet electromagnetic valve is arranged on the first air pipe, and a second air inlet electromagnetic valve is arranged on the second air pipe.
Further, the sealing ring is a lip-shaped sealing ring, and an open groove of the lip-shaped sealing ring faces downwards.
Further, the number of the through holes and the second air pipes is at least 2.
Furthermore, pointer type pressure gauges are arranged on the first air pipe and the second air pipe.
Further, the length and the width of the clamping box are both smaller than those of the water storage tank.
Further, the water storage tank is made of transparent materials, a water inlet is formed in the upper end of the water storage tank, and a water outlet is formed in the lower end of the water storage tank.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
1. the sealing cover is innovatively improved on the original sealing performance detection device, the boss, the groove, the sealing ring and the second air pipe are arranged below the sealing cover, the boss is designed to realize quick installation of the sealing cover, then the second air pipe is used for inflating, and the sealing ring is pushed to move outwards by high-pressure gas to realize sealing between the sealing cover and the sealing cover. The sealing ring does not need to protrude outwards, the sealing head installation is not influenced, the installation is quick and convenient, the sealing ring is pressed by high-pressure gas to realize sealing, and the sealing effect of the sealing ring in the sealing head installation is not influenced.
2. The sealing washer selects current lip-shaped sealing washer, and its open slot is down, make full use of lip-shaped sealing washer's advantage, when the head carries out high-pressure leakproofness test, pressure is higher, and lip-shaped sealing washer's leakproofness is better, and has certain compensatory action, and the wearing and tearing of not fearing prolong whole detection device's life.
3. An air inlet electromagnetic valve and a pointer type pressure gauge are arranged on the two air pipes, so that the operation, observation and recording of pressure data are facilitated; the test is more scientific.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the assembly of the sealing cap and the closure head (before inflation sealing) of FIG. 1;
fig. 3 is a schematic view of the assembly structure of the sealing cover and the sealing head (after being sealed and filled with air) in fig. 1.
Detailed Description
The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in figure 1, the device for detecting the sealing performance of the end socket of the high-pressure container comprises a supporting base 1, a lifting frame 2, a clamping box 3, a water storage box 4 and a clamp 8, wherein the water storage box 4 is arranged on the supporting base 1, water is arranged in the water storage box 4 and is used for detecting the air tightness of the end socket, the lifting frame 2 is arranged on one side of the upper end of the supporting base 1 and is a conventional hydraulic lifting frame which is used for lifting the clamping box 3, during detection, the lifting frame 2 is used for placing the lower half part of the clamping box 3 into the water storage box 4, the clamping box 3 is arranged on the lifting frame 2, a first hydraulic rod 5 is arranged at the upper end of the clamping box 3, a sealing cover 6 is arranged at the lower end of the first hydraulic rod 5, the first hydraulic rod 5 is connected with an external cylinder, the first hydraulic rod 5 is used for lifting the sealing cover 6, when the clamp 8 clamps the end socket, the sealing cover 6 can be driven by the first hydraulic rod 5 to tightly cover on the end socket, and the sealing cover 6 is provided with the first air pipe 7, after the sealing cover 6 is changed, the lower half part of the clamping box 3 is placed into the water storage tank 4, then the first air pipe 7 inflates air between the sealing cover 6 and the end enclosure, if bubbles exist in the water storage tank 4, the airtightness is poor, otherwise, the airtightness is good, the whole detection process is simple and convenient, time and labor are saved, and the clamp 8 is arranged inside the clamping box 3.
As shown in fig. 2 and 3, a boss 9 is arranged at the lower end of the sealing cover 6, a groove 10 is arranged at the joint of the boss 9 and the sealing cover, a sealing ring is arranged in the groove 10, and a gap 12 is reserved between the inner side of the sealing ring and the surface of the groove 10. A through hole is arranged from the inner wall of the groove 10 to the upper end of the sealing cover 6, and the opening end of the through hole is positioned at the upper end of the gap 12. A second air pipe 13 is arranged in the through hole, and the second air pipe 13 is connected with an external air cylinder. The first air pipe 7 is provided with a first air inlet electromagnetic valve 14, and the second air pipe 13 is provided with a second air inlet electromagnetic valve 15.
The sealing ring is a lip-shaped sealing ring 11, and an open slot of the lip-shaped sealing ring 11 faces downwards.
The boss 9 of the lower end of the sealing cover 6 extends into the sealing head, the inner wall of the opening of the sealing head is in contact with the outer wall of the boss 9, at the moment, the air pipe II 13 is inflated through the air cylinder, and the lip-shaped sealing ring 11 integrally moves outwards to realize sealing under the action of pressure. And then the first air pipe 7 inflates air between the sealing cover 6 and the end enclosure, the inside air pressure is higher, the opening groove of the lip-shaped sealing ring 11 is pressed to expand outwards, the tongue jaw parts at the two ends are outwards attached to the end enclosure and inwards inflated to generate high-pressure air interaction with the second air pipe 13, and sealing with the boss 9 is realized. Therefore, the higher the air pressure in the seal head and the seal cover 6 is, the more closely the tongue jaws at the two ends of the lip-shaped seal ring 11 are attached, the better the sealing effect in a high-pressure state is ensured, the lip-shaped seal ring 11 is not afraid of abrasion, and the tongue jaws at the two ends have certain compensation function. Therefore, the application can ensure the sealing performance between the sealing cover 6 and the sealing head, and can carry out high-pressure sealing detection tests.
The quantity of through-hole and two 13 trachea in this application is 2 at least, but quick inflation realizes lip seal 11's quick seal, and two 13 trachea can insert an outside cylinder with trachea 7 together, guarantee that the air pressure is balanced in 12 interior gas pressures in the space and the head.
After the sealing performance detection test is finished, high-pressure gas in the gap 12 and in the seal head is pumped out by starting the two air inlet electromagnetic valves by using the external air cylinder, after the pressure is stable, the air inlet electromagnetic valve I14 on the air pipe I7 is closed, the air inlet electromagnetic valve II 15 is not closed, the air pipe II 13 continues to be pumped out to enable negative pressure to be formed in the gap 12, the lip-shaped sealing ring 11 is withdrawn into the groove 10 under the negative pressure, and the seal head can be detached.
Pointer type pressure gauges 16 are arranged on the first air pipe and the second air pipe 13, and therefore the test air pressure can be observed and recorded conveniently.
The length and the width of the clamping box 3 are both smaller than those of the water storage tank 4, so that the lower end of the clamping box 3 can be driven by the seal head to smoothly enter the water storage tank 4.
The water storage tank 4 is made of transparent materials, so that a user can observe bubbles in the water storage tank 4 conveniently, the upper end of the water storage tank 4 is provided with a water inlet, the lower end of the water storage tank 4 is provided with a water outlet, water inlet and water outlet are facilitated, and the water inlet and the water outlet are both provided with valves and are convenient to control.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a leakproofness detection device of high pressure vessel head which characterized in that: the water storage and water treatment device comprises a supporting base (1), a lifting frame (2), a clamping box (3), a water storage box (4) and a clamp (8), wherein the water storage box (4) is arranged on the supporting base (1), the lifting frame (2) is arranged on one side of the upper end of the supporting base (1), the clamping box (3) is arranged on the lifting frame (2), a first hydraulic rod (5) is arranged at the upper end of the clamping box (3), a sealing cover (6) is arranged at the lower end of the first hydraulic rod (5), a first air pipe (7) is arranged on the sealing cover (6), and the clamp (8) is arranged inside the clamping box (3);
a boss (9) is arranged at the lower end of the sealing cover (6), a groove (10) is arranged at the joint of the boss (9) and the sealing cover (6), a sealing ring is arranged in the groove (10), and a gap (12) is reserved between the inner side of the sealing ring and the surface of the groove (10); a through hole is formed from the inner wall of the groove (10) to the upper end of the sealing cover (6), and the opening end of the through hole is positioned at the upper end of the gap (12); a second air pipe (13) is arranged in the through hole, and the second air pipe (13) is connected with an external air cylinder.
2. The device for detecting the sealing performance of the sealing head of the high-pressure container according to claim 1, wherein: and a first air inlet electromagnetic valve (14) is arranged on the first air pipe (7), and a second air inlet electromagnetic valve (15) is arranged on the second air pipe (13).
3. The device for detecting the sealing performance of the sealing head of the high-pressure container according to claim 1, wherein: the sealing ring is a lip-shaped sealing ring (11), and an open groove of the lip-shaped sealing ring (11) faces downwards.
4. The device for detecting the sealing performance of the sealing head of the high-pressure container according to claim 1, wherein: the number of the through holes and the second air pipes (13) is at least 2.
5. The device for detecting the sealing performance of the sealing head of the high-pressure container according to claim 2, wherein: pointer type pressure gauges (16) are arranged on the first air pipe and the second air pipe (13).
6. The device for detecting the sealing performance of the sealing head of the high-pressure container according to claim 1, wherein: the length and the width of the clamping box (3) are both smaller than those of the water storage tank (4).
7. The device for detecting the sealing performance of the sealing head of the high-pressure container according to claim 1, wherein: the water storage tank (4) is made of transparent materials, a water inlet is formed in the upper end of the water storage tank (4), and a water outlet is formed in the lower end of the water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962734.6U CN216207314U (en) | 2021-11-29 | 2021-11-29 | Tightness detection device of high-pressure vessel head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962734.6U CN216207314U (en) | 2021-11-29 | 2021-11-29 | Tightness detection device of high-pressure vessel head |
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| CN216207314U true CN216207314U (en) | 2022-04-05 |
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| CN202122962734.6U Active CN216207314U (en) | 2021-11-29 | 2021-11-29 | Tightness detection device of high-pressure vessel head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010262B (en) * | 2024-04-09 | 2024-06-07 | 太原理工大学 | IV type hydrogen storage container liner multistage pressure hydrogen permeation testing device and method |
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2021
- 2021-11-29 CN CN202122962734.6U patent/CN216207314U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010262B (en) * | 2024-04-09 | 2024-06-07 | 太原理工大学 | IV type hydrogen storage container liner multistage pressure hydrogen permeation testing device and method |
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