CN210719586U - Air defense basement valve side leakage detection device - Google Patents
Air defense basement valve side leakage detection device Download PDFInfo
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- CN210719586U CN210719586U CN201921836994.5U CN201921836994U CN210719586U CN 210719586 U CN210719586 U CN 210719586U CN 201921836994 U CN201921836994 U CN 201921836994U CN 210719586 U CN210719586 U CN 210719586U
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 230000007123 defense Effects 0.000 title claims abstract description 26
- 210000003437 trachea Anatomy 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 20
- 238000010276 construction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses an air defense basement valve side leakage detection device, including airtight hyperbaric chamber, airtight hyperbaric chamber is top central opening, the sealed cylindrical tubular structure in bottom, is provided with air inlet and gas outlet on the circumference lateral wall of airtight hyperbaric chamber, be connected with the flowmeter through the trachea on the air inlet, the flowmeter passes through the trachea and links to each other with compressed air source, set up on the pipeline between flowmeter and the compressed air source and install the governing valve, be connected with the micromanometer through the trachea on the gas outlet, fixedly connected with is detected the piece on the up end of airtight hyperbaric chamber, it is linked together through top central opening and airtight hyperbaric chamber to be detected the piece, is kept sealed with the junction of airtight hyperbaric chamber by the detected piece. The utility model relates to a simple structure, convenient to use, the commonality is high, and detection efficiency is high air defense basement valve side leakage detection device.
Description
Technical Field
The utility model relates to a valve side leakage detects technical field, specifically is an air defense basement valve side leakage detection device.
Background
The civil air defense engineering protection equipment is a key configuration for realizing the civil air defense engineering wartime function and ensuring the life safety of personnel. The quality of the protection equipment and the construction process of the civil air defense construction, and the quality of completion acceptance play a key role in determining whether the whole civil air defense construction plays a due role in wartime, so that in order to ensure realization of the civil air defense construction wartime function in wartime and guarantee the life safety of personnel, the quality of the civil air defense equipment must be strictly controlled, and the relevant civil air defense equipment is ensured to meet the relevant technical requirements.
In 2000, national civil air defense has not completed relevant laws and regulations for technical monitoring and quality monitoring of civil air defense equipment and installation markets due to the fact that civil air defense equipment and installation markets are just opened. Therefore, many equipment manufacturers use a large-scale sealing performance detection platform of protective equipment (the platform mainly detects the sealing performance of various civil air-defense doors and blocking plates), although the platform can also detect the air leakage amount of the exhaust valve \ overpressure exhaust valve \ sealed valve, because the space between the sealing position of the civil air-defense equipment and the platform of the exhaust valve \ overpressure exhaust valve \ sealed valve is very small, the distance between the air inlet pipe and the pressure measuring pipe during pressure measurement is very close because of the small space, and because the space is small (the space is an overpressure chamber), the influence of air leakage on the pressure measuring pipe is very large, the reading of a barometer on the pressure measuring pipe is very unstable, the overpressure chamber (the air leakage amount is less than or equal to 0.001m3/h) cannot be ensured, and the air inflow control is very difficult to control to balance the air leakage amount when controlling the air inflow, therefore, it is very difficult for the flow meter to obtain very accurate data, and the operation is also very difficult to control, and moreover, because the space is too small, it is very difficult to ensure the pressure balance of the pressure on the sealing rubber strip of the exhaust valve \ overpressure exhaust valve \ closed valve, so that the detected data cannot truly reflect the actual air leakage of the equipment, and the quality of the equipment cannot be ensured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air defense basement valve side leakage detection device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an air defense basement valve side leakage detection device, includes airtight hyperbaric chamber, airtight hyperbaric chamber is top central opening, the sealed cylindrical tubular structure in bottom, is provided with air inlet and gas outlet on the circumference lateral wall of airtight hyperbaric chamber, be connected with the flowmeter through the trachea on the air inlet, the flowmeter passes through the trachea and links to each other with compressed air source, set up on the pipeline between flowmeter and the compressed air source and install the governing valve, be connected with the micromanometer through the trachea on the gas outlet, fixedly connected with is detected the piece on the up end of airtight hyperbaric chamber, it is linked together with airtight hyperbaric chamber through top central opening to be detected the piece, is kept sealed by the junction of detecting piece and airtight hyperbaric chamber.
The bottom of the detected piece is provided with an annular connecting seat, the side wall of the top of the closed overpressure chamber is provided with a plurality of groups of threaded holes distributed in an annular array, the connecting seat is fixedly connected to the closed overpressure chamber through screws, and the screws are in threaded connection in the threaded holes.
And a sealing gasket is arranged at the joint of the connecting seat and the closed overpressure chamber.
The tail end of the air pipe connected with the air outlet or the air inlet is integrally connected with a screwing head, the screwing head comprises a clamping head matched with a wrench and a connecting end matched with a threaded hole in a threaded mode, an internal thread is arranged on the inner surface of the circumference of the air outlet or the air inlet, and the connecting end is in threaded connection with the internal thread.
A limiting ring is arranged between the clamping head and the connecting end, a sealing ring is sleeved on the outer surface of the connecting end, and the sealing ring is arranged between the limiting ring and the outer side wall of the sealed overpressure chamber.
The volume of the closed overpressure chamber is more than twice of the volume of the detected piece. Preferably, the first and second liquid crystal materials are,
compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in, adopt new exhaust valve overpressure exhaust valve airtight valve side leakage device to solve the problem that original service platform exists to the work efficiency who detects has been improved. The utility model relates to a simple structure, convenient to use, the commonality is high, and detection efficiency is high air defense basement valve side leakage detection device.
Drawings
Fig. 1 is a schematic structural view of an air defense basement valve side leakage detection device;
fig. 2 is a partially enlarged view of fig. 1 at K.
In the figure: 1-sealed overpressure chamber, 2-detected piece, 3-threaded hole, 4-air outlet, 5-air inlet, 6-flowmeter, 7-regulating valve, 8-compressed air source, 9-air pipe, 10-micro-manometer, 11-screw head, 12-connecting end, 13-limiting ring, 14-clamping head, 15-internal thread, 16-sealing ring, 17-connecting seat and 18-screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
the utility model provides an air defense basement valve side leakage detection device, includes airtight hyperbaric chamber 1, airtight hyperbaric chamber 1 is top central opening, the sealed cylindrical tubular structure in bottom, is provided with air inlet 5 and gas outlet 4 on the circumference lateral wall of airtight hyperbaric chamber 1, be connected with flowmeter 6 through trachea 9 on the air inlet 5, flowmeter 6 links to each other with compressed air source 8 through trachea 9, set up on the pipeline between flowmeter 6 and the compressed air source 8 and install governing valve 7, be connected with micro-pressure meter 10 through trachea 9 on the gas outlet 4, fixedly connected with is detected on the up end of airtight hyperbaric chamber 1 and is linked together through top central opening and airtight hyperbaric chamber 1 by detection piece 2, is kept sealed by detection piece 2 and airtight hyperbaric chamber 1's junction.
When in use, the detected piece 2 is arranged on the sealed overpressure chamber 1. And secondly, slowly inflating the sealed overpressure chamber 1 by using an air compressor, observing the pressure value of the sealed overpressure chamber 1, and slowing the inflation speed when the required overpressure value delta P is approached to enable the pressure of the sealed overpressure chamber 1 to tend to a stable state. And thirdly, closing the regulating valve 7 and simultaneously opening the flow meter 6. And fourthly, adjusting the flowmeter 6 to keep the pressure value of the sealed overpressure chamber 1 near delta P and stabilize the back reading. And fifthly, closing the regulating valve 7 after data recording, and opening the sealed overpressure chamber 1. And sixthly, repeating the steps from 4.3.2 to 4.3.5 until 15 readings are completed. And seventhly, recording data.
Preferably, the bottom of the detected member 2 is provided with an annular connecting seat 17, the top side wall of the sealed overpressure chamber 1 is provided with a plurality of groups of threaded holes 3 distributed in an annular array, the connecting seat 17 is fixedly connected to the sealed overpressure chamber 1 through a screw 18, and the screw 18 is in threaded connection with the threaded holes 3.
The connecting seat 17 is fixedly connected to the closed overpressure chamber 1 through a screw 18, and assembly is rapid.
Preferably, a sealing gasket is arranged at the joint of the connecting seat 17 and the sealed overpressure chamber 1.
The gasket is used for improving the sealing performance during detection.
Preferably, a screw head 11 is integrally connected to the end of the air tube 9 connected to the air outlet 4 or the air inlet 5, the screw head 11 includes a chuck 14 engaged with a wrench and a connecting end 12 engaged with a threaded hole, an internal thread 15 is provided on the circumferential inner surface of the air outlet 4 or the air inlet 5, and the connecting end 12 is screwed in the internal thread 15.
The connecting end 12 is in threaded connection with the internal thread 15, so that the air pipe and the closed overpressure chamber 1 can be conveniently connected and detached.
Preferably, a limiting ring 13 is arranged between the clamping head 14 and the connecting end 12, a sealing ring 16 is sleeved on the outer surface of the connecting end 12, and the sealing ring 16 is arranged between the limiting ring 13 and the outer side wall of the sealed overpressure chamber 1.
The sealing ring 16 can improve the sealing performance of the joint of the air pipe 9 and the sealed overpressure chamber 1.
Preferably, the volume of the sealed overpressure chamber 1 is more than 30 times of the volume of the detected member 2.
The large volume of the closed overpressure chamber 1 can facilitate buffering, can be read quickly, and does not need a long time to wait for the flowmeter to be stable, so that the time required for inspection is saved.
The utility model discloses a theory of operation is: when in use, the detected piece 2 is arranged on the sealed overpressure chamber 1. And secondly, slowly inflating the sealed overpressure chamber 1 by using an air compressor, observing the pressure value of the sealed overpressure chamber 1, and slowing the inflation speed when the required overpressure value delta P is approached to enable the pressure of the sealed overpressure chamber 1 to tend to a stable state. And thirdly, closing the regulating valve 7 and simultaneously opening the flow meter 6. And fourthly, adjusting the flowmeter 6 to keep the pressure value of the sealed overpressure chamber 1 near delta P and stabilize the back reading. And fifthly, closing the regulating valve 7 after data recording, and opening the sealed overpressure chamber 1. And sixthly, repeating the steps from 4.3.2 to 4.3.5 until 15 readings are completed. And seventhly, recording data. The connecting seat 17 is fixedly connected to the closed overpressure chamber 1 through a screw 18, and assembly is rapid. The gasket is used for improving the sealing performance during detection. The connecting end 12 is in threaded connection with the internal thread 15, so that the air pipe and the closed overpressure chamber 1 can be conveniently connected and detached. The sealing ring 16 can improve the sealing performance of the joint of the air pipe 9 and the sealed overpressure chamber 1. The large volume of the closed overpressure chamber 1 can facilitate buffering, can be read quickly, and does not need a long time to wait for the flowmeter to be stable, so that the time required for inspection is saved.
Firstly, the space of a sealed overpressure chamber existing in an original platform detection exhaust valve/overpressure exhaust valve and a sealed valve is too small. After the new exhaust valve \ overpressure exhaust valve \ sealed valve side leakage device is adopted, the problem that the overpressure chamber is too small is solved because the sealed overpressure chamber is redesigned.
And secondly, the original platform detects the air leakage amount of the exhaust valve/overpressure exhaust valve and the sealed valve, and whether the air leakage amount of a sealed overpressure chamber of the detected equipment is less than or equal to 0.001m3/h meets the requirement or not needs to be detected before the original platform tests each time. After the new exhaust valve \ overpressure exhaust valve \ sealed valve side leakage device is adopted, the sealed overpressure chamber is redesigned and is independent, so that the leakage amount of the device can be confirmed at one time before the device is confirmed, the technical requirement that the leakage amount of the device reaches less than or equal to 0.001m3/h can be met through various methods, and the device does not need to be remeasured before being used every time.
And thirdly, the original platform detects the problem that the reading of the micro-pressure meter of the exhaust valve/overpressure exhaust valve/closed valve is unstable. After the new exhaust valve \ overpressure exhaust valve \ sealed valve side leakage device is adopted, the gas has a large space buffer in the sealed overpressure chamber, the pressure of the detected equipment and the pressure around the sealed overpressure chamber are balanced, the gas flow cannot directly impact the micro-pressure meter, the entering gas and the leakage gas reach balance, and the reading of the micro-pressure meter is very stable.
Fourthly, the original platform detects that the reading of the flowmeter of the exhaust valve \ the overpressure exhaust valve \ the closed valve is unstable. After the new exhaust valve \ overpressure exhaust valve \ sealed valve side leakage device is adopted, the gas has a large space buffer in the sealed overpressure chamber, the pressure of the detected equipment and the pressure around the sealed overpressure chamber are balanced, the entering gas and the leakage gas are balanced quickly, and the reading of the flowmeter can be stabilized through valve fine adjustment.
Fifthly, the problem that the pressure of the original platform detection exhaust valve \ overpressure exhaust valve and closed valve on the rubber strip of the detected equipment is unstable. After the new exhaust valve \ overpressure exhaust valve \ sealed valve side leakage device is adopted, the gas has a large space buffer in the sealed overpressure chamber, the pressure of the detected equipment and the pressure around the sealed overpressure chamber are balanced, and the reading of the flowmeter can really reflect the air leakage amount of the detected equipment.
Sixthly, the preparation time is too long before the original platform detects the exhaust valve \ overpressure exhaust valve \ closed valve. After the new exhaust valve \ overpressure exhaust valve \ sealed valve side leakage device is adopted, the condition that whether the air leakage amount of the sealed overpressure chamber reaches less than or equal to 0.001m3/h is not required to be checked again, so that the preparation time before detection can be shortened.
Seventhly, the detection time of the original platform detection exhaust valve/overpressure exhaust valve/closed valve is too long, after a new exhaust valve/overpressure exhaust valve/closed valve side leakage device is adopted, gas has large space buffering in a closed overpressure chamber, the pressure around the detected device and the closed overpressure chamber is balanced, the entering gas and the leakage gas reach balance quickly, the reading of the flowmeter can be stabilized through fine adjustment of the valve, the reading can be quickly read, the long time for waiting for the stability of the flowmeter is not needed, and the time required by detection is saved.
Eighthly, the original platform detects that the exhaust valve \ overpressure exhaust valve \ sealed valve needs too long time to replace valves of different specifications and models. After the new exhaust valve \ overpressure exhaust valve \ sealed valve side leakage device is adopted, the device to be tested can be directly fixed on the position correspondingly reserved in the sealed overpressure chamber by using the screw, then whether the connection position of the device to be tested and the sealed overpressure chamber leaks air or not is checked, the air leakage can be directly detected, and the original platform test product must detect whether the sealed overpressure chamber of the device to be tested reaches the requirement that the air leakage amount is less than or equal to 0.001m3/h or not again every time, so that the time and the labor are wasted.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an air defense basement valve side leakage detection device, includes airtight hyperbaric chamber (1), its characterized in that: airtight hyperbaric chamber (1) is top central opening, the sealed cylindrical tubular structure in bottom, is provided with air inlet (5) and gas outlet (4) on the circumference lateral wall of airtight hyperbaric chamber (1), be connected with flowmeter (6) through trachea (9) on air inlet (5), flowmeter (6) link to each other with compressed air source (8) through trachea (9), set up on the pipeline between flowmeter (6) and compressed air source (8) and install governing valve (7), be connected with micropressure meter (10) through trachea (9) on gas outlet (4), fixedly connected with on the up end of airtight hyperbaric chamber (1) is detected piece (2), it is linked together through top central opening and airtight hyperbaric chamber (1) to be detected piece (2), is detected the junction of piece (2) and airtight hyperbaric chamber (1) and keeps sealed.
2. The air defense basement valve side leakage detection device of claim 1, characterized in that: the bottom of the detected piece (2) is provided with a circular connecting seat (17), the side wall of the top of the closed overpressure chamber (1) is provided with a plurality of groups of threaded holes (3) distributed in an annular array, the connecting seat (17) is fixedly connected to the closed overpressure chamber (1) through screws (18), and the screws (18) are in threaded connection in the threaded holes (3).
3. The air defense basement valve side leakage detection device of claim 2, characterized in that: and a sealing gasket is arranged at the joint of the connecting seat (17) and the sealed overpressure chamber (1).
4. The air defense basement valve side leakage detection device of claim 1, characterized in that: the tail end of the air pipe (9) connected with the air outlet (4) or the air inlet (5) is integrally connected with a screwing head (11), the screwing head (11) comprises a clamping head (14) matched with a wrench and a connecting end (12) matched with a threaded hole in a threaded mode, an internal thread (15) is arranged on the inner surface of the circumference of the air outlet (4) or the air inlet (5), and the connecting end (12) is in threaded connection with the internal thread (15).
5. The air defense basement valve side leakage detection device of claim 4, characterized in that: be provided with spacing ring (13) between dop (14) and link (12), the cover is equipped with sealing ring (16) on link (12) surface, sealing ring (16) set up between spacing ring (13) and airtight hyperbaric chamber (1) lateral wall.
6. The air defense basement valve side leakage detection device of claim 1, characterized in that: the volume of the sealed overpressure chamber (1) is more than 30 times of the volume of the detected piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921836994.5U CN210719586U (en) | 2019-10-29 | 2019-10-29 | Air defense basement valve side leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921836994.5U CN210719586U (en) | 2019-10-29 | 2019-10-29 | Air defense basement valve side leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210719586U true CN210719586U (en) | 2020-06-09 |
Family
ID=70926889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921836994.5U Expired - Fee Related CN210719586U (en) | 2019-10-29 | 2019-10-29 | Air defense basement valve side leakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210719586U (en) |
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2019
- 2019-10-29 CN CN201921836994.5U patent/CN210719586U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 |