CN220525250U - High-pressure air tightness test equipment - Google Patents
High-pressure air tightness test equipment Download PDFInfo
- Publication number
- CN220525250U CN220525250U CN202321945317.3U CN202321945317U CN220525250U CN 220525250 U CN220525250 U CN 220525250U CN 202321945317 U CN202321945317 U CN 202321945317U CN 220525250 U CN220525250 U CN 220525250U
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- Prior art keywords
- pressure
- valve
- interface
- ball valve
- filter
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 39
- 239000001257 hydrogen Substances 0.000 claims abstract description 33
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 33
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000001307 helium Substances 0.000 claims abstract description 9
- 229910052734 helium Inorganic materials 0.000 claims abstract description 9
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000005984 hydrogenation reaction Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a high-pressure airtight test equipment, including drive gas interface, hydrogen interface, helium interface, drive gas interface connects first filter in proper order, the relief valve, first ball valve, the gas booster, first manometer, pneumatic switch, the gas booster, the second ball valve is connected in proper order to the hydrogen interface, the helium interface is connected to the third ball valve, the second manometer is connected to the second filter, the fifth ball valve, the hydrogen input interface, the second check valve is connected in proper order to the hydrogen output interface, the buffer tube, the relief valve input, first check valve, the fifth ball valve, the relief valve relief port is connected to the relief valve output, the safety relief end of gas booster is connected to the third check valve. The pressure difference of the two pressure values is compared, and the analysis and calculation of the pressure data are carried out through the intelligent detection system of the airtight testing machine so as to judge whether the product has leakage or not. By comparing the two pressure values, the differential pressure value represents the pressure drop value of the product, and the system automatically judges.
Description
Technical Field
The utility model relates to gas testing equipment, in particular to high-pressure gas tightness testing equipment which compares pressure differences of two pressure values and judges whether a product has leakage or not by analyzing and calculating an intelligent leakage detecting system of a gas tightness testing machine.
Background
The existing high-pressure airtight test equipment only visually looks at the readings of the tested instruments and meters by eyes to judge whether leakage exists, and if the leakage exists in a trace amount, the leakage needs a long time to be observed, so that the time is delayed, and more importantly, the potential safety hazard can be caused.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides high-pressure air tightness testing equipment for comparing pressure differences of two pressure values, and judging whether a product has leakage or not by analyzing and calculating an intelligent leakage detecting system of an air tightness testing machine.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a high-pressure airtight test equipment, including the drive gas interface, the hydrogen interface, the helium interface, drive gas interface connection first filter one end, the relief valve left end is connected to the first filter other end, first ball valve one end is connected to the relief valve right-hand member, the drive gas input interface of gas booster is connected to the first ball valve other end, first manometer and pneumatic switch upper end are connected to the relief valve lower extreme, the drive gas output interface of gas booster is connected to pneumatic switch lower extreme, hydrogen interface connection second ball valve one end, second ball valve other end is connected second filter one end and third ball valve other end, the helium interface is connected to third ball valve one end, second manometer and fifth ball valve one end and the hydrogen input interface of gas booster are connected to the second ball valve other end, second check valve output end is connected buffer tube one end and relief valve input end and first check valve output end, the fifth ball valve other end is connected to the relief valve output end, third check valve output end is connected to the third check valve output end and relief valve mouth, the third check valve input end is connected to the safety buffer tube other end, the fourth ball valve output end is connected to the fourth ball valve output end, the fourth ball valve output end is connected to the fourth ball valve output end.
The high-pressure air tightness testing device has the beneficial effects that the pressure difference of two pressure values is compared, and whether the product has leakage is judged by analyzing and calculating the pressure data of the intelligent detection system of the air tightness testing machine. If no leakage phenomenon exists, the pressure is in the normal range, the pressure sensor of the air tightness testing machine records the current pressure value, after a period of detection, the real-time pressure value is recorded, the differential pressure value is obtained through comparison of the two pressure values to represent the pressure drop value of the product, when the pressure drop value is within the standard leakage value, the product is represented to be free of leakage, when the pressure drop value is higher than the standard leakage value, the product is represented to be leaked, and the system is judged to be unqualified. Therefore, high-pressure airtight test can be rapidly and accurately performed, and no potential safety hazard is ensured.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a structural diagram of a first embodiment of the present utility model.
In the figure: 1. the device comprises a gas booster, a first filter, a pressure reducing valve, a first pressure gauge, a first ball valve, a second ball valve, a third ball valve, a second filter, a second pressure gauge, a first check valve, a buffer tube, a third filter, a fourth ball valve, a needle valve and a third pressure gauge, wherein the first check valve, the buffer tube, the third filter, the fourth ball valve, the needle valve and the third pressure gauge are respectively arranged in sequence in the cylinder, 16, pneumatic switch, 17, third one-way valve, 18, digital display device, 19, fifth ball valve, 20, second one-way valve, 21, drive gas interface, 22, hydrogen interface, 23, helium interface, 24, inflation tube interface, 25, deflation tube interface, 26, pressure checking opening, 27, relief valve opening, 28, hydrogenation gun interface, 29, relief valve.
Detailed Description
In the embodiment shown in fig. 1, a gas booster (1), a first filter (2), a pressure reducing valve (3), a first pressure gauge (4), a first ball valve (5), a second ball valve (6), a third ball valve (7), a second filter (2), a second pressure gauge (9), a first check valve (10), a buffer tube (11), a third filter (12), a fourth ball valve (13), a needle valve (14), a third pressure gauge (15), a pneumatic switch (16), a third check valve (17), a digital display device (18), a fifth ball valve (19), a second check valve (20), a driving gas interface (21), a hydrogen interface (22), a helium interface (23), an inflation tube interface (24), a deflation tube interface (25), a pressure checking opening (26), a safety valve pressure releasing opening (27), a hydrogenation gun interface (28) and a safety valve (29) are provided.
The high-pressure air tightness test equipment comprises a driving air interface (21), a hydrogen interface (22) and a helium interface (23), and is characterized in that the driving air interface (21) is connected with one end of a first filter (2), the other end of the first filter (2) is connected with the left end of a pressure reducing valve (3), the right end of the pressure reducing valve (3) is connected with one end of a first ball valve (5), the other end of the first ball valve (5) is connected with a driving air input interface of a gas booster (1), the lower end of the pressure reducing valve (3) is connected with the upper end of a first pressure gauge (4) and a pneumatic switch (16), the lower end of the pneumatic switch (16) is connected with a driving air output interface of the gas booster (1), the hydrogen interface (22) is connected with one end of a second ball valve (6), the other end of the second ball valve (6) is connected with one end of a second filter (8) and the other end of a third ball valve (7), one end of the third ball valve (7) is connected with the helium interface (23), the other end of the second filter (8) is connected with one end of the second pressure gauge (9) and the fifth ball valve (19) and one end of the gas booster (1), the lower end of the pneumatic switch (1) is connected with the output end of the first buffer (1) and one-way valve (20) is connected with the output end of the first buffer tube (20), the input end of the first one-way valve (10) is connected with the other end of the fifth ball valve (19), the output end of the safety valve (29) is connected with the output end of the third one-way valve (17) and the pressure relief opening (27) of the safety valve, the input end of the third one-way valve (17) is connected with the safety pressure relief end of the gas booster (1), the other end of the buffer tube (11) is connected with one end of the third filter (12), the other end of the third filter (12) is connected with one end of the fourth ball valve (13), the other end of the fourth ball valve (13) is connected with one end of the third pressure gauge (15) and the needle valve (14) and the right end of the pneumatic switch (16) and the inflation tube interface (24), and the other end of the needle valve (14) is connected with the deflation tube interface (25) and the pressure detection opening (26).
According to the high-pressure air tightness testing device, the first pressure gauge (4), the second pressure gauge (9) and the third pressure gauge (15) are electrically connected with the digital display device (18).
According to the high-pressure air tightness testing device, an inflation tube interface (24) and a deflation tube interface (25) are arranged on a hydrogenation gun interface (28).
According to the high-pressure air tightness testing device, the connection among the air booster (1), the first filter (2), the pressure reducing valve (3), the first ball valve (5) and the driving air interface (21) is connected by copper pipes.
According to the high-pressure air tightness testing device, the pressure reducing valve (3), the pneumatic switch (16) and the air booster (1) are connected through the air hose.
The high-pressure air tightness testing device is suitable for hydrogen energy hydrogenation stations, gas vehicle pipelines, hydrogen energy parts, rubber pipes, valves, joints and other areas needing pressure testing, and the high testing pressure can reach 150MPa. In the field of hydrogen energy application, the utility model provides a hydrogen compression solution, a hydrogen industry pressure test scheme and a high-pressure element for the hydrogen energy industry. The hydrogen compression solution matching equipment is provided with a movable hydrogen pressurizing unit, a hydrogen pressurizing station and a high-flow hydrogen compression system, is used for hydrogen pressurizing of a hydrogenation station and a gas filling station, is provided with a gas cylinder detection device and a hydrogen supply system pressure test device, and is used for gas tightness test of a matching pipeline valve, pressure resistance test, pressure fatigue test and other hydrogen energy industries, and a high-pressure element comprises a hydrogen high-pressure stop valve, a pressure reducing valve, a pipe fitting and other hydrogen pressurizing units, can pressurize nitrogen and hydrogen, is used for gas filling, pipeline gas replacement and gas sealing performance of a hydrogen supply system and a whole vehicle hydrogen system, has pressure of 45MPa and 100MPa, and is used for filling the hydrogen supply system of 35MPa and 70MPa and the like.
The working principle of the high-pressure air-tightness testing device is as follows:
the working principle of the air tightness testing machine of the high-pressure air tightness testing equipment is as follows: and when the air tightness testing machine reaches the standard value, the gas source is cut off, so that the constant air pressure in the product or the copying die cavity is ensured to be stable for a period of time. After the air pressure is stable, a detection link is entered, a pressure sensor of the air tightness tester records the current pressure value in real time, and after a period of testing, the real-time pressure value of the inner part of a product or an inner cavity of a profiling die is recorded according to the standard testing time of the product.
By implementing the high-pressure air tightness testing equipment, the pressure difference of two pressure values is compared, and whether a product has leakage or not is judged by analyzing and calculating an intelligent leakage detecting system of the air tightness testing machine. If the leakage phenomenon is not large, the pressure sensor of the air tightness testing machine records the current pressure value, after detecting for a period of time, the real-time pressure value is recorded, the differential pressure value is obtained through comparison of the two pressure values to represent the pressure drop value of the product, when the pressure drop value is within the standard leakage value, the product is represented to be free from leakage, and when the pressure drop value is higher than the standard leakage value, the product is represented to be leaked and is disqualified.
The high-pressure air tightness test equipment is characterized by comprising the following components:
1. the automatic booster pump driven by the inlet gas can realize the arbitrary adjustable and controllable output pressure.
2. Advanced technology and reasonable structural design. Has the characteristics of small volume, light weight and attractive and elegant appearance.
3. All the pressure-bearing parts adopt standard parts of international known brands, have no welding connection, are convenient to detach, have high safety coefficient, have long service life and are convenient to maintain.
The utility model has good effect.
Claims (5)
1. The high-pressure airtight test equipment comprises a driving air interface (21), a hydrogen interface (22) and a helium interface (23), and is characterized in that the driving air interface (21) is connected with one end of a first filter (2), the other end of the first filter (2) is connected with the left end of a pressure reducing valve (3), the right end of the pressure reducing valve (3) is connected with one end of a first ball valve (5), the other end of the first ball valve (5) is connected with a driving air input interface of a gas booster (1), the lower end of the pressure reducing valve (3) is connected with the upper end of a first pressure gauge (4) and a pneumatic switch (16), the lower end of the pneumatic switch (16) is connected with a driving air output interface of the gas booster (1), the hydrogen interface (22) is connected with one end of a second ball valve (6), the other end of the second ball valve (6) is connected with one end of a second filter (8) and the other end of a third ball valve (7), one end of the third ball valve (7) is connected with the first ball valve (23), the other end of the second filter (8) is connected with one end of the second pressure gauge (9) and the fifth ball valve (19) and one end of the gas booster (1) is connected with the hydrogen input interface of the gas booster (1), the first end of the gas booster (1) is connected with the first end of the first valve (20) and the one-way valve (20) is connected with the one-way valve (10), the input end of the first one-way valve (10) is connected with the other end of the fifth ball valve (19), the output end of the safety valve (29) is connected with the output end of the third one-way valve (17) and the pressure relief opening (27) of the safety valve, the input end of the third one-way valve (17) is connected with the safety pressure relief end of the gas booster (1), the other end of the buffer tube (11) is connected with one end of the third filter (12), the other end of the third filter (12) is connected with one end of the fourth ball valve (13), the other end of the fourth ball valve (13) is connected with one end of the third pressure gauge (15) and the needle valve (14) and the right end of the pneumatic switch (16) and the inflation tube interface (24), and the other end of the needle valve (14) is connected with the deflation tube interface (25) and the pressure detection opening (26).
2. A high-pressure air-tightness testing device according to claim 1, characterized in that said first pressure gauge (4), second pressure gauge (9), third pressure gauge (15) are electrically connected to a digital display device (18).
3. A high pressure air tightness test device according to claim 1, characterized in that said inflation tube interface (24) and deflation tube interface (25) are mounted on a hydrogenation gun interface (28).
4. A high-pressure air tightness test device according to claim 1, characterized in that the connections between the gas booster (1), the first filter (2), the pressure reducing valve (3), the first ball valve (5), the driving air interface (21) are connected with copper pipes.
5. A high-pressure air tightness test device according to claim 1, characterized in that the pressure reducing valve (3), the pneumatic switch (16) and the air booster (1) are connected by an air hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321945317.3U CN220525250U (en) | 2023-07-18 | 2023-07-18 | High-pressure air tightness test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321945317.3U CN220525250U (en) | 2023-07-18 | 2023-07-18 | High-pressure air tightness test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220525250U true CN220525250U (en) | 2024-02-23 |
Family
ID=89934337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321945317.3U Active CN220525250U (en) | 2023-07-18 | 2023-07-18 | High-pressure air tightness test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220525250U (en) |
-
2023
- 2023-07-18 CN CN202321945317.3U patent/CN220525250U/en active Active
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