CN220437687U - Equipment for detecting air tightness - Google Patents
Equipment for detecting air tightness Download PDFInfo
- Publication number
- CN220437687U CN220437687U CN202321270751.6U CN202321270751U CN220437687U CN 220437687 U CN220437687 U CN 220437687U CN 202321270751 U CN202321270751 U CN 202321270751U CN 220437687 U CN220437687 U CN 220437687U
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- air
- air inlet
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- gas
- pressure
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- 238000012360 testing method Methods 0.000 claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses equipment for detecting air tightness, which comprises an air inlet unit, a voltage stabilizing unit and a detection unit, wherein the air inlet unit, the voltage stabilizing unit and the detection unit are sequentially communicated from left to right; the air inlet unit comprises an air inlet pipeline and is used for communicating an external air source; the pressure stabilizing unit comprises a gas pipeline, and a gas storage tank and a pressure regulating valve which are arranged on the gas pipeline; the detection unit comprises a test cavity and a pressure sensor, and equipment to be detected is placed in the test cavity. The device to be detected is placed in the test cavity, the external air source is firstly introduced into the air inlet pipe, the external air source is regulated to a preset test pressure through the air storage tank and the pressure regulating valve, then the regulated air is introduced into the test cavity, whether the device to be detected leaks air or not is judged from the numerical value on the pressure sensor, and the device is simple in structure and convenient to use.
Description
Technical Field
The utility model relates to the field of air tightness detection, in particular to equipment for detecting air tightness.
Background
The air tightness detection device is widely applied to industrial production, and mainly detects the tightness of a detected object to ensure that the detected product has no defect of air leakage or water leakage.
The gas tightness check out test set in the present market detects the flow comparatively loaded down with trivial details, and to waiting to detect the unstable atmospheric pressure of product lets in, reduced the efficiency and the precision that wait to detect the gas tightness of product and detect, consequently how to improve the stability of atmospheric pressure and improve the problem that the accuracy of testing result need be solved.
Disclosure of Invention
The utility model mainly aims to provide equipment for detecting air tightness, which is simple in structure and convenient to use, and a product to be detected is placed into a test cavity for air tightness detection.
In order to achieve the above object, the present utility model provides an apparatus for detecting air tightness, comprising an air intake unit, a pressure stabilizing unit and a detecting unit, which are sequentially communicated from left to right; the air inlet unit comprises an air inlet pipeline and is used for communicating an external air source; the pressure stabilizing unit comprises a gas pipeline, and a gas storage tank and a pressure regulating valve which are arranged on the gas pipeline; the detection unit comprises a test cavity and a pressure sensor, and equipment to be detected is placed in the test cavity.
Further, an air compressor is connected to the air inlet end of the air inlet pipeline, and the air outlet end of the air inlet pipeline is communicated with the air storage tank.
Further, a first valve is arranged on the air inlet pipeline and is positioned between the air compressor and the air storage tank.
Further, the air inlet end of the air transmission pipeline is connected with the air storage tank, and the air outlet end of the air transmission pipeline is communicated with the testing cavity.
Further, the pressure sensor is arranged on the gas pipeline and is positioned on the right side of the pressure regulating valve.
Further, a second valve is arranged on the gas transmission pipeline and is positioned between the pressure regulating valve and the pressure sensor.
Further, an exhaust pipeline is further arranged on the gas pipeline, the exhaust pipeline is arranged between the second valve and the pressure sensor and is communicated with the gas pipeline, and a third valve is arranged on the exhaust pipeline.
Further, the test cavity is a sealing cavity.
The beneficial effects of the utility model are as follows:
the device for detecting the air tightness is characterized in that the device to be detected is placed in a test cavity, an external air source is firstly introduced into an air inlet pipe, the external air source is regulated to a preset test pressure through the air storage tank and the pressure regulating valve, then the regulated air is introduced into the test cavity, and whether the device to be detected leaks air or not is judged through the numerical value on the pressure sensor.
Drawings
Fig. 1 is a schematic view of an apparatus for detecting airtightness according to an embodiment of the present utility model.
Reference numerals illustrate: 1. an air intake unit; 2. a voltage stabilizing unit; 3. a detection unit; 11. an air intake duct; 21. a gas line; 24. a pressure regulating valve; 25. a gas storage tank; 31. a test cavity; 27. a pressure sensor; 12. an air compressor; 4. a first valve; 5. a second valve; 7. an exhaust duct; 6. and a third valve.
Detailed description of the preferred embodiments
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. Embodiments and features of embodiments in this application may be combined with each other without conflict.
See fig. 1.
The utility model relates to equipment for detecting air tightness, which comprises an air inlet unit 1, a pressure stabilizing unit 2 and a detecting unit 3, wherein the air inlet unit 1, the pressure stabilizing unit 2 and the detecting unit 3 are sequentially communicated from left to right;
the air inlet unit 1 comprises an air inlet pipeline 11 for communicating with an external air source;
the pressure stabilizing unit 2 comprises a gas pipeline 21, and a gas storage tank 25 and a pressure regulating valve 24 which are arranged on the gas pipeline 21;
the detection unit 3 comprises a test cavity 31 and a pressure sensor 27, and equipment to be detected is placed in the test cavity 31.
When the device to be detected is placed in the test cavity 31, an external air source is firstly introduced into the air inlet pipe, the external air source is regulated to a preset test pressure through the air storage tank 25 and the pressure regulating valve 24, then the air is introduced into the test cavity 31, and whether the detected device leaks air or not is judged through the value of the pressure sensor 27, so that the device to be detected is simple and efficient.
In an embodiment, an air compressor 12 is connected to an air inlet end of the air inlet pipe 11, and an air outlet end of the air inlet pipe 11 is connected to the air storage tank 25.
So designed, the compressed gas supplied by the air compressor 12 passes through the air inlet pipe 11 and then is introduced into the air tank 25 through the air inlet pipe for preliminary pressure stabilization.
In one embodiment, the air inlet pipe 11 is provided with a first valve 4, and the first valve 4 is located between the air compressor 12 and the air storage tank 25.
When the device is used, after compressed gas provided by the air compressor 12 is introduced into the gas storage tank 25, the first valve 4 is closed, so that no other gas is ensured in the gas storage tank 25, the stability of the gas is ensured, and the error generated by the entering of external gas to the device detection is avoided.
In an embodiment, the air inlet end of the air pipe 21 is connected to the air storage tank 25, and the air outlet end of the air pipe 21 is connected to the test cavity 31.
In one embodiment, the pressure sensor 27 is disposed on the gas line 21 and on the right side of the pressure regulating valve 24.
In one embodiment, the gas pipeline 21 is provided with a second valve 5, and the second valve 5 is located between the pressure regulating valve 24 and the pressure sensor 27.
After the compressed gas input by the air compressor 12 passes through the pressure stabilizing unit 2, the first valve 4 and the second valve 5 are closed, the air pressure in the pressure stabilizing unit 2 is regulated to the test air pressure through the pressure regulating valve 24, the second valve 5 is opened, the gas is filled into the test cavity 31, and the pressure sensor 27 directly monitors the pressure in the test cavity 31 to detect whether the detection equipment leaks air or not.
In an embodiment, the gas pipeline 21 is further provided with an exhaust pipeline 7, the exhaust pipeline 7 is disposed between the second valve 5 and the pressure sensor 27 and is communicated with the gas pipeline 21, and the exhaust pipeline 7 is provided with a third valve 6.
So designed, when the test is completed, the compressed air in the test chamber 31 is exhausted, so that the exhaust pipe is set, the third valve is opened during the exhaust, and the pressure sensor 27 always detects the pressure of the exhaust process to ensure the safety of the device.
In one embodiment, the test chamber 31 is a sealed chamber.
The specific use mode of the device for detecting the air tightness is as follows:
1. when the device is used for the first time, standard air tightness equipment is placed in the test cavity 31, the second valve 5 is closed, the third valve 6 is opened, the test cavity 31 is communicated with atmospheric pressure, the first valve 4 is opened, compressed air provided by the air compressor 12 is introduced into the air storage tank 25 for preliminary pressure stabilization, the first valve 4 is closed, and the air pressure in the air storage tank 25 is regulated to a preset test pressure P through the pressure regulating valve 24;
2. the third valve 6 is closed, the second valve 5 is opened, the air pressure is filled into the test cavity in which the standard airtight equipment is placed, the pressure is stabilized for a period of time, and when the pressure value displayed by the pressure sensor 27 is in a stable state, the P1 at this time is recorded and set as a standard value.
3. After the test is completed, the third valve 6 is opened for exhausting, the pressure sensor 27 always monitors the pressure in the exhausting process to ensure the safety of the device, and standard airtight equipment is taken out after the exhausting is completed.
4. The air tightness equipment to be tested is placed in the test cavity 31, and the steps are repeated, and the judgment result is as follows:
(1) Air leakage: when the pressure measured by the air tightness equipment to be measured in the step 2 is smaller than P1, representing that the air enters the air tightness equipment to be measured and the product leaks air;
(2) Qualified: and when the pressure measured by the to-be-measured airtight equipment in the step 2 is more than or equal to P1, the gas does not enter the to-be-measured airtight equipment, and the product is qualified.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. An apparatus for detecting air tightness, characterized in that: comprises an air inlet unit (1), a voltage stabilizing unit (2) and a detection unit (3) which are sequentially communicated from left to right;
the air inlet unit (1) comprises an air inlet pipeline (11) for communicating with an external air source;
the pressure stabilizing unit (2) comprises a gas pipeline (21), and a gas storage tank (25) and a pressure regulating valve (24) which are arranged on the gas pipeline (21);
the detection unit (3) comprises a test cavity (31) and a pressure sensor (27), equipment to be detected is placed in the test cavity (31), and the test cavity (31) is a sealing cavity;
an air inlet end of the air inlet pipeline (11) is connected with an air compressor (12), and an air outlet end of the air inlet pipeline (11) is communicated with the air storage tank (25);
the air inlet pipeline (11) is provided with a first valve (4), and the first valve (4) is positioned between the air compressor (12) and the air storage tank (25).
2. The apparatus for detecting air tightness according to claim 1, wherein an air inlet end of the air pipe (21) is connected to the air tank (25), and an air outlet end of the air pipe (21) communicates with the test chamber (31).
3. The apparatus for detecting air tightness according to claim 1, wherein the pressure sensor (27) is provided on the gas line (21) on the right side of the pressure regulating valve (24).
4. A device for detecting tightness according to claim 3, characterized in that the gas line (21) is provided with a second valve (5), the second valve (5) being located between the pressure regulating valve (24) and the pressure sensor (27).
5. The device for detecting tightness according to claim 4, wherein the gas pipe (21) is further provided with a gas exhaust pipe (7), the gas exhaust pipe (7) is arranged between the second valve (5) and the pressure sensor (27) and is communicated with the gas pipe (21), and the gas exhaust pipe (7) is provided with a third valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321270751.6U CN220437687U (en) | 2023-05-22 | 2023-05-22 | Equipment for detecting air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321270751.6U CN220437687U (en) | 2023-05-22 | 2023-05-22 | Equipment for detecting air tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220437687U true CN220437687U (en) | 2024-02-02 |
Family
ID=89697320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321270751.6U Active CN220437687U (en) | 2023-05-22 | 2023-05-22 | Equipment for detecting air tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220437687U (en) |
-
2023
- 2023-05-22 CN CN202321270751.6U patent/CN220437687U/en active Active
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