CN212030850U - Portable air tightness detection device - Google Patents
Portable air tightness detection device Download PDFInfo
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- CN212030850U CN212030850U CN202020563592.9U CN202020563592U CN212030850U CN 212030850 U CN212030850 U CN 212030850U CN 202020563592 U CN202020563592 U CN 202020563592U CN 212030850 U CN212030850 U CN 212030850U
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- hose
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- detection device
- pressure
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000005070 sampling Methods 0.000 claims description 9
- 230000008602 contraction Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a portable gas tightness detection device mainly includes: the device comprises a ventilator (2), an air pipe (3), a pressure collecting nozzle (4), a differential pressure sensor (1), a first hose (31), a second hose (32) and a connector (5); the ventilator (2) is connected with the pressure production nozzle (4) through a first hose (31), the pressure production nozzle (4) is connected with the coupler (5) through a second hose (32), and the differential pressure sensor (1) is connected with the pressure production nozzle (4) through two air pipes (3); the utility model discloses a portable gas tightness detection device has easily to carry, easy and simple to handle, low in manufacturing cost, detection accuracy height etc. advantage.
Description
Technical Field
The utility model relates to a sealing performance detection device, especially a portable gas tightness detection device.
Background
In practical work, many devices have high requirements on air tightness; the air tightness detection in a laboratory belongs to a conventional performance detection, and particularly relates to a method for detecting the air leakage of less than 12m3The detection of/h is common, and the method generally adopted is to measure the air leakage by using a flowmeter; but greater than 100m for air leakage3In the on-site detection of the leakage amount, the measurement range of the leakage amount is enlarged, so that the volume of a conventional flowmeter and accessory workpieces of the conventional flowmeter is enlarged, the workpieces are complicated, and the requirement of on-site real-time detection is difficult to meet.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problems, the inventor designs a portable air tightness detection device through intensive research, and the technical scheme is as follows: a portable air tightness detection device mainly comprises: the device comprises a differential pressure sensor, a ventilator, an air pipe, a pressure production nozzle, a first hose, a second hose and a connector; the ventilator is connected with the pressure production nozzle through a first hose, the pressure production nozzle is connected with the coupler through a second hose, and the differential pressure sensor is connected with the pressure production nozzle through two air pipes;
further, an air outlet of the ventilator is connected with one end of the first hose through a hoop;
furthermore, the pressure sampling nozzle is a hollow part containing a hollow cavity, the hollow cavity comprises a contraction pipe, a choke pipe and an expansion pipe which are sequentially connected, and two air hole columns which are respectively communicated with the choke pipe and the expansion pipe are further arranged on the side wall of the pressure sampling nozzle; one end of the pressure production nozzle containing the shrinkage pipe is connected with the other end of the first hose through a hoop; the other end of the pressure production nozzle containing the expansion pipe is connected with one end of a second hose through a hoop;
further, the connector is connected with the other end of the second hose through a clamp;
furthermore, the maximum air volume of the ventilator is not less than 600m3And/h, the rotating speed is not higher than 8000 rpm.
The utility model relates to a portable gas tightness detection device has following beneficial effect:
1. the upper limit of the air leakage amount of the air tightness detection is improved to 500m3/h；
2. Easy to carry-all the components of the device disclosed in the present invention can be placed together in a 450mm by 300mm box;
3. small volume, low cost and convenient operation and use.
Drawings
Fig. 1 is a schematic structural view of a portable air tightness detecting device disclosed by the present invention;
fig. 2 is a side view of the pressure producing nozzle 4;
fig. 3 is a sectional view of a plane a-a of the pressure producing nozzle 4;
wherein:
the specific implementation mode is as follows:
the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
as shown in fig. 1, 2 and 3, a portable air tightness detecting device mainly comprises: the device comprises a ventilator 2, an air pipe 3, a pressure production nozzle 4, a differential pressure sensor 1, a first hose 31, a second hose 32 and a coupler 5; the ventilator 2 is connected with a pressure production nozzle 4 through a first hose 31, the pressure production nozzle 4 is connected with a coupler 5 through a second hose 32, and the differential pressure sensor 1 is connected with the pressure production nozzle 4 through two air pipes 3; an air outlet of the ventilator 2 is connected with one end of the first hose 31 through a hoop; the pressure sampling nozzle 4 is a hollow part containing a hollow cavity, the hollow cavity comprises a contraction pipe 41, a throat pipe 42 and an expansion pipe 43 which are sequentially connected, and the side wall of the pressure sampling nozzle 4 is also provided with two air hole columns 44 which are respectively communicated with the throat pipe 42 and the expansion pipe 43; the differential pressure sensor 1 is respectively connected with the two air hole columns 44 through the two air pipes 3; one end of the pressure production nozzle 4 containing the shrinkage pipe 41 is connected with the other end of the first hose 31 through a hoop; the other end of the pressure production nozzle 4 containing the expansion pipe 43 is connected with one end of the second hose 32 through a clamp; the other end of the coupler 5 and the other end of the second hose 32 are connected by a clamp; the other end of the coupler 5 is connected with a detection device; the maximum air volume of the ventilator 2 is not less than 600m3And/h, the rotating speed is not higher than 8000 rpm. The first hose 31 and the second hose 32 are telescopic hoses, so that the mounting and carrying are convenient, and the diameters of the first hose and the second hose are matched with those of the ventilator 2, the pressure sampling nozzle 4 and the connector 5. The precision of the differential pressure sensor 1 is not less than one percent of the measuring range precision, and a commercially available model can be adopted. The coupling 5 may be a shrink hose of 400 and 500mm diameter; the diameter of the outer side of the shrink tube 41 can be 110-130mm, the diameter of the inner side of the shrink tube 41 can be 40-60mm, and the length of the shrink tube 41 can be 10-20 mm; the inner diameter of the throat 42 can be 40-60mm, and the length of the throat 42 can be 40-60 mm; the diameter of the inner side of the expansion tube 43 can be 70-90mm, and the diameter of the outer side of the expansion tubeThe diameter may be 100-120mm, and the length of the expanding tube 43 may be 80-100 mm.
The pressure recovery nozzle 4 is small in size, 130mm in outer diameter, light in weight and less than or equal to 3kg, and the whole size meets the requirement that air leakage is 0-500m3The requirement of the detection range; the pressure nozzle 4 is manufactured according to the requirements of the national standard GB/T2624.3, and is made of high-strength aluminum alloy or stainless steel and other materials.
The utility model relates to a portable air tightness detection device, which is mainly a device for detecting the air tightness of an airtight cavity by the principle of measuring the air quantity by a pressure sampling nozzle 4; the device acquires differential pressure data of a throat pipe (42) and an expansion pipe (43) in a pressure production nozzle 4 through a differential pressure sensor 1, when the measured differential pressure value keeps balance, the air leakage of the measured air-tight cavity can be obtained by measuring the air inflow of a fan, and the air tightness condition of the measured air-tight cavity can be clear according to the air leakage value.
After the device is connected, in the actual measurement process, the ventilator 2 needs to be electrified and then continuously supplies air into the equipment to be measured through the air volume detection pipeline until the differential pressure sensor 1 detects that the differential pressure values at two ends of the pressure sampling nozzle 4 can be stabilized for 3 min; the ventilator 2 is then completely deactivated; and 5 times of the operation measurement, calculating the air leakage of the tested equipment, averaging, and further judging the air tightness of the tested equipment.
The embodiments of the present invention have been described in detail; however, the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by a person of ordinary skill in the art.
Claims (5)
1. A portable airtightness detection device is characterized by mainly comprising: the device comprises a ventilator (2), an air pipe (3), a pressure collecting nozzle (4), a differential pressure sensor (1), a first hose (31), a second hose (32) and a connector (5); the ventilator (2) is connected with the pressure production nozzle (4) through a first hose (31), the pressure production nozzle (4) is connected with the coupler (5) through a second hose (32), and the differential pressure sensor (1) is connected with the pressure production nozzle (4) through two air pipes (3).
2. A portable air-tightness detection device according to claim 1, characterized in that the air outlet of the ventilator (2) is connected to one end of the first hose (31) by means of a clamp.
3. The portable air tightness detection device according to claim 1, wherein the pressure sampling nozzle (4) is a hollow member containing a hollow cavity, the hollow cavity comprises a contraction pipe (41), a throat pipe (42) and an expansion pipe (43) which are connected in sequence, and the side wall of the pressure sampling nozzle (4) is further provided with two air hole columns (44) which are respectively communicated with the throat pipe (42) and the expansion pipe (43); one end of the pressure production nozzle (4) containing the shrinkage pipe (41) is connected with the other end of the first hose (31) through a hoop; the other end of the pressure production nozzle (4) containing the expansion pipe (43) is connected with one end of the second hose (32) through a hoop.
4. A portable air-tightness detection device according to claim 1, characterized in that said coupling (5) is connected to the other end of said second hose (32) by means of a clip.
5. A portable tightness detection device according to claim 1, characterized in that said ventilator (2) has a maximum air flow not less than 600m3And/h, the rotating speed is not higher than 8000 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020563592.9U CN212030850U (en) | 2020-04-15 | 2020-04-15 | Portable air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020563592.9U CN212030850U (en) | 2020-04-15 | 2020-04-15 | Portable air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212030850U true CN212030850U (en) | 2020-11-27 |
Family
ID=73494649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020563592.9U Active CN212030850U (en) | 2020-04-15 | 2020-04-15 | Portable air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212030850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091836A (en) * | 2021-03-04 | 2021-07-09 | 彩虹（合肥）液晶玻璃有限公司 | Cooling blowing flow monitoring, adjusting and installing mechanism for glass substrate forming |
-
2020
- 2020-04-15 CN CN202020563592.9U patent/CN212030850U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091836A (en) * | 2021-03-04 | 2021-07-09 | 彩虹（合肥）液晶玻璃有限公司 | Cooling blowing flow monitoring, adjusting and installing mechanism for glass substrate forming |
| CN113091836B (en) * | 2021-03-04 | 2022-08-30 | 彩虹（合肥）液晶玻璃有限公司 | Cooling blowing flow monitoring and adjusting installation mechanism for glass substrate forming |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240201 Address after: 100089 Courtyard 109, Haidian District, Beijing Patentee after: 96901 unit of the Chinese PLA Country or region after: China Address before: No. 109 Beiqing Road, Haidian District, Beijing Patentee before: 23 Units of the Chinese People's Liberation Army 96901 Force Country or region before: China Patentee before: BEIJING RUILI HENG'AN TECHNOLOGY Co.,Ltd. |