CN111521353A - Measuring device and measuring method for air leakage of integrated prevention cabin - Google Patents
Measuring device and measuring method for air leakage of integrated prevention cabin Download PDFInfo
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- CN111521353A CN111521353A CN202010364560.0A CN202010364560A CN111521353A CN 111521353 A CN111521353 A CN 111521353A CN 202010364560 A CN202010364560 A CN 202010364560A CN 111521353 A CN111521353 A CN 111521353A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention relates to the technical field of ships, in particular to a device and a method for measuring air leakage of a centralized anti-cabin, wherein the device for measuring air leakage of the centralized anti-cabin comprises a fan; one end of the first air volume regulator is communicated with the fan and is used for detecting the air volume flowing through the first air volume regulator; one end of the airtight valve is communicated with the first air volume regulator, and the other end of the airtight valve can be communicated with the defense collecting cabin; the first sensor assembly is arranged in the collection and protection cabin and used for measuring air pressure, air temperature and humidity in the collection and protection cabin; and the control device is electrically connected with the fan, the first air volume regulator and the airtight valve, can record measuring time and the air volume flowing through the first air volume regulator, and can control the fan, the first air volume regulator and the airtight valve according to a signal transmitted by the first sensor component. The invention can accurately measure the air leakage of the integrated protection cabin.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a device and a method for measuring air leakage of a centralized anti-cabin.
Background
In a conventional ship, the amount of air leakage in a region such as a cabin having a demand for prevention collection needs to be measured. In the prior art, compressed air is filled into a centralized prevention cabin, and the air leakage of the cabin is calculated by observing the change of pressure difference in the centralized prevention cabin. However, the prior art has the following defects:
1. the specific air leakage of the defense-collecting cabin cannot be accurately mastered.
2. The measurement (test) time of air leakage of the integrated protection cabin (especially the integrated protection large area) cannot be mastered, and the test period is influenced.
Therefore, a device and a method for measuring the air leakage of the cabin are needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a device and a method for measuring air leakage of a collective protection cabin, which can accurately measure the air leakage of the collective protection cabin.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preventive cabin air leakage measuring device comprises:
a fan;
one end of the first air volume regulator is communicated with the fan and is used for detecting the air volume flowing through the first air volume regulator;
one end of the airtight valve is communicated with the first air volume regulator, and the other end of the airtight valve can be communicated with the defense collecting cabin;
the first sensor assembly is arranged in the collection and protection cabin and used for measuring air pressure, air temperature and humidity in the collection and protection cabin;
and the control device is electrically connected with the fan, the first air volume regulator and the airtight valve, can record measuring time and the air volume flowing through the first air volume regulator, and can control the fan, the first air volume regulator and the airtight valve according to a signal transmitted by the first sensor component.
Optionally, the first sensor assembly includes a first differential pressure sensor and a first temperature and humidity sensor, and the first differential pressure sensor and the first temperature and humidity sensor are both electrically connected to the control device.
Optionally, the sensor further comprises a second sensor assembly, and the second sensor assembly is disposed in the outside atmosphere and is used for measuring the pressure and the temperature and humidity of the outside atmosphere.
Optionally, the second sensor assembly includes a second differential pressure sensor and a second temperature and humidity sensor, and the second differential pressure sensor and the second temperature and humidity sensor are both disposed outside the centralized protection cabin and are both electrically connected to the control device.
Optionally, the control device comprises a signal collection box and a controller, the first differential pressure sensor, the first temperature and humidity sensor, the second differential pressure sensor and the second temperature and humidity sensor are electrically connected with the signal collection box, the signal collection box is electrically connected with the controller, the controller is electrically connected with the fan, the first air volume regulator and the airtight valve, and the controller can record measurement time and air volume flowing through the first air volume regulator.
Optionally, the air quantity controller is arranged between the first air quantity controller and the airtight valve, and is used for measuring the air speed of the air flowing through the first air quantity controller.
Optionally, the air conditioner further comprises a second air volume regulator, which is arranged between the first air volume regulator and the airtight valve, is electrically connected with the controller, and is used for discharging part of the gas.
Optionally, the signal acquisition box is electrically connected with the controller.
Optionally, the fan is a variable frequency fan.
A method for measuring the air leakage of the anti-aircraft cabin by using the device for measuring the air leakage of the anti-aircraft cabin comprises the following steps:
s1, controlling a fan, a first air volume regulator and an airtight valve to be opened by a control device, and blowing air to a defense collecting cabin by the fan;
s2, detecting the air pressure and the temperature and humidity in the defense collecting cabin by the first sensor assembly;
s3, when the air pressure reaches a first set threshold value, the control device controls the fan, the first air volume regulator and the airtight valve to be closed according to the feedback signal of the first sensor assembly;
s4, the control device starts timing;
s5, when the first sensor assembly detects that the air pressure in the defense collecting cabin is reduced to a second set threshold value, the control device controls the fan, the first air volume regulator and the airtight valve to be opened according to the feedback signal of the first sensor assembly, air is continuously blown into the defense collecting cabin, the control device stops timing, and the control device starts to record the air volume flowing through the first air volume regulator;
s6, the first air volume regulator detects the air volume flowing through the first air volume regulator;
s7, the first sensor assembly detects the air pressure in the defense collecting cabin until the air pressure reaches the first set threshold value, and the control device controls the fan, the first air volume regulator and the airtight valve to be closed according to the feedback signal of the first sensor assembly;
and S8, stopping detecting the air quantity flowing through the first air quantity regulator by the first air quantity regulator.
The invention has the beneficial effects that:
the invention provides a device and a method for measuring air leakage of a centralized defense cabin. The air leakage amount of the integrated defense cabin can be accurately measured in the mode.
Drawings
Fig. 1 is a schematic diagram of a device for measuring air leakage of a fire-proof cabin.
In the figure:
1-a fan; 2-a first air volume regulator; 3-a gas tight valve; 4-a first sensor assembly; 41-a first differential pressure sensor; 42-a first temperature and humidity sensor; 5-a measuring instrument; 6-a second air volume regulator; 7-a second sensor assembly; 71-a second differential pressure sensor; 72-a second temperature and humidity sensor; 8-a defense-gathering cabin; 9-a control device; 91-a controller; 92-a signal collection box; 10-power box.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to accurately measure the air leakage of the integrated protection cabin and simultaneously accurately master the measuring time of the air leakage, the invention provides a measuring device for the air leakage of the integrated protection cabin, as shown in figure 1. The device for measuring the air leakage of the prevention cabin comprises a fan 1, a first air volume regulator 2, an airtight valve 3, a first sensor assembly 4 and a control device 9. One end of the first air volume regulator 2 is communicated with the fan 1 and is used for detecting the air volume flowing through the first air volume regulator; one end of the airtight valve 3 is communicated with the first air volume regulator 2, and the other end can be communicated with the defense collecting cabin 8; the first sensor assembly 4 is arranged in the collection and protection cabin 8 and is used for measuring the air pressure, the air temperature and the humidity in the collection and protection cabin 8; the control device 9 is electrically connected with the fan 1, the first air volume regulator 2 and the airtight valve 3, the control device 9 can record the measuring time and the air volume flowing through the first air volume regulator 2, and can control the fan 1, the first air volume regulator 2 and the airtight valve 3 according to the signal transmitted by the first sensor assembly 4.
Specifically, in this embodiment, airtight valve 3 is airtight butterfly valve, and through setting up airtight valve 3, after closing fan 1 and airtight valve 3, guarantee that the gas in collection prevention cabin 8 can not leak through airtight valve 3 department to guarantee the accuracy of measuring result.
Further, the first sensor assembly 4 includes a first differential pressure sensor 41 and a first temperature and humidity sensor 42, and both the first differential pressure sensor 41 and the first temperature and humidity sensor 42 are electrically connected to the control device 9. The first differential pressure sensor 41 is used to measure the pressure of the gas in the integrated chamber 8, and the first temperature/humidity sensor 42 is used to measure the temperature/humidity of the gas in the integrated chamber 8.
Further, a second sensor assembly 7 is provided in the outside atmosphere for measuring the pressure and temperature and humidity of the outside atmosphere. Specifically, the second sensor assembly 7 includes a second differential pressure sensor 71 and a second temperature and humidity sensor 72, and the second differential pressure sensor 71 and the second temperature and humidity sensor 72 are both disposed outside the containment compartment 8 and are both electrically connected to the control device 9.
The gas pressure in the containment chamber 8 is measured by the first differential pressure sensor 41, and the gas pressure of the outside atmosphere is measured by the second differential pressure sensor 71; the first temperature and humidity sensor 42 measures the temperature and humidity of the gas in the integrated protection cabin 8, and the second temperature and humidity sensor 72 measures the temperature and humidity of the gas in the outside atmosphere, so that the accuracy of the air leakage of the integrated protection cabin 8 through air volume conversion in the follow-up process is guaranteed.
Further, the control device 9 comprises a signal collection box 92 and a controller 91, the first differential pressure sensor 41, the first temperature and humidity sensor 42, the second differential pressure sensor 71 and the second temperature and humidity sensor 72 are all electrically connected with the signal collection box 92, the signal collection box 92 is electrically connected with the controller 91, the controller 91 is electrically connected with the fan 1, the first air volume regulator 2 and the airtight valve 3, and the controller 91 can record the measurement time and the air volume flowing through the first air volume regulator 2. Through setting up signal acquisition box 92 to handling of sensor, then transmit to controller 91, controller 91 again to fan 1, first air regulator 2 and airtight valve 3 control, guarantee this measuring device smooth operation.
Further, a measuring instrument 5 for measuring the wind speed of the wind flowing through the first air volume regulator 2 is provided between the first air volume regulator 2 and the airtight valve 3.
Further, a second air volume damper 6 is provided between the first air volume damper 2 and the airtight valve 3, and the second air volume damper 6 is electrically connected to the controller 91 for discharging a part of the air. When the gas pressure in the concentration prevention chamber 8 approaches the design value, the second air volume regulator 6 can be opened to discharge part of the gas, so that the air volume entering the concentration prevention chamber 8 is slowly increased. Specifically, the second air volume regulator 6 is also capable of detecting the volume of air flowing through itself. The air quantity leaked from the prevention cabin 8 is obtained by subtracting the air quantity flowing through the second air quantity regulator 6 from the air quantity flowing through the first air quantity regulator 2.
Further, the controller 91 and the signal collection box 92 are provided with separate power supply boxes 10, and the power supply boxes 10 are electrically connected with both the controller 91 and the signal collection box 92. The controller 91 and the signal collection box 92 can work normally.
Further, in order to save electric energy, in this embodiment, the fan 1 is a variable frequency fan 1.
The embodiment also provides a method for measuring the air leakage amount of the integrated protection cabin 8, which uses the above device for measuring the air leakage amount of the integrated protection cabin 8, and comprises the following steps:
s1, the controller 91 in the control device 9 controls the fan 1, the first air volume regulator 2 and the airtight valve 3 to be opened, and the fan 1 blows air to the defense collecting cabin 8;
s2, the first differential pressure sensor 41 detects the air pressure and the temperature and humidity in the defense collection chamber 8;
s3, when the air pressure reaches a first set threshold, the controller 91 controls the fan 1, the first air volume regulator 2 and the airtight valve 3 to be closed according to the feedback signal of the first differential pressure sensor 41;
s4, the controller 91 starts timing;
s5, when the first differential pressure sensor 41 detects that the air pressure in the defense collecting cabin 8 drops to a second set threshold, the controller 91 controls the fan 1, the first air volume regulator 2 and the airtight valve 3 to be opened according to the feedback signal of the first differential pressure sensor 41, continues to blow air into the defense collecting cabin 8, the control device 9 stops timing, and the control device 9 starts to record the air volume flowing through the first air volume regulator 2;
s6, the first air volume regulator 2 detects the air volume flowing through the first air volume regulator;
s7, the first pressure difference sensor 41 detects the air pressure in the defense collection chamber 8 until the air pressure reaches a first set threshold value, and the controller 91 controls the fan 1, the first air volume regulator 2 and the airtight valve 3 to be closed according to the feedback signal of the first pressure difference sensor 41;
s8, the first air volume damper 2 stops detecting the air volume flowing through itself.
At this time, the air volume flowing through the first air volume regulator 2 is the air leakage volume of the air collecting and preventing cabin 8, and then the air leakage value is obtained through conversion according to the measurement values of the first sensor assembly 4 and the second sensor assembly 7. By adopting the mode, the air leakage of the integrated defense cabin 8 can be accurately measured, and meanwhile, the measurement time of the air leakage can be accurately mastered.
In other embodiments, when the air pressure in the air collection and protection cabin 8 reaches the first set threshold, the fan 1 maintains low-frequency operation, the controller 91 starts timing, the second air volume regulator 6 releases the redundant air volume, and the air pressure in the air collection and protection cabin 8 is kept at the first set threshold all the time, namely, the first air volume regulator 2 and the second air volume regulator 6 do not stop working during the test until the test is finished, and the leakage amount of the air collection and protection cabin 8 is the difference value of the air volume of the first air volume regulator 2 and the air volume of the second air volume regulator 6.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a collection prevents cabin air leakage measuring device which characterized in that includes:
a fan (1);
one end of the first air volume regulator (2) is communicated with the fan (1) and is used for detecting the air volume flowing through the first air volume regulator;
the air-tight valve (3), one end of the air-tight valve (3) is communicated with the first air volume regulator (2), and the other end can be communicated with the defense collecting cabin (8);
the first sensor assembly (4) is arranged in the collection and protection cabin (8) and is used for measuring the air pressure, the air temperature and the humidity in the collection and protection cabin (8);
and the control device (9) is electrically connected with the fan (1), the first air volume regulator (2) and the airtight valve (3), the control device (9) can record measuring time and air volume flowing through the first air volume regulator (2), and can control the fan (1), the first air volume regulator (2) and the airtight valve (3) according to signals transmitted by the first sensor assembly (4).
2. A containment room air leakage measuring device according to claim 1, wherein said first sensor assembly (4) comprises a first differential pressure sensor (41) and a first temperature and humidity sensor (42), said first differential pressure sensor (41) and said first temperature and humidity sensor (42) being electrically connected to said control device (9).
3. A containment room air leakage measuring device according to claim 2, further comprising a second sensor assembly (7), wherein the second sensor assembly (7) is disposed in the outside atmosphere for measuring the pressure and temperature and humidity of the outside atmosphere.
4. A containment room air leakage measuring device according to claim 3, wherein the second sensor assembly (7) comprises a second differential pressure sensor (71) and a second temperature and humidity sensor (72), and the second differential pressure sensor (71) and the second temperature and humidity sensor (72) are both disposed outside the containment room (8) and are both electrically connected to the control device (9).
5. The air leakage measuring device of the air collection and protection cabin of claim 4, wherein the control device (9) comprises a signal collection box (92) and a controller (91), the first differential pressure sensor (41), the first temperature and humidity sensor (42), the second differential pressure sensor (71) and the second temperature and humidity sensor (72) are all electrically connected with the signal collection box (92), the signal collection box (92) is electrically connected with the controller (91), the controller (91) is electrically connected with the fan (1), the first air volume regulator (2) and the airtight valve (3), and the controller (91) can record measuring time and air volume flowing through the first air volume regulator (2).
6. A cabin air leakage prevention measuring device according to claim 1, further comprising a measuring instrument (5), wherein said measuring instrument (5) is disposed between said first air volume regulator (2) and said airtight valve (3) for measuring the wind speed of the wind flowing through said first air volume regulator (2).
7. A collection prevention cabin air leakage measuring device according to claim 5, characterized by further comprising a second air volume regulator (6) arranged between the first air volume regulator (2) and the airtight valve (3) and electrically connected with the controller (91) for discharging part of air.
8. A containment room air leakage measuring device according to claim 5, further comprising a power box (10), wherein said power box (10) is electrically connected to both said controller (91) and said signal collection box (92).
9. A collection protection cabin air leakage measuring device according to claim 1, characterized in that the fan (1) is a variable frequency fan.
10. An air leakage measuring method of an air leakage prevention integrated cabin, which is characterized by using the air leakage measuring device of the air leakage prevention integrated cabin according to any one of claims 1-9, and comprises the following steps:
s1, the control device (9) controls the fan (1), the first air volume regulator (2) and the airtight valve (3) to be opened, and the fan (1) blows air to the defense collecting cabin (8);
s2, detecting the air pressure and the temperature and humidity in the defense collecting cabin (8) by the first sensor assembly (4);
s3, when the air pressure reaches a first set threshold value, the control device (9) controls the fan (1), the first air volume regulator (2) and the airtight valve (3) to be closed according to the feedback signal of the first sensor assembly (4);
s4, the control device (9) starts timing;
s5, when the first sensor assembly (4) detects that the air pressure in the collection and protection cabin (8) is reduced to a second set threshold value, the control device (9) controls the fan (1), the first air volume regulator (2) and the airtight valve (3) to be opened according to a feedback signal of the first sensor assembly (4), air is continuously blown into the collection and protection cabin (8), the control device (9) stops timing, and the control device (9) starts to record the air volume flowing through the first air volume regulator (2);
s6, the first air volume regulator (2) detects the air volume flowing through the first air volume regulator;
s7, the first sensor assembly (4) detects the air pressure in the collection and protection cabin (8) until the air pressure reaches the first set threshold value, and the control device (9) controls the fan (1), the first air volume regulator (2) and the airtight valve (3) to be closed according to the feedback signal of the first sensor assembly (4);
and S8, the first air volume regulator (2) stops detecting the air volume flowing through the first air volume regulator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010364560.0A CN111521353A (en) | 2020-04-30 | 2020-04-30 | Measuring device and measuring method for air leakage of integrated prevention cabin |
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| CN202010364560.0A CN111521353A (en) | 2020-04-30 | 2020-04-30 | Measuring device and measuring method for air leakage of integrated prevention cabin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916309A (en) * | 2021-11-03 | 2022-01-11 | 中船黄埔文冲船舶有限公司 | Air leakage detection device for ship and use method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100784896B1 (en) * | 2007-05-11 | 2007-12-11 | 에스지에스 에스알에스 주식회사 | Apparatus for leak testing of lng cargo tank |
| CN102507106A (en) * | 2011-11-21 | 2012-06-20 | 北京卫星环境工程研究所 | Method for monitoring leakage in on-orbit state for spacecraft |
| CN202676405U (en) * | 2012-06-29 | 2013-01-16 | 武汉东测科技有限责任公司 | Air leakage test device in automobile cabin |
| CN103091053A (en) * | 2011-11-07 | 2013-05-08 | 中国广东核电集团有限公司 | Nuclear power plant generator whole air tight test method |
| CN203455146U (en) * | 2013-09-07 | 2014-02-26 | 安徽人防设备有限公司 | Automatic airtight detection machine for people's air defense equipment |
| CN204027791U (en) * | 2014-07-29 | 2014-12-17 | 江苏神通阀门股份有限公司 | A kind of air-valve leakage test device |
| CN104535279A (en) * | 2015-01-04 | 2015-04-22 | 郑州轻工业学院 | Novel waterproof and dustproof level dry detection method and device |
| CN204924592U (en) * | 2015-07-21 | 2015-12-30 | 江苏坚威防护工程科技有限公司 | Portable gas tightness detection device |
| CN106768727A (en) * | 2016-12-26 | 2017-05-31 | 沪东中华造船(集团)有限公司 | For the close property detecting system and method for Collective Protective System |
| CN108716970A (en) * | 2018-05-31 | 2018-10-30 | 广船国际有限公司 | A kind of ship collection defence area air tight test method |
| CN111024328A (en) * | 2019-12-28 | 2020-04-17 | 武汉市天毅达测控科技有限公司 | Pressure measurement structure airtightness detection device |
-
2020
- 2020-04-30 CN CN202010364560.0A patent/CN111521353A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100784896B1 (en) * | 2007-05-11 | 2007-12-11 | 에스지에스 에스알에스 주식회사 | Apparatus for leak testing of lng cargo tank |
| CN103091053A (en) * | 2011-11-07 | 2013-05-08 | 中国广东核电集团有限公司 | Nuclear power plant generator whole air tight test method |
| CN102507106A (en) * | 2011-11-21 | 2012-06-20 | 北京卫星环境工程研究所 | Method for monitoring leakage in on-orbit state for spacecraft |
| CN202676405U (en) * | 2012-06-29 | 2013-01-16 | 武汉东测科技有限责任公司 | Air leakage test device in automobile cabin |
| CN203455146U (en) * | 2013-09-07 | 2014-02-26 | 安徽人防设备有限公司 | Automatic airtight detection machine for people's air defense equipment |
| CN204027791U (en) * | 2014-07-29 | 2014-12-17 | 江苏神通阀门股份有限公司 | A kind of air-valve leakage test device |
| CN104535279A (en) * | 2015-01-04 | 2015-04-22 | 郑州轻工业学院 | Novel waterproof and dustproof level dry detection method and device |
| CN204924592U (en) * | 2015-07-21 | 2015-12-30 | 江苏坚威防护工程科技有限公司 | Portable gas tightness detection device |
| CN106768727A (en) * | 2016-12-26 | 2017-05-31 | 沪东中华造船(集团)有限公司 | For the close property detecting system and method for Collective Protective System |
| CN108716970A (en) * | 2018-05-31 | 2018-10-30 | 广船国际有限公司 | A kind of ship collection defence area air tight test method |
| CN111024328A (en) * | 2019-12-28 | 2020-04-17 | 武汉市天毅达测控科技有限公司 | Pressure measurement structure airtightness detection device |
Non-Patent Citations (2)
| Title |
|---|
| 张立新: "《机电工程施工设计》", 30 June 2007, 中国电力出版社 * |
| 王国亮: "基于环境补偿的密封舱气密性压力预测模型", 《液压与气动》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916309A (en) * | 2021-11-03 | 2022-01-11 | 中船黄埔文冲船舶有限公司 | Air leakage detection device for ship and use method thereof |
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Application publication date: 20200811 |