CN202994396U - Air tightness detection device for air-tight door of nuclear power station under constant pressure - Google Patents
Air tightness detection device for air-tight door of nuclear power station under constant pressure Download PDFInfo
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- CN202994396U CN202994396U CN 201220719603 CN201220719603U CN202994396U CN 202994396 U CN202994396 U CN 202994396U CN 201220719603 CN201220719603 CN 201220719603 CN 201220719603 U CN201220719603 U CN 201220719603U CN 202994396 U CN202994396 U CN 202994396U
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- tightness detection
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Abstract
The utility model relates to a detection device for air-tight doors, which particularly relates to an air tightness detection device for an air-tight door of a nuclear power station under constant pressure, and belongs to the technical field of nuclear power equipment. The air tightness detection device is structurally comprises a box body, an air delivering device and an air regulating device, wherein the air delivering device and the air regulating device are communicated with the reverse side of the box body. The air tightness detection device is characterized in that the obverse side of the box body is provided with a rectangular opening, a door body to be detected is arranged at the rectangular opening, a communicating pipe between the air delivering device and the box body is internally provided with a pressure regulating valve, the air regulating device comprises a pressure transmitter, a pressure signal port of the pressure transmitter is communicated with the box body, and an electric signal end of the pressure transmitter is connected with a controlled end of the pressure regulating valve through a pressure regulator. The air tightness detection device provided by the utility model has the beneficial effects that the structure is simple, the use is convenient, and air tightness detection for the door body is effectively met under constant pressure.
Description
Technical field
The utility model relates to a kind of pick-up unit of gas-tight door, and especially the constant-voltage method air-tightness detection device of nuclear power station gas-tight door, belong to the nuclear power generating equipment technical field.
Background technology
for guaranteeing the normal operation of nuclear power station unit, China all needs just can come into operation through strict detection in the impermeability of the nuclear power station of building to gas-tight door at present, but the nuclear power station that build early stage, its supporting gas-tight door all carries out abroad by the external its corresponding tightness test of import, for the nuclear power air tight door tightness test project that has domesticized, check the air-tightness of production domesticization gas-tight door whether to satisfy the nuclear power designing requirement, the air tightness tester technology that matches with it, especially about constant voltage pick-up unit technology or blank, and not yet there is the device that is suitable for the gas-tight door air-tight test in the domestic inspection body of authorizing through country at present, therefore be badly in need of a kind of test unit that is applicable to domestic gas-tight door.
The utility model content
The technical problems to be solved in the utility model is: for the problem that above-mentioned prior art exists, propose a kind of constant-voltage method air-tightness detection device of nuclear power station gas-tight door, satisfy the impermeability testing requirement of domestic nuclear power air tight door under constant voltage.
the utility model is the technical solution problem by the following technical programs: a kind of constant-voltage method air-tightness detection device of nuclear power station gas-tight door, comprise casing, the air transport device and the conditioner that are communicated with the back side of casing, it is characterized in that: the front of described casing is provided with rectangular aperture, described rectangular aperture place settles door body to be detected, be provided with pressure-regulating valve in described air transport device and described casing connecting pipeline, described conditioner comprises pressure unit, the pressure signal port of described pressure unit is communicated with casing, and its electric signal end connects the controlled end of described pressure-regulating valve by pressure governor.
Wherein, described air transport device is made of air compressor, gas reservoir, connects described box back surface by filtering type reduction valve and gas meter.
Described box back surface is provided with pressure test device, and described pressure test device is the U-shaped pressure gauge, and an end of its opening is communicated with casing, and the other end communicates with atmosphere.So that real-time pressure value in the detection casing.
Described Men Tiyu rectangular aperture periphery to be detected has sealing joint strip.Further guarantee the sealing of air tightness tester, make the detection data more accurate.
The utility model carries out the air supplying step to the gas-tight door that is arranged on casing, coordinate simultaneously conditioner, when reaching the setting test pressure, read gas meter within a certain period of time by the amount of air, the recycling physical equation calculates the air leak rate under gas-tight door mark condition.It is simple in structure, and is easy to use, has effectively satisfied the impermeability detection of opposite house body under the constant voltage.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Embodiment
Embodiment one
The structure of the present embodiment as shown in Figure 1, the constant-voltage method air-tightness detection device of nuclear power station gas-tight door, comprise casing 1, the air transport device and the conditioner that are communicated with the back side of casing, the front of casing 1 is provided with rectangular aperture, the place settles door body 10 to be detected at rectangular aperture, be provided with pressure-regulating valve 7 in air transport device and casing 1 connecting pipeline, conditioner comprises pressure unit 5, the pressure signal port of pressure unit 5 is communicated with casing 1, and its electric signal end connects the controlled end of pressure-regulating valve 7 by pressure governor 6.Set test pressure by pressure governor 6, pressure governor 6 shows force value and the pressure-regulating valve open degree (pressure unit feeds back to pressure governor with the pressure of experimental box body with electric signal, and pressure-regulating valve is accepted the size that the pressure governor signal is opened with by-pass valve control) of casing in real time.Air transport device is made of air compressor 2, gas reservoir 3, connects the back side of casing 1 by filtering type reduction valve 4 and gas meter 8.Air compressor 2 output gases are introduced into gas reservoir 3, and the pressurized air that causes of start-stop is unstable repeatedly to avoid air compressor 2, again carries out gas filtration, step-down, voltage stabilizing by filtering type reduction valve 4 simultaneously.Also be provided with pressure test device at casing 1 back side, pressure test device is U-shaped pressure gauge 9, and an end of its opening is communicated with casing 1, and the other end communicates with atmosphere, in order to detect real-time pressure value in casing.Have sealing joint strip at door body 10 to be detected with the rectangular aperture periphery, further guarantee the sealing of air tightness tester, make the detection data more accurate.
During use, door body 10 to be detected is arranged on the openend of casing 1, with its gap of polymerization silica gel sealing.Adjust the door verticality, the moving door of hand adjustment until open freely, is fastened a body 10 for several times.Close all valves, the connection instrument power is opened air compressor 2, air is sent in gas reservoir be full of, then is opened all valves.Set the force value that needs test on pressure governor 6, for example set the force value 5000Pa of Z level, (the Z level is the 300-500mm water column pressure).pressure governor 6 shows force value and the controlled pressure variable valve open degree of casing in real time, by pressure unit 5, the pressure of casing 1 is fed back to pressure governor 6 with electric signal, pressure-regulating valve 7 feeds back to pressure governor 6 with valve opening degree with electric signal, when pressure governor 6 is in steady state (SS), the force value that namely shows reaches the test pressure value 5000pa of setting, because air flows in test pipe, so the shown setting value of pressure governor fluctuates to some extent, therefore allow in 5% fluctuation range, the force value that namely shows is between 4750-5250pa, can count.When pressure governor 6 reached setup pressure value, at this moment, the volume of air of the gas meter 8 of flowing through was the leakage rate of door, by in 5 minutes, gas meter at this moment between in twice reading V2 and V1, write down simultaneously the temperature t of this moment.Through the conversion of mark condition, draw under the 5000Pa force value, whether the leakage rate of air meets less than 10Nm
3The requirement of/h.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. the constant-voltage method air-tightness detection device of a nuclear power station gas-tight door, comprise casing, the air transport device and the conditioner that are communicated with the back side of casing, it is characterized in that: the front of described casing is provided with rectangular aperture, described rectangular aperture place settles door body to be detected, be provided with pressure-regulating valve in described air transport device and described casing connecting pipeline, described conditioner comprises pressure unit, the pressure signal port of described pressure unit is communicated with casing, and its electric signal end connects the controlled end of described pressure-regulating valve by pressure governor.
2. the constant-voltage method air-tightness detection device of nuclear power station gas-tight door according to claim 1, it is characterized in that: described air transport device is made of air compressor, gas reservoir, connects described box back surface by filtering type reduction valve and gas meter.
3. the constant-voltage method air-tightness detection device of nuclear power station gas-tight door according to claim 1, it is characterized in that: described box back surface is provided with pressure test device, described pressure test device is the U-shaped pressure gauge, and an end of its opening is communicated with casing, and the other end communicates with atmosphere.
4. the constant-voltage method air-tightness detection device of nuclear power station gas-tight door according to claim 1, it is characterized in that: described Men Tiyu rectangular aperture periphery to be detected has sealing joint strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719603 CN202994396U (en) | 2012-06-15 | 2012-12-24 | Air tightness detection device for air-tight door of nuclear power station under constant pressure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220282007 | 2012-06-15 | ||
| CN201220282007.3 | 2012-06-15 | ||
| CN 201220719603 CN202994396U (en) | 2012-06-15 | 2012-12-24 | Air tightness detection device for air-tight door of nuclear power station under constant pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994396U true CN202994396U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220719603 Expired - Fee Related CN202994396U (en) | 2012-06-15 | 2012-12-24 | Air tightness detection device for air-tight door of nuclear power station under constant pressure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439066A (en) * | 2013-09-07 | 2013-12-11 | 安徽人防设备有限公司 | Full-automatic airtight detection machine for civil air defense device |
| CN104266805A (en) * | 2014-10-28 | 2015-01-07 | 中国核工业华兴建设有限公司 | Detection device and detection method for detecting air tightness of air-tight door of nuclear power plant by using constant pressure method |
| CN104502038A (en) * | 2014-12-18 | 2015-04-08 | 清华大学 | System and method for measuring air leakage rate of contact interface of sealing element |
| CN105241616A (en) * | 2015-09-24 | 2016-01-13 | 安徽钟南人防工程防护设备有限公司 | Civil defense door airtightness detection apparatus with protection function |
| CN105277322A (en) * | 2015-09-24 | 2016-01-27 | 安徽钟南人防工程防护设备有限公司 | Civil air defence door airtightness detection device |
| CN105486470A (en) * | 2016-01-21 | 2016-04-13 | 湖州南浔双林振森实木加工厂 | Floor ammonia fume device with sealing detection function |
| CN106404316A (en) * | 2016-08-30 | 2017-02-15 | 承德市精密试验机有限公司 | Plastic pipe sealing performance experiment device |
| CN108152061A (en) * | 2017-12-26 | 2018-06-12 | 广州广电计量检测股份有限公司 | side window pressure detecting system and method |
| CN112326149A (en) * | 2020-10-31 | 2021-02-05 | 江苏华洋新思路能源装备股份有限公司 | Large-scale high temperature gas tightness test device |
| CN112774456A (en) * | 2020-12-18 | 2021-05-11 | 武汉艾科滤膜技术有限公司 | Gas detection device and method for ultrafiltration membrane |
-
2012
- 2012-12-24 CN CN 201220719603 patent/CN202994396U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439066A (en) * | 2013-09-07 | 2013-12-11 | 安徽人防设备有限公司 | Full-automatic airtight detection machine for civil air defense device |
| CN104266805B (en) * | 2014-10-28 | 2016-12-07 | 中国核工业华兴建设有限公司 | Constant-voltage method detection nuclear power station gas-tight door bubble-tight detection device and detection method thereof |
| CN104266805A (en) * | 2014-10-28 | 2015-01-07 | 中国核工业华兴建设有限公司 | Detection device and detection method for detecting air tightness of air-tight door of nuclear power plant by using constant pressure method |
| CN104502038A (en) * | 2014-12-18 | 2015-04-08 | 清华大学 | System and method for measuring air leakage rate of contact interface of sealing element |
| CN104502038B (en) * | 2014-12-18 | 2017-06-13 | 清华大学 | A kind of measuring system and method for seal contact interface released gas rate |
| CN105241616A (en) * | 2015-09-24 | 2016-01-13 | 安徽钟南人防工程防护设备有限公司 | Civil defense door airtightness detection apparatus with protection function |
| CN105277322A (en) * | 2015-09-24 | 2016-01-27 | 安徽钟南人防工程防护设备有限公司 | Civil air defence door airtightness detection device |
| CN105486470A (en) * | 2016-01-21 | 2016-04-13 | 湖州南浔双林振森实木加工厂 | Floor ammonia fume device with sealing detection function |
| CN106404316A (en) * | 2016-08-30 | 2017-02-15 | 承德市精密试验机有限公司 | Plastic pipe sealing performance experiment device |
| CN106404316B (en) * | 2016-08-30 | 2019-10-08 | 承德市精密试验机有限公司 | A kind of plastic pipe leakproofness experimental provision |
| CN108152061A (en) * | 2017-12-26 | 2018-06-12 | 广州广电计量检测股份有限公司 | side window pressure detecting system and method |
| CN112326149A (en) * | 2020-10-31 | 2021-02-05 | 江苏华洋新思路能源装备股份有限公司 | Large-scale high temperature gas tightness test device |
| CN112774456A (en) * | 2020-12-18 | 2021-05-11 | 武汉艾科滤膜技术有限公司 | Gas detection device and method for ultrafiltration membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20211224 |