CN104697579B - Cryogenic container comprehensive performance detecting device - Google Patents
Cryogenic container comprehensive performance detecting device Download PDFInfo
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- CN104697579B CN104697579B CN201510069348.0A CN201510069348A CN104697579B CN 104697579 B CN104697579 B CN 104697579B CN 201510069348 A CN201510069348 A CN 201510069348A CN 104697579 B CN104697579 B CN 104697579B
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- vacuum
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Abstract
The invention provides a cryogenic container comprehensive performance detecting device which comprises a control system and a vacuum pump set. The control system is in signal connection with two vacuum gauges, a mass spectrometer and a flow meter respectively, one vacuum gauge is connected with the mass spectrometer, and the flow meter is connected with a flow measuring interface. The vacuum pump set is connected with one end of a third vacuum valve and one end of a vacuum fine-adjustment valve, and the other end of the vacuum fine-adjustment valve is connected with the second vacuum gauge. The other end of the third vacuum valve is connected with one end of a first vacuum valve and one end of a second vacuum valve respectively, the other end of the first vacuum valve is connected with a standard leakage hole, and the other end of the second vacuum valve is connected with a vacuum measuring interface. The cryogenic container comprehensive performance detecting device integrates state-specified cryogenic container type experiment, periodic inspection and comprehensive performance testing, the utilization rate of the device is improved, automatic testing is achieved, artificial interference on operating process is decreased, and automatic data storage and intelligent processing are achieved.
Description
Technical field
The invention belongs to low-temperature (low temperature) vessel detection technique field, it is related to a kind of low-temperature (low temperature) vessel testing equipment, it is more particularly to a kind of
Low-temperature (low temperature) vessel combination property testing equipment, the combination property for testing low temperature vacuum thermal insulation container, can complete low-temperature (low temperature) vessel
The test of vacuum, leak rate, glomus mosseae, gas composition analysis, static evaporation rate and leak detection.
Background technology
With the fast development of domestic cryogenic liquid industry, the especially development of LNG industries, strong promotion is domestic low
The development of warm container, needs to carry out type experiment during low-temperature (low temperature) vessel use and regular inspection measurement equipment works.Low-temperature (low temperature) vessel synthesis
Performance detection apparatus can complete low-temperature (low temperature) vessel all-round property testing according to the requirement of GB, it is ensured that using for such product is safe
With life safety.
The content of the invention
It is an object of the invention to provide a kind of low-temperature (low temperature) vessel combination property testing equipment, the vacuum for detecting low-temperature (low temperature) vessel
Degree, leak rate, glomus mosseae, gas composition analysis, static evaporation rate and leak detection.
To achieve the above object, the technical solution adopted in the present invention is：A kind of low-temperature (low temperature) vessel combination property testing equipment,
Including control system and vacuum pump group, control system respectively with the first vacuum gauge, the second vacuum gauge, mass spectrograph and flow meter signal
Connection, the first vacuum gauge is connected with mass spectrograph, and flowmeter is connected with flow measurement interface；Vacuum pump group is true with the 3rd respectively
One end of empty valve is connected with one end of vacuum miniature regulating valve, the second vacuum gauge other end respectively with vacuum miniature regulating valve,
One end of one end of the second vacuum valve, the other end of the 3rd vacuum valve and the first vacuum valve is connected；First vacuum valve
The other end of door is connected with referance leak, and the other end of the second vacuum valve is connected with vacuum measurement interface；Vacuum pump group,
The tie point of the 3rd vacuum valve and vacuum miniature regulating valve is connected with the first vacuum gauge and mass spectrometric tie point.
Testing equipment of the present invention advantage compared with prior art is：By the low-temperature (low temperature) vessel type experiment of national regulation,
Periodic inspection and all-round property testing are integrated in an instrument, are tested using intelligentized control flow, are reduced artificial
Interference in operating process, realizes the automatic storage and Intelligent treatment of data.The testing equipment has been concentrated originally many tests
Low-temperature (low temperature) vessel type experiment, regular inspection inspection and combination property detection that equipment is completed, improve the utilization rate of equipment, realize certainly
Dynamicization is tested, lightweight with small volume, the features such as simple to operate, while also effectively reducing the labour intensity of tester.
Brief description of the drawings
Fig. 1 is the structural representation of testing equipment of the present invention.
In figure：1. control system, 2. the first vacuum gauge, 3. referance leak, 4. the second vacuum gauge, 5. the first vacuum valve,
6. vacuum measurement interface, 7. the second vacuum valve, 8. flow measurement interface, 9. flowmeter, 10. vacuum miniature regulating valve, 11. the 3rd
Vacuum valve, 12. mass spectrographs, 13. vacuum pump groups.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, testing equipment of the present invention, including control system 1 and vacuum pump group 13, control system 1 is respectively with
One vacuum gauge 2, the second vacuum gauge 4, mass spectrograph 12 and the signal of flowmeter 9 connection, the first vacuum gauge 2 are connected with mass spectrograph 12,
Flowmeter 9 is connected with flow measurement interface 8；The one end respectively with the 3rd vacuum valve 11 of vacuum pump group 13 and vacuum fine adjustment valve
One end of door 10 is connected, and the other end of vacuum miniature regulating valve 10 is connected with the second vacuum gauge 4；3rd vacuum valve 11 it is another
One end is connected with one end of the first vacuum valve 5 and one end of the second vacuum valve 7 respectively, the first vacuum valve 5 it is another
End is connected with referance leak 3, and the other end of the second vacuum valve 7 is connected with vacuum measurement interface 6.Control system 1 is also divided
It is not connected with the first vacuum valve 5, the second vacuum valve 7, vacuum miniature regulating valve 10 and the signal of the 3rd vacuum valve 11.
Control system 1, for controlling the first vacuum valve 5, the second vacuum valve 7, vacuum miniature regulating valve 10, the 3rd vacuum
The open and close of valve 11, the first vacuum gauge 2, the second vacuum gauge 4, flowmeter 9, mass spectrograph 12 and vacuum pump group 13；For
The measurement data that the first vacuum gauge 2, the second vacuum gauge 4, flowmeter 9 and mass spectrograph 12 are produced during collecting test, and according to
Measurement data calculates corresponding measurement result data, and result data is shown by display screen, while storing the survey of collection
Amount data and the result data being calculated.
When carrying out all-round property testing to low-temperature (low temperature) vessel：By pipeline by vacuum measurement interface 6 and low-temperature (low temperature) vessel to be tested
（Detected pieces）Vacuum interlayer interface is connected, and starts 13 pairs of this testing equipment inside of vacuum pump group and connecting pipe is evacuated, and makes to reach
After certain vacuum, vacuum, leak rate, glomus mosseae, gas composition analysis and leak detection test are carried out；Specific testing process
It is as follows：
In vacuum monitor, the measurement of pipeline glomus mosseae is attached first, the 3rd vacuum valve is closed in test
11, the numerical value of the second vacuum gauge 4 is recorded, 1 time/min of the frequency is recorded, record 5 times, after pipeline glomus mosseae meets requirement, beat
Open the 3rd vacuum valve 11 to evacuate again, after reaching requirement, close the 3rd vacuum valve 11, open manually-operated gate（Measured piece）Survey
Amount vacuum, start recording after numerical stability records 1 time/min of the frequency, records 5 times, shows result after being calculated through control system 1
Show on the display screen of control system 1.The 3rd vacuum valve 11 is opened after the completion of test, manually-operated gate is closed（Measured piece）.
In leakage rate measurement, the first vacuum valve 5 is first turned on, starts mass spectrograph 12, the helium partial pressure of testing standard small opening 3
Afterwards, mass spectrograph 12 is closed；The first vacuum valve 5 is then shut off, restarts mass spectrograph 12, test system background helium partial pressure is closed
Mass spectrograph 12, computing equipment test background leak rate；Open the first vacuum valve 5 and manually-operated gate（Measured piece）, start mass spectrograph
12, the helium partial pressure of testing standard small opening 3 closes mass spectrograph 12；The first vacuum valve 5 is then shut off, starts mass spectrograph 12, test
System background helium partial pressure, closes mass spectrograph 12, computing system test background leak rate；To low-temperature (low temperature) vessel（Detected pieces）Wrap helium
Cover, is filled with helium（Concentrations of helium is more than 10% in helium cover）, after helium fully spreads, start mass spectrograph 12, test system helium
Partial pressure, closes mass spectrograph 12, computing system test leak rate；Helium cover is opened, helium is bled off, start mass spectrograph 12, repetition measurement system
System helium partial pressure, closes mass spectrograph 12, calculates retest system test leak rate, includes in control result after being calculated through control system 1
On the display screen of system 1.Manually-operated gate is closed after the completion of test（Measured piece）.
In glomus mosseae test, the measurement of pipeline glomus mosseae is attached first, the 3rd vacuum is closed in test
Valve 11, records the numerical value of the second vacuum gauge 4, records 1 time/min of the frequency, records 5 times.Pipeline glomus mosseae meets requirement
Afterwards, open the 3rd vacuum valve 11 to evacuate again, after reaching requirement, close the 3rd vacuum valve 11, open manually-operated gate（It is tested
Part）Measurement of vacuum, start recording after numerical stability records 1 time/min of the frequency, records 5 times, closes manually-operated gate（It is tested
Part）, the 3rd vacuum valve 11 is opened, obtain first time measurement of vacuum value；After 2 hours, the 3rd vacuum valve 11, record are closed
The numerical value of the second vacuum gauge 4, records 1 time/min of the frequency, records 5 times.After pipeline glomus mosseae meets requirement, the 3rd is opened true
Empty valve 11 is evacuated again, after reaching requirement, closes the 3rd vacuum valve 11, opens manually-operated gate（Measured piece）Measurement vacuum
Degree, start recording after numerical stability records 1 time/min of the frequency, records 5 times, closes manually-operated gate（Detected pieces）, open the 3rd true
Empty valve 11, obtains second measurement of vacuum value；Glomus mosseae is calculated according to vacuometer is measured twice, result is shown
On the display screen of control system 1.
In gas composition analysis test process, the 3rd vacuum valve 11 is closed, open manually-operated gate（Detected pieces）, regulation is very
Empty fine tuning valve 10 so that the numerical stability of the display of the first vacuum gauge 2 starts mass spectrograph 12 and tested in 5.0E-3Pa, surveys
Gas componant, partial pressure, the percentages show test result that will be measured after the completion of examination are on the display screen of control system 1.
In leak detection test process, the 3rd vacuum valve 11 is closed, open manually-operated gate（Detected pieces）, adjust vacuum fine adjustment valve
Door 10 so that the numerical stability of the display of the first vacuum gauge 2 starts mass spectrograph 12 and tested in 5.0E-3Pa, is connected in test
The place spray volumetric concentration that pipeline or container there may be gas leakage is more than 90% helium, and observation display screen shows the change of numerical value
Change, determine leak source, close manually-operated gate（Detected pieces）, mass spectrograph 12 is closed, test is exited in test completion.
In static evaporation rate test, by flow rate test interface 8 and low-temperature (low temperature) vessel（Detected pieces）Deflation interface links together,
Start gas mass flow gauge 9, start measurement, control system 1 gathers the data of gas mass flow gauge 9, and in control system 1
Screen on show, and by the computing of control system 1, detected pieces static evaporation rate is provided on the screen of control system 1.
In above-mentioned test process, in addition to the valve of application carries out normal opening and closing, remaining valve do not used
Door is in closed mode.
Complete to click on after all tests to log off, after on-screen display system exit successfully afterwards power off.
Evacuation system provides measuring environment, and measurement original paper is measured, and guarantee of power testing equipment device power inside is former
The power supply of part, control system controls the work of all consuming parts.Test is completed eventually through the co-ordination between each part to appoint
Business.
Claims (3)
1. a kind of low-temperature (low temperature) vessel combination property testing equipment, it is characterised in that including control system（1）And vacuum pump group（13）,
Control system（1）Respectively with the first vacuum gauge（2）, the second vacuum gauge（4）, mass spectrograph（12）And flowmeter（9）Signal is connected, the
One vacuum gauge（2）With mass spectrograph（12）It is connected, flowmeter（9）With flow measurement interface（8）It is connected；Vacuum pump group（13）Point
Not with the 3rd vacuum valve（11）One end and vacuum miniature regulating valve（10）One end be connected, the second vacuum gauge（4）Respectively with
Vacuum miniature regulating valve（10）The other end, the second vacuum valve（7）One end, the 3rd vacuum valve（11）The other end and first
Vacuum valve（5）One end be connected；First vacuum valve（5）The other end and referance leak（3）It is connected, the second vacuum valve
Door（7）The other end and vacuum measurement interface（6）It is connected；Vacuum pump group（13）, the 3rd vacuum valve（11）Finely tuned with vacuum
Valve（10）Tie point and the first vacuum gauge（2）And mass spectrograph（12）Tie point be connected.
2. low-temperature (low temperature) vessel combination property testing equipment according to claim 1, it is characterised in that described control system
（1）, for the first vacuum gauge during collecting test（2）, the second vacuum gauge（4）, flowmeter（9）And mass spectrograph（12）Produce
Measurement data, and corresponding measurement result data are calculated according to measurement data, result data is shown by display screen.
3. low-temperature (low temperature) vessel combination property testing equipment according to claim 1 and 2, it is characterised in that described control system
System（1）Also respectively with the first vacuum valve（5）, the second vacuum valve（7）, vacuum miniature regulating valve（10）With the 3rd vacuum valve
（11）Signal is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510069348.0A CN104697579B (en) | 2015-02-10 | 2015-02-10 | Cryogenic container comprehensive performance detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510069348.0A CN104697579B (en) | 2015-02-10 | 2015-02-10 | Cryogenic container comprehensive performance detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104697579A CN104697579A (en) | 2015-06-10 |
| CN104697579B true CN104697579B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510069348.0A Expired - Fee Related CN104697579B (en) | 2015-02-10 | 2015-02-10 | Cryogenic container comprehensive performance detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104697579B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110907151B (en) * | 2019-10-23 | 2021-09-03 | 张家港富瑞特种装备股份有限公司 | Method for measuring and calculating relationship between vacuum degree of low-temperature gas cylinder and daily evaporation rate and adsorption capacity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188543A (en) * | 1995-06-21 | 1998-07-22 | 莱博尔德真空技术有限责任公司 | Leak detector with back-up pump |
| CN101710017A (en) * | 2009-12-17 | 2010-05-19 | 中国航天科技集团公司第五研究院第五一○研究所 | Leak detection device and method of vacuum system |
| CN102721515A (en) * | 2012-06-27 | 2012-10-10 | 上海裕达实业公司 | Device and method for detecting whole satellite leak rate of satellite |
| CN202501952U (en) * | 2012-02-06 | 2012-10-24 | 江苏东方航天校准检测有限公司 | Portable multifunctional vacuum calibrating device |
| CN103308250A (en) * | 2013-04-24 | 2013-09-18 | 兰州空间技术物理研究所 | Device for detecting vacuum performance of low-temperature and heat-insulating pressure container |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0560645A (en) * | 1991-09-05 | 1993-03-12 | Mitsubishi Electric Corp | Multi-purpose inspection and gas analysis apparatus for vacuum system |
-
2015
- 2015-02-10 CN CN201510069348.0A patent/CN104697579B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188543A (en) * | 1995-06-21 | 1998-07-22 | 莱博尔德真空技术有限责任公司 | Leak detector with back-up pump |
| CN101710017A (en) * | 2009-12-17 | 2010-05-19 | 中国航天科技集团公司第五研究院第五一○研究所 | Leak detection device and method of vacuum system |
| CN202501952U (en) * | 2012-02-06 | 2012-10-24 | 江苏东方航天校准检测有限公司 | Portable multifunctional vacuum calibrating device |
| CN102721515A (en) * | 2012-06-27 | 2012-10-10 | 上海裕达实业公司 | Device and method for detecting whole satellite leak rate of satellite |
| CN103308250A (en) * | 2013-04-24 | 2013-09-18 | 兰州空间技术物理研究所 | Device for detecting vacuum performance of low-temperature and heat-insulating pressure container |
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| CN104697579A (en) | 2015-06-10 |
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