CN208568194U - The system that helium and pressure combine multiple autonomous devices of hunting leak parallel - Google Patents
The system that helium and pressure combine multiple autonomous devices of hunting leak parallel Download PDFInfo
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- CN208568194U CN208568194U CN201821356065.XU CN201821356065U CN208568194U CN 208568194 U CN208568194 U CN 208568194U CN 201821356065 U CN201821356065 U CN 201821356065U CN 208568194 U CN208568194 U CN 208568194U
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Abstract
The utility model discloses the systems that a kind of helium and pressure combine multiple autonomous devices of hunting leak parallel, are related to equipment leak hunting technology field.It include: pressure-detecting device, helium leakage detecting device, helium gas source, collecting chamber and gas sampling assembly, the helium leakage detecting device includes orthobaric volume device, in use, the pressure difference between two adjacent autonomous devices is measured by pressure-detecting device, total leakage indicated value and reference value are measured by helium leakage detecting device.So can obtain the data for calculating each autonomous device leak rate using system provided by the embodiment of the utility model, provide data supporting for it.Due to having only used a kind of search gas of helium during leak detection, the high sensitivity of helium is not only utilized, but also avoid the use of other search gas, reduces the complexity of leak test plant and ground support, reduce leak detection cost.Furthermore, however, it would be possible to which the unlimited quantity for increasing autonomous device, scalability are more preferable.
Description
Technical field
The utility model relates to equipment leak hunting technology field more particularly to a kind of helium and pressure joint hunt leak parallel it is multiple
The system of autonomous device.
Background technique
Currently, requiring in fields such as aerospace, petrochemical industry, thermal technology's refrigeration using the stronger equipment of leakproofness.This
A little equipment when in use, the considerations of for function, performance, safety, service life etc., need to carry out leak detection work to it,
Detect its leak rate whether meet demand.
To the biggish equipment of volume, in special dimension, especially space industry, the general side for using helium mass spectrum leak detection
Tested equipment is placed in a bigger collecting chamber by method, be used as inspection to the helium for being filled with certain pressure in tested equipment
Gas is surveyed, is accumulated by the leakage of certain time, samples and use corresponding gas detection devices in collecting chamber, as helium mass spectrum is examined
Instrument is leaked, the leak rate of equipment is detected and calculate.
In the special equipment in part, often there are multiple autonomous devices disconnected with each other, these regions are being accumulated
When leak detection, if can not be carried out simultaneously using single helium.If Integrating dosemeters respectively, require a great deal of time.
At present in space industry, in order to reduce the leak detection time, the method often analyzed simultaneously using multiple gases is independently set to different
It is standby that different detection gas are added, in addition to helium, neon, Krypton, carbon tetrafluoride etc. can also be used, by letting out for same time
After leakage accumulation, after collecting chamber sampling, it will be carried out containing the sampling there are many detection gas using specific multiple gas analyser
Detection, and calculate the leak rate of each autonomous device.This method has some disadvantages, first is that the detection device of multiple gases compared with
Helium mass spectrometer leak detector is expensive, and maintenance cost is high；Second is that the detection sensitivity of helium is best in all detection gas,
Technology is the most mature, and other detection gas are not so good as helium；Third is that the price of neon, Krypton, carbon tetrafluoride is high compared to helium,
The higher cost when hunting leak to large scale equipment, and will increase additional maintenance, carrying cost.In addition, multiple gases analysis side
The leak detection of method is limited to the type of search gas, and selectable search gas is limited in gas analysis leak detection, therefore can examine simultaneously
The autonomous device quantity of survey is also limited.
Utility model content
It hunts leak parallel the systems of multiple autonomous devices the purpose of this utility model is to provide a kind of helium and pressure joint,
To solve foregoing problems existing in the prior art.
To achieve the goals above, the technical solution adopted in the utility model is as follows:
A kind of helium and pressure joint are hunted leak the systems of multiple autonomous devices parallel, comprising: pressure-detecting device, helium inspection
Leaking equipment, helium gas source, collecting chamber and gas sampling assembly, the helium leakage detecting device includes orthobaric volume device；
The helium gas source can be connected to multiple autonomous devices, fill helium for each autonomous device；
The pressure-detecting device includes multiple differential manometers, and an institute is equipped between two adjacent autonomous devices
State differential manometer；
After the autonomous device charges helium, it is placed in the collecting chamber,
One end of the gas sampling assembly is connect with the collecting chamber, the other end of the gas sampling assembly with it is described
Helium leakage detecting device connection,
The orthobaric volume device is connect with the collecting chamber.
Preferably, the helium gas source can be connected to multiple autonomous devices, specifically, the helium gas source and the independence
Equipment connects, and passes through auxiliary hose between two adjacent autonomous devices and connects.
Preferably, the helium gas source includes: helium tank and vacuum pump, the helium tank and the vacuum pump respectively with institute
State autonomous device connection, be disposed on the connecting line of the helium tank and the autonomous device source of the gas valve, pressure regulator valve and
Vacuum valve is provided on the connecting line of charge valve, the vacuum pump and the autonomous device.
Preferably, the pressure-detecting device further includes power supply and data acquisition components, the power supply and data acquisition group
Part is separately connected with each differential manometer.
Preferably, the helium leakage detecting device uses helium mass spectrum leak detection equipment.
Preferably, the helium mass spectrum leak detection equipment further include: helium mass spectrometer leak detector and power supply and data acquisition components standard
Device in volume；It is described power supply and data acquisition components connect with the helium mass spectrometer leak detector, the helium mass spectrometer leak detector with it is described
Gas sampling assembly connection, and leak detector valve is provided on connecting line.
Preferably, the gas sampling assembly includes pumping cycle pump, one end of the pumping cycle pump and the collection
The other end of room connection, the pumping cycle pump is connect with the helium leakage detecting device.
Preferably, the collecting chamber includes: the collection cavity and convection device for having preferable air-proof condition, the convection current dress
It sets and is mounted in the collecting chamber.
Preferably, the collection cavity includes special building, large sealing tank or large-scale flexible package.
Preferably, the convection device is fan.
The beneficial effects of the utility model are: helium provided by the embodiment of the utility model and the parallel leak detection of pressure joint are more
The system of a autonomous device, comprising: pressure-detecting device, helium leakage detecting device, helium gas source, collecting chamber and gas sampling assembly,
The helium leakage detecting device includes orthobaric volume device, in use, by pressure-detecting device measure two it is adjacent solely
The pressure difference between standby is erected, total leakage indicated value and reference value are measured by helium leakage detecting device.So practical new using this
The system that type embodiment provides, can obtain the data for calculating each autonomous device leak rate, provide data supporting for it.Due to
A kind of search gas of helium has been only used during leak detection, the high sensitivity of helium is not only utilized, but also avoids other
The use of search gas reduces the complexity of leak test plant and ground support, reduces leak detection cost.In addition, in principle may be used
Infinitely to increase the quantity of autonomous device, scalability is more preferable.
Detailed description of the invention
Fig. 1 is system leak detection process attachment structure schematic diagram provided by the utility model；
Fig. 2 is to fill helium attachment structure schematic diagram before system provided by the utility model is hunted leak；
Fig. 3 is system leak hunting method flow diagram provided by the utility model.
In figure, the meaning of each symbol is as follows:
1 pressure-detecting device, 2 helium leakage detecting devices, 3 helium gas sources, 4 collecting chambers, 5 gas sampling assemblies, 6 autonomous devices, 7
Differential manometer, 8 auxiliary hoses, 9 helium tanks, 10 vacuum pumps, 11 source of the gas valve, 12 pressure regulator valves, 13 charge valves, 14 vacuum valves, 15 helium matter
Compose leak detector, 16 orthobaric volume devices, 17 leak detector valves, 18 pumping cycles pump, 19 fans, 20 volumetric valves.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.It should be appreciated that the specific embodiments described herein are only used to explain that this is practical
It is novel, it is not used to limit the utility model.
As shown in Figs. 1-2, the utility model embodiment provides a kind of helium and pressure joint is hunted leak multiple independences parallel
The system of equipment, comprising: pressure-detecting device 1, helium leakage detecting device 2, helium gas source 3, collecting chamber 4 and gas sampling assembly 5, institute
Stating helium leakage detecting device 2 includes orthobaric volume device 16；
The helium gas source 3 can be connected to multiple autonomous devices 6, fill helium for each autonomous device 6；
The pressure-detecting device 1 includes multiple differential manometers 7, is equipped with one between two adjacent autonomous devices 6
A differential manometer 7；
After the autonomous device 6 charges helium, it is placed in the collecting chamber 4,
One end of the gas sampling assembly 5 is connect with the collecting chamber 4, the other end of the gas sampling assembly 5 with
The helium leakage detecting device 2 connects,
The orthobaric volume device 16 is connect with the collecting chamber 4.
The course of work of above structure may refer to shown in Fig. 3, specifically:
Firstly, being connected to each autonomous device using auxiliary hose, then autonomous device is vacuumized, is re-filled with high-pure helium
Gas, is then turned off auxiliary hose, and the pressure between each autonomous device is consistent.Differential manometer is connected between autonomous device, will be pressed
Power supply, the signal wire etc. of difference meter connect, and will entirely be detected equipment (including multiple autonomous devices) and be put into closed collecting chamber, and beat
Gas sampling assembly and helium leakage detecting device are opened, the background values of system is obtained.
After leakage accumulation certain time, the pressure difference of each difference gauge is recorded.Then gas sampling assembly and helium are opened
Gas leak test plant obtains tested equipment (including multiple autonomous devices) total leakage indicated value after stable reading.
Orthobaric volume device is opened, gas sampling assembly and helium leakage detecting device is opened, obtains reference value after stable reading.
The leak rate of each autonomous device can be calculated according to each numerical value detected.
So can be obtained using system provided by the embodiment of the utility model for calculating each autonomous device leak rate
Data provide data supporting for it.Due to having only used a kind of search gas of helium during leak detection, helium is not only utilized
High sensitivity, and avoid the use of other search gas, reduce leak test plant and complexity that ground is supported, reduce
Leak detection cost.In addition, common multiple gases analyze leak hunting method, the search gas of support is limited, therefore can hunt leak simultaneously
Number of devices it is limited；And what parallel leak detection multiple equipment was used in combination in helium provided by the utility model and pressure detecting is
System, however, it would be possible to which the unlimited quantity for increasing autonomous device, scalability are more preferable.
In a preferred embodiment of the utility model, the helium gas source 3 can be connected to multiple autonomous devices 6, specifically
It can be that the helium gas source 3 is connect with an autonomous device 6, pass through auxiliary between two adjacent autonomous devices 6
Hose 8 connects.
Using the above structure, can when needing to fill helium for each autonomous device, two adjacent autonomous devices it
Between connect auxiliary hose, so that it may easily readily realize connection between each autonomous device and helium gas source, and when not needing
When filling helium, then volume can easily can readily realize each autonomous device and helium by the connection of disconnection auxiliary hose
Disconnection between source.Compared with using fixed pipeline, this structure is more convenient to use, and realization, which is connected and disconnected from, more to be held
Easily.
In the present embodiment, the helium gas source 3 may include: helium tank 9 and vacuum pump 10, the helium tank 9 with it is described true
Sky pump 10 is connect with the autonomous device 6 respectively, and the helium tank 9 can be successively on 6 standby connecting lines with described independently set
Be provided with source of the gas valve 11, pressure regulator valve 12 and charge valve 13, the vacuum pump 10 with can be on the connecting line of the autonomous device 6
It is provided with vacuum valve 14.
Using the above structure, it is ensured that helium gas source can accurately adjust outlet helium pressure, and guarantee is independently set to each
The standby gas for being filled with accurate pressure.
In one preferred embodiment of the utility model, the pressure-detecting device 1 can also include that power supply and data are adopted
Collect component, the power supply and data acquisition components are separately connected with each differential manometer 7.
Using the above structure, the acquisition counted to each pressure difference may be implemented, and then data collection and analysis may be implemented
Automation.
In the present embodiment, the helium leakage detecting device 2 can use helium mass spectrum leak detection equipment.
In the present embodiment, the helium mass spectrum leak detection equipment can also include: that helium mass spectrometer leak detector 15 and power supply and data are adopted
Collect component；The power supply and data acquisition components are connect with the helium mass spectrometer leak detector 15, the helium mass spectrometer leak detector 15 and institute
The connection of gas sampling assembly 5 is stated, and is provided with leak detector valve 17 on connecting line.
Gas sampling assembly provides sampling to helium mass spectrometer leak detector, passes through helium mass spectrometer leak detector pair after collecting chamber sampling
Sampling is detected, and after leakage accumulation certain time is sampled and hunted leak, then opens orthobaric volume device, gas sampling assembly and helium
Gas leak test plant obtains reference value after stable reading.It can detecte the slip of each autonomous device by the equipment.
In the present embodiment, the gas sampling assembly 5 includes pumping cycle pump 18, one end of pumping cycle pump 18 with
The collecting chamber 4 connects, and the other end of the pumping cycle pump 18 is connect with the helium leakage detecting device 2.
In the present embodiment, the collecting chamber 4 may include: the collection cavity and convection device for having preferable air-proof condition,
The convection device is mounted in the collecting chamber 4.
Wherein, the collection cavity may include special building, large sealing tank or large-scale flexible package.
The convection device can be fan 19.
Using the above structure, it can both guarantee the leakproofness of collecting chamber, it is also ensured that by the biggish tested equipment of volume,
It may include multiple mutually disconnected autonomous devices to be put into the cavity of collecting chamber, device for flow in the cavities can also be passed through
Device guarantees that the search gas leaked out does not diffuse into the part other than collecting chamber, while guaranteeing that collection indoor gas is equal
It is even.
By using above-mentioned technical proposal disclosed by the utility model, following beneficial effect: the utility model has been obtained
Helium and pressure that embodiment provides combine the system for multiple autonomous devices of hunting leak parallel, comprising: pressure-detecting device, helium inspection
Leaking equipment, helium gas source, collecting chamber and gas sampling assembly, the helium leakage detecting device includes orthobaric volume device, is being used
Cheng Zhong measures the pressure difference between two adjacent autonomous devices by pressure-detecting device, is measured by helium leakage detecting device total
Leak indicated value and reference value.So can be obtained using system provided by the embodiment of the utility model for calculating each independence
The data of equipment leak rate provide data supporting for it.Due to having only used a kind of search gas of helium during leak detection, not only
The high sensitivity of helium is utilized, and avoids the use of other search gas, reduces what leak test plant and ground were supported
Complexity reduces leak detection cost.Furthermore, however, it would be possible to which the unlimited quantity for increasing autonomous device, scalability are more preferable.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching should also regard the protection scope of the utility model.
Claims (10)
- A kind of system of multiple autonomous devices 1. helium and pressure joint are hunted leak parallel characterized by comprising pressure detecting dress It sets, helium leakage detecting device, helium gas source, collecting chamber and gas sampling assembly, the helium leakage detecting device include orthobaric volume device；The helium gas source can be connected to multiple autonomous devices, fill helium for each autonomous device；The pressure-detecting device includes multiple differential manometers, and the pressure is equipped between two adjacent autonomous devices Difference meter；After the autonomous device charges helium, it is placed in the collecting chamber,One end of the gas sampling assembly is connect with the collecting chamber, the other end of the gas sampling assembly and the helium Leak test plant connection,The orthobaric volume device is connect with the collecting chamber.
- The system of multiple autonomous devices 2. helium according to claim 1 and pressure joint are hunted leak parallel, which is characterized in that The helium gas source can be connected to multiple autonomous devices, specifically, the helium gas source is connect with an autonomous device, two phases It is connected between the adjacent autonomous device by auxiliary hose.
- The system of multiple autonomous devices 3. helium according to claim 2 and pressure joint are hunted leak parallel, which is characterized in that The helium gas source includes: helium tank and vacuum pump, and the helium tank is connect with the autonomous device respectively with the vacuum pump, Source of the gas valve, pressure regulator valve and charge valve, the vacuum are disposed on the connecting line of the helium tank and the autonomous device Vacuum valve is provided on pump and the connecting line of the autonomous device.
- The system of multiple autonomous devices 4. helium according to claim 1 and pressure joint are hunted leak parallel, which is characterized in that The pressure-detecting device further includes power supply and data acquisition components, the power supply and data acquisition components and each pressure difference Meter is separately connected.
- The system of multiple autonomous devices 5. helium according to claim 1 and pressure joint are hunted leak parallel, which is characterized in that The helium leakage detecting device uses helium mass spectrum leak detection equipment.
- The system of multiple autonomous devices 6. helium according to claim 5 and pressure joint are hunted leak parallel, which is characterized in that The helium mass spectrum leak detection equipment further include: helium mass spectrometer leak detector and power supply and data acquisition components orthobaric volume device；The confession Electricity and data acquisition components are connect with the helium mass spectrometer leak detector, and the helium mass spectrometer leak detector and the gas sampling assembly connect It connects, and is provided with leak detector valve on connecting line.
- The system of multiple autonomous devices 7. helium according to claim 1 and pressure joint are hunted leak parallel, which is characterized in that The gas sampling assembly includes pumping cycle pump, and one end of the pumping cycle pump is connect with the collecting chamber, the pumping The other end of circulating pump is connect with the helium leakage detecting device.
- The system of multiple autonomous devices 8. helium according to claim 1 and pressure joint are hunted leak parallel, which is characterized in that The collecting chamber includes: the collection cavity and convection device for having preferable air-proof condition, and the convection device is mounted on the receipts Collection is indoor.
- The system of multiple autonomous devices 9. helium according to claim 8 and pressure joint are hunted leak parallel, which is characterized in that The collection cavity includes special building, large sealing tank or large-scale flexible package.
- The system of multiple autonomous devices 10. helium according to claim 8 and pressure joint are hunted leak parallel, feature exist In the convection device is fan.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760182A (en) * | 2018-08-22 | 2018-11-06 | 中国科学院空间应用工程与技术中心 | The system and method that helium and pressure combine multiple autonomous devices of hunting leak parallel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760182A (en) * | 2018-08-22 | 2018-11-06 | 中国科学院空间应用工程与技术中心 | The system and method that helium and pressure combine multiple autonomous devices of hunting leak parallel |
| CN108760182B (en) * | 2018-08-22 | 2023-12-29 | 中国科学院空间应用工程与技术中心 | System and method for parallel leak detection of multiple independent devices by combining helium gas and pressure |
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