CN109781364A - Gas leak detection device and method - Google Patents
Gas leak detection device and method Download PDFInfo
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- CN109781364A CN109781364A CN201910244153.3A CN201910244153A CN109781364A CN 109781364 A CN109781364 A CN 109781364A CN 201910244153 A CN201910244153 A CN 201910244153A CN 109781364 A CN109781364 A CN 109781364A
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Abstract
This application provides a kind of gas leak detection devices, comprising: pressure vessel has side wall, top plate and bottom plate, and the side wall, the bottom plate and the top plate surround confined space, multiple connecting holes of different pore size are provided on the side wall；First pressure detection part is set on the side wall；Pressure regulating part is set to the multiple connection hole, and second pressure detection device is provided at the pressure regulating part.
Description
Technical field
This application involves aircraft technology fields, specifically provide a kind of gas leak detection device and method.
Background technique
The continuous improvement produced with the continuous development of science and technology with industrial scale, the air-leakage test of closed container
Increasingly by the attention of manufacturer, to avoid closed container from setting off an explosion because leakage occurs, fire even injures people
The accident of body safety occurs, and to the gas leakage detection of closed container, more stringent requirements are proposed.
Whether common closed container air-tightness detection method is usually that will be immersed in the water after closed container aeration, exclude to have
Gas generates, and closed container in the detection process, need to be immersed in the water by this detection mode, and if closed after detection
Container needs to carry out filling, it is necessary to which closed container is dried.
In addition, being difficult to realize to inspect periodically to closed container currently in use or the purpose of real-time monitoring.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, this application provides a kind of gas leak detection device and methods.
In a first aspect, this application provides a kind of gas leak detection devices, comprising: pressure vessel has side wall, top plate and bottom
Plate, the side wall, the bottom plate and the top plate surround confined space, and multiple companies of different pore size are provided on the side wall
Connect hole；First pressure detection part is set on the side wall；Pressure regulating part is set to the multiple connection hole, and
The multiple connection hole is provided with second pressure detection part.
In some embodiments, the side wall includes the first side wall and second sidewall, and the first pressure detection part is set
It is placed in the first side wall, the multiple connecting hole is set in the second sidewall.
In some embodiments, the first pressure detection part is pressure gauge, and institute is run through in the test side of the pressure gauge
The first side wall is stated, so that the test side of the pressure gauge is located in the confined space.
In some embodiments, the second pressure detection device includes multiple pressure sensors, the pressure sensor
Quantity it is identical as the quantity of the connecting hole, and a connection hole is provided with a pressure sensor.
In some embodiments, the pressure regulating part is multiple bolts, the quantity of the bolt and the connecting hole
Quantity it is identical, and bolt is suitable for being set to the connection hole.
It in some embodiments, further include pneumatic element, the pneumatic element is arranged on the top plate.
In some embodiments, the pneumatic element is valve inside, and the valve inside is arranged on the top plate, to ensure
The pressure vessel is unidirectionally inflated.
In some embodiments, the junction of the side wall and the top plate is provided with gasket.
Second aspect, this application provides a kind of leak detection methods, are applied to such as any one of claims 1 to 7 institute
The gas leak detection device stated, comprising: the aeration level for adjusting pressure regulating part is detected by second pressure detection part and connected
Second pressure variation at hole；During adjusting the aeration level of pressure regulating part, first pressure detection part institute is recorded
First pressure variation in the confined space detected；By first pressure variation and second pressure variation, obtain
The corresponding relationship of the first pressure variation and second pressure variation；Changed by first pressure variation and second pressure
Corresponding relationship, come detect closed container to be detected connection hole gas leakage state.
In some embodiments, it in the aeration level for adjusting pressure regulating part, is detected by second pressure detection part
Before the second pressure variation of connection hole, further includes: be filled with the gas of preset pressure into pressure vessel.
In gas leak detection device provided by the embodiments of the present application and method, by adjusting pressure regulating part so that even
Hole gas leakage is connect, and the pressure in confined space is detected by first pressure detection part, is detected by second pressure detection part
The pressure of connection hole detects closed container to be detected by the corresponding relationship to obtain the corresponding relationship of pressure at two
The gas leakage state of connection hole, meanwhile, by changing the aperture of connecting hole, it can be realized the mechanical connection hole leakage to different size
The detection of gaseity.Gas leak detection device provided by the present application and method, with principle is simple, detection efficiency is high, easy to operate
And the advantages that safe and reliable, inspecting periodically and supervising in real time convenient for the closed containers connecting hole gas leakage state such as pressure vessel, fuel tank
It surveys, overcomes and be difficult to realize to inspect periodically closed container using common detection methods or the shortcomings that real-time monitoring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gas leak detection device provided by the embodiments of the present application；
Fig. 2 is the flow diagram of leak detection method provided by the embodiments of the present application.
Wherein:
10, pneumatic element；20, top plate；30, first pressure detection part；40, pressure regulating part；50, side wall；51,
One side wall；52, second sidewall；53, connecting hole.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
Convenient for description, part relevant to the application is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that in the description of the present application, term " center ", "upper", "lower", "left", "right", "vertical",
The direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are direction based on the figure or positional relationship, this
It is intended merely to facilitate description, rather than indication or suggestion described device or element must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ", being only used for describing
Purpose is not understood to indicate or imply relative importance.
In addition it is also necessary to explanation, in the description of the present application unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the application.
Fig. 1 shows gas leak detection device provided by the embodiments of the present application, which includes pressure vessel, has side wall
50, top plate 20 and bottom plate, side wall 50, bottom plate and top plate 20 surround confined space, the multiple of different pore size are provided on side wall
Connecting hole 53.
First pressure detection part 30 is set on side wall 50, and pressure regulating part 40 is set at multiple connecting holes 53,
And multiple connection holes are provided with second pressure detection part.
In the present embodiment, the gas of preset pressure is filled in pressure vessel, by adjusting the pressure tune at connecting hole 53
Component 40 is saved, so that the gas in confined space leaks, the second pressure detection part by the way that connection hole is arranged in is examined
The second pressure variation of connecting hole is surveyed, meanwhile, first pressure detection part detects the first pressure variation in confined space, so
Afterwards, the corresponding relationship of first pressure variation with second pressure variation is obtained, it is to be detected so as to detect by the corresponding relationship
Closed container connecting hole gas leakage state.
It should be noted that the aperture of connecting hole can be set according to the diameter of the connecting hole on closed container to be detected
It is fixed, it is only necessary to guarantee the company of some connecting hole and closed container to be detected on gas leak detection device provided by the embodiments of the present application
The aperture for connecing hole is identical.
In some embodiments, side wall 50 includes the first side wall 51 and second sidewall 52, by two the first side wall 51, two
Second sidewall 52, bottom plate and top plate 20 surround a confined space, and first pressure detection part 30 is set on the first side wall 51,
Multiple connecting holes are set in second sidewall 52.Optionally, aperture is different there are four opening up in each second sidewall 52
Connecting hole 53, with for installing second pressure detection part and pressure regulating part 40.
Further, the first side wall 51 is run through in the test side of 30 pressure gauges of first pressure detection part, pressure gauge, so that
The test side of pressure gauge is located in confined space, so as to detect the pressure in confined space.
Optionally, pressure gauge can use pointer pressure, electronic pressure meter can also be used, as long as being able to detect
Pressure in confined space.
Further, second pressure detection part includes multiple pressure sensors, the quantity and connecting hole of pressure sensor
53 quantity is identical, and a pressure sensor is provided at a connecting hole 53.
Further, pressure regulating part 40 is multiple bolts, and the quantity of bolt is identical as the quantity of connecting hole 53, and one
A bolt is suitable for being set at a connecting hole 53.
In the present embodiment, according to the aperture of the connecting hole of closed container to be detected, in leakage provided by the embodiments of the present application
Connecting hole identical with its aperture is selected in connecting hole in gas detection device, by adjusting the aeration level of bolt, to simulate
Gas leakage state, and detect pressure change respectively by pressure gauge and pressure sensor, and obtain the pressure that pressure gauge detects
Variation and pressure sensor detect the corresponding relationship of pressure change, finally, detect the connection hole of closed container to be detected
The pressure change is detected the corresponding of pressure change with the pressure change and pressure sensor that pressure gauge detects by pressure change
Relationship, to obtain the gas leakage state of the connection hole of closed container.
In some embodiments, gas leak detection device further includes pneumatic element 10, and pneumatic element 10 is set on top plate 20.
Further, pneumatic element 10 includes but is not limited to valve inside, and valve inside is set on top plate 20, to ensure to pressure
Force container is unidirectionally inflated.Certainly, pneumatic element 10 can also be one-way cock, can also guarantee unidirectionally to inflate.
In one embodiment, the junction of side wall 50 and top plate 20 is provided with gasket, to guarantee gas leak detection device
Leakproofness.
Fig. 2 shows leak detection method provided by the embodiments of the present application, which is applied to above-mentioned leakage
Gas detection device.
As shown in Fig. 2, leak detection method includes:
Step 201, the aeration level for adjusting pressure regulating part detects connection hole by second pressure detection part
Second pressure variation.
Step 202, during adjusting the aeration level of pressure regulating part, record first pressure detection part is detected
First pressure variation in the confined space arrived.
Step 203, changed by first pressure variation and second pressure, obtain first pressure variation and second pressure variation
Corresponding relationship.
Step 204, by the corresponding relationship of first pressure variation and second pressure variation, to detect closed container to be detected
Connection hole gas leakage state.
In the present embodiment, changed by first pressure variation and second pressure, obtain first pressure variation and the second pressure
The corresponding relationship of power variation, first pressure can be changed and second pressure variation is depicted as curve graph in the same coordinate system
Form, first pressure can also be changed and second pressure changes the form for being depicted as table.
In some embodiments, before step 201, this method further include:
Step 205, the gas of preset pressure is filled with into pressure vessel.
In the present embodiment, by above-mentioned method be applied to gas leak detection device, can accurately, in real time to closed
The connection hole of container carries out gas leakage state-detection.
The above, the only specific embodiment of the application, it is apparent to those skilled in the art that,
For convenience of description and succinctly, the system, module of foregoing description and the specific work process of unit can refer to preceding method
Corresponding process in embodiment, details are not described herein.It should be understood that the protection scope of the application is not limited thereto, it is any to be familiar with
Those skilled in the art within the technical scope of the present application, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should all cover within the scope of protection of this application.
Claims (10)
1. a kind of gas leak detection device characterized by comprising
Pressure vessel has side wall (50), top plate (20) and bottom plate, the side wall (50), the bottom plate and the top plate (20)
Confined space is surrounded, multiple connecting holes (53) of different pore size are provided on the side wall (50)；
First pressure detection part (30) is set on the side wall (50)；
Pressure regulating part (40) is set at the multiple connecting hole (53), and is arranged at the multiple connecting hole (53)
There is second pressure detection part.
2. gas leak detection device according to claim 1, which is characterized in that the side wall (50) includes the first side wall (51)
With second sidewall (52), the first pressure detection part (30) is set to the first side wall (51), the multiple connecting hole
(53) it is set on the second sidewall (52).
3. gas leak detection device according to claim 2, which is characterized in that the first pressure detection part (30) is pressure
The first side wall (51) are run through in the test side of power table, the pressure gauge, so that the test side of the pressure gauge is positioned at described close
It closes in space.
4. gas leak detection device according to claim 1, which is characterized in that the second pressure detection part includes multiple
Pressure sensor, the quantity of the pressure sensor is identical as the quantity of the connecting hole (53), and at a connecting hole (53)
It is provided with a pressure sensor.
5. gas leak detection device according to claim 1, which is characterized in that the pressure regulating part (40) is multiple spiral shells
Bolt, the quantity of the bolt is identical as the quantity of the connecting hole (53), and a bolt is suitable for being set to described in one
At connecting hole (53).
6. gas leak detection device according to claim 1, which is characterized in that further include pneumatic element (10), the inflation
Component (10) is set on the top plate (20).
7. gas leak detection device according to claim 6, which is characterized in that the pneumatic element (10) is valve inside, institute
It states valve inside to be set on the top plate (20), to ensure unidirectionally to inflate the pressure vessel.
8. gas leak detection device according to claim 1, which is characterized in that the side wall (50) and the top plate (20)
Junction is provided with gasket.
9. a kind of leak detection method, applied to the gas leak detection device as described in any one of claims 1 to 7, feature
It is, comprising:
The aeration level for adjusting pressure regulating part is become by the second pressure that second pressure detection part detects connection hole
Change；
During adjusting the aeration level of pressure regulating part, confined space detected by first pressure detection part is recorded
Interior first pressure variation；
By first pressure variation and second pressure variation, the first pressure variation and second pressure variation are obtained
Corresponding relationship；
By the corresponding relationship of first pressure variation and second pressure variation, to detect the connecting hole of closed container to be detected
The gas leakage state at place.
10. leak detection method as claimed in claim 9, which is characterized in that in the aeration level for adjusting pressure regulating part, lead to
It crosses before the second pressure variation of second pressure detection part detection connection hole, further includes:
The gas of preset pressure is filled with into pressure vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244153.3A CN109781364B (en) | 2019-03-28 | 2019-03-28 | Air leakage detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244153.3A CN109781364B (en) | 2019-03-28 | 2019-03-28 | Air leakage detection device and method |
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| Publication Number | Publication Date |
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| CN109781364A true CN109781364A (en) | 2019-05-21 |
| CN109781364B CN109781364B (en) | 2021-01-19 |
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| CN201910244153.3A Active CN109781364B (en) | 2019-03-28 | 2019-03-28 | Air leakage detection device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157196A (en) * | 2020-01-19 | 2020-05-15 | 广东省特种设备检测研究院珠海检测院 | Leakage detection device |
| CN114323505A (en) * | 2022-03-18 | 2022-04-12 | 山西华羽盛泰科技有限公司 | Pressure container detection device |
| CN115127753A (en) * | 2022-06-15 | 2022-09-30 | 重庆长安新能源汽车科技有限公司 | Container air tightness detection method and system |
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| CN115127753A (en) * | 2022-06-15 | 2022-09-30 | 重庆长安新能源汽车科技有限公司 | Container air tightness detection method and system |
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| Publication number | Publication date |
|---|---|
| CN109781364B (en) | 2021-01-19 |
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