CN220418766U - Air tightness test device - Google Patents
Air tightness test device Download PDFInfo
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- CN220418766U CN220418766U CN202321772855.7U CN202321772855U CN220418766U CN 220418766 U CN220418766 U CN 220418766U CN 202321772855 U CN202321772855 U CN 202321772855U CN 220418766 U CN220418766 U CN 220418766U
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- storage tank
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- 238000012360 testing method Methods 0.000 title claims abstract description 79
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of airtight tests, and discloses an airtight test device which is configured to be connected to an object to be tested and comprises an air storage tank, a leakage detector, a first control valve and a controller. The gas storage tank is used for containing compressed gas; the leak detector is communicated with the object to be detected and can monitor the air pressure in the object to be detected in real time; the first control valve is arranged between the air storage tank and the object to be detected and can control the on-off of the air storage tank and the object to be detected; the leak detector and the first control valve are respectively connected to the controller in a communication way, and the controller can control the opening and closing of the first control valve. The airtight test device can monitor air pressure in real time, and automatically cuts off an air source after the air pressure reaches test pressure, so that the operation efficiency and the test precision are improved.
Description
Technical Field
The utility model relates to the technical field of airtight tests, in particular to an airtight test device.
Background
When the installation of the fireproof pipeline of the aircraft is completed or maintained, an airtight test is required. The currently common airtight test method is as follows: and closing an output port of the fireproof pipeline, regulating the pressure of compressed air to test pressure through a pressure regulating and reducing valve, connecting the compressed air to an inlet of the fireproof pipeline to be tested, and closing a stop valve at the upstream of an opening of the fireproof pipeline to be tested when the pressure in the fireproof pipeline to be tested reaches the test pressure and is stable for a period of time, so that the gas quantity and the gas pressure in the fireproof pipeline to be tested are kept constant. After a certain time is kept, whether the pressure in the fireproof pipeline to be tested is reduced or not is observed, and if the pressure is obviously reduced, the problem of leakage of the fireproof pipeline to be tested is solved.
The mode that is used for detecting the gas tightness of aircraft fire prevention pipeline at present is carried out for mechanical barometer and manual mode that cuts off the air supply of manual work, and the air supply does not have dry filtration treatment, and operating efficiency is lower, and the test precision is not high, and causes fire prevention pipeline pollution easily.
Therefore, there is a need for an airtight test apparatus to solve the above problems.
Disclosure of Invention
The utility model aims to provide an airtight test device which can monitor air pressure in real time, automatically cut off an air source after the air pressure reaches test pressure, and improve operation efficiency and test precision.
To achieve the purpose, the utility model adopts the following technical scheme:
an airtight test apparatus configured to be connected to an object to be tested, comprising:
the gas storage tank is used for containing compressed gas;
the leakage detector is communicated with the object to be detected and can monitor the air pressure in the object to be detected in real time;
the first control valve is arranged between the gas storage tank and the object to be detected and can control the on-off of the gas storage tank and the object to be detected;
the controller is connected with the leakage detector and the first control valve in a communication mode respectively, and the controller can control the first control valve to be opened and closed.
As a preferable mode of the airtight test apparatus provided by the utility model, the airtight test apparatus further comprises a gas source processing system which is arranged at the upstream of the gas storage tank, is configured to be communicated with a factory gas source, and converts the gas of the factory gas source into the compressed gas which can be used for airtight test.
As the preferable scheme of the airtight test device provided by the utility model, a second control valve is arranged between the air source processing system and the air storage tank, the second control valve can control the on-off of the air source processing system and the air storage tank, the second control valve is in communication connection with the controller, and the controller can control the on-off of the second control valve.
As the preferable scheme of the airtight test device provided by the utility model, a one-way valve is arranged between the air source processing system and the air storage tank, and the one-way valve can limit the flow direction of the compressed air to flow from the air source processing system to the air storage tank.
As the preferable scheme of the airtight test device provided by the utility model, the airtight test device further comprises a regulating valve, wherein the regulating valve is arranged between the air storage tank and the object to be tested and is in communication connection with the controller, the controller can control the opening degree of the regulating valve, and the regulating valve can regulate the flow of the compressed gas.
As the preferable scheme of the airtight test device provided by the utility model, the airtight test device further comprises a pressure gauge, wherein the pressure gauge is in communication connection with the leak detector, and the pressure gauge can display the air pressure in the object to be tested in real time.
As the preferable scheme of the airtight test device provided by the utility model, the airtight test device further comprises a device cabinet body, and the air storage tank, the leak detector, the first control valve and the controller are uniformly distributed in the device cabinet body.
As the preferable scheme of the airtight test device provided by the utility model, the airtight test device further comprises a display which is arranged at the top of the device cabinet body and is in communication connection with the controller, and the flow rate, the pressure and the inflation time of the compressed gas can be displayed.
As a preferable scheme of the airtight test device provided by the utility model, the device cabinet body is provided with the cooling fan, and the cooling fan is arranged on the side part of the device cabinet body corresponding to the leak detector.
As the preferable scheme of the airtight test device provided by the utility model, the bottom of the device cabinet body is provided with a plurality of casters, and the casters rotate to drive the device cabinet body to move.
The utility model has the beneficial effects that:
the utility model provides an airtight test device which is configured to be connected with an object to be tested and comprises a gas storage tank, a leak detector, a first control valve and a controller. The gas storage tank is used for containing compressed gas, and the compressed gas can be filled into an object to be detected. The leakage detector is communicated with the object to be detected, and can monitor the air pressure in the object to be detected in real time, that is, the leakage detector can detect the change of the air pressure in the object to be detected within a preset time so as to reflect whether the object to be detected has a leakage problem. The first control valve is arranged between the air storage tank and the object to be detected and can control the on-off of the air storage tank and the object to be detected; the leak detector and the first control valve are respectively connected to the controller in a communication way, and the controller can control the opening and closing of the first control valve. That is, the controller can control the first control valve to be opened according to the air pressure signal in the object to be tested sent by the leak detector, so that the air pressure in the object to be tested reaches the pressure required by the test, and when the air pressure in the object to be tested reaches the pressure required by the test, the controller can automatically control the first control valve to be closed, and the air inflation is stopped. The airtight test device can monitor air pressure in real time, and automatically cuts off an air source after the air pressure reaches test pressure, so that the operation efficiency and the test precision are improved.
Drawings
FIG. 1 is a schematic view of a part of the structure of an airtight testing apparatus according to an embodiment of the present utility model;
FIG. 2 is an isometric view of an airtight testing apparatus provided by an embodiment of the present utility model;
FIG. 3 is a front view of an airtight testing apparatus provided by an embodiment of the present utility model;
fig. 4 is a top view of an airtight testing apparatus provided in an embodiment of the present utility model.
In the figure:
10. an object to be measured;
100. a gas storage tank;
200. a leak detector;
300. a first control valve;
400. an air source treatment system;
500. a second control valve;
600. a one-way valve;
700. a regulating valve;
800. a device cabinet; 810. a pressure gauge; 820. a display; 830. a heat radiation fan; 840. casters; 900. and a proportional valve.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Fig. 1 is a schematic view showing a part of the structure of an airtight testing apparatus according to an embodiment of the present utility model. Referring to fig. 1, the present embodiment provides an airtight testing apparatus. The air tightness test device is configured to be connected to the object to be tested 10 for detecting air tightness of the object to be tested 10. The airtight test apparatus includes an air tank 100, a leakage detector 200, a first control valve 300, and a controller.
Specifically, the air tank 100 is connected to a factory air source for containing compressed air and supplying the air to be tested 10 with compressed air for performing an airtight test. In this embodiment, the object to be measured 10 is an aircraft fire protection system pipeline.
Preferably, the air tightness test device further comprises an air source treatment system 400. The gas source processing system 400 is disposed upstream of the gas storage tank 100 and is configured to communicate with a plant gas source. The gas source processing system 400 is capable of converting the gas from the plant gas source into the compressed gas that can be used in a gas tightness test, i.e., converting the plant gas source into 50psi (+2/-0 psi) of compressed gas to meet the requirements of an aircraft fire protection system pipeline gas tightness test. The air source processing system 400 is a prior art, and the structure and principle of this embodiment are not described herein.
More specifically, a second control valve 500 is disposed between the gas source processing system 400 and the gas reservoir 100. The second control valve 500 can control the on-off of the air supply processing system 400 and the air tank 100. The second control valve 500 is communicatively connected to the controller, which is capable of controlling the opening and closing of the second control valve 500. The air tank 100 is provided with an air quantity sensor capable of sensing the air quantity in the air tank 100, and when the air quantity in the air tank 100 reaches an upper limit, the controller controls the second control valve 500 to be closed according to the air quantity signal. In this embodiment, the second control valve 500 may be a solenoid valve.
Preferably, a one-way valve 600 is disposed between the air supply processing system 400 and the air reservoir 100. The check valve 600 can restrict the flow of the compressed gas from the gas source processing system 400 to the gas storage tank 100. With the above arrangement, the compressed gas in the gas tank 100 can be effectively prevented from flowing backward.
More specifically, the leak detector 200 is connected to the object to be measured 10, so as to monitor the air pressure in the object to be measured 10 in real time. The leak detector 200 includes an air pressure sensor that is capable of sensing air pressure in the object under test 10. When the air pressure sensor senses the air pressure inside the object to be measured 10 in a preset time period, it indicates that the object to be measured 10 has unreliable air tightness.
More specifically, the first control valve 300 is disposed between the air tank 100 and the object to be measured 10, and can control the on/off of the air tank 100 and the object to be measured 10. The leak detector 200 and the first control valve 300 are respectively connected to the controller in a communication manner, and the controller can determine whether the air pressure in the object to be detected 10 has reached the test requirement pressure according to the air pressure signal sent by the air pressure sensor. When the air pressure in the object to be tested 10 does not reach the test requirement pressure, the first control valve 300 is controlled to be opened, so that the compressed air in the air storage tank 100 enters the object to be tested 10; when the air pressure in the object to be measured 10 reaches the test required pressure, the first control valve 300 is controlled to be closed, and then the air tightness test is started. The controller may be a PLC in the prior art, and the structure and principle of this embodiment are not described in detail. In this embodiment, the first control valve 300 may be a solenoid valve.
Preferably, the air tightness test device further comprises a regulating valve 700. The adjusting valve 700 is disposed between the air tank 100 and the object to be measured 10, and is communicatively connected to the controller, the controller can control the opening of the adjusting valve 700, and the adjusting valve 700 can adjust the flow of the compressed gas. The regulator valve 700 may be selected from prior art flow control valves.
Referring to fig. 1, the air tightness test apparatus further includes a proportional valve 900. The proportional valve 900 is disposed between the first control valve 300 and the air tank 100. The proportional valve 900 is a hydraulic valve that converts an input electric signal into force or displacement in proportion to continuously control parameters such as pressure, flow rate, etc. The proportional valve 900 can continuously and proportionally control the pressure in the gas path and the flow of the compressed gas, and reduce the impact of gas pressure changes on the gas path and downstream components.
FIG. 2 shows an isometric view of an airtight testing apparatus provided by an embodiment of the present utility model; FIG. 3 shows a front view of an airtight testing apparatus provided by an embodiment of the present utility model; FIG. 4 shows a top view of an airtight testing apparatus provided by an embodiment of the present utility model. Referring to fig. 2-4, the air tightness test apparatus further includes an apparatus cabinet 800. The above components, such as the air storage tank 100, the leak detector 200, the first control valve 300, the controller, etc., are all disposed in the device cabinet 800, and are integrated by the device cabinet 800, so as to improve the integrity of the airtight test apparatus, and facilitate the overall transportation of the airtight test apparatus.
Specifically, the air tightness test device further includes a pressure gauge 810. The pressure gauge 810 is disposed on the top panel of the device cabinet 800 and is communicatively coupled to the leak detector 200. The pressure gauge 810 can display the air pressure in the object to be measured 10 in real time, so that a tester can grasp the pressure value in the object to be measured 10 at any time. In the air tightness detection test process, the air pressure sensor can transmit the air pressure signal in the object to be tested 10 to the pressure gauge 810 in real time, and a tester can know whether the object to be tested 10 has the air tightness problem through the pressure change value of the pressure gauge 810.
Still more particularly, the air tightness test device further comprises a display 820. The display 820 is disposed at the top of the device cabinet 800 and is communicatively coupled to the controller to display the flow rate, pressure and inflation time of the compressed gas. The display 820 may also have a man-machine interaction function, and a tester may issue a command to the controller through the display 820, thereby controlling the first control valve 300, the second control valve 500, and the regulator valve 700.
Preferably, the apparatus cabinet 800 is provided with a heat radiation fan 830. The heat radiation fan 830 is disposed at a side portion of the device cabinet 800 corresponding to the mounting position of the leak detector 200. Through this radiator fan 830, can realize the effective heat dissipation of device cabinet 800 inner space, guarantee that each part of its inside all operates under a suitable temperature condition, prevent to operate overheated problem that leads to detection precision inaccuracy or damage.
Preferably, the bottom of the device cabinet 800 is provided with a plurality of casters 840. The caster 840 can rotate to drive the device cabinet 800 to move, thereby facilitating the transportation of the airtight test device.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. An airtight test apparatus configured to be connected to an object (10) to be tested, comprising:
-a gas reservoir (100), the gas reservoir (100) being adapted to contain compressed gas;
the leakage detector (200) is communicated with the object to be detected (10), and can monitor the air pressure in the object to be detected (10) in real time;
the first control valve (300) is arranged between the gas storage tank (100) and the object to be detected (10), and can control the on-off of the gas storage tank (100) and the object to be detected (10);
the controller is connected with the leakage detector (200) and the first control valve (300) in a communication mode respectively, and the controller can control the first control valve (300) to be opened and closed.
2. The tightness test apparatus according to claim 1, further comprising a gas source handling system (400), said gas source handling system (400) being arranged upstream of said gas reservoir (100) and configured to communicate with a plant gas source and to convert gas of said plant gas source into said compressed gas that can be used for tightness test.
3. The airtight test apparatus according to claim 2, wherein a second control valve (500) is disposed between the air source processing system (400) and the air storage tank (100), the second control valve (500) is capable of controlling on-off of the air source processing system (400) and the air storage tank (100), the second control valve (500) is communicatively connected to the controller, and the controller is capable of controlling on-off of the second control valve (500).
4. The tightness test device according to claim 2, wherein a one-way valve (600) is arranged between the gas source processing system (400) and the gas storage tank (100), the one-way valve (600) being capable of restricting the flow direction of the compressed gas from the gas source processing system (400) to the gas storage tank (100).
5. The tightness test device according to claim 1, further comprising a regulating valve (700), wherein the regulating valve (700) is arranged between the gas storage tank (100) and the object to be tested (10) and is communicatively connected to the controller, the controller can control the opening of the regulating valve (700), and the regulating valve (700) can regulate the flow rate of the compressed gas.
6. The air tightness test device according to claim 1, further comprising a pressure gauge (810), wherein the pressure gauge (810) is communicatively connected to the leak detector (200), and wherein the pressure gauge (810) is capable of displaying the air pressure in the object (10) to be tested in real time.
7. The air tightness test device according to claim 1, further comprising a device cabinet (800), wherein the air tank (100), the leak detector (200), the first control valve (300) and the controller are all disposed in the device cabinet (800).
8. The air tightness test device according to claim 7, further comprising a display (820) arranged on top of said device cabinet (800) and communicatively connected to said controller capable of displaying the flow rate, pressure and inflation time of said compressed gas.
9. The air tightness test device according to claim 7, wherein said device cabinet (800) is provided with a heat radiation fan (830), said heat radiation fan (830) being provided at a side portion of said device cabinet (800) corresponding to said leak detector (200).
10. The air tightness test device according to claim 7, wherein a plurality of casters (840) are provided at the bottom of the device cabinet (800), and the casters (840) rotate to drive the device cabinet (800) to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321772855.7U CN220418766U (en) | 2023-07-07 | 2023-07-07 | Air tightness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321772855.7U CN220418766U (en) | 2023-07-07 | 2023-07-07 | Air tightness test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220418766U true CN220418766U (en) | 2024-01-30 |
Family
ID=89657039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321772855.7U Active CN220418766U (en) | 2023-07-07 | 2023-07-07 | Air tightness test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220418766U (en) |
-
2023
- 2023-07-07 CN CN202321772855.7U patent/CN220418766U/en active Active
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