CN217845965U - Pressure-resistant testing device for gas meter - Google Patents
Pressure-resistant testing device for gas meter Download PDFInfo
- Publication number
- CN217845965U CN217845965U CN202221088766.6U CN202221088766U CN217845965U CN 217845965 U CN217845965 U CN 217845965U CN 202221088766 U CN202221088766 U CN 202221088766U CN 217845965 U CN217845965 U CN 217845965U
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- gas meter
- electromagnetic valve
- testing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The embodiment of the application provides a pressure resistance testing device for a gas meter, which comprises an air compressor, a first electromagnetic valve, a time relay, a pressure gauge, a pneumatic valve and a second electromagnetic valve; the air compressor is connected with the first end of the first electromagnetic valve and the first end of the second electromagnetic valve, and the second end of the first electromagnetic valve is connected with the test inlet of the gas meter to be tested; the test outlet of the gas meter to be tested is connected with the first end of the pneumatic valve, and the second end of the pneumatic valve is used as the outlet of the device; the second end of the second electromagnetic valve is connected with the switch end of the pneumatic valve; when the second electromagnetic valve is opened, controlling the pneumatic valve to be opened; the time relay is used for controlling the first electromagnetic valve and the second electromagnetic valve to be opened and closed; the pressure gauge is connected with the gas meter to be detected and used for detecting the pressure of the gas meter to be detected. Through the pressure-resistant testing device of the gas meter, the internal pressure resistance and fatigue resistance of the meter in different testing periods under different pressures are tested, so that the safety of the meter in long-term use is ensured.
Description
Technical Field
The application belongs to the technical field of compression testing, and particularly relates to a pressure-resistant testing device for a gas meter.
Background
The shell of the gas meter generally adopts the process that the upper shell and the lower shell are firmly sealed by the shell clamp, and the sealing process is simple and efficient. However, the process of sealing the edge through the shell card needs to be strengthened and verified in reliability, sealing the edge can be affected when a new shell mold or a rubber ring is replaced, and the sealing property of the shell card also needs to be strengthened and verified. Therefore, the strength and the sealing performance of the shell of the gas meter are very important, and the pressure resistance test of the gas meter after edge sealing is required.
SUMMERY OF THE UTILITY MODEL
The utility model provides a withstand voltage testing device of gas table has solved the technical problem who appears above to a certain extent.
According to the embodiment of the application, the pressure resistance testing device for the gas meter is provided, and comprises an air compressor, a first electromagnetic valve, a time relay, a pressure meter, a pneumatic valve and a second electromagnetic valve; in particular, the method comprises the following steps of,
the air compressor is connected with the first end of the first electromagnetic valve and the first end of the second electromagnetic valve, and the second end of the first electromagnetic valve is connected with the test inlet of the gas meter to be tested;
the test outlet of the gas meter to be tested is connected with the first end of the pneumatic valve, and the second end of the pneumatic valve is used as the outlet of the device;
the second end of the second electromagnetic valve is connected with the switch end of the pneumatic valve; when the second electromagnetic valve is opened, controlling the pneumatic valve to be opened;
the time relay is connected with the first electromagnetic valve and the second electromagnetic valve and is used for controlling the first electromagnetic valve and the second electromagnetic valve to be opened and closed;
the pressure gauge is connected with the gas meter to be detected and used for detecting the pressure of the gas meter to be detected.
In some embodiments of the present application, further comprising an air surge tank; the air surge tank is arranged between the air compressor and the first electromagnetic valve.
In some embodiments of the present application, further comprising a pressure regulating valve; the pressure regulating valve is arranged between the air pressure stabilizing tank and the first electromagnetic valve.
In some embodiments of the present application, further comprising a pressure regulating valve; the pressure regulating valve is arranged between the air compressor and the first electromagnetic valve.
In some embodiments of the present application, the gas meter to be tested includes one or more gas meters.
In some embodiments of the present application, a plurality of gas meters are connected in series or in parallel.
In some embodiments of the present application, the test device further includes a needle valve, and the needle valve is disposed at a test inlet and/or a test outlet of the gas meter to be tested.
In some embodiments of the present application, the needle valve comprises a first needle valve and a second needle valve; in particular, the method comprises the following steps of,
the second end of the first electromagnetic valve is connected with the first end of the first needle valve, and the second end of the first needle valve is connected with the test inlet of the gas meter to be tested; and a test outlet of the gas meter to be tested is connected with the first end of the second needle valve, and the second end of the second needle valve is connected with the first end of the pneumatic valve.
In some embodiments of the present application, further comprising an alarm; the alarm is connected with the pressure gauge, and when the numerical value of the pressure gauge exceeds a threshold value, the alarm gives an alarm through the alarm.
In some embodiments of the present application, the alarm includes differently colored indicator lights and/or players.
The pressure-resistant testing device for the gas meter comprises an air compressor, a first electromagnetic valve, a time relay, a pressure meter, a pneumatic valve and a second electromagnetic valve; specifically, the air compressor is connected with a first end of a first electromagnetic valve and a first end of a second electromagnetic valve, and a second end of the first electromagnetic valve is connected with a test inlet of the gas meter to be tested; a test outlet of the gas meter to be tested is connected with a first end of a pneumatic valve, and a second end of the pneumatic valve is used as a device outlet; the second end of the second electromagnetic valve is connected with the switch end of the pneumatic valve; when the second electromagnetic valve is opened, controlling the pneumatic valve to be opened; the time relay is connected with the first electromagnetic valve and the second electromagnetic valve and is used for controlling the first electromagnetic valve and the second electromagnetic valve to be opened and closed; the pressure gauge is connected with the gas meter to be detected and used for detecting the pressure of the gas meter to be detected. Through the pressure-resistant testing device for the gas meter, the internal pressure resistance and fatigue resistance of the meter are tested, so that the safety of the meter in long-term use is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 shows a schematic structural diagram of a pressure resistance testing device of a gas meter according to an embodiment of the present application;
fig. 2 shows a schematic structural diagram of a pressure resistance testing device of a gas meter according to another embodiment of the present application;
wherein, 1-an air compressor; 2-a first solenoid valve; 3-a time relay; 4-a second solenoid valve; 5-a pressure gauge; 6, a gas meter to be detected; 7-pneumatic valves; 10-air surge tank; 20-a pressure regulating valve; 30-a first needle valve; 40-second needle valve.
Detailed Description
In the process of realizing the method, the inventor finds that the strength of the gas meter shell is of great importance, and the existing method for detecting the compressive strength is to perform the compressive strength test by constant pressure. However, this method does not take into account the effect of the housing on its fatigue resistance, in particular its edge seal strength, during the constant change in gas pressure.
Because the pressure in the gas pipeline is higher, the meter has long service life, and has strict requirements on the material and the sealing property of the shell. Based on this, in order to satisfy the anti interior pressure test demand of european standard EN 14236-2018, the utility model provides a withstand voltage testing device of gas table, including air compressor, first solenoid valve, time relay, manometer and second solenoid valve. Through the withstand voltage testing device of the gas meter, the internal pressure resistance and fatigue resistance of the meter are tested, and the safety of the meter in long-term use is guaranteed.
Meanwhile, when the edge sealing die is adjusted during production, or the shell material is changed, the reliability of the shell can be verified through the test. The scheme is high in practicability, simple and convenient to operate, low in cost, capable of testing one gas meter and capable of testing two or three gas meters simultaneously, and high in testing efficiency.
Specifically, the air compressor is connected with a first end of a first electromagnetic valve and a first end of a second electromagnetic valve, and a second end of the first electromagnetic valve is connected with a test inlet of the gas meter to be tested; the test outlet of the gas meter to be tested is connected with the first end of the pneumatic valve, and the second end of the pneumatic valve is used as the outlet of the device; the second end of the second electromagnetic valve is connected with the switch end of the pneumatic valve; when the second electromagnetic valve is opened, controlling the pneumatic valve to be opened; the time relay is connected with the first electromagnetic valve and the second electromagnetic valve and is used for controlling the first electromagnetic valve and the second electromagnetic valve to be opened and closed; the pressure gauge is connected with the gas meter to be detected and used for detecting the pressure of the gas meter to be detected, and the change speed of the pressure in the meter can be observed through the pressure gauge. Through the withstand voltage testing device of the gas meter, the internal pressure resistance and fatigue resistance of the meter are tested, and the safety of the meter in long-term use is guaranteed.
The air compressor generates a positive pressure air source, the positive pressure air source enters the air pressure stabilizing tank, and the air in the air pressure stabilizing tank is adjusted into air according with the test pressure through the pressure regulating valve; the pressure-resistant testing device for the gas meter further comprises a needle valve arranged on the testing inlet side and/or the testing outlet side. When the test inlet side and the test outlet side are both provided with needle valves, the gas enters the gas meter 6 to be tested through the first electromagnetic valve 2 and the first needle valve 30. And gas in the gas meter to be measured 6 is exhausted to the atmosphere through the second needle valve 4 and the pneumatic valve 7, the gas source of the pneumatic valve 7 is controlled by the second electromagnetic valve, and the time relay 3 controls the first electromagnetic valve 2 and the second electromagnetic valve 4 to be opened and closed.
Specifically, referring to fig. 2, the testing principle of the pressure-resistant testing apparatus for a gas meter in the present application is as follows:
an air source of positive pressure is generated by the air compressor 1, enters the air pressure stabilizing tank 10 for pressure stabilization, and then the gas from the air pressure stabilizing tank 10 is adjusted into the gas meeting the testing pressure through the pressure regulating valve 20; the gas which accords with the test pressure sequentially passes through the first electromagnetic valve 2 and the first needle valve 30 to enter the gas meter 6 to be tested, and the time relay 3 controls the switch of the first electromagnetic valve 2. The gas in the gas meter 6 to be tested is discharged to the atmosphere through the second needle valve 40 and the pneumatic valve 7 in sequence, the gas source of the pneumatic valve 7 is controlled by the second electromagnetic valve 4, and when the second electromagnetic valve 4 is opened, the pneumatic valve 7 is controlled to be opened; the time relay 4 controls the opening and closing of the second electromagnetic valve 4.
In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the following description of the exemplary embodiments of the present application with reference to the accompanying drawings is made in further detail, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Fig. 1 shows a schematic structural diagram of a pressure resistance testing device for a gas meter according to an embodiment of the present application.
As shown in fig. 1, the embodiment of the present application provides a pressure-resistant testing device for a gas meter, including an air compressor 1, a first electromagnetic valve 2, a time relay 3, a pressure gauge 5, a pneumatic valve 7, and a second electromagnetic valve 4.
The air compressor 1 is connected with a first end of a first electromagnetic valve 2 and a first end of a second electromagnetic valve 4, and a second end of the first electromagnetic valve 2 is connected with a test inlet of a gas meter 6 to be tested; the test outlet of the gas meter to be tested 6 is connected with the first end of the pneumatic valve 7, and the second end of the pneumatic valve 7 is used as the outlet of the device.
The second end of the second electromagnetic valve 4 is connected with the switch end of the pneumatic valve 7; when the second electromagnetic valve 4 is opened, the control air-operated valve 7 is opened.
During this time, the time relay 3 is connected to the first solenoid valve 2 and the second solenoid valve 4, and the time relay 3 controls the first solenoid valve 2 and the second solenoid valve 4 to be opened and closed.
The pressure gauge 5 is connected with the gas meter 6 to be detected and used for detecting the pressure of the gas meter 6 to be detected, and the change rate of the pressure in the gas meter to be detected can be observed through the pressure gauge 5.
In some embodiments, the pressure resistance testing device for a gas meter further includes an air pressure stabilizing tank 10. The air surge tank 10 is provided between the air compressor 1 and the first electromagnetic valve 2.
In some embodiments, a pressure regulating valve 20 is also included. The pressure regulating valve 20 is provided between the air compressor 1 and the first electromagnetic valve 2.
Specifically, as shown in fig. 2, the pressure regulating valve 20 is provided between the air regulator tank 10 and the first electromagnetic valve 2.
In other embodiments of the present application, the pressure-resistant testing apparatus for a gas meter further includes a needle valve, and the needle valve is disposed at a testing inlet and/or a testing outlet of the gas meter 6 to be tested. The purpose of the needle valve is to control the pressure change rate of the inlet gas and the outlet gas, so that the gas meter 6 to be tested can be in a dynamic pressure test. The setting of this testing arrangement more laminates in the actual service environment of gas table, and the gas table can receive the pipeline pressure effect in actual use promptly, and pipeline pressure often fluctuates, rather than static pressure effect. The dynamic change of the pressure is controlled by arranging the needle valve, so that the pressure resistance of the gas meter can be more accurately detected.
Fig. 2 shows a schematic structural diagram of a pressure resistance testing device for a gas meter according to another embodiment of the present application.
As shown in fig. 2, in a specific implementation of the pressure resistance testing device for a gas meter according to the present invention, an air compressor 1 is connected to an air pressure stabilizing tank 10 and a pressure regulating valve 20 through a pipe, and then connected to a first electromagnetic valve 2.
The needle valve of the present embodiment includes a first needle valve 30 and a second needle valve 40.
As shown in fig. 2, the air compressor 1 is connected to a first end of a first electromagnetic valve 2 through a pipeline, a second end of the first electromagnetic valve 2 is connected to a first end of a first needle valve 30, and a second end of the first needle valve 30 is connected to a test inlet of the gas meter 6 to be tested; the test outlet of the gas meter to be tested 6 is connected with the first end of the second needle valve 40, and the second end of the second needle valve 40 is connected with the first end of the pneumatic valve 7. The gas is discharged to the atmosphere through the second needle valve 40 and the second end of the air-operated valve 7, and the gas supply to the air-operated valve 7 is controlled by the second solenoid valve 4.
The gas meter 6 to be tested is one gas meter or comprises a plurality of gas meters; when a plurality of gas meters are connected in series or in parallel, the detection efficiency can be increased.
In other embodiments, an alarm is also included; the alarm is connected with the pressure gauge 5, and when the value of the pressure gauge 5 exceeds a threshold value, the alarm gives an alarm. The alarm comprises indicator lights of different colors and/or a player.
The application discloses withstand voltage testing arrangement of gas table's test principle does: the air compressor generates a positive pressure air source, the positive pressure air source enters the air pressure stabilizing tank, and the air in the air pressure stabilizing tank is adjusted into air according with the test pressure through the pressure regulating valve; the gas enters the gas meter to be tested through the electromagnetic valve and the needle valve, the gas in the gas meter to be tested is discharged to the atmosphere through the needle valve and the pneumatic valve, the gas source of the pneumatic valve is controlled by the electromagnetic valve, and the time relay controls the opening and closing of the electromagnetic valve.
As shown in fig. 2: the air compressor 1 generates a positive pressure air source, the positive pressure air source enters the air pressure stabilizing tank 10 for pressure stabilization, and then the air discharged from the air pressure stabilizing tank 10 is adjusted into air meeting the testing pressure through the pressure regulating valve 20; the gas which accords with the test pressure sequentially passes through the first electromagnetic valve 2 and the first needle valve 30 to enter the gas meter 6 to be tested, and the time relay 3 controls the switch of the first electromagnetic valve 2. The gas in the gas meter 6 to be tested is exhausted to the atmosphere through the second needle valve 40 and the pneumatic valve 7 in sequence, the gas source of the pneumatic valve 7 is controlled by the second electromagnetic valve 4, and when the second electromagnetic valve 4 is opened, the pneumatic valve 7 is controlled to be opened; at the same time, the time relay 4 also controls the opening or closing of the second electromagnetic valve 4.
As shown in fig. 2, the pressure-resistant testing apparatus for a gas meter of the present application can test N gas meters, and test the N gas meters after confirming that the N gas meters are not leaked by performing an external leakage testing test, wherein the specific operation steps are as follows:
1) Opening the compressor 1 and the pressure regulating valve 4 to adjust the initial pressure to a set pressure value;
2) The on-off time of the first solenoid valve 2 and the second solenoid valve 4 is set by a time relay. The setting principle is as follows: firstly, opening a first electromagnetic valve, closing a second electromagnetic valve, and carrying out air inlet; after the test pressure is reached, the first electromagnetic valve is closed, the second electromagnetic valve is still closed at the moment, and after a certain time, the second electromagnetic valve is opened to release the pressure.
3) An air inlet stage: the first electromagnetic valve 2 is opened through a time relay, and the second electromagnetic valve 4 is closed; at this time, the pressure of the pressure gauge 5 of the gas meter to be measured 6 gradually increases from 0 to the maximum pressure.
4) After the test pressure is reached, the first solenoid valve 2 is closed, and the second solenoid valve 4 is still closed for a certain time.
5) Opening the second electromagnetic valve 4, further controlling the pneumatic valve 7 to be opened, and simultaneously closing the first electromagnetic valve 2; at this time, the gas in the gas meter 6 to be measured is discharged to the atmosphere through the second needle valve 40 and the air-operated valve 7, and is closed after a set time. The pressure at the value of the pressure gauge 5 drops from the highest pressure to 0 at this time.
6) And (5) repeatedly operating and continuing the steps 3), 4) and 5) until the required test time, increasing the gas pressure in the gas meter to be tested from 0 to the highest pressure, and then reducing the gas pressure from the highest pressure to 0.
7) And after the test is finished for a certain period, detecting the leakage of the gas meter to confirm whether the gas meter can bear the fatigue test.
In other embodiments, an alarm is also included; the alarm is connected with the pressure gauge 5, and when the value of the pressure gauge 5 exceeds a threshold value, the alarm gives an alarm through the alarm. The alarm comprises indicator lights of different colors and/or a player.
In the testing process, if the value of the pressure gauge 5 exceeds the threshold range, the alarm gives an alarm in time to inform related personnel, and the testing safety is improved.
The pressure resistance testing device for the gas meter comprises an air compressor 1, a first electromagnetic valve 2, a time relay 3, a pressure gauge 5, a pneumatic valve 7 and a second electromagnetic valve 4; specifically, the air compressor 1 is connected with a first end of a first electromagnetic valve 2 and a first end of a second electromagnetic valve 4, and a second end of the first electromagnetic valve 2 is connected with a test inlet of a gas meter 6 to be tested; a test outlet of the gas meter to be tested 6 is connected with a first end of the pneumatic valve 7, and a second end of the pneumatic valve 7 is used as a device outlet; the second end of the second electromagnetic valve 4 is connected with the switch end of the pneumatic valve 7; when the second electromagnetic valve 4 is opened, the pneumatic valve 7 is controlled to be opened; the time relay 3 is connected with the first electromagnetic valve 2 and the second electromagnetic valve 4, and the time relay 3 is used for controlling the first electromagnetic valve 2 and the second electromagnetic valve 4 to be opened and closed; the pressure gauge 5 is connected with the gas meter 6 to be detected and used for detecting the pressure of the gas meter 6 to be detected.
Through the pressure-resistant testing device for the gas meter, tests on internal pressure resistance and fatigue resistance of the meter in different testing periods under different pressures are realized, so that the safety of the meter in long-term use is ensured.
Meanwhile, when the edge sealing die is adjusted during production, or the shell material is changed, the reliability of the shell can be verified through the test. The scheme is strong in practicability, simple and convenient to operate, low in cost, capable of testing a plurality of base meters simultaneously and high in testing efficiency.
It is to be understood by those within the art that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
It should be understood that "connected" as used herein may be "directly connected" or "indirectly connected"; on the other hand, "connected" as used in this application may be a physical connection, a piping connection, or an electrical connection.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present invention. The word "if," as used herein, may be interpreted as "at \8230; \8230when" or "when 8230; \823030when" or "in response to a determination," depending on the context.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A pressure-resistant testing device for a gas meter is characterized by comprising an air compressor, a first electromagnetic valve, a time relay, a pressure gauge, a pneumatic valve and a second electromagnetic valve; in particular, the method comprises the following steps of,
the air compressor is connected with the first end of the first electromagnetic valve and the first end of the second electromagnetic valve, and the second end of the first electromagnetic valve is connected with a test inlet of the gas meter to be tested;
the test outlet of the gas meter to be tested is connected with the first end of the pneumatic valve, and the second end of the pneumatic valve is used as the outlet of the device;
the second end of the second electromagnetic valve is connected with the switch end of the pneumatic valve; when the second electromagnetic valve is opened, controlling the pneumatic valve to be opened;
the time relay is connected with the first electromagnetic valve and the second electromagnetic valve and is used for controlling the first electromagnetic valve and the second electromagnetic valve to be opened and closed;
the pressure meter is connected with the gas meter to be detected and used for detecting the pressure of the gas meter to be detected.
2. The gas meter pressure-resistant testing device of claim 1, characterized by further comprising an air pressure-stabilizing tank; the air surge tank is arranged between the air compressor and the first electromagnetic valve.
3. The gas meter pressure-resistant testing device of claim 2, characterized by further comprising a pressure regulating valve; the pressure regulating valve is arranged between the air pressure stabilizing tank and the first electromagnetic valve.
4. The pressure-resistant testing device for the gas meter as claimed in claim 1, further comprising a pressure regulating valve; the pressure regulating valve is arranged between the air compressor and the first electromagnetic valve.
5. The gas meter pressure-resistant testing device according to claim 1, wherein the gas meter to be tested comprises one or more gas meters.
6. The gas meter pressure-resistant testing device according to claim 5, wherein the plurality of gas meters are connected in series or in parallel.
7. The gas meter pressure-resistant testing device of any one of claims 1 to 6, further comprising a needle valve, wherein the needle valve is arranged at a testing inlet and/or a testing outlet of the gas meter to be tested.
8. The gas meter pressure resistance testing device according to claim 7, wherein the needle valve includes a first needle valve and a second needle valve; specifically, a second end of the first electromagnetic valve is connected with a first end of the first needle valve, and a second end of the first needle valve is connected with a test inlet of the gas meter to be tested; and a test outlet of the gas meter to be tested is connected with the first end of the second needle valve, and the second end of the second needle valve is connected with the first end of the pneumatic valve.
9. The gas meter pressure-resistant testing device according to claim 8, characterized by further comprising an alarm; the alarm is connected with the pressure gauge, and when the value of the pressure gauge exceeds a threshold value, the alarm gives an alarm.
10. The gas meter pressure resistance testing device according to claim 9, wherein the alarm comprises indicator lights and/or players of different colors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221088766.6U CN217845965U (en) | 2022-05-07 | 2022-05-07 | Pressure-resistant testing device for gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221088766.6U CN217845965U (en) | 2022-05-07 | 2022-05-07 | Pressure-resistant testing device for gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217845965U true CN217845965U (en) | 2022-11-18 |
Family
ID=84017241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221088766.6U Active CN217845965U (en) | 2022-05-07 | 2022-05-07 | Pressure-resistant testing device for gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217845965U (en) |
-
2022
- 2022-05-07 CN CN202221088766.6U patent/CN217845965U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101424581B (en) | Sealing test device and method thereof | |
| CN105606355B (en) | A method of detection aqueous vapor solenoid valve comprehensive performance | |
| CN110987324A (en) | Fuel cell air tightness testing device and testing method | |
| CN202330173U (en) | Valve pressure inspection device | |
| CN217845965U (en) | Pressure-resistant testing device for gas meter | |
| CN207976259U (en) | A kind of automation pneumatic test set | |
| KR101808710B1 (en) | Test apparatus and method for high regulator | |
| CN207396030U (en) | A kind of pressure switch service life experimental testers | |
| CN202305141U (en) | Air-tightness detecting device of gate valve | |
| CN205102989U (en) | Gas tightness automatic checkout device for battery | |
| CN212432449U (en) | Automatic leakage detection device for fuel cell stack | |
| CN213688949U (en) | Vacuum generator performance testing device | |
| CN116007862A (en) | Pipeline gas tightness test system based on PEM electrolysis heap | |
| CN213658193U (en) | Positive and negative pressure type precise air tightness detector | |
| CN114993573A (en) | One-way valve testing device and testing method | |
| CN205388531U (en) | Large -scale aqueous vapor solenoid valve detecting system that synthesizes | |
| CN112326154B (en) | Test device and test method for rapid exhaust valve for air bag type pantograph | |
| CN213022137U (en) | A airtight detecting system for hydrogen energy automobile | |
| CN210322204U (en) | High-low pressure air tightness test bench | |
| CN210400757U (en) | Full-automatic sealing test and nitrogen filling integrated machine | |
| CN107340104A (en) | Finned heat exchanger high pressure leak test plant | |
| CN114076661A (en) | Automatic leakage detection device and method for fuel cell stack | |
| CN203629819U (en) | Safety valve testing device | |
| CN203490133U (en) | Pressure pipe fitting bursting test machine | |
| CN112525446A (en) | Automatic pressure testing system for hydrogenation station equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |