CN209841307U - Sensor gas leakage detection system - Google Patents
Sensor gas leakage detection system Download PDFInfo
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- CN209841307U CN209841307U CN201920681907.7U CN201920681907U CN209841307U CN 209841307 U CN209841307 U CN 209841307U CN 201920681907 U CN201920681907 U CN 201920681907U CN 209841307 U CN209841307 U CN 209841307U
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Abstract
The utility model discloses a sensor gas leakage detection system, relate to the product test field, gas pitcher in this system, gaseous storage chamber and product test tool three loop through gas transmission pipeline intercommunication, the controller is through the switching control gas pitcher of the first solenoid valve between control gas pitcher and the gaseous storage chamber to the inflation in gaseous storage chamber, through the switching control gas storage chamber of the second solenoid valve between control gas storage chamber and the product test tool release gas to the product test tool, the atmospheric pressure value that the first standard pressure sensor of intercommunication gaseous storage chamber responded provides the control foundation for the switching of first solenoid valve, the atmospheric pressure value that the second standard pressure sensor of intercommunication product test tool end responded reflects the testing result, this system structure is simple, the cost of construction is low, the gas consumption in the testing process is lower, need not to inflate repeatedly the gaseous storage chamber, High efficiency, high automation degree of system control, and capability of avoiding product damage caused by manual operation.
Description
Technical Field
The utility model belongs to the technical field of the product test and specifically relates to a sensor gas leakage detecting system.
Background
In order to ensure the normal function of the pressure sensor, the gauge pressure sensor or the differential pressure sensor needs to perform air leakage detection in the production process. At present, a sensor manufacturer mainly adopts a special automatic pressure control instrument to directly pressurize a product testing jig provided with a pressure sensor product to be detected and then perform air leakage detection, the pressure control instrument is expensive, and the pressure control instrument repeatedly pressurizes and releases pressure in the air leakage detection process, so that the loss is easy.
SUMMERY OF THE UTILITY MODEL
The invention provides a sensor gas leakage detection system aiming at the problems and the technical requirements, the system is formed by building conventional devices, the cost is lower, the gas loss of the system is small when gas leakage detection is carried out, the gas consumption can be saved, and the production efficiency is improved.
The technical scheme of the utility model as follows:
a sensor leak detection system, comprising: the device comprises a gas tank, a gas storage cavity, a product testing jig assembled with a sensor to be detected, a first electromagnetic valve, a second electromagnetic valve, a first standard pressure sensor, a second standard pressure sensor and a controller; the gas tank is communicated with the gas storage cavity through a first gas transmission pipeline, and the first electromagnetic valve is arranged on the first gas transmission pipeline and controls the on-off of a gas path between the gas tank and the gas storage cavity; the gas storage cavity is communicated with the product testing jig through a second gas transmission pipeline, and a second electromagnetic valve is arranged on the second gas transmission pipeline and controls the on-off of a gas path between the gas storage cavity and the product testing jig; the first standard pressure sensor is communicated with the gas storage cavity and detects the gas pressure value in the gas storage cavity, and the second standard pressure sensor is communicated with a second gas transmission pipeline between the product testing jig and the second electromagnetic valve and detects the gas pressure value in the product testing jig; the controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the first standard pressure sensor and the second standard pressure sensor.
The gas leakage detection system of the sensor further comprises a human-computer interaction device, and the human-computer interaction device is connected with the controller.
The utility model has the beneficial technical effects that:
the application discloses a sensor air leakage detection system which does not adopt a special automatic pressure control instrument, but is built by the prior conventional devices, the cost is lower, the controller controls the gas tank to charge the gas storage cavity by controlling the opening and closing of the first electromagnetic valve, the controller controls the gas storage cavity to release gas to the product testing jig by controlling the opening and closing of the second electromagnetic valve, the gas tank does not directly provide gas pressure to the product testing jig, but passes through the gas storage cavity firstly, only a small amount of gas at the product testing jig end is lost during each detection, the rest gas in the gas storage cavity is not lost, the total gas consumption of the whole system is lower, the efficiency is improved, and need not to aerify repeatedly to the gas storage chamber, reduced the gas pitcher and used the loss, the control of system is accomplished by the controller, and degree of automation is high, can avoid the manual operation to cause the product to damage.
Drawings
Fig. 1 is a system architecture diagram of a sensor air leak detection system as disclosed herein.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
The application discloses sensor gas leakage detecting system please refer to fig. 1, and this sensor gas leakage detecting system includes: the gas tank 1, the gas storage cavity 2, the product test fixture 3 equipped with the sensor to be detected, a first gas transmission pipeline 4, a first electromagnetic valve 5, a second gas transmission pipeline 6, a second electromagnetic valve 7, a first standard pressure sensor 8, a second standard pressure sensor 9 and a controller 10. The gas tank 1 and the gas storage cavity 2 are communicated through a first gas transmission pipeline 4 and are sealed outwards, the gas tank 1 is an existing conventional gas storage tank, and the gas storage cavity 2 is a sealed cavity body with unlimited structure and shape. The first electromagnetic valve 5 is arranged on the first gas transmission pipeline 4 and controls the on-off of a gas path between the gas tank 1 and the gas storage cavity 2. The gas storage cavity 2 and the product testing jig 3 are communicated through the second gas transmission pipeline 6 and are sealed to the outside, the product testing jig 3 is conventional use equipment in the existing sensor gas leakage detection process, the specific structure of the product testing jig 3 is not changed in the application, the structure of the product testing jig is not described in detail in the field, and a sensor to be detected assembled in the product testing jig 3 is not shown in fig. 1. The second electromagnetic valve 7 is arranged on the second gas transmission pipeline 6 and controls the on-off of the gas path between the gas storage cavity 2 and the product testing jig 3. First standard pressure sensor 8 communicates gaseous storage chamber 2 and detects the gas pressure value in gaseous storage chamber 2, and first standard pressure sensor 8 can directly assemble on gaseous storage chamber 2 and visit into it inside, also can communicate gaseous storage chamber 2 through gas transmission pipeline, also can directly set up inside gaseous storage chamber 2, and this application does not do the injecion. Second standard pressure sensor 9 communicates second gas transmission pipeline 6 between product test fixture 3 and second solenoid valve 7 and detects the gas pressure value in product test fixture 3, and similar with first standard pressure sensor 8, second standard pressure sensor 9's concrete setting mode has the multiple, and this application is no longer repeated in detail. Controller 10 electric connection first solenoid valve 5, second solenoid valve 7, first standard pressure sensor 8 and second standard pressure sensor 9, controller 10 can directly adopt commercially available PLC controller, and this application is not repeated its specific circuit structure. In practical application, the sensor gas leakage detection system further comprises a human-computer interaction device 11, the human-computer interaction device 11 is connected with the controller 10, the human-computer interaction device 11 may be an existing commercially available device such as a touch screen, and the display of the system parameters may be performed while the user is facilitated to perform custom configuration of the system parameters.
The sensor air leakage detection system disclosed by the application does not adopt a special automatic pressure control instrument, but is built by adopting the conventional devices, and the cost is lower. In this system, the switching of first solenoid valve 5 of controller 10 control and second solenoid valve 7, thereby control gas pitcher 1 to aerifing of gas storage chamber 2 and gas storage chamber 2 to product test fixture 3 aerify, gas pitcher 1 does not directly provide atmospheric pressure for product test fixture 3, but earlier through gas storage chamber 2, also promptly with gaseous storage chamber 2 in then by gas storage chamber 2 provide atmospheric pressure for product test fixture 3, avoid the action of gas pitcher 1 frequent gassing of filling, reduce the loss of use of gas pitcher 1, and control process automation degree is high, avoided the manual operation to cause the product to damage. First standard pressure sensor 8 can respond to the atmospheric pressure value in the gaseous storage chamber 2 to for gas pitcher 1 provides the data basis to the opportunity of aerifing of gaseous storage chamber 2, thereby the atmospheric pressure value that second standard pressure sensor 9 response product test fixture 3 held can obtain the result that leaks gas and detect. The first electromagnetic valve 5 is opened when the gas tank 1 charges gas into the gas storage cavity 2 and is closed after the charging is finished; the second solenoid valve 7 is closed when waiting to detect the sensor loading and unloading, open after waiting to detect the sensor and accomplish the assembly, store chamber 2 at the gas, it closes after reaching atmospheric pressure balance between second gas transmission pipeline 6 and the product test tool 3, controller 10 can judge according to the pressure value of second standard pressure sensor 9 this moment and wait to detect the sensor and leak gas, after accomplishing to wait to detect the gas leakage detection of sensing to current assembly, dismantle waiting to detect the sensor to current assembly, then assemble next and wait to detect the sensor, only lose a small amount of gas at product test tool 3 end when detecting each time, all the other gases in the gas storage chamber 2 are lossless, consequently, need not to store chamber 2 to aerify repeatedly, total gas consumption of entire system is lower, and efficiency is improved. Only when detecting the atmospheric pressure value in gaseous storage chamber 2 through first standard pressure sensor 8 and reducing to preset threshold value, show that the gas in gaseous storage chamber 2 has almost consumed through many rounds of detection back, this preset threshold value is the user-defined value, controller 10 control first solenoid valve 5 opens once more this moment, gas pitcher 1 is aerifyd gaseous storage chamber 2, inflate first solenoid valve 5 and close once more after accomplishing, avoid gas pitcher 1 to frequently fill the action of gassing, reduce the loss of use of gas pitcher 1. It should be noted that what is claimed in the present application is a hardware architecture of the system, and how the controller specifically controls the process does not belong to the protection scope of the present application, and based on the hardware architecture disclosed in the present application, a person skilled in the art can determine the working process in the system without question, that is, as described above.
What has been described above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and scope of the present invention are to be considered as included within the scope of the present invention.
Claims (2)
1. A sensor leak detection system, comprising: the device comprises a gas tank, a gas storage cavity, a product testing jig assembled with a sensor to be detected, a first electromagnetic valve, a second electromagnetic valve, a first standard pressure sensor, a second standard pressure sensor and a controller; the gas tank is communicated with the gas storage cavity through a first gas transmission pipeline, and the first electromagnetic valve is arranged on the first gas transmission pipeline and controls the on-off of a gas path between the gas tank and the gas storage cavity; the gas storage cavity is communicated with the product testing jig through a second gas transmission pipeline, and the second electromagnetic valve is arranged on the second gas transmission pipeline and controls the on-off of a gas path between the gas storage cavity and the product testing jig; the first standard pressure sensor is communicated with the gas storage cavity and detects the gas pressure value in the gas storage cavity, and the second standard pressure sensor is communicated with the second gas transmission pipeline between the product testing jig and the second electromagnetic valve and detects the gas pressure value in the product testing jig; the controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the first standard pressure sensor and the second standard pressure sensor.
2. The sensor gas leakage detection system according to claim 1, further comprising a human-computer interaction device, wherein the human-computer interaction device is connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681907.7U CN209841307U (en) | 2019-05-13 | 2019-05-13 | Sensor gas leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681907.7U CN209841307U (en) | 2019-05-13 | 2019-05-13 | Sensor gas leakage detection system |
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| Publication Number | Publication Date |
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| CN209841307U true CN209841307U (en) | 2019-12-24 |
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| CN201920681907.7U Active CN209841307U (en) | 2019-05-13 | 2019-05-13 | Sensor gas leakage detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358301A (en) * | 2021-07-28 | 2021-09-07 | 深圳市联兴泰软件技术有限公司 | Gas leakage detection device and method between main and auxiliary fuel gas electromagnetic valves |
| CN113405744A (en) * | 2021-06-16 | 2021-09-17 | 重庆科技学院 | Automatic detection system for air tightness of box |
-
2019
- 2019-05-13 CN CN201920681907.7U patent/CN209841307U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405744A (en) * | 2021-06-16 | 2021-09-17 | 重庆科技学院 | Automatic detection system for air tightness of box |
| CN113358301A (en) * | 2021-07-28 | 2021-09-07 | 深圳市联兴泰软件技术有限公司 | Gas leakage detection device and method between main and auxiliary fuel gas electromagnetic valves |
| CN113358301B (en) * | 2021-07-28 | 2023-10-20 | 深圳市联兴泰软件技术有限公司 | Gas leakage detection device and method between valves of gas main and auxiliary electromagnetic valves |
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