Batch pressing device of SF6 density micro-water sensor

Abstract

The utility model belongs to the technical field of test tools for SF6 density micro-water sensors, and particularly relates to a batch pressing device for SF6 density micro-water sensors, which comprises a high-pressure gas tank, a high-pressure gas pipe, a pressing device main body and a leak detection module, the two ends of the high-pressure air pipe are connected with the high-pressure air tank and the pressurizing device body respectively, a main air path and a plurality of branches are arranged in the pressurizing device body, and each branch is provided with a connector used for being connected with a to-be-tested sensor; the high-pressure gas tank conveys high-pressure gas to a main gas path in the pressurizing device body through a high-pressure gas pipe, and a pressure reducing valve used for adjusting the pressure of the high-pressure gas is arranged on the high-pressure gas pipe. The leak detection module is used for monitoring the pressure change of the main gas path or each branch in real time; the problems that in the prior art, an SF6 sensor pressure test is low in efficiency and high in cost, and batch operation cannot be achieved are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of test fixtures for SF6 density micro-water sensors, specifically relating to a batch pressurization device for SF6 density micro-water sensors. Background Technology

[0002] In GIS switchgear, SF6 density moisture online monitoring sensors need to operate in an atmospheric pressure environment of 0.6 MPa or even higher. Therefore, these sensors must pass a high-pressure test before being put into use in substations. Currently, the pressure test of SF6 density moisture sensors has the following problems:

[0003] 1. Low testing efficiency: Traditional test fixtures are usually for single-piece testing, requiring sensors to be installed one by one for testing, resulting in low testing efficiency and making it difficult to meet the testing needs of large-scale sensors.

[0004] 2. High cost: There are various types of testing fixtures on the market, but their adaptability is poor, and companies need to purchase related equipment separately;

[0005] 3. Long cycle: The testing process for a single sensor is complicated, resulting in a long overall testing cycle. Utility Model Content

[0006] The purpose of this invention is to provide a batch pressure testing device for SF6 density micro-water sensors, so as to solve the problems of low pressure testing efficiency, high cost, and inability to perform batch operation of existing SF6 sensors.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A mass production pressure testing device for SF6 density micro-moisture sensors includes a high-pressure gas tank, a high-pressure gas pipe, a pressure testing device body, and a leak detection module. The two ends of the high-pressure gas pipe are connected to the high-pressure gas tank and the pressure testing device body, respectively. The pressure testing device body has a main gas path and multiple branch paths internally, each branch path having an interface for connecting the sensor under test. The high-pressure gas tank supplies high-pressure gas to the main gas path inside the pressure testing device body through the high-pressure gas pipe. The high-pressure gas pipe is equipped with a pressure reducing valve for adjusting the high-pressure gas pressure. The leak detection module is used to monitor pressure changes in the main gas path or each branch path in real time.

[0009] Furthermore, the leak detection module includes a pressure sensor and a data acquisition unit. The pressure sensor is installed on the main air line of the main body of the pressurization device. The pressure sensor is used to detect the pressure value of the main air line in real time and send a signal to the data acquisition unit. The data acquisition unit is used to receive and store the signal sent by the pressure sensor.

[0010] Furthermore, the leak detection module includes a pressure sensor and a data acquisition unit. A pressure sensor is installed on each branch. The pressure sensor is used to detect the pressure value of each branch in real time and send a signal to the data acquisition unit. The data acquisition unit is used to receive and store the signals sent by the pressure sensor.

[0011] Furthermore, multiple interfaces are evenly distributed on both sides of the main body of the pressure testing device, and each interface is equipped with a self-sealing connector.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] 1. This utility model, by setting multiple interfaces on the main body of the pressure device, can simultaneously install multiple SF6 density micro-moisture sensors, realizing batch testing. Compared with traditional test fixtures that can only test single items, it greatly improves test efficiency and shortens the test cycle.

[0014] 2. The pressure testing device of this utility model has a simple structure and is easy to operate. It can quickly complete the pressure test and can be assembled and modified by the company's existing equipment, reducing the investment cost of the equipment.

[0015] 3. This utility model effectively improves the accuracy and reliability of the test by monitoring and recording pressure data in real time through a leak detection module, and avoids human error. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] In the diagram: 1. High-pressure gas tank; 2. High-pressure gas pipe; 3. Main body of pressurization device; 4. Self-sealing connector; 5. Pressure reducing valve. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] Example 1

[0020] like Figure 1As shown, a batch pressurization device for an SF6 density micro-moisture sensor includes a high-pressure gas tank 1, a high-pressure gas pipe 2, a pressurization device body 3, and a leak detection module. The two ends of the high-pressure gas pipe 2 are connected to the high-pressure gas tank 1 and the pressurization device body 3, respectively. The pressurization device body 3 has a main gas path and multiple branch paths inside, each branch path having an interface evenly distributed on both sides of the pressurization device body 3. Each interface is threaded with a self-sealing connector 4, which is used to install the sensor to be tested. The high-pressure gas tank 1 supplies high-pressure gas to the main gas path inside the pressurization device body 3 through the high-pressure gas pipe 2. The high-pressure gas pipe 2 is equipped with a pressure reducing valve 5 for adjusting the high-pressure gas pressure. The leak detection module is used to monitor the pressure changes in the main gas path or each branch path in real time. The leak detection module includes a pressure sensor and a data acquisition unit. The pressure sensor is installed on the main gas path of the pressurization device body 3 and is used to detect the pressure value of the main gas path in real time and send a signal to the data acquisition unit. The data acquisition unit is used to receive and store the signal sent by the pressure sensor.

[0021] When using the pressure testing device of this embodiment for testing, the specific operation is as follows:

[0022] The SF6 density micro-moisture sensors to be tested are installed in batches on each self-sealing joint 4 of the main body 3 of the pressure testing device, ensuring that all the sensors under test are tightly connected to the interface to prevent gas leakage. The valve of the high-pressure gas tank 1 is opened, and the high-pressure gas is adjusted to the required pressure through the pressure reducing valve 5 and then enters the main gas path inside the main body 3 of the pressure testing device through the high-pressure gas pipe 2, and then applied to the corresponding sensors under test through each branch. When the gas pressure reaches the predetermined value, the valve of the high-pressure gas tank 1 is closed to keep the pressure inside the main body 3 of the pressure testing device stable. After closing the valve, the main body 3 of the pressure testing device is leak-tested to ensure that there is no gas leakage. After standing for 24 hours, the pressure change of the main gas path is monitored by the pressure sensor of the leak detection module. If there is no pressure change, it means that all SF6 density micro-moisture sensors are qualified.

[0023] The pressure testing device in this embodiment can simultaneously test multiple SF6 density micro-moisture sensors, greatly improving testing efficiency and shortening the testing cycle. It is suitable for batch rapid testing, has good testing efficiency, and can effectively control equipment investment costs. Furthermore, the device has a simple structure, is easy and quick to operate, and can be modified and assembled using existing equipment, eliminating the need to purchase external testing equipment and further reducing costs.

[0024] Example 2

[0025] The difference between this embodiment and Embodiment 1 is that a pressure sensor is installed on each branch. The pressure sensor is used to detect the pressure value of each branch in real time and send a signal to the data acquisition unit.

[0026] In this embodiment, the pressure testing device detects the pressure changes of each branch through pressure sensors during the testing process. If the pressure of a branch does not change, it indicates that the SF6 density micro-moisture sensor corresponding to that branch is qualified.

[0027] Compared to Example 1, this embodiment can accurately determine whether each SF6 density micro-moisture sensor in the same batch is qualified, and the test data is highly accurate.

[0028] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A batch pressurization device for SF6 density micro-moisture sensors, characterized in that: It includes a high-pressure gas tank (1), a high-pressure gas pipe (2), a pressure testing device body (3), and a leak detection module; the two ends of the high-pressure gas pipe (2) are connected to the high-pressure gas tank (1) and the pressure testing device body (3) respectively. The pressure testing device body (3) has a main gas path and multiple branch paths inside, and each branch path is equipped with an interface for connecting the sensor to be tested; the high-pressure gas tank (1) delivers high-pressure gas to the main gas path inside the pressure testing device body (3) through the high-pressure gas pipe (2), and the high-pressure gas pipe (2) is equipped with a pressure reducing valve (5) for adjusting the pressure of the high-pressure gas; the leak detection module is used to monitor the pressure changes of the main gas path or each branch path in real time.

2. The batch pressing device according to claim 1, characterized in that: The leak detection module includes a pressure sensor and a data acquisition unit. The pressure sensor is installed on the main air line of the main body (3) of the pressure device. The pressure sensor is used to detect the pressure value of the main air line in real time and send a signal to the data acquisition unit. The data acquisition unit is used to receive and store the signal sent by the pressure sensor.

3. The batch pressing device according to claim 1, characterized in that: The leak detection module includes a pressure sensor and a data acquisition unit. A pressure sensor is installed on each branch. The pressure sensor is used to detect the pressure value of each branch in real time and send a signal to the data acquisition unit. The data acquisition unit is used to receive and store the signals sent by the pressure sensor.

4. The batch pressing device according to any one of claims 1-3, characterized in that: Multiple interfaces are evenly distributed on both sides of the main body (3) of the pressurizing device, and each interface is provided with a self-sealing connector (4).

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