Mixed gas pipeline device

Abstract

The utility model belongs to the technical field of pipeline leak detection auxiliary devices, and particularly relates to a mixed gas pipeline device which comprises a pipeline body, a pressure release valve is installed at the head end of the pipeline body, a compressed air inlet valve is installed at the tail end of the pipeline body, and a three-way pipe is installed at the position, close to the compressed air inlet valve, of the pipeline body. According to the leakage detection pipeline, compressed air and hydrogen can be uniformly mixed and then input into the leakage detection pipeline, the hydrogen content of the leakage detection pipeline is more stable, and the leakage detection efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline leak detection auxiliary devices, specifically relating to a mixed gas pipeline device. Background Technology

[0002] In the process of transporting gaseous or liquid media, pressure pipes are required as channels for transporting the media. Since pressure pipes operate under certain pressure conditions for a long time, in order to ensure the safety of the pressure pipes, detectors are needed to detect leaks in the pipes. During leak detection, an air compressor is used to fill the pressure pipes with air and hydrogen, so that the hydrogen content in the pressure pipes reaches 0.05%-0.1% for hydrogen identification instruments to identify. Depending on the detection requirements, after the pressure in the pressure pipes reaches 0.6Mpa-1.2Mpa, a mixed gas with a hydrogen content of 0.05%-0.1% flows out from the leak point, and the leak location is identified using a hydrogen identification instrument.

[0003] However, in the existing technology, when filling the pressure pipeline with air and hydrogen, the air and hydrogen are not mixed evenly enough, resulting in unstable hydrogen content, which affects the accuracy of leak detection. Utility Model Content

[0004] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a mixed gas pipeline device to solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A mixed gas pipeline device includes a pipeline body, a pressure relief valve installed at the first end of the pipeline body, a compressed air inlet valve installed at the end of the pipeline body, a tee pipe installed near the compressed air inlet valve on the pipeline body, two ports of the tee pipe being connected to the pipeline body, and a hydrogen inlet valve installed on the other port.

[0007] Furthermore, a pressure gauge is installed on the pipeline body between the pressure relief valve and the three-way pipe.

[0008] Furthermore, a one-way valve is installed in the pipeline body between the pressure gauge and the three-way pipe.

[0009] Compared with the prior art, this utility model has the following advantages:

[0010] 1. This utility model can mix compressed air and hydrogen evenly before introducing them into the leak detection pipeline, resulting in a more stable hydrogen content and effectively improving leak detection efficiency;

[0011] 2. This utility model is equipped with a pressure gauge, which can display the pressure value in the pipeline in real time, so as to facilitate the adjustment of the operating parameters;

[0012] 3. This utility model is equipped with a pressure relief valve, which can release pressure when the leak detection operation is completed, so as to avoid the pipeline pressure rebounding during disassembly and accidentally injuring the workers, thus ensuring the safety of the workers;

[0013] 4. This utility model is equipped with a one-way valve, which can prevent residual water in the pipeline from flowing back into the leak detection equipment when disassembling after the leak detection work is completed, thus preventing damage to the equipment and ensuring the safety of the working equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of a mixed gas pipeline device according to the present invention;

[0015] The reference numerals in the accompanying drawings include:

[0016] Pipeline body 1, pressure relief valve 2, compressed air inlet valve 3, tee pipe 4, hydrogen inlet valve 5, pressure gauge 6. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0019] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example:

[0022] like Figure 1 As shown, the present invention discloses a mixed gas pipeline device, comprising a pipeline body 1, a pressure relief valve 2 installed at the first end of the pipeline body 1, a compressed air inlet valve 3 installed at the end of the pipeline body 1, a three-way pipe 4 installed near the compressed air inlet valve 3, two ports of the three-way pipe 4 being connected to the pipeline body 1, and a hydrogen inlet valve 5 installed on the other port, a pressure gauge 6 installed on the pipeline body 1 between the pressure relief valve 2 and the three-way pipe 4, and a one-way valve installed inside the pipeline body 1 between the pressure gauge 6 and the three-way pipe 4.

[0023] When using this device, the compressed air inlet valve 3 is connected to the air compressor, the hydrogen inlet valve 5 is connected to the hydrogen generator, and the pipeline body 1 at one end of the pressure relief valve 2 is connected to the leak detection pipeline network. When the pressure relief valve 2 is closed, the air compressor and the hydrogen generator are turned on. The compressed air and hydrogen are mixed at the junction of the three-way pipe 4, and then input into the leak detection pipeline network through the pipeline body 1 for leak detection.

[0024] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These 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.

Claims

1. A mixed gas piping device characterized by comprising: The utility model relates to a kind of compressed air pipeline, including pipeline body, the pipeline body first end is equipped with pressure relief valve, the pipeline body end is equipped with compressed air inlet valve, the pipeline body is equipped with three-way pipe near compressed air inlet valve, two interfaces of the three-way pipe are communicated with pipeline body, another interface is equipped with hydrogen inlet valve.

2. A mixed gas line set as defined in claim 1, wherein: Pressure gauge is installed between the pipeline body of the pressure relief valve and three-way pipe.

3. A mixed gas line set as defined in claim 2, wherein: One-way valve is installed in the pipeline body between the pressure gauge and three-way pipe.

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