Gas supply system
By setting up a return pipeline and related valves in the gas supply system, the pipeline damage caused by gas expansion is solved, and the safe supply of gas and production safety is achieved.
Patent Information
- Application Number
- CN202422055433.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In existing gas supply systems, the expansion of gas in the pipeline causes pipeline damage, especially in hot weather.
A gas supply system is designed. By setting up a return pipeline, when the gas expands in the conveying pipeline, the expanded gas will be transported back to the gas storage tank through the reflux pipeline to prevent the gas from expanding continuously in the conveying pipeline. The return pipe is provided with a check valve and a fire arrester to prevent gas return and combustion caused by excessive temperature.
It effectively prevents the continuous expansion of gas in the conveying pipeline, prevents pipeline damage, and prevents flames from spreading through fire arresters, ensuring production safety.
Smart Images
Figure CN222963746U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas supply, and particularly relates to a gas supply system. Background Art
[0002] In the prior art, chemical plants usually build large gas storage tanks outdoors and supply gas to gas-using equipment through pipelines, such as conventional hydrogen refueling stations. However, in actual use, when the gas supply is interrupted, there will be residual gas in the pipeline, and the pipeline will transfer the heat outdoors to the gas, causing the gas to continuously expand and damage the pipeline. Especially in hot weather, this situation is particularly serious. Content of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a gas supply system, which can avoid the gas expanding in the pipeline and damaging the pipeline.
[0004] A gas supply system according to the utility model includes a gas storage tank, a gas-using equipment, a ball valve and a return pipeline. The input end of the ball valve is connected to the output end of the gas storage tank through an output pipeline, and the output end of the ball valve is connected to the input end of the gas-using equipment through a first conveying pipeline. The input end of the return pipeline is connected to the first conveying pipeline, and the output end of the return pipeline is connected to the gas storage tank. A flame arrester is arranged at one end of the return pipeline close to the first conveying pipeline, and a check valve is arranged at one end of the return pipeline close to the gas storage tank.
[0005] The gas supply system according to the above embodiment of the utility model has at least the following beneficial effects:
[0006] The gas supply system provided by the embodiment of the utility model is provided with a return pipeline. When the gas in the first conveying pipeline expands, the pressure generated by the expansion will force the gas to be conveyed to the gas storage tank through the return pipeline, so as to avoid the continuous expansion of the gas in the first conveying pipeline. A check valve is arranged on the return pipeline to avoid the phenomenon of gas backflow. A flame arrester is arranged on the return pipeline to avoid the gas burning when the temperature is too high and the flame spreading along the return pipeline to the gas storage tank, thus preventing the occurrence of major accidents and ensuring production safety.
[0007] According to some embodiments of the utility model, a buffer tank is arranged between the gas storage tank and the gas-using equipment. The input end of the buffer tank is connected to the output end of the gas storage tank through the first conveying pipeline, and the output end of the buffer tank is connected to the input end of the gas-using equipment through a second conveying pipeline.
[0008] According to some embodiments of the present utility model, a cooling pool is provided between the buffer tank and the gas-using device, and the second conveying pipeline sequentially passes through the input end and the output end of the cooling pool.
[0009] According to some embodiments of the present utility model, a pressure regulating valve is provided on the second conveying pipeline, and the pressure regulating valve is arranged between the cooling pool and the gas-using device.
[0010] According to some embodiments of the present utility model, a pressure gauge is provided on the first conveying pipeline.
[0011] According to some embodiments of the present utility model, an air pump is provided at the output end of the gas storage tank.
[0012] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The following further describes the present utility model in conjunction with the drawings and embodiments, wherein:
[0014] Figure 1 is a schematic structural diagram of a gas supply system according to some embodiments of the present utility model;
[0015] Figure 2 is Figure 1 an enlarged view of part A in
[0016] Among them, reference numerals:
[0017] gas storage tank 100; ball valve 110; output pipeline 120; first conveying pipeline 130; return pipeline 140; flame arrester 150; check valve 160; pressure gauge 170;
[0018] gas-using device 200; second conveying pipeline 210; pressure regulating valve 220;
[0019] buffer tank 300;
[0020] cooling pool 400. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The embodiments of the present utility model are described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.
[0022] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the orientations or positional relationships indicated by up, down, front, back, left, right, etc., they are based on the orientations or positional relationships shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0023] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, while understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.
[0024] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution. In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0025] Refer to Figure 1 and Figure 2, A gas supply system proposed according to the present utility model includes a gas storage tank 100, a gas-using device 200, a ball valve 110, and a return pipeline 140. The input end of the ball valve 110 is connected to the output end of the gas storage tank 100 through an output pipeline 120, and the output end of the ball valve 110 is connected to the input end of the gas-using device 200 through a first conveying pipeline 130; the input end of the return pipeline 140 is connected to the first conveying pipeline 130, the output end of the return pipeline 140 is connected to the gas storage tank 100, a flame arrester 150 is provided at one end of the return pipeline 140 close to the first conveying pipeline 130, and a check valve 160 is provided at one end of the return pipeline 140 close to the gas storage tank 100.
[0026] Specifically, the gas supply system provided by the embodiment of the present utility model can avoid continuous expansion of gas in the first conveying pipeline 130 by setting the return pipeline 140. When the gas in the first conveying pipeline 130 expands, the pressure generated by the expansion will force the gas to be transported to the gas storage tank 100 through the return pipeline 140. A check valve 160 is provided in the return pipeline 140 to avoid gas backflow, and a flame arrester 150 is provided in the return pipeline 140 to prevent the gas from burning when the temperature is too high and the flame from spreading along the return pipeline 140 into the gas storage tank 100, thereby preventing major accidents and ensuring production safety.
[0027] Further, referring to Figure 1 , according to some embodiments of the present utility model, a buffer tank 300 is provided between the gas storage tank 100 and the gas-using device 200. The input end of the buffer tank 300 is connected to the output end of the gas storage tank 100 through the first conveying pipeline 130, and the output end of the buffer tank 300 is connected to the input end of the gas-using device 200 through a second conveying pipeline 210.
[0028] Specifically, after the gas supply is interrupted, the remaining gas can be stored in the buffer tank 300. When the gas in the first conveying pipeline 130 expands, it can also be introduced into the buffer tank 300 for storage under the action of pressure. Valves can be provided at both the input end and the output end of the buffer tank 300.
[0029] Further, referring to Figure 1 , according to some embodiments of the present utility model, a cooling pool 400 is provided between the buffer tank 300 and the gas-using device 200, and the second conveying pipeline 210 passes through the input end and the output end of the cooling pool 400 in sequence.
[0030] Specifically, during the gas transportation process, the high temperature of the outside world may be transferred to the gas through the pipeline. By passing the second conveying pipeline 210 through the cooling pool 400, the gas in the second conveying pipeline 210 can be cooled to meet the use requirements of the gas-using device 200.
[0031] Further, referring to Figure 1 , according to some embodiments of the present utility model, a pressure regulating valve 220 is provided on the second conveying pipeline 210. The pressure regulating valve 220 is arranged between the cooling tank 400 and the gas-using device 200. By providing the pressure regulating valve 220, the pressure of the gas output can be adjusted.
[0032] Further, referring to Figure 1 , according to some embodiments of the present utility model, a pressure gauge 170 is provided on the first conveying pipeline 130 to facilitate real-time monitoring of the gas pressure in the first conveying pipeline 130.
[0033] Further, according to some embodiments of the present utility model, an air pump is provided at the output end of the gas storage tank 100 to control the gas output of the gas storage tank 100.
[0034] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present utility model.
Claims
1. A gas supply system, characterized in that: include: gas tank; Gas-using equipment; A ball valve, wherein the input end of the ball valve is connected to the output end of the gas storage tank through an output pipeline, and the output end of the ball valve is connected to the input end of the gas-using equipment through a first delivery pipeline; A return pipe, wherein the input end of the return pipe is connected to the first delivery pipe, the output end of the return pipe is connected to the gas storage tank, a flame arrester is provided at one end of the return pipe close to the first delivery pipe, and a one-way valve is provided at one end of the return pipe close to the gas storage tank.
2. The gas supply system according to claim 1, characterized in that: A buffer tank is provided between the gas storage tank and the gas-using equipment, the input end of the buffer tank is connected to the output end of the gas storage tank through the first delivery pipeline, and the output end of the buffer tank is connected to the input end of the gas-using equipment through the second delivery pipeline.
3. The gas supply system according to claim 2, characterized in that: A cooling pool is provided between the buffer tank and the gas-consuming equipment, and the second delivery pipeline passes through the input end and the output end of the cooling pool in sequence.
4. The gas supply system according to claim 3, characterized in that: The second delivery pipeline is provided with a pressure regulating valve, and the pressure regulating valve is arranged between the cooling pool and the gas-using equipment.
5. The gas supply system according to claim 1, characterized in that: The first delivery pipeline is provided with a pressure gauge.
6. The gas supply system according to claim 1, characterized in that: An air pump is arranged at the output end of the air storage tank.