Gas supply system and gas simulation generation device

Abstract

The utility model discloses a gas supply system and a gas simulation generation device, the gas supply system comprises a front-end gas supply pipeline and at least two rear-end gas supply pipelines arranged in parallel, and the front-end gas supply pipeline is communicated with the rear-end gas supply pipelines; the front-end air supply pipeline comprises a filter, a three-way ball valve and a one-way valve I which are sequentially communicated through a pipeline; the rear-end air supply pipeline comprises a needle valve, a pressure reducing valve, an electromagnetic valve I and a one-way valve II which are sequentially communicated through a pipeline; the gas simulation generation device comprises a case and a gas supply system. The gas supply device is convenient to operate, can output gas sources with different pressures, can meet the gas supply requirements of various gas supply environments, can simulate explosive gas generated by various gas generators, and can complete a gas dynamics test on the influence of the gas generators on other equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of gas source equipment, in particular to a gas supply system and a gas simulation generating device. Background Technique

[0002] At present, numerical simulation technology is generally used at home and abroad to analyze the impact force of a gas generator on other equipment, and semi-physical simulation and physical simulation cannot be carried out. Therefore, a device that can output high-pressure gas with multiple pressures in a short time is of great significance for studying the impact of a gas generator on other equipment. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects, provide a gas supply system and a gas simulation generating device, which are convenient to operate, can output gas sources with different pressures, can meet the gas supply requirements of various gas supply environments, can realize the simulation of explosive gases generated by various gas generators, and complete the aerodynamic test of the impact of the gas generator on other equipment, and can effectively solve the problems in the background technique.

[0004] To achieve the above object, the utility model provides the following technical scheme: A gas supply system includes a front-end gas supply pipeline and at least two parallel rear-end gas supply pipelines, and the front-end gas supply pipeline is communicated with the rear-end gas supply pipeline; the front-end gas supply pipeline includes a filter, a three-way ball valve and a check valve I connected in sequence through pipelines; the rear-end gas supply pipeline includes a needle valve, a pressure reducing valve, a solenoid valve I and a check valve II connected in sequence through pipelines.

[0005] Preferably, a high-pressure gas cylinder is further communicated with the front-end gas supply pipeline. The high-pressure gas cylinder is located at the front end of the needle valve and the rear end of the check valve I, and the inlet of the high-pressure gas cylinder is communicated with a gas cylinder valve; a pressure gauge is provided on the front-end gas supply pipeline, and the pressure gauge is located at the rear end of the check valve I.

[0006] Preferably, a pressure sensor I and a pressure sensor II are provided on the rear-end gas supply pipeline, and the pressure sensor I and the pressure sensor II are correspondingly located at the front end and the rear end of the pressure reducing valve; a vent pipe is further communicated with the rear-end gas supply pipeline. The vent pipe is located at the rear end of the check valve II, and a solenoid valve II is provided on the vent pipe.

[0007] Preferably, it further includes a PLC controller. The PLC controller collects the pressure signals of the pressure sensor I and the pressure sensor II, and the PLC controller also controls the on-off of the solenoid valve I and the solenoid valve II.

[0008] A gas simulation generating device includes a chassis and the above-mentioned gas supply system. Universal wheels with locking functions are provided at the four corners of the bottom of the chassis.

[0009] Preferably, it further includes a display screen, which is arranged on the upper panel of the chassis and is communicatively connected to the PLC controller of the gas supply system.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: External high-pressure nitrogen (≤21 MPa) is filtered by a filter, passes through a three-way ball valve, and is used to inflate a high-pressure gas cylinder or directly supply gas to the rear end. The input nitrogen is divided into two paths and controlled by needle valves respectively. The pressure of the gas cylinder / pipeline can be read through a pressure sensor; it is reduced to the required output pressure through a pressure reducing valve and controlled to output externally through an output solenoid valve; it can output gas sources with different air pressures, can meet the gas supply requirements of various gas supply environments, and can simulate the explosive gases generated by various gas generators to complete the aerodynamic test of the impact of the gas generator on other equipment. Description of the Drawings

[0011] Figure 1 It is a pipeline diagram of the gas supply system.

[0012] In the figure: 1 filter, 2 three-way ball valve, 3 check valve I, 4 pressure gauge, 5 gas cylinder valve, 6 high-pressure gas cylinder, 7 needle valve, 8 pressure sensor I, 9 pressure reducing valve, 10 pressure sensor II, 11 solenoid valve I, 12 solenoid valve II, 13 check valve II. Detailed Embodiments

[0013] The present utility model can be explained in detail through the following embodiments. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, it is only corresponding to the drawings of the present application for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0014] Please refer to Figure 1 , the present utility model provides the following technical solutions:

[0015] Embodiment 1: A gas supply system includes a front-end gas supply pipeline and at least two parallel rear-end gas supply pipelines, and the front-end gas supply pipeline is connected to the rear-end gas supply pipelines; the front-end gas supply pipeline includes a filter 1, a three-way ball valve 2, and a check valve I 3 connected in sequence through pipelines; the rear-end gas supply pipeline includes a needle valve 7, a pressure reducing valve 9, a solenoid valve I 11, and a check valve II 13 connected in sequence through pipelines.

[0016] In the front-end gas supply pipeline, the filter 1 is used to filter the gas. One of the interfaces of the three-way ball valve 2 is connected to the vent pipe, which is convenient for venting the remaining gas in the input pipeline to avoid pressurized operation. The function of the one-way valve 3 is to conduct unidirectionally and prevent the gas source from flowing back. In the rear-end gas supply pipeline, the high-pressure gas source is reduced to the required output pressure by the pressure reducing valve 9 and controlled for external output through the solenoid valve 11, and it can output gas sources with different air pressures. It should be noted that the pressure reducing valve 9 is an electric pressure regulating valve. In addition, the gas source in the rear-end gas supply pipeline can adjust the output flow by replacing the throttle plate. The external flowmeter in the gas circuit is used to calibrate the required flow value, and after calibration, it supplies gas to the rear end.

[0017] Embodiment 2: Different from Embodiment 1, the front-end gas supply pipeline is also connected to a high-pressure gas cylinder 6. The high-pressure gas cylinder 6 is located at the front of the needle valve 7 and the rear of the one-way valve 3. The inlet of the high-pressure gas cylinder 6 is connected to a gas cylinder valve 5. The front-end gas supply pipeline is provided with a pressure gauge 4, and the pressure gauge 4 is located at the rear of the one-way valve 3. The external high-pressure nitrogen (≤21 MPa) is filtered by the filter 1, passes through the three-way ball valve 2, and fills the high-pressure gas cylinder 6, or directly supplies gas to the rear-end gas supply pipeline. The high-pressure gas cylinder 6 can store the gas source and does not require an external gas source for emergencies. The high-pressure gas cylinder 6 is located at the front of the needle valve 7 and the rear of the one-way valve 3, that is, after the high-pressure gas cylinder 6 is opened, it cannot flow through the one-way valve 3 to the front-end gas supply pipeline, but can only flow through the needle valve 7 to the rear-end gas supply pipeline. Setting the pressure gauge 4 facilitates on-line pressure calibration.

[0018] Embodiment 3: Different from Embodiment 2, the rear-end gas supply pipeline is provided with a pressure sensor 8 and a pressure sensor 10. The pressure sensor 8 and the pressure sensor 10 are respectively located at the front and rear of the pressure reducing valve 9. The rear-end gas supply pipeline is also connected to a vent pipe. The vent pipe is located at the rear of the one-way valve 13, and an electromagnetic valve 12 is provided on the vent pipe. The gas supply system also includes a PLC controller. The PLC controller collects the pressure signals of the pressure sensor 8 and the pressure sensor 10, and real-time detects the gas source pressure at the inlet end and the outlet end of the pressure reducing valve 9. The pressure reducing valve 9 can set the required output pressure. The PLC controller also controls the on-off of the solenoid valve 11 and the solenoid valve 12, which is convenient for control operation. Using the PLC controller for control eliminates the trouble of frequent manual operation and improves work efficiency.

[0019] A gas simulation generating device includes a chassis and any of the above embodiments. Universal wheels with locking functions are provided at the four corners of the bottom of the chassis, which is convenient for indoor mobile use. It also includes a display screen, which is set on the upper panel of the chassis. The display screen is communicatively connected to the PLC controller of the gas supply system, and can display various data parameters and perform corresponding operations on the PLC controller, such as opening and closing the solenoid valve.

[0020] When the gas simulation generating device is implemented, the front-end gas supply pipeline can input high-pressure gas of 21 Mpa. On the one hand, an external gas source can be used to complete the simulation experiment of the gas generator. On the other hand, the external gas source can be used to inflate the internal high-pressure gas cylinder 6. According to the needs of the experiment, different output interfaces can be connected to obtain gases with different pressures, which can meet the gas supply requirements of various gas supply environments, serving multiple purposes with one machine and greatly saving costs.

[0021] The parts not detailed in the present utility model are prior arts. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, aiming to include all changes falling within the meaning and scope of the equivalent elements in the content of the present utility model.

Claims

1. A gas supply system, characterized in that: The invention comprises a front-end air supply pipeline and at least two rear-end air supply pipelines arranged in parallel, wherein the front-end air supply pipeline is connected to the rear-end air supply pipeline; the front-end air supply pipeline comprises a filter (1), a three-way ball valve (2) and a one-way valve (3) which are connected in sequence through the pipeline; the rear-end air supply pipeline comprises a needle valve (7), a pressure reducing valve (9), a solenoid valve (11) and a one-way valve (13) which are connected in sequence through the pipeline.

2. A gas supply system according to claim 1, characterized in that: The front-end gas supply pipeline is also connected to a high-pressure gas cylinder (6), which is located at the front end of the needle valve (7) and the rear end of the one-way valve (3), and the inlet of the high-pressure gas cylinder (6) is connected to the gas cylinder valve (5); the front-end gas supply pipeline is provided with a pressure gauge (4), which is located at the rear end of the one-way valve (3).

3. A gas supply system according to claim 1, characterized in that: The rear-end gas supply pipeline is provided with a pressure sensor 1 (8) and a pressure sensor 2 (10), and the pressure sensor 1 (8) and the pressure sensor 2 (10) are respectively located at the front end and the rear end of the pressure reducing valve (9); the rear-end gas supply pipeline is also connected with a vent pipe, and the vent pipe is located at the rear end of the check valve 2 (13), and the vent pipe is provided with a solenoid valve 2 (12).

4. A gas supply system according to claim 3, characterized in that: It also includes a PLC controller, which collects pressure signals from pressure sensor 1 (8) and pressure sensor 2 (10), and controls the on and off of solenoid valve 1 (11) and solenoid valve 2 (12).

5. A gas simulation generating device, characterized in that: The invention comprises a chassis and an air supply system as claimed in any one of claims 1 to 4, wherein universal wheels with a locking function are arranged at four corners of the bottom of the chassis.

6. A gas simulation generating device according to claim 5, characterized in that: It also includes a display screen, which is arranged on the upper panel of the chassis and is communicatively connected with a PLC controller of the air supply system.

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