A high pressure fluid release system

Abstract

The present invention discloses a high-pressure fluid discharge system, including a discharge pipe, one end of which is connected to a fluid filling pipe, the other end of which is provided with a discharge port, a pneumatic discharge valve provided on the discharge pipe, a control port of the pneumatic discharge valve connected to a compressed air source through an air pipe, and a filter pressure regulating valve, an air buffer pipe and a one-way throttle valve provided on the air pipe in sequence along the flow direction of the compressed air. The beneficial effects of the present invention are: the controllability of the hydrogen pressure relief speed is improved, the noise pollution to the surrounding environment can be reduced, the pressure of the compressed air is stabilized, and the operation is convenient and safe.

Description

Technical Field

[0001] The present invention relates to the technical field of discharge systems, and in particular to a high-pressure fluid discharge system. Background Art

[0002] Hydrogen energy is regarded as the clean energy with the greatest development potential, so many countries and regions in the world have carried out extensive research on hydrogen energy. Hydrogen fuel cell technology has always been considered the ultimate solution to solve the future energy crisis of mankind by using hydrogen energy. As the infrastructure for providing hydrogen for hydrogen fuel cell vehicles, hydrogen refueling equipment plays an important role in the promotion and popularization of hydrogen energy.

[0003] At present, only one ordinary valve is provided on the discharge pipe for depressurizing (i.e., releasing) the hydrogen filling. The ordinary valve has only two states: fully open and fully closed. The flow of the discharge circuit cannot be controlled, so that the high-pressure fluid is released at a faster speed, generating huge noise and causing great noise pollution to the environment.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the above technical problems in the related art, the present invention proposes a high-pressure fluid release system, which can control the hydrogen pressure release speed, reduce noise pollution, and stabilize the pressure of compressed air.

[0006] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows:

[0007] A high-pressure fluid discharge system comprises a discharge pipe, one end of which is connected to a fluid filling pipe, the other end of which is provided with a discharge port, a pneumatic discharge valve is provided on the discharge pipe, a control port of the pneumatic discharge valve is connected to a compressed air source through an air pipe, and a filter pressure regulating valve, an air buffer pipe and a one-way throttle valve are sequentially provided on the air pipe along the flow direction of the compressed air.

[0008] Furthermore, the fluid passing through the fluid filling pipe is hydrogen.

[0009] Furthermore, the air buffer tube includes a tube body, the left end of the tube body is provided with an air inlet, the right end of the tube body is blocked, and the upper part of the tube body is provided with a plurality of air outlets.

[0010] Furthermore, a drain outlet is provided at the lower portion of the tube body.

[0011] Furthermore, the model of the filter voltage regulator is MX2-1 / 2-FR1004.

[0012] Furthermore, the model of the one-way throttle valve is ASL6-01B.

[0013] The beneficial effects of the present invention are as follows: the controllability of the hydrogen pressure relief speed is improved, the noise pollution to the surrounding environment can be reduced, the pressure of the compressed air is stabilized, and the operation is convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 is a schematic diagram of a high-pressure fluid release system according to an embodiment of the present invention;

[0016] Figure 2 is a cross-sectional view of an air buffer tube according to an embodiment of the present invention.

[0017] In the figure:

[0018] 1. Fluid filling pipe; 2. Discharge pipe; 3. Pneumatic discharge valve; 4. Filter pressure regulating valve; 5. Air buffer pipe; 6. One-way throttle valve; 7. Air inlet; 8. Air outlet; 9. Drain outlet; 10. Pipe body. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0020] like Figure 1-2 As shown, a high-pressure fluid discharge system according to an embodiment of the present invention includes a discharge pipe 2, one end of the discharge pipe 2 is connected to the fluid filling pipe 1, the other end of the discharge pipe 2 is provided with a discharge port, and a pneumatic discharge valve 3 is provided on the discharge pipe 2. The control port of the pneumatic discharge valve 3 is connected to a compressed air source through an air pipe, and a filter pressure regulating valve 4, an air buffer pipe 5 and a one-way throttle valve 6 are sequentially provided on the air pipe along the flow direction of the compressed air.

[0021] In a specific embodiment of the present invention, the fluid passing through the fluid filling pipe 1 is hydrogen.

[0022] In a specific embodiment of the present invention, the air buffer tube 5 includes a tube body 10 , the left end of the tube body 10 is provided with an air inlet 7 , the right end of the tube body 10 is blocked, and the upper part of the tube body 10 is provided with a plurality of air outlets 8 .

[0023] In a specific embodiment of the present invention, a drain port 9 is provided at the lower portion of the tube body 10 .

[0024] In a specific embodiment of the present invention, the model of the filter voltage regulator 4 is MX2-1 / 2-FR1004.

[0025] In a specific embodiment of the present invention, the model of the one-way throttle valve 6 is ASL6-01B.

[0026] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0027] The high-pressure fluid discharge system described in the present invention includes a discharge pipe 2, a pneumatic discharge valve 3, a filter pressure regulating valve 4, an air buffer tube 5, and a one-way throttle valve 6. The model of the filter pressure regulating valve 4 is MX2-1 / 2-FR1004, and the parameters are 0.5~10bar, G1 / 2", self-exhaust, semi-automatic drainage, 5μm, and a pressure gauge. The model of the one-way throttle valve 6 is ASL6-01B, and the parameters are 0-114psi, 6mmOD, PT1 / 8, plastic, and manual adjustment. The model of the pneumatic discharge valve 3 is AOV5-20NVS9MF-NC-SUH660, and the parameters are 20kpsi, 9 / 16"MP, 6.53mm, SUH660, NC, 5", H2. After the high-pressure fluid discharge system is installed, a pressure test must be performed to prevent leakage of the joints and valves.

[0028] The high-pressure fluid discharge system of the present invention is applied to the field of high-pressure fluid. Compared with ordinary valves that have only two states, open and closed, the flow rate and pressure of compressed air can be controlled by adding a one-way throttle valve 6, so that the discharge speed of the system can be controlled, and noise pollution caused by excessive discharge speed can be avoided. In addition, the system uses an air buffer tube 5 to maintain a stable pressure of compressed air to prevent fluctuations.

[0029] The filter pressure regulating valve 4 provides clean compressed air to the air pipe. When the pressure of the compressed air fluctuates, it can automatically adjust to ensure a stable pressure output and stable pressure.

[0030] The air buffer tube 5 is used to reduce the unevenness of the flow and pressure in the air pipe, avoid fluctuations in the flow and pressure, and meet the needs of the process flow. The air inlet 7 of the air buffer tube 5 is used for air intake, the air outlet 8 is used for air outlet, and the drain port 9 is used for drainage. A valve is provided at the drain port 9. The valve is opened when drainage is required and closed at other times.

[0031] One-way throttle valve 6 is a valve for controlling fluid flow by changing throttle cross section or throttle length. Throttle valve and one-way valve can be combined into one-way throttle valve in parallel, which is a simple flow control valve.

[0032] The pneumatic relief valve 3 uses compressed air as power to trigger the opening and closing of the valve.

[0033] The compressed air source is a device that generates compressed air, such as an air compression pump.

[0034] One end of the fluid filling pipe 1 is connected to the hydrogen filling equipment, and the other end is provided with a filling port and connected to the hydrogen fuel cell. High-pressure hydrogen is introduced into the fluid filling pipe 1 for hydrogen filling.

[0035] During specific use, compressed air passes through the filter pressure regulating valve 4 and then enters through the air inlet 7 and is stored in the air buffer tube 5. When the fluid filling pipe 1 needs to release pressure, the one-way throttle valve 6 is adjusted to allow compressed air with a certain pressure and flow in the air buffer tube 5 to flow out through the air outlet 8 and be injected into the pneumatic relief valve 3, thereby controlling the opening degree of the pneumatic relief valve 3 and further achieving the limitation of the discharge flow.

[0036] In summary, with the aid of the above technical solution of the present invention, the controllability of the hydrogen pressure relief speed is improved, the noise pollution to the surrounding environment can be reduced, the pressure of the compressed air is stabilized, and the operation is convenient and safe.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure fluid discharge system, comprising a discharge pipe (2), one end of the discharge pipe (2) being connected to a fluid filling pipe (1), and the other end of the discharge pipe (2) being provided with a discharge port, characterized in that: The discharge pipe (2) is provided with a pneumatic discharge valve (3), a control port of the pneumatic discharge valve (3) is connected to a compressed air source via an air pipe, and a filter pressure regulating valve (4), an air buffer pipe (5) and a one-way throttle valve (6) are sequentially provided on the air pipe along the flow direction of the compressed air; The air buffer tube (5) comprises a tube body (10), the left end of the tube body (10) is provided with an air inlet (7), the right end of the tube body (10) is blocked, and the upper part of the tube body (10) is provided with a plurality of air outlets (8); A drainage port (9) is provided at the lower portion of the tube body (10); After passing through the filter pressure regulating valve (4), the compressed air enters through the air inlet (7) and is stored in the air buffer tube (5). When the fluid filling tube (1) needs to release pressure, the one-way throttle valve (6) is adjusted so that the compressed air with a certain pressure and flow in the air buffer tube (5) flows out through the air outlet (8) and is injected into the pneumatic relief valve (3).

2. The high pressure fluid release system according to claim 1, characterized in that: The fluid passing through the fluid filling pipe (1) is hydrogen.

3. The high pressure fluid release system according to claim 1, characterized in that: The model of the filter pressure regulating valve (4) is MX2-1 / 2-FR1004.

4. The high pressure fluid release system according to claim 1, characterized in that: The model of the one-way throttle valve (6) is ASL6-01B.

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