Quantitative hydrogen supply system

Abstract

The utility model discloses a hydrogen quantitative gas supply system which comprises a delivery pipe, a quantitative cylinder is arranged on the side face of the delivery pipe, the delivery pipe is communicated from the bottom of the quantitative cylinder to the inside of the quantitative cylinder, a sealing cover is arranged on the top of the quantitative cylinder and is in threaded connection with the quantitative cylinder, and a gas outlet cylinder is arranged at the bottom of the quantitative cylinder. When the hydrogen quantitative storage device is used, the piston is located at the bottom of the quantitative cylinder, the sealing ball blocks the gas outlet cylinder, hydrogen is guided into the quantitative cylinder through the conveying pipe, the gas is continuously input to drive the piston to move upwards, so that the hydrogen is quantitatively stored, after the requirement is met, the conveying pipe is closed, and the piston is driven to descend by pressing the driving rod through external power equipment; and meanwhile, the sealing ball gradually moves downwards to the bottom, so that the air outlet cylinder is opened, the hydrogen is exhausted, the hydrogen is reset through the reset spring after being emptied, the quantitative cylinder is sealed, and the device is simple in structure, convenient and fast to operate and capable of accurately and quantitatively conveying the hydrogen.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative gas supply, and more specifically to a hydrogen quantitative gas supply system. Background Art

[0002] Hydrogen is a colorless, odorless, highly flammable and poorly water-soluble gas at normal temperature and pressure. Its density is very small, only 0.089 g / L (under standard atmospheric pressure and 0 °C conditions), which is the smallest among all gases and only 1 / 14 of that of air. Therefore, hydrogen is known as "the lightest gas in the world".

[0003] In the prior art, the transmission of hydrogen is mostly controlled by a control valve. However, due to the fluidity of the gas, there are certain errors in its quantification. Therefore, a new technical solution is needed to solve this problem. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hydrogen quantitative gas supply system, which solves the problem that in the prior art, the transmission of hydrogen is mostly controlled by a control valve, but due to the fluidity of the gas, there are certain errors in its quantification.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A hydrogen quantitative gas supply system, comprising: a delivery pipe, a quantitative cylinder is arranged on the side of the delivery pipe and the delivery pipe is communicated to the inside from the bottom of the quantitative cylinder, a sealing cover is arranged on the top of the quantitative cylinder and is threadedly connected with the quantitative cylinder, an air outlet cylinder is arranged at the bottom of the quantitative cylinder and is communicated with the inside of the quantitative cylinder, a driving rod is arranged inside the quantitative cylinder and extends into the inside of the sealing cover and the air outlet cylinder, a piston is arranged on the surface of the driving rod and is fixedly connected with the driving rod, the piston is mutually fitted with the quantitative cylinder, a return spring is arranged at the inner bottom of the quantitative cylinder and is in contact with the piston, a sealing ball is arranged at the bottom of the driving rod and is mutually fitted with the air outlet cylinder.

[0006] As a preferred embodiment of the utility model, a control valve is arranged on the surface of the delivery pipe.

[0007] As a preferred embodiment of the utility model, a pressure gauge is arranged on the upper part of the sealing cover and the pressure gauge is communicated with the inside of the quantitative cylinder.

[0008] As a preferred embodiment of the utility model, a trigger is arranged on the upper part of the piston and a receiver is arranged on the surface of the sealing cover, and the receiver and the trigger are mutually matched.

[0009] As a preferred embodiment of the utility model, a pressing plate is arranged at the top of the driving rod and is fixedly connected with the driving rod.

[0010] As a preferred embodiment of the present utility model, a sealing ring is provided on the surface of the sealing ball and is fixedly connected to the sealing ball.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, a metering cylinder is provided on the side of the conveying pipe, and the conveying pipe communicates with the inside from the bottom of the metering cylinder. A sealing cover is provided on the top of the metering cylinder and is threadedly connected to the metering cylinder. An air outlet cylinder is provided at the bottom of the metering cylinder and is connected to the inside of the metering cylinder. A driving rod is provided inside the metering cylinder and extends into the inside of the sealing cover and the air outlet cylinder. A piston is provided on the surface of the driving rod and is fixedly connected to the driving rod. The piston is fitted with the metering cylinder. A return spring is provided at the inner bottom of the metering cylinder and is in contact with the piston. A sealing ball is provided at the bottom of the driving rod and is fitted with the air outlet cylinder. When in use, the piston is located at the bottom of the metering cylinder, and at the same time the sealing ball blocks the air outlet cylinder. Hydrogen is introduced into the metering cylinder through the conveying pipe. The continuous input of the gas drives the piston to move upward, so as to store hydrogen quantitatively. After reaching the requirement, the conveying pipe is closed, and the driving rod is pressed by an external power device to drive the piston to descend. At the same time, the sealing ball also gradually moves downward to the bottom, thereby opening the air outlet cylinder and discharging hydrogen. After emptying, it is reset by the return spring to seal the metering cylinder. The device has a simple structure and convenient operation, and can accurately convey hydrogen quantitatively. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a front view structure schematic diagram of the present utility model;

[0015] Figure 3 is a schematic diagram of the cross-sectional structure of the mounting seat of the present utility model viewed from above;

[0016] Figure 4 is a schematic diagram of the cross-sectional structure of the mounting seat of the present utility model viewed from the side.

[0017] In the figure: 1, metering cylinder; 2, sealing cover; 3, pressure gauge; 4, pressing plate; 5, receiver; 6, conveying pipe; 7, control valve; 8, air outlet cylinder; 9, sealing ball; 10, driving rod; 11, piston; 12, trigger; 13, sealing ring; 14, return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution: a hydrogen quantitative gas supply system, including: a delivery pipe 6, a metering cylinder 1 is arranged on the side of the delivery pipe 6 and the delivery pipe 6 is communicated to the inside from the bottom of the metering cylinder 1, a sealing cover 2 is arranged on the top of the metering cylinder 1 and the sealing cover 2 is threadedly connected to the metering cylinder 1, an air outlet cylinder 8 is arranged at the bottom of the metering cylinder 1 and the air outlet cylinder 8 is communicated with the inside of the metering cylinder 1, a driving rod 10 is arranged inside the metering cylinder 1 and the driving rod 10 extends into the inside of the sealing cover 2 and the air outlet cylinder 8, a piston 11 is arranged on the surface of the driving rod 10 and the piston 11 is fixedly connected to the driving rod 10, the piston 11 is mutually fitted with the metering cylinder 1, a return spring 14 is arranged at the inner bottom of the metering cylinder 1 and the return spring 14 is in contact with the piston 11, a sealing ball 9 is arranged at the bottom of the driving rod 10 and the sealing ball 9 is mutually fitted with the air outlet cylinder 8. A metering cylinder 1 is arranged on the side of the delivery pipe 6 and the delivery pipe 6 is communicated to the inside from the bottom of the metering cylinder 1, a sealing cover 2 is arranged on the top of the metering cylinder 1 and the sealing cover 2 is threadedly connected to the metering cylinder 1, an air outlet cylinder 8 is arranged at the bottom of the metering cylinder 1 and the air outlet cylinder 8 is communicated with the inside of the metering cylinder 1, a driving rod 10 is arranged inside the metering cylinder 1 and the driving rod 10 extends into the inside of the sealing cover 2 and the air outlet cylinder 8, a piston 11 is arranged on the surface of the driving rod 10 and the piston 11 is fixedly connected to the driving rod 10, the piston 11 is mutually fitted with the metering cylinder 1, a return spring 14 is arranged at the inner bottom of the metering cylinder 1 and the return spring 14 is in contact with the piston 11, a sealing ball 9 is arranged at the bottom of the driving rod 10 and the sealing ball 9 is mutually fitted with the air outlet cylinder 8. When in use, the piston 11 is located at the bottom of the metering cylinder 1, and at the same time the sealing ball 9 blocks the air outlet cylinder 8. Hydrogen is introduced into the metering cylinder 1 through the delivery pipe 6. The continuous input of gas drives the piston 11 to move upward, so as to quantitatively store hydrogen. After reaching the requirement, the delivery pipe 6 is closed. By pressing the driving rod 10 with an external power device, the piston 11 is driven to descend, and at the same time the sealing ball 9 also gradually moves downward to the bottom, thereby opening the air outlet cylinder 8 to discharge hydrogen. After emptying, it is reset by the return spring 14 to seal the metering cylinder 1. The device has a simple structure and convenient operation, and can accurately conduct quantitative delivery of hydrogen.

[0020] Further improved, as Figure 1As shown: A control valve 7 is provided on the surface of the delivery pipe 6, and the setting of the delivery pipe 6 facilitates the control of the switch.

[0021] Further improved, as Figure 1 As shown: A pressure gauge 3 is provided on the upper part of the sealing cover 2 and the pressure gauge 3 communicates with the inside of the measuring cylinder 1. The setting of the pressure gauge 3 facilitates observing the internal pressure.

[0022] Further improved, as Figure 3 As shown: A trigger 12 is provided on the upper part of the piston 11 and a receiver 5 is provided on the surface of the sealing cover 2. The receiver 5 and the trigger 12 match each other. When the inside of the measuring cylinder 1 is filled with hydrogen, the trigger 12 at the top of the piston 11 contacts the receiver 5, thereby transmitting the full signal to the control valve 7, and then closing the delivery pipe 6.

[0023] Further improved, as Figure 1 As shown: A pressing plate 4 is provided at the top of the driving rod 10 and the pressing plate 4 is fixedly connected to the driving rod 10. The setting of the pressing plate 4 facilitates the pressing of the driving rod 10.

[0024] Further improved, as Figure 4 As shown: A sealing ring 13 is provided on the surface of the sealing ball 9 and the sealing ring 13 is fixedly connected to the sealing ball 9. This setting increases the sealing performance of the sealing ball 9.

[0025] In the utility model, a measuring cylinder 1 is provided on the side of the delivery pipe 6 and the delivery pipe 6 communicates with the inside from the bottom of the measuring cylinder 1. A sealing cover 2 is provided on the top of the measuring cylinder 1 and the sealing cover 2 is threadedly connected to the measuring cylinder 1. An air outlet cylinder 8 is provided at the bottom of the measuring cylinder 1 and the air outlet cylinder 8 communicates with the inside of the measuring cylinder 1. A driving rod 10 is provided inside the measuring cylinder 1 and the driving rod 10 extends into the inside of the sealing cover 2 and the air outlet cylinder 8. A piston 11 is provided on the surface of the driving rod 10 and the piston 11 is fixedly connected to the driving rod 10. The piston 11 is fitted with the measuring cylinder 1. A return spring 14 is provided at the inner bottom of the measuring cylinder 1 and the return spring 14 contacts the piston 11. A sealing ball 9 is provided at the bottom of the driving rod 10 and the sealing ball 9 is fitted with the air outlet cylinder 8. When in use, the piston 11 is located at the bottom of the measuring cylinder 1, and at the same time the sealing ball 9 blocks the air outlet cylinder 8. Hydrogen is introduced into the measuring cylinder 1 through the delivery pipe 6. With the continuous input of the gas, the piston 11 is driven to move upward, thereby storing hydrogen quantitatively. After reaching the requirement, the delivery pipe 6 is closed. By pressing the driving rod 10 with an external power device, the piston 11 is driven to descend, and at the same time the sealing ball 9 also gradually moves downward to the bottom, thereby opening the air outlet cylinder 8 and discharging hydrogen. After emptying, it is reset by the return spring 14 to seal the measuring cylinder 1. The device has a simple structure, convenient operation, and can accurately conduct quantitative delivery of hydrogen.

[0026] The basic principles, main features and advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

[0027] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change.

[0028] Finally, it should be noted that the above-mentioned are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydrogen quantitative gas supply system, characterized in that: Comprising: A delivery pipe (6), a metering cylinder (1) is arranged on the side of the delivery pipe (6), and the delivery pipe (6) communicates with the inside from the bottom of the metering cylinder (1). A sealing cover (2) is arranged on the top of the metering cylinder (1), and the sealing cover (2) is threadedly connected with the metering cylinder (1). An air outlet cylinder (8) is arranged at the bottom of the metering cylinder (1), and the air outlet cylinder (8) communicates with the inside of the metering cylinder (1). A driving rod (10) is arranged inside the metering cylinder (1), and the driving rod (10) extends into the inside of the sealing cover (2) and the air outlet cylinder (8). A piston (11) is arranged on the surface of the driving rod (10), and the piston (11) is fixedly connected with the driving rod (10). The piston (11) is mutually fitted with the metering cylinder (1). A return spring (14) is arranged at the inner bottom of the metering cylinder (1), and the return spring (14) is in contact with the piston (11). A sealing ball (9) is arranged at the bottom of the driving rod (10), and the sealing ball (9) is mutually fitted with the air outlet cylinder (8).

2. The hydrogen gas quantitative supply system according to claim 1, characterized in that: A control valve (7) is arranged on the surface of the delivery pipe (6).

3. The hydrogen quantitative gas supply system according to claim 1, characterized in that: A pressure gauge (3) is arranged on the upper part of the sealing cover (2), and the pressure gauge (3) communicates with the inside of the metering cylinder (1).

4. A hydrogen quantitative gas supply system according to claim 1, characterized in that: A trigger (12) is arranged on the upper part of the piston (11), and a receiver (5) is arranged on the surface of the sealing cover (2). The receiver (5) and the trigger (12) are mutually matched.

5. The hydrogen gas metering and supply system according to claim 1, wherein: A pressing plate (4) is arranged on the top of the driving rod (10), and the pressing plate (4) is fixedly connected with the driving rod (10).

6. The hydrogen quantitative gas supply system according to claim 1, wherein: A sealing ring (13) is arranged on the surface of the sealing ball (9), and the sealing ring (13) is fixedly connected with the sealing ball (9).

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