A gas storage tank

Abstract

The utility model discloses a gas storage tank, including a gas storage tank, the gas inlet end of the gas storage tank is connected with the gas outlet end of a return pipe, two branches of the return pipe are respectively installed with a manual valve and a solenoid valve, a pressure sensor is arranged on the gas storage tank, the pressure sensor and the solenoid valve are both electrically connected with a PLC controller, and the gas inlet end of the return pipe is connected with the gas outlet end of the gas supply pipe. The device provides a dual gas supply channel to the gas storage tank through the return pipe, and the dual channels are respectively controlled by a manual valve and a solenoid valve to control the on-off and flow rate. When the gas is pumped up sharply, the dual-channel gas storage tank can be opened to quickly increase the pressure. When the gas pressure is too high or reaches a critical value, the manual valve is closed to maintain the passage of the solenoid valve to pump gas slowly and prevent the gas pressure from being too high.

Description

Technical Field

[0001] The utility model relates to the technical field of gas storage tanks, in particular to a gas storage tank. Background Art

[0002] Air is compressible. Air that has been compressed by an air compressor to reduce its volume and increase its pressure is called compressed air. Compressed air is an important source of power. A high-pressure air tank (hereinafter referred to as an air tank) is a device specifically used to store compressed air and also serves to stabilize the system pressure. When the air tank supplies air to multiple devices, the air compressor needs to continuously pump compressed air into the air tank. It is found that during use, the pressure of the air tank is easy to increase. When the machine is not used much, the excessive pressure of the tank will cause safety hazards, which is not conducive to production safety.

[0003] At present, general gas tanks are directly connected to compression pumps, and a solenoid valve for controlling the gas flow rate is installed on the pipeline between the two. When pumping gas, it is difficult for the solenoid valve to stably control the gas source due to the passage. For example, when the gas consumption of the machine increases or decreases suddenly, the air intake of the gas tank increases or decreases suddenly, and the solenoid valve's control over the flow rate is limited to a certain range, which is not suitable for surge pumping and slow flow pumping conditions. Utility Model Content

[0004] The utility model aims to provide a gas storage tank to solve the problem that the control of flow rate by a magnetic valve is limited to a certain range and is not suitable for the working conditions of rapid pumping gas and slow flow pumping gas.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A gas storage tank comprises a gas storage tank, wherein the gas inlet end of the gas storage tank is connected to the gas outlet end of a return pipe, two branches of the return pipe are respectively installed with a manual valve and a solenoid valve, a pressure sensor is arranged on the gas storage tank, the pressure sensor and the solenoid valve are both electrically connected to a PLC controller, and the gas inlet end of the return pipe is connected to the gas outlet end of an air supply pipe.

[0007] A further technical solution is: a one-way valve is arranged on the air supply pipe.

[0008] A further technical solution is: a U-shaped water pipe is arranged at the bottom of the gas storage tank.

[0009] A further technical solution is that the air inlet end of the return pipe is connected to the exhaust pipe.

[0010] A further technical solution is that the air outlet end of the exhaust pipe is connected to the top of the U-shaped water pipe.

[0011] A further technical solution is: a flow regulating valve is arranged on the exhaust pipe.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] The utility model provides an air storage tank, which provides a double air supply channel to the air storage tank through a return pipe. The double channels respectively use a manual valve and a solenoid valve to control the on-off and flow rate. When the air is pumped sharply, the double-channel air storage tank can be opened to quickly increase the pressure. When the air pressure is too high or reaches a critical value, the manual valve is closed to maintain the passage of the solenoid valve to slow down the pumping of air and prevent the air pressure from being too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a gas storage tank.

[0015] Figure numerals: 1. gas storage tank; 2. return pipe; 3. manual valve; 4. solenoid valve; 5. pressure sensor; 6. gas supply pipe; 7. one-way valve; 8. U-shaped water pipe; 9. exhaust pipe; 10. flow regulating valve. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Embodiment 1:

[0023] In this embodiment, Figure 1 As shown, an air storage tank includes an air storage tank 1, the air inlet end of the air storage tank 1 is connected to the air outlet end of a return pipe 2, two branches of the return pipe 2 are respectively installed with a manual valve 3 and a solenoid valve 4, a pressure sensor 5 is arranged on the air storage tank 1, the pressure sensor 5 and the solenoid valve 4 are both electrically connected to a PLC controller, and the air inlet end of the return pipe 2 is connected to the air outlet end of an air supply pipe 6.

[0024] When the machine uses a large amount of gas, the gas pressure in the gas tank 1 drops sharply, and gas needs to be pumped into the gas tank 1. At this time, the manual valve 3 and the solenoid valve 4 on the return pipe 2 are fully opened to form a dual-channel gas supply, and the external gas supply equipment (compression pump) quickly pumps gas into the gas tank 1 to increase the pressure. When the critical gas pressure is reached, the manual valve 3 is closed to maintain the passage of the solenoid valve, forming a single-channel gas supply to slowly pump gas and prevent the gas pressure from being too high.

[0025] Preferably, a one-way valve 7 is provided on the air supply pipe 6 .

[0026] The one-way valve 7 prevents the gas from flowing back.

[0027] Preferably, a U-shaped water pipe 8 is provided at the bottom of the gas storage tank 1 .

[0028] The U-shaped water pipe 8 can be used to discharge the water in the gas storage tank 1. The water in the U-shaped water pipe 8 can also play a water sealing effect, and it can be known whether the U-shaped water pipe 8 is leaking according to the water situation in the tank.

[0029] Preferably, the air inlet end of the return pipe 2 is connected to the exhaust pipe 9 .

[0030] The exhaust pipe 9 can be cleaned by means of compressed air.

[0031] Preferably, the air outlet end of the exhaust pipe 9 is connected to the top of the U-shaped water pipe 8 .

[0032] The exhaust pipe 9 can be cleaned more fully of water and dust in the exhaust pipe 9 by means of compressed air.

[0033] Preferably, a flow regulating valve 10 is provided on the exhaust pipe 9 .

[0034] The flow rate of compressed gas is controlled to remove water and dust in the exhaust pipe 9, or to temporarily exhaust gas and relieve pressure.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. 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 gas storage tank, comprising a gas storage tank (1), characterized in that: The air inlet end of the gas storage tank (1) is connected to the air outlet end of the return pipe (2); two branches of the return pipe (2) are respectively provided with a manual valve (3) and a solenoid valve (4); a pressure sensor (5) is provided on the gas storage tank (1); the pressure sensor (5) and the solenoid valve (4) are both electrically connected to a PLC controller; the air inlet end of the return pipe (2) is connected to the air outlet end of the air supply pipe (6).

2. The gas storage tank according to claim 1, characterized in that: The air supply pipe (6) is provided with a one-way valve (7).

3. The gas storage tank according to claim 1, characterized in that: A U-shaped water pipe (8) is provided at the bottom of the gas storage tank (1).

4. The gas storage tank according to claim 3, characterized in that: The air inlet end of the return pipe (2) is connected to the exhaust pipe (9).

5. The gas storage tank according to claim 4, characterized in that: The air outlet end of the exhaust pipe (9) is in communication with the top of the U-shaped water pipe (8).

6. The gas storage tank according to claim 5, characterized in that: The exhaust pipe (9) is provided with a flow regulating valve (10).

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