Pressure vessel with overpressure protection function

Abstract

The utility model discloses a pressure vessel with an overpressure protection function, which comprises a vessel main body, an inlet pipe is arranged at the top of the vessel main body, an electric switch valve is arranged on the inlet pipe, a protection frame is fixedly connected to the top of the vessel main body, a piston cavity is arranged in the protection frame, and a piston is arranged in the piston cavity. The bottom of the inner wall of the piston cavity is provided with a communicating opening communicating with the container body, a piston block is slidably connected into the piston cavity in an embedded mode, a pressing spring is connected between the top in the piston cavity and the top of the piston block, the top in the piston cavity is fixedly connected with a contact switch, and a contact head is arranged at the top of the piston block. A pressure relief opening communicated with the piston cavity is formed in the protection frame. According to the utility model, the whole structure can achieve a stable protection effect when gas is added to the pressure container, the effects of automatically closing gas inlet and pressure relief when the gas pressure is too high are achieved, and the use safety of the pressure container is greatly enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessels, in particular to a pressure vessel with overpressure protection. Background Art

[0002] Pressure vessels refer to sealed equipment that bears a certain pressure and is used to contain gas or liquid. Pressure vessels are widely used in many fields such as industry, civil and military, as well as petrochemical industry. In particular, in the field of petrochemical industry, the use of pressure vessels is very common. Pressure vessels are required to complete the process of reaction, heat transfer, mass transfer, separation, storage and transportation.

[0003] However, some traditional pressure vessels lack active protection structures. When injecting gas during use, the pressure vessel needs to be manually observed by the pressure gauge to observe the gas injection situation. When the gas is injected to the corresponding pressure, the gas pipeline is closed. This working method is time-consuming and labor-intensive. Once a mistake is made, other excessive situations are likely to occur. Due to the lack of an overpressure protection structure, the container will be damaged to a certain extent. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a pressure vessel with overpressure protection.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pressure vessel with overpressure protection, comprising a container body, an inlet pipe is provided at the top of the container body, an electric switch valve is provided on the inlet pipe, the top of the container body is fixedly connected to a protection frame, a piston cavity is provided in the protection frame, a connecting port connected to the container body is provided at the bottom of the inner wall of the piston cavity, and a piston block is nested and slidably connected in the piston cavity, a compression spring is connected between the top of the piston cavity and the top of the piston block, a contact switch is fixedly connected to the inner top of the piston cavity, a contact head is provided on the top of the piston block, a pressure relief port connected to the piston cavity is provided on the protection frame, and a pressure relief tank connected to the pressure relief port is provided on the outside of the protection frame, the top of the container body is fixedly connected to a fixing box, and a controller is provided in the fixing box.

[0006] As a further description of the above technical solution:

[0007] A pressure gauge is provided on the top of the container body.

[0008] As a further description of the above technical solution:

[0009] The pressure relief tank is communicated with the pressure relief port on the protection frame via a pipe joint.

[0010] As a further description of the above technical solution:

[0011] A battery is arranged in the fixing box, and the electric switch valve, the contact switch, the controller and the battery are all electrically connected.

[0012] As a further description of the above technical solution:

[0013] The model of the controller is STM32, and the electric switching valve, the contact switch and the controller are all electrically connected.

[0014] As a further description of the above technical solution:

[0015] One side of the outer surface of the fixing box is rotatably connected with a sealing door through a hinge.

[0016] The utility model has the following beneficial effects:

[0017] When the ignition coil is turned on, the piston is pushed back to the upper position, and the expanded gas is released from the pressure relief valve into the pressure relief valve, thereby ensuring the balance of pressure in the pressure relief valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a pressure vessel with overpressure protection proposed by the utility model;

[0019] Figure 2 This is a front view of a pressure vessel with overpressure protection proposed by the utility model;

[0020] Figure 3 This is a front view of the protective frame structure position of a pressure vessel with overpressure protection proposed by the utility model.

[0021] Legend:

[0022] 1. Container body; 2. Inlet pipe; 3. Electric switch valve; 4. Pressure gauge; 5. Protective frame; 6. Piston cavity; 7. Piston block; 8. Pressure spring; 9. Contact switch; 10. Contact head; 11. Communication port; 12. Pressure relief port; 13. Pressure relief tank; 14. Pipe joint; 15. Fixing box; 16. Battery; 17. Controller. DETAILED DESCRIPTION

[0023] The following will be combined with the 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 embodiments described 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 without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Reference Figure 1-3, the utility model provides an embodiment: a pressure vessel with overpressure protection, including a container body 1, an inlet pipe 2 is provided on the top of the container body 1, an electric switch valve 3 is provided on the inlet pipe 2, the inlet pipe 2 is the injection position of the container body 1, the electric switch valve 3 can control the opening and closing of the passage of the inlet pipe 2, the top of the container body 1 is fixedly connected to a protective frame 5, a piston chamber 6 is provided in the protective frame 5, a communication port 11 communicating with the container body 1 is provided at the bottom of the inner wall of the piston chamber 6, and a piston block 7 is nested and slidably connected in the piston chamber 6, a compression spring 8 is connected between the top of the piston chamber 6 and the top of the piston block 7, a contact switch 9 is fixedly connected to the inner top of the piston chamber 6, and a contact head 10 is provided on the top of the piston block 7. When the air pressure in the container body 1 rises, the gas expands through the communication port 1 1 enters the piston chamber 6 and pushes the piston block 7 to move upward. The piston block 7 moves upward to compress the compression spring 8. At the same time, the piston block 7 drives the contact head 10 to move upward and squeeze onto the contact switch 9. In this way, with the whole structure, the electric switch valve 3 can be conveniently closed to stop the air intake work of the container body 1, and avoid the situation where the pressure in the container body 1 is too high. A pressure relief port 12 connected to the piston chamber 6 is provided on the protective frame 5, and a pressure relief tank 13 connected to the pressure relief port 12 is provided on the outside of the protective frame 5. When the pressure in the container body 1 increases too fast, the gas expansion pushes the piston block 7 to move up to a position above the pressure relief port 12, so that the gas is released from the pressure relief port 12 into the pressure relief tank 13, which can release the overload pressure. A fixing box 15 is fixedly connected to the top of the container body 1, and a controller 17 is provided in the fixing box 15.

[0026] A pressure gauge 4 is provided on the top of the container body 1 . The pressure gauge 4 can be used to observe the pressure situation in the container body 1 .

[0027] The pressure relief tank 13 is connected to the pressure relief port 12 on the protection frame 5 via a pipe joint 14 . The provision of the pipe joint 14 enables the pressure relief tank 13 to be stably docked with the protection frame 5 .

[0028] A battery 16 is provided in the fixing box 15, and the electric switch valve 3, the contact switch 9, the controller 17 and the battery 16 are all electrically connected. The setting of the battery 16 can supply power to the electrical structure, so that the entire structure can be stably operated.

[0029] The model of the controller 17 is STM32. The electric switch valve 3, the contact switch 9 and the controller 17 are all electrically connected. The setting of the controller 17 can achieve stable control of the entire structure.

[0030] One side of the outer surface of the fixed box 15 is connected to a sealing door by a hinge. The setting of the sealing door can not only provide a shielding and protective effect for the fixed box 15, but also can be opened conveniently.

[0031] Working principle: When using a pressure vessel with overpressure protection, gas can be added to the container body 1 through the inlet pipe 2. When the air pressure in the container body 1 rises, the gas expands and enters the piston chamber 6 through the connecting port 11, and pushes the piston block 7 upward. The upward movement of the piston block 7 compresses the compression spring 8. At the same time, the piston block 7 drives the contact head 10 to move upward and squeeze it onto the contact switch 9. The contact switch 9 cooperates with the controller 17 to close the electric switch valve 3, which can close the air intake of the container body 1. When the air pressure in the container body 1 increases too quickly, the piston block 7 is pushed to move above the pressure relief port 12, and the expanded gas is released from the pressure relief port 12 to the pressure relief tank 13. After the pressure is released, the compression spring 8 is no longer under pressure, and the piston block 7 is pushed to reset, which can close the pressure relief port 12 and ensure the air pressure balance in the container body 1. The structure can provide a stable overpressure protection effect for the air filling work in the container body 1.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pressure vessel with overpressure protection, comprising a vessel body (1), characterized in that: The top of the container body (1) is provided with an inlet pipe (2), and the inlet pipe (2) is provided with an electric switch valve (3). The top of the container body (1) is fixedly connected to a protection frame (5), and a piston cavity (6) is provided in the protection frame (5). The bottom of the inner wall of the piston cavity (6) is provided with a communication port (11) that is connected to the container body (1), and a piston block (7) is nested and slidably connected in the piston cavity (6). There is a gap between the top of the piston cavity (6) and the top of the piston block (7). A compression spring (8) is connected, a contact switch (9) is fixedly connected to the inner top of the piston chamber (6), a contact head (10) is provided on the top of the piston block (7), a pressure relief port (12) communicating with the piston chamber (6) is provided on the protection frame (5), and a pressure relief tank (13) communicating with the pressure relief port (12) is provided on the outer side of the protection frame (5), a fixed box (15) is fixedly connected to the top of the container body (1), and a controller (17) is provided in the fixed box (15).

2. A pressure vessel with overpressure protection according to claim 1, characterized in that: A pressure gauge (4) is provided on the top of the container body (1).

3. The pressure vessel with overpressure protection according to claim 1, characterized in that: The pressure relief tank (13) is connected to the pressure relief port (12) on the protection frame (5) via a pipe joint (14).

4. The pressure vessel with overpressure protection according to claim 1, characterized in that: A battery (16) is provided in the fixing box (15), and the electric switch valve (3), the contact switch (9), the controller (17) and the battery (16) are all electrically connected.

5. The pressure vessel with overpressure protection according to claim 1, characterized in that: The model of the controller (17) is STM32, and the electric switch valve (3), the contact switch (9) and the controller (17) are all electrically connected.

6. The pressure vessel with overpressure protection according to claim 1, characterized in that: One side of the outer surface of the fixed box (15) is rotatably connected to a sealing door via a hinge.

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