Pneumatic valve plate enabling device

Abstract

The utility model provides a pneumatic valve plate enabling device which comprises an air supply tank, an air cylinder is arranged below the air supply tank, a gate valve is arranged at the end of the air cylinder, an air supply electromagnetic valve is arranged above the air cylinder, and an exhaust electromagnetic valve is arranged on the side face of the air supply electromagnetic valve. An air supply pipe is arranged at one end of the air supply electromagnetic valve and communicated with the air supply tank, an air inlet pipe is arranged at the other end, connected with the air supply pipe, of the air supply electromagnetic valve, and a control air pipe communicated with the air cylinder is arranged at the end of the air inlet pipe. An exhaust port is formed in one end of the exhaust electromagnetic valve, and an exhaust pipe is arranged at the end, away from the exhaust port, of the exhaust electromagnetic valve and communicates with the control air pipe. By means of the exhaust electromagnetic valve arranged on the side face of the air supply electromagnetic valve, under the condition that the air cylinder is not operated, air supplied into the air cylinder can be cut off, meanwhile, redundant pressure in the air cylinder is released, the air cylinder is made to be at zero pressure, the service life of the air cylinder can be prolonged, and misoperation of the air cylinder or process faults such as material blocking and material channeling caused by misoperation of the air cylinder are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic valve plates, in particular to a pneumatic valve plate enabling device. Background Art

[0002] Pneumatic gate valve is a commonly used control valve. It drives the gate to move through the pneumatic actuator to realize the opening, closing and regulating functions of the fluid medium in the pipeline. It is widely used in pipeline systems in petrochemical, electric power, metallurgy, papermaking, pharmaceutical and other industries to realize the control and regulation of the fluid medium.

[0003] The current pneumatic gate valve controls the air source from the head or tail of the cylinder through the solenoid valve, thereby realizing the control of the cylinder stroke or switch;

[0004] However, the following problems were found in the actual use of the pneumatic gate valve:

[0005] 1: The cylinder of the existing pneumatic gate valve is always under pressure, which has a great impact on the service life of the cylinder.

[0006] 2: Since the cylinder of the pneumatic gate valve is always supplied with air, it is easy to cause misoperation or power failure. After power is restored, the original state of the cylinder may change, resulting in process failures such as blockage and material leakage.

[0007] In summary, there is a need for a pneumatic gate valve that is easy to use for a long time. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model provides a pneumatic valve plate enabling device, which solves the problems mentioned in the background technology.

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] The pneumatic valve plate enabling device comprises an air supply tank, a cylinder is arranged below the air supply tank, a plug valve is arranged at the end of the cylinder, an air supply solenoid valve is arranged above the cylinder, and an exhaust solenoid valve is arranged on the side of the air supply solenoid valve;

[0011] One end of the air supply solenoid valve is provided with an air supply pipe, which is connected to the air supply tank; the other end of the air supply solenoid valve connected to the air supply pipe is provided with an air intake pipe, and the end of the air intake pipe is provided with a control air pipe connected to the cylinder;

[0012] An exhaust port is arranged at one end of the exhaust solenoid valve, and an exhaust pipe is arranged at one end of the exhaust solenoid valve away from the exhaust port, and the exhaust pipe is communicated with the control air pipe.

[0013] Furthermore, the exhaust solenoid valve and the exhaust pipe are both arranged corresponding to the cylinder.

[0014] Furthermore, the exhaust pipe, the air intake pipe and the control air pipe are interconnected.

[0015] Furthermore, a control box is provided at one end of the cylinder, and a controller for controlling the exhaust solenoid valve and the air supply solenoid valve is provided on the top surface of the exhaust solenoid valve and the air supply solenoid valve.

[0016] Furthermore, the air supply solenoid valve and the exhaust solenoid valve have two states: control and protection:

[0017] In the control state: the exhaust solenoid valve is closed, the air supply solenoid valve is opened, and the air supply pipe is connected to the control air pipe;

[0018] In the protection state: the exhaust solenoid valve is open, the air supply solenoid valve is closed, and the exhaust pipe is connected to the exhaust port.

[0019] The utility model provides a pneumatic valve plate enabling device. Compared with the prior art, it has the following beneficial effects:

[0020] The exhaust solenoid valve arranged on the side of the air supply solenoid valve can cut off the air supply to the cylinder when the cylinder is not operated. At the same time, the excess pressure in the cylinder can be released to make the cylinder at zero pressure, thereby increasing the service life of the cylinder and reducing process failures such as blockage and material leakage caused by misoperation of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The structure diagram of the pneumatic valve plate enabling device of the utility model is shown;

[0023] Figure 2 The structure diagram of the utility model is shown;

[0024] Figure 3 The structure diagram of the utility model is shown;

[0025] Figure 4 The structure diagram of the utility model is shown;

[0026] As shown in the figure: 1. Air supply tank; 11. Air supply pipe; 2. Air supply solenoid valve; 21. Air intake pipe; 3. Control air pipe; 4. Exhaust solenoid valve; 41. Exhaust pipe; 42. Exhaust port; 5. Control box; 51. Controller; 6. Cylinder; 7. Gate valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0028] In order to solve the technical problems in the background technology, the following pneumatic valve plate enabling device is provided:

[0029] Combination Figure 1-Figure 4 As shown, the pneumatic valve plate enabling device provided by the utility model comprises an air supply tank 1, a cylinder 6 is provided below the air supply tank 1, a plug valve 7 is provided at the end of the cylinder 6, an air supply solenoid valve 2 is provided above the cylinder 6, and an exhaust solenoid valve 4 is provided on the side of the air supply solenoid valve 2; by means of the arranged air supply solenoid valve 2, it is convenient to isolate the air when the cylinder 6 is not in operation, so as to reduce the failure rate of the cylinder 6 when it is not in operation; an air supply pipe 11 is provided at one end of the air supply solenoid valve 2, the air supply pipe 11 is communicated with the air supply tank 1, an air intake pipe 21 is provided at the other end of the air supply solenoid valve 2 connected with the air supply pipe 11, and a control air pipe 3 communicated with the cylinder 6 is provided at the end of the air intake pipe 21; by means of the arrangement of the air supply pipe 11 and the air intake pipe 21, the air controlling the air cylinder 6 can be sent from the control air pipe 3 into the interior of the cylinder 6; an exhaust port 42 is provided at one end of the exhaust solenoid valve 4, an exhaust pipe 41 is provided at the end of the exhaust solenoid valve 4 away from the exhaust port 42, and the exhaust pipe 41 is communicated with the control air pipe 3;

[0030] In this embodiment, the exhaust solenoid valve 4 and the exhaust pipe 41 are both arranged corresponding to the cylinder 6; the exhaust solenoid valve 4 arranged corresponding to the cylinder 6 facilitates timely exhaust of the air in the cylinder 6 when the cylinder 6 is not in operation;

[0031] In this embodiment, the exhaust pipe 41, the intake pipe 21 and the control pipe 3 are connected to each other; the connection between the exhaust pipe 41, the intake pipe 21 and the control pipe 3 facilitates the control of the air in the cylinder 6 to flow in different pipes under different conditions;

[0032] During the use of the pneumatic valve plate enabling device, the air in the air supply tank 1 enters the air supply solenoid valve 2 through the air supply pipe 11, and then the air enters the cylinder 6 through the control air pipe 3 through the air intake pipe 21. At this time, the cylinder 6 can control the gate valve 7. When the gate valve 7 is not in use, the exhaust solenoid valve 4 is opened to discharge the air in the cylinder 6, release the pressure in the cylinder 6, and ensure the safety of the cylinder 6.

[0033] By means of the exhaust solenoid valve 4 arranged on the side of the air supply solenoid valve 2, the air supplied to the cylinder 6 can be cut off when the cylinder 6 is not operated. At the same time, the excess pressure in the cylinder 6 can be released to make the cylinder 6 at zero pressure, thereby increasing the service life of the cylinder 6 and reducing the possibility of process failures such as blockage, material leakage, etc. caused by misoperation of the cylinder 6. Example 2

[0034] like Figure 1-Figure 4 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0035] In order to improve the safety of the cylinder 6, the present embodiment provides the following design:

[0036] A control box 5 is provided at one end of the cylinder 6, and a controller 51 for controlling the exhaust solenoid valve 4 and the air supply solenoid valve 2 is provided on the top surface of the exhaust solenoid valve 4 and the air supply solenoid valve 2; the control box 5 and the controller 51 are provided to facilitate synchronous control of the exhaust solenoid valve 4 and the air supply solenoid valve 2;

[0037] In this embodiment, the air supply solenoid valve 2 and the exhaust solenoid valve 4 have two states: control and protection. In the control state, the exhaust solenoid valve 4 is closed, the air supply solenoid valve 2 is opened, and the air supply pipe 11 is connected to the control air pipe 3. In the protection state, the exhaust solenoid valve 4 is opened, the air supply solenoid valve 2 is closed, and the exhaust pipe 41 is connected to the exhaust port 42. The air supply solenoid valve 2 and the exhaust solenoid valve 4 in the control state are convenient for controlling the operation of the cylinder 6, and the air supply solenoid valve 2 and the exhaust solenoid valve 4 in the protection state can isolate the air entering the cylinder 6, and discharge the air in the cylinder 6 to release the pressure in the cylinder 6.

[0038] The working principle and use process of this utility model:

[0039] When in use, the air in the air supply tank 1 enters the air supply solenoid valve 2 through the air supply pipe 11, and then the air enters the cylinder 6 through the control air pipe 3 through the air intake pipe 21, so that the gate valve 7 can be controlled by the cylinder 6;

[0040] When the cylinder 6 is not operated for a long time, the staff will convert the air supply solenoid valve 2 and the exhaust solenoid valve 4 from the control state to the protection state through the control box 5 and the controller 51. The air supply solenoid valve 2 is closed to cut off the air entering the cylinder 6. At the same time, the exhaust solenoid valve 4 is opened to discharge the air in the cylinder 6 and release the excess pressure in the cylinder 6. The cylinder 6 can then control the gate valve 7. When the gate valve 7 is not in use, the exhaust solenoid valve 4 is opened to discharge the air in the cylinder 6 and release the pressure in the cylinder 6, so that the cylinder 6 is at zero pressure, thereby increasing the service life of the cylinder 6 and reducing the possibility of misoperation of the cylinder 6 or process failures such as blockage and material leakage.

Claims

1. Pneumatic valve plate enabling device, characterized in that: It comprises an air supply tank (1), wherein an air cylinder (6) is provided below the air supply tank (1), a gate valve (7) is provided at the end of the air cylinder (6), an air supply solenoid valve (2) is provided above the air cylinder (6), and an exhaust solenoid valve (4) is provided on the side of the air supply solenoid valve (2); An air supply pipe (11) is provided at one end of the air supply solenoid valve (2), and the air supply pipe (11) is connected to the air supply tank (1); an air intake pipe (21) is provided at the other end of the air supply solenoid valve (2) connected to the air supply pipe (11); and a control air pipe (3) connected to the cylinder (6) is provided at the end of the air intake pipe (21); An exhaust port (42) is provided at one end of the exhaust solenoid valve (4), and an exhaust pipe (41) is provided at one end of the exhaust solenoid valve (4) away from the exhaust port (42), wherein the exhaust pipe (41) is in communication with the control air pipe (3).

2. The pneumatic valve plate enabling device according to claim 1, characterized in that: The exhaust solenoid valve (4) and the exhaust pipe (41) are both arranged corresponding to the cylinder (6).

3. The pneumatic valve plate enabling device according to claim 2, characterized in that: The exhaust pipe (41), the air intake pipe (21) and the control air pipe (3) are arranged to be interconnected.

4. The pneumatic valve plate enabling device according to claim 1, characterized in that: A control box (5) is provided at one end of the cylinder (6), and a controller (51) for controlling the exhaust solenoid valve (4) and the air supply solenoid valve (2) is provided on the top surface of the exhaust solenoid valve (4) and the air supply solenoid valve (2).

5. The pneumatic valve plate enabling device according to claim 4, characterized in that: The air supply solenoid valve (2) and the exhaust solenoid valve (4) have two states: control and protection. In the control state: the exhaust solenoid valve (4) is closed, the air supply solenoid valve (2) is opened, and the air supply pipe (11) is connected to the control air pipe (3); In the protection state: the exhaust solenoid valve (4) is open, the air supply solenoid valve (2) is closed, and the exhaust pipe (41) is connected to the exhaust port (42).

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