Butterfly valve inflation sealing device for continuous granulation production line

Abstract

The utility model belongs to the technical field of food production and processing, and particularly relates to a butterfly valve inflation sealing device for a continuous granulation production line. A pneumatic butterfly valve sealing mode on a continuous granulation production line is changed into a sealing ring inflatable sealing mode controlled by the electromagnetic valve, and when the valve is closed, the sealing ring begins to be inflated and sealed. When the valve needs to be opened to convey materials, the sealing ring can be deflated and retracted and does not make contact with the valve plate, and friction between the sealing ring and the valve plate is avoided when the valve plate is opened and closed. The service life of the sealing ring is remarkably prolonged, quality accidents caused by valve body sealing failure of a production line are reduced, and the production cost of the production line is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to food production and processing technical field especially relates to a butterfly valve inflation sealing device for continuous granulation production line. BACKGROUND

[0002] Valve is a kind of device widely used in pipeline transportation fluid control, common valve has ball valve, stop valve, butterfly valve etc.. Butterfly valve, also called flap valve, its structure is relatively simple, mainly used in the flow and flow control of water, natural gas, oil, liquid fluid in pipeline. Butterfly valve rotates around valve stem by valve plate to reach the opening and closing function, it has the advantage of quick on-off speed, but the valve stem of butterfly valve is easy to damage, and the sealing performance is poor. According to the different sealing forms, butterfly valve is divided into soft sealing butterfly valve and hard sealing butterfly valve. Soft sealing butterfly valve adopts rubber, silica gel and other non-metallic materials for sealing;Hard sealing butterfly valve generally adopts metal material for sealing. In the powder conveying pipeline of continuous granulation production line, butterfly valve is often used, and the sealing ring is soft sealed by using silica gel material, however, in production, the valve plate is switched frequently, which often leads to wear of sealing ring and gap between valve plate, which can cause quality risk such as powder leakage and water mixing during cleaning, resulting in frequent replacement and maintenance of sealing ring. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problem of easy wear and poor sealing performance of the sealing ring of the pneumatic butterfly valve of the continuous granulation conveying pipeline, the utility model provides a butterfly valve inflation sealing device, which reduces the wear of the sealing ring of the butterfly valve, prolongs the service life of the sealing ring, improves the sealing performance of the butterfly valve and reduces the production cost of the continuous granulation production line.

[0004] Specifically:

[0005] The utility model provides a butterfly valve inflation sealing device, the device includes device fixed plate 3, installs pressure regulating valve 2 on fixed plate 3, pneumatic delay valve 1, actuator 8;There is electromagnetic valve 6, first throttle valve 7 and second throttle valve 9 on the actuator, the opening and closing action of valve plate 5 is adjusted by controlling first throttle valve 7 and second throttle valve 9 through electromagnetic valve 6;The lower end of actuator 8 is connected with valve body 10, and there is independent sealing ring 11, valve plate 5 and inflation interface 4 in valve body 10.

[0006] In the utility model, the butterfly valve inflation sealing device controls the starting time of inflation by pneumatic delay valve 1;The starting time is adjustable;

[0007] In an embodiment, the starting time of inflation controlled by pneumatic delay valve 1 is 1-3 seconds after the valve is closed.

[0008] In the utility model, the butterfly valve inflation sealing device adjusts the inflation pressure size by pressure regulating valve 2.

[0009] In the utility model, the air source enters the sealing ring 11 through the valve body internal pipeline from the inflation interface.

[0010] In the utility model, the sealing ring inflation sealing process of the butterfly valve inflation sealing device is that the switch valve control system provides the electric signal to the electromagnetic valve 6, the electromagnetic valve 6 receives the signal and starts to act, one way air source controlled by the electromagnetic valve 6 enters the actuator 8 from the first throttle valve 7 through the gas pipeline, the actuator 8 starts to execute the valve closing program control valve plate 5 to enter the valve closing state, until the valve plate 5 is completed to close the valve to the closed position. At the same time, the other way air source controlled by the electromagnetic valve 6 passes through the pneumatic delay valve 1 and is delayed for 1-3 seconds, and then the output air source is exported to the pressure regulating valve 2, after pressure reduction, the air source is circulated to the inflation interface 4 through the valve body internal pipeline to inflate the sealing ring 11, so that the sealing ring 11 is closely attached to the valve plate 5, the valve body is sealed, and the valve closing process is completed.

[0011] In the utility model, the sealing ring inflation sealing process of the butterfly valve inflation sealing device is that the switch valve control system provides the electric signal to the electromagnetic valve 6, the electromagnetic valve 6 receives the signal and starts to act, one way air source controlled by the electromagnetic valve 6 enters the actuator 8 from the first throttle valve 7 through the gas pipeline, the actuator 8 starts to execute the valve closing program control valve plate 5 to enter the valve closing state, until the valve plate 5 is completed to close the valve to the closed position. At the same time, the other way air source controlled by the electromagnetic valve 6 passes through the pneumatic delay valve 1 and is delayed for 1-3 seconds, and then the output air source is exported to the pressure regulating valve 2, after pressure reduction, the air source is circulated to the inflation interface 4 through the valve body internal pipeline to inflate the sealing ring 11, so that the sealing ring 11 is closely attached to the valve plate 5, the valve body is sealed, and the valve closing process is completed.

[0012] Advantageous effects

[0013] (1) the utility model discloses the sealing mode of the pneumatic butterfly valve on the continuous granulation production line is changed into the sealing mode of the sealing ring inflation type sealing controlled by the electromagnetic valve, when the valve is closed, the sealing ring starts to inflate and seal. When the valve needs to open and transport materials, the sealing ring can deflate and retract, and there is no contact with the valve plate. When the valve plate opens and closes, it will not rub with the sealing ring. The service life of the sealing ring is significantly prolonged, the quality accidents caused by the sealing failure of the valve body in the continuous granulation production line are reduced, and the production cost of the production line is reduced.

[0014] (2) the butterfly valve inflation sealing device disclosed by the utility model increases pressure regulation and detection in the inflation pipeline of the inflation sealing ring, guarantees the sealing property of the sealing ring, and can monitor the sealing effect in real time. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 : the structure diagram of the utility model device, wherein, the pneumatic delay valve 1, the pressure regulating valve 2, the device fixing plate 3, the inflation interface 4, the valve plate 5, the electromagnetic valve 6, the first throttle valve 7, the actuator 8, the second throttle valve 9, the valve body 10 and the sealing ring 11. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0017] In the present application, it should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, and the like), the directional indications are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0018] Embodiment 1

[0019] The butterfly valve inflation sealing device comprises a device fixing plate 3, a pressure regulating valve 2, a pneumatic delay valve 1 and an actuator 8 mounted on the fixing plate 3. The actuator 8 is provided with a solenoid valve 6, a first throttle valve 7 and a second throttle valve 9. The first throttle valve 7 and the second throttle valve 9 are controlled by the solenoid valve 6 to adjust the opening and closing action of a valve plate 5. The lower end of the actuator 8 is connected to a valve body 10. The valve body 10 is provided with a sealing ring 11 and the valve plate 5 which are independent of each other, and an inflation interface 4.

[0020] The device fixing plate 3 of the butterfly valve inflation sealing device can integrate all components of the inflation sealing device on the fixing plate, and can conveniently install the butterfly valve inflation sealing device on the required position of the continuous granulation production line and cooperate with other devices of the production line.

[0021] In the present embodiment, the butterfly valve inflation sealing device controls the inflation start time through the pneumatic delay valve 1, and the start time is adjustable.

[0022] In the present embodiment, the inflation start time controlled by the pneumatic delay valve 1 is 1-3 seconds after the valve is closed.

[0023] In the present embodiment, the butterfly valve inflation sealing device adjusts the inflation pressure through the pressure regulating valve 2.

[0024] In the present embodiment, the gas source enters the sealing ring 11 through the internal pipeline of the valve body through the inflation interface.

[0025] In the embodiment, the sealing ring inflation sealing process of the butterfly valve inflation sealing device is as follows: the switch valve control system provides an electric signal to the electromagnetic valve 6, the electromagnetic valve 6 receives the signal to start action, a gas source controlled by the electromagnetic valve 6 enters the actuator 8 from the first throttle valve 7 through a gas pipeline, the actuator 8 starts to execute the valve closing program to control the valve plate 5 to enter the valve closing state, until the valve plate 5 reaches the closed position to complete the valve closing. At the same time, the other gas source controlled by the electromagnetic valve 6 passes through the pneumatic delay valve 1 to delay for 1-3 seconds, and then outputs the gas source to the pressure regulating valve 2, after pressure reduction, the gas source flows to the inflation interface 4 through the internal pipeline of the valve body to inflate the sealing ring 11, so that the sealing ring 11 closely adheres to the valve plate 5 to seal the valve body, and the valve closing process is completed.

[0026] In the embodiment, the sealing ring inflation sealing process of the butterfly valve inflation sealing device is as follows: the switch valve control system provides an electric signal to the electromagnetic valve 6, the electromagnetic valve 6 receives the signal to start action, a gas source controlled by the electromagnetic valve 6 enters the actuator 8 from the first throttle valve 7 through a gas pipeline, the actuator 8 starts to execute the valve closing program to control the valve plate 5 to enter the valve closing state, until the valve plate 5 reaches the closed position to complete the valve closing. At the same time, the other gas source controlled by the electromagnetic valve 6 passes through the pneumatic delay valve 1 to delay for 1-3 seconds, and then outputs the gas source to the pressure regulating valve 2, after pressure reduction, the gas source flows to the inflation interface 4 through the internal pipeline of the valve body to inflate the sealing ring 11, so that the sealing ring 11 closely adheres to the valve plate 5 to seal the valve body, and the valve closing process is completed.

[0027] The butterfly valve inflation sealing device of the utility model is used for continuous granulation production line, has reduced valve plate sealing wear and tear and quality accident, has guaranteed tablet granulation product quality, and has reduced production cost.

[0028] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A butterfly valve air seal assembly comprising: The device comprises a device fixing plate (3), a pressure regulating valve (2) installed on the fixing plate (3), a pneumatic delay valve (1), an actuator (8), an electromagnetic valve (6), a first throttle valve (7) and a second throttle valve (9) on the actuator, the electromagnetic valve (6) controls the first throttle valve (7) and the second throttle valve (9) to regulate the opening and closing of a valve plate (5), the lower end of the actuator (8) is connected with a valve body (10), the valve body (10) has a sealing ring (11) and the valve plate (5) which are independent of each other and a charging interface (4).

2. The butterfly valve air seal apparatus of claim 1, wherein, The butterfly valve charging sealing device controls the starting time of charging through the pneumatic delay valve (1).

3. The butterfly valve air seal apparatus of claim 2, wherein, The pneumatic delay valve (1) controls the starting time of charging to be 1-3 seconds after the valve is closed.

4. The butterfly valve air seal apparatus of claim 1, wherein, The butterfly valve charging sealing device adjusts the charging pressure through the pressure regulating valve (2).

5. The butterfly valve air seal apparatus of claim 4, wherein, The bottom of the pressure regulating valve (2) has an exhaust port.

6. The butterfly valve air seal apparatus of claim 1, wherein, The air source enters the sealing ring (11) through the internal pipeline of the valve body (10) through the charging interface.

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