Water seal electric flap valve

Abstract

The utility model relates to the technical field of flap valves, in particular to a water seal electric flap valve which comprises a left valve body, a right valve body and a valve plate, valve body sealing rings are arranged on the sealing faces of the left valve body and the right valve body, and valve plate sealing rings are arranged on the left side and the right side of the valve plate and matched with the valve body sealing rings of the left valve body and the right valve body respectively. At least two sealing rubber rings are arranged between any valve body sealing ring and the corresponding valve plate sealing ring, and the sealing rubber rings are matched with the valve plate sealing rings and the valve body sealing rings to form an annular water sealing space; a water inlet three-way pipe and a water drainage three-way pipe are arranged at the lower end of the valve plate, another through hole of the water inlet three-way pipe is connected with a water supply pipe, and another through hole of the water drainage three-way pipe is connected with a water drainage pipe. The water inlet channel and the water outlet channel are additionally arranged on the lower portion of the sealing ring of the valve body, the water seal space is formed by the valve plate, the sealing piece on the valve body and the sealing rubber ring, when the rubber sealing ring is aged and fails, the water seal space is damaged to cause water leakage, and personnel can conveniently find and handle the water leakage in time.

Description

Technical Field

[0001] The utility model relates to the technical field of flap valves, and more specifically to a water-sealed electric flap valve. Background Art

[0002] Electric flap valves play the role of opening and blocking in industrial pipelines and are widely used in pipelines in metallurgy, petroleum, chemical industry, gas and other industrial sectors. The working principle of flap valves is to open and block pipelines by rotating the valve plate. Existing flap valves have problems such as aging and leakage of rubber sealing rings, which are difficult to detect, and there are safety hazards under explosion-proof conditions. In order to solve these problems, it is necessary to develop an electric flap valve that can detect sealing leakage in time. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, a water-sealed electric flap valve is provided.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A water-sealed electric flap valve comprises a left valve body, a right valve body and a valve plate, wherein the sealing surfaces of the left valve body and the right valve body are both provided with valve body sealing rings, and the left and right sides of the valve plate are both provided with valve plate sealing rings which cooperate with the valve body sealing rings of the left valve body and the right valve body respectively;

[0006] At least two sealing rubber rings are arranged between any of the valve body sealing rings and the corresponding valve plate sealing ring, and the sealing rubber rings cooperate with the valve plate sealing ring and the valve body sealing ring to form an annular water seal space;

[0007] An inlet tee and a drain tee are provided at the lower end of the valve plate. Two through holes of the inlet tee and the drain tee are respectively connected to the water seal space on both sides of the valve plate, another through hole of the inlet tee is connected to the water supply pipe, and another through hole of the drain tee is connected to the drain pipe.

[0008] Preferably, two sealing rubber rings are provided to constitute any water seal space, and the two sealing rubber rings are arranged concentrically.

[0009] Preferably, the sealing rubber ring is fixedly arranged on the valve body sealing ring, and a side of the sealing rubber ring close to the valve plate sealing ring exceeds the sealing surface of the valve body sealing ring.

[0010] Preferably, the sealing rubber ring is fixedly arranged on the valve plate sealing ring, and a side of the sealing rubber ring close to the valve body sealing ring exceeds the sealing surface of the valve plate sealing ring.

[0011] Preferably, a radial blind hole is provided on the outer side of any valve body sealing ring, an axial blind hole connecting the radial blind hole and the water seal space is provided inside the valve body sealing ring, and the water inlet tee or the drainage tee is connected to the radial blind hole.

[0012] Preferably, the water inlet tee pipe and the drainage tee pipe are provided with switch valves, and the pipeline between the switch valve and the water seal space is provided with a pressure sensor.

[0013] Preferably, a controller is further included, the pressure sensor is electrically connected to the controller, and the controller is electrically connected to an alarm.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model adds water inlet and water outlet channels at the bottom of the valve body sealing ring, forms a water seal space through the valve plate, the sealing member on the valve body and the sealing rubber ring, and when the sealing pair between the valve body and the valve plate is in close contact, water is injected into the water seal space to achieve double sealing of the rubber sealing ring and water. When the rubber sealing ring ages and fails, the water seal space is damaged and leaks occur, which is convenient for personnel to find and handle in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a side view of the structure of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0019] Figure 3 This is a front view structural schematic diagram of the utility model.

[0020] In the figure: 1-left valve body, 2-right valve body, 3-valve plate, 4-valve body sealing ring, 5-valve plate sealing ring, 6-sealing rubber ring, 7-water seal space, 8-tee pipe, 9-radial blind hole, 10-axial blind hole, 11-switch valve, 12-pressure sensor, 13-alarm, 14-water supply pipe, 15-clamping device, 16-flap device. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] like Figures 1 to 3As shown, a water-sealed electric flap valve comprises a left valve body 1, a right valve body 2 and a valve plate 3, a clamping device 15 for controlling the gap is arranged between the left valve body 1 and the right valve body 2, and a flap device 16 is arranged between the left valve body 1 or the right valve body 2 and the valve plate 3.

[0023] Valve body sealing rings 4 are arranged on the sealing surfaces of the left valve body 1 and the right valve body 2, and valve plate sealing rings 5 ​​are arranged on the left and right sides of the valve plate 3. The two valve plate sealing rings 5 ​​cooperate with the two valve body sealing rings 4 to form a sealing pair.

[0024] At least two sealing rubber rings 6 are arranged between any valve body sealing ring 4 and the corresponding valve plate sealing ring 5. In this embodiment, two concentrically arranged sealing rubber rings 6 are used. The sealing rubber ring 6, the valve plate sealing ring 5, and the two valve body sealing rings 4 cooperate to form an annular water seal space 7, which is located in the circumferential direction of the medium hole of the valve body.

[0025] In order to supply water and drain water to the water seal space 7, a water inlet tee 8 and a drainage tee are arranged at the lower end of the valve plate 3. Two through holes of the water inlet tee 8 and the drainage tee are respectively connected to the water seal spaces 7 on both sides of the valve plate 3, so as to supply water or drain water to the water seal spaces 7 on both sides at the same time. The other through hole of the water inlet tee 8 is connected to the water supply pipe 14, and the other through hole of the drainage tee is connected to the drainage pipe.

[0026] A switch valve 11 is provided on the water inlet tee pipe 8 and the drainage tee pipe for controlling the on and off of the pipeline. A pressure sensor 12 is provided on the pipeline between the switch valve 11 and the water seal space 7 for the water pressure in the pipeline. The pressure sensor 12 is electrically connected to the controller, and the controller is electrically connected to an alarm 13.

[0027] When the left valve body 1 and the right valve body 2 clamp the valve plate 3 under the action of the clamping device 15, the switch valves 11 on the water inlet tee 8 and the drainage tee are opened, and water is supplied through the water supply pipe 14. Then, the switch valve 11 on the drainage tee is closed first, and after the water seal space is filled with water, the switch valve 11 on the water inlet tee 8 is closed, and the water pressure is monitored by the pressure sensor 12. When the water seal space is damaged and leaks, the pressure sensor 12 feeds back the signal to the controller and controls the alarm 13 to alarm.

[0028] The sealing rubber ring 6 is fixedly arranged on the valve body sealing ring 4, and the side of the sealing rubber ring 6 close to the valve plate sealing ring 4 exceeds the sealing surface of the valve body sealing ring 4; or the sealing rubber ring 6 is fixedly arranged on the valve plate sealing ring 5, and the side of the sealing rubber ring 6 close to the valve body sealing ring 4 exceeds the sealing surface of the valve plate sealing ring 5.

[0029] Preferably, a radial blind hole 9 is provided on the outer side of any valve body sealing ring 4, an axial blind hole 10 connecting the radial blind hole 9 with the water seal space 7 is provided inside the valve body sealing ring 4, and the water inlet tee 8 or the drainage tee is connected to the radial blind hole 9, so as to facilitate the connection between the tee and the water seal space 7.

[0030] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A water-sealed electric flap valve, comprising a left valve body (1), a right valve body (2) and a valve plate (3), characterized in that: The sealing surfaces of the left valve body (1) and the right valve body (2) are both provided with valve body sealing rings (4), and the left and right sides of the valve plate (3) are both provided with valve plate sealing rings (5) which respectively cooperate with the valve body sealing rings (4) of the left valve body (1) and the right valve body (2); At least two sealing rubber rings (6) are arranged between any of the valve body sealing rings (4) and the corresponding valve plate sealing ring (5), and the sealing rubber rings (6) cooperate with the valve plate sealing ring (5) and the valve body sealing ring (4) to form an annular water seal space (7); A water inlet tee (8) and a water discharge tee are provided at the lower end of the valve plate (3); two through holes of the water inlet tee (8) and the water discharge tee are respectively connected to the water seal spaces (7) on both sides of the valve plate (3); another through hole of the water inlet tee (8) is connected to a water supply pipe (14); and another through hole of the water discharge tee is connected to a water discharge pipe.

2. The water-sealed electric flap valve according to claim 1, characterized in that: The number of sealing rubber rings (6) constituting any water seal space (7) is two, and the two sealing rubber rings (6) are concentrically arranged.

3. A water-sealed electric flap valve according to claim 1 or 2, characterized in that: The sealing rubber ring (6) is fixedly arranged on the valve body sealing ring (4), and the side of the sealing rubber ring (6) close to the valve plate sealing ring (5) protrudes beyond the sealing surface of the valve body sealing ring (4).

4. A water-sealed electric flap valve according to claim 1 or 2, characterized in that: The sealing rubber ring (6) is fixedly arranged on the valve plate sealing ring (5), and the side of the sealing rubber ring (6) close to the valve body sealing ring (4) protrudes beyond the sealing surface of the valve plate sealing ring (5).

5. The water-sealed electric flap valve according to claim 3, characterized in that: A radial blind hole (9) is provided on the outer side of any of the valve body sealing rings (4), an axial blind hole (10) communicating the radial blind hole (9) with the water seal space (7) is provided inside the valve body sealing ring (4), and the water inlet tee (8) or the water discharge tee is connected to the radial blind hole (9).

6. The water-sealed electric flap valve according to claim 1, characterized in that: The water inlet tee pipe (8) and the water discharge tee pipe are provided with switch valves (11), and a pressure sensor (12) is provided on the pipeline between the switch valve (11) and the water seal space (7).

7. The water-sealed electric flap valve according to claim 6, characterized in that: It also includes a controller, the pressure sensor (12) is electrically connected to the controller, and the controller is electrically connected to an alarm (13).

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