CN218377736U - Bidirectional pressure spherical cambered surface hard alloy sealing butterfly valve - Google Patents

Abstract

The utility model discloses a two-way pressure spheroid cambered surface carbide seals butterfly valve, which comprises a valve body, the inside of valve body is provided with the valve pocket, the both ends of valve body all are provided with epitaxial end, two the spout has all been seted up to one side that epitaxial end is close to each other, be provided with the cambered surface closing plate that matches with the spout port in the spout, be provided with electric push rod in the spout, electric push rod with one side of cambered surface closing plate is connected, just the upper portion of valve body is provided with the connecting pipe, the upper end of connecting pipe is provided with the drive case, be provided with drive assembly and monitoring subassembly in the drive case. The utility model discloses can open and shut when rotating at sealed valve clack, reduce the inner wall friction between valve clack body and the valve pocket, prolong the life of sealed valve clack, whether can rotate according to the preset angle according to the turbine on the monitoring subassembly monitoring drive assembly simultaneously to judge whether normally open and shut of sealed valve clack.

Description

A two-way pressure spherical body curved surface hard alloy sealing butterfly valve

technical field

The utility model relates to the technical field of butterfly valves, in particular to a two-way pressure spherical arc surface hard alloy sealing butterfly valve.

Background technique

Bi-directional pressure butterfly valves are widely used in coal chemical, petrochemical, rubber, paper, pharmaceutical and other pipelines as media diversion and confluence or flow switching devices.

However, when the existing two-way pressure butterfly valve is closed, there is friction between the sealing surface of the disc and the inner cavity of the valve body (1), and long-term operation is likely to cause wear on the sealing surface of the disc.

Utility model content

The purpose of this utility model is to provide a two-way pressure spherical arc surface hard alloy sealing butterfly valve to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a two-way pressure spherical arc surface hard alloy sealing butterfly valve, including a valve body, the inside of the valve body is provided with a valve cavity, and the two ends of the valve body are An extension end is provided, and a chute is provided on the side where the two extension ends are close to each other, and an arc-shaped sealing plate matching the port of the chute is arranged in the chute, and an electric push rod is arranged in the chute , the electric push rod is connected to one side of the arc sealing plate, and the upper part of the valve body is provided with a connecting pipe, and the upper end of the connecting pipe is provided with a driving box, and a driving assembly is arranged in the driving box and monitoring components.

Preferably, both inner and outer ends of the valve body are provided with flanges.

Preferably, the inner and outer sides of the arc-shaped sealing plate are provided with sealing strips, and the sealing strips are slidably connected to the inner wall of the chute.

Preferably, a sealing disc is arranged in the valve chamber, and a valve stem is arranged on the upper part of the sealing valve flap, and the valve stem is arranged in the connecting pipe.

Preferably, the drive assembly includes a rotating shaft, a worm gear and a worm, the rotating shaft is arranged on the inner wall of the bottom end of the drive box, the bottom end of the rotating shaft is connected to the top end of the valve stem, and the worm gear Set on the top of the rotating shaft, the worm is set on the inner walls of both sides of the drive box, one side of the drive box is provided with a drive motor, the output shaft of the drive motor is connected to one end of the worm .

Preferably, the monitoring component includes an infrared emitter and an infrared receiver, the infrared emitter and the infrared receiver are respectively arranged on the upper and lower inner walls of the drive box, and the surface of the turbine is provided with two a calibration hole.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model sets the valve body, the extension end, the electric push rod, the arc surface sealing plate and the sealing strip, which can lower the inner wall between the valve clack body and the valve cavity when the sealing valve clack is opened and closed. Friction, prolong the service life of the sealing disc;

2. The utility model is also equipped with a driving component and a monitoring component, and according to the monitoring component, it is monitored whether the turbine on the driving component rotates according to a preset angle, so as to judge whether the sealing disc is opened and closed normally.

Description of drawings

Fig. 1 is the external structure schematic diagram of the present utility model;

Fig. 2 is the partial sectional structure schematic diagram of the utility model;

Fig. 3 is a schematic diagram of the front sectional structure of the drive box of the present invention.

In the figure: 1. Valve body; 2. Valve cavity; 3. Extended end; 4. Arc surface sealing plate; 5. Electric push rod; 6. Connecting pipe; 7. Drive box; 8. Drive assembly; ; 82, turbine; 83, worm; 9, monitoring component; 91, infrared emitter; 92, infrared receiver; 10, sealing strip; 11, sealing disc; 12, valve stem; 13, drive motor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a two-way pressure spherical arc surface hard alloy sealing butterfly valve, including a valve body 1 in the shape of a hollow circular shell, and a valve cavity 2 is installed inside the valve body 1 , the two ends of the valve body 1 are fixedly installed with extension ends 3, and the side of the two extension ends 3 close to each other is provided with a chute, and an arc-shaped sealing plate 4 matching the port of the chute is installed in the chute, and the chute An electric push rod 5 is fixedly installed inside, and the electric push rod 5 is fixedly connected with one side of the arc surface sealing plate 4, and a connecting pipe 6 is installed on the upper part of the valve body 1, and a driving box 7 is installed on the upper end of the connecting pipe 6, and the driving box A driving component 8 and a monitoring component 9 are installed in the 7;

The inner and outer ends of the valve body 1 are equipped with flanges, and the inner and outer sides of the arc sealing plate 4 are equipped with sealing strips 10. The sealing strips 10 are connected to the inner wall of the chute by sliding. In order to seal the chute, the valve A sealing disc 11 is installed in rotation in the chamber 2, and a valve stem 12 is fixedly installed on the upper part of the sealing disc 11. The valve stem 12 is installed in the connecting pipe 6. The driving assembly 8 includes a rotating shaft 81, a turbine 82 and a worm 83, and the rotating shaft 81 is rotatably installed on the inner wall of the bottom end of the driving box 7, the bottom end of the rotating shaft 81 is connected with the top of the valve stem 12, the worm gear 82 is installed on the top of the rotating shaft 81, and the worm 83 is rotatably installed on the inner walls of both sides of the driving box 7 , one side of drive box 7 is fixedly installed with driving motor 13, and the output shaft of driving motor 13 is connected with one end of worm screw 83, and monitoring assembly 9 comprises infrared emitter 91 and infrared receiver 92, and infrared emitter 91 and infrared receiver 92 They are installed on the inner walls of the upper and lower sides of the driving box 7 respectively, and the surface of the turbine 82 is provided with two calibration holes, and the distance between the two calibration holes is 90°.

Working principle: When in use, when the sealing disc 11 needs to be rotated, the two electric push rods 5 are first contracted to drive the arc-shaped sealing plates 4 on the inner walls of the valve cavity 2 to move toward the chute, and the sealing valve is released. The abutment between the flap 11 and the arc-shaped sealing plate 4, and then the valve rod 12 is driven by the drive assembly 8 to drive the sealing valve flap 11 to rotate, reducing the friction area of the sealing flap 11 when opening and closing, and at the same time, the driving motor 13 drives During the rotation of the worm 83 so that the turbine 82 rotates, the two calibration holes provided on the turbine 82 can pass the infrared rays emitted by the upper infrared emitter 91 to the infrared receiver 92 below through the calibration holes. Once the turbine 82 rotates by an angle If there is an error, the calibration hole cannot allow the infrared rays to pass smoothly, causing the infrared receiver 92 to fail to receive the signal normally. At this time, it indicates that there is a fault in the opening and closing of the sealing valve clack 11 and needs to be repaired.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A two-way pressure spherical arc surface hard alloy sealing butterfly valve, including a valve body (1), characterized in that: the valve body (1) is provided with a valve cavity (2), and the valve body (1) ) are provided with extension ends (3), and the sides of the two extension ends (3) that are close to each other are provided with a chute, and an arc sealing plate matching the port of the chute is arranged in the chute (4), an electric push rod (5) is arranged in the chute, and the electric push rod (5) is connected to one side of the curved sealing plate (4), and the valve body (1) The upper part is provided with a connecting pipe (6), and the upper end of the connecting pipe (6) is provided with a driving box (7), and the driving box (7) is provided with a driving assembly (8) and a monitoring assembly (9). 2. A two-way pressure spherical arc surface hard alloy sealing butterfly valve according to claim 1, characterized in that: the inner and outer ends of the valve body (1) are provided with flanges. 3. A two-way pressure spherical arc surface hard alloy sealing butterfly valve according to claim 1, characterized in that: the inner and outer sides of the arc sealing plate (4) are provided with sealing strips (10), so The sealing strip (10) is slidingly connected with the inner wall of the chute. 4. A two-way pressure spherical arc surface hard alloy sealed butterfly valve according to claim 1, characterized in that: a sealing disc (11) is arranged in the valve chamber (2), and the sealing disc ( 11) is provided with a valve stem (12), and the valve stem (12) is arranged in the connecting pipe (6). 5. A two-way pressure spherical arc surface carbide sealing butterfly valve according to claim 4, characterized in that: the drive assembly (8) includes a rotating shaft (81), a turbine (82) and a worm (83) , the rotating shaft (81) is set on the inner wall of the bottom end of the driving box (7), the bottom end of the rotating shaft (81) is connected with the top end of the valve stem (12), and the turbine (82 ) is set on the top of the rotating shaft (81), the worm (83) is set on the inner walls of both sides of the drive box (7), and a drive motor (13) is set on one side of the drive box (7) ), the output shaft of the drive motor (13) is connected to one end of the worm (83). 6. A two-way pressure spherical arc surface hard alloy sealed butterfly valve according to claim 5, characterized in that: the monitoring component (9) includes an infrared transmitter (91) and an infrared receiver (92), the The infrared emitter (91) and the infrared receiver (92) are respectively arranged on the upper and lower inner walls of the drive box (7), and two calibration holes are opened on the surface of the turbine (82).

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