CN210716006U

CN210716006U - Novel sealing element of butterfly valve

Info

Publication number: CN210716006U
Application number: CN201921902542.2U
Authority: CN
Inventors: 徐传堂; 薛旻
Original assignee: China Resources Power Changshu Co Ltd
Current assignee: China Resources Power Changshu Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-06-09
Anticipated expiration: 2029-11-06

Abstract

The utility model provides a novel sealing member of butterfly valve, include: the valve body, the valve butterfly, the disk seat, seal assembly, the valve body has the pipeline of bi-pass, set up the disk seat on the route, the valve butterfly overturns on the disk seat position, seal assembly in addition between valve butterfly and the disk seat, when the valve butterfly is in the closed condition, the valve butterfly, disk seat and seal assembly closely laminate and form sealedly, seal assembly install the disk seat on, seal assembly include the clamp plate, the sealing washer, the clamp plate on have the bolt hole, the disk seat on also have the bolt hole that matches, use bolted connection to install the sealing washer under the clamp plate on the disk seat hole, the utility model discloses on transferring seal assembly's sealed face to the disk seat, make seal assembly fix on the disk seat, avoid seal assembly to receive the impact of rivers and damage when the valve butterfly rotates, reduce sealed face and receive the probability of blowing damage.

Description

Novel sealing element of butterfly valve

Technical Field

The utility model relates to a pipeline valve field especially relates to a novel sealing member of butterfly valve.

Background

The butterfly valve is as the commonly used valve in power plant, and present butterfly valve is usually installed seal assembly on the case, and in the use, seal assembly receives the direct blow of rivers and steam easily, and sealed face receives the blow-off easily to the phenomenon that leaks in leading to the valve.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the above-mentioned background art, the utility model provides a novel butterfly valve seal assembly, include: valve body, valve butterfly, disk seat, seal assembly, the valve body have the pipeline of bi-pass, set up the disk seat on the route, the valve butterfly overturns on the disk seat position, and seal assembly in addition between valve butterfly and the disk seat, when the valve butterfly is in the closure state, valve butterfly, disk seat and seal assembly closely laminate and form sealedly, seal assembly installation disk seat on, seal assembly include clamp plate, sealing washer, the clamp plate on have the bolt hole, the disk seat on also have the bolt hole that matches, use bolted connection to install the sealing washer under the clamp plate on the disk seat hole.

Furthermore, a pressure ring is laminated below the sealing ring, and the pressure ring is an annular ring and is tightly matched with the valve seat.

Furthermore, the valve seat is provided with a groove, the shape of the groove is matched with that of the pressing ring, and the pressing ring is embedded in the groove.

Further, the disk seat divide into two parts, outside body and inside body, the length of outside body is greater than the length of inside body, the first end of outside body with the first end of inside body aligns, outside body and inside body integrated into one piece, the bolt hole sets up on the second terminal surface of inside body.

Further, the outer diameter of the sealing ring is larger than the inner diameter of the inner pipe body and smaller than the outer diameter of the inner pipe body, the inner diameter of the sealing ring is smaller than the inner diameter of the inner pipe body, the sealing ring is placed on the second end face of the inner pipe body, and the sealing ring below the pressing plate is fixed on the second end face of the inner pipe body through bolts.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a with on sealing component shifts the disk seat from the valve disc, make sealing component can fix on the disk seat, receive the impact of rivers and damage when avoiding sealing component to follow the valve disc rotation.

2. The utility model discloses on transferring seal assembly's sealed face to the disk seat, reduce sealed face and receive the probability of blowing damage.

3. The utility model discloses on transferring the disk seat with seal assembly from the valve dish, reduced the weight of valve dish, make the rotation of valve dish lighter, reduce the rotation load when the butterfly valve is opened and is closed.

Drawings

Fig. 1 is an exploded view of a seal of a new butterfly valve.

Wherein 1 valve body, 2 valve butterflies, 3 disk seats, 4 seal assembly, 5 clamp plates, 6 sealing washers, 7 bolt holes, 8 bolts, 9 disk seat holes.

Detailed Description

In order to make the aforementioned and other features and advantages of the present invention more comprehensible, embodiments accompanying the drawings are described in detail below, and it is to be understood that the described embodiments are not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person having ordinary skill in the art without creative efforts shall belong to the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

The present invention will be described in detail with reference to the drawings, and in order to describe the embodiments of the present invention in detail, the cross-sectional view showing the structure of the device will not be enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Meanwhile, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner, outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted, connected and connected" in the present application are to be understood broadly, unless otherwise explicitly stated or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Example 1

As shown in the figure, the utility model provides a novel sealing member of butterfly valve, include: valve body 1, valve butterfly 2, disk seat 3, seal assembly 4, the valve body have the pipeline of bi-pass, set up disk seat 3 on the route, the upset of valve butterfly 2 on disk seat 3 position, seal assembly 4 in addition between valve butterfly 2 and the disk seat 3, when valve butterfly 2 is in the closed condition, valve butterfly 2, disk seat 3 and seal assembly 4 closely laminate and form sealedly, seal assembly 4 installation disk seat 3 on, seal assembly 4 include clamp plate 5, sealing washer 6, clamp plate 5 on have bolt hole 7, disk seat 3 on also have the bolt hole 7 that matches, use the 8 connection of bolt to install seal ring 6 under clamp plate 5 on disk seat hole 9.

And a pressure ring is laminated below the sealing ring 6, and the pressure ring is an annular ring and is tightly matched with the valve seat.

The valve seat is provided with a groove, the shape of the groove is matched with that of the pressing ring, and the pressing ring is embedded in the groove.

Example 2

As shown in the drawings, a second embodiment of the present invention is different from the first embodiment in that: the valve seat is divided into two parts, namely an outer pipe body and an inner pipe body, the length of the outer pipe body is larger than that of the inner pipe body, the first end of the outer pipe body is aligned with the first end of the inner pipe body, the outer pipe body and the inner pipe body are integrally formed, the bolt holes are formed in the second end face of the inner pipe body, the outer diameter of the sealing ring is larger than the inner diameter of the inner pipe body and smaller than the outer diameter of the inner pipe body, the inner diameter of the sealing ring 6 is smaller than that of the inner pipe body, and the sealing ring 6 is placed on the second end face of the inner pipe body and fixes the sealing ring 6 below the pressing plate 5 on the second end face of the inner pipe.

Compared with the embodiment 1, the structure of the valve seat 3 and the installation position of the sealing assembly 4 are further defined, so that the sealing assembly 4 is easier and more convenient to install on the valve seat 3, and the replacement and maintenance of the sealing ring 6 are facilitated.

The rest of the structure is the same as that of embodiment 1.

Principle of operation

The utility model discloses pass through the clamp plate with the sealing washer and fix inside the disk seat to set up the valve disc that can overturn on the route of disk seat, when the valve disc seals, thereby the disconnection route is in the same place in close laminating between disk seat, sealing washer, the valve disc, when the valve disc overturns, the inside unblocked passageway that forms of disk seat. The sealing component is transferred from the valve disc to the valve seat, so that the sealing component can be fixed on the valve seat, the sealing component is prevented from being damaged due to the impact of water flow when rotating along with the valve disc, and the probability of blowing damage to the sealing surface is reduced; the utility model discloses on transferring seal assembly's sealed face to the disk seat, reduce sealed face and receive the probability of blowing damage, the utility model discloses on transferring seal assembly from the valve dish to the disk seat, reduced the weight of valve dish, make the rotation of valve dish lighter, reduce the rotation load when the butterfly valve is opened and is closed.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a novel sealing member of butterfly valve, the butterfly valve constitute by valve body, valve butterfly, disk seat, seal assembly, the valve body have the pipeline of two-way, set up the disk seat on the route, the valve butterfly overturns on the disk seat position, seal assembly in addition between valve butterfly and the disk seat, when the valve butterfly is in the closed condition, valve butterfly, disk seat and seal assembly closely laminate and form sealedly, a serial communication port, seal assembly installation disk seat on, seal assembly include clamp plate, sealing washer, the clamp plate on have the bolt hole, the disk seat on also have the bolt hole that matches, use bolted connection to install the sealing washer under the clamp plate on the disk seat hole.

2. The novel butterfly valve seal according to claim 1, wherein a pressure ring is laminated under the seal ring, and the pressure ring is an annular ring and is tightly fitted with the valve seat.

3. The novel butterfly valve seal of claim 2, wherein the valve seat has a groove, the shape of the groove matches the shape of the pressure ring, and the pressure ring is engaged in the groove.

4. A new butterfly valve seal according to claim 1, characterised in that the valve seat is divided into two parts, an outer tube and an inner tube, the outer tube having a length greater than the inner tube, the first end of the outer tube being aligned with the first end of the inner tube, the outer tube being formed integrally with the inner tube, the bolt holes being provided on the second end face of the inner tube.

5. The seal of a novel butterfly valve of claim 4, wherein the outer diameter of the seal ring is larger than the inner diameter of the inner tube and smaller than the outer diameter of the inner tube, the inner diameter of the seal ring is smaller than the inner diameter of the inner tube, the seal ring is placed on the second end surface of the inner tube and the seal ring below the pressure plate is fixed on the second end surface of the inner tube by bolts.