CN211951506U - Fire prevention fixed ball disk seat - Google Patents

Abstract

The utility model discloses a fire prevention fixed ball disk seat, include: opening and closing the ball body; the valve seat is arranged on the opening and closing ball body; the valve seat is provided with a sealing groove, one side wall of the sealing groove is bent towards the inside of the groove to form a bent part, and an expansion groove is formed in the side wall of the sealing groove; be equipped with sealing member, elastic seal circle and spacing ring in the seal groove, the sealing member is equipped with the bayonet socket, and the spacing ring sets up in the seal groove tank bottom, the bayonet socket and the spacing ring cooperation of sealing member, and elastic seal circle sets up between spacing ring and the sealing member. The utility model discloses a disk seat is heated the inflation when disk seat under the condition of being in the high temperature, and the expansion tank can cushion the deformation that the inflation produced, makes the disk seat structure keep original sealing performance.

Description

Fire prevention fixed ball disk seat

Technical Field

The utility model belongs to the technical field of the valve, specifically speaking relates to a fire prevention fixing ball disk seat.

Background

The ball valve is mainly used in the fields of petroleum, chemical industry and the like, has high requirements on sealing performance, and provides a new sealing technical scheme in order to improve the stable sealing performance of the ball valve in a high-temperature environment.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the technical problem that a fire prevention solid fixed ball disk seat is provided, solve among the prior art and improve the problem that the ball valve has stable sealing performance under high temperature environment.

In order to solve the technical problem, the utility model discloses a fire prevention fixing ball disk seat, include: opening and closing the ball body; the valve seat is arranged on the opening and closing ball body; the valve seat is provided with a sealing groove, one side wall of the sealing groove is bent towards the inside of the groove to form a bent part, and an expansion groove is formed in the side wall of the sealing groove; be equipped with sealing member, elastic seal circle and spacing ring in the seal groove, the sealing member is equipped with the bayonet socket, and the spacing ring sets up in the seal groove tank bottom, the bayonet socket and the spacing ring cooperation of sealing member, and elastic seal circle sets up between spacing ring and the sealing member.

Further, three groups of expansion grooves are arranged at the bent part.

Further, the cross-sectional shape of the expansion groove is a circular arc.

Compared with the prior art, the application can obtain the following technical effects:

the utility model discloses a disk seat has set up flexion and expansion tank, and the flexion supports on the sealing member, and the displacement of spacing ring, elastic seal circle and flexion restriction sealing member is heated the inflation when the disk seat under the condition that the ball valve is in the high temperature, and the expansion tank can cushion the deformation that the inflation produced, makes the disk seat structure keep original sealing performance.

Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a fire resistant retainer ball valve seat according to an embodiment of the present invention;

fig. 2 is a partial schematic view of fig. 1.

Reference symbols of the drawings

The ball valve comprises an opening-closing ball body 1, a valve seat 2, a sealing groove 3, a bending portion 4, an expansion groove 5, a sealing piece 6, an elastic sealing ring 7, a limiting ring 8 and a bayonet 9.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a fire-proof fixed ball valve seat according to an embodiment of the present invention; fig. 2 is a partial schematic view of fig. 1. A fire resistant retainer ball valve seat comprising: opening and closing the ball body 1; a valve seat 2 arranged on the opening and closing ball 1; the valve seat 2 is provided with a sealing groove 3, one side wall of the sealing groove 3 is bent towards the inside of the groove to form a bent part 4, and an expansion groove 5 is arranged on the side wall; be equipped with sealing member 6, elastic seal 7 and spacing ring 8 in the seal groove 3, sealing member 6 is equipped with bayonet 9, and spacing ring 8 sets up in the 3 tank bottoms of seal groove, and bayonet 9 and the spacing ring 8 cooperation of sealing member 6, elastic seal 7 set up between spacing ring 8 and the sealing member 6.

Three groups of expansion grooves 5 are arranged at the bending part 4; the cross-sectional shape of the expansion groove 5 is circular arc. The utility model discloses a disk seat 2 has set up flexion 4 and expansion tank 5, flexion 4 supports on sealing member 6, spacing ring 8, elastic seal circle 7 and the displacement of flexion 4 restriction sealing member 6, disk seat 2 thermal expansion under the condition that the ball valve is in the high temperature, internals sealing member 6, spacing ring 8 and elastic seal circle 7 bulging deformation extrude each other, expansion tank 5 can cushion the deformation that the inflation produced with flexion 4, make disk seat 2 structure keep original sealing performance, thereby the deformation of avoiding the inflation to produce causes the sealed structure of disk seat 2 to extrude the aversion each other and reduce sealing performance.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (3)

1. A fire resistant retainer ball valve seat comprising: opening and closing the ball body;

the valve seat is arranged on the opening and closing ball body;

the valve seat is characterized in that the valve seat is provided with a sealing groove, one side wall of the sealing groove is bent towards the inside of the groove to form a bent part, and an expansion groove is formed in the side wall; be equipped with sealing member, elastic seal circle and spacing ring in the seal groove, the sealing member is equipped with the bayonet socket, the spacing ring set up in the seal groove tank bottom, the bayonet socket of sealing member with the spacing ring cooperation, elastic seal circle sets up the spacing ring with between the sealing member.

2. A fire resistant retainer ball seat as in claim 1 wherein three sets of said expansion slots are provided at said bight portion.

3. A fire resistant retainer ball seat as defined in claim 1 in which said expansion slot is arcuate in cross-section.

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