CN202280851U

CN202280851U - Plane sealing valve

Info

Publication number: CN202280851U
Application number: CN2011203521337U
Authority: CN
Inventors: 曹永杰; 俞学锋; 李知洪; 余明华; 谢致云
Original assignee: Angel Yeast Co Ltd
Current assignee: Angel Yeast Co Ltd
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2012-06-20
Anticipated expiration: 2021-09-13

Abstract

The utility model provides a plane sealing valve, comprising a valve board body (1) and a sealing piece (2), wherein the sealing piece (2) is fixedly arranged on a sealing face of the valve board body (1). Furthermore, the sealing piece (2) is provided with a convex sealing ring (6). The central size of the convex sealing ring (6) is more than the internal size of a valve hole, and the size of the inner edge of the convex sealing ring is less than the internal size of the valve hole. With the adoption of the structure of the plane sealing valve, not only are the deposition and the scale formation of a material on the plane sealing valve overcome, but also the bad sealing caused by small shift of the sealing piece is compensated.

Description

A kind of plane sealing valve

Technical field

The utility model relates to a kind of sealed valve, relates in particular to a kind of plane sealing valve.

Background technique

The plane sealing valve is widely used in industries such as oil, chemical industry, water supply, air feed, food; Two problems usually can appear in the planar sealed valve of existing technology: the one, and the fouling of material deposition; Fouling on the sealing surface often makes the amount of deformation of sealed pressure be difficult to remedy, and the fouling on the sealing strip directly influences effective contact of sealing surface; The 2nd, under the operating mode of valve paperback, the gravity of valve plate one end causes sinking to being difficult to control fully, on the degrees of freedom of vertical direction, needs automatic compensation performance.

Therefore how the planar sealed valve to existing technology reasonably improves, and makes it when guaranteeing normal sealability, avoids the accumulation of material at sealing surface and near zone, is that those skilled in the art expect the technical problem that solves always.

Summary of the invention

It is a kind of through having adopted correct seal form and rational sealing means that the utility model provides, thereby overcome the plane sealing valve of above-mentioned defective.

To achieve these goals, the plane sealing valve of the utility model includes: valve plate body and Sealing, and said Sealing is fixed on the sealing surface of valve plate body, is used to seal valve opening; Have the protruding seal ring of a circle on the said Sealing, said raised seals circle center size is greater than the valve opening inside dimension, and less than the valve opening inside dimension, said valve opening is meant the hole that needs sealing along size for this raised seals circle interior.

Preferably, said Sealing is fixed on the sealing surface of valve plate body through bonding mode; Said Sealing also can pass through pressing plate and screw on the sealing surface of valve plate body.

Further; The described plane sealing valve of the utility model also includes hinge head; Said hinge head is arranged at the center, the back side of valve plate body; And have the pin-and-hole that is used to wear pin rod on it, said valve plate body is connected with valve rod through hinge head, pin-and-hole and pin rod, and said valve rod is used to connect driving mechanism and valve plate.

Further, the described Sealing of the utility model can adopt silicone rubber material.

Below in conjunction with said structure; Describe working principle, the using process of the said plane sealing valve of the utility model: during use, driving mechanism drives valve plate through valve rod; Sealing on the valve plate is contacted with the sealing surface of valve opening and compress, realize the sealing effect of sealed valve valve opening.

Adopted the advantage of the said Sealing of the utility model: at first; Because protruding seal ring center size is slightly larger than the valve opening inside dimension; In the seal ring along undersized in the valve opening inside dimension, such size cooperates the possibility of material deposition when having eliminated sealing state, even valve plate has slight displacement in the direction of sealing surface; Also can guarantee perfect sealing, prevent deposition; Secondly, owing to be formation of sealing component, the thickness of sealing material is bigger; Under the certain situation of sealing intensity (depending on that driving force and sealing contact surface are long-pending), can increase amount of deformation, compensate an amount of material deposition (promptly; Have under the situation of a small amount of material deposition, still can realize sealing fully); Once more, adopt the hinge Placement between valve plate and the valve rod, such sealing configuration has self compensation mechanism on the Vertical direction of valve rod, can remedy because the poor sealing that valve plate causes in the displacement of vertical direction.

So adopted the plane sealing valve of said structure both to overcome material deposition fouling above that, remedied simultaneously the poor sealing that the minor shifts of Sealing causes again.

Description of drawings

Fig. 1 is used for the plane sealing valve plate plan view of chemical field drying bed for the utility model one;

Fig. 2 is the A-A sectional view of plane sealing valve plate shown in Figure 1;

Fig. 3 is the seal configuration sketch of plane sealing valve plate shown in Figure 1.

Embodiment

In order better to understand the purpose of the utility model, characteristic and function are described in detail the structure and the function of a preferred embodiment of this practicality below in conjunction with accompanying drawing.

Fig. 1 is the diagrammatic top view that the utility model one is applied to the fluidizing drying bed plane sealing valve plate of chemical industry, and Fig. 2 is the A-A sectional view of plane sealing valve plate shown in Figure 1, and Fig. 3 is the seal configuration sketch of plane sealing valve plate shown in Figure 1.With reference to Fig. 1, shown in Figure 2, the plane sealing valve plate of present embodiment includes, and sealing valve plate body 1 is arranged at the Sealing 2 on the sealing valve plate body 1, and the hinge head 3 that is arranged at sealing center, valve plate body 1 back side, forms pin-and-hole 4 on this hinge head.In the present embodiment, sealing valve plate body 1 structure that is rectangle, this is that further, said rectangular is embodied as 230mmx140mm owing to use the valve opening of sealing valve plate to be rectangle; Sealing 2 on said sealing valve plate 1 body is consistent with sealing valve plate body shape; Be the silica gel material in this embodiment, have the protruding seal ring 6 of a circle on the said Sealing 2, and seal ring 6 center sizes that should convexity are slightly larger than said valve opening inside dimension; This raised seals circle interior along undersized in the valve opening inside dimension; With reference to shown in Figure 3, in present embodiment, the inside dimension of valve opening is 200mmx100mm; The center of seal ring 6 is of a size of 204mmx104mm, and the interior edge of seal ring 6 is of a size of 194mmx94mm; Said Sealing 2 can also can be fixed on the valve plate body 1 through pressing plate 8 and screw 9 through adhesive bond on valve plate body 1, and in present embodiment, Sealing 2 is fixed on the valve plate body 1 through pressing plate 8 and screw 9; The said hinge head 3 that is arranged at sealing center, valve plate body 1 back side is the metal protuberance thing with pin-and-hole 4 of a pair of convexity; It is fixed on the sealing valve plate body 1 through welding or other modes; Be used for linking to each other with valve rod, said valve plate body 1 is connected in valve rod by hinge head 3 and pin rod, and said pin rod is arranged in the pin-and-hole 4 of hinge head 3; Said valve rod (not shown) is used to connect driving mechanism and valve plate; In present embodiment, said driving structure is a cylinder, but also may be embodied as electromagnetic mechanism, motor drive mechanism, spring mechanism, man-operated mechanism etc.

Above-mentioned only is in one of them of the utility model preferably implemented; In actual conditions; According to condition of different, the utility model can also be embodied as other modes, and for example valve plate body 1 can difference according to circumstances be embodied as difformity; As circular, oval, square etc., the shape of corresponding Sealing is the difference along with the difference of valve plate shape also; The material of Sealing also may be embodied as other material with identical function; The fixing means of fixation that also is not limited to pin rod of sealing valve plate 1 and valve rod.

The above only is a kind of mode of execution of the utility model, should be pointed out that for those skilled in the relevant art, and under the prerequisite that does not break away from the principle of the invention, trickle modification and the improvement made also should be regarded as belonging to the protection domain of the utility model.

Claims

1. a plane sealing valve is characterized in that it includes, valve plate body (1) and Sealing (2), and said Sealing (2) is fixed on the sealing surface of valve plate body (1); Have the protruding seal ring (6) of a circle on the said Sealing (2), said raised seals circle (6) center size is greater than said valve opening inside dimension, this raised seals circle interior along size less than the valve opening inside dimension.

2. plane sealing valve as claimed in claim 1 is characterized in that, said Sealing (2) is fixed on the sealing surface of valve plate body (1) through bonding mode.

3. plane sealing valve as claimed in claim 1 is characterized in that, also includes pressing plate (8) and screw (9), and said Sealing is fixed on the sealing surface of valve plate body (1) through pressing plate (8) and screw (9).

4. plane sealing valve as claimed in claim 1; It is characterized in that; Also include hinge head (3); Said hinge head (3) is arranged at the center, the back side of valve plate body (1), and has the pin-and-hole (4) that is used to wear pin rod on it, and said valve plate body (1) is connected with valve rod through hinge head (3), pin-and-hole (4) and pin rod.

5. plane sealing valve as claimed in claim 1; It is characterized in that; Said valve plate body (1) is a rectangular; Said Sealing (2) is consistent with sealing valve plate body shape, and the center of said Sealing (2) raising seal ring (6) is of a size of 204mmx104mm, and the interior edge of this raised seals circle (6) is of a size of 194mmx94mm.