CN210118495U - Combined valve rubber - Google Patents

Abstract

The utility model provides a combined valve rubber, including rubber and skeleton, the rubber is the solid of revolution, and the cross section of rubber is clockwise in proper order for antiskid face, outer disc, dodge the conical surface, sealed conical surface, rubber seal plane, rubber installation disc, installation conical surface, reserve conical surface and reserve the plane and constitute, the rubber concreties together with the skeleton, the skeleton is the solid of revolution, and the cross sectional shape of skeleton is the L type, and the skeleton installation disc of skeleton aligns with the rubber installation disc of rubber, and the sealed plane of skeleton and the rubber of skeleton aligns, and the skeleton has transition fillet in corner position design, the utility model discloses can compensate the not enough of current valve rubber life weak point.

Description

Combined valve rubber

Technical Field

The utility model belongs to the technical field of oil gas exploitation equipment technique and specifically relates to a combined valve rubber is related to.

Background

The check valve for oil and gas production increasing operation consists of a valve body, a valve rubber and a valve seat, wherein the valve rubber is generally processed by soft materials such as polyurethane and the like, and the valve rubber is sleeved on the valve body to play a role in sealing and buffering. The valve rubber has the advantages that the working condition of the valve rubber is severe, the highest pressure can reach 140MPa, and the sand content of the working medium can reach 13%, so that the service life of the valve rubber is short, generally between 12 hours and 16 hours, the damaged part is mainly at the edge position of the boundary of the valve body, the currently adopted method is mainly to increase the disassembly and inspection frequency, find problems and replace the problems in time, and greatly reduce the working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the weak point of above-mentioned traditional valve rubber, provide a combined valve rubber, compensate current valve rubber short service life's not enough.

The purpose of the utility model is achieved through the following technical measures: the combined valve rubber comprises a rubber and a framework, wherein the rubber and the framework are fixedly connected together, and both the rubber and the framework are of a revolving body structure.

Preferably, the cross section of the rubber is sequentially provided with an anti-slip surface, an outer circular surface, an avoiding conical surface, a sealing conical surface, a rubber sealing plane, a rubber mounting circular surface, a mounting conical surface, a reserved conical surface and a reserved plane according to the clockwise direction.

Preferably, the cross-sectional shape of skeleton is the L type, and the skeleton installation disc that the skeleton set up aligns with the rubber installation disc of rubber, and the sealed plane of skeleton that the skeleton set up aligns with the rubber seal plane of rubber.

Preferably, the framework is designed with a transition fillet at the corner position.

Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that:

1. at the junction position of the rubber and the valve body, the rubber is wrapped with a circle of framework, so that the weakest edge of the rubber is protected, the erosion of fluid to the edge of the rubber is reduced, and the service life of the rubber is effectively prolonged;

2. the transition round angle is designed at the corner of the framework, so that stress concentration is effectively avoided, and the service life of the framework can be prolonged;

3. the framework and the rubber are fixedly connected into a whole and are sleeved on the valve body, and compared with the mode that the rubber is directly fixedly connected on the valve body, the valve has the advantages of convenience in disassembly, assembly and replacement.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic structural diagram of the combined valve rubber of the present invention.

Fig. 2 is a cross-sectional partially enlarged schematic view of the combined valve rubber of the present invention.

Fig. 3 is an installation schematic diagram of the combined valve rubber of the present invention.

In the figure: 1. the rubber sealing device comprises a framework, 2, rubber, 11, a framework sealing plane, 12, a transition fillet, 13, a framework mounting circular surface, 21, an anti-skidding surface, 22, an outer circular surface, 23, an avoiding conical surface, 24, a sealing conical surface, 25, a rubber sealing plane, 26, a rubber mounting circular surface, 27, a mounting conical surface, 28, a reserved conical surface, 29 and a reserved plane.

Detailed Description

Example (b): the utility model provides a combined valve rubber, includes rubber 2 and skeleton 1, rubber 2 is the solid of revolution, and rubber 2's cross section is clockwise in proper order for antiskid face 21, outer disc 22, dodge conical surface 23, sealed conical surface 24, rubber seal plane 25, rubber installation disc 26, installation conical surface 27, reservation conical surface 28 and reservation plane 29 to constitute, rubber 2 concreties together with skeleton 1, skeleton 1 is the solid of revolution, and skeleton 1's cross sectional shape is the L type, and skeleton 1's skeleton installation disc 13 aligns with rubber 2's rubber installation disc 26, and skeleton 1's skeleton seal plane 11 aligns with rubber 2's rubber seal plane 25, and skeleton 1 has transition fillet 12 in corner position design.

Before use, the valve rubber is sleeved on the valve body, and the anti-slip surface 21, the rubber mounting round surface 26, the mounting conical surface 27 and the framework mounting round surface 13 of the framework 1 of the rubber 2 are tightly attached to the valve body. When the valve seat sealing conical surface protective device is used, the sealing conical surface 24 of the rubber continuously impacts the valve seat sealing conical surface, meanwhile, fluid passes through the sealing conical surface at a high speed, the weakest edge of the rubber is protected by the rubber sealing plane 25, and the service life of the valve rubber is effectively prolonged.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (4)

1. A combined type valve rubber is characterized in that: the valve rubber comprises a rubber (2) and a framework (1), the rubber and the framework are fixedly connected together, and both the rubber and the framework are of a revolving body structure.

2. The combined valve rubber according to claim 1, wherein the cross section of the rubber (2) is sequentially provided with an anti-slip surface (21), an outer circular surface (22), an avoiding conical surface (23), a sealing conical surface (24), a rubber sealing plane (25), a rubber mounting circular surface (26), a mounting conical surface (27), a reserved conical surface (28) and a reserved plane (29) in a clockwise direction.

3. A combined valve rubber according to claim 1, wherein the cross-sectional shape of the frame (1) is L-shaped, the frame mounting circular surface (13) is aligned with the rubber mounting circular surface (26) of the rubber, and the frame sealing plane (11) is aligned with the rubber sealing plane (25) of the rubber.

4. The combination valve rubber according to claim 1, wherein the framework (1) is designed with transition fillets (12) at the corners.

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