CN221170837U - High-pressure ball valve - Google Patents

Abstract

The utility model discloses a sealing structure of a high-pressure ball valve, which comprises a valve body, a wrench and a pressure relief device, wherein the valve body is rectangular, a fixed seat is arranged on the upper side of the valve body, the wrench is arranged on the upper side of the fixed seat, the size of the wrench is matched with that of the fixed seat, a sealing cavity is arranged on the lower side of the fixed seat, a through hole is formed in the joint of the valve body and the sealing cavity, the through hole is rectangular, the pressure relief device is arranged in the sealing cavity, and the pressure relief device comprises a pressure relief turntable, a rotating shaft, a supporting block, a clamping block and a ball valve assembly; the fixing seat is hexagonal, a reinforcing plate is arranged at the joint of the fixing seat and the valve body, and the size of the reinforcing plate is larger than that of the fixing seat. The utility model has high sealing performance and certain pressure release capacity, so that the valve is relatively simple and convenient to close.

Description

High-pressure ball valve

Technical Field

The utility model relates to the technical field of high-pressure ball valves, in particular to a high-pressure ball valve.

Background

Ball valves are commonly arranged on hydraulic pipelines or fluid material conveying pipelines in the industries of metallurgy, chemical industry, petroleum, food, medicine and the like. Ball valves are commonly used because of their rapid opening and closing and good sealing properties.

The basic structure of the ball valve is as follows: a ball body is arranged in the inner cavity of the valve body, and a through hole in the middle of the ball body is communicated with an inlet and an outlet at two ends of the valve body, namely the through hole forms a section of a pipeline; when the valve is closed, the upper valve rod drives the sphere to rotate, the central axis of the through hole on the sphere is perpendicular to the central axis of the pipeline, and the pipeline is blocked by using smooth spherical surfaces on two sides of the sphere; a valve seat assembly sealing structure is arranged between the valve body and the ball body, and comprises a sealing valve seat, a sealing ring assembly arranged between the valve body and the valve seat, and the sealing performance of the valve body is ensured by hard sealing of the contact surface between the valve seat and the ball body and soft sealing between the valve seat and the valve body.

In the prior art, after the pressure rises, the conventional ball valve is easy to deform and bend due to the compression of high-pressure load with several tens of megapascals at two ends, so that the sealing ring and the spherical surface are almost in a cohesive state, the cohesive force is quite large, and in emergency, the valve is difficult to open, and even if a long pipe is sleeved on a handle to increase the torque of the valve, the valve is quite hard, so that the high-pressure ball valve is required to have certain pressure release capacity, and the opening and closing of the valve are simpler and more convenient.

Disclosure of utility model

The utility model aims to provide a high-pressure ball valve so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-pressure ball valve, includes valve body, spanner and pressure relief device, the valve body is the rectangle, the upside of valve body is equipped with the fixing base, the upside of fixing base is equipped with the spanner, the size of spanner and the size looks adaptation of fixing base, the downside of fixing base is equipped with sealed chamber, the junction of valve body and sealed chamber is equipped with the through-hole, the through-hole is the rectangle, be equipped with pressure relief device in the sealed chamber, pressure relief device includes pressure relief carousel, pivot, supporting shoe, fixture block and ball valve subassembly; the fixed seat is hexagonal, a reinforcing plate is arranged at the joint of the fixed seat and the valve body, and the size of the reinforcing plate is larger than that of the fixed seat; one side of the valve body is provided with a pressure relief rotary table, one end of the pressure relief rotary table is fixedly connected with a rotary shaft, the rotary shaft stretches into the valve body, the rotary shaft is also provided with a supporting block, the upper side of the supporting block is provided with a clamping block, the clamping block is a rectangular block, and a ball valve assembly is arranged at a position on the supporting block, which is symmetrical to the clamping block; the size of the clamping block is smaller than that of the ball valve assembly, the ball valve assembly is semicircular, a plurality of mounting seats are arranged at the joint of the rotating shaft and the valve body, and the mounting seats are symmetrically arranged relative to the valve body; the lower end of the sealing cavity is semicircular, and the size of the sealing cavity is matched with the size of the ball valve assembly.

Preferably, the size of the reinforcing plate is larger than that of the fixing seat, but smaller than that of the valve body, so that the fixing seat is fixed at a sufficient position, and the overall stability is greatly improved.

Preferably, the size of the clamping block is smaller than that of the ball valve assembly, the sealing effect can be achieved by the ball valve assembly in the sealing cavity, the pressure release effect can be achieved by the clamping block, and the wrench is convenient to open the valve.

Compared with the prior art, the utility model has the beneficial effects that: through fixing base and gusset plate's settlement for be connected between valve body and the spanner more firm, through fixture block and ball valve assembly's special settlement on the supporting shoe, when making whole sealed intracavity along with pressure rise, have certain pressure release mode, the valve of assurance when emergency can be timely open.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

fig. 2 is a schematic structural diagram of a pressure relief device according to the present utility model.

In the figure: 1. a valve body; 2. a wrench; 3. a pressure relief device; 301. a pressure relief turntable; 302. a rotating shaft; 303. a support block; 304. a clamping block; 305. a ball valve assembly; 4. a fixing seat; 5. sealing the cavity; 6. a reinforcing plate; 7. and (5) a mounting seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a high-pressure ball valve, includes valve body 1, spanner 2 and pressure relief device 3, valve body 1 is the rectangle, the upside of valve body 1 is equipped with fixing base 4, the upside of fixing base 4 is equipped with spanner 2, the size of spanner 2 and the size looks adaptation of fixing base 4, the downside of fixing base 4 is equipped with sealed chamber 5, the junction of valve body 1 and sealed chamber 5 is equipped with the through-hole, the through-hole is the rectangle, be equipped with pressure relief device 3 in the sealed chamber 5, pressure relief device 3 includes pressure relief carousel 301, pivot 302, supporting shoe 303, fixture block 304 and ball valve assembly 305; the fixed seat 4 is hexagonal, a reinforcing plate 6 is arranged at the joint of the fixed seat 4 and the valve body 1, and the size of the reinforcing plate 6 is larger than that of the fixed seat 4; a pressure relief rotary table 301 is arranged on one side of the valve body 1, one end of the pressure relief rotary table 301 is fixedly connected with a rotary shaft 302, the rotary shaft 302 extends into the valve body 1, a supporting block 303 is further arranged on the rotary shaft 302, a clamping block 304 is arranged on the upper side of the supporting block 303, the clamping block 304 is a rectangular block, and a ball valve assembly 305 is arranged at a position on the supporting block 303 symmetrical to the clamping block 304; the size of the clamping block 304 is smaller than that of the ball valve assembly 305, the ball valve assembly 305 is semicircular, a plurality of mounting seats 7 are arranged at the joint of the rotating shaft 302 and the valve body 1, and the mounting seats 7 are symmetrically arranged relative to the valve body 1; the lower end of the seal cavity 5 is semicircular, and the size of the seal cavity 5 is matched with the size of the ball valve assembly 305.

In this embodiment, the size of the reinforcing plate 6 is larger than the size of the fixing seat 4, but smaller than the size of the valve body 1, so that the reinforcing plate 6 is ensured to have enough positions to fix the fixing seat 4, and the overall stability is greatly improved.

In this embodiment, the size of the clamping block 304 is smaller than the size of the ball valve assembly 305, so that the ball valve assembly 305 can achieve a sealing effect in the sealing cavity 5, and the clamping block 304 can achieve a pressure relief effect, so that the wrench 2 is convenient for opening the valve.

Working principle: after the condition that staff checking valve body 1 does not have the weeping, rotate pressure release carousel 301 for ball valve subassembly 305 and seal chamber 5 are accomplished sealedly just, then through spanner 2, realize the effect of totally sealing with whole valve body 1, along with the rising of pressure, if need the opening of valve, only need rotate pressure release carousel 301, make fixture block 304 arrange in seal chamber 5, then because seal chamber 5's size is greater than fixture block 304's size, make and leave the space between seal chamber 5 and the fixture block 304, thereby reach the effect of pressure release, open the valve at this moment just becomes simple swiftly.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a high-pressure ball valve, its characterized in that, including valve body (1), spanner (2) and pressure relief device (3), valve body (1) is the rectangle, the upside of valve body (1) is equipped with fixing base (4), the upside of fixing base (4) is equipped with spanner (2), the size of spanner (2) and the size looks adaptation of fixing base (4), the downside of fixing base (4) is equipped with sealed chamber (5), the junction of valve body (1) and sealed chamber (5) is equipped with the through-hole, the through-hole is the rectangle, be equipped with pressure relief device (3) in sealed chamber (5), pressure relief device (3) are including pressure release carousel (301), pivot (302), supporting shoe (303), fixture block (304) and ball valve subassembly (305).

2. A high pressure ball valve as defined in claim 1, wherein: the fixed seat (4) is hexagonal, a reinforcing plate (6) is arranged at the joint of the fixed seat (4) and the valve body (1), and the size of the reinforcing plate (6) is larger than that of the fixed seat (4).

3. A high pressure ball valve as defined in claim 1, wherein: one side of valve body (1) is equipped with pressure release carousel (301), the one end fixedly connected with pivot (302) of pressure release carousel (301), in pivot (302) stretched into valve body (1), and still be equipped with supporting shoe (303) on pivot (302), the upside of supporting shoe (303) is equipped with fixture block (304), fixture block (304) are the rectangle piece, the position of symmetry with fixture block (304) on supporting shoe (303) is equipped with ball valve assembly (305).

4. A high pressure ball valve as defined in claim 1, wherein: the size of fixture block (304) is less than the size of ball valve subassembly (305), ball valve subassembly (305) are semi-circular, the junction of pivot (302) and valve body (1) is equipped with a plurality of mount pad (7), and a plurality of mount pad (7) are the symmetry setting relative valve body (1).

5. A high pressure ball valve as defined in claim 1, wherein: the lower end of the sealing cavity (5) is semicircular, and the size of the sealing cavity (5) is matched with the size of the ball valve assembly (305).