CN211449740U

CN211449740U - Prevent accumulational ball valve seating structure of medium

Info

Publication number: CN211449740U
Application number: CN201921494078.8U
Authority: CN
Inventors: 金成波; 刘聪攀; 梁爱超; 张海龙
Original assignee: Tianjin Sianjia Flow Control Systems Co ltd
Current assignee: Tianjin Sianjia Flow Control Systems Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-09-08
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a ball valve seat structure for preventing medium accumulation, which belongs to the technical field of ball valves and comprises a valve seat, a ball body and a valve body, wherein the inner side of the valve seat is connected with the ball body, the center of the ball body is provided with a through hole, one side of the valve seat, which is far away from the ball body, is connected with the valve body, the inner surface of the valve body is provided with a first step and a second step, and a medium space is arranged between the first step of the valve body and the valve seat, the utility model provides a ball valve seat structure for preventing medium accumulation, which can prevent the medium from invading into the valve seat assembly to a certain extent through a valve seat assembly which is provided with a valve seat, an ash unloading disc, a corrugated pipe, a pressure ring and a sealing ring, and through the arrangement of the corrugated pipe, the space of the corrugated pipe body can store the invaded medium and discharge the medium, the problem of medium get into between disk seat and the valve body, and then damage the disk seat and cause the unable use of valve is solved.

Description

Prevent accumulational ball valve seating structure of medium

Technical Field

The utility model relates to a ball valve technical field especially relates to a prevent accumulational ball valve disk seat structure of medium.

Background

Ball valve, the open-close piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves.

1. The wear-resistant hard sealing ball valve in the prior art has the working condition that high-pressure gas is used for conveying pipelines of granular media such as solid coal powder, coal water slurry, silicon powder and the like with certain hardness, so that the hard particles flow in high-speed fluid and impact and scour a valve component, and the valve seat is easily damaged too early to use; and some tiny powder in the medium can invade the inside of disk seat subassembly, piles up in the valve body intracavity, makes the spring inefficacy, causes the unable activity of disk seat, and then makes whole valve leak or the valve can not open and shut and use, and solid coal dust, coal water slurry, silica flour etc. medium very easily appear deposit and adhesion in spheroid and disk seat surface in addition, accumulates in the day and the month, not only influences the sealed effect of valve, serious still directly influences the switch action of valve.

2. The spheroid of prior art's wear-resisting hard seal ball valve is when using, is pushed by the driven power of valve rod for mutual friction between spheroid and the disk seat, and spheroidal hole during operation receives the medium and strikes, and the easy frostbite of time overlength damages spheroidal surface and through-hole and influences sealed effect, for this reason, we provide a ball valve seat structure that prevents the medium and pile up.

Disclosure of Invention

The utility model provides a prevent accumulational ball valve seat structure of medium, it is through being equipped with the disk seat, unload the ash tray, the bellows, clamping ring and sealing ring complex valve seat subassembly, can prevent the medium to a certain extent to invade the inside of valve seat subassembly through eight claws shape unload the ash tray, and through setting up the bellows, the space of bellows body can save the medium of invasion, and discharge the medium from the valve body chamber through the space on unloading the ash tray, solved the medium and entered between valve seat and the valve body, and then damage the valve seat and cause the problem that the valve can't be used, also solved simultaneously that grey class medium piles up on the valve seat, make the spring inefficacy, the valve seat blocks up, and then make the whole valve leak or the problem that the valve can't be opened and closed, it is through being equipped with tungsten carbide layer and degree chromium layer on spheroid surface and through-hole, it has tungsten carbide layer reinforcing, the chromium coating is sprayed and welded in the ball through hole to increase the thickness and the strength of the ball through hole, so that the problem of friction damage of the ball in the valve seat is solved, and the problem of impact damage of the ball through hole is also solved.

The utility model provides a specific technical scheme as follows:

the utility model provides a ball valve seat structure for preventing medium accumulation, which comprises a valve seat, a ball body and a valve body, wherein the ball body is connected to the inner side of the valve seat, a through hole is arranged at the center of the ball body, the valve body is connected to one side of the valve seat, which is far away from the ball body, a first step and a second step are arranged on the inner surface of the valve body, a medium space is arranged between the first step of the valve body and the valve seat, a ball right side space is arranged on one side of the ball body and one side of the valve body, the medium space is communicated and connected with the ball right side space, the inner surface of the right end of the valve seat is contacted with the surface of the ball body, the peripheral structure of the valve seat is milled into a boss, an ash discharging disc, a corrugated pipe, a pressure ring and a sealing ring are sequentially pressed and sleeved outside the step of the, the other end of bellows and the tight laminating in clamping ring top, and the laminating of the internal surface of bellows one side top and valve body, the periphery of clamping ring and sealing ring all laminates with the internal surface of the second step of valve body.

Optionally, the corrugated pipe has a concave-convex metal corrugated pipe structure.

Optionally, the outer surface structure of the sealing ring is trapezoidal.

Optionally, the outer wall of the sphere is cold sprayed with a tungsten carbide layer.

Optionally, a chromium coating is spray-welded on the inner wall of the through hole of the sphere.

The utility model has the advantages as follows:

1. the utility model discloses a be equipped with the disk seat, unload the ash pan, the bellows, clamping ring and sealing ring complex disk seat subassembly, unload the ash pan through eight claws shape and link up in one side of disk seat, prevent inside the medium invasion disk seat subassembly to a certain extent, and through setting up the bellows, the medium that can save the invasion is blocked to the obstruction in the space of bellows body, and discharge the medium through the inner chamber of unloading the space on the ash pan from the valve body, it gets into between disk seat and the valve body to have solved the medium, and then damage the problem that the disk seat made the valve unable use, also solved the ash class medium simultaneously and piled up on the disk seat, make the spring inefficacy, the disk seat card is stifled, and then make whole valve leak or the problem that the valve can.

2. The utility model discloses a be equipped with tungsten carbide layer and degree chromium layer on spheroid surface and through-hole, have tungsten carbide layer reinforcing spheroid apparent intensity at spheroidal outer wall cold spraying, it has thickness and intensity that chromium coating increases the spheroid through-hole to spout the welding in the spheroid through-hole, has solved the problem that the spheroid rubs the damage in the disk seat, has also solved the impact damage problem of spheroid through-hole.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is the utility model discloses a prevent accumulational ball valve seat structure's of medium overall structure sketch map.

Fig. 2 is a schematic diagram of a ball structure of a ball valve seat structure for preventing accumulation of media according to an embodiment of the present invention.

In the figure: 1. a valve seat; 101. a boss; 2. unloading the ash tray; 3. a bellows; 4. pressing a ring; 5. a seal ring; 6. a sphere; 601. a tungsten carbide layer; 602. a chromium plating layer; 7. a valve body; 701. a first step; 702. a second step; 8. a medium space; 9. the space on the right side of the sphere.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The structure of the ball valve seat for preventing media accumulation according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1 and 2, an embodiment of the utility model provides a prevent accumulational ball valve seating structure of medium, including disk seat 1, spheroid 6 and valve body 7, disk seat 1's inboard has been linked up spheroid 6, and the center of spheroid 6 has seted up the through-hole, disk seat 1 deviates from one side of spheroid 6 and has linked up valve body 7, first step 701 and second step 702 have been seted up to valve body 7's internal surface, and has seted up medium space 8 between first step 701 of valve body 7 and the disk seat 1, spheroid right side space 9 has been seted up to one side of spheroid 6 and valve body 7, medium space 8 and spheroid right side space 9 intercommunication are connected, disk seat 1 right-hand member internal surface and spheroid 6 surface contact, disk seat 1's peripheral structure mills to boss 101, the step outside of boss 101 has been compressed tightly in proper order by spheroid 6 to valve body 7 direction to cup jointed and has unloaded grey dish 2, Bellows 3, clamping ring 4 and sealing ring 5, bellows 3 is with unloading grey dish 2 and be the same axial gomphosis, the one end of bellows 3 with unload grey dish 2 and push up tightly the laminating, the other end and the 4 top of clamping ring of bellows 3 push up tightly the laminating, and 3 one side tops of bellows and valve body 7's the internal surface laminating, the periphery of clamping ring 4 and sealing ring 5 all with the internal surface laminating of valve body 7's second step 702.

Illustratively, an eight-claw-shaped ash discharging disc 2 is connected to one side of a valve seat 1, so that media are prevented from invading into the valve seat 1 assembly to a certain extent, and the invading media can be stored by blocking the space of the corrugated pipe 3 through the arrangement of the corrugated pipe 3, and the media are discharged from the inner cavity of a valve body 7 through a gap on the ash discharging disc 2, so that the problem that the media enter between the valve seat and the valve body, and further the valve seat is damaged, so that the valve cannot be used is solved.

Referring to fig. 1, the bellows 3 has a corrugated metal structure.

As an example, the corrugated tube 3 having a concave-convex shape has a high rigidity.

Referring to fig. 1, the outer surface of the sealing ring 5 is trapezoidal.

Illustratively, the trapezoidal configuration of the sealing ring 5 facilitates engagement with the second step 702 of the valve body 7.

Referring to fig. 1 and 2, the outer wall of the sphere 6 is cold sprayed with a tungsten carbide layer 601.

Illustratively, the tungsten carbide layer 601 on the outer wall of the ball 6 enhances the strength of the outer wall of the ball 6 and prevents the ball 6 from being damaged by friction with the valve seat 1.

Referring to fig. 2, the inner wall of the through hole of the ball 6 is spray welded with a chromium plating layer 602.

In the illustrated example, the through-holes of the balls 6 are sprayed with the chromium plating layer 602 to improve the strength and the impact resistance.

When the valve seat is used, the ball body 6 in the valve seat 1 rotates, the ball body 6 and the valve seat 1 rub with each other, the tungsten carbide layer 601 on the outer wall of the ball body 6 enhances the strength of the outer wall of the ball body 6 to prevent the ball body 6 from rubbing and damaging the valve seat 1, then the through hole in the ball body 6 is washed by the transmitted medium, the chromium coating 602 sprayed and welded on the through hole of the ball body 6 improves the strength and impact resistance, the medium space 8 existing below the first step 701 of the valve body 7 is communicated with the right space 9 of the ball body, so that the scattered medium is led into the surface of the corrugated pipe 3 from the communicated space after being initially intercepted by the ash discharging disc 2, then the space of the corrugated pipe 3 body can store the invaded medium and discharge the medium from the inner cavity of the valve body 7 through the gap on the ash discharging disc 2, the boss 101 on one side of the valve seat 1 is tightly attached to the ash discharging disc 2, the pressure ring 4 on the outer side of the valve seat 1 compresses the, the joint of the valve seat 1 and the valve body 7 is sealed.

It should be noted that the utility model relates to a prevent medium accumulational ball valve seating structure, including disk seat 1, boss 101, unload grey dish 2, bellows 3, clamping ring 4, sealing ring 5, spheroid 6, tungsten carbide layer 601, chromium coating 602, valve body 7, first step 701, second step 702, medium space 8, spheroid right side space 9, the part is the general standard component or the part that technical staff in the field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a prevent accumulational ball valve seating structure of medium, includes disk seat (1), spheroid (6) and valve body (7), the inboard of disk seat (1) links up spheroid (6), and the center of spheroid (6) has seted up the through-hole, one side that disk seat (1) deviates from spheroid (6) links up valve body (7), its characterized in that: the inner surface of the valve body (7) is provided with a first step (701) and a second step (702), a medium space (8) is formed between the first step (701) of the valve body (7) and the valve seat (1), one side of the ball body (6) and the valve body (7) is provided with a ball right side space (9), the medium space (8) is communicated with the ball right side space (9), the inner surface of the right end of the valve seat (1) is in surface contact with the ball body (6), the peripheral structure of the valve seat (1) is milled into a boss (101), the outer side of the step of the boss (101) is sequentially pressed and sleeved with the ash unloading disc (2), the corrugated pipe (3), the pressure ring (4) and the sealing ring (5) from the ball body (6) to the valve body (7), the corrugated pipe (3) and the ash unloading disc (2) are coaxially embedded, one end of the corrugated pipe (3) is tightly abutted to the ash unloading disc (2, the other end of bellows (3) and clamping ring (4) top are laminated tightly, and the interior surface laminating of bellows (3) one side top and valve body (7), the periphery of clamping ring (4) and sealing ring (5) all with the interior surface laminating of second step (702) of valve body (7).

2. A media accumulation prevention ball valve seat structure as claimed in claim 1, wherein: the corrugated pipe (3) is in a concave-convex metal corrugated pipe structure.

3. A media accumulation prevention ball valve seat structure as claimed in claim 1, wherein: the outer surface structure of the sealing ring (5) is trapezoidal.

4. A media accumulation prevention ball valve seat structure as claimed in claim 1, wherein: the outer wall of the sphere (6) is cold-sprayed with a tungsten carbide layer (601).

5. A media accumulation prevention ball valve seat structure as claimed in claim 1, wherein: and a chromium coating (602) is welded on the inner wall of the through hole of the ball body (6) in a spraying manner.