CN115405719A

CN115405719A - Ball valve

Info

Publication number: CN115405719A
Application number: CN202211217829.8A
Authority: CN
Inventors: 陈震
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-11-29

Abstract

The invention belongs to the field of ball valves, and particularly relates to a ball valve. The invention provides a ball valve which has the beneficial effect that the ball valve can be quickly replaced in a high-pressure turbid liquid medium. The utility model provides a ball valve, including first fixed plate, the rigid coupling has the second fixed plate on the first fixed plate, first sliding plate and the equal sliding connection of second sliding plate are between first fixed plate and second fixed plate, first sliding plate passes through hinged joint on the second sliding plate, first sliding plate, the second sliding plate, be provided with the ball valve baffle between first fixed plate and the second fixed plate, first sliding plate passes second fixed plate rigid coupling and has the valve body, valve body internally mounted has the V type spheroid, the V type spheroid passes the valve body rigid coupling and has the valve rod, the rigid coupling has the spanner on the valve rod. The first sliding plate is provided with a first conical seal, and the first conical seal is provided with a first sealing plate and a first sealing groove.

Description

Ball valve

Technical Field

The invention belongs to the field of ball valves, and particularly relates to a ball valve.

Background

The ball valve is one of valves widely used, has simple structure, reliable sealing and convenient maintenance, and the sealing surface and the ball body are always in a closed state and are not easily eroded by a medium, thereby being widely applied to the fields of petroleum, chemical industry, metallurgy, light spinning, food, atomic energy, aviation and the like. The ball valve has 90 deg rotation action, and the cock body is one ball with circular through hole or passage through its axis and is used mainly in pipeline to cut off, distribute and change the flow direction of medium and may be closed tightly only through 90 deg rotation and small rotation moment. The V-shaped adjusting ball valve has a shearing effect on the valve seat due to the fact that the ball core is provided with the V-shaped structure. Therefore, the device is suitable for controlling relevant process parameters in suspension medium containing fibers or tiny solid particles in industrial enterprises of paper making, chemical engineering, metallurgy and the like, and is particularly suitable for automatically adjusting suspension particle fluid and thick and turbid slurry fluid medium of paper pulp, white water, black liquor, white liquor and the like in the pulp making and paper making production processes. However, since the V-shaped adjusting ball valve is mostly used in high-pressure suspension medium, when the valve core is abnormal, emptying the pipeline for replacing or repairing the ball valve is very difficult, and the efficiency is low.

Disclosure of Invention

The ball valve provided by the invention can quickly finish the replacement work of the ball valve in a high-pressure turbid liquid medium.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a ball valve, including first fixed plate, the rigid coupling has the second fixed plate on the first fixed plate, sealed sliding connection has first sliding plate and second sliding plate between first fixed plate and the second fixed plate, first sliding plate passes through hinged joint on the second sliding plate, first sliding plate, the second sliding plate, be provided with the ball valve baffle between first fixed plate and the second fixed plate, first sliding plate passes second fixed plate rigid coupling and has the valve body, valve body internally mounted has the V type spheroid, the V type spheroid passes the valve body rigid coupling and has the valve rod, the rigid coupling has the spanner on the valve rod.

The ball valve is characterized in that a first conical seal is arranged on the first sliding plate, a first sealing plate and a first sealing groove are arranged on the first conical seal, a second conical seal is arranged on the second sliding plate, a second sealing plate and a second sealing groove are arranged on the second conical seal, the first sealing plate is inserted into the second sealing groove, the second sealing plate is inserted into the first sealing groove, the first conical seal, the first sealing plate, the second conical seal and the second sealing plate form a conical discharge port, the ball valve baffle is arranged inside the conical discharge port, a through hole is formed in the first sliding plate, and the through hole is formed in the middle of the first sliding plate.

The second fixing plate is provided with a conical through hole, the size of the bottom surface of the conical through hole is the same as that of the through hole, and the conical degree of the conical through hole is the same as that of the conical discharge hole.

The edge of the ball valve baffle is provided with a conical surface, and the conical surface has the same conical degree as the conical discharge hole.

Smooth wear-resistant coatings are arranged on the conical surfaces and the conical surfaces of the conical discharge hole and the conical through hole.

And two hinge grooves are formed in the second sliding plate, one end of each hinge is fixedly connected to the inner side of each hinge groove, and the other end of each hinge is fixedly connected to the first sliding plate.

The first fixed plate is provided with a first chute, the first sliding plate is provided with a first bedplate, the second sliding plate is provided with a second bedplate, and the first bedplate and the second bedplate are connected in the first chute in a sealing and sliding manner.

The second fixed plate is provided with a second sliding groove, the first sliding plate and the second sliding plate are connected inside the second sliding groove in a sealing and sliding mode, the second fixed plate is provided with two guide grooves, the first sliding plate is provided with two first sliding blocks, and the two first sliding blocks penetrate through the corresponding guide grooves and are fixedly connected with the valve body.

The valve body is provided with a plurality of sliding holes and a plurality of fixing holes, the sliding holes are arranged at positions corresponding to the two first sliding blocks, screws penetrate through the sliding holes to be connected with the first sliding blocks, the fixing holes are arranged on the outer side of the sliding holes, a plurality of threaded holes corresponding to the fixing holes are formed in the second fixing plate, a sealing groove is formed in the valve body, and the sealing groove is arranged at one end, connected with the second fixing plate, of the valve body.

One end of the valve body far away from the second fixing plate is provided with a standard thread part, and the first fixing plate is fixedly connected with and communicated with a water pipe provided with the standard thread part.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is an overall structural view of a ball valve;

FIG. 2 is an overall structure view of the ball valve during moving and disassembling;

FIG. 3 is a schematic view showing an internal structure of a ball valve;

FIG. 4 is a schematic structural view illustrating a first movable plate and a second movable plate separated from each other;

FIG. 5 is a schematic structural view of the first moving plate and the second moving plate when they are folded together;

FIG. 6 is a schematic structural view of a conical discharge port;

FIG. 7 is a schematic structural view of the first moving plate;

FIG. 8 is a schematic structural view of a second moving plate;

FIG. 9 is a schematic view of the position of the conical surface on the baffle plate of the ball valve;

FIG. 10 is a schematic cross-sectional view of a same taper cone inside a ball valve;

fig. 11 is a schematic structural view of the first fixing plate;

fig. 12 is a schematic structural view of a second fixing plate;

FIG. 13 is a schematic view of the first moving plate in another direction;

FIG. 14 is a schematic view of the valve body;

fig. 15 is a schematic view of the position of a standard threaded portion.

Detailed Description

As shown in fig. 1 to 5:

the ball valve comprises a first fixing plate 100, wherein a second fixing plate 110 is connected to the first fixing plate 110 through screws, a first sliding plate 120 and a second sliding plate 130 are connected between the first fixing plate 100 and the second fixing plate 110 in a sealing and sliding manner, the first sliding plate 120 is connected to the second sliding plate 130 through a hinge 135, a ball valve baffle plate 180 is arranged among the first sliding plate 120, the second sliding plate 130, the first fixing plate 100 and the second fixing plate 110, the first sliding plate 120 penetrates through the second fixing plate 110 and is connected with a valve body 140 through screws, a V-shaped ball 150 is installed in the valve body 140, the V-shaped ball 150 penetrates through the valve body 140 and is welded with a valve rod 160, and a wrench 170 is connected to the valve rod 160 through threads;

when the ball valve is normally used, the first fixing plate 100 and the valve body 140 are respectively connected to two ends of a water pipe, the control valve rod 160 is rotated through the wrench 170, and the V-shaped ball body 150 is driven to rotate in the cavity of the valve body 140, so that the normal control process of the ball valve is completed; when the ball valve is abnormal and needs to be replaced or adjusted, the fixation of the valve body 140 and the second fixing plate 110 can be released, the valve body 140 is moved to the left side, the valve body 140 drives the first moving plate 120 to move leftwards, the first moving plate 120 drives the second moving plate 130 through the hinge 135 and drives the ball valve baffle plate 180 to move leftwards, when the ball valve baffle plate 180 moves to the position of the original communication port, the ball valve baffle plate 180 moves towards the liquid outlet direction of suspension medium under the pressure of high-pressure suspension medium, the position of a pipeline through hole on the second fixing plate 110 is blocked, the pipeline closing process is completed, and the valve body 140 can be overhauled or replaced; when the valve body 140 is overhauled or replaced, the valve body 140 is pushed rightwards, the valve body 140 drives the first movable plate 120 to move rightwards, the ball valve baffle 180 is enabled to move upwards to return to the original position under the action of oblique force, the ball valve baffle 180 and the second movable plate 130 are driven to move rightwards together, the valve body 140 is fixed in the middle of the second fixed plate 110, the pipeline communication process is completed, the pipeline is directly closed and communicated through the movement of the valve body 140, when the valve body 140 is overhauled or replaced, the ball valve can automatically complete pipeline closing work, high-pressure turbid liquid media in a pipeline do not need to be emptied, the operation is convenient and simple, the overhauling efficiency is improved, the pipeline closing work is completed through the turbid liquid pressure in the pipeline, the closing effect is particularly obvious when the liquid pressure is higher, and the valve body is suitable for pipelines with high-pressure flowing media.

As shown in fig. 6 to 10:

the first sliding plate 120 is provided with a first conical seal 121, the first conical seal 121 is provided with a first sealing plate 122 and a first sealing groove 123, the second sliding plate 130 is provided with a second conical seal 131, the second conical seal 131 is provided with a second sealing plate 132 and a second sealing groove 133, the first sealing plate 122 is inserted into the second sealing groove 133, the second sealing plate 132 is inserted into the first sealing groove 123, the first conical seal 121, the first sealing plate 122, the second conical seal 131 and the second sealing plate 132 form a conical discharge hole 181, the ball valve baffle plate 180 is arranged inside the conical discharge hole 181, the first sliding plate 120 is provided with a through hole 124, and the through hole 124 is arranged in the middle of the first sliding plate 120;

in a normal state, the first moving plate 120 and the second moving plate 130 are placed in parallel, so that the first sealing plate 122 and the second sealing plate 132 are respectively inserted into the second sealing groove 133 and the first sealing groove 123, when the first sealing plate 122 and the second sealing plate 132 are separated, the hinge 135 is straightened, so that the inner side surfaces of the first conical seal 121, the first sealing plate 122, the second conical seal 131 and the second sealing plate 132 form a complete conical discharge port 181, the ball valve baffle 180 moves towards a liquid outlet direction under the pressure of a suspension medium in a pipeline, namely towards the conical tip direction of the conical discharge port 181 and is fixed inside the conical discharge port 181, so that the pipeline is closed, and meanwhile, the greater the pressure of the suspension medium in the pipeline is, the more stable the ball valve baffle 180 is fixed, and a good sealing effect can be achieved; when the first sealing plate 122 is attached to the second sealing plate 132, the first sealing plate 122 and the second sealing plate 132 are respectively pushed into the second sealing groove 133 and the first sealing groove 123, the first conical seal 121 converts the pushing force into an inclined thrust through an inner inclined surface, pushes the ball valve baffle 180 to move upwards to return to the original position, and moves rightwards together, so that the through hole 124 moves to the original position of the conical discharge hole 181, and pipeline communication is completed.

And further:

a conical through hole 113 is formed in the second fixing plate 110, the size of the bottom surface of the conical through hole 113 is the same as that of the through hole 124, and the conical degree of the conical through hole 113 is the same as that of the conical discharge hole 181;

when the first sealing plate 122 and the second sealing plate 132 are separated, the same conical surface is formed on the inner side of the conical discharge hole 181 and the inner side of the conical through hole 113, so that the ball valve baffle 180 can fall into the conical through hole 113, and the ball valve baffle 180 can be smoothly stopped at a required closed position in the moving process, thereby smoothly completing pipeline closure.

Further:

the edge of the ball valve baffle 180 is provided with a conical surface 182, and the conical surface 182 has the same conical degree as the conical discharge hole 181; when the ball valve baffle 180 is pressed by the suspension medium and slides to the inside of the conical through hole 113, the conical discharge hole 181 is completely attached to the conical surface formed on the inner side of the conical through hole 113, so that the sealing effect of the ball valve baffle 180 is ensured, and the suspension medium leakage caused by low sealing performance is avoided.

Further:

smooth wear-resistant coatings are arranged on the conical surfaces and the conical surfaces 182 of the conical discharge hole 181 and the conical through hole 113; through the smooth wear-resistant coating, the sealing performance of the ball valve baffle 180 can be improved, the friction resistance when the first moving plate 120 is pushed is reduced, and meanwhile, the influence of suspension media on the contact conical surfaces of the first moving plate 120, the second moving plate 130 and the ball valve baffle 180 is avoided, so that the service life of the components in the ball valve is prolonged.

And further:

the second sliding plate 130 is provided with two hinge grooves 134, one end of a hinge 135 is connected to the inner sides of the hinge grooves 134 by using screws, and the other end of the hinge 135 is connected to the first sliding plate 120 by using screws; when the first sealing plate 122 is attached to the second sealing plate 132, the hinge 135 can be completely hidden in the hinge slot 134, so that the adjacent surfaces of the first sliding plate 120 and the second sliding plate 130 are tightly attached, and the conical surfaces at the two sides of the conical discharge hole 181 are symmetrical to each other, thereby ensuring that the ball valve baffle plate 180 smoothly slides upwards, improving the stress stability of the ball valve baffle plate 180 during repeated use, and prolonging the service life of the ball valve.

As shown in fig. 11:

the first fixed plate 100 is provided with a first chute 101, the first sliding plate 120 is provided with a first platen 125, the second sliding plate 130 is provided with a second platen 136, and the first platen 125 and the second platen 136 are both connected in the first chute 101 in a sliding manner; when the first sliding plate 120 and the second sliding plate 130 slide, the first sliding slot 101 plays a role in limiting, and prevents the first sliding plate 120 and the second sliding plate 130 from slipping due to a lateral force, which affects a pipeline sealing effect.

As shown in fig. 12 and 13:

the second fixed plate 110 is provided with a second sliding groove 111, the first sliding plate 120 and the second sliding plate 130 are both slidably connected inside the second sliding groove 111, the second fixed plate 110 is provided with two guide grooves 112, the first sliding plate 120 is provided with two first sliding blocks 126, and the two first sliding blocks 126 pass through the corresponding guide grooves 112 and are connected with the valve body 140 by screws;

when the valve body 140 and the internal structure thereof need to be overhauled or replaced, the valve body 140 can be pushed to one end of the edge of the guide groove 112 along the guide groove 112, the valve body 140 drives the first sliding plate 120 to move through the two first sliding blocks 126, the first sliding plate 120 drives the second sliding plate 130 to move, and drives the ball valve baffle 180 to move simultaneously, so that the synchronous closing work of the pipeline is completed; when the maintenance or replacement is completed, the valve body 140 is pushed back to the end close to the center along the guide groove 112, the valve body 140 drives the first sliding plate 120 through the two first sliding blocks 126, so that the first sliding plate 120 pushes the second sliding plate 130, and the ball valve baffle 180 is driven to move in the same direction at the same time, thereby completing the synchronous opening work of the pipeline, ensuring that the pipeline can be closed in time, and avoiding the leakage of turbid liquid media.

As shown in fig. 14:

the valve body 140 is provided with a plurality of sliding holes 141 and a plurality of fixing holes 142, the sliding holes 141 are arranged at positions corresponding to the two first sliding blocks 126, screws pass through the sliding holes 141 to be connected with the first sliding blocks 126, the fixing holes 142 are arranged at the outer sides of the sliding holes 141, the second fixing plate 110 is provided with a plurality of threaded holes corresponding to the fixing holes 142, the valve body 140 is provided with a sealing groove 143, the sealing groove 143 is arranged at one end of the valve body 140 connected with the second fixing plate 110, and a sealing strip is arranged in the sealing groove 143; when the valve body 140 is located at any end of the guide groove 112, the valve body 140 can be fixed on the second fixing plate 110 through the fixing hole 142 by using a screw, so that the sealing strip in the sealing groove 143 can be tightly pressed on the surface of the second fixing plate 110 near the outer side, thereby achieving a sufficient sealing effect and preventing suspension medium from leaking between the second fixing plate 110 and the valve body 140.

As shown in fig. 15:

a standard thread part 102 is arranged at one end of the valve body 140 far away from the second fixing plate 110, and the first fixing plate 100 is connected and communicated with a water pipe provided with the standard thread part 102 by using threads; the standard thread part 102 can be connected with a pipeline through a flexible water pipe joint, so that the pipeline connection is convenient, and the pipeline cannot be deformed and broken due to the movement of the valve body 140, so that a suspension medium is prevented from leaking.

Claims

1. A ball valve, characterized in that: the novel adjustable ball valve comprises a first fixing plate (100), a second fixing plate (110) is fixedly connected to the first fixing plate (100), a first sliding plate (120) and a second sliding plate (130) are connected between the first fixing plate (100) and the second fixing plate (110) in a sealing sliding mode, the first sliding plate (120) is connected to the second sliding plate (130) through a hinge (135), the first sliding plate (120), the second sliding plate (130), a ball valve baffle (180) is arranged between the first fixing plate (100) and the second fixing plate (110), a valve body (140) is fixedly connected to the first sliding plate (120) through the second fixing plate (110), a V-shaped ball body (150) is mounted inside the valve body (140), the V-shaped ball body (150) is fixedly connected to the valve body (140) through the valve body (160), and a wrench (170) is fixedly connected to the valve rod (160).

2. A ball valve according to claim 1, wherein: the sealing structure is characterized in that a first conical seal (121) is arranged on the first sliding plate (120), a first sealing plate (122) and a first sealing groove (123) are arranged on the first conical seal (121), a second conical seal (131) is arranged on the second sliding plate (130), a second sealing plate (132) and a second sealing groove (133) are arranged on the second conical seal (131), the first sealing plate (122) is inserted into the second sealing groove (133), the second sealing plate (132) is inserted into the first sealing groove (123), the first conical seal (121), the first sealing plate (122), the second conical seal (131) and the second sealing plate (132) form a conical discharge hole (181), a ball valve baffle plate (180) is arranged inside the conical discharge hole (181), a through hole (124) is arranged on the first sliding plate (120), and the through hole (124) is arranged in the middle of the first sliding plate (120).

3. A ball valve according to claim 2, wherein: the second fixing plate (110) is provided with a conical through hole (113), the size of the bottom surface of the conical through hole (113) is the same as that of the through hole (124), and the conical degree of the conical through hole (113) is the same as that of the conical discharge hole (181).

4. A ball valve according to claim 2, wherein: the edge of the ball valve baffle (180) is provided with a conical surface (182), and the conical surface (182) has the same conical degree as the conical discharge hole (181).

5. A ball valve according to claim 4, wherein: smooth wear-resistant coatings are arranged on the conical surfaces and the conical surfaces (182) of the conical discharge hole (181) and the conical through hole (113).

6. A ball valve according to claim 1, wherein: two hinge grooves (134) are formed in the second sliding plate (130), one end of each hinge (135) is fixedly connected to the inner side of each hinge groove (134), and the other end of each hinge (135) is fixedly connected to the first sliding plate (120).

7. A ball valve as claimed in claim 1, wherein: the first fixed plate (100) is provided with a first sliding chute (101), the first sliding plate (120) is provided with a first bedplate (125), the second sliding plate (130) is provided with a second bedplate (136), and the first bedplate (125) and the second bedplate (136) are connected in the first sliding chute (101) in a sealing and sliding mode.

8. A ball valve according to claim 1, wherein: the valve body is characterized in that a second sliding groove (111) is formed in the second fixing plate (110), the first sliding plate (120) and the second sliding plate (130) are connected inside the second sliding groove (111) in a sealing and sliding mode, two guide grooves (112) are formed in the second fixing plate (110), two first sliding blocks (126) are arranged on the first sliding plate (120), and the two first sliding blocks (126) penetrate through the corresponding guide grooves (112) and are fixedly connected with the valve body (140).

9. A ball valve according to claim 8, wherein: be equipped with a plurality of sliding hole (141) and a plurality of fixed orifices (142) on valve body (140), sliding hole (141) set up the position that corresponds with two first sliders (126), and the screw passes sliding hole (141) and is connected with first slider (126), fixed orifices (142) set up in sliding hole (141) outside, are provided with a plurality of screw holes that correspond with fixed orifices (142) on second fixed plate (110), are provided with seal groove (143) on valve body (140), and seal groove (143) set up the one end of being connected at valve body (140) and second fixed plate (110).

10. A ball valve as claimed in claim 1, wherein: one end of the valve body (140) far away from the second fixing plate (110) is provided with a standard thread part (102), and the first fixing plate (100) is fixedly connected with and communicated with a water pipe provided with the standard thread part (102).