CN215293683U

CN215293683U - Four-eccentric, spherical and conic sealing bidirectional ball-pressing valve

Info

Publication number: CN215293683U
Application number: CN202121561117.9U
Authority: CN
Inventors: 谢正泽; 陈继江; 黄亚光; 张炎
Original assignee: Afa Flow Control Co ltd
Current assignee: Afa Flow Control Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-24
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a four off-centre, sphere, two-way pressure ball valve of taper line seal, including valve body, disk seat and C type spheroid, the disk seat is fixed to be set up in the inside of valve body, and the C type spheroid passes through the valve rod activity and sets up in the inside of valve body, and the C type spheroid cooperatees with the disk seat, and the ladder groove has been seted up to one side of valve body inner wall, and one side of ladder inslot wall is equipped with through the disk seat pressure and presses the cover, presses the outer lane of cover one side to inlay and is equipped with a plurality of spring, and the one end of a plurality of spring all with one side fixed connection of ladder inslot wall, the disk seat passes through the clamp plate and presses the opposite side of establishing at ladder inslot wall, the beneficial effects of the utility model are that: no friction transmission exists between the sealing surfaces of the ball valves, and the valve seats and the sealing surfaces are not abraded; the sealing spokes are in line contact, so that the sealing torque can be greatly reduced, the model selection cost of an actuating mechanism is reduced, the ball valve has a bidirectional sealing function, is not limited by the flow direction of a medium during installation, and can bear high pressure, low torque and the like.

Description

Four-eccentric, spherical and conic sealing bidirectional ball-pressing valve

Technical Field

The utility model relates to a two-way ball valve of pressing, in particular to four eccentric, sphere, the sealed two-way ball valve of pressing of awl line belong to ball valve technical field.

Background

In the known ball valve technology, the sealing form is mostly rubber, teflon material and the like. Due to the limitation of structural characteristics, the high-temperature-resistant, high-pressure-resistant, corrosion-resistant and abrasion-resistant working conditions are not suitable. The industrial high-temperature high-pressure hard sealing valve mainly comprises a gate valve and a stop valve, and the main defects of the valves are as follows: the valve is of an up-down opening structure, the weight of the valve is large, the cost is high, the field installation space is large, and the diameter of the flow channel is large.

At present hard seal ball valve has begun to popularize, can replace above some with high costs, lift type trip valve, but the forehead hard seal ball valve does not possess filtration, blocks up ball valve and follow-up pipeline easily, the utility model discloses further improvement has been made on the basis of the sealed width of cloth of hard seal ball valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way ball valve of pressing of four eccentricities, sphere, taper line seal to the current ball valve that proposes in solving above-mentioned background art can not adapt to the problem of abominable operating mode such as high temperature resistant, high pressure and corrosion-resistant, wear-resisting.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a four eccentric, sphere, the sealed two-way ball valve that presses of taper line, includes valve body, disk seat and C type spheroid, the fixed inside that sets up at the valve body of disk seat, C type spheroid passes through the valve rod activity and sets up in the inside of valve body, just C type spheroid cooperatees with the disk seat, the ladder groove has been seted up to one side of valve body inner wall, one side of ladder inslot wall is pressed through the disk seat and is equipped with the pressure cover, the outer lane of pressing cover one side inlays and is equipped with a plurality of spring, a plurality of the one end of spring all with one side fixed connection of ladder inslot wall, the opposite side at ladder inslot wall is established through the clamp plate pressure to the disk seat, filtering component is installed to the inner wall of valve body one side.

As a preferred technical scheme of the utility model, the clamp plate passes through a plurality of connecting screw fixed mounting in one side of valve body inner wall.

As an optimal technical scheme of the utility model, be equipped with the winding gasket between clamp plate and the disk seat.

As an optimized technical scheme of the utility model, be equipped with flexible sealing washer between disk seat and the pressure cover.

As an optimal technical scheme of the utility model, the spherical sealed face has been seted up to the inner wall of disk seat, just the disk seat is made for alloy steel material.

As an optimized technical proposal of the utility model, one side of the C-shaped ball body is provided with a conical sealing surface.

As a preferred technical scheme of the utility model, the annular groove has been seted up to the inner wall of valve body one side, filtering component includes the collar, the collar is through a plurality of mounting screw fixed mounting in the inside of annular groove, the fixed section of thick bamboo that alternates and be equipped with the frustum form in middle part of collar is strained.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a four-eccentric, spherical and conic sealing bidirectional ball valve (figure 1), which ensures that no friction transmission exists between the sealing surfaces of the ball valve and no abrasion exists between the valve seat and the sealing surfaces; the sealing spokes are in line contact, so that the sealing torque can be greatly reduced, the molding cost of an actuating mechanism is reduced, the valve seat is made of integral alloy steel, and a spherical sealing surface has the advantages of metal hard sealing, has excellent sealing performance no matter at low temperature and high temperature, is corrosion-resistant, and long in service life; eccentricity 1: the center of a valve rod of the ball valve overlooks the X-direction eccentricity, and the eccentricity is 2: valve rod center overlooking Y-direction eccentricity of the ball valve, eccentricity 3: the C-shaped spherical sealing auxiliary elliptic cone is eccentric, and the eccentricity is 4: each section of the elliptic cone body is a regular circular surface, so that when the valve is closed, the elliptic conical surface of the C-shaped sphere is in line contact with the spherical surface of the valve seat, the ball valve is four-eccentric, the spherical surface and the conical line seal bidirectional pressure ball valve are generated, the conventional high-temperature and high-pressure gate valve and stop valve can be replaced, certain cost can be reduced, the installation space is compressed, the use quality is not reduced, the improvement is performed on the basis of the conventional hard seal ball valve, the sealing effect is better, the use under severe working conditions can be better withstood, the cost of an actuating mechanism is reduced, and the valve plays a role in various fields such as petroleum, chemical engineering, metallurgy, water and electricity; through filtering component can filter the fluid of flow through the valve body inside, hold back impurity, follow-up jam is avoided to the at utmost, and filtering component is convenient for install and dismantle, is convenient for then clear up and change, and is more practical.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;

fig. 4 is an eccentric schematic view of the present invention.

In the figure: 1. a valve body; 2. pressing a plate; 3. a connecting screw; 4. winding the gasket; 5. a spring; 6. pressing the sleeve; 7. a flexible sealing ring; 8. a valve seat; 9. a C-shaped sphere; 10. a valve stem; 11. an annular groove; 12. a filter assembly; 121. a mounting ring; 122. mounting screws; 123. a filter cartridge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a four eccentric, spherical, conical line sealing two-way ball valve, which comprises a valve body 1, a valve seat 8 and a C-shaped ball 9, wherein the valve seat 8 is fixedly arranged inside the valve body 1, the C-shaped ball 9 is movably arranged inside the valve body 1 through a valve rod 10, the C-shaped ball 9 is matched with the valve seat 8, one side of the inner wall of the valve body 1 is provided with a stepped groove, one side of the inner wall of the stepped groove is provided with a pressing sleeve 6 through the valve seat 8, the outer ring of one side of the pressing sleeve 6 is embedded with a plurality of springs 5, one end of each spring 5 is fixedly connected with one side of the inner wall of the stepped groove, the valve seat 8 is pressed on the other side of the inner wall of the stepped groove through a pressing plate 2, the purpose of line contact sealing is achieved through the contact matching of the conical sealing surface on the C-shaped ball 9 and the spherical sealing surface of the inner wall of the valve seat 8, the ball valve is four eccentric, the spherical and conical line sealing structure is specially designed, the ball valve has the function of bidirectional sealing, is not limited by the flow direction of a medium during installation, can bear high pressure, has the characteristics of low torque and the like, and the filtering component 12 is installed on the inner wall of one side of the valve body 1.

Preferably, the pressure plate 2 is fixedly arranged on one side of the inner wall of the valve body 1 through a plurality of connecting screws 3, and the pressure plate 2 is convenient to disassemble and assemble through the connecting screws 3; a winding gasket 4 is arranged between the pressing plate 2 and the valve seat 8, and the winding gasket 4 can play a role in buffering, so that the compression performance of the pressing plate 2 is improved; a flexible sealing ring 7 is arranged between the valve seat 8 and the pressing sleeve 6, and the sealing effect between the valve seat 8 and the pressing sleeve 6 can be improved through the flexible sealing ring 7; the inner wall of the valve seat 8 is provided with a spherical sealing surface, and the valve seat 8 is made of alloy steel, so that the valve seat 8 has the advantage of metal hard sealing, has excellent sealing performance no matter under the conditions of low temperature and high temperature, and has corrosion resistance and long service life; one side of the C-shaped ball body 9 is provided with a conical sealing surface, an elliptical cone and a conical sealing surface with a circular tangent plane are processed on the C-shaped ball body 9, and a sealing pair is bonded into line contact sealing; annular groove 11 has been seted up to the inner wall of valve body 1 one side, filtering component 12 includes collar 121, collar 121 passes through a plurality of mounting screw 122 fixed mounting in annular groove 11's inside, the fixed interior of collar 121 alternates and is equipped with the section of thick bamboo 123 that is equipped with the frustum form, it can filter the fluid of flowing through to strain a section of thick bamboo 123 on collar 121, get rid of the impurity in the fluid, follow-up jam is avoided to the at utmost, and collar 121 and a section of thick bamboo 123 all can be made for stainless steel material with straining, prolonged service life, it is inconvenient that the flowing diameter that valve body 1 can be ensured to strain a section of thick bamboo 123 design into the frustum form.

When the ball valve is used, the utility model relates to a four-eccentric, spherical and conical-line sealed two-way pressure ball valve, firstly, a pressure sleeve 6 is pressed on one side of the inner wall of a stepped groove by a valve seat 8, then the valve seat 8 is pressed on the other side of the inner wall of the stepped groove by a pressure plate 2, then the pressure plate 2 is fixedly arranged on one side of the inner wall of a valve body 1 by a connecting screw 3, the pressure plate 2 is convenient to disassemble and assemble by the connecting screw 3, and then the valve seat 8 is convenient to disassemble and assemble, in the using process, a C-shaped ball body 9 is driven by a valve rod 10 to rotate to be matched with the valve seat 8 to achieve the purpose of opening and closing the ball valve, namely, the conical sealing surface on the C-shaped ball body 9 is in contact fit with the spherical sealing surface on the inner wall of the valve seat 8 to achieve the purpose of line contact sealing, the ball valve is four-eccentric, spherical and spherical, the spherical and conical-line sealing structure is specially designed to enable the ball valve to have the two-way sealing function, is not limited by the medium flow direction during installation and can bear high pressure, the characteristics such as the moment of torsion is low, the fluid can filter the fluid of flowing through straining a section of thick bamboo 123 on the collar 121 when flowing through valve body 1, get rid of the impurity in the fluid, hold back impurity at the ball valve front end, follow-up jam is avoided to the at utmost, guarantee C type spheroid 9 and disk seat 8's sealed cooperation, and is more practical, through the whole filter assembly 12 of dismouting of being convenient for of mounting screw 122, then be convenient for clear up and change, and collar 121 and strain a section of thick bamboo 123 and all can make for stainless steel material, increase of service life.

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

Claims

1. A four-eccentric, spherical and conic sealing bidirectional ball valve comprises a valve body (1), a valve seat (8) and a C-shaped ball body (9), it is characterized in that the valve seat (8) is fixedly arranged in the valve body (1), the C-shaped ball body (9) is movably arranged in the valve body (1) through a valve rod (10), and the C-shaped ball body (9) is matched with the valve seat (8), one side of the inner wall of the valve body (1) is provided with a stepped groove, a pressing sleeve (6) is pressed on one side of the inner wall of the stepped groove through a valve seat (8), a plurality of springs (5) are embedded in the outer ring at one side of the pressing sleeve (6), one ends of the plurality of springs (5) are fixedly connected with one side of the inner wall of the stepped groove, disk seat (8) are pressed through clamp plate (2) and are established the opposite side at the ladder inslot wall, filtering component (12) are installed to the inner wall of valve body (1) one side.

2. The four-eccentric, spherical and conic seal two-way ball valve according to claim 1, wherein: the pressure plate (2) is fixedly arranged on one side of the inner wall of the valve body (1) through a plurality of connecting screws (3).

3. The four-eccentric, spherical and conic seal two-way ball valve according to claim 1, wherein: and a winding gasket (4) is arranged between the pressing plate (2) and the valve seat (8).

4. The four-eccentric, spherical and conic seal two-way ball valve according to claim 1, wherein: and a flexible sealing ring (7) is arranged between the valve seat (8) and the pressing sleeve (6).

5. The four-eccentric, spherical and conic seal two-way ball valve according to claim 1, wherein: the inner wall of the valve seat (8) is provided with a spherical sealing surface, and the valve seat (8) is made of alloy steel.

6. The four-eccentric, spherical and conic seal two-way ball valve according to claim 1, wherein: one side of the C-shaped sphere (9) is provided with a conical sealing surface.

7. The four-eccentric, spherical and conic seal two-way ball valve according to claim 1, wherein: the inner wall of one side of the valve body (1) is provided with an annular groove (11), the filtering component (12) comprises a mounting ring (121), the mounting ring (121) is fixedly mounted inside the annular groove (11) through a plurality of mounting screws (122), and a frustum-shaped filter cylinder (123) is fixedly inserted in the middle of the mounting ring (121).