CN214699250U

CN214699250U - High-performance bidirectional hard seal butterfly valve

Info

Publication number: CN214699250U
Application number: CN202120850718.5U
Authority: CN
Inventors: 金定昌; 郑勇飞; 陈华崇
Original assignee: Zhejiang Furui Industrial Group Co ltd
Current assignee: Zhejiang Furui Industrial Group Co ltd
Priority date: 2021-04-24
Filing date: 2021-04-24
Publication date: 2021-11-12
Anticipated expiration: 2031-04-24

Abstract

The utility model discloses a two-way hard sealed butterfly valve of high performance, including valve body, valve rod and spherical valve plate, be equipped with the sealing washer on the spherical valve plate, the sealing washer both sides are equipped with the constant head tank respectively, be equipped with on spherical valve plate and the sealing washer clamp plate with constant head tank matched with holding ring, be equipped with the boss in the valve body, be equipped with on the boss and fix the disk seat on the boss through the disk seat clamping ring, be equipped with the location bulge loop on the boss, be equipped with the positioning groove who mutually supports with the location bulge loop on the disk seat, location bulge loop joint is in positioning groove. The utility model discloses the location bulge loop on the positioning channel section through the disk seat and the boss cooperates to with the disk seat joint on the boss, then the extrusion of rethread disk seat clamping ring makes the disk seat can be more stable fixed, and the sealing washer both sides also are equipped with the location hoop cooperation on constant head tank and spherical valve plate and the disk seat clamping ring, prevent that sealing washer or disk seat from taking place the displacement and causing the spherical valve plate can not close the phenomenon that targets in place and leak.

Description

High-performance bidirectional hard seal butterfly valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a two-way butterfly valve sealed firmly of high performance.

Background

The valve is an indispensable fluid control device in a fluid conveying system, a butterfly valve, a ball valve and a gate valve belong to a cut-off valve, and are mainly used for cutting off media in a pipeline when the conveying system is overhauled and maintained.

The sliding valve seat of the butterfly valve is generally positioned by four open rings or check rings, the four open rings need to be grooved in an inner hole of a valve body for positioning, the strength of the valve body can be affected, the thickness of the valve body is uneven, and casting defects are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, a high-performance bidirectional hard seal butterfly valve is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a two-way butterfly valve sealed firmly of high performance, includes valve body, valve rod and spherical valve plate, its characterized in that, the spherical valve plate sets up inside the cavity of valve body, the spherical valve plate passes through the valve rod and is connected with the valve body rotation, be equipped with the sealing washer on the spherical valve plate, be equipped with the boss in the valve body, be equipped with the disk seat of fixing on the boss through the disk seat clamping ring on the boss.

As a further description of the above technical solution:

and positioning grooves are respectively arranged on two sides of the sealing ring, and positioning rings matched with the positioning grooves are arranged on the spherical valve plate and the sealing ring pressing plate.

As a further description of the above technical solution:

the positioning convex ring is arranged on the boss, the positioning clamping groove matched with the positioning convex ring is arranged on the valve seat, and the positioning convex ring is clamped in the positioning clamping groove.

As a further description of the above technical solution:

the upper end of the valve body is provided with a filler which is arranged in a grading manner, and a belleville spring is arranged between the filler and the filler.

As a further description of the above technical solution:

the central line of the valve rod and the central line of the valve seat are eccentrically arranged.

As a further description of the above technical solution:

the central thickness of the spherical valve plate is greater than the peripheral thickness.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a central line with the valve rod and the central line of disk seat are eccentric settings, spheroid and disk seat throw off completely when opening fully, when the valve is opened and close, the relative disk seat face of spherical valve plate has one to gradually break away from and gradually go into extruded effect, borrow for reference the sealed principle of ball valve, spherical valve plate and disk seat adopt the sealed form of sphere and sphere, sealed face can be better be adapted to and take the granule medium to mechanical wear and scotch between disk seat and the hemisphere when having reduced to open and close has improved life.

2. The utility model discloses the location bulge loop on the positioning channel section through the disk seat and the boss cooperates to with the disk seat joint on the boss, then the extrusion of rethread disk seat clamping ring makes the disk seat can be more stable fixed, and the sealing washer both sides also are equipped with the location hoop cooperation on constant head tank and spherical valve plate and the disk seat clamping ring, prevent that sealing washer or disk seat from taking place the displacement and causing the spherical valve plate can not close the phenomenon that targets in place and leak.

3. The utility model discloses a hierarchical filler adds between filler and establishes disc spring, and the general butterfly valve that compares is opened and close more nimble, reliable to the normal loss of combination filler arouses among the compensation operation process leakage.

Drawings

Fig. 1 is a schematic front sectional view of an embodiment of the present invention;

fig. 2 shows a schematic diagram of a right-view structure provided by an embodiment of the present invention;

fig. 3 shows a detailed view of an encircled part of fig. 1 provided by an embodiment of the present invention.

Illustration of the drawings:

1. a valve body; 2. a valve stem; 3. a spherical valve plate; 4. a seal ring; 5. a seal ring pressing plate; 6. positioning a groove; 7. a positioning ring; 8. a boss; 9. a valve seat compression ring; 10. a valve seat; 11. positioning the convex ring; 12. positioning the clamping groove; 13. a filler; 14. a belleville spring.

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a high-performance bidirectional hard seal butterfly valve comprises a valve body 1, a valve rod 2 and a spherical valve plate 3, and is characterized in that, the spherical valve plate 3 is arranged in the cavity of the valve body 1, the spherical valve plate 3 is rotationally connected with the valve body 1 through the valve rod 2, the spherical valve plate 3 is provided with a sealing ring 4, the sealing ring 4 is fixed on the spherical valve plate 3 through a sealing ring pressing plate 5, positioning grooves 6 are respectively arranged at two sides of the sealing ring 4, positioning rings 7 matched with the positioning grooves 6 are arranged on the spherical valve plate 3 and the sealing ring pressing plate 5, a boss 8 is arranged in the valve body 1, a valve seat 10 fixed on the boss 8 through a valve seat clamping ring 9 is arranged on the boss 8, the improved valve is characterized in that a positioning convex ring 11 is arranged on the boss 8, a positioning clamping groove 12 matched with the positioning convex ring 11 is arranged on the valve seat 10, and the positioning convex ring 11 is clamped in the positioning clamping groove 12.

Specifically, as shown in fig. 1, locating grooves 6 are respectively arranged on two sides of the sealing ring 4, the spherical valve plate 3 and the sealing ring pressing plate 5 are provided with locating rings 7 matched with the locating grooves 6, and the locating rings 7 are clamped in the locating grooves 6 during fixing to play roles of locating and preventing the displacement of the sealing ring 4.

Specifically, as shown in fig. 1, be equipped with location bulge loop 11 on the boss 8, be equipped with the positioning groove 12 of mutually supporting with location bulge loop 11 on the disk seat 9, location bulge loop 11 joint is in positioning groove 12, and the joint setting of location bulge loop 11 and positioning groove 12 can make disk seat 10 more accurate, stable fix in valve body 1, prevents that it from taking place the displacement and causing the leakage.

Specifically, as shown in fig. 1, the upper end of the valve body 1 is provided with a filler 13, the filler 13 is arranged in a grading manner, a belleville spring 14 is arranged between the filler 13 and the filler 13, and the belleville spring 14 has a self-tightening effect to compensate leakage caused by normal loss of the combined filler in the operation process.

Specifically, as shown in fig. 2, the central line of the valve rod 2 and the central line of the valve seat 10 are eccentrically arranged, and the eccentric arrangement enables the spherical valve plate 3 to gradually break away from and gradually squeeze the surface of the valve seat 10 when the valve is opened and closed, so that the mechanical abrasion and abrasion between the valve seat 10 and the spherical valve plate 3 when the valve is opened and closed are reduced, and the service life is prolonged.

Specifically, as shown in fig. 1, the central thickness of the spherical valve plate 3 is greater than the peripheral thickness, so that the middle part has stronger stress when the valve is impacted by media after being closed, and the impact force of the media is dispersed towards the periphery by the spherical structure, so that the stress surface is increased, the pressure of the media is reduced, the service life of the valve is prolonged, and the sealing performance of the valve is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a two-way butterfly valve sealed firmly of high performance, includes valve body (1), valve rod (2) and spherical valve plate (3), its characterized in that, spherical valve plate (3) set up inside the cavity of valve body (1), spherical valve plate (3) are connected through valve rod (2) and valve body (1) rotation, be equipped with sealing washer (4) on spherical valve plate (3), sealing washer (4) are fixed on spherical valve plate (3) through sealing washer clamp plate (5), be equipped with boss (8) in valve body (1), be equipped with on boss (8) and fix disk seat (9) on boss (8) through disk seat clamp ring (10).

2. The high-performance bidirectional hard seal butterfly valve according to claim 1, wherein positioning grooves (6) are respectively formed on both sides of the seal ring (4), and positioning rings (7) matched with the positioning grooves (6) are arranged on the spherical valve plate (3) and the seal ring pressure plate (5).

3. The high-performance bidirectional hard seal butterfly valve according to claim 1, wherein a positioning convex ring (11) is arranged on the boss (8), a positioning clamping groove (12) matched with the positioning convex ring (11) is arranged on the valve seat (9), and the positioning convex ring (11) is clamped in the positioning clamping groove (12).

4. The high-performance bidirectional hard seal butterfly valve according to claim 1, wherein a packing (13) is arranged at the upper end of the valve body (1), the packing (13) is arranged in stages, and a belleville spring (14) is arranged between the packing (13) and the packing (13).

5. A high performance, two-way, hard-seal butterfly valve according to claim 1, characterised in that the centre line of the valve stem (2) and the centre line of the valve seat (9) are eccentrically located.

6. A high performance two-way hard seal butterfly valve according to claim 1, wherein the central thickness of the spherical valve plate (3) is greater than the peripheral thickness.