CN218347975U

CN218347975U - High-pressure soft and hard sealing ball valve for water

Info

Publication number: CN218347975U
Application number: CN202222444601.4U
Authority: CN
Inventors: 邱和春; 张俊林; 李政宏
Original assignee: Shanghai Guanlong Valve Energy Saving Equipment Co ltd
Current assignee: Shanghai Guanlong Valve Automation Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-20
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a water is with soft or hard sealed ball valve of high pressure, including spheroid and valve body, the valve body includes left side valve body, well valve body, right side valve body, install the left side connecting plate on left side valve body and install the right side connecting plate on right side valve body, left side valve body, well valve body and right side valve body connect gradually, the ball seat is installed to the spheroid, the intracavity between right side valve body and the right side connecting plate is installed with the valve seat subassembly, the valve seat subassembly passes through compression spring and connects the right side connecting plate, the right side connecting plate is equipped with the valve group subassembly guide way and prevents the silt baffle for valve seat subassembly activity direction, the valve seat subassembly is corresponding with the position of ball seat, when water is with the soft or hard sealed ball valve of high pressure, valve seat subassembly and ball seat butt. Compared with the prior art, the utility model discloses advantages such as concrete sealed reliable, long service life.

Description

High-pressure soft and hard sealing ball valve for water

Technical Field

The utility model belongs to the technical field of the ball valve and specifically relates to a water is with soft hard seal ball valve of high pressure.

Background

In modern hydraulic engineering, a hydroelectric power station system used for a high-pressure pump station or a high-water head (the water head exceeds 300 meters) is used as a valve device for maintenance or interception, and a high-pressure ball valve with a full diameter is generally selected in consideration of the safety and water loss requirements of the valve device. However, due to the fact that impurities in raw water are more, a traditional high-pressure ball valve for an industrial system is prone to valve seat blockage and failure due to structural design, the ball seat and the valve seat are always in a sealing state in the valve opening and closing process, garbage in the middle cavity of the valve body cannot flow out automatically, and the garbage accumulation is prone to causing difficulty in opening the valve. Therefore, the conventional high-pressure ball valve for industrial systems has many limitations on the use of water conditions, and is generally not recommended.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a make sealed more reliable, the water of the life of extension valve is with high pressure soft or hard sealed ball valve in order to overcome the defect that above-mentioned prior art exists.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a water is with high-pressure soft or hard sealed ball valve, includes spheroid and valve body, the valve body includes left side valve body, well valve body, right side valve body, installs left side connecting plate on the left side valve body and installs the right side connecting plate on the right side valve body, left side valve body, well valve body and right side valve body connect gradually, the ball seat is installed to the spheroid, the intracavity between right side valve body and the right side connecting plate is installed with the valve seat subassembly, the valve seat subassembly passes through compression spring and connects the right side connecting plate, the valve seat subassembly is corresponding with the position of ball seat, works as when water is with high-pressure soft or hard sealed ball valve closes, valve seat subassembly and ball seat butt.

Further, the valve seat assembly comprises a valve seat, a first sealing ring and a blocking ring, the blocking ring is fixedly connected with the valve seat, the valve seat is connected with the right side connecting plate through a compression spring, the first sealing ring is fixed on the matching surface of the valve seat and the blocking ring and extends out of the end surface of the valve seat and the blocking ring, and when the water high-pressure soft-hard sealing ball valve is closed, the valve seat and the first sealing ring are abutted to the ball seat.

Further, the right side connecting plate is equipped with valves subassembly guide way and prevents the silt baffle, the one end of disk seat is equipped with the arch, and this arch is located in the valves subassembly guide way, prevent that the silt baffle is located one side of valves subassembly guide way.

Further, a second sealing ring is installed on the matching surface of the valve seat and the valve group assembly guide groove.

Further, the valve seat and the ball seat are made of stainless steel materials, and hard alloy is deposited on the surface of the valve seat and the ball seat in a surfacing mode.

Further, the baffle ring is of an annular structure, and the first sealing ring is an O-shaped sealing ring.

Further, the spheroid is equipped with the recess, the ball seat is fixed in the recess, the fitting surface of ball seat and recess is equipped with the third sealing washer.

Further, the high-pressure soft and hard sealing ball valve for water is of a double eccentric structure.

Furthermore, a cylindrical groove for installing a compression spring is formed in the right connecting plate.

Further, the left connecting plate is fixed on the left valve body through a bolt; and the right connecting plate is fixed on the right valve body through a bolt.

Compared with the prior art, the utility model has the advantages of it is following:

(1) The utility model provides a pair of water is with soft or hard sealed ball valve of high pressure has soft or hard double-seal structure in the uniflow upwards, and first one is sealed to be metal hard seal structure, and the second is sealed to be soft seal structure, and double-seal structure makes sealed more reliable, has improved wearability, washing resistance and the corrosion resistance of valve, very big extension the life of valve.

(2) The utility model provides a pair of water is with high pressure ball valve sealed soft or hard, its disk seat subassembly back compression spring has guaranteed the leakproofness when the low pressure, and medium pressure can get into disk seat subassembly back and promote the disk seat subassembly and compress tightly the ball seat during high pressure, forms self sealss effect, and pressure is high more, and sealed effect is better.

(3) The utility model provides a pair of water is with soft hard sealing ball valve of high pressure adopts two eccentric structures, and the ball seat can break away from fast with the disk seat in the twinkling of an eye in the valve is opened, and when the valve was opened entirely, the clearance between disk seat and the ball seat flowed can be followed to rubbish in the well valve body chamber, avoids rubbish to pile up and hinders opening and close of valve in the well valve body.

(4) The utility model provides a pair of water is with high pressure soft or hard sealed ball valve has the silt-proof baffle structure between right side connecting plate and the valve seat subassembly, prevents that rubbish in the medium and silt etc. from entering into the valve seat subassembly guide way and the spring groove of valve seat subassembly and right side connecting plate and hindering the activity about of valve seat subassembly, have guaranteed the reliable seal of valve.

Drawings

Fig. 1 is a schematic structural view of a high-pressure soft and hard sealing ball valve for water provided in an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion I of FIG. 1;

in the figure, 1, a left side connecting plate, 2, a left side valve body, 3, a middle valve body, 4, a right side valve body, 5, a right side connecting plate, 501, a silt-proof baffle, 502, a valve seat assembly guide groove, 6, a ball body, 7, a valve seat assembly, 701, a valve seat, 702, a baffle ring, 703, a first sealing ring, 8, a ball seat, 9, a third sealing ring, 10 and a compression spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Example 1

As shown in fig. 1 and 2, the embodiment provides a water-used high-pressure soft and hard sealing ball valve, including spheroid 6 and valve body, the valve body includes left side valve body 2, well valve body 3, right side valve body 4, install left side connecting plate 1 on left side valve body 2 and install right side connecting plate 5 on right side valve body 4, left side valve body 2, well valve body 3 and right side valve body 4 connect gradually, ball seat 8 is installed to spheroid 6, the intracavity between right side valve body 4 and the right side connecting plate 5 is installed and is had valve seat subassembly 7, valve seat subassembly 7 passes through compression spring 10 and connects right side connecting plate 5, valve seat subassembly 7 is corresponding with the position of ball seat 8, when water-used high-pressure soft and hard sealing ball valve closes, valve seat subassembly 7 and ball seat 8 butt.

The valve seat assembly 7 comprises a valve seat 701, a first sealing ring 703 and a baffle ring 702, the baffle ring 702 is fixedly connected with the valve seat 701, the valve seat 701 is connected with the right connecting plate 5 through a compression spring 10, the first sealing ring 703 is fixed on the matching surface of the valve seat 701 and the baffle ring 702 and extends out of the end surfaces of the valve seat 701 and the baffle ring 702, and when the high-pressure soft-hard sealing ball valve for water is closed, the valve seat 701 and the first sealing ring 703 are abutted to the ball seat 8.

The ball seat 8 and the valve seat component 7 form a soft and hard double-sealing structure, wherein the ball seat 8 and the valve seat 701 are made of stainless steel, hard alloy is deposited on the surface of the ball seat, and the sealing ring 703 is made of plastic. The ball seat 8 and the valve seat 701 form a first sealing structure which is a hard sealing structure; the ball seat 8 and the sealing ring 703 form a second sealing structure which is a soft sealing structure, and the sealing structure is at the downstream side of the ball valve and is a one-way double seal.

The baffle ring 702 is an annular structure, and the first seal ring 703 is an O-ring.

The spheroid 6 is equipped with the recess, and ball seat 8 is fixed in the recess, and the fitting surface of ball seat 8 and recess is equipped with third sealing washer 9.

Optionally, a stop ring 702 in the valve seat assembly 7 is fixed on the valve seat 701 through a bolt, a sealing ring 703 is clamped between the valve seat 701 and the stop ring 702, and a compression spring 10 is installed in a cylindrical groove of the right connecting plate 5 to provide initial sealing specific pressure for the valve seat 701 and the sealing ring 703.

A cylindrical groove for installing a compression spring 10 is arranged in the right connecting plate 5. The left connecting plate 1 is fixed on the left valve body 2 through a bolt; the right connecting plate 5 is fixed on the right valve body 4 by bolts. The ball seat is of an annular structure, and the sealing surface is a spherical surface and is fixed on the ball body through a bolt.

As a preferred embodiment, the right connecting plate 5 is provided with a valve block assembly guide groove 502 and a silt prevention baffle 501 for movably guiding the valve seat assembly 7, one end of the valve seat 701 is provided with a protrusion, the protrusion is located in the valve block assembly guide groove 502, and the silt prevention baffle 501 is located on one side of the valve block assembly guide groove 502.

The mating surfaces of the valve seat 701 and the valve block assembly guide groove 502 are fitted with a second seal ring for sealing.

In a preferred embodiment, the high-pressure soft and hard sealing ball valve for water has a double eccentric structure, when the valve is opened and closed, the ball seat 8 performs a swinging motion relative to the valve seat 701 and the sealing ring 703, when the valve is closed, the ball seat 8 abuts against the valve seat 701 and the sealing ring 703, and the more tight the valve is, the compression spring 10 provides a pre-tightening force on the back surface to provide an initial specific sealing pressure of the ball seat 8 with the valve seat 701 and the sealing ring 703, so that the low-pressure sealing performance is ensured; when the valve is in a high-pressure working condition, medium pressure enters the back of the valve seat 701, the area S2 of the front face of the valve seat assembly 7 under the action of water pressure is smaller than the water pressure area S1 of the back face, the pressure difference F = P (S1-S2), the medium pressure pushes the valve seat assembly 7 to compress the ball seat 8, the pressure is higher, the sealing effect is better, and the sealing performance of the valve under the high-pressure working condition is guaranteed.

When the ball valve is in a closed state for a long time, medium garbage in the pipeline can be accumulated on the inner bottom surfaces of the pipeline and the valve, if a silt-preventing structure is not arranged, the medium garbage or silt can be deposited into the sealing groove 502 of the valve seat assembly to block the normal movement of the valve seat assembly 7, and the sealing reliability of the valve is influenced. The utility model discloses the design has between right side connecting plate 5 and valve seat component 7 and prevents silt dog 501 structure, and during the rubbish deposit can not enter into valve seat component guide way 5.2, guaranteed valve seat component 7's normal operating, more guaranteed the leakproofness and the reliability of valve. And because this design is double eccentric structure, when the valve need be opened, ball seat 8 and valve holder subassembly 7 can break away from fast opening the moment, and deposit rubbish in 3 chambeies of well valve body can rush out from the clearance between valve holder subassembly 7 and the ball seat 8, avoids rubbish to pile up and hinders the normal start-stop of valve at the interior bottom surface of well valve body 3.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the principles of this invention. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a high pressure soft or hard seal ball valve for water, includes spheroid (6) and valve body, its characterized in that, the valve body includes left side valve body (2), well valve body (3), right side valve body (4), installs left side connecting plate (1) on left side valve body (2) and installs right side connecting plate (5) on right side valve body (4), left side valve body (2), well valve body (3) and right side valve body (4) connect gradually, ball seat (8) are installed in spheroid (6), the intracavity between right side valve body (4) and right side connecting plate (5) is installed and is had valve seat subassembly (7), valve seat subassembly (7) are connected through compression spring (10) right side connecting plate (5), valve seat subassembly (7) correspond with the position of ball seat (8), work as when high pressure soft or hard seal ball valve for water closes, valve seat subassembly (7) and ball seat (8) butt.

2. The high-pressure soft and hard sealing ball valve for the water is characterized in that the valve seat assembly (7) comprises a valve seat (701), a first sealing ring (703) and a baffle ring (702), the baffle ring (702) is fixedly connected with the valve seat (701), the valve seat (701) is connected with the right connecting plate (5) through a compression spring (10), the first sealing ring (703) is fixed on matching surfaces of the valve seat (701) and the baffle ring (702) and extends out of end surfaces of the valve seat (701) and the baffle ring (702), and when the high-pressure soft and hard sealing ball valve for the water is closed, the valve seat (701) and the first sealing ring (703) are abutted against a ball seat (8).

3. The high-pressure soft-hard sealing ball valve for water as claimed in claim 2, wherein the right connecting plate (5) is provided with a valve block assembly guide groove (502) and a silt-proof baffle (501), one end of the valve seat (701) is provided with a protrusion which is positioned in the valve block assembly guide groove (502), and the silt-proof baffle (501) is positioned at one side of the valve block assembly guide groove (502).

4. A high pressure soft or hard sealing ball valve for water as claimed in claim 3 wherein the mating surface of the valve seat (701) and the valve block assembly guide groove (502) is provided with a second sealing ring.

5. The high-pressure soft-hard sealing ball valve for water as claimed in claim 2, wherein the valve seat (701) and the ball seat (8) are both made of stainless steel, and hard alloy is deposited on the surface of the valve seat.

6. The high-pressure soft-hard sealing ball valve for water as claimed in claim 2, wherein the baffle ring (702) is of an annular structure, and the first sealing ring (703) is an O-ring.

7. A water high-pressure soft-hard sealed ball valve according to claim 1, characterized in that the ball body (6) is provided with a groove, the ball seat (8) is fixed in the groove, and the matching surface of the ball seat (8) and the groove is provided with a third sealing ring (9).

8. The high-pressure soft and hard sealing ball valve for water as claimed in claim 1, wherein the high-pressure soft and hard sealing ball valve for water has a double eccentric structure.

9. A water high-pressure soft-hard sealed ball valve according to claim 1, characterized in that a cylindrical groove for installing a compression spring (10) is arranged in the right connecting plate (5).

10. The high-pressure soft and hard sealing ball valve for water as claimed in claim 1, characterized in that the left connecting plate (1) is fixed on the left valve body (2) by bolts; and the right connecting plate (5) is fixed on the right side valve body (4) through a bolt.