CN213451814U

CN213451814U - Ultrahigh pressure double-ball valve

Info

Publication number: CN213451814U
Application number: CN202022440054.3U
Authority: CN
Inventors: 吴磊; 张绍南
Original assignee: Suzhou Tesco Fluid Control Equipment Co ltd
Current assignee: Suzhou Tesco Fluid Control Equipment Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-15
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a two ball valve of superhigh pressure uses in the valve field, and its technical scheme main points are: comprises a valve body, a valve cavity arranged in the valve body and a flow rate control assembly arranged in the valve cavity; the flow rate control assemblies are provided with two groups, each flow rate control assembly comprises a valve ball rotatably arranged in a valve cavity, a valve rod connected with the valve ball and a handle arranged on the valve rod, a shaft penetrating through hole communicated with the valve cavity is formed in the valve body, and the shaft penetrating through hole is used for the valve rod to pass through; a valve seat assembly used for sealing a gap between the valve ball and the valve body is arranged in the valve cavity, and valve cover assemblies used for limiting the position of the valve ball are arranged at two ends of the valve body; the valve has the technical effect that the valve can better bear high-pressure and even ultrahigh-pressure fluid pressure without leakage, so that the valve can better control the fluid delivery in a pipeline.

Description

Ultrahigh pressure double-ball valve

Technical Field

The utility model relates to a valve field, in particular to two ball valve of superhigh pressure.

Background

At present, chinese patent publication No. CN107387797B discloses a ball valve, which includes: a valve body having an inner cavity; the valve seat is arranged in the inner cavity, and an accommodating space is formed between one end of the valve seat and the valve body; the spring is arranged in the accommodating space and is arranged between the valve body and the valve seat in an abutting mode; the ball valve still includes: the isolating cylinder is connected between the valve body and the valve seat and divides the accommodating space into a spring accommodating space and an overflowing space which are mutually independent, and the spring is accommodated in the spring accommodating space; the ball body is provided with a valve port communicated with the ball body, the end face of the valve seat contacted with the spring is provided with an annular boss, one end of the isolating cylinder is connected in the inner wall of the valve port, and the other end of the isolating cylinder is connected on the annular boss.

Although the conventional ball valve can control the fluid, the conventional ball valve can only be applied to some conventional fluid conveying pipelines, and a high-pressure resistant ball valve is urgently needed to be provided on many high-pressure fluid conveying pipelines.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two ball valve of superhigh pressure, its advantage can be better bear the high pressure, the fluid pressure of superhigh pressure even and can not reveal to fluid transport in the control duct that the valve can be better.

The above technical purpose of the present invention can be achieved by the following technical solutions: an ultrahigh pressure double-ball valve comprises a valve body, a valve cavity and a flow rate control assembly, wherein the valve cavity and the flow rate control assembly are arranged in the valve body;

the flow velocity control assembly comprises a valve ball rotatably arranged in a valve cavity, a valve rod connected with the valve ball and a handle arranged on the valve rod, wherein a shaft penetrating through hole communicated with the valve cavity is formed in the valve body and is used for the valve rod to pass through;

the valve cavity is internally provided with a valve seat assembly for sealing a gap between the valve ball and the valve body, and two ends of the valve body are provided with valve cover assemblies for limiting the position of the valve ball.

Through the technical scheme, the handle is used for being held by a worker so as to rotate the valve rod better, the valve rod can drive the valve ball to rotate through rotation, and therefore the communication part of the through hole in the valve ball and the through hole in the valve body is changed so as to adjust the flow rate of fluid in the valve body; the two groups of flow rate control assemblies can better reduce the pressure borne by the joint of a single valve ball and the valve body, so that the whole structure of the valve can bear higher pressure; the valve seat assembly is used for sealing a gap between the valve ball and the valve body so as to better avoid fluid leakage from the joint of the valve ball and the valve body; the valve cover assembly is used for limiting the valve group assembly and the valve ball in the valve cavity, and the valve ball is not displaced under the pressure of high-pressure fluid, so that the valve ball can rotate more stably.

The utility model discloses further set up to: the valve seat assembly comprises an annular soft valve seat and a metal valve seat, a sealing cambered surface attached to the outer side surface of the valve ball is arranged on the soft valve seat, the soft valve seat is in clamping fit with the metal valve seat, and a valve seat accommodating groove communicated with the valve cavity is formed in the valve body; one sealing valve ball corresponds to two groups of valve seat assemblies, and the metal valve seat close to the middle position of the valve body is arranged in the valve seat accommodating groove.

Through the technical scheme, the sealing cambered surface on the soft valve seat can be well attached to the outer side surface of the valve ball, so that the soft valve seat can well seal and block a gap between the metal valve seat and the valve ball; the soft valve seat is clamped in the metal valve seat, so that the connection between the soft valve seat and the metal valve seat is more stable, and the soft valve seat can resist higher fluid pressure; the valve seat accommodating groove is used for accommodating a metal valve seat, and the position of the metal valve seat is well limited, so that the metal valve seat is more stable to be arranged, and the metal valve seat can better resist the pressure of fluid.

The utility model discloses further set up to: one side of the metal valve seat, which is far away from the soft valve seat, is provided with a valve seat sealing groove, a valve seat sealing ring is arranged in the valve seat sealing groove, and the valve seat sealing ring is abutted against the metal valve seat and the inner wall of the valve cavity.

Through the technical scheme, the valve seat sealing ring is arranged in the valve seat sealing groove, so that the valve seat sealing ring is more firmly installed, the valve seat sealing ring can better seal up a gap between the metal valve seat and the valve body, and thus fluid is better prevented from leaking from the gap between the metal valve seat and the valve body.

The utility model discloses further set up to: the valve cover assembly comprises a pressing cover and a positioning ring, the pressing cover is detachably connected with the valve body, and the metal valve seat far away from the middle position of the valve body is arranged in the positioning ring.

Through above-mentioned technical scheme, compress tightly the lid and can dismantle with the valve body and be connected for it is more convenient in installing valve ball and disk seat subassembly to the valve pocket, better improvement the efficiency of assembly valve, the maintenance of the later stage of also being convenient for.

The utility model discloses further set up to: the cover body sealing groove is formed in the position, close to the positioning ring, of the compression cover, a cover body sealing ring is arranged in the cover body sealing groove, and the cover body sealing ring is abutted to the inner wall of the cover body sealing groove and the inner wall of the valve cavity.

Through above-mentioned technical scheme, the lid seal groove is used for placing the lid sealing washer to make the lid sealing washer place more stable, the lid sealing washer can be better will compress tightly the clearance shutoff between lid and the valve body, thereby better avoiding.

The utility model discloses further set up to: one side of the pressing cover, which is far away from the valve ball, is provided with at least two easy-to-detach fabrication holes.

Through above-mentioned technical scheme, easy removable fabrication hole is used for supplying extracting tool to insert into for can be convenient will compress tightly the lid and install on the valve body, perhaps dismantle from the valve body.

The utility model discloses further set up to: and a bearing is arranged between the valve rod and the valve body.

Through above-mentioned technical scheme, the bearing is used for reducing the frictional force between valve rod and the valve body, also the relative position between restriction valve rod and the valve body that can be better to make the valve rod can be more stable drive the valve ball and rotate.

The utility model discloses further set up to: the valve body is provided with a limiting ring, the valve rod is provided with an anti-falling ring, the outer diameter of the anti-falling ring is larger than the inner diameter of the limiting ring, and a lip-shaped ring is arranged between the anti-falling ring and the shaft penetrating through hole.

Through the technical scheme, the valve rod can be well prevented from falling out of the shaft penetrating through hole due to the matching of the limiting ring and the anti-falling ring; the lip circle is used for plugging up the clearance between valve rod and the through-hole inner wall of wearing, and when the lip circle received pressure, the both sides of lip circle can open to laminating that can be better prevents the lateral wall of falling the ring on the valve rod and the inner wall of wearing the through-hole, and then can be better open sealed effect.

To sum up, the utility model discloses following beneficial effect has:

1. the two fluid control assemblies can better share the pressure of fluid in the valve body, so that the whole valve can better bear high-pressure or even ultrahigh-pressure fluid;

2. the valve body both ends are injectd the valve ball in the valve body through the valve gap subassembly to make valve body overall structure more firm, and the valve body of non-traditional ball valve forms for two parts concatenation, and then makes the holistic compressive property of valve body better.

Drawings

FIG. 1 is a sectional view showing the entire structure of the present embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

fig. 4 is an enlarged schematic view of part C of fig. 1.

Reference numerals: 1. a valve body; 2. a valve cavity; 3. a flow rate control assembly; 4. a valve ball; 5. a valve stem; 6. a handle; 7. a shaft through hole; 8. a valve seat assembly; 9. a valve cover assembly; 10. a soft valve seat; 11. a metal valve seat; 12. sealing the arc surface; 14. a valve seat sealing groove; 15. a valve seat sealing ring; 16. a compression cover; 17. a positioning ring; 18. a cover body sealing groove; 19. a cover body sealing ring; 20. easily disassembling the fabrication hole; 21. a bearing; 22. a limiting ring; 23. preventing a ring from falling; 24. a lip-shaped ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, an ultrahigh pressure double-ball valve comprises a valve body 1, a valve cavity 2 formed in the valve body 1, and flow rate control assemblies 3, wherein the valve body 1 is integrally cylindrical, and the flow rate control assemblies 3 are symmetrically arranged in two groups along the length direction of the valve body 1. Flow rate control assembly 3 sets up valve ball 4, valve rod 5 and handle 6 in valve pocket 2 including rotating, sets up the through-shaft through-hole 7 with the intercommunication of valve pocket 2 on the valve body 1, and valve rod 5 runs through-shaft through-hole 7 and 4 key-type connections of valve ball, and handle 6 welds on valve rod 5, through the rotation valve rod 5 that grips handle 6 and can be convenient, and then drives valve ball 4 and rotate to fluid conveying efficiency in the control valve pocket 2.

Referring to fig. 1 and 2, a bearing 21 is sleeved on the valve rod 5, and an outer ring of the bearing 21 is in transition fit with the shaft through hole 7, so that the valve rod 5 can rotate more stably; the valve body 1 is integrally formed with a limiting ring 22, the valve rod 5 is integrally formed with an anti-falling ring 23, and the outer diameter of the anti-falling ring 23 is larger than the inner diameter of the limiting ring 22, so that the valve rod 5 cannot be taken out from the direction away from the valve ball 4 after being installed in the shaft through hole 7, and the valve rod 5 can be used more stably; prevent falling and be provided with lip circle 24 between ring 23 and the through-hole 7 of wearing, lip circle 24 blocks up valve rod 5 and the clearance between the through-hole 7 inner wall of wearing, and when lip circle 24 received pressure, lip circle 24's both sides can open to the laminating that can be better prevents falling the lateral wall of ring 23 and the inner wall of through-hole 7 of wearing on valve rod 5, and then can be better open sealed effect.

Referring to fig. 3, a valve cavity 2 is provided with valve seat assemblies 8 for sealing gaps between the valve balls 4 and the valve body 1, each valve ball 4 is correspondingly provided with two groups of valve seat assemblies 8, and the two groups of valve seat assemblies 8 are symmetrically arranged on two sides of the valve ball 4 along the length direction of the valve body 1; the valve seat assembly 8 comprises a soft valve seat 10 and a metal valve seat 11, and the soft valve seat 10 is an annular rubber ring made of rubber. The metal valve seat 11 is an annular metal ring made of stainless steel. Be provided with the sealed cambered surface 12 with the laminating of valve ball 4 lateral wall on the soft disk seat 10, sealed joint groove has been seted up towards one side of valve ball 4 to metal disk seat 11, and soft disk seat 10 joint is in sealed joint groove.

Referring to fig. 3, the valve body 1 is provided with a circular valve seat receiving groove near the middle position in the length direction thereof, and a metal valve seat 11 in the valve seat assembly 8 near the middle position of the valve body 1 is disposed in the valve seat receiving groove; a valve seat sealing groove 14 is formed in one side, away from the soft valve seat 10, of the metal valve seat 11, a valve seat sealing ring 15 is arranged in the valve seat sealing groove 14, the valve seat sealing ring 15 is an O-shaped ring made of rubber, and the valve seat sealing ring 15 is pressed and then is abutted against the inner wall of the valve seat sealing groove 14 and the inner wall of the valve seat accommodating groove, so that a good sealing effect can be achieved; and the valve seat accommodating groove accommodates the metal valve seat 11 therein, so that the metal valve seat 11 can be placed more stably, and the valve seat assembly 8 and the valve ball 4 can bear high-pressure or even overpressure of fluid.

Referring to fig. 1, both ends of a valve body 1 are provided with a valve cover assembly 9 for limiting a valve seat assembly 8 and a valve ball 4 in a valve cavity 2, the valve cover assembly 9 comprises a pressing cover 16 and a positioning ring 17, the outer side of the pressing cover 16 is provided with an external thread, and the valve body 1 is provided with an internal thread matched with the external thread; two easy-to-detach fabrication holes 20 are formed in one side, away from the valve ball 4, of the pressing cover 16, the two easy-to-detach fabrication holes 20 are uniformly distributed in the circumferential direction of the pressing cover 16, and a detaching tool is inserted into the two easy-to-detach fabrication holes 20, so that the pressing cover 16 can be conveniently screwed; and avoided offering through-hole or screw hole on compressing tightly the lid 16, guaranteed compressing tightly the overall structure intensity of lid 16, compressing tightly the joint strength that lid 16 and valve body 1 are also better simultaneously.

Referring to fig. 1 and 4, a positioning ring 17 is arranged on one side of the pressing cover 16 close to the valve ball 4, and the metal valve seats 11 in the valve seat assembly 8 close to the two ends of the valve body 1 are arranged in a receiving groove formed by the positioning ring 17 and the pressing cover 16; a cover body sealing groove 18 is formed in the position, close to the positioning ring 17, of the pressing cover 16, a cover body sealing ring 19 is arranged in the cover body sealing groove 18, the cover body sealing ring 19 is an O-shaped ring made of rubber, and the cover body sealing ring 19 is abutted against the inner wall of the cover body sealing groove 18 and the inner wall of the valve cavity 2.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. An ultrahigh pressure double-ball valve comprises a valve body (1), a valve cavity (2) and a flow velocity control assembly (3) arranged in the valve cavity (2) are arranged in the valve body (1);

the flow velocity control device is characterized in that two groups of flow velocity control assemblies (3) are arranged, each flow velocity control assembly (3) comprises a valve ball (4) rotatably arranged in a valve cavity (2), a valve rod (5) connected with the valve ball (4) and a handle (6) arranged on the valve rod (5), a shaft penetrating through hole (7) communicated with the valve cavity (2) is formed in the valve body (1), and the valve rod (5) passes through the shaft penetrating through hole (7);

the valve cavity (2) is internally provided with a valve seat assembly (8) for sealing a gap between the valve ball (4) and the valve body (1), and two ends of the valve body (1) are provided with valve cover assemblies (9) for limiting the position of the valve ball (4).

2. The ultrahigh-pressure double-ball valve according to claim 1, wherein the valve seat assembly (8) comprises an annular soft valve seat (10) and a metal valve seat (11), a sealing arc surface (12) attached to the outer side surface of the valve ball (4) is arranged on the soft valve seat (10), the soft valve seat (10) is in clamping fit with the metal valve seat (11), and a valve seat accommodating groove communicated with the valve cavity (2) is arranged in the valve body (1); one sealing valve ball (4) corresponds to two groups of valve seat assemblies (8), and a metal valve seat (11) close to the middle position of the valve body (1) is arranged in the valve seat accommodating groove.

3. The ultrahigh-pressure double-ball valve according to claim 2, wherein a valve seat sealing groove (14) is formed in one side, away from the soft valve seat (10), of the metal valve seat (11), a valve seat sealing ring (15) is arranged in the valve seat sealing groove (14), and the valve seat sealing ring (15) is abutted against the metal valve seat (11) and the inner wall of the valve cavity (2).

4. An ultra-high pressure double ball valve according to claim 2, wherein the valve cover assembly (9) comprises a pressing cover (16) and a positioning ring (17), the pressing cover (16) is detachably connected with the valve body (1), and a metal valve seat (11) far away from the middle position of the valve body (1) is arranged in the positioning ring (17).

5. The ultrahigh-pressure double-ball valve according to claim 4, wherein a cover body sealing groove (18) is formed in the position, close to the positioning ring (17), of the pressing cover (16), a cover body sealing ring (19) is arranged in the cover body sealing groove (18), and the cover body sealing ring (19) is abutted against the inner wall of the cover body sealing groove (18) and the inner wall of the valve cavity (2).

6. An ultrahigh pressure double ball valve according to claim 4, characterized in that the side of the compressing cover (16) far away from the valve ball (4) is provided with at least two easy-to-detach fabrication holes (20).

7. An ultra-high pressure double ball valve according to claim 1, wherein a bearing (21) is provided between the valve stem (5) and the valve body (1).

8. An ultrahigh pressure double ball valve according to claim 1, wherein a limit ring (22) is arranged on the valve body (1), a drop-proof ring (23) is arranged on the valve rod (5), the outer diameter of the drop-proof ring (23) is larger than the inner diameter of the limit ring (22), and a lip-shaped ring (24) is arranged between the drop-proof ring (23) and the shaft through hole (7).