CN113864477A - High-pressure duplex floating ball valve - Google Patents
High-pressure duplex floating ball valve Download PDFInfo
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- CN113864477A CN113864477A CN202111174586.XA CN202111174586A CN113864477A CN 113864477 A CN113864477 A CN 113864477A CN 202111174586 A CN202111174586 A CN 202111174586A CN 113864477 A CN113864477 A CN 113864477A
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- valve seat
- valve
- ring
- hole
- left end
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- 238000007789 sealing Methods 0.000 claims description 69
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
- F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a high-pressure duplex floating ball valve which comprises a valve body, wherein a valve cavity is arranged in the valve body, a positioning convex ring is integrally arranged at the middle position of the valve cavity of the valve body, a first valve seat assembly is arranged at the left end of the positioning convex ring, a first ball body is arranged at the left end of the first valve seat assembly, a second valve seat assembly is arranged at the left end of the first ball body, and a first threaded end cover is arranged at the left end of the second valve seat assembly; the right end of the positioning convex ring is provided with a third valve seat assembly, the right end of the third valve seat assembly is provided with a second ball, the right end of the second ball is provided with a fourth valve seat assembly, and the right end of the fourth valve seat assembly is provided with a second threaded end cover; the valve body left end is provided with first valve body through-hole, first valve body through-hole left end is provided with first female connection portion, just first screw thread end cover and first female connection portion threaded connection. Above-mentioned technical scheme, structural design is reasonable, safe and reliable, the leakproofness is good, long service life and practicality are good.
Description
Technical Field
The invention relates to the technical field of floating ball valves, in particular to a high-pressure duplex floating ball valve.
Background
The ball body of the floating ball valve is floating, and under the action of medium pressure, the ball body can generate certain displacement and is tightly pressed on a sealing surface of the outlet end, so that the outlet end is sealed.
However, the existing floating ball valve has the following defects: the structure sets up unreasonablely, and current ball valve that floats uses operating mode pressure grade not high, the reliability is low, sealing performance is poor, life weak point etc. the practicality is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the high-pressure duplex floating ball valve which is reasonable in structural design, safe, reliable, good in sealing performance, long in service life and good in practicability.
In order to achieve the purpose, the invention provides the following technical scheme: a high-pressure duplex floating ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a positioning convex ring is integrally arranged at the middle position of the valve cavity on the valve body, a first valve seat assembly is arranged at the left end of the positioning convex ring, a first ball body is arranged at the left end of the first valve seat assembly, a second valve seat assembly is arranged at the left end of the first ball body, and a first threaded end cover is arranged at the left end of the second valve seat assembly; the right end of the positioning convex ring is provided with a third valve seat assembly, the right end of the third valve seat assembly is provided with a second ball, the right end of the second ball is provided with a fourth valve seat assembly, and the right end of the fourth valve seat assembly is provided with a second threaded end cover; a first valve body through hole is formed in the left end of the valve body, a first internal thread connecting portion is formed in the left end of the first valve body through hole, the first thread end cover is in threaded connection with the first internal thread connecting portion, a first O-shaped sealing ring is sleeved at the left end of the first thread end cover, a second O-shaped sealing ring is sleeved at the right end of the first thread end cover, and the first thread end cover and the inner wall face of the first valve body through hole form sealing through the first O-shaped sealing ring and the second O-shaped sealing ring; the right end face of the first threaded end cover is provided with a first plane ring groove and a first spring fulcrum, the right end of the first spring fulcrum is provided with a first disc spring, and the right end of the first disc spring is connected with the left end of the second valve seat component.
The invention is further configured to: the right end of the valve body is provided with a second valve body through hole, a second internal thread connecting portion is arranged at the right end of the second valve body through hole, the second threaded end cover is in threaded connection with the second internal thread connecting portion, a third O-shaped sealing ring is sleeved at the left end of the second threaded end cover, a fourth O-shaped sealing ring is sleeved at the right end of the second threaded end cover, and the second threaded end cover is sealed with the inner wall face of the second valve body through hole through the third O-shaped sealing ring and the fourth O-shaped sealing ring.
The invention is further configured to: and a second plane ring groove and a second spring fulcrum are arranged on the left end face of the second threaded end cover, a second disc spring is arranged at the left end of the second spring fulcrum, and the left end of the second disc spring is connected with the right end of the fourth valve seat assembly.
The invention is further configured to: the first valve seat assembly comprises a first valve seat and a first valve seat support ring, the first valve seat is fixedly connected with the first valve seat support ring, and the right end of the first valve seat is tightly pressed and sealed with the first ball body; the first valve seat supporting ring is sleeved with a first piston sealing ring, and the first valve seat supporting ring is sealed through the inner wall surface of the first piston sealing ring and the inner wall surface of the first valve body through hole.
The invention is further configured to: the second valve seat assembly comprises a second valve seat and a second valve seat supporting ring, the second valve seat is fixedly connected with the second valve seat supporting ring, and the left end of the second valve seat is tightly pressed and sealed with the first ball body; and a second piston sealing ring is sleeved on the second valve seat supporting ring, and the second valve seat supporting ring forms sealing with the inner wall surface of the first valve body through hole through the second piston sealing ring.
The invention is further configured to: the third valve seat assembly comprises a third valve seat and a third valve seat supporting ring, the third valve seat is fixedly connected with the third valve seat supporting ring, and the right end of the third valve seat is tightly pressed and sealed with the second ball body; and a third piston sealing ring is sleeved on the third valve seat supporting ring, and the third valve seat supporting ring forms sealing with the inner wall surface of the through hole of the second valve body through the third piston sealing ring.
The invention is further configured to: the fourth valve seat assembly comprises a fourth valve seat and a fourth valve seat support ring, the fourth valve seat is fixedly connected with the fourth valve seat support ring, and the left end of the fourth valve seat is tightly pressed and sealed with the second ball body; and a fourth piston sealing ring is sleeved on the fourth valve seat supporting ring, and the fourth valve seat supporting ring forms sealing with the inner wall surface of the through hole of the second valve body through the fourth piston sealing ring.
The invention is further configured to: the valve body is of an integrated structure, a first valve rod through hole is formed in the position, right above the first ball body, of the valve body, a first valve rod assembly is arranged in the first valve rod through hole, and the lower end of the first valve rod assembly is fixedly connected with the upper end of the first ball body; and a second valve rod through hole is formed in the position, right above the second ball body, of the valve body, a second valve rod assembly is arranged in the second valve rod through hole, and the lower end of the second valve rod assembly is fixedly connected with the upper end of the second ball body.
The invention has the advantages that: compared with the prior art, the valve body has the advantages that the structure is more reasonable, the valve body is of an integrated structure, and the safety is high; two ends of the thread of the threaded end cover are respectively provided with two O-shaped rings, so that the thread is prevented from being corroded by a medium, and later maintenance is facilitated; each valve seat assembly consists of a piston sealing ring and a valve seat supporting ring under high pressure, and can generate sealing thrust along with the pressure of a medium, and the higher the pressure is, the better the sealing effect is; a plane ring groove and a spring fulcrum are designed on the threaded end cover, so that elastic failure caused by flattening of the disc spring is effectively prevented; safe and reliable, good leakproofness, long service life and practicality are good.
The invention is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of section I of FIG. 1;
fig. 3 is an enlarged view of section II in fig. 1.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, 2 and 3, the high-pressure duplex floating ball valve disclosed by the invention comprises a valve body 1, wherein a valve cavity is arranged in the valve body 1, a positioning convex ring 11 is integrally arranged at the middle position of the valve cavity of the valve body 1, a first valve seat assembly 2 is arranged at the left end of the positioning convex ring 11, a first ball body 3 is arranged at the left end of the first valve seat assembly 2, a second valve seat assembly 4 is arranged at the left end of the first ball body 3, and a first threaded end cover 5 is arranged at the left end of the second valve seat assembly 4; the right end of the positioning convex ring 11 is provided with a third valve seat assembly 6, the right end of the third valve seat assembly 6 is provided with a second ball 7, the right end of the second ball 7 is provided with a fourth valve seat assembly 8, and the right end of the fourth valve seat assembly 8 is provided with a second threaded end cover 9; a first valve body through hole is formed in the left end of the valve body 1, a first internal thread connecting portion is formed in the left end of the first valve body through hole, the first thread end cover 5 is in threaded connection with the first internal thread connecting portion, a first O-shaped sealing ring 10 is sleeved at the left end of the first thread end cover 5, a second O-shaped sealing ring 12 is sleeved at the right end of the first thread end cover 5, and the first thread end cover 5 forms sealing with the inner wall surface of the first valve body through hole through the first O-shaped sealing ring 10 and the second O-shaped sealing ring 12; a first plane annular groove 51 and a first spring fulcrum 52 are arranged on the right end face of the first threaded end cover 5, a first disc spring 13 is arranged at the right end of the first spring fulcrum 52, and the right end of the first disc spring 13 is connected with the left end of the second valve seat assembly 4.
Preferably, a second valve body through hole is formed in the right end of the valve body 1, a second internal thread connecting portion is formed in the right end of the second valve body through hole, the second thread end cover 9 is in threaded connection with the second internal thread connecting portion, a third O-shaped sealing ring 14 is sleeved at the left end of the second thread end cover 9, a fourth O-shaped sealing ring 15 is sleeved at the right end of the second thread end cover 9, and the second thread end cover 9 and the inner wall surface of the second valve body through hole form sealing through the third O-shaped sealing ring 14 and the fourth O-shaped sealing ring 15.
In order to make the structure of the present invention more reasonable, preferably, in this embodiment, a second planar ring groove 91 and a second spring fulcrum 92 are disposed on the left end surface of the second threaded end cover 9, a second disc spring 16 is disposed at the left end of the second spring fulcrum 92, and the left end of the second disc spring 16 is connected to the right end of the fourth valve seat assembly 8.
The first valve seat assembly 2 comprises a first valve seat 21 and a first valve seat support ring 22, the first valve seat 21 is fixedly connected with the first valve seat support ring 22, and the right end of the first valve seat 21 is tightly pressed and sealed with the first ball 3; the first valve seat support ring 22 is sleeved with a first piston sealing ring 23, and the first valve seat support ring 22 forms sealing with the inner wall surface of the first valve body through hole through the first piston sealing ring 23.
The second valve seat assembly 4 comprises a second valve seat 41 and a second valve seat supporting ring 42, the second valve seat 41 is fixedly connected with the second valve seat supporting ring 42, and the left end of the second valve seat 41 is tightly pressed and sealed with the first ball 3; the second valve seat supporting ring 42 is sleeved with a second piston sealing ring 43, and the second valve seat supporting ring 42 forms a seal with the inner wall surface of the first valve body through hole through the second piston sealing ring 43. Preferably, a first inclined surface 421 is provided on a left end surface of the second valve seat support ring 42.
The third valve seat assembly 6 comprises a third valve seat 61 and a third valve seat supporting ring 62, the third valve seat 61 is fixedly connected with the third valve seat supporting ring 62, and the right end of the third valve seat 61 is tightly pressed and sealed with the second ball 7; the third piston sealing ring 63 is sleeved on the third valve seat supporting ring 62, and the third valve seat supporting ring 62 forms sealing with the inner wall surface of the through hole of the second valve body through the third piston sealing ring 63.
The fourth valve seat assembly 8 comprises a fourth valve seat 81 and a fourth valve seat support ring 82, the fourth valve seat 81 is fixedly connected with the fourth valve seat support ring 82, and the left end of the fourth valve seat 81 is tightly pressed and sealed with the second ball 7; the fourth valve seat support ring 82 is sleeved with a fourth piston sealing ring 83, and the fourth valve seat support ring 82 forms a seal with the inner wall surface of the through hole of the second valve body through the fourth piston sealing ring 83. Preferably, a second inclined surface 821 is provided on a right end surface of the four seat support ring 82.
Preferably, a third disc spring is arranged between the right end of the first valve seat support ring 22 of the first valve seat assembly 2 and the left end of the positioning convex ring 11, a third inclined plane is arranged on the right end surface of the first valve seat support ring 22, a second plane ring groove and a third spring fulcrum are arranged on the left end surface of the positioning convex ring 11, and the third disc spring is located between the first valve seat support ring 22 and the third spring fulcrum;
be provided with the fourth dish spring between the right-hand member of location bulge loop 11 and the third valve seat supporting ring 62 left end face of third valve seat subassembly 6, be provided with second plane annular and third spring fulcrum on the right-hand member face of location bulge loop 11, be provided with the fourth inclined plane on the left end face of third valve seat supporting ring 62, the fourth dish spring is located between third valve seat supporting ring 62 and the third spring fulcrum.
The valve body 1 is of an integrated structure, a first valve rod through hole is formed in the position, right above the first ball body 3, of the valve body 1, a first valve rod assembly 17 is arranged in the first valve rod through hole, and the lower end of the first valve rod assembly 17 is fixedly connected with the upper end of the first ball body 3; a second valve rod through hole is formed in the position, right above the second ball body 7, of the valve body 1, a second valve rod assembly 18 is arranged in the second valve rod through hole, and the lower end of the second valve rod assembly 18 is fixedly connected with the upper end of the second ball body 7.
A first medium through hole is axially formed in the first threaded end cover 5, a second medium through hole is formed in the second valve seat supporting ring 42, a third medium through hole is axially formed in the first ball 3, a fourth medium through hole is formed in the first valve seat supporting ring 22, a fifth medium through hole is axially formed in the third valve seat supporting ring 62, a sixth medium through hole is formed in the second ball 7, a seventh medium through hole is formed in the fourth valve seat supporting ring 82, an eighth medium through hole is formed in the second threaded end cover 9, and axial center lines of the medium through holes are overlapped.
In practical application, the valve body is of an integrated structure, so that the safety is high; two ends of the thread of the threaded end cover are respectively provided with two O-shaped rings, so that the thread is prevented from being corroded by a medium, and later maintenance is facilitated; each valve seat assembly consists of a piston sealing ring and a valve seat supporting ring under high pressure, and can generate sealing thrust along with the pressure of a medium, and the higher the pressure is, the better the sealing effect is; a plane ring groove and a spring fulcrum are designed on the threaded end cover, so that elastic failure caused by flattening of the disc spring is effectively prevented; safe and reliable, good leakproofness, long service life and practicality are good.
The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.
Claims (8)
1. The utility model provides a high pressure pair ball valve that floats, includes valve body (1), be provided with the valve pocket in valve body (1), its characterized in that: a positioning convex ring (11) is integrally arranged at the middle position of the valve cavity of the valve body (1), a first valve seat assembly (2) is arranged at the left end of the positioning convex ring (11), a first ball body (3) is arranged at the left end of the first valve seat assembly (2), a second valve seat assembly (4) is arranged at the left end of the first ball body (3), and a first threaded end cover (5) is arranged at the left end of the second valve seat assembly (4); a third valve seat assembly (6) is arranged at the right end of the positioning convex ring (11), a second ball body (7) is arranged at the right end of the third valve seat assembly (6), a fourth valve seat assembly (8) is arranged at the right end of the second ball body (7), and a second threaded end cover (9) is arranged at the right end of the fourth valve seat assembly (8); a first valve body through hole is formed in the left end of the valve body (1), a first internal thread connecting portion is formed in the left end of the first valve body through hole, the first thread end cover (5) is in threaded connection with the first internal thread connecting portion, a first O-shaped sealing ring (10) is sleeved at the left end of the first thread end cover (5), a second O-shaped sealing ring (12) is sleeved at the right end of the first thread end cover (5), and the first thread end cover (5) and the inner wall face of the first valve body through hole form sealing through the first O-shaped sealing ring (10) and the second O-shaped sealing ring (12); the right end face of the first threaded end cover (5) is provided with a first plane ring groove (51) and a first spring fulcrum (52), the right end of the first spring fulcrum (52) is provided with a first disc spring (13), and the right end of the first disc spring (13) is connected with the left end of the second valve seat assembly (4).
2. A high pressure twin floating ball valve as defined in claim 1 wherein: the right end of the valve body (1) is provided with a second valve body through hole, a second internal thread connecting portion is arranged at the right end of the second valve body through hole, the second thread end cover (9) is in thread connection with the second internal thread connecting portion, a third O-shaped sealing ring (14) is sleeved at the left end of the second thread end cover (9), a fourth O-shaped sealing ring (15) is sleeved at the right end of the second thread end cover (9), and the second thread end cover (9) is sealed through the third O-shaped sealing ring (14), the fourth O-shaped sealing ring (15) and the inner wall face of the second valve body through hole.
3. A high pressure twin floating ball valve as defined in claim 2 wherein: the left end face of the second threaded end cover (9) is provided with a second plane ring groove (91) and a second spring fulcrum (92), the left end of the second spring fulcrum (92) is provided with a second disc spring (16), and the left end of the second disc spring (16) is connected with the right end of the fourth valve seat assembly (8).
4. A high pressure twin floating ball valve as defined in claim 3 wherein: the first valve seat assembly (2) comprises a first valve seat (21) and a first valve seat support ring (22), the first valve seat (21) is fixedly connected with the first valve seat support ring (22), and the right end of the first valve seat (21) is tightly pressed and sealed with the first ball body (3); a first piston sealing ring (23) is sleeved on the first valve seat supporting ring (22), and the first valve seat supporting ring (22) is sealed through the first piston sealing ring (23) and the inner wall surface of the first valve body through hole.
5. A high pressure twin floating ball valve as defined in claim 4 wherein: the second valve seat assembly (4) comprises a second valve seat (41) and a second valve seat supporting ring (42), the second valve seat (41) is fixedly connected with the second valve seat supporting ring (42), and the left end of the second valve seat (41) is pressed and sealed with the first ball body (3); and a second piston sealing ring (43) is sleeved on the second valve seat supporting ring (42), and the second valve seat supporting ring (42) forms sealing with the inner wall surface of the first valve body through hole through the second piston sealing ring (43).
6. A high pressure twin floating ball valve as defined in claim 5 wherein: the third valve seat assembly (6) comprises a third valve seat (61) and a third valve seat supporting ring (62), the third valve seat (61) is fixedly connected with the third valve seat supporting ring (62), and the right end of the third valve seat (61) is tightly pressed and sealed with the second ball body (7); and a third piston sealing ring (63) is sleeved on the third valve seat supporting ring (62), and the third valve seat supporting ring (62) forms sealing with the inner wall surface of the through hole of the second valve body through the third piston sealing ring (63).
7. A high pressure twin floating ball valve as defined in claim 6 wherein: the fourth valve seat assembly (8) comprises a fourth valve seat (81) and a fourth valve seat support ring (82), the fourth valve seat (81) is fixedly connected with the fourth valve seat support ring (82), and the left end of the fourth valve seat (81) is tightly pressed and sealed with the second ball body (7); and a fourth piston sealing ring (83) is sleeved on the fourth valve seat supporting ring (82), and the fourth valve seat supporting ring (82) forms sealing with the inner wall surface of the through hole of the second valve body through the fourth piston sealing ring (83).
8. A high pressure twin floating ball valve as defined in claim 7 wherein: the valve body (1) is of an integrated structure, a first valve rod through hole is formed in the position, right above the first ball body (3), of the valve body (1), a first valve rod assembly (17) is arranged in the first valve rod through hole, and the lower end of the first valve rod assembly (17) is fixedly connected with the upper end of the first ball body (3); the valve body (1) is provided with a second valve rod through hole at a position right above the second ball body (7), a second valve rod assembly (18) is arranged in the second valve rod through hole, and the lower end of the second valve rod assembly (18) is fixedly connected with the upper end of the second ball body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174586.XA CN113864477A (en) | 2021-10-09 | 2021-10-09 | High-pressure duplex floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174586.XA CN113864477A (en) | 2021-10-09 | 2021-10-09 | High-pressure duplex floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113864477A true CN113864477A (en) | 2021-12-31 |
Family
ID=79002030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111174586.XA Pending CN113864477A (en) | 2021-10-09 | 2021-10-09 | High-pressure duplex floating ball valve |
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| Country | Link |
|---|---|
| CN (1) | CN113864477A (en) |
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|---|---|---|---|---|
| JP2003294157A (en) * | 2002-04-04 | 2003-10-15 | Kitz Corp | Ball valve |
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| JP2016138609A (en) * | 2015-01-28 | 2016-08-04 | 株式会社キッツ | Trunnion type ball valve |
| CN105952924A (en) * | 2016-07-04 | 2016-09-21 | 岳阳东方自控工程设备有限公司 | High-pressure ball valve sealed by inflatable type flexible sealing rings arranged inside valve seats |
| CN106763862A (en) * | 2016-12-26 | 2017-05-31 | 梅州市理想阀门技术有限公司 | Double spheroid single-direction metal sealing face ball valves |
| CN209180412U (en) * | 2018-12-25 | 2019-07-30 | 成都斯杰化工机械有限公司 | A kind of high pressure hard sealing ball valve |
-
2021
- 2021-10-09 CN CN202111174586.XA patent/CN113864477A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003294157A (en) * | 2002-04-04 | 2003-10-15 | Kitz Corp | Ball valve |
| CN202349251U (en) * | 2011-12-08 | 2012-07-25 | 上海开维喜阀门集团有限公司 | High-temperature high-voltage power station double-ball valve with double-blockage and relieving functions |
| JP2016138609A (en) * | 2015-01-28 | 2016-08-04 | 株式会社キッツ | Trunnion type ball valve |
| CN105952924A (en) * | 2016-07-04 | 2016-09-21 | 岳阳东方自控工程设备有限公司 | High-pressure ball valve sealed by inflatable type flexible sealing rings arranged inside valve seats |
| CN106763862A (en) * | 2016-12-26 | 2017-05-31 | 梅州市理想阀门技术有限公司 | Double spheroid single-direction metal sealing face ball valves |
| CN209180412U (en) * | 2018-12-25 | 2019-07-30 | 成都斯杰化工机械有限公司 | A kind of high pressure hard sealing ball valve |
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