CN203686225U - Forced seal fixed ball valve - Google Patents
Forced seal fixed ball valve Download PDFInfo
- Publication number
- CN203686225U CN203686225U CN201420038209.2U CN201420038209U CN203686225U CN 203686225 U CN203686225 U CN 203686225U CN 201420038209 U CN201420038209 U CN 201420038209U CN 203686225 U CN203686225 U CN 203686225U
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- valve seat
- valve
- valve body
- filler
- bar
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Abstract
The utility model discloses a ball valve, and particularly relates to a forced seal fixed ball valve. The forced seal fixed ball valve comprises a valve body, an auxiliary valve body, a ball body, a valve seat and an auxiliary valve body fluid pipeline, the outer circle of the auxiliary valve body fluid pipeline is provided with a pressure-driven device formed by parts such as a driving wheel, a steel ball and a driven wheel, a pressure transmission device formed by parts of a fine adjustment nut, dowel bars, a force transferring plate, a butterfly spring and the valve seat is arranged in the valve body and on the auxiliary valve body, and pressure generated by the pressure-driven device outside the ball body is transmitted to the valve seat in a valve cavity through the pressure transmission device so as to enable required sealing specific pressure generated between the valve seat and the ball body to meet forces sealing. The utility model further provides a forced valve seat packing sealing device with pressure automatic sealing and forced sealing composite performance, a spiral propelling rod can be rotated outside the ball body so as to conduct axial pressurization on valve seat packing in the valve cavity, and therefore radial sealing is achieved. The high-end packing made of stainless steel, industrial pure iron, flexible graphite, high polymer materials and the like can be effectively applied to the forced valve seat packing sealing device. The forced seal fixed ball valve and the forced valve seat packing sealing device can be made of corresponding materials according to fluid parameters and working conditions and are simple in structure, convenient to manufacture and long in service life.
Description
Technical field
The utility model relates to a kind of valve, particularly the fixing spherical ball valve of a kind of forced seal.
Background technique
Ball valve is a kind ofly to have the spheroid of runner as the valve of closure member, it is little that it has flow resistance, do not destroy fluid shape, the advantages such as switch is convenient, but the wearing and tearing that produce in the time of switch between spheroid and valve seat are also current a great problems, it has seriously affected spreadable life of valve, the researcher of valve industry has also done a large amount of work for this reason, this invention of one as disclosed in Chinese utility model patent ZL201320456935.1 " low moment of torsion is without wearing and tearing fixing ball valve " has again major progress in structure and usability, be in particular in that rotation when ball valve opens and closes be spheroid is complete spinning movement in 90 ° under the very little state of specific pressure with respect to valve seat, so be referred to as " low moment of torsion is without wearing and tearing fixing ball valve ", but a fly in the ointment is: the seal pressure while closing between valve seat and spheroid is to convert the hydraulic energy of hydraulic system to mechanical energy to realize, so leakage control point is many, particularly tiny leakage control difficulty is larger, while use, need to increase the allowable temperature of a lot of loaded down with trivial details device guarantee hydraulic systems under high temperature and high pressure condition, and manufacture cost is higher.
Summary of the invention
The purpose of this utility model is to overcome prior art deficiency, a kind of sealing surface that external the produced mechanical pressure of fixing spherical ball valve can be delivered to effectively to valve pocket interior spheroid and valve seat is provided, and produce seal pressure, realize forced seal and low moment of torsion open and close.
In order to achieve the above object, the technical solution adopted in the utility model is such: spherical ball valve is fixed in a kind of forced seal, it comprises valve body, auxiliary valve body, there is the spheroid of runner, valve seat, upper valve rod, lower valve rod, auxiliary valve body fluid line, on the cylindrical of described auxiliary valve body fluid line, follower is installed, the endoporus of its follower has the keyway of sliding axially, its keyway and be installed on the feather key of putting in the keyway of auxiliary valve body fluid line and be the connection that slides axially of sliding axially, the internal thread that the cylindrical of described auxiliary valve body fluid line also has outside thread and driving wheel screws mutually, the outside of driving wheel has on the cylindrical that positioning baffle is fixedly mounted on auxiliary valve body fluid line, the inner side surface of driving wheel and follower outer side surface have corresponding circumferential groove, several the steel balls that are circumferential arrangement are installed between its corresponding circumferential groove, described driving wheel can be along axial direction rotation advance and retreat on the outside thread of auxiliary valve body fluid line under the effect of external force, what be made up of above-mentioned parts is pressure actuated device, on the inner chamber of described valve body and auxiliary valve body, be equipped with several the dowel bars that are circumferential arrangement and there is motive sealing performance, its dowel bar outer end stretches out in outside auxiliary valve body, make to be installed on the fine-tuning nut of dowel bar end and the inner side surface of follower joins, the inner of dowel bar in valve body with valve seat step on force transmitting board join, the inner side of force transmitting board is equipped with butterfly spring, the shoulder of butterfly spring and valve seat joins, what be made up of above-mentioned parts is pressure transfer device, the pressure that pressure transfer device can produce external pressure actuated device is delivered in valve pocket, make the sealing surface between valve seat and spheroid produce seal pressure, realize forced seal, the fixing spherical ball valve of described forced seal also comprises a valve seat filler forced seal device that can make valve seat filler reach forced seal between valve seat and valve body.
In described pressure transfer device, in dowel bar coaxial, there is thick round bar part and thin round bar part forms, the cylindrical of its thin round bar part be static seal and be arranged on the filler endoporus of putting in filling tube on auxiliary valve body and filling tube and match, the outside of its filler has Gland, the outside of Gland has gland nut, the outside thread of gland nut and filling tube screws mutually, compress filler by screwing gland nut promotion Gland, make the thin round bar part of dowel bar and filler be motive sealing cooperation.
Described valve seat filler forced seal device, that at right angles trapezoidal valve seat filler packing ring of cross-sectional geometry is installed successively from inside to outside between the cylindrical of valve seat and the step hole of valve body and auxiliary valve body, cross-sectional geometry is the valve seat Gland that upper base matches with the valve seat filler of the parallel arbitrary quadrilateral of going to the bottom and with the body of valve seat filler surface of contact, the outside of described valve seat Gland and several the spiral thrust bars that are circumferential arrangement join, described spiral thrust bar has outside thread, coaxial externally threaded two ends also have inner round bar and outer end round bar, the end of described outer end round bar has the body of pulling, its male thread portion and corresponding several are the internal thread that circumferential arrangement static seal be arranged in the spiral thrust bar filling tube on auxiliary valve body and screw mutually, its outer end round bar respectively with spiral thrust bar filling tube in the spiral thrust bar filler put, the endoporus of spiral thrust bar Gland and spiral thrust bar Gland nut matches, spiral thrust bar Gland nut screws mutually with the outside thread of spiral thrust bar filler, rotate to promote spiral thrust bar Gland by spiral thrust bar Gland nut and compress spiral thrust bar filler, making the sealing round bar part of spiral thrust bar be motive sealing with spiral thrust bar filler coordinates, it is pulled body and divides and stretch out outside spiral thrust bar Gland nut, described inner round bar joins through the outside of force transmitting board and the corresponding circular hole of butterfly spring and valve seat Gland in valve pocket.
Described filling tube and spiral thrust bar filling tube are interval and install on the same circumference of auxiliary valve body.
The driving mode of described driving wheel and upper valve rod can adopt manually, gear transmission, electronic and can realize open and close and forced seal by automation control.
The beneficial effects of the utility model are:
1. the fixing spherical ball valve of a kind of forced seal of the utility model is in the time of open and close. and between spheroid and valve seat, be without counterrotating under wearing and tearing in low friction, reduced conventional ball valve and transferred switch and the heavy wear that causes at sealing load backspin, the utility model open and close torque is very low, wearing and tearing are very little, occur without jam phenomenon.
2. the sealing between the fixing spherical ball valve spheroid of a kind of forced seal of the utility model and valve seat, be outside ball valve body the mechanical pressure that produces by pressure transfer device, mechanical pressure is delivered to the sealing surface of valve pocket interior spheroid and valve seat, and produce seal pressure, realize forced seal, screw thread transmission has self-locking property and effectively prevents the tiny leakage between spheroid and valve seat, particularly at high temperature, high pressure, the fixing spherical ball valve of metal hard-sealing using under the harsh working conditions such as high wearing and tearing adopts the utility model, its sealability, Safety performance, operating characteristics, can reach optimum efficiency working life and ensure reliably.
3. the fixing spherical ball valve of a kind of forced seal of the utility model, valve seat filler between described valve seat and valve body, the utility model has adopted the mode of a kind of self-fastening pressure sealing and the forced seal of spiral thrust bar, sealing between valve seat and valve body is ensured reliably, by stainless steel, ingot iron, the seal elements such as Expanded graphite and macromolecule are applied effectively simultaneously.
4. the spreadable life of the present utility model is greatly improved, and is the working life of many times of conventional ball valve, to a great extent saving resource.
5. the structure of the fixing spherical ball valve of a kind of forced seal of the utility model adopts PLC to control and realizes automation and telecontrol.
6. the fixing spherical ball valve of a kind of forced seal of the utility model is simple in structure, easily manufactured, component can be selected suitable material manufacture according to the parameter of flowing medium in pipe-line system, can be applicable to various harsh fluid environments, flow channel shape can be identical with fluid line, without distortion bend, non-notch, do not destroy fluid shape, absence of vortices district, noise low, vibrate little, power of motor in drive unit is required to reduce, so energy-saving effect highly significant simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of the opening state of ball valve in the utility model.
Fig. 2 is the structural representation of the closed condition of ball valve in the utility model.
In figure, be labeled as: 1. valve body, 2. auxiliary valve body, 3. spheroid, 4. valve seat, 5. butterfly spring, 6. force transmitting board, 7. dowel bar, 8. filling tube, 9. filler, 10. Gland, 11. gland nuts, 12. fine-tuning nuts, 13. followers, 14. steel balls, 15. driving wheels, 16. upper valve rods, 17. lower valve rods, 18. valve seat filler packing rings, 19. valve seat fillers, 20. valve seat Glands, 21. spiral lifting bars, 22. spiral lifting bar filling tubes, 23. spiral lifting bar fillers, 24. spiral lifting bar Glands, 25. spiral lifting bar Gland nuts, 26. auxiliary valve body fluid lines, 27. feather keys, 28. positioning baffles.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
The structural representation of opening state of the present utility model as shown in Figure 1, it comprises valve body 1, auxiliary valve body 2, there is the spheroid 3 of runner, valve seat 4, upper valve rod 16, lower valve rod 17, auxiliary valve body fluid line 26, follower 13 is installed on the cylindrical of described auxiliary valve body fluid line 26, the endoporus of its follower 13 has the keyway of sliding axially, its keyway and be installed on the feather key 27 of putting in the keyway of auxiliary valve body fluid line 26 and be the connection that slides axially of sliding axially, the cylindrical of described auxiliary valve body fluid line 26 has outside thread and screws mutually with the internal thread of driving wheel 15, the outside of driving wheel 15 has on the cylindrical that positioning baffle 28 is fixedly mounted on auxiliary valve body fluid line 26, inner side surface and follower 13 outer side surfaces at driving wheel 15 all have corresponding circumferential groove, several the steel balls 14 that are circumferential arrangement are installed between its circumferential groove, utilize steel ball 14 to reduce the frictional force between driving wheel 15 and follower 13, described driving wheel 15 can be along axial direction rotation advance and retreat on the outside thread of auxiliary valve body fluid line 26 under the effect of external force, by pressure actuated device that above-mentioned parts form, inner side surface and the pressure transfer device of the follower 13 in described pressure actuated device join, between the cylindrical of described valve seat 4 and valve body 1, there is valve seat filler forced seal device.
Described pressure transfer device, on the step at valve seat 4 backs, to be equipped with butterfly spring 5, the effect of butterfly spring 5 is stored energies and releases energy, the outside of butterfly spring 5 and force transmitting board 6 join, the outer side surface of force transmitting board 6 joins with several the dowel bars 7 that are circumferential arrangement again, in its dowel bar 7 coaxial, there is thick round bar part and thin round bar part forms, its thick round bar part has the anti-effect that blows out, the cylindrical of its thin round bar part and corresponding number cover filling tubes 8 and the wherein endoporus of the filler of putting 9 match, the outside of its filler 9 has Gland 10, the outside of Gland 10 has gland nut 11, gland nut 11 screws mutually with the outside thread of filling tube 8, promote Gland 10 and compress filler 9 by screwing gland nut 11, make thin round bar part and the filler 9 of dowel bar 7 be motive sealing cooperation, described filling tube 8 is static seal and is installed on auxiliary valve body 2, the thin round bar part of its dowel bar 7 stretches out in outside gland nut 11, the inner side surface that the end of the thin round bar part of dowel bar 7 is equipped with fine-tuning nut 12 and follower 13 joins, the effect of described fine-tuning nut 12 is to make up the size deviation that pressure actuated device and pressure transfer device produce in manufacturing or running, when having fine adjustment function, fine-tuning nut 12 also there is lock function, thereby ensure that the sealing surface of spheroid 3 and valve seat 4 can obtain balanced sealing load in the time of forced seal.
Described valve seat filler forced seal device, that at right angles trapezoidal valve seat filler packing ring 18 of cross section is installed successively from inside to outside between the cylindrical of valve seat 4 and the step hole of valve body 1 and on auxiliary valve body 2, present in cross section, the valve seat Gland 20 of going to the bottom the valve seat filler 19 of parallel arbitrary quadrilateral and matching with the body of valve seat filler 19 surface of contact, combination between them has self-fastening pressure sealing function, the outside of described valve seat Gland 20 has several and is circumferential arrangement and is arranged on the spiral thrust lever arrangement on auxiliary valve body 2, described spiral thrust lever arrangement is a constituent element in valve seat filler forced seal device, its spiral thrust lever arrangement is by spiral thrust bar 21, spiral thrust bar filling tube 22, spiral thrust bar filler 23, spiral thrust bar Gland 24, spiral thrust bar Gland nut 25 forms, wherein in spiral thrust bar 21 coaxial, there is helical thread portion outer end round bar part and pull that body divides and inner round bar part, its helical thread portion matches with female thread portion in spiral thrust bar filling tube 22 on auxiliary valve body 2, its outer end round bar part matches with the endoporus of the spiral thrust bar filler 23 of putting in spiral thrust bar filling tube 22, the outside of spiral thrust bar filler 23 is equipped with spiral thrust bar Gland 24, the outside of spiral thrust bar Gland 24 is equipped with spiral thrust bar Gland nut 25 and screws mutually with the outside thread of spiral thrust bar filling tube 22, promote spiral thrust bar Gland 24 by 25 rotations of spiral thrust bar Gland nut and compress spiral thrust bar filler 23, the outer end round bar part of spiral thrust bar 21 is motive sealing with spiral thrust bar filler 23 and coordinates, it is pulled body and divides and stretch out outside spiral thrust bar Gland nut 25, described thrust round bar part is joined through the outside of force transmitting board 6 and butterfly spring 5 and valve seat Gland 20 in valve pocket, spiral thrust bar filling tube 22 is circumferential arrangement and static seal is arranged on auxiliary valve body 2, described valve seat filler forced seal device, it has adopted a kind of cross section to present, the valve seat filler 19 of parallel arbitrary quadrilateral of going to the bottom has self-fastening pressure sealing function and rotating screw track bar 21 can be to the combination seal mode of valve seat filler 19 forced seals, sealing between valve seat 4 and valve body 1 is ensured reliably, simultaneously by stainless steel, ingot iron, the seal element such as Expanded graphite and macromolecule is applied effectively, greatly expand the using scope of ball valve.
Described filling tube 8 and spiral thrust bar filling tube 22 are interval on the same circumference of auxiliary valve body 2 to be installed, and is static seal.
In the utility model, the opening state of ball valve is mainly manifested in: driving wheel 15 is affixed with positioning baffle, butterfly spring 5 in energy releasing state without distortion.
The closed condition structural representation of ball valve in the utility model as shown in Figure 2, in the utility model, the closed condition of ball valve is mainly manifested in: driving wheel 15 deviates from mutually with positioning baffle 28, butterfly spring 5 produces distortion in energy savings state, butterfly spring 5 energy of deformation that produces extruding valve seat 4, makes to produce seal pressure between valve seat 4 and spheroid 3.
The driving mode of described driving wheel 15 can adopt manually, worm drive, gear transmission, electronic and can realize open and close and forced seal by automation controls such as PLC.
Can be interpreted as " contact " or " connect and touch " between component at " joining " word described in the files such as specification, also having described " interior " " outward " is relative concept, in the time relating to the axial direction of Same Part, taking spheroid 4 as benchmark, taking towards or approach the direction of spheroid 4 or approximated position as " interior ", otherwise be " outward ".
Claims (5)
1. the fixing spherical ball valve of forced seal, it comprises valve body (1), auxiliary valve body (2), there is the spheroid (3) of runner, valve seat (4), upper valve rod (16), lower valve rod (17), auxiliary valve body fluid line (26) is characterized in that: follower (13) is installed on the cylindrical of described auxiliary valve body fluid line (26), the endoporus of its follower (13) has the keyway of sliding axially, its keyway and be installed on the feather key (27) of putting in the keyway of auxiliary valve body fluid line (26) and be the connection that slides axially of sliding axially, the cylindrical of described auxiliary valve body fluid line (26) also has outside thread and screws mutually with the internal thread of driving wheel (15), the outside of driving wheel (15) has positioning baffle (28) and is fixedly mounted on the cylindrical of auxiliary valve body fluid line (26), the inner side surface of driving wheel (15) and follower (13) outer side surface have corresponding circumferential groove, several the steel balls (14) that are circumferential arrangement are installed between its corresponding circumferential groove, described driving wheel (15) can be along axial direction rotation advance and retreat on the outside thread of auxiliary valve body fluid line (26) under the effect of external force, what be made up of above-mentioned parts is pressure actuated device, on the inner chamber of described valve body (1) and auxiliary valve body (2), be equipped with several the dowel bars that are circumferential arrangement and there is motive sealing performance (7), its dowel bar (7) outer end stretches out in outside auxiliary valve body (2), make to be installed on the fine-tuning nut (12) of dowel bar (7) end and the inner side surface of follower (13) joins, the force transmitting board (6) of the inner of dowel bar (7) in valve body (1) and on valve seat (4) step joins, the inner side of force transmitting board (6) is equipped with butterfly spring (5), the shoulder of butterfly spring (5) and valve seat (4) joins, what be made up of above-mentioned parts is pressure transfer device, the pressure that pressure transfer device can produce external pressure actuated device is delivered in valve pocket, make the sealing surface between valve seat (4) and spheroid (3) produce seal pressure, realize forced seal, the fixing spherical ball valve of described forced seal also comprises a valve seat filler forced seal device that can make valve seat filler (19) reach forced seal between valve seat (4) and valve body (1).
2. the fixing spherical ball valve of forced seal according to claim 1 is characterized in that: in dowel bar in described pressure transfer device (7) coaxial, have thick round bar part and thin round bar part forms, the cylindrical of its thin round bar part be static seal and be arranged on filler (9) endoporus of putting in filling tube (8) on auxiliary valve body (2) and filling tube (8) and match, the outside of its filler (9) has Gland (10), the outside of Gland (10) has gland nut (11), gland nut (11) screws mutually with the outside thread of filling tube (8), compress filler (9) by screwing gland nut (11) promotion Gland (10), make thin round bar part and the filler (9) of dowel bar (7) be motive sealing cooperation.
3. the fixing spherical ball valve of forced seal according to claim 1 is characterized in that: described valve seat filler forced seal device, that at right angles trapezoidal valve seat filler packing ring (18) of cross-sectional geometry is installed successively from inside to outside between the cylindrical of valve seat (4) and the step hole of valve body (1) and auxiliary valve body (2), the valve seat Gland (20) that cross-sectional geometry is the valve seat filler (19) of upper base and the parallel arbitrary quadrilateral of going to the bottom and matches with the body of valve seat filler (19) surface of contact, the outside of described valve seat Gland (20) and several the spiral thrust bars (21) that are circumferential arrangement join, described spiral thrust bar (21) has outside thread, coaxial externally threaded two ends also have inner round bar and outer end round bar, the end of described outer end round bar has the body of pulling, its male thread portion and corresponding several are the internal thread that circumferential arrangement static seal be arranged in the spiral thrust bar filling tube (22) on auxiliary valve body (2) and screw mutually, its outer end round bar respectively with spiral thrust bar filling tube (22) in the spiral thrust bar filler (23) put, the endoporus of spiral thrust bar Gland (24) and spiral thrust bar Gland nut (25) matches, spiral thrust bar Gland nut (25) screws mutually with the outside thread of spiral thrust bar filling tube (22), promote spiral thrust bar Gland (24) by spiral thrust bar Gland nut (25) rotation and compress spiral thrust bar filler (23), making the outer end round bar part of spiral thrust bar (21) be motive sealing with spiral thrust bar filler (23) coordinates, it is pulled body and divides and stretch out outside spiral thrust bar Gland nut (25), described inner round bar joins through force transmitting board (6) and the outside of the corresponding circular hole of butterfly spring (5) and valve seat Gland (20) in valve pocket.
4. it is characterized in that according to the fixing spherical ball valve of the forced seal described in claim 1,2,3 any one: described filling tube (8) and spiral thrust bar filling tube (22) are interval and install on the same circumference of auxiliary valve body (2).
5. the fixing spherical ball valve of forced seal according to claim 1 is characterized in that: the driving mode of described driving wheel (15) and upper valve rod (16) can adopt manually, gear transmission, electronic and can realize open and close and forced seal by automation control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420038209.2U CN203686225U (en) | 2014-01-18 | 2014-01-18 | Forced seal fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420038209.2U CN203686225U (en) | 2014-01-18 | 2014-01-18 | Forced seal fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686225U true CN203686225U (en) | 2014-07-02 |
Family
ID=51008125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420038209.2U Expired - Fee Related CN203686225U (en) | 2014-01-18 | 2014-01-18 | Forced seal fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759033A (en) * | 2014-01-18 | 2014-04-30 | 郝思宏 | Forced seal fixed ball valve |
-
2014
- 2014-01-18 CN CN201420038209.2U patent/CN203686225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759033A (en) * | 2014-01-18 | 2014-04-30 | 郝思宏 | Forced seal fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU TRIDE AEROSPACE VALVE CO., LTD. Free format text: FORMER OWNER: HAO SIHONG Effective date: 20150113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 224005 YANCHENG, JIANGSU PROVINCE TO: 224700 YANCHENG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150113 Address after: 224700, Jianhu County, Jiangsu Province Economic Development Zone, Road No. 8 Patentee after: Jiangsu Tride Aerospace Valve Co., Ltd. Address before: 401, room 52, 224005 Salt Road, Jiangsu, Yancheng City Patentee before: Hao Sihong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20190118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |