CN202402688U - Forced seal ball valve - Google Patents
Forced seal ball valve Download PDFInfo
- Publication number
- CN202402688U CN202402688U CN2011205717309U CN201120571730U CN202402688U CN 202402688 U CN202402688 U CN 202402688U CN 2011205717309 U CN2011205717309 U CN 2011205717309U CN 201120571730 U CN201120571730 U CN 201120571730U CN 202402688 U CN202402688 U CN 202402688U
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- China
- Prior art keywords
- valve
- valve seat
- ball
- seat
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 34
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 17
- 239000010951 brass Substances 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims description 15
- 239000004519 grease Substances 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 abstract description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Abstract
The utility model disclosed a forced seal ball valve, comprising a valve seat, a valve body, a valve rod, a sphere and an executing mechanism, wherein a symmetric surface of a sealing surface of the sphere is provided with a self-cleaning channel to form a three-way structure, the lower surface of the valve rod is processed into a parallel wedge-type surface, the parallel wedge-type surface is matched with balls to produce a wedge force to enforce the sphere to compact the valve seat, so as to realize sealing, the upper surface of the valve rod is provided with a pin hole, a guide pin penetrates through the pin hole, brass bushes are arranged on excircles at the two ends, spiral grooves are symmetrically distributed in front and at back of a support, and the spiral grooves and the brass bushes are coordinated to realize ascending, or descending or rotating of the valve rod. The forced seal ball valve disclosed by the utility model has the advantages that no friction is produced between the valve seat and the sphere when the ball valve is opened and closed, an opening-closing moment is small, the valve seat has no local erosion, and reliable sealing can be realized under the condition of no medium pressure.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of forced seal ball valve.
Background technique
Ball valve is after World War II, and with a kind of all-pass footpath, the rotating valve new varieties of an angle of 90 degrees stroke get into valve market.In the time of over half a century, ball valve has developed into a kind of main valve class, extensively applies to fields such as the energy, oil, chemical industry, metallurgy, play dam, function such as adjusting, distribution.Traditional ball valve has that fluid resistance is little, good seal performance, ball valve passage smooth smooth, be difficult for deposition medium, advantages of simple structure and simple.But there are three subject matters in traditional ball valve: the one, and spheroid contacts with valve seat in opening-closing process all the time, exists the opening and closing frictional force of ball valve big.Frictional force causes the wearing and tearing of sealing material greatly easily, and sealability descends, working life is short, opening and closing effort etc.The 2nd, traditional ball valve can form the through hole of a sub-elliptical in initial unlatching and last pass closed region, and fluid can carry out local erosion to sealing surface of seat because of the formation high flow rate that confluxes, and reduces the sealability of valve greatly.The 3rd, traditional ball valve can be divided into two big types of floating ball fixed valve base ball valve (being called for short the floating ball ball valve) and ball valve with fixed ball and floating valve seat (being called for short fixedly spherical ball valve) with regard to structural principle.The floating ball ball valve is that medium promotes ball, and ball is squeezed in and obtains sealing reliably on the sealing seat, and fixedly the spherical ball valve valve seat floats, and under the effect of medium power, pushes spheroid to and produces a contact stress, to obtain reliable sealing.Therefore above-mentioned two types of ball valves all are to obtain reliable sealing performance through medium, and pressure medium is high more, and sealability is good more.But under the very low operating mode of pressure, valve just is easy to generate leakage problem.
The model utility content
The utility model technical problem to be solved is to provide a kind of ball valve valve seat and spheroid when opening and closing not to have friction, and switch moment is little, and valve seat does not have local erosion, forced seal ball valve that also can reliable sealing under no pressure medium.
In order to solve above technical problem; The utility model provides a kind of forced seal ball valve, comprises blowdown valve, bottom, following lining, valve seat grease pouring valve, valve seat greasing one-way valve, valve seat O type circle, valve seat insert, valve seat, valve body, spheroid, roller, valve rod; Valve gap, filler, spacer ring, valve rod greasing one-way valve, valve rod grease pouring valve, support, axle property back-up ring, guide finger, brass bush and actuator; The symmetry plane of ball seal face is provided with an automatically cleaning passage and forms three-port structure; In the keying campaign of forced seal ball valve; The velocity of medium effect of comprehensive pressure facilitates eddy current to form; Deposition is taken away attached to the granule medium of ball seal face and valve pocket, realized self-cleaning function, it is exactly a cleaning course that the forced seal ball valve opens and closes motion at every turn.Be processed into parallel wedge surface below the valve rod, this parallel wedge surface cooperates with ball, produces wedging power and forces spheroid to compress valve seat realization sealing.Be provided with pin-and-hole above the valve rod, a guide finger is to pinned hole, and its two ends cylindrical is installed brass bush, and symmetry is laid with spiral chute in the front and back of support, and this spiral chute cooperates the rising that realizes valve rod or descends or rotation with brass bush.
Said valve rod is provided with independently urgent sealing channel, comprises valve rod grease pouring valve and valve rod greasing one-way valve, is installed on the outside of valve gap.
Said valve gap and valve body adopt double-screw bolt to fix, and the valve gap inner chamber is provided with filler chamber, assembling filler in the filler chamber; Filler divides two groups up and down; The centre separates with spacer ring, and spacer ring is provided with several apertures and is communicated with the urgent sealing channel of valve rod, guarantees the uniformity of greasing and minimum seal gease consumption.
Said valve seat is provided with independently urgent sealing channel, comprises valve seat grease pouring valve and valve seat greasing one-way valve, is installed on the bottom of valve body.
Said valve seat is the soft seal stack valve seat, or is hard seal valve seat, is applicable to different working condition requirements.Said soft seal stack valve seat comprises valve seat, valve seat O type circle and valve seat insert, and valve seat insert is provided with a plurality of greasing port holes, guarantees the uniformity of greasing and minimum seal gease consumption.The heat that king-size valve seat produces with the valve body argon arc welding time can not influence the sealability of valve seat O type circle and valve seat insert.Sealing surfaces built-up welding one deck cemented carbide face of said hard seal valve seat.
Said valve body adopts goes up dress formula structure, need the forced seal ball valve just not pulled down from pipeline and can change trim easily.
Blowdown valve is installed on the bottom of valve body, and the emissions in the valve pocket is clean; Bottom is used to support spheroid, and following sleeve surface cure process and spheroid lower support are coupling and touch, and reduce friction.
Said ball seal surface overlaying one deck cemented carbide face, the lower support axle of spheroid adopts spheric structure, makes spheroid compress valve seat.
The superior effect of the utility model is:
1) forced seal ball valve valve seat when opening and closing does not contact with spheroid, and valve seat and spheroid can not produce friction, and valve sealing face can not be damaged in operating process, long service life, valve has little torque factor, valve opening with close free and relaxed;
2) the forced seal ball valve is when opening and closing; Valve rod at first promotes spheroid and valve seat moment is disengaged; The runner moment standard-sized sheet or the complete shut-down of forced seal ball valve make the local erosion sealing surface of seat of forced seal ball valve no high-velocity fluid in switching process, improve the sealability of valve;
3) the forced seal ball valve is not to rely on the pressure of medium to realize sealing; But the parallel wedge surface below valve rod cooperates with roller; Generation wedging power is forced spheroid to compress valve seat and is realized sealing; This enforceable mechanical force can guarantee the tightness that valve continues, and realizes long-term zero leakage; Even under the situation of pipe medium pressure or the disappearance of external forced power, this wedging power still can continue to keep the zero leakage of valve;
4) valve base sealing of forced seal ball valve and valve stem seal are equipped with urgent injection seal gease passage; Valve seat and valve rod are equipped with independently greasing mouth, but greasing mouth replace with pressure.
Description of drawings
Fig. 1 is the forced seal ball valve schematic representation of the utility model;
Fig. 2 is the soft seal stack valve seat structural representation of the utility model;
Fig. 3 is the hard seal valve seat structural representation of the utility model;
Label declaration among the figure:
1-blowdown valve; 2-bottom;
3-following lining; 4-valve seat grease pouring valve;
5-valve seat greasing one-way valve; 6-valve seat O type circle;
7-valve seat insert;
8-valve seat; 81-hard seal valve seat;
9-valve body; 10-spheroid;
11-roller; 12-valve rod;
13-valve gap; 14-filler;
15-spacer ring; 16-valve rod greasing one-way valve;
17-valve rod grease pouring valve; 18-support;
19-axle property back-up ring; 20-guide finger;
21-brass bush; 22-actuator.
Embodiment
See also shown in the accompanying drawing, the utility model is done further to describe.
As shown in Figure 1; The utility model provides a kind of forced seal ball valve, comprises blowdown valve 1, bottom 2, following lining 3, valve seat grease pouring valve 4, valve seat greasing one-way valve 5, valve seat O type circle 6, valve seat insert 7, valve seat 8, valve body 9, spheroid 10, roller 11, valve rod 12, valve gap 13, filler 14, spacer ring 15, valve rod greasing one-way valve 16, valve rod grease pouring valve 17, support 18, axle property back-up ring 19, guide finger 20, brass bush 21, actuator 22.The symmetry plane of spheroid 10 sealing surfaces is provided with an automatically cleaning passage and forms three-port structure; In the keying campaign of forced seal ball valve; The velocity of medium effect of comprehensive pressure facilitates eddy current to form; Deposition is taken away attached to the granule medium of ball seal face and valve pocket, realized self-cleaning function, it is exactly a cleaning course that the forced seal ball valve opens and closes motion at every turn.Be processed into parallel wedge surface below the valve rod 12, this parallel wedge surface cooperates with ball 11, produces wedging power and forces spheroid 10 to compress valve seat 8 realization sealings.Be provided with pin-and-hole above the valve rod 12,20 pairs of pinned holes of a guide finger, its two ends cylindrical is installed brass bush 21, and symmetry is laid with spiral chute in the front and back of support 18, and this spiral chute cooperates the rising that realizes valve rod 12 or descends or rotation with brass bush 21.
Said valve rod 12 is provided with independently urgent sealing channel, comprises valve rod grease pouring valve 17 and valve rod greasing one-way valve 16, is installed on the outside of valve gap 13.
Said valve gap 13 adopts double-screw bolt to fix with valve body 9; Valve gap 13 inner chambers are provided with filler chamber; Assembling filler 14 in the filler chamber, filler divides two groups up and down, and the centre separates with spacer ring 15; Spacer ring 15 is provided with several apertures and is communicated with the urgent sealing channel of valve rod 12, guarantees the uniformity of greasing and minimum seal gease consumption.
Said valve seat 8 is provided with independently urgent sealing channel, comprises valve seat grease pouring valve 4 and valve seat greasing one-way valve 5, is installed on the bottom of valve body 9.
Said valve seat is the soft seal stack valve seat, or is hard seal valve seat 81, is applicable to different working condition requirements.As shown in Figure 2, the soft seal stack valve seat comprises valve seat 8, valve seat O type circle 6 and valve seat insert 7, and valve seat insert 7 is provided with a plurality of greasing port holes, guarantees the uniformity of greasing and minimum seal gease consumption.The heat that king-size valve seat 8 produces with valve body 9 argon arc weldings the time can not influence the sealability of valve seat O type circle 6 and valve seat insert 7.As shown in Figure 3, sealing surfaces built-up welding one deck cemented carbide face of hard seal valve seat 81.
Said valve body 9 adopts goes up dress formula structure, need the forced seal ball valve just not pulled down from pipeline and can change trim easily.
Blowdown valve 1 is installed on the bottom of valve body 9, and the emissions in the valve pocket is clean; Bottom 2 is used to support spheroid 10, and following lining 3 surface hardening processing and spheroid lower support are coupling and touch, and reduce friction.
Said spheroid 10 sealing surfaces built-up welding one deck cemented carbide faces, the lower support axle of spheroid 10 adopts spheric structure, makes spheroid 10 compress valve seat 8.
The operating principle of the utility model forced seal ball valve is: guide finger 20 passes the pin-and-hole of valve rod 12, and its two ends cylindrical is installed brass bush 21, and two ends brass bush 21 usefulness axle property back-up ring 19 is fixing, prevents axial float.Rotate counterclockwise actuator 22; Valve rod 12 is risen; This moment, brass bush 21 cooperated with the spiral fluted straight journey section of support 18 front and back symmetry, and 12 of valve rods of restriction are done ascending motion, and valve rod 12 following parallel wedge surface cooperate with roller 11; Make the spheroid 10 first angles that squint left, spheroid 10 breaks away from valve seat 8.Valve rod 12 continues to rise, and brass bush 21 cooperates with the spiral fluted rotation section of support 18 front and back symmetry, and restriction valve rod 12 is done 90 degree rotations, and the parallel wedge surface below the valve rod 12 cooperate with roller 11 and drive spheroid 10 and do 90 and spend nothing and rub and rotate valve opening.On the contrary; Clockwise rotate actuator 22, valve rod 12 is descended, this moment, brass bush 21 cooperated with the spiral fluted rotation section of support 18 front and back symmetry; Restriction valve rod 12 is done 90 degree rotations, and the parallel wedge surface below the valve rod 12 cooperate with roller 11 and drive spheroid 10 and make 90 degree and do not have to rub and rotate.This moment, spheroid 10 sealing surfaces were over against valve seat 8 sealing surfaces; Valve rod 12 continues to descend; Brass bush 21 is done descending motion with 12 of the valve rods of spiral fluted straight journey section restriction of support 18 front and back symmetry, and valve rod 12 following parallel wedge surface cooperate with roller 11, produce wedging power; Drive spheroid 10 and compress valve seat 8, valve closing.Valve rod 12 can continue to descend, and can continue to apply forced seal power to spheroid 10 and valve seat 8 sealing surfaces.
Claims (9)
1. forced seal ball valve; Comprise valve seat, valve body, valve rod, spheroid and actuator, it is characterized in that: the symmetry plane of ball seal face is provided with an automatically cleaning passage and forms three-port structure, is processed into parallel wedge surface below the valve rod; This parallel wedge surface cooperates generation wedging power to force spheroid to compress valve seat realization sealing with ball; Be provided with pin-and-hole above the valve rod, a guide finger is to pinned hole, and its two ends cylindrical is installed brass bush; Symmetry is laid with spiral chute in the front and back of support, and this spiral chute cooperates the rising that realizes valve rod or descends or rotation with brass bush.
2. forced seal ball valve according to claim 1 is characterized in that: said valve rod is provided with independently urgent sealing channel, comprises valve rod grease pouring valve and valve rod greasing one-way valve, is installed on the outside of valve gap.
3. forced seal ball valve according to claim 2; It is characterized in that: said valve gap and valve body adopt double-screw bolt to fix; The valve gap inner chamber is provided with filler chamber, and assembling filler in the filler chamber, filler divide two groups up and down; The centre separates with spacer ring, and spacer ring is provided with several apertures and is communicated with the urgent sealing channel of valve rod.
4. forced seal ball valve according to claim 1 is characterized in that: said valve seat is provided with independently urgent sealing channel, comprises valve seat grease pouring valve and valve seat greasing one-way valve, is installed on the bottom of valve body.
5. according to claim 1 or 4 described forced seal ball valves, it is characterized in that: said valve seat is the soft seal stack valve seat, or is hard seal valve seat.
6. forced seal ball valve according to claim 5 is characterized in that: said soft seal stack valve seat, comprise valve seat, valve seat O type circle and valve seat insert, and valve seat insert is provided with a plurality of greasing port holes, and valve seat is an extended type.
7. forced seal ball valve according to claim 5 is characterized in that: sealing surfaces built-up welding one deck cemented carbide face of said hard seal valve seat.
8. forced seal ball valve according to claim 1 is characterized in that: said valve body adopts goes up dress formula structure.
9. forced seal ball valve according to claim 1 is characterized in that: said ball seal surface overlaying one deck cemented carbide face, the lower support axle of spheroid adopts spheric structure, makes spheroid compress valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205717309U CN202402688U (en) | 2011-12-31 | 2011-12-31 | Forced seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205717309U CN202402688U (en) | 2011-12-31 | 2011-12-31 | Forced seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402688U true CN202402688U (en) | 2012-08-29 |
Family
ID=46700337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205717309U Expired - Fee Related CN202402688U (en) | 2011-12-31 | 2011-12-31 | Forced seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402688U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855133A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of New forced seal ball-valve |
| CN106855134A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of spheroid of ball valve |
| CN107035906A (en) * | 2017-01-17 | 2017-08-11 | 吉林省众鑫汽车装备有限公司 | A kind of automatically cleaning fluid flow directional control valve |
| CN107044546A (en) * | 2017-06-01 | 2017-08-15 | 精工阀门有限公司 | Hard seal ball valve |
| CN107387805A (en) * | 2017-08-30 | 2017-11-24 | 刘晓琦 | A kind of forced seal ball valve and its valve ball height adjustment mechanism |
| WO2017202151A1 (en) * | 2016-05-26 | 2017-11-30 | 刘晓琦 | Forced seal ball valve |
| WO2018210037A1 (en) * | 2017-05-19 | 2018-11-22 | 江苏神通阀门股份有限公司 | Ball valve with micro torque |
| CN112728151A (en) * | 2020-12-31 | 2021-04-30 | 五洲阀门股份有限公司 | Ball valve with multiple sealing track structure |
-
2011
- 2011-12-31 CN CN2011205717309U patent/CN202402688U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855133A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of New forced seal ball-valve |
| CN106855134A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of spheroid of ball valve |
| WO2017202151A1 (en) * | 2016-05-26 | 2017-11-30 | 刘晓琦 | Forced seal ball valve |
| CN107035906A (en) * | 2017-01-17 | 2017-08-11 | 吉林省众鑫汽车装备有限公司 | A kind of automatically cleaning fluid flow directional control valve |
| CN107035906B (en) * | 2017-01-17 | 2024-01-23 | 科林蓝泰环境科技(长春)有限公司 | Self-cleaning fluid flow direction control valve |
| WO2018210037A1 (en) * | 2017-05-19 | 2018-11-22 | 江苏神通阀门股份有限公司 | Ball valve with micro torque |
| CN107044546A (en) * | 2017-06-01 | 2017-08-15 | 精工阀门有限公司 | Hard seal ball valve |
| CN107387805A (en) * | 2017-08-30 | 2017-11-24 | 刘晓琦 | A kind of forced seal ball valve and its valve ball height adjustment mechanism |
| CN112728151A (en) * | 2020-12-31 | 2021-04-30 | 五洲阀门股份有限公司 | Ball valve with multiple sealing track structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201416 Shanghai city Fengxian District Zhelin Town Village Road No. 199 Patentee after: SHK VALVE GROUP CO., LTD. Address before: 201416 Shanghai city Fengxian District Zhelin Town Village Road No. 199 Patentee before: Shanghai SHK Valve Group Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161215 Address after: 201416 Shanghai city Fengxian District Zhelin Town Village Road No. 138 building 4 Patentee after: Shanghai Shengweixi Valve Co., Ltd. Address before: 201416 Shanghai city Fengxian District Zhelin Town Village Road No. 199 Patentee before: SHK VALVE GROUP CO., LTD. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20181008 Address after: 201416 199 North Village Road, Zhelin Town, Fengxian District, Shanghai Patentee after: SHK VALVE GROUP CO., LTD. Address before: 201416 4 4 North Village Road, Zhelin Town, Fengxian District, Shanghai Patentee before: Shanghai Shengweixi Valve Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190821 Granted publication date: 20120829 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211231 Granted publication date: 20120829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20201231 |