CN205978574U - High -and medium -voltage hangs down fixed ball valve of moment of torsion - Google Patents
High -and medium -voltage hangs down fixed ball valve of moment of torsion Download PDFInfo
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- CN205978574U CN205978574U CN201620932151.5U CN201620932151U CN205978574U CN 205978574 U CN205978574 U CN 205978574U CN 201620932151 U CN201620932151 U CN 201620932151U CN 205978574 U CN205978574 U CN 205978574U
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Abstract
The utility model relates to a high -and medium -voltage hangs down fixed ball valve of moment of torsion, including valve body, disk seat, spheroid, valve rod, the spheroid up end is equipped with backup pad and bottom suspension fagging respectively with lower terminal surface, being equipped with on the disk seat to store up to press the room, being equipped with in the valve body to annotate and pressing valve and relief valve, notes press valve outlet chamber and relief valve import chamber to pass through pressure passage and store up pressure room intercommunication, annotate and press valve import chamber and annotate and press the passageway intercommunication, and relief valve outlet chamber and pressure releasing pathway communicate, set up between relief valve outlet chamber and valve rod and store up to press room pressure control device, press room pressure control device to press the room to annotate to press or the pressure release, remove, press room injection pressure to storing up earlier when valve open, make the valve seat seal face leave the spheroid, will store up and press the room pressure release, realize low moment of torsion, zero friction and open and close to storing up about control valve seat after the valve is closed through storing up, have that little, the sealed face wearing and tearing of opening and closing torque are little, sealing performance reliable, a product long service life, characteristics such as with low costs. Be applicable to height, middling pressure medium operating mode.
Description
Technical field
This utility model belongs to valve field, especially with regard to a kind of Fixed ball valve.This utility model be applied to height,
Pressure mixture condition.
Background technology
Fixed ball valve is made up of valve body, valve seat, spheroid, valve rod, and spheroid upper surface is connected with valve rod, spheroid lower end mask
There is the locating shaft concentric with valve rod, this locating shaft moves cooperation with the location hole on valve body, constitutes the fixed attachment structure of spheroid, valve
Seat is installed on valve body and imports and exports passway, cooperates with ball seal face, promotes spheroid and seat compression using pressure medium
Sealing.Its major defect is that between spheroid and valve seat, frictional force is larger in opening-closing process, and open and close torque is big, sealing surface wear
Greatly, after life-time service, sealing property declines, and product service life is short.And need to configure larger driving means, product cost
High.
Content of the invention
The purpose of this utility model is the shortcoming existing for prior art, provides a kind of opening-closing process spheroid and valve seat phase
Mutually depart from, frictional force is little, sealing surface wear is little, moment of torsion is low, sealing property is reliable, long product lifecycle, product cost are low
High pressure low torque Fixed ball valve.
The technical solution of the utility model includes valve body, valve seat, spheroid, valve rod, and spheroid upper surface and lower surface set respectively
There are upper backup pad and lower supporting plate；Mainly valve seat is provided with storage pressure chamber, this storage pressure chamber by valve body, valve seat, storage pressure ring three it
Between the pressure chamber composition that constitutes, inner round wall and valve seat the first external cylindrical surface dynamic sealing of storage pressure ring coordinate, the periphery of storage pressure ring
With the cooperation of valve body inner round wall static seal, valve seat second external cylindrical surface and the cooperation of valve body inner bore wall dynamic sealing, valve seat first outside cylinder
There is between face and the second external cylindrical surface radial direction step, the table top of this radial direction step constitutes storage pressure chamber with an end face of storage pressure ring
Two side, the annulus area of radial direction step contacts the annulus area of end face more than the valve seat back side with medium；It is provided with note in valve body
Pressure valve and relief valve, injection pressure valve outlet port chamber and relief valve snout cavity are connected with storage pressure chamber by pressure channel, injection pressure valve snout cavity
With injection pressure channel connection, relief valve outlet plenum connected with pressure release passage；The valve element of injection pressure valve adopts slot type piston valve core, described groove
Formula piston valve core is made up of plunger and piston rod, and plunger external cylindrical surface is uniformly formed with axial groove, and plunger is cylindrical
Cylinder moves cooperation with injection pressure piston cylinder internal chamber wall, installs between the end face of plunger one end and injection pressure piston cylinder import inner face
Spring, the end face center of the plunger other end is fixedly connected with one end of piston rod, the plunger end outside piston rod
Face is provided with and exports, with injection pressure piston cylinder, the sealing surface that inner face cooperates, and the other end of piston rod extend into pressure release valve outlet port
Intracavity；Between relief valve outlet plenum and valve rod setting storage pressure chamber pressure control device, described storage pressure chamber pressure control device by
Push rod, guide pad and jacking block composition, have between the periphery of push rod one end and relief valve outlet plenum internal chamber wall piston type move close
Envelope fit structure, push rod periphery moves cooperation with the pilot hole of guide pad, and guide pad is fixedly mounted on the upper plane of upper backup pad
Interior, the push rod other end is contacted with the jacking block being fixedly mounted on valve rod；Jacking block periphery is the face of cylinder, right on jacking block external cylindrical surface
Position is claimed to be formed with two axial arc grooves, this arc groove is alignd with push rod in spheroid full off state, enters in push rod one end
When entering in the arc groove on jacking block external cylindrical surface, between having between its other end periphery and relief valve outlet plenum internal chamber wall
Gap；Valve rod lower end is cooperated with the axial keyway of sphere installation in the hole wall using axial flat key and is connected, axial keyway circular arc side
It is more than the width of axial flat key to width.
Preferably, between push rod periphery and relief valve outlet plenum internal chamber wall, there is the taper seat cooperating.
Preferably, valve seat is provided with greasing annular seal space, this greasing annular seal space and injection pressure channel connection.
The utility model has the advantages that valve seat is provided with storage pressure chamber, by storage pressure chamber injection pressure or pressure release, control valve seat
Move left and right, in valve opening first to storage pressure chamber injection pressure, make sealing surface of seat leave spheroid, by storage pressure after valve closing
Room pressure release, realizes low torque, no friction opens and closes, and has that open and close torque is little, sealing surface wear is little, sealing property is reliable, product makes
The features such as with life-span length, low cost.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial structurtes enlarged drawing at I in this utility model Fig. 1.
1 valve body, 2 valve seats, 3 spheroids, 4 valve rods, 5 upper backup pads, 6 lower supporting plates, 7 storage pressure chambers, 8 storage pressure rings, 9 radial direction platforms
Rank, 10 pressure channels, 11 injection pressure passages, 12 pressure release passages, 13 plungers, 14 injection pressure piston cylinders, 15 springs, 16 piston rods,
17 relief valve outlet plenums, 18 push rods, 19 guide pads, 20 jacking blocks, 21 greasing annular seal spaces.
Specific embodiment
High pressure low torque Fixed ball valve as shown in Figure 1, including valve body 1, valve seat 2, spheroid 3, valve rod 4, on spheroid 3
End face and lower surface are respectively equipped with upper backup pad 5 and lower supporting plate 6, and valve body 1 adopts left valve barrel, middle valve body, right valve barrel by bolt
Connect composition；Valve seat 2 is provided with storage pressure chamber 7, and this storage pressure chamber 7 is by the pressure constituting between valve body 1, valve seat 2, storage pressure ring 8 three
Chamber composition, the inner round wall of storage pressure ring 8 and valve seat 2 first external cylindrical surface dynamic sealing coordinate, in the periphery and valve body 1 of storage pressure ring 8
Circle wall static seal cooperation, valve seat 2 second external cylindrical surface is coordinated with valve body 1 inner hole wall dynamic sealing, so that valve seat 2 can be moved axially,
Between valve seat 2 first external cylindrical surface and the second external cylindrical surface, there is radial direction step 9, the table top of this radial direction step 9 and storage pressure ring 8
End face constitutes the two side of storage pressure chamber 7, and valve body 1 internal chamber wall and valve seat 2 first external cylindrical surface are upper cavity wall and the cavity of resorption storing up pressure chamber 7
Wall, the annulus area of radial direction step 9 contacts the annulus area of end face it is ensured that storing up Jie in pressure chamber 7 more than valve seat 2 back side with medium
The thrust that confrontation radial direction step 9 produces is more than the thrust that in valve body 1 passage, medium produces to valve seat 2 end face；It is provided with note in valve body 1
Pressure valve and relief valve, injection pressure valve outlet port chamber and relief valve snout cavity are passed through pressure channel 10 and are connected with storage pressure chamber 7, injection pressure valve import
Chamber is connected with injection pressure passage 11, and relief valve outlet plenum 17 is connected with pressure release passage 12；The valve element of injection pressure valve adopts slot type piston valve
Core, described slot type piston valve core is made up of plunger 13 and piston rod 16, and plunger 13 external cylindrical surface is uniformly formed with axial direction
Groove, this axial groove connects the left side of plunger 13 and right side, makes the medium in injection pressure passage 11 can be from plunger
Pass through between 13 and injection pressure piston cylinder 14 internal chamber wall, plunger 13 external cylindrical surface moves cooperation with injection pressure piston cylinder 14 internal chamber wall,
Between the end face of plunger 13 one end and injection pressure piston cylinder 14 import inner face, spring 15 is installed, plunger 13 other end
End face center is fixedly connected with one end of piston rod 16, is provided with and lives with injection pressure on plunger 13 end face in piston rod 16 outside
Plug cylinder 14 exports the sealing surface that inner face cooperates, and the other end of piston rod 16 extend in relief valve outlet plenum 17, piston
Bar 16 periphery has the runner of connection pressure channel 10 and relief valve outlet plenum 17 and injection pressure piston cylinder 14 inner chamber；In relief valve
Setting storage pressure chamber pressure control device between outlet plenum 17 and valve rod 4, described storage pressure chamber pressure control device is by push rod 18, guiding
Block 19 and jacking block 20 form, and have piston type dynamic sealing between the periphery of push rod 18 one end and relief valve outlet plenum 17 internal chamber wall
Fit structure, push rod 18 middle part periphery moves cooperation with the pilot hole of guide pad 19, and push rod 18 radial positioning is arranged on guiding
In block 19, guide pad 19 is fixedly mounted in the upper plane of upper backup pad 5, push rod 18 other end be fixedly mounted on valve rod 4
Jacking block 20 contact, as shown in Figure 2；Jacking block 20 periphery is the face of cylinder, and on jacking block 20 external cylindrical surface, symmetric position is formed with two
Axial arc groove, that is, jacking block 20 is disc structure, and on the periphery at disk same diameter two ends, each manufacture axial direction circular arc is recessed
Groove, this arc groove is alignd with push rod 18 in spheroid 3 full off state, that is, when spheroid 3 is with valve seat 2 closed mode, push rod 18
End enter jacking block 20 arc groove in, push rod 18 one end enter jacking block 20 arc groove in when, push rod 18 is another
Between end periphery and relief valve outlet plenum 17 internal chamber wall, there is gap, now relief valve is in opening, in storage pressure chamber 7
Pressure medium is released by pressure channel 10, relief valve outlet plenum 17, pressure release passage 12, and valve seat 2 and spheroid 3 compression sealing are joined
Close, meanwhile, valve element moves under spring 15 effect, so that plunger 13 is joined with the sealing of injection pressure piston cylinder 14 outlet side internal chamber wall
Close, the medium channel between cut-out storage pressure chamber 7 and injection pressure passage 11；In the hole is installed using axial flat key and spheroid 3 in valve rod 4 lower end
The axial keyway of wall cooperates connection, and axial keyway circular arc direction width is more than the width of axial flat key, at the beginning of valve opening
Phase, the axial flat key on valve rod 4 is installed in the axial keyway of in the hole in spheroid 3 and is rotated, and is that valve rod 4 drives jacking block 20 opposing spheres
3 one angle of rotation, one end of push rod 18 skids off in the arc groove of jacking block 20, and jacking block 20 promotes push rod 18 mobile, push rod
The periphery insertion relief valve outlet plenum 17 internal chamber wall sealing cooperation of 18 other ends, relief valve cuts out, meanwhile, push rod 18 promotes
Piston rod 16 overcomes the elastic force of spring 15 to make plunger 13 leave injection pressure piston cylinder 14 outlet side internal chamber wall, and injection pressure valve is opened
Open, injection pressure passage 11 medium passes through pressure channel 10 and enters in storage pressure chamber 7, makes valve seat 2 sealing surface depart from spheroid 3 sealing surface, continues
During continuous rotary valve rod 4, on valve rod 4, the end face of axial flat key direction of rotation is connect with the loading end of axial keyway in spheroid 3 installing hole
Touch, drive spheroid 3 to rotate it is achieved that no friction opens and closes between spheroid 3 and valve seat 2.The radial depth of jacking block 20 arc groove, root
Enter according to push rod 18 end and during jacking block 20 arc groove, ensure that relief valve is opened, injection pressure valve cuts out, and push rod 18 end skids off top
Ensure the requirement setting that relief valve cuts out, injection pressure valve is opened during block 20 arc groove.On valve rod 4, axial flat key is installed with spheroid 3
The stand out of in the hole axial keyway, it is ensured that push rod 18 is sliding in jacking block 20 arc groove when dallying according to valve rod 4 opposing spheres 3
The requirement setting going out.Relief valve outlet plenum 17 and injection pressure piston cylinder 14 can form it is also possible in valve body directly to manufacture on valve body 1
The pressure relief valve body being formed with relief valve outlet plenum 17 is installed in 1 and is formed with injection pressure piston cylinder 14 injection pressure valve body composition.
Between push rod 18 periphery and relief valve outlet plenum 17 internal chamber wall, there is the taper seat cooperating, that is, relief valve goes out
Oral cavity 17 internal chamber wall makes horn mouth and push rod 18 one end outer conical surface, improves when push rod 18 moves and in relief valve outlet plenum 17
The reliability that cavity wall cooperates.
Valve seat 2 is provided with greasing annular seal space 21, and this greasing annular seal space 21 is connected with injection pressure passage 11, in valve seat 2 and spheroid 3
Increase greasing sealing during sealing mated condition.
Claims (3)
1. a kind of high pressure low torque Fixed ball valve, including valve body (1), valve seat (2), spheroid (3), valve rod (4), spheroid (3)
Upper surface and lower surface are respectively equipped with upper backup pad (5) and lower supporting plate (6)；It is characterized in that valve seat (2) is provided with storage pressure chamber
(7), this storage pressure chamber (7) is made up of the pressure chamber constituting between valve body (1), valve seat (2), storage pressure ring (8) three, storage pressure ring (8)
Inner round wall and valve seat (2) first external cylindrical surface dynamic sealing coordinate, the periphery of storage pressure ring (8) is quiet close with valve body (1) inner round wall
Envelope cooperation, valve seat (2) second external cylindrical surface is coordinated with valve body (1) inner hole wall dynamic sealing, valve seat (2) first external cylindrical surface and second
There is between external cylindrical surface radial direction step (9), the table top of this radial direction step (9) constitutes storage pressure chamber (7) with the end face of storage pressure ring (8)
Two side, valve body (1) internal chamber wall and valve seat (2) first external cylindrical surface constitute the upper cavity wall of storage pressure chamber (7) and lower cavity wall, radially
The annulus area of step (9) contacts the annulus area of end face more than valve seat (2) back side with medium；Valve body is provided with injection pressure valve in (1)
And relief valve, injection pressure valve outlet port chamber and relief valve snout cavity pass through pressure channel (10) and connect with storing up pressure chamber (7), injection pressure valve import
Chamber is connected with injection pressure passage (11), and relief valve outlet plenum (17) is connected with pressure release passage (12)；The valve element of injection pressure valve adopts slot type
Piston valve core, described slot type piston valve core is made up of plunger (13) and piston rod (16), plunger (13) external cylindrical surface
Uniformly it is formed with axial groove, this axial groove connects left side and the right side of plunger (13), plunger (13) external cylindrical surface
Move cooperation, the end face of plunger (13) one end and injection pressure piston cylinder (14) import inner face with injection pressure piston cylinder (14) internal chamber wall
Between spring (15) is installed, the end face center of plunger (13) other end is fixedly connected with one end of piston rod (16), living
Plunger (13) end face outside stopper rod (16) is provided with close with what injection pressure piston cylinder (14) outlet side inner face cooperated
Front cover, the other end of piston rod (16) extend in relief valve outlet plenum (17), and piston rod (16) periphery has connection pressure
Passage (10) and the runner of relief valve outlet plenum (17) and injection pressure piston cylinder (14) inner chamber；In relief valve outlet plenum (17) and valve rod
(4) between setting storage pressure chamber pressure control device, described storage pressure chamber pressure control device by push rod (18), guide pad (19) and
Jacking block (20) forms, and adopts piston type dynamic sealing between the periphery of push rod (18) one end and relief valve outlet plenum (17) internal chamber wall
Fit structure, in the middle part of push rod (18), periphery and the pilot hole of guide pad (19) move cooperation, and guide pad (19) is fixedly mounted on
In the upper plane of gripper shoe (5), push rod (18) other end is contacted with the jacking block (20) being fixedly mounted on valve rod (4)；Jacking block
(20) periphery is the face of cylinder, and on jacking block (20) external cylindrical surface, symmetric position is formed with two axial arc grooves, this arc groove
Align with push rod (18) in spheroid (3) full off state, when push rod (18) one end enters in the arc groove of jacking block (20), top
Between bar (18) other end periphery and relief valve outlet plenum (17) internal chamber wall, there is gap；Valve rod (4) lower end is using axially flat
Key is cooperated with the axial keyway of spheroid (3) installing hole inwall and is connected, and axial keyway circular arc direction width is more than axial flat key
Width.
2. high pressure low torque Fixed ball valve according to claim 1, is characterized in that push rod (18) periphery and pressure release
Between valve outlet port chamber (17) internal chamber wall, there is the taper seat cooperating.
3. high pressure low torque Fixed ball valve according to claim 1 and 2, is characterized in that valve seat (2) is provided with greasing
Annular seal space (21), this greasing annular seal space (21) is connected with injection pressure passage (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932151.5U CN205978574U (en) | 2016-08-18 | 2016-08-18 | High -and medium -voltage hangs down fixed ball valve of moment of torsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932151.5U CN205978574U (en) | 2016-08-18 | 2016-08-18 | High -and medium -voltage hangs down fixed ball valve of moment of torsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978574U true CN205978574U (en) | 2017-02-22 |
Family
ID=58032847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620932151.5U Active CN205978574U (en) | 2016-08-18 | 2016-08-18 | High -and medium -voltage hangs down fixed ball valve of moment of torsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978574U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131317A (en) * | 2017-06-02 | 2017-09-05 | 永嘉县信诚科技服务有限公司 | High-temperature wearable metal sealing electric-controlled ball valve |
| CN107131316A (en) * | 2017-06-02 | 2017-09-05 | 永嘉县信诚科技服务有限公司 | Double-valve-seat is without friction electric-controlled ball valve |
| CN107255173A (en) * | 2017-06-02 | 2017-10-17 | 永嘉县信诚科技服务有限公司 | Automatically controlled plug valve |
| CN111022691A (en) * | 2019-12-05 | 2020-04-17 | 良正阀门有限公司 | Fixed ball valve and monitoring system, opening and closing method thereof and monitoring method of monitoring system |
| CN112303277A (en) * | 2020-11-23 | 2021-02-02 | 成都威登阀门技术有限公司 | Low-temperature fixed ball valve |
-
2016
- 2016-08-18 CN CN201620932151.5U patent/CN205978574U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131317A (en) * | 2017-06-02 | 2017-09-05 | 永嘉县信诚科技服务有限公司 | High-temperature wearable metal sealing electric-controlled ball valve |
| CN107131316A (en) * | 2017-06-02 | 2017-09-05 | 永嘉县信诚科技服务有限公司 | Double-valve-seat is without friction electric-controlled ball valve |
| CN107255173A (en) * | 2017-06-02 | 2017-10-17 | 永嘉县信诚科技服务有限公司 | Automatically controlled plug valve |
| CN107131316B (en) * | 2017-06-02 | 2018-10-30 | 永嘉县信诚科技服务有限公司 | Double-valve-seat is without friction electric-controlled ball valve |
| CN111022691A (en) * | 2019-12-05 | 2020-04-17 | 良正阀门有限公司 | Fixed ball valve and monitoring system, opening and closing method thereof and monitoring method of monitoring system |
| CN112303277A (en) * | 2020-11-23 | 2021-02-02 | 成都威登阀门技术有限公司 | Low-temperature fixed ball valve |
| CN112303277B (en) * | 2020-11-23 | 2021-10-08 | 成都威登阀门技术有限公司 | Low-temperature fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230615 Address after: 323908 Hongguang Industrial Zone, Dongyuan Town, Qingtian County, Lishui City, Zhejiang Province Patentee after: Zhejiang Shuangke Valve Co.,Ltd. Address before: 325102 Dongbei Industrial Zone, Oubei, Yongjia, Wenzhou, Zhejiang Patentee before: KOFLOW VALVE GROUP CO.,LTD. |