CN107339456A - A kind of eccentric hard sealed ball valve - Google Patents
A kind of eccentric hard sealed ball valve Download PDFInfo
- Publication number
- CN107339456A CN107339456A CN201710727560.0A CN201710727560A CN107339456A CN 107339456 A CN107339456 A CN 107339456A CN 201710727560 A CN201710727560 A CN 201710727560A CN 107339456 A CN107339456 A CN 107339456A
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- ring
- valve seat
- gasket ring
- 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.)
- Pending
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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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K5/0647—Spindles or actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention discloses a kind of eccentric hard sealed ball valve, and it includes valve body, valve seat, valve ball and valve rod；Valve rod, which rotates, can drive valve ball to switch in valve-opening position and valve-closed position, and the longitudinal center line of valve rod deviates valve body center line；Also include threaded ring, the outer shroud week portion of threaded ring is threadedly coupled ring-side wall in valve body；Gasket ring is provided between valve body and valve seat, gasket ring is sheathed on valve seat periphery, and one end of gasket ring abuts threaded ring end, and the other end abuts valve seat.The eccentric hard sealed ball valve of the present invention can optimize sealing effectiveness, extend life of valve on the basis of abnormal boosting danger is eliminated.
Description
Technical field
The small-bore eccentric half-ball valve technical field the present invention relates in, particularly a kind of eccentric hard sealed ball valve.
Background technology
Double eccentric half ball valve series of valves is applied to oil, chemical industry, controls all departments such as gold, electric power, light textile, papermaking, water conservancy
Mesolow pipe-line system, while apply also for the weak dirty fluid media (medium) such as sewage disposal, steam, air, coal gas, mortar, ore pulp
Conveying and throttling.
At present, conventional metal hard-sealing ball valve is double-valve-seat design, it is difficult to eliminate valve lumen medium because of abnormal boosting
And the problem of safe to use is influenceed, and the design of centering type ball valve single valve seat can solve the danger boosted extremely.
The content of the invention
It is an object of the invention to provide a kind of eccentric hard sealed ball valve, and it can eliminate the dangerous basis of abnormal boosting
On, optimize sealing effectiveness, extend life of valve.
The technical scheme that the present invention takes is：A kind of eccentric hard sealed ball valve, including valve body（8）, valve seat（4）, valve ball and
Valve rod（2）；Valve seat 4 is located at the side of valve ball；Valve rod, which rotates, to drive valve ball to be cut in valve-opening position and valve-closed position
Change, the longitudinal center line of valve rod deviates valve body center line；
Also include threaded ring（7）, threaded ring（7）Outer shroud week portion threaded connection valve body（8）Interior ring-side wall；
Valve body（8）With valve seat（4）Between be provided with gasket ring（5）, gasket ring（5）It is sheathed on valve seat periphery, and sealing gasket
Ring（5）Side abut threaded ring（7）End, opposite side abut valve seat.
In the present invention, the gasket ring for being sealed between valve body and valve seat is fixed by threaded ring, is realized close
Envelope, optimizes sealing effectiveness.
Preferably, threaded ring（7）With gasket ring（5）Between be additionally provided with gasket ring（6）.
Preferably, valve seat（4）One end periphery away from valve body is taper, gasket ring（5）The side for abutting valve seat is cone
Shape, gasket ring（5）Taper surface and valve seat（4）Taper surface fit.
Preferably, valve rod radial section, valve shaft center line along direction of fluid（02）Parallel to valve body center line
（01）.I.e. two center lines are misaligned, realize the eccentric design of ball valve.
Preferably, the hemisphere and ball drive portion, valve rod that valve ball includes mutually being connected are fixedly installed on ball drive portion
It is interior.
Preferably, ball drive portion（11）Pass through bearing pin（3）Be connected valve rod（2）.
Preferably, valve rod（2）Both sides set one to be used to be connected ball drive portion respectively（11）Bearing pin（3）.
Beneficial effect
（1）Present invention utilizes centering type Technology design ball valve, the friction between valve seat and spheroid can be reduced, so as to reduce valve seat
Abrasion；
（2）Valve ball is realized by ball drive portion and valve rod and is connected, and can reduce the moment of torsion of valve, while simplify valve rod and valve
The assembling of ball；
（3）Threaded ring can play a part of being fixed and clamped to gasket ring, ensure the sealing effectiveness between valve body and valve seat；
（4）The design of threaded ring make it that the assembling of ball valve is more convenient, in assembling first by valve ball, valve rod, valve seat and sealing
Gasket ring is installed, then threaded ring is screwed in into valve body, you can plays a part of fixing seal gasket ring.
Brief description of the drawings
Fig. 1 show ball-valve structure schematic diagram of the present invention.
Embodiment
Further described below in conjunction with the drawings and specific embodiments.
As shown in figure 1, the eccentric hard sealed ball valve of the present invention, including valve body 8, valve seat 4, valve ball and valve rod 2；Valve seat 4
In the side of valve ball；Valve rod, which rotates, can drive valve ball to switch in valve-opening position and valve-closed position, in the axial direction of valve rod
Heart line deviates valve body center line；
Also include threaded ring 7, the outer shroud week portion of threaded ring 7 is threadedly coupled ring-side wall in valve body 8；
Gasket ring 5 is provided between valve body 8 and valve seat 4, gasket ring 5 is sheathed on valve seat periphery, and the side of gasket ring 5
The end of threaded ring 7 is abutted, opposite side abuts valve seat.
In the present invention, the gasket ring for being sealed between valve body and valve seat is fixed by threaded ring, is realized close
Envelope, optimizes sealing effectiveness.
Embodiment
In Fig. 1 embodiment, valve seat 4 is located at the upstream side of valve ball.
One end periphery of the valve seat 4 away from valve body is taper, and the side that gasket ring 5 abuts valve seat is taper, gasket ring 5
The taper surface of taper surface and valve seat 4 fit.
Valve rod radial section, along the valve shaft center line 02 of direction of fluid parallel to valve body center line 01.In i.e. two
Heart line is misaligned, realizes the eccentric design of ball valve.When valve rod rotates, valve seat and eccentric semi-spherical spheroid are in a common locus
Upper self-centering, when approaching to turn off, then valve seat and half ball more close the sealing effectiveness for tightlier reaching good, in valve opening
When, valve seat and spheroid can completely disengage, and eliminate the abrasion to valve seat.
Valve ball includes mutually connected hemisphere and ball drive portion, valve rod and is fixedly installed in ball drive portion.Spheroid
Drive division 11 is connected valve rod 2 by bearing pin 3.The both sides of valve rod 2 set a bearing pin 3 for the ball drive portion 11 that is connected respectively.
, need not be to valve ball and valve seat before threaded ring is tightened in addition to valve rod is inserted in ball drive portion and fixed
Other special positioning are carried out, the precision and convenience of assembling can be improved.Gasket ring is additionally provided between threaded ring 7 and gasket ring 5
6.The pretension sealing force of the adjustable valve seat periphery gasket ring 5 of threaded ring design.
In the use of the present invention, forward stream or counter fluid can be mounted to.It is positive（Valve seat and eccentric sphere are flowed through successively
Body）Valve is set to have unlatching trend；Reversely（Eccentric spheroid and valve seat are flowed through successively）, there is closing trend.
During assembling, valve ball is first filled in into valve body out of valve channel, valve rod is inserted to the axle in ball drive portion from top to down
In hole, sphere is adjusted to cavity face（I.e. sphere is not at passage）, the bearing pin 3 prepared in advance is inserted into valve rod and ball drive
In the pin-and-hole set in portion, and each bearing pin in valve rod both sides is set.Then valve seat is put into valve seat slotted eye again, in valve seat overcoat
If gasket ring 5 and pad 6, then threaded ring is screwed in valve body, with compress gasket and gasket ring.It is then inverse in dismounting
Sequence operates.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of eccentric hard sealed ball valve, including valve body（8）, valve seat（4）, valve ball and valve rod（2）；Valve seat（4）Positioned at valve ball
Side；Valve rod, which rotates, can drive valve ball to switch in valve-opening position and valve-closed position, and the longitudinal center line of valve rod deviates
Valve body center line；It is characterized in that：
Also include threaded ring（7）, threaded ring（7）Outer shroud week portion threaded connection valve body（8）Interior ring-side wall；
Valve body（8）With valve seat（4）Between be provided with gasket ring（5）, gasket ring（5）It is sheathed on valve seat periphery, and sealing gasket
Ring（5）One end abut threaded ring（7）End, the other end abut valve seat.
2. eccentric hard sealed ball valve according to claim 1, it is characterized in that, threaded ring（7）With gasket ring（5）Between
It is additionally provided with gasket ring（6）.
3. eccentric hard sealed ball valve according to claim 1, it is characterized in that, valve seat（4）One end periphery away from valve body is
Taper, gasket ring（5）The side for abutting valve seat is taper, gasket ring（5）Taper surface and valve seat（4）Taper surface be affixed
Close.
4. eccentric hard sealed ball valve according to claim 1, it is characterized in that, valve rod radial section, along fluid passage side
To valve shaft center line（02）Parallel to valve body center line（01）.
5. eccentric hard sealed ball valve according to claim 1, it is characterized in that, valve ball includes mutually connected hemisphere（1）
With ball drive portion（11）, valve rod（2）It is fixedly installed on ball drive portion（11）It is interior.
6. eccentric hard sealed ball valve according to claim 5, it is characterized in that, ball drive portion（11）Pass through bearing pin（3）Gu
Even valve rod（2）.
7. eccentric hard sealed ball valve according to claim 6, it is characterized in that, valve rod（2）Both sides set one to be used for respectively
Be connected ball drive portion（11）Bearing pin（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727560.0A CN107339456A (en) | 2017-08-23 | 2017-08-23 | A kind of eccentric hard sealed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727560.0A CN107339456A (en) | 2017-08-23 | 2017-08-23 | A kind of eccentric hard sealed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107339456A true CN107339456A (en) | 2017-11-10 |
Family
ID=60215551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710727560.0A Pending CN107339456A (en) | 2017-08-23 | 2017-08-23 | A kind of eccentric hard sealed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339456A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167467A (en) * | 2018-02-12 | 2018-06-15 | 无锡智能自控工程股份有限公司 | A kind of two way seal ball valve |
| CN109373009A (en) * | 2018-12-20 | 2019-02-22 | 武汉海王科技有限公司 | A kind of naval vessel ball valve limit switch instruction device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201802901U (en) * | 2009-07-19 | 2011-04-20 | 江苏江恒阀业有限公司 | Self-cleaning metal hard sealing ball valve |
| CN202852050U (en) * | 2012-10-21 | 2013-04-03 | 浙江石化阀门有限公司 | Low-temperature eccentric hemisphere ball valve |
| CN204922071U (en) * | 2015-08-18 | 2015-12-30 | 杭州佳能阀门有限公司 | Bivalve seat ball valve sealed firmly |
| CN207122607U (en) * | 2017-08-23 | 2018-03-20 | 昆山维萨阀门有限公司 | A kind of eccentric hard sealed ball valve |
-
2017
- 2017-08-23 CN CN201710727560.0A patent/CN107339456A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201802901U (en) * | 2009-07-19 | 2011-04-20 | 江苏江恒阀业有限公司 | Self-cleaning metal hard sealing ball valve |
| CN202852050U (en) * | 2012-10-21 | 2013-04-03 | 浙江石化阀门有限公司 | Low-temperature eccentric hemisphere ball valve |
| CN204922071U (en) * | 2015-08-18 | 2015-12-30 | 杭州佳能阀门有限公司 | Bivalve seat ball valve sealed firmly |
| CN207122607U (en) * | 2017-08-23 | 2018-03-20 | 昆山维萨阀门有限公司 | A kind of eccentric hard sealed ball valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167467A (en) * | 2018-02-12 | 2018-06-15 | 无锡智能自控工程股份有限公司 | A kind of two way seal ball valve |
| CN109373009A (en) * | 2018-12-20 | 2019-02-22 | 武汉海王科技有限公司 | A kind of naval vessel ball valve limit switch instruction device |
| CN109373009B (en) * | 2018-12-20 | 2023-09-29 | 武汉海王科技有限公司 | Limit switch indicating device for ship ball valve |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171110 |