CN105003677A - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN105003677A CN105003677A CN201510181149.9A CN201510181149A CN105003677A CN 105003677 A CN105003677 A CN 105003677A CN 201510181149 A CN201510181149 A CN 201510181149A CN 105003677 A CN105003677 A CN 105003677A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- sealing
- ball
- spheroid
- 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.)
- Granted
Links
Classifications
-
- 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
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a ball valve. The ball valve comprises a valve body, a ball body, a valve seat, a valve rod and a handle; a fluid through hole is arranged between an inlet and an outlet of the valve body, the ball body is arranged on the valve body to disconnect the fluid through hole, and the ball body rotates around the axis of the valve rod within a quarter circumference scope between the closing state and the opening state; and a dismountable sealing piece is arranged between the ball body and the valve seat, the sealing piece and the ball body are in linear sealing, the bottom of the sealing piece is arranged on the valve seat, and the sealing piece can move along with the valve seat; and a valve seat sleeve is connected with the valve seat, is arranged in the fluid through hole in a movable manner and is used for adjusting the position of the valve seat. According to the ball valve, the position of the sealing piece is adjustable and replaceable, and the valve seat is adjustable, so that the sealing performance of the ball valve is high, and the service life is greatly prolonged.
Description
Technical field
The present invention relates to valve class device field, particularly a kind of ball valve.
Background technique
At present, ball valve is mainly used to make the flow direction cutting off, distribute and change medium in pipeline; Ball valve is little with fluid resistance, structure is simple, the sealing surface of spheroid and valve seat and medium are isolated, passage flat smooth, not easily deposition medium, and be not only applicable to general work medium, but also be applicable to the severe medium of operating conditions, be widely used in each fields such as oil, chemical industry, generating, papermaking, atomic power, aviation, rocket, and in people's daily life.
Shown in Figure 1, existing ball valve generally comprises valve body 10, spheroid 20, valve seat, valve rod 40 and handle, fluid through-hole 50 is provided with between the entrance of valve body and outlet, spheroid is arranged on the interruption of valve body fluid through hole, and spheroid rotates within the scope of the quadrant of valve rod axis in off position and between opening state; Gap is there is between Sealing and spheroid, generally sealed by Sealing 60 between spheroid and valve seat, Sealing is what be fixedly installed, and cannot change, the face that is sealed into sealing now between spheroid and Sealing, when after spheroid displacement, Sealing displacement or sealing part abrasion, ball seal position easily comes off, be shifted, cause malfunctioning switch phenomenon; Now due to the Sealing that cannot regulate the position of Sealing and more renew, then valve seal is easily caused to reduce and shortening in working life.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of sealing is high, the ball valve of long service life.
For achieving the above object, technological scheme of the present invention is as follows:
A kind of ball valve, comprise valve body, spheroid, valve seat, valve rod and handle, be provided with fluid through-hole between the entrance of valve body and outlet, spheroid is arranged on the interruption of valve body fluid through hole, and spheroid rotates within the scope of the quadrant of valve rod axis in off position and between opening state; Leave gap between described spheroid and valve seat, be provided with removable seal in described gap, be linear sealing between described Sealing and spheroid, the bottom of described Sealing is placed on valve seat, and can move with valve seat; Described valve seat connects a valve seat cover, described valve seat cover is movably arranged in fluid through-hole, and for regulating the position of valve seat.
In one embodiment of the invention, described Sealing is graphite seal.
In one embodiment of the invention, be bolted between described valve seat cover and valve seat.
In one embodiment of the invention, be not the connected inwall of one end of described valve seat cover and valve seat is provided with draw-in groove or tapped hole.
By technique scheme, the invention has the beneficial effects as follows:
Sealing position-adjustable in the present invention, and replaceable, which raises sealing and the working life of ball valve; Adjustable valve seat moves for being with dynamic seal, makes Sealing be pressed on ball seal face place all the time, improves sealability.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing ball valve;
Fig. 2 is the structural representation of ball valve of the present invention;
Numeral and the corresponding part title represented by letter in figure:
10, valve body 20, spheroid 30, valve seat 40, valve rod 50, fluid through-hole 60, Sealing 70, valve seat cover 80, bolt.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Shown in Figure 2, the invention discloses a kind of ball valve, comprise valve body 10, spheroid 20, valve seat 30, valve rod 40 and handle, valve rod 40 is connected with spheroid 20, and handle rotates for being with ovable valve stem 40; Be provided with fluid through-hole 50 between the entrance of valve body 10 and outlet, spheroid 20 is arranged on the interruption of valve body fluid through hole 50, and spheroid 20 rotates within the scope of the quadrant of valve rod axis in off position and between opening state; Valve body 10 is once-through structure, which ensure that the mechanical property of bulk material.
Generally all gap is there is between spheroid 20 and valve seat 30, in order to seal the gap between spheroid and valve seat, be provided with removable seal 60 in gap, Sealing 60 is graphite seal, certainly it also can be the Sealing of other well known materials, does not add herein and repeats; Be linear sealing, i.e. dot encapsulation between Sealing 60 and spheroid 20, its good sealing effect; The bottom of Sealing is placed on valve seat 30, and can move with valve seat, and valve seat 30 inwardly motion makes Sealing 60 firmly be pressed on spheroid, thus reaches better sealing effect; Connect a valve seat cover 70 respectively at the two ends of valve seat 30, valve seat cover 70 is movably arranged on the inwall of fluid through-hole, and valve seat cover 70 can be used for regulating the position of valve seat 30; When after sealing part abrasion, it can adopt two kinds of ways to improve sealing; One is arrive sealing effect by changing Sealing; Two is make valve seat promotion Sealing press spheroid by modulating valve cover for seat to arrive sealing effect.
Valve seat cover 70 and valve seat 30 are arranged with tapped hole, and valve seat cover is connected by bolt 80 with between valve seat, its good stability.
Valve seat cover and valve seat be not connected one end inwall on be provided with draw-in groove or tapped hole (not shown in FIG.), when valve seat cover promotes valve seat motion, need the workpiece of outside to be snapped onto the draw-in groove on valve seat cover inwall or tapped hole, workpiece promotes the motion of valve seat cover, valve seat cover promotes valve seat and moves, valve seat pushes sealing to spheroid, thus arrives the effect of sealing; Valve seat and valve seat also can be changed after being enclosed within serious wear.
Ball valve open and close of the present invention resets, not bite, flexible movements, non-internal leakage in using process, leak, respond well; Center deflection is there is not, center excursD, good reliability, fault-free in transmission process; Valve improves working life greatly, and sealability can be regulated by adjustment valve seat.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a ball valve, comprise valve body, spheroid, valve seat, valve rod and handle, be provided with fluid through-hole between the entrance of valve body and outlet, spheroid is arranged on the interruption of valve body fluid through hole, and spheroid rotates within the scope of the quadrant of valve rod axis in off position and between opening state; It is characterized in that: leave gap between described spheroid and valve seat, be provided with removable seal in described gap, be linear sealing between described Sealing and spheroid, the bottom of described Sealing is placed on valve seat, and can move with valve seat; Described valve seat connects a valve seat cover, described valve seat cover is movably arranged in fluid through-hole, and for regulating the position of valve seat.
2. a kind of ball valve according to claim 1, is characterized in that: described Sealing is graphite seal.
3. a kind of ball valve according to claim 1, is characterized in that: be bolted between described valve seat cover and valve seat.
4. a kind of ball valve according to claim 1, is characterized in that: be not the connected inwall of one end of described valve seat cover and valve seat is provided with draw-in groove or tapped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181149.9A CN105003677B (en) | 2015-04-16 | 2015-04-16 | A kind of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181149.9A CN105003677B (en) | 2015-04-16 | 2015-04-16 | A kind of ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105003677A true CN105003677A (en) | 2015-10-28 |
| CN105003677B CN105003677B (en) | 2018-10-26 |
Family
ID=54376465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510181149.9A Expired - Fee Related CN105003677B (en) | 2015-04-16 | 2015-04-16 | A kind of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105003677B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836443U (en) * | 2010-11-12 | 2011-05-18 | 苏州纽威阀门股份有限公司 | Fixed ball valve |
| CN102410381A (en) * | 2011-08-10 | 2012-04-11 | 重庆川仪特种阀门修造有限公司 | Bidirectional hard seal ball valve for coal chemical industry |
| CN203189775U (en) * | 2013-04-03 | 2013-09-11 | 上海双高阀门(集团)有限公司 | Top-loading fixed ball valve |
| CN203656247U (en) * | 2014-01-10 | 2014-06-18 | 苏州纽威阀门股份有限公司 | Top-mounted ball valve |
| CN203963091U (en) * | 2014-07-16 | 2014-11-26 | 苏州纽威阀门股份有限公司 | A kind of top-loading ball valve |
| CN204083335U (en) * | 2014-09-28 | 2015-01-07 | 浙江成高阀门有限公司 | Upper-mounting type ball valve |
| CN104455530A (en) * | 2014-11-25 | 2015-03-25 | 天津百利展发集团有限公司 | Valve seat combination structure easy and convenient to maintain |
| CN204677799U (en) * | 2015-04-16 | 2015-09-30 | 上海联科阀门成套设备有限公司 | A kind of ball valve |
-
2015
- 2015-04-16 CN CN201510181149.9A patent/CN105003677B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836443U (en) * | 2010-11-12 | 2011-05-18 | 苏州纽威阀门股份有限公司 | Fixed ball valve |
| CN102410381A (en) * | 2011-08-10 | 2012-04-11 | 重庆川仪特种阀门修造有限公司 | Bidirectional hard seal ball valve for coal chemical industry |
| CN203189775U (en) * | 2013-04-03 | 2013-09-11 | 上海双高阀门(集团)有限公司 | Top-loading fixed ball valve |
| CN203656247U (en) * | 2014-01-10 | 2014-06-18 | 苏州纽威阀门股份有限公司 | Top-mounted ball valve |
| CN203963091U (en) * | 2014-07-16 | 2014-11-26 | 苏州纽威阀门股份有限公司 | A kind of top-loading ball valve |
| CN204083335U (en) * | 2014-09-28 | 2015-01-07 | 浙江成高阀门有限公司 | Upper-mounting type ball valve |
| CN104455530A (en) * | 2014-11-25 | 2015-03-25 | 天津百利展发集团有限公司 | Valve seat combination structure easy and convenient to maintain |
| CN204677799U (en) * | 2015-04-16 | 2015-09-30 | 上海联科阀门成套设备有限公司 | A kind of ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105003677B (en) | 2018-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20190416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |