CN106895171A - Sealing property ball valve high - Google Patents
Sealing property ball valve high Download PDFInfo
- Publication number
- CN106895171A CN106895171A CN201510967401.9A CN201510967401A CN106895171A CN 106895171 A CN106895171 A CN 106895171A CN 201510967401 A CN201510967401 A CN 201510967401A CN 106895171 A CN106895171 A CN 106895171A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve barrel
- barrel
- spheroid
- sealing property
- 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
Links
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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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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
Abstract
Sealing property ball valve high, it is related to valve technology field；It includes spheroid, left valve barrel, valve rod, upper fixing axle, right valve barrel, weld seam, lower rotary shaft, valve seat；Described left valve barrel is connected with right valve barrel using welded type, and forms weld seam；Described left valve barrel is internally provided with spheroid with right valve barrel；The top of described spheroid, left valve barrel and right valve barrel top junction are provided with fixing axle, and valve rod is inserted with upper fixing axle；The bottom of described spheroid is provided with lower rotary shaft；Between described spheroid and left valve barrel and spheroid and right valve barrel between be provided with valve seat；Described left valve barrel forms elliptical shape with right valve barrel.Sealing property of the present invention ball valve high, good sealing effect, long service life, the present invention has the advantages that simple structure, sets reasonable, low manufacture cost.
Description
Technical field
The present invention relates to valve technology field, and in particular to sealing property ball valve high.
Background technology
In China, ball valve is widely used in industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steels, and very important status is occupied in national economy.It has the action being rotated by 90 °, and faucet body is spheroid, has manhole or passage to pass through its axis.
Bolt connection ball valve valve body in assembling process can be dismantled repeatedly, easy to assembly, be conducive to valve seat insert to compress the adjustment of surplus, and consumable accessory can be changed, so that the yield rate that valve is manufactured is higher.But, the leak source that leaks of bolt connection ball valve is more, in design except consideration valve body wall thickness must is fulfilled in addition to the intensity requirement under design pressure, it is also contemplated that connecting bolt is in design（Or operation）The rigidity requirement of pressure and the gasket seal intensity requirement more lower than pressure effect and valve body adpting flange so that valve body bonnet volume increases, cause valve volume greatly, quality weight, the cost of raw material is high.In valve process, the surfaces externally and internally of valve body and two ends are required for processing, and manufacturing procedure is numerous and diverse, increased processing cost.
Because the cylindrical shape main valve body for being welded to connect ball valve cannot reduce with left and right valve body adpting flange, so its volume, quality and the cost of raw material are similar to the volume of bolt fastening structure ball valve.In valve process, the surfaces externally and internally of valve body and two ends are required to processing, and especially the requirement on machining accuracy of bottom plate is very high on spheroid, and difficulty is big, and manufacturing procedure is numerous and diverse, makes processing cost higher.Two weld seams of valve body welding are closer to the distance from seat ring, and easily conduction, to seat ring position, makes valve seat insert and the easy scaling loss of O-ring or deformation to the high temperature produced during welding, and causes valves leakage.In addition, welding makes the welding stress that valve is produced, easily it is deformed valve body, when deformation causes seat ring jam, then cannot seals.Therefore the welded ball valve manufacture difficulty of three bodies is big.Can not be dismantled after valve body welding in assembling process, valve seat insert is compressed surplus cannot adjust, and sealing effectiveness is difficult to control to, and required precision is high to manufacture valve, and yield rate is low.
The content of the invention
Defect and deficiency it is an object of the invention to be directed to prior art, there is provided a kind of simple structure, sealing property reasonable in design, easy to use ball valve high.
To achieve the above object, the technical solution adopted by the present invention is：It includes spheroid, left valve barrel, valve rod, upper fixing axle, right valve barrel, weld seam, lower rotary shaft, valve seat；Described left valve barrel is connected with right valve barrel using welded type, and forms weld seam；Described left valve barrel is internally provided with spheroid with right valve barrel；The top of described spheroid, left valve barrel and right valve barrel top junction are provided with fixing axle, and valve rod is inserted with upper fixing axle；The bottom of described spheroid is provided with lower rotary shaft；Between described spheroid and left valve barrel and spheroid and right valve barrel between be provided with valve seat；Described left valve barrel forms elliptical shape with right valve barrel.
Preferably, be connected between described valve seat and left valve barrel and between valve seat and right valve barrel on spring, and left valve barrel and right valve barrel being arranged with O-ring；Described valve seat is provided with seal groove with spheroid contact position, and sealing ring is provided with seal groove.
Preferably, described weld seam is used once being welded.
Preferably, described sealing ring is polyether-ether-ketone sealing ring.
Operation principle of the invention is：Using left valve barrel and right valve barrel welding manner, in centre, away from potted component, wall thickness reduces 13%~35% to weld seam, and total quality mitigates 30%~40% compared with ball valve；Because oval valve body maximum body lumen wall is thick close with the wall thickness at its entrance end runner position, consider further that runner position needs the factor of machining, oval valve body can carry out the casting or forging and stamping of blank with same wall thickness in actual production, not only simplify mould, because the local stress that Wall-Thickness Difference causes reduces during making rough-cast or forging and pressing, the yield rate of rough-cast or forging and stamping is also improved；Left valve barrel and the welding ball valve weld pitch seat ring of two half elliptic valve body butt welding of right valve barrel are farther out, high temperature can be controlled in welding process can not be conducted to seating position, it is smaller to O-ring and sealing ring heat affecting, valve seat insert and O-ring will not be made to burn out or deform and cause valves leakage.Due to welding seam distance seat ring farther out, welding stress causes the limited deformation at valve body and valve seat position, will not cause seat ring jam and cannot seal.
After said structure, what the present invention was produced has the beneficial effect that：Sealing property of the present invention ball valve high, good sealing effect, long service life, the present invention has the advantages that simple structure, sets reasonable, low manufacture cost.
Brief description of the drawings
Fig. 1 is structure chart of the present invention；
Fig. 2 is valve base sealing structure figure of the present invention.
Description of reference numerals：
1st, spheroid；2nd, left valve barrel；3rd, valve rod；4th, upper fixing axle；5th, right valve barrel；6th, weld seam；7th, lower rotary shaft；8th, valve seat；9th, spring；10th, O-ring；11st, sealing ring.
Specific embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Referring to such as Fig. 1 --- shown in Fig. 2, this specific embodiment is adopted the following technical scheme that：It includes spheroid 1, left valve barrel 2, valve rod 3, upper fixing axle 4, right valve barrel 5, weld seam 6, lower rotary shaft 7, valve seat 8；Described left valve barrel 2 is connected with right valve barrel 5 using welded type, and forms weld seam 6；Described left valve barrel 2 is internally provided with spheroid 1 with right valve barrel 5；The top of described spheroid 1, left valve barrel 2 are provided with fixing axle 4, upper fixing axle 4 with the top junction of right valve barrel 5 and are inserted with valve rod 3；The bottom of described spheroid 1 is provided with lower rotary shaft 7；Between described spheroid 1 and left valve barrel 2 and spheroid 1 and right valve barrel 5 between be provided with valve seat 8；Described left valve barrel 2 forms elliptical shape with right valve barrel 5.
Preferably, be connected between described valve seat 8 and left valve barrel 2 and between valve seat 8 and right valve barrel 5 on spring 9, and left valve barrel 2 and right valve barrel 5 being arranged with O-ring 10；Described valve seat 8 is provided with seal groove with the contact position of spheroid 1, and sealing ring 11 is provided with seal groove.
Preferably, described weld seam 6 is used once being welded.
Preferably, described sealing ring 11 is polyether-ether-ketone sealing ring.
The operation principle of this specific embodiment is：Using left valve barrel 2 and the welding manner of right valve barrel 5, in centre, away from potted component, wall thickness reduces 13%~35% to weld seam, and total quality mitigates 30%~40% compared with ball valve；Because oval valve body maximum body lumen wall is thick close with the wall thickness at its entrance end runner position, consider further that runner position needs the factor of machining, oval valve body can carry out the casting or forging and stamping of blank with same wall thickness in actual production, not only simplify mould, because the local stress that Wall-Thickness Difference causes reduces during making rough-cast or forging and pressing, the yield rate of rough-cast or forging and stamping is also improved；Left valve barrel 2 and the welding ball valve weld pitch seat ring of 5 two half elliptic valve body butt welding of right valve barrel are farther out, high temperature can be controlled in welding process can not be conducted to seating position, it is smaller to O-ring and sealing ring heat affecting, valve seat insert 11 and O-ring 10 will not be made to burn out or deform and cause valves leakage.Due to welding seam distance seat ring farther out, welding stress causes the limited deformation at valve body and valve seat position, will not cause seat ring jam and cannot seal.
After said structure, what this specific embodiment was produced has the beneficial effect that：Sealing property described in this specific embodiment ball valve high, good sealing effect, long service life, this specific embodiment have the advantages that simple structure, set rationally, low manufacture cost.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.It should be understood by those skilled in the art that; the present invention is not limited to the above embodiments; merely illustrating the principles of the invention described in above-described embodiment and specification; without departing from the spirit and scope of the present invention; various changes and modifications of the present invention are possible, and these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (4)
1. sealing property ball valve high, it is characterised in that：It includes spheroid, left valve barrel, valve rod, upper fixing axle, right valve barrel, weld seam, lower rotary shaft, valve seat；Described left valve barrel is connected with right valve barrel using welded type, and forms weld seam；Described left valve barrel is internally provided with spheroid with right valve barrel；The top of described spheroid, left valve barrel and right valve barrel top junction are provided with fixing axle, and valve rod is inserted with upper fixing axle；The bottom of described spheroid is provided with lower rotary shaft；Between described spheroid and left valve barrel and spheroid and right valve barrel between be provided with valve seat；Described left valve barrel forms elliptical shape with right valve barrel.
2. sealing property according to claim 1 ball valve high, it is characterised in that：It is connected between described valve seat and left valve barrel and between valve seat and right valve barrel on spring, and left valve barrel and right valve barrel and is arranged with O-ring；Described valve seat is provided with seal groove with spheroid contact position, and sealing ring is provided with seal groove.
3. sealing property according to claim 1 ball valve high, it is characterised in that：Described weld seam is used and is once welded.
4. sealing property according to claim 1 ball valve high, it is characterised in that：Described sealing ring is polyether-ether-ketone sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967401.9A CN106895171A (en) | 2015-12-18 | 2015-12-18 | Sealing property ball valve high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967401.9A CN106895171A (en) | 2015-12-18 | 2015-12-18 | Sealing property ball valve high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106895171A true CN106895171A (en) | 2017-06-27 |
Family
ID=59190901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510967401.9A Pending CN106895171A (en) | 2015-12-18 | 2015-12-18 | Sealing property ball valve high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106895171A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626426A (en) * | 2018-04-16 | 2018-10-09 | 西尼（南京）阀门机械有限公司 | A kind of longitudinal single weld seam all-welded ball valve of spherical |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865301A (en) * | 2009-04-14 | 2010-10-20 | 上海科科阀门有限公司 | Single-side welded ball valve |
| CN202109064U (en) * | 2011-06-16 | 2012-01-11 | 伯特利阀门集团有限公司 | All-welded ball valve of spherical valve body |
| CN202561101U (en) * | 2012-05-10 | 2012-11-28 | 上海开维喜阀门集团有限公司 | Top entry ball valve of forge welding valve body |
| CN202719180U (en) * | 2012-08-29 | 2013-02-06 | 上海高中压阀门股份有限公司 | Large-caliber all-welded ball valve |
| CN205298627U (en) * | 2015-12-18 | 2016-06-08 | 纽威阀门有限公司 | Single welding seam welding formula ball valve |
-
2015
- 2015-12-18 CN CN201510967401.9A patent/CN106895171A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865301A (en) * | 2009-04-14 | 2010-10-20 | 上海科科阀门有限公司 | Single-side welded ball valve |
| CN202109064U (en) * | 2011-06-16 | 2012-01-11 | 伯特利阀门集团有限公司 | All-welded ball valve of spherical valve body |
| CN202561101U (en) * | 2012-05-10 | 2012-11-28 | 上海开维喜阀门集团有限公司 | Top entry ball valve of forge welding valve body |
| CN202719180U (en) * | 2012-08-29 | 2013-02-06 | 上海高中压阀门股份有限公司 | Large-caliber all-welded ball valve |
| CN205298627U (en) * | 2015-12-18 | 2016-06-08 | 纽威阀门有限公司 | Single welding seam welding formula ball valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626426A (en) * | 2018-04-16 | 2018-10-09 | 西尼（南京）阀门机械有限公司 | A kind of longitudinal single weld seam all-welded ball valve of spherical |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |
|
| WD01 | Invention patent application deemed withdrawn after publication |