CN106499838A - Ball valve and fluid pipe network - Google Patents
Ball valve and fluid pipe network Download PDFInfo
- Publication number
- CN106499838A CN106499838A CN201611251591.5A CN201611251591A CN106499838A CN 106499838 A CN106499838 A CN 106499838A CN 201611251591 A CN201611251591 A CN 201611251591A CN 106499838 A CN106499838 A CN 106499838A
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- China
- Prior art keywords
- valve
- valve element
- rotating shaft
- valve body
- ball valve
- 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.)
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- 239000012530 fluid Substances 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 239000000945 filler Substances 0.000 claims abstract description 24
- 210000004907 gland Anatomy 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229950000845 politef Drugs 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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- 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
- F16K5/0694—Spindle sealings
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention provides ball valve and fluid pipe network, is related to the technical field of fluid control devices, including stuffing-box, upper valve body, lower valve body and bottom；The upper valve body and lower valve body are formed for accommodating the cavity volume of valve element；The bottom is arranged on lower valve body lower end, for sealing the fixation of lower valve body and support shaft；Described filler letter is arranged on the upper end of lower valve body, for sealing the fixation of lower valve body and rotating shaft；Through hole is provided with described filler letter, the rotating shaft connects the valve element by the through hole；The valve element includes valve element main body and sealing plate；Connector is provided with the sealing plate；Mounting groove is provided with the valve element main body.When rotating, valve seat is not contacted the valve element that the present invention is provided with valve element, does not produce friction between valve element and valve seat, is inherently eliminated harmful friction, solves the problems, such as valve element and the valve seat damage produced because of friction.
Description
Technical field
The present invention relates to the technical field of fluid control devices, more particularly, to a kind of ball valve and fluid pipe network.
Background technology
Fixed spherical ball valve is one of most commonly used valve of commercial Application.In fixed spherical ball valve, spheroid has rotating shaft, props up
Support axle, the two is fixed on valve body, and ball position is fixed, and Fluid pressure can not make it produce displacement.Spheroid both sides are valve seats,
Valve seat presses to spheroid by means of the thrust of spring and fluid, sets up seal pressure.
The fluid passage that the major function of this valve is turned off or connects in pipeline, is turning by handle or driving means
Apply certain torque on axle and pass to spheroid, be rotated by 90 ° it, the through hole of spheroid is overlapped with valve channel centrage or hung down
Directly, realizing valve wide open or fully closed action.
Valve standard-sized sheet or fully closed during, spheroid rotate, produce very big friction between spheroid and the contact surface of valve seat
Power, this frictional force make spheroid sphere and sealing surface of seat generation wear and tear and part of damage, ultimately result in the seal failure of valve.
In order to reduce this friction, typically spray valuable, high-strength wear-resistant alloy or improve using spherome surface and sealing surface of seat and add
Work precision, but frictional force can only be reduced and damage of this frictional force to parts can not possibly be completely eliminated.How to greatest extent
Minimizing even completely eliminate this harmful frictional force, the problem of valve industry research always, but be completely eliminated this harmful
Frictional force be not resolved so far.
Content of the invention
It is an object of the invention to provide ball valve and fluid pipe network, produce friction to solve valve element in prior art with valve seat
And part of damage, ultimately result in the technical problem of the seal failure of valve.
A kind of ball valve that the present invention is provided, including stuffing-box, upper valve body, lower valve body and bottom；The upper valve body and lower valve
Body is formed for accommodating the cavity volume of valve element；The bottom is arranged on lower valve body lower end, for sealing lower valve body；
Described filler letter is arranged on the upper end of lower valve body, for sealing the fixation of lower valve body and rotating shaft；
Through hole is provided with described filler letter, and rotating shaft connects the valve element by the through hole；
The valve element includes valve element main body and sealing plate；Connector is provided with the sealing plate；In the valve element main body
Mounting groove is provided with, the connector is hinged in the mounting groove.
Further, support shaft is provided with the bottom, in the support shaft be provided with support sleeve, the valve
Core is arranged on the support sleeve.
Further, described filler letter upper end is provided with fixing groove, is provided with filling out for sealing in the fixing groove
Material, arranges on described filler letter and for filler to be fixed on gland in fixing groove.
Further, described filler letter lower end is provided with for preventing rotating shaft from producing circumferentially displaced flying out under the pressure of fluid
Bearing shim.
Further, rotating shaft axle sleeve is provided with the rotating shaft, and the rotating shaft axle sleeve is located at the lower end of the bearing shim.
Further, the upper valve body is provided with valve seat near described valve element one end, and the valve seat is by the valve seat pressure
Plate is arranged on the upper valve body.
Further, be provided with rotation boss in the rotating shaft, the rotation boss with diameter greater than the through-hole diameter,
And the rotating shaft axle sleeve is set at the rotation boss.
Further, the pneumatic actuator for baroswitch valve is provided with the rotating shaft.
Further, the flow direction of fluid and the valve element main body and the connector in the pod apertures for arranging on the valve element
The jointed shaft being hinged is vertical.
The present invention also provides a kind of fluid pipe network, using ball valve described above.
Ball valve and fluid pipe network that the present invention is provided, can come change by the sealing plate arranged in valve element main body, valve
The friction of core and valve seat, due to the centre of sphere of valve element misaligned with Spool rotating center, center of rotation than valve element main body the centre of sphere from
Upper valve body is farther, so when rotary spool, has a skew relative to former geometric center, and center of rotation is to valve base sealing
The distance in face is different because position is different, length radius occurs, when Spool rotating is opened, because length radius reason produces cam
Effect, now valve element start to depart from valve seat, valve element and valve seat are without frictional rotation；So be conducive to the use longevity for improving ball valve
Life, it is also possible to improve the safety of whole fluid pipe network, reduces the maintenance frequency of whole fluid pipe network and the problem of fluid leakage.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of ball valve provided in an embodiment of the present invention；
Partial enlarged drawings of the Fig. 2 for ball valve shown in Fig. 1；
Fig. 3 is the valve element of ball valve shown in Fig. 1 and valve seat released state schematic diagram；
Tube wall views of the Fig. 4 for ball valve shown in Fig. 1；
Structural representations of the Fig. 5 for the valve element main body of ball valve shown in Fig. 1；
The structural representation of the ball valve that Fig. 6 is provided for another kind embodiment of the invention；
Fig. 7 is double-eccentric ball valve schematic diagram.
Icon：100- stuffing-boxes；200- lower valve bodies；300- upper valve bodies；400- valve element main bodys；500- bottoms；
600- support shafts；700- support sleeves；800- bearing shims；900- rotating shaft axle sleeves；110- rotates boss；120- turns
Axle；130- fillers；140- sealing plates；150- disc holders；160- valve seats；170- valve seat inserts；180- valve elements revolve
Turn center；The 190- centre ofs sphere；210- connectors；220- mounting grooves；230- pneumatic actuator 240- glands 250- cuts with scissors
Spindle 260- installing hole.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than whole embodiments.Embodiment in based on the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or hint indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As Figure 1-Figure 4, a kind of ball valve for providing in the present invention, including stuffing-box 100, upper valve body 300, lower valve body
200 and bottom 500；The upper valve body 300 and lower valve body 200 are formed for accommodating the cavity volume of valve element；The bottom 500 is arranged on
200 lower end of lower valve body, for sealing the fixation of lower valve body 200 and support shaft 600；
Described filler letter 100 is arranged on the upper end of lower valve body 200, for sealing the fixation of lower valve body 200 and rotating shaft 120；
Through hole is provided with described filler letter 100, and rotating shaft 120 connects the valve element by the through hole；
The valve element includes valve element main body 400 and sealing plate 140；Connector 210 is provided with the sealing plate 140；Institute
State and in valve element main body 400, be provided with mounting groove 220, the connector 210 is hinged in the mounting groove 220.
As shown in Figure 3, Figure 4, in the present embodiment, together with upper valve body 300 is bolted with lower valve body 200, on
There is valve element in the cavity volume that valve body 300 and lower valve body 200 are formed, the hole being connected with rotating shaft 120, rotating shaft 120 is provided with valve element
Be connected with valve element by the through hole of stuffing-box 100, the switch of valve is realized by controlling the rotation of rotating shaft 120.
Stuffing-box 100 can play a part of to connect upper valve body 300 and lower valve body 200, and can be fixed on rotating shaft 120
In through hole.
The rotation of rotating shaft 120 can adopt artificial rotation, it is also possible to connect other driving means, realize different drives
Dynamic.
Sealing plate 140 is set in valve element upper valve core main body 400, hinged in the mounting groove 220 arranged in valve element main body 400
Connector 210 is connected to, such sealing plate 140 can carry out rotation by a small margin in valve element main body 400；Soon close in valve element
When position, sealing plate 140 and valve seat 160 are first contacted, and valve element continues to close, between 140 fine rotation of sealing plate and valve seat 160
Friction very little, in addition negligible；So can effectively extend the service life of ball valve.
When closed positions are, sealing plate 140 and valve seat 160 are brought into close contact valve, and valve seat 160 and upper valve body 300 pass through
160 seal ring seal of valve seat, so that ensure that the sealing of valve.During valve opening, sealing plate 140 departs from 160 sealing surface of valve seat,
Whole valve element is not in contact with valve seat 160, is not produced friction, is extended the use time of sealing plate 140 and valve seat 160, significantly
Reduce the moment of torsion of valve.
As shown in figure 1, on above-described embodiment basis, further, being provided with support shaft on the bottom 500
600, support sleeve 700 is provided with the support shaft 600, the valve element is arranged on the support sleeve 700.
In the present embodiment, support shaft 600 is provided with bottom 500, have support sleeve 700, on valve element in support shaft 600
Borehole jack outside support sleeve 700, such valve element rotation when, its center of rotation can be fixed by support shaft 600, it is ensured that
The good operation of valve.
Bottom 500, can be used in aiding in fixing upper valve body 300 by bolt on upper valve body 300 and lower valve body 200
With lower valve body 200.
Support shaft 600 is fixedly installed on bottom 500, and support shaft 600 can adopt welding with the connection of bottom 500,
Can be using the other modes such as be spirally connected, bottom 500 can play a part of to connect upper valve body 300, lower valve body 200, and can consolidate
Determine the effect of support shaft 600.
On above-described embodiment basis, further, 100 upper end of described filler letter is provided with fixing groove, described solid
Determine to be provided with groove for airtight and watertight padding 130, arrange filler 130 is fixed in fixing groove on described filler letter 100 and fill out
Material gland 240.
On stuffing-box 100, there are fixing groove, fixing groove described in through hole to pass through, filler 130, filler is provided with fixing groove
130 can seal, and prevent valve pumped (conveying) medium from leaking outside, and what filler 130 was conventional has politef, graphite, asbestos disk
Three kinds of root.
On above-described embodiment basis, further, 100 lower end of described filler letter is provided with for preventing rotating shaft 120
The circumferentially displaced bearing shim 800 that fly out is produced under the pressure of fluid.
As shown in Fig. 2 on above-described embodiment basis, further, being provided with rotating shaft axle sleeve in the rotating shaft 120
900, the rotating shaft axle sleeve 900 is located at the lower end of the bearing shim 800.
There are rotating shaft axle sleeve 900, rotating shaft 120 reduce friction when rotation in 800 lower end of bearing shim.
Further, the upper valve body 300 is provided with valve seat 160 near described valve element one end, and the valve seat 160 passes through institute
State disc holder 150 to be arranged on the upper valve body 300.
Valve seat 160 can form intact sealing with valve element, prevent fluid from flowing in lower valve body 200 from upper valve body 300；Valve
Seat 160 is operated on upper valve body 300 by disc holder 150；Bolt is provided with disc holder 150, and disc holder 150 leads to
Cross bolt to be arranged on upper valve body 300.
Valve seat insert 170 is additionally provided between upper valve body 300 and valve seat 160, can play a part of sealing, make whole
The airtight quality of individual ball valve is more preferable, when rotary spool makes valve closing, it is ensured that fluid not side leakage.
As shown in figure 1, further, in the rotating shaft 120, be provided with rotation boss 110, the rotation boss 110 straight
Footpath is more than the through-hole diameter, and the rotating shaft axle sleeve 900 is set at the rotation boss 110.
In the cavity that stuffing-box 100 is formed with upper valve body 300 and lower valve body 200, herein with diameter greater than through hole
Diameter, the rotation boss 110 in rotating shaft 120 are rotated in cavity, and outside rotation boss 110 have fiducial axis axle sleeve, can be subtracted
The friction of rotation boss 110 and stuffing-box 100 less.
As shown in fig. 6, further, the pneumatic actuator for baroswitch valve is provided with the rotating shaft 120
230.
In the present embodiment, the pneumatic actuator 230 of baroswitch valve is provided with rotating shaft 120, this makes it possible to keep away
Exempt from people and carry out controlled valve；Selection can be played using YE or hydraulic actuator；Carry out open and close valve；So in ball
When valve design is very big, it is also possible to convenient unlatching；Simultaneously so also can by ball valve as danger where, equally can
Normal use, it is to avoid manual operation is damaged.
As shown in figure 5, further, the flow direction and the valve element main body of fluid in the pod apertures that arrange on the valve element
400 is vertical with the jointed shaft 250 that the connector 210 is hinged.
There is jointed shaft 250 in the mounting groove 220 arranged in valve element main body 400, in valve element main body 400, have installing hole
260, installing hole 260 is worn end from 400 upper end of valve element main body through mounting groove 220 and is passed, when the connector 210 of sealing plate 140
It is inserted in mounting groove 220, jointed shaft 250 penetrates installing hole 260, the hole through on connector 210, realizes sealing plate 140
It is hinged in valve element main body 400.
Jointed shaft 250 with rotating shaft 120 in same direction, be capable of the rotation by a small margin of left and right, so keep away by sealing plate 140
Exempt from the friction with valve seat 160 during valve switch；So as to increase the service life of valve.
As shown in fig. 7, double-eccentric ball valve overlaps for ensureing Liang Ge channel center, it is desirable to the equal i.e. a=b of two bias.This
When center of rotation to 190 line of the centre of sphere and channel center angle lucky 45 °, thereby produce double-eccentric ball valve one is special
Problem.As the needs of two eccentric consideration structures of double-eccentric ball valve must be equal, when major radius R1 passes through the centre of sphere 190 simultaneously just
Fall in sealing spherical area well, now R1 is tangent with sealing sphere, friction just occurs, make ball valve go out current situation near point of contact
Portion's friction aggravation, accelerated wear test.As ball valve optimal seal region is typically in the position that the angle of R1 and channel center is 45 °.
Double-eccentric ball valve during test or use often occurs scratching in this position.For avoiding the abrasion of this sealing area,
Eccentric mechanism movable sealing plate 140 is increased, when valve element nearly closed position will be tangent with 160 sealing surface of valve seat, sealing
140 sphere slip automatic capturing of plate is fitted with 160 sealing surface of valve seat, significantly reduces the abrasion of sealing surface.
The ball valve of the present invention is three eccentricity hard seal ball valve；When rotating, valve seat 160 is not contacted valve element with valve element, valve element
Friction is not produced between valve seat 160, be inherently eliminated harmful friction, solve valve element and the valve seat 160 produced because of friction
The problem of damage.
Compared with of the invention with common soft sealing ball valve
(1) broader temperature range is adapted to.Soft sealing ball valve is affected by the temperature tolerance of non-metallic seal, it is impossible to
For the too high situation of temperature.And metal sealing then can be used in 600 DEG C of even more highs according to different materials.
(2) can be used for higher pressure limit.Stability by nonmetallic materials voltage endurance capability and under high pressure is limited,
The ball valve of nonmetallic sealing is used for CL600 or lower grade.During for elevated pressures grade, the easy unstability of non-metallic seal
And cause valve invalidation.And metal hard-sealing ball valve can be used for CL2500 levels.
(3) the more long life can be obtained.Nonmetallic materials are compared with metal material, easily aging.Therefore using one section
After time, valve seal performance is caused also to decline because of the hydraulic performance decline of nonmetallic materials.On the other hand, nonmetallic materials are easily received
Damage.When solid particle is contained in fluid, non-metallic seal is easy to be scratched, so as to cause seal failure or sealing
Can decline.
Compared with of the invention with common metal hard-sealing ball valve
(1) fixed ball design.Ordinary ball valve is float ball sealing, and three eccentricity ball valve is entirely to fix ball design, and
Seal pressure is set up by the moment of torsion of itself, is all reliable under any circumstance.
(2) moment of torsion Seal Design.Traditional metal hard-sealing fixes spherical ball valve, is generally all disposed behind in valve seat 160
Pretensioned spring, under the action of the spring, makes valve seat 160 contact with ball seal face and form seal pressure.If spring is firm
Degree is less than normal, then the seal pressure of formation is also smaller, and sealing effectiveness is poor；If spring rate is larger, sealing surface can be increased
Abrasion, while increase switch torque；On the other hand, spring is affected by medium temperature, and its rigidity is often changed over,
Therefore sealing effectiveness can also be changed over.And three eccentricity ball valve is sealed by moment of torsion, larger seal pressure can be formed, and
Larger abrasion is there will not be, while also not affected by temperature and alternate load.
(3) 160 two way seal performance of single valve seat.Under worst cold case, traditional metal hard-sealing ball is being capable of relief valve
Medium in chamber, all takes the automatic pressure releasing mechanism of complexity or by the way of perforate.The former increased the complexity of valve seat 160
Property, the latter can make ball valve that there is directivity because of perforate.Three eccentricity ball valve employs single valve seat 160, therefore there is no valve pocket pressure
The problem of power release.And three eccentricity structure so that valve seat 160 seals, in which direction, all there is good sealing effectiveness,
There is completely two way seal function.
The present invention also provides a kind of fluid pipe network, using ball valve described above.
In the present embodiment, fluid hose can reduce the service life of whole fluid pipe network on the net using above-mentioned ball valve,
The problem that does not sternly bring due to ball valve sealing is reduced, the maintenance cost of whole fluid pipe network is reduced.
Ball valve and fluid pipe network that the present invention is provided, can be changed by the sealing plate 140 arranged in valve element main body 400
Become, the friction of valve element and valve seat 160, due to the centre of sphere 190 of valve element misaligned with Spool rotating center 180, Spool rotating center
More farther from upper valve body 300 than the centre of sphere 190 of valve element main body 400, so when rotary spool, have relative to former geometric center
One skew, the distance at Spool rotating center to 160 sealing surface of valve seat are different because position is different, length radius occur, work as valve
When core is rotarily opened, because length radius reason produces cam effect, now valve element starts to depart from valve seat 160, valve element and valve seat
160 without frictional rotation；So be conducive to the service life for improving ball valve, it is also possible to improve the safety of whole fluid pipe network, subtract
The maintenance frequency of few whole fluid pipe network and the problem of fluid leakage.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of ball valve, it is characterised in that including stuffing-box, upper valve body, lower valve body and bottom；The upper valve body and the lower valve bodily form
Into the cavity volume for being used for accommodating valve element；The bottom is arranged on lower valve body lower end, for sealing lower valve body；
Described filler letter is arranged on the upper end of lower valve body, for sealing the fixation of lower valve body and rotating shaft；
Through hole is provided with described filler letter, and rotating shaft connects the valve element by the through hole；
The valve element includes valve element main body and sealing plate；Connector is provided with the sealing plate；Arrange in the valve element main body
There is mounting groove, the connector is hinged in the mounting groove.
2. ball valve according to claim 1, it is characterised in that be provided with support shaft on the bottom, in the support
Support sleeve is provided with axle, the valve element is arranged on the support sleeve.
3. ball valve according to claim 1, it is characterised in that described filler letter upper end is provided with fixing groove, described solid
Determine to be provided with groove for airtight and watertight padding, arrange on described filler letter and filler is fixed on gland in fixing groove.
4. ball valve according to claim 1, it is characterised in that described filler letter lower end is provided with for preventing rotating shaft in stream
The circumferentially displaced bearing shim for flying out is produced under body pressure.
5. ball valve according to claim 4, it is characterised in that be provided with rotating shaft axle sleeve, the rotating shaft axle in the rotating shaft
Set is located at the lower end of the bearing shim.
6. ball valve according to claim 1, it is characterised in that the upper valve body is provided with valve near described valve element one end
Seat, the valve seat are arranged on the upper valve body by the disc holder.
7. ball valve according to claim 2, it is characterised in that be provided with rotation boss in the rotating shaft, the rotation is convex
Platform with diameter greater than the through-hole diameter, and the rotating shaft axle sleeve be set in described rotation boss at.
8. ball valve according to claim 1, it is characterised in that be provided with the gas for baroswitch valve in the rotating shaft
Dynamic executor.
9. ball valve according to claim 1, it is characterised in that in the pod apertures arranged on the valve element flow direction of fluid with
The valve element main body is vertical with the jointed shaft that the connector is hinged.
10. a kind of fluid pipe network, it is characterised in that using ball valve described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251591.5A CN106499838B (en) | 2016-12-29 | 2016-12-29 | Ball valve and fluid pipe network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251591.5A CN106499838B (en) | 2016-12-29 | 2016-12-29 | Ball valve and fluid pipe network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413062A (en) * | 2018-05-15 | 2018-08-17 | 鞍山亨通高炉设备工程技术有限公司 | Eccentric type bottom ball face sealing lock |
| CN108547989A (en) * | 2018-07-03 | 2018-09-18 | 浙江融乐环境科技有限公司 | It is a kind of without being detained full packet three-flat ball valve |
| CN109812596A (en) * | 2019-03-14 | 2019-05-28 | 无锡智能自控工程股份有限公司 | A kind of Fixed ball valve of the driven axle construction of separation type |
| CN110173574A (en) * | 2019-06-21 | 2019-08-27 | 邵延荣 | A kind of long life ball valve |
| CN110410521A (en) * | 2019-08-27 | 2019-11-05 | 江苏江恒阀业有限公司 | A kind of tubular full-bore three eccentricity high-pressure anti-wear ball valve |
| CN116407753A (en) * | 2022-12-09 | 2023-07-11 | 深圳核心医疗科技有限公司 | Driving mechanism and blood pump |
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| CN106015622A (en) * | 2016-06-20 | 2016-10-12 | 中节能耐磨技术宜兴有限公司 | Double-eccentricity ceramic hemispherical valve |
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| US4846221A (en) * | 1987-05-21 | 1989-07-11 | Kitz Corporation | Ball valve with built-in check valve |
| WO2014011038A1 (en) * | 2012-07-11 | 2014-01-16 | Stichting Energieonderzoek Centrum Nederland | Feed valve |
| CN104976370A (en) * | 2015-06-05 | 2015-10-14 | 王照业 | Floating spherical crown dredge type metal sealing ball valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413062A (en) * | 2018-05-15 | 2018-08-17 | 鞍山亨通高炉设备工程技术有限公司 | Eccentric type bottom ball face sealing lock |
| CN108547989A (en) * | 2018-07-03 | 2018-09-18 | 浙江融乐环境科技有限公司 | It is a kind of without being detained full packet three-flat ball valve |
| CN109812596A (en) * | 2019-03-14 | 2019-05-28 | 无锡智能自控工程股份有限公司 | A kind of Fixed ball valve of the driven axle construction of separation type |
| CN110173574A (en) * | 2019-06-21 | 2019-08-27 | 邵延荣 | A kind of long life ball valve |
| CN110410521A (en) * | 2019-08-27 | 2019-11-05 | 江苏江恒阀业有限公司 | A kind of tubular full-bore three eccentricity high-pressure anti-wear ball valve |
| CN116407753A (en) * | 2022-12-09 | 2023-07-11 | 深圳核心医疗科技有限公司 | Driving mechanism and blood pump |
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| CN106499838B (en) | 2020-06-05 |
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Denomination of invention: Ball valve and fluid pipeline network Granted publication date: 20200605 Pledgee: Hunan Bank Co.,Ltd. Yueyang Branch Pledgor: Hunan western Ace fluid control devices Co.,Ltd. Registration number: Y2024980013858 |
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