CN107725815A - Fixed ball valve - Google Patents
Fixed ball valve Download PDFInfo
- Publication number
- CN107725815A CN107725815A CN201710919069.8A CN201710919069A CN107725815A CN 107725815 A CN107725815 A CN 107725815A CN 201710919069 A CN201710919069 A CN 201710919069A CN 107725815 A CN107725815 A CN 107725815A
- Authority
- CN
- China
- Prior art keywords
- annular groove
- valve
- spheroid
- fixed ball
- valve body
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims description 40
- 239000000945 filler Substances 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16K5/0663—Packings
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
- F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
-
- 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
-
- 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
A kind of Fixed ball valve is disclosed, it includes：Valve body, the valve body is interior to be provided with passage, and first annular groove is provided with the passage；Spheroid, in the passage of the valve body, the spheroid, which rotates, make it that the passage is unobstructed or ends；Valve seat, positioned at the spheroid in the both sides of passage axial direction；And bellows springs, interior be provided with of the passage of the valve body can accommodate the valve seat and the first annular groove of the bellows springs, the bellows springs are located at side of the valve seat away from the spheroid, and are offseted with the side wall of the first annular groove.According to the Fixed ball valve of the present invention, the initial sealing power between its spheroid and valve seat is provided by bellows springs, and sealing is relatively reliable, avoids damage of the solid particle medium to ball valve internal part.
Description
Technical field
The present invention relates to valve field, relates more specifically to a kind of Fixed ball valve.
Background technology
Ball valve comes out in the 1950s, with the rapid development of science and technology, and production technology and product structure are not
It is disconnected to improve, in the 40 short years, develop rapidly as a kind of main valve class.In the country that western industrial is flourishing,
The use of ball valve year by year constantly rise, in China, ball valve be widely used petroleum refining, long-distance transport pipes, chemical industry,
The industries such as papermaking, pharmacy, water conservancy, electric power, municipal administration, steel, very important status is occupied in national economy.
The ball valve commonly used at present in the industries such as nuclear power, petrochemical industry, papermaking, metallurgy is Fixed ball valve, existing fixed
In ball valve, the pretightning force between valve ball and valve seat is provided by helical spring or disk spring etc., helical spring, dish-shaped bullet
The easy aging of spring and easily blocked and then seal failure by solid particle medium, solid particle medium is easily by stuffing box and ball
Gap between body, which enters, causes valve rod and stuffing box to pull between valve rod and stuffing box, and then whole valve is stuck to move
Make, solid particle medium, which is also easy to enter by the gap between shaft-cup and spheroid, causes shaft-cup and spheroid between shaft-cup and spheroid
Pull so it is whole valve is stuck to act, seal failure.
The content of the invention
In view of this, it is initial close between its spheroid and valve seat it is an object of the invention to provide a kind of Fixed ball valve
Envelope power is provided by bellows springs, and sealing is relatively reliable, avoids damage of the solid particle medium to ball valve internal part.
According to a kind of Fixed ball valve provided by the invention, including：Valve body, the valve body is interior to be provided with passage, the passage
It is interior to be provided with first annular groove；Spheroid, in the passage of the valve body, the spheroid, which rotates, make it that the passage is unobstructed or cuts
Only；Valve seat, positioned at the spheroid in the both sides of passage axial direction；And bellows springs, it is provided with the passage of the valve body
The valve seat and the first annular groove of the bellows springs can be accommodated, the bellows springs are located at the valve seat away from institute
The side of spheroid is stated, and is offseted with the side wall of the first annular groove.
Preferably, the valve seat is annular in shape, and the external diameter of the bellows springs is suitable with the external diameter of the valve seat, and with
The valve seat is coaxially disposed.
Preferably, the bellows springs include：First annular projection, positioned at the bellows springs towards the valve seat
Side, the second annular groove being provided with the respective side of the valve seat matches；Second annular projection, positioned at the bellows bullet
Towards the side of the side wall of the first annular groove, the 3rd annular groove being provided with the side wall matches spring.
Preferably, the Fixed ball valve also includes：First sealing ring, positioned at the valve seat and the bellows springs it
Between；Second sealing ring, between the bellows springs and the side wall of the first annular groove.
Preferably, the periphery of the valve seat is provided with fourth annular groove, and the Fixed ball valve also includes：First dust ring,
In the fourth annular groove.
Preferably, the valve body includes：Main valve body；And auxiliary valve body, the auxiliary valve body at the first annular groove with
The main valve body is bolted the valve body to form completion.
Preferably, the Fixed ball valve also includes：Valve rod, it is connected with the spheroid, along radially extending for the passage,
The valve rod rotates around axle drives the spheroid to rotate.
Preferably, the Fixed ball valve also includes：Stuffing box, in stepped annular, it is sheathed on the valve rod and the valve
Between body, filling filler in the stuffing box；Packing seal element, it is set on the valve rod and is connected with the stuffing box.
Preferably, the Fixed ball valve also includes：First sliding bearing, be sheathed on the valve rod and the stuffing box it
Between；Second sliding bearing, it is sheathed between the stuffing box and the spheroid；Thrust bearing, positioned at first sliding bearing
One end.
Preferably, the inner periphery and the outer periphery of second sliding bearing are respectively equipped with the 5th annular groove, the 6th annular groove, described
Fixed ball valve also includes：Second dust ring, in the 5th annular groove；3rd dust ring, positioned at the described 6th annular
In groove.
Preferably, the Fixed ball valve also includes：Shaft-cup；And the 3rd sliding bearing, one end of the shaft-cup and institute
State valve body to be bolted, the other end is connected by the 3rd sliding bearing with the spheroid, the 3rd sliding bearing
Inner periphery and the outer periphery be respectively equipped with the 7th annular groove, the 8th annular groove；4th dust ring, in the 7th annular groove；The
Five dust rings, in the 8th annular groove.
According to the Fixed ball valve of the present invention, the initial sealing power between its spheroid and valve seat is carried by bellows springs
For the problem of avoiding the easy aging of valve seat location early warning spring or blocked by solid particle, sealing is relatively reliable.The fixation
Being also an option that property of formula ball valve includes：It is first dust ring, the second dust ring, the 3rd dust ring, the 4th dust ring, the 5th dust-proof
Circle.Wherein, the first dust ring is arranged in the fourth annular groove of valve seat periphery；Second dust ring be arranged on the second sliding bearing with
In the 5th annular groove between stuffing box；3rd dust ring is arranged on the 6th annular groove between the second sliding bearing and spheroid
It is interior；4th dust ring is arranged in the 7th annular groove between the 3rd sliding bearing and shaft-cup；5th dust ring is arranged on the 3rd
In the 8th annular groove between sliding bearing and spheroid.By setting bellows springs and multiple dust rings, solid is avoided
Granule medium entered by the gap between stuffing box and spheroid cause valve rod between valve rod and stuffing box and stuffing box pull, with
And solid particle medium can be avoided to enter by the gap between shaft-cup and spheroid shaft-cup and ball are caused between shaft-cup and spheroid
Body is pulled and then makes whole valve stuck the problem of can not acting so that Fixed ball valve with reliable, service life length.
Brief description of the drawings
By the description to the embodiment of the present invention referring to the drawings, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from.
Fig. 1 shows the structural representation of Fixed ball valve according to embodiments of the present invention；
Fig. 2 shows the partial enlarged drawing of a-quadrant in Fig. 1；
Fig. 3 shows the partial enlarged drawing of B area in Fig. 1；
Fig. 4 shows the partial enlarged drawing in C regions in Fig. 1；
Fig. 5 shows the partial enlarged drawing in D regions in Fig. 1.
Embodiment
The present invention is more fully described hereinafter with reference to accompanying drawing.In various figures, identical element is using similar attached
Icon is remembered to represent.For the sake of clarity, the various pieces in accompanying drawing are not necessarily to scale.In addition, it may not show in figure
Go out some known parts.
It describe hereinafter many specific details of the present invention, such as the structure of part, material, size, processing work
Skill and technology, to be more clearly understood that the present invention.But just as the skilled person will understand, it can not press
The present invention is realized according to these specific details.
It should be appreciated that when describing the structure of part, it is referred to as when by a floor, a region positioned at another floor, another area
When domain " above " or " top ", can refer to above another layer, another region, or its with another layer, it is another
Other layers or region are also included between individual region.Also, if by part turnover, this layer, a region will be located at it is another
Layer, another region " following " or " lower section ".
Fig. 1 shows the structural representation of Fixed ball valve according to embodiments of the present invention, and Fig. 2, Fig. 3, Fig. 4, Fig. 5 show respectively
Go out a-quadrant in Fig. 1, B area, C regions, the partial enlarged drawing in D regions.The Fixed ball valve of the present embodiment includes valve body 100, ball
Body 200, valve seat 300 and bellows springs 400.Passage 130 is provided with valve body, first annular groove is provided with the passage 130.Ball
Body is located in the passage 130 of valve seat 300, can be provided with inside spheroid 200 and be rotated with the 130 corresponding through hole of passage, spheroid 200
So that passage 130 is unobstructed or ends.Valve seat 300 is located at spheroid 200 in the both sides of the axial direction of passage 130.Set in the passage of valve body 100
The first annular groove 510 of valve seat 300 and bellows springs 400 can be accommodated by having, and it is remote that bellows springs 400 are located at valve seat 300
The side of spheroid 200, and offseted with the side wall of first annular groove 510.
In the present embodiment, valve body 100 includes main valve body 110 and auxiliary valve body 120, and wherein auxiliary valve body 120 is first annular
At groove 510 valve body 100 to form completion is bolted with main valve body 110.
In fixing ball valve in the present embodiment, entrance point can be defined as along one end of the axial direction of passage 130, the other end can
To be defined as the port of export.Valve seat 300, bellows springs 400 can be corresponding a pair with entrance point, the port of export, and with ball
Body 200 is arranged for axial symmetry.
Valve seat 300 can be annular in shape, it is preferable that and the external diameter of bellows springs 400 is suitable with the external diameter of valve seat 300, and
It is coaxially disposed with valve seat 300, the internal diameter of valve seat 300 and bellows springs 400 can be suitable with the internal diameter of passage 130.
Further, bellows springs 400 can include first annular raised 410 and second annular projection 420.Wherein,
First annular raised 410 are located at bellows springs 400 towards the side of valve seat 300, second be provided with the respective side of valve seat 300
Annular groove 520 matches.Second annular projection 420 is located at bellows springs 400 towards the side wall of first annular groove 510
Side, the 3rd annular groove 530 being provided with the side wall match.So that bellows springs 400 are only capable of the axle along passage 130
To motion, unnecessary kinematic error is avoided.
The Fixed ball valve of the present embodiment can also include the first sealing ring 710 and the second sealing ring 720.Wherein first
For sealing ring 710 between valve seat 300 and bellows springs 400, the second sealing ring 720 is located at bellows springs 400 and first
Between the side wall of annular groove 510.In the present embodiment, the first sealing ring 710, the second sealing ring 720 correspond to positioned at the respectively
In the annular groove 530 of second ring groove 520 and the 3rd.
The periphery of valve seat 300 can be provided with fourth annular groove 540, and Fixed ball valve can also include the first dust ring 610,
First dust ring 610 can be located in fourth annular groove 540.
Fixed ball valve can also include valve rod 810, stuffing box 820 and packing seal element 830.Valve rod 810 and spheroid
200 connections, along radially extending for passage 130, valve rod 810 rotates around axle drives spheroid 200 to rotate.Stuffing box 820 is in ladder
Ring-type, it is sheathed between valve rod 810 and valve body 100, filling filler 821 in stuffing box 820.Packing seal element 830 is set in valve
It is connected on bar 810 and with stuffing box 820.
Packing seal element 830 can include filler pressing sleeve 831 and hold-down grid 832, and filler pressing sleeve 831 is sheathed on valve rod
On 810, and on filler 821, filler 821 is enclosed in stuffing box 820, hold-down grid 832 is located at filler pressing sleeve 831
On, fixation is tightened by bolt and stuffing box 820 and/or valve body 100, it is pressed filler pressing sleeve 831.
It can be made between valve rod 810 and spheroid 200 by square feather joint, valve rod 810 by driving spheroid 200 to rotate
Fixed ball valve is obtained in unobstructed switching and transition between cut-off.Fig. 1 shows state during Fixed ball valve standard-sized sheet, works as valve
After bar 810 drives spheroid 200 with the axis both clockwise of valve rod 810 or rotates counterclockwise 90 °, Fixed ball valve cut-off.
Further, Fixed ball valve can also include the first sliding bearing 910, the second sliding bearing 920 and thrust
Bearing 940.First sliding bearing 910 is sheathed between valve rod 810 and stuffing box 820, and the second sliding bearing 920 is sheathed on filler
Between case 820 and spheroid 200, thrust bearing 940 is then located at one end of the first sliding bearing 910, in the present embodiment, thrust bearing
940 are located at the first sliding bearing 910 close to one end of spheroid 200.
In the present embodiment, the inner periphery and the outer periphery of the second sliding bearing 920 are respectively equipped with the annular of the 5th annular groove the 550, the 6th
Groove 560.Correspondingly, Fixed ball valve can also include the second dust ring 620 and the 3rd dust ring 630, wherein second is dust-proof
Enclose in 620 the 5th annular groove 550 positioned at the second sliding bearing 920 and stuffing box 820 between, the 3rd dust ring 630 is located at the
In the 6th annular groove 560 between two sliding bearings 920 and spheroid 200.
Fixed ball valve can also include the sliding bearing 930 of shaft-cup 840 and the 3rd, and one end of shaft-cup 840 can be provided with
Flange, and be bolted with valve body 100, the other end with the 3rd sliding bearing 930 with spheroid 200 by can be connected.The
The inner periphery and the outer periphery of three sliding bearings 930 are respectively equipped with the 7th annular groove 570, the 8th annular groove 580, and Fixed ball valve can be with
Including the 4th dust ring 640 and the 5th dust ring 650, the 4th dust ring 640 is positioned at the 3rd sliding bearing 930 and shaft-cup 840
Between the 7th annular groove 570 in, the 5th dust ring 650 between the 3rd sliding bearing 930 and spheroid 200 the 8th annular
In groove 580.
In the present embodiment, between main valve body 110 and auxiliary valve body 120, between stuffing box 820 and valve body 100 and shaft-cup
It can be attached between 840 and valve body 100 with companion flange structure and bolt, wherein between main valve body 110 and auxiliary valve body 120
The first gasket seal 1010 can be set to be sealed, the second gasket seal can be set between stuffing box 820 and valve body 100
1020 are sealed, in addition, to ensure that the installation site of stuffing box 820 is more accurate, can set alignment pin 1100 by stuffing box 820
It is located by connecting with valve body 100.Between shaft-cup 840 and valve body 100 the 3rd gasket seal 1030 can be set to be sealed.Above-mentioned master
Between valve body 110 and auxiliary valve body 120, between stuffing box 820 and valve body 100 and the bolt between shaft-cup 840 and valve body 100
Connection can also be the connection of other connectors such as screw, stud, can also be the combination of stud, nut, spring shim etc., on
The alignment pin 1100 stated is, for example, cylindrical positioning pins.
According to the Fixed ball valve of the present invention, the initial sealing power between its spheroid 200 and valve seat 300 passes through bellows bullet
Spring 400 is provided, and the problem of avoiding the easy aging of the position early warning spring of valve seat 300 or blocked by solid particle, sealing more may be used
Lean on.The being also an option that property of Fixed ball valve includes：First dust ring 610, the second dust ring 620, the 3rd dust ring 630,
4th dust ring 640, the 5th dust ring 650.Wherein, the first dust ring 610 is arranged on the fourth annular groove of the periphery of valve seat 300
In 540；Second dust ring 620 is arranged in the 5th annular groove 550 between the second sliding bearing 920 and stuffing box 820；3rd
Dust ring 630 is arranged in the 6th annular groove 560 between the second sliding bearing 920 and spheroid 200；4th dust ring 640 is set
Put in the 7th annular groove 570 between the 3rd sliding bearing 930 and shaft-cup 840；5th dust ring 650 is arranged on the 3rd slip
In the 8th annular groove 580 between bearing 930 and spheroid 200.By setting bellows springs 400 and multiple dust rings, keep away
Exempted from solid particle medium by the gap between stuffing box 820 and spheroid 200 enter made between valve rod 810 and stuffing box 820
Pulled into valve rod 810 and stuffing box 820 and solid particle medium can be avoided by between shaft-cup 840 and spheroid 200
Gap, which enters, causes shaft-cup 840 and spheroid 200 to pull and then make whole valve is stuck can not act between shaft-cup 840 and spheroid 200
The problem of so that Fixed ball valve with reliable, service life length.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
According to embodiments of the invention as described above, these embodiments do not have all details of detailed descriptionthe, not yet
It is only described specific embodiment to limit the invention.Obviously, as described above, can make many modifications and variations.This explanation
Book is chosen and specifically describes these embodiments, is in order to preferably explain the principle and practical application of the present invention, so that affiliated
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.The present invention is only by right
The limitation of claim and its four corner and equivalent.
Claims (11)
- A kind of 1. Fixed ball valve, it is characterised in that including：Valve body, the valve body is interior to be provided with passage, and first annular groove is provided with the passage；Spheroid, in the passage of the valve body, the spheroid, which rotates, make it that the passage is unobstructed or ends；Valve seat, positioned at the spheroid in the both sides of passage axial direction；AndBellows springs, the first annular of the valve seat and the bellows springs can be accommodated by being provided with the passage of the valve body Groove, the bellows springs are located at side of the valve seat away from the spheroid, and with the side wall phase of the first annular groove Support.
- 2. Fixed ball valve according to claim 1, it is characterised in that the valve seat is annular in shape, the bellows springs External diameter it is suitable with the external diameter of the valve seat, and be coaxially disposed with the valve seat.
- 3. Fixed ball valve according to claim 1, it is characterised in that the bellows springs include：First annular projection, positioned at the bellows springs towards the side of the valve seat, it is provided with the respective side of the valve seat The second annular groove match；Second annular projection, it is and described positioned at the bellows springs towards the side of the side wall of the first annular groove The 3rd annular groove that side wall is provided with matches.
- 4. Fixed ball valve according to claim 1, it is characterised in that also include：First sealing ring, between the valve seat and the bellows springs；Second sealing ring, between the bellows springs and the side wall of the first annular groove.
- 5. Fixed ball valve according to claim 1, it is characterised in that the periphery of the valve seat is provided with fourth annular groove,The Fixed ball valve also includes：First dust ring, in the fourth annular groove.
- 6. Fixed ball valve according to claim 1, it is characterised in that the valve body includes：Main valve body；AndAuxiliary valve body, the auxiliary valve body are bolted to be formed described in completion at the first annular groove with the main valve body Valve body.
- 7. Fixed ball valve according to claim 1, it is characterised in that also include：Valve rod, it is connected with the spheroid, along radially extending for the passage, the valve rod rotates around axle drives the spheroid to turn It is dynamic.
- 8. Fixed ball valve according to claim 7, it is characterised in that also include：Stuffing box, in stepped annular, it is sheathed between the valve rod and the valve body, filling filler in the stuffing box；Packing seal element, it is set on the valve rod and is connected with the stuffing box.
- 9. Fixed ball valve according to claim 8, it is characterised in that also include：First sliding bearing, it is sheathed between the valve rod and the stuffing box；Second sliding bearing, it is sheathed between the stuffing box and the spheroid；Thrust bearing, positioned at one end of first sliding bearing.
- 10. Fixed ball valve according to claim 9, it is characterised in that the inner periphery and the outer periphery of second sliding bearing The 5th annular groove, the 6th annular groove are respectively equipped with,The Fixed ball valve also includes：Second dust ring, in the 5th annular groove；3rd dust ring, in the 6th annular groove.
- 11. Fixed ball valve according to claim 1, it is characterised in that also include：Shaft-cup；3rd sliding bearing, one end of the shaft-cup are bolted with the valve body, and the other end slides by the described 3rd Bearing is connected with the spheroid, and the inner periphery and the outer periphery of the 3rd sliding bearing are respectively equipped with the 7th annular groove, the 8th annular groove；4th dust ring, in the 7th annular groove；5th dust ring, in the 8th annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919069.8A CN107725815A (en) | 2017-09-30 | 2017-09-30 | Fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919069.8A CN107725815A (en) | 2017-09-30 | 2017-09-30 | Fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107725815A true CN107725815A (en) | 2018-02-23 |
Family
ID=61208509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710919069.8A Pending CN107725815A (en) | 2017-09-30 | 2017-09-30 | Fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725815A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799618A (en) * | 2018-07-09 | 2018-11-13 | 江苏神通阀门股份有限公司 | A kind of stuffing-box anti-rotation structure for preventing fast opening and closing ball valve trip bolt from shearing |
| CN112228569A (en) * | 2020-11-18 | 2021-01-15 | 浙江科博达工业有限公司 | Valve sealing structure and its electronically controlled throttle valve |
| CN113653824A (en) * | 2021-08-13 | 2021-11-16 | 哈电集团哈尔滨电站阀门有限公司 | Scouring-resistant ball valve |
| CN114688290A (en) * | 2020-12-28 | 2022-07-01 | 纳福希（上海）阀门科技有限公司 | A bellows ball valve |
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|---|---|---|---|---|
| EP0202666A2 (en) * | 1985-05-24 | 1986-11-26 | Grove Italia S.p.A. | Improvement in on-off valves |
| CN201159300Y (en) * | 2008-02-15 | 2008-12-03 | 温州市瓯斯特阀门有限公司 | High temperature oil gas isolation valve |
| CN202469051U (en) * | 2011-08-13 | 2012-10-03 | 余金贤 | High temperature high pressure hard seal ball valve |
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| CN203730816U (en) * | 2014-03-28 | 2014-07-23 | 浙江永盛仪表有限公司 | Fixed hard-sealing ball valve |
| CN203797024U (en) * | 2014-04-02 | 2014-08-27 | 浙江欧斯特泵阀有限公司 | Split corrugated pipe ball valve |
| CN204164406U (en) * | 2014-09-12 | 2015-02-18 | 浦江乐门阀业有限公司 | A kind of ball valve |
| CN104421452A (en) * | 2013-09-04 | 2015-03-18 | 龚伶 | High-temperature hard seal ball valve |
| CN106763861A (en) * | 2016-12-13 | 2017-05-31 | 白龙山 | Pneumatic bellows bellows-type hydraulic packing ball valve |
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| CN201159300Y (en) * | 2008-02-15 | 2008-12-03 | 温州市瓯斯特阀门有限公司 | High temperature oil gas isolation valve |
| CN202469051U (en) * | 2011-08-13 | 2012-10-03 | 余金贤 | High temperature high pressure hard seal ball valve |
| CN102734486A (en) * | 2012-06-21 | 2012-10-17 | 镇江市铸造阀门厂有限公司 | Valve assembly sealing device of low temperature ball valve |
| CN104421452A (en) * | 2013-09-04 | 2015-03-18 | 龚伶 | High-temperature hard seal ball valve |
| CN203730816U (en) * | 2014-03-28 | 2014-07-23 | 浙江永盛仪表有限公司 | Fixed hard-sealing ball valve |
| CN203797024U (en) * | 2014-04-02 | 2014-08-27 | 浙江欧斯特泵阀有限公司 | Split corrugated pipe ball valve |
| CN204164406U (en) * | 2014-09-12 | 2015-02-18 | 浦江乐门阀业有限公司 | A kind of ball valve |
| CN106763861A (en) * | 2016-12-13 | 2017-05-31 | 白龙山 | Pneumatic bellows bellows-type hydraulic packing ball valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799618A (en) * | 2018-07-09 | 2018-11-13 | 江苏神通阀门股份有限公司 | A kind of stuffing-box anti-rotation structure for preventing fast opening and closing ball valve trip bolt from shearing |
| CN112228569A (en) * | 2020-11-18 | 2021-01-15 | 浙江科博达工业有限公司 | Valve sealing structure and its electronically controlled throttle valve |
| CN114688290A (en) * | 2020-12-28 | 2022-07-01 | 纳福希（上海）阀门科技有限公司 | A bellows ball valve |
| CN113653824A (en) * | 2021-08-13 | 2021-11-16 | 哈电集团哈尔滨电站阀门有限公司 | Scouring-resistant ball valve |
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