CN201851703U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN201851703U CN201851703U CN2010206403126U CN201020640312U CN201851703U CN 201851703 U CN201851703 U CN 201851703U CN 2010206403126 U CN2010206403126 U CN 2010206403126U CN 201020640312 U CN201020640312 U CN 201020640312U CN 201851703 U CN201851703 U CN 201851703U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- combined elastic
- ball valve
- ball
- 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.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000010454 slate Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a ball valve which mainly comprises a left valve body, a right valve body, a ball body, a combined elastic valve seat, a valve shaft and the like. The ball valve is characterized in that the combined elastic valve seat (5) is arranged in the left valve body (2), the sealing end of the combined elastic valve seat (5) is in contact with the ball body (4), a press ring (7) is arranged at the upper end of the combined elastic valve seat (5), a screw (6) passes through the press ring (7) to be connected with the left valve body (2), and the combined elastic valve seat (5) is a laminated body composed of multi-layer metal and multi-layer nonmetal; a disk-shaped spring (10) is arranged on a connecting bolt (8) of the left valve body (2) and the right valve body (1), and one end of the disk-shaped spring (10) is in contact with a nut (9); and the side surface of the right valve body (1) is provided with a window (13), and a bolt (12) passes through a seal plate (11) to be connected with the right valve body (1). The ball valve has the advantages of good sealing performance, long service life and the like.
Description
Technical field
The invention belongs to media flow in the controlling plumbing fixtures and have the universal machine product of movable agency, relate in particular to a kind of ball valve.
Background technique
Ball valve is a kind of novel valve that eighties of last century the fifties is asked thing, and its working principle is: spool is a spheroid that cavity is arranged, and does 90 by valve rod control spheroid.Rotation makes valve opening or closes because fluid resistance is little, (its channel diameter equals internal diameter of the pipeline) switch rapidly, convenient, long, high having obtained of reliability of life-span used widely.
The seal form of existing ball valve is varied, concludes and gets up to mainly contain following two kinds.
1, the common floating ball valve of soft face seal
The characteristics of common valve seat globe valve are: under pretightening force or fluid pressure action, (material mostly is special plastics to valve seat, as purt etc.) compress with spheroid, and make seat material produce the resilient plastic distortion and reach sealing, its sealing effect depends on that valve seat under the effect of hydrodynamic pressure or pretightening force, can compensate the degree of spheroid out of roundness and surface microscopic injustice.In addition, after the ball valve assembling and setting was good, the pretightening force on the sealing surface was just fixing, but after ball valve uses a period of time, because the wearing and tearing of valve seat, and the plasticity residual deformation, the valve seat that fits tightly and spheroid will be gradually loose, seal pressure also will reduce gradually and seepage take place.
2, stiff dough sealing high temperature fixing ball valve
The characteristics of stiff dough sealing high temperature fixing ball valve are: its feature is that valve body, spheroid and valve seat all are to make with metallic material, valve seat is metal or heat resisting alloy, (mainly being to carry oar material, particle media) seat material adopts the advantage of metal to metal seal pair to be: the Applicable temperature scope is wide, the thermal expansion coefficient of various metallic material is more or less the same, as long as select for use proper, can reach basically identical, help coordinating temperature deformation.Shortcoming is the metal material hardness height, and the specific pressure that reaches sealing is also high, in the lower occasion of pressure, is difficult to reach by the pressure of fluid the effect of sealing, even if adopt pretightening force to reach sealing, but because of seal pressure is bigger, the keying torque of ball valve is also big.
Summary of the invention
In order to overcome the deficiency of existing ball valve technology, the invention provides a kind of ball valve, advantage of its existing existing soft face seal and stiff dough sealing, and behind the prooving of valve seat, can access the elastic packing ball valve of automatic compensation gap.
To achieve the above object, solution of the present utility model is: be provided with combined elastic valve seat (generally by stainless steel horsestone China ink or asbestos slate) at Zuo Tizhong, its sealed end contacts with spheroid, pressure ring places the upper end of combined elastic seal ring, bolt passes pressure ring and links to each other with left body, the combined elastic valve seat is by multiple layer metal and the nonmetal superimposed body of forming of multilayer, on the connecting bolt of left body and right body, be provided with belleville spring one end and contact, offer place's window bolt in the side of right body and pass shrouding and be connected with right body with nut.
After adopting such scheme, form with nonmetallic ring because the elasticity stack valve seat is a metal, feasible the remaining with spheroid of its crooked slightly situation contacts or expands.
The belleville spring of peripheral hardware not only can access automatic compensation gap and create advantage behind the prooving of valve seat, can also avoid the fluctuation of high-temperature and produce the valve valve seat and danger that the spheroid jam can't open and close.
For the way of on valve body, offering place's window, can under the situation of not dismantling valve, on pipeline, carry out necessary cleaning to valve, make maintenance service convenient easily.
Description of drawings
Below in conjunction with accompanying drawing a kind of ball valve of the utility model is described further.
Fig. 1 is the sectional drawing of commercially available soft face seal ordinary ball valve
Fig. 2 is the sectional drawing of commercially available stiff dough sealing high temperature fixing ball valve
Fig. 3 is the section of structure of a kind of ball valve of the utility model
Fig. 4 is the section of structure of a kind of ball valve of the utility model
Fig. 5 is the A-A place structure for amplifying sectional drawing of Fig. 3
Fig. 6 is the right body side surface window structure sectional drawing of Fig. 3 along the valve body central axis
Fig. 7 is that Fig. 3 Fig. 4 amplifies B-B place section of structure
Illustrated label is: 1, right body, 2, left body, 3, valve shaft, 4, spheroid, 5, the combined elastic valve seat, 6, screw, 7, pressure ring, 8, bolt, 9, nut, 10, belleville spring, 11, shrouding, 12, bolt, 13, window.
Embodiment
In left body (2), be provided with and use the combined elastic valve seat of making by stainless steel horsestone China ink or asbestos slate (5), its sealed end contacts with spheroid (4), pressure ring (7) places the upper end of combined elastic valve seat (5), screw (6) passes pressure ring (7) and links to each other with left body (2), left side body (2) is provided with belleville spring (10) one end with the connecting bolt (8) of right body (1) and contacts with nut (9), the side of right body (1) is offered place's window (13) bolt (12) and is passed shrouding (11) and be connected with right body (1), has good seal performance, long service life, advantage such as easy to maintenance.
Claims (4)
1. ball valve, mainly form by left and right sides valve body, spheroid, combined elastic valve seat, valve shaft etc., feature of the present invention is: be provided with combined elastic valve seat (5) in left body (2), its sealed end contacts with spheroid (4), pressure ring (7) places the upper end of combined elastic valve seat (5), and screw (6) passes pressure ring (7) and links to each other with left body (2).
2. a kind of ball valve according to claim 1 is characterized in that: described combined elastic valve seat (5) is by multiple layer metal and the nonmetal superimposed body of forming of multilayer.
3. outer a kind of ball valve according to claim 1 is characterized in that: be provided with belleville spring (10) one end and contact with nut (9) on the connecting bolt (8) of left body (2) and right body (1).
4. a kind of ball valve according to claim 1 is characterized in that: offer a window (13) bolt (12) in the side of right body (1) and pass shrouding (11) and be connected with right body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206403126U CN201851703U (en) | 2010-11-22 | 2010-11-22 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206403126U CN201851703U (en) | 2010-11-22 | 2010-11-22 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851703U true CN201851703U (en) | 2011-06-01 |
Family
ID=44094094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206403126U Expired - Fee Related CN201851703U (en) | 2010-11-22 | 2010-11-22 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478117A (en) * | 2010-11-22 | 2012-05-30 | 项美根 | Ball valve |
-
2010
- 2010-11-22 CN CN2010206403126U patent/CN201851703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478117A (en) * | 2010-11-22 | 2012-05-30 | 项美根 | Ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huangshan Liangye Valve Co., Ltd. Assignor: Xiang Meigen Contract record no.: 2011340000111 Denomination of utility model: Making method and improved structure of ball valve seat Granted publication date: 20110601 License type: Exclusive License Record date: 20110711 |
|
| ASS | Succession or assignment of patent right |
Owner name: HUANGSHAN LIANGYE VALVE CO., LTD. Free format text: FORMER OWNER: XIANG MEIGEN Effective date: 20120121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120121 Address after: 245041, Anhui province Tunxi Huangshan City Yang Xin Industrial Park Patentee after: Huangshan Liangye Valve Co., Ltd. Address before: 245041, Anhui Tunxi District, Huangshan City Province, Xin Xin Industrial Park, Mount Huangshan Liang valve Co., Ltd. Patentee before: Xiang Meigen |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |