CN107461512A - A kind of hard sealing double eccentric half ball valve - Google Patents
A kind of hard sealing double eccentric half ball valve Download PDFInfo
- Publication number
- CN107461512A CN107461512A CN201710903543.8A CN201710903543A CN107461512A CN 107461512 A CN107461512 A CN 107461512A CN 201710903543 A CN201710903543 A CN 201710903543A CN 107461512 A CN107461512 A CN 107461512A
- Authority
- CN
- China
- Prior art keywords
- valve
- seal
- half ball
- double eccentric
- valve seat
- 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.)
- Withdrawn
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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
- F16K5/0647—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
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention provides a kind of hard sealing double eccentric half ball valve, is related to valve seal technical field, including valve rod, valve body, filler, bearing, adjust pad, valve base seal, seal spool part, insert body, valve seat gland, bearing, lower axle, gasket seal.The present invention reduces the abrasion between valve seat and valve element by two bias, improves semisphere valve service life；It is connected through a screw thread between valve seat gland and valve body, and adjust pad is placed between valve seat gland and valve body, is made adjust pad that elastic deformation occur by the extruding of valve seat gland, allow valve seat to be in close contact with valve element, so as to prevent dielectric leakage；Valve base seal of the present invention, seal spool part are used as seal using cermet, the characteristics of with wear-resistant, corrosion-resistant, Anti-erosion, good seal performance, long service life.
Description
Technical field
The present invention relates to valve seal technical field, and in particular to a kind of hard sealing double eccentric half ball valve.
Background technology
Valve is the medium conveying apparatus being widely used in the industries such as oil, chemical industry, papermaking and sewage disposal.By institute
Pumped (conveying) medium often has corrosivity, and contains a large amount of solid particles, causes sealing surface easily to corrode and wear, causes sealing pair
, there is dielectric leakage, has a strong impact on valve service life in failure.Existing valve generally use Surface hardening treatment improves valve
Wear-resistant, corrosion resistance characteristic, but its life-span, cost and sealing property are still reached to less than requirement.
The content of the invention
(1) technical problem solved
The present invention is in order to overcome wear-resistant above-mentioned valve, defect problem existing for corrosion-resistant, sealing and service life, this
Invention is using cermet as seal, it is proposed that a kind of hard sealing double eccentric half ball valve, the double eccentric half ball valve have resistance to
The characteristics of abrasion, corrosion-resistant, Anti-erosion, good seal performance, long service life.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of hard sealing double eccentric half ball valve, including valve rod, valve body, bearing, valve base seal, seal spool part, valve element
Body, valve seat gland, bearing, lower axle；The valve rod is connected by bearing with insert body, and insert body is also by bearing with
Axle is connected, and the valve rod, lower axle are connected with valve body respectively；The valve base seal, seal spool part be arranged on valve seat gland with
Between insert body, the valve seat gland is flexibly connected with valve body.
Further, the valve seat gland is connected with valve body with thread forms.
Further, adjust pad is installed between the valve seat gland and valve body.
Further, the adjust pad is teflon gasket.
Further, the valve base seal is cermet seal.
Further, the seal spool part is cermet seal.
Further, filler is filled between the valve rod and valve body.
Further, the filler is asbestos, soft graphite or polytetrafluoroethylene (PTFE).
Further, gasket seal is installed between the lower axle and valve body.
Further, the gasket seal is teflon gasket.
(3) beneficial effect
Beneficial effects of the present invention：A kind of hard sealing double eccentric half ball valve, valve seat and valve element are reduced by two bias
Between abrasion, improve semisphere valve service life；Be connected through a screw thread between valve seat gland and valve body, and valve seat gland with
Adjust pad is placed between valve body, makes adjust pad that elastic deformation occur by the extruding of valve seat gland, makes valve seat close with valve element
Contact, so as to prevent dielectric leakage；Valve base seal of the present invention, seal spool part, as seal, are had using cermet
The characteristics of wear-resistant, corrosion-resistant, Anti-erosion, good seal performance, long service life.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is double eccentric half ball valve structure chart of the present invention.
In figure, 1 valve rod, 2 fillers, 3 valve bodies, 4 bearings, 5 adjust pads, 6 valve base seals, 7 seal spool parts, 8 valve elements
Body, 9 valve seat glands, 10 bearings, 11 lower axles, 12 gasket seals.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
With reference to Fig. 1, a kind of hard sealing double eccentric half ball valve, including valve rod 1, valve body 2, filler 3, bearing 4, adjust pad 5,
Valve base seal 6, seal spool part 7, insert body 8, valve seat gland 9, bearing 10, lower axle 11, gasket seal 12.
Valve rod 1 is connected by bearing 4 with insert body 8, and insert body 8 is also connected by bearing 10 with lower axle 11, valve rod
1st, lower axle 11 is connected with valve body 2 respectively.Filler 3 is filled between valve rod 1 and valve body 2, filler 3 can be asbestos, soft graphite
Or polytetrafluoroethylene (PTFE).Gasket seal 12 is installed, gasket seal 12 can be polytetrafluoroethylene (PTFE) pad between lower axle 11 and valve body 2
Piece.Valve base seal 6, seal spool part 7 are arranged between valve seat gland 9 and insert body 8, valve base seal 6, seal spool
Part 7 is respectively cermet seal.Valve seat gland 9 is flexibly connected with valve body 2, and valve seat gland 9 can be with screw thread shape with valve body 2
Formula connects.Adjust pad 5 is installed, adjust pad 5 can be teflon gasket between valve seat gland 9 and valve body 2.
Double eccentric structures refer to that the valve element centre of gyration and the geometric center of valve channel axis and valve core sealed cover have partially
Put.Semisphere valve makes valve element opening-closing process have the function that gradually to go out to depart to valve seat and is fade-in extruding by two bias, reduces
Abrasion between valve seat and valve element, improve the semisphere valve life-span.Seal spool part and insert body form an entirety, and valve seat is close
Front cover is that circular conical surface, valve element are spherical.
In summary, the embodiment of the present invention, the abrasion between valve seat and valve element is reduced by two bias, improves half
Ball valve service life；It is connected through a screw thread between valve seat gland and valve body, and adjusting pad is placed between valve seat gland and valve body
Piece, make adjust pad that elastic deformation occur by the extruding of valve seat gland, allow valve seat to be in close contact with valve element, so as to prevent medium from letting out
Leakage；Valve base seal of the present invention, seal spool part, as seal, have wear-resistant, corrosion-resistant, anti-impact using cermet
The characteristics of erosion, good seal performance, long service life.
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.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
- A kind of 1. hard sealing double eccentric half ball valve, it is characterised in that：Including valve rod (1), valve body (2), bearing (4), valve base sealing Part (6), seal spool part (7), insert body (8), valve seat gland (9), bearing (10), lower axle (11)；The valve rod (1) passes through Bearing (4) is connected with insert body (8), and insert body (8) is also connected by bearing (10) with lower axle (11), the valve rod (1), Lower axle (11) is connected with valve body (2) respectively；The valve base seal (6), seal spool part (7) be arranged on valve seat gland (9) with Between insert body (8), the valve seat gland (9) is flexibly connected with valve body (2).
- A kind of 2. hard sealing double eccentric half ball valve as claimed in claim 1, it is characterised in that：The valve seat gland (9) and valve Body (2) is connected with thread forms.
- A kind of 3. hard sealing double eccentric half ball valve as claimed in claim 2, it is characterised in that：The valve seat gland (9) and valve Adjust pad (5) is installed between body (2).
- A kind of 4. hard sealing double eccentric half ball valve as claimed in claim 3, it is characterised in that：The adjust pad (5) is poly- Tetrafluoroethene pad.
- A kind of 5. hard sealing double eccentric half ball valve as claimed in claim 1, it is characterised in that：The valve base seal (6) is Cermet seal.
- A kind of 6. hard sealing double eccentric half ball valve as claimed in claim 1, it is characterised in that：The seal spool part (7) is Cermet seal.
- A kind of 7. hard sealing double eccentric half ball valve as claimed in claim 1, it is characterised in that：The valve rod (1) and valve body (2) Between be filled with filler (3).
- A kind of 8. hard sealing double eccentric half ball valve as claimed in claim 7, it is characterised in that：The filler (3) is asbestos, soft Property graphite or polytetrafluoroethylene (PTFE).
- A kind of 9. hard sealing double eccentric half ball valve as claimed in claim 1, it is characterised in that：The lower axle (11) and valve body (2) gasket seal (12) is installed between.
- A kind of 10. hard sealing double eccentric half ball valve as claimed in claim 9, it is characterised in that：The gasket seal (12) is Teflon gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710903543.8A CN107461512A (en) | 2017-09-29 | 2017-09-29 | A kind of hard sealing double eccentric half ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710903543.8A CN107461512A (en) | 2017-09-29 | 2017-09-29 | A kind of hard sealing double eccentric half ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461512A true CN107461512A (en) | 2017-12-12 |
Family
ID=60553720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710903543.8A Withdrawn CN107461512A (en) | 2017-09-29 | 2017-09-29 | A kind of hard sealing double eccentric half ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461512A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608296A (en) * | 2019-09-11 | 2019-12-24 | 昆山维萨阀门股份有限公司 | Hemispherical metal sealing fixed ball valve with jacket |
-
2017
- 2017-09-29 CN CN201710903543.8A patent/CN107461512A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608296A (en) * | 2019-09-11 | 2019-12-24 | 昆山维萨阀门股份有限公司 | Hemispherical metal sealing fixed ball valve with jacket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171212 |