CN103994233A - Single-seat valve - Google Patents
Single-seat valve Download PDFInfo
- Publication number
- CN103994233A CN103994233A CN201410202270.0A CN201410202270A CN103994233A CN 103994233 A CN103994233 A CN 103994233A CN 201410202270 A CN201410202270 A CN 201410202270A CN 103994233 A CN103994233 A CN 103994233A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- seat
- elastomer seal
- lip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a single-seat valve which comprises a valve core (1) and a valve seat (2). The single-seat valve is characterized in that the valve seat (2) comprises a valve seat base (4), an annular installation groove is formed in the top end face of the valve seat base (4), a lip-type elastic sealing piece (3) is fixedly installed in the installation groove, and the position of an opening of the lip-type elastic sealing piece (3) faces the valve seat base (4). After being tried out, it is proved that after a sealing structure is adopted in an APS high-pressure single-seat control valve, the component sealing effect of the valve core and the valve seat is obviously improved, the tightly-cut requirement is easily met through the whole control valve, and zero leakage is achieved.
Description
Technical field
The present invention relates to a kind of single-seat valve.
Background technique
As shown in Figure 1, traditional single seat control valve structure is mainly the control that coordinates to realize leakage rate by the valve line close contact between spool and seal valve seat, sealing surface place at medium by spool and seal valve seat is owing to producing certain leakage rate, if actuator stem force is little or the roughness of seal valve seat and valve core sealed cover, form and position tolerance do not reach requirement, its leakage rate is difficult to meet the requirement of featuring rigid cutting-off zero leakage.
Summary of the invention
The object of this invention is to provide a kind of single-seat valve, can in the time of High Pressure Difference, realize featuring rigid cutting-off.
A kind of single-seat valve, comprise spool and valve seat, its specialization is: described valve seat comprises valve seat matrix, on the top end of this valve seat matrix, have the mounting groove of a ring-type, in this mounting groove, be installed with a lip formula elastomer seal, and the opening of this lip formula elastomer seal is towards valve seat matrix.
Wherein a side of lip formula elastomer seal is welded in the mounting groove of valve seat matrix.
Wherein lip formula elastomer seal adopts nickel base superalloy material.
The valve line sealing angle of wherein said valve seat is 40 °, and the sealing angle of lip formula elastomer seal is 38 °.
Through probationary certificate, adopt after sealing configuration of the present invention at APS high pressure single seat control valve, spool and valve base part sealing effect obviously improve, and complete machine control valve leaks the requirement that is easy to meet featuring rigid cutting-off, has realized zero leakage.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of background technique in the present invention;
Accompanying drawing 2 is structural representation of the present invention;
Accompanying drawing 3 is the structural representation of valve seat 2 parts in the present invention.
Embodiment
As shown in Figure 2,3, the present invention is a kind of single-seat valve, comprise spool 1 and valve seat 2, described valve seat 2 comprises a valve seat matrix 4, on the top end of this valve seat matrix 4, have the mounting groove of a ring-type, in this mounting groove, be installed with one (ring-type) lip formula elastomer seal 3, and the opening of this lip formula elastomer seal 3 is towards valve seat matrix 4.Concrete mounting type is that a side of lip formula elastomer seal 3 is welded in the mounting groove of valve seat matrix 4.
Working principle of the present invention is:
As shown in Figure 2, medium enters from control valve left side, is realized and being cut off by spool 1, valve seat 2 parts (integrally welded by lip formula elastomer seal 3 and valve seat matrix 4) throttling.Control valve is in closing process, first spool 1 sealing surface contacts and produces resiliently deformable with lip formula elastomer seal 3, last until spool 1 contacts with valve seat matrix 4, lip formula elastomer seal 3 is along with pressure medium raises, contact tightr with spool 1 sealing surface, sealing more reliably, tighter, in the process of closing, valve seat matrix 4 and spool 1 sealing surface play once decompression and throttling action, once leak a small amount of medium of coming and thoroughly cut off by spool 1 and lip formula elastomer seal 3, realize featuring rigid cutting-off effect.
Claims (4)
1. a single-seat valve, comprise spool (1) and valve seat (2), it is characterized in that: described valve seat (2) comprises valve seat matrix (4), on the top end of this valve seat matrix (4), have the mounting groove of a ring-type, in this mounting groove, be installed with a lip formula elastomer seal (3), and the opening of this lip formula elastomer seal (3) is towards valve seat matrix (4).
2. a kind of single-seat valve as claimed in claim 1, is characterized in that: wherein a side of lip formula elastomer seal (3) is welded in the mounting groove of valve seat matrix (4).
3. a kind of single-seat valve as claimed in claim 1 or 2, is characterized in that: wherein lip formula elastomer seal (3) adopts nickel base superalloy material.
4. a kind of single-seat valve as described in any one in claims 1 to 3, is characterized in that: the valve line sealing angle of wherein said valve seat (2) is 40 °, and the sealing angle of lip formula elastomer seal (3) is 38 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202270.0A CN103994233A (en) | 2014-05-14 | 2014-05-14 | Single-seat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202270.0A CN103994233A (en) | 2014-05-14 | 2014-05-14 | Single-seat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103994233A true CN103994233A (en) | 2014-08-20 |
Family
ID=51308488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410202270.0A Pending CN103994233A (en) | 2014-05-14 | 2014-05-14 | Single-seat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103994233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221756A (en) * | 2015-09-16 | 2016-01-06 | 浙江贝托阀门有限公司 | Stable type stop valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040075072A1 (en) * | 2002-04-18 | 2004-04-22 | Lanting Henry A. | Pressurized valve seal |
| CN102235512A (en) * | 2010-05-05 | 2011-11-09 | 江苏德邦流体控制有限公司 | Cage type single seat control valve |
| CN102900853A (en) * | 2011-07-26 | 2013-01-30 | 沙索技术有限公司 | Solids-handling equipment |
| CN103671984A (en) * | 2012-09-02 | 2014-03-26 | 姜堰市通达船用阀泵有限公司 | Chlorine valve of double-seal structure |
| CN203906809U (en) * | 2014-05-14 | 2014-10-29 | 吴忠仪表有限责任公司 | Novel single seated valve switched off precisely |
-
2014
- 2014-05-14 CN CN201410202270.0A patent/CN103994233A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040075072A1 (en) * | 2002-04-18 | 2004-04-22 | Lanting Henry A. | Pressurized valve seal |
| CN102235512A (en) * | 2010-05-05 | 2011-11-09 | 江苏德邦流体控制有限公司 | Cage type single seat control valve |
| CN102900853A (en) * | 2011-07-26 | 2013-01-30 | 沙索技术有限公司 | Solids-handling equipment |
| CN103671984A (en) * | 2012-09-02 | 2014-03-26 | 姜堰市通达船用阀泵有限公司 | Chlorine valve of double-seal structure |
| CN203906809U (en) * | 2014-05-14 | 2014-10-29 | 吴忠仪表有限责任公司 | Novel single seated valve switched off precisely |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221756A (en) * | 2015-09-16 | 2016-01-06 | 浙江贝托阀门有限公司 | Stable type stop valve |
| CN105221756B (en) * | 2015-09-16 | 2018-04-27 | 浙江贝托阀门有限公司 | Stable type shut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140820 |
|
| RJ01 | Rejection of invention patent application after publication |