CN104265909A - Novel needle type stop valve - Google Patents
Novel needle type stop valve Download PDFInfo
- Publication number
- CN104265909A CN104265909A CN201410496850.5A CN201410496850A CN104265909A CN 104265909 A CN104265909 A CN 104265909A CN 201410496850 A CN201410496850 A CN 201410496850A CN 104265909 A CN104265909 A CN 104265909A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- described valve
- groove
- center line
- 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
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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
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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
- 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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a novel needle type stop valve. The novel needle type stop valve comprises a valve body, a valve cover, a valve rod, a valve seat and a valve element, wherein a groove which vertically extends is formed in the bottom of a valve cavity, a center line of the groove and a center line of the valve cavity are located on the same straight line, a first through hole is formed in one side of the groove, a center line of the first through hole forms an angle which is 70 degrees with the center line of the valve cavity, opening and closing the valve body are achieved through matching between the valve element and the groove, the valve element is tapered, a seal surface, matched with the groove, of the valve element is provided with a V-shaped annular groove, an annular projection 11 is formed in the position of an opening of the V-shaped annular groove, and an edge of the annular projection is V-shaped. According to the novel needle type stop valve, by means of an inclined structure, reduction of fluid resistance is facilitated; seal properties are better through matching of points and matching of faces, and the condition of medium leakage is effectively avoided.
Description
Technical field
Related domain relates to a kind of stop valve, and particularly a kind of needle-like stop valve, belongs to the technical field of valve.
Background technique
The open-shut device of stop valve is the flap of stopper, sealing surface is plane or the conical surface, flap is along the center line moving linearly of valve seat, the forms of motion of valve rod, also lifting rotation rod-type is had, stop valve refers to the valve of closure member (flap) along the movement of valve seat center line, according to this mobile form of flap, the change of valve seat port is and flap stroke direct proportionality, due to such valve valve rod open or shutoff stroke relatively short, and there is cutting function very reliably, again due to the change of valve seat port and the stroke direct proportionality of flap, be very suitable for the adjustment to flow, therefore, such stop valve valve that dams is suitable as and cuts off or regulate and throttling use very much.
Stop valve of the prior art, comprise valve seat, valve body, valve rod, be arranged on the spool on valve rod, spool is rod-like structure, described valve rod to be arranged in valve body and to coordinate with described valve seal, valve seat is provided with passage, described valve body is provided with gas-entered passageway and outlet passageway, and gas-entered passageway and outlet passageway communicate with described passage, is controlled the opening degree of gas-entered passageway and outlet passageway by spool, convection cell regulates, the modulating valve of this structure, because spool is rod-like structure, its face of being sealed and matched is plane, during long-time running, sealing reliability is not strong.
Current stop valve in use finds to have shortcoming:
1, fluid resistance is large, and during opening and closing, required power is larger.
2, stop valve and pipeline junction, easily reveal.
3, Long-Time Service, sealing reliability is not strong.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of good seal performance, the simple needle-like stop valve of structure.
In order to solve the problems of the technologies described above, a kind of Novel needle shutoff valve of the present invention, comprise valve body, valve gap, valve rod, valve seat and spool, wherein, described valve inner central position is provided with valve pocket, and described valve seat is fixed on above described valve pocket; Described valve gap is fixed on valve seat top; Described valve rod one end is through described valve gap, and be positioned at described valve body, described valve rod and described valve body are inverse-T-shaped connection, and the bottom of described valve rod is connected with described spool, and described valve rod is positioned on described valve body center line, and the described valve rod the other end is connected with handwheel;
The groove vertically extended is provided with bottom described valve pocket, described groove center line and described valve pocket center line are on the same line, described groove side is provided with the first through hole, and be provided with angle between the center line of described first through hole and described valve pocket center line, described angle is 70 °; One end of described valve body is provided with adapter; One end of described first through hole communicates with described groove, and the other end communicates with described adapter; It is inner that described spool is arranged on described valve pocket, is positioned at described slot opening place, realized the folding of valve body by coordinating between spool with described groove; Described spool is taper, and the sealing surface of described spool and described fit depressions is provided with V-ring connected in star, and described slot opening place is provided with annular protrusion 11, and the edge of described annular protrusion is V-arrangement.
Above-mentioned Novel needle shutoff valve, wherein, described adapter and described valve body joint are provided with cap nut, described cap nut one end is connected with described valve body screw thread, the described cap nut the other end is provided with the annular flange flange of convex, the connecting end that described adapter is connected with valve body is provided with the annular flange flange of evagination, and the annular flange flange of described convex matches with the annular flange flange of described evagination, and adapter and described cap nut are linked into an integrated entity.
Above-mentioned Novel needle shutoff valve, wherein, is provided with red copper pad between described adapter and described valve body junction surface.
Beneficial effect of the present invention:
1, owing to being provided with the groove vertically extended bottom described valve pocket, described groove center line and described valve pocket center line are on the same line, described groove side is provided with the first through hole, and be provided with angle between the center line of described first through hole and described valve pocket center line, described angle is 70 °; One end of described valve body is provided with adapter; One end of described first through hole communicates with described groove, and the other end communicates with described adapter; It is inner that described spool is arranged on described valve pocket, is positioned at described slot opening place, realized the folding of valve body by coordinating between spool with described groove; Described spool is taper, the sealing surface of described spool and described fit depressions is provided with V-ring connected in star, passage adopts the structure of tilting, contribute to reducing fluid resistance, according to the scientific experimentation of up to ten thousand times, when bottom two circulation road outer walls and valve pocket, vertical wall angle α is 70 degree, the resistance that fluid produces in inflow and outflow process is minimum, and tilting passage, be convenient to the pressure reducing media flow generation, while when making to open and close required power reduces greatly, improve valve stability, extend valve working life; And by point and point, face coordinates with face, makes better tightness, the situation effectively avoiding medium to occur to leak occurs.
2, because described adapter and described valve body joint are provided with cap nut, described cap nut one end is connected with described valve body screw thread, the described cap nut the other end is provided with the annular flange flange of convex, the connecting end that described adapter is connected with valve body is provided with the annular flange flange of evagination, the annular flange flange of described convex matches with the annular flange flange of described evagination, adapter and described cap nut are linked into an integrated entity, makes the connection of valve body and adapter more firm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation that the annular flange flange of convex of the present invention coordinates with the annular flange flange of described evagination.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in the figure, in order to solve the problems of the technologies described above, a kind of Novel needle shutoff valve of the present invention, comprise valve body 1, valve gap 2, valve rod 3, valve seat 4 and spool 5, described valve body 1 inner hub location is provided with valve pocket 6, and described valve seat 4 is fixed on above described valve body 1, described valve gap 2 is fixed on the top of valve seat 4, described valve rod 3 one end is through described valve gap and valve seat, be positioned at described valve body, described valve rod and described valve body are inverse-T-shaped connection, and the bottom of described valve rod is connected with described spool, described valve rod is positioned on described valve body center line, and the described valve rod the other end is connected with handwheel 7, the groove 8 vertically extended is provided with bottom described valve pocket, described groove center line and described valve pocket center line are on the same line, described groove 8 side is provided with the first through hole 9, and be provided with angle between the center line of described first through hole 9 and described valve pocket center line, described angle α is 70 °, one end of described valve body is provided with adapter 10, one end of described first through hole communicates with described groove, and the other end communicates with described adapter, it is inner that described spool is arranged on described valve pocket, is positioned at described slot opening place, realized the folding of valve body by coordinating between spool with described groove, described spool is taper, the sealing surface of described spool and described fit depressions is provided with V-ring connected in star 16, described slot opening place is provided with annular protrusion 11, the edge of described annular protrusion is V-arrangement, described adapter 10 is provided with cap nut 12 with described valve body joint, described cap nut one end is connected with described valve body screw thread, the described cap nut the other end is provided with the annular flange flange 13 of convex, the connecting end that described adapter is connected with valve body is provided with the annular flange flange 14 of evagination, the annular flange flange of described convex matches with the annular flange flange of described evagination, adapter and described cap nut are linked into an integrated entity.Red copper pad 15 is provided with between described adapter and described valve body junction surface.
Above embodiment is only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art's foregoing according to the present invention is made and adjustment all belong to protection scope of the present invention.
Claims (3)
1. a Novel needle shutoff valve, comprises valve body, valve gap, valve rod, valve seat and spool, it is characterized in that, described valve inner central position is provided with valve pocket, and described valve seat is fixed on above described valve pocket; Described valve gap is fixed on valve seat top; Described valve rod one end is through described valve gap, and be positioned at described valve body, described valve rod and described valve body are inverse-T-shaped connection, and the bottom of described valve rod is connected with described spool, and described valve rod is positioned on described valve body center line, and the described valve rod the other end is connected with handwheel;
The groove vertically extended is provided with bottom described valve pocket, described groove center line and described valve pocket center line are on the same line, described groove side is provided with the first through hole, and be provided with angle between the center line of described first through hole and described valve pocket center line, described angle is 70 °; One end of described valve body is provided with adapter; One end of described first through hole communicates with described groove, and the other end communicates with described adapter; It is inner that described spool is arranged on described valve pocket, is positioned at described slot opening place, realized the folding of valve body by coordinating between spool with described groove; Described spool is taper, and the sealing surface of described spool and described fit depressions is provided with V-ring connected in star, and described slot opening place is provided with annular protrusion 11, and the edge of described annular protrusion is V-arrangement.
2. Novel needle shutoff valve as claimed in claim 1, it is characterized in that, described adapter and described valve body joint are provided with cap nut, described cap nut one end is connected with described valve body screw thread, the described cap nut the other end is provided with the annular flange flange of convex, the connecting end that described adapter is connected with valve body is provided with the annular flange flange of evagination, and the annular flange flange of described convex matches with the annular flange flange of described evagination, and adapter and described cap nut are linked into an integrated entity.
3. Novel needle shutoff valve as claimed in claim 1 or 2, is characterized in that, be provided with red copper pad between described adapter and described valve body junction surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496850.5A CN104265909A (en) | 2014-09-25 | 2014-09-25 | Novel needle type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496850.5A CN104265909A (en) | 2014-09-25 | 2014-09-25 | Novel needle type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265909A true CN104265909A (en) | 2015-01-07 |
Family
ID=52157463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410496850.5A Pending CN104265909A (en) | 2014-09-25 | 2014-09-25 | Novel needle type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265909A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730540A (en) * | 2018-08-23 | 2018-11-02 | 江苏华太电力仪表有限公司 | Instrument block valve |
| CN108980368A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of high intensity needle-like double nip cryogenic globe valve |
| CN110242780A (en) * | 2019-07-11 | 2019-09-17 | 沅亨流体科技（昆山）有限公司 | A kind of high pressure needle valve Fast Installation structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004044632A (en) * | 2002-07-09 | 2004-02-12 | Nippon Steel Corp | Fluid controlling device |
| CN2720201Y (en) * | 2004-06-04 | 2005-08-24 | 赵立明 | Flush-free stop valve |
| CN201568591U (en) * | 2009-12-30 | 2010-09-01 | 固安沃克流体控制有限公司 | Composite stop valve with double valve cores |
| CN201621288U (en) * | 2009-12-30 | 2010-11-03 | 固安沃克流体控制有限公司 | Two-seal surface stop valve with throttle teeth |
| WO2011055371A1 (en) * | 2009-11-08 | 2011-05-12 | Ham-Let (Israel - Canada ) Ltd. | Easily mountable needle valve |
| CN202140677U (en) * | 2011-06-21 | 2012-02-08 | 镇江市华阳机电制造有限公司 | Combination valve cover type stop valve |
| CN204114163U (en) * | 2014-09-25 | 2015-01-21 | 江苏华太电力仪表有限公司 | A kind of Novel needle shutoff valve |
-
2014
- 2014-09-25 CN CN201410496850.5A patent/CN104265909A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004044632A (en) * | 2002-07-09 | 2004-02-12 | Nippon Steel Corp | Fluid controlling device |
| CN2720201Y (en) * | 2004-06-04 | 2005-08-24 | 赵立明 | Flush-free stop valve |
| WO2011055371A1 (en) * | 2009-11-08 | 2011-05-12 | Ham-Let (Israel - Canada ) Ltd. | Easily mountable needle valve |
| CN201568591U (en) * | 2009-12-30 | 2010-09-01 | 固安沃克流体控制有限公司 | Composite stop valve with double valve cores |
| CN201621288U (en) * | 2009-12-30 | 2010-11-03 | 固安沃克流体控制有限公司 | Two-seal surface stop valve with throttle teeth |
| CN202140677U (en) * | 2011-06-21 | 2012-02-08 | 镇江市华阳机电制造有限公司 | Combination valve cover type stop valve |
| CN204114163U (en) * | 2014-09-25 | 2015-01-21 | 江苏华太电力仪表有限公司 | A kind of Novel needle shutoff valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730540A (en) * | 2018-08-23 | 2018-11-02 | 江苏华太电力仪表有限公司 | Instrument block valve |
| CN108980368A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of high intensity needle-like double nip cryogenic globe valve |
| CN110242780A (en) * | 2019-07-11 | 2019-09-17 | 沅亨流体科技（昆山）有限公司 | A kind of high pressure needle valve Fast Installation structure |
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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: 20150107 |
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| RJ01 | Rejection of invention patent application after publication |