CN106641295A - High-temperature-resisting check and stop valve - Google Patents
High-temperature-resisting check and stop valve Download PDFInfo
- Publication number
- CN106641295A CN106641295A CN201510713092.2A CN201510713092A CN106641295A CN 106641295 A CN106641295 A CN 106641295A CN 201510713092 A CN201510713092 A CN 201510713092A CN 106641295 A CN106641295 A CN 106641295A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve element
- inner chamber
- face
- shaft shoulder
- 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
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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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a high-temperature-resisting check and stop valve which comprises a valve body, a valve base, a valve rod and a valve element. The valve body comprises an inner cavity, a fluid feeding channel and a fluid drainage channel. The valve element is arranged in the inner cavity and comprises a shaft shoulder at the upper end and a conical sealing base at the lower end. The shaft shoulder stretches into a cavity at the lower end of the valve rod, and the conical sealing base and a valve element installation hole are cooperated so as to enable the fluid feeding channel to communicate with the inner cavity or isolate from the inner cavity. The end face of the lower end of the valve rod and the end face of the upper end of the conical sealing base of the valve element are provided with a compressions spring. According to the further improvement, the upper end face of the cavity at the lower end of the valve rod and the corresponding upper end face of the shaft shoulder of the valve element are provided with a spherical groove and a spherical protrusion which can be matched with each other. A conical face sealing structure is formed between the conical sealing base of the valve element and the valve element installation hole. The upper sealing face of the valve element installation hole is provided with a wear-resisting and high-temperature-resisting coating. The high-temperature-resisting check and stop valve is resistant to wear and high temperatures, has the functions of both a stop valve and a check valve, improves the pipeline installation efficiency, saves the cost, avoids the leakage problem existing in secondary installation, and is reliable and durable.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of stop valve.
Background technology
In traditional Pipe installing, in order to control the backflow phenomenon of pumped (conveying) medium and feed flow is controlled, typically a check-valves and a stop valve are installed on conveying branch road；In order to realize above-mentioned technique effect, a check-valves and a stop valve are installed simultaneously on pipeline, its operation is comparatively laborious and relatively costly, and secondary installing has the hidden danger of leakage.Chinese patent application publication No. CN 103953733A is disclosed a kind of " novel cutoff valve "：Valve element can slide up and down to installed in valve rod lower end and in fluid passage top, in a free state, valve element sealing liquid passage under Gravitative Loads；Under feed flow working condition, the fluid pressure of feed liquor port promotes valve element to move to open fluid passage upwards more than the fluid pressure of outlet end mouth under hydraulic action；Under cut-off working condition, the fluid pressure of feed liquor port promotes valve element to move downward with sealing liquid passage less than the fluid pressure of outlet end mouth under the Gravitative Loads and hydraulic action of valve element.This stop valve, with two kinds of functions of stop valve and check-valves, improves Pipe installing efficiency, has saved cost, but in the presence of column defects：Under cut-off working condition, because the fluid pressure of feed liquor port, the fluid pressure of outlet end mouth fluctuate, it is possible to which occurring in the fluid passage closed under the Gravitative Loads and hydraulic action of valve element can be interrupted opening, it is impossible to reliably ensure non-return effect.
The content of the invention
The present invention is directed to the deficiencies in the prior art, proposes a kind of high temperature resistant stop valve for reliably ensureing non-return effect.
The present invention is achieved through the following technical solutions technical goal.
High temperature resistant stop valve, including valve body, valve seat, valve rod and valve element；The valve body includes inner chamber, the feed pathway of inner chamber both sides and liquid outlet channel；The inner chamber is connected with liquid outlet channel；The dividing plate of horizontal is provided between inner chamber, the feed pathway of the valve body, dividing plate is provided with valve element installing hole to connect the feed pathway of the inner chamber bottom on top；The valve seat is arranged on valve body, and valve rod is arranged on valve seat in vertical direction；The valve element is placed in inner chamber, including the shaft shoulder, the conical sealing seat of lower end of upper end, and the shaft shoulder is stretched into the cavity of valve rod lower end, and can be slided up and down in cavity, and conical sealing seat coordinates with valve element installing hole can connect or separate feed pathway and inner chamber；It is theed improvement is that：The valve rod lower end surface is provided with compression spring with valve element conical sealing seat upper end end face.
In said structure, the valve rod lower end cavity upper surface and corresponding valve element shaft shoulder upper surface are respectively equipped with ball recess, the hemisphere jut that can coordinate.
It is in conical surface sealing structure between the valve element conical sealing seat and valve element installing hole in said structure, sealing surface is provided with wear-resisting, high-temperaure coating on valve element installing hole.
When the present invention is used, under feed flow working condition, the fluid pressure of feed pathway promotes valve element to move to connect feed pathway and inner chamber upwards more than the summation of the pressure that liquid outlet channel fluid pressure, the pressure of valve element Gravitative Loads, compression spring are acted under hydraulic action；Under cut-off working condition, valve element is promoted to move downward to separate feed pathway and inner chamber under compression spring effect, the Gravitative Loads of valve element and hydraulic action；Certainly, also a kind of more thoroughly cut-off working condition, moves downward valve element, makes the hemisphere jut of the ball recess compressing valve element shaft shoulder upper surface of valve rod lower end cavity upper surface, valve element conical sealing seat is more reliably sealed with the sealing surface of valve element installing hole.
The present invention compared with prior art, has the positive effect that：
1st, when feed pathway stops feed flow, promote valve element to move downward to separate feed pathway and inner chamber under compression spring effect, the Gravitative Loads of valve element and hydraulic action, reach non-return valve action, improve Pipe installing efficiency, cost is saved, it is to avoid the leakage problem that secondary installing is present.
2nd, valve rod lower end surface and valve element conical sealing seat upper end end face are provided with compression spring, under cut-off working condition, valve element is promoted to move downward to separate feed pathway and inner chamber under compression spring effect, the Gravitative Loads of valve element and hydraulic action, due to increased compression spring, the reliability of non-return of the present invention is significantly improved.
3rd, valve rod lower end cavity upper surface and corresponding valve element shaft shoulder upper surface are respectively equipped with ball recess, the hemisphere jut that can coordinate, when using, move downward valve element, make the hemisphere jut of the ball recess compressing valve element shaft shoulder upper surface of valve rod lower end cavity upper surface, so, can adjust automatically valve element position, valve element conical sealing seat is more reliably sealed with the sealing surface of valve element installing hole.
4th, it is in conical surface sealing structure between valve element conical sealing seat and valve element installing hole, sealing surface is provided with wear-resisting, high-temperaure coating on valve element installing hole, is remarkably improved wear-resisting, the resistance to elevated temperatures of the present invention.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is I enlarged schematic partial view in Fig. 1.
Specific embodiment
Below according to accompanying drawing and in conjunction with the embodiments the invention will be further described.
High temperature resistant stop valve shown in the drawings, including valve body 1, valve seat 2, valve rod 3 and valve element 4；Valve body 1 includes inner chamber 1.1, the feed pathway 1.2 of the both sides of inner chamber 1.1 and liquid outlet channel 1.3；Inner chamber 1.1 is connected with liquid outlet channel 1.3；The dividing plate 1.4 of horizontal is provided between inner chamber 1.1, the feed pathway 1.2 of valve body 1, dividing plate 1.4 is provided with valve element installing hole 1.4.1 to connect the feed pathway 1.2 of the inner chamber 1.1, bottom on top；Valve seat 2 is arranged on valve body 1, and valve rod 3 is arranged on valve seat 2 in vertical direction；Valve element 4 is placed in inner chamber 1.1, including the conical sealing seat 4.2 of the shaft shoulder 4.1, lower end of upper end, the shaft shoulder 4.1 is stretched into the lower end cavity of valve rod 3, and can be slided up and down in cavity, and conical sealing seat 4.2 coordinates with valve element installing hole 1.4.1 can connect or separate feed pathway 1.2 and inner chamber 1.1；The lower end surface of valve rod 3 is provided with compression spring 5 with the upper end end face of 4 conical sealing seat of valve element 4.2.
The lower end cavity upper surface of valve rod 3 and the corresponding upper surface of 4 shaft shoulder of valve element 4.1 are respectively equipped with ball recess, the hemisphere jut that can coordinate.
It is in conical surface sealing structure between the conical sealing seat 4.2 of valve element 4 and valve element installing hole 1.4.1, sealing surface is provided with wear-resisting, high-temperaure coating 1.4.1.1 on valve element installing hole 1.4.1.
Under feed flow working condition, the fluid pressure of feed pathway 1.2 promotes valve element 4 to move to connect feed pathway 1.2 and inner chamber 1.1 upwards more than the summation of the pressure that the fluid pressure of liquid outlet channel 1.3, the pressure of the Gravitative Loads of valve element 4, compression spring 5 are acted under hydraulic action；Under cut-off working condition, act in compression spring 5, promote valve element 4 to move downward to separate feed pathway and inner chamber under the Gravitative Loads of valve element 4 and hydraulic action；Certainly, also a kind of more thoroughly cut-off working condition, valve element 4 is moved downward, the hemisphere jut of the upper surface of 4 shaft shoulder of ball recess compressing valve element 4.1 of the lower end cavity upper surface of valve rod 3 is made, the conical sealing seat 4.2 of valve element 4 is more reliably sealed with the sealing surface of valve element installing hole 1.4.1.
Claims (3)
1. a kind of high temperature resistant stop valve, including valve body（1）, valve seat（2）, valve rod（3）And valve element（4）；The valve body（1）Including inner chamber（1.1）, inner chamber（1.1）The feed pathway of both sides（1.2）And liquid outlet channel（1.3）；The inner chamber（1.1）With liquid outlet channel（1.3）Connection；The valve body（1）Inner chamber（1.1）, feed pathway（1.2）Between be provided with the dividing plate of horizontal（1.4）, dividing plate（1.4）It is provided with valve element installing hole（1.4.1）To connect the inner chamber on top（1.1）, bottom feed pathway（1.2）；The valve seat（2）Installed in valve body（1）On, valve rod（3）Valve seat is arranged in vertical direction（2）On；The valve element（4）It is placed in inner chamber（1.1）It is interior, including the shaft shoulder of upper end（4.1）, lower end conical sealing seat（4.2）, the shaft shoulder（4.1）Stretch into valve rod（3）In the cavity of lower end, and can slide up and down in cavity, conical sealing seat（4.2）With valve element installing hole（1.4.1）Cooperation can connect or separate feed pathway（1.2）And inner chamber（1.1）；It is characterized in that：The valve rod（3）Lower end surface and valve element（4）Conical sealing seat（4.2）Upper end end face is provided with compression spring（5）.
2. high temperature resistant stop valve according to claim 1, it is characterised in that：The valve rod（3）Lower end cavity upper surface and corresponding valve element（4）The shaft shoulder（4.1）Upper surface is respectively equipped with ball recess, the hemisphere jut that can coordinate.
3. high temperature resistant stop valve according to claim 1 and 2, it is characterised in that：The valve element（4）Conical sealing seat（4.2）With valve element installing hole（1.4.1）Between be in conical surface sealing structure, valve element installing hole（1.4.1）Upper sealing surface is provided with wear-resisting, high-temperaure coating（1.4.1.1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713092.2A CN106641295A (en) | 2015-10-28 | 2015-10-28 | High-temperature-resisting check and stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713092.2A CN106641295A (en) | 2015-10-28 | 2015-10-28 | High-temperature-resisting check and stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106641295A true CN106641295A (en) | 2017-05-10 |
Family
ID=58816195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510713092.2A Pending CN106641295A (en) | 2015-10-28 | 2015-10-28 | High-temperature-resisting check and stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644397A (en) * | 2018-08-08 | 2018-10-12 | 百强阀门集团有限公司 | Depressurize shut-off valve |
| WO2018223588A1 (en) * | 2017-06-09 | 2018-12-13 | 四川行之智汇知识产权运营有限公司 | Discharge valve for nuclear island |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4945941A (en) * | 1990-03-05 | 1990-08-07 | Vilter Manufacturing Corporation | Means to reduce vibration in check valves and stop/check valves caused by pulsating low fluid flow |
| CN2720204Y (en) * | 2004-08-16 | 2005-08-24 | 浙江盾安华强机械有限公司 | Stopping non-return valve |
| CN202280884U (en) * | 2011-08-29 | 2012-06-20 | 江苏河海新能源有限公司 | Stop-check valve |
| CN202302293U (en) * | 2011-10-18 | 2012-07-04 | 天津国际机械有限公司 | Spherical connecting device used on three-way shutoff valve |
| CN202646807U (en) * | 2012-05-25 | 2013-01-02 | 辉煌水暖集团有限公司 | Stop check valve |
| CN103953733A (en) * | 2014-04-14 | 2014-07-30 | 安徽正石新型建材有限公司 | Novel stop valve |
| CN205260879U (en) * | 2015-10-28 | 2016-05-25 | 江苏海达船用阀业有限公司 | High temperature resistant non return stop valve |
-
2015
- 2015-10-28 CN CN201510713092.2A patent/CN106641295A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4945941A (en) * | 1990-03-05 | 1990-08-07 | Vilter Manufacturing Corporation | Means to reduce vibration in check valves and stop/check valves caused by pulsating low fluid flow |
| CN2720204Y (en) * | 2004-08-16 | 2005-08-24 | 浙江盾安华强机械有限公司 | Stopping non-return valve |
| CN202280884U (en) * | 2011-08-29 | 2012-06-20 | 江苏河海新能源有限公司 | Stop-check valve |
| CN202302293U (en) * | 2011-10-18 | 2012-07-04 | 天津国际机械有限公司 | Spherical connecting device used on three-way shutoff valve |
| CN202646807U (en) * | 2012-05-25 | 2013-01-02 | 辉煌水暖集团有限公司 | Stop check valve |
| CN103953733A (en) * | 2014-04-14 | 2014-07-30 | 安徽正石新型建材有限公司 | Novel stop valve |
| CN205260879U (en) * | 2015-10-28 | 2016-05-25 | 江苏海达船用阀业有限公司 | High temperature resistant non return stop valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018223588A1 (en) * | 2017-06-09 | 2018-12-13 | 四川行之智汇知识产权运营有限公司 | Discharge valve for nuclear island |
| CN108644397A (en) * | 2018-08-08 | 2018-10-12 | 百强阀门集团有限公司 | Depressurize shut-off valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |