CN104595502A - Stop valve with high sealing performance - Google Patents
Stop valve with high sealing performance Download PDFInfo
- Publication number
- CN104595502A CN104595502A CN201410770676.9A CN201410770676A CN104595502A CN 104595502 A CN104595502 A CN 104595502A CN 201410770676 A CN201410770676 A CN 201410770676A CN 104595502 A CN104595502 A CN 104595502A
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- sphere
- cover
- valve flap
- 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
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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
- F16K1/14—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 with ball-shaped valve member
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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
- F16K1/36—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a stop valve with high sealing performance. A valve deck sealing cover is arranged on a valve body, a valve rod is movably installed on a valve deck, the lower end of the valve rod is located in the valve body, and a valve base is arranged in the valve body. The stop valve further comprises a valve flap sleeve and a valve flap cover, a whole valve flap is of a sphere shape, the whole valve flap sleeve is of a cylinder shape, the caliber of the upper end of the valve flap sleeve is 2 millimeters-5 millimeters larger than the diameter of the sphere-shaped valve flap, the caliber of the lower end of the valve flap sleeve is 2 millimeters-5 millimeters smaller than the diameter of the sphere-shaped valve flap, the sphere-shaped valve flap is placed in the valve flap sleeve, and the sphere-shaped valve flap makes contact with the valve base in the valve body in a sealing mode through an opening in the lower end of the valve flap sleeve. The stop valve has the advantages that structural design is very reasonable, service life is effectively prolonged, and potential safety hazards caused by leakage are effectively eradicated.
Description
Technical field
The present invention relates to the technical field of valve, more particularly relate to the technical field of stop valve.
Background technique
Valve is the device being used for controlling the direction of fluid, pressure and flow in fluid system, and it can make the media flow in pipe arrangement and equipment or stops and controlling the device of its flow.Valve mainly includes gate valve, stop valve, safety check, membrane valve, ball valve, stopcock, dish valve, plunger valve and ball valve etc., the sealability of valve refers to that each sealed department steric hindrance of valve stops the ability of dielectric leakage, and it is the most important technical performance index of valve.There are three places at the sealing position of valve: one is the contacting point between open-shut device and valve seat two sealing surface; Two is cooperation places of filler and valve rod and stuffing box; Three is joints of valve body and valve gap.Wherein the leakage at the first place is called interior leakage, namely usually saidly fits badly, and it blocks the ability of medium by affecting valve.For block valve class, interior leakage is unallowed.The leakage at rear two places is called and leaks outside, and namely medium is from valve internal leakage to valve.Leak outside and can cause loss of material, befouling environment, also can cause the accident time serious.For inflammable and explosive, poisonous or have the medium of radiation, leak outside unallowable especially, thus valve must have reliable sealability.Stop valve is the type in valve, and it is also known as pipe valve valve, belongs to forced seal formula valve, so when valve closing, must apply pressure, do not leak with forced seal face to flap.When medium is by when entering valve below flap, the resistance overcome required for steering force, be the frictional force of valve rod and filler and the thrust produced by the pressure of medium, the power of the force rate valve opening door of closing valve is large, so the diameter of valve rod wants large, otherwise the fault of valve rod bending can be there is.The closed principle of stop valve relies on valve rod pressure, and valve clack sealing surface and sealing surface of seat are fitted tightly, and stops medium circulation.The flap of the open-shut device of stop valve normally stopper, its sealing surface is plane or the conical surface, and flap is along the center line moving linearly of valve seat.In long-term repeatedly opening and closing process in use, its sealing surface there will be natural wear phenomenon on the one hand, causes poorly sealed generation to be leaked; On the other hand also can to sealing surface cause damage in various degree containing assorted impurity when opening and closing in medium, poorly sealed generation is caused to be leaked, because sealing surface immobilizes, once there is damage in sealing face, not only substantially reduce the working life of this product, and also can produce potential safety hazard time serious.
Summary of the invention
Object of the present invention is exactly provide a kind of structural design very reasonable to solve above-mentioned deficiency, and sealing surface from Row sum-equal matrix, not only can effectively can increase the service life, but also effectively can stop the stop valve with high sealing performance of potential safety hazard.
The technical solution that the present invention adopts to solve the problems of the technologies described above is as follows:
There is the stop valve of high sealing performance, it mainly includes valve body, valve gap, valve rod and flap, described valve bonnet seal lid is put on valve body, valve handle activity is arranged on valve gap, the lower end of this valve rod is positioned at valve body, valve seat is provided with in described valve body, it also includes flap cover and valve clack cover, described flap entirety is in sphere-like, flap cover entirety cylindrically, and the upper end bore of this flap cover is greater than sphere-like flap diameter 2 to 5 millimeters, lower end bore is less than sphere-like flap diameter 2 to 5 millimeters, the flap of described sphere-like is placed in flap cover, the lower ending opening that the flap of this sphere-like is overlapped by flap seals mutually with the valve seat in valve body and contacts, described valve clack cover lid puts the upper end at flap cover, this valve clack cover offers through hole, the lower end of described valve rod is provided with baffle plate, valve rod is plugged in valve clack cover by this through hole, and the baffle plate of valve rod lower end contacts with the flap of sphere-like.
Described valve seat is provided with the conical surface, this conical surface is fixedly equipped with cemented carbide, described sphere-like flap seals mutually with the conical surface of this valve seat and contacts.
Spacing 2 to 5 centimetres inside the baffle plate of described valve rod lower end and valve clack cover.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is: structural design is very reasonable, the flap of sphere-like and valve seat not use only face and seal, and the flap of sphere-like freely can rotate in flap cover, do not stop the sealing surface freely exchanging flap and valve seat, theoretically, there is countless corresponding sealing surface in flap and valve seat, efficiently solve wearing and tearing and the damage of sealing surface nature and non-natural, not only effectively extend working life, but also effectively stop the potential safety hazard that produces due to leakage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, there is the stop valve of high sealing performance, it mainly includes valve body 1, valve gap 2, valve rod 3, flap 4, flap cover 5 and valve clack cover 6, described valve gap 2 sealing cover is put on valve body 1, valve rod 3 is movably arranged on valve gap 2, the lower end of this valve rod 3 is positioned at valve body 1, valve seat 7 is provided with in described valve body 1, this valve seat 7 is provided with the conical surface, this conical surface is fixedly equipped with cemented carbide 8, described flap 4 entirety is in sphere-like, flap overlaps 5 entirety cylindrically, the flap 4 of described sphere-like is placed in flap cover 5, the upper end bore of this flap cover 5 is greater than sphere-like flap 4 diameter 2 to 5 millimeters, lower end bore is less than sphere-like flap 4 diameter 2 to 5 millimeters, like this, the flap 4 being not only convenient to sphere-like enters from the upper end of flap cover 5, and the flap 4 of sphere-like limit can be placed in flap cover 5 again, the flap 4 of this sphere-like seals sphere-contact by the flap cover lower ending opening of 5 mutually with valve seat 7 conical surface cemented carbide 8 place in valve body 1, described valve clack cover 6 lid is put in the upper end of flap cover 5, this valve clack cover 6 offers through hole, the lower end of described valve rod 3 is provided with baffle plate 9, valve rod 3 is plugged in valve clack cover 6 by this through hole, and the baffle plate 9 of valve rod 3 lower end contacts with the flap 4 of sphere-like, freedom in 5 can be overlapped and flexible rotating at flap in order to sphere-like flap 4 can be allowed, inside the baffle plate 9 of this valve rod 3 lower end and valve clack cover 6, spacing 2 to 5 centimetres is advisable, when valve rod 3 upwards promotes slightly, flap 4 just can overlap 5 freely and flexible rotating at flap.
Claims (3)
1. there is the stop valve of high sealing performance, it mainly includes valve body, valve gap, valve rod and flap, described valve bonnet seal lid is put on valve body, valve handle activity is arranged on valve gap, the lower end of this valve rod is positioned at valve body, valve seat is provided with in described valve body, it is characterized in that: it also includes flap cover and valve clack cover, described flap entirety is in sphere-like, flap cover entirety cylindrically, and the upper end bore of this flap cover is greater than sphere-like flap diameter 2 to 5 millimeters, lower end bore is less than sphere-like flap diameter 2 to 5 millimeters, the flap of described sphere-like is placed in flap cover, the lower ending opening that the flap of this sphere-like is overlapped by flap seals mutually with the valve seat in valve body and contacts, described valve clack cover lid puts the upper end at flap cover, this valve clack cover offers through hole, the lower end of described valve rod is provided with baffle plate, valve rod is plugged in valve clack cover by this through hole, and the baffle plate of valve rod lower end contacts with the flap of sphere-like.
2. the stop valve with high sealing performance according to claim 1, is characterized in that: described valve seat is provided with the conical surface, this conical surface is fixedly equipped with cemented carbide, and described sphere-like flap seals mutually with the conical surface of this valve seat and contacts.
3. the stop valve with high sealing performance according to claim 1 and 2, is characterized in that: spacing 2 to 5 centimetres inside the baffle plate of described valve rod lower end and valve clack cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770676.9A CN104595502A (en) | 2014-12-15 | 2014-12-15 | Stop valve with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770676.9A CN104595502A (en) | 2014-12-15 | 2014-12-15 | Stop valve with high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104595502A true CN104595502A (en) | 2015-05-06 |
Family
ID=53121461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410770676.9A Pending CN104595502A (en) | 2014-12-15 | 2014-12-15 | Stop valve with high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067661A1 (en) * | 2022-09-29 | 2024-04-04 | 沈阳耐蚀合金泵股份有限公司 | Longitudinally-rotating valve clack shielding valve capable of being updated online without disassembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601474A (en) * | 1983-06-15 | 1985-01-07 | Ooya Consultant Kk | Chemical-resisting valve using ball for valve body |
| CN2279479Y (en) * | 1996-10-13 | 1998-04-22 | 邱卫新 | Small-calibre high temperature and high pressure stop valve |
| CN200986030Y (en) * | 2006-12-04 | 2007-12-05 | 江苏苏盐阀门机械有限公司 | Floating ball type lines sealing globe valve |
| CN201416653Y (en) * | 2009-07-09 | 2010-03-03 | 成都凯天电子股份有限公司 | Bellows ball core stop valve |
| CN102155543A (en) * | 2011-04-02 | 2011-08-17 | 浙江国阀科技有限公司 | Self-location stop valve |
| CN204387346U (en) * | 2014-12-15 | 2015-06-10 | 湖北力拓阀业有限公司 | There is the stop valve of high sealing performance |
-
2014
- 2014-12-15 CN CN201410770676.9A patent/CN104595502A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601474A (en) * | 1983-06-15 | 1985-01-07 | Ooya Consultant Kk | Chemical-resisting valve using ball for valve body |
| CN2279479Y (en) * | 1996-10-13 | 1998-04-22 | 邱卫新 | Small-calibre high temperature and high pressure stop valve |
| CN200986030Y (en) * | 2006-12-04 | 2007-12-05 | 江苏苏盐阀门机械有限公司 | Floating ball type lines sealing globe valve |
| CN201416653Y (en) * | 2009-07-09 | 2010-03-03 | 成都凯天电子股份有限公司 | Bellows ball core stop valve |
| CN102155543A (en) * | 2011-04-02 | 2011-08-17 | 浙江国阀科技有限公司 | Self-location stop valve |
| CN204387346U (en) * | 2014-12-15 | 2015-06-10 | 湖北力拓阀业有限公司 | There is the stop valve of high sealing performance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067661A1 (en) * | 2022-09-29 | 2024-04-04 | 沈阳耐蚀合金泵股份有限公司 | Longitudinally-rotating valve clack shielding valve capable of being updated online without disassembly |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150506 |