CN105443774A - Efficient dustproof sealing stop valve - Google Patents
Efficient dustproof sealing stop valve Download PDFInfo
- Publication number
- CN105443774A CN105443774A CN201510916414.3A CN201510916414A CN105443774A CN 105443774 A CN105443774 A CN 105443774A CN 201510916414 A CN201510916414 A CN 201510916414A CN 105443774 A CN105443774 A CN 105443774A
- Authority
- CN
- China
- Prior art keywords
- valve
- seal ring
- sealing
- valve body
- axle sleeve
- 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
- F16K1/02—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 screw-spindle
- F16K1/04—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 screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
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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
- F16K1/38—Valve members of conical shape
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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
- F16K1/46—Attachment of sealing rings
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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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- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses an efficient dustproof sealing stop valve comprising a valve body, a valve cap, a shaft sleeve, a valve rod nut, a valve rod, a valve element and a hand wheel, wherein a tapered flowing hole is formed in a valve cavity of the valve body; the upper end of the valve body is connected with the valve cap; the valve cap is fixedly connected with the valve body through a plurality of bolt fasteners; the shaft sleeve is arranged in the valve cap and is connected with the valve rod nut; the valve rod passes through the valve rod nut and the shaft sleeve and is in threaded connection with the valve rod nut; the tail end of the valve rod is fixedly connected with the valve element; the upper end of the valve rod is connected with the hand wheel; the valve element is of a tapered round head structure and is provided with a plurality of tapered sealing rings; a sealing assembly is arranged at the junction of the valve cap and the valve body; the tail end of the shaft sleeve is provided with a dustproof sealing device; and a dustproof assembly is arranged on the connecting surface of the valve rod nut and the shaft sleeve. The efficient dustproof sealing stop valve is reasonable in structure, the sealing effect and service performance of the stop valve are improved, and the service life of the stop valve is greatly prolonged.
Description
[technical field]
The present invention relates to the technical field of stop valve, particularly the stop valve that seals of a kind of efficient dustproof.
[background technique]
The open-shut device of stop valve is the flap of stopper, and in plane or the extra large conical surface above sealing, flap is along the center line moving linearly of valve seat.The forms of motion of valve rod, also has lifting rotation rod-type to can be used for controlling the flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Therefore, such stop valve valve that dams is suitable as and cuts off or regulate and throttling use very much.Valve rod due to such valve 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.
Sealing weighs the principal element of stop valve performance, the sealability of stop valve is also the leading indicator affecting its of length service time, once sealing reduces, the throttling action of stop valve reduces greatly, cause the circulation of medium, current stop valve often sealability is poor, there will be the problems such as leakage after long-time use, working life is shorter, is therefore necessary the stop valve proposing the sealing of a kind of efficient dustproof.
[summary of the invention]
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide the stop valve that a kind of efficient dustproof seals, it is lower that it to be intended to solve in prior art sealing in stop valve using process, high temperature high voltage resistant performance price differential, the technical problem that working life is shorter.
For achieving the above object, the present invention proposes the stop valve of a kind of efficient dustproof sealing, comprise valve body, valve gap, axle sleeve, Stem Mut, valve rod, spool and handwheel, conical flow port is offered in the valve pocket of described valve body, the upper end of described valve body connects valve gap, described valve gap is connected by some bolt fasteners and valve body, the upper end periphery of described valve gap is provided with some hangers, in described valve gap, an axle sleeve is installed, described axle sleeve connects a Stem Mut, the laminating position of described axle sleeve and Stem Mut all offers some through holes, in described through hole, clamping bolt is installed, and be connected with hanger, described valve rod is through Stem Mut and axle sleeve, and be threaded with Stem Mut, the end of described valve rod is fixedly connected with spool, the upper end of described valve rod connects a handwheel, described spool is tapered round end structure, described spool is provided with some tapered seal rings, described valve gap and the joint of valve body are provided with black box, described black box cascade is distributed in the joint of valve gap and valve body, the end of described axle sleeve is provided with dust-proof sealing device, described dust-proof sealing device is by some V-shaped seal rings, first cushion block, spring, second cushion block, anti-return nut connects to form successively, the upper end, joint of described axle sleeve and valve gap is provided with dustproof seal ring, lower end, joint is provided with dust-proof O type circle, the lower end of described Stem Mut is provided with some stuffing boxes, filler is filled with in described stuffing box, described Stem Mut and the junction surface of axle sleeve are provided with dust preventing component.
As preferably, described valve body is integral type structure.
As preferably, the quantity of described bolt fastener is 6 ~ 12, and uniform ring is around on the junction surface of valve gap and valve body.
As preferably, the quantity of described hanger, through hole, clamping bolt is all identical, is 6 ~ 12.
As preferably, the quantity of described tapered seal ring is 3 ~ 6, and the lower end size of described tapered seal ring is less than its upper end size.
As preferably, described black box is made up of high temperature resistant O RunddichtringO, composite sealing ring, refractory seal ring and dust ring, described composite sealing ring is combined by U-shaped seal ring and high temperature high voltage resistant O type circle, described high temperature high voltage resistant O type circle is embedded in U-shaped seal ring, described U-shaped seal ring Open Side Down install.
As preferably, the V-shaped seal ring quantity of described dust-proof sealing device is 3 ~ 5, and Open Side Down, and described V-shaped seal ring is obtained by compression molding.
As preferably, the quantity of described stuffing box is 3 ~ 5.
As preferably, described dust preventing component forms by 3 ~ 6 V-shaped seal rings are stacking, and the opening of the V-shaped seal ring of described dust preventing component outwardly.
Beneficial effect of the present invention: compared with prior art, the stop valve of a kind of efficient dustproof sealing provided by the invention, rational in infrastructure, stopper flap is improved, adopt tapered round end structure, prevent the strong impact force of medium from damaging spool, and tapered structure energy weakened part impact force, reduce rotation dynamics, at valve body, , valve gap, axle sleeve, the joints such as Stem Mut are provided with dust guard and seal arrangement, substantially increase the sealability of stop valve, and often located multiple-sealed structure, dielectric leakage can be prevented, can prevent again the particulates such as dust from entering in valve pocket, improve the working life of stop valve.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the stop valve of a kind of efficient dustproof sealing of the embodiment of the present invention;
Fig. 2 is the structural representation of the tapered seal ring of the embodiment of the present invention;
Fig. 3 is the structural representation of the black box of the embodiment of the present invention;
Fig. 4 is the structural representation of the composite sealing ring of the embodiment of the present invention;
Fig. 5 is the structural representation of the dust-proof sealing device of the embodiment of the present invention;
Fig. 6 is the structural representation of the dust preventing component of the embodiment of the present invention.
In figure: 1-valve body, 11-communication port, 2-valve gap, 20-bolt fastener, 21-hanger, 22-dustproof seal ring, 3-axle sleeve, 30-clamping bolt, 31-dust preventing component, 34-through hole, 35-dust-proof O type circle, 4-Stem Mut, 5-valve rod, 6-spool, the tapered seal ring of 60-, 7-handwheel, 8-black box, 80-is high temperature resistant O RunddichtringO, 81-composite sealing ring, 810-U RunddichtringO, 811-high temperature high voltage resistant O type circle, 82-refractory seal ring, 83-dust ring, 9-dust-proof sealing device, 90-V RunddichtringO, 91-first cushion block, 92-spring, 93-second cushion block, 94-anti-return nut, 10-stuffing box.
[embodiment]
For making the object, technical solutions and advantages of the present invention clearly understand, below by accompanying drawing and embodiment, the present invention is further elaborated.But should be appreciated that, specific embodiment described herein, only in order to explain the present invention, is not limited to scope of the present invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
Consult Fig. 1 to Fig. 6, the stop valve that the embodiment of the present invention provides a kind of efficient dustproof to seal, comprise valve body 1, valve gap 2, axle sleeve 3, Stem Mut 4, valve rod 5, spool 6 and handwheel 7, conical flow port 11 is offered in the valve pocket of described valve body 1, the upper end of described valve body 1 connects valve gap 2, described valve gap 2 is connected with valve body 1 by some bolt fasteners 20, the upper end periphery of described valve gap 2 is provided with some hangers 21, in described valve gap 2, an axle sleeve 3 is installed, described axle sleeve 3 connects a Stem Mut 4, described axle sleeve 3 all offers some through holes 34 with the laminating position of Stem Mut 4, in described through hole, clamping bolt 30 is installed, and be connected with hanger 21, described valve rod 5 is through Stem Mut 4 and axle sleeve 3, and be threaded with Stem Mut 4, the end of described valve rod 5 is fixedly connected with spool 6, the upper end of described valve rod 5 connects a handwheel 7, described spool 6 is tapered round end structure, described spool 6 is provided with some tapered seal rings 60, described valve gap 2 is provided with black box 8 with the joint of valve body 1, described black box 8 cascade is distributed in the joint of valve gap 2 and valve body 1, the end of described axle sleeve 3 is provided with dust-proof sealing device 9, described dust-proof sealing device 9 is by some V-shaped seal rings 90, first cushion block 91, spring 92, second cushion block 93, anti-return nut 94 connects to form successively, described axle sleeve 3 is provided with dustproof seal ring 22 with the upper end, joint of valve gap 2, lower end, joint is provided with dust-proof O type circle 35, the lower end of described Stem Mut 4 is provided with some stuffing boxes 10, filler is filled with in described stuffing box 10, described Stem Mut 4 and the junction surface of axle sleeve 3 are provided with dust preventing component 31.
Wherein, the quantity of stuffing box 10 is 3 ~ 5.
Wherein, valve body 1 is integral type structure, sound construction, reduces the high strong impact force of medium to the shear action of valve body 1, and integral structure, sealability improves greatly.
Further, the quantity of bolt fastener 20 is 6 ~ 12, uniform ring around valve gap 2 with on the junction surface of valve body 1.Realized the compact siro spinning technology of valve gap 2 and valve body 1 by multiple bolt fastener 20, join strength is high.
Wherein, the quantity of hanger 21, through hole 34, clamping bolt 30 is all identical, is 6 ~ 12.
Further, the quantity of tapered seal ring 60 is 3 ~ 6, and the lower end size of described tapered seal ring 60 is less than its upper end size.When spool 6 and conical flow port 11 fitted seal, tapered seal ring 60 both had guiding function, and make spool 6 sedimentation completely, have again efficient sealability, multiple tapered seal ring 60 is multi-sealed, substantially increases sealability.
Further, black box 8 is made up of high temperature resistant O RunddichtringO 80, composite sealing ring 81, refractory seal ring 82 and dust ring 83, described composite sealing ring 81 is combined by U-shaped seal ring 810 and high temperature high voltage resistant O type circle 811, described high temperature high voltage resistant O type circle 811 is embedded in U-shaped seal ring 810, described U-shaped seal ring 810 Open Side Down install.While realizing sealing function by black box 8, there is dustproof effect, and high temperature resistant O RunddichtringO 80 and high temperature high voltage resistant O type circle 811 have the performances such as high temperature resistant, greatly can improve the usability of stop valve, multiple-sealed, improve the working life of stop valve.
Further, V-shaped seal ring 90 quantity of dust-proof sealing device 9 is 3 ~ 5, Open Side Down, described V-shaped seal ring 90 is obtained by compression molding, dust preventing component 31 forms by 3 ~ 6 V-shaped seal rings 90 are stacking, outwardly, multiple V-shaped seal ring 90 combines the opening of the V-shaped seal ring 90 of described dust preventing component 31, improves dust-proof and sealing effect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the stop valve of an efficient dustproof sealing, comprise valve body (1), valve gap (2), axle sleeve (3), Stem Mut (4), valve rod (5), spool (6) and handwheel (7), conical flow port (11) is offered in the valve pocket of described valve body (1), the upper end of described valve body (1) connects valve gap (2), described valve gap (2) is connected by some bolt fasteners (20) and valve body (1), the upper end periphery of described valve gap (2) is provided with some hangers (21), in described valve gap (2), an axle sleeve (3) is installed, upper connection one Stem Mut (4) of described axle sleeve (3), described axle sleeve (3) all offers some through holes (34) with the laminating position of Stem Mut (4), in described through hole, clamping bolt (30) is installed, and be connected with hanger (21), described valve rod (5) is through Stem Mut (4) and axle sleeve (3), and be threaded with Stem Mut (4), the end of described valve rod (5) is fixedly connected with spool (6), the upper end of described valve rod (5) connects a handwheel (7), it is characterized in that: described spool (6) is tapered round end structure, described spool (6) is provided with some tapered seal rings (60), described valve gap (2) is provided with black box (8) with the joint of valve body (1), described black box (8) cascade is distributed in the joint of valve gap (2) and valve body (1), the end of described axle sleeve (3) is provided with dust-proof sealing device (9), described dust-proof sealing device (9) is by some V-shaped seal rings (90), first cushion block (91), spring (92), second cushion block (93), anti-return nut (94) connects to form successively, described axle sleeve (3) is provided with dustproof seal ring (22) with the upper end, joint of valve gap (2), lower end, joint is provided with dust-proof O type circle (35), the lower end of described Stem Mut (4) is provided with some stuffing boxes (10), described stuffing box is filled with filler in (10), described Stem Mut (4) and the junction surface of axle sleeve (3) are provided with dust preventing component (31).
2. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, is characterized in that: described valve body (1) is integral type structure.
3. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, is characterized in that: the quantity of described bolt fastener (20) is 6 ~ 12, uniform ring around valve gap (2) with on the junction surface of valve body (1).
4. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, is characterized in that: the quantity of described hanger (21), through hole (34), clamping bolt (30) is all identical, is 6 ~ 12.
5. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, it is characterized in that: the quantity of described tapered seal ring (60) is 3 ~ 6, the lower end size of described tapered seal ring (60) is less than its upper end size.
6. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, it is characterized in that: described black box (8) is made up of high temperature resistant O RunddichtringO (80), composite sealing ring (81), refractory seal ring (82) and dust ring (83), described composite sealing ring (81) is combined by U-shaped seal ring (810) and high temperature high voltage resistant O type circle (811), described high temperature high voltage resistant O type circle is embedded in U-shaped seal ring (810), described U-shaped seal ring (810) Open Side Down install.
7. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, it is characterized in that: V-shaped seal ring (90) quantity of described dust-proof sealing device (9) is 3 ~ 5, Open Side Down, and described V-shaped seal ring (90) is obtained by compression molding.
8. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, is characterized in that: the quantity of described stuffing box (10) is 3 ~ 5.
9. the stop valve of a kind of efficient dustproof sealing as claimed in claim 1, it is characterized in that: described dust preventing component (31) forms by 3 ~ 6 V-shaped seal rings (90) are stacking, and the opening of the V-shaped seal ring (90) of described dust preventing component (31) outwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916414.3A CN105443774A (en) | 2015-12-11 | 2015-12-11 | Efficient dustproof sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916414.3A CN105443774A (en) | 2015-12-11 | 2015-12-11 | Efficient dustproof sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443774A true CN105443774A (en) | 2016-03-30 |
Family
ID=55554293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510916414.3A Pending CN105443774A (en) | 2015-12-11 | 2015-12-11 | Efficient dustproof sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443774A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439058A (en) * | 2016-10-28 | 2017-02-22 | 超达阀门集团丽水有限公司 | Multifunctional stop valve |
| EP3559519A4 (en) * | 2016-12-23 | 2020-08-05 | Rosemount Inc. | Multi-pressure rated valve assembly |
-
2015
- 2015-12-11 CN CN201510916414.3A patent/CN105443774A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439058A (en) * | 2016-10-28 | 2017-02-22 | 超达阀门集团丽水有限公司 | Multifunctional stop valve |
| EP3559519A4 (en) * | 2016-12-23 | 2020-08-05 | Rosemount Inc. | Multi-pressure rated valve assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |