CN105090525A - Special straight-flow type stop valve for chlor-alkali - Google Patents
Special straight-flow type stop valve for chlor-alkali Download PDFInfo
- Publication number
- CN105090525A CN105090525A CN201410215526.1A CN201410215526A CN105090525A CN 105090525 A CN105090525 A CN 105090525A CN 201410215526 A CN201410215526 A CN 201410215526A CN 105090525 A CN105090525 A CN 105090525A
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- CN
- China
- Prior art keywords
- valve
- chlor
- flap
- valve body
- rod
- 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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
Abstract
The invention discloses a special straight-flow type stop valve for chlor-alkali. According to the technical scheme, the special straight-flow type stop valve for chlor-alkali comprises a valve body, a valve cover, a transmission rod, a locking nut arranged on the transmission rod and a hand wheel fixed to the top end of the transmission rod. The other end of the transmission rod is connected with a valve rod. The valve rod perpendicularly penetrates through the valve cover to be connected with a valve clack. The valve clack is located inside the valve body. The valve body comprises a medium inlet pipe and a medium outlet pipe, and the medium inlet pipe and the medium outlet pipe are located on the same axis. The included angle between the axis of the valve rod and the axis of the medium outlet pipe is 45 degrees. The interval between the valve rod and the valve cover is filled with sealing filler, and a filler gland is arranged on the sealing filler. The inner surfaces of the valve body and the valve cover are both provided with anti-corrosion layers. The outer surfaces of the valve clack and the valve rod are also provided with anti-corrosion layers. A sealing ring is arranged in the position, matched with the valve clack, inside a cavity of the valve body. The special straight-flow type stop valve for chlor-alkali has the advantages that the structure is simple; manufacturing and maintenance are convenient; a sealing surface is not prone to abrasion and scratches, the sealing performance is good, and the service life is long.
Description
Technical field
The present invention relates to modulating valve, stop valve technical field, particularly relate to a kind of chlor-alkali special straight streaming stop valve.
Background technique
The open-shut device of stop valve is the flap of stopper, and sealing surface is plane or the conical surface, and flap is along the center line moving linearly of valve seat.The forms of motion of valve rod, also has lifting rotation rod-type, and stop valve refers to the valve of closure member 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.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.Therefore, such stop valve valve that dams is suitable as and cuts off or regulate and throttling use very much.Conventional stop valve is applied in containing solid particle or the large mordant flowing medium aspect of viscosity, and be easily corroded, working life is short.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the invention provides a kind of compact structure, sealability is stablized, corrosion resistance is strong, opening and closing flexibly, chlor-alkali special straight streaming stop valve that stroke is short.
To achieve these goals, new solution of the present invention is achieved in that a kind of chlor-alkali special straight streaming stop valve, comprise valve body 1, valve gap 6, drive link 9, be located at the locking nut 10 on described drive link 9, and be fixed on the handwheel 11 on described drive link 9 top, described drive link 9 the other end connects valve rod 5, described valve rod 5 passes perpendicularly through described valve gap 6 and is connected with flap 4, it is inner that described flap 4 is positioned at described valve body 1, described valve body 1 comprises medium inlet pipe 2, media outlet pipe 3, described medium inlet pipe 1, media outlet pipe 3 is positioned on same shaft axis, the shaft axis of described valve rod 5 and the shaft axis angle of described media outlet pipe are 45 °, gap between described valve rod 5 and described valve gap 6 is provided with stuffing box packing 7, Gland 8 is provided with above described stuffing box packing 7, described valve body 1, valve gap 6 internal surface is equipped with anticorrosive coat 11, described flap 4, valve rod 5 outer surface is also provided with described anticorrosive coat 11, agree with place with described flap 4 in described valve body 1 chamber and be provided with seal ring 12.
Further, described valve body 1, valve gap 6 material adopt cast steel, spheroidal graphite cast iron liner PFA, F46, F2 or PO, PP, PE; Described flap 4 material adopts carbon steel heat to cover PFA, F46, F2 or PO, PP, PE.
Further, described valve rod 5 material selection stainless steel.
Further, described flap 4 is provided with through hole, and anti-corrosion material enters through hole, connects in aggregates by two-layer for described flap about 4 described anticorrosive coat 11.
Further, teflon is selected in described stuffing box packing 7; Described Gland 8 material selection spheroidal graphite cast iron.
Further, described locking nut 10 material selection Casting aluminium bronze; Described handwheel 11 material selection spheroidal graphite cast iron.
The present invention has following beneficial effect: structure of the present invention is comparatively simple, manufactures and keeps in repair all more convenient; Sealing surface is not easy to wear, scratch, sealability are better, and the life-span is longer; The present invention relies on valve rod pressure, and valve clack sealing surface and sealing surface of seat are combined closely, and stops medium circulation.In opening-closing process, between sealing surface, frictional force is little, wear-resisting, and Lift is little, and manufacturing process performance is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
With reference to accompanying drawing 1 description of symbols: valve body 1, medium inlet pipe 2, media outlet pipe 3, flap 4, valve rod 5, valve gap 6, stuffing box packing 7, Gland 8, drive link 9, locking nut 10, handwheel 11, seal ring 12, anticorrosive coat 13.
Embodiment
A kind of chlor-alkali special straight of the present invention streaming stop valve, comprises valve body 1, valve gap 6, drive link 9, is located at the locking nut 10 on described drive link 9 and is fixed on the handwheel 11 on described drive link 9 top, described locking nut 10 material selection Casting aluminium bronze; Described handwheel 11 material selection spheroidal graphite cast iron, described drive link 9 the other end connects valve rod 5, described valve rod 5 passes perpendicularly through described valve gap 6 and is connected with flap 4, and described flap 4 designs for integral type with valve rod 5, can prevent because loine pressure fluctuation causes internals to go out the possibility of described valve body 1; Described drive link 9 is set to split type with flap 4, and during opening/shutting valve, described drive link 9 drives described flap 4 to be converted to straight line motion by rotary motion, guarantees without adhesive wear between sealing surface, forms tight seal.
It is inner that described flap 4 is positioned at described valve body 1, described valve body 1 comprises medium inlet pipe 2, media outlet pipe 3, described medium inlet pipe 1, media outlet pipe 3 is positioned on same shaft axis, the shaft axis of described valve rod 5 and the shaft axis angle of described media outlet pipe are 45 °, gap between described valve rod 5 and described valve gap 6 is provided with stuffing box packing 7, Gland 8 is provided with above described stuffing box packing 7, described valve body 1, valve gap 6 internal surface is equipped with anticorrosive coat 11, described flap 4, valve rod 5 outer surface is also provided with described anticorrosive coat 11, agree with place with described flap 4 in described valve body 1 chamber and be provided with seal ring 12.Described valve body 1, valve gap 6 material adopt cast steel, spheroidal graphite cast iron liner PFA, F46, F2 or PO, PP, PE; Described flap 4 material adopts carbon steel heat to cover PFA, F46, F2 or PO, PP, PE, and described flap 4 is provided with through hole, and liquid preservative material infiltrates through hole, connects in aggregates by the two-layer anticorrosive coat of described flap 4 upper and lower surface; Described valve rod 5 material selection stainless steel; Teflon is selected in described stuffing box packing 6; Described Gland 7 material selection spheroidal graphite cast iron.
The present invention is directed to medium feature, fluorine plastic corrosion-proof layer is covered in the sealing surface soaking of body cavity, valve bonnet seal face, stem surface, flap surface, medium gateway place flange, and form and serve as a contrast fluorine inner chamber completely, corrosion resistance and good, sealability are stable; Stuffing box packing, seal ring adopt multistage teflon, eliminate that common valve packing box seal is weak, medium easily leaks outside, the possibility even caused the accident; The design of direct current type formula, makes the runner of valve body become an oblique line with sprue, and the destructiveness of such flowing state is less than conventional stop valve, thus also little accordingly by the pressure loss of valve, increases the service life.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, other amendments that those of ordinary skill in the art make technological scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (6)
1. a chlor-alkali special straight streaming stop valve, comprise valve body (1), valve gap (6), drive link (9), be located at the locking nut (10) on described drive link (9), and be fixed on the handwheel (11) on described drive link (9) top, described drive link (9) the other end connects valve rod (5), described valve rod (5) passes perpendicularly through described valve gap (6) and is connected with flap (4), it is inner that described flap (4) is positioned at described valve body (1), described valve body (1) comprises medium inlet pipe (2), media outlet pipe (3), described medium inlet pipe (1), media outlet pipe (3) is positioned on same shaft axis, it is characterized in that, the shaft axis of described valve rod (5) and the shaft axis angle of described media outlet pipe are 45 °, gap between described valve rod (5) and described valve gap (6) is provided with stuffing box packing (7), described stuffing box packing (7) top is provided with Gland (8), described valve body (1), valve gap (6) internal surface is equipped with anticorrosive coat (11), described flap (4), valve rod (5) outer surface is also provided with described anticorrosive coat (11), agree with place with described flap (4) in described valve body (1) chamber and be provided with seal ring (12).
2. a kind of chlor-alkali special straight streaming stop valve according to claim 1, is characterized in that, described valve body (1), valve gap (6) material adopt cast steel, spheroidal graphite cast iron liner PFA, F46, F2 or PO, PP, PE; Described flap (4) material adopts carbon steel heat to cover PFA, F46, F2 or PO, PP, PE.
3. a kind of chlor-alkali special straight streaming stop valve according to claim 1, is characterized in that, described valve rod (5) material selection stainless steel.
4. a kind of chlor-alkali special straight streaming stop valve according to claim 1, it is characterized in that, described flap (4) is provided with through hole, and anti-corrosion material enters through hole, connects in aggregates by upper and lower for described flap (4) two-layer described anticorrosive coat (11).
5. a kind of chlor-alkali special straight streaming stop valve according to claim 1, it is characterized in that, teflon is selected in described stuffing box packing (7); Described Gland (8) material selection spheroidal graphite cast iron.
6. a kind of chlor-alkali special straight streaming stop valve according to claim 1, is characterized in that, described locking nut (10) material selection Casting aluminium bronze; Described handwheel (11) material selection spheroidal graphite cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215526.1A CN105090525A (en) | 2014-05-21 | 2014-05-21 | Special straight-flow type stop valve for chlor-alkali |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215526.1A CN105090525A (en) | 2014-05-21 | 2014-05-21 | Special straight-flow type stop valve for chlor-alkali |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090525A true CN105090525A (en) | 2015-11-25 |
Family
ID=54571568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410215526.1A Pending CN105090525A (en) | 2014-05-21 | 2014-05-21 | Special straight-flow type stop valve for chlor-alkali |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090525A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587913A (en) * | 2016-03-29 | 2016-05-18 | 无锡市圣科不锈钢气动自控阀门厂 | Novel quick draining valve structure |
| CN105782464A (en) * | 2016-05-30 | 2016-07-20 | 江苏金晟元特种阀门股份有限公司 | Direct current type full-lining stop valve for chloro-alkali |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4421298A (en) * | 1981-03-04 | 1983-12-20 | Edmund Kujawski | Y Pattern valve |
| CN200999889Y (en) * | 2007-01-31 | 2008-01-02 | 江苏明江阀业有限公司 | Fluoroplastic full-lining non-return valve special for chlor-alkali |
| CN202418807U (en) * | 2011-11-23 | 2012-09-05 | 温州纳川阀门有限公司 | Split type stop valve |
| CN202441928U (en) * | 2012-02-29 | 2012-09-19 | 温州凯林阀门有限公司 | Y-shaped multifunctional valve |
-
2014
- 2014-05-21 CN CN201410215526.1A patent/CN105090525A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4421298A (en) * | 1981-03-04 | 1983-12-20 | Edmund Kujawski | Y Pattern valve |
| CN200999889Y (en) * | 2007-01-31 | 2008-01-02 | 江苏明江阀业有限公司 | Fluoroplastic full-lining non-return valve special for chlor-alkali |
| CN202418807U (en) * | 2011-11-23 | 2012-09-05 | 温州纳川阀门有限公司 | Split type stop valve |
| CN202441928U (en) * | 2012-02-29 | 2012-09-19 | 温州凯林阀门有限公司 | Y-shaped multifunctional valve |
Non-Patent Citations (1)
| Title |
|---|
| 孙晓霞: "《实用阀门技术问答》", 31 May 2008 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587913A (en) * | 2016-03-29 | 2016-05-18 | 无锡市圣科不锈钢气动自控阀门厂 | Novel quick draining valve structure |
| CN105782464A (en) * | 2016-05-30 | 2016-07-20 | 江苏金晟元特种阀门股份有限公司 | Direct current type full-lining stop valve for chloro-alkali |
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| 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: 20151125 |
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| RJ01 | Rejection of invention patent application after publication |