CN102221103A - Regulating valve with double valve seats - Google Patents
Regulating valve with double valve seats Download PDFInfo
- Publication number
- CN102221103A CN102221103A CN2011101328077A CN201110132807A CN102221103A CN 102221103 A CN102221103 A CN 102221103A CN 2011101328077 A CN2011101328077 A CN 2011101328077A CN 201110132807 A CN201110132807 A CN 201110132807A CN 102221103 A CN102221103 A CN 102221103A
- Authority
- CN
- China
- Prior art keywords
- valve
- guide sleeve
- valve body
- spool
- double
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
The invention relates to a regulating valve with double valve seats. The regulating valve comprises a bottom cover, a valve core, a valve body, a sealing packing material, a packing material washer, a packing gland, an upper guide sleeve, a valve rod, a positioning pin, an upper valve seat, a lower valve seat and a connecting piece, wherein the valve body is a large valve cavity structure valve body with an upper valve seat insulating wall and a lower valve seat insulating wall; a double valve core structure of integrated same flow characteristic curve is adopted for the valve core; a double guide structure of two orientations at the upper guide sleeve and a valve body bottom part blank cap is adopted; balance holes are manufactured on the blank cap and the upper guide sleeve; and copper sleeves manufactured by adopting tin bronze is adopted for the embedding of the guide holes on the upper guide sleeve and the blank cap. The invention has the beneficial effects of less loss of pressure drop, large flow, wide adjustable extent, good action stability, and the regulating valve is especially suitable for the use of a pipeline system that the caliber is greater than DN 200, the front and rear pressure difference of the valve is great, the required rated flow is great, the leakage level requirement is low, and mediums have fine impurity working conditions.
Description
Technical field
The present invention relates to a kind of adjusting control valve, particularly relate to a kind of bivalve seat modulating valve.
Background technique
Single-seat adjusting valve, sleeve adjusting valve are in the current various industrial fluids control system, most widely used two kinds of modulating valve.Though single-seat adjusting valve has advantages such as droop loss is little, leakage rate is little, because of employing top guide structure, and bear unbalanced force, be applicable to that not too valve front and back pressure reduction is big or contain the use of minute impurities medium operating mode.Though and sleeve adjusting valve has advantages such as allowing pressure reduction is big, good stability, when valve aperture was big, the sleeve spool valve structure size was corresponding just very big, was easier to produce distortion, be fabricated onto higher quality of fit, and difficulty of processing is just bigger.
Summary of the invention
The problem that the present invention need solve is: the bivalve seat modulating valve that provides a kind of and be applicable to that pressure reduction before and after the valve is big, requires rated flow coefficient is big, leakage class is less demanding, medium contains fine particle impurity operating mode pipe-line system to use.
Technical solution of the present invention is: a kind of bivalve seat modulating valve comprises bottom 1, spool 2, valve body 3, valve gap 4, stuffing box packing 5, filler packing ring 6, Gland 7, goes up guide sleeve 8, valve rod 9, locating stud 10, upper valve base 11, lower valve base 12 and coupling.Described valve body is a kind of big valve pocket structure valve body of two valve seat partitioning walls up and down that has, and makes the rated capacity of its valve pocket want big more than 10% than single seat, sleeve adjusting valve.
Described spool employing is installed on the last guide sleeve on valve body top and the guide structure of the guiding of stifle two places bottom the valve body respectively, has improved spool anti-unbalance power impact capacity and working stability.According to the working condition needs, but described spool, valve seat built-up welding stellite,, scour resistance corrosion-resistant to improve.
Described spool adopts integral type double spool structure, and two spools are processed with identical rating curve, makes that two circulation passages are realized identical Flow-rate adjustment characteristic up and down, and the sealing effect that two circulation passages are closed simultaneously about reaching.Described spool, the closed surface of contact of valve seat adopt taper contact seal.
Described valve rod lower end screws in spool upper end screw, and gets loose with fastening the preventing of locating stud.The valve rod upper end is passed valve gap and can be moved up and down, and is added with stuffing box packing between valve rod and the valve gap, compresses by filler packing ring, Gland, realizes that sealing prevents to leak outside.The valve rod upper end can connect the pneumatic or electric actuator of different model.
Described stifle has the pilot hole for spool lower end guiding, and the described pilot hole of going up on guide sleeve and the stifle is inlayed the copper sheathing that adopts tin bronze processing, plays anti-interlock and improves the wear resistance effect.
On described stifle and last guide sleeve, be processed with equalizing orifice, be used for and introduce in the separate cavities that forms between valve body and valve gap, spool and the stifle, by medium in the valve pocket to reduce the suffered unbalanced force of spool.
The beneficial effect that the present invention brings is: droop loss is little, flow is big, adjustable extent is wide, action stability is good, be specially adapted to bore big greater than pressure reduction before and after the DN200, valve, require the pipe-line system that rated flow is big, leakage class is less demanding, medium contains the fine impurities operating mode to use.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the another kind of soft seal spool of the present invention embodiment's a structural representation.
Embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are described further.
Among the embodiment as Fig. 1, a kind of bivalve seat modulating valve comprises bottom 1, spool 2, valve body 3, valve gap 4, stuffing box packing 5, filler packing ring 6, Gland 7, goes up guide sleeve 8, valve rod 9, locating stud 10, upper valve base 11, lower valve base 12 and coupling.
Described valve body is a kind of big valve pocket structure valve body of two valve seat partitioning walls up and down that has, and two valve seats are individually fixed on the partitioning wall up and down of body cavity, are fixed with gasket seal between valve seat and the valve body.
Described spool employing is installed on the last guide sleeve on valve body top and the guide structure of the guiding of stifle two places bottom the valve body respectively, has improved spool anti-unbalance power impact capacity and working stability.According to the working condition needs, but spool, valve seat built-up welding stellite,, scour resistance corrosion-resistant to improve.
Described spool adopts integral type double spool structure, and two spools are processed with identical rating curve, makes that two circulation passages are realized identical Flow-rate adjustment characteristic up and down, and the sealing effect that two circulation passages are closed simultaneously about reaching.Described spool, the closed surface of contact of valve seat are taper contact seal.
Described valve rod lower end screws in spool upper end screw, and gets loose with fastening the preventing of locating stud.The valve rod upper end is passed valve gap and can be moved up and down, and is added with stuffing box packing between valve rod and the valve gap, compresses by filler packing ring, Gland, realizes that sealing prevents to leak outside.The valve rod upper end can connect the pneumatic or electric actuator of different model.
Described stifle has the pilot hole for spool lower end guiding, and the described pilot hole of going up on guide sleeve and the stifle is inlayed the copper sheathing that adopts tin bronze processing, plays anti-interlock and improves the wear resistance effect.
On described stifle and last guide sleeve, be processed with equalizing orifice, be used for and introduce in the separate cavities that forms between valve body and valve gap, spool and the stifle, by medium in the valve pocket to reduce the suffered unbalanced force of spool.
Described valve gap, stifle are fixed on the valve body with stud, pad and nut, are added with flexible graphite gasket between valve gap, stifle and the valve body, realize that sealing prevents to leak outside.
Be the another kind of embodiment's of the present invention soft seal valve core structure as shown in Figure 2, form by upper connecting rod 21, top board 22, upper sealing panel 23, upper valve core 24, lower connecting rod 25, press table 26, lower seal plate 27 and lower valve core 28.Upper and lower sealing plate material be reinforced TFE, remaining parts is a stainless steel, upper and lower spool is processed with identical rating curve, sealing surface is positioned on the upper and lower sealing plate, spool, the closed surface of contact of valve seat are taper contact soft seal, and its leakage class is better than the hard sealing structure in the foregoing description.
Claims (6)
1. bivalve seat modulating valve, comprise bottom, spool, valve body, valve gap, stuffing box packing, filler packing ring, Gland, go up guide sleeve, valve rod, locating stud, upper valve base, lower valve base and coupling, it is characterized in that described valve body is a kind of big valve pocket structure valve body of two valve seat partitioning walls up and down that has.
2. bivalve seat modulating valve according to claim 1 is characterized in that: described spool adopts the double spool structure of integral type with rating curve.
3. bivalve seat modulating valve according to claim 1 is characterized in that: described spool adopts the dual-guiding structure of going up guide sleeve, stifle two places, valve body bottom guiding.
4. bivalve seat modulating valve according to claim 1 is characterized in that: be processed with equalizing orifice on described stifle and the last guide sleeve.
5. bivalve seat modulating valve according to claim 1 is characterized in that: the described pilot hole of going up on guide sleeve and the stifle is inlayed the copper sheathing that adopts tin bronze processing.
6. bivalve seat modulating valve according to claim 1 is characterized in that: the soft sealing structure that described spool can adopt reinforced TFE and stainless steel material combination to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101328077A CN102221103A (en) | 2011-05-19 | 2011-05-19 | Regulating valve with double valve seats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101328077A CN102221103A (en) | 2011-05-19 | 2011-05-19 | Regulating valve with double valve seats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102221103A true CN102221103A (en) | 2011-10-19 |
Family
ID=44777738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101328077A Pending CN102221103A (en) | 2011-05-19 | 2011-05-19 | Regulating valve with double valve seats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102221103A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821976A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Valve element structure with double guiding structures |
| CN103968100A (en) * | 2014-05-22 | 2014-08-06 | 杭州良工阀门有限公司 | Cascading anti-jamming valve used for supercritical CO2 |
| CN105179708A (en) * | 2015-10-14 | 2015-12-23 | 四川华林自控科技有限公司 | Energy-saving balance high-pressure valve and design method |
| CN106337946A (en) * | 2016-08-26 | 2017-01-18 | 成都欧浦特控制阀门有限公司 | Scouring-resistant flow control valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095978U (en) * | 1991-06-22 | 1992-02-12 | 龚锦 | Automatic pressure head limited valve |
| DE19747919A1 (en) * | 1996-10-31 | 1998-05-07 | Yamatake Honeywell Co Ltd | Valve for fluid flow pipe |
| CN201487371U (en) * | 2009-03-07 | 2010-05-26 | 无锡智能自控工程有限公司 | Anti-oxidation high-pressure sealing stuffing box component |
| CN202152857U (en) * | 2011-05-19 | 2012-02-29 | 浙江科海仪表有限公司 | Double valve seat adjustable valve |
-
2011
- 2011-05-19 CN CN2011101328077A patent/CN102221103A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095978U (en) * | 1991-06-22 | 1992-02-12 | 龚锦 | Automatic pressure head limited valve |
| DE19747919A1 (en) * | 1996-10-31 | 1998-05-07 | Yamatake Honeywell Co Ltd | Valve for fluid flow pipe |
| CN201487371U (en) * | 2009-03-07 | 2010-05-26 | 无锡智能自控工程有限公司 | Anti-oxidation high-pressure sealing stuffing box component |
| CN202152857U (en) * | 2011-05-19 | 2012-02-29 | 浙江科海仪表有限公司 | Double valve seat adjustable valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821976A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Valve element structure with double guiding structures |
| CN103968100A (en) * | 2014-05-22 | 2014-08-06 | 杭州良工阀门有限公司 | Cascading anti-jamming valve used for supercritical CO2 |
| CN105179708A (en) * | 2015-10-14 | 2015-12-23 | 四川华林自控科技有限公司 | Energy-saving balance high-pressure valve and design method |
| CN106337946A (en) * | 2016-08-26 | 2017-01-18 | 成都欧浦特控制阀门有限公司 | Scouring-resistant flow control valve |
| CN106337946B (en) * | 2016-08-26 | 2018-10-12 | 成都欧浦特控制阀门有限公司 | A kind of flow control valve of resistance to erosion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202152857U (en) | Double valve seat adjustable valve | |
| CN102221103A (en) | Regulating valve with double valve seats | |
| CN104747738B (en) | A kind of heavy-caliber high-temperature high pressure sleeve adjusting valve | |
| CN202158200U (en) | Strong corrosion resistant single-seat adjusting valve | |
| CN203477564U (en) | Float ball valve | |
| CN202203421U (en) | Needle stop valve | |
| CN201818810U (en) | Sealing type butterfly valve at bilateral sides of shaft sleeve | |
| CN103277548A (en) | Common rail pipe protection valve | |
| CN101280853A (en) | Steering valve | |
| CN202118294U (en) | High-pressure hard seal ball valve | |
| CN203516772U (en) | Zero-leakage regulating valve | |
| CN202418695U (en) | Flow-adjustable ball valve | |
| CN208041201U (en) | Tiny flow quantity V-type regulation ball valve | |
| CN203516884U (en) | Regulating valve with high erosion resistance | |
| CN202176778U (en) | Self-operated pressure regulating valve in soft sealing structure | |
| CN201420863Y (en) | Valve cage type low noise adjustable valve | |
| CN211117879U (en) | Groove type butterfly valve convenient to use | |
| CN205013746U (en) | Ball valve is moved to high and flat table flotation of ludox | |
| CN212775685U (en) | Hard sealing switch ball valve | |
| CN203082279U (en) | Vacuum check valve | |
| CN210919616U (en) | Mute type guiding overflow valve | |
| CN203309328U (en) | Improved water supply regulating valve | |
| CN209278526U (en) | A kind of hard sealing and leakage rate grade reaches V grades of sleeve adjusting valve | |
| CN207687391U (en) | Metal hard-sealing high temperature high pressure stop cock | |
| CN207349474U (en) | A kind of wedge action valve of stabilized seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111019 |