CN103206546A - Isolating type adjusting valve - Google Patents
Isolating type adjusting valve Download PDFInfo
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- CN103206546A CN103206546A CN2013101215190A CN201310121519A CN103206546A CN 103206546 A CN103206546 A CN 103206546A CN 2013101215190 A CN2013101215190 A CN 2013101215190A CN 201310121519 A CN201310121519 A CN 201310121519A CN 103206546 A CN103206546 A CN 103206546A
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Abstract
The invention relates to an isolating type adjusting valve mainly comprising a valve body, a valve rod, a shroud and a valve seat. The valve body is arranged in the valve base and the shroud is arranged in the valve body at the upper end of the valve base. The isolating type regulating valve is characterized in that the shroud is an opposite-flowing type shroud, an adjusting valve plug and a sealing valve plug are arranged on the lower portion of the valve rod from top to bottom, the adjusting valve plug is slidingly matched with the inner wall of the shroud to realize opening adjustment, and the sealing valve plug is matched with the sealing surface of the valve base hermetically. An isolating buffering ring is arranged on the valve rod arranged between the adjusting valve plug and the sealing valve plug, and is provided with a buffering flowing channel capable of communicating cavities arranged above and below the isolating buffering ring. When flowing fluids enter from the opposite-flowing type shroud, fluids flow oppositely in an annular opposite-flowing groove to reduce kinetic energy, and are buffered through the buffering flowing channel of the isolating buffering ring to further reduce kinetic energy of the fluids, so that washout to the sealing surfaces of the valve plugs and the valve seat are greatly reduced, service life of the valve body is prolonged and operating stability of the equipment is increased.
Description
Technical field
The present invention relates to a kind of modulating valve, particularly a kind ofly can prolong the modulating valve formula that the liquidates modulating valve in working life.
Background technique
In the automatic control of modernized factory, modulating valve plays a part very important, and the production of these factories is depended on that mobile medium is correct and distributed and control.In many systems, the operating conditions that modulating valve stands such as temperature, pressure, corrosion and pollution are all even more serious than other parts, yet, when its control process fluid mobile the time, it must move and minimum amount of maintenance satisfactorily.
Small flow, high-differential-pressure regulating valve in the power station or oil field use morely, it is owing to work under the High Pressure Difference environment, valve body sealing surface is washed away repeatedly, cavitate, lack working life, has a strong impact on the normal operation of equipment.
A kind of formula modulating valve that liquidates had appearred afterwards, a kind of circulation formula modulating valve that liquidates is disclosed as notice of authorization CN 2612842Y, comprise disc, it is characterized in that: described disc is provided with some concentric circular grooves, link up by several radial grooves between the adjacent circular groove, the circular groove of outer shroud and interior ring communicates with water intake, water outlet by radial groove separately.This kind structure is utilized fluid ring in being flowed into via radial groove by outer shroud, a part of fluid flows dorsad in flow process, another part fluid unites two into one, converge in opposite directions, swiftly flowing molecule produces bump, friction and whirlpool, and a large amount of consumed energies reduces pressure, play the effect of anti-cavitation erosion, prolonged working life.
But there is certain defective in the above-mentioned formula modulating valve that liquidates: adopt the multi-buffer throttling, volume is bigger, has increased manufacture cost; And finally still can wash away spool, sealing surface of seat, under High Pressure Difference, low flow rate condition, its sealing top blast be decreased maximum, still can be subjected to certain influence working life.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of spool sealing surface of seat washes away less and the isolated modulating valve of long service life.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of isolated modulating valve, mainly comprise valve body, valve rod, shroud and valve seat, the built-in valve seat of valve body, arrange in the valve body of valve seat upper end and shroud, its innovative point is: described stem lower portion is disposed with regulating spool and sealed valve core from top to bottom, and regulating spool is slidingly matched and realizes that aperture regulates with shrouding inwall, and sealed valve core cooperates the realization runner to seal with sealing surface of seat.
Further, the port built-up welding of described regulating spool and sealed valve core has the alloy sealing surface.
Further, also be provided with the buffer compartment abscission zone between described regulating spool and the sealed valve core.
Further, described buffer compartment abscission zone is the formula buffer structure that liquidates.
Further, described buffer compartment abscission zone has together or the above separation layer that sets gradually from top to bottom.
Further, described shrouding for regulating type shrouded.
The invention has the advantages that: avoid in the conventional valves adopting single spool to realize the mistaken ideas of the function that opens and closes and regulate simultaneously, make the adjusting of valve body adopt different valve core sealed covers to cooperate realization with cutting off, bear cavitation erosion, blow damage by regulating spool, avoid fluid directly washing away sealed valve core, even regulating spool is subjected to certain damage of blowing, because its adjusting can adopt the outlet parameter feedback to adjust, and does not influence the precision of regulatory function; In addition, after fluid enters outside shrouding, in the annular in the buffer compartment abscission zone buffering that liquidates in to jet-bedding, reduce kinetic energy, when last fluid is flowed through valve port, because its circulation area is much larger than the logical area of corresponding previous stage throttling, flow velocity is relatively very little, so pressure is only slightly reduced, the kinetic energy of fluid further reduces, and sealed valve core, valve seat are washed away hardly.Prolong the working life of valve, improved the operation stability of equipment.
Description of drawings
Fig. 1 is the isolated modulating valve structural representation of the present invention.
The disc sectional drawing of Fig. 2 for shrouding among the present invention.
Fig. 3 is the side view in buffer compartment abscission zone among the present invention.
Fig. 4 is the separation layer plan view in buffer compartment abscission zone among the present invention.
Embodiment
As shown in Figure 1, comprise valve body 1, valve rod 6, shroud 4 and valve seat 2, valve body 1 built-in valve seat 2 arranges in the valve body 1 of valve seat 2 upper ends and shrouds 4.
The modulating valve inner chamber adopts the multi-buffer buck configuration among the present invention:
The second buffering buck configuration is: between regulating spool 5 and sealed valve core 3, also be provided with the multi-buffer isolated area,
In the present embodiment, buffer compartment abscission zone 7 is the formula buffer structure that liquidates, and the buffer compartment abscission zone has together or the above separation layer that sets gradually from top to bottom.Its principle is shrouded basic identical with the formula of liquidating, concrete structure is shown in Fig. 3,4, buffer compartment abscission zone 7 has twice or the above separation layer that sets gradually 71 from top to bottom, each separation layer 71 is a tooth-shape structure, it cooperates the runner 72 that forms some Vertical direction with the inwall that shrouds 4, the setting of staggering of vertical run 72 between the adjacent separation layer 71, the annular gap between the adjacent separation layer 71 constitutes the runner 73 that liquidates.
Those skilled in the art are to be understood that, the buffering isolation region structure here only is exemplary, not circumscribed, for example adopt the structure that liquidates of the known mazy type buffer structure of present valve field or other improved forms, the effect of yet can reach buffering, isolating.
Claims (6)
1. isolated modulating valve, mainly comprise valve body, valve rod, shroud and valve seat, the built-in valve seat of valve body, arrange in the valve body of valve seat upper end and shroud, it is characterized in that: described stem lower portion is disposed with regulating spool and sealed valve core from top to bottom, regulating spool is slidingly matched and realizes that aperture regulates with shrouding inwall, and sealed valve core cooperates the realization runner to seal with sealing surface of seat.
2. isolated modulating valve according to claim 1, it is characterized in that: the port built-up welding of described regulating spool and sealed valve core has the alloy sealing surface.
3. isolated modulating valve according to claim 1 is characterized in that: also be provided with the buffer compartment abscission zone between described regulating spool and the sealed valve core.
4. isolated modulating valve according to claim 3, it is characterized in that: described buffer compartment abscission zone is the formula buffer structure that liquidates.
5. isolated modulating valve according to claim 3 is characterized in that: described buffer compartment abscission zone has together or the above separation layer that sets gradually from top to bottom.
6. according to any described isolated modulating valve in the claim 1 to 5, it is characterized in that: described shrouding for regulating type shrouded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101215190A CN103206546A (en) | 2013-04-10 | 2013-04-10 | Isolating type adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101215190A CN103206546A (en) | 2013-04-10 | 2013-04-10 | Isolating type adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103206546A true CN103206546A (en) | 2013-07-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101215190A Pending CN103206546A (en) | 2013-04-10 | 2013-04-10 | Isolating type adjusting valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN103206546A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439203A (en) * | 2016-12-07 | 2017-02-22 | 上海核阀门制造有限公司 | Enhanced hedging deceleration regulating valve plate |
| CN107906368A (en) * | 2017-12-08 | 2018-04-13 | 杭州华惠阀门有限公司 | A kind of reducing-and-cooling plant |
| CN112833204A (en) * | 2021-01-08 | 2021-05-25 | 刘秀华 | Valve capable of quantitatively regulating fluid flow |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273626A (en) * | 1997-02-04 | 2000-11-15 | 费希尔控制产品国际公司 | Fluid pressure reduction device |
| CN2581763Y (en) * | 2002-09-26 | 2003-10-22 | 文代龙 | High-pressure double-sleeve multi-stage throttle stop valve |
| CN2612842Y (en) * | 2003-03-26 | 2004-04-21 | 中国核工业集团公司苏州阀门厂 | Circulation opposite flushing type regulating valve |
| CN2752553Y (en) * | 2004-11-10 | 2006-01-18 | 王家祥 | High pressure valve |
| CN200961708Y (en) * | 2006-11-08 | 2007-10-17 | 南通市电站阀门有限公司 | High differential pressure series power station isolation valve |
| CN201198900Y (en) * | 2008-05-16 | 2009-02-25 | 南通市电站阀门有限公司 | Opposed firing ablation type power station stop valve |
| CN201795159U (en) * | 2010-09-15 | 2011-04-13 | 南通市电站阀门有限公司 | Nested regulating valve for soot blower |
| CN201802972U (en) * | 2010-09-15 | 2011-04-20 | 南通市电站阀门有限公司 | Low-pressure-difference discharge adjustable drain valve |
| CN202195069U (en) * | 2011-07-28 | 2012-04-18 | 陈月标 | Multi-stage damping sampling valve |
| CN203272807U (en) * | 2013-04-10 | 2013-11-06 | 南通红星高压阀门有限公司 | Isolated regulating valve |
-
2013
- 2013-04-10 CN CN2013101215190A patent/CN103206546A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273626A (en) * | 1997-02-04 | 2000-11-15 | 费希尔控制产品国际公司 | Fluid pressure reduction device |
| CN2581763Y (en) * | 2002-09-26 | 2003-10-22 | 文代龙 | High-pressure double-sleeve multi-stage throttle stop valve |
| CN2612842Y (en) * | 2003-03-26 | 2004-04-21 | 中国核工业集团公司苏州阀门厂 | Circulation opposite flushing type regulating valve |
| CN2752553Y (en) * | 2004-11-10 | 2006-01-18 | 王家祥 | High pressure valve |
| CN200961708Y (en) * | 2006-11-08 | 2007-10-17 | 南通市电站阀门有限公司 | High differential pressure series power station isolation valve |
| CN201198900Y (en) * | 2008-05-16 | 2009-02-25 | 南通市电站阀门有限公司 | Opposed firing ablation type power station stop valve |
| CN201795159U (en) * | 2010-09-15 | 2011-04-13 | 南通市电站阀门有限公司 | Nested regulating valve for soot blower |
| CN201802972U (en) * | 2010-09-15 | 2011-04-20 | 南通市电站阀门有限公司 | Low-pressure-difference discharge adjustable drain valve |
| CN202195069U (en) * | 2011-07-28 | 2012-04-18 | 陈月标 | Multi-stage damping sampling valve |
| CN203272807U (en) * | 2013-04-10 | 2013-11-06 | 南通红星高压阀门有限公司 | Isolated regulating valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439203A (en) * | 2016-12-07 | 2017-02-22 | 上海核阀门制造有限公司 | Enhanced hedging deceleration regulating valve plate |
| CN107906368A (en) * | 2017-12-08 | 2018-04-13 | 杭州华惠阀门有限公司 | A kind of reducing-and-cooling plant |
| CN112833204A (en) * | 2021-01-08 | 2021-05-25 | 刘秀华 | Valve capable of quantitatively regulating fluid flow |
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Application publication date: 20130717 |