CN107387864A - A kind of balanced high pressure differential regulating valve with accumulation of energy storage laminated structure - Google Patents
A kind of balanced high pressure differential regulating valve with accumulation of energy storage laminated structure Download PDFInfo
- Publication number
- CN107387864A CN107387864A CN201710756903.6A CN201710756903A CN107387864A CN 107387864 A CN107387864 A CN 107387864A CN 201710756903 A CN201710756903 A CN 201710756903A CN 107387864 A CN107387864 A CN 107387864A
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- Prior art keywords
- accumulation
- energy
- pressure
- regulating valve
- relief assembly
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- 238000009825 accumulation Methods 0.000 title claims abstract description 74
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 39
- 238000004146 energy storage Methods 0.000 title claims description 9
- 230000006837 decompression Effects 0.000 claims abstract description 19
- 210000003456 pulmonary alveoli Anatomy 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000007701 flash-distillation Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
Abstract
A kind of balanced high pressure differential regulating valve with accumulation of energy pressure storing cavity structure, described regulating valve pressure reduction structure is divided into inside and outside two layers, space between ectonexine pressure reduction structure forms the accumulation of energy pressure storing cavity (5), layer is depressurized based on outer layer, internal layer is that layer is depressurized in accumulation of energy, and regulation valve core (3) is active in accumulation of energy cavity region；The unit circulation area of described accumulation of energy decompression layer is equal with main pressure relief assembly final stage pressure reduction stage unit circulation area.The present invention will be easiest to occur cavitation zone moving to valve cage exit site in regulating valve, away from regulation valve core position, only make the accumulation of energy pressure relief assembly of regulating valve be influenceed by cavitation.Accumulation of energy region occurs without pressure drop, cavitation and flash distillation will not occur, pressure relief assembly will not be destroyed, and seal spool position can be avoided to bear the high intensity of cavitation and destroyed, ensure permanently effective sealing, the regulation performance at seal spool position, improve the durable performance of high-differential-pressure regulating valve.
Description
Technical field
The present invention relates to a kind of balanced high pressure differential regulating valve, more particularly, to a kind of balance with accumulation of energy storage laminated structure
Formula high-differential-pressure regulating valve.
Background technology
At present during the high pressure water pump recycling operation of domestic electrical industry, high-differential-pressure regulating valve can be used.With unit
The raising of parameter, feedwater pump discharge pressure accordingly increase, and pressure difference increases before and after high-differential-pressure regulating valve, during heavy-duty service before valve
Pressure difference has more than 30Mpa afterwards, but bears washing away for low discharge feedwater again in underrun.In this way, regulating valve depressurizes
Cavitation phenomenons can occur for outlet final stage position.And the valve element of balanced high pressure differential regulating valve is designed in decompression latter end cavitation area
Domain, cause valve sealing member position that the corrosion function of cavitation occurs.The long-term cavitation accumulation of sealing position metal surface, can draw
Metal surface rupture is played, cellular pit occurs, and progressively gos deep into metal body, metal level peeling phenomenon is occurred, causes
Valve seal, regulation performance reduce.Valve element after being corroded in practice by cavitation, valve base sealing position occur obvious groove mark,
Phenomena such as seal line is discontinuous, valve is not closed completely close, interior leakage seriously, when causing the part water outlet normal operation of high pressure water pump
Inner circulating reflux be present, water supply system operational efficiency reduces, and drive device consumes energy the problems such as increase.
The content of the invention
The technical problems to be solved by the invention, are just to provide a kind of balanced high pressure differential regulating valve, and it has accumulation of energy storage
Laminated structure, the regulation valve core sealing position for being easiest to occur damaging is removed into cavitation zone, avoids seal spool position from bearing
The high intensity of cavitation is destroyed, and is ensured reliable permanently effective sealing, the regulation performance at seal spool position, is improved high-differential-pressure regulating valve
Durable performance.
Solves above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of balanced high pressure differential regulating valve with accumulation of energy pressure storing cavity structure, described balance regulating valve include decompression
Structure, it is characterized in that：Described pressure reduction structure is divided into inside and outside two layers, the space composition accumulation of energy between ectonexine pressure reduction structure
Pressure storing cavity 5, layer is depressurized based on outer layer, internal layer is that layer is depressurized in accumulation of energy, and regulation valve core 3 is active in accumulation of energy cavity region.
Preferably, the unit circulation area of described accumulation of energy decompression layer and main pressure relief assembly final stage decompression unit circulation area
It is equal.
Preferably, the described balanced high pressure differential regulating valve structure with accumulation of energy pressure storing cavity structure is：
One cylinder-shaped accumulation of energy pressure relief assembly 2, relief hole 4 is provided with cylinder bottom upward, some radial directions are distributed with barrel
Aperture form accumulation of energy decompression layer accumulation of energy decompression throttle orifice 8, nozzle is externally provided with ring plate；
The main pressure relief assembly 1 of one thick tubulose, the aperture bent back and forth that numerous radial directions are distributed with tube wall form main decompression
The main pressure relief assembly final stage throttle orifice 7 of layer, thick pipe lower end are inlaid on the cylinder nozzle outer ring plate of the accumulation of energy pressure relief assembly, thick
Cavity is left between inside pipe wall and cylinder body outer wall and forms described accumulation of energy pressure storing cavity 5；
One tubular valve element 3, nozzle can move up and down down to be adjustably inserted in the accumulation of energy pressure storing cavity.
The described top of valve element 3 is provided with through hole, and provided with equalizing valve component 6 moving up and down, structure is：Described through hole
For 2 up big and down small circular holes, centre is connected with the conical surface, and macropore hole wall above is drilled with oblique aperture connection air, equalizing valve group
The bottom of part 6 has the tapered end to match with the conical surface.
Regulating valve decompression valve cage assembly is split as two parts by the present invention, and outer layer is main pressure relief assembly, and internal layer subtracts for accumulation of energy
Component is pressed, regulation valve core is active in the accumulation of energy region among inside and outside layer pressure relief assembly；Adjusting spool is at main pressure reducing valve component end
After end adjustment flow, after the medium of high flow rate enters accumulation of energy region in main pressure reducing valve component, its flow velocity drastically reduces, in accumulation of energy area
Domain forms relative static pressure field；Medium enters accumulation of energy pressure relief assembly, and accumulation of energy pressure relief assembly is 1 grade of pressure reduction structure, and unit circulates
Area is identical with main pressure relief assembly final stage pressure reduction stage unit circulation area；Pressure difference is small before and after accumulation of energy pressure relief assembly, cavitation after component
Effect is reduced, and the damage capability of component is accordingly reduced, and accumulation of energy pressure relief assembly is handled by surface stiffened and can effectively resisted
The destruction of cavitation.
The technique effect of the present invention is embodied in：
The present invention will be easiest to occur cavitation zone moving to valve cage exit site in regulating valve, away from regulation valve core portion
Position, only makes the accumulation of energy pressure relief assembly of regulating valve be influenceed by cavitation；The main pressure relief assembly exit site flow rate of liquid of regulating valve is with storing
Energy pressure relief assembly Inlet fluid flow velocity is identical, and accumulation of energy region occurs without pressure drop, cavitation and flash distillation will not occur in the region；Due to
The pressure difference in outside is smaller in accumulation of energy pressure relief assembly, and the cavitation intensity that it bears is also smaller；Again because pressure relief assembly is by place of hardening
Case hardness is very high after reason, will not be destroyed when bearing the influence of the cavitation intensity.This kind of structural change avoids valve
The high intensity that core sealing position bears cavitation is destroyed, and is ensured reliable permanently effective sealing, the regulation performance at seal spool position, is carried
The durable performance of high high-differential-pressure regulating valve.
This structure adjusting valve design distinguished is mainly characterized by current High Pressure Difference balanced type regulating valve：By the decompression of regulating valve
Layer is decomposed into inside and outside two layers, the valve element of regulating valve is located at intermediate course pressure stability region, the region without cavitation, flash off
It is existing, the valve element of regulating valve will not be damaged, and its reliable regulation performance is effectively ensured.
This kind of hierarchy valve assembly is decomposed the multi-step pressure reduction level of high-differential-pressure regulating valve, is displaced to valve element
The region of cavitation will not occur, on the one hand avoid valve element from being destroyed by cavitation, ensure the long-term effectiveness at seal spool position；
On the other hand the pressure difference before and after accumulation of energy pressure relief assembly can be reduced, the cavitation effect after accumulation of energy pressure relief assembly is reduced, slows down to group
The destruction of part.
This accumulation of energy pressure storage type structure adjusting valve can be used under the very big operating mode of pressure difference before and after regulating valve, utilize the regulating valve
Both the durable performance of regulating valve can have been improved, the permanently effective regulation performance of regulating valve, sealing property can be kept again.
Brief description of the drawings
Fig. 1 is a whole set of component schematic cross-sectional view of the present invention.
Reference refers in figure：1-main pressure relief assembly；2-accumulation of energy pressure relief assembly；3-valve element；4-relief hole；5—
Accumulation of energy cavity；6-equalizing valve component；7-main pressure relief assembly final stage throttle orifice；8-accumulation of energy pressure relief assembly throttle orifice.
Embodiment
As shown in figure 1, for High Pressure Difference liquid fluid system, easily the system of generation cavitation/flash distillation has accumulation of energy pressure storing cavity structure
Balanced high pressure differential regulating valve embodiment, include pressure reduction structure, pressure reduction structure is divided into inside and outside two layers, ectonexine pressure reduction structure
Between space form the accumulation of energy pressure storing cavity 5, layer is depressurized based on outer layer, internal layer is that layer, the activity of regulation valve core 3 are depressurized in accumulation of energy
In accumulation of energy cavity region.Wherein, the unit circulation area of accumulation of energy decompression layer depressurizes unit circulation area phase with main pressure relief assembly final stage
Deng.
Specifically structure is：
One cylinder-shaped accumulation of energy pressure relief assembly 2, relief hole 4 is provided with cylinder bottom upward, some radial directions are distributed with barrel
Aperture form accumulation of energy decompression layer accumulation of energy decompression throttle orifice 8, nozzle is externally provided with ring plate；The main pressure relief assembly 1 of one thick tubulose, pipe
The aperture that bends back and forth that numerous radial directions are distributed with wall forms the main pressure relief assembly final stage throttle orifice 7 of main decompression layer, under thick pipe
End is inlaid on described cylinder nozzle outer ring plate, and cavity is left between thick inside pipe wall and cylinder body outer wall and forms accumulation of energy pressure storing cavity 5；
One tubular valve element 3, nozzle can move up and down adjustably be inserted in accumulation of energy pressure storing cavity down.
The top of valve element 3 is provided with through hole, and the structure provided with equalizing valve component 6 moving up and down is：Described through hole is upper
2 small circular holes under big, centre are connected with the conical surface, and macropore hole wall above is drilled with oblique aperture connection air, equalizing valve component 6
Bottom has the tapered end to match with the conical surface.
Main pressure relief assembly 1 is placed in that package unit is cylindrical and be inlaid on accumulation of energy pressure relief assembly 2, and main pressure relief assembly subtracts with accumulation of energy
The cavity composition energy storage chamber body 5 among component is pressed, valve element 3 moves up and down adjustment flow in energy storage chamber body；Valve element open when with
Less opening force opens equalizing valve component, lays down pressure difference before and after valve element, and valve element 3 is lifted and moved up and down.
Liquid stream enters energy storage chamber body 5 after entering the decompression of main pressure relief assembly from the main outside of pressure relief assembly 1, by the flow of valve element
After adjustment, into accumulation of energy pressure relief assembly, inside side outflow.
Because the main area of pressure relief assembly final stage throttle orifice 7 is identical with accumulation of energy pressure relief assembly 8 areas of throttle orifice, in energy storage chamber body
Pressure drop does not occur, pressure is identical before and after valve element 3, and cavitation, flash distillation will not occur for the position of valve element 3, and seal spool performance can ensure
Long-term continuous and effective.Liquid stream flows out from accumulation of energy cavity 5 by accumulation of energy pressure relief assembly 2, because liquid stream passes through the drop of main pressure relief assembly 1
The accumulation of energy of pressure and accumulation of energy cavity 5, pressure difference is smaller before and after accumulation of energy pressure relief assembly 2, and it, which is exported, occurs the intensity of cavitation and can substantially reduce,
Destruction to component also substantially weakens, and the reliability of component improves.
Claims (4)
1. a kind of balanced high pressure differential regulating valve with accumulation of energy pressure storing cavity structure, described balance regulating valve includes decompression knot
Structure, it is characterized in that：Described pressure reduction structure is divided into inside and outside two layers, the space composition accumulation of energy storage between ectonexine pressure reduction structure
Chamber (5) is pressed, outer layer is main pressure relief assembly (1), and internal layer is accumulation of energy pressure relief assembly (2), and regulation valve core (3) is active in accumulation of energy alveolus
Domain.
2. the balanced high pressure differential regulating valve according to claim 1 with accumulation of energy pressure storing cavity structure, it is characterized in that：It is described
Accumulation of energy pressure relief assembly unit circulation area and main pressure relief assembly final stage decompression unit circulation area it is equal.
3. the balanced high pressure differential regulating valve according to claim 2 with accumulation of energy pressure storing cavity structure, it is characterized in that：It is described
The balanced high pressure differential regulating valve structure with accumulation of energy pressure storing cavity structure be：
One cylinder-shaped accumulation of energy pressure relief assembly (2), relief hole (4) is provided with cylinder bottom upward, some radial directions are distributed with barrel
Aperture form accumulation of energy decompression layer accumulation of energy decompression throttle orifice (8), the positioning with bottom change piece composition view integrative-structure；
One cylindric main pressure relief assembly (1), the multistage aperture bent back and forth that numerous radial directions are distributed with tube wall form master and subtracted
The main pressure relief assembly final stage throttle orifice (7) of laminate layer, thick pipe lower end are inlaid on described cylinder nozzle outer ring plate, thick inside pipe wall with
Cavity is left between cylinder body outer wall and forms described accumulation of energy pressure storing cavity (5)；
One tubular valve element (3), nozzle can move up and down down to be adjustably assembled in the accumulation of energy pressure storing cavity and can be in cavity
Inside move up and down, play adjustment flow.
4. the balanced high pressure differential regulating valve according to claim 3 with accumulation of energy pressure storing cavity structure, it is characterized in that：It is described
Valve element (3) at the top of be provided with through hole, the structure provided with equalizing valve component (6) moving up and down is：Described through hole is upper big
Under small (2) circular hole, centre connects with the conical surface, and macropore hole wall above is drilled with oblique aperture connection valve and valve body composition epicoele
Body, the bottom of equalizing valve component (6) have the tapered end to match with the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756903.6A CN107387864A (en) | 2017-08-29 | 2017-08-29 | A kind of balanced high pressure differential regulating valve with accumulation of energy storage laminated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756903.6A CN107387864A (en) | 2017-08-29 | 2017-08-29 | A kind of balanced high pressure differential regulating valve with accumulation of energy storage laminated structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387864A true CN107387864A (en) | 2017-11-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710756903.6A Pending CN107387864A (en) | 2017-08-29 | 2017-08-29 | A kind of balanced high pressure differential regulating valve with accumulation of energy storage laminated structure |
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| Country | Link |
|---|---|
| CN (1) | CN107387864A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842647A (en) * | 2017-12-01 | 2018-03-27 | 浙江华益精密机械股份有限公司 | Pressure dissipation device and valve |
| CN110486514A (en) * | 2018-05-14 | 2019-11-22 | 中国石油化工股份有限公司 | A kind of volume control device |
| CN110657251A (en) * | 2019-09-23 | 2020-01-07 | 山东菲特自控阀门制造有限公司 | Series connection valve core double sealing surface multistage pressure reduction regulating valve |
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| US6637452B1 (en) * | 2002-10-08 | 2003-10-28 | Fisher Controls International, Inc. | Valve with self-cleaning trim |
| CN202691106U (en) * | 2012-08-14 | 2013-01-23 | 慎江阀门有限公司 | Valve |
| CN202971976U (en) * | 2012-12-04 | 2013-06-05 | 湖北赛文控制阀有限公司 | Double-orientation maze type high pressure difference adjustment control valve |
| CN203516886U (en) * | 2013-10-14 | 2014-04-02 | 苏州道森阀门有限公司 | Pilot-operated balance valve element of adjusting-type valve |
| CN104913110A (en) * | 2014-03-10 | 2015-09-16 | 阿自倍尔金门株式会社 | Cage-type of pressure reducing device |
| CN207648259U (en) * | 2017-08-29 | 2018-07-24 | 广东粤电靖海发电有限公司 | A kind of balanced high pressure differential regulating valve with accumulation of energy storage laminated structure |
-
2017
- 2017-08-29 CN CN201710756903.6A patent/CN107387864A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6637452B1 (en) * | 2002-10-08 | 2003-10-28 | Fisher Controls International, Inc. | Valve with self-cleaning trim |
| CN202691106U (en) * | 2012-08-14 | 2013-01-23 | 慎江阀门有限公司 | Valve |
| CN202971976U (en) * | 2012-12-04 | 2013-06-05 | 湖北赛文控制阀有限公司 | Double-orientation maze type high pressure difference adjustment control valve |
| CN203516886U (en) * | 2013-10-14 | 2014-04-02 | 苏州道森阀门有限公司 | Pilot-operated balance valve element of adjusting-type valve |
| CN104913110A (en) * | 2014-03-10 | 2015-09-16 | 阿自倍尔金门株式会社 | Cage-type of pressure reducing device |
| CN207648259U (en) * | 2017-08-29 | 2018-07-24 | 广东粤电靖海发电有限公司 | A kind of balanced high pressure differential regulating valve with accumulation of energy storage laminated structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842647A (en) * | 2017-12-01 | 2018-03-27 | 浙江华益精密机械股份有限公司 | Pressure dissipation device and valve |
| CN110486514A (en) * | 2018-05-14 | 2019-11-22 | 中国石油化工股份有限公司 | A kind of volume control device |
| CN110657251A (en) * | 2019-09-23 | 2020-01-07 | 山东菲特自控阀门制造有限公司 | Series connection valve core double sealing surface multistage pressure reduction regulating valve |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |
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| RJ01 | Rejection of invention patent application after publication |