CN103174840A - Static equilibrium valve - Google Patents
Static equilibrium valve Download PDFInfo
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- CN103174840A CN103174840A CN2013101158855A CN201310115885A CN103174840A CN 103174840 A CN103174840 A CN 103174840A CN 2013101158855 A CN2013101158855 A CN 2013101158855A CN 201310115885 A CN201310115885 A CN 201310115885A CN 103174840 A CN103174840 A CN 103174840A
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Abstract
The invention provides a static equilibrium valve and belongs to the technical field of valves. The static equilibrium valve solves the problems, for example, an existing static equilibrium valve is strenuous in hand wheel rotating, and a valve core structure is complex. The static equilibrium valve comprises a valve body, wherein the interior of the valve body is a cavity. A water inlet and a water outlet are respectively arranged on the left side and the right side of the valve body, a valve core is arranged in the valve body, the inner end of a valve rod is connected with the valve core, and the outer end of the valve rod stretches out of the valve body and is connected with a hand wheel. The valve rod is provided with a platen, the valve core comprises a big valve core and a small valve core, the small valve core is fixedly connected with the inner end of the valve rod and arranged in the big valve core, and the outer side face of the small valve core is tightly attached to the inner side face of the big valve core. A reset spring is arranged in the valve body, one end of the reset spring abuts against the bottom portion of the valve body, and the other end of the reset spring abuts against the big valve core. The static equilibrium valve has the advantages of being labor-saving in operation, solving the problem of surging when the valve has a heavy caliber and a small opening, and the like.
Description
Technical field
The invention belongs to valve technology field, relate to a kind of equilibrium valve, particularly a kind of static balancing valve.
Background technique
Static balancing valve also claims equilibrium valve, manual equilibrium valve, digital locked balance valve, dibit modulating valve etc., and it is by changing the gap (aperture) of spool and valve seat, changing the flow resistance of the valve of flowing through to reach the purpose of adjust flux.Large bore valves is when regulating, and the aperture between spool and valve seat hour can be because the spool unbalanced force cause the valve surge, thereby damages the component of valve inner, destroys the sealing of valve.
for the problem of above existence, people have made improvement miscellaneous, and what have has also applied for patent, and for example the Chinese patent literature data discloses Double-valve-core high-differential [application number: 201020693064.1, notice of authorization number: CN201916557U], it comprises valve seat, support, gland, upper cover, the work in copper spirit, valve rod, valve gap and valve body, spool comprises large small valve core, small valve core is connected with stem bottom, and be arranged in big valve core by round nut, top at valve body, the arranged outside of big valve core has throttle sleeve, offer the flow window on throttle sleeve, the bottom of flow window is connected with valve seat, the middle part of valve seat offered head piece, big valve core was right against the top of head piece, be connected with the body cavity wall below the valve seat in overcurrent epistome, the body cavity wall separates entrance branch and outlet stool.
This kind valve adopts big or small double spool structure, reduced the resistance when opening valve, but at throttle down or when the aperture of valve is diminished, pressure due to fluid, still relatively require great effort, and the large small valve core of this kind is to be connected by round nut, and big valve core adopts four balancing hole types, spool complicated structure.
Summary of the invention
The objective of the invention is for the above-mentioned problems in the prior art the static balancing valve of surge problem when a kind of rapid operation being provided and having solved the little aperture of large bore valves.
purpose of the present invention can realize by following technical proposal: a kind of static balancing valve, comprise the inner valve body of cavity that is, the left and right sides of valve body is respectively water intake and water outlet, spool is positioned at valve body, the inner of valve rod is connected with spool, the outer end is stretched out outside valve body and is connected with handwheel, it is characterized in that, has pressing plate on described valve rod, described spool comprises big valve core and small valve core, described small valve core is connected mutually and is positioned at big valve core with the inner of valve rod, the outer side surface of described small valve core and the inner side surface of big valve core are close to and are closed, be provided with Returnning spring in described valve body, one end of described Returnning spring is resisted against the bottom of above-mentioned valve body, the other end is resisted against on above-mentioned big valve core.
During unlatching, rotate handwheel, make small valve core move down the disengaging big valve core by valve rod, form the fluid passage between large small valve core, reach the purpose of pressure release, thereby reduce the resistance of fluid, fully regulate fluid flow, the surge problem when solving the little aperture of valve, Open valve is laborsaving.Be rotated further handwheel, make pressing plate push down big valve core and overcome the elastic force of Returnning spring and the pressure of fluid moves down big valve core, open the fluid passage between big valve core and valve body, regulate aperture between big valve core and valve body by rotation hand wheel, regulate fluid flow, in this process, double infection suddenly can not appear in the handwheel feel, debugs laborsaving.When closing, the backward rotation handwheel, big valve core moves up under the effect of the elastic force of Returnning spring and hydrodynamic pressure, big valve core and valve body form sealing, then small valve core and big valve core formation sealing, fully regulate fluid flow, surge problem when solving the little aperture of valve, in closing process, because greatly reducing, the elastic force effect of Returnning spring rotates the needed power of handwheel, rapid operation.
In above-mentioned a kind of static balancing valve, described big valve core is cone table shape, and described small valve core also is cone table shape, described big valve core bottom have laterally annular gear edge a week, have valve seat in described valve body, above-mentioned gear is along being resisted against on valve seat.
The diameter at the top of big valve core and small valve core is all less than the diameter of bottom, has the through hole that runs through in big valve core, its inner side surface is the conical surface that the outer side surface with small valve core is complementary, big valve core and small valve core form hard sealing being close to when closing, gear edge and base lean big valve core is positioned, and be simple in structure.
In above-mentioned a kind of static balancing valve, has seal ring one between described big valve core and valve seat.
Gap between seal ring one sealing big valve core and valve seat makes the overall sealing performance of this valve good.
In above-mentioned a kind of static balancing valve, the bottom of described big valve core has annular slot one, and described valve body bottom has annular slot two, and an end of above-mentioned Returnning spring is positioned at annular slot one, and the other end is positioned at annular slot two.
Annular slot one and annular slot two are that the position to Returnning spring is fixed, Returnning spring is installed firmly, prevent that Returnning spring from departing from the position in use for some time, cause the elastic force direction of Returnning spring to produce deviation, thereby have influence on the normal running of valve.
In above-mentioned a kind of static balancing valve, have guide cylinder in described valve body, the inner side surface that above-mentioned valve rod is positioned at the outer side surface of guide cylinder and valve rod and guide cylinder is close to and is closed.
Guide cylinder plays guiding and spacing, and guide cylinder is the passage that valve rod moves up and down, even and the valve rod brute force that is subject to fluid impact, valve rod can not rock yet, valve rod can not be offset, firm degree is high, good stability.
In above-mentioned a kind of static balancing valve, described valve rod comprises screw mandrel and screw rod bushing, and an end of described screw mandrel stretches out outside valve body and is connected with handwheel, and above-mentioned pressing plate is fixed on screw rod bushing.
Screw mandrel and screw rod bushing are threaded connection, rotation hand wheel, and screw mandrel precession or back-out screw rod bushing are with the purpose that realizes that screw rod bushing can move up and down.
In above-mentioned a kind of static balancing valve, have lock sleeve between described screw mandrel and guide cylinder, above-mentioned screw mandrel is axially fixed in valve body by lock sleeve.
Screw mandrel is axially fixed in valve body, and the precision when valve rod band movable valve plug is moved up and down is high, and degree of regulation is high, and is simple in structure.
In above-mentioned a kind of static balancing valve, be provided with seal ring two between described screw mandrel and guide cylinder.
Gap between seal ring two sealing screw mandrels and guide cylinder makes the overall sealing performance of this valve good.
In above-mentioned a kind of static balancing valve, the water outlet of described valve body and water intake are equipped with the push type test head.
The setting of test head when needed, can be at any time carried out real-time detection to data such as the pressure of the fluid of valve body water outlet and water inlet and flow velocitys.
In above-mentioned a kind of static balancing valve, be fixed with locating stud on described valve rod, and locating stud is positioned at outside valve body.
Preset the rotational travel of handwheel.
Compared with prior art, static balancing valve provided by the invention has the following advantages:
1, this static balancing valve adopts big or small double spool structure, effectively reduces the resistance of the fluid of valve when opening or closing, and fully regulates fluid flow, the surge problem when solving the little aperture of valve.
2, this static balancing valve is provided with Returnning spring between valve body and big valve core, and Returnning spring has the trend that promotes big valve core and valve seat closure, greatly reduces operator's needed power when the debug process transfer is started to take turns, rapid operation.
Description of drawings
Fig. 1 is the overall structure schematic diagram of this static balancing valve.
Fig. 2 is the overall structure sectional view of this static balancing valve.
Fig. 3 is the enlarged view of a-quadrant of Fig. 2 of this static balancing valve.
Fig. 4 is the big valve core of this static balancing valve and the structural representation of small valve core.
Fig. 5 is the plan view of the pressing plate of this static balancing valve.
In figure, 1, valve body; 2, water intake; 3, water outlet; 4, spool; 4a, big valve core; 4a1, the gear edge; 4a2, draw-in groove one; 4b, small valve core; 5, valve rod; 5a, screw mandrel; 5b, screw rod bushing; 6, handwheel; 7, pressing plate; 8, Returnning spring; 9, valve seat; 10, seal ring one; 11, draw-in groove two; 12, bonnet; 13, bottom flange; 14, guide cylinder; 15, lock sleeve; 16, seal ring two; 17, push type test head; 18, locating stud.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1 and Figure 2, this static balancing valve comprises valve body 1, spool 4, valve rod 5, handwheel 6 and Returnning spring 8.
The inside of valve body 1 is cavity, and its left side be water intake 2, and the right side is water outlet 3, and water outlet 3 and water intake 2 places all have a through hole, is used for installing push type test head 17, facilitates the data such as flow to valve body 1 water outlet 3 and water intake 2 places, pressure to detect.The top of valve body 1 has been bolted bonnet 12, and the middle part in the cavity of valve body 1 has valve seat 9, and the lower thread of valve body 1 is connected with bottom flange 13, and the inboard of bottom flange 13 has annular slot 2 11, also has nut on bottom flange 13.
Have a tubular guide cylinder 14 in bonnet 12, after installation, guide cylinder 14 is positioned at the cavity of valve body 1 inside.
Valve rod 5 is positioned at guide cylinder 14, it comprises screw mandrel 5a and screw rod bushing 5b, and the outer side surface of screw mandrel 5a and screw rod bushing 5b all fits with the inner side surface of guide cylinder 14, and the movement of 14 pairs of valve rods 5 of guide cylinder play the guiding role, and make valve rod 5 can keep stable under the impact of fluid, can not produce skew.Screw mandrel 5a and screw rod bushing 5b are threaded connection, the other end of screw mandrel 5a stretches out outside bonnet 12 and is connected with handwheel 6, also has locating stud 18 on screw mandrel 5a, be used for setting the stroke that handwheel 6 rotates, have lock sleeve 15 and seal ring 2 16 between screw mandrel 5a and guide cylinder 14, lock sleeve 15 is fixed in bonnet 12 by pressure strip, thereby screw mandrel 5a is axially fixed in guide cylinder 14, gap between seal ring 2 16 sealing screw mandrel 5a and guide cylinder 14 makes the overall sealing performance of valve good.
Spool 4 is positioned at the cavity of valve body 1, comprises big valve core 4a and small valve core 4b, and as Fig. 2, shown in Figure 4, big valve core 4a and small valve core 4b all are cone table shape, and the diameter at top is less than the diameter of bottom, and small valve core 4b is fixed on the bottom of the screw rod bushing 5b of valve rod 5.Have the through hole that runs through in big valve core 4a, the shape of the shape of the inner side surface of big valve core 4a and small valve core 4b outer side surface is complementary, and small valve core 4b is positioned at big valve core 4a, and the inner side surface of the outer side surface of small valve core 4b and big valve core 4a is close to and closes, and forms sealing firmly.Has laterally the annular gear week of the bottom of big valve core 4a along 4a1, the annular gear is resisted against on valve seat 9 along 4a1, blocks the fluid passage between big valve core 4a and valve body 1, also is provided with seal ring 1 between big valve core 4a and valve seat 9, gap between sealing big valve core 4a and valve seat 9, good sealing effect.Has annular slot one 4a2 on the end face of the bottom of big valve core 4a.
Returnning spring 8 is positioned at the bottom of valve body 1, one end is positioned at annular slot one 4a2 of big valve core 4a bottom surface, the other end is positioned at the annular slot 2 11 on bottom flange 13, this kind structure is fixed in valve body 1 Returnning spring 8, firmly degree is high, good stability, the elastic force of Returnning spring 8 is very strong, can jack-up the big valve core 4a gear that makes big valve core 4a along 4a1 being resisted against on valve seat 9 in valve body 1 tightly.
during use, rotation hand wheel 6, handwheel 6 drives screw mandrel 5a and rotates, the rotation of screw mandrel 5a slowly moves down screw rod bushing 5b, thereby make small valve core 4b break away from big valve core 4a, fluid flows through from the gap between big valve core 4a and small valve core 4b, reach the purpose of pressure release, reduce the resistance of fluid, flow when regulating fluid by spool 4, solve the surge problem of valve body 1, after screw rod bushing 5b moves down into to a certain degree, pressing plate 7 on screw rod bushing 5b is pressed in the top of big valve core 4a, and the elastic force promotion big valve core 4a that overcomes spring moves down, the fluid passage of this moment is fluid passage between big valve core 4a and valve seat 9 and the fluid passage of big valve core 4a and small valve core 4b, by rotating handwheel 6, control moving up and down of screw rod bushing 5b, reach the purpose of regulating spool 4 apertures, thereby reach the fluid flow of regulating valve and pressure etc.When needing throttle down or regulating valve to arrive less aperture, counterrotating handwheel 6, make on screw rod bushing 5b and move, move on pressing plate 7 and no longer push down big valve core 4a, big valve core 4a is resisted against on pressing plate 7 big valve core 4a moving on by jack-up under the effect of Returnning spring 8 elastic force, and this process is that the effect by Returnning spring 8 elastic force makes on big valve core 4a and moves, reduce the power that operator's rotation hand wheel 6 uses, rapid operation.Screw rod bushing 5b moves on continuing, the gear of big valve core 4a is resisted against on valve seat 9 along 4a1, big valve core 4a and valve body 1 form sealing, screw rod bushing 5b moves on continuing, the outer side surface of small valve core 4b is fitted on the inner side surface of big valve core 4a, big valve core 4a and small valve core 4b form sealing, and this moment, valve was in the state of closing.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has more used valve body 1, water outlet 2, water intake 3, spool 4, big valve core 4a, gear along terms such as 4a1, draw-in groove one 4a2, small valve core 4b, valve rod 5, screw mandrel 5a, screw rod bushing 5b, handwheel 6, pressing plate 7, Returnning spring 8, valve seat 9, seal ring 1, draw-in groove 2 11, bonnet 12, bottom flange 13, guide cylinder 14, lock sleeve 15, seal ring 2 16, push type test head 17, locating studs 18, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. static balancing valve, comprise the inner valve body of cavity (1) that is, the left and right sides of valve body (1) is respectively water intake (2) and water outlet (3), spool (4) is positioned at valve body (1), the inner of valve rod (5) is connected with spool (4), the outer end is stretched out outside valve body (1) and is connected with handwheel (6), it is characterized in that, has pressing plate (7) on described valve rod (5), described spool (4) comprises big valve core (4a) and small valve core (4b), described small valve core (4b) is connected mutually and is positioned at big valve core (4a) with the inner of valve rod (5), the inner side surface of the outer side surface of described small valve core (4b) and big valve core (4a) is close to and is closed, be provided with Returnning spring (8) in described valve body (1), one end of described Returnning spring (8) is resisted against the bottom of above-mentioned valve body (1), the other end is resisted against on above-mentioned big valve core (4a).
2. a kind of static balancing valve according to claim 1, it is characterized in that, described big valve core (4a) is cone table shape, described small valve core (4b) also is cone table shape, the annular that has laterally in week of described big valve core (4a) bottom is kept off along (4a1), have valve seat (9) in described valve body (1), above-mentioned gear is resisted against on valve seat (9) along (4a1).
3. a kind of static balancing valve according to claim 2, is characterized in that, has seal ring one (10) between described big valve core (4a) and valve seat (9).
4. a kind of static balancing valve according to claim 1 and 2, it is characterized in that, the bottom of described big valve core (4a) has annular slot one (4a2), described valve body (1) bottom has annular slot two (11), one end of above-mentioned Returnning spring (8) is positioned at annular slot one (4a2), and the other end is positioned at annular slot two (11).
5. a kind of static balancing valve according to claim 1 and 2, it is characterized in that, have guide cylinder (14) in described valve body (1), the inner side surface that above-mentioned valve rod (5) is positioned at the outer side surface of guide cylinder (14) and valve rod (5) and guide cylinder (14) is close to and is closed.
6. a kind of static balancing valve according to claim 1 and 2, it is characterized in that, described valve rod (5) comprises screw mandrel (5a) and screw rod bushing (5b), one end of described screw mandrel (5a) stretches out outside valve body (1) and is connected with handwheel (6), and above-mentioned pressing plate (7) is fixed on screw rod bushing (5b).
7. a kind of static balancing valve according to claim 6, is characterized in that, has lock sleeve (15) between described screw mandrel (5a) and guide cylinder (14), and above-mentioned screw mandrel (5a) is axially fixed in valve body (1) by lock sleeve (15).
8. a kind of static balancing valve according to claim 6, is characterized in that, is provided with seal ring two (16) between described screw mandrel (5a) and guide cylinder (14).
9. a kind of static balancing valve according to claim 1 and 2, is characterized in that, water outlet (3) and the water intake (2) of described valve body (1) are equipped with push type test head (17).
10. a kind of static balancing valve according to claim 1 and 2, is characterized in that, is fixed with locating stud (18) on described valve rod (5), and locating stud (18) is positioned at outside valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115885.5A CN103174840B (en) | 2012-12-03 | 2013-04-03 | Static equilibrium valve |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210521644 CN102943910A (en) | 2012-12-03 | 2012-12-03 | Static balance valve |
| CN2012105216446 | 2012-12-03 | ||
| CN201210521644.6 | 2012-12-03 | ||
| CN201310115885.5A CN103174840B (en) | 2012-12-03 | 2013-04-03 | Static equilibrium valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174840A true CN103174840A (en) | 2013-06-26 |
| CN103174840B CN103174840B (en) | 2015-07-22 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210521644 Pending CN102943910A (en) | 2012-12-03 | 2012-12-03 | Static balance valve |
| CN 201320165750 Expired - Lifetime CN203272806U (en) | 2012-12-03 | 2013-04-03 | Static balance valve |
| CN201310115885.5A Expired - Fee Related CN103174840B (en) | 2012-12-03 | 2013-04-03 | Static equilibrium valve |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210521644 Pending CN102943910A (en) | 2012-12-03 | 2012-12-03 | Static balance valve |
| CN 201320165750 Expired - Lifetime CN203272806U (en) | 2012-12-03 | 2013-04-03 | Static balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN102943910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483696A (en) * | 2022-02-17 | 2022-05-13 | 河北墨峻科技有限公司 | Multipurpose valve with throttling and unloading functions |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943910A (en) * | 2012-12-03 | 2013-02-27 | 卓旦春 | Static balance valve |
| US10690263B2 (en) * | 2015-05-06 | 2020-06-23 | Fisher Controls International Llc | Valve trim apparatus having multiple fluid flow control members |
| CN106286852A (en) * | 2015-06-23 | 2017-01-04 | 张家港市舜辰机械有限公司 | A kind of valve |
| CN106321857A (en) * | 2015-06-23 | 2017-01-11 | 张家港市舜辰机械有限公司 | High-tightness valve |
| CN106321944A (en) * | 2015-06-23 | 2017-01-11 | 张家港市舜辰机械有限公司 | Hand pressure valve |
| CN106321859A (en) * | 2015-06-23 | 2017-01-11 | 张家港市舜辰机械有限公司 | Spring mounting structure of valve |
| CN106764040A (en) * | 2017-01-23 | 2017-05-31 | 森格斯输配设备(宁波)有限公司 | A kind of balanced valve for gas pressure regulating valve |
| JP6505151B2 (en) * | 2017-03-23 | 2019-04-24 | 株式会社不二工機 | Flow control valve |
| CN107131305A (en) * | 2017-05-09 | 2017-09-05 | 厦门匠仕工业设计有限公司 | A kind of pressure relief and the angle valve with the pressure relief |
| CN110094528B (en) * | 2019-06-13 | 2024-06-21 | 云南煤化集团工程技术有限公司 | A open and close valve for gasification coal lock sediment lock |
| CN111828421B (en) * | 2020-07-14 | 2022-12-09 | 江苏汇智高端工程机械创新中心有限公司 | Valve core and balance valve |
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| US6729351B2 (en) * | 2000-02-22 | 2004-05-04 | Delphi Technologies, Inc. | Expanded range multiple-stage metering valve |
| US6745794B2 (en) * | 2002-06-07 | 2004-06-08 | Praxair Technology, Inc. | Flow control valve |
| CN101813192A (en) * | 2010-04-13 | 2010-08-25 | 无锡市亚迪流体控制技术有限公司 | High-flow adjustable ratio control valve |
| CN101975308A (en) * | 2010-11-02 | 2011-02-16 | 卓旦春 | Static balance valve |
| CN102628523A (en) * | 2012-04-24 | 2012-08-08 | 卓旦春 | Pilot type control valve |
| CN203272806U (en) * | 2012-12-03 | 2013-11-06 | 卓旦春 | Static balance valve |
-
2012
- 2012-12-03 CN CN 201210521644 patent/CN102943910A/en active Pending
-
2013
- 2013-04-03 CN CN 201320165750 patent/CN203272806U/en not_active Expired - Lifetime
- 2013-04-03 CN CN201310115885.5A patent/CN103174840B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6729351B2 (en) * | 2000-02-22 | 2004-05-04 | Delphi Technologies, Inc. | Expanded range multiple-stage metering valve |
| US6745794B2 (en) * | 2002-06-07 | 2004-06-08 | Praxair Technology, Inc. | Flow control valve |
| CN101813192A (en) * | 2010-04-13 | 2010-08-25 | 无锡市亚迪流体控制技术有限公司 | High-flow adjustable ratio control valve |
| CN101975308A (en) * | 2010-11-02 | 2011-02-16 | 卓旦春 | Static balance valve |
| CN102628523A (en) * | 2012-04-24 | 2012-08-08 | 卓旦春 | Pilot type control valve |
| CN203272806U (en) * | 2012-12-03 | 2013-11-06 | 卓旦春 | Static balance valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483696A (en) * | 2022-02-17 | 2022-05-13 | 河北墨峻科技有限公司 | Multipurpose valve with throttling and unloading functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103174840B (en) | 2015-07-22 |
| CN203272806U (en) | 2013-11-06 |
| CN102943910A (en) | 2013-02-27 |
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