CN103047475A - Regional control valve - Google Patents
Regional control valve Download PDFInfo
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- CN103047475A CN103047475A CN2012105631044A CN201210563104A CN103047475A CN 103047475 A CN103047475 A CN 103047475A CN 2012105631044 A CN2012105631044 A CN 2012105631044A CN 201210563104 A CN201210563104 A CN 201210563104A CN 103047475 A CN103047475 A CN 103047475A
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- piston
- valve
- push rod
- control valve
- cavity
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Abstract
The invention discloses a regional control valve. The regional control valve comprises a valve body (1) and a valve core assembly mounted on the valve body (1), wherein the valve core assembly comprises a valve core body (2), a push rod penetrating through the valve core body (2), and a piston (4) fixed at the tail end of the push rod (3), a valve body sealing surface (11) is formed in the valve body (1), the piston (4) adjusts flow quantity of fluid flowing through the valve body sealing surface (11), a sealed upper piston cavity (71) is formed between the piston (4) and the valve core body (2), a lower piston cavity (72) is arranged below the piston (4), and a through hole (41) is reserved on the piston (4) and communicates the sealed upper piston cavity (71) with the lower piston cavity (72). By the structural design of the regional control valve, on one hand, the piston is prevented from vibrating under the action of hydraulic impact and then impacting the valve body sealing surface to generate noise, and on the other hand, linear adjustment of the flow quantity can be realized.
Description
Technical field
The present invention relates to valve body control unit technical field, more particularly to a kind of regional control valve.
Background technology
Regional control valve is a kind of device being connected with Region control valve actuator, it is connected on the controller with two point form output end, such as room temperature controller, wet control device or floor heating remote control system, a kind of brand-new performs device for controlling end-equipment flow and heat.
Regional control valve and Region control valve actuator are widely used in floor, ceiling width and penetrate heating and refrigeration system after coordinating, air-conditioning system, radiator heating system, and some other needs temperature control or needed in the system that fluid on-off is controlled.Regional control valve should be used cooperatively with Region control valve actuator.
Prior art regional control valve fully relies on temperature-sensing element thermometer bulb and comes mandatory regional control valve closing and regulation.In the prior art due to the limitation of structure, regional control valve is in pressure difference 0.6bra, and area of passage is also very big, flow is unable to completely close, when Region control valve piston and valve body sealing surface deposit very little gap, sealing gasket sweeps away generation vibration in hydraulic pressure and hit with valve body sealing surface, easily produces noise；Due to fully rely on thermometer bulb strength come adjustment region control valve, when regional control valve flow is very big and regional control valve open moment the linear regulation performance of flow it is undesirable.
The content of the invention
The technical problem to be solved in the present invention is a kind of regional control valve of offer, on the one hand the structure design of the regional control valve can avoid piston that vibration occurs under the impact of hydraulic pressure and is hit with valve body sealing surface and produces noise, on the other hand can realize the linear regulation of flow.
In order to solve the above technical problems, the present invention provides a kind of regional control valve, including valve body and the core assembly that is installed on the valve body；The core assembly include insert body, through the insert body push rod and be fixed on the piston of push rod end；Valve body sealing surface, the flow for the fluid that the piston regulation passes through the valve body sealing surface are formed with the valve body；The cavity formed between the piston and the insert body below Packed piston upper chamber, the piston is piston cavity of resorption；
The piston is provided with through hole, and the through hole connects the piston upper chamber and piston cavity of resorption.
Preferably, the piston is shaped as U-shaped parallel to the section of push rod axis, and the push rod is stretched into the U-shaped hole of the piston, and is fixed on the bottom wall of piston.
Preferably, the through hole is on the bottom wall of piston, and its quantity is multiple, and each through hole is uniformly distributed around push rod.
Preferably, the U-shaped wall outer surface of the piston, which is provided with annular groove, the annular groove, is provided with seal, and the lower end inside wall of the seal and insert body is sealed.
Preferably, the insert body is provided with valve core cavity, and the push rod passes through the valve core cavity, and in the valve core cavity, the outside of the push rod is cased with the elastomeric element compressed, and the elastomeric element gives the push rod upward thrust.
Preferably, the insert body includes valve core case and cartridge cover, and the cartridge cover is installed on the openend of the valve core case and surrounds the valve core cavity；The push rod passes through the valve core case and cartridge cover.
The present invention has the following technical effect that：
On the basis of existing technology, regional control valve provided by the present invention, including valve body and the core assembly that is installed on the valve body；The core assembly include insert body, through the insert body push rod and be fixed on the piston of push rod end；Valve body sealing surface, the flow for the fluid that the piston regulation passes through the valve body sealing surface are formed with the valve body；The cavity formed between the piston and the insert body below Packed piston upper chamber, the piston is piston cavity of resorption；The piston is provided with through hole, and the through hole connects the piston upper chamber and piston cavity of resorption.
In said structure, invention increases unload power structure, multiple through holes are added on piston, material is thus formed dummy piston structure, when regional control valve needs to close, in the presence of hydraulic pressure, the pressure of piston upper chamber and the pressure of piston cavity of resorption are almost, upper and lower cavity pressure differential is equal to the difference F=P* (S1-S2) of above and below the pressure * cavity areas before valve, and such thermometer bulb is easy for closing more；Simultaneously because regional control valve is all consistent in the pressure born of whole process, so the linear regulation performance of regional control valve flow in whole process is fine.
In summary, on the one hand regional control valve provided by the present invention can avoid piston that vibration occurs under the impact of hydraulic pressure and is hit with valve body sealing surface and produces noise, on the other hand can realize the linear regulation of flow.
Brief description of the drawings
Fig. 1 is the structural representation of regional control valve in an embodiment of the present invention.
Wherein, the corresponding relation between Fig. 1 references and component names is：
1 valve body；11 valve body sealing surfaces；
2 insert bodies；21 valve core cavities；22 valve core cases；23 cartridge covers；
3 push rods；
4 pistons；41 through holes；42U type holes；
5 elastomeric elements；
6 seals；
71 piston upper chambers；72 piston cavity of resorptions.
Embodiment
The core of the present invention is provides a kind of regional control valve, and on the one hand the structure design of the regional control valve can avoid piston that vibration occurs under the impact of hydraulic pressure and is hit with valve body sealing surface and produces noise, on the other hand can realize the linear regulation of flow.
In order that those skilled in the art more fully understands technical scheme, the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is refer to, Fig. 1 is the structural representation of regional control valve in an embodiment of the present invention.
In one embodiment, as shown in figure 1, regional control valve provided by the present invention, including valve body 1 and the core assembly that is installed on the valve body 1；Core assembly include insert body 2, through the insert body 2 push rod 3 and be fixed on the piston 4 of the end of push rod 3；Valve body sealing surface 11, the flow for the fluid that the regulation of piston 4 passes through the valve body sealing surface 11 are formed with valve body 1；Packed piston upper chamber 71 is formed between piston 4 and insert body 2, the cavity of the lower section of piston 4 is piston cavity of resorption 72；Piston 4 is provided with through hole 41, the through hole 41 connection piston upper chamber 71 and piston cavity of resorption 72.
Specifically, as shown in figure 1, piston 4 is shaped as U-shaped parallel to the section of the axis of push rod 3, push rod 3 is stretched into the U-shaped hole 42 of the piston 4, and is fixed on the bottom wall of piston 4.Through hole 41 is on the bottom wall of piston 4, and its quantity is multiple, and each through hole 41 is uniformly distributed around push rod 3.
In said structure, invention increases unload power structure, multiple through holes are added on piston 4, material is thus formed dummy piston structure, when regional control valve needs to close, in the presence of hydraulic pressure, the pressure of piston upper chamber 71 and the pressure of piston cavity of resorption 72 are almost, upper and lower cavity pressure differential is equal to the difference F=P* (S1-S2) of above and below the pressure * cavity areas before valve, and such thermometer bulb is easy for closing more；Simultaneously because regional control valve is all consistent in the pressure born of whole process, so the linear regulation performance of regional control valve flow in whole process is fine.
To sum up, on the one hand regional control valve provided by the present invention can avoid piston 4 from occurring to vibrate and hit with valve body sealing surface 11 and produce noise under the impact of hydraulic pressure, on the other hand can realize the linear regulation of flow.
Further, as shown in figure 1, the U-shaped wall outer surface of piston 4, which is provided with annular groove, the annular groove, is provided with seal 6, the lower end inside wall of the seal 6 and insert body 2 is sealed.This kind of structure design realizes isolating seal well.
In addition, in said structure, further specific design can also be made.
As shown in figure 1, insert body 2 is provided with valve core cavity 21, push rod 3 passes through the valve core cavity 21, and in the valve core cavity 21, the outside of push rod 3 is cased with the elastomeric element 5 compressed, and the elastomeric element 5 gives push rod 3 upward thrust.This kind of structure design make it that push rod is provided with elastic reset function.
In addition, as shown in figure 1, insert body 2 includes valve core case 22 and cartridge cover 23, the cartridge cover 23 is installed on the openend of valve core case 22 and surrounds valve core cavity 21；Push rod 3 passes through valve core case 22 and cartridge cover 23.In this kind of structure design, insert body 2 is Split type structure, because easily realizing the setting of valve core cavity.
On the basis of said structure, further improvement can be made.Such as, as shown in figure 1, in valve core cavity 21, the first seal groove is offered in the bottom interior wall of valve core case 22, the first seal provided with the circumferential exterior for being placed on push rod 3 in first seal groove.This kind of structure design adds one of sealing, so as to improve sealing property.
Further, be additionally provided with the first limiting component first seal being limited in the first seal groove in the bottom interior wall of valve core case 22, and the bottom of elastomeric element 5 is supported on the top surface of first limiting component.First limiting component can prevent that first seal from departing from from groove.In addition, first limiting component can play the support to elastomeric element 5.
In addition, as shown in figure 1, in valve core cavity 21, the second seal groove is offered in the top inner wall of valve core case 22, the second seal provided with the circumferential exterior for being placed on push rod 3 in second seal groove.This kind of structure design adds one of sealing again, so as to further improve sealing property.
As shown in figure 1, being additionally provided with the second limiting component being limited in second seal in the second seal groove in the bottom interior wall of valve core case 22.Second limiting component can prevent that second seal from departing from from groove.In addition, the screens part of second limiting component position hereinafter provides screens basis.
Further, as shown in figure 1, the external stability of push rod 3 has screens part, the screens part is connected on the second limiting component, and the top of elastomeric element 5 is connected on screens part.The top of elastomeric element 5 is further connected on screens part by spring base.In this kind of structure design, the bottom of elastomeric element 5 is supported on the first limiting component, and its top abuts spring base, thus under the elastic force effect of the elastomeric element 5 of compression, gives push rod 3 upward thrust.
A kind of regional control valve provided by the present invention is described in detail above.Specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (6)
1. a kind of regional control valve, including valve body（1）And it is installed on the valve body（1）On core assembly；The core assembly includes insert body（2）, through the insert body（2）Push rod（3）And it is fixed on push rod（3）The piston of end（4）；The valve body（1）In be formed with valve body sealing surface（11）, the piston（4）Regulation passes through the valve body sealing surface（11）Fluid flow；The piston（4）With the insert body（2）Between form Packed piston upper chamber（71）, the piston（4）The cavity of lower section is piston cavity of resorption（72）；Characterized in that,
The piston（4）It is provided with through hole（41）, the through hole（41）Connect the piston upper chamber（71）With piston cavity of resorption（72）.
2. regional control valve as claimed in claim 1, it is characterised in that the piston（4）Parallel to push rod（2）Being shaped as the section of axis is U-shaped, the push rod（3）Stretch into the piston（4）U-shaped hole（42）In, and it is fixed on piston（4）Bottom wall on.
3. regional control valve as claimed in claim 2, it is characterised in that the through hole（41）Located at piston（4）Bottom wall on, and its quantity is multiple, and each through hole（41）Around push rod（3）It is uniformly distributed.
4. regional control valve as claimed in claim 2 or claim 3, it is characterised in that the piston（4）U-shaped wall outer surface be provided with annular groove, seal is provided with the annular groove（6）, the seal（6）With insert body（2）Lower end inside wall sealing.
5. the regional control valve as described in claim any one of 1-3, it is characterised in that the insert body（2）Provided with valve core cavity（21）, the push rod（3）Through the valve core cavity（21）, and in the valve core cavity（21）In, the push rod（3）Outside be cased with the elastomeric element compressed（5）, the elastomeric element（5）Give the push rod（3）Upward thrust.
6. noise-proofing thermostatic valve as claimed in claim 5, it is characterised in that the insert body（2）Including valve core case（22）And cartridge cover（23）, the cartridge cover（23）It is installed on the valve core case（22）Openend on and surround the valve core cavity（21）；The push rod（3）Through the valve core case（22）And cartridge cover（23）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105631044A CN103047475A (en) | 2012-12-22 | 2012-12-22 | Regional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105631044A CN103047475A (en) | 2012-12-22 | 2012-12-22 | Regional control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103047475A true CN103047475A (en) | 2013-04-17 |
Family
ID=48060230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105631044A Pending CN103047475A (en) | 2012-12-22 | 2012-12-22 | Regional control valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN103047475A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2067722A (en) * | 1980-01-23 | 1981-07-30 | Northern Eng Ind | Steam turbine governing valve |
| JPH0893964A (en) * | 1994-09-20 | 1996-04-12 | Yamatake Honeywell Co Ltd | Valve device |
| CN201057283Y (en) * | 2007-07-20 | 2008-05-07 | 李军 | Oxygen flame-proof balanced type break valve |
| CN101415982A (en) * | 2006-01-30 | 2009-04-22 | 丹佛斯公司 | Valve |
| CN201680055U (en) * | 2009-12-11 | 2010-12-22 | 天津精通控制仪表技术有限公司 | Noise reduction type adjusting valve |
| CN201747950U (en) * | 2010-08-02 | 2011-02-16 | 上海三洲自控仪表有限公司 | Novel control valve |
| CN102679032A (en) * | 2012-05-31 | 2012-09-19 | 无锡宝牛阀业有限公司 | Pressure balance type porous noise reduction sleeve guide adjusting valve |
| CN203082353U (en) * | 2012-12-22 | 2013-07-24 | 北京菁华昱创节能设备有限公司 | Regional control valve |
-
2012
- 2012-12-22 CN CN2012105631044A patent/CN103047475A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2067722A (en) * | 1980-01-23 | 1981-07-30 | Northern Eng Ind | Steam turbine governing valve |
| JPH0893964A (en) * | 1994-09-20 | 1996-04-12 | Yamatake Honeywell Co Ltd | Valve device |
| CN101415982A (en) * | 2006-01-30 | 2009-04-22 | 丹佛斯公司 | Valve |
| CN201057283Y (en) * | 2007-07-20 | 2008-05-07 | 李军 | Oxygen flame-proof balanced type break valve |
| CN201680055U (en) * | 2009-12-11 | 2010-12-22 | 天津精通控制仪表技术有限公司 | Noise reduction type adjusting valve |
| CN201747950U (en) * | 2010-08-02 | 2011-02-16 | 上海三洲自控仪表有限公司 | Novel control valve |
| CN102679032A (en) * | 2012-05-31 | 2012-09-19 | 无锡宝牛阀业有限公司 | Pressure balance type porous noise reduction sleeve guide adjusting valve |
| CN203082353U (en) * | 2012-12-22 | 2013-07-24 | 北京菁华昱创节能设备有限公司 | Regional control valve |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |