CN203718077U - Piston type balance valve - Google Patents
Piston type balance valve Download PDFInfo
- Publication number
- CN203718077U CN203718077U CN201320805133.7U CN201320805133U CN203718077U CN 203718077 U CN203718077 U CN 203718077U CN 201320805133 U CN201320805133 U CN 201320805133U CN 203718077 U CN203718077 U CN 203718077U
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- China
- Prior art keywords
- valve
- piston type
- valve body
- flap
- valve seat
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- Expired - Fee Related
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- 230000008676 import Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000010792 warming Methods 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a piston type balance valve, wherein the two sides of a valve body of the balance valve are respectively provided with an inlet and an outlet, an upper valve cover seals the upper part of the valve body, a lower valve cover seals the lower part of the valve body, a plurality of piston components are arranged in a valve cavity, an upper valve rod is connected with a piston type upper valve flap in an upper valve cover opened cylinder body through the upper valve cover, a sleeve type stepped valve seat is arranged at the lower part of the valve body and is sealed by the lower valve cover, the sleeve type stepped valve seat is internally provided with a piston type lower valve flap and a driving piston, the piston type lower valve flap and the driving piston are connected by utilizing a lower valve rod, the piston type upper valve flap and the piston type lower valve flap are respectively provided with a balance hole, the upper part of the sleeve type stepped valve seat is provided with a plurality of special-shaped windows, a lower cavity of the driving piston and the inlet of the valve body are communicated by a guiding pipe, and an upper cavity of the driving piston is provided with a balance spring. The piston type balance valve is used for regulating the flow of a medium in an air-conditioner warming pipeline, automatically eliminating the interference among branch pipes in a system, eliminating the hydraulic disorder of the system, and enabling the system to operate smoothly and precisely control the room temperature; the energy consumption can be remarkably reduced.
Description
Technical field
The utility model relates to a kind of plunger-type balance valve.
Background technique
Conventionally in service in air-conditioning HVAC system, the phenomenon of pipeline medium ubiquity hydraulic misadjustment, inconsistent in namely heat supply or cold supply system between the pipeline medium actual flow of user side and designing requirement flow, that this phenomenon can make is uneven in temperature in building, temperature is controlled unstable, inaccurate, not only do not reach the object that regulates the sense of temperature and improving body, also can cause great energy waste, the energy of this part waste accounts for the 8%-15% of central air-conditioning system total energy consumption.
General in the pipeline of air-conditioning HVAC system, be provided with all kinds ofly for regulating the valve of rate-of flow, such valve is divided into two kinds of static balancing valve and dynamic balance valves; Static balancing valve is estimated the inconsistent of flow value with design, the impact on other branch road flow when dynamic balance valve is used for some branch road changes in flow rate of elimination system for eliminating the pipe-line system actual flow causing due to reasons such as design, construction, equipment and materialss.Therefore in pipeline, need to install dynamic balance valve and static balancing valve simultaneously and could substantially realize rate-of flow adjusting and hydraulic equilibrium, this mode input cost is high, large, Installation and Debugging complex procedures take up room; Static balancing valve is set very complicated in system simultaneously, should not realize automation and control, and the degree of regulation of dynamic balance valve is not high.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of plunger-type balance valve, this equilibrium valve has overcome the defect of pipe valve in traditional air-conditioning HVAC system, the convenient flow that regulates pipeline medium, automatically the interference between each arm in elimination system, eliminate hydraulic misadjustment, system is operated steadily, and room temperature precise control, significantly reduces energy consumption.
For solving the problems of the technologies described above, the utility model plunger-type balance valve comprises valve body, bonnet and bottom flange, described valve body be respectively equipped with up and down uuper valve chamber and lower valve chamber, both sides are respectively equipped with import and outlet, described bonnet and bottom flange are located at respectively described uuper valve chamber end face and lower valve chamber bottom surface, this equilibrium valve also comprises upper valve rod, flap on piston type, telescopic step valve seat, piston type lower Disc, lower valve rod, driven plunger, balance spring and conduit, described bonnet bottom surface is provided with opening cylindrical shell and stretches into the uuper valve chamber of described valve body, on described piston type, flap end face is provided with equalizing orifice and is positioned at the opening cylindrical shell of described bonnet, described upper valve rod penetrates described bonnet and bottom connects flap end face on described piston type, described telescopic step valve seat is located in the lower valve chamber of described valve body, described piston type lower Disc and driven plunger interval are located in described telescopic step valve seat, described lower valve rod connects described piston type lower Disc and driven plunger, described upper valve rod and described lower valve rod coaxially arrange, described balance spring is located at the interior also two ends of described telescopic step valve seat respectively against described driven plunger end face and telescopic step valve seat step surface, described piston type lower Disc end face is provided with equalizing orifice, described telescopic step valve seat top is along the circumferential direction provided with some special-shaped windows, on described piston type, between flap lower end surface and telescopic step valve seat upper-end surface, form the uuper valve chamber of airtight described valve body and the sealing pair of lower valve chamber, described conduit is located at described valve body outward and is communicated with the import of described valve body and the cavity of resorption of driven plunger.
Further, on above-mentioned piston type, the lower end surface of flap and telescopic step valve seat upper-end surface are the conical surfaces cooperatively interacting.
Further, between above-mentioned upper valve rod and bonnet, between bonnet and valve body, between bottom flange and valve body, between telescopic step valve seat and valve body, between driven plunger and telescopic step valve seat, be respectively equipped with O-ring seals.
Because the utility model plunger-type balance valve has adopted technique scheme, the valve body both sides that are this equilibrium valve are import and outlet, sealing with bonnet and bottom flange respectively up and down of valve body, in valve pocket, be provided with a plurality of piston elements, upper valve rod is connected with flap on piston type in bonnet opening cylindrical shell through bonnet, telescopic step valve seat is located at valve body lower portion, and seal with bottom flange, in telescopic step valve seat, piston type lower Disc and driven plunger are housed, between piston type lower Disc and driven plunger, with lower valve rod, be connected, on piston type, under valve and piston type, valve is respectively equipped with equalizing orifice, telescopic step valve seat top is provided with some special-shaped windows, between the cavity of resorption of driven plunger and valve body import, there is conduit to be communicated with, the epicoele of driven plunger is provided with balance spring.This equilibrium valve has overcome the defect of pipe valve in traditional air-conditioning HVAC system, realize the effect of static balancing valve and dynamic balance valve simultaneously, the convenient flow that regulates pipeline medium, automatically the interference between each arm in elimination system, eliminate hydraulic misadjustment, system is operated steadily, and room temperature precise control, significantly reduces energy consumption.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model plunger-type balance valve.
Embodiment
As shown in Figure 1, the utility model plunger-type balance valve comprises valve body 1, bonnet 2 and bottom flange 3, described valve body 1 be respectively equipped with up and down uuper valve chamber 13 and lower valve chamber 14, both sides are respectively equipped with import 11 and outlet 12, described bonnet 2 and bottom flange 3 are located at respectively described uuper valve chamber 13 end faces and lower valve chamber 14 bottom surfaces, this equilibrium valve also comprises upper valve rod 4, on piston type, flap 5, telescopic step valve seat 6, piston type lower Disc 8, lower valve rod 7, driven plunger 10, balance spring 9 and conduit 15, described bonnet 2 bottom surfaces are provided with opening cylindrical shell 21 and stretch into the uuper valve chamber 13 of described valve body 1, on described piston type, flap 5 end faces are provided with equalizing orifice 51 and are positioned at the opening cylindrical shell 21 of described bonnet 2, described upper valve rod 4 penetrates described bonnet 2 and bottom connects flap 5 end faces on described piston type, described telescopic step valve seat 6 is located in the lower valve chamber 14 of described valve body 1, described piston type lower Disc 8 and driven plunger 10 intervals are located in described telescopic step valve seat 6, described lower valve rod 7 connects described piston type lower Disc 8 and driven plunger 10, described upper valve rod and described lower valve rod coaxially arrange, described balance spring 9 be located in described telescopic step valve seat 6 and two ends respectively against the step surface of described driven plunger 10 end faces and telescopic step valve seat 6, described piston type lower Disc 8 end faces are provided with equalizing orifice 81, described telescopic step valve seat 6 tops are along the circumferential direction provided with some special-shaped windows 61, on described piston type, between flap 5 lower end surfaces and telescopic step valve seat 6 upper-end surfaces, form the uuper valve chamber 13 of airtight described valve body 1 and the sealing pair of lower valve chamber 14, described conduit 15 is located at outside described valve body 1 and is communicated with the import 11 of described valve body 1 and the cavity of resorption of driven plunger 10.
Further, on above-mentioned piston type, the lower end surface of flap 5 and telescopic step valve seat 6 upper-end surfaces are the conical surfaces that cooperatively interact.Conical surface sealing reliability, the abrasion-resistance that has improved valve body uuper valve chamber and lower valve chamber be set, extended valve working life, sealing pair is simple in structure, and facilitates machining, cuts down finished cost.
Further, between above-mentioned upper valve rod 4 and bonnet 2, be provided with O-ring seals 27, between bonnet 2 and valve body 1, be provided with O-ring seals 22, on piston type, between flap 5 and the opening cylindrical shell 21 of bonnet 2, be provided with O-ring seals 23, between bottom flange 3 and valve body 1, be provided with O-ring seals 26, between the top and bottom of telescopic step valve seat 6 and valve body 1, be respectively equipped with O-ring seals 24,28, between driven plunger 10 and telescopic step valve seat 6, be provided with O-ring seals 25.
In this plunger-type balance valve, pipeline medium is by valve body 1 import 11 flap 5 on piston type of flowing through, telescopic step valve seat 6, special-shaped window 61 on telescopic step valve seat 6, after piston type lower Disc 8, by valve body 1 outlet 12, flowed out, the aperture that upper valve rod 4 connection valve door drives 16 change flap 5 on piston type is carried out the rate-of flow of regulating valve, valve actuator 16 is manual or electronicly all can, by driven plunger 10, experience the pressure surge of valve body 1 import 11, promote piston type lower Disc 8 and move up and down to eliminate the changes in flow rate that pressure medium variation brings, thereby reach the hydraulically balanced object of valve place bye-pass.
On the piston type of this plunger-type balance valve, flap is driven and is done straight reciprocating motion by valve actuator, on piston type, flap forms sealing pair after contacting with telescopic step valve seat, for setting the rate-of flow with control valve, this flow value can be design setting value, also can set according to user's request.Because upper flap adopts piston cylinder operator upper-end surface, offer equalizing orifice, can make this equilibrium valve under large pressure reduction, only need less steering force can realize switch, compare with common board-like flap, the required active force of valve actuator reduces 60%.
The piston type lower Disc of this plunger-type balance valve is driven and is done straight reciprocating motion by driven plunger, its power comes from the poor of valve inlet pressure P 1 and valve seat outlet pressure P2 and balance spring, and the pressure of P1 and P2 passes to driven plunger two ends by the equalizing orifice of conduit and piston type lower Disc respectively; The to-and-fro motion of piston type lower Disc changes the circulation area of some special-shaped windows on telescopic step valve seat top, thereby changes rate-of flow.When P1 increases, MEDIA FLOW quantitative change is large, and piston type lower Disc moves upward, and turns down some special-shaped window circulation areas, reduces rate-of flow, when rate-of flow is returned to original value, and the stop motion of piston type lower Disc.On the contrary, when P1 reduces, flow diminishes, and piston type lower Disc moves downward, and increases some special-shaped window circulation areas, and rate-of flow increases, while returning to setting value, and the stop motion of piston type lower Disc.So make rate-of flow remain on the flow value that on piston type, flap sets, played the effect of dynamic stability flow.Use this equilibrium valve, the impact that the flow in its pipeline downstream is not changed by other branch road pressure flows can, in each arm or device end place use this equilibrium valve can realize the hydraulic equilibrium of whole system.
Because this equilibrium valve adopts driven plunger as sense cell and Double-clack, compared with conventional balanced valve, flap is quick on the draw, and degree of regulation is high, temperature precise control, valve long service life can realize two kinds of functions of static balancing valve and dynamic balance valve simultaneously, simultaneously capable of choosing multiple valve driving mode, be convenient to Digital Control, volume is little, cost-saving, and energy-saving effect is obvious.
The valve group that in this plunger-type balance valve, on piston type, flap and telescopic step valve seat form is equivalent to static balancing valve, plays and regulates the effect of setting flow, can realize automation and control; And upper flap adopts the piston cylinder operator that has equalizing orifice, overcome normal static equilibrium valve can not be under large pressure reduction the defect of switch, reduced the on-off action power of valve.Have the valve group that the piston type lower Disc of equalizing orifice and telescopic step valve seat, driven plunger form and be equivalent to dynamic balance valve, piston type lower Disc connects driven plunger, the cavity of resorption of driven plunger is communicated with by conduit with valve body import, the pressure reduction of valve body import and driven plunger bottom valve pocket provides Driving force for driven plunger, drive piston type lower Disc to move up and down, the some special-shaped window that piston type lower Disc moves up and down and covers or open telescopic step valve seat top, change the circulation area of medium, thereby regulate rate-of flow.
After on piston type, flap aperture sets, if valve body inlet and outlet pressure is constant, valve flow remains unchanged, if valve inlet pressure raises, as other branch roads are closed, valve pressure reduction (P1-P2) will increase, and rate-of flow will increase, the masterpiece of the P1-P2 increasing is for driven plunger lower end surface, driven plunger and piston type lower Disc are moved upward, and special-shaped window area diminishes, and flow reduces, make flow return to the flow before inlet pressure raises, thereby maintain constant flow; The difference of P1-P2 and spring force is depended in the motion of driven plunger, and when their balances, driven plunger and piston type lower Disc stop mobile.
This plunger-type balance valve rolls into one the function of static balancing valve and dynamic balance valve, has significantly reduced cost, and it is little, easy for installation to take up room; Can realize digital automatic control, flow set is simple and can automatically regulate, simultaneously can be under large pressure reduction adjust flux, transient equiliblium degree of regulation is high.This plunger-type balance valve can be mainly used in requirement in cooling (heat) system and keep the constant pipeline of flow, the end-equipment pipeline place of as freezing in handpiece Water Chilling Units, cooling water pipes at different levels and cooling (heat) amount, be particularly suitable for the high occasion of temperature setting precision requirement, as hospital, electronics factory building etc.
Claims (3)
1. a plunger-type balance valve, comprise valve body, bonnet and bottom flange, described valve body be respectively equipped with up and down uuper valve chamber and lower valve chamber, both sides are respectively equipped with import and outlet, described bonnet and bottom flange are located at respectively described uuper valve chamber end face and lower valve chamber bottom surface, it is characterized in that: this equilibrium valve also comprises upper valve rod, flap on piston type, telescopic step valve seat, piston type lower Disc, lower valve rod, driven plunger, balance spring and conduit, described bonnet bottom surface is provided with opening cylindrical shell and stretches into the uuper valve chamber of described valve body, on described piston type, flap end face is provided with equalizing orifice and is positioned at the opening cylindrical shell of described bonnet, described upper valve rod penetrates described bonnet and bottom connects flap end face on described piston type, described telescopic step valve seat is located in the lower valve chamber of described valve body, described piston type lower Disc and driven plunger interval are located in described telescopic step valve seat, described lower valve rod connects described piston type lower Disc and driven plunger, described upper valve rod and described lower valve rod coaxially arrange, described balance spring is located at the interior also two ends of described telescopic step valve seat respectively against described driven plunger end face and telescopic step valve seat step surface, described piston type lower Disc end face is provided with equalizing orifice, described telescopic step valve seat top is along the circumferential direction provided with some special-shaped windows, on described piston type, between flap lower end surface and telescopic step valve seat upper-end surface, form the uuper valve chamber of airtight described valve body and the sealing pair of lower valve chamber, described conduit is located at described valve body outward and is communicated with the import of described valve body and the cavity of resorption of driven plunger.
2. plunger-type balance valve according to claim 1, is characterized in that: on described piston type, the lower end surface of flap and telescopic step valve seat upper-end surface are the conical surfaces cooperatively interacting.
3. plunger-type balance valve according to claim 1 and 2, is characterized in that: between described upper valve rod and bonnet, between bonnet and valve body, between bottom flange and valve body, between telescopic step valve seat and valve body, be respectively equipped with O-ring seals between driven plunger and telescopic step valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805133.7U CN203718077U (en) | 2013-12-10 | 2013-12-10 | Piston type balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805133.7U CN203718077U (en) | 2013-12-10 | 2013-12-10 | Piston type balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718077U true CN203718077U (en) | 2014-07-16 |
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ID=51157228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805133.7U Expired - Fee Related CN203718077U (en) | 2013-12-10 | 2013-12-10 | Piston type balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696559A (en) * | 2013-12-10 | 2015-06-10 | 凯泰阀门(集团)有限公司 | Piston type balance valve |
-
2013
- 2013-12-10 CN CN201320805133.7U patent/CN203718077U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696559A (en) * | 2013-12-10 | 2015-06-10 | 凯泰阀门(集团)有限公司 | Piston type balance valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 |