CN2357189Y - Dynamic constant flow valve - Google Patents
Dynamic constant flow valve Download PDFInfo
- Publication number
- CN2357189Y CN2357189Y CN 99204638 CN99204638U CN2357189Y CN 2357189 Y CN2357189 Y CN 2357189Y CN 99204638 CN99204638 CN 99204638 CN 99204638 U CN99204638 U CN 99204638U CN 2357189 Y CN2357189 Y CN 2357189Y
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- valve
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 230000001276 controlling effect Effects 0.000 claims description 26
- 230000008859 change Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000009467 reduction Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a dynamic constant flow valve which can maintain constant original flow quantity under the condition of the pressure difference change of a system. The utility model is mainly composed of a valve body, a pressure guiding tube in the valve body, a self-recovery regulating device, and a setting regulating device, wherein, the self-recovery regulating device is composed of a loading spring, a diaphragm, a valve rod and a valve flap; the setting regulating device is composed of a flow quantity scale, a regulating valve rod and a regulating valve flap. The utility model is characterized in that the lower end of the valve body and the lower end of the self-recovery regulating device are provided with a balance spring and a guide seat; the diaphragm is divided into two pressure chambers up and down; the lower end of the valve body and the lower end of the regulating valve flap of the setting regulating device are provided with flow quantity openings. The utility model has the advantages of high control precision, wide adjustment range, little error, low cost and simple structure. The utility model can be used and installed at any angle, and the flow quantity remains unchanged.
Description
The utility model belongs to a kind of Equilibrator of regulating control pressure-bearing fluid flow, particularly relates to a kind ofly being the dynamic permanent-flow valve that can recover set flow under the drift angle situation of change automatically.
At present, in hot water heating and air-conditioning water route, ubiquity the problem of hydraulic misadjustment, be system when actual motion, each thermal substation of flowing through, each building building, each water yield with heat (cold) equipment is not inconsistent with the design water yield, and its result far and near end water yield distribution imbalance occurred and caused cold and hot irregular.The means of current known this phenomenon of solution are to use common stop valve, restricting orifice, manual modulation valve, software for calculation such as single throttle devices such as equilibrium valve and simulated resistance numeration, these valves and software, how accurately no matter process or calculate, fail all the time all to accomplish that flow can automatic control flow when pressure reduction changes and make it reach invariable requirement.The automatic balancing valve of domestic manufacturer's release recently preferably resolves this problem.But control accuracy lower (generally control target ± 12%), and can only level install.Not only cause the control water yield still bigger than normal, system's energy waste is serious, and because the incompatibility of installation conditions has limited its using scope greatly.
This shows that above-mentioned control valve has many defectives, and the assistant officer waits to be improved, the design people is based on abundant practical experience and professional knowledge, through constantly studying, design, and after studying sample repeatedly and improving, creates the utility model finally.
Main purpose of the present utility model is, overcomes the defective of the control valve existence of the above, and a kind of novel dynamic permanent-flow valve is provided, and making it can be to keep original constant flow constant under the drift angle situation of change.
The purpose of this utility model is realized by following technological scheme.According to the dynamic permanent-flow valve that the utility model proposes, it comprises PRESSURE PIPE in valve body, the valve body, recovers controlling device and set controlling device certainly.Mainly constitute from recovering controlling device by loading spring, diaphragm, valve rod and flap.Setting controlling device is to be made of flow scale, regulating valve stem and adjusting flap.The lower end that it is characterized in that at valve body and recover the controlling device flap certainly is provided with balance spring and guide holder, and diaphragm is separated into two up and down and presses chambers, offers the flow mouth at valve body and the adjusting flap lower end of setting controlling device.
Loading spring and balance spring that preceding described two active forces are opposite connect to form a balanced body through valve rod.
The utility model compared with prior art has tangible advantage and good effect.By above technological scheme as can be known, the utility model at valve body and the lower end of recovering the controlling device flap certainly set up balance spring and guide holder, making it is being to keep original constant flow constant under the drift angle situation of change, control accuracy and adjustment range have been improved, and can install and use arbitrarily angled, keep flow constant, error is very little.This product cost is low, and is simple in structure.
Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Fig. 1 is an overall structure sectional view of the present utility model.
Pad 5. underlays 6. copper sheathings 7. valve rods 8. flaps 9. lower covers 10. flow scales 11. are regulated valve bonnet 12. regulating valve stems 13. adjustment housings 14. and are regulated flap 15. valve bodies 16. PRESSURE PIPE 17. control chambers 18. balance springs 19. guide holders 20. flow mouths 21. flow mouths on 1. spring shields, 2. loading springs, 3. diaphragms 4. in the drawings
Dynamically the working principle of permanent-flow valve is to set controlling device and one by one to constitute from recovering controlling device, by formula Δ P=K
VsG
2As can be known: when the pressure differential deltap P that sets the controlling device two ends and the flow coefficient k of this valve
VsWhen value was steady state value, the flow G by this valve was exactly a steady state value so; Ought recover the pressure differential deltap P at controlling device two ends and the flow coefficient k at this place certainly again
VsWhen value was done the geometric ratio variation, the flow G by this place also was a steady state value so.Owing to set controlling device and recover controlling device certainly and organically combine mutual support and restriction, thereby realize the constant purpose of automatic control flow.Suppose that the pressure of supply water in the heating system has raise, the pressure reduction P at permanent-flow valve two ends
1-P
3Increase, at this moment set controlling device pressure reduction P
2-P
3Also increase, and P
2And P
3Act on the upper and lower of diaphragm respectively by PRESSURE PIPE, against the force of the spring drives from recovering to move on the controlling device flap, dwindles circulation area, increases resistance, has limited flow, up to diaphragm up and down till the balance, and P at this moment
2-P
3Get back to former definite value again, flow is also got back to original setting flow value, keep invariable, otherwise benefit is right.The utility model is owing to set up balance spring on former controlling device, it is nearly 4% that the system control accuracy of making has improved, and the control flow rate scope has increased by 12%.The work lower bound pressure of its valve is reduced to 80KPa by 200KPa, the technological core of permanent-flow valve is the ratio of the elasticity coefficient and the loading spring elasticity coefficient of balance spring, ratio is excessive, the valve resistance will increase excessive, the control flow rate upper limit is overproof excessive, precision reduces, and the work lower bound pressure of valve increases simultaneously, and the flow adjustment range is dwindled.Under the interlock effect of stem guiding seat and balance spring, valve can be installed under any angle, guarantees that simultaneously the control flow rate precision is constant.And unnecessary coefficient resistance has been avoided in the design of unique runner, increases the adjusting resistance of setting device, makes control accuracy increase by 1%.
See also shown in the accompanying drawing, the dynamic permanent-flow valve of the utility model is by recovering controlling device certainly and setting the controlling device two large divisions and form.From recovering controlling device is by the loading spring 2 that is contained in the valve body 15 inner control chambeies 17, the diaphragm 3 that last pad 4 and underlay are 5, pass flow mouth 20, be fixed on the copper sheathing 6 on the valve body, the valve rod 7 of diaphragm 3, the flap 8 that is connected with valve rod, the balance spring 18 and the guide holder 19 that are arranged on the flap lower end are formed.Spring shield 1 is stamped in loading spring 2 upper ends, and lower cover 9 is stamped in the lower end of valve body, and valve body interior diaphragm 3 has two control chambers up and down.The setting controlling device is linked in sequence by the flow scale 10 in the adjustment housings 13 that is contained on the valve body, regulating valve stem 12 and adjusting flaps 14 and forms.Flow scale upper end cap has the valve bonnet 11 of adjusting, and the lower end that is contained in the adjusting flap 14 in the valve body has flow mouth 21, is provided with a PRESSURE PIPE 16 in the centre of valve body.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (2)
1, a kind of dynamic permanent-flow valve, it comprises PRESSURE PIPE in the valve body, valve body, recovers controlling device and set controlling device certainly, mainly constitute from recovering controlling device by loading spring, diaphragm, valve rod and flap, setting controlling device is to be made of flow scale, regulating valve stem and adjusting flap, the lower end that it is characterized in that at valve body and recover the controlling device flap certainly is provided with balance spring and guide holder, diaphragm is separated into two up and down and presses the chamber, offers the flow mouth in the adjusting flap lower end of valve body and setting controlling device.
2, dynamic permanent-flow valve according to claim 1 is characterized in that loading spring and balance spring that described two active forces are opposite connect to form a balanced body through valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99204638 CN2357189Y (en) | 1999-02-11 | 1999-02-11 | Dynamic constant flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99204638 CN2357189Y (en) | 1999-02-11 | 1999-02-11 | Dynamic constant flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2357189Y true CN2357189Y (en) | 2000-01-05 |
Family
ID=33999361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99204638 Expired - Fee Related CN2357189Y (en) | 1999-02-11 | 1999-02-11 | Dynamic constant flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2357189Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865319A (en) * | 2010-03-04 | 2010-10-20 | 卓旦春 | By-pass reducing valve |
| CN101088057B (en) * | 2004-11-09 | 2010-12-08 | 印第安纳马斯科公司 | Device for dynamic control of a water flow |
| CN102489045A (en) * | 2011-12-02 | 2012-06-13 | 西安交通大学 | Gas-liquid two-phase self-adaption constant flow distributor |
| WO2022143934A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳市恒致云科技有限公司 | Constant flow valve |
-
1999
- 1999-02-11 CN CN 99204638 patent/CN2357189Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101088057B (en) * | 2004-11-09 | 2010-12-08 | 印第安纳马斯科公司 | Device for dynamic control of a water flow |
| CN101865319A (en) * | 2010-03-04 | 2010-10-20 | 卓旦春 | By-pass reducing valve |
| CN102489045A (en) * | 2011-12-02 | 2012-06-13 | 西安交通大学 | Gas-liquid two-phase self-adaption constant flow distributor |
| CN102489045B (en) * | 2011-12-02 | 2013-10-16 | 西安交通大学 | Gas-liquid two-phase self-adaption constant flow distributor |
| WO2022143934A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳市恒致云科技有限公司 | Constant flow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |