CN100353097C - Proportional control valve for lifting height of nozzle - Google Patents
Proportional control valve for lifting height of nozzle Download PDFInfo
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- CN100353097C CN100353097C CNB2004100989871A CN200410098987A CN100353097C CN 100353097 C CN100353097 C CN 100353097C CN B2004100989871 A CNB2004100989871 A CN B2004100989871A CN 200410098987 A CN200410098987 A CN 200410098987A CN 100353097 C CN100353097 C CN 100353097C
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 230000008859 change Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The present invention relates to a proportion control valve for the delivery lift of a nozzle, which is connected between a water pump and a nozzle in series and is composed of two stage nonleakage valves with different diameters, wherein a valve of a guide seat valve with a minor diameter has the functions of a comparator and a function of amplifying guide hydraulic pressure; one end of the guide valve is subjected to the action of the output electromagnetic force of an electrical and mechanical converter controlled by a computer, and the other end is subjected to the action of water flow pressure at an ingress of the nozzle. When the two kinds of action lose balance, the unbalance force can overcome the reset spring force of the valve, and the flow passing area of the guide seat valve is changed. The variable throttling hole and a fixed throttling hole on a main control valve form a hydraulic half bridge. The pressure output by the half bridge exerts on the upper end of the main control valve for adjusting the opening of the main control valve and affecting output flow so as to change the current pressure at the ingress of the nozzle. The variable current pressure feeds back to the left cavity of the guide valve by a feedback path in real time. Such cycle and reciprocation are performed until the dynamic adjusting process ends, and the current pressure at the ingress of the nozzle forms a proportion with given electromagnetic control force.
Description
Technical field
Proportional control valve for lifting height of nozzle of the present invention relates to a kind of proportional control valve for lifting height of nozzle (hereinafter to be referred as proportional control valve) that can regulate the nozzle water-column in the water scenery fountain continuously that is specifically designed to.
Background technique
The water scenery fountain requires the fountain water-column can follow computer control instruction variation synchronously.At present, the known method that can regulate the nozzle water-column continuously is to adopt frequency variator that the water supply electric pump is carried out frequency control of motor speed, and the electric pump rotating speed improves, and then output flow increases, so the nozzle water column increases.Otherwise reduce the electric pump rotating speed, then output flow reduces, so the nozzle water column decreases.But upconverter foreign brand in market gets the upper hand at the moment, and the frequency variator price of reliable in quality, stable performance is quite expensive, and frequency Varying and speed changing method only allows a pump to supply with a nozzle, the cost of whole engineering thereby raising.Because electric pump rotor inertia is bigger, influenced speed of response again, can not the fast-changing requirement of fine adaptation fountain water shape.
Summary of the invention
The invention provides a kind of proportional control valve, it not only can regulate the nozzle water-column continuously according to computer order, and because of governor valve inertia less, so speed of response is than very fast.
For achieving the above object, technical solution of the present invention is:
Because fountain jet expansion water-column and nozzle entrance place water flow pressure are in direct ratio,, the continuous adjusting of desire water-column realizes so can regulating nozzle entrance place water flow pressure continuously.With the present invention--proportional control valve is serially connected with between water supply electric pump and the nozzle, and the inlet of proportional control valve is connected with the Submerged Motor Pumps outlet, and the outlet of proportional control valve links to each other with nozzle entrance.
Proportional control valve is made up of the different non-leak valve of two-stage diameter, the less guide's seat valve valve of diameter has the effect of comparator and the amplification of guide's hydraulic pressure concurrently, one end of guide's valve is subjected to computer-controlled--the output electromagnetic force effect of mechanical transducer, the other end is subjected to the water flow pressure effect at nozzle entrance place, both are as disequilibrium, then unbalanced force will overcome the Returnning spring power of valve, change guide's seat valve area of passage, fixed orifice on this variable orifice and the Main Control Valve constitutes a hydraulic pressure half-bridge, the half-bridge delivery pressure acts on the Main Control Valve upper end and regulates the Main Control Valve aperture, influence output flow to change nozzle entrance place water flow pressure, the water flow pressure that is changing feeds back to chamber, guide's valve left side in real time through feedback channel B, the nozzle entrance place water flow pressure that so moves in circles when treating that the dynamic adjustments process finishes with ratio in given Electromagnetic Control power.
Described proportional control valve, comprise valve body 8, Main Control Valve 9, fixed orifice 10, main valve spring 11, an electric mechanical transducer 1, valve gap 3, guide's valve 5, guide's shutter spring 6, damping hole 7, it is characterized in that: proportional control valve inside is made of the non-leak valve of two-stage, one master control seat valve, constitute by valve body 8 and Main Control Valve 9, one guide's seat valve, be made of valve gap 3 and guide's valve 5, the diameter of master control seat valve is greater than the diameter of guide's seat valve;
Valve body 8 is hollow articlies of both ends open, vertically is provided with, and the lower end is inlet, and upper end and valve gap 3 are affixed, and valve body 8 sides are provided with outlet; Valve body 8 inside are Main Control Valves 9, it and valve body 8 constitute the master control seat valve, be serially connected with between the outlet and inlet of valve body 8, Main Control Valve 9 is a cup-shaped, upper end open, and there is a boss at the center, lower end, one through hole is arranged on the boss central axis, through hole communicates with the room of Main Control Valve 9, and the room connecting part of through hole and Main Control Valve 9 is provided with fixed orifice 10, and main valve spring 11 is arranged in the room of Main Control Valve 9; Valve body 8, Main Control Valve 9 and boss be totally one central axis; Valve body 8 left upper portion direct-axis line directions are provided with channel B, and the channel B lower end communicates with outlet;
Valve gap 3 is hollow articlies, and its hollow reservoir is horizontally disposed with, and the diameter of right-hand member forms step less than the diameter of left end at horizontal cavity volume right part, and its right-hand member and electromechanical converter 1 are affixed; The hollow reservoir inside of valve gap 3 is guide's valve 5, guide's seat valve that step in it and valve gap 3 cavity volumes constitutes and fixed orifice 10 are formed a hydraulic pressure half-bridge, guide's valve 5 is a cylinder, left end has a cavity volume, guide's shutter spring 6 is arranged in the cavity volume, the cavity volume below is provided with damping hole 7 and communicates with channel B, and the right side of guide's valve 5 contacts with the output push rod 2 of electromechanical converter 1; On valve gap 3 horizontal cavity volume downside valve body 8 central axis, be provided with passage A, horizontal cavity volume is provided with spilled water hole 4 near the side of right-hand member, and spilled water hole 4 communicates with the external world;
Proportional control valve is serially connected with between water pump and the nozzle, and the inlet of valve body 8 communicates with water pump, and the outlet of valve body 8 links to each other with nozzle entrance.
Described proportional control valve, the non-leak valve of its described two-stage is flat valve or teper seat valve.
Described proportional control valve, its described Main Control Valve 9, guide's valve 5 are single metalwork or working of plasticss, or the assembly parts of plastics and metal.
Described proportional control valve, the girth on the valve port control limit of its described guide's valve 5 is part circumference or whole circumference.
The invention has the beneficial effects as follows, the advantage on performance, be exactly with low cost.On the one hand when rated power is identical, the price of separate unit proportional control valve is lower than the price of separate unit frequency variator, on the other hand, change after the proportional control valve pressure regulation by frequency converter timing that the configuration of water pump can not be subjected to the restriction of " pump can only be supplied with a nozzle " in the whole engineering into.A general water pump can be supplied with 12 nozzles.So the cost of whole engineering has just lowered.
Description of drawings
Fig. 1 is proportional control valve embodiment's a longitudinal section tectonic maps;
Fig. 2 is a kind of tectonic maps of guide's valve;
Fig. 3 is the nozzle lift of proportional control valve control and the proportionate relationship curve between the coil current.
Embodiment
The technical solution used in the present invention is: the water flow pressure at known nozzle outlet leg height and nozzle entrance place is in direct ratio.Deducibility in view of the above: desire to regulate continuously water-column, can realize by continuous adjusting nozzle entrance place water flow pressure.With the present invention--proportional control valve is serially connected with between water supply electric pump and the nozzle, and the inlet of proportional control valve is connected with the Submerged Motor Pumps outlet, the outlet of proportional control valve links to each other with nozzle entrance.Proportional control valve is made up of the different non-leak valve (seat valve) of two diameters, the less guide's seat valve valve of diameter has the effect of comparator and the amplification of guide's hydraulic pressure concurrently, one end of guide's valve is subjected to computer-controlled--the output electromagnetic force effect of mechanical transducer, the other end is subjected to the water flow pressure effect at nozzle entrance place, both are as disequilibrium, then unbalanced force will overcome the Returnning spring power of guide's seat valve valve, change guide's seat valve area of passage, fixed orifice on this variable orifice and the Main Control Valve constitutes a hydraulic pressure half-bridge, the delivery pressure of half-bridge acts on the upper-end surface of main valve and regulates the Main Control Valve aperture, influence output flow to change nozzle entrance place water flow pressure, the water flow pressure that is changing feeds back to chamber, guide's valve left side in real time through feedback channel, the nozzle entrance place water flow pressure that so moves in circles when treating that the dynamic adjustments process finishes with ratio in given Electromagnetic Control power.
Consider that working medium is a water in the fountain water scenery, so the non-leak valve of preferential employing: seat valve.In the embodiment shown in fig. 1, proportional control valve mainly is made of the different flat valve of two-stage diameter.Wherein: proportional control valve inside is made of the non-leak valve of two-stage, and a master control seat valve is made of valve body 8 and Main Control Valve 9, and guide's seat valve is made of valve gap 3 and guide's valve 5, and the diameter of master control seat valve is greater than the diameter of guide's seat valve;
Valve body 8 is hollow articlies of both ends open, vertically is provided with, and the lower end is inlet, and upper end and valve gap 3 are affixed, and valve body 8 sides are provided with outlet; Valve body 8 inside are Main Control Valves 9, it and valve body 8 constitute the master control seat valve, be serially connected with between the outlet and inlet of valve body 8, Main Control Valve 9 is a cup-shaped, upper end open, and there is a boss at the center, lower end, one through hole is arranged on the boss central axis, through hole communicates with the room of Main Control Valve 9, and the room connecting part of through hole and Main Control Valve 9 is provided with fixed orifice 10, and main valve spring 11 is arranged in the room of Main Control Valve 9; Valve body 8, Main Control Valve 9 and boss be totally one central axis; Valve body 8 left upper portion direct-axis line directions are provided with channel B, and the channel B lower end communicates with outlet;
Valve gap 3 is hollow articlies, and its hollow reservoir is horizontally disposed with, and the diameter of right-hand member forms step less than the diameter of left end at horizontal cavity volume right part, and its right-hand member and electromechanical converter 1 are affixed; The hollow reservoir inside of valve gap 3 is guide's valve 5, guide's seat valve that step in it and valve gap 3 cavity volumes constitutes and fixed orifice 10 are formed a hydraulic pressure half-bridge, guide's valve 5 is a cylinder, left end has a cavity volume, guide's shutter spring 6 is arranged in the cavity volume, the cavity volume below is provided with damping hole 7 and communicates with channel B, and the right side of guide's valve 5 contacts with the output push rod 2 of electromechanical converter 1; On valve gap 3 horizontal cavity volume downside valve body 8 central axis, be provided with passage A, horizontal cavity volume is provided with spilled water hole 4 near the side of right-hand member, and spilled water hole 4 communicates with the external world;
Proportional control valve is serially connected with between water pump and the nozzle, and the inlet of valve body 8 communicates with water pump, and the outlet of valve body 8 links to each other with nozzle entrance.
The less guide's valve 5 of diameter has the effect of comparator and the amplification of guide's hydraulic pressure concurrently.The right-hand member effect of guide's valve 5 be subjected to computer-controlled--the Electromagnetic Control power that mechanical transducer output push rod 2 applies, this power moves to left guide's valve and opens seat valve.The left end cavity of guide's valve 5 links to each other with nozzle entrance through outlet by damping hole 7, liquid chunnel B, the water flow pressure at nozzle entrance place promptly follow this passage feedback effect in the left side of guide's valve 5, guide's valve 5 moved to right and close seat valve.Suppose that proportional control valve is in state of equilibrium originally, suddenly guide's valve 5 of guide's seat valve is subjected to the step input action of Electromagnetic Control power, because changing, nozzle entrance place water flow pressure lags behind, be not enough to for the moment balance Electromagnetic Control power, its difference will overcome the elastic force of Returnning spring 6 to left translation guide valve 5, and the overflow section of flat valve is increased.Fig. 2 constructs for guide's valve of the non-full Zhou Kaifang of a kind of valve port that present embodiment adopts, and the valve port girth is 2W, and establishing the valve lifting capacity is X, and then flow section is long-pending is 2WX.Fixed orifice 10 on this variable orifice and the Main Control Valve 9 constitutes a hydraulic pressure half-bridge, is released by guide's flat valve by the control flow rate of half-bridge, and the spilled water hole 4 from valve gap 3 injects the pond.The half-bridge sensitive cavity communicates with master control seat valve epicoele through passage A.The variable restrictor cross section increases will make half-bridge sensitive cavity fluid pressure descend, so will losing equilibrium of forces, the valve 9 of master control seat valve promotes to increase the pressure P of output flow, raising nozzle entrance place current, the water flow pressure that is changing feeds back to guide's valve 5 left chambeies in real time through feedback channel B and damping hole 7, so move in circles, when treating that the dynamic adjustments process finishes, the water flow pressure P at nozzle entrance place with ratio in given Electromagnetic Control power:
D*P＝K*I
I--is by computer order given in the formula--and mechanical transducer control electric current, numerical value are between 0--600ma;
K--depends on--the proportionality constant of mechanical transducer structure, and the permission that can supply in the market diving uses--and mechanical transducer K value is pacified as 5kg/;
D--guide's valve left end area square centimeter;
The pressure kg/ square centimeter of P--nozzle entrance place current; Generally to obtain spraying high 6 meters water column, nozzle entrance place water flow pressure is the highest should be about the 1kg/ square centimeter.To get guide's valve diameter in view of the above in the present embodiment be 18mm, to give full play to--the potentiality of mechanical transducer.
As from external behavior, nozzle water-column and coil control current relationship curve will as shown in Figure 3, and the determining positions of curve break C is in the tight power of giving of guide's valve Returnning spring 6, if the increasing Returnning spring give tight power, C names a person for a particular job and moves to right.Otherwise then move to left.Get the C point among the embodiment at 150mA.
Claims (4)
1. proportional control valve for lifting height of nozzle, be the special use of water scenery fountain, be to regulate the proportional control valve of nozzle water-column continuously, it is characterized in that: be serially connected with between water pump and the nozzle, form by the non-leak valve that the two-stage diameter is different, the less guide's seat valve valve of diameter has the effect of comparator and the amplification of guide's hydraulic pressure concurrently, one end of guide's valve is subjected to computer-controlled--the output electromagnetic force effect of mechanical transducer, the other end is subjected to the water flow pressure effect at nozzle entrance place, both are as disequilibrium, then unbalanced force will overcome the Returnning spring power of valve, change guide's seat valve area of passage, fixed orifice on this variable orifice and the Main Control Valve constitutes a hydraulic pressure half-bridge, the half-bridge delivery pressure acts on the Main Control Valve upper end and regulates the Main Control Valve aperture, influence output flow to change nozzle entrance place water flow pressure, the water flow pressure that is changing feeds back to chamber, guide's valve left side in real time through feedback channel [B], the nozzle entrance place water flow pressure that so moves in circles when treating that the dynamic adjustments process finishes with ratio in given Electromagnetic Control power;
This proportional control valve, comprise valve body [8], Main Control Valve [9], fixed orifice [10], main valve spring [11], an electric mechanical transducer [1], valve gap [3], guide's valve [5], guide's shutter spring [6], damping hole [7], it is characterized in that: proportional control valve inside is made of the non-leak valve of two-stage, one master control seat valve, constitute by valve body [8] and Main Control Valve [9], one guide's seat valve, be made of valve gap [3] and guide's valve [5], the diameter of master control seat valve is greater than the diameter of guide's seat valve;
Valve body [8] is the hollow article of both ends open, vertically is provided with, and the lower end is inlet, and upper end and valve gap [3] are affixed, and valve body [8] side is provided with outlet; Valve body [8] inside is Main Control Valve [9], it and valve body [8] constitute the master control seat valve, be serially connected with between the outlet and inlet of valve body [8], Main Control Valve [9] is a cup-shaped, upper end open, and there is a boss at the center, lower end, one through hole is arranged on the boss central axis, through hole communicates with the room of Main Control Valve [9], and the room connecting part of through hole and Main Control Valve [9] is provided with fixed orifice [10], and main valve spring [11] is arranged in the room of Main Control Valve [9]; Valve body [8], Main Control Valve [9] and boss be totally one central axis; Valve body [8] left upper portion direct-axis line direction is provided with passage [B], and passage [B] lower end communicates with outlet;
Valve gap [3] is a hollow article, and its hollow reservoir is horizontally disposed with, and the diameter of right-hand member forms step less than the diameter of left end at horizontal cavity volume right part, and its right-hand member and an electric mechanical transducer [1] are affixed; The hollow reservoir inside of valve gap [3] is guide's valve [5], guide's seat valve that step in it and valve gap [3] cavity volume constitutes and fixed orifice [10] are formed a hydraulic pressure half-bridge, guide's valve [5] is a cylinder, left end has a cavity volume, guide's shutter spring [6] is arranged in the cavity volume, the cavity volume below is provided with damping hole [7] and communicates with passage [B], and the right side of guide's valve [5] contacts with the output push rod [2] of an electric mechanical transducer [1]; On valve gap [3] horizontal cavity volume downside valve body [8] central axis, be provided with passage [A], horizontal cavity volume is provided with spilled water hole [4] near the side of right-hand member, and spilled water hole [4] communicates with the external world;
Proportional control valve is serially connected with between water pump and the nozzle, and the inlet of valve body [8] communicates with water pump, and the outlet of valve body [8] links to each other with nozzle entrance.
2. proportional control valve according to claim 1 is characterized in that: the non-leak valve of described two-stage is flat valve or teper seat valve.
3. proportional control valve according to claim 1 is characterized in that: described Main Control Valve [9], guide's valve [5] are single metalwork or working of plasticss, or the assembly parts of plastics and metal.
4. proportional control valve according to claim 1 is characterized in that: the girth on the valve port control limit of described guide's valve [5] is part circumference or whole circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100989871A CN100353097C (en) | 2004-12-23 | 2004-12-23 | Proportional control valve for lifting height of nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100989871A CN100353097C (en) | 2004-12-23 | 2004-12-23 | Proportional control valve for lifting height of nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796833A CN1796833A (en) | 2006-07-05 |
| CN100353097C true CN100353097C (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100989871A Expired - Fee Related CN100353097C (en) | 2004-12-23 | 2004-12-23 | Proportional control valve for lifting height of nozzle |
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| Country | Link |
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| CN (1) | CN100353097C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739483A1 (en) * | 1987-11-21 | 1989-06-01 | Preussag Ag Bauwesen | Gate valve |
| CN1040420A (en) * | 1989-05-19 | 1990-03-14 | 刘长年 | Multifunctional floating pressure control valve |
| CN1065709A (en) * | 1991-04-09 | 1992-10-28 | 刘思澜 | Multi-function floating proportional pressure controlling valve |
| CN2257874Y (en) * | 1996-02-15 | 1997-07-16 | 温州市防爆电器元件厂 | Flame-proof 2-way electromagnetic valve |
| CN2357170Y (en) * | 1999-02-08 | 2000-01-05 | 浙江大学 | Electric hydraulic proportional pressure flow composite controlling valve |
-
2004
- 2004-12-23 CN CNB2004100989871A patent/CN100353097C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739483A1 (en) * | 1987-11-21 | 1989-06-01 | Preussag Ag Bauwesen | Gate valve |
| CN1040420A (en) * | 1989-05-19 | 1990-03-14 | 刘长年 | Multifunctional floating pressure control valve |
| CN1065709A (en) * | 1991-04-09 | 1992-10-28 | 刘思澜 | Multi-function floating proportional pressure controlling valve |
| CN2257874Y (en) * | 1996-02-15 | 1997-07-16 | 温州市防爆电器元件厂 | Flame-proof 2-way electromagnetic valve |
| CN2357170Y (en) * | 1999-02-08 | 2000-01-05 | 浙江大学 | Electric hydraulic proportional pressure flow composite controlling valve |
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| Publication number | Publication date |
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| CN1796833A (en) | 2006-07-05 |
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