CN108953640A - Current stabilization motor-driven valve - Google Patents
Current stabilization motor-driven valve Download PDFInfo
- Publication number
- CN108953640A CN108953640A CN201811192768.8A CN201811192768A CN108953640A CN 108953640 A CN108953640 A CN 108953640A CN 201811192768 A CN201811192768 A CN 201811192768A CN 108953640 A CN108953640 A CN 108953640A
- Authority
- CN
- China
- Prior art keywords
- flap
- resistance
- pressure
- guiding loop
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
- F16K1/526—Means for additional adjustment of the rate of flow for limiting the maximum flow rate, using a second valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
A kind of current stabilization motor-driven valve, it includes valve body (1), body cavity is divided into intake antrum and water chamber in valve intracorporal partition, valve seat (3) are provided on partition, the first flap (4) are equipped in the top of valve seat, magnetic guiding loop (9) and magnet exciting coil (10) are fixedly connected in the bottom surface of valve seat, the second flap (11) are equipped in the lower section of magnetic guiding loop, second flap lower part is ordinatedly inserted in the canister portion (13) on bottom cover (12), second flap is equipped with drainage tube and leads to intake antrum and canister portion, pressure sensor (17) are installed in water chamber, pressure signal is sent to controller input terminal, controller output end is connect with magnet exciting coil, pressure signal is compared with a setting value in the controller, when pressure signal is greater than the set value, exciting current increases, second flap is mobile towards magnetic guiding loop, when pressure is believed Exciting current reduces when number being less than setting value, and the second flap is mobile backwards to magnetic guiding loop under the action of Fluid pressure, to realize stability of flow.
Description
Technical field
The present invention relates to a kind of current stabilization motor-driven valves, the current stabilization for pipeline fluid.
Background technique
It can cause the changes in flow rate of fluid in pipeline in pipeline source when pressure change, for the stabilization for making flow, in pipeline
Middle setting dynamic equilibrium current stabilization motor-driven valve.CN205315796U patent discloses one kind, and " dynamic differential pressure balanced current stabilization is electronic
Valve ", are as follows: partition is equipped in valve body, body cavity is divided into intake antrum and water chamber, is provided with valve port on partition by partition,
It is equipped with flap in the top of valve port, is equipped with dynamic equilibrium spool in the lower section of valve port, flap is used to set flow, in operational process
The position of middle flap is constant, and dynamic equilibrium spool is connect with a bellows, and bellows is connected by the water inlet of an aqueduct and valve；
When the pressure of valve water inlet increases, flow also increases, and at this moment bellows is heaved, and dynamic equilibrium spool is close to valve port, so that valve
The pressure difference at mouth both ends remains unchanged, and vice versa, to realize being basically unchanged for flow；However the pressure change of valve water inlet
When, what the pressure difference at valve port both ends still changed, i.e., when the pressure of valve water inlet increases, the pressure difference at valve port both ends
There is smaller increase, steady flow result is undesirable.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of current stabilization motor-driven valve, the current stabilization motor-driven valve, can automatic regulating valve
The pressure of door water chamber makes it keep stablizing, so that the flow by valve is constant.
The technical scheme is that a kind of current stabilization motor-driven valve comprising valve body 1 is equipped with partition 2, partition in valve body
Body cavity is divided into intake antrum and water chamber, valve seat 3 is provided on partition, the first flap 4 is equipped in the top of valve seat, steady
It flows in motor-driven valve operation, the gap between the first flap and valve seat does not change, characterized in that in the fixed company in the bottom surface of valve seat
It is connected to magnetic guiding loop 9, the bottom surface of magnetic guiding loop is equipped with a recess portion, magnet exciting coil 10 is equipped in the recess portion of magnetic guiding loop, in magnetic guiding loop
Lower section is equipped with the second flap 11 made of permeability magnetic material, and the second flap lower part is ordinatedly inserted in the canister portion 13 on bottom cover 12,
Bottom cover is sealedly connected on the lower part of valve body；Pressure sensor 17, the pressure of pressure sensor detection are installed at water chamber position
Signal is sent to the input terminal of controller, and the output end of controller is connect with magnet exciting coil, and pressure signal is set with one in the controller
Definite value is compared, and the exciting current that controller exports when pressure signal is greater than the set value increases, and the second flap is towards magnetic conduction
Ring is mobile, and when pressure signal is less than setting value, the exciting current of controller output reduces, work of second flap in Fluid pressure
Mobile to magnetic guiding loop with lower back, when pressure signal is equal to setting value, the exciting current of controller output keeps the second flap static
To realize stability of flow.
It is a feature of the present invention that being fixedly connected with magnetic guiding loop in the bottom surface of valve seat, excitation wire is equipped in the recess portion of magnetic guiding loop
Circle, magnet exciting coil under the control of the controller produced by electromagnetic force with water chamber change in pressure, when the pressure of water chamber
Magnet exciting coil generates electromagnetic force and increases when power increases, and keeps the second flap mobile towards magnetic guiding loop, when the pressure of water chamber reduces
Magnet exciting coil generates electromagnetic force and reduces, and acts on lower back to magnetic guiding loop movement, to realize stability of flow in Fluid pressure.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the circuit diagram of controller.
Dotted line is the magnetic line radial line of magnet exciting coil in Fig. 3.
Attached drawing mark respectively indicates: 1- valve body, 2- partition, 3- valve seat, the first flap of 4-, 5- valve rod, 6- valve deck, 7- valve rod
Seat, 8- runner, 9- magnetic guiding loop, 10- magnet exciting coil, the second flap of 11-, 12- bottom cover, 13- canister portion, 14- rubber bag tank, 15- drainage
Pipe, 16- magnet exciting coil lead, 17- pressure turn sensor.
Specific embodiment
Now in conjunction with Detailed description of the invention a specific embodiment of the invention.
A kind of current stabilization motor-driven valve comprising valve body 1 is equipped with partition 2 in valve body, and body cavity is divided into intake antrum by partition
And water chamber, valve seat 3 is provided on partition, is equipped with the first flap 4 in the top of valve seat, the first flap is fixedly connected with valve rod 5,
It is stretched out from valve deck 6 to valve stem seal, the top of valve deck is valve rod base 7, and the threaded portion of valve rod is spun in valve rod base, in valve rod
Top is equipped with runner 8, and the gap between the first flap and valve seat is adjusted in rotating wheel, in the operation of current stabilization motor-driven valve, is not necessarily to
The gap between the first flap and valve seat is adjusted, i.e. gap between the first flap and valve seat does not change.
It is fixedly connected with magnetic guiding loop 9 in the bottom surface of valve seat, magnetic guiding loop is made of permeability magnetic material, and the bottom surface of magnetic guiding loop is equipped with one
Recess portion, is equipped with magnet exciting coil 10 in the recess portion of magnetic guiding loop, and magnet exciting coil is sealed in the recess portion of magnetic guiding loop by epoxy resin cure
In, the lead 16 of magnet exciting coil is sealed from the wall of valve body and is pierced by, the lower section of magnetic guiding loop be equipped with by permeability magnetic material (mild steel,
Cast iron) made of the second flap 11, the second flap lower part is inserted in the canister portion 13 of bottom cover 12, and bottom cover is sealedly connected under valve body
Portion；When magnet exciting coil passes to exciting current, the generation magnetic line of force (shown in the dotted line of Fig. 3) in magnetic guiding loop, the magnetic line of force passes through the second valve
Second flap is drawn to magnetic guiding loop by valve, and the attractive magnetic force of the bigger generation of exciting current is bigger.
The second flap is driven using electromagnetic force, so that the adjusting of the pressure in water chamber has higher without hysteresis
Sensitivity；The second flap is driven using electromagnetic force, keeps the driving structure of the second flap simple, and high mechanical strength is not easy to send out
Raw failure good reliability.
Pressure sensor 17 is sealed and installed on the wall body of water chamber, pressure sensor detects the pressure in water chamber,
Pressure signal is sent to the input terminal of controller, and the output end of controller is connect with magnet exciting coil, in the controller pressure signal with
One setting value is compared, and the exciting current that controller exports when pressure signal is greater than the set value increases, the second flap direction
Magnetic guiding loop is mobile, and when pressure signal is less than setting value, the exciting current of controller output reduces, and the second flap is in Fluid pressure
Under the action of it is mobile backwards to magnetic guiding loop, maintain the pressure of water chamber in setting value.
The controller can be made of amplifier, A/D converter, single-chip microcontroller, D/A converter, power amplifier, pressure
Turning the pressure signal in sensor detection water chamber, pressure signal amplifies through amplifier, then send through A/D converter to single-chip microcontroller,
Pressure signal is compared with a setting value in single-chip microcontroller, and comparison result is sent through D/A converter to power amplifier, power amplification
Device drives magnet exciting coil；Controller is run according to the program in single-chip microcontroller.
For the cost of manufacture for reducing controller, interference free performance is improved, the controller is such structure, controller
Including amplifying circuit, comparison circuit, power amplification circuit；
The amplifying circuit is made of operational amplifier A1, resistance R1, resistance R2, and the inverting input terminal of operational amplifier A1 is logical
Resistance R1 ground connection is crossed, resistance R2 is connected between the inverting input terminal and output end of operational amplifier A1, operational amplifier A1's is same
Mutually input termination pressure turns the output end of sensor；
The comparison circuit includes comparator A2, resistance R3, potentiometer W1, voltage-stabiliser tube V1, the non-inverting input terminal of comparator A2
The output end of operational amplifier A1, a termination D.C. regulated power supply VDD1 of resistance R3 are connect, the other end of resistance R3 passes through current potential
Device W1 ground connection, the slide arm of potentiometer W1 connect the inverting input terminal of comparator A2, the cathode of another termination voltage-stabiliser tube V1 of resistance R3,
The plus earth of voltage-stabiliser tube V1；
The power amplification circuit includes diode D1, capacitor C1, resistance R4, resistance R5, triode T1, the sun of diode D1
Pole connects the output end of comparator A2, and the cathode of diode D1 connects the base stage of triode T1, triode by concatenated resistance R4, R5
The emitter of T1 is grounded, and the collector of triode T1 meets field power supply VDD2 by magnet exciting coil, between resistance R4 and resistance R5
Tie point be grounded by capacitor C1.
D.C. regulated power supply VDD1 is pressure sensor, operational amplifier, comparator provide working power, field power supply
VDD2 provides working power for magnet exciting coil.
The amplifying circuit amplifies pressure signal, send to comparison circuit with setting value compared with, setting value by
Potentiometer W1 is set, and when pressure signal is greater than the set value, comparator exports high level, by power amplification circuit
Diode D1 and resistance R4 charge to capacitor C1, and the base voltage of triode T1 increases, the collector current of triode T1
Increase (electric current increases i.e. in magnet exciting coil)；When pressure signal is less than setting value, comparator exports low level, and capacitor C1 passes through
The base voltage of resistance R5 electric discharge, triode T1 reduces, and (electric current drops i.e. in magnet exciting coil for the collector current reduction of triode T1
It is low)；Maintain exciting current on suitable point.
For the consumption for reducing exciting current, drainage tube 15 is hermetically equipped on the second flap, the upper end of drainage tube is located at
In valve seat, in the cavity that the lower end of drainage tube is located at the second flap and canister portion 13 is surrounded, drainage tube introduces the water of intake antrum
In the cavity, the outer circle of the second flap is matched with the inner circle of canister portion；When the pressure of intake antrum increases, the pressure of cavity also increases
Greatly, to the power pushed up on the second flap one, the electromagnetic force that can reduce magnetic guiding loop the second flap of actuation so reduces exciting current.
As an improvement being equipped with rubber bag tank 14 in canister portion 13, rubber bag tank is connect with the bottom surface of the second flap 11, is drained
Pipe 15 is sealingly disposed on rubber bag tank and introduces the water of intake antrum in rubber bag tank；When the pressure of intake antrum increases, rubber bag tank
In pressure also increase with it, rubber bag tank expansion jack up the second flap, can reduce in this way magnetic guiding loop be attracted the second flap electromagnetism
Power reduces exciting current.
The position for first adjusting the first flap when in use provides a flow appropriate, arrow is oriented to water flow in Fig. 1
Direction, when the pressure oscillation of intake antrum, the pressure of water chamber also changes therewith, when the pressure signal of water chamber is greater than the set value
When power amplifier output exciting current increase, the electromagnetic force that is formed on magnetic guiding loop increases, and makes the second flap towards magnetic conduction
Ring is mobile, makes the pressure reduction in water chamber；When pressure signal is less than setting value, the exciting current of power amplifier output subtracts
Small, under the action of Fluid pressure, the second flap is mobile backwards to magnetic guiding loop, increases the pressure in water chamber；To make to be discharged
Pressure in chamber is equal with setting value, and the pressure in water chamber is stablized, and flow is just stable.
Claims (4)
1. a kind of current stabilization motor-driven valve comprising valve body (1) is equipped with partition (2) in valve body, and body cavity is divided into water by partition
Chamber and water chamber are provided with valve seat (3) on partition, are equipped with the first flap (4) in the top of valve seat, run in current stabilization motor-driven valve
In, the gap between the first flap and valve seat does not change, characterized in that is fixedly connected with magnetic guiding loop in the bottom surface of valve seat
(9), the bottom surface of magnetic guiding loop is equipped with a recess portion, is equipped with magnet exciting coil (10) in the recess portion of magnetic guiding loop, sets below magnetic guiding loop
Having the second flap made of permeability magnetic material (11), the second flap lower part is ordinatedly inserted in the canister portion (13) on bottom cover (12),
Bottom cover is sealedly connected on the lower part of valve body；It is equipped with pressure sensor (17) at water chamber position, the pressure of pressure sensor detection
Force signal is sent to the input terminal of controller, and the output end of controller is connect with magnet exciting coil, in the controller pressure signal and one
Setting value is compared, and the exciting current that controller exports when pressure signal is greater than the set value increases, and the second flap direction is led
Magnet ring is mobile, and when pressure signal is less than setting value, the exciting current of controller output reduces, and the second flap is in Fluid pressure
Lower back is acted on to magnetic guiding loop movement, the exciting current of controller output keeps the second flap quiet when pressure signal is equal to setting value
Only, to realize stability of flow.
2. current stabilization motor-driven valve according to claim 1, characterized in that the controller includes that amplifying circuit, comparison are electric
Road, power amplification circuit；
The amplifying circuit is made of operational amplifier A1, resistance R1, resistance R2, and the inverting input terminal of operational amplifier A1 is logical
Resistance R1 ground connection is crossed, resistance R2 is connected between the inverting input terminal and output end of operational amplifier A1, operational amplifier A1's is same
Mutually input termination pressure turns the output end of sensor；
The comparison circuit includes comparator A2, resistance R3, potentiometer W1, voltage-stabiliser tube V1, the non-inverting input terminal of comparator A2
The output end of operational amplifier A1, a termination D.C. regulated power supply VDD1 of resistance R3 are connect, the other end of resistance R3 passes through current potential
Device W1 ground connection, the slide arm of potentiometer W1 connect the inverting input terminal of comparator A2, the cathode of another termination voltage-stabiliser tube V1 of resistance R3,
The plus earth of voltage-stabiliser tube V1；
The power amplification circuit includes diode D1, capacitor C1, resistance R4, resistance R5, triode T1, the sun of diode D1
Pole connects the output end of comparator A2, and the cathode of diode D1 connects the base stage of triode T1, triode by concatenated resistance R4, R5
The emitter of T1 is grounded, and the collector of triode T1 meets field power supply VDD2 by magnet exciting coil, between resistance R4 and resistance R5
Tie point be grounded by capacitor C1.
3. current stabilization motor-driven valve according to claim 2, characterized in that be hermetically equipped with drainage tube on the second flap (11)
(15), the upper end of drainage tube is located in valve seat, in the cavity that the lower end of drainage tube is located at the second flap and canister portion (13) are surrounded,
Drainage tube introduces the water of intake antrum in the cavity.
4. current stabilization motor-driven valve according to claim 3, characterized in that be equipped with rubber bag tank (14) in canister portion (13), rubber
Capsule is connect with the bottom surface of the second flap (11), and the lower end of drainage tube (15) is sealingly disposed on rubber bag tank, by the water of intake antrum
It introduces in rubber bag tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811192768.8A CN108953640A (en) | 2018-10-13 | 2018-10-13 | Current stabilization motor-driven valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811192768.8A CN108953640A (en) | 2018-10-13 | 2018-10-13 | Current stabilization motor-driven valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108953640A true CN108953640A (en) | 2018-12-07 |
Family
ID=64480911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811192768.8A Withdrawn CN108953640A (en) | 2018-10-13 | 2018-10-13 | Current stabilization motor-driven valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953640A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848400A (en) * | 2019-11-19 | 2020-02-28 | 苏州奥奈斯传感科技有限公司 | Constant pressure throttle valve |
-
2018
- 2018-10-13 CN CN201811192768.8A patent/CN108953640A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848400A (en) * | 2019-11-19 | 2020-02-28 | 苏州奥奈斯传感科技有限公司 | Constant pressure throttle valve |
| CN110848400B (en) * | 2019-11-19 | 2021-09-07 | 苏州奥奈斯传感科技有限公司 | Constant pressure throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181207 |
|
| WW01 | Invention patent application withdrawn after publication |