CN208804252U - Electric control valve - Google Patents
Electric control valve Download PDFInfo
- Publication number
- CN208804252U CN208804252U CN201821659735.5U CN201821659735U CN208804252U CN 208804252 U CN208804252 U CN 208804252U CN 201821659735 U CN201821659735 U CN 201821659735U CN 208804252 U CN208804252 U CN 208804252U
- Authority
- CN
- China
- Prior art keywords
- guiding loop
- flap
- magnetic guiding
- controller
- 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.)
- Expired - Fee Related
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- Magnetically Actuated Valves (AREA)
Abstract
A kind of electric control valve, it includes valve body, partition is equipped in valve body, body cavity is divided into intake antrum and water chamber by partition, valve seat is provided on partition, the first flap is equipped in the top of valve seat, magnetic guiding loop is fixedly connected in the bottom surface of valve seat, the bottom surface of magnetic guiding loop is equipped with a recess portion, magnet exciting coil is equipped in the recess portion of magnetic guiding loop, the second flap made of permeability magnetic material is equipped in the lower section of magnetic guiding loop, pressure sensor is installed at water chamber position, the pressure signal of pressure sensor detection is sent to the input terminal of controller, the output end of controller is connect with magnet exciting coil, pressure signal is compared with an a reference value in the controller, when pressure signal is greater than a reference value, the exciting current of controller output increases, when pressure signal is less than a reference value, the exciting current of controller output reduces, pass through electromagnetic force automatic adjustment second Realize the stabilization of flow in gap between flap and magnetic guiding loop.
Description
Technical field
The present invention relates to a kind of electric control 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 balance electric regulating valve.CN205315796U patent discloses a kind of " dynamic differential pressure balanced motorized adjustment
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.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of electric control valve, the electric control 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 electric control 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, in electricity
In dynamic regulating 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 fixedly connected with guide rod 12, and guide rod is inserted in
In the blind hole of bottom cover 13, bottom cover is sealedly connected on the lower part of valve body；Pressure sensor 15 is installed at water chamber position, pressure passes
The pressure signal of sensor detection 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 is compared with an a reference value, and when pressure signal is greater than a reference value, the exciting current of controller output increases, the
Two flaps are mobile towards magnetic guiding loop, and when pressure signal is less than a reference value, the exciting current of controller output reduces, the second flap
It is mobile backwards to magnetic guiding loop under the action of Fluid pressure.
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 functional-block 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- guide rod, 13- bottom cover, 14- magnet exciting coil lead,
15- pressure sensor.
Specific embodiment
Now in conjunction with Detailed description of the invention a specific embodiment of the invention.
A kind of electric control 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 electric control valve operation, 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 14 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 fixedly connected with guide rod 12, and guide rod is inserted in the blind hole of bottom cover 13
In, bottom cover is sealedly connected on the lower part of valve body.When magnet exciting coil passes to exciting current, the magnetic line of force (void of Fig. 3 is generated in magnetic guiding loop
Shown in line), the second flap is drawn to magnetic guiding loop, the attractive magnetic force of the bigger generation of exciting current by the second flap by the magnetic line of force
It is bigger.
Pressure sensor 15 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 a reference value is compared, and when pressure signal is greater than a reference value, the exciting current of controller output increases, the second flap direction
Magnetic guiding loop is mobile, and when pressure signal is less than a reference 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 a reference value, to realize stability of flow.
The controller includes amplifier, reference value circuit, comparator, power amplifier, and amplifier is to pressure
Sensor detect water chamber in pressure signal carry out signal amplification, through the amplified pressure signal of amplifier send to comparator with
One a reference value is compared, and a reference value is generated by reference value circuit, the comparison result signal of output through power amplifier into
The output end of row power amplification, power amplifier is connect with magnet exciting coil, provides exciting current to magnet exciting coil.
The position for first adjusting the first flap when in use provides a flow appropriate, when the pressure oscillation of intake antrum,
The pressure of water chamber also changes therewith, the exciting current of power amplifier output when the pressure signal of water chamber is greater than a reference value
Increase, the electromagnetic force formed on magnetic guiding loop increases, and keeps the second flap mobile towards magnetic guiding loop, makes the pressure drop in water chamber
It is low；When pressure signal is less than a reference value, the exciting current of power amplifier output reduces, under the action of Fluid pressure, second
Flap is mobile backwards to magnetic guiding loop, increases the pressure in water chamber；To keep the pressure in water chamber equal with a reference value, it is discharged
Pressure in chamber is stablized, and flow is just stable.
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.
Claims (1)
1. a kind of electric control 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 electric control 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
Have the second flap made of permeability magnetic material (11), the second flap lower part is fixedly connected with guide rod (12), and guide rod is inserted in bottom
It covers in the blind hole of (13), bottom cover is sealedly connected on the lower part of valve body；Pressure sensor (15), pressure are installed at water chamber position
The pressure signal of sensor detection is sent to the input terminal of controller, and the output end of controller is connect with magnet exciting coil, in controller
Middle pressure signal is compared with an a reference value, and when pressure signal is greater than a reference value, the exciting current of controller output increases,
When pressure signal is less than a reference value, the exciting current of controller output reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821659735.5U CN208804252U (en) | 2018-10-13 | 2018-10-13 | Electric control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821659735.5U CN208804252U (en) | 2018-10-13 | 2018-10-13 | Electric control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208804252U true CN208804252U (en) | 2019-04-30 |
Family
ID=66237722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821659735.5U Expired - Fee Related CN208804252U (en) | 2018-10-13 | 2018-10-13 | Electric control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208804252U (en) |
-
2018
- 2018-10-13 CN CN201821659735.5U patent/CN208804252U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190430 Termination date: 20191013 |