CN206786046U - A kind of feed water valve - Google Patents
A kind of feed water valve Download PDFInfo
- Publication number
- CN206786046U CN206786046U CN201720639934.9U CN201720639934U CN206786046U CN 206786046 U CN206786046 U CN 206786046U CN 201720639934 U CN201720639934 U CN 201720639934U CN 206786046 U CN206786046 U CN 206786046U
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- valve body
- pressure sensor
- bonnet
- 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.)
- Active
Links
Landscapes
- Flow Control (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a kind of feed water valve, including valve body and bonnet, bonnet is located at top end of the valve body, and bonnet is fixedly connected with valve body, sleeve is provided with valve body, valve element is provided with sleeve, valve element passes through valve rod and motor connection, water hole is provided with the sleeve corresponding with valve element, valve inleting water end offers the first aperture, first pressure sensor is provided with the outside of valve body corresponding to first aperture, valve body water side offers second orifice, second pressure sensor is provided with the outside of valve body corresponding to second orifice, first pressure sensor and second pressure sensor electrically connect with instrument；Motor and instrument are located at outside valve body, and motor is located at the upper part of bonnet, and valve rod connects motor and valve element through bonnet.The utility model can realize that quantitative water supply or constant flow rate supply water by the control of instrument or controller, improve the versatility of valve mould；It is simple in construction, a small amount of change need to be only carried out to existing gate valve part.
Description
Technical field
The utility model belongs to water supply valve technical field, and in particular to a kind of feed water valve.
Background technology
In the popularization and application of agricultural water-saving irrigation items technology, duty control is to realize the water supply of essence amount, effective
The basis of water.If reach predetermined output, water supply is automatically stopped, can both realize the control of irrigation quantity, can improve and pour water again
The uniformity.For realizing significance is respectively provided with by pour water efficiency, lifting irrigation management level etc. of water charge and raising.Mesh
Before, China is promoting water measurement, overall control of pouring water, and it is to realize timing water and metered base that constant flow, which supplies water,
Plinth.
The industry water consumption such as field irrigation at present is difficult to smart buret reason, it is impossible to which water consumption performs according to plan completely.Enter
The quantitative water supply installation of mouth, complicated, poor reliability, expensive, the low output sector application such as inapplicable field irrigation.Pipe
Road water supply flow is relevant with pressure of supply water, and during pressure change, water supply flow also changes therewith；Water supply flow is unstable, causes phase
It is different with the water of water supply time supply；In large-scale water system, pressure divergence causes to pour water uneven.
Utility model content
The technical problems to be solved in the utility model is to overcome weak point of the prior art, there is provided a kind of feed water valve,
It can realize that quantitative water supply or constant flow rate supply water.
The purpose of this utility model is realized in the following manner：
A kind of feed water valve, including valve body and bonnet, bonnet is located at top end of the valve body, and bonnet is fixedly connected with valve body, valve body
Sleeve is inside provided with, is provided with valve element in sleeve, valve element is set on the sleeve corresponding with valve element by valve rod and motor connection
There is water hole, valve inleting water end offers the first aperture, and first pressure sensor is provided with the outside of valve body corresponding to the first aperture,
Valve body water side offers second orifice, and second pressure sensor, first pressure are provided with the outside of valve body corresponding to second orifice
Sensor and second pressure sensor electrically connect with instrument；Motor and instrument are located at outside valve body, and motor is located at bonnet
Upper part, valve rod connect motor and valve element through bonnet.
Relative to prior art, the beneficial effects of the utility model：
When constant flow rate supplies water, the utility model utilizes special structure, in valve downstream (such as valve plate back side)
1 pressure sensor is put, detects hydraulic pressure during valve；In valve downstream end (such as valve plate upstream face), built-in 1 pressure sensing
Device, perceive hydraulic pressure during into valve；Using 2 pressure sensors built in valve upstream and downstream as monitoring signal, pass through entering for perception
Valve pressure and go out valve pressure, using the water flow after 2 pressure sensor calibratings as water flow after valve；Utilize built-in 2
Individual pressure sensor difference information, feed back to the motor of control valve aperture, controlling opening of valve；Controlling opening of valve, until
When 2 built-in pressure sensor differences reach corresponding default water supply flow value, stop controlling opening of valve；If pressure change
When, above-mentioned signal acquisition and regulation process are repeated, so as to realize constant flow to supplying water after valve.The utility model strong applicability,
It is suitable for all piped water supplies using Valve controlling；Cost is low, the Universal Die when constant flow feed water valve is produced using valve
Tool can be achieved, and reduces die cost, improves the versatility of valve mould；It is simple in construction, only need to be to existing gate valve portion
Part (such as valve plate or intake-outlet) is divided to carry out a small amount of change, you can to realize that constant flow supplies water.
When quantitative water supply, the utility model uses special structure, valve upstream end (upstream face of such as valve plate) and under
End (back side of such as valve plate) respectively 1 pressure sensor of installation is swum, monitors the pressure of access valve；In special valve body structure,
It can be measured when the pressure in preceding pipeline and instantaneous water flow using 2 built-in pressure sensors；Utilize 2 built-in pressure
Sensor difference monitors water velocity, calculates water flow by pipeline area, integration obtains the water passed through this moment；On
The output for stating water and pre-selection design that integration obtains contrasts, if the two is identical, that is, sends signal, closes valve.This reality
It is low with the quantitative water feeding valve price of new offer, it is suitable for most industries such as irrigation；It is simple in construction, reliable, reduce in use
Error probability；Cost is low, and only the part (such as valve plate or intake-outlet) of existing gate valve need to be changed on a small quantity, you can real
Now determine water water supply.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of flow direction when water flows through the utility model.
Wherein, 1 is instrument；2 be motor；3 be bonnet；4 be first pressure sensor；5 be the first aperture；6 be valve body；7
It is valve rod；8 be valve element；9 be sleeve；10 be second orifice；11 be second pressure sensor；12 be water hole.
Embodiment
As shown in accompanying drawing 1-2, a kind of feed water valve, including valve body 6 and bonnet 3, bonnet 3 are located at the top of valve body 6, and bonnet 3
It is fixedly connected with valve body 6, sleeve 9 is provided with valve body 6, valve element 8 is provided with sleeve 9, valve element 8 is connected by valve rod 7 and motor 2
Connect, water hole 12 is provided with the sleeve 9 corresponding with valve element 8, the water inlet end of valve body 6 offers the first aperture 5, the first aperture 5
The corresponding outside of valve body 6 is provided with first pressure sensor 4, and the water side of valve body 6 offers second orifice 10, and second orifice 10 is right
The outside of valve body 6 answered is provided with second pressure sensor 11, and first pressure sensor 4 and second pressure sensor 11 are and instrument
1 electrical connection；Motor 2 and instrument 1 are located at outside valve body 6, and motor 2 is located at the upper part of bonnet 3, and valve rod 7 connects through bonnet 3
Motor 2 and valve element 8.
Instrument 1, equivalent to controller, can carry out the computing of numerical value, compare in the utility model, and send instruction,
Control valve folding.
The method that constant flow rate water supply is carried out using above-mentioned feed water valve, is comprised the following steps that：
1) water enters from the water inlet end of valve body 6, by water hole 12, is flowed out from the water side of valve body 6；
2) water inlet end of valve body 6 and the pressure of water side are measured using first pressure sensor 4 and second pressure sensor 11
Power；
3) first pressure sensor 4 and second pressure sensor 11 send the pressure value measured to instrument 1, the profit of instrument 1
Calculated with following formula, draw instantaneous delivery Q：
Wherein, s1, s2Pipeline section product at respectively front and rear placement force sensor；v1At first pressure sensor
Flow rate of water flow；p1, p2Water pressure at respectively front and rear pressure sensor；γ is the unit weight of water, takes 9.8kN/m3, g takes
9.8m/s2；Q is the flow measured；
4) instrument 1 feeds back the instantaneous delivery Q tried to achieve compared with instantaneous delivery set in advance, and by comparative result
To motor 2, moved up and down by motor 2 with movable valve plug 8, so as to the aperture size of control valve so that water flow keeps constant；
When the instantaneous delivery Q tried to achieve is less than instantaneous delivery set in advance, motor 2 moves upwards with movable valve plug 8, opens big valve；When
When the instantaneous delivery Q tried to achieve is more than instantaneous delivery set in advance, motor 2 moves downward with movable valve plug 8, turns down valve；
5) until the instantaneous delivery Q tried to achieve is equal to instantaneous delivery set in advance, stopping controlling opening of valve；If the first pressure
The pressure value that force snesor 4 and second pressure sensor 11 measure changes, then repeats above-mentioned signal acquisition and regulation process, from
And realize constant flow rate and supply water.
The method that quantitative water supply is carried out using above-mentioned feed water valve, is comprised the following steps that：
1) water enters from the water inlet end of valve body 6, by water hole 12, is flowed out from the water side of valve body 6；
2) water inlet end of valve body 6 and the pressure of water side are measured using first pressure sensor 4 and second pressure sensor 11
Power；
3) first pressure sensor 4 and second pressure sensor 11 send the pressure value measured to instrument 1, the profit of instrument 1
Calculated with following formula, draw instantaneous delivery Q：
Wherein, s1, s2Pipeline section product at respectively front and rear placement force sensor；v1At first pressure sensor
Flow rate of water flow；p1, p2Water pressure at respectively front and rear pressure sensor；γ is the unit weight of water, takes 9.8kN/m3, g takes
9.8m/s2；Q is the flow measured；
4) instrument 1 is again integrated the instantaneous delivery Q tried to achieve, tries to achieve the required period interior total flow by valve body 6,
Again by the total flow tried to achieve compared with total flow set in advance, if the total flow tried to achieve is less than total stream set in advance
Amount, then motor 2 is failure to actuate, and valve body 6 is kept it turned on, if the total flow tried to achieve is more than or equal to total flow set in advance,
Then motor 2 is moved downward with movable valve plug 8, and valve body 6 is closed.
The derivation of formula used is：
Make p1-p2=Δ p z1-z2=Δ z
Wherein：Δ z is the depth displacement of front and rear pressure sensor, is disregarded herein；s1, s2Respectively front and rear placement force sensing
Pipeline section product at device；v1, v2Flow rate of water flow at respectively front and rear placement force sensor；p1, p2Respectively front and rear pressure
Water pressure at sensor；z1, z2Level head at respectively front and rear pressure sensor；Take α1=α2=1.0；γ is water
Unit weight, take 9.8kN/m3, g takes 9.8m/s2,hwBy the loss of flood peak of valve, can to disregard herein；Q is the flow measured.
Application method of the present utility model is as follows：Feed water valve provided by the utility model is arranged on pipeline, works as needs
When constant flow rate supplies water, required instantaneous delivery is set beforehand through instrument 1, valve is opened by motor 2, valve starts work
Make：
1) water enters from the water inlet end of valve body 6, by water hole 12, is flowed out from the water side of valve body 6；
2) water inlet end of valve body 6 and the pressure of water side are measured using first pressure sensor 4 and second pressure sensor 11
Power；
3) first pressure sensor 4 and second pressure sensor 11 send the pressure value measured to instrument 1, the profit of instrument 1
Calculated with following formula, draw instantaneous delivery Q：
Wherein, s1, s2Pipeline section product at respectively front and rear placement force sensor；v1At first pressure sensor
Flow rate of water flow；p1, p2Water pressure at respectively front and rear pressure sensor；γ is the unit weight of water, takes 9.8kN/m3, g takes
9.8m/s2；Q is the flow measured；
4) instrument 1 feeds back the instantaneous delivery Q tried to achieve compared with instantaneous delivery set in advance, and by comparative result
To motor 2, moved up and down by motor 2 with movable valve plug 8, so as to the aperture size of control valve so that water flow keeps constant；
When the instantaneous delivery Q tried to achieve is less than instantaneous delivery set in advance, motor 2 moves upwards with movable valve plug 8, opens big valve；When
When the instantaneous delivery Q tried to achieve is more than instantaneous delivery set in advance, motor 2 moves downward with movable valve plug 8, turns down valve；
5) until the instantaneous delivery Q tried to achieve is equal to instantaneous delivery set in advance, stopping controlling opening of valve；If the first pressure
The pressure value that force snesor 4 and second pressure sensor 11 measure changes, then repeats above-mentioned signal acquisition and regulation process, from
And realize constant flow rate and supply water.
When needing quantitative water supply, required total flow is set beforehand through instrument 1, valve, valve are opened by motor 2
Door is started working：
1) water enters from the water inlet end of valve body 6, by water hole 12, is flowed out from the water side of valve body 6；
2) water inlet end of valve body 6 and the pressure of water side are measured using first pressure sensor 4 and second pressure sensor 11
Power；
3) first pressure sensor 4 and second pressure sensor 11 send the pressure value measured to instrument 1, the profit of instrument 1
Calculated with following formula, draw instantaneous delivery Q：
Wherein, s1, s2Pipeline section product at respectively front and rear placement force sensor；v1At first pressure sensor
Flow rate of water flow；p1, p2Water pressure at respectively front and rear pressure sensor；γ is the unit weight of water, takes 9.8kN/m3, g takes
9.8m/s2；Q is the flow measured；
4) instrument 1 is again integrated the instantaneous delivery Q tried to achieve, tries to achieve the required period interior total flow by valve body 6,
Again by the total flow tried to achieve compared with total flow set in advance, if the total flow tried to achieve is less than total stream set in advance
Amount, then motor 2 is failure to actuate, and valve body 6 is kept it turned on, if the total flow tried to achieve is more than or equal to total flow set in advance,
Then motor 2 is moved downward with movable valve plug 8, and valve body 6 is closed.
Above-described is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (1)
- A kind of 1. feed water valve, it is characterised in that：Including valve body（6）And bonnet（3）, bonnet（3）Positioned at valve body（6）Top, and valve Lid（3）And valve body（6）It is fixedly connected, valve body（6）Inside it is provided with sleeve（9）, sleeve（9）Inside it is provided with valve element（8）, valve element（8） Pass through valve rod（7）With motor（2）Connection, with valve element（8）Corresponding sleeve（9）On be provided with water hole（12）, valve body（6）Enter Water end (W.E.) offers the first aperture（5）, the first aperture（5）Corresponding valve body（6）Outside is provided with first pressure sensor（4）, valve Body（6）Water side offers second orifice（10）, second orifice（10）Corresponding valve body（6）Outside is provided with second pressure sensing Device（11）, first pressure sensor（4）With second pressure sensor（11）And instrument（1）Electrical connection；Motor（2）And instrument （1）Positioned at valve body（6）Outside, and motor（2）Positioned at bonnet（3）Upper part, valve rod（7）Through bonnet（3）Connect motor（2） And valve element（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720639934.9U CN206786046U (en) | 2017-06-03 | 2017-06-03 | A kind of feed water valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720639934.9U CN206786046U (en) | 2017-06-03 | 2017-06-03 | A kind of feed water valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786046U true CN206786046U (en) | 2017-12-22 |
Family
ID=60715319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720639934.9U Active CN206786046U (en) | 2017-06-03 | 2017-06-03 | A kind of feed water valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206786046U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131315A (en) * | 2017-06-03 | 2017-09-05 | 华北水利水电大学 | A kind of feed water valve and its method of supplying water |
| CN112576799A (en) * | 2019-09-29 | 2021-03-30 | 西门子瑞士有限公司 | Pressure-independent control valve and control method for pressure-independent control valve |
-
2017
- 2017-06-03 CN CN201720639934.9U patent/CN206786046U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131315A (en) * | 2017-06-03 | 2017-09-05 | 华北水利水电大学 | A kind of feed water valve and its method of supplying water |
| CN112576799A (en) * | 2019-09-29 | 2021-03-30 | 西门子瑞士有限公司 | Pressure-independent control valve and control method for pressure-independent control valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206786046U (en) | A kind of feed water valve | |
| CN105594679B (en) | Based on or include the precision and quantity-variation atomizing tester of electrodynamic pump rotational speed regulation | |
| CN102282955B (en) | Venturi variable fertilization device and control method based on pulse width modulation (PWM) | |
| CN202054455U (en) | Bulk loading head capable of controlling material level | |
| CN206214269U (en) | A kind of quantitative eye-drop device | |
| CN202623216U (en) | Servo injection molding machine injection flow precise control system | |
| CN202956673U (en) | Automatic control system based on liquid level of single water tank | |
| CN206385606U (en) | A kind of constant pressure water supply spray irrigation system based on PLC | |
| CN105618293B (en) | The spraying device and its application method of pressure-stabilizing water supply | |
| CN107131315A (en) | A kind of feed water valve and its method of supplying water | |
| CN202252208U (en) | Waterflow servo valve used for constant pressure | |
| CN202715492U (en) | Double-nozzle for sprayer | |
| CN109173764B (en) | Single-point injection type medicine mixing device and medicine mixing method | |
| CN210153008U (en) | Servo energy-saving silent oil source for electro-hydraulic servo dynamic test of testing machine | |
| CN203716977U (en) | Water supply device used for shield tunneling machine of inclined shaft of coal mine | |
| CN103195633B (en) | Full-automatic fuel-injection quantity and fuel injection law testing equipment | |
| CN205384520U (en) | Combined cycle unit steam heating pipeline flow automatic control device | |
| CN204498845U (en) | The quantitative automatic switch injector of a kind of mushroom | |
| CN107432221A (en) | A kind of method of work of distributed automatic spraying arrangement | |
| CN209093801U (en) | A kind of gun controls structure detecting the control amount of dusting using lifting position | |
| CN208793753U (en) | A kind of novel portable electric valve controller | |
| CN208654617U (en) | A kind of water tank water intake intelligent controlling device | |
| CN207347539U (en) | A kind of swinging is bionical to step on bent hydraulic buckling machine | |
| CN202869939U (en) | Circulating water pressure regulator for seepage deformation test | |
| CN201900713U (en) | PID (proportional integral derivative) hydraulic power servo control system based on hydraulic oil temperature feedback |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |