CN205742382U - A kind of constant pressure water supply control system of water supply network - Google Patents
A kind of constant pressure water supply control system of water supply network Download PDFInfo
- Publication number
- CN205742382U CN205742382U CN201521134177.7U CN201521134177U CN205742382U CN 205742382 U CN205742382 U CN 205742382U CN 201521134177 U CN201521134177 U CN 201521134177U CN 205742382 U CN205742382 U CN 205742382U
- Authority
- CN
- China
- Prior art keywords
- water supply
- pressure
- control system
- electricity
- constant pressure
- 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
Links
Landscapes
- Control Of Electric Motors In General (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
This application discloses the constant pressure water supply control system of a kind of water supply network, for the pressure of supply water of water supply network is carried out Isobarically Control, specifically include electricity receptor, pressure-detecting device, PID controller and converter plant.Electricity receptor is used for connecting three-phase mains network；Pressure-detecting device is for detecting the pressure of supply water of described water supply network, and is reflected the force value of pressure of supply water by output；PID controller is connected with pressure-detecting device, is used for the difference according to force value and preset pressure value to converter plant output speed control signal；Converter plant is connected with electricity receptor, the driving motor of water pump of water supply network respectively, for according to speed controling signal to driving the three-phase drive voltage of motor output predeterminated frequency so that driving motor to drive pump operation by preset rotation speed.The technical program keeps the pressure of water supply network to keep constant by the way of controlling pump rotary speed such that it is able to avoid water supply network to burst because going beyond the limit of.
Description
Technical field
The application relates to automatic control technology field, more particularly, it relates to the constant pressure water supply of a kind of water supply network controls
System.
Background technology
At present, in community, urban or rural area, or water pump is being driven to supply water for common motor.Motor
When driving pump working, motor is unanimously operated at full speed, and therefore water yield of its output is more constant, but due to water
Amount can vary over, and causes the pressure of water supply network to change in time, the most even can cause pipe network
Pressure goes beyond the limit of, thus causes water pipe to burst, and the domestic water of resident is caused strong influence.
Utility model content
In view of this, the application provides the constant pressure water supply control system of a kind of water supply network, for controlling water supply network
Pressure keeps constant, to avoid water supply network to burst because going beyond the limit of.
To achieve these goals, it is proposed that scheme as follows:
A kind of constant pressure water supply control system of water supply network, including:
Electricity receptor, is used for connecting three-phase mains network；
Pressure-detecting device, for detecting the pressure of supply water of described water supply network, and by signal output part output reflection
The force value of described pressure of supply water；
The PID controller that signal input part is connected with the signal output part of described pressure-detecting device, is provided with control
Signal output part, the difference output that described control signal outfan is configured for according to described force value with preset pressure value turns
Speed control signal；
The converter plant that signal input part is connected with described control signal outfan, is provided with electricity receiving terminal and electricity output
End；
Described electricity receiving terminal is connected with described electricity receptor；
Described electricity outfan, for connecting the driving motor of the water pump of described water supply network, is configured to according to described rotating speed control
Signal processed is to the three-phase drive voltage of described driving motor output predeterminated frequency.
Optionally, described electricity receptor includes three-phase power line.
Optionally, described pressure-detecting device includes distance-transmission pressure gauge.
Optionally, described converter plant includes three phase converter.
Optionally, also include:
Timing means, is connected with described electricity receptor.
Optionally, also include:
It is arranged on the protection device on described electricity receptor, for cutting off described electricity receptor when being transmitted across stream or overvoltage
Electric energy output.
Optionally, described protection device is miniature circuit breaker.
Optionally, also include:
The warning devices being connected with described converter plant, for sending alarm signal when described converter plant breaks down
Number.
Optionally, described warning devices includes acoustooptic alarm.
From above-mentioned technical scheme it can be seen that this application discloses the constant pressure water supply control system of a kind of water supply network,
For the pressure of supply water of water supply network is carried out Isobarically Control, specifically include electricity receptor, pressure-detecting device, PID controller
And converter plant.Electricity receptor is used for connecting three-phase mains network；Pressure-detecting device is for detecting the confession of described water supply network
Water pressure, and by the force value of output reflection pressure of supply water；PID controller is connected with pressure-detecting device, for basis
The difference of force value and preset pressure value is to converter plant output speed control signal；Converter plant respectively with electricity receptor, confession
The driving motor of the water pump of grid is connected, for exporting the three-phase of predeterminated frequency to driving motor according to speed controling signal
Driving voltage, so that driving motor to drive pump operation by preset rotation speed.The technical program is by the way of controlling pump rotary speed
The pressure keeping water supply network keeps constant such that it is able to avoid water supply network to burst because going beyond the limit of.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 1 provides for the embodiment of the present application；
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 2 provides for another embodiment of the application；
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 3 provides for the another embodiment of the application；
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 4 provides for the another embodiment of the application.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Describe, it is clear that described embodiment is only some embodiments of the present application rather than whole embodiments wholely.Based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of the application protection.
Embodiment one
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 1 provides for the embodiment of the present application.
As it is shown in figure 1, the constant pressure water supply control system that the present embodiment provides is for being controlled water system, make water supply
Pipe network reaches the purpose of constant pressure water supply, specifically includes electricity receptor, pressure-detecting device, PID controller and converter plant.
Electricity receptor 10 is used for connecting three-phase mains network, for receiving three-phase mains from three-phase mains network 100, as
For driving the power resources of the driving motor M of water pump.Electroreceptor 10 specifically includes three-phase power line, the one of three-phase power line
End is used for connecting three-phase mains network 100.
Pressure-detecting device 20 is for detecting the pressure of supply water of water supply network, and is supplied by the output reflection of its signal output part
The force value of water pressure, its signal output part is connected with the signal input part of PID controller 30, for force value being exported
PID controller 30.Pressure-detecting device 20 includes the distance-transmission pressure gauge being arranged in pipe network and for being exported by distance-transmission pressure gauge
Pressure signal be converted to the A/D convertor circuit of this force value.
The signal input part of PID controller 30 receives the force value of pressure-detecting device 20 input by signal input part,
And carry out PID calculating according to the difference of force value Yu preset pressure value, obtain the speed controling signal for controlling converter plant,
The signal output part of PID controller 30 is connected with the signal input part 41 of converter plant 40, and signal output part will be for passing through
The calculated speed controling signal of PID exports converter plant 40.
Converter plant 40 is provided with signal input part 41, electricity receiving terminal 42 and electricity outfan 43.Electricity receiving terminal 42 connects with electricity
The three-phase power line received in device 10 is connected, for receiving power frequency three-phase alternating current from three-phase power line, and according to receiving
Speed controling signal exports the three-phase alternating current of corresponding frequencies from electricity outfan 43.
Converter plant 40 includes converter, matches with three-phase alternating current, and this converter is three phase converter.Converter plant
Electric outfan 43 for being connected to drive the driving motor of the water pump of water supply network.So that driving motor M to fill in frequency conversion
Put and drive pump operation with default rotating speed under the control of 40, thus keep the pressure of water supply network constant.
From technique scheme it can be seen that present embodiments provide the constant pressure water supply control system of a kind of water supply network,
For the pressure of supply water of water supply network is carried out Isobarically Control, specifically include electricity receptor, pressure-detecting device, PID controller
And converter plant.Electricity receptor is used for connecting three-phase mains network；Pressure-detecting device is for detecting the confession of described water supply network
Water pressure, and by the force value of output reflection pressure of supply water；PID controller is connected with pressure-detecting device, for basis
The difference of force value and preset pressure value is to converter plant output speed control signal；Converter plant respectively with electricity receptor, confession
The driving motor of the water pump of grid is connected, for exporting the three-phase of predeterminated frequency to driving motor according to speed controling signal
Driving voltage, so that driving motor to drive pump operation by preset rotation speed.The technical program is by the way of controlling pump rotary speed
The pressure keeping water supply network keeps constant such that it is able to avoid water supply network to burst because going beyond the limit of.
Embodiment two
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 2 provides for another embodiment of the application.
As in figure 2 it is shown, the constant pressure water supply control system that the present embodiment provides is to be additionally arranged on the basis of a upper embodiment
Timing means 50.
Electricity receptor 50 is connected with electricity receptor 10, for according to the time preset to electric receptor and electricity network
Connection carry out break-make control, to reach the purpose of Timing water supply, to avoid idle to continue the waste of energy that causes of supplying water.
Embodiment three
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 3 provides for the another embodiment of the application.
As it is shown on figure 3, the constant pressure water supply control system that the present embodiment provides is to be additionally arranged on the basis of a upper embodiment
Protection device 60.
Protection device 60 is arranged on electricity receptor 10, is specially arranged on the miniature circuit breaker on three-phase power line, logical
Cross and all power supplies of native system can be stopped by circuit breaker trip, in order to maintainer carries out safety inspection.
Embodiment four
The structured flowchart of the constant pressure water supply control system of a kind of water supply network that Fig. 4 provides for the another embodiment of the application.
As shown in Figure 4, the constant pressure water supply control system that the present embodiment provides is to be additionally arranged on the basis of a upper embodiment
Warning devices 70.
Warning devices 70 is connected with converter plant 40, alert for sending acousto-optic after converter plant 40 breaks down in time
The number of notifying, to point out maintainer to keep in repair in time.The preferred acoustooptic alarm of warning devices 70.
Embodiment five
In the present embodiment, MCB is miniature circuit breaker, and for converter and motor are carried out short-circuit protection, ZK is real-time
Clock controller, KM is A.C. contactor, ZJ1 and ZJ2 is auxiliary reclay, and SGBJ is audible-visual annunciator, and XSC5-AHLV0 is
PID controller.
After MCB Guan Bi, ZK obtains electric, opens motor setting value or manual mode unlatching motor when real-time time arrives
The normally opened contact making ZK closes, and then the coil of ZJ1 obtains its normally opened contact of electric adhesive Guan Bi, obtains electric preparing for KM coil,
Now motor is work, and distance-transmission pressure gauge pressure position zero exports not less than the setting value of PID controller, the AL1 of PID controller
Action, the normally opened contact of AL1 disconnects, and the coil of ZJ2 must not close by its normally-closed contact of electricity, and the coil of KM obtains electric adhesive, converter
Obtain electric, connect M1 and the COM terminal of converter, motor start-up, PID owing to one group of normally opened contact of ZJ1 is in closure state
Controller, according to the pressure data of distance-transmission pressure gauge, adjusts it and controls the output 0-10V frequency setting source as converter, thus
Control motor speed.
After force value exceedes setting value, the AL1 output action of PID controller, the normally opened contact Guan Bi of AL1, the line of ZJ2
Enclosing to obtain its normally-closed contact electric disconnection, the coil losing electricity of KM disconnects, and SGBJ sends sound and light alarm simultaneously.When converter breaks down
Time, KM coil does not turns off, and only sends sound and light alarm, and troubleshooting is easy in converter not power-off.Set when real-time time arrives closedown
Definite value or manual mode are closed motor and are obtained the normally opened contact disconnection of ZK, now ZJ1 coil losing electricity, and its normally opened contact disconnects,
KM coil losing electricity disconnects, converter and electric motor circuit breaking.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.Upper to the disclosed embodiments
State bright, make professional and technical personnel in the field be capable of or use the application.To the multiple amendment of these embodiments to ability
Will be apparent from for the professional and technical personnel in territory, generic principles defined herein can be without departing from the application's
In the case of spirit or scope, realize in other embodiments.Therefore, the application be not intended to be limited to shown in this article these
Embodiment, and it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (9)
1. the constant pressure water supply control system of a water supply network, it is characterised in that including:
Electricity receptor, is used for connecting three-phase mains network；
Pressure-detecting device is for detecting the pressure of supply water of described water supply network and described by signal output part output reflection
The force value of pressure of supply water；
The PID controller that signal input part is connected with the signal output part of described pressure-detecting device, is provided with control signal
Outfan, described control signal outfan is configured for the difference output speed control according to described force value Yu preset pressure value
Signal processed；
The converter plant that signal input part is connected with described control signal outfan, is provided with electricity receiving terminal and electricity outfan；
Described electricity receiving terminal is connected with described electricity receptor；
Described electricity outfan, for connecting the driving motor of the water pump of described water supply network, is configured to control letter according to described rotating speed
Number to described driving motor output predeterminated frequency three-phase drive voltage.
2. constant pressure water supply control system as claimed in claim 1, it is characterised in that described electricity receptor includes three phase mains
Line.
3. constant pressure water supply control system as claimed in claim 1, it is characterised in that described pressure-detecting device includes teletransmission pressure
Power table.
4. constant pressure water supply control system as claimed in claim 1, it is characterised in that described converter plant includes three phase variable frequency
Device.
5. the constant pressure water supply control system as described in any one of claim 1-4, it is characterised in that also include:
Timing means, is connected with described electricity receptor.
6. constant pressure water supply control system as claimed in claim 5, it is characterised in that also include:
It is arranged on the protection device on described electricity receptor, for cutting off the electricity of described electricity receptor when being transmitted across stream or overvoltage
Can output.
7. constant pressure water supply control system as claimed in claim 6, it is characterised in that described protection device is miniature circuit breaker.
8. constant pressure water supply control system as claimed in claim 5, it is characterised in that also include:
The warning devices being connected with described converter plant, for the signal an alert when described converter plant breaks down.
9. constant pressure water supply control system as claimed in claim 8, it is characterised in that described warning devices includes audible and visible alarm
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134177.7U CN205742382U (en) | 2015-12-30 | 2015-12-30 | A kind of constant pressure water supply control system of water supply network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134177.7U CN205742382U (en) | 2015-12-30 | 2015-12-30 | A kind of constant pressure water supply control system of water supply network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205742382U true CN205742382U (en) | 2016-11-30 |
Family
ID=57387904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521134177.7U Expired - Fee Related CN205742382U (en) | 2015-12-30 | 2015-12-30 | A kind of constant pressure water supply control system of water supply network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205742382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116069075A (en) * | 2022-12-02 | 2023-05-05 | 山东省农业机械科学研究院 | High-efficiency accurate constant-pressure water supply control method, system and readable storage medium |
-
2015
- 2015-12-30 CN CN201521134177.7U patent/CN205742382U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116069075A (en) * | 2022-12-02 | 2023-05-05 | 山东省农业机械科学研究院 | High-efficiency accurate constant-pressure water supply control method, system and readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204175620U (en) | A kind of fan intelligent control system | |
| CN105186575A (en) | Diesel generating set parallel operation system for safety source of thermal power plant | |
| CN203394724U (en) | Automatic submersible sewage pump alternation control system | |
| CN103104532B (en) | A kind of mining intelligent ventilator controller | |
| CN105119159A (en) | Power distribution cabinet with intelligent monitoring temperature control function | |
| CN205742382U (en) | A kind of constant pressure water supply control system of water supply network | |
| CN205160093U (en) | Thermal power plant is diesel generating set parallel machine system for emergency power supply | |
| CN105763111A (en) | Generating set automatic power generation intelligent controller | |
| CN204886560U (en) | A intelligent economize on electricity system for cold rolling main electric machine cooling fan | |
| CN202789325U (en) | Device for preventing PLC (Programmable Logic Controller) control system of wind power generator from galloping | |
| CN201100261Y (en) | Intelligent energy-saver for wind engine | |
| CN204267215U (en) | The pitch motor drive unit of wind power generating set | |
| CN103683891B (en) | A kind of transducer control circuit, method and speed-adjusting and control system | |
| CN203512679U (en) | Automatic loading and feeding device and control circuit thereof | |
| CN207698457U (en) | A kind of self-powered cement bunker library clearing machine crushing head | |
| CN102063072A (en) | Control system and method for center pivot type sprayer | |
| CN201560451U (en) | Control system of variable-frequency water supply without negative pressure | |
| CN209324630U (en) | A kind of control system of water pump | |
| CN203878660U (en) | Novel redundancy control system in secondary water supply system | |
| CN209313752U (en) | Liquid resistance starting cabinet control system with frequency conversion control function | |
| CN205960997U (en) | Motor soft starter | |
| CN203201842U (en) | Mining intelligent ventilator controller | |
| CN216275957U (en) | One-pump one-frequency conversion water supply equipment | |
| CN203813653U (en) | Variable-frequency drive control circuit and variable-frequency drive control system | |
| CN201797299U (en) | Reverse-power relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20171230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |