CN104712019A - Constant pressure water supply control system - Google Patents
Constant pressure water supply control system Download PDFInfo
- Publication number
- CN104712019A CN104712019A CN201310675371.5A CN201310675371A CN104712019A CN 104712019 A CN104712019 A CN 104712019A CN 201310675371 A CN201310675371 A CN 201310675371A CN 104712019 A CN104712019 A CN 104712019A
- Authority
- CN
- China
- Prior art keywords
- module
- water supply
- chip microcomputer
- constant pressure
- control system
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The invention discloses a constant pressure water supply control system, and belongs to the technical field of automatic control. The constant pressure water supply control system is characterized by comprising a single chip microcomputer (1), an alarming module (2), a pressure detection module (3), a pump driving module (4), a pump (5), a liquid crystal display module (6), a frequency converter module (7) and a communication interface module (8). Compared with the prior art, the constant pressure water supply control system has the beneficial effects of being high in stability, low in noise, high in reliability, free of undisturbed switching and the like.
Description
Technical field
The invention belongs to automatic control technology field, in particular, belong to a kind of constant pressure water supply control system.
Background technology
In water resource and electric energy epoch in short supply gradually, the important theme becoming and build sustainable development society of saving water and energy, for a long time at municipal water supply, high-floor feedwater, the aspect technology such as plant produced periodical feeding are always relatively backward, and automaticity is low.Frequency Converted take pipe network water pressure as setup parameter, by controlling the output frequency of frequency converter thus automatically regulating the rotating speed of pump motor, realizes pipe network water pressure closed-loop adjustment, makes water system automatic constant in the force value of setting.According to the size of water supply volume, control the quantity of water pump by control system and control frequency converter to the speed governing of water pump, realizing constant pressure water supply.Frequency conversion speed adjusting have electric motor starting and braking steadily, without features such as water hammer effect, noise are low.Improve stability and the reliability of water system simultaneously.
Domestic have many companies doing constant pressure water supply engineering, TD2100 series constant voltage special converter and Chengdu Hope Group 5.5Kw mono-45Kw constant voltage special converter are released in electric corporation of Huawei, former Shenzhen (now renaming Emerson as), without the need to external PLC and PID adjuster, the cyclic switching of maximum 4 water pumps can be completed, there is the function of timing start-stop and timing cycle.Pressure closed loop regulates by this frequency converter and circle logic controlling functions is integrated in frequency converter inside and realizes, but its output interface limits load-carrying capacity, operation inconvenience simultaneously and do not have data communication function, in therefore being suitable for, the water system of low capacity.The research of current Frequency conversion speed adjusting at home and abroad, if in being applied in, in jumbo constant pressure water supply system, meet different demand water supply volume, ensures that again water pipe ductwork pressure is constant, then need provide pressure closed loop adjusting device in frequency converter outside.And the endless form of multiple stage water pump controls to need outside to reoffer logic control link.On the handoff technique of frequency conversion and power frequency, mostly adopt the reduced-voltage starting method of main circuit serial connection soft initiator.For in, the hydraulic pressure closed-loop control problem that exists in Large Copacity constant pressure water supply system and variable-frequency power sources and the stable switching problem of power frequency supply undisturbed do not solved at all.The engineering of water system generally adopts the rotating speed of external Frequency Converter Control water pump, and the closed-loop adjustment of pipe network water pressure and the endless form of multiple stage water pump control, and some employing programmable logic controllers are achieved; Some employing single-chip microcomputers and corresponding software are achieved.From reliability, PLC is better than single-chip microcomputer; From economic aspect, single-chip microcomputer is better than PLC.On the handoff technique of frequency conversion and power frequency, most method of main circuit serial connection soft starter that adopts carries out reduced voltage starting; Have minority to adopt the control impuls closing frequency converter when switching, it is zero that frequency converter is exported, and is then switched on power frequency supply by motor (water pump).These two kinds of methods, the former easily realizes, and soft starter is finished product, and equipment investment is comparatively large, although the latter's equipment investment is few, but frequency fluctuation is large, easily causes siphon pressure unstable, produces water hammer effect.Therefore, await further research and improve the performance of constant pressure water supply system, and in reducing, the cost of Large Copacity water management system.
Summary of the invention
The present invention, in order to effectively solve above technical problem, gives a kind of constant pressure water supply control system.
A kind of constant pressure water supply control system of the present invention, is characterized in that: comprise single-chip microcomputer, alarm module, pressure detecting module, pump driver module, pump, LCD MODULE, frequency converter module, communication interface modules;
Described single-chip microcomputer is connected with described alarm module, described single-chip microcomputer is connected with described pressure detecting module, described single-chip microcomputer is connected with described pump driver module, described pump driver module is connected with described pump, described single-chip microcomputer is connected with described LCD MODULE, described single-chip microcomputer is connected with described frequency converter module, described single-chip microcomputer and described communication interface modules.
The present invention is compared with prior art: have the advantages such as stability is high, noise is low, reliability is high, switching undisturbed.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of constant pressure water supply control system of the present invention.
Detailed description of the invention
Fig. 1 is the structural representation of constant pressure water supply control system of the present invention, a kind of constant pressure water supply control system of the present invention, is characterized in that: comprise single-chip microcomputer 1, alarm module 2, pressure detecting module 3, pump driver module 4, pump 5, LCD MODULE 6, frequency converter module 7, communication interface modules 8;
Described single-chip microcomputer 1 is connected with described alarm module 2, described single-chip microcomputer 1 is connected with described pressure detecting module 3, described single-chip microcomputer 1 is connected with described pump driver module 4, described pump driver module 4 is connected with described pump 5, described single-chip microcomputer 1 is connected with described LCD MODULE 6, described single-chip microcomputer 1 is connected with described frequency converter module 7, described single-chip microcomputer 1 and described communication interface modules 8.
Claims (1)
1. a constant pressure water supply control system, is characterized in that: comprise single-chip microcomputer (1), alarm module (2), pressure detecting module (3), pump driver module (4), pump (5), LCD MODULE (6), frequency converter module (7), communication interface modules (8);
Described single-chip microcomputer (1) is connected with described alarm module (2), described single-chip microcomputer (1) is connected with described pressure detecting module (3), described single-chip microcomputer (1) is connected with described pump driver module (4), described pump driver module (4) is connected with described pump (5), described single-chip microcomputer (1) is connected with described LCD MODULE (6), described single-chip microcomputer (1) is connected with described frequency converter module (7), described single-chip microcomputer (1) and described communication interface modules (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675371.5A CN104712019A (en) | 2013-12-11 | 2013-12-11 | Constant pressure water supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675371.5A CN104712019A (en) | 2013-12-11 | 2013-12-11 | Constant pressure water supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712019A true CN104712019A (en) | 2015-06-17 |
Family
ID=53411710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310675371.5A Pending CN104712019A (en) | 2013-12-11 | 2013-12-11 | Constant pressure water supply control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712019A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201768A (en) * | 2017-06-22 | 2017-09-26 | 合肥佳洋电子科技有限公司 | A kind of intelligent water supply system |
| CN108775045A (en) * | 2018-03-30 | 2018-11-09 | 天津中德应用技术大学 | A kind of constant pressure circulating water supply system based on special converter |
-
2013
- 2013-12-11 CN CN201310675371.5A patent/CN104712019A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201768A (en) * | 2017-06-22 | 2017-09-26 | 合肥佳洋电子科技有限公司 | A kind of intelligent water supply system |
| CN108775045A (en) * | 2018-03-30 | 2018-11-09 | 天津中德应用技术大学 | A kind of constant pressure circulating water supply system based on special converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |
|
| WD01 | Invention patent application deemed withdrawn after publication |