CN104631567A - Non-negative-pressure variable frequency intelligent water supply control system - Google Patents
Non-negative-pressure variable frequency intelligent water supply control system Download PDFInfo
- Publication number
- CN104631567A CN104631567A CN201310574059.7A CN201310574059A CN104631567A CN 104631567 A CN104631567 A CN 104631567A CN 201310574059 A CN201310574059 A CN 201310574059A CN 104631567 A CN104631567 A CN 104631567A
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- Prior art keywords
- plc
- pressure
- variable frequency
- negative
- relay
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
- E03B11/16—Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/045—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using logic state machines, consisting only of a memory or a programmable logic device containing the logic for the controlled machine and in which the state of its outputs is dependent on the state of its inputs or part of its own output states, e.g. binary decision controllers, finite state controllers
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a non-negative-pressure variable frequency intelligent water supply control system. The non-negative-pressure variable frequency intelligent water supply control system comprises a PLC and a power supply, wherein the PLC is connected with a protective circuit; the input end of the PLC is connected with a liquid level sensor and a pressure sensor; an amplification circuit, a filter circuit and an A/D conversion circuit which are sequentially connected are connected among the liquid level sensor, the pressure sensor and the PLC; the output end of the PLC is connected with a first relay used for controlling a first variable frequency pump, a second relay used for controlling a second variable frequency pump, a third relay used for controlling a first solenoid valve, a fourth relay used for controlling a second solenoid valve, and a negative pressure eliminator; the PLC is further connected with a PLC communication module used for being connected and communicated with an upper computer through an Ethernet interface. The non-negative-pressure variable frequency intelligent water supply control system is simple in structure, reasonable in design, convenient to implement, low in cost, easy and convenient to adjust, high in degree of automation and capable of achieving remote control through the upper computer.
Description
Technical field
The present invention relates to a kind of intelligence control system, especially relate to a kind of non-negative-pressure variable frequency intelligence feed water control system.
Background technology
In China, along with accelerating step by step of urbanization and increasing of highrise building, the range of application of secondary water-supply is more and more extensive, the application of secondary water-supply control system in highrise building field has been tending towards complete, and country is improving constantly for the energy conservation standard of secondary water-supply equipment, type and the use region of secondary water-supply equipment also constantly propose new requirement, in the feedwater occasion of some non-highrise buildings, as: irrigate the water supply system needed for the occasions such as spray, cold and hot water supply system, existing secondary water-supply control system is also inapplicable.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, and provide a kind of non-negative-pressure variable frequency intelligence feed water control system, its structure is simple, reasonable in design, realization is convenient and cost is low, regulates easy, automaticity is high, can realize Long-distance Control by host computer.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of non-negative-pressure variable frequency intelligence feed water control system, it is characterized in that: comprise PLC and to the power supply of each electricity consumption module for power supply of system, described PLC connects with protection circuit, the input of described PLC is connected to liquid level sensor for detecting liquid level signal in vacuum tank in real time and confluxes the pressure sensor of manifold pressure for detecting water outlet in real time, described liquid level sensor and be connected to for amplifying signal between pressure sensor and PLC, the signal conditioning circuit of filtering and A/D conversion process, described signal conditioning circuit is by the amplifying circuit connected successively, filter circuit and A/D change-over circuit are formed, the output of described PLC is connected to and is arranged on the first pressure regulation pipeline and relay one for controlling variable frequency pump one, to be arranged on the second pressure regulation pipeline and relay two for controlling variable frequency pump two, to be arranged on the first pressure regulation pipeline and for the relay three of Controlling solenoid valve one, to be arranged on the second pressure regulation pipeline and for Controlling solenoid valve two relay four and to be arranged on vacuum tank and negative pressure canceller for reducing steady-flow tank negative pressure, described PLC also with for be connected with host computer by Ethernet interface and the PLC communication module communicated connects.
The present invention compared with prior art has the following advantages:
1, structure of the present invention is simple, reasonable in design, and realization is convenient and cost is low.
2, the present invention regulates easy, and automaticity is high, can realize remote monitoring by host computer.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Description of reference numerals:
1-PLC; 2-power supply; 3-liquid level sensor;
4-pressure sensor; 5-protection circuit; 6-amplifying circuit;
7-filter circuit; 8-A/D change-over circuit; 9-variable frequency pump one;
10-relay one; 11-variable frequency pump two; 12-relay two;
13-electromagnetic valve one; 14-relay three; 15-electromagnetic valve two;
16-relay four; 17-negative pressure canceller; 18-PLC communication module;
19-Ethernet interface; 20-host computer.
Detailed description of the invention
As shown in Figure 1, the present invention includes PLC 1 and to the power supply 2 of each electricity consumption module for power supply of system, described PLC 1 connects with protection circuit 5, the input of described PLC 1 is connected to liquid level sensor 3 for detecting liquid level signal in vacuum tank in real time and confluxes the pressure sensor 4 of manifold pressure for detecting water outlet in real time, described liquid level sensor 3 and being connected between pressure sensor 4 and PLC 1 for amplifying signal, the signal conditioning circuit of filtering and A/D conversion process, described signal conditioning circuit is by the amplifying circuit 6 connected successively, filter circuit 7 and A/D change-over circuit 8 are formed, the output of described PLC 1 is connected to and is arranged on the first pressure regulation pipeline and relay 1 for controlling variable frequency pump 1, to be arranged on the second pressure regulation pipeline and relay 2 12 for controlling variable frequency pump 2 11, to be arranged on the first pressure regulation pipeline and for the relay 3 14 of Controlling solenoid valve 1, to be arranged on the second pressure regulation pipeline and for Controlling solenoid valve 2 15 relay 4 16 and to be arranged on vacuum tank and negative pressure canceller 17 for reducing steady-flow tank negative pressure, described PLC 1 also with for be connected with host computer 20 by Ethernet interface 19 and the PLC communication module 18 communicated connects.
Operating principle of the present invention is: the signal detected also is exported to PLC 1 through signal conditioning circuit by the pressure signal of pressure sensor 4 Real-Time Monitoring outlet pipe, PLC 1 obtains the force value of outlet pipe, when water inlet pipe is high pressure, water source is directly transported to outlet pipe for user's water supply by bypass duct, when the hydraulic pressure of water inlet pipe is lower, PLC 1 is by the electromagnetic valve 1 on control relay 3 14 and relay 4 16 control pressure regulation pipeline and electromagnetic valve 2 15, by respectively variable frequency pump 1 and variable frequency pump 2 11 being opened relay 1 and relay 2 12, for user side provides constant pressure water supply, host computer 20 can realize telecommunication by PLC communication module 18 and Ethernet interface 19 with PLC 1 and monitor.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (1)
1. a non-negative-pressure variable frequency intelligence feed water control system, it is characterized in that: comprise PLC (1) and to the power supply (2) of each electricity consumption module for power supply of system, described PLC (1) connects with protection circuit (5), the input of described PLC (1) is connected to liquid level sensor (3) for detecting liquid level signal in vacuum tank in real time and confluxes the pressure sensor (4) of manifold pressure for detecting water outlet in real time, described liquid level sensor (3) and be connected to for amplifying signal between pressure sensor (4) and PLC (1), the signal conditioning circuit of filtering and A/D conversion process, described signal conditioning circuit is by the amplifying circuit connected successively (6), filter circuit (7) and A/D change-over circuit (8) are formed, the output of described PLC (1) is connected to and is arranged on the first pressure regulation pipeline and relay one (10) for controlling variable frequency pump one (9), to be arranged on the second pressure regulation pipeline and relay two (12) for controlling variable frequency pump two (11), to be arranged on the first pressure regulation pipeline and for the relay three (14) of Controlling solenoid valve one (13), to be arranged on the second pressure regulation pipeline and for Controlling solenoid valve two (15) relay four (16) and to be arranged on vacuum tank and negative pressure canceller (17) for reducing steady-flow tank negative pressure, described PLC (1) also with for be connected with host computer (20) by Ethernet interface (19) and the PLC communication module (18) communicated connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574059.7A CN104631567A (en) | 2013-11-14 | 2013-11-14 | Non-negative-pressure variable frequency intelligent water supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574059.7A CN104631567A (en) | 2013-11-14 | 2013-11-14 | Non-negative-pressure variable frequency intelligent water supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104631567A true CN104631567A (en) | 2015-05-20 |
Family
ID=53210763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310574059.7A Pending CN104631567A (en) | 2013-11-14 | 2013-11-14 | Non-negative-pressure variable frequency intelligent water supply control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104631567A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004451A (en) * | 2015-05-27 | 2015-10-28 | 成都德麦科技有限公司 | Pressure sensor |
| CN106245715A (en) * | 2016-08-30 | 2016-12-21 | 山东胜伟园林科技有限公司 | A kind of Fen Gen district, salt-soda soil, Yellow River irrigation vertical alternative water-supply system |
| CN107035674A (en) * | 2017-05-27 | 2017-08-11 | 上海锅炉厂有限公司 | A kind of pump water monitoring system |
-
2013
- 2013-11-14 CN CN201310574059.7A patent/CN104631567A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004451A (en) * | 2015-05-27 | 2015-10-28 | 成都德麦科技有限公司 | Pressure sensor |
| CN106245715A (en) * | 2016-08-30 | 2016-12-21 | 山东胜伟园林科技有限公司 | A kind of Fen Gen district, salt-soda soil, Yellow River irrigation vertical alternative water-supply system |
| CN107035674A (en) * | 2017-05-27 | 2017-08-11 | 上海锅炉厂有限公司 | A kind of pump water monitoring system |
| CN107035674B (en) * | 2017-05-27 | 2019-06-28 | 上海锅炉厂有限公司 | A kind of water pumping monitoring system |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |