CN109578263B - Micro-differential pressure multi-system water supply control system - Google Patents
Micro-differential pressure multi-system water supply control system Download PDFInfo
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- CN109578263B CN109578263B CN201910016176.9A CN201910016176A CN109578263B CN 109578263 B CN109578263 B CN 109578263B CN 201910016176 A CN201910016176 A CN 201910016176A CN 109578263 B CN109578263 B CN 109578263B
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- main control
- control unit
- water pump
- water
- indicator lamp
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 102100026205 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-1 Human genes 0.000 claims description 23
- 101000691599 Homo sapiens 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-1 Proteins 0.000 claims description 23
- 101100190617 Arabidopsis thaliana PLC2 gene Proteins 0.000 claims description 12
- 101100408456 Arabidopsis thaliana PLC8 gene Proteins 0.000 claims description 12
- 101100464304 Caenorhabditis elegans plk-3 gene Proteins 0.000 claims description 12
- 101100093534 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) RPS1B gene Proteins 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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- 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 micro-differential pressure multi-system water supply control system which comprises a first main control unit, a second main control unit, a first water pump, a second water pump, a first pressure sensor and a second sensor, wherein the first main control unit is respectively connected with the first water pump and the first pressure sensor through circuits, the second main control unit is respectively connected with the second water pump and the second sensor through circuits, the first water pump and the second water pump are respectively arranged at water supply ports of a water pipe, and the first pressure sensor and the second sensor are arranged in a pipe cavity of the water pipe. The micro-differential pressure multi-system water supply control system can not cause the states of pump switching or sudden frequency conversion power frequency or power frequency stopping suddenly, so that the water pressure is more constant than the traditional frequency conversion water supply, and the electric energy waste and loss caused by frequent pump switching are avoided.
Description
Technical Field
The invention relates to the technical field of water supply systems, in particular to a micro-differential pressure multi-system water supply control system.
Background
In the traditional control system for no-negative pressure water supply or constant pressure variable frequency water supply, only one real-time target pressure can be set for a control object, and the variable frequency is used for adjusting the rotating speed of the water pump to stabilize the target pressure to tend to a set value.
Disclosure of Invention
The invention aims to provide a micro-differential pressure multi-system water supply control system, which does not have the states of pump switching or abrupt stopping caused by abrupt frequency conversion of power frequency or power frequency, so that the water pressure is more constant than that of the traditional variable frequency water supply, and the waste and loss of electric energy caused by frequent pump switching are avoided.
In order to achieve the above purpose, the present invention provides the following technical solutions: the micro differential pressure multi-system water supply control system comprises a first main control unit, a second main control unit, a first water pump, a second water pump, a first pressure sensor and a second sensor, wherein the first main control unit is respectively connected with the first water pump and the first pressure sensor through circuits, the second main control unit is respectively connected with the second water pump and the second sensor through circuits, the first water pump and the second water pump are respectively arranged at a water supply port of a water pipe, and the first pressure sensor and the second sensor are arranged on a pipe cavity of the water pipe; the first main control unit comprises a main control PLC1 and a frequency converter GF1, wherein a pin 4 of the main control PLC1 is connected with a pin 10 of the frequency converter GF1, a pin 5 of the main control PLC1 is connected with a pin 13 of the frequency converter GF1, a pin 11 of the main control PLC1 is connected with a pin 2 of the frequency converter GF1, a pin 12 of the main control PLC1 is connected with a pin 3 of the frequency converter GF1, a pin 13 of the main control PLC1 is connected with a rear fire line L of the change-over switch SA1, and a pin 15 of the main control PLC1 is connected with a rear zero line N of the relay KM 1; the second main control unit in contain master control PLC2 and converter GF2, wherein, master control PLC 2's pin 4 connects converter GF 2's pin 10, master control PLC 2's pin 5 connects converter GF 2's pin 13, master control PLC 2's pin 11 connects converter GF 2's pin 2, master control PLC 2's pin 12 connects converter GF 2's pin 3, master control PLC 2's pin 13 connects switch SA2 back fire line L, master control PLC 2's pin 15 connects relay KM2 back zero line N.
Preferably, the first main control unit further comprises an indicator lamp HL1, a voltmeter V, an indicator lamp HL2 and a relay switch KM1, wherein one end of the indicator lamp HL1 is connected with a live wire L, the other end of the indicator lamp HL1 is connected with a zero wire N, the voltmeter V1 is connected with two ends of the indicator lamp HL1 through a parallel circuit, one end of the indicator lamp HL2 is connected with the relay switch KM1 and then is connected with the live wire L, and the other end of the indicator lamp HL2 is connected with the zero wire N.
Preferably, the second main control unit further comprises an indicator lamp HL3 and a relay switch KM2, wherein one end of the indicator lamp HL2 is connected with the relay switch KM1 and then is connected with the fire wire L, and the other end of the indicator lamp HL2 is connected with the zero wire N.
Compared with the prior art, the invention has the following beneficial effects:
according to the micro-differential pressure multi-system water supply control system, a main control PLC1 controls a frequency converter GF1, when the target water pressure is increased or decreased, a signal is transmitted to a main control PLC1 controller through a first pressure sensor, the main control PLC1 controls the output frequency of the frequency converter GF1 to be decreased or increased, so that the rotation speed of a first water pump driven by the frequency converter GF1 is decreased or increased, and the target pressure is kept constant; when the pressure of the water is increased and is slightly reduced, the system starts the second master control PLC2 to control the second frequency converter GF2, so that the stable pressure of the second water pump is controlled; therefore, the system has obvious effect on stabilizing the real-time pressure when the water consumption changes, has stable pressure and reduces the energy consumption, and can be widely applied to variable-frequency water supply equipment with secondary pressurization or low-medium-level equipment with higher pressure stability in step-by-step pressure-superposed water supply equipment.
Drawings
FIG. 1 is a schematic diagram of a control system of the present invention;
fig. 2 is a control circuit diagram of the present invention.
In the figure: 1. a first main control unit; 2. a second main control unit; 3. a first water pump; 4. a second water pump; 5. a first pressure sensor; 6. and a second sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a micro differential pressure multi-system water supply control system includes a first main control unit 1, a second main control unit 2, a first water pump 3, a second water pump 4, a first pressure sensor 5 and a second sensor 6, wherein the first main control unit 1 is respectively connected with the first water pump 3 and the first pressure sensor 5 through circuits, the second main control unit 2 is respectively connected with the second water pump 4 and the second sensor 6 through circuits, the first water pump 3 and the second water pump 4 are respectively installed at a water supply port of a water pipe, and the first pressure sensor 5 and the second sensor 6 are installed on a pipe cavity of the water pipe; the first main control unit 1 comprises a main control PLC1 and a frequency converter GF1, wherein a pin 4 of the main control PLC1 is connected with a pin 10 of the frequency converter GF1, a pin 5 of the main control PLC1 is connected with a pin 13 of the frequency converter GF1, a pin 11 of the main control PLC1 is connected with a pin 2 of the frequency converter GF1, a pin 12 of the main control PLC1 is connected with a pin 3 of the frequency converter GF1, a pin 13 of the main control PLC1 is connected with a transfer switch SA1 and then is connected with a fire wire L, and a pin 15 of the main control PLC1 is connected with a relay KM1 and then is connected with a zero wire N; the first main control unit 1 further comprises an indicator lamp HL1, a voltmeter V, an indicator lamp HL2 and a relay switch KM1, wherein one end of the indicator lamp HL1 is connected with a live wire L, the other end of the indicator lamp HL1 is connected with a zero line N, the voltmeter V1 is connected to two ends of the indicator lamp HL1 through a parallel circuit, one end of the indicator lamp HL2 is connected with the relay switch KM1 and then is connected with the live wire L, and the other end of the indicator lamp HL2 is connected with the zero line N; when the target water pressure increases or decreases, a signal is transmitted to a controller of the main control PLC1 through the first pressure sensor 5, and the main control PLC1 controls the output frequency of the frequency converter GF1 to decrease or increase, so that the rotating speed of the first water pump 3 driven by the frequency converter GF1 is reduced or increased, and the target pressure is kept constant; the second main control unit 2 comprises a main control PLC2 and a frequency converter GF2, wherein a pin 4 of the main control PLC2 is connected with a pin 10 of the frequency converter GF2, a pin 5 of the main control PLC2 is connected with a pin 13 of the frequency converter GF2, a pin 11 of the main control PLC2 is connected with a pin 2 of the frequency converter GF2, a pin 12 of the main control PLC2 is connected with a pin 3 of the frequency converter GF2, a pin 13 of the main control PLC2 is connected with a switching switch SA2 back fire connection line L, and a pin 15 of the main control PLC2 is connected with a relay KM2 back zero line N; the second main control unit 2 also comprises an indicator lamp HL3 and a relay switch KM2, wherein one end of the indicator lamp HL2 is connected with a relay switch KM1 and then is connected with a fire wire L, and the other end of the indicator lamp HL2 is connected with a zero line N; when the water pressure is increased and is slightly reduced, the system starts the control console GF2 of the master control PLC2, so that the stable pressure of the second water pump 4 is controlled.
According to the micro-differential pressure multi-system water supply control system, a main control PLC1 controls a frequency converter GF1, when the target water pressure is increased or decreased, a signal is transmitted to a controller of the main control PLC1 through a first pressure sensor 5, and the main control PLC1 controls the output frequency of the frequency converter GF1 to be reduced or increased, so that the rotating speed of a first water pump 3 driven by the frequency converter GF1 is reduced or increased, and the target pressure is kept constant; when the pressure of the water is increased and is slightly reduced, the system starts the second master control PLC2 to control the second frequency converter GF2, so that the stable pressure of the second water pump 4 is controlled; therefore, the system has obvious effect on stabilizing the real-time pressure when the water consumption changes, has stable pressure and reduces the energy consumption, and can be widely applied to variable-frequency water supply equipment with secondary pressurization or low-medium-level equipment with higher pressure stability in step-by-step pressure-superposed water supply equipment.
To sum up: the micro-differential pressure multi-system water supply control system can not cause the states of pump switching or sudden frequency conversion power frequency or power frequency stopping suddenly, so that the water pressure is more constant than that of the traditional frequency conversion water supply, and the electric energy waste and loss caused by frequent switching of the water pump are avoided.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a little differential pressure multisystem water supply control system, includes first main control unit (1), second main control unit (2), first water pump (3), second water pump (4), first pressure sensor (5) and second sensor (6), its characterized in that: the first main control unit (1) is respectively connected with the first water pump (3) and the first pressure sensor (5) through circuits, the second main control unit (2) is respectively connected with the second water pump (4) and the second sensor (6) through circuits, the first water pump (3) and the second water pump (4) are respectively installed at the water supply port of the water pipe, and the first pressure sensor (5) and the second sensor (6) are installed on the pipe cavity of the water pipe; the first main control unit (1) comprises a main control PLC1 and a frequency converter GF1; the second main control unit (2) comprises a main control PLC2 and a frequency converter GF2; the first main control unit (1) further comprises an indicator lamp HL1, a voltmeter V, an indicator lamp HL2 and a relay switch KM1, wherein one end of the indicator lamp HL1 is connected with a live wire L, the other end of the indicator lamp HL1 is connected with a zero line N, the voltmeter V1 is connected to two ends of the indicator lamp HL1 through a parallel circuit, one end of the indicator lamp HL2 is connected with the relay switch KM1 and then is connected with the live wire L, and the other end of the indicator lamp HL2 is connected with the zero line N; the second main control unit (2) also comprises an indicator lamp HL3 and a relay switch KM2, wherein one end of the indicator lamp HL2 is connected with the relay switch KM1 and then connected with the fire wire L, and the other end is connected with the zero line N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016176.9A CN109578263B (en) | 2019-01-08 | 2019-01-08 | Micro-differential pressure multi-system water supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016176.9A CN109578263B (en) | 2019-01-08 | 2019-01-08 | Micro-differential pressure multi-system water supply control system |
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| Publication Number | Publication Date |
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| CN109578263A CN109578263A (en) | 2019-04-05 |
| CN109578263B true CN109578263B (en) | 2024-04-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005083367A (en) * | 2003-09-05 | 2005-03-31 | Hitachi Industrial Equipment Systems Co Ltd | Pump numbers control system |
| CN102359152A (en) * | 2011-08-05 | 2012-02-22 | 重庆成峰二次供水设备有限责任公司 | Two-control multi-constant-pressure water supply equipment control system and control method thereof |
| CN204326159U (en) * | 2014-12-08 | 2015-05-13 | 山东鑫和供水设备有限公司 | A kind of for providing the energy-saving water supply system of stationary flow and pressure |
| CN204572410U (en) * | 2015-02-04 | 2015-08-19 | 郑华娟 | A kind of constant pressure water supply control system |
| CN205475474U (en) * | 2016-01-15 | 2016-08-17 | 昆明理工大学 | Automatic water supply control system of inverter type constant voltage |
| CN209370031U (en) * | 2019-01-08 | 2019-09-10 | 河北诚悦扬节能科技有限公司 | A kind of differential pressure multisystem water management system |
-
2019
- 2019-01-08 CN CN201910016176.9A patent/CN109578263B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005083367A (en) * | 2003-09-05 | 2005-03-31 | Hitachi Industrial Equipment Systems Co Ltd | Pump numbers control system |
| CN102359152A (en) * | 2011-08-05 | 2012-02-22 | 重庆成峰二次供水设备有限责任公司 | Two-control multi-constant-pressure water supply equipment control system and control method thereof |
| CN204326159U (en) * | 2014-12-08 | 2015-05-13 | 山东鑫和供水设备有限公司 | A kind of for providing the energy-saving water supply system of stationary flow and pressure |
| CN204572410U (en) * | 2015-02-04 | 2015-08-19 | 郑华娟 | A kind of constant pressure water supply control system |
| CN205475474U (en) * | 2016-01-15 | 2016-08-17 | 昆明理工大学 | Automatic water supply control system of inverter type constant voltage |
| CN209370031U (en) * | 2019-01-08 | 2019-09-10 | 河北诚悦扬节能科技有限公司 | A kind of differential pressure multisystem water management system |
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| CN109578263A (en) | 2019-04-05 |
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