CN110284555A - A kind of tired water system of more pumps zero and method - Google Patents
A kind of tired water system of more pumps zero and method Download PDFInfo
- Publication number
- CN110284555A CN110284555A CN201910579989.9A CN201910579989A CN110284555A CN 110284555 A CN110284555 A CN 110284555A CN 201910579989 A CN201910579989 A CN 201910579989A CN 110284555 A CN110284555 A CN 110284555A
- Authority
- CN
- China
- Prior art keywords
- water
- pump
- water supply
- pumps
- zero
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 225
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 31
- 239000008400 supply water Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
-
- 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
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The embodiment of the invention discloses one kind to pump zero tired water system and method more, water system includes water supply pump group and smart allocation module, the smart allocation module includes pressure of supply water detection module and allocation processing module, the pressure of supply water detection module is connected with allocation processing module, the water supply pump group is made of several water supply pumps, each water supply pump is respectively connected with revolution stop and frequency converter, the frequency converter is connected and is controlled by it with allocation processing module, method of supplying water then passes through the load for limiting single water pump, realize zero fatigue operating of water pump, simultaneously in more pump operation modes, rotation stops water pump, make all water pumps that can access rest, water supply pump group fatigue is avoided to run, to realize zero fatigue operating of water supply pump group, reduce system loss, extend the service life of water pump and water system.
Description
Technical field
The present embodiments relate to urban water supply technical fields, and in particular to a kind of tired water system of more pumps zero and side
Method.
Background technique
Existing complete hydrotechny mainly drags how monotropic frequency hydrotechny and full variable frequency water supply technology with one, one drag it is how monotropic
Frequency technology: with the continuous variation of water consumption, the water pump for participating in operation also adds accordingly to be subtracted, and is participated in the water pump of operation only
One water pump is converting operation, other water pumps are all power frequency operations, the direct 50HZ full speed running of power frequency, that is, water pump, at this time namely
The oepration at full load state (fatigue) of water pump；With being constantly progressive for hydrotechny, now also occur more full frequency conversion moulds of pump on the market
Formula, but most control mode is that more single variable modes are dragged referring to original one, i.e., and only one is frequency control, other are frequency conversions
It runs to full speed 50HZ namely full load condition (fatigue).Water pump operation is not only that motor is at full capacity under full-speed state
State, relevant mechanical seal also operate in fast state, are easy (fatigue).
Summary of the invention
For this purpose, the embodiment of the present invention provides one kind pumps zero tired water system and method more, water system can be realized
Zero fatigue operating, reduces system loss, extends the service life of water pump and water system, to solve in the prior art because for water system
System fatigue operation bring loss is high, the short problem of service life.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
A kind of tired water system of more pumps zero, including water supply pump group and smart allocation module, the smart allocation module packet
Pressure of supply water detection module and allocation processing module are included, the pressure of supply water detection module is connected with allocation processing module, described
Water supply pump group is made of several water supply pumps, and each water supply pump is respectively connected with revolution stop and frequency converter, the frequency conversion
Device is connected and is controlled by it with allocation processing module；
The signal that the frequency converter receives allocation processing module carries out speed control, the pressure of supply water detection to water supply pump
Module detects pipe network discharge pressure, and signal is transmitted to allocation processing module, and the allocation processing module is according to pipe network water outlet pressure
Power adjusts the frequency of frequency converter, and controls the revolving speed of water supply pump according to this, forms a closed-loop control system.
The embodiment of the present invention is further characterized in that the revolution stop is connected with water supply pump and controls its revolving speed, makes to supply
The peak load of water pump is the 85% of rated load.
The embodiment of the present invention is further characterized in that the allocation processing module includes central processing unit, power circuit, key
Display circuit, reset circuit, clock circuit, telecommunication circuit, simulated measurement input circuit, outputting circuit for relay and protection input
Circuit.
The embodiment of the present invention is further characterized in that the power circuit is by rectification, filtering, inversion to common exchange input
Voltage carries out processing and obtains constant-voltage controller working power.
The embodiment of the present invention is further characterized in that the simulated measurement input circuit is used for the transmission of pressure signal, the mould
Analog quantity input circuit is two-way analog input AI (4~20mA)/VI (1-5V), is detected for pressure signal.
The embodiment of the present invention is further characterized in that the protection input circuit is No. 1 power transfer relay output, for outside
Fault alarm and No. 4 water pump overload protection detection switch amounts input, for connecing the protection output signal of electrothermal relay.
The present invention also provides the present invention provides the tired method of supplying water of one kind mostly pump zero, include the following steps:
Step 100, detection pressure of supply water；
Step 200 drives the running of water supply pump group according to pressure of supply water, realizes intelligent water supply；
Step 300 carries out speed limit to single water supply pump, realizes zero fatigue operating of water pump；
Step 400 carries out speed limit to water supply pump group, and carries out rotation adjusting, realizes zero fatigue operating of water supply pump group.
8. a kind of tired method of supplying water of more pumps zero according to claim 7, which is characterized in that the intelligent water supply
Operation are as follows:
Step 201, when water consumption < single-pump flow, first only start a water pump, pump variable frequency operation, and with
The increase of water consumption, frequency increase increase pump rotary speed；
Step 202, when single-pump flow < water consumption < 2 pump discharge, second pump variable frequency starting, and control system passes through
Operation is crossed, first and second water pumps will be averagely allocated to water flow；
Step 203, and so on, when third platform pump frequency conversion starts, first, second and third water pump average allocation water flow
Operation；
Step 204, when water consumption reduce when, the water pump first started is successively exited according to the advanced sequence first moved back.
9. a kind of tired method of supplying water of more pumps zero according to claim 7, which is characterized in that described to supply water to single
Pump carries out the process of speed limit are as follows:
Revolution stop is connected on water supply pump, pump rotary speed is controlled by revolution stop, so that the work of water supply pump
Load only has 85% of its rated power or so, the efficient operation area in water pump, reduces the specific energy consumption of equipment unit.
10. a kind of tired method of supplying water of more pumps zero according to claim 7, which is characterized in that the water supply pump group
Speed limit is carried out, and carries out the process of rotation adjusting are as follows:
The workload of any water pump in step 401, water supply pump group is no more than the 85% of its rated power；
Step 402, according to water requirements, distribute suitable pump working, the water pump of work made to be in efficient operation area
Between；
All water supply pumps are divided into work water pump and the water pump that do not work by step 403, close work water pump in order；
Step 404, while above-mentioned closing work water pump, open the water pump not worked in order, and switch off the pump
It is equal with the operation power of water pump is opened to run power, keeps water supply pump group water supply power constant；
Step 405 repeats step 404.
The embodiment of the present invention has the advantages that
(1) speed limit control when water pump operation is set up 95% or so according to pump motor power and motor speed
The relationship of side, load of the speed in rated speed 95% only have 85% of motor rated power or so, namely control main pump fortune
For peak load when row 85% or so of Rated motor load, the maximum water supply of water pump is the 85% of its limit water supply,
Efficient operation area in water pump, can reduce the specific energy consumption of equipment unit, avoid water pump fatigue from running, to realize water pump
Zero fatigue operating；
(2) with flow increase single pump it is inadequate when, into more pump operation modes, the electricity of any water pump in water supply pump group at this time
Machine revolving speed is no more than the 95% of rated speed, so that the maximum water supply of water supply pump group is the 85% of limit water supply, avoids supplying
The operation of water pump group fatigue, while according to water requirements, suitable pump working is distributed, the water pump of work is in efficient operation area
Between, then successively close running water pump in order, while successively open not running water pump, make run water pump quantity and
The water supply of water supply pump group is constant in above process, loops back and forth like this, and makes all water pumps that can access rest, avoids
Water supply pump group fatigue operation, to realize zero fatigue operating of water supply pump group.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the structural schematic diagram of water system of the embodiment of the present invention；
In figure: 1- pressure of supply water detection module；2- allocation processing module；3- water supply pump；4- revolution stop；5- frequency conversion
Device.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The term of cited such as "upper", "lower", "left", "right", " centre ", is merely convenient to describe in this specification
Be illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the present invention provides one kind to pump zero tired water system, including water supply pump group and smart allocation mould more
Block, the smart allocation module include pressure of supply water detection module 1 and allocation processing module 2, the pressure of supply water detection module 1
It is connected with allocation processing module 2, the water supply pump group is made of several water supply pumps 3, and each water supply pump 3, which is respectively connected with, to be turned
Speed limit unit 4 and frequency converter 5, the frequency converter 5 are connected and are controlled by it with allocation processing module 2.
As shown in Figure 1, the signal that the frequency converter 5 receives allocation processing module 2 carries out speed to water supply pump 3 in the present invention
Degree control, the pressure of supply water detection module 1 detect pipe network discharge pressure, and signal is transmitted to allocation processing module 2, and described point
The frequency of frequency converter 5 is adjusted according to pipe network discharge pressure with processing module 2, and controls the revolving speed of water supply pump 3 according to this, forms one
Closed-loop control system.
In water system in the present invention, every water supply pump 3 is all configured with a frequency converter 5, when a certain frequency converter 5
Or when the failure of water supply pump 3, other water supply pumps 3 still can guarantee and run well, and improve the safety of water system, while can
So that water system water pressure fluctuations are small, to supply water and stablize to guarantee that each switching of water supply pump 3 is that frequency conversion carries out；Due to can be with
The more frequency conversions simultaneously of water supply pump 3, it can be ensured that 3 most of the time of water supply pump runs in high efficient district, can substantially reduce equipment machine
The specific energy consumption of group, energy saving are higher.
Pump motor power and motor speed at cube relationship, so the speed of pump motor is in rated speed 95%
Pump motor power be 95% cube, that is to say that pump motor power only has 85% of its rated power or so, so
Peak load when water supply pump 3 is run at this time is 85% or so of Rated motor load.
As shown in Figure 1, the revolution stop 4 is connected with water supply pump 3 and controls its revolving speed, and water supply pump 3 is transported in the present invention
Power when row is in its rated power 85% hereinafter, can reduce water supply pump 3 to avoid 3 fatigue operation of water supply pump and be lost, extend
The service life of water supply pump 3 and water system.
In the present invention, the allocation processing module 2 includes central processing unit, power circuit, key display circuit, resets electricity
Road, clock circuit, telecommunication circuit, simulated measurement input circuit, outputting circuit for relay and protection input circuit.The power supply electricity
Road carries out processing to common AC-input voltage by rectification, filtering, inversion and obtains constant-voltage controller working power, the simulation
The transmission that input circuit is used for pressure signal is measured, the simulated measurement input circuit is two-way analog input AI (4~20mA)/VI
(1-5V) is detected for pressure signal, and the protection input circuit is No. 1 power transfer relay output, is alarmed for external fault,
It is inputted with No. 4 water pump overload protection detection switch amounts, for connecing the protection output signal of electrothermal relay.
The present invention also provides the present invention provides the tired method of supplying water of one kind mostly pump zero, include the following steps:
Step 100, detection pressure of supply water,；
Step 200 drives the running of water supply pump group according to pressure of supply water；
In the present invention, when water consumption < single-pump flow, only starting a water pump first, pump variable frequency is run, and with
The increase of water consumption, frequency increase increase pump rotary speed；When single-pump flow < water consumption < 2 pump discharge, second water
Pump frequency conversion starting, and control system passes through operation, and first and second water pumps will be averagely allocated to water flow；And so on,
When third platform pump frequency conversion starts, first, second and third water pump average allocation water flow operation；Meanwhile when water consumption reduces,
The water pump first started is successively exited according to the advanced sequence first moved back；Realize intelligent water supply；
Step 300 carries out speed limit to single water supply pump；
By connecting revolution stop on water supply pump, revolution stop controls pump rotary speed, so that the work of water supply pump
Load only has 85% of its rated power or so, the efficient operation area in water pump, reduces the specific energy consumption of equipment unit；
Step 400 carries out speed limit to water supply pump group, and the motor speed of any water pump in water supply pump group is no more than specified turn
The 95% of speed avoids water supply pump group fatigue from running so that the maximum water supply of water supply pump group is the 85% of limit water supply；
Then according to water requirements, suitable pump working is distributed, the water pump of work is in efficient operation section: by institute
Some water supply pumps are divided into work water pump and the water pump that do not work, work water pump are closed in order, in the same of above-mentioned closing work water pump
When, the operation power opening the water pump not worked in order, and switching off the pump is equal with the operation power of water pump is opened, and keeps supplying
Water pump group is constant for water power, constantly repeats to close work water pump and opens the water pump not worked, when avoiding same water pump long
Between work and fatigue operation, make all water pumps that can access rest, realize that zero fatigue of water supply pump group operates.
By the above method, it can be realized zero fatigue operating of water system, reduce system loss, extend water pump and water supply
The service life of system.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (9)
1. a kind of tired water system of more pumps zero, it is characterised in that: including water supply pump group and smart allocation module, the intelligence point
It include pressure of supply water detection module (1) and allocation processing module (2) with module, the pressure of supply water detection module (1) and distribution
Processing module (2) is connected, and the water supply pump group is made of several water supply pumps (3), and each water supply pump (3), which is respectively connected with, to be turned
Speed limit unit (4) and frequency converter (5), the frequency converter (5) are connected and are controlled by it with allocation processing module (2)；
The signal that the frequency converter (5) receives allocation processing module (2) carries out speed control to water supply pump (3), described for hydraulic pressure
Power detection module (1) detects pipe network discharge pressure, and signal is transmitted to allocation processing module (2), the allocation processing module (2)
The frequency of frequency converter (5) is adjusted according to pipe network discharge pressure, and controls the revolving speed of water supply pump (3) according to this, forms a closed loop control
System processed.
2. a kind of tired water system of more pumps zero according to claim 1, it is characterised in that: the revolution stop (4)
It is connected with water supply pump (3) and controls its revolving speed, makes the 85% of the peak load rated load of water supply pump (3).
3. a kind of tired water system of more pumps zero according to claim 1, it is characterised in that: the allocation processing module
It (2) include central processing unit, power circuit, key display circuit, reset circuit, clock circuit, telecommunication circuit, analog input
Circuit, outputting circuit for relay and protection input circuit.
4. a kind of tired water system of more pumps zero according to claim 1, it is characterised in that: the power circuit passes through whole
Stream, filtering, inversion carry out processing to common AC-input voltage and obtain constant-voltage controller working power.
5. a kind of tired water system of more pumps zero according to claim 1, it is characterised in that: the simulated measurement input circuit
For the transmission of pressure signal, the simulated measurement input circuit is two-way analog input AI (4~20mA)/VI (1-5V), is used
It is detected in pressure signal.
6. the much a kind of tired water systems of pump zero according to claim 1, it is characterised in that: the protection input circuit is
No. 1 power transfer relay output, for external fault alarm and No. 4 water pump overload protection detection switch amounts input, for connect heat after
The protection output signal of electric appliance.
7. a kind of tired method of supplying water of more pumps zero, which comprises the steps of:
Step 100, detection pressure of supply water；
Step 200 drives the running of water supply pump group according to pressure of supply water, realizes intelligent water supply；
Step 300 carries out speed limit to single water supply pump, realizes zero fatigue operating of water pump；
Step 400 carries out speed limit to water supply pump group, and carries out rotation adjusting, realizes zero fatigue operating of water supply pump group.
8. a kind of tired method of supplying water of more pumps zero according to claim 7, which is characterized in that the running of the intelligent water supply
Process are as follows:
Step 201, when water consumption < single-pump flow, only start a water pump first, pump variable frequency operation, and with water
The increase of amount, frequency increase increase pump rotary speed；
Step 202, when single-pump flow < water consumption < 2 pump discharge, second pump variable frequency starting, and control system is by fortune
It calculates, first and second water pumps will be averagely allocated to water flow；
Step 203, and so on, when third platform pump frequency conversion starts, first, second and third water pump average allocation water flow operation；
Step 204, when water consumption reduce when, the water pump first started is successively exited according to the advanced sequence first moved back.
9. a kind of tired method of supplying water of more pumps zero according to claim 7, which is characterized in that the water supply pump group is limited
Speed, and carry out the process of rotation adjusting are as follows:
The workload of any water pump in step 401, water supply pump group is no more than the 85% of its rated power；
Step 402, according to water requirements, distribute suitable pump working, the water pump of work made to be in efficient operation section；
All water supply pumps are divided into work water pump and the water pump that do not work by step 403, close work water pump in order；
Step 404, while above-mentioned closing work water pump, the operation opening the water pump not worked in order, and switch off the pump
Power is equal with the operation power of water pump is opened, and keeps water supply pump group water supply power constant；
Step 405 repeats step 404.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910579989.9A CN110284555A (en) | 2019-06-28 | 2019-06-28 | A kind of tired water system of more pumps zero and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910579989.9A CN110284555A (en) | 2019-06-28 | 2019-06-28 | A kind of tired water system of more pumps zero and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110284555A true CN110284555A (en) | 2019-09-27 |
Family
ID=68019786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910579989.9A Pending CN110284555A (en) | 2019-06-28 | 2019-06-28 | A kind of tired water system of more pumps zero and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110284555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578349A (en) * | 2019-09-30 | 2019-12-17 | 湖南省大成水务发展有限责任公司 | Forced locking anti-backflow device for multifunctional valve of water pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326109A (en) * | 1995-06-02 | 1996-12-10 | Hitachi Ltd | Water supply direct-connection water service system |
| CN101753096A (en) * | 2009-11-10 | 2010-06-23 | 中国船舶重工集团公司第七一二研究所 | Power limiter and power control method |
| CN104196088A (en) * | 2014-09-09 | 2014-12-10 | 江南大学 | Frequency conversion speed regulation and constant pressure pipe network water supply system and control method thereof |
| CN205276388U (en) * | 2015-12-15 | 2016-06-01 | 广州市珠峰电气有限公司 | Variable -frequency and constant -pressure water supply system |
| CN107604974A (en) * | 2017-10-24 | 2018-01-19 | 浙江融乐环境科技有限公司 | A kind of non-negative pressure frequency-changing water supply device |
| CN208346918U (en) * | 2017-12-14 | 2019-01-08 | 北京安洁康生物科技有限公司 | Water supply and energy saving control system |
-
2019
- 2019-06-28 CN CN201910579989.9A patent/CN110284555A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326109A (en) * | 1995-06-02 | 1996-12-10 | Hitachi Ltd | Water supply direct-connection water service system |
| CN101753096A (en) * | 2009-11-10 | 2010-06-23 | 中国船舶重工集团公司第七一二研究所 | Power limiter and power control method |
| CN104196088A (en) * | 2014-09-09 | 2014-12-10 | 江南大学 | Frequency conversion speed regulation and constant pressure pipe network water supply system and control method thereof |
| CN205276388U (en) * | 2015-12-15 | 2016-06-01 | 广州市珠峰电气有限公司 | Variable -frequency and constant -pressure water supply system |
| CN107604974A (en) * | 2017-10-24 | 2018-01-19 | 浙江融乐环境科技有限公司 | A kind of non-negative pressure frequency-changing water supply device |
| CN208346918U (en) * | 2017-12-14 | 2019-01-08 | 北京安洁康生物科技有限公司 | Water supply and energy saving control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578349A (en) * | 2019-09-30 | 2019-12-17 | 湖南省大成水务发展有限责任公司 | Forced locking anti-backflow device for multifunctional valve of water pump |
| CN110578349B (en) * | 2019-09-30 | 2024-04-05 | 湖南省大成水务发展有限责任公司 | Forced locking backflow preventing device for multifunctional valve of water pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205276388U (en) | Variable -frequency and constant -pressure water supply system | |
| CN107346896A (en) | A kind of light stores up micro-grid system energy accumulation current converter host-slave parallel control method | |
| CN102074963A (en) | Intelligent reactive compensation comprehensive control device | |
| CN104153425A (en) | Constant-pressure water supply system | |
| CN108279632A (en) | A kind of pumping plant wisdom draining Dispatching Control System | |
| CN105278352B (en) | Oil-field flooding automatic control system and its method | |
| CN109268929A (en) | A kind of energy saving in heating system regulating system and method | |
| CN202694047U (en) | Multi-machine constant-pressure water supply control apparatus based on one-chip microcomputer control | |
| CN201292954Y (en) | Water pump and/or blower fan highly effective energy-conserving control system | |
| CN111561440A (en) | High efficiency air compressor machine unit control system | |
| CN204238299U (en) | The long-range Optimized Operation monitoring system of a kind of pump works | |
| CN110284555A (en) | A kind of tired water system of more pumps zero and method | |
| CN201503063U (en) | Full-automatic unattended heat exchanger unit | |
| CN104167747A (en) | Unbalance and reactive compensation control device for low-voltage power grid | |
| CN108916013A (en) | A kind of water cooling intelligence pump control system | |
| CN203160317U (en) | Double-closed-loop automatic constant-pressure water supply control device of parallelly-connected pipe network | |
| CN107829924A (en) | The control method and equipment that a kind of recirculated water pump group based on big data most saves | |
| CN208487001U (en) | A kind of water cooling intelligence pump control system | |
| CN106320424A (en) | Unequal amount and unsynchronized constant pressure water supply system based on PLC and control method thereof | |
| CN103244396B (en) | The determination of the efficient parallel pumps of secondary water-supply full flow and progress control method | |
| CN206129578U (en) | Optimize photovoltaic water pump system of water yield | |
| CN205742384U (en) | Full VFC supply equipment | |
| CN206092358U (en) | Novel monotropic many pump control of frequency system | |
| CN115305879A (en) | Reservoir dispatching and hydroelectric generation integrated control method and storage medium | |
| CN105974834A (en) | Peak clipping and valley filling servo driving method system used in oil field oil pumping machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210608 Address after: 201507 area a, building 4, 28 zhanye Road, Caojing Town, Jinshan District, Shanghai Applicant after: Shanghai Granville Intelligent Control Technology Group Co.,Ltd. Address before: Room 1103, building 7, Jinshuiyuan, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province Applicant before: Zhong Zhibiao |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190927 |
|
| RJ01 | Rejection of invention patent application after publication |