CN206289690U - Energy-saving type purification of water quality is without negative pressure secondary water system - Google Patents
Energy-saving type purification of water quality is without negative pressure secondary water system Download PDFInfo
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- CN206289690U CN206289690U CN201621227437.XU CN201621227437U CN206289690U CN 206289690 U CN206289690 U CN 206289690U CN 201621227437 U CN201621227437 U CN 201621227437U CN 206289690 U CN206289690 U CN 206289690U
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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
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- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model is related to a kind of energy-saving type purification of water quality without negative pressure secondary water system, including：Water feed apparatus, with water inlet pipe, one end of the water inlet pipe is used to dock city planting ductwork；Connect the low pressure ultrafiltration film purifying device of the water inlet pipe other end, the low pressure ultrafiltration film purifying device includes some in the low pressure ultrafiltration membrane stack being arranged in parallel, and described each low pressure ultrafiltration membrane stack has hydrophilic ultrafiltration membrane component；Control module, for controlling the water feed apparatus, low pressure ultrafiltration film purifying device and non-negative pressure method of water supply device to work.Above-mentioned energy-saving type purification of water quality utilizes the water-wet behavior of above-mentioned hydrophilic ultrafiltration membrane component without negative pressure secondary water system, the current into the low pressure ultrafiltration film purifying device just can be filtered by the hydrophilic ultrafiltration membrane component without pressurization, so, the current of city planting ductwork are directly entered low pressure ultrafiltration film purifying device by above-mentioned water inlet pipe 111, make full use of municipal ductwork pressure, without separately adding booster pump, energy consumption and cost are reduced.
Description
Technical field
The utility model is related to urban water supply field, and more particularly to a kind of energy-saving type purification of water quality supplies water without negative pressure secondary
System.
Background technology
With continuing to develop for urbanization, secondary water-supply is more and more universal, for the energy-saving and water of secondary water-supply
The health of matter receives the highest attention of society.In recent years, in order to ensure the energy-saving safe of secondary water-supply, will be without negative pressure two
Secondary water supply installation introduces traditional secondary water system；While the hygienic quality in order to ensure secondary water-supply, during elimination water delivery
The secondary pollution that bacterium, microorganism in feedwater piping etc. are caused, introduces milipore filter purifying processing device traditional secondary and supplies water
System.Milipore filter purifying processing device has manifested big advantage with the perfect adaptation of non-negative pressure method of water supply device.
Traditional secondary water-supply problem and water quality security, but it still suffers from some defects, wherein, by secondary confession
The water inlet of the milipore filter purifying processing device of water system is required for pressurizeing again after entering, and can just pass through the milipore filter purified treatment
Device, so, just needs to install booster pump additional in addition, causes larger energy consumption, while increasing cost.
Utility model content
Based on this, it is necessary to for the problem of traditional secondary water supply system, there is provided a kind of section that need not install booster pump additional
Energy formula purification of water quality is without negative pressure secondary water system.
A kind of energy-saving type purification of water quality without negative pressure secondary water system, including：
Water feed apparatus, with water inlet pipe, one end of the water inlet pipe is used to dock city planting ductwork；
The low pressure ultrafiltration film purifying device of the water inlet pipe other end is connected, if the low pressure ultrafiltration film purifying device includes
Dry is in the low pressure ultrafiltration membrane stack being arranged in parallel, and described each low pressure ultrafiltration membrane stack has hydrophilic ultrafiltration membrane component；
It is connected to the non-negative pressure method of water supply device of the low pressure ultrafiltration film purifying device；
It is connected to user's pipe network of the non-negative pressure method of water supply device；
And control module, for controlling the water feed apparatus, low pressure ultrafiltration film purifying device and non-negative pressure method of water supply device work
Make.
Above-mentioned energy-saving type purification of water quality utilizes the hydrophilic spy of above-mentioned hydrophilic ultrafiltration membrane component without negative pressure secondary water system
Property, the current into the low pressure ultrafiltration film purifying device just can be carried out by the hydrophilic ultrafiltration membrane component without pressurization
Filter, so, the current of city planting ductwork are directly entered low pressure ultrafiltration film purifying device by above-mentioned water inlet pipe 111, make full use of municipal administration
Ductwork pressure, without separately adding booster pump, reduces energy consumption, and then reduce cost.
Wherein in an implementation method, the hydrophilic ultrafiltration membrane component include PVC hollow fiber membrane and/or
Pvdf Microporous Hollow Fiber Membrane.
Wherein in an implementation method, the membrane aperture of PVC hollow fiber membrane or Pvdf Microporous Hollow Fiber Membrane
Between 0.01-0.1 microns, transmembrane pressure is between 2-30KPa.
Wherein in an implementation method, each low pressure ultrafiltration membrane stack also includes：
The water inlet end of the water inlet pipe is connected to, for the current of the water inlet pipe to be caused into the hydrophilic ultrafiltration membrane group
Part；
The water side of the negative pressure water supply device is connected to, for will draw by the current of the hydrophilic ultrafiltration membrane component
To the negative pressure water supply device.
Wherein in an implementation method, above-mentioned energy-saving type purification of water quality also includes without negative pressure secondary water system：
The first blow-off pipe of the water side of the low pressure ultrafiltration membrane stack is connected to, for the hydrophilic ultrafiltration membrane will to be cleaned
The current discharge of component.
Wherein in an implementation method, above-mentioned energy-saving type purification of water quality also includes without negative pressure secondary water system：
First blowdown controls valve, the opened closing for controlling first blow-off pipe by the control module.
Wherein in an implementation method, the low pressure ultrafiltration film purifying device has for cleaning the hydrophily ultrafiltration
Membrane module mutually rushes cleaning unit, described mutually to rush cleaning unit and include：
The cleaning connecting tube between two low pressure ultrafiltration membrane stacks is connected to, for by one of them low pressure ultrafiltration
The current of the water side outflow of membrane stack cause the water side of another low pressure ultrafiltration membrane stack, make to enter another low pressure ultrafiltration
The current of membrane stack carry out reverse cleaning to the hydrophilic ultrafiltration membrane component of the low pressure ultrafiltration membrane stack；
Second blow-off pipe of the water inlet end of another low pressure ultrafiltration membrane stack is set, for will be by the low pressure ultrafiltration membrane stack
Water side enter the hydrophilic ultrafiltration membrane component current discharge.
It is described mutually to rush cleaning unit and also include wherein in an implementation method：
Second blowdown controls valve, for controlling opening or closing for second blow-off pipe by the control module.
Wherein in an implementation method, the water feed apparatus include：It is arranged at the water intaking valve of described water inlet pipe one end；
Stream preventer, the aqueous reflux for preventing from entering water inlet pipe；Filter, the impurity for filtering the water for entering water inlet pipe；Turbidity
Instrument, the turbidity for detecting the water in water inlet pipe；Flowmeter, the flow for detecting the water in water inlet pipe；Pressure sensor,
Pressure for detecting the water in water inlet pipe；Sample tap.
Wherein in an implementation method, the control module includes PLC control devices.
Brief description of the drawings
Fig. 1 is the module of the energy-saving type purification of water quality without negative pressure secondary water system of the preferred embodiment of the utility model one
Schematic diagram；
Fig. 2 is the energy-saving type purification of water quality of Fig. 1 without the low pressure ultrafiltration film purifying device of negative pressure secondary water system and water inlet
The attachment structure schematic diagram of device；
Fig. 3 is the energy-saving type purification of water quality of the preferred embodiment of the utility model one without negative pressure secondary water system operation one
The transmembrane pressure changing trend diagram in week.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with technology of the present utility model is belonged to
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all of combination of one or more related Listed Items.
As shown in figure 1, present embodiment discloses a kind of energy-saving type purification of water quality without negative pressure secondary water system 100, should
Energy-saving type purification of water quality includes that water feed apparatus 110, low pressure ultrafiltration film purifying device 120, nothing are negative without negative pressure secondary water system 100
Pressure water supply installation 130, user's pipe network 140 and control module 150.Wherein, the water feed apparatus 110 have at least one water inlet pipe
111, one end of the water inlet pipe 111 is used to dock city planting ductwork.Above-mentioned low pressure ultrafiltration film purifying device 120 connects above-mentioned water inlet dress
110 are put, for current to be carried out with filtration, purification, above-mentioned non-negative pressure method of water supply device 130 connects above-mentioned low pressure ultrafiltration film purifying device
120, and be connected with above-mentioned user's pipe network 140, for will be supplied by the cleaned current of above-mentioned low pressure ultrafiltration film purifying device 120
To user's pipe network.Above-mentioned control module 150 is supplied with above-mentioned water feed apparatus 110, low pressure ultrafiltration film purifying device 120 and without negative pressure
Water installations 130 are electrically connected with, for controlling above-mentioned water feed apparatus 110, low pressure ultrafiltration film purifying device 120 and non-negative pressure method of water supply to fill
130 are put to be operated.
Specifically, above-mentioned water feed apparatus 110 also include being arranged at the water intaking valve 112 of the one end of above-mentioned water inlet pipe 111, are arranged on
Water conservancy diversion preventer 117 in the water inlet pipe 111, the current for preventing from entering above-mentioned water inlet pipe 111 flow backwards, and are arranged on this
Filter 113 in water inlet pipe 111, the filter 113 is mainly used in the larger particles impurity that filtering enters in water inlet pipe water, uses
In the transmissometer 114 of the turbidity of the water in detection water inlet pipe 111, the flowmeter for detecting the water-carrying capacity in water inlet pipe 111
115, pressure sensor 116 and sample tap for detecting the water pressure in water inlet pipe 111.
Above-mentioned low pressure ultrafiltration film purifying device 120 includes several low pressure ultrafiltration membrane stacks 121, each low pressure ultrafiltration membrane stack
121 have at least one hydrophilic ultrafiltration membrane component 1211.
Specifically, above-mentioned hydrophilic ultrafiltration membrane component 1211 includes PVC hollow fiber membrane and/or Kynoar
Hollow-fibre membrane, is somebody's turn to do the membrane aperture that included PVC hollow fiber membrane and/or Pvdf Microporous Hollow Fiber Membrane in 0.01-
Between 0.1 micron, transmembrane pressure is between 2-30KPa.
Low pressure ultrafiltration film purifying device of the energy-saving type purification of water quality without negative pressure secondary water system 100 in present embodiment
120 each low pressure ultrafiltration membrane stack 121 includes being connected to the water inlet end 122 of above-mentioned water inlet pipe 110 and is connected to above-mentioned negative pressure confession
The water side 123 of water installations 130, the water inlet end 122 is used to for the current of above-mentioned water inlet pipe to cause above-mentioned hydrophilic ultrafiltration membrane group
Part 1211, the water filtered by the hydrophilic ultrafiltration membrane component 1211 causes above-mentioned negative pressure water supply and fills by above-mentioned water side 123
In putting.
Above-mentioned low pressure ultrafiltration film purifying device 120 also has the forward direction for cleaning the hydrophilic ultrafiltration membrane component 1211
Cleaning unit, specifically, the positive cleaning unit includes the first blow-off pipe 124, and first blow-off pipe 124 is connected to above-mentioned low pressure
The water side 122 of ultrafiltration membrane stack 121, can also set the first blowdown control valve 1241 on first blow-off pipe 124, and this first
Blowdown control valve 1241 is used to be controlled by the control module the opened closing of first blow-off pipe, when the first blowdown control
When valve processed 1241 is opened, above-mentioned first blow-off pipe 124 is in connected state, by the water of above-mentioned hydrophilic ultrafiltration membrane component 1211
Stream is discharged from above-mentioned first blow-off pipe 124, to reach the purpose of cleaning hydrophilic ultrafiltration membrane component 1211.
Above-mentioned low pressure ultrafiltration film purifying device 120 also has the mutual punching for cleaning the hydrophilic ultrafiltration membrane component 1211
Cleaning unit, specifically, this mutually rushes cleaning unit with a cleaning connecting tube 125, and the cleaning connecting tube 125 is connected to two institutes
State between low pressure ultrafiltration membrane stack 121, it is mainly used in flowing out the water side 123 of one of them low pressure ultrafiltration membrane stack 121
Current cause the water side 123 of another low pressure ultrafiltration membrane stack 121, make to enter the current of another low pressure ultrafiltration membrane stack 121
Hydrophilic ultrafiltration membrane component 1211 to the low pressure ultrafiltration membrane stack 121 carries out reverse cleaning.
Specifically, the water inlet end 122 in above-mentioned low pressure ultrafiltration membrane stack 121 is additionally provided with the second blow-off pipe 126, the second row
Dirty pipe 126 is mainly used in, by the above-mentioned current for entering another low pressure ultrafiltration membrane stack 121 by cleaning connecting tube 125, being pointed to this
After the low pressure ultrafiltration membrane module 1211 of low pressure ultrafiltration membrane stack 121 completes cleaning, discharged by second blow-off pipe 126, this
On two blow-off pipes 126, the second blowdown control valve 1261 is also provided with, second blowdown control valve 1261 is mainly used in control
The break-make of second blow-off pipe 126.
The water inlet end 122 of above-mentioned low pressure ultrafiltration membrane stack 121 can also have water inlet control valve 1221, the water inlet control valve
1221 break-makes for being mainly used in controlling the water inlet end 122.Specifically, the above-mentioned cleaning unit that mutually rushes is using a low pressure ultrafiltration film
When heap 121 is cleaned to another low pressure ultrafiltration membrane stack 121, in order to more the course of work for mutually rushing cleaning unit is talked clearly
Chu, is temporarily defined as the first low pressure ultrafiltration membrane stack and the second low pressure ultrafiltration membrane stack by above-mentioned two low pressure ultrafiltration membrane stack 121, cleaning
Connecting tube 125 is connected between the first low pressure ultrafiltration membrane stack and the second low pressure ultrafiltration membrane stack, if staff is intended to above-mentioned second
Low pressure ultrafiltration membrane stack is cleaned, and just can be opened the water inlet control valve 1221 of above-mentioned first low pressure ultrafiltration membrane stack water inlet end, will
The water inlet control valve 1221 of the second low pressure ultrafiltration membrane stack water inlet end is closed, meanwhile, by above-mentioned first low pressure ultrafiltration membrane stack second row
The second blowdown control valve of dirty pipe 126 is closed, and the second blowdown control valve of second the second blow-off pipe of low pressure ultrafiltration membrane stack 126 is beaten
Open, so, current enter from the water inlet end of above-mentioned first low pressure ultrafiltration membrane stack, low from second by above-mentioned cleaning connecting tube 125
The hydrophilic ultrafiltration membrane component for pressing the water side of ultrafiltration membrane stack to enter in the second ultrafiltration membrane stack, and then heap the second ultrafiltration membrane stack is carried out
Reverse cleaning, from the current that the water inlet end of the second low pressure ultrafiltration membrane stack flows out, by being connected to entering for the second low pressure ultrafiltration membrane stack
The blowdown of second blow-off pipe 126 of water end (W.E.).
If staff is intended to clean above-mentioned first low pressure ultrafiltration membrane stack, just can be by above-mentioned second low pressure ultrafiltration membrane stack
The water inlet control valve 1221 of water inlet end is opened, and the water inlet control valve 1221 of the first low pressure ultrafiltration membrane stack water inlet end is closed, meanwhile,
The second blowdown control valve of the second blow-off pipe 126 of above-mentioned second low pressure ultrafiltration membrane stack is closed, by the first low pressure ultrafiltration membrane stack
The second blowdown control valve of the second blow-off pipe 126 is opened, the process and above-mentioned heap the second low pressure ultrafiltration membrane stack of specific current cleaning
Cleaning process is carried out to be similar to, therefore, the utility model will not be repeated here.
In order to coordinate it is above-mentioned mutually rush cleaning unit and can be cleaned each low pressure ultrafiltration membrane stack, usually, the low pressure
The quantity of ultrafiltration membrane stack is even number.
Above-mentioned low pressure ultrafiltration film purifying device 120 also has water outlet main valve 127, is filled when above-mentioned low pressure ultrafiltration film is purified
When putting 120 in cleaning state, the water outlet main valve 127 is closed, to prevent the sewage of cleaning by non-negative pressure method of water supply
Device 130 enters access customer pipe network 140.
Above-mentioned control module 150 can be PLC (Programmable Logic Controller) control device, and above-mentioned control valve is controlled by the PLC
Device control processed, and then PLC control devices control low pressure ultrafiltration film purifying device 120 carries out heap current filtration, or to certainly
The hydrophilic ultrafiltration membrane component of the low pressure ultrafiltration membrane stack of body carries out the cleaning of different mode.
Illustrated with embodiment 1 below：
Embodiment 1
The present embodiment is using above-mentioned energy-saving type purification of water quality without negative pressure secondary water system, treatment water 4m3/h；Along when rushing
Between 20-30s, mutually rush time 20-30s, flushing cycle 1d/ times；Milipore filter uses above-described hydrophily ultrafiltration, and membrane aperture is
0.01 micron, membrane material be PVC alloys, the interior transmembrane pressure situation of change of system operation one week as shown in figure 3, under ruuning situation its
Transmembrane pressure is basically stable at 8-10KPa, and table 1 is to supply water to be without negative pressure secondary using the energy-saving type purification of water quality of present embodiment
The Inlet and outlet water matter contrast table of system 100：
Table 1
From the disclosure of that of above-described embodiment 1, above-mentioned energy-saving type purification of water quality is without negative pressure secondary water system profit
With the water-wet behavior of above-mentioned hydrophilic ultrafiltration membrane component 1211, make the current for entering the low pressure ultrafiltration film purifying device 120 need not
Pressurization just can be filtered by the hydrophilic ultrafiltration membrane component 1211, and so, the current of city planting ductwork are by above-mentioned water inlet pipe 111
Low pressure ultrafiltration film purifying device is directly entered, municipal ductwork pressure is made full use of, without separately adding booster pump, energy consumption is reduced, entered
And reduce cost.
And, above-mentioned low pressure ultrafiltration film purifying device need not install backwashing pump, but use two groups of low pressure ultrafiltration membrane stacks 121
Mutually punching cleaning and single group low pressure ultrafiltration membrane stack 121 simplify whole energy-saving type purification of water quality without negative pressure two along the pattern of punching cleaning
The device of secondary water system.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of energy-saving type purification of water quality is without negative pressure secondary water system, it is characterised in that including：
Water feed apparatus, with water inlet pipe, one end of the water inlet pipe is used to dock city planting ductwork；
The low pressure ultrafiltration film purifying device of the water inlet pipe other end is connected, the low pressure ultrafiltration film purifying device is in including some
The low pressure ultrafiltration membrane stack being arranged in parallel, described each low pressure ultrafiltration membrane stack has hydrophilic ultrafiltration membrane component；
It is connected to the non-negative pressure method of water supply device of the low pressure ultrafiltration film purifying device；
It is connected to user's pipe network of the non-negative pressure method of water supply device；
And control module, for controlling the water feed apparatus, low pressure ultrafiltration film purifying device and non-negative pressure method of water supply device to work.
2. energy-saving type purification of water quality according to claim 1 is without negative pressure secondary water system, it is characterised in that described hydrophilic
Property hyperfiltration membrane assembly include PVC hollow fiber membrane or Pvdf Microporous Hollow Fiber Membrane.
3. energy-saving type purification of water quality according to claim 2 is without negative pressure secondary water system, it is characterised in that polyvinyl chloride
Between 0.01-0.1 microns, transmembrane pressure is in 2-30KPa for the membrane aperture of hollow-fibre membrane or Pvdf Microporous Hollow Fiber Membrane
Between.
4. energy-saving type purification of water quality according to claim 1 is without negative pressure secondary water system, it is characterised in that described each
Low pressure ultrafiltration membrane stack also includes：
The water inlet end of the water inlet pipe is connected to, for the current of the water inlet pipe to be caused into the hydrophilic ultrafiltration membrane component；
The water side of the negative pressure water supply device is connected to, for institute will to be caused by the current of the hydrophilic ultrafiltration membrane component
State negative pressure water supply device.
5. energy-saving type purification of water quality according to claim 4 is without negative pressure secondary water system, it is characterised in that the energy-conservation
Formula purification of water quality also includes the first blow-off pipe of the water side for being connected to the low pressure ultrafiltration membrane stack without negative pressure secondary water system,
Current discharge for the hydrophilic ultrafiltration membrane component will to be cleaned.
6. energy-saving type purification of water quality according to claim 5 is without negative pressure secondary water system, it is characterised in that energy-saving type water
Matter purification also includes without negative pressure secondary water system：
First blowdown controls valve, for controlling opening or closing for first blow-off pipe by the control module.
7. energy-saving type purification of water quality according to claim 4 is without negative pressure secondary water system, it is characterised in that the low pressure
With cleaning unit is rushed for cleaning the mutual of the hydrophilic ultrafiltration membrane component, list is cleaned in the mutual punching to ultrafiltration film purifying device
Unit includes：
The cleaning connecting tube between two low pressure ultrafiltration membrane stacks is connected to, for by one of them low pressure ultrafiltration membrane stack
The current of water side outflow cause the water side of another low pressure ultrafiltration membrane stack, make to enter another low pressure ultrafiltration membrane stack
Current reverse cleaning is carried out to the hydrophilic ultrafiltration membrane component of the low pressure ultrafiltration membrane stack；
Second blow-off pipe of the water inlet end of another low pressure ultrafiltration membrane stack is set, for by going out by the low pressure ultrafiltration membrane stack
The current that water end (W.E.) enters the hydrophilic ultrafiltration membrane component are discharged.
8. energy-saving type purification of water quality according to claim 7 is without negative pressure secondary water system, it is characterised in that the mutual punching
Cleaning unit also includes：
Second blowdown controls valve, opening and closing for controlling second blow-off pipe by the control module.
9. energy-saving type purification of water quality according to claim 1 is without negative pressure secondary water system, it is characterised in that the water inlet
Device includes：
It is arranged at the water intaking valve of described water inlet pipe one end；
Backflow preventer, the aqueous reflux for preventing from entering water inlet pipe；
Filter, the impurity for filtering the water for entering water inlet pipe；
Transmissometer, the turbidity for detecting the water in water inlet pipe；
Flowmeter, the flow for detecting the water in water inlet pipe；
Pressure sensor, the pressure for detecting the water in water inlet pipe；
Sample tap.
10. energy-saving type purification of water quality according to claim 3 is without negative pressure secondary water system, it is characterised in that the control
Molding block includes PLC control devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621227437.XU CN206289690U (en) | 2016-11-15 | 2016-11-15 | Energy-saving type purification of water quality is without negative pressure secondary water system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621227437.XU CN206289690U (en) | 2016-11-15 | 2016-11-15 | Energy-saving type purification of water quality is without negative pressure secondary water system |
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| CN206289690U true CN206289690U (en) | 2017-06-30 |
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ID=59099630
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625431A (en) * | 2018-06-14 | 2018-10-09 | 苏州苏泵水务工程安装有限公司 | Intelligent power saving frequency-conversion water supply system and its control method |
-
2016
- 2016-11-15 CN CN201621227437.XU patent/CN206289690U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625431A (en) * | 2018-06-14 | 2018-10-09 | 苏州苏泵水务工程安装有限公司 | Intelligent power saving frequency-conversion water supply system and its control method |
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