CN207812561U - Double tank body raising frequency pressurize non-negative pressure water-supply installations - Google Patents
Double tank body raising frequency pressurize non-negative pressure water-supply installations Download PDFInfo
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- CN207812561U CN207812561U CN201721756634.5U CN201721756634U CN207812561U CN 207812561 U CN207812561 U CN 207812561U CN 201721756634 U CN201721756634 U CN 201721756634U CN 207812561 U CN207812561 U CN 207812561U
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- 238000009434 installation Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000002775 capsule Substances 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 abstract description 3
- 230000003020 moisturizing effect Effects 0.000 description 10
- 238000009825 accumulation Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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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
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Abstract
The utility model is related to double tank body raising frequency pressurize non-negative pressure water-supply installations, including constant-pressure tank, variable frequency pump, it is discharged gathering tube, city planting ductwork, user's butt tube and user's pipe network, it further include pressure pan, residual quantity compensation pipe, waterpower controls electromagnetic relief pressure valve, small flow-compensated pipe, check-valves, waterpower solenoid valve, bypass check valve and bypass waterpower solenoid valve, pass through the technical program, realize that a pump is multi-purpose, pressure pan passes through built-in rubber capsule, it can carry out residual quantity compensation, the high pressure water saved in pressure pan, by waterpower control electromagnetic relief pressure valve decompression, carry out residual quantity compensation, it avoids generating the risk that negative pressure is shut down；When small flow status, pressurizer is served as, small flow pressure maintaining function is realized, avoids water pump frequent starting, greatly increase its compensation rate, ensure that equipment energy Life cycle safety and stability, energy-efficient operation.
Description
Technical field
The utility model is related to a kind of supply equipments, are set more particularly to a kind of double tank body raising frequency pressurize non-negative pressure method of water supply
It is standby.
Background technology
At present on the market without negative pressure secondary supply equipment, be equipped with a vacuum tank mostly, cooperation vacuum suppresser uses,
Since vacuum tank is a slack tank, work as water use peak, upper end carrys out water and is less than backend user water consumption, and vacuum suppresser acts,
Equipment downtime is alarmed, and the normal water demand of backend user is cannot be satisfied；When night small flow status, usually in the following manner
To realize that small flow supplies water：All supplying water by the inefficient guarantee of main pump frequency conversion, water pump low-frequency operation, efficiency is low, long-play,
It can cause that the motor feels hot, or even burn motor, be equipped with the auxiliary pump of small flow to solve, but still can have low-capacity pump operation effect
Rate is not high, and water pump frequent starting or the bored situation beaten reduce the service life of water pump, wastes electric energy；It is equipped with large-scale air pressure tank：Due to nothing
What negative pressure equipment was all made of is constant pressure water supply, and pressure difference variation in equipment rear end is little, and small flow pressure maintaining ability is very weak, needs to match
A standby prodigious air pressure tank could solve, and input cost is high, takes up a large area, and installation and debugging are difficult, later maintenance there is also
Many problems；And often equipment rear end be equipped with an air pressure tank, can only to equipment rear end carry out pressurize, cannot be to equipment before
End peak carrys out water shortage and carries out residual quantity compensation, and tank body purposes is single.
Manufacturer recognizes that voltage stabilizing tank volume, the limitation of water storage pressure start setting up compensation water pump, water pump operation
The frequency of 50HZ is dedicated for single vacuum tank high pressure moisturizing, improves water storage pressure and user terminal pressure difference value in tank body, increases high
Peak compensation rate improves small flow pressure maintaining ability, while significantly increasing production cost, increases the floor space of equipment.
Utility model content
In view of this, the main purpose of the utility model is to provide a kind of double tank body raising frequency pressurize non-negative pressure method of water supply to set
It is standby, by the technical program, pressure pan and compensation device are increased, on the basis with residual quantity compensation and small flow pressure maintaining
On, its compensation rate is greatly increased, is in particular in, while realizing that a pump is multi-purpose：I.e. the equipment water pump both can be in 0-
50HZ normal water supplies serve as main pump, and frequency converter raising frequency can be utilized to 60HZ, serve as high pressure small pump, give pressure pan moisturizing
Accumulation of energy, one tank of pressure pan are multi-purpose：By built-in rubber capsule, realize that air is separated with water.When peak, residual quantity compensation can be carried out,
The high pressure water of savings in pressure pan carries out residual quantity compensation by waterpower control electromagnetic relief pressure valve decompression, avoids generating negative pressure shutdown
Risk；When small flow status, pressurizer is served as, small flow pressure maintaining function is realized, avoids water pump frequent starting, influence user
It is tested with water body, reduces water pump service life, waste electric energy.Frequency converter is multi-purpose：Frequency converter both can control water under normal circumstances
The frequency or number of units of pump realize constant pressure water supply；Pressure pan moisturizing accumulation of energy can be given when with water ebb again.
In order to achieve the above object, the technical solution of the utility model is achieved in that a kind of double tank body raising frequency pressurizes
Non-negative pressure water-supply installation, including constant-pressure tank, variable frequency pump, water outlet gathering tube, city planting ductwork, user's butt tube and user's pipe network,
The input terminal of the constant-pressure tank is connected with city planting ductwork, and variable frequency pump input terminal is connected with constant-pressure tank output end, variable frequency pump
Output end is connected with water outlet gathering tube, and the both ends of user's butt tube are connected with water outlet gathering tube and user's pipe network respectively, further include
Pressure pan, residual quantity compensation pipe, waterpower control electromagnetic relief pressure valve, small flow-compensated pipe, check-valves, waterpower solenoid valve bypass non-return
Valve and bypass waterpower solenoid valve, residual quantity compensation pipe both ends are connected with pressure pan outlet and constant-pressure tank outlet respectively, in residual quantity
Waterpower control electromagnetic relief pressure valve is provided on compensation pipe, the small flow-compensated pipe both ends, which export and are discharged with pressure pan respectively, converges
Manifold is connected, and check-valves and waterpower solenoid valve is provided on small flow-compensated pipe, in small flow-compensated pipe upper check valve and water
Power solenoid valve is provided at both ends with bypass pipe, and bypass check valve and bypass waterpower solenoid valve are provided on bypass pipe.
Further include user network waterpower solenoid valve and user network waterpower control electromagnetic pressure-decreasing as further technical solution
Valve, the user network waterpower solenoid valve and user network waterpower control electromagnetic relief pressure valve are in parallel and are arranged on user's butt tube.
Further include air pressure tank as further technical solution, the air pressure jar setting is at user's butt tube rear portion.
Further include gathering tube outlet pressure sensor and air pressure tank mouth pressure sensor as further technical solution,
The gathering tube outlet pressure sensor and air pressure tank mouth pressure sensor are separately positioned on the corresponding position of user's butt tube
On.
As further technical solution, anti-backflow device and ductwork pressure sensor are provided on the city planting ductwork.
As further technical solution, the upper both ends of residual quantity compensation pipe are respectively arranged with pressure pan outlet pressure sensing
Device and constant-pressure tank outlet pressure sensor.
It is using the advantageous effect after above-mentioned technical proposal：A kind of double tank body raising frequency pressurize non-negative pressure water-supply installations, pass through
The technical program realizes that a pump is multi-purpose：I.e. the equipment water pump both can serve as main pump in 0-50HZ normal water supplies；It again can profit
With frequency converter raising frequency to 60HZ, high pressure small pump is served as, is stored to pressure pan moisturizing, a tank is more --- pressure pan passes through built-in rubber
Capsule realizes that air is separated with water, when peak, can carry out residual quantity compensation, the high pressure water of the interior savings of pressure pan is controlled by waterpower
Electromagnetic relief pressure valve depressurizes, and carries out residual quantity compensation, avoids generating the risk that negative pressure is shut down；When small flow status, pressurizer is served as,
It realizes small flow pressure maintaining function, avoids water pump frequent starting, influence user and tested with water body, reduce water pump service life, waste electricity
Can, frequency converter is multi-purpose, and frequency converter both can control the frequency or number of units of water pump under normal circumstances, realize constant pressure water supply；Again may be used
With when with water ebb, give pressure pan moisturizing accumulation of energy, this equipment on the basis of tradition is without negative pressure, increase double tank structures with
And corresponding compensation device, decompressor, stable-pressure device is compound to hold crush-cutting changer controller, and has fully excavated water pump raising frequency
Potential, a tank is multi-purpose, the multi-purpose inherent value of frequency conversion so that this equipment is on the basis with residual quantity compensation and small flow pressure maintaining
On, its compensation rate is greatly increased, ensure that equipment energy Life cycle safety and stability, energy-efficient operation.
Description of the drawings
Fig. 1 is the overall structure diagram of double tank body raising frequency pressurize non-negative pressure water-supply installations in the utility model.
In figure, 1 constant-pressure tank, 2 variable frequency pumps, 3 water outlet gathering tubes, 4 city planting ductworks, 5 user's butt tubes, 6 user's pipe networks, 7
Pressure pan, 8 residual quantity compensation pipe, 9 waterpower control electromagnetic relief pressure valve, 10 small flow-compensated pipes, 11 check-valves, 12 waterpower solenoid valves,
13 bypass check valves, 14 bypass waterpower solenoid valves, 15 bypass pipes, 16 user network waterpower solenoid valves, 17 user network waterpower control electricity
Magnetic pressure reducing valve, 18 air pressure tanks, 19 gathering tube outlet pressure sensors, 20 air pressure tank mouth pressure sensors, 21 anti-backflow devices, 22
Ductwork pressure sensor, 23 pressure pan outlet pressure sensors, 24 constant-pressure tank outlet pressure sensors.
Specific implementation mode
Specific embodiment in the utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, the utility model is related to double tank body raising frequency pressurize non-negative pressure water-supply installations, including constant-pressure tank 1 becomes
Frequency water pump 2, water outlet gathering tube 3, city planting ductwork 4, user's butt tube 5 and user's pipe network 6, the input terminal of the constant-pressure tank 1 and city
Political affairs pipe network 4 is connected, and 2 input terminal of variable frequency pump is connected with 1 output end of constant-pressure tank, 2 output end of variable frequency pump and water outlet gathering tube 3
It is connected, the both ends of user's butt tube are connected with water outlet gathering tube 3 and user's pipe network 6 respectively, further include pressure pan 7, residual quantity compensation
Pipe 8, waterpower control electromagnetic relief pressure valve 9, small flow-compensated pipe 10, check-valves 11, waterpower solenoid valve 12, bypass check valve 13 and side
Road waterpower solenoid valve 14,8 both ends of the residual quantity compensation pipe are connected with the outlet of pressure pan 7 and the outlet of constant-pressure tank 1, are mended in residual quantity respectively
It repays and is provided with waterpower control electromagnetic relief pressure valve 9 on pipe 8, small 10 both ends of flow-compensated pipe export and go out with pressure pan 7 respectively
Water gathering tube 3 is connected, and check-valves 11 and waterpower solenoid valve 12 is provided on small flow-compensated pipe 10, in small flow-compensated pipe 10
Upper check valve 11 and waterpower solenoid valve 12 are provided at both ends with bypass pipe 15, and 13 He of bypass check valve is provided on bypass pipe 15
Bypass waterpower solenoid valve 14.
Further include user network waterpower solenoid valve 16 and user network waterpower control electromagnetic relief pressure valve as further embodiment
17, the user network waterpower solenoid valve 16 and user network waterpower control electromagnetic relief pressure valve 17 are in parallel and are arranged in user's butt tube 5
On.
Further include air pressure tank 18 as further embodiment, the air pressure tank 18 is arranged at 5 rear portion of user's butt tube.
Further include gathering tube outlet pressure sensor 19 and air pressure tank mouth pressure sensor as further embodiment
20, the gathering tube outlet pressure sensor 19 and air pressure tank mouth pressure sensor 20 are separately positioned on the institute of user's butt tube 5
On corresponding position.
As further embodiment, anti-backflow device 21 and ductwork pressure sensor are provided on the city planting ductwork 4
22, anti-backflow device 21 prevents equipment aqueous reflux city planting ductwork 4, causes secondary pollution.
As further technical solution, both ends are respectively arranged with pressure pan outlet pressure biography on the residual quantity compensation pipe 8
Sensor 23 and constant-pressure tank outlet pressure sensor 24.
When the utility model at work：Variable frequency pump 2 is adjusted using frequency converter raising frequency, improves variable frequency pump 2 to pressure pan 7
The pressure of moisturizing increases the difference of pressure pan 7 inner storing water pressure and user demand water pressure.
When small flow pressure maintaining, when variable frequency pump 2 is stopped, pressure pan 7 directly passes through waterpower solenoid valve 12, check-valves
11, small flow-compensated pipe 10, water outlet gathering tube 3, waterpower control electromagnetic relief pressure valve 17, air pressure tank 18 is for 6 small flow of user's pipe network
Use water.
In water use peak, there is deficiency in water amount, and ductwork pressure sensor 22 detects pressure and is on the verge of minimum pressure service
When value, pressure pan 7 controls electromagnetic relief pressure valve 9 by waterpower, carries out residual quantity compensation to constant-pressure tank 1, is set on city planting ductwork at the same time
The anti-backflow device 21 set prevents equipment aqueous reflux city planting ductwork 4, causes secondary pollution.
Under normal circumstances, it is good to carry out water for 4 pressure of city planting ductwork and city planting ductwork 4, and 4 water of city planting ductwork reaches constant pressure
Tank 1, it is steady to reach 2 input terminal of variable frequency pump by the buffering current stabilization of constant-pressure tank 1, it pressurizes by variable frequency pump 2 and gives user's pipe network
6 supply water, and bypass waterpower solenoid valve 14 at this time and close, and waterpower controls electromagnetic relief pressure valve 9, and waterpower controls electromagnetic relief pressure valve 17 and closes,
User network waterpower solenoid valve 16 is opened.
When in water use peak, 4 pressure of city planting ductwork fluctuates, and in order to avoid generating negative pressure, pressure pan 7 can pass through
Waterpower controls the compensation of electromagnetic relief pressure valve 9 and arrives constant-pressure tank 1, makes up and carrys out water shortage, while bypassing the closing of waterpower solenoid valve 14, user
Waterpower solenoid valve 16 is kept it turning on, and user's waterpower controls electromagnetic relief pressure valve 17 and closes, and residual quantity compensation in peak is by waterpower control electricity
The decompression of magnetic pressure reducing valve 9 is supplied water, and is made up and is carried out water shortage, is effectively guaranteed for water steadying, is arranged on small flow-compensated pipe 10 other
Road check-valves 13, check-valves 11, waterpower solenoid valve 12, bypass waterpower solenoid valve 14, action when can be according to pressure avoid coming
The disturbance of water and moisturizing.
When night small flow water state, variable frequency pump 14 is in suspend mode off position, pressure pan 4, waterpower electromagnetism
Valve 11, check-valves 13, small flow-compensated pipe 10, water outlet gathering tube 3, user's butt tube 5, user network waterpower control electromagnetic relief pressure valve
17, user's butt tube 5, user's pipe network 6 form a working cell, carry out small flow pressure maintaining work.
The electromagnetic relief pressure valve 9 of waterpower control simultaneously is closed；Waterpower controls electromagnetic relief pressure valve 17 and opens, and waterpower solenoid valve 12 is beaten
It opens, bypass waterpower solenoid valve 14 is closed, and user's waterpower solenoid valve 16 closes effectively to avoid 2 low-frequency operation of variable frequency pump,
Or frequent starting, the service life of variable frequency pump 2 is effectively extended, and greatly save energy consumption.
By air pressure tank 18, it is possible to prevente effectively from 2 suspend mode of variable frequency pump needs to open pump again when the compensation of pressure pan 7 finishes
Existing time delay, caused by pressure oscillation, influence user and comfortably experience；Also has the function of protection water hammer simultaneously.Small stream
When measuring pressurize, by user network waterpower solenoid valve 16, the compound of the user network waterpower control composition of electromagnetic relief pressure valve 17 holds voltage-controlled system
Device can realize normal water supply, and from 2 raising frequency of variable frequency pump to when 7 moisturizing of pressure pan, the caliber of residual quantity compensation pipe 8 can suitably contract
Small, too big to avoid rate of water make-up, 2 shaft power of variable frequency pump is excessive, causes variable frequency pump 2 to surpass stream, or robbed with backend user pipe network
Water；From pressure pan 7 to user's pipe network small flow pressure maintaining, the small flow-compensated pipe 10 of process can suitably amplify, and it is small to meet user
Flow water demand.
When pressure pan outlet pressure sensor 23 detects that pressure is less than setting value in pressure pan 7, pressure in pressure pan 7
Drop to when cannot meet the water pressure demand of user's pipe network 6, variable frequency pump 2 starts, and starts raising frequency, gives pressure pan 7 all the way
Accumulation of energy moisturizing controls electromagnetic relief pressure valve 17 by user network waterpower all the way and opens, and user network waterpower solenoid valve 16 is closed, and user is given
6 moisturizing of pipe network, meanwhile, bypass waterpower solenoid valve 14 is opened, and waterpower controls electromagnetic relief pressure valve 9 and closes, by one end time, high pressure
When pressure reaches setting value in the perception pressure pan 7 of tank outlet pressure sensor 23, variable frequency pump 2 restores normal operating frequency, water
Power solenoid valve 12 is closed, and bypass waterpower solenoid valve 14 is closed, and waterpower controls electromagnetic relief pressure valve 17 and closes, and waterpower solenoid valve 16 is beaten
It opens, supplies water to user's pipe network 6, by gathering tube outlet pressure sensor 19, carry out constant pressure water supply, repeat foregoing work, herein
It is no longer repeated.
The above, the only preferable possible embodiments of the utility model, are not limited to the utility model
Protection domain.
Claims (6)
1. a kind of double tank body raising frequency pressurize non-negative pressure water-supply installations, including constant-pressure tank, variable frequency pump, water outlet gathering tube, municipal administration pipe
Net, user's butt tube and user's pipe network, the input terminal of the constant-pressure tank are connected with city planting ductwork, variable frequency pump input terminal and constant pressure
Tank output end is connected, and variable frequency pump output end is connected with water outlet gathering tube, and the both ends of user's butt tube are summarized with water outlet respectively
Pipe is connected with user's pipe network, which is characterized in that further includes pressure pan, residual quantity compensation pipe, waterpower control electromagnetic relief pressure valve, small flow
Compensation pipe, check-valves, waterpower solenoid valve, bypass check valve and bypass waterpower solenoid valve, residual quantity compensation pipe both ends respectively with
Pressure pan is exported to be connected with constant-pressure tank outlet, and being provided with waterpower on residual quantity compensation pipe controls electromagnetic relief pressure valve, the small flow
Compensation pipe both ends export and are discharged with pressure pan respectively gathering tube and are connected, and check-valves and waterpower are provided on small flow-compensated pipe
Solenoid valve is provided at both ends with bypass pipe in small flow-compensated pipe upper check valve and waterpower solenoid valve, is provided on bypass pipe
Bypass check valve and bypass waterpower solenoid valve.
2. double tank body raising frequency pressurize non-negative pressure water-supply installations according to claim 1, which is characterized in that further include user network
Waterpower solenoid valve and user network waterpower control electromagnetic relief pressure valve, and the user network waterpower solenoid valve and user network waterpower control electromagnetism
Pressure reducing valve, which is in parallel, to be arranged on user's butt tube.
3. double tank body raising frequency pressurize non-negative pressure water-supply installations according to claim 2, which is characterized in that further include air pressure
Tank, the air pressure jar setting is at user's butt tube rear portion.
4. double tank body raising frequency pressurize non-negative pressure water-supply installations according to claim 2, which is characterized in that further include gathering tube
Outlet pressure sensor and air pressure tank mouth pressure sensor, the gathering tube outlet pressure sensor and air pressure tank mouth pressure sensing
Device is separately positioned on the corresponding position of user's butt tube.
5. double tank body raising frequency pressurize non-negative pressure water-supply installations according to claim 1, which is characterized in that the city planting ductwork
On be provided with anti-backflow device and ductwork pressure sensor.
6. double tank body raising frequency pressurize non-negative pressure water-supply installations according to claim 1, which is characterized in that the residual quantity compensation
Both ends are respectively arranged with pressure pan outlet pressure sensor and constant-pressure tank outlet pressure sensor on pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721756634.5U CN207812561U (en) | 2017-12-15 | 2017-12-15 | Double tank body raising frequency pressurize non-negative pressure water-supply installations |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721756634.5U CN207812561U (en) | 2017-12-15 | 2017-12-15 | Double tank body raising frequency pressurize non-negative pressure water-supply installations |
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| CN207812561U true CN207812561U (en) | 2018-09-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930661A (en) * | 2017-12-15 | 2019-06-25 | 上海威派格智慧水务股份有限公司 | Double tank body raising frequency pressure maintaining non-negative pressure water-supply devices and its method of supplying water |
| CN110173021A (en) * | 2019-06-17 | 2019-08-27 | 上海威派格智慧水务股份有限公司 | A kind of frequency conversion pressurization dedicated pressurization energy storage equipment of supply equipment |
| CN110173023A (en) * | 2019-06-24 | 2019-08-27 | 上海威派格智慧水务股份有限公司 | A kind of three tank body stabilizing compensation non-negative pressure water-supply devices |
| CN110185093A (en) * | 2019-05-21 | 2019-08-30 | 上海威派格智慧水务股份有限公司 | A kind of double tank structure non-negative pressure method of water supply devices |
| CN110185095A (en) * | 2019-06-12 | 2019-08-30 | 辽宁中霖供水科技有限公司 | Three pot type wisdom cloud supply equipments |
| 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 |
| CN116290222A (en) * | 2022-12-15 | 2023-06-23 | 无锡康宇水处理设备有限公司 | Energy-saving environment-friendly permanent magnet variable frequency water supply equipment with steady flow compensation function |
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2017
- 2017-12-15 CN CN201721756634.5U patent/CN207812561U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930661A (en) * | 2017-12-15 | 2019-06-25 | 上海威派格智慧水务股份有限公司 | Double tank body raising frequency pressure maintaining non-negative pressure water-supply devices and its method of supplying water |
| CN110185093A (en) * | 2019-05-21 | 2019-08-30 | 上海威派格智慧水务股份有限公司 | A kind of double tank structure non-negative pressure method of water supply devices |
| CN110185095A (en) * | 2019-06-12 | 2019-08-30 | 辽宁中霖供水科技有限公司 | Three pot type wisdom cloud supply equipments |
| CN110185095B (en) * | 2019-06-12 | 2024-03-26 | 辽宁中霖供水科技有限公司 | Three-tank type wisdom high in clouds water supply equipment |
| CN110173021A (en) * | 2019-06-17 | 2019-08-27 | 上海威派格智慧水务股份有限公司 | A kind of frequency conversion pressurization dedicated pressurization energy storage equipment of supply equipment |
| CN110173023A (en) * | 2019-06-24 | 2019-08-27 | 上海威派格智慧水务股份有限公司 | A kind of three tank body stabilizing compensation non-negative pressure water-supply devices |
| CN110173023B (en) * | 2019-06-24 | 2024-07-09 | 上海威派格智慧水务股份有限公司 | Three-tank pressure-stabilizing compensation non-negative pressure water supply equipment |
| 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 |
| CN116290222A (en) * | 2022-12-15 | 2023-06-23 | 无锡康宇水处理设备有限公司 | Energy-saving environment-friendly permanent magnet variable frequency water supply equipment with steady flow compensation function |
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