CN106638792B - Small flow energy-saving controller and secondary water-supply method applied to secondary water-supply equipment - Google Patents
Small flow energy-saving controller and secondary water-supply method applied to secondary water-supply equipment Download PDFInfo
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- CN106638792B CN106638792B CN201610823167.7A CN201610823167A CN106638792B CN 106638792 B CN106638792 B CN 106638792B CN 201610823167 A CN201610823167 A CN 201610823167A CN 106638792 B CN106638792 B CN 106638792B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000005086 pumping Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 238000009825 accumulation Methods 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 14
- 230000005059 dormancy Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 230000002618 waking effect Effects 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
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
- E03B11/16—Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices
-
- 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
-
- 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
- E03B7/077—Arrangement of backflow preventing devices
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention provides a kind of small flow energy-saving controllers applied to secondary water-supply equipment, comprising: check-valves k2, pressure reducing valve k1, motor-driven valve k3 and second pressure sensor k4；The check-valves k2 is arranged between the auxiliary pump water outlet side and the water inlet end of diaphragm-type air-compressed tank of pressurization pumping array water outlet, and towards the direction of diaphragm-type air-compressed tank and connection；The pressure reducing valve k1 is arranged between the water outlet of diaphragm-type air-compressed tank and service pipe；The motor-driven valve k3 is arranged between the water outlet and service pipe of auxiliary pump；When the auxiliary pump is with the first water outlet hydraulic pressure water outlet, motor-driven valve k3 is opened；When the auxiliary pump is with the second water outlet hydraulic pressure water outlet, motor-driven valve k3 is closed；When air pressure in the second pressure sensor k4 detection diaphragm-type air-compressed tank increases to the second water outlet hydraulic pressure, the auxiliary pump suspend mode.The present invention also provides a kind of secondary water-supply methods.
Description
Technical field
The present invention relates to a kind of method of supplying water and supply equipments.
Background technique
Equipment, will by the detecting outlet pressure of second pressure sensor 2 as shown in Figure 1: for general supply equipment Introduction on Principle
Detecting value and setting value are compared, and are calculated and are needed increased pressure on original pressure-based of import pipe network, are determined and are increased
Press pump investment platform tricks and frequency converter output frequency are to chase after patch user with water flow pressure curve realization constant pressure water supply.Pass through flow
Sensor 3 detects user's water flow, and when the flow that user needs is within the scope of the auxiliary pump metered flow of small flow, system is by small
The auxiliary pump operation constant pressure water supply of flow.It is pressurized the pump operation initial stage, system also gives diaphragm-type air-compressed tank 1 while water supply to user
Energy (moisturizing accumulation of energy) is supplemented until gas pressure is equal to system constant-pressure pressure in diaphragm-type air-compressed tank 1.Pass through flow sensor 3
Water consumption is detected, the work of small flow termination of pumping suspend mode is automatically switched to when water consumption 10% lower than the auxiliary specified water supply flow of pump
State, the wholly off operation of booster pump change into suspend mode and maintain small limited flow to drop by the diaphragm-type air-compressed tank 1 Jing Guo accumulation of energy
Pressure supplies water.As pipe network pressure of supply water 1bar lower than setting value or so, system, which is waken up, exits suspend mode, is supplied by booster pump constant pressure
Water.So recycle the requirement for meeting user's pressure and flow.
Diaphragm-type air-compressed tank 1-is made of the part such as tank body, diaphragm, water inlet and porting.Tank is divided by diaphragm
Lower two chambers, cavity of resorption water storage, epicoele preliminary filling are slightly below the inert gas for waking up pressure.Accumulation of energy storage can be played in water system
Water effect, when the extraneous water for being higher than Preliminary pressure-filled enters air pressure tank cavity of resorption, the gas for being sealed in epicoele in tank is compressed, according to
Boyle's law: under quantitative constant temperature, the volume of perfect gas and the pressure of gas are inversely proportional, and volume becomes after gas is compressed
Small pressure rise stops water inlet when gas pressure is consistent with the pressure of water in air pressure tank and is equal to setting value.When suspend mode, when
Gas pressure is greater than the pressure of water in air pressure tank when water pressure lowers, and gas expansion water is forced out at this time.Until pipe network is for hydraulic pressure
It (can be set) when power 1bar lower than setting value or so, system, which is waken up, exits suspend mode, by booster pump constant pressure water supply.
For the same diaphragm-type air-compressed tank, volume+water storage volume=diaphragm-type air-compressed tank total measurement (volume) of gas is mended
Hydraulic pressure is higher when water accumulation of energy, and the volume of gas is pressed smaller, then the volume of water storage is bigger, and the energy of savings is more, for
For the water discharged is supplied water in limited decompression when suspend mode, if the pressure that supply equipment wakes up is certain, the water of suspend mode is maintained
More, the time of suspend mode is longer.Dormancy time is long, then system reduces suspend mode pump startup number and runing time, reduces electricity
The consumption of energy.Realize the above-mentioned consumption for reducing electric energy, two critical issues must solve: first is that water when improving accumulation of energy water storage
Pressure, second is that the pressure of the high pressure water in diaphragm-type air-compressed tank to drop to it is consistent with the constant pressure setting value of user demand.
Summary of the invention
The main technical problem to be solved by the present invention is to provide a kind of secondary water-supply methods, are capable of increasing diaphragm pneumatic
The retention volume of tank achievees the purpose that energy saving to extend the dormancy time of booster pump.And the diaphragm-type air-compressed tank
Water outlet hydraulic pressure can be reduced to hydraulic pressure required for user.
Another technical problem to be solved by this invention is to provide a kind of small flow energy-saving controller, realizes above-mentioned control
Method.
In order to solve the above technical problems, the present invention provides a kind of small flow energy conservations applied to secondary water-supply equipment
Controller, characterized by comprising: check-valves k2, pressure reducing valve k1, motor-driven valve k3 and second pressure sensor k4；
The water inlet end of auxiliary the pump water outlet side and diaphragm-type air-compressed tank of pressurization pumping array water outlet is arranged in the check-valves k2
Between, and towards the direction of diaphragm-type air-compressed tank and connection；The pressure reducing valve k1 be arranged in the water outlet of diaphragm-type air-compressed tank with
Between service pipe；
The motor-driven valve k3 is arranged between the water outlet and service pipe of auxiliary pump；The auxiliary pump is gone out with the first water outlet hydraulic pressure
When water, motor-driven valve k3 is opened；When the auxiliary pump is with the second water outlet hydraulic pressure water outlet, motor-driven valve k3 is closed；
When air pressure in the second pressure sensor k4 detection diaphragm-type air-compressed tank increases to setting value, the auxiliary pump is stopped
It sleeps.
In a preferred embodiment: the second water outlet hydraulic pressure is up to the first 1.5-2 times for being discharged hydraulic pressure.
In a preferred embodiment: the pressurization pumping array includes the working barrel being connected in parallel and auxiliary pump.
In a preferred embodiment: being additionally provided with pressure sensor between pressurization pumping array and the service pipe and flow passes
Sensor.
In a preferred embodiment: high pressure water in the diaphragm-type air-compressed tank hydraulic pressure after pressure reducing valve k1 is down to first
It is discharged hydraulic pressure
The present invention provides a kind of secondary water-supply method, the secondary water-supply equipment is equipped with a flow threshold,
When user's water consumption is higher than the threshold value, the water outlet of the auxiliary pump in secondary water-supply equipment is connected to service pipe,
In the auxiliary pump task period, auxiliary pump carries out constant pressure water outlet to service pipe with the first water outlet hydraulic pressure；When user's water consumption is lower than the threshold
When value, the connection of auxiliary pump and service pipe is disconnected；Then, it is described it is auxiliary pump (write originally can allow people think be different it is auxiliary
Pump) working frequency be increased to power frequency with the second water outlet hydraulic pressure high pressure water outlet, which is all delivered to diaphragm-type air-compressed tank
In, increase the hydraulic pressure in diaphragm-type air-compressed tank, gas reduces volume in compressed septum formula air pressure tank, increases diaphragm-type air-compressed tank
Accumulation of energy retention volume；
When the hydraulic pressure in diaphragm-type air-compressed tank is equal with setting value, the booster pump enters dormant state, by diaphragm type
Air pressure tank supplies water to service pipe.
In a preferred embodiment: the high pressure water in the diaphragm-type air-compressed tank is decompressed to the first water outlet by pressure reducing valve k1
It is delivered in service pipe after hydraulic pressure.
In a preferred embodiment: as the 1bar lower than the first water outlet hydraulic pressure of the hydraulic pressure in service pipe, the booster pump
Again constant pressure water outlet is carried out with the first water outlet hydraulic pressure to service pipe.
In a preferred embodiment: the 10% of specified water supply is pumped supplemented by the flow threshold.
In a preferred embodiment: the second water outlet hydraulic pressure is 1.5-2 times of the first water outlet hydraulic pressure.
Compared to the prior art, technical solution of the present invention have it is following the utility model has the advantages that
A kind of small flow energy-saving controller provided by the invention, the high pressure for enabling to diaphragm-type air-compressed tank can be provided
Suspend mode is original several times with water capacity.Assuming that the flow of user is balanced, then the dormancy time of pressurization pumping array is former
The several times come, can reduce the booster pump number of starts, because operational efficiency is very low in small flow and starting for booster pump, small flow energy conservation
Controller shortens small flow runing time and reduces suspend mode pump startup number, therefore significantly reduces disappearing for equipment electric energy
Consumption.Actual motion experiments have shown that, increase small flow energy-saving controller can make supply equipment overall efficiency improve 10% or more.Together
When the noise that generates when decreasing night frequent starting.
Detailed description of the invention
Fig. 1 is the structure chart of secondary water-supply equipment in the prior art；
Fig. 2 is the structure chart of secondary water-supply equipment in the preferred embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, technical scheme is described further.
With reference to Fig. 2, a kind of secondary water-supply equipment, comprising: pressurization pumping array, diaphragm-type air-compressed tank 1 and the energy conservation of small flow
Controller；In the present embodiment, the pressurization pumping array includes the working barrel being connected in parallel and auxiliary pump.
The small flow energy-saving controller includes check-valves k2, pressure reducing valve k1, motor-driven valve k3 and second pressure sensor k4；
The check-valves k2 is arranged between the water outlet side of auxiliary pump and the water inlet end of diaphragm-type air-compressed tank 1 of pressurization pumping array water outlet,
And it is connected to towards the direction of diaphragm-type air-compressed tank 1；Water outlet and the user's water of diaphragm-type air-compressed tank 1 is arranged in the pressure reducing valve k1
Between pipe；
The motor-driven valve k3 is arranged between the water outlet and service pipe of auxiliary pump；The auxiliary pump is gone out with the first water outlet hydraulic pressure
When water, motor-driven valve k3 is opened；When the auxiliary pump is with the second water outlet hydraulic pressure water outlet, motor-driven valve k3 is closed.The second pressure
Sensor k4 is used to detect the pressure value of diaphragm-type air-compressed tank 1.
First pressure sensor 2 and flow sensor 3 are additionally provided between pressurization pumping array and the service pipe.
Above-mentioned secondary water-supply equipment it is as described below for Water flow-path:
1. flowing into the water flow pressure of service pipe by the detecting of first pressure sensor 2, detecting value and setting value are carried out
Compare, calculate and need increased pressure on original pressure-based of import pipe network, determines and need to put into pressurization pumping array
The number of units and frequency converter output frequency (being reacted to booster pump is revolving speed) of pump, to realize that the water outlet of pressurization pumping array chases after patch user
It is realized with water flow pressure curve and constant pressure water supply is carried out with the first water outlet hydraulic pressure.User's water flow is detected by flow sensor 3
Amount, in the auxiliary pump task period, auxiliary pump or working barrel and the parallel connection of auxiliary pump carry out constant pressure water outlet to service pipe with the first water outlet hydraulic pressure,
When the flow that user needs is within the scope of auxiliary pump metered flow, system is discharged the constant pressure water supply of hydraulic pressure by auxiliary pump operation first,
Remaining booster pump is standby.
2. booster pump with first water outlet hydraulic pressure carry out constant pressure water supply stage, it is auxiliary pump to user supply water while also to every
1 water storage of membrane type air pressure tank, until diaphragm-type air-compressed tank 1 in air pressure increase to first water outlet hydraulic pressure it is identical.
3. when flow sensor 3, which detects the water consumption in service pipe, is lower than the 10% of the auxiliary specified water supply flow of pump
(as needed can also be with other ratios of sets itself), control system close motor-driven valve k3, then, the auxiliary water flow for pumping out water end (W.E.) without
Method is flow in service pipe.At this point, auxiliary pump rises to maximum operating frequency power frequency operation, flow is small when being worked using centrifugal pump constant frequency
The then high curve characteristic of lift, it is possible to provide the water outlet of the second water outlet hydraulic pressure, since the second water outlet hydraulic pressure is about the first water outlet water
1.5-2 times of pressure, therefore the water of the second water outlet hydraulic pressure continues through the cavity of resorption that check-valves k2 flows into diaphragm-type air-compressed tank 1, continues
Gas in compressed septum formula air pressure tank 1.Reach second when pressure sensor k4 detects gas pressure in diaphragm-type air-compressed tank
When being discharged hydraulic pressure, auxiliary pump is also switched to termination of pumping dormant state automatically by system.
4. at this point, the water in service pipe is supplied by diaphragm-type air-compressed tank 1 completely.High pressure in diaphragm-type air-compressed tank 1
Water is decompressed to the first water outlet hydraulic pressure by pressure reducing valve k1, to realize the purpose of constant pressure water supply always.When in diaphragm-type air-compressed tank 1
High pressure water be finished, the hydraulic pressure in service pipe is begun to decline, when second pressure sensor 2 detects the water in service pipe
(other values equally can be separately set) when low 1bar of pressure ratio setting value or so, and control system, which is waken up, exits suspend mode, by booster pump
Array restores the first water outlet hydraulic pressure constant pressure water supply, and motor-driven valve k3 is opened again at this time.So circulation meet user to pressure and
The requirement of flow.
For the same diaphragm-type air-compressed tank 1, after increasing small flow energy-saving controller, high pressure that when suspend mode can be provided
Power water capacity can reach 5 times of water capacity when not increasing small flow energy-saving controller or more.Such as: one 100 liters of total measurement (volume)
Diaphragm-type air-compressed tank, gas initial pressure 9bar, the first water outlet hydraulic pressure is 10bar, the first water outlet water after booster pump is in suspend mode
It is waken up when pressure drop is to 9bar, is calculated by Boyle's law P1V1=P2V2: not increasing small flow energy-saving controller Shi Suoneng and mention
For suspend mode water capacity be 10 liters；When increasing small flow energy-saving controller, the second water outlet hydraulic pressure can reach 20bar, accordingly
Suspend mode is increased to 55 liters with water capacity, it is clear that after increasing small flow energy-saving controller, the high pressure suspend mode water capacity that can be provided
Product is original 5.5 times.Assuming that the flow of user is balanced, then the dormancy time of pressurization pumping array is original 5.5 times, it can
Pressurization pumping array is reduced to start 4.5 times, because operational efficiency is very low in small flow and starting for booster pump, small flow energy-saving controller
It shortens small flow runing time and reduces suspend mode pump startup number, therefore significantly reduce the consumption of equipment electric energy.It is practical
Operation test shows that increasing small flow energy-saving controller can make the overall efficiency of supply equipment improve 10% or more.Also subtract simultaneously
The noise generated when having lacked night frequent starting.
The invention is not limited to specific embodiments above-mentioned.Above-described embodiment should not be considered as limiting model of the invention
It encloses.Those skilled in the art can modify and change while reading and understanding aforementioned detailed description.Specifically
Protection scope should be subject to claims.
Claims (10)
1. a kind of small flow energy-saving controller applied to secondary water-supply equipment, characterized by comprising: check-valves k2, pressure reducing valve
K1, motor-driven valve k3 and second pressure sensor k4；
The check-valves k2 is arranged between the auxiliary pump water outlet side and the water inlet end of diaphragm-type air-compressed tank of pressurization pumping array water outlet,
And towards the direction of diaphragm-type air-compressed tank and connection；Water outlet and the user's water of diaphragm-type air-compressed tank is arranged in the pressure reducing valve k1
Between pipe；
The motor-driven valve k3 is arranged between the water outlet and service pipe of auxiliary pump；The auxiliary pump is with the first water outlet hydraulic pressure water outlet
When, motor-driven valve k3 is opened；When the auxiliary pump is with the second water outlet hydraulic pressure water outlet, motor-driven valve k3 is closed；Wherein, the second water outlet water
Pressure is greater than the first water outlet hydraulic pressure；
When air pressure in the second pressure sensor k4 detection diaphragm-type air-compressed tank increases to setting value, the auxiliary pump suspend mode.
2. a kind of small flow energy-saving controller applied to secondary water-supply equipment according to claim 1, it is characterised in that:
The second water outlet hydraulic pressure is up to the first 1.5-2 times for being discharged hydraulic pressure.
3. a kind of small flow energy-saving controller applied to secondary water-supply equipment according to claim 1, it is characterised in that:
The pressurization pumping array includes the working barrel being connected in parallel and auxiliary pump.
4. a kind of small flow energy-saving controller applied to secondary water-supply equipment according to claim 1, it is characterised in that:
Pressure sensor and flow sensor are additionally provided between pressurization pumping array and the service pipe.
5. a kind of small flow energy-saving controller applied to secondary water-supply equipment according to claim 4, it is characterised in that:
High pressure water in the diaphragm-type air-compressed tank hydraulic pressure after pressure reducing valve k1 is down to the first water outlet hydraulic pressure
6. a kind of secondary water-supply method, it is characterised in that: secondary water-supply equipment is equipped with a flow threshold, to avoid the small stream of booster pump
Fallback is measured, the 10% of metered flow is pumped supplemented by the flow threshold is general；
When user's water consumption is higher than the threshold value, the water outlet of the auxiliary pump in secondary water-supply equipment is connected to service pipe, auxiliary
Pump task period, auxiliary pump carry out constant pressure water outlet to service pipe with the first water outlet hydraulic pressure；When user's water consumption is lower than the threshold value,
The connection of auxiliary pump and service pipe is disconnected；Then, it is high with the second water outlet hydraulic pressure to be increased to power frequency for the working frequency of the auxiliary pump
Water is extruded, which is all delivered in diaphragm-type air-compressed tank, increases the hydraulic pressure in diaphragm-type air-compressed tank, compressed septum formula gas
It presses gas in tank to reduce volume, increases the accumulation of energy retention volume of diaphragm-type air-compressed tank；
When the hydraulic pressure in diaphragm-type air-compressed tank is equal with setting value, the booster pump enters dormant state, by diaphragm pneumatic
Tank supplies water to service pipe.
7. a kind of secondary water-supply method according to claim 6, it is characterised in that: the high pressure in the diaphragm-type air-compressed tank
Water is delivered in service pipe after being decompressed to the first water outlet hydraulic pressure by pressure reducing valve.
8. a kind of secondary water-supply method according to claim 6, it is characterised in that: when the hydraulic pressure in service pipe is than first
When being discharged the low 1bar of hydraulic pressure, the booster pump carries out constant pressure water outlet to service pipe again with the first water outlet hydraulic pressure.
9. a kind of secondary water-supply method according to claim 6, it is characterised in that: pump specified confession supplemented by the flow threshold
The 10% of water.
10. a kind of secondary water-supply method according to claim 6, it is characterised in that: the second water outlet hydraulic pressure is first
It is discharged 1.5-2 times of hydraulic pressure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823167.7A CN106638792B (en) | 2016-09-14 | 2016-09-14 | Small flow energy-saving controller and secondary water-supply method applied to secondary water-supply equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823167.7A CN106638792B (en) | 2016-09-14 | 2016-09-14 | Small flow energy-saving controller and secondary water-supply method applied to secondary water-supply equipment |
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| CN106638792A CN106638792A (en) | 2017-05-10 |
| CN106638792B true CN106638792B (en) | 2019-06-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109653304A (en) * | 2018-11-26 | 2019-04-19 | 安徽舜禹水务股份有限公司 | A kind of auxiliary pump start-up and shut-down control method of flow auxiliary control secondary water-supply |
| CN112482499B (en) * | 2020-12-04 | 2022-03-01 | 平顶山自来水二次供水有限公司 | Secondary water supply water pressure early warning governing system |
| CN114809200B (en) * | 2022-06-14 | 2023-01-24 | 南京科技职业学院 | Non-negative pressure water supply equipment and water supply method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003261966A (en) * | 2002-03-08 | 2003-09-19 | Hitachi Industrial Equipment Systems Co Ltd | Feed water equipment |
| CN202882025U (en) * | 2012-10-18 | 2013-04-17 | 上海凯泉泵业（集团）有限公司 | Air pressure water supply system |
| CN104846883A (en) * | 2014-10-28 | 2015-08-19 | 青岛万力科技有限公司 | Pot-type pressure-superposed water supply device with small-flow auxiliary pump for energy saving |
| CN206157805U (en) * | 2016-09-14 | 2017-05-10 | 厦门海源泵业有限公司 | Be applied to low discharge energy -saving control ware of secondary water supply equipment |
-
2016
- 2016-09-14 CN CN201610823167.7A patent/CN106638792B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003261966A (en) * | 2002-03-08 | 2003-09-19 | Hitachi Industrial Equipment Systems Co Ltd | Feed water equipment |
| CN202882025U (en) * | 2012-10-18 | 2013-04-17 | 上海凯泉泵业（集团）有限公司 | Air pressure water supply system |
| CN104846883A (en) * | 2014-10-28 | 2015-08-19 | 青岛万力科技有限公司 | Pot-type pressure-superposed water supply device with small-flow auxiliary pump for energy saving |
| CN206157805U (en) * | 2016-09-14 | 2017-05-10 | 厦门海源泵业有限公司 | Be applied to low discharge energy -saving control ware of secondary water supply equipment |
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| CN106638792A (en) | 2017-05-10 |
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Denomination of invention: Small flow energy-saving controller and secondary water supply method applied to secondary water supply equipment Granted publication date: 20190604 Pledgee: Agricultural Bank of China Limited by Share Ltd. Xiamen Tongan branch Pledgor: HAIYAN Pump Industry Co.,Ltd. Registration number: Y2024980010291 |