CN106638792A - Small-flow energy-saving controller for secondary water supply equipment and secondary water supply method - Google Patents
Small-flow energy-saving controller for secondary water supply equipment and secondary water supply method Download PDFInfo
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- CN106638792A CN106638792A CN201610823167.7A CN201610823167A CN106638792A CN 106638792 A CN106638792 A CN 106638792A CN 201610823167 A CN201610823167 A CN 201610823167A CN 106638792 A CN106638792 A CN 106638792A
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- hydraulic pressure
- diaphragm
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005059 dormancy Effects 0.000 claims description 23
- 238000005086 pumping Methods 0.000 claims description 18
- 238000009825 accumulation Methods 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 14
- 238000004134 energy conservation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 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
- 238000005516 engineering process 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
- 239000008400 supply water Substances 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
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides a small-flow energy-saving controller for secondary water supply equipment. The small-flow energy-saving controller comprises a check valve k2, a pressure release valve k1, an electric valve k3 and a second pressure sensor k4. The check valve k2 is arranged between the water outlet side of an auxiliary pump located at the water outlet end of a boosting pump array and the water inlet end of a diaphragm pressure tank, and is pointed to and communicated with the diaphragm pressure tank. The pressure release valve k1 is arranged between the water outlet end of the diaphragm pressure tank and a user water pipe. The electric valve k3 is arranged between the water outlet end of the auxiliary pump and the user water pipe. When the auxiliary pump discharges water at a first outlet water pressure, the electric valve k3 is open. When the auxiliary pump discharges water at a second outlet water pressure, the electric valve k3 is close. When the second pressure sensor k4 detects that the pressure in the diaphragm pressure tank increases to a second outlet water pressure, the auxiliary pump is idle. The invention further provides a secondary water supply method.
Description
Technical field
The present invention relates to a kind of method of supplying water and supply equipment.
Background technology
General supply equipment Introduction on Principle is as shown in Figure 1：Equipment detects outlet pressure by second pressure sensor 2, will
Detecting value and setting value are compared, and calculate the pressure for needing to increase on original pressure-based of import pipe network, it is determined that increasing
Press pump puts into platform tricks and frequency converter output frequency and realizes constant pressure water supply with discharge pressure curve to chase after patch user.By flow
Sensor 3 detects user's discharge, and when the flow that user needs is in the range of the auxiliary pump metered flow of low discharge, system is by little
The auxiliary pump operation constant pressure water supply of flow.The supercharging pump operation starting stage, system to user supplies water while also to diaphragm-type air-compressed tank 1
Energy (moisturizing accumulation of energy) is supplemented until gas pressure is equal to system constant-pressure pressure in diaphragm-type air-compressed tank 1.By flow sensor 3
Detecting water consumption, the work of low discharge termination of pumping dormancy is automatically switched to when water consumption less than the specified water supply flow of auxiliary pump 10%
State, the wholly off operation of booster pump, into dormancy, changes and maintains the limited drop of low discharge by the diaphragm-type air-compressed tank 1 through accumulation of energy
Pressure supplies water.As low 1bar of pipe network water supply pressure ratio set value or so, system is waken up and exits dormancy, is supplied by booster pump constant pressure
Water.So circulation meets the requirement of user's pressure and flow.
Diaphragm-type air-compressed tank 1-be made up of the part such as tank body, barrier film, water inlet and porting.Tank is divided into by barrier film
Lower two chambers, cavity of resorption retaining, epicoele preliminary filling slightly below wakes up the inert gas of pressure.Accumulation of energy storage can be served in water system
Water is acted on, and when the extraneous water 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 is inversely proportional to the pressure of gas, and volume becomes after gas is compressed
Little pressure rise, gas pressure is consistent with the pressure of water in air pressure tank and intakes equal to stopping during setting value.During dormancy, when
Gas pressure is more than the pressure of water in air pressure tank when water pressure lowers, and now gas expansion water is forced out.Until pipe network water supply pressure
(can set) during power 1bar lower than setting value or so, system is waken up and exits dormancy, by booster pump constant pressure water supply.
For same diaphragm-type air-compressed tank, the total measurement (volume) of the volume=diaphragm-type air-compressed tank of the volume+retaining of gas, mend
Hydraulic pressure is higher during water accumulation of energy, and the volume of gas is pressed less, then the volume of retaining is bigger, and the energy of savings is more, for
For the water yield for discharging is supplied water in limited step-down during dormancy, if the pressure that supply equipment wakes up is certain, the water yield of dormancy is maintained
More, the time of dormancy is longer.Dormancy time is long, then system reduces dormancy pump startup number of times and run time, reduces electricity
The consumption of energy.The above-mentioned consumption for reducing electric energy is realized, two key issues must be solved：One is water when improving accumulation of energy water storage
Pressure, two to be that the pressure of the water under high pressure in diaphragm-type air-compressed tank will be dropped to consistent with the constant pressure setting value of user's request.
The content of the invention
Technical problem underlying to be solved by this invention is to provide a kind of secondary water-supply method, can increase diaphragm pneumatic
The retention volume of tank, so as to extend the dormancy time of booster pump, reaches the purpose of energy saving.And the diaphragm-type air-compressed tank
Water outlet hydraulic pressure can be reduced to the hydraulic pressure required for user.
Another technical problem to be solved by this invention is to provide a kind of low discharge energy-saving controller, realizes above-mentioned control
Method.
In order to solve above-mentioned technical problem, the invention provides a kind of low discharge energy-conservation for being applied to secondary water-supply equipment
Controller, it is characterised in that include：Check-valves k2, pressure-reducing valve k1, motor-driven valve k3 and second pressure sensor k4；
The check-valves k2 is arranged on the auxiliary pump water outlet side of supercharging pumping array water side and the water inlet end of diaphragm-type air-compressed tank
Between, and towards diaphragm-type air-compressed tank direction and connect；The pressure-reducing valve k1 be arranged on the water side of diaphragm-type air-compressed tank with
Between service pipe；
The motor-driven valve k3 is arranged between the water side of auxiliary pump and service pipe；The auxiliary pump is gone out with the first water outlet hydraulic pressure
During water, motor-driven valve k3 is opened；The auxiliary pump is so that during the second water outlet hydraulic pressure water outlet, motor-driven valve k3 is closed；
When air pressure in the second pressure sensor k4 detections diaphragm-type air-compressed tank increases to setting value, the auxiliary pump is stopped
Sleep.
In a preferred embodiment：1.5-2 times up to the first water outlet hydraulic pressure of the second water outlet hydraulic pressure.
In a preferred embodiment：The supercharging pumping array includes the working barrel being connected in parallel and auxiliary pump.
In a preferred embodiment：Pressure sensor is additionally provided between the supercharging pumping array and service pipe and flow is passed
Sensor.
In a preferred embodiment：Water under high pressure in diaphragm-type air-compressed tank hydraulic pressure after pressure-reducing valve k1 is down to first
Water outlet hydraulic pressure
The invention provides a kind of secondary water-supply method, the secondary water-supply equipment is provided with a flow threshold,
When user's water consumption is higher than the threshold value, the water side of the auxiliary pump in secondary water-supply equipment connects with 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 less than the threshold
During value, auxiliary pump is disconnected with the connection of service pipe；Subsequently, the auxiliary pump (write that people can be allowed to be thought is different auxiliary originally
Pump) operating frequency be increased to power frequency with the second water outlet hydraulic pressure high pressure water outlet, the water under high pressure is all delivered to diaphragm-type air-compressed tank
In, increasing 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 resting state, by diaphragm type
Air pressure tank supplies water to service pipe.
In a preferred embodiment：Water under high pressure 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 the specified output of pump 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 prior art, technical scheme possesses following beneficial effect：
A kind of low discharge energy-saving controller that the present invention is provided, enables to the high pressure that diaphragm-type air-compressed tank can be provided
Dormancy water capacity is original several times.The flow for assuming user is in a balanced way, then the dormancy time of supercharging pumping array is former
The several times come, can reduce the booster pump number of starts, and because of booster pump, in low discharge and startup, operational efficiency is very low, low discharge energy-conservation
Controller shortens low discharge run time and reduces dormancy pump startup number of times, therefore significantly reduces disappearing for equipment electric energy
Consumption.Actual motion test shows that increasing low discharge energy-saving controller can make the overall efficiency of supply equipment improve more than 10%.Together
When decrease the noise produced during night frequent starting.
Description of the drawings
Fig. 1 is the structure chart of secondary water-supply equipment in prior art；
Fig. 2 is the structure chart of secondary water-supply equipment in the preferred embodiment of the present invention.
Specific embodiment
Technical scheme is described further below in conjunction with accompanying drawing.
With reference to Fig. 2, a kind of secondary water-supply equipment, including：Supercharging pumping array, diaphragm-type air-compressed tank 1 and low discharge energy-conservation
Controller；In the present embodiment, the supercharging pumping array includes the working barrel being connected in parallel and auxiliary pump.
The low discharge energy-saving controller includes check-valves k1, pressure-reducing valve k2, motor-driven valve k3 and second pressure sensor k4；
The check-valves k1 is arranged between the water outlet side of auxiliary pump of supercharging pumping array water side and the water inlet end of diaphragm-type air-compressed tank 1,
And connect towards the direction of diaphragm-type air-compressed tank 1；The pressure-reducing valve k2 is arranged on the water side of diaphragm-type air-compressed tank 1 and user's water
Between pipe；
The motor-driven valve k3 is arranged between the water side of auxiliary pump and service pipe；The auxiliary pump is gone out with the first water outlet hydraulic pressure
During water, motor-driven valve k3 is opened；The auxiliary pump is so that during 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 the supercharging pumping array and service pipe.
The confession Water flow-path of above-mentioned secondary water-supply equipment is as described below：
1. the water flow pressure for flowing into service pipe is detected by first pressure sensor 2, detecting value and setting value are carried out
Relatively, the pressure for needing to increase on original pressure-based of import pipe network is calculated, it is determined that needing input in supercharging pumping array
The number of units and frequency converter output frequency (being reacted to booster pump for rotating speed) of pump, so as to realize that the water outlet for being pressurized pumping array chases after patch user
Realized carrying out constant pressure water supply with the first water outlet hydraulic pressure with discharge pressure curve.User's current are detected by flow sensor 3
Amount, in the auxiliary pump task period, auxiliary pump or working barrel and auxiliary parallel connection of pumps carry out constant pressure water outlet to service pipe with the first water outlet hydraulic pressure,
When user need flow in the range of auxiliary pump metered flow when, system by auxiliary pump operation the first water outlet hydraulic pressure constant pressure water supply,
Remaining booster pump is standby.
2. carried out with the first water outlet hydraulic pressure in booster pump the stage of constant pressure water supply, auxiliary pump to user supply water while also give every
The retaining of membrane type air pressure tank 1, until in diaphragm-type air-compressed tank 1 air pressure increase to it is identical with the first water outlet hydraulic pressure.
3. when the water consumption that flow sensor 3 is detected in service pipe is less than the 10% of the specified water supply flow of auxiliary pump
(as needed can also sets itself other ratios), control system closes motor-driven valve k3, subsequently, the auxiliary current for pumping out water end (W.E.) without
Method is flow in service pipe.Now, auxiliary pump rises to maximum operating frequency power frequency operation, and flow is little 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, because 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 k1 streams enter diaphragm-type air-compressed tank 1, continues
Gas in compressed septum formula air pressure tank 1.Second is reached when pressure sensor k4 detects gas pressure in diaphragm-type air-compressed tank
During water outlet hydraulic pressure, auxiliary pump is also switched to termination of pumping resting state by system automatically.
4. now, the water in service pipe is supplied completely by diaphragm-type air-compressed tank 1.High pressure in diaphragm-type air-compressed tank 1
Water is decompressed to the first water outlet hydraulic pressure by pressure-reducing valve k2, so as to realize the purpose of constant pressure water supply all the time.When in diaphragm-type air-compressed tank 1
High pressure water be finished, the hydraulic pressure in service pipe begins to decline, and the water in service pipe is detected when second pressure sensor 2
(other values equally can be separately set during low 1bar of pressure ratio setting value or so), control system is waken up and exits dormancy, by booster pump
Array recovers the first water outlet hydraulic pressure constant pressure water supply, and now motor-driven valve k3 is opened again.So circulation meet user to pressure and
The requirement of flow.
For same diaphragm-type air-compressed tank 1, after increasing low discharge energy-saving controller, the high pressure that can be provided during its dormancy
Power water capacity can reach more than 5 times of water capacity when not increasing low discharge energy-saving controller.For example：One 100 liters of total measurement (volume)
Diaphragm-type air-compressed tank, gas initial pressure 9bar, the first water outlet hydraulic pressure be 10bar, the first water outlet water after booster pump is in dormancy
It is waken up when pressure drop is to 9bar, calculates by Boyle's law P1V1=P2V2：To be carried when not increasing low discharge energy-saving controller
For dormancy water capacity be 10 liters；When increasing low discharge energy-saving controller, the second water outlet hydraulic pressure can reach 20bar, accordingly
Dormancy water capacity is increased to 55 liters, it is clear that after increasing low discharge energy-saving controller, the high pressure dormancy water capacity that can be provided
Product is original 5.5 times.The flow for assuming user is balanced, then the dormancy time of supercharging pumping array is original 5.5 times, can
Reduce supercharging pumping array to start 4.5 times, because of booster pump, in low discharge and startup, operational efficiency is very low, low discharge energy-saving controller
Shorten low discharge run time and reduce dormancy pump startup number of times, therefore significantly reduce the consumption of equipment electric energy.It is actual
Operation test shows that increasing low discharge energy-saving controller can make the overall efficiency of supply equipment improve more than 10%.Also subtract simultaneously
The noise produced during night frequent starting is lacked.
The invention is not limited in aforesaid specific embodiment.Above-described embodiment should not be considered as limiting the model of the present invention
Enclose.Those skilled in the art can modify and change while aforementioned detailed description is read and understood.Specifically
Protection domain should be defined by claims.
Claims (10)
1. a kind of low discharge energy-saving controller for being applied to secondary water-supply equipment, it is characterised in that include：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 of supercharging pumping array water side and the water inlet end of diaphragm-type air-compressed tank,
And towards diaphragm-type air-compressed tank direction and connect；The pressure-reducing valve k1 is arranged on the water side of diaphragm-type air-compressed tank and user's water
Between pipe；
The motor-driven valve k3 is arranged between the water side of auxiliary pump and service pipe；The auxiliary pump is with the first water outlet hydraulic pressure water outlet
When, motor-driven valve k3 is opened；The auxiliary pump is so that during the second water outlet hydraulic pressure water outlet, motor-driven valve k3 is closed；
When air pressure in the second pressure sensor k4 detections diaphragm-type air-compressed tank increases to setting value, the auxiliary pump dormancy.
2. a kind of low discharge energy-saving controller for being applied to secondary water-supply equipment according to claim 1, it is characterised in that：
1.5-2 times up to the first water outlet hydraulic pressure of the second water outlet hydraulic pressure.
3. a kind of low discharge energy-saving controller for being applied to secondary water-supply equipment according to claim 1, it is characterised in that：
The supercharging pumping array includes the working barrel being connected in parallel and auxiliary pump.
4. a kind of low discharge energy-saving controller for being applied to secondary water-supply equipment according to claim 1, it is characterised in that：
Pressure sensor and flow sensor are additionally provided between the supercharging pumping array and service pipe.
5. a kind of low discharge energy-saving controller for being applied to secondary water-supply equipment according to claim 4, it is characterised in that：
Water under high pressure in 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：The secondary water-supply equipment is provided with a flow threshold, to avoid booster pump
Low discharge fallback, the 10% of pump metered flow supplemented by the flow threshold is general；
When user's water consumption is higher than the threshold value, the water side of the auxiliary pump in secondary water-supply equipment connects with service pipe, 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 less than the threshold value,
Auxiliary pump is disconnected with the connection of service pipe；Subsequently, the operating frequency of the auxiliary pump is increased to power frequency with the second water outlet hydraulic pressure height
Water is extruded, the water under high pressure is all delivered in diaphragm-type air-compressed tank, increase the hydraulic pressure in diaphragm-type air-compressed tank, compressed septum formula gas
Gas reduces volume in pressure tank, 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 resting 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：High pressure in the diaphragm-type air-compressed tank
Water is decompressed to after the first water outlet hydraulic pressure by pressure-reducing valve and is delivered in service pipe.
8. a kind of secondary water-supply method according to claim 6, it is characterised in that：When the hydraulic pressure in service pipe compares first
During the low 1bar of water outlet hydraulic pressure, the booster pump carries out constant pressure water outlet to service pipe with the first water outlet hydraulic pressure again.
9. a kind of secondary water-supply method according to claim 6, it is characterised in that：The specified confession of pump supplemented by the flow threshold
The 10% of the water yield.
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
1.5-2 times of water outlet hydraulic pressure.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106638792A true CN106638792A (en) | 2017-05-10 |
| CN106638792B CN106638792B (en) | 2019-06-04 |
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ID=58852035
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610823167.7A Active 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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| Country | Link |
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| CN (1) | CN106638792B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112482499A (en) * | 2020-12-04 | 2021-03-12 | 平顶山自来水二次供水有限公司 | Secondary water supply water pressure early warning governing system |
| CN114809200A (en) * | 2022-06-14 | 2022-07-29 | 南京科技职业学院 | Non-negative pressure water supply equipment and water supply method |
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| 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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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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112482499A (en) * | 2020-12-04 | 2021-03-12 | 平顶山自来水二次供水有限公司 | Secondary water supply water pressure early warning governing system |
| CN114809200A (en) * | 2022-06-14 | 2022-07-29 | 南京科技职业学院 | Non-negative pressure water supply equipment and water supply method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106638792B (en) | 2019-06-04 |
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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 |