CN205975783U - Prefabricated pump station water supply system of multistage pressurization integration - Google Patents

Prefabricated pump station water supply system of multistage pressurization integration Download PDF

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Publication number
CN205975783U
CN205975783U CN201620784791.6U CN201620784791U CN205975783U CN 205975783 U CN205975783 U CN 205975783U CN 201620784791 U CN201620784791 U CN 201620784791U CN 205975783 U CN205975783 U CN 205975783U
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CN
China
Prior art keywords
water
dry type
pumping plant
water inlet
water pump
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620784791.6U
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Chinese (zh)
Inventor
叶友红
徐超群
苏磊
石凌杰
牛纪香
梅典芳
姚志全
朱焕连
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Hangzhou Ren Cheng Environmental Protection Engineering Co Ltd
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Hangzhou Ren Cheng Environmental Protection Engineering Co Ltd
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Priority to CN201620784791.6U priority Critical patent/CN205975783U/en
Application granted granted Critical
Publication of CN205975783U publication Critical patent/CN205975783U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a prefabricated pump station water supply system of multistage pressurization integration, including a plurality of grades of prefabricated pump stations of integration and central control system, each grade prefabricated pump station of integration includes electric control system, water supply unit, clean water basin, and electric control system includes electrical control cabinet, moulded case circuit breaker, converter, PLC controller and man -machine interface system, moulded case circuit breaker, converter, man -machine interface headtotail are on the PLC controller, and electrical control cabinet and central control system are connected, and the water supply unit includes barrel, a plurality of dry -type water pump, inlet channel and outlet conduit, the clean water basin includes water storage box, water inlet manifold and the setting level gauge in the water storage box, and the end of intaking of dry -type water pump passes through the water inlet manifold that outlet conduit connects the prefabricated pump station of next stage integration through inlet channel and water storage tank connection, the play water end (W. E. ) of dry -type water pump. The utility model discloses construction cycle is short, area is little, practice thrift the soil, degree of automation is high, it is stable to supply water, the maintenance cost is low.

Description

A kind of integrated prefabricated pumping plant water system of multistage pressuring machine
Technical field
This utility model is related to a kind of automation equipment, and the integrated prefabricated pumping plant of especially a kind of multistage pressuring machine supplies water system System.
Background technology
Existing supply equipment is substantially traditional integrated prefabricated pumping plant, manually on duty, electric by human users Equipment, realizes pressurization and supplies water, and every one-level supplies water and all personnel need carry out operation on duty, and machine operation need be patrolled, Take time and effort, equipment design is complicated, and put into production long construction period, floor space is big, and land occupation is many, people needed for operation Member is many, and maintenance cost is high.
Utility model content
This utility model is in order to solve defect and deficiency present in above-mentioned prior art, there is provided one kind can be automatically obtained Pressurization is supplied water, and carries self detecting function simultaneously, to judge whether equipment normally runs;And short construction period, floor space little, Economization on land, high degree of automation, supply water multistage pressuring machine integrated prefabricated pumping plant water system stable, that maintenance cost is low.
The technical solution of the utility model:A kind of integrated prefabricated pumping plant water system of multistage pressuring machine, including some levels one The prefabricated pumping plant of bodyization and the central control system controlling integrated prefabricated pumping plant, the integrated prefabricated pumping plant of every one-level includes electric-controlled System processed, water supply unit, clear water reserviors, described electric control system includes electrical control cabinet, is arranged on moulding in electrical control cabinet Case circuit breaker, converter, PLC and human-computer interface system;Described breaker of plastic casing, converter, human-computer interface system are even It is connected in PLC, described electrical control cabinet is connected with central control system, described water supply unit includes cylinder, is arranged on Some dry type water pumps in cylinder, the inlet channel being arranged on cylinder and outlet conduit;Described clear water reserviors include water storage box, connect The water inlet manifold being connected on water storage box water inlet and the liquidometer being arranged in water storage box, the water inlet end of described dry type water pump passes through Inlet channel is connected with water storage box, and the water side of dry type water pump connects entering of the integrated prefabricated pumping plant of next stage by outlet conduit Supply mains.
This utility model adopts liquidometer to detect the water level signal in water storage box to PLC, and PLC controls by controlling Water supply unit starts shooting or shuts down to control whether this grade of integrated prefabricated pumping plant send water to the integrated prefabricated pumping plant of next stage, with Shi Caiyong central control system simultaneously with many PLC data exchange;Supply water so as to be automatically obtained pressurization, carry self simultaneously Detection function, to judge whether equipment normally runs;And short construction period, floor space be little, Economization on land, automaticity High, water supply is stable, maintenance cost is low.
Preferably, described inlet channel is provided with into water collecting pipe, and described outlet conduit is provided with water outlet collecting pipe, each The water inlet of dry type water pump passes through a water inlet pipe and connects water inlet collecting pipe, and the outlet of each dry type water pump is propped up by a water outlet Pipe connects water outlet collecting pipe.
This kind of structure makes the water inlet of dry type water pump and stable water outlet high, and the convenient number adjusting dry type water pump Amount.
Preferably, described cylinder body bottom is provided with water-retention chassis, and described dry type water pump is confluxed by water inlet collecting pipe and water outlet Pipe is fixed on water-retention chassis, and described water-retention chassis is provided with dredge pump, and described liquid level is calculated as pressure-type liquidometer.
This kind of structure allows it all to put aside water droplet producing in water supply process etc. in water-retention chassis at any time, adopts Dredge pump is discharged, and prevents dry type water pump from being soaked by hydrops and damages.
Preferably, described cylinder lateral wall is provided with a heater, and cylinder top is provided with cover, and described cover is provided with illumination Lamp and exhaust duct, described exhaust duct is connected with exhaust blower, and described water storage box side is provided with ladder stand, and described cylinder is fiberglass Cylinder, described water inlet collecting pipe and water outlet collecting pipe are DN25 stainless steel tube.
This kind of structure may insure aeration-drying in cylinder, and the dry type water pump in protection cylinder is not damaged by, and extends dry type The service life of water pump, reduces maintenance cost;Go back convenient use person simultaneously and to the observation of cistern and improve water inlet collecting pipe With the ability resistant to pressure of water outlet collecting pipe, improve the stability of dry type water feeding of water pump and water outlet, extend the use longevity of all parts Life.
Preferably, each water inlet pipe is provided with ball valve, and each exit branch is provided with check-valves, described PLC Signal receiving end connect liquidometer, the control end of PLC connects each dry type water pump, ball valve and check-valves.
This kind of structure improves its auto-control degree further.
Preferably, the quantity of described dry type water pump is three, the respectively first dry type water pump, the second dry type water pump and the 3rd Dry type water pump, described first dry type water pump is passed through the first water inlet pipe and is connected with water inlet collecting pipe, and described second dry type water pump leads to Cross the second water inlet pipe to be connected with water inlet collecting pipe, described 3rd dry type water pump passes through the 3rd water inlet pipe with water inlet collecting pipe even Connect, described first dry type water pump is connected with water outlet collecting pipe by the first exit branch, described second dry type water pump passes through second Exit branch is connected with water outlet collecting pipe, and described 3rd dry type water pump is connected with water outlet collecting pipe by the 3rd exit branch.
This kind of structure makes it run more steadily reliability, even if wherein indivedual dry type water pump damages moreover it is possible to pass through other Several dry type water pumps work on.
Preferably, described ball valve includes being arranged on the first water inlet pipe the first ball valve, it is arranged on the second water inlet pipe On the second ball valve, the 3rd ball valve being arranged on the 3rd water inlet pipe, described check-valves include being arranged on the first exit branch On first check-valve, the second check-valve being arranged on the second exit branch, the 3rd stopping of being arranged on the 3rd exit branch Return valve.
Preferably, described outlet conduit is provided with effusion meter and intelligent pressure transmitter, and described human-computer interface system includes Touch screen and control knob, described effusion meter, intelligent pressure transmitter, touch screen and control knob are all connected with PLC Signal receiving end.
The current instantaneous delivery of effusion meter detection and accumulative integrated flux, will instantaneous and integrated flux transmission by RS485 To PLC;Intelligent pressure transmitter shows current hydraulic pressure and transmission hydraulic pressure to PLC;So that operator can To monitor water flow and hydraulic pressure pressure at any time.
A kind of method of supplying water of the integrated prefabricated pumping plant water system of multistage pressuring machine, comprises the steps:
1)When PLC is detected the water storage box hydropenia of the integrated prefabricated pumping plant of next stage, is less than and mends by liquidometer The water storage box of aqueous position and this grade of integrated prefabricated pumping plant has water, liquid level when being higher than pump liquid position, and PLC sends start life Order, makes water supply unit start to start work;
2)The pressurization lifting that clear water in water storage box runs past water supply unit in cylinder is transported to next stage integration in advance In the water storage box of pumping plant processed;
3)When PLC is detected water storage box hydropenia, is less than dry tap protection liquid level or next stage one by liquidometer The water storage box of the prefabricated pumping plant of bodyization is full of, reaches highest liquid level, sends halt command, allows water supply unit to stop supplying water, makes dry type Water pump quits work;
4)The moisture producing in water supply unit running process drain by heater heating evaporation or by exhaust blower or Person is discharged by dredge pump after the savings of water-retention chassis.
Preferably, described PLC realizes the exchange of data by the function of Ethernet and RS485;Described man-machine Interface system carries out data exchange by Ethernet with PLC, shows this grade of integrated prefabricated pumping plant and subordinate's one Change the data of prefabricated pumping plant.
This utility model adopts liquidometer to detect the water level signal in water storage box to PLC, and PLC controls by controlling Water supply unit starts shooting or shuts down to control whether this grade of integrated prefabricated pumping plant send water to the integrated prefabricated pumping plant of next stage, with Shi Caiyong central control system simultaneously with many PLC data exchange;Supply water so as to be automatically obtained pressurization, carry self simultaneously Detection function, to judge whether equipment normally runs;And short construction period, floor space be little, Economization on land, automaticity High, water supply is stable, maintenance cost is low.
Brief description
Fig. 1 is the structural representation of the wherein integrated prefabricated pumping plant of one-level in this utility model;
Fig. 2 is the schematic flow sheet of the wherein integrated prefabricated pumping plant of one-level in this utility model;
In figure 1. water inlet manifold, 2. liquidometer, 3. water storage box, 4. ladder stand, 5. cover, 6. cylinder, 7. the first dry water Pump, 8. water-retention chassis, 9. dredge pump, 10. exhaust duct, 11. illuminating lamps, 12. heaters, 13. touch screens, 14. control knobs, 15.PLC controller, 16. converters, 17. second dry type water pumps, 18. inlet channels, 19. water inlet collecting pipes, 20. outlet conduits, 21. first water inlet pipes, 22. second water inlet pipes, 23. the 3rd water inlet pipes, 24. first exit branch, 25. second water outlets are propped up Pipe, 26. the 3rd exit branch, 27. the 3rd dry type water pumps, 28. exhaust blowers, 29. water outlet collecting pipes, 30. electrical control cabinets, 31. First ball valve, 32. second ball valves, 33. the 3rd ball valves, 34. first check-valves, 35. second check-valves, 36. the 3rd check-valves, 37. effusion meters, 38. intelligent pressure transmitters.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail, but is not that model is protected to this utility model The restriction enclosed.
As illustrated in fig. 1 and 2, a kind of integrated prefabricated pumping plant water system of multistage pressuring machine, integrated prefabricated including some levels Pumping plant and the central control system controlling integrated prefabricated pumping plant, the integrated prefabricated pumping plant of every one-level include electric control system, Water supply unit, clear water reserviors, electric control system include electrical control cabinet 30, be arranged in electrical control cabinet 30 mould shell open circuit Device, converter 16, PLC 15 and human-computer interface system;Breaker of plastic casing, converter 16, human-computer interface system are connected to In PLC 15.Electrical control cabinet 30 is connected with central control system, and water supply unit includes cylinder 6, is arranged in cylinder 6 Three dry type water pumps, the inlet channel 18 being arranged on cylinder 6 and outlet conduit 20.Clear water reserviors include water storage box 3, are connected to The water inlet manifold 1 of water storage box 3 water inlet and the liquidometer 2 being arranged in water storage box 3.The water inlet end of dry type water pump passes through water inlet Pipeline 18 is connected with water storage box 3, and the water side of dry type water pump connects the integrated prefabricated pumping plant of next stage by outlet conduit 20 Water inlet manifold.
Inlet channel 18 is provided with into water collecting pipe 19, and outlet conduit 20 is provided with water outlet collecting pipe 29, each dry water The water inlet of pump passes through a water inlet pipe and connects water inlet collecting pipe 19, and the outlet of each dry type water pump passes through an exit branch even Pick out water collecting pipe 29.
Cylinder 6 bottom is provided with water-retention chassis 8, and dry type water pump passes through water inlet collecting pipe 19 and water outlet collecting pipe 29 is fixed on storage On water-bed disk 8, water-retention chassis 8 is provided with dredge pump 9.Liquidometer 2 is pressure-type liquidometer
Cylinder 6 side wall is provided with a heater 12, and cylinder 6 top is provided with cover 5, and cover 5 is provided with illuminating lamp 11 and row Airduct 10, exhaust duct 10 is connected with exhaust blower 28.Water storage box 3 side is provided with ladder stand 4, and cylinder 6 is fiber reinforced plastic barrel, water inlet Collecting pipe 19 and water outlet collecting pipe 29 are DN25 stainless steel tube.
Each water inlet pipe is provided with ball valve, and each exit branch is provided with check-valves, and the signal of PLC 15 receives End connects liquidometer 2, and the control end of PLC 15 connects each dry type water pump, ball valve and check-valves.
The quantity of dry type water pump is three, the respectively first dry type water pump 7, the second dry type water pump 17 and the 3rd dry type water pump 27.First dry type water pump 7 is passed through the first water inlet pipe 21 and is connected with water inlet collecting pipe 19, and the second dry type water pump 17 enters by second Water arm 22 is connected with water inlet collecting pipe 19, and the 3rd dry type water pump 27 passes through the 3rd water inlet pipe 23 with water inlet collecting pipe 19 even Connect.First dry type water pump 7 is connected with water outlet collecting pipe 29 by the first exit branch 24, and the second dry type water pump 17 goes out by second Water arm 25 is connected with water outlet collecting pipe 29, and the 3rd dry type water pump 27 passes through the 3rd exit branch 26 with water outlet collecting pipe 29 even Connect.
Ball valve include the first ball valve 31 being arranged on the first water inlet pipe 21, be arranged on the second water inlet pipe 22 Two ball valves 32, the 3rd ball valve 33 being arranged on the 3rd water inlet pipe 23, check-valves include being arranged on the first exit branch 24 First check-valve 34, the second check-valve 35 being arranged on the second exit branch 25, be arranged on the 3rd exit branch 26 3rd check-valves 36.
Outlet conduit 20 is provided with effusion meter 37 and intelligent pressure transmitter 38.Human-computer interface system includes touch screen 13 He Control knob 14.Effusion meter 37, intelligent pressure transmitter 38, touch screen 13 and control knob 14 are all connected with PLC 15 Signal receiving end.
A kind of method of supplying water of the integrated prefabricated pumping plant water system of multistage pressuring machine, comprises the steps:
1)When PLC is detected the water storage box hydropenia of the integrated prefabricated pumping plant of next stage, is less than and mends by liquidometer The water storage box of aqueous position and this grade of integrated prefabricated pumping plant has water, liquid level when being higher than pump liquid position, and PLC sends start life Order, makes water supply unit start to start work;
2)The pressurization lifting that clear water in water storage box runs past water supply unit in cylinder is transported to next stage integration in advance In the water storage box of pumping plant processed;
3)When PLC is detected water storage box hydropenia, is less than dry tap protection liquid level or next stage one by liquidometer The water storage box of the prefabricated pumping plant of bodyization is full of, reaches highest liquid level, sends halt command, allows water supply unit to stop supplying water, makes dry type Water pump quits work;
4)The moisture producing in water supply unit running process drain by heater heating evaporation or by exhaust blower or Person is discharged by dredge pump after the savings of water-retention chassis.
PLC realizes the exchange of data by the function of Ethernet and RS485;Human-computer interface system passes through ether Net to carry out data exchange with PLC, shows the data of the integrated prefabricated pumping plant of this grade of integrated prefabricated pumping plant and subordinate.
This utility model can also carry out dry type water pump according to the water storage box water level height of the integrated prefabricated pumping plant of adjacent two-stage The adjustment of start quantity it is simply that when the water storage box water level of the integrated prefabricated pumping plant of previous stage is too high the integration of its next stage pre- When the water storage box water level of pumping plant processed is too low, multiple dry type water pumps can be opened simultaneously and all work, and with water between the two Potential difference is less and less, can suitably reduce the dry type water pump quantity of unlatching, and finally all dry type water pump is all shut down.
This utility model adopts PLC(Hereinafter referred to as PLC)As the control axis of the system, when next stage one When the water storage box of the water storage box hydropenia and this grade of integrated prefabricated pumping plant of changing prefabricated pumping plant has water, this grade of PLC detects this at two During liquid level signal, PLC is processed through calculating, sends power-on command, makes water supply unit start to start work, the clear water of this grade will It is transported to next stage integration from the pressurization lifting of water storage box water supply unit in cylinder of this grade of integrated prefabricated pumping plant pre- In the water storage box of pumping plant processed.When water supply unit operation, PLC is adjusted by PID, and the working condition making water supply unit is optimal Operating point adnexa runs, and has given play to the optimum performance of water pump, simultaneously again can using electricity wisely.When PLC detects subordinate's integration in advance During the water storage box hydropenia of the water storage box flowing full of pumping plant processed or this grade of integrated prefabricated pumping plant, this grade of plc can send and cease and desist order, Allow water supply unit integration soft stop to stop, so that water pump is stopped, reducing impact, PLC system and the man-machine boundary that the water hammer of current brings simultaneously Face is communicated, and so that the running status of water supply unit and level parameter is shown in touch screen window, and user passes through in touch screen The parameter setting in portion, water supply unit both can have been made to control by touch screen and also water supply unit can be made automatically to start and stop moreover it is possible to The intuitively state of display system, enters the electric current of water pump, frequency, energy consumption, operation curve, pipeline pressure, water supply flow, this level one The water storage box liquid level of the prefabricated pumping plant of bodyization, the water storage box liquid level of the integrated prefabricated pumping plant of subordinate.
This utility model adopts liquidometer to detect the water level signal in water storage box to PLC, and PLC controls by controlling Water supply unit starts shooting or shuts down to control whether this grade of integrated prefabricated pumping plant send water to the integrated prefabricated pumping plant of next stage, with Shi Caiyong central control system simultaneously with many PLC data exchange;Supply water so as to be automatically obtained pressurization, carry self simultaneously Detection function, to judge whether equipment normally runs;And short construction period, floor space be little, Economization on land, automaticity High, water supply is stable, maintenance cost is low.

Claims (9)

1. the integrated prefabricated pumping plant water system of a kind of multistage pressuring machine, including the integrated prefabricated pumping plant of some levels with control integration The central control system of prefabricated pumping plant it is characterised in that:Every integrated prefabricated pumping plant of one-level includes electric control system, water supplying machine Group, clear water reserviors, described electric control system includes electrical control cabinet, the breaker of plastic casing being arranged in electrical control cabinet, frequency conversion Device, PLC and human-computer interface system;Described breaker of plastic casing, converter, human-computer interface system are connected to PLC On, described electrical control cabinet is connected with central control system, described water supply unit include cylinder, be arranged on some dry in cylinder Formula water pump, the inlet channel being arranged on cylinder and outlet conduit;Described clear water reserviors include water storage box, are connected to water storage box water inlet Water inlet manifold at mouthful and the liquidometer being arranged in water storage box, the water inlet end of described dry type water pump passes through inlet channel and water-retention Case connects, and the water side of dry type water pump connects the water inlet manifold of the integrated prefabricated pumping plant of next stage by outlet conduit.
2. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 1 it is characterised in that:Described enter Waterpipe is provided with into water collecting pipe, and described outlet conduit is provided with water outlet collecting pipe, and the water inlet of each dry type water pump passes through One water inlet pipe connects water inlet collecting pipe, and the outlet of each dry type water pump passes through an exit branch and connects water outlet collecting pipe.
3. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 2 it is characterised in that:Described cylinder Body bottom is provided with water-retention chassis, and described dry type water pump is fixed on water-retention chassis by water inlet collecting pipe and water outlet collecting pipe, institute State water-retention chassis and be provided with dredge pump, described liquid level is calculated as pressure-type liquidometer.
4. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 3 it is characterised in that:Described cylinder Body sidewall is provided with a heater, and cylinder top is provided with cover, and described cover is provided with illuminating lamp and exhaust duct, described exhaust duct On be connected with exhaust blower, described water storage box side is provided with ladder stand, described cylinder be fiber reinforced plastic barrel, described water inlet collecting pipe and Water outlet collecting pipe is DN25 stainless steel tube.
5. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 2 it is characterised in that:Each enters Water arm is provided with ball valve, and each exit branch is provided with check-valves, and the signal receiving end of described PLC connects liquid level Meter, the control end of PLC connects each dry type water pump, ball valve and check-valves.
6. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 5 it is characterised in that:Described dry The quantity of formula water pump is three, the respectively first dry type water pump, the second dry type water pump and the 3rd dry type water pump, described first dry type Water pump is passed through the first water inlet pipe and is connected with water inlet collecting pipe, and described second dry type water pump is passed through the second water inlet pipe and converged with water inlet Flow tube connects, and described 3rd dry type water pump is passed through the 3rd water inlet pipe and is connected with water inlet collecting pipe, and described first dry type water pump leads to Cross the first exit branch to be connected with water outlet collecting pipe, described second dry type water pump passes through the second exit branch with water outlet collecting pipe even Connect, described 3rd dry type water pump is connected with water outlet collecting pipe by the 3rd exit branch.
7. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 6 it is characterised in that:Described ball Valve includes the first ball valve being arranged on the first water inlet pipe, the second ball valve being arranged on the second water inlet pipe, is arranged on The 3rd ball valve on three water inlet pipes, first check-valve that described check-valves include being arranged on the first exit branch, is arranged on Second check-valve on second exit branch, the 3rd check-valves being arranged on the 3rd exit branch.
8. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 7 it is characterised in that:Described go out Waterpipe is provided with effusion meter and intelligent pressure transmitter, and described human-computer interface system includes touch screen and control knob, described Effusion meter, intelligent pressure transmitter, touch screen and control knob are all connected with the signal receiving end of PLC.
9. a kind of integrated prefabricated pumping plant water system of multistage pressuring machine according to claim 1 it is characterised in that:Described PLC realizes the exchange of data by the function of Ethernet and RS485;Described human-computer interface system by Ethernet Lai Carry out data exchange with PLC.
CN201620784791.6U 2016-07-25 2016-07-25 Prefabricated pump station water supply system of multistage pressurization integration Expired - Fee Related CN205975783U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620784791.6U CN205975783U (en) 2016-07-25 2016-07-25 Prefabricated pump station water supply system of multistage pressurization integration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620784791.6U CN205975783U (en) 2016-07-25 2016-07-25 Prefabricated pump station water supply system of multistage pressurization integration

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Publication Number Publication Date
CN205975783U true CN205975783U (en) 2017-02-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088213A (en) * 2016-07-25 2016-11-09 杭州仁成环保工程有限公司 Multistage pressurization integrated prefabricated pumping plant water system and method for supplying water thereof
CN107254894A (en) * 2017-08-07 2017-10-17 汤树林 A kind of pumping method and pumping system
CN110863559A (en) * 2018-08-27 2020-03-06 上海熊猫机械(集团)有限公司 Energy-saving intelligent prefabricated pump station

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088213A (en) * 2016-07-25 2016-11-09 杭州仁成环保工程有限公司 Multistage pressurization integrated prefabricated pumping plant water system and method for supplying water thereof
CN107254894A (en) * 2017-08-07 2017-10-17 汤树林 A kind of pumping method and pumping system
CN110863559A (en) * 2018-08-27 2020-03-06 上海熊猫机械(集团)有限公司 Energy-saving intelligent prefabricated pump station

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Granted publication date: 20170222

Termination date: 20170725