CN201292546Y - Secondary water supply system - Google Patents

Secondary water supply system Download PDF

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Publication number
CN201292546Y
CN201292546Y CNU2008201430878U CN200820143087U CN201292546Y CN 201292546 Y CN201292546 Y CN 201292546Y CN U2008201430878 U CNU2008201430878 U CN U2008201430878U CN 200820143087 U CN200820143087 U CN 200820143087U CN 201292546 Y CN201292546 Y CN 201292546Y
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CN
China
Prior art keywords
water
pressure sensor
pressure
water inlet
supply
Prior art date
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
CNU2008201430878U
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Chinese (zh)
Inventor
齐金生
杨菲
罗丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN GANQUAN GROUP CO Ltd
Tianjin University
Original Assignee
TIANJIN GANQUAN GROUP CO Ltd
Tianjin University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN GANQUAN GROUP CO Ltd, Tianjin University filed Critical TIANJIN GANQUAN GROUP CO Ltd
Priority to CNU2008201430878U priority Critical patent/CN201292546Y/en
Application granted granted Critical
Publication of CN201292546Y publication Critical patent/CN201292546Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a secondary water supply system which comprises a variable frequency control cabinet, pumping units, a drain valve, pressure sensors, a water inlet motor-operated valve, a filter, a backflow preventer, a by-pass pipe, a flow sensor, a pipeline and manually-operated valves. A municipal pipe network is directly connected with the a water inlet of the secondary water supply system; the drain valve, the first pressure sensor, one manually-operated valve, the water inlet motor-operated valve, the filter, the backflow preventer, a soft connector, the other manually-operated valve and the second pressure sensor are sequentially arranged in the system from the water inlet; the by-pass pipe and at least two pumping units are arranged behind the second pressure sensor, and the flow sensor, the third pressure sensor and a main water outlet valve are arranged behind the pumping units; the variable frequency control cabinet controlled by a touch screen collects the signals of the first pressure sensor, the second pressure sensor, the third pressure sensor and the flow sensor, and automatically adjusts the operating state of the pumping units according to the pressure condition of the municipal pipe network at the front end of the system and the water using condition at the rear end of the system; thus, a large amount of energy sources can be saved, and the secondary pollution can not occur.

Description

Secondary water supply system
Technical field
The utility model belongs to the technical field of urban water supply, is specifically related to a kind of water inlet pipe and directly links to each other with city planting ductwork, and utilize the municipal water supply overbottom pressure to laminate water supply, can save the secondary water supply system of the energy, assurance water quality safety.
Background technology
Secondary water-supply, the unit of being meant or individual supply water city public water supply or self-built facility through storing, pressurizeing, and supply user or personal form again by pipeline, and therefore, secondary water-supply is the only selection mode of present high-floor feedwater.The quality whether the secondary water-supply facility is built in accordance with regulations, designs and built is directly connected to secondary water-supply water quality, hydraulic pressure and water supply security.
The secondary water-supply facility is mainly and remedies municipal water supply line pressure deficiency, guarantee to live, lives in high-rise crowd's water and set up.Compare former water and supply water, the water quality of secondary water-supply is easier to be contaminated, and the safety of secondary water-supply and reliability all are subjected to extensive concern always, and for guaranteeing the safety of water quality, the secondary water-supply facility must independently be provided with.
The traditional secondary water system is introduced low pool (case) by the municipal tap water usually, deliver to high level cistern by the secondary pressure pump then, deliver to each by high level cistern at last and use water spot, in sending the process of water the phenomenon of energy dissipation and secondary pollution generally seriously, can't guarantee problem such as water supply security.A kind of non-negative pressure water-supply installation has appearred in existing market, and it mainly is made up of steady flow compensator, vacuum suppresser, pressure sensor, variable frequency water supply pump and central controller.Though this equipment has solved some problems that traditional secondary supplies water to a certain extent, not have fundamentally real realization to laminate water supply and stop water pollution, mainly there is following problem in it:
Steady flow compensator is passive type protection municipal ductwork pressure with vacuum suppresser to combining, have only when municipal ductwork pressure drops to a certain degree, vacuum suppresser just can begin effect, air is introduced steady flow compensator, form cutout, thereby reach the purpose of protection municipal water supply pressure, and secondary water-supply has in fact at this moment produced influence to other waters of city planting ductwork user; During vacuum suppresser work air is introduced steady flow compensator,, then can cause the secondary pollution of water supply, have potential safety hazard if having bacterium or other impurity in the air; Steady flow compensator is an airtight stainless steel water pot generally speaking, has the dead angle, because municipal pipeline is aging, has impurity such as iron rust sometimes in the pipeline, will be difficult to remove in case enter steady flow compensator, easily causes the secondary pollution to water quality.
The utility model content
The utility model provides a kind of water inlet pipe directly to link to each other with city planting ductwork for solving the technical problem that exists in the prior art, and utilizes the municipal water supply overbottom pressure to laminate water supply, can save the secondary water supply system of the energy, assurance water quality safety.
The technical scheme that the utility model is taked for the technical problem that exists in the solution prior art is:
Secondary water supply system of the present utility model comprises: variable frequency control cabinet, water pump assembly, drain valve, pressure sensor, water inlet motor operated valve, strainer, backflow preventer, bypass pipe, flow transmitter, pipeline and manually-operated gate; City planting ductwork directly is connected with the water inlet of secondary water supply system, begins to set gradually drain valve, first pressure sensor, manually-operated gate, water inlet motor operated valve, strainer, backflow preventer, connecting hose, manually-operated gate and second pressure sensor from water inlet system; At the second pressure sensor rear bypass pipe and at least two water pump assemblies are set, the water pump assembly rear is provided with flow transmitter, the 3rd pressure sensor and total outlet valve; The variable frequency control cabinet that touch-screen is controlled is gathered the signal of first, second, third pressure sensor and flow transmitter, and according to the variation of the water situation of the municipal ductwork pressure situation of system front end and rear end, adjusts the operation conditions of water pump assembly automatically.
The utility model can also adopt following technical measures:
The water pump assembly that is provided with behind described second pressure sensor is 3
Advantage and the good effect that the utlity model has are:
Secondary water supply system of the present utility model partly is made up of variable frequency control cabinet, water pump assembly, drain valve, pressure sensor, water inlet motor operated valve, strainer, backflow preventer, bypass pipe, flow transmitter, pipeline, manually-operated gate etc.The water inlet of secondary water supply system directly links to each other with city planting ductwork, utilizes the municipal water supply overbottom pressure to laminate water supply, can save a large amount of energy.Do not establish steady flow compensator and vacuum suppresser in the system, adopt totally-enclosed operation, do not have the corner or spot as yet untouched by a clean-up campaign, take place thereby stopped the secondary pollution phenomenon, water quality is more safe and reliable.Equipment is integrated dedicated hardware and the software that laminates water supply, monitors the city planting ductwork pressure of supply water in real time, and changes adjustment operation condition automatically according to the city planting ductwork pressure of supply water, and active preventing has a negative impact to municipal water supply.
Description of drawings
Fig. 1 is the schematic diagram of secondary water supply system of the present utility model.
Main Reference numeral among the figure:
Pressure sensor 2 in 1: the first: the water inlet motor operated valve
3: strainer 4: backflow preventer
5: connecting hose 6: the variable frequency control cabinet
7: flow transmitter 8: total outlet valve
Pressure sensor 10 in 9: the three: water pump assembly
Pressure sensor 12 in 11: the second: drain valve.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, in the secondary water supply system of the present utility model, first pressure sensor 1 is used to monitor the city planting ductwork pressure of supply water, and water inlet motor operated valve 2 is opened device start when municipal ductwork pressure reaches setting pressure; Strainer 3 is used to protect backflow preventer 4, water pump assembly 10, avoids graininess impurity brings in the pipeline obstruction and damage; Backflow preventer 4 is used for preventing that the water of secondary water supply system from refluxing, and avoids city planting ductwork is caused water pollution; Connecting hose 5 is used to compensate pipeline and shrinks, and reduces the injury that pipe vibration causes other equipment; Variable frequency control cabinet 6 is equipment control centres; Second pressure sensor 11 is in pump sump mouth place, monitoring actual pump unit can utilize force value, control system in the variable frequency control cabinet 6 compares the difference of first, second the two monitor value of pressure sensor simultaneously, when difference increases to a certain degree, plugged filter is described, reporting to the police requires maintenance; Flow transmitter 7 is realized water supply flow is controlled by to flow monitoring, avoids output to exceed system water supply and allows design load, to guarantee the water supply security of surrounding area; Total outlet valve 8 goes wrong for end subscriber pipe network behind the equipment or blocks the water route during unit exception; The 3rd pressure sensor 9 is used for the monitoring equipment pressure of supply water; Water pump assembly 10 is used for pressurization and promotes; Drain valve 12 is used for equipment and is completed before the normal water flowing and water supply network maintenance when resuming water supply after cutting off the water, the contaminated water of emptying water inlet pipe webmaster section.
Secondary water supply system directly links to each other the water inlet of system in use with city planting ductwork, when second pressure sensor 11 monitors the front end ductwork pressure when satisfying user's water pressure demand, water pump assembly 10 is shut down, and supplies water by bypass pipe; Be lower than user's water pressure demand when second pressure sensor monitoring to the front end ductwork pressure but when being higher than city planting ductwork and can utilizing the pressure minimum, laminate constant pressure frequency conversion by water pump assembly 10 and supply water; When second pressure sensor monitoring when the front end ductwork pressure is lower than city planting ductwork and can utilizes the pressure minimum; water pump assembly carries out frequency reducing and supplies water; after the front end ductwork pressure recovers to be higher than city planting ductwork and can utilize the pressure minimum; water pump assembly recovers to laminate constant pressure frequency conversion and supplies water; if still do not go up trend and when downward trend is arranged of front end ductwork pressure at short notice; water pump assembly is shut down, and is supplied water by bypass pipe.
The utility model can utilize the city planting ductwork overbottom pressure to greatest extent, has reduced the pump selection lift of secondary water-supply, has reduced pump power, has saved the energy.The totally-enclosed operation of equipment, compare with non-negative pressure water-supply installation and more to have omitted steady flow compensator and vacuum suppresser, avoided the water supply security hidden danger that exists the corner or spot as yet untouched by a clean-up campaign to produce because of steady flow compensator, water supply security health, owing to do not contain steady flow compensator, reduced floor space simultaneously.Compare the utility model with non-negative pressure water-supply installation according to the municipal ductwork pressure situation of change, align water supply pump unit operation operating mode automatically, initiatively avoid municipal ductwork pressure is had a negative impact; And non-negative pressure water-supply installation adopts vacuum suppresser to prevent from city planting ductwork is produced negative pressure, in fact municipal ductwork pressure has been produced adverse effect when its work, is that passive type prevents negative pressure, is not the no negative pressure of real meaning.
The SWT133GPCKF2M25 product that described first, second, third pressure sensor adopts Tianjin instrument group to produce.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model with preferred embodiment openly as above, yet, be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solutions of the utility model.

Claims (2)

1, a kind of secondary water supply system is characterized in that: comprising: variable frequency control cabinet, water pump assembly, drain valve, pressure sensor, water inlet motor operated valve, strainer, backflow preventer, bypass pipe, flow transmitter, pipeline and manually-operated gate; City planting ductwork directly is connected with the water inlet of secondary water supply system, begins to set gradually drain valve, first pressure sensor, manually-operated gate, water inlet motor operated valve, strainer, backflow preventer, connecting hose, manually-operated gate and second pressure sensor from water inlet system; At the second pressure sensor rear bypass pipe and at least two water pump assemblies are set, the water pump assembly rear is provided with flow transmitter, the 3rd pressure sensor and total outlet valve; The variable frequency control cabinet that touch-screen is controlled is gathered the signal of first, second, third pressure sensor and flow transmitter, and according to the variation of the water situation of the municipal ductwork pressure situation of system front end and rear end, adjusts the operation conditions of water pump assembly automatically.
2, secondary water supply system according to claim 1 is characterized in that: the water pump assembly that is provided with behind second pressure sensor is 3.
CNU2008201430878U 2008-11-14 2008-11-14 Secondary water supply system Expired - Fee Related CN201292546Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201430878U CN201292546Y (en) 2008-11-14 2008-11-14 Secondary water supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201430878U CN201292546Y (en) 2008-11-14 2008-11-14 Secondary water supply system

Publications (1)

Publication Number Publication Date
CN201292546Y true CN201292546Y (en) 2009-08-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201430878U Expired - Fee Related CN201292546Y (en) 2008-11-14 2008-11-14 Secondary water supply system

Country Status (1)

Country Link
CN (1) CN201292546Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244396A (en) * 2013-05-08 2013-08-14 天津大学 Determining and operating control method for full-flow efficient parallel secondary water supply pump unit
CN106168046A (en) * 2016-06-28 2016-11-30 巢湖市金辉自控设备有限公司 A kind of automatization safety water supply system of water factory
CN107558532A (en) * 2017-09-04 2018-01-09 四川宇康供水设备有限公司 Region network of rivers pressure closed loop regulator control system
CN108337310A (en) * 2018-02-02 2018-07-27 武汉远众科技有限公司 A kind of secondary water-supply Distribution Algorithm based on big data

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244396A (en) * 2013-05-08 2013-08-14 天津大学 Determining and operating control method for full-flow efficient parallel secondary water supply pump unit
CN103244396B (en) * 2013-05-08 2015-08-05 天津大学 The determination of the efficient parallel pumps of secondary water-supply full flow and progress control method
CN106168046A (en) * 2016-06-28 2016-11-30 巢湖市金辉自控设备有限公司 A kind of automatization safety water supply system of water factory
CN107558532A (en) * 2017-09-04 2018-01-09 四川宇康供水设备有限公司 Region network of rivers pressure closed loop regulator control system
CN108337310A (en) * 2018-02-02 2018-07-27 武汉远众科技有限公司 A kind of secondary water-supply Distribution Algorithm based on big data

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090819

Termination date: 20141114

EXPY Termination of patent right or utility model