CN104846946A - Energy-saving no-negative-pressure direct-connected water supply equipment - Google Patents

Energy-saving no-negative-pressure direct-connected water supply equipment Download PDF

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Publication number
CN104846946A
CN104846946A CN201410566797.1A CN201410566797A CN104846946A CN 104846946 A CN104846946 A CN 104846946A CN 201410566797 A CN201410566797 A CN 201410566797A CN 104846946 A CN104846946 A CN 104846946A
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China
Prior art keywords
water
low
water supply
energy
pump
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Pending
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CN201410566797.1A
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Chinese (zh)
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不公告发明人
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Qingdao Wanli Technology Co Ltd
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Qingdao Wanli Technology Co Ltd
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Priority to CN201410566797.1A priority Critical patent/CN104846946A/en
Publication of CN104846946A publication Critical patent/CN104846946A/en
Pending legal-status Critical Current

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Abstract

The invention discloses energy-saving no-negative-pressure direct-connected water supply equipment. The energy-saving no-negative-pressure direct-connected water supply equipment mainly comprises a steady-flow compensator, a no-negative-pressure controller, a low-flow pump, main pumps, a flow detection device, a surge tank and a control cabinet. During normal operation, the main pumps supply water through frequency conversion and speed regulation; at the low flow of water using low cycle, when the flow detection device detects that the flow rate is lower than the set low flow rate value and the condition lasts for 5-30 s, the main pumps are stopped, and automatic switching to the low-flow pump is realized for variable-frequency water supply; and after the low flow passes, when frequency conversion of the low-flow pump cannot meet the water supply demand for increased water consumption, automatic switching to the main pumps is realized for the variable-frequency and speed-regulating water supply state, and the low-flow pump stops. The energy-saving no-negative-pressure direct-connected water supply equipment has the benefits that the advantages of compact structure, small occupied area, convenient installation and maintenance, energy-saving operation, sanitary water supply and the like are achieved, the degree of automation is high, the protection functions are complete, and the energy-saving no-negative-pressure direct-connected water supply equipment has a very good development prospect and economical effects when applied to secondary water supply in residence, offices, hotels and the like.

Description

Energy-saving without negative pressure direct-heating system wetting system
Technical field
The present invention relates to secondary water-supply technical field, specifically a kind of energy-saving without negative pressure direct-heating system wetting system.
Background technology
Along with highrise building gets more and more, secondary water-supply is more prevalent.At present, the highrise building secondary water-supply that market exists mainly comprises high level cistern or water tower water-feeding, pneumatic water supply, variable frequency water supply and without the direct-connected water supply of negative pressure totally 4 kinds of modes, compared with front several mode, without the direct-connected water supply of negative pressure due to tap water water inlet pipe pressure can be make use of, and take up an area few, reduced investment, management maintenance is convenient, the advantages such as energy-saving clean, thus in secondary water-supply, leading position is occupied, but market can not solve without negative pressure direct-heating system wetting system the power saving that water pump supplies water at low discharge well, because there is water supply volume vary within wide limits in secondary water-supply, by the feature such as water is uneven, and often there will be the situation of long-time low discharge or zero delivery, as in the period in morning, but in order to maintain ductwork pressure, water pump still needs to run, and water pump normally carries out type selecting according to design discharge and lift, to meet the designing requirement of the most unfavorable processing condition, to cause selected water pump efficient district of substantial deviation when low discharge runs like this, there is not energy-conservation phenomenon, but also will the application life of water pump be had influence on.So some then adopts, and to arrange auto-pneumatic cylinder termination of pumping when low discharge energy-conservation, but arrange that auto-pneumatic cylinder exists gas leakage, tonifying Qi, the unstable and long-time backwater of pressure of supply water affect the problems such as hygienic quality.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of compact conformation, supply the water hygiene and be conducive to Automated condtrol to reach unattended energy-saving without negative pressure direct-heating system wetting system.
The technical solution adopted for the present invention to solve the technical problems is: energy-saving without the main steady flow compensator of negative pressure direct-heating system wetting system, non negative pressure controller, low-capacity pump, main pump, flow detector, vacuum tank and switch board composition, described steady flow compensator is the airtight pressure bearing stored water receptacle of pot type, preferred horizontal type structure, steady flow compensator is equiped with non negative pressure controller, pressure detecting table is also equipped with at steady flow compensator top, signal of water shortage transmitter is equiped with bottom steady flow compensator, steady flow compensator is directly connected with tap water water inlet pipe, and backflow preventer was equiped with before tap water water inlet pipe connects steady flow compensator, strainer is equiped with before backflow preventer, steady flow compensator water outlet is connected with distribution main, be connected with main pump by distribution main again, main pump water outlet is connected with outfall sewer, be transported to each water spot after outfall sewer is connected with flow detector again to supply water, outfall sewer is also equiped with vacuum tank and pressure detecting table, described distribution main is also connected with low discharge distribution pipe, low discharge distribution pipe is equiped with low-capacity pump, low-capacity pump water outlet is by low discharge feed pipe and walk around main pump, the bypass pipe be located between distribution main and outfall sewer connects, and flap valve is provided with on bypass pipe, after low discharge feed pipe is connected to the flap valve of bypass pipe.The pressure detecting table of the pressure detecting table of steady flow compensator, non negative pressure controller, signal of water shortage transmitter, low-capacity pump, main pump, flow detector and outfall sewer is covered with cable respectively and is connected with switch board.
Operating principle of the present invention is, non negative pressure controller is directly connected in series water supply for what control tap water water inlet pipe and steady flow compensator without negative pressure, when the inflow of tap water water inlet pipe is not enough, water storage in steady flow compensator supplement and water level starts to decline time, non negative pressure controller fills into air by automatically opening and eliminates negative pressure, treat that tap water inflow is sufficient, and after detecting steady flow compensator full water, non negative pressure controller is automatically closed and is returned to and laminates water supply, namely ftercompction water supply is carried out to tap water water inlet pipe pressure, during normal work, by main pump frequency modulation water supply, when the low discharge with water low peak period, when being detected that by flow detector flow is lower than setting small flow rate values, and when continuing 5s ~ 30s, system is by stopping main pump and automatically switch to low-capacity pump variable frequency water supply, now low-capacity pump frequency conversion is more energy-conservation than running main pump, after treating low discharge, when the frequency conversion of operation low-capacity pump can not meet the water supply requirement of water supply volume increase, system will automatically switch to main pump frequency modulation water supply state, low-capacity pump stops, so repeatedly, to reach energy-efficient effect.
Described signal of water shortage transmitter is for the protection of main pump and low-capacity pump.When main pump or low-capacity pump work; due to the water shortage of tap water water inlet pipe; cause the water level decreasing in non negative pressure controller action and steady flow compensator; when detecting below the water level decreasing in steady flow compensator to the water level lower than the setting of signal of water shortage transmitter; system judges lack of water and by operating main pump or low-capacity pump stoppage protection and warning; when steady flow compensator pressure recover to pressure detecting table set open more than pump pressure time, main pump or low-capacity pump automatically start and recover normal work.
Described main pump is 2 ~ 4 and is arranged in parallel, and every platform main pump all can carry out frequency control operation; Described low-capacity pump coordinates main pump to select 1, and preferred flow presses main pump flow 1/4 ~ 1/3, lift by main pump lift or lower than main pump lift 5% ~ 25%.
The invention has the beneficial effects as follows; the present invention has compact conformation, takes up an area little, convenient for installation and maintenance, the advantage such as energy saving in running, water supply quality health; and automaticity is high; defencive function is complete, and in the secondary water-supplies such as house, office, hotel, application has good development prospect and economic effect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1, tap water water inlet pipe, 2, strainer, 3, backflow preventer, 4, steady flow compensator, 5, pressure detecting table, 6, non negative pressure controller, 7, signal of water shortage transmitter, 8, low discharge distribution pipe, 9, low-capacity pump, 10, low discharge feed pipe, 11, bypass pipe, 12, flap valve, 13, distribution main, 14, main pump, 15, outfall sewer, 16, flow detector, 17, vacuum tank, 18, cable, 19, pressure detecting table, 20, switch board, 21, use water spot.
Detailed description of the invention
Energy-savingly to be described in detail below without negative pressure direct-heating system wetting system of the present invention with regard to accompanying drawing 1 below.
As shown in Figure 1, of the present invention energy-saving without the main steady flow compensator 4 of negative pressure direct-heating system wetting system, non negative pressure controller 6, low-capacity pump 9, main pump 14, flow detector 16, vacuum tank 17 and switch board 20 form, described steady flow compensator 4 is the airtight pressure bearing stored water receptacle of pot type, preferred horizontal type structure, steady flow compensator 4 is equiped with non negative pressure controller 6, pressure detecting table 5 is also equipped with at steady flow compensator 4 top, signal of water shortage transmitter 7 is equiped with bottom steady flow compensator 4, steady flow compensator 4 is directly connected with tap water water inlet pipe 1, and backflow preventer 3 was equiped with before tap water water inlet pipe 1 connects steady flow compensator 4, strainer 2 is equiped with before backflow preventer 3, steady flow compensator 4 water outlet is connected with distribution main 13, be connected with main pump 14 by distribution main 13 again, main pump 14 water outlet is connected with outfall sewer 15, outfall sewer 15 is transported to each water spot 21 and supplies water after being connected with flow detector 16 again, outfall sewer 15 is also equiped with vacuum tank 17 and pressure detecting table 19, described distribution main 13 is also connected with low discharge distribution pipe 8, low discharge distribution pipe 8 is equiped with low-capacity pump 9, low-capacity pump 9 water outlet is by low discharge feed pipe 10 and walk around main pump 14, the bypass pipe 11 be located between distribution main 13 and outfall sewer 15 connects, and flap valve 12 is provided with on bypass pipe 11, after low discharge feed pipe 10 is connected to the flap valve 12 of bypass pipe 11.The pressure detecting table 19 of the pressure detecting table 5 of steady flow compensator 4, non negative pressure controller 6, signal of water shortage transmitter 7, low-capacity pump 9, main pump 14, flow detector 16 and outfall sewer 15 is covered with cable 18 respectively and is connected with switch board 20.
Operating principle of the present invention is, non negative pressure controller 6 is directly connected in series water supply for what control tap water water inlet pipe 1 and steady flow compensator 4 without negative pressure, when the inflow of tap water water inlet pipe 1 is not enough, water storage in steady flow compensator 4 supplement and water level starts to decline time, non negative pressure controller 6 fills into air by automatically opening and eliminates negative pressure, treat that tap water inflow is sufficient, and after detecting steady flow compensator 4 full water, non negative pressure controller 6 is automatically closed and is returned to and laminates water supply, namely ftercompction water supply is carried out to tap water water inlet pipe 1 pressure, during normal work, by main pump 14 frequency modulation water supply, when the low discharge with water low peak period, when being detected that by flow detector 16 flow is lower than setting small flow rate values, and when continuing 5s ~ 30s, system is by stopping main pump 14 and automatically switch to low-capacity pump 9 variable frequency water supply, now low-capacity pump 9 frequency conversion is more energy-conservation than running main pump 14, after treating low discharge, when the frequency conversion of operation low-capacity pump 9 can not meet the water supply requirement of water supply volume increase, system will automatically switch to main pump 14 frequency modulation water supply state, low-capacity pump 9 stops, so repeatedly, to reach energy-efficient effect.
Described signal of water shortage transmitter 7 is for the protection of main pump 14 and low-capacity pump 9.When main pump 14 or low-capacity pump 9 work; due to the water shortage of tap water water inlet pipe 1; cause the water level decreasing in non negative pressure controller 6 action and steady flow compensator 4; when detecting below the water level decreasing in steady flow compensator 4 to the water level set lower than signal of water shortage transmitter 7; system judges lack of water and by operating main pump 14 or low-capacity pump 9 stoppage protection and warning; when steady flow compensator 4 pressure recover to pressure detecting table 5 set open more than pump pressure time, main pump 14 or low-capacity pump 9 automatically start and recover normal work.
Described main pump 14 is 2 ~ 4 and is arranged in parallel, and every platform main pump 14 all can carry out frequency control operation; Described low-capacity pump 9 coordinates main pump 14 to select 1, and preferred flow presses main pump 14 flow 1/4 ~ 1/3, lift by main pump 14 lift or lower than main pump 14 lift 5% ~ 25%.

Claims (4)

1. one kind energy-saving without the main steady flow compensator of negative pressure direct-heating system wetting system, non negative pressure controller, low-capacity pump, main pump, flow detector, vacuum tank and switch board composition, it is characterized in that, described steady flow compensator is the airtight pressure bearing stored water receptacle of pot type, steady flow compensator is equiped with non negative pressure controller, pressure detecting table is also equipped with at steady flow compensator top, signal of water shortage transmitter is equiped with bottom steady flow compensator, steady flow compensator is directly connected with tap water water inlet pipe, steady flow compensator water outlet is connected with distribution main, be connected with main pump by distribution main again, main pump water outlet is connected with outfall sewer, be transported to each water spot after outfall sewer is connected with flow detector again to supply water, outfall sewer is also equiped with vacuum tank and pressure detecting table, described distribution main is also connected with low discharge distribution pipe, low discharge distribution pipe is equiped with low-capacity pump, low-capacity pump water outlet is by low discharge feed pipe and walk around main pump, the bypass pipe be located between distribution main and outfall sewer connects, and flap valve is provided with on bypass pipe, after low discharge feed pipe is connected to the flap valve of bypass pipe.
2. according to claim 1 energy-saving without negative pressure direct-heating system wetting system, it is characterized in that, the pressure detecting table of the pressure detecting table of steady flow compensator, non negative pressure controller, signal of water shortage transmitter, low-capacity pump, main pump, flow detector and outfall sewer is covered with cable respectively and is connected with switch board.
3. according to claim 1ly energy-savingly to it is characterized in that without negative pressure direct-heating system wetting system, before tap water water inlet pipe connects steady flow compensator, be equiped with backflow preventer, before backflow preventer, be equiped with strainer.
4. according to claim 1ly energy-savingly to it is characterized in that without negative pressure direct-heating system wetting system, described main pump is 2 ~ 4 and is arranged in parallel, and described low-capacity pump coordinates main pump to select 1.
CN201410566797.1A 2014-10-23 2014-10-23 Energy-saving no-negative-pressure direct-connected water supply equipment Pending CN104846946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410566797.1A CN104846946A (en) 2014-10-23 2014-10-23 Energy-saving no-negative-pressure direct-connected water supply equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410566797.1A CN104846946A (en) 2014-10-23 2014-10-23 Energy-saving no-negative-pressure direct-connected water supply equipment

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Publication Number Publication Date
CN104846946A true CN104846946A (en) 2015-08-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110139964A (en) * 2016-12-06 2019-08-16 瑞士水技术公司 Pressure washing system for closestool
CN111997143A (en) * 2020-08-26 2020-11-27 蒋介中 Energy-saving optimized pipe network pressure-superposed water supply control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110139964A (en) * 2016-12-06 2019-08-16 瑞士水技术公司 Pressure washing system for closestool
CN111997143A (en) * 2020-08-26 2020-11-27 蒋介中 Energy-saving optimized pipe network pressure-superposed water supply control system

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Application publication date: 20150819