CN104846955A - Non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device - Google Patents
Non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device Download PDFInfo
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- CN104846955A CN104846955A CN201410575416.6A CN201410575416A CN104846955A CN 104846955 A CN104846955 A CN 104846955A CN 201410575416 A CN201410575416 A CN 201410575416A CN 104846955 A CN104846955 A CN 104846955A
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Abstract
The invention discloses a non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device. The non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device is mainly composed of a flow stabilization compensator, a non-negative-pressure controller, a water shortage signal transmitter, first water pumps, a second water pump, third water pumps, a first flow detecting device, a second flow detecting device, a first air pressure water tank, a second air pressure water tank and a control cabinet. The water shortage signal transmitter is used for protecting the first water pumps and the third water pumps, and one to four first water pumps and third water pumps are arranged in parallel; and one second water pump is selected in cooperation with the first water pumps and the third water pumps, the flow of the second water pump is 1/4 to 1/3 of the flow of the third water pumps, and the lift of the second water pump is 85% to 100% of a difference of the lift of the first water pumps and the lift of the third water pumps. The non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device has the beneficial effects that sectional and pressure dividing water supply can be carried out on high-rise buildings; and the non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device is small in occupied land, high in water supply efficiency, good in energy saving, sanitary in water quality, free of pollution, long in service life and complete in protection function, and saving the investment.
Description
Technical field
The present invention relates to secondary water-supply technical field, specifically a kind of without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities.
Background technology
At present, the water supply subarea of highrise building is divided into high district usually according to height of delivery, middle district and low district, and low district is directly supplied water by tap water pipe network often, Zhong Qu and high district then adopt second pressure water supply, He Gao district of Normal practice Shi Jiangzhong district respectively establishes a set of independently secondary water-supply equipment to supply water, each district is unrelated, although secondary water-supply problem can be solved like this, but the occupation of land that two complete equipments supply water is relatively large, and invest high, low discharge supplies water not energy-conservation, especially high-lift in the configuration of high district, high powered water pump under low flow rate condition to there is efficiency low, the situation that energy consumption is high is more outstanding.
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 take up an area little, energy saving in running without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities.
The technical solution adopted for the present invention to solve the technical problems is: without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities primarily of steady flow compensator, non negative pressure controller, signal of water shortage transmitter, water pump one, water pump two, water pump three, flow detector one, flow detector two, auto-pneumatic cylinder one, auto-pneumatic cylinder two 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 one 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 water pump one and water pump three respectively by distribution main again, district's feed pipe during water pump one outlet pipe connects, middle district feed pipe is equiped with pressure detecting table three, middle district feed pipe connection traffic checkout gear two supplies water to middle district water spot, also auto-pneumatic cylinder one is connected with near the peak of middle district water spot, walk around water pump one, bypass pipe one is provided with between distribution main and middle district feed pipe, and flap valve one is also equiped with on bypass pipe one, water pump three outlet pipe connects high district feed pipe, high service pipe is equiped with pressure detecting table two, high district feed pipe connection traffic checkout gear one supplies water to high district water spot, also auto-pneumatic cylinder two is connected with near the peak of high district water spot, walk around water pump three, bypass pipe two is provided with between distribution main and high district feed pipe, and flap valve two is also equiped with on bypass pipe two, low discharge distribution pipe is connected with after the flap valve one of bypass pipe one, low discharge distribution pipe is equiped with water pump two and flap valve three, water pump two water outlet is connected to the flap valve two of bypass pipe two after flap valve three by low discharge feed pipe after.
Described switch board is used for distribution and Automated condtrol, and non negative pressure controller, pressure detecting table one, signal of water shortage transmitter, water pump one, water pump two, water pump three, pressure detecting table two, flow detector one, flow detector two are connected with switch board by cable respectively with pressure detecting table three.
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 pressure-superposed steady-flow and supplies water, during normal work, water pump one and water pump three are constant pressure water supply, to meet the water supply requirement of middle district's water spot and high district water spot respectively, simultaneously also be respectively auto-pneumatic cylinder one and auto-pneumatic cylinder two lays in enough regulating pondages, when the low discharge with water low peak period, when systems axiol-ogy to operating water pump one conversion frequencies lower than middle district low discharge setpoint frequency, and when detecting that flow to be in setting below district's small flow rate values by flow detector two, system is after time delay 10s ~ 30s, by normal constant force value 0.02 ~ 0.08MPa that the lift Shi Zhong district feed pipe pressure improving water pump one sets higher than pressure detecting table three, after voltage stabilizing 3s ~ 5s time, dormancy power save mode is shut down and entered to water pump one, now system carries out small flow pressure maintaining water supply by auto-pneumatic cylinder one, along with the regulating pondage in auto-pneumatic cylinder one reduces, pressure of supply water reduces, when pressure detecting table three detects the minimum operating pressure that pressure of supply water sets lower than middle district, water pump one wakes up automatically, and start and return to normal operating conditions, when being detected that by flow detector one flow is lower than high district's setting small flow rate values, and when continuing 5s ~ 30s, system will stop water pump three, and make water pump three enter standby resting state, now by auto-pneumatic cylinder two, small flow pressure maintaining water supply is carried out to high district water spot, along with the regulating pondage in auto-pneumatic cylinder two reduces, pressure of supply water reduces, when pressure detecting table two detects the minimum operating pressure that pressure of supply water sets lower than high district, water pump two starts water supply automatically, now run water pump two than water pump three energy-saving and frequency-variable, after treating low discharge, when operation water pump two can not meet the water supply requirement of high district water supply volume increase, system will automatically switch to the constant pressure water supply state of water pump three, water pump two stops, so repeatedly, to realize the energy-saving effect of subregion dividing potential drop and low discharge water supply.
Described water pump one and water pump three are 1 ~ 4 and are arranged in parallel, preferably 2 ~ 4; Described water pump two coordinates water pump one and water pump three to select 1, and the flow of water pump two is selected according to the flow 1/4 ~ 1/3 of water pump three, and the lift of water pump two is according to 85% ~ 100% the selecting of difference of water pump three lift and water pump one lift.
Described signal of water shortage transmitter is for the protection of water pump one and water pump three.When water pump one or water pump three 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 water pump one or water pump three stoppage protection and warning; when tap water inflow recovers and the pressure of steady flow compensator reaches more than the lowest service pressure of pressure detecting table one setting, water pump one and water pump three automatically start and recover normal condition.
Described pressure detecting table three for district's feed pipe pressure in detecting, be conducive to water pump one frequency conversion and unvarying pressure control while; also for the protection of water pump two; when the pressure of pressure detecting table three being detected lower than the water deprivation stress set, water pump two automatic shutdown protection is also reported to the police.
The invention has the beneficial effects as follows, the present invention can carry out the water supply of subregion dividing potential drop to highrise building, and its occupation of land is little, reduced investment, and water application efficiency is high, energy-conservation good, hygienic quality, pollution-free, long service life, and defencive function is complete.
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, non negative pressure controller, 5, pressure detecting table, 6, steady flow compensator, 7, signal of water shortage transmitter, 8, distribution main, 9, water pump one, 10, flap valve one, 11, bypass pipe one, 12, low discharge distribution pipe, 13, water pump two, 14, flap valve two, 15, bypass pipe two, 16, water pump three, 17, flap valve three, 18, low discharge feed pipe, 19, high district feed pipe, 20, pressure detecting table two, 21, cable, 22, flow detector one, 23, flow detector two, 24, middle district feed pipe, 25, pressure detecting table three, 26, switch board, 27, middle district water spot, 28, auto-pneumatic cylinder one, 29, high district water spot, 30, auto-pneumatic cylinder two.
Detailed description of the invention
Be described in detail below without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities of the present invention with regard to accompanying drawing 1 below.
As shown in Figure 1, of the present invention without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities primarily of steady flow compensator 6, non negative pressure controller 4, signal of water shortage transmitter 7, water pump 1, water pump 2 13, water pump 3 16, flow detector 1, flow detector 2 23, auto-pneumatic cylinder 1, auto-pneumatic cylinder 2 30 and switch board 26 form, described steady flow compensator 6 is the airtight pressure bearing stored water receptacle of pot type, preferred horizontal type structure, steady flow compensator 6 is equiped with non negative pressure controller 4, pressure detecting table one 5 is also equipped with at steady flow compensator 6 top, signal of water shortage transmitter 7 is equiped with bottom steady flow compensator 6, steady flow compensator 6 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 6, strainer 2 is equiped with before backflow preventer 3, steady flow compensator 6 water outlet is connected with distribution main 8, be connected with water pump 1 and water pump 3 16 respectively by distribution main 8 again, district's feed pipe 24 during water pump 1 outlet pipe connects, middle district feed pipe 24 is equiped with pressure detecting table three 25, middle district feed pipe 24 connection traffic checkout gear 2 23 supplies water to middle district water spot 27, auto-pneumatic cylinder 1 is also connected with near the peak of middle district water spot 27, walk around water pump 1, bypass pipe 1 is provided with between distribution main 8 and middle district feed pipe 24, and flap valve 1 is also equiped with on bypass pipe 1, water pump 3 16 outlet pipe connects high district feed pipe 19, high service pipe 19 is equiped with pressure detecting table two 20, high district feed pipe 19 connection traffic checkout gear 1 supplies water to high district water spot 29, also auto-pneumatic cylinder 2 30 is connected with near the peak of high district water spot 29, walk around water pump 3 16, bypass pipe 2 15 is provided with between distribution main 8 and high district feed pipe 19, and flap valve 2 14 is also equiped with on bypass pipe 2 15, low discharge distribution pipe 12 is connected with after the flap valve 1 of bypass pipe 1, low discharge distribution pipe 12 is equiped with water pump 2 13 and flap valve 3 17, water pump 2 13 water outlet is connected to the flap valve 2 14 of bypass pipe 2 15 after flap valve 3 17 by low discharge feed pipe 18 after.
Described switch board 26 is for distribution and Automated condtrol, and non negative pressure controller 4, pressure detecting table one 5, signal of water shortage transmitter 7, water pump 1, water pump 2 13, water pump 3 16, pressure detecting table two 20, flow detector 1, flow detector 2 23 are connected with switch board 26 by cable 21 respectively with pressure detecting table three 25.
Operating principle of the present invention is, non negative pressure controller 4 is directly connected in series water supply for what control tap water water inlet pipe 1 and steady flow compensator 6 without negative pressure, when the inflow of tap water water inlet pipe 1 is not enough, water storage in steady flow compensator 6 supplement and water level starts to decline time, non negative pressure controller 4 fills into air by automatically opening and eliminates negative pressure, treat that tap water inflow is sufficient, and after detecting steady flow compensator 6 full water, non negative pressure controller 4 is automatically closed and is returned to pressure-superposed steady-flow and supplies water, during normal work, water pump 1 and water pump 3 16 are constant pressure water supply, to meet the water supply requirement of middle district water spot 27 and high district water spot 29 respectively, also be respectively auto-pneumatic cylinder 1 and auto-pneumatic cylinder 2 30 lays in enough regulating pondages simultaneously, when the low discharge with water low peak period, when systems axiol-ogy to operating water pump 1 conversion frequencies lower than middle district low discharge setpoint frequency, and when detecting that flow to be in setting below district's small flow rate values by flow detector 2 23, system is after time delay 10s ~ 30s, by normal constant force value 0.02 ~ 0.08MPa that lift Shi Zhong district feed pipe 24 pressure improving water pump 1 sets higher than pressure detecting table three 25, after voltage stabilizing 3s ~ 5s time, water pump 1 is shut down and is entered dormancy power save mode, now system carries out small flow pressure maintaining water supply by auto-pneumatic cylinder 1, along with the regulating pondage in auto-pneumatic cylinder 1 reduces, pressure of supply water reduces, when pressure detecting table three 25 detects the minimum operating pressure that pressure of supply water sets lower than middle district, water pump 1 wakes up automatically, and start and return to normal operating conditions, when being detected that by flow detector 1 flow is lower than high district's setting small flow rate values, and when continuing 5s ~ 30s, system will stop water pump 3 16, and make water pump 3 16 enter standby resting state, now by auto-pneumatic cylinder 2 30, small flow pressure maintaining water supply is carried out to high district water spot 29, along with the regulating pondage in auto-pneumatic cylinder 2 30 reduces, pressure of supply water reduces, when pressure detecting table two 20 detects the minimum operating pressure that pressure of supply water sets lower than high district, water pump 2 13 starts water supply automatically, now run water pump 2 13 than water pump 3 16 energy-saving and frequency-variable, after treating low discharge, when operation water pump 2 13 can not meet the water supply requirement of high district water supply volume increase, system will automatically switch to the constant pressure water supply state of water pump 3 16, water pump 2 13 stops, so repeatedly, to realize the energy-saving effect of subregion dividing potential drop and low discharge water supply.
Described water pump 1 and water pump 3 16 are 1 ~ 4 and are arranged in parallel, preferably 2 ~ 4; Described water pump 2 13 coordinates water pump 1 and water pump 3 16 to select 1, and the flow of water pump 2 13 is selected according to the flow 1/4 ~ 1/3 of water pump 3 16, and the lift of water pump 2 13 is according to 85% ~ 100% the selecting of difference of water pump 3 16 lift and water pump 1 lift.
Described signal of water shortage transmitter 7 is for the protection of water pump 1 and water pump 3 16.When water pump 1 or water pump 3 16 work, due to the water shortage of tap water water inlet pipe 1, cause the water level decreasing in non negative pressure controller 4 action and steady flow compensator 6, when detecting below the water level decreasing in steady flow compensator 6 to the water level set lower than signal of water shortage transmitter 7, system judges lack of water, and by operating water pump 1 or water pump 3 16 stoppage protection and warning, when tap water inflow recovers, and the pressure of steady flow compensator 6 reach pressure detecting table one 5 set lowest service pressure more than time, water pump 1 and water pump 3 16 automatically start and recover normal condition.
Described pressure detecting table three 25 for district's feed pipe 24 pressure in detecting, be conducive to water pump 1 frequency conversion and unvarying pressure control while; also for the protection of water pump 2 13; when the pressure of pressure detecting table three 25 being detected lower than the water deprivation stress set, water pump 2 13 automatic shutdown protection is also reported to the police.
Claims (6)
1. one kind without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities primarily of steady flow compensator, non negative pressure controller, signal of water shortage transmitter, water pump one, water pump two, water pump three, flow detector one, flow detector two, auto-pneumatic cylinder one, auto-pneumatic cylinder two and switch board composition, 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, it is characterized in that, pressure detecting table one 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 water pump one and water pump three respectively by distribution main again, district's feed pipe during water pump one outlet pipe connects, walk around water pump one, bypass pipe one is provided with between distribution main and middle district feed pipe, and flap valve one is also equiped with on bypass pipe one, water pump three outlet pipe connects high district feed pipe, walk around water pump three, bypass pipe two is provided with between distribution main and high district feed pipe, and flap valve two is also equiped with on bypass pipe two, low discharge distribution pipe is connected with after the flap valve one of bypass pipe one, low discharge distribution pipe is equiped with water pump two and flap valve three, water pump two water outlet is connected to the flap valve two of bypass pipe two after flap valve three by low discharge feed pipe after.
2. according to claim 1ly it is characterized in that without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities, described water pump one and water pump three are 1 ~ 4 and are arranged in parallel.
3. according to claim 1 without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities, it is characterized in that, described water pump two coordinates water pump one and water pump three to select 1, the flow of water pump two is selected according to the flow 1/4 ~ 1/3 of water pump three, and the lift of water pump two is according to 85% ~ 100% the selecting of difference of water pump three lift and water pump one lift.
4. according to claim 1ly to it is characterized in that without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities, before tap water water inlet pipe connects steady flow compensator, be equiped with backflow preventer, before backflow preventer, be equiped with strainer.
5. according to claim 1 without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities, it is characterized in that, middle district feed pipe is equiped with pressure detecting table three, middle district feed pipe connection traffic checkout gear two supplies water to middle district water spot, near the peak of middle district water spot, be also connected with auto-pneumatic cylinder one.
6. according to claim 1 without negative pressure pipe network pressure-superposed steady-flow dividing potential drop water supply facilities, it is characterized in that, high service pipe is equiped with pressure detecting table two, high district feed pipe connection traffic checkout gear one supplies water to high district water spot, near the peak of high district water spot, be also connected with auto-pneumatic cylinder two.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410575416.6A CN104846955A (en) | 2014-10-25 | 2014-10-25 | Non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410575416.6A CN104846955A (en) | 2014-10-25 | 2014-10-25 | Non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297837A (en) * | 2015-10-23 | 2016-02-03 | 德州市科源给水配套工程开发有限公司 | High-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and use method |
| CN110158700A (en) * | 2019-05-22 | 2019-08-23 | 中国铁路设计集团有限公司 | A kind of remodeling method of drink water engineering and the combination of secondary water-supply improvement project |
| CN112031068A (en) * | 2020-08-25 | 2020-12-04 | 无锡康宇水处理设备有限公司 | Energy-saving non-negative-pressure pipe network pressure-superposed flow-stabilizing partial-pressure water supply equipment |
| CN113529848A (en) * | 2021-08-25 | 2021-10-22 | 上海伺水科技有限公司 | Numerical control pressure-superposed compensation type integrated non-negative pressure water supply equipment |
-
2014
- 2014-10-25 CN CN201410575416.6A patent/CN104846955A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297837A (en) * | 2015-10-23 | 2016-02-03 | 德州市科源给水配套工程开发有限公司 | High-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and use method |
| CN110158700A (en) * | 2019-05-22 | 2019-08-23 | 中国铁路设计集团有限公司 | A kind of remodeling method of drink water engineering and the combination of secondary water-supply improvement project |
| CN112031068A (en) * | 2020-08-25 | 2020-12-04 | 无锡康宇水处理设备有限公司 | Energy-saving non-negative-pressure pipe network pressure-superposed flow-stabilizing partial-pressure water supply equipment |
| CN112031068B (en) * | 2020-08-25 | 2021-07-06 | 无锡康宇水处理设备有限公司 | Energy-saving non-negative-pressure pipe network pressure-superposed flow-stabilizing partial-pressure water supply equipment |
| CN113529848A (en) * | 2021-08-25 | 2021-10-22 | 上海伺水科技有限公司 | Numerical control pressure-superposed compensation type integrated non-negative pressure water supply equipment |
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Application publication date: 20150819 |