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WO2015131422A1 - Système de purification d'eau à microdécharge d'eaux usées à pulsation intense - Google Patents

Système de purification d'eau à microdécharge d'eaux usées à pulsation intense Download PDF

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Publication number
WO2015131422A1
WO2015131422A1 PCT/CN2014/074159 CN2014074159W WO2015131422A1 WO 2015131422 A1 WO2015131422 A1 WO 2015131422A1 CN 2014074159 W CN2014074159 W CN 2014074159W WO 2015131422 A1 WO2015131422 A1 WO 2015131422A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
reverse osmosis
osmosis membrane
filter
purification system
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.)
Ceased
Application number
PCT/CN2014/074159
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English (en)
Chinese (zh)
Inventor
杨瀚
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.)
SHENZHEN WATERFROM TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN WATERFROM TECHNOLOGY Co Ltd
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
Priority claimed from CN201410078645.7A external-priority patent/CN103803736B/zh
Application filed by SHENZHEN WATERFROM TECHNOLOGY Co Ltd filed Critical SHENZHEN WATERFROM TECHNOLOGY Co Ltd
Publication of WO2015131422A1 publication Critical patent/WO2015131422A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis

Definitions

  • the invention relates to a water purifier, in particular to a strong pulse micro wastewater discharge water purification system.
  • the object of the present invention is to provide a strong pulse micro-wastewater discharge water purification system in view of the above-mentioned drawbacks of the prior art.
  • the strong pulse micro wastewater discharge water purification system designed by the invention comprises: a water inlet tee connected in turn through a pipeline, a pre-filter group, a booster pump, a reverse osmosis membrane filter and a post-activated carbon filter, wherein the outlet of the rear activated carbon filter is connected to the water outlet through a high-pressure switch, and the inlet is connected to a water storage pressure tank through a pipeline.
  • the outlet of the reverse osmosis membrane filter is provided with a waste water discharge pipe, and a pulse solenoid valve is arranged on the pipe; the water storage pressure tank returns a trace of pure water through a pipe and a check valve to the front end of the reverse osmosis membrane filter for After the water is completed, the reverse osmosis membrane is immersed.
  • the pre-filter set includes a PPF filter filter, an activated carbon filter filter, and a PPF filter filter that are sequentially connected.
  • the front end of the high voltage switch is provided with a one-way valve.
  • a water flow sensor is disposed between the reverse osmosis membrane filter and the rear activated carbon filter.
  • a four-sided valve is disposed between the booster pump and the reverse osmosis membrane filter.
  • a water inlet solenoid valve is disposed between the PPF filter and the activated carbon filter.
  • the present invention has the following beneficial effects:
  • the invention adopts two measures of rapid transient pulse discharge flushing reverse osmosis membrane, pure water reflux washing and immersion protection reverse osmosis membrane, and the pure water machine is ensured in the case of ensuring high quality pure water output without damaging the reverse osmosis membrane.
  • the ratio of wastewater to pure water can be greatly increased from the wastewater of ordinary water machine 3: pure water 1 to wastewater 1: pure water 3 or more (depending on the water quality, wastewater 1: pure water 6 or more), the raw water utilization rate is less than 25% has increased significantly to over 75%.
  • the invention adopts a non-consumption bistable pulse electromagnetic valve and a large flow reverse osmosis membrane, and can realize a pure water machine without using a municipal power source or a booster pump in urban and rural areas where the tap water pressure is higher than 0.2 MPa. Under the condition of no electricity, micro-waste water discharges pure water, and in the case of ensuring water quality safety, it is more energy-saving and emission-reducing, which is in line with the requirements of building a conservation-oriented society in China.
  • Figure 1 is a general pure water mechanism water flow chart
  • Figure 2 is a flow chart of water production of a partial wastewater reflux pure water machine
  • FIG. 3 is a schematic diagram of a system according to an embodiment of the present invention.
  • Figure 4 is a schematic illustration of a system in accordance with a second embodiment of the present invention.
  • the reverse osmosis membrane (RO membrane) water purification technology has a filtration precision of up to 0.0001 ⁇ m, which can almost filter out all impurities and salts other than water.
  • the negative effect of the high-precision RO membrane is that it is easily filthy.
  • the RO membrane of the RO pure water machine must be produced while producing pure water. Ensure that a sufficient amount of raw water flushes the surface of the RO membrane, so a large amount of wastewater is generated.
  • the recommended raw water utilization rate of RO membrane produced by the famous Dow company in the United States is 15%. In the country, the pure water machine manufacturers use more Korean 'Shihan film', Japan 'Toray film' and domestic 'Huitong film', etc., the recommended raw water utilization rate is also about 25%.
  • a water purification system in the prior art, including: a water inlet tee connected in series through a pipe; Pre-filter group (composed of PPF filter element 8, activated carbon filter 10 and PPF filter 11 connected in sequence), booster pump 13, reverse osmosis membrane filter 15, high pressure switch 18, post-activated carbon filter
  • Pre-filter group composed of PPF filter element 8, activated carbon filter 10 and PPF filter 11 connected in sequence
  • booster pump 13 reverse osmosis membrane filter
  • high pressure switch 18 outlet is simultaneously connected to a water storage pressure tank 4 through a pipe.
  • the water making process of the ordinary pure water machine is that the pressurized water is filtered by the reverse osmosis membrane and then discharged from the central pipe of the membrane through the pure water end of the reverse osmosis membrane filter, and the waste water end maintains the uninterrupted wastewater discharge.
  • the wastewater is discharged by a constant flow wastewater proportional valve 16, and the waste water is discharged after the accumulation of the wastewater for a period of time to ensure the accumulation of dirt on the membrane.
  • This water production process, the raw water utilization rate is about 25%.
  • the “small wastewater” pure water mechanism water flow of some domestic manufacturers adds a wastewater reflux device to the process of the ordinary pure water machine, and introduces part of the wastewater into the inlet of the reverse osmosis membrane filter 15.
  • the constant-flow wastewater proportional valve 16 is removed, and the electromagnetic discharge valve 17 is used for intermittent sewage discharge, so that the discharged waste water is recycled, the waste water discharge is reduced, the raw water utilization rate is increased to 50% or higher, but the reverse osmosis membrane is becoming more and more
  • the high-concentration wastewater environment can not guarantee the quality of pure water production, and the damage to the reverse osmosis membrane is large, the fouling of the membrane is aggravated, and the service life is greatly shortened.
  • FIG. 3 is a water purification system according to an embodiment of the present invention, comprising: a water inlet tee connected in series through a pipeline; The pre-filter group, the booster pump 13, the reverse osmosis membrane filter 15, the post-activated carbon filter 19, the rear activated carbon filter outlet are connected to the water outlet 20 through the high-pressure switch 18, and the outlet of the reverse osmosis membrane filter is simultaneously passed.
  • the pipe is connected to a water storage pressure tank 4.
  • the reverse osmosis membrane filter outlet is provided with a waste water discharge pipe, and the pipe is provided with a pulse solenoid valve 14; the water storage pressure tank 4 returns a trace of pure water through a pipe and a check valve 22 to the front end of the reverse osmosis membrane filter 15 for After the water is completed, the reverse osmosis membrane is immersed.
  • the water-making process proposed by the present invention removes the constant-flow wastewater proportional valve, and the ordinary wastewater solenoid valve is switched to the pulse solenoid valve 14 with the opening and closing time within 0.1 second, and the intermittent pulse discharge is performed.
  • the rapid opening and closing of the solenoid valve produces a rapid flow of water to instantaneously flush the surface of the reverse osmosis membrane, rapidly removing the dirt deposit accumulated on the membrane, and achieving the purpose of effectively cleaning the reverse osmosis membrane with little flushing water consumption, thereby greatly reducing the generation of wastewater.
  • the ratio of waste water to pure water can be greatly increased from waste water 3: pure water 1 to waste water 1: pure water 3 or more (distillation can be done according to different water quality 1 : Pure water 6 or more), the raw water utilization rate has been greatly increased from less than 25% to more than 75%.
  • the specific flushing operation time is as follows: remove the solenoid valve opening and closing time, each flushing time is between 0.1 seconds and 1 second (0.3 seconds - 0.5 seconds is good) to generate a rapid and strong water flow, a single flushing time Too short can not completely remove the dirt deposit on the membrane. If the time is too long, it will not produce strong water flow, waste water and the washing effect is not good.
  • the interval between flushes is between 15 seconds and 45 seconds. This interval can be used as a tool to adjust the ratio of pure water to wastewater. In areas with good water quality or when customers require ultra-low wastewater discharge, the interval can be extended to save water.
  • the effect of pure water 5 wastewater 1 can be achieved and the reverse osmosis membrane does not exhibit a significant decrease in the discharge water flow rate.
  • the effect of pure water 6 wastewater 1 can be achieved, or even higher. In this way, in the southern regions where China's water quality is better, it is possible to increase the output of pure water, lower the wastewater discharge, and save a lot of valuable water sources in the case of large-scale use.
  • the present invention adds a pure water reflux device, and a water pipe is separated from the outlet of the external pressure tank 4 or the built-in filter cartridge type pressure tank of the straight drink machine, and the pure water is returned to the reverse osmosis membrane filter through the check valve 22.
  • the pure water is sent to the reverse osmosis membrane filter to soak the reverse osmosis membrane.
  • a check valve 5 is added at the front end of the high-pressure switch 18 to prevent the booster pump from frequently starting due to the pressure loss of the high-pressure switch when the pure water is returned after the water is completed.
  • the principle of increasing the reflux device is: when the reverse osmosis membrane is rapidly and instantaneously pulsed, the wastewater ratio is significantly decreased, but the concentrated water accumulated at the sewage discharge end of the reverse osmosis membrane is more, and the TDS value is increased significantly (especially the region where the raw water TDS value is high). Or it is more obvious when the raw water is used up to 75% or more.) After the production of water has stopped producing water for a period of time, the principle of static permeation of the reverse osmosis membrane will make the TDS value of the pure water end water high, which is not conducive to the production of high quality pure water.
  • the reverse osmosis membrane is washed and immersed through the clean pure water, and the TDS value of the wastewater end is significantly decreased, the possibility of penetration to the pure water end is greatly reduced, and the reverse osmosis membrane is also protected.
  • the service life of the reverse osmosis membrane is not shortened but extended, and the high-quality output of pure water is more secure.
  • FIG. 4 shows a second embodiment of the invention.
  • a water flow sensor 7 can be added to the pure water outlet end, and a four-sided valve 6 is added to the front end of the reverse osmosis membrane filter 15 to control the waterway system, and the water inlet solenoid valve and the sewage electromagnetic discharge.
  • the valves use non-power-consuming pulse solenoid valves and large-flow reverse osmosis membranes.
  • the municipal wastewater can be used without a booster pump to achieve micro-waste water in the pure water machine without electricity. Emission of pure water, more energy-saving emission reduction, in line with China's requirements for building a conservation-oriented society.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

La présente invention concerne un système de purification d'eau à microdécharge d'eaux usées à pulsation intense, comprenant une jonction en T d'entrée d'eau (1), un ensemble de filtre d'extrémité avant, une pompe soufflante (13), un filtre à membrane d'osmose inverse (15), et un filtre à charbon actif d'extrémité arrière (19) raccordé lui-même par l'intermédiaire d'une canalisation, une sortie du filtre à charbon actif d'extrémité arrière étant raccordée à une sortie d'eau (20) par l'intermédiaire d'un commutateur à haute pression (18), et une sortie du filtre à membrane d'osmose inverse étant simultanément raccordée à une cuve sous pression de stockage d'eau (4) par l'intermédiaire d'une canalisation, la sortie de filtre à membrane d'osmose inverse étant pourvue d'une canalisation de décharge d'eaux usées, et une vanne électromagnétique pulsée (14) est disposée sur la canalisation. La cuve sous pression de stockage d'eau lave à contre-courant une micro-quantité d'eau pure par l'intermédiaire d'une canalisation et d'un clapet antiretour (22) vers une extrémité avant du filtre à membrane d'osmose inverse (15) pour tremper la membrane d'osmose inverse une fois que la production d'eau est terminée. La présente invention augmente fortement le taux d'utilisation d'eau brute à 75 % ou plus par les deux mesures de drainage à impulsion rapide et temporaire pour purger la membrane d'osmose inverse, et laver à contre-courant l'eau pure pour rinçage et trempage pour protéger la membrane d'osmose inverse.
PCT/CN2014/074159 2014-03-05 2014-03-27 Système de purification d'eau à microdécharge d'eaux usées à pulsation intense Ceased WO2015131422A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410078645.7A CN103803736B (zh) 2014-01-15 2014-03-05 一种强脉冲微废水排放净水系统
CN201410078645.7 2014-03-05

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WO2015131422A1 true WO2015131422A1 (fr) 2015-09-11

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CN106495354A (zh) * 2017-01-05 2017-03-15 贺天山 一种可变换水量的纯水水路系统
CN106830400A (zh) * 2017-01-23 2017-06-13 上海六滴环保科技有限公司 一种具有停机静止时纯水泡膜功能的净水机
CN106830399A (zh) * 2017-01-23 2017-06-13 上海六滴环保科技有限公司 一种具有停机静止时纯水泡膜功能的新型净水机
CN107062916A (zh) * 2017-03-02 2017-08-18 杭州盛忆镐科技有限公司 一种中频炉专用水冷装置
CN107381721A (zh) * 2017-09-19 2017-11-24 北京四季沐歌太阳能技术集团有限公司 一种制水系统和净水机
CN108483579A (zh) * 2018-05-30 2018-09-04 郑州跃龙电子科技有限公司 一种适用于不同水源的净水冲洗反渗透膜的净水机
CN108726715A (zh) * 2018-07-25 2018-11-02 珠海格力电器股份有限公司 一种水处理系统以及净水设备
EP3398911A4 (fr) * 2017-03-07 2018-11-07 Foshan Shunde Midea Water Dispenser MFG. Co., Ltd. Système de filtration d'eau
CN108773920A (zh) * 2018-05-25 2018-11-09 珠海格力电器股份有限公司 一种净水系统、净水方法及装置
CN108793326A (zh) * 2017-04-27 2018-11-13 佛山市顺德区美的饮水机制造有限公司 净水系统及其控制方法
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CN109231532A (zh) * 2018-11-26 2019-01-18 上海凯矜新材料科技有限公司 净水器
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CN109879466A (zh) * 2019-04-03 2019-06-14 中山活水来智慧物联网有限责任公司 一种可自动冲洗的饮水机
US10392265B2 (en) 2017-03-07 2019-08-27 Foshan Shunde Midea Water Dispenser Mfg. Co., Ltd. Water filtration system
CN110255736A (zh) * 2019-06-26 2019-09-20 浙江艾波特环保科技股份有限公司 一种排放高tds值纯水的净水机及方法
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CN111606441A (zh) * 2020-06-10 2020-09-01 上海纯米电子科技有限公司 一种大通量净水机
CN111717961A (zh) * 2020-06-22 2020-09-29 青岛澳柯玛洁净科技有限公司 一种自吸式反渗透净水系统
CN111762949A (zh) * 2020-07-24 2020-10-13 核工业理化工程研究院 高效含硼废水处理系统
CN111960564A (zh) * 2020-09-10 2020-11-20 曹伟达 一种稳压无废水大流量反渗透净水器
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CN113121027A (zh) * 2019-12-30 2021-07-16 魏斯瓦瑟环境技术（嘉兴）有限公司 水处理系统和水处理方法
CN113735287A (zh) * 2020-05-27 2021-12-03 浙江绍兴苏泊尔生活电器有限公司 净水机以及用于净水机的控制方法
CN114162990A (zh) * 2020-12-10 2022-03-11 佛山市美的清湖净水设备有限公司 水路系统及具有其的台式净水设备
CN114262030A (zh) * 2021-12-29 2022-04-01 佛山市美的清湖净水设备有限公司 带有双tds探头的净水器
CN114262028A (zh) * 2021-12-29 2022-04-01 佛山市美的清湖净水设备有限公司 带有流量计和高压开关的净水器
CN114275920A (zh) * 2021-12-27 2022-04-05 珠海格力电器股份有限公司 一种净水机
CN114275855A (zh) * 2022-01-19 2022-04-05 上海朴道水汇环保科技股份有限公司 一种净水器过滤系统消除水锤效益的系统及方法
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Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106495354A (zh) * 2017-01-05 2017-03-15 贺天山 一种可变换水量的纯水水路系统
CN106830400A (zh) * 2017-01-23 2017-06-13 上海六滴环保科技有限公司 一种具有停机静止时纯水泡膜功能的净水机
CN106830399A (zh) * 2017-01-23 2017-06-13 上海六滴环保科技有限公司 一种具有停机静止时纯水泡膜功能的新型净水机
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