CN103803736B - Strong-pulse micro-wastewater emission and purification system - Google Patents

Strong-pulse micro-wastewater emission and purification system Download PDF

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CN103803736B
CN103803736B CN201410078645.7A CN201410078645A CN103803736B CN 103803736 B CN103803736 B CN 103803736B CN 201410078645 A CN201410078645 A CN 201410078645A CN 103803736 B CN103803736 B CN 103803736B
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water
reverse osmosis
osmosis membrane
pipeline
outlet
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CN103803736A (en
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杨瀚
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Shenzhen Royal pulse Membrane Technology Co., Ltd.
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SHENZHEN WATERFROM TECHNOLOGY Ltd
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Abstract

The invention discloses a strong-pulse micro-wastewater emission and purification system which comprises a water inlet tee joint (1), a front filter group, a booster pump (13), a reverse osmosis membrane filter (15), and a rear active carbon filter (19) which are sequentially connected through a pipeline, wherein an outlet of the rear active carbon filter is connected with a water outlet (20) through a high-pressure switch (18), an outlet of the reverse osmosis membrane filter is connected with a water storage pressure barrel (4) through a pipeline, a wastewater discharge pipeline is arranged at an outlet of the reverse osmosis membrane filter, a pulse electromagnetic valve (14) is arranged on the pipeline, and after the water storage pressure barrel reflows trace pure water to the front end of the reverse osmosis membrane filter (15) through a pipeline and a one-way valve (22) and after the trace pure water is produced, a reverse osmosis membrane is soaked. According to the strong-pulse micro-wastewater emission and purification system, through two measures of rapid instant pulse pollution discharging and washing of the reverse osmosis membrane and pure water reflowing and washing and soaking and protecting of the reverse osmosis membrane, the raw water utilization rate is greatly increased to above 75 percent.

Description

The micro-discharge of wastewater water cleaning systems of a kind of strong pulse
Technical field
The present invention relates to water-purifying machine, particularly relate to the micro-discharge of wastewater water cleaning systems of a kind of strong pulse.
Background technology
China most cities with III class surface water, Rural areas mainly with IV class underground water for drinking water source, along with pollute aggravation, the problems such as two worms (giardia lamblia stiles, Cryptosporidium), blue-green algae, heavy metals exceeding standard, town and country drinking water safety in serious threat.Therefore, surface water, underground water have to pass through purification and could use as tap water.Present family expenses, commercial drinking water treatment technological core mainly membrane filtration technique.Wherein one is ultrafiltration membrance filter, pore size filter is 0.01 micron, whole muddy things can be removed (as silt, iron rust etc.), pathogenic microorganism is (as parasite, bacterium, virus etc.), also most larger molecular organics can be removed, do not need electricity consumption simultaneously, do not produce waste water, relatively be applicable to the good city of southern china water-quality ratio, but because the organic compound in water cannot be removed, radioactive radon, the multiple harmful or carcinogenic substance such as arsenic and lead, the heavy metal ion such as mercury, in the poor northern area of water-quality ratio and vast rural area, just cannot meet the drinking water treatment demand of safety and Health.Another kind is reverse osmosis membrane filtration, and filtration openings footpath is 0.0001 micron, can remove all objectionable impuritiess in water completely, and only retain water molecules output pure water, suitability is wide, is the main force of water treatment at the vast both urban and rural area of China.But with the water purification machine of reverse osmosis membrane because the principle of work of reverse osmosis membrane, need to discharge a large amount of waste water (condensed water) in the process of producing pure water, by the impact of water temperature, water quality, a pure water of output needs to emit 3-5 part waste water.The present situation of the surprising waste water of this output requires to deviate from mutually with the domestic scientific development advocated and " energy-conservation, lower consumption " of building a conservation-minded society.
Although domestic a lot of people carries out secondary returning use the waste water that traditional water purification machine discharges, the water quality of this recovery and the mode of recovery all the time can not be fully up to expectations.Partially purifying water device producer within nearly 2 years, is also had to release " few waste water " water purification machine, principle the wastewater streams of water process discharge processed is got back to reverse osmosis membrane front end recycle, reverse osmosis membrane is run for a long time under high-concentration waste water surrounding, also speed is blocked up in the dirt accelerating reverse osmosis membrane while of reducing the quality of pure water output, and the work-ing life of reverse osmosis membrane is shortened dramatically.Practice makes us recognize: the common ultrafilter of " water-saving " is because use limitation to make it be difficult to cover each area of Chinese complicated water quality, and the RO water purification machine of " water wasting " is more not suitable for the Chinese spread in " lack of water ".Therefore, " water-saving technology " innovation and products innovation must be carried out.
Summary of the invention
The object of the invention is the defect existed for above-mentioned prior art, provide a kind of strong pulse micro-discharge of wastewater water cleaning systems.
The micro-discharge of wastewater water cleaning systems of strong pulse of the present invention's design comprises: successively by inlet triplet for water, fore filter group, topping-up pump, reverse osmosis membrane filt and Postposition carbon filter that pipeline connects, described Postposition carbon filter outlet is connected with water outlet by high-voltage switch gear, import is connected with a Pressured water tank by pipeline, wherein, described reverse osmosis membrane filt outlet is provided with discharge of wastewater pipeline, and this pipeline is provided with an impulse electromagnetic valve; Described Pressured water tank refluxes the front end of micro-pure water to reverse osmosis membrane filt for after water processed by a pipeline and check valve, soaks reverse osmosis membrane.
Described fore filter group comprises the PPF candle filter, active carbon filter core strainer and the PPF candle filter that connect successively.
In one embodiment, described high-voltage switch gear front end arranges a check valve.A water flow sensing unit is provided with between described reverse osmosis membrane filt and post active carbon filter for molten.A four-sided valve is provided with between described topping-up pump and reverse osmosis membrane filt.An entering water electromagnetic valve is provided with between described PPF strainer and activated charcoal filter.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention is by reverse osmosis membrane is rinsed in momentary impulse blowdown rapidly, two measures of protection reverse osmosis membrane are soaked in pure water backflow flushing; when ensureing that pure water high quality output does not damage again reverse osmosis membrane simultaneously; make the ratio of the waste water of water purification machine and pure water can by the waste water 3 of common water purification machine: pure water 1 significantly brings up to waste water 1: pure water more than 3 (can accomplish waste water 1 according to water quality is different: pure water more than 6), former water use efficiency from less than 25% significantly bring up to more than 75%.
2, the present invention is by adopting bi-stable pulse electromagnetic valve and the large discharge reverse osmosis membrane of not power consumption, at the both urban and rural area of tap water hydraulic higher than 0.2 MPa, can municipal power supply, without topping-up pump, realize water purification machine without discharge of wastewater output pure water micro-under electric condition, when ensureing water quality safety, more accomplish energy-saving and emission-reduction, meet the requirement that China builds a conservation-minded society.
Accompanying drawing explanation
Fig. 1 is common pure water mechanism Water flow-path figure;
Fig. 2 is the Water flow-path figure processed of effluent part backflow water purification machine;
Fig. 3 is the system schematic of one embodiment of the invention;
Fig. 4 is the system schematic of second embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described in detail.
The filtering accuracy of reverse osmosis membrane (RO film) water purification technology, up to 0.0001 micron, almost can filter all impurity than water and salt.But the negative effect of high precision RO film is it is very easily blocked up by dirt, blocked up by dirt for preventing RO film, ensure that RO film produces the patency of film in water process, the RO film of RO water purification machine must ensure that while producing pure water enough former water rinses RO film surface, so can produce a large amount of waste water.The former water use efficiency recommendation of RO film that the Dow Chemical Company of famous American produces is 15%.At home, water purification machine producer uses more Korea S's " Saehan film ", Japan " eastern beautiful film " and domestic " Correspondent film " etc., and the former water use efficiency of recommendation is also about 25%.
Fig. 1 shows water cleaning systems of the prior art, comprise: the inlet triplet for water 1 connected by pipeline successively, fore filter group (being made up of the PPF candle filter 8 connected successively, active carbon filter core strainer 10 and PPF candle filter 11), topping-up pump 13, reverse osmosis membrane filt 15, high-voltage switch gear 18, Postposition carbon filter 19, Postposition carbon filter outlet and water outlet 20, such as tap connects, and high-voltage switch gear 18 is exported and is connected with a Pressured water tank 4 by pipeline simultaneously.
As shown in Figure 1, the Water flow-path processed of common water purification machine is that the water after pressurizeing is flowed out by the pure water end of the pipe core of film through reverse osmosis membrane filt after reverse osmosis membrane filtration, waste water end keeps uninterrupted discharge of wastewater, waste water is discharged by the waste water proportional valve 16 of a constant rate, after the discharge of accumulation for some time waste water ratio, add Wastewater by Electric magnet valve 17 discharge, to ensure the accumulation removing dirt on film.This Water flow-path processed, former water use efficiency is about 25%.
As shown in Figure 2, " few waste water " pure water mechanism Water flow-path of Some Domestic producer is in the flow process of common water purification machine, add a return of waste water device, effluent part is introduced the entrance of reverse osmosis membrane filt 15, eliminate the waste water proportional valve 16 of constant rate, discontinuous blowdown is carried out with magnetic valve 17, make the cycling utilization of wastewater of discharge, decrease discharge of wastewater, former water use efficiency is brought up to 50% even higher, but reverse osmosis membrane can not ensure the output quality of pure water under more and more higher high-concentration waste water surrounding, simultaneously very large to the damage of reverse osmosis membrane, the dirt of film is stifled to be increased the weight of, work-ing life shortens greatly.
Fig. 3 is the water cleaning systems of one embodiment of the invention display, comprise: successively by inlet triplet for water 1, fore filter group, topping-up pump 13, reverse osmosis membrane filt 15, Postposition carbon filter 19 that pipeline connects, Postposition carbon filter outlet is connected with water outlet 20 by high-voltage switch gear 18, and the outlet of reverse osmosis membrane filt is connected with a Pressured water tank 4 by pipeline simultaneously.Wherein, reverse osmosis membrane filt outlet is provided with discharge of wastewater pipeline, and this pipeline is provided with an impulse electromagnetic valve 14; Pressured water tank 4 refluxes the front end of micro-pure water to reverse osmosis membrane filt 15 for after water processed by a pipeline and check valve 22, soaks reverse osmosis membrane.
As shown in Figure 3, the Water flow-path processed that the present invention proposes eliminates the waste water proportional valve of constant rate, common Wastewater by Electric magnet valve is used instead unlatching, the making time impulse electromagnetic valve 14 within 0.1 second, use discontinuous pulse sewage discharge, the closed instantaneous flushing reverse osmosis membrane surface of current produced rapidly is opened fast by magnetic valve, the scale precipitation that quick removal film accumulates, reaches the object of effectively cleaning reverse osmosis membrane, significantly decreases the generation of waste water with few wash water amount.Compared with common water purification machine, adopt the blowdown of momentary impulse rapidly of present system, the ratio of waste water and pure water can by waste water 3: pure water 1 significantly brings up to waste water 1: pure water more than 3 (can accomplish waste water 1 according to water quality is different: pure water more than 6), former water use efficiency significantly brings up to more than 75% from less than 25%.
Wherein, the concrete flushing operation time is as follows: removing magnetic valve is opened, making time, time of each flushing between 0.1 second to 1 second (0.3 second-0.5 second as well) to produce current powerful rapidly, the too short scale precipitation can not removed completely on film of single flush time, time is oversize, can not produce powerful current, waste water and also developing result not good.Each flushing interval time is between 15 seconds to 45 seconds.This interval time can as the instrument of ratio regulating pure water and waste water, water quality preferably area or customer requirement ultralow discharge of wastewater time, can by prolongation interval time with the object reaching water-saving.Reach the test of more than 10 tons according to the output pure water that operates continuously, the area within former water TDS value 500, can accomplish pure water 5: the phenomenon that water flow obviously reduces does not appear in the effect of waste water 1 and reverse osmosis membrane.Area within former water TDS value is lower than 300, can accomplish pure water 6: the effect of waste water 1, even higher.Like this, in the good southern area of Chinese water quality, can be higher heighten pure water output, turn down discharge of wastewater, save a large amount of valuable water sources when big area uses.
As shown in Figure 3, invention increases pure water reflux, a water pipe is punished out at external placed type pressure pot 4 or straight drink machine built-in filer element type pressure pot water outlet, by check valve 22, pure water is back to reverse osmosis membrane filt 15 front end, after water processed, pure water is transported in reverse osmosis membrane filt and soaks reverse osmosis membrane.Simultaneously increase a check valve 5 in high-voltage switch gear 18 front end, because high-voltage switch gear decompression causes topping-up pump frequent starting during to prevent that pure water refluxes after water processed.The principle increasing this reflux is: reverse osmosis membrane rapidly momentary impulse blowdown time, waste water ratio significantly declines, but the dense water of reverse osmosis membrane blowdown end accumulation is more, TDS value rises comparatively greatly (area that particularly former water TDS value is high or promote when former water conservancy is used more than 75% more obvious).After full water processed stops producing water for some time, it is higher that the static penetration theory of reverse osmosis membrane can make pure water bring out water TDS value, is unfavorable for the output of high quality pure water.By this pure water reflux, reverse osmosis membrane is after water processed terminates, and via pure water rinsing, the immersion of cleaning, the TDS value of waste water end significantly declines, and significantly reduces the possibility to the infiltration of pure water end, also protects reverse osmosis membrane simultaneously.Compared with " few waste water " water purification machine reaching water-saving object to reverse osmosis membrane front end with other return of waste waters, the work-ing life of reverse osmosis membrane does not only shorten and is extended on the contrary, and the high-quality output of pure water is also more secure.
Fig. 4 shows second embodiment of the present invention.In this embodiment, a water flow sensing unit 7 can be increased in pure water water side, simultaneously increase a four-sided valve 6 in reverse osmosis membrane filt 15 front end that intakes, water circuit system is controlled with computer board, entering water electromagnetic valve and blowoff electromagnetic valve all adopt impulse electromagnetic valve and the large discharge reverse osmosis membrane of not power consumption simultaneously, at the both urban and rural area of tap water hydraulic higher than 0.2 MPa, can municipal power supply, without topping-up pump, realize water purification machine without discharge of wastewater output pure water micro-under electric condition, more accomplish energy-saving and emission-reduction, meet the requirement that China builds a conservation-minded society.
Above-described embodiment is only for illustration of the specific embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and change, these distortion and change all should belong to protection scope of the present invention.

Claims (7)

1. the micro-discharge of wastewater water cleaning systems of strong pulse, comprise: successively by inlet triplet for water (1) that pipeline connects, fore filter group, topping-up pump (13), reverse osmosis membrane filt (15) and Postposition carbon filter (19), described Postposition carbon filter outlet is connected with water outlet (20) by high-voltage switch gear (18), the outlet of reverse osmosis membrane filt is connected with a Pressured water tank (4) by pipeline simultaneously, it is characterized in that, described reverse osmosis membrane filt outlet is provided with discharge of wastewater pipeline, this pipeline is provided with an impulse electromagnetic valve (14), described Pressured water tank to be refluxed the front end of micro-pure water to reverse osmosis membrane filt (15) by a pipeline and check valve (22),
The unlatching of described impulse electromagnetic valve (14), making time are 0.1 second;
The time that described impulse electromagnetic valve (14) rinses at every turn, between 0.1 second to 1 second, rinses interval time between 15 seconds to 45 seconds at every turn;
The waste water of described pulse sewage discharge is greater than 1 to 3 with the ratio of pure water.
2. water cleaning systems as claimed in claim 1, is characterized in that: described high-voltage switch gear (18) front end arranges a check valve (5).
3. water cleaning systems as claimed in claim 1, is characterized in that: described fore filter group comprises the PPF candle filter (8), active carbon filter core strainer (10) and the PPF candle filter (11) that connect successively.
4. water cleaning systems as claimed in claim 1, is characterized in that: be provided with a water flow sensing unit (7) between described reverse osmosis membrane filt (15) and post active carbon filter for molten (19).
5. water cleaning systems as claimed in claim 1, is characterized in that: be provided with a four-sided valve (6) between described topping-up pump (13) and reverse osmosis membrane filt (15).
6. water cleaning systems as claimed in claim 3, is characterized in that: be provided with an entering water electromagnetic valve (9) between described PPF candle filter (8) and active carbon filter core strainer (10).
7. water cleaning systems as claimed in claim 1, is characterized in that: described topping-up pump (13) is connected with a transformer (12).
CN201410078645.7A 2014-01-15 2014-03-05 Strong-pulse micro-wastewater emission and purification system Active CN103803736B (en)

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PCT/CN2014/074159 WO2015131422A1 (en) 2014-03-05 2014-03-27 Intense pulsation micro wastewater discharge water purification system

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CN103803736B (en) * 2014-01-15 2015-04-15 深圳澳特弗科技有限公司 Strong-pulse micro-wastewater emission and purification system
CN104607050A (en) * 2014-12-30 2015-05-13 广东艾沃科技有限公司 Pulse washing method of reverse osmosis membrane of water purifier
CN105152378A (en) * 2015-09-14 2015-12-16 珠海格力电器股份有限公司 Water purifier with pure water reflux device
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CN106861441B (en) * 2017-03-29 2020-02-21 海南立昇净水科技实业有限公司 Method and device for cleaning water purification membrane module
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Effective date of registration: 20190426

Address after: 518000 3/F, Building C, 6 Shamiao Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen City, Guangdong Province

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Patentee before: SHENZHEN WATERFROM TECHNOLOGY LIMITED