CN104944621A - Portable grading water treatment device and water treatment method - Google Patents
Portable grading water treatment device and water treatment method Download PDFInfo
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- CN104944621A CN104944621A CN201510406248.2A CN201510406248A CN104944621A CN 104944621 A CN104944621 A CN 104944621A CN 201510406248 A CN201510406248 A CN 201510406248A CN 104944621 A CN104944621 A CN 104944621A
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Abstract
The invention relates to a portable grading water treatment device and a water treatment method. The device comprises a main filter element set, a water storage bucket, an air pump, a reverse osmosis filter element set and one-way valves, and the main filter element set, the water storage bucket, the air pump, the reverse osmosis filter element set and the one-way valves are connected through pipelines. When air in the water storage bucket is pumped out by the air pump, water flow is attracted by negative air pressure to enter the water storage bucket from the main filter element set and the one-way valves, and when the air pump compresses air to provide positive air pressure for the water storage bucket, air pressure in the water storage bucket to push stored water to enter the reverse osmosis filter element set through the one-way valves, and water close to pure water is output after reverse osmosis filtering. Preferably, the one-way valves connected with the water storage bucket are included, concentrated water flow of a reverse osmosis filter element and pure water are controlled by a four-face valve to flow synchronously, and a method for flushing the filter element is included. Work power is provided by the air pump, no other energy is needed due to the manual air pump, and high-quality graded water supply is achieved through field water resources under the conditions of fields, disaster areas and battle fields and other emergency circumstances.
Description
Technical field
The present invention relates to water-treatment technology field, particularly relate to a kind of portable classification water treatment device and water treatment method.
Background technology
In the wild under condition, clean water source is of great rarity, in the situations such as disaster area, battlefield, rescue, field medical, field inhabitation, from obtaining cleaning contaminated water source, nontoxic have important Practical significance with glassware for drinking water.In addition, along with environmental pollution is day by day serious, heavy metal in the water source polluted, organism, various viral germ greatly endanger the health of people, the use shipwreck that existing filtering technique provides is to meet the demands, in the urgent need to a kind of good filtration effect under field conditions, energy consumption is low, hold portative water treatment device and technology.
Ultra-filtration technique and reverse osmosis technology are because good filtration effect, and be widely accepted, wherein ultra-filtration membrane can filter the impurity of more than 0.01 micron in theory, flushable, the life-span is long, and cost is low.Reverse osmosis technology utilizes the principle of reverse osmosis, substantially can remove almost most of impurity such as the heavy metal be dissolved in water, virus, salt, provides clean and that safety standards is very high water supply.Two kinds of modes combined, ultra-filtration element can provide the water inlet of high-quality for reverse osmosis filter core, greatly improves life-span and the filter effect of reverse osmosis filter core, provides the water supply of more high-quality.
Summary of the invention
The object of this invention is to provide a kind of portable classification water treatment device and water treatment method, can most of water source be utilized to provide high quality water supply by stage under condition in the wild, ensure that clean drinking water under field conditions, medical treatment, war preparedness water need.
Technical scheme of the present invention is for achieving the above object:
A kind of portable classification water treatment device, comprises the main filter core group, water butt (106), air pump (105), the reverse osmosis filter core group that connect with pipeline; Be provided with check valve (112) between described main filter core group and water butt (106), between described reverse osmosis filter core group and water butt (106), be provided with check valve (114); Described air pump (105) is connected with water butt (106).
Described main filter core group comprises coarse filtration filter core (101), ultrafiltration membrane filter element (102), absorbs filter core (103), its mode of connection is: the water outlet of described coarse filtration filter core (101) is connected with ultrafiltration membrane filter element (102) water-in, the filtering water outlet of ultrafiltration membrane filter element (102) is connected with the water-in absorbing filter core (103), and the water outlet absorbing filter core (103) is connected with water butt (106) by check valve (112).
Described reverse osmosis filter core group comprises reverse osmosis filter core (107), four-sided valve (109), concentrated valve (116), its mode of connection is: water butt (106) is connected to the water-in of reverse osmosis filter core (107) by check valve (114), the outlet of the condensed water of reverse osmosis filter core (107) by the condensed water expanding channels of four-sided valve (109) to concentrated water valve (116); The water purification expanding channels of the pure water inlet of reverse osmosis filter core and four-sided valve (109).
Described air pump (105) is connected with water butt (106), can pressurized air be provide high atmospheric pressure in water butt (106), or extracts the air in water butt (106) out, provides negative pressure; Described air pump (105) can be hand air pump, or electric air pump or other power air pumps.
Described four-sided valve (109) comprises two water stream channels, is respectively water purification passage and condensed water passage; Wherein water purification feeder connection is connected with the pure water inlet of reverse osmosis filter core (107), and water purification channel outlet is connected with water valve (115); Condensed water feeder connection exports with the condensed water of reverse osmosis filter core (107) and is connected, and condensed water channel outlet is connected with concentrated water valve (116).
For realizing the present invention better, as what optimize: the water outlet of check valve (112) is connected with water butt (106), non-return valve operational direction is allow current by the absorption filter core (103) of described main filter core group to water butt (106) uniflux; The water-in of check valve (114) is connected with water butt (106), and non-return valve operational direction is for allowing current by water butt (106) to reverse osmosis filter core (107) uniflux.
For realizing the present invention better, as what optimize: the condensed water outlet of reverse osmosis filter core (107) is connected with feed water valve (117) simultaneously.
For realizing the present invention better, as what optimize: described flush valve (113) two ends are connected with check valve (112) water-in and water outlet respectively, are connected in parallel on check valve (112) two ends.
The present invention also comprises a kind of water treatment method, and concrete steps are as follows:
(1) water-in of main filter core group is put into water source;
(2) air in water butt (106) extracted out by air pump (105), produces negative pressure;
(3) negative pressure attracts source water to flow into main filter core group; After main filter core group is filtered, flow into water butt (106) by check valve (112);
(4), when needing to supply water, air pump (105) pressurizes to water butt (106);
(5) air pressure in water butt (106) drives the water of storage outwardly, and check valve (112) stops the main filter core group flowing of current direction, and check valve (114) allows water to flow out, and realization is supplied water.
The present invention also comprises a kind of water treatment method, and concrete steps are as follows:
(1) certain water yield is had in water butt (106);
(2) air pump (105) is water butt (106) inflating pressure;
(3) high atmospheric pressure in water butt (106) drives current to flow to reverse osmosis filter core (107) by check valve (114), and the water after osmosis filtration flows out from the pure water inlet of reverse osmosis filter core (107), and remaining condensed water flows out from condensed water outlet;
(4) also comprise as the rate-determining steps optimized: the water after reverse osmosis filter core (107) filters enters the water purification passage of four-sided valve (109), the condensed water of reverse osmosis filter core (107) enters the condensed water passage of four-sided valve (109), the opening and closing association of two passages; Water purification expanding channels feed water valve (115), when feed water valve (115) open, water purification passage have current by time, condensed water passage is opened simultaneously, makes condensed water flow into concentrated water valve (116);
(5) also comprise as the rate-determining steps optimized: concentrated water valve (116) controls condensed water take-off rate, thus realize the outflow ratio of filtering water purification and condensed water.
The present invention also comprises a kind of method of filter cartridge flushing group, and step is as follows:
(1) certain water yield is had in water butt (106);
(2) air pump (105) is to inflating pressure in water butt 106;
(3) open flush valve 113, air pressure promotes the main filter core group of current counterflush, is fallen by the wash dirt that cartridge surface is tackled, and improves filter effect.
The air pressure that the present invention relies on air pump to provide is operation power, when air pump provides negative pressure for water butt, vacuum suction current by coarse filtration through ultra-filtration element and absorb filter core and check valve and enter water butt, because the filter effect of prime ultrafiltration membrane filter element reaches 0.01 micron level, so in comparatively clean water source situation, filtration water purification can be provided in a large number; If pollution of waterhead is heavier, or need the water purification that higher standard is provided, then use air pump to continue as water butt and positive air pressure is provided, drive current to enter reverse osmosis filter core by check valve, provide close to pure water source after filtering; If use hand air pump, filter water purification or the water supply close to pure water when can provide high quality without the need to the present invention when other energy.
Beneficial effect of the present invention comprises:
1, the needs under field or contingency condition are adapted to.Compact of the present invention, structure is simple, be easy to carry, and is very applicable to the promptly various and needs that temporarily supply water;
2, without the need to the energy or only need finite energy resource to produce water purification.The present invention take air pump as power, filtration water purification can be produced without the need to other power when using hand air pump, as used electric air pump also can meet continuous seepage needs, in the wild, battlefield, disaster area etc. in emergency circumstances provide high-quality filter feeding, meets water supply requirement.
3, filter effect is better.The present invention filters prime and adopts ultrafiltration membrane filter element, the most particles, bacterium, impurity, microorganism etc. that are greater than 0.01 micron can be filtered out in water, can provide life required common filtered water on the one hand in a large number, more clean water supply can be provided on the one hand for reverse osmosis filter core, reverse osmosis filter core filters out the heavy metal be dissolved in water, salt, virus etc. on ultrafiltration basis, there is provided pure, safe water supply, such water supply by stage can meet most high quality water demand.
4, filter core is long for duration of service, and replacement cost is low.Coarse filtration of the present invention filters out a large amount of impurity, and ultra-filtration element filters meticulous, substantially increases the work-ing life of rear class reverse osmosis filter core.In addition, the water of drawing from the outlet of reverse osmosis filter core condensed water both can be used as the use of ultra filtration drainage, rinsed reverse osmosis filter core again simultaneously, substantially increased the work-ing life of reverse osmosis filter core.Working life is generally more than the several years with this understanding for ultrafiltration membrane filter element, and reverse osmosis filter element life also other same devices far super of collocation like this, also greatly reduce cost and the time of user's maintenance.
In sum, the present invention can in the wild under condition for disaster area, war preparedness, camp or provide high quality to supply water in other field situations, and long service life, wide accommodation, effectively can extract reliable water source for urgent in pollution, infection, harmful water source, there is very important value.
accompanying drawing illustrates:
Fig. 1: structural representation of the present invention
Reference numeral is wherein: coarse filtration filter core (101), ultrafiltration membrane filter element (102), absorb filter core (103), check valve (112) and check valve (114), flush valve (113), water butt (106), air pump (105), reverse osmosis filter core (107), four-sided valve (109), concentrate valve (116), feed water valve (115) and feed water valve (117).
embodiment:
By reference to the accompanying drawings the present invention is described in further detail by the following examples, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1, the present invention includes the main filter core group, water butt (106), air pump (105), the reverse osmosis filter core group that connect with pipeline; Be provided with check valve (112) between described main filter core group and water butt (106), between described reverse osmosis filter core group and water butt (106), be provided with check valve (114); Described air pump (105) is connected with water butt (106).
Described main filter core group comprises coarse filtration filter core (101), ultrafiltration membrane filter element (102), absorbs filter core (103), its mode of connection is: the water outlet of described coarse filtration filter core (101) is connected with ultrafiltration membrane filter element (102) water-in, the filtering water outlet of ultrafiltration membrane filter element (102) is connected with the water-in absorbing filter core (103), and the water outlet absorbing filter core (103) is connected with water butt (106) by check valve (112).
Described coarse filtration filter core (101) is made up of pore size filter material such as wire netting, coarse filtration material that is cotton and other larger pore size filters, filters out larger particles impurity in water;
Described ultrafiltration membrane filter element (102) uses ultrafiltration membrane material as filter core, ultrafiltration membrane material can filter out macromole and small-particle in water, filter effect is meticulous, can filter out the particle more than more than 0.01 micron in water in theory, is main filtration filter core in main filter core group.
Described reverse osmosis filter core group comprises reverse osmosis filter core (107), four-sided valve (109), concentrated valve (116), its mode of connection is: water butt (106) is connected to the water-in of reverse osmosis filter core (107) by check valve (114), the outlet of the condensed water of reverse osmosis filter core (107) by the condensed water expanding channels of four-sided valve (109) to concentrated water valve (116); The water purification expanding channels of the pure water inlet of reverse osmosis filter core and four-sided valve (109).
Described reverse osmosis filter core 107 uses reverse osmosis membrane as filter core, reverse osmosis membrane is according to principle of reverse osmosis, under pressurized condition, inverse osmosis carries out meticulousr filtration, the salt of the macromole in water, heavy metal, dissolving is all isolated in condensed water, water after osmosis filtration is very pure, hereinafter referred to as water purification.
Described air pump (105) is connected with water butt 106, can pressurized air for providing high atmospheric pressure in water butt 106, or extract the air in water butt 106 out, negative pressure be provided; Described air pump (105) can be hand air pump, or electric air pump or other power air pumps.
Described four-sided valve (109) comprises two water stream channels, is respectively water purification passage and condensed water passage; Wherein water purification feeder connection is connected with the pure water inlet of reverse osmosis filter core (107), and water purification channel outlet is connected with water valve (115); Condensed water feeder connection exports with the condensed water of reverse osmosis filter core (107) and is connected, and condensed water channel outlet is connected with concentrated water valve (116).
For realizing the present invention better, as what optimize: the water outlet of check valve (112) is connected with water butt (106), non-return valve operational direction is allow current by the absorption filter core (103) of described main filter core group to water butt (106) uniflux; The water-in of check valve (114) is connected with water butt (106), and non-return valve operational direction is for allowing current by water butt (106) to reverse osmosis filter core (107) uniflux.
For realizing the present invention better, as what optimize: the condensed water outlet of reverse osmosis filter core (107) is connected with feed water valve (117) simultaneously.
For realizing the present invention better, as what optimize: described flush valve (113) two ends are connected with check valve (112) water-in and water outlet respectively, are connected in parallel on check valve (112) two ends.
The concrete steps of water treatment method are as follows:
1. the step of water treatment method is:
(1) water-in of main filter core group is put into water source;
(2) air in water butt (106) extracted out by air pump (105), produces the negative pressure lower than barometric point;
(3) negative pressure is stoped by check valve 114 and transmits to reverse osmosis filter core group, and negative pressure is transmitted to main filter core group by check valve (112) simultaneously;
(4) negative pressure attracts current to flow into main filter core group, after coarse filtration filter core (101), ultrafiltration membrane filter element 102, absorption filter core 103 filter, flows into water butt (106) by check valve (112);
The filtration procedure of main filter core group is: negative pressure attracts current to be progressively delivered to coarse filtration filter core (101) by absorption filter core (103), ultrafiltration membrane filter element (102); Negative pressure in coarse filtration filter core (101) attracts source water to flow through, after filtering out most of large granular impurity simultaneously, flow into ultrafiltration membrane filter element (102), ultrafiltration membrane filter element (102) filters out in water more than the impurity of 0.01 micron, microorganism, worm's ovum, bacterium etc.; Current after ultrafiltration membrane filter element (102) filters enter and absorb filter core (103), and the pigment that the absorbing material absorbing filter core (103) dissolves in water as gac etc. sponges or other solvents, provide cleaner water supply; Current, by after absorption filter core (103), flow out main filter core group, through check valve (112), enter water butt (106);
(5), when needing to supply water, air pump (105) pressurizes to water butt (106);
(6) air pressure in water butt (106) drives the water of storage outwardly, and check valve (112) stops the main filter core flow of current direction, and check valve (114) allows water to flow out, and realizes water supply;
(7) in the present embodiment, the condensed water outlet of reverse osmosis filter core (107) connects feed water valve (117) simultaneously, when feed water valve (117) is opened, water in water butt is directly flowed out by feed water valve (117), the water after ultrafiltration membrance filter stored in water butt, rinse reverse osmosis membrane simultaneously, improve the life-span of reverse osmosis filter core group.
2. the concrete steps of the water treatment method of osmosis filtration are:
(1) certain water yield is sucked in water butt (106);
(2) air pressurized is charged into water butt (106) by air pump (105);
(3) high atmospheric pressure in water butt (106) by the water that stores in bucket to external pressure, check valve (112) stops the main filter core group of current direction in water butt, check valve (114) allows the current direction reverse osmosis filter core (107) in water butt, when pressure is higher than reverse osmotic pressure, after water passes through reverse osmosis membrane filtration under pressure-driven, flow out from the pure water inlet of reverse osmosis filter core (107), after reverse osmosis membrane filtration, remaining condensed water flows out from condensed water outlet, the water purification exported after osmosis filtration eliminates heavy metal, virus, bacterium, and most salt, can as high-quality tap water, or be laboratory, hospitals etc. provide high-quality water purification.
(4) have as the step optimized: the water after reverse osmosis filter core (107) filters enters the water purification passage of four-sided valve (109), and the condensed water of reverse osmosis filter core 107 enters the condensed water passage of four-sided valve (109), the opening and closing association of two passages; Water purification expanding channels feed water valve (115), when feed water valve (115) open, water purification passage have current by time, condensed water passage is opened simultaneously, makes condensed water flow into concentrated water valve (116).
(5) concentrated water valve (116) controls condensed water take-off rate, thus realizes the outflow ratio of filtering water purification and condensed water.
(6) feed water valve (115) provides the water purification after osmosis filtration, for the occasion of high quality water demand, in the wild with under contingency condition, can be applicable to battlefield medicine, the special pure water supply in field.
3. the concrete steps of the method for filter cartridge flushing are:
(1) certain water yield is had in water butt (106);
(2) air pump (105) is to water butt (106) interior inflating pressure;
(3) open flush valve (113), air pressure promotes absorption filter core (103), ultrafiltration membrane filter element (102), coarse filtration filter core (101) in the main filter core group of current counterflush, is fallen by the wash dirt that cartridge surface is tackled, and improves filter effect.
The air pressure that the present invention relies on air pump to provide is operation power, if use hand air pump, when without the need to providing high quality to filter water purification or the water supply close to pure water when other energy.
The above; it is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention; everyly according to technical spirit of the present invention, any simple modification is done to above example; equivalent variations; such as the filter core quantity of main filter core group, filter core are put in order, the increase and decrease of filter core kind optimizes, all fall in scope.
Claims (10)
1. a portable classification water treatment device, is characterized in that: comprise the main filter core group, water butt (106), air pump (105), the reverse osmosis filter core group that connect with pipeline; Be provided with check valve (112) between described main filter core group and water butt (106), between described reverse osmosis filter core group and water butt (106), be provided with check valve (114); Described air pump (105) is connected with water butt (106).
2. device according to claim 1, it is characterized in that: described main filter core group comprises coarse filtration filter core (101), ultrafiltration membrane filter element (102), absorbs filter core (103), its mode of connection is: the water outlet of described coarse filtration filter core (101) is connected with ultrafiltration membrane filter element (102) water-in, the filtering water outlet of ultrafiltration membrane filter element (102) is connected with the water-in absorbing filter core (103), and the water outlet absorbing filter core (103) is connected with water butt (106) by check valve (112).
3. device according to claim 1, it is characterized in that: described reverse osmosis filter core group comprises reverse osmosis filter core (107), four-sided valve (109), concentrated valve (116), its mode of connection is: water butt (106) is connected to the water-in of reverse osmosis filter core (107) by check valve (114), the outlet of the condensed water of reverse osmosis filter core (107) by the condensed water expanding channels of four-sided valve (109) to concentrated water valve (116); The water purification expanding channels of the pure water inlet of reverse osmosis filter core and four-sided valve (109).
4. device according to claim 1, is characterized in that: the water outlet of check valve (112) is connected with water butt (106), and non-return valve operational direction is allow current by the absorption filter core (103) of described main filter core group to water butt (106) uniflux; The water-in of check valve (114) is connected with water butt (106), and non-return valve operational direction is for allowing current by water butt (106) to reverse osmosis filter core (107) uniflux; Described flush valve (113) two ends are connected with check valve (112) water-in and water outlet respectively, are connected in parallel on check valve (112) two ends.
5. device according to claim 1, is characterized in that: described air pump (105) is connected with water butt (106), can pressurized air be provide high atmospheric pressure in water butt (106), or extracts the air in water butt (106) out, provides negative pressure; Described air pump (105) can be hand air pump, or electric air pump or other power air pumps.
6. device according to claim 1, is characterized in that: described four-sided valve (109) comprises two water stream channels, is respectively water purification passage and condensed water passage; Wherein water purification feeder connection is connected with the pure water inlet of reverse osmosis filter core (107), and water purification channel outlet is connected with water valve (115); Condensed water feeder connection exports with the condensed water of reverse osmosis filter core (107) and is connected, and condensed water channel outlet is connected with concentrated water valve (116).
7. device according to claim 1, is characterized in that: described reverse osmosis filter core (107) uses reverse osmosis membrane as material for core, with principle of reverse osmosis filtered water; Described ultrafiltration membrane filter element (102) uses ultra-filtration membrane as material for core.
8. a water treatment method, is characterized in that: concrete steps are as follows:
(1) water-in of main filter core group is put into water source;
(2) air in water butt (106) extracted out by air pump (105), produces negative pressure;
(3) negative pressure attracts source water to enter main filter core group, after main filter core group is filtered, enters water butt (106) by check valve (112), stores the water filtered by main filter core group in water butt (106);
(4), when needing to supply water, air pump (105) is to water butt (106) inflating pressure;
(5) air pressure in water butt (106) drives the water of storage outwardly, and check valve (112) stops water backflow to main filter core group, and check valve (114) allows water to flow out, and realization is supplied water.
9. a water treatment method, is characterized in that: concrete steps are as follows:
(1) certain water yield is had in water butt (106);
(2) air pump (105) is water butt (106) inflating pressure;
(3) high atmospheric pressure in water butt (106) drives current to flow to reverse osmosis filter core (107) by check valve (114), and the water after osmosis filtration flows out from the pure water inlet of reverse osmosis filter core (107), and remaining condensed water flows out from condensed water outlet;
(4) also comprise as the rate-determining steps optimized: the water after reverse osmosis filter core (107) filters enters the water purification passage of four-sided valve (109), the condensed water of reverse osmosis filter core (107) enters the condensed water passage of four-sided valve (109), and four-sided valve controls the opening and closing association of two passages; Water purification expanding channels feed water valve (115), when feed water valve (115) open, water purification passage have current by time, condensed water passage is opened simultaneously, makes condensed water flow into concentrated water valve (116);
(5) also comprise as the rate-determining steps optimized: concentrated water valve (116) controls condensed water take-off rate, thus realize the outflow ratio of filtering water purification and condensed water.
10. a method for filter cartridge flushing, is characterised in that: comprise following steps:
(1) certain water yield is had in water butt (106);
(2) air pump (105) is to water butt (106) interior inflating pressure;
(3) open flush valve (113), air pressure promotes the main filter core group of current counterflush, is fallen by the wash dirt that cartridge surface is tackled, and improves filter effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406248.2A CN104944621A (en) | 2015-07-10 | 2015-07-10 | Portable grading water treatment device and water treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510406248.2A CN104944621A (en) | 2015-07-10 | 2015-07-10 | Portable grading water treatment device and water treatment method |
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| CN104944621A true CN104944621A (en) | 2015-09-30 |
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| CN201510406248.2A Pending CN104944621A (en) | 2015-07-10 | 2015-07-10 | Portable grading water treatment device and water treatment method |
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| CN108928914A (en) * | 2018-07-25 | 2018-12-04 | 黄传道 | Equipped with respectively in the high temeperature chemistry environmental protection anaerobic system of sampler |
| CN109970148A (en) * | 2018-12-12 | 2019-07-05 | 张耀钦 | Has the water purification system of water-saving function |
| CN116495921A (en) * | 2023-05-04 | 2023-07-28 | 江苏格纳环境工程有限公司 | Reverse RO integrated device |
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| CN103739101A (en) * | 2013-12-17 | 2014-04-23 | 河海大学 | Emergency treatment device of drinking water |
| CN104193025A (en) * | 2014-09-26 | 2014-12-10 | 中国人民解放军济南军区联勤部疾病预防控制中心 | Portable reverse osmosis water filter device |
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| CN1590306A (en) * | 2003-09-03 | 2005-03-09 | 陈志坚 | Pressurized filtering water cleaner of drinker |
| CN201214638Y (en) * | 2008-01-16 | 2009-04-01 | 林于纮 | Hyperfilevation water purifying kettle |
| US20120080364A1 (en) * | 2010-10-04 | 2012-04-05 | Shih-Chang Chen | Water provisioning system for kitchen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108928914A (en) * | 2018-07-25 | 2018-12-04 | 黄传道 | Equipped with respectively in the high temeperature chemistry environmental protection anaerobic system of sampler |
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| CN116495921A (en) * | 2023-05-04 | 2023-07-28 | 江苏格纳环境工程有限公司 | Reverse RO integrated device |
| CN116495921B (en) * | 2023-05-04 | 2024-01-02 | 江苏格纳环境工程有限公司 | Reverse RO integrated device |
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