CN205088020U - Water purification unit and purifier - Google Patents

Water purification unit and purifier Download PDF

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Publication number
CN205088020U
CN205088020U CN201520811230.6U CN201520811230U CN205088020U CN 205088020 U CN205088020 U CN 205088020U CN 201520811230 U CN201520811230 U CN 201520811230U CN 205088020 U CN205088020 U CN 205088020U
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electrode
water
soften resin
water purification
unit
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Chinese (zh)
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王晨
潘濛
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AO Smith Nanjing Water Treatment Products Co Ltd
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AO Smith Nanjing Water Treatment Products Co Ltd
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Abstract

The utility model discloses a water purification unit and purifier, it relates to the water purification field, and it has solved the water purification unit can not carry out palingenetic problem to softening the resin for a long time under the condition of not adding the regenerant. The water purification unit includes: the RO membrane filter unit who has the water inlet, leading filter unit, leading filter unit soften resin filter unit's delivery port and RO membrane filter unit's water inlet intercommunication including softening resin filter unit, the resin regeneration unit, its including can with DC power supply's positive and negative poles electric first electrode and the second electrode of being connected mutually to thereby it regenerates to softening resin filter unit to be used for producing the sour water. The utility model provides a water purification unit need not to add at the in -process of follow -up use and anyly carries out palingenetic regenerant to softening the resin, and the regeneration that can soften the resin at any time operates, does not receive the restraint of other conditions.

Description

Water purification unit and water-purifying machine
Technical field
The utility model relates to water purification field, particularly a kind of water purification unit and water-purifying machine.
Background technology
Along with water pollutions constantly aggravates, drinking-water healthy water more and more difficult, so water purifier as drinking-water people healthy articles for use receive good favor.Water-purifying machine major technique derives from ultra-filtration membrane and RO reverse osmosis membrane two kinds, is the miniature water treatment facility by carrying out deep purifying process to water quality to the service requirements of water.The wherein filtering accuracy of RO reverse osmosis membrane the highest (filtering accuracy is at 0.0001 micron), aperture due to reverse osmosis membrane only have hairline diameter 100,000/, only allow water molecules and dissolved oxygen to pass through, almost all eliminating is trapped to the impurity contained such as objectionable impuritiess such as agricultural chemicals, bacterium, virus, heavy metal all in water.But, because water-purifying machine water inlet exists certain hardness, it contains a certain amount of calcium ions and magnesium ions, in use for some time, deposition can be there is in calcium ions and magnesium ions on RO reverse osmosis membrane, the aperture of blocking RO reverse osmosis membrane, in the near future, the calcium ions and magnesium ions be blocked on RO reverse osmosis membrane just can form thin film and make RO reverse osmosis membrane ineffective.
Chinese patent CN201110092155.9 discloses a kind of softening regeneration pre-treatment waste-water-free reverse osmosis water purifier automatically, it comprises the circulation loop of water pump, reverse-osmosis treated device, throttling valve composition, and energy storage canister, automatically softening-reprocessor and the first electrically-controlled valve.This water-purifying machine is when water processed, and the water entering reverse-osmosis treated device all passes through softening-reprocessor automatically to carry out sofening treatment, thus effectively prevent calcium ions and magnesium ions fouling on RO reverse osmosis membrane; When it is at non-water state processed, user can open the outlet valve on water supply line, and the dense water in circulation loop can carry out manipulation of regeneration to the soften resin lost efficacy, and makes soften resin obtain regeneration, thus recovers the function of soften resin softening of water.But the soften resin used in the invention is a kind of sodium form resin cation (R.C.), when it processes calcium ions and magnesium ions, sodium ion in resin and calcium ions and magnesium ions are replaced, thus the water obtained containing a large amount of sodium ion, when needs regenerate soften resin, by using the water that this part contains a large amount of sodium ion, soften resin is regenerated.Although this invention in follow-up use procedure without the need to adding any regenerator regenerated soften resin again, but it must use special sodium form resin cation (R.C.), and regenerative operation should not be carried out to soften resin when there is no the water of the sodium ion produced containing q.s.
Utility model content
In order to overcome the above-mentioned defect of prior art, the utility model embodiment technical problem to be solved there is provided a kind of water purification unit and water-purifying machine, and it can regenerate soften resin for a long time when not needing manual operation or adding regenerator to water purification unit.
The concrete technical scheme of the utility model embodiment is:
A kind of water purification unit, it comprises:
There is the RO membrane filter unit of water-in;
Prefilter unit, described prefilter unit comprises soften resin filtering unit, and the water outlet of described soften resin filtering unit is communicated with the water-in of described RO membrane filter unit;
Resin regenerating unit, it comprises first electrode and the second electrode that can be electrically connected with the positive and negative polarities of direct supply, for producing sour water thus regenerating described soften resin filtering unit.
Preferably, described first electrode and described second electrode are arranged in described soften resin filtering unit.
Preferably, described soften resin filtering unit comprises housing, is positioned at the soften resin portion of described housing, barrier film is provided with in described soften resin filtering unit, described soften resin filtering unit is divided into the first cavity and the second cavity by described barrier film, described soften resin portion is arranged in described first cavity, described first electrode is arranged in described first cavity, and described second electrode is arranged in described second cavity.
Preferably, described first electrode and described second electrode can be energized to form electrolyzer in described soften resin filtering unit, thus generation sour water regenerates described soften resin filtering unit.
Preferably, described first electrode can be electrically connected with the positive pole of direct supply, and described first electrode is made up of inert metal, and described second electrode can be electrically connected with the negative pole of direct supply, and described second electrode is made up of active metal.
Preferably, described first electrode is made up of titanium metal, and described second electrode is made up of ferrous metal.
Preferably, described second electrode is netted or tabular.
Preferably, described first electrode is roundabout arrangement or tabular.
Preferably, described RO membrane filter unit comprises membrane element, described membrane element has the diaphragm of influent side and pure water side, the influent side of described diaphragm is communicated with the water-in of described RO membrane filter unit, described first electrode is arranged at the influent side of the outermost diaphragm of described membrane element and can be electrically connected mutually with positive source, described second electrode is arranged at the pure water side of the outermost diaphragm of described membrane element and can be electrically connected mutually with power cathode, the influent side of the outermost diaphragm of described membrane element can be communicated with described soften resin filtering unit, thus when described first electrode and positive source are electrically connected mutually and described second electrode and power cathode are electrically connected mutually, the influent side of the outermost diaphragm of described membrane element generates sour water to regenerate described soften resin filtering unit.
Preferably, described RO membrane filter unit comprises: putamina; Separator, described separator has ion transmission, and described putamina is isolated the first chamber and the second chamber by described separator; Membrane element, it is placed in described first chamber; Described first electrode is arranged in described first chamber; Described second electrode is arranged in described second chamber; Described first chamber can be communicated with described soften resin filtering unit with one of them in described second chamber.
Preferably, described first electrode can be communicated with the positive pole of direct supply, and described second electrode can be communicated with the negative pole of direct supply, and described first chamber can be communicated with described soften resin filtering unit.
Preferably, described second electrode can be communicated with the positive pole of direct supply, and described first electrode can be communicated with the negative pole of direct supply, and described second chamber can be communicated with described soften resin filtering unit.
Preferably, separator comprises the strut member that offers communicating pores and has a barrier film of ion transmission for communicating pores described in shutoff.
Preferably, described barrier film comprises one or more in ultra-filtration membrane, nanofiltration membrane, reverse osmosis membrane, ion-exchange membrane or Bipolar Membrane.
A kind of water-purifying machine, it comprises above-mentioned arbitrary described water purification unit.
The technical solution of the utility model has following remarkable beneficial effect: be provided with prefilter unit in the water purification unit of the embodiment of the present application, by the soften resin filtering unit in prefilter unit, sofening treatment is carried out to water inlet, simultaneously in order to prevent the soften resin in soften resin filtering unit to lose efficacy, this water purification unit also comprises a resin regenerating unit, it comprises first electrode and the second electrode that can be electrically connected with the positive and negative polarities of direct supply, it can produce the soften resin of sour water to disabling portion and regenerate, so, when using common soften resin, this water purification unit in the process of follow-up use without the need to adding any regenerator regenerated soften resin, and the regenerative operation of soften resin can be carried out at any time, not by the constraint of other conditions.
Accompanying drawing explanation
Accompanying drawing described here only for task of explanation, and is not intended to limit the utility model scope of disclosure by any way.In addition, the shape of each parts in figure and proportional sizes etc. are only schematic, for helping understanding of the present utility model, are not the shape and the proportional sizes that specifically limit each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shape and proportional sizes to implement the utility model as the case may be.
Fig. 1 is the structural representation of water purification unit in the utility model embodiment.
Fig. 2 is the structural representation of a kind of embodiment of RO membrane filter unit in the utility model embodiment.
Fig. 3 is the structural representation of the another kind of embodiment of RO membrane filter unit in the utility model embodiment.
The Reference numeral of above accompanying drawing:
0, prefilter unit; 1, RO membrane filter unit; 11, putamina; 12, separator; 13, membrane element; 14, the first chamber; 15, the second chamber; 2, resin regenerating unit; 21, the first electrode; 22, the second electrode; 3, soften resin filtering unit; 31, soften resin portion; 32, the first cavity; 33, the second cavity; 34, barrier film; 4, composite filter element filtering unit; 5, the cotton filtering unit of PP;
Embodiment
By reference to the accompanying drawings with the description of the utility model embodiment, can clearly understand details of the present utility model.But embodiment of the present utility model described here, only for explaining the purpose of this utility model, and can not to be understood as by any way be to restriction of the present utility model.Under instruction of the present utility model, technician can conceive based on distortion possible arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Fig. 1 is the structural representation of water purification unit in the utility model embodiment, as shown in Figure 1, a kind of water purification unit, it comprises: the RO membrane filter unit 1 with water-in; Prefilter unit 0, prefilter unit 0 comprises soften resin filtering unit 3, and the water outlet of soften resin filtering unit 3 is communicated with the water-in of RO membrane filter unit 1; Resin regenerating unit 2, it comprises first electrode 21 and second electrode 22 that can be electrically connected with the positive and negative polarities of direct supply, for producing sour water thus regenerating soften resin filtering unit 3.
RO membrane filter unit 1 comprises water-in, wastewater effluent mouth and water purification water outlet, water flows into RO membrane filter unit 1 from water-in, in RO membrane filter unit 1, water carries out filtering the water after obtaining filtration through RO film, water self-purification water outlet after filtration flows out, and fail in water to become waste water through the part of RO film owing to wherein containing a large amount of pollutent, this effluent part is discharged from the wastewater effluent mouth of RO membrane filter unit 1.
Prefilter unit 0 comprises soften resin filtering unit 3, and soften resin filtering unit 3 can be a housing with water outlet and water-in, in this housing, be provided with soften resin.The water outlet of soften resin filtering unit 3 is communicated with the water-in of RO membrane filter unit 1, water flows in the housing of soften resin filtering unit 3 from the water-in of soften resin filtering unit 3, the soften resin of enclosure interior carries out sofening treatment to water, the calcium ions and magnesium ions contained in absorption water inlet, make to reduce into water hardness to be transformed into soft water, water inlet is discharged from the water outlet of resin filter unit again, leads to RO membrane filter unit 1.Because water inlet carries out sofening treatment in soften resin filtering unit 3, by absorption such as calcium ions and magnesium ions wherein, the water inlet entering RO membrane filter unit 1 is soft water state, and it can not block the pore of RO film in RO membrane filter unit 1, more can not form thin film and make RO film ineffective.
Resin regenerating unit 2 comprises first electrode 21 and the second electrode 22, first electrode 21 that can be electrically connected with the positive and negative polarities of direct supply and the second electrode 22 can be arranged in soften resin filtering unit 3.Soften resin filtering unit 3 comprises housing, is positioned at the soften resin portion 31 of housing, barrier film 34 is provided with in soften resin filtering unit 3, soften resin filtering unit 3 is divided into the first cavity 32 and the second cavity 33 by barrier film 34, soften resin portion 31 is arranged in the first cavity 32, first electrode 21 is arranged in the first cavity 32, and the second electrode 22 is arranged in the second cavity 33.This barrier film 34 has certain ion transmission, and it can comprise ultra-filtration membrane, nanofiltration membrane, reverse osmosis membrane, ion-exchange membrane and Bipolar Membrane etc.Owing to there is this barrier film 34, first electrode 21 and the second electrode 22 stretch into the enclosure interior of soften resin filtering unit 3, when passing in housing into water, first electrode 21 and the second electrode 22 can be energized to form electrolyzer in soften resin filtering unit 3, thus generation sour water regenerates soften resin filtering unit 3.
First electrode 21 can be electrically connected with the positive pole of direct supply, and the first electrode 21 is made up of inert metal, and the second electrode 22 can be electrically connected with the negative pole of direct supply, and the second electrode 22 is made up of active metal.As preferably, the first electrode 21 can be made up of titanium metal, and the second electrode 22 can be made up of ferrous metal, certain, and other inert metal also can make the first electrode 21, also can not make the second electrode 22 with other active metal of water generation vigorous reaction.
Soften resin filtering unit 3 can comprise housing, be positioned at soften resin portion 31, second electrode 22 of housing is arranged on outside soften resin portion 31, and the second electrode 22 offers the through hole be communicated with housing, and the first electrode 21 is arranged in soften resin portion 31.Second electrode 22 forms reticulated structure and is wrapped in wherein by soften resin, and it is inner that the first electrode 21 can be arranged on soften resin portion 31, and the first electrode 21 is in roundabout arrangement or tabular.Second electrode 22 also can be tabular, and described soften resin is folded in wherein by the second electrode 22 of multiple tabular.So, the sour water produced when the first electrode 21 is energized with the second electrode 22 can contact with soften resin portion 31 preferably, and then sour water is regenerated soften resin portion 31.Soften resin portion 31 can be made up of soften resin.When water flows in soften resin filtering unit 3, water is undertaken contacting to make 31 pairs, soften resin portion water carry out sofening treatment fully by the soften resin portion 31 that through hole that the second electrode 22 is offered is coated with the second electrode 22.In one embodiment, soften resin filtering unit 3 comprises housing, is positioned at the soften resin portion 31 of housing.The middle part in soften resin portion 31 forms a cavity.Barrier film 34 is provided with between soften resin portion 31 and cavity, first electrode 21 is arranged in soften resin portion 31, second electrode 22 is arranged in the cavity of soften resin portion 31 formation, and the cavity in soften resin portion 31 is communicated with water outlet with the water inlet of soften resin filtering unit 3 respectively.Second electrode 22 is in netted, and it is isolated with cavity by soften resin portion 31.First electrode 21 can be roundabout arrangement or tabular, when the first electrode 21 is in roundabout arrangement, it is inner that it roundaboutly can be arranged in soften resin portion 31, when the first electrode 21 is in tabular, it can plug into soften resin inside, so, increase first electrode 21 is conducive in the contact area of soften resin.When the first electrode 21 is electrically connected with the positive pole of direct supply, when second electrode 22 is electrically connected with the negative pole of direct supply, the area contacted with soften resin portion 31 due to the first electrode 21 is larger, the sour water that first electrode 21 surrounding produces can fully contact with soften resin portion 31, and then makes soften resin portion 31 regenerate preferably.Soften resin portion 31 is made up of soften resin.Water flows into from the water inlet of soften resin filtering unit 3, flow through in the cavity in soften resin portion 31, now, soften resin portion 31 contacts with water, 31 pairs, soften resin portion water carries out sofening treatment, and the water through sofening treatment flows out from the water outlet of soften resin filtering unit 3.
In the water purification unit of the utility model embodiment, water is by soften resin filter core, soften resin filter core carries out sofening treatment to remove the calcium ions and magnesium ions in water to water, and the water flowed out from soften resin filter core enters RO membrane filter unit 1 to carry out filtration treatment.After the use of soften resin filter core acquires a certain degree, the soften resin in soften resin filter core can slowly lose efficacy, and now needs to carry out regenerative operation to the soften resin of disabling portion.Non-regenerative operating procedure is as follows: be electrically connected with the positive pole of direct supply by the first electrode 21 in resin regenerating unit 2, the second electrode 22 in resin regenerating unit 2 is electrically connected with the negative pole of direct supply, first electrode 21 and the second electrode 22 produce sour water by electrolysis tech, and sour water can regenerate the soften resin lost efficacy in soften resin filter core.Soften resin and then continuation carry out sofening treatment to water, to remove the calcium ions and magnesium ions in water.
Prefilter unit 0 is provided with in water purification unit in the present embodiment, by the soften resin filtering unit 3 in prefilter unit 0, sofening treatment is carried out to water inlet, simultaneously in order to prevent the soften resin in soften resin filtering unit 3 to lose efficacy, this water purification unit also comprises a resin regenerating unit 2, it comprises first electrode 21 and second electrode 22 that can be electrically connected with the positive and negative polarities of direct supply, it can produce the soften resin of sour water to disabling portion and regenerate, so, when using common soften resin, this water purification unit in the process of follow-up use without the need to adding any regenerator regenerated soften resin, and the regenerative operation of soften resin can be carried out at any time, not by the constraint of other conditions.By further experiment, experimentally data, the sour water that after being energized by the first electrode 21 and the second electrode 22, electrolysis produces regenerates soften resin, and soften resin at least can recover the ability of 50% absorbing calcium ions and magnesium ions.
In one embodiment, described RO membrane filter unit 1 comprises membrane element 13, membrane element 13 has the diaphragm of influent side and pure water side, the influent side of diaphragm is communicated with the water-in of RO membrane filter unit 1, first electrode 21 is arranged at the influent side of the outermost diaphragm of membrane element 13 and can be electrically connected mutually with positive source, second electrode 22 is arranged at the pure water side of the outermost diaphragm of membrane element 13 and can be electrically connected mutually with power cathode, the influent side of the outermost diaphragm of membrane element 13 can be communicated with soften resin filtering unit 3, thus when the first electrode 21 and positive source are electrically connected mutually and the second electrode 22 is electrically connected mutually with power cathode, the influent side of the outermost diaphragm of membrane element 13 generates sour water to regenerate soften resin filtering unit 3.In the present embodiment, the tube-like element of membrane element 13 for rolling, diaphragm is reverse osmosis membrane or nanofiltration membrane.Water inlet current infiltrate membrane element 13 inside or penetrate into membrane element 13 along the gap of membrane element 13 afterbody inner along the gap at membrane element 13 both ends, and waste water fluid stream oozes out along the lateral circumferential surface of membrane element 13.Membrane element 13, after long-time running, can produce a large amount of incrustation scale on membrane element, and these incrustation scales easily break the separating layer of ring membrane surface, thus produce certain risk to the separation performance of diaphragm.This wound membrane element can carry out the process of falling pole, exchange by positive pole and negative pole, make outside membrane element, to form the opposite polarity aqueous solution, whole membrane element is soaked, thus without the need to carrying out manual cleaning, organism and the inorganics fouling of membrane surface can be removed.By this method, this membrane element both can produce acid aqueous cleaning solution, for removing inorganic incrustation scale, also can producing alkaline aqueous solution, for removing organic incrustation scale, can also the process of falling pole be passed through, the aqueous solution that polarization is contrary, removes inorganic and organic incrustation scale.When the first electrode 21 and positive source are electrically connected mutually and the second electrode 22 is electrically connected mutually with power cathode, the influent side of the outermost diaphragm of membrane element 13 generates sour water, now, not only the above-mentioned cleaning to membrane element can be completed, the influent side of outermost for membrane element 13 diaphragm can be generated sour water pass into soften resin filtering unit 3 thus regenerate the soften resin portion in resin filter unit 3 simultaneously, reach the object of killing two birds with one stone.
In one embodiment, Fig. 2 is the structural representation of a kind of embodiment of RO membrane filter unit in the utility model embodiment, and as shown in Figure 2, RO membrane filter unit 1 comprises: putamina 11; Separator 12, separator 12 has ion transmission, and putamina 11 is isolated the first chamber 14 and the second chamber 15 by separator 12; Membrane element 13, it is placed in the first chamber 14; First electrode 21 is arranged in the first chamber 14; Second electrode 22 is arranged in the second chamber 15; First chamber 14 can be communicated with soften resin filtering unit 3 with one of them in the second chamber 15.Separator 12 comprises the strut member that offers communicating pores and has a barrier film 34 of ion transmission for shutoff communicating pores.Barrier film 34 comprises one or more in ultra-filtration membrane, nanofiltration membrane, reverse osmosis membrane, ion-exchange membrane or Bipolar Membrane.Membrane element 13 is positioned at the first chamber 14, can filter the water source entered in the first chamber 14.Membrane element 13 has water inlet, pure water outlet and wastewater outlet.The water inlet of membrane element 13 is communicated with the first chamber 14.The pure water outlet 61 of membrane element 13 and wastewater outlet can be derived from putamina 1, thus flow to different pipelines respectively.The water inlet of membrane element 13 is positioned at the side of described membrane element 13, and the wastewater outlet of described membrane element 13 is positioned at membrane element 13 end face, and the pure water outlet of membrane element 13 is communicated with a header.The wastewater outlet of described membrane element 13 is near the header of described membrane element 13.In one embodiment, the first electrode 21 can be communicated with the positive pole of direct supply, and the second electrode 22 can be communicated with the negative pole of direct supply, and the first chamber 14 can be communicated with soften resin filtering unit 3.First electrode 21 can be made up of inert metal, and the second electrode can be made up of active metal.When the first electrode 21 is communicated with the positive pole of direct supply, when second electrode 22 is communicated with the negative pole of direct supply, first electrode 21 and the second electrode 22 form electrolyzer in the first chamber 14 and the second chamber 15, generate sour water in the first chamber 14, generate alkaline water in the second chamber 15.Adopt sour water and/or alkaline water can clean membrane element 13 on the one hand, sour water can remove the inorganic salt crust thing in membrane element 13, and alkaline water can remove the organic salt crust thing in membrane element 13.In addition on the one hand, pass in soften resin filtering unit 3 by the sour water generated in the first chamber 14, the acidity generated in the first chamber 14 regenerates the soften resin in soften resin filtering unit 3, so, can reach the object of killing two birds with one stone.In other embodiments, Fig. 3 is the structural representation of the another kind of embodiment of RO membrane filter unit in the utility model embodiment, as shown in Figure 3, second electrode 22 can be communicated with the positive pole of direct supply, first electrode 21 can be communicated with the negative pole of direct supply, and the second chamber 15 can be communicated with soften resin filtering unit 3.Second electrode 22 can be made up of inert metal, and the first electrode can be made up of active metal.When the second electrode 22 is communicated with the positive pole of direct supply, when first electrode 21 is communicated with the negative pole of direct supply, first electrode 21 and the second electrode 22 form electrolyzer in the first chamber 14 and the second chamber 15, generate sour water in the second chamber 15, generate alkaline water in the first chamber 14.Adopt sour water and/or alkaline water can clean membrane element 13 on the one hand, sour water can remove the inorganic salt crust thing in membrane element 13, and alkaline water can remove the organic salt crust thing in membrane element 13.On the one hand in addition, pass in soften resin filtering unit 3 by the sour water generated in the second chamber 14, the acidity generated in the second chamber 14 regenerates the soften resin in soften resin filtering unit 3, so, also can reach the object of killing two birds with one stone simultaneously.
Prefilter unit 0 also comprises the cotton filtering unit 5 of PP and composite filter element filtering unit 4.Before soften resin filtering unit 3, the cotton filtering unit 5 of PP and composite filter element filtering unit 4 can be disposed with.Be provided with PP cotton in the cotton filtering unit 5 of PP, in composite filter element filtering unit 4, be provided with composite filter element.First water flows through the cotton filtering unit 5 of the cotton filtering unit 5, PP of PP and can filter pollutent larger in water.Secondly, the water that the cotton filtering unit 5 of PP flows out flows into composite filter element filtering unit 4, and in composite filter element filtering unit 4 pairs of waters, less pollutent filters.So, the pollutent of the overwhelming majority can be carried out filtration and remove, only in water, remain the minimum pollutent of a small amount of particle diameter, reduced the burden of RO membrane filter unit 1, avoid the pollutent of Large stone to pile up in RO membrane filter unit 1.Finally, the water that composite filter element filtering unit 4 flows out flows into soften resin filter core, by soften resin filter core by the impurity in water as the objectionable impuritiess such as agricultural chemicals, bacterium, virus, heavy metal are filtered.
A kind of water-purifying machine, it comprises any one water purification unit above-mentioned.
Each embodiment in this specification sheets all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.

Claims (15)

1. a water purification unit, is characterized in that, it comprises:
There is the RO membrane filter unit of water-in;
Prefilter unit, described prefilter unit comprises soften resin filtering unit, and the water outlet of described soften resin filtering unit is communicated with the water-in of described RO membrane filter unit;
Resin regenerating unit, it comprises first electrode and the second electrode that can be electrically connected with the positive and negative polarities of direct supply, for producing sour water thus regenerating described soften resin filtering unit.
2. water purification unit according to claim 1, is characterized in that, described first electrode and described second electrode are arranged in described soften resin filtering unit.
3. water purification unit according to claim 2, it is characterized in that, described soften resin filtering unit comprises housing, is positioned at the soften resin portion of described housing, barrier film is provided with in described soften resin filtering unit, described soften resin filtering unit is divided into the first cavity and the second cavity by described barrier film, described soften resin portion is arranged in described first cavity, and described first electrode is arranged in described first cavity, and described second electrode is arranged in described second cavity.
4. water purification unit according to claim 3, is characterized in that, described first electrode and described second electrode can be energized to form electrolyzer in described soften resin filtering unit, thus generation sour water regenerates described soften resin filtering unit.
5. water purification unit according to claim 3, it is characterized in that, described first electrode can be electrically connected with the positive pole of direct supply, and described first electrode is made up of inert metal, described second electrode can be electrically connected with the negative pole of direct supply, and described second electrode is made up of active metal.
6. water purification unit according to claim 5, is characterized in that, described first electrode is made up of titanium metal, and described second electrode is made up of ferrous metal.
7. water purification unit according to claim 4, is characterized in that, described second electrode is netted or tabular.
8. water purification unit according to claim 4, is characterized in that, described first electrode is roundabout arrangement or tabular.
9. water purification unit according to claim 1, it is characterized in that, described RO membrane filter unit comprises membrane element, described membrane element has the diaphragm of influent side and pure water side, the influent side of described diaphragm is communicated with the water-in of described RO membrane filter unit, described first electrode is arranged at the influent side of the outermost diaphragm of described membrane element and can be electrically connected mutually with positive source, described second electrode is arranged at the pure water side of the outermost diaphragm of described membrane element and can be electrically connected mutually with power cathode, the influent side of the outermost diaphragm of described membrane element can be communicated with described soften resin filtering unit, thus when described first electrode and positive source are electrically connected mutually and described second electrode and power cathode are electrically connected mutually, the influent side of the outermost diaphragm of described membrane element generates sour water to regenerate described soften resin filtering unit.
10. water purification unit according to claim 1, is characterized in that, described RO membrane filter unit comprises:
Putamina;
Separator, described separator has ion transmission, and described putamina is isolated the first chamber and the second chamber by described separator;
Membrane element, it is placed in described first chamber;
Described first electrode is arranged in described first chamber;
Described second electrode is arranged in described second chamber;
Described first chamber can be communicated with described soften resin filtering unit with one of them in described second chamber.
11. water purification unit according to claim 10, it is characterized in that, described first electrode can be communicated with the positive pole of direct supply, described second electrode can be communicated with the negative pole of direct supply, and described first chamber can be communicated with described soften resin filtering unit.
12. water purification unit according to claim 10, it is characterized in that, described second electrode can be communicated with the positive pole of direct supply, described first electrode can be communicated with the negative pole of direct supply, and described second chamber can be communicated with described soften resin filtering unit.
13. water purification unit according to claim 10, is characterized in that, separator comprises the strut member that offers communicating pores and has a barrier film of ion transmission for communicating pores described in shutoff.
14. water purification unit according to claim 13, it is characterized in that, described barrier film comprises one or more in ultra-filtration membrane, nanofiltration membrane, reverse osmosis membrane, ion-exchange membrane or Bipolar Membrane.
15. 1 kinds of water-purifying machines, is characterized in that, it comprises the arbitrary described water purification unit of claim 1 to 14.
CN201520811230.6U 2015-10-19 2015-10-19 Water purification unit and purifier Active CN205088020U (en)

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CN201520811230.6U CN205088020U (en) 2015-10-19 2015-10-19 Water purification unit and purifier

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Application Number Priority Date Filing Date Title
CN201520811230.6U CN205088020U (en) 2015-10-19 2015-10-19 Water purification unit and purifier

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Publication Number Publication Date
CN205088020U true CN205088020U (en) 2016-03-16

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