CN104785109A - Membrane unit provided with scrubbing mechanism and water purifier using membrane unit - Google Patents
Membrane unit provided with scrubbing mechanism and water purifier using membrane unit Download PDFInfo
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- CN104785109A CN104785109A CN201510203854.4A CN201510203854A CN104785109A CN 104785109 A CN104785109 A CN 104785109A CN 201510203854 A CN201510203854 A CN 201510203854A CN 104785109 A CN104785109 A CN 104785109A
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Abstract
The invention discloses a membrane unit provided with a scrubbing mechanism and a water purifier using the membrane unit, and belongs to the technical field of drinking water purification equipment. The membrane unit is provided with a scrubbing part; the scrubbing part is driven by a water solution or external power to do a reciprocating motion for performing frictional cleaning on the surface of a separation layer of a membrane element; the flowing water solution is used for performing hydraulic cleaning on the scrubbing part and the membrane element; the water purifier using the membrane unit is short in water treatment process; a system is simple; the service life of the membrane element is long; the concentrated water solution in a preparation process of purified water does not serve as wastewater to be discharged.
Description
Technical field
The present invention relates to a kind of film group device with scrubbing mechanism and use the water purifier of this film group device, particularly domestic drinking water process, belongs to water treatment by membrane equipment technical field.
Background technology
Water treatment by membrane is in field extensive uses such as deep purification for tap water, desalinization, industrial pure water preparation, sewage disposal and reuse, industry concentrate.
In water treatment by membrane field, fouling membrane and Membrane cleaning industry Key Common Technologies problem, Water Sproading rate height and membrane component long service life are the targets that industry is asked jointly most.
At present, household reverse osmosis water purifier continues to use Industrial reverse osmosis water technology, mainly adopts coiled reverse osmosis membrane element, 5 grades of process for purifying, cross-flow filtration patterns, prepares pure water.Although reverse osmosis water purifier is by taking 3 grades of pretreatment and the multiple technologies measure such as 1 and post processing, dense water circulation use, dense Water Sproading utilization, but the running water rate of recovery is generally only about 30%, less than the half of the rate of recovery of Treatment of Industrial Water, membrane lifetime is 1-2 (being only about 5% of the Treatment of Industrial Water film effective time), huge with the technological gap of Industrial reverse osmosis water treatment.
Cause the basic reason of the technological gap of household reverse osmosis water purifier and Industrial reverse osmosis water treatment to be that the degree of perfection gap of water treatment system is huge, be mainly manifested in pretreatment water control system, film rinse-system, Chemical cleaning different with the degree of perfection of Using Multistage Membranes filtration system with implement to be difficult to degree different.
Preventing in fouling membrane, owing to lacking Using Multistage Membranes filtration system, existing household reverse osmosis water purifier prevents fouling membrane by the flow velocity improving running water, should rely on flow velocity preventing pollution, reduces waste water again and produces, inherently conflict body.Fouling membrane is prevented to be subject to technical bottleneck restriction by the flow velocity improving running water.
In addition, household reverse osmosis water purifier is preventing in fouling membrane, also there is following problem:
One is pretreated validity problem, and owing to lacking the water storage device of similar industrial water treatment, adopt dynamic pretreating process, the charcoal treatment time is short, and pretreating effect is limited, is difficult to reach industrial pretreated water standard.
Two is the problems dechlorinated, and prior art removes the free chlorine in water in pretreatment link, to prevent film to be oxidized, brings new problem to the biological pollution of membrane component.
In Membrane cleaning, owing to lacking perfect Membrane cleaning system, existing household water-purifying machine part uses the backwash measure of Treatment of Industrial Water, adds the complexity of water purifier.If increase Chemical cleaning further again, apparatus structure will be more complicated.
Summary of the invention
The object of the invention is, mainly for the above-mentioned technological gap that counter-infiltration household water-purifying machine and Treatment of Industrial Water membrane component service life, Water Sproading rate exist, one is provided to prevent fouling membrane, can remove and the film group device of chemical scavenging fouling membrane by machinery again, make that the Water Sproading rate of water purifier is high, membrane lifetime is long, system is simple, to overcome the deficiencies in the prior art.
The batch (-type) water treatment that the very applicable dead-end filtration of film group device of the present invention and water purifier and cross-flow filtration hocket, as the preparation of household reverse osmosis pure water, also may be used for the production fields such as food and drink processing, industrial concentrating and separating.
In order to achieve the above object, technical scheme of the present invention is as follows:
A kind of film group device with scrubbing mechanism, it comprises housing, one and above membrane component and connector, the non-filtered part of membrane component and connector are encapsulated as an entirety, connector is connected with housing, the filtration fraction of membrane component is arranged in housing, housing is provided with water inlet, delivery port and cleaning agent hand-hole, and membrane component is provided with pure water outlet, under the dynamic action of the aqueous solution, prepare pure water; In housing 1, be provided with scouring parts, under the aqueous solution or powered attendant-controlled wheelchairs driving, clean parts reciprocating, friction cleaning is carried out to the separating layer surface of membrane component.
The film group device of above-mentioned band scrubbing mechanism is, clean parts and comprise piston, fin and wiping brush, fin is connected with piston, and wiping brush is connected with fin, the separating layer surface contact of wiping brush and membrane component.
The film group device of aforesaid band scrubbing mechanism is connected with piston rod on piston, and the end of piston rod coordinates with body clearance, spring housing connects on the piston rod.
The film group device of aforesaid band scrubbing mechanism is, the inwall of housing has the boss extended in parallel along scouring component movement direction, piston offers flow channel for liquids, boss and flow channel for liquids form the hydraulic selector cooperatively interacted, when described hydraulic selector is opened, the aqueous solution flows to delivery port one end near water inlet one end through flow channel for liquids.
The film group device of aforesaid band scrubbing mechanism is, the inwall tool of housing is provided with lug boss.
The film group device of aforesaid band scrubbing mechanism is that fin contains active carbon, and the mass fraction ratio that active carbon accounts for fin is 0% to 100%.
The film group device of aforesaid band scrubbing mechanism is, described activated carbon supported bactericide.
A kind of water purifier using the film group device of band scrubbing mechanism, this water purifier comprises pretreatment unit, water pump, with the film group device of scrubbing mechanism, valve, electric-control system and purified water collecting unit, pretreatment unit is communicated with running water water inlet, pretreatment unit, water pump, film group device and valve are sequentially connected in series, purified water collecting unit is connected with the film group device of band scrubbing mechanism, running water is after pretreatment unit preliminary purification, deep purifying is carried out by the film group device of band scrubbing mechanism, pure water after deep purifying is incorporated into purified water collecting unit, through concentrating or drawing without the delivery port of concentrated running water from the film group device of band scrubbing mechanism, the upstream of the film group device of this band scrubbing mechanism is provided with check valve, and check valve and water pump are connected in parallel, the downstream of the film group device with scrubbing mechanism is provided with conductance probe, the TDS Signal transmissions through concentrated running water that the film group device delivery port of conductance probe acquires band scrubbing mechanism is drawn to electric-control system, for the duty of by-pass valve control.
Aforesaid a kind of water purifier of the film group device of band scrubbing mechanism that uses is, conductance probe is provided with pressure sensor between running water water inlet, the feedwater of film group device of the band scrubbing mechanism that pressure sensor gathers or discharge pressure Signal transmissions to electric-control system, for the duty of by-pass valve control.
Aforesaid a kind of water purifier of the film group device of band scrubbing mechanism that uses is that film group device to the pipeline between valve of band scrubbing mechanism is provided with domestic water and exports bypass, exports in bypass be provided with domestic water valve at domestic water.
Aforesaid a kind of water purifier using the film group device of band scrubbing mechanism is that the downstream of valve is provided with flow sensor, measures the wastewater discharge by valve, in order to the duty of by-pass valve control.
Aforesaid a kind of water purifier using the film group device of band scrubbing mechanism is that pretreatment unit filtering accuracy is micro-filtration.
beneficial effect of the present invention is as follows:
The film group device that the present invention relates to and water purifier, mainly for the technological gap that household reverse osmosis water purifier and Industrial reverse osmosis water treatment exist, one is provided to prevent fouling membrane, again can the film group device of mechanical removal and chemical scavenging fouling membrane, make that water purifier Water Sproading rate is high, system is simple, concrete beneficial effect is as follows:
(1) membrane component reaches more than 5 years service life, higher than 3 to 4 years service life of existing family expenses wound membrane element.On the one hand, film group device of the present invention is provided with reciprocating scouring parts, pretreatment is that micro-filtration filters, the main larger-size suspension removed in the aqueous solution, and the solid pollutant being deposited on film surface is removed by cleaning, simultaneously, be provided with check valve, form large discharge water inlet, friction cleaning and hydrodynamic cleaning are carried out simultaneously, more be conducive to the removal of pollutant, slow down the decay of membrane component water flux; Secondly, by adopting the active carbon of load bactericide on the scouring parts of film group device, by process procedure process around film surface such as free chlorine removal and sterilizings, be more conducive to diaphragm element and the biological pollution preventing film; 3rd, film group device adopts open runner, film group device is provided with cleaning agent hand-hole, moving back and forth in conjunction with scrubbing mechanism, makes Chemical cleaning convenient, easy.
(2) the running water rate of recovery is high, and discharge is through concentrated running water hardly.On the one hand, film group device of the present invention mainly adopts dead-end filtration, prepares pure water, under the condition preparing equal number pure water, significantly decrease the demand of running water by the cocnentration factor (in most cases, can reach the cocnentration factor of 5 times) improving running water; Secondly, the concentrated aqueous solution produced in pure water preparation process is temporarily stored in the housing of film group device, film group device serves water reservation, again by arranging valve and electric-control system, directly be communicated with domestic water tap, when domestic water is fetched water, the concentrated running water stored in film group device directly utilizes, do not make discharge of wastewater, save a large amount of water resources.As pressed China's existing household reverse osmosis water purifier recoverable amount 1,000 ten thousand calculating, every platform water purifier average year aquifer yield is 1.5 tons, producing 1 ton of pure-water discharging, 3 tons of condensed water, as adopted film group device of the present invention and water purifier, the aqueous solution 4,500 ten thousand tons can be saved every year.
(3) water purifier structure is simplified.On the one hand, simplify pretreatment system, the pretreatment of water purifier is reduced to micro-filtration, compared with existing " PP cotton+granular activated carbon+extruded activated carbon " three-level system, decrease secondary; Secondly, owing to adopting film group device of the present invention, simplify the recovery of concentrated running water or circulatory system element and pipeline.
Accompanying drawing explanation
Fig. 1 is a kind of film group device structural representation with scrubbing mechanism of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1 of the present invention;
Fig. 3 is the film group device structural representation of another kind band scrubbing mechanism of the present invention;
Fig. 4 is the B-B schematic cross-section of Fig. 3;
Fig. 5 is the C-C schematic cross-section of Fig. 3;
Fig. 6 is a kind of water purifier structure schematic diagram using the film group device of band scrubbing mechanism of the present invention;
Fig. 7 is a kind of water purifier valve 54 control flow chart using the film group device of band scrubbing mechanism of the present invention.
Wherein, in figure, each label is represented as: 1-housing; 2-membrane component; 3-connector; 4-cleans parts; 5-water inlet; 6-delivery port; 7-cleaning agent hand-hole; 8-boss; 9-lug boss; 21-pure water exports; 41-piston; 42-piston rod; 43-spring; 44-fin; 45-wiping brush; 411-flow channel for liquids; 51-pretreatment unit; 52-water pump; 53-is with the film group device of scrubbing mechanism; 54-valve; 55-electric-control system; 56-purified water collecting unit; 57-check valve; 58-pressure sensor; 59-flow sensor; 60-conductance is popped one's head in; 61-domestic water valve.
Detailed description of the invention
In the following detailed description, focus on the application of film group device in counter-infiltration household water-purifying machine of dead-end filtration, details provided in this article, advantage and other explanations also will be applicable to water treatment facilities or other fluid filtering devices of a kind of film group device do not related in this explanation.
Below in conjunction with drawings and Examples, the present invention is described in more detail.
As shown in Figures 1 to 5, the film group device of the band scrubbing mechanism that the present invention relates to comprises housing 1, membrane component 2, connector 3 and cleans parts 4, the filtration fraction of membrane component 2 is arranged on the inner chamber of housing 1, non-filtered part is connected with connector 3, connector 3 is connected with housing 1, cleans the wiping brush 45 of parts 4 and the separating layer surface contact of membrane component 2, under the aqueous solution or powered attendant-controlled wheelchairs driving, clean parts 4 reciprocating, friction cleaning is carried out to the separating layer surface of membrane component 2; Housing 1 is provided with water inlet 5, delivery port 6 and cleaning agent hand-hole 7, and membrane component 2 is provided with pure water outlet 21, under the dynamic action of the aqueous solution, prepare pure water, and the pure water of preparation is drawn from pure water outlet 21.
As shown in Figure 6, the water purifier that the present invention relates to comprises pretreatment unit 51, water pump 52, the film group device 53 being with scrubbing mechanism, valve 54, electric-control system 55, purified water collecting unit 56, check valve 57, pressure sensor 58, flow sensor 59, conductance probe 60 and domestic water valve 61.Running water is through pretreatment unit 51 preliminary purification, then by being with film group device 53 deep purifying of scrubbing mechanism, the pure water obtained is stored in the storage container of purified water collecting unit 56 or directly draws; Running water TDS concentration through concentrating in film group device 53 with scrubbing mechanism is when meeting the conditions such as discharge of wastewater setting value, and electric-control system 55 by-pass valve control 54 is opened, and the high concentration running water stored in film group device 53 is made discharge of wastewater; When domestic water is fetched water, the warp stored in film group device 53 with scrubbing mechanism is concentrated or use as domestic water without concentrated running water, when domestic water is fetched water, the scouring parts 4 pairs of membrane components 21 in the film group device 53 of band scrubbing mechanism are back and forth cleaned and hydrodynamic cleaning.
Pure water of the present invention refers to, total dissolved solid (TDS) concentration is less than the aqueous solution of 500ppm.
Domestic water of the present invention refers to, through concentrating or be less than or equal to without concentrated total dissolved solid (TDS) concentration the aqueous solution of 1000ppm.
Waste water of the present invention refers to, is greater than the aqueous solution of 1000ppm through concentrated total dissolved solid (TDS) concentration.
reciprocating friction cleans
Friction cleaning (being called for short " scouring " herein) of the present invention refers to, clean parts 4 to move, membrane component 2 is static, and the separating layer surface of cleaning wiping brush 45 pairs of membrane components 2 of parts 4 rubs, and the solid deposits be deposited on membrane component 2 separating layer surface is swiped in the aqueous solution.
Reciprocating scouring of the present invention is one with 2 times to clean circulation, and first time cleans identical with the movement locus cleaning parts 4 in second time scouring process, and the direction of motion is contrary.
The motion of scouring parts 4 of the present invention comprises rectilinear motion and rotary motion.
The direction that the direction of motion of the present invention comprises along the contact surface or tangent plane with membrane component 2 separating layer surface is parallel moves back and forth.Usually, the separating layer surface of board-like membrane component 2 is vertical setting, clean the direction of motion of parts 4 and be generally direction or back and forth or left and right horizontal direction rectilinear motion vertically, tubular membrane element 2 be along axial parallel direction rectilinear motion or tangential direction rotate.
In reciprocating scouring process of the present invention, act on the flow direction cleaning the reciprocating aqueous solution of parts 4 and comprise unidirectional drive and bi-directional drive, the aqueous solution flow direction of bi-directional drive is contrary.
Reciprocating scouring power source of the present invention comprises power and gravity, the gravity cleaning parts 4 and the buoyancy of the aqueous solution; If install piston rod 42 on piston additional, the power transmitted by piston rod 42, in reciprocal scouring process, is acted on and cleans the driving force of parts 4 and comprise one or more power source aforesaid.
In reciprocating scouring process of the present invention, spring 43 is accumulation of energy parts, the mechanical energy etc. that the kinetic energy of the aqueous solution and potential energy, the kinetic energy cleaning parts 4 and potential energy, piston rod 42 transmit is converted into the potential energy of spring 43 by spring 43, and Direct driver or participation drive scouring parts 4 to clean.
rinse
Flushing of the present invention refers to, aforesaid first time has cleaned rear extremely aforesaid second time and has cleaned in the certain hour before starting, wash water solution flows into housing 1 from water inlet 5, wherein a part of water solution flow is through flow channel for liquids 411, flow through the runner cleaned parts 4 and formed with membrane component 2 again, flow out from delivery port 6 again, scouring parts 4 and membrane component 2 are carried out to the process of hydrodynamic cleaning.
Wash water solution of the present invention refers to without the waste water of concentrated domestic water, discharge after concentrated, through concentrated or without the mixing material of the running water concentrated.
The power resources of wash water solution of the present invention are the aqueous solution flowing into water inlet 5, and this aqueous solution both can inject from water pump 52, also can be introduced by check valve 57, preferably introduce through check valve 57.
After wash water solution of the present invention flows out from delivery port 6, the pipeline exported has single-pipeline and dual circuit two kinds of modes, be preferably single-pipeline, namely domestic water output pipe and discharge of wastewater pipeline are same pipeline, it is different pipelines that dual circuit refers to that domestic water exports from discharge of wastewater, on discharge of wastewater pipeline, namely arranges domestic water export bypass.
pure water preparation process
Pure water of the present invention preparation comprises dead-end filtration, cross-flow filtration, dead-end filtration and cross-flow filtration and to hocket three kinds of modes.
In dead-end filtration situation, the preparation of the present invention aforesaid pure water refers to clean in the certain hour before starting that circulates to the aforesaid next one after aforesaid second time has been cleaned have been carried out; The aqueous solution on membrane component 2 separating layer surface is through UF membrane layer, and enter the non-separating layer of membrane component 2, pure water is drawn from pure water inlet 21.
In cross-flow filtration situation, the preparation of the present invention's aforesaid pure water and aforesaid dead-end filtration unlike, in aforesaid pure water preparation process, through the concentrated aqueous solution continuously or interval flow out from delivery port 6.
housing
Housing 1 of the present invention refers to, bears the pressure vessel of the inner wall smooth being greater than 0.1Mpa or the hollow prism body with step, convex-concave or groove and hollow circular cylinder.
The wall of housing 1 of the present invention comprises and is not limited to that there is one and above water inlet 5, delivery port 6 and cleaning agent inlet 7.
Boss 8 on housing 1 inwall and the check valve of flow channel for liquids 411 for cooperatively interacting, the aqueous solution in guide housing 1 near water inlet 5 one end through flow channel for liquids 411, then flow through membrane component 2 and the runner cleaned parts 4 and formed, flow to delivery port 6; When the lug boss 9 of housing 1 contacts with the piston 41 cleaning parts 4, the boss 8 on housing 1 inwall and flow channel for liquids 411 depart from, and be divided into two-part housing 1 be communicated with by flow channel for liquids 411 by piston 41.
The aforesaid boss 8 of the present invention and flow channel for liquids 411 coordinate in pairs, and usually, the aqueous solution flows into from water inlet 5, flows out from delivery port 6, and boss 8 is arranged on the top of housing 1.
membrane component
Membrane component 2 in film group device of the present invention refers to: the UF membrane element encapsulated by supporter by the porous flake membrane material with separating layer and non-separating layer, membrane component 2 has pure water outlet 21, usually, pure water outlet 21 is provided with in one end of membrane component 2.
Preferably, the shape of membrane component 2 of the present invention comprises the cylinder body shape such as tabular, tubulose, and porous flake membrane material is arranged in band groove or not with on the supporter of groove through folding or folding.
In some instances, membrane component 2 of the present invention is containing one or more independently membrane component 2, or combine rear encapsulation by one or more membrane component 2 and form, preferably, one or more independently membrane component 2 is encapsulated on a connector 3.
porous flake membrane material
The aforesaid porous flake membrane material of the present invention comprises organic film material and inorganic material film.
Usually, organic film material is applicable to micro-filtration, ultrafiltration and nano-filtration membrane, advantageously choose polyolefin, such as polyethylene (PE), polypropylene (PP), polyamide (PA), polytetrafluoroethylene (PTFE), Kynoar (PVDF), polysulfones (PS) and polyether sulfone (PES).
Usually, inorganic material film is applicable to micro-filtration and ultrafiltration, advantageously chooses ceramic composite (such as ceramic membrane) and makes.
The exemplary of microfiltration membranes has the aperture within the scope of about 0.1 micron to about 10 microns.
Ultrafiltration preferably has the aperture in 0.002 micron to about 0.1 micrometer range.
The typical film for nanofiltration has the aperture in about 0.0001 micron to about 0.01 micrometer range.
clean parts
The aforesaid scouring parts 4 of the present invention are monolithic construction or fabricated structure form, preferably, are monolithic construction.
The aforesaid fabricated structure of the present invention is cleaned parts 4 and is referred to, scouring parts 4 are made more than one discrete component, is combined into more than one parts as piston 41 and piston rod 42, spring 43, fin 44 and wiping brush 45 being optimized.
In some instances, wiping brush 45 is continuous or to be discontinuously arranged on fin 44.
The aforesaid scouring parts 4 of the present invention are selected from porous material, or be composited by porous material and non-porous materials, such as PP expanded material, foaming activity charcoal, NACF, PP expanded material and activated carbon fibrous composite, these porous materials are preferably active carbon.
The active carbon of the aforesaid load bactericide of the present invention, is preferably active carbon loading silver.
The aforesaid wiping brush 45 of the present invention is made for soft material, is preferably sponge or staple fibre or polymer composite.
Preferably, the material that fin 44 of the present invention is selected is NACF.
The aforesaid wiping brush of the present invention 45 is consistent with the contact surface shape of the separating layer contact site of membrane component 2.
embodiment 1
As depicted in figs. 1 and 2, the film group device that the present invention relates to mainly comprises housing 1, membrane component 2, connector 3 and cleans parts 4; The lower end of membrane component 2 and connector 3 are packaged into an entirety, parts 4 are cleaned in the outer socket of membrane component 2, housing 1 is utilized to be encapsulated in the upper end of membrane component 2 and scouring parts 4, housing 1 is provided with a water inlet 5, delivery port 6, the bottom that pure water outlet 21 is positioned at membrane component 2 is stretched out from connector 3, the aqueous solution flows into from water inlet 5, flows out from delivery port 6, and pure water flows out from pure water outlet 21.
The volume of the present embodiment middle shell 1 is 6 liters, and the interior top of housing 1 is provided with a boss 8, and scouring parts 4 offer the flow channel for liquids 411 coordinated with it.
In the present embodiment, the length × wide × height of membrane component 2 is respectively the board-like membrane component 2 of polyamide reverse osmosis of 300mm, 200mm and 3mm, and board-like membrane component 2 is provided with a pure water outlet 21, and effective film area is 0.2 square metre; A free end of membrane component 2 is positioned at housing 1, and pure water outlet 21 is stretched out beyond connector 3; Cleaning parts 4 is integrated part, one of them face of cylinder and housing 1 matched in clearance, and form a hydraulic cylinder, its end face has a flow channel for liquids 411, and flow channel for liquids 411 and boss 8 matched in clearance, form a hydraulic selector.
The course of work of the present invention is as follows:
Water inlet 5 is often opened, open delivery port 6, the aqueous solution flows into from water inlet 5, flows into from water inlet 5, cleaning parts 4 moves down until flow channel for liquids 411 is in boss 8 be separated poised state, and scouring parts 4 complete cleans process to the first time on the separating layer surface of membrane component 2.
Close delivery port 6, under the buoyancy of cleaning parts 4, clean parts 4 and be moved upward to initial position, complete and membrane component 2 separating layer surface second time is cleaned.In second time scouring process, flow channel for liquids 411 and boss 8 change closure state into from opening, and the aqueous solution near water inlet 5 one end is flowed near delivery port 6 one end by scouring parts 4 and the gap of membrane component 2, the gap of cleaning parts 4 and housing 1 and the gap between flow channel for liquids 411 and boss 8.
Second time has been when having cleaned, and in housing 1, aqueous solution hydraulic pressure is close or reach water feeding pressure, and membrane component 2 starts to filter the aqueous solution, prepares pure water, and the water time processed is 60min.
Result shows, pure water generation is 3 liters, and the soluble ion concentration in pure water is 35ppm, and pure water output adds up to be 4 tons, and the service life of membrane component 2 is 4 years.
embodiment 2
As shown in Figures 3 to 5, the film group device of the another kind band scrubbing mechanism that the present invention relates to mainly comprises housing 1, three board-like membrane components 2, connector 3, piston 41, piston rod 42, spring 43, fin 44 and wiping brushs 45, membrane component 2 is vertically arranged in housing 1, housing 1 and membrane component 2 are connected on connector 3 and become as a whole, piston rod 42 is arranged on the top of housing 1, and spring 43 and piston rod 42 are coaxially socketed installation; Film group device have a water inlet 5, delivery port 6, pure water inlet 21 and a cleaning agent inlet 7.
Housing 1 is the hollow columnar thin-walled pressure vessel that one end is closed, and volume is 6 liters; The side inner walls of housing 1 have a boss 8 and two rectilinear projection portions 9 vertically extended; Lug boss 9 also plays position-limiting action to the operation of piston 41, and the water flowed into from flow channel for liquids 411 can be made to flow between fin 44 and membrane component 2, realize hydrodynamic cleaning, membrane component 2 is board-like membrane components 2 of polyamide reverse osmosis of 300mm × 200mm × 3mm, the board-like membrane component 2 of every sheet has a pure water inlet 21, and effective film area amounts to 0.6 square metre; The membrane component 2 of three identical filtering accuracies be arranged in parallel by identical spacing distance, is packaged into an entirety with connector 3, and a free end of membrane component 2 is positioned at housing 1, and pure water outlet 21 is stretched out beyond connector 3.
Clean parts 4 to be combined by piston 41, piston rod 42, spring 43, fin 44 and wiping brush 45, piston 41 and housing 1 matched in clearance form a hydraulic cylinder, piston 41 has a flow channel for liquids 411, flow channel for liquids 411 coordinates formation hydraulic selector with boss 8.
The course of work of the present invention is as follows:
Water inlet 5 is often opened, open delivery port 6, in housing 1, the aqueous solution flows out from delivery port 6, the aqueous solution flows into from water inlet 5, move down through piston 41, piston rod 42, fin 44 and wiping brush 45, until flow channel for liquids 411 is in boss 8 be separated poised state, completes and the separating layer surface first time of membrane component 2 is cleaned, in this process, spring 43 is compressed; Close delivery port 6, under the elastic force effect of Compress Spring 43, and under the acting in conjunction of the buoyancy of piston 41, piston rod 42, fin 44 and wiping brush 45, piston 41, piston rod 42, fin 44 and wiping brush 45 are moved upward to initial position, complete and clean the separating layer surface second time of membrane component 2.Some special circumstances (after injecting cleaning agent from injection cleaning agent inlet 7) also can pull piston rod 42 to carry out active cleaning by Manual press.
Second time has been when having cleaned, and in housing 1, aqueous solution hydraulic pressure is close or reach water feeding pressure, and membrane component 2 starts to filter the aqueous solution, prepares pure water, and the water time processed is 20min.
Result shows, pure water generation is 3 liters, and the soluble ion concentration in pure water is 35ppm, and pure water output adds up to be 5 tons, and the service life of membrane component 2 is 5 years.
embodiment 3
As shown in Figure 6, the water purifier that the present invention relates to comprises pretreatment unit 51, water pump 52, the film group device 53 being with scrubbing mechanism, valve 54, electric-control system 55, purified water collecting unit 56, check valve 57, pressure sensor 58, flow sensor 59, conductance probe 60 and domestic water valve 61, pretreatment unit 51 is intake with running water and is communicated with, pretreatment unit 51, water pump 52, film group device 53 with scrubbing mechanism, valve 54 is sequentially connected in series, purified water collecting unit 56 exports with the pure water of the film group device 53 of band scrubbing mechanism and is connected, water pump 52 check valve 57 in parallel, pressure sensor 58 is respectively equipped with and conductance pops one's head in 60 between film group device 53 with scrubbing mechanism and valve 54, flow sensor 59 is arranged on the downstream of valve 54, a bypass with domestic water valve 61 is provided with between conductance probe 60 and valve 54, for exporting domestic water, running water is through pretreatment unit 51 preliminary purification, then by being with film group device 53 deep purifying of scrubbing mechanism, the pure water obtained is stored in the storage container of purified water collecting unit 56 or directly draws, running water TDS concentration through concentrating in film group device 53 with scrubbing mechanism is when meeting the conditions such as discharge of wastewater setting value, and electric-control system 55 by-pass valve control 54 is opened, and the high concentration running water stored in the film group device 53 of band scrubbing mechanism is made discharge of wastewater, when domestic water is fetched water, the warp stored in film group device 53 with scrubbing mechanism is concentrated or use as domestic water without concentrated running water, when domestic water is fetched water, the scouring parts 4 pairs of membrane components 21 in the film group device 53 of band scrubbing mechanism are back and forth cleaned and hydrodynamic cleaning.
The duty of the water purifier that the present invention relates to critical piece under pure water preparation, domestic water conveying and discharge of wastewater state is in table 1:
The duty table of table 1 critical piece
" Y " in upper table refers to that the flow channel for liquids of water pump, check valve 57 and valve 54 is in opening state.
" N " in upper table refers to that the flow channel for liquids of water pump, check valve 57 and valve 54 is in closed condition.
" single-pipeline " in upper table refers to that domestic water conveying is the pipeline had completely with discharge of wastewater.
" dual circuit " in upper table refers to that domestic water conveying and discharge of wastewater are not exclusively total pipeline.
As shown in Figure 7, valve 54 of the present invention is for controlling domestic water conveying and discharge of wastewater, generally be arranged on discharge of wastewater pipeline, when domestic water conveying is the pipeline had completely with discharge of wastewater, control mode comprises domestic water valve 61 control and electric-control system 55 controls, domestic water valve 61 is opened or is closed, and valve 54 is in company with unlatching or close, and Ore-controlling Role 55 rate-determining steps is as follows:
The first step, the signal from pressure sensor 59 judges whether to meet unlocking condition, and when fluid pressure is less than or equal to P0, valve 54 is in closed condition, when fluid pressure is greater than P0, enters next step and judges.
Second step, the signal from conductance probe 62 judges whether to meet unlocking condition further, and when TDS concentration is less than or equal to S0, valve 54 is in closed condition, and when fluid pressure is greater than S0, valve 54 is opened.
3rd step, judges discharge of wastewater flow, judges whether satisfied closedown condition from flow sensor 61 signal, and when flow L is greater than L0, valve 54 is closed, otherwise, be in opening.
Usually, above-mentioned P0 value is greater than 0.01Mpa, preferably, is 0.02Mpa; S0 is more than 1000ppm, preferably, is 2000ppm, L0 more than 1 times of being film group device 53 liquid net capacity, is preferably 1.5 times.
Result shows, the film group device 53 liquid capacity 2000ml that the water inlet machine that the present invention relates to uses, effective film area 0.6 square metre, reverse osmosis membrane salt rejection rate is 98%, and water inlet solution TDS is 400ppm, water feeding pressure 0.5Mpa, waste water EDS is 2000ppm, preparation 8000ml pure water, the used time is about 60min, and pure water TDS is about 28ppm.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the film group device with scrubbing mechanism, it comprises housing (1), one and above membrane component (2) and connector (3), non-filtered part and the connector (3) of membrane component (2) encapsulate as a whole, connector (3) is connected with housing (1), the filtration fraction of membrane component (2) is arranged in housing (1), housing (1) is provided with water inlet (5), delivery port (6) and cleaning agent hand-hole (7), membrane component (2) is provided with pure water outlet (21), pure water is prepared under the dynamic action of the aqueous solution, it is characterized in that: be provided with in housing (1) and clean parts (4), under the aqueous solution or powered attendant-controlled wheelchairs driving, clean parts (4) reciprocating, friction cleaning is carried out to the separating layer surface of membrane component (2).
2. the film group device according to claim 1 with scrubbing mechanism, it is characterized in that: clean parts (4) and comprise piston (41), fin (44) and wiping brush (45), fin (44) is connected with piston (41), wiping brush (45) is connected with fin (44), the separating layer surface contact of wiping brush (45) and membrane component (2).
3. the film group device of band scrubbing mechanism according to claim 1, is characterized in that: piston (41) is connected with piston rod (42), and piston rod (42) free end and housing (1) matched in clearance, spring (43) is socketed on piston rod (42).
4. the film group device of the band scrubbing mechanism according to Claims 2 or 3, it is characterized in that: the inwall of housing (1) has the boss (8) extended in parallel along scouring parts (4) direction of motion, piston (41) offers flow channel for liquids (411), boss (8) and flow channel for liquids (411) form the hydraulic selector cooperatively interacted, when described hydraulic selector is opened, the aqueous solution flows to delivery port (6) one end near water inlet (5) one end through flow channel for liquids (411).
5. according to claim 4 the film group device of band scrubbing mechanism, it is characterized in that: the inwall of housing (1) is provided with lug boss (9).
6. the film group of band scrubbing mechanism according to claim 5, is characterized in that: fin (44) is containing active carbon, and the mass fraction ratio that active carbon accounts for fin (44) is 0% to 100%.
7. the film group device of band scrubbing mechanism according to claim 6, is characterized in that: described activated carbon supported bactericide.
8. one kind uses the water purifier of the film group device of band scrubbing mechanism, this water purifier comprises pretreatment unit (51), water pump (52), film group device (53), valve (54), electric-control system (55) and purified water collecting unit (56), pretreatment unit (51) is intake with running water and is communicated with, pretreatment unit (51), water pump (52), film group device (53) with scrubbing mechanism and valve (54) are sequentially connected in series, purified water collecting unit (56) exports (21) with the pure water of the film group device (53) of band scrubbing mechanism and is connected, running water is after pretreatment unit (51) preliminary purification, deep purifying is carried out by the film group device (53) of band scrubbing mechanism, pure water after deep purifying is incorporated into purified water collecting unit (56), through concentrating or drawing without the delivery port (6) of concentrated running water from the film group device (53) of band scrubbing mechanism, it is characterized in that, the upstream of the film group device (53) of described band scrubbing mechanism is provided with check valve (57), check valve (57) and water pump (52) are connected in parallel, the downstream of the film group device (53) with scrubbing mechanism is provided with conductance probe (60), the TDS signal through concentrated running water that the delivery port that conductance probe (60) gathers the film group device (53) of band scrubbing mechanism is drawn, for the duty of by-pass valve control (54).
9. the water purifier using the film group device of band scrubbing mechanism according to claim 8, it is characterized in that, pipeline between conductance probe (60) to running water water inlet is provided with pressure sensor (58), the feedwater of the film group device (53) that pressure sensor (58) gathers or discharge pressure Signal transmissions to electric-control system (55), for the duty of by-pass valve control (54).
10. the water purifier using the film group device of band scrubbing mechanism according to claim 8, it is characterized in that, pipeline between film group device (53) with scrubbing mechanism to valve (54) is provided with domestic water and exports bypass, exports in bypass be provided with domestic water valve (61) at described domestic water.
11. water purifiers using the film group device of band scrubbing mechanism according to claim 8, it is characterized in that, the downstream pipe of valve (54) is provided with flow sensor (59), measures the wastewater discharge by valve (54), in order to the duty of by-pass valve control (54).
12. water purifiers using the film group device of band scrubbing mechanism according to claim 8, it is characterized in that, the filtering accuracy of described pretreatment unit (51) is micro-filtration.
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| CN201510203854.4A CN104785109B (en) | 2015-04-27 | 2015-04-27 | Film group device with scrubbing mechanism and the water purifier using the film group device |
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| CN201510203854.4A CN104785109B (en) | 2015-04-27 | 2015-04-27 | Film group device with scrubbing mechanism and the water purifier using the film group device |
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| CN107042066A (en) * | 2017-03-06 | 2017-08-15 | 王刚 | A kind of ceramic membrane group for possessing surface automatic cleaning function |
| CN109231605A (en) * | 2018-11-22 | 2019-01-18 | 重庆市口天科技有限公司 | A kind of automation electricity floating object reason film suction device room of sewage treatment |
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| CN104785109B (en) | 2017-07-04 |
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