CN207654958U - Cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system - Google Patents

Cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system Download PDF

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Publication number
CN207654958U
CN207654958U CN201721631126.4U CN201721631126U CN207654958U CN 207654958 U CN207654958 U CN 207654958U CN 201721631126 U CN201721631126 U CN 201721631126U CN 207654958 U CN207654958 U CN 207654958U
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China
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ultrafiltration
reverse osmosis
water
super
pump
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CN201721631126.4U
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Chinese (zh)
Inventor
骆俏榕
郑振林
蔡晓鸣
苏义鹏
沈小刚
林丽华
陈育彬
汪彩明
方富林
蓝伟光
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SUNTAR MEMBRANE ENVIRONMENT TECHNOLOGY Co Ltd
Suntar Membrane Technology Xiamen Co Ltd
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SUNTAR MEMBRANE ENVIRONMENT TECHNOLOGY Co Ltd
Suntar Membrane Technology Xiamen Co Ltd
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Abstract

The utility model discloses a kind of cross-flow loop ultrafiltration super-pressure reverse osmosis treatment systems, are made of a cross-flow loop ultrafiltration portion and a super-pressure reverse-osmosis treated portion.The hyperfiltration treatment system of the utility model realizes 2~3 times of circular flow by the design of internal circulation pump, to improve film surface flow velocity, reduce the pollution of organic matter, make system stable operation, in the case where influent COD is up to 600ppm, hyperfiltration membrane assembly therein still can stable operation 3 months or more.The super-pressure reverse-osmosis treated portion of the utility model can effectively effectively concentrate the ultrafiltration of high salt concentration production water progress again, and the investment cost and operating cost of strong brine processing is greatly reduced.

Description

Cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system
Technical field
The utility model is specifically related to a kind of cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system.
Background technology
In the prior art, the raw water parameters partly after concentration are relatively high, including COD, hardness, salinity Deng, especially COD higher, or even up to 600ppm or more.Salinity has also reached 6%~8% level.Traditional design is It cannot meet the technological requirements, traditional ultrafiltration design can pollute seriously, and cleaning is frequent, and water yield is insufficient, and the film core service life subtracts A series of problems, such as short.And reverse-osmosis treated is also required to super-pressure design to meet salinity permeation requirements.
Utility model content
The purpose of this utility model is to provide a kind of cross-flow loop ultrafiltration super-pressure reverse osmosis treatment systems.
The technical solution of the utility model is as follows:
Cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system, it is reverse osmosis by a cross-flow loop ultrafiltration portion and a super-pressure Reason portion forms;
Wherein, above-mentioned cross-flow loop ultrafiltration portion includes the self-cleaning filtering unit being sequentially connected, a cross-flow loop ultrafiltration Unit and a Filtration Control unit, self-cleaning filtering unit are connected to the sand filtering device of its upstream, and cross-flow loop ultrafiltration unit includes:
One circulating pump;
One hyperfiltration membrane assembly has a ultrafiltration water inlet, ultrafiltration production water out and concentrated water outlet;
Water pot is produced in one ultrafiltration, has a production water inlet;
Backwash dosing pump and a connection ultrafiltration with a backwash component, including one chemical agent is added produce the super of water pot Filter backwashing pump;
The water inlet of above-mentioned circulating pump is connected to the water outlet of self-cleaning filtering unit by the first automatic valve, circulating pump Water outlet is connected to the ultrafiltration water inlet of hyperfiltration membrane assembly, the production water of the ultrafiltration production water out and ultrafiltration production water pot of hyperfiltration membrane assembly Import is connected to by the second automatic valve;The water inlet that the concentrated water outlet of hyperfiltration membrane assembly passes through a concentrate recirculation pipeline and circulating pump Connection passes through one first by backwash discharge pipe and a concentrated water discharge pipeline connection secondary wastewater collecting pit in parallel one It cleans return line and is connected to ultrafiltration cleaning case, wherein concentrate recirculation pipeline, upper backwash discharge pipe, concentrated water discharge pipeline and the One cleaning return line is respectively equipped with third to the 6th automatic valve;Backwash dosing pump and hyperfiltration reverse-rinsing pump clean back by second Flow tube road and the 7th automatic valve on the second cleaning return line are connected to ultrafiltration cleaning case;The ultrafiltration of hyperfiltration membrane assembly Water inlet is connected to secondary wastewater collecting pit by backwash discharge pipe once, and it is automatic which is equipped with the 8th Valve;Filtration Control unit is electrically connected with circulating pump, backwash dosing pump, hyperfiltration reverse-rinsing pump and the first to the 8th automatic valve respectively, is made A backwash is carried out after the filtering of 25~60min of cross-flow loop ultrafiltration portion progress, and is led to after carrying out 12~24 backwashes It crosses backwash dosing pump and the aqueous energy of production that chemical agent carries out soaking flushing to restore hyperfiltration membrane assembly is added;Ultrafiltration therein comes Enter in hyperfiltration membrane assembly from the raw water of self-cleaning filtering unit, the concentrated water of first part is back to by concentrate recirculation pipeline to be followed The water inlet of ring pump, the concentrated water of second part enter secondary wastewater collecting pit, the concentrated water of first part by concentrated water discharge pipeline Amount be more than second part concentrated water amount;Backwash therein is that the ultrafiltration production water that water pot is produced from ultrafiltration is passed through hyperfiltration reverse-rinsing Pump enters from the ultrafiltration of hyperfiltration membrane assembly production water out, is reversely rinsed film surface deposit therein to restore membrane filterability Energy;
The ultrafiltration production water pot in above-mentioned cross-flow loop ultrafiltration portion is connected to above-mentioned super-pressure reverse-osmosis treated portion.
In a preferred embodiment of the utility model, hyperfiltration reverse-rinsing pump by a backwash filter with it is described 7th automatic valve is connected to.
It is further preferred that described in the liquid pumped from backwash dosing pump and hyperfiltration reverse-rinsing is connected to by a pipe-line mixer 7th automatic valve.
In a preferred embodiment of the utility model, the ultrafiltration of the water outlet and hyperfiltration membrane assembly of the circulating pump Pipeline among water inlet is equipped with one first check valve.
In a preferred embodiment of the utility model, the ultrafiltration membrane in the hyperfiltration membrane assembly is super for doughnut Filter membrane.
In a preferred embodiment of the utility model, the caliber of the concentrate recirculation pipeline is the concentrated water discharge 2~3 times of the caliber of pipeline.
In a preferred embodiment of the utility model, it is all provided on the concentrated water discharge pipeline and concentrate recirculation pipeline There is flowmeter.
Further include that the ultrafiltration that is electrically connected with Filtration Control unit is clear in a preferred embodiment of the utility model Pump is washed, is connected to the ultrafiltration water inlet of the hyperfiltration membrane assembly by a chemical cleaning inlet pipeline, the chemical cleaning water inlet pipe Road is equipped with the 9th automatic valve being electrically connected with Filtration Control unit.
In a preferred embodiment of the utility model, the ultrafiltration of the circulating pump and the hyperfiltration membrane assembly is intake One compressed air line of pipeline connection between mouthful.
In a preferred embodiment of the utility model, super-pressure reverse-osmosis treated portion includes passing through pipeline phase An intake pump even, a cartridge filter, a high-pressure pump, a super-pressure reverse osmosis membrane assembly, a production pond, a concentrated water tank and one Control unit,
The water inlet end of intake pump is connected to the ultrafiltration and produces water pot, and water outlet is connected to security personnel's filtering by 1 the tenth automatic valve The water inlet end of device;The water inlet end of the water outlet connection high-pressure pump of cartridge filter;The water outlet of high-pressure pump is connected to super-pressure reverse osmosis The water inlet end of permeable membrane component;The concentrated water end of super-pressure reverse osmosis membrane assembly is connected to concentrated water tank, production by an automatic ratio regulating valve Water end (W.E.) is connected to production pond by 1 the 11st automatic valve;Control unit is adjusted with above-mentioned high-pressure pump, the tenth automatic valve, automatic ratio Valve and the electrical connection of the 11st automatic valve;
Wherein, the pipeline between the water outlet of high-pressure pump and the water inlet end of super-pressure reverse osmosis membrane assembly and super-pressure are anti- It is 10~13MPa and caliber is 45~60mm's that pipeline between the concentrated water end and concentrated water tank of permeable membrane element, which is compressive resistance, Pressure line.
It is further preferred that the super-pressure reverse osmosis membrane assembly includes first to fourth reverse osmosis membrane unit, wherein high The water outlet of press pump is respectively communicated with the water inlet end of the first reverse osmosis membrane unit and third reverse osmosis membrane unit, the first reverse osmosis membrane list The concentrated water end of member is connected to the water inlet end of the second reverse osmosis membrane unit, the concentrated water end of third reverse osmosis membrane unit and the 4th reverse osmosis The water inlet end of film unit is connected to, and the concentrated water end of the second reverse osmosis membrane unit and the 4th reverse osmosis membrane unit passes through the automatic ratio Example regulating valve is connected to the concentrated water tank, and the production water end (W.E.) of first to fourth reverse osmosis membrane unit is connected to by the 11st automatic valve Produce pond.
It is further preferred that the water inlet end of the concentrated water end of first reverse osmosis membrane unit and the second reverse osmosis membrane unit it Between pipeline and third reverse osmosis membrane unit concentrated water end and the water inlet end of the 4th reverse osmosis membrane unit between pipeline be resistance to The pressure line that Compressive Strength is 10~13MPa and caliber is 45~60mm.
It is further preferred that the pipeline between the water outlet and the water inlet end of super-pressure reverse osmosis membrane assembly of the high-pressure pump It is equipped with one second check valve.
It is further preferred that the pipe between the production water end (W.E.) of the super-pressure reverse osmosis membrane assembly and the 11st automatic valve Road is equipped with a third check valve.
The beneficial effects of the utility model:
1, the cross-flow loop ultrafiltration portion in the utility model realizes 2~3 times of circular flow by the design of internal circulation pump, To improve film surface flow velocity, the pollution of organic matter is reduced so that system stable operation is up to the feelings of 600ppm in influent COD Under condition, hyperfiltration membrane assembly therein still can stable operation 3 months or more.
2, the self-cleaning filtering unit in the cross-flow loop ultrafiltration portion in the utility model is set to before hyperfiltration membrane assembly to cut The impurity such as the possible remaining bulk dross of pre-treatment, solid particle are stayed, these impurity damage film layers are prevented.
3, the hyperfiltration membrane assembly in the cross-flow loop ultrafiltration portion in the utility model is run using cross-flow filtration mode, production water into Enter ultrafiltration production water pot, concentrated water is largely back to pump entry, and the fine colloid pollution object contained in water is trapped within film wire Outer surface.
4, the cross-flow loop ultrafiltration portion in the utility model obtains whole system and is designed as Automatic Control, and setting program carries out Normal filtration, water backwashing, EFM and offline chemical cleaning;The water that backwash and EFM are generated is discharged into preprocessing system, can To re-use, outer draining is reduced.
5, for the cross-flow loop ultrafiltration portion in the utility model in rinsing membrane module, membrane module is unnecessary to separate equipment sheet Body.
6, can effectively there be the ultrafiltration of high salt concentration production water in the super-pressure reverse-osmosis treated portion in the utility model Effect concentrates again, the investment cost and operating cost of strong brine processing is greatly reduced, while simple in structure, and system is indirect, operation It is more convenient to safeguard.
Description of the drawings
Fig. 1 is the structural schematic diagram in the cross-flow loop ultrafiltration portion of the utility model.
Fig. 2 is the structural schematic diagram in the super-pressure reverse-osmosis treated portion of the utility model.
Specific implementation mode
The technical solution of the utility model is further detailed below by way of specific implementation mode combination attached drawing and Description.
A kind of cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system, it is anti-by a cross-flow loop ultrafiltration portion 1 and a super-pressure Processing unit 3 is permeated to form.
As shown in Figure 1, cross-flow loop ultrafiltration portion 1 includes the self-cleaning filtering unit 11 being sequentially connected, a cross-flow Loop ultrafiltration unit 12 and a Filtration Control unit (not shown), wherein self-cleaning filtering unit 11 is connected to its upstream Sand filtering device, cross-flow loop ultrafiltration unit 12 include a circulating pump 121, a hyperfiltration membrane assembly 122,123 and of ultrafiltration production water pot One backwash component 124.
Hyperfiltration membrane assembly 122 has a ultrafiltration water inlet 1220, ultrafiltration production water out 1221 and concentrated water outlet 1222, In ultrafiltration membrane be hollow fiber ultrafiltration membrane;
Water pot 123 is produced in ultrafiltration has a production water inlet 1230;
Backwash component 124 is connected to ultrafiltration production water pot the backwash dosing pump 1241 of chemical agent is added including one with one 123 hyperfiltration reverse-rinsing pump 1242;
The water inlet of above-mentioned circulating pump 121 is connected to the water outlet of self-cleaning filtering unit 11 by the first automatic valve 4j, The water outlet of circulating pump 121 is connected to the ultrafiltration water inlet 1220 of hyperfiltration membrane assembly 122, meanwhile, the water outlet of circulating pump 121 with Pipeline among the ultrafiltration water inlet 1220 of hyperfiltration membrane assembly 122 is equipped with one first check valve 5a, and circulating pump 121 and ultrafiltration One compressed air line 1211 of pipeline connection between the ultrafiltration water inlet 1220 of membrane module 122;In addition a ultrafiltration cleaning pump 1212 are connected to by a chemical cleaning inlet pipeline 1213 with the ultrafiltration water inlet 1220 of hyperfiltration membrane assembly 122, the chemical cleaning Inlet pipeline is equipped with a 9th automatic valve 4i being electrically connected with Filtration Control unit.
The ultrafiltration production water out 1221 of hyperfiltration membrane assembly 122 and the production water inlet 1230 of ultrafiltration production water pot 123 pass through second Automatic valve 4b connections;The concentrated water outlet 1222 of hyperfiltration membrane assembly 122 by a concentrate recirculation pipeline 1223 and circulating pump 121 into The mouth of a river is connected to, and secondary wastewater collecting pit is connected to a concentrated water discharge pipeline 1225 by backwash discharge pipe 1224 in parallel one 1226, pass through one first cleaning return line 1227 and be connected to ultrafiltration cleaning case 1228, wherein is concentrate recirculation pipeline 1223, upper anti- Wash discharge pipe 1224, concentrated water discharge pipeline 1225 and first cleans return line 1227 and is respectively equipped with third to the 6th automatic valve It is equipped with flowmeter on 4c~4f, concentrated water discharge pipeline 1225 and concentrate recirculation pipeline 1223.Preferably, concentrate recirculation pipeline 1223 caliber is 2~3 times of the caliber of the concentrated water discharge pipeline 1225.
Backwash dosing pump 1241 and hyperfiltration reverse-rinsing pump 1242 by second cleaning return line 1243 and set on this second The 7th automatic valve 4g on cleaning return line 1243 is connected to ultrafiltration cleaning case 1228, and hyperfiltration reverse-rinsing pump 1242 passes through a backwash Filter 1244 is connected to the 7th automatic valve 4g, wherein the liquid from backwash dosing pump 1241 and hyperfiltration reverse-rinsing pump 1242 Body is connected to by a pipe-line mixer 1245;
The ultrafiltration water inlet 1220 of hyperfiltration membrane assembly 122 is connected to secondary wastewater by backwash discharge pipe 1229 once and collects Pond 1226, the lower backwash discharge pipe 1229 are equipped with the 8th automatic valve 4h;
Filtration Control unit pumps 1242, ultrafiltration cleaning pump with circulating pump 121, backwash dosing pump 1241, hyperfiltration reverse-rinsing respectively 1212 and first to the 8th automatic valve 4j~4h electrical connection, after so that cross-flow loop ultrafiltration portion 1 is carried out the ultrafiltration of 25~60min Carry out a backwash, and after carrying out 12~24 backwashes by backwash dosing pump 1241 addition chemical agent (preferably NaClO, NaOH and HCl) soaking flushing is carried out the aqueous energy of production that restores hyperfiltration membrane assembly 122;Ultrafiltration therein is to come from self-cleaning The raw water of filter unit 11 enters in hyperfiltration membrane assembly 122, and the concentrated water of first part is back to by concentrate recirculation pipeline 1223 to be followed The water inlet of ring pump 121, the concentrated water of second part enter secondary wastewater collecting pit 1226 by concentrated water discharge pipeline 1225, and first The amount of partial concentrated water is more than the amount of the concentrated water of second part;Backwash therein is that the ultrafiltration production of water pot 123 will be produced from ultrafiltration Water produces water out 1221 from the ultrafiltration of hyperfiltration membrane assembly 122 by hyperfiltration reverse-rinsing pump 1242 and enters, reversely heavy to film surface therein Product object is rinsed to restore membrane filtration characteristic.
The operating process in the cross-flow loop ultrafiltration portion in the utility model is as follows:
(1) before ultrafiltration normally produces water, the exhaust of main line water-filling is first passed through, enters back into 122 water-filling of hyperfiltration membrane assembly row Gas, 122 vent sequence of hyperfiltration membrane assembly are as follows:1, the gas in first both sides water inlet row's membrane tube;2, in unilateral water inlet discharge film wire Gas, it is formal to enter production water program to ensure that the gas in hyperfiltration membrane assembly 122 is all discharged.
(2) when filter cycle or transmembrane pressure reach setting value, Filtration Control unit control system is automatically into backwash Process closes corresponding inlet valve and production water valve, opens backwash inlet valve and backwash drain valve, starts hyperfiltration reverse-rinsing pump 1242, Start simultaneously selected the backwash dosing pump 1241 of sodium hypochlorite and sodium hydroxide (or hydrochloric acid), backwash overall process knot is added Beam, system continue normal production water automatically into filter cycle;
(3) when number of backwashes arrival setting value or fouling membrane are heavier, production water flow is relatively low, in last time backwash knot Shu Shi first opens the 4th to the 8th automatic valve 4d~4h automatically into dispersion cleaning process, starts hyperfiltration reverse-rinsing pump 1242, together Shi Qidong it is selected the backwash dosing pump 1241 of sodium hypochlorite and sodium hydroxide (or hydrochloric acid) is added, to hyperfiltration membrane assembly Dosing in 122, after the completion of administration timing of drug, all valves of closing assembly impregnate film wire with medicament, and soaking time is completed Afterwards, then automatically a backwash process is carried out, into filter cycle, continues normal production water;
(4) when membrane module pollution is more serious, after conventional backwash and dispersion cleaning for several times, membrane flux recovery cannot still meet life Production requires, and need to carry out offline chemical cleaning.After the shutdown of hyperfiltration membrane assembly 122, the corresponding 9th for chemical cleaning is opened Automatic valve 4i, third automatic valve 4c and the second automatic valve 4b prepare cleaning solution in ultrafiltration purge tank, start ultrafiltration cleaning pump 1212 carry out wash cycles, are impregnated and recycled cleaning when necessary, and membrane flux is cleaned and restore to strengthen.
In summary it describes, it, generally can be according to residing for it when the work of cross-flow loop ultrafiltration portion in the utility model Working condition is divided into:Operation, backwash, disperse chemical cleaning and offline chemical cleaning.Operation therein, backwash, disperse chemical are clear It is on-line automatic progress to wash, offline chemical cleaning manual operation.
As shown in Fig. 2, super-pressure reverse-osmosis treated portion 3, design pressure 12.0Mpa, including be connected by pipeline An intake pump 31, a cartridge filter 32, a high-pressure pump 33, a super-pressure reverse osmosis membrane assembly 34, one production pond 35, one it is dense Water pot 36 and a reverse osmosis control unit,
The water inlet end of intake pump 31 is connected to the ultrafiltration and produces water pot 123, and water outlet is connected to by 1 the tenth automatic valve 4j The water inlet end of cartridge filter 32;The water inlet end of the water outlet connection high-pressure pump 33 of cartridge filter 32;The water outlet of high-pressure pump 33 The water inlet end of end connection super-pressure reverse osmosis membrane assembly 34, the water outlet of high-pressure pump 33 and super-pressure reverse osmosis membrane assembly 34 into Pipeline between water end (W.E.) is equipped with one second check valve 5b;The concentrated water end of super-pressure reverse osmosis membrane assembly 34 passes through an automatic ratio Regulating valve 9 is connected to concentrated water tank 36, and production water end (W.E.) passes through 1 the 11st automatic valve 4k connection productions pond 35, super-pressure reverse osmosis membrane assembly Pipeline between 34 production water end (W.E.) and the 11st automatic valve 4k is equipped with a third check valve 5c;Control unit and above-mentioned high pressure Pump the 33, the tenth automatic valve 4j, automatic ratio regulating valve 9 and the 11st automatic valve 4k electrical connections.
Preferably, the super-pressure reverse osmosis membrane assembly 34 includes first to fourth reverse osmosis membrane unit 341~344, The water outlet of mesohigh pump 33 is respectively communicated with the water inlet end of the first reverse osmosis membrane unit 341 and third reverse osmosis membrane unit 343, the The concentrated water end of one reverse osmosis membrane unit 341 is connected to the water inlet end of the second reverse osmosis membrane unit 342, third reverse osmosis membrane unit 343 concentrated water end is connected to the water inlet end of the 4th reverse osmosis membrane unit 344, and the second reverse osmosis membrane unit 342 and the 4th is reverse osmosis The concentrated water end of film unit 344 is connected to by the automatic ratio regulating valve 9 with the concentrated water tank 36, and first to fourth is reverse osmosis The production water end (W.E.) of film unit 341~344 passes through the 11st automatic valve 4k connection productions pond 35.
Pipeline, super-pressure between the water outlet and the water inlet end of super-pressure reverse osmosis membrane assembly 34 of high-pressure pump 33 is reverse osmosis The concentrated water end of pipeline, the first reverse osmosis membrane unit 341 between the concentrated water end and concentrated water tank 36 of membrane module 34 and second reverse osmosis Pipeline and 343 concentrated water end of third reverse osmosis membrane unit between the water inlet end of film unit 342 and the 4th reverse osmosis membrane unit 344 Water inlet end between pipeline be compressive resistance is 10~13MPa and caliber is 45~60mm pressure line.
The super-pressure reverse-osmosis treated portion 3 can effectively effectively concentrate the ultrafiltration of high salt concentration production water progress again, greatly Width reduces the investment cost and operating cost of strong brine processing, while simple in structure, and system is indirect, and operation and maintenance are more convenient.
The above, the only preferred embodiment of the utility model, therefore the utility model implementation cannot be limited according to this Range all should still belong to this practicality that is, according to equivalent changes and modifications made by the utility model patent range and description It is novel cover in the range of.

Claims (8)

1. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system, it is characterised in that:By a cross-flow loop ultrafiltration portion and a superelevation Press reverse-osmosis treated portion composition;
Wherein, above-mentioned cross-flow loop ultrafiltration portion includes the self-cleaning filtering unit being sequentially connected, a cross-flow loop ultrafiltration unit With a Filtration Control unit, self-cleaning filtering unit is connected to the sand filtering device of its upstream, and cross-flow loop ultrafiltration unit includes:
One circulating pump;
One hyperfiltration membrane assembly has a ultrafiltration water inlet, ultrafiltration production water out and concentrated water outlet;
Water pot is produced in one ultrafiltration, has a production water inlet;
It is anti-to the ultrafiltration that the backwash dosing pump and a connection ultrafiltration production water pot of chemical agent is added with a backwash component, including one Wash pump;
The water inlet of above-mentioned circulating pump is connected to the water outlet of self-cleaning filtering unit by the first automatic valve, the water outlet of circulating pump Mouth is connected to the ultrafiltration water inlet of hyperfiltration membrane assembly, the production water inlet of the ultrafiltration production water out and ultrafiltration production water pot of hyperfiltration membrane assembly It is connected to by the second automatic valve;The concentrated water outlet of hyperfiltration membrane assembly is connected by the water inlet of a concentrate recirculation pipeline and circulating pump It is logical, it is clear by one first by backwash discharge pipe and a concentrated water discharge pipeline connection secondary wastewater collecting pit in parallel one Wash return line connection ultrafiltration cleaning case, wherein concentrate recirculation pipeline, upper backwash discharge pipe, concentrated water discharge pipeline and first Cleaning return line is respectively equipped with third to the 6th automatic valve;Backwash dosing pump and hyperfiltration reverse-rinsing pump are flowed back by the second cleaning Pipeline and the 7th automatic valve on the second cleaning return line are connected to ultrafiltration cleaning case;The ultrafiltration of hyperfiltration membrane assembly into The mouth of a river is connected to secondary wastewater collecting pit by backwash discharge pipe once, which is equipped with the 8th automatic valve; Filtration Control unit is electrically connected with circulating pump, backwash dosing pump, hyperfiltration reverse-rinsing pump and the first to the 8th automatic valve respectively, is made described A backwash is carried out after the filtering of 25~60min of cross-flow loop ultrafiltration portion progress, and by anti-after carrying out 12~24 backwashes It washes dosing pump and the aqueous energy of production that chemical agent carries out soaking flushing to restore hyperfiltration membrane assembly is added;
The ultrafiltration production water pot in above-mentioned cross-flow loop ultrafiltration portion is connected to above-mentioned super-pressure reverse-osmosis treated portion.
2. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system as described in claim 1, it is characterised in that:The ultrafiltration is anti- Pump is washed to be connected to the 7th automatic valve by a backwash filter.
3. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system as claimed in claim 2, it is characterised in that:From backwash plus Teat pipette is connected to the 7th automatic valve with the liquid that hyperfiltration reverse-rinsing pumps by a pipe-line mixer.
4. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system as described in claim 1, it is characterised in that:Further include one with The ultrafiltration cleaning pump of Filtration Control unit electrical connection, by the ultrafiltration of a chemical cleaning inlet pipeline and the hyperfiltration membrane assembly into The mouth of a river is connected to, which is equipped with the 9th automatic valve being electrically connected with Filtration Control unit.
5. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system as described in claim 1, it is characterised in that:The circulating pump One compressed air line of pipeline connection between the ultrafiltration water inlet of the hyperfiltration membrane assembly.
6. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system as described in claim 1, it is characterised in that:The super-pressure Reverse-osmosis treated portion includes an intake pump, a cartridge filter, a high-pressure pump, the super-pressure reverse osmosis membrane being connected by pipeline Component, a production pond, a concentrated water tank and a control unit,
The water inlet end of intake pump is connected to the ultrafiltration and produces water pot, and water outlet is connected to cartridge filter by 1 the tenth automatic valve Water inlet end;The water inlet end of the water outlet connection high-pressure pump of cartridge filter;The water outlet of high-pressure pump is connected to super-pressure reverse osmosis membrane The water inlet end of component;The concentrated water end of super-pressure reverse osmosis membrane assembly is connected to concentrated water tank by an automatic ratio regulating valve, produces water end (W.E.) It is connected to production pond by 1 the 11st automatic valve;Control unit and above-mentioned high-pressure pump, the tenth automatic valve, automatic ratio regulating valve and 11st automatic valve is electrically connected;
Wherein, the pipeline between the water outlet of high-pressure pump and the water inlet end of super-pressure reverse osmosis membrane assembly and super-pressure are reverse osmosis Pipeline between the concentrated water end and concentrated water tank of membrane module is the pressure resistance that compressive resistance is 10~13MPa and caliber is 45~60mm Pipeline.
7. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system as claimed in claim 6, it is characterised in that:The super-pressure Reverse osmosis membrane assembly includes first to fourth reverse osmosis membrane unit, and the water outlet of wherein high-pressure pump is respectively communicated with the first reverse osmosis membrane The water inlet end of unit and third reverse osmosis membrane unit, the concentrated water end of the first reverse osmosis membrane unit and the second reverse osmosis membrane unit into Water end (W.E.) is connected to, and the concentrated water end of third reverse osmosis membrane unit is connected to the water inlet end of the 4th reverse osmosis membrane unit, the second reverse osmosis membrane The concentrated water end of unit and the 4th reverse osmosis membrane unit is connected to by the automatic ratio regulating valve with the concentrated water tank, first to The production water end (W.E.) of 4th reverse osmosis membrane unit is connected to production pond by the 11st automatic valve.
8. cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system as claimed in claim 7, it is characterised in that:Described first is anti- Pipeline and third reverse osmosis membrane unit between the concentrated water end and the water inlet end of the second reverse osmosis membrane unit of osmosis membrane unit is dense Pipeline between water end (W.E.) and the water inlet end of the 4th reverse osmosis membrane unit be compressive resistance be 10~13MPa and caliber be 45~ The pressure line of 60mm.
CN201721631126.4U 2017-11-29 2017-11-29 Cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system Active CN207654958U (en)

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Application Number Priority Date Filing Date Title
CN201721631126.4U CN207654958U (en) 2017-11-29 2017-11-29 Cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system

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Application Number Priority Date Filing Date Title
CN201721631126.4U CN207654958U (en) 2017-11-29 2017-11-29 Cross-flow loop ultrafiltration super-pressure reverse osmosis treatment system

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