CN107879524A - Can online backwashing reverse osmosis water treatment system - Google Patents

Can online backwashing reverse osmosis water treatment system Download PDF

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Publication number
CN107879524A
CN107879524A CN201711217974.5A CN201711217974A CN107879524A CN 107879524 A CN107879524 A CN 107879524A CN 201711217974 A CN201711217974 A CN 201711217974A CN 107879524 A CN107879524 A CN 107879524A
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CN
China
Prior art keywords
water
reverse osmosis
valve
osmosis membrane
level
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Pending
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CN201711217974.5A
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Chinese (zh)
Inventor
包建华
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Zhangjiagang Jinma Star Machinery Manufacturing Co Ltd
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Zhangjiagang Jinma Star Machinery Manufacturing Co Ltd
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Application filed by Zhangjiagang Jinma Star Machinery Manufacturing Co Ltd filed Critical Zhangjiagang Jinma Star Machinery Manufacturing Co Ltd
Priority to CN201711217974.5A priority Critical patent/CN107879524A/en
Publication of CN107879524A publication Critical patent/CN107879524A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations

Abstract

The invention discloses it is a kind of can online backwashing reverse osmosis water treatment system, including raw water high-pressure pump, active carbon filtering device, first-stage reverse osmosis membrane module, two-pass reverse osmosis membrane module and the purging system being sequentially connected along water (flow) direction, raw water high-pressure pump purging system includes concentration of lotion detection means, the water side of concentration of lotion detection means is divided into two-way, export and connect with first-stage reverse osmosis membrane module concentrated water all the way, another way connects with the outlet of two-pass reverse osmosis membrane module concentrated water;Produce and ultraviolet sterilization apparatus is set at the mouth of a river.The present invention realizes and first-stage reverse osmosis membrane module, two-pass reverse osmosis membrane module is rinsed using raw water as rinse water, support progressively to carry out online back flush to reverse osmosis membrane assemblies at different levels by the switching of water pipes at different levels and control valve.

Description

Can online backwashing reverse osmosis water treatment system
Technical field
The present invention relates to reverse osmosis water treatment system technical field, and counter-infiltration system cleaning dress is utilized more particularly to one kind Put realize can online backwashing reverse osmosis water treatment system.
Background technology
Reverse osmosis technology is now widely used for water treatment field, and its operation principle is using pressure differential as power, utilizes film Selective penetrated property reach the separation of solvent and solute.Due to the selective penetrated property of film, solute is on reverse osmosis membrane surface in water inlet Concentration, form precipitation and be attached to reverse osmosis membrane surface or be jammed in reverse osmosis membrane fenestra, cause reverse osmosis membrane to pollute, under performance Drop.Due to the difference of influent quality, pollute reverse osmosis membrane material include hydrated metal oxide, carbonate, Sulfates, Silicic acid class, organic species, microbiology class etc..
Reverse-osmosis membrane element can recover major part or partial properties, then clean no longer after the cleaning by chemistry It is effective, in the case that function does not reach requirement, it is necessary to change reverse osmosis membrane.Current reverse osmosis membrane typically all carries The function of forward direction cleaning;In practical operation, if reverse-osmosis membrane element removed from counter-infiltration system, packing is exchanged Installation site, back flush is carried out to reverse-osmosis membrane element offline, wasted time and energy, installation is also inconvenient.But forward direction cleaning is easy Cause above membrane component pollution shifts backward, cleaning not thorough so that the cleaning of reverse osmosis membrane becomes frequent, causes running cost Increase, the increase of cleaning charge, the service life reduction of reverse-osmosis membrane element.
The content of the invention
In order to overcome the shortcomings of above-mentioned existing counter-infiltration system technology, the present invention is provided one kind and cleaned using counter-infiltration system Device realizes the technical scheme of the counter-infiltration system of online backwashing, and the system supports reverse osmosis membrane assembly to carry out online reversely punching Wash.To reach above-mentioned purpose, the invention provides a kind of technical scheme:
It is a kind of can online backwashing reverse osmosis water treatment system, including the raw water high pressure being sequentially connected along water (flow) direction Pump (1), first-stage reverse osmosis membrane module (3), two-pass reverse osmosis membrane module (4) and purging system, raw water high-pressure pump (1) go out Active carbon filtering device (2), the activated carbon filtering are set between mouth end and the raw water arrival end of first-stage reverse osmosis membrane module (3) Device (2) port of export connects the raw water arrival end of first-stage reverse osmosis membrane module (3) all the way, and another way backwashes return valve through one-level (23) purging system is connected;The water outlet of the first-stage reverse osmosis membrane module (3) produces water discharging valve (5,6) even through one-level Practice midwifery the mouth of a river;The concentrated water of the first-stage reverse osmosis membrane module (3) exports is divided into two-way through one-level backwash valve (7,8), connects all the way One-level concentrated water discharge valve (10) is connect, connects the two-pass reverse osmosis film by two-pass reverse osmosis original water inlet valve (9) all the way in addition The raw water entrance of component (4);The water outlet of the two-pass reverse osmosis membrane module (4) produces water discharging valve (11) connection production through two level The mouth of a river;The concentrated water outlet of the two-pass reverse osmosis membrane module (4) is divided into two-way, connects two level concentrated water discharge valve (13) all the way, separately Connect the purging system through two level backwash valve (12) all the way outside;The purging system includes concentration of lotion detection means (20), the water side of the concentration of lotion detection means (20) is divided into two-way, passes through one-level backwash valve (7,8) respectively all the way Export and connect with first-stage reverse osmosis membrane module (3) concentrated water, another way passes through two level backwash valve (12) and two-pass reverse osmosis film group Part (4) concentrated water outlet connection;Ultraviolet sterilization apparatus (14) is set at the production mouth of a river.Further, the purging system is also Including the cleaning water tank (15), flushing water pump (18) and cleaning filter (19) being sequentially connected along water (flow) direction, the rinse water It is connected between case (15) and flushing water pump (18) and flushing water pump water intaking valve (17) is set, the connection of described cleaning water tank (15) bottom is set Put clear water water tank drain valve (16).
Further, two level is set between the two-pass reverse osmosis original water inlet valve (9) and two-pass reverse osmosis membrane module (4) Return valve (25) is backwashed, the two level backwash return valve (25) is connected with the cleaning water tank (15).
Further, the cleaning filter (19) is provided with backwash valve, and the backwash valve upper end offers backwash Valve body port, described backwash are sequentially arranged with backwash valve element, backwash valve sealing ring, recoil at valve body port Wash valve body top cover and backwash knob.A backwash valve is added on the fore filter of routine, solves impurity attachment Can not be rinsed well on filter screen the problem of, the demounting procedure of cleaning filter is reduced, it is user-friendly.
Preferably, the first-stage reverse osmosis membrane module (3) is made up of more than one group of reverse osmosis membrane assembly parallel connection.It is preferred that Ground, it is 2 that first-stage reverse osmosis membrane module (3) the group number organizes the ratio between number with two-pass reverse osmosis membrane module (4):1.
Further, the water side of the concentration of lotion detection means (20) is divided into two-way, all the way delivery port and one-level Set one-level to clean water valve (22) between backwash valve (7,8), set between another way delivery port and two level backwash valve (12) Two level cleaning water valve (21);Set between the active carbon filtering device (2) and first-stage reverse osmosis membrane module (3) raw water entrance high Press regulating valve (24).
The present invention is beneficial to be had technical effect that:
1. by the switching of water pipes at different levels and control valve, realize using raw water as rinse water to first-stage reverse osmosis membrane module, Two-pass reverse osmosis membrane module is rinsed, and supports progressively to carry out online back flush to reverse osmosis membrane assemblies at different levels, so as to improve The adaptability to various water quality of reverse osmosis unit, is carried out so as to reduce systematic running cost with and to reverse osmosis membrane assembly Cost is backwashed, in actual applications with obvious economic benefit and environmental benefit.
2. the online backwashing of reverse osmosis membrane assemblies at different levels can be realized, it is not necessary to which original system is made with simple economy Very big variation, cost is also very low, and the online backwashing technology can typically extend the service life 1/ of reverse osmosis membrane 3, while run simple to operate, using automatic valve, realize and shut down automatic backwash.
3. purging system forms circulation flushing, rinse water with first-stage reverse osmosis membrane module and two-pass reverse osmosis membrane module respectively The cleaning fluid flowed out respectively by first-stage reverse osmosis membrane module and two-pass reverse osmosis membrane module flows back to the rinse water of purging system again Case;In addition, purging system is entered by setting concentration of lotion detection means to entering the cleaning solution concentration in reverse osmosis membrane assembly Row measurement, whether so as to control cleaning solution to inject, whether clean water is changed or flushing operation is completed, can be effectively by reverse osmosis membrane The obstinate thing for being difficult to clear up in component is cleaned, and is ensured the clean-up performance of reverse osmosis membrane assembly, is increased the service life, and improves production Water.
4. being provided with active carbon filtering device before reverse osmosis membrane assembly device, the larger pollution of particle can be effectively filtered Thing, effectively extend the service life of film in reverse-osmosis filtering device, reduce the pollution speed of reverse osmosis membrane in reverse-osmosis filtering device Degree and degree, reduce the frequency backwashed to reverse osmosis membrane assembly and single backwash cost.
5. production is provided with ultraviolet sterilization apparatus at the mouth of a river, make further sterilization to water purification, ensure water purification quality.
Brief description of the drawings
Fig. 1 be the present invention can online backwashing reverse osmosis water treatment system structural representation
In figure:1- raw waters high-pressure pump, 2- active carbon filtering devices, 3- first-stage reverse osmosis membrane module, 4- two level reverse osmosis Permeable membrane component, 5- one-levels production water discharging valve, 6- one-levels production water discharging valve, 7- one-levels backwash valve, 8- one-levels backwash valve, 9- two-pass reverse osmosis original water inlets valve, 10- one-level concentrated water discharges valve, 11- two levels production water discharging valve, the backwash of 12- two levels Valve, 13- two level concentrated water discharges valve, 14- ultraviolet sterilization apparatus, 15- cleanings water tank, 16- clear water water tanks drain valve, 17- Flushing water pump water intaking valve, 18- flushing water pumps, 19- cleanings filter, 20- concentration of lotion detection means, 21- two levels are clear Wash water valve, 22- one-levels cleaning water valve, 23- one-levels backwash return valve, 24- septum valves, 25- two levels backwash back Flow valve
Embodiment
Presently in connection with accompanying drawing it is a kind of to embodiment of the present invention can the reverse osmosis water treatment system of online backwashing make into one The explanation of step, it is as shown in Figure 1 can online backwashing reverse osmosis water treatment system structural representation.
It is a kind of can online backwashing reverse osmosis water treatment system, including the raw water high-pressure pump being sequentially connected along water (flow) direction 1st, first-stage reverse osmosis membrane module 3, two-pass reverse osmosis membrane module 4 and purging system, the port of export and the one-level reverse osmosis of raw water high-pressure pump 1 Active carbon filtering device 2 is set between the raw water arrival end of permeable membrane component 3, and the port of export of active carbon filtering device 2 connects one all the way The raw water arrival end of level reverse osmosis membrane assembly 3, wherein active carbon filtering device 2 and the raw water entrance of first-stage reverse osmosis membrane module 3 it Between set septum valve 24, another way through one-level backwash return valve 23 connect purging system;First-stage reverse osmosis membrane module 3 Water outlet produces water discharging valve 5, the one-level production connection production of water discharging valve 6 mouth of a river through one-level;The concentrated water of first-stage reverse osmosis membrane module 3 goes out Mouthful divide through one-level backwash valve 7, one-level backwash valve 8 for two-way, connect one-level concentrated water discharge valve 10 all the way, pass through all the way in addition Two-pass reverse osmosis original water inlet valve 9 connects the raw water entrance of two-pass reverse osmosis membrane module 4;The fresh water of two-pass reverse osmosis membrane module 4 Outlet is through the two level production connection production of water discharging valve 11 mouth of a river;The concentrated water outlet of two-pass reverse osmosis membrane module 4 is divided into two-way, connects all the way Two level concentrated water discharge valve 13, connect purging system through two level backwash valve 12 all the way in addition;Purging system is also included along current side To cleaning water tank 15, flushing water pump 18, cleaning filter 19 and the concentration of lotion detection means 20 being sequentially connected, water tank is cleaned Connection sets flushing water pump water intaking valve 17 between 15 and flushing water pump 18, and the connection of cleaning water tank 15 bottom sets the discharge of clear water water tank Valve 16;Cleaning filter 19 is provided with backwash valve, and backwash valve upper end offers backwash valve body port, backwashes valve body port Place is sequentially arranged with backwash valve element, backwash valve sealing ring, backwash valve body top cover and backwash knob;Cleaning The water side of liquid concentration detection apparatus 20 is divided into two-way, passes through one-level backwash valve 7, one-level backwash valve 8 and one respectively all the way The outlet connection of level reverse osmosis membrane assembly 3 concentrated water, and set between delivery port and one-level backwash valve 7, one-level backwash valve 8 One-level cleans water valve 22, and another way is connected by two level backwash valve 12 and the outlet of the concentrated water of two-pass reverse osmosis membrane module 4, and Two level is set to clean water valve 21 between delivery port and two level backwash valve 12;Produce and ultraviolet sterilization apparatus 14 is set at the mouth of a river.
First-stage reverse osmosis membrane module 3 is made up of more than one group of reverse osmosis membrane assembly parallel connection, with reference to accompanying drawing 1, the present embodiment First-stage reverse osmosis membrane module 3 is made up of 2 groups of reverse osmosis membrane assembly parallel connections, or 1 group, 3 groups, 4 groups, 5 groups etc. it is a number of Reverse osmosis membrane assembly it is in parallel form, selected according to the water quality situation of processing.3 groups of numbers of first-stage reverse osmosis membrane module and two level The ratio between 4 groups of numbers of reverse osmosis membrane assembly are 2:1, with reference to accompanying drawing 1, the present embodiment two-pass reverse osmosis membrane module quantity is 1 group;Work as one-level When reverse osmosis membrane assembly 3 is made up of 4 groups of reverse osmosis membrane assembly parallel connections, two-pass reverse osmosis membrane module quantity is 2 groups, by that analogy.
The course of work:During reverse osmosis water treatment system operation production water, open raw water high-pressure pump 1, active carbon filtering device 2, Septum valve 24, one-level production water discharging valve 5, one-level production water discharging valve 6, one-level backwash valve 7, one-level backwash valve 8, two level Counter-infiltration original water inlet valve 9, two level production water discharging valve 11, two level concentrated water discharge valve 13, ultraviolet sterilization apparatus 14, close one-level Other all valves such as concentrated water discharge valve 10, two level backwash valve 12 and one-level backwash return valve 23, operating pressure 1.0MPa ~1.5MPa, carries out positive production production water, and raw water is handled after the filtering of active carbon filtering device 2 by first-stage reverse osmosis membrane module 3 After be divided into water outlet and concentrated water outlet two-way outlet, fresh water from water outlet respectively by one-level production water discharging valve 5, one-level production Water discharging valve 6 uses after the sterilization processing of ultraviolet sterilization apparatus 14 as final process water quality, concentrated water from concentrated water export into Enter two-pass reverse osmosis membrane module and be further further divided into water outlet and concentrated water outlet two-way outlet after processing, fresh water is from water outlet By two level production water discharging valve 11 used after the sterilization processing of ultraviolet sterilization apparatus 14 as final process water quality, concentrated water from Discharged in two level concentrated water discharge valve 13.
When backwashing the 1st group of reverse osmosis membrane assembly in first-stage reverse osmosis membrane module 3, top counter-infiltration is seen as from accompanying drawing 1 Membrane module, raw water high-pressure pump 1, active carbon filtering device 2, one-level backwash return valve 23 are opened, closes other all valves, it is high Pressure raw water enters cleaning water tank 15, after waiting cleaning water tank 15 to fill rinse water, closes raw water high-pressure pump 1 and one-level backwashes back Flow valve 23;Start purging system, start flushing water pump 18, flushing water pump water intaking valve 17, one-level cleaning water valve 22, one-level backwash Valve 7, septum valve 24 and one-level backwash return valve 23, close other all valves, rinse water is through over cleaning filter 19 With concentration of lotion detection means 20, circulation backwash is carried out to the 1st group of reverse osmosis membrane assembly in first-stage reverse osmosis membrane module 3, Concentration of lotion detection means 20 measures to cleaning solution concentration, so as to control cleaning solution whether to inject, rinse water whether more Change or flushing operation is completed, rinse water, which needs to change, then opens the discharge rinse water of clear water water tank drain valve 16, again to rinse water Case 15 carries out raw water injection.
When backwashing the 2nd group of reverse osmosis membrane assembly in first-stage reverse osmosis membrane module 3, bottom counter-infiltration is seen as from accompanying drawing 1 Membrane module, start flushing water pump 18, flushing water pump water intaking valve 17, one-level cleaning water valve 22, one-level backwash valve 8, high voltage adjusting Valve 24 and one-level backwash return valve 23, close other all valves, rinse water is through over cleaning filter 19 and concentration of lotion Detection means 20, circulation backwash, concentration of lotion inspection are carried out to the 2nd group of reverse osmosis membrane assembly in first-stage reverse osmosis membrane module 3 Survey device 20 to measure cleaning solution concentration, whether so as to control cleaning solution to inject, whether rinse water changes or flushing operation Complete, rinse water, which needs to change, then opens the discharge rinse water of clear water water tank drain valve 16, carries out raw water to cleaning water tank 15 again Injection.
When backwashing two-pass reverse osmosis membrane module 4, start flushing water pump 18, flushing water pump water intaking valve 17, two level rinse water Valve 21, two level backwash valve 12 and two level backwash return valve 25, close other all valves, rinse water is through over cleaning filter 19 and concentration of lotion detection means 20, circulation backwash, concentration of lotion detection means are carried out to two-pass reverse osmosis membrane module 4 20 pairs of cleaning solution concentration are measured, and whether so as to control cleaning solution to inject, whether rinse water is changed or flushing operation is completed, clearly Wash water, which needs to change, then opens the discharge rinse water of clear water water tank drain valve 16, carries out raw water injection to cleaning water tank 15 again.
As the deformation of the present embodiment, rinse water can also be connected with pipeline by fresh water Water filling valve is newly increased at the production mouth of a river Case 15, the rinse water using treated fresh water as purging system.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique People understands present disclosure and is carried out, and it is not intended to limit the scope of the present invention, all according to spirit of the invention The equivalent change or modification that essence is done, it should all cover within the scope of the present invention.

Claims (7)

1. it is a kind of can online backwashing reverse osmosis water treatment system, including the raw water high-pressure pump being sequentially connected along water (flow) direction (1), first-stage reverse osmosis membrane module (3), two-pass reverse osmosis membrane module (4) and purging system, it is characterised in that:The raw water high pressure Active carbon filtering device (2) is set between the port of export of pump (1) and the raw water arrival end of first-stage reverse osmosis membrane module (3), it is described Active carbon filtering device (2) port of export connects the raw water arrival end of first-stage reverse osmosis membrane module (3) all the way, and another way is anti-through one-level Rinse return valve (23) and connect the purging system;The water outlet of the first-stage reverse osmosis membrane module (3) is through one-level production water row Put valve (5,6) the connection production mouth of a river;The concentrated water outlet of the first-stage reverse osmosis membrane module (3) is divided into through one-level backwash valve (7,8) Two-way, one-level concentrated water discharge valve (10) is connected all the way, in addition all the way by two-pass reverse osmosis original water inlet valve (9) connection described two The raw water entrance of level reverse osmosis membrane assembly (4);The water outlet of the two-pass reverse osmosis membrane module (4) produces water discharging valve through two level (11) the connection production mouth of a river;The concentrated water outlet of the two-pass reverse osmosis membrane module (4) is divided into two-way, connects two level concentrated water discharge all the way Valve (13), connect the purging system through two level backwash valve (12) all the way in addition;The purging system includes concentration of lotion Detection means (20), the water side of the concentration of lotion detection means (20) are divided into two-way, recoiled respectively by one-level all the way Wash valve (7,8) to connect with the outlet of first-stage reverse osmosis membrane module (3) concentrated water, another way is anti-by two level backwash valve (12) and two level Permeable membrane element (4) concentrated water outlet connection;Ultraviolet sterilization apparatus (14) is set at the production mouth of a river.
2. it is according to claim 1 can online backwashing reverse osmosis water treatment system, it is characterised in that:The cleaning system System also includes the cleaning water tank (15), flushing water pump (18) and cleaning filter (19) being sequentially connected along water (flow) direction, described clear It is connected between water tank (15) and flushing water pump (18) and flushing water pump water intaking valve (17) is set, described cleaning water tank (15) bottom connects Connect and clear water water tank drain valve (16) is set.
3. it is according to claim 2 can online backwashing reverse osmosis water treatment system, it is characterised in that:The two level is anti- Permeating between original water inlet valve (9) and two-pass reverse osmosis membrane module (4) sets two level to backwash return valve (25), and the two level is anti- Return valve (25) is rinsed to be connected with the cleaning water tank (15).
4. it is according to claim 2 can online backwashing reverse osmosis water treatment system, it is characterised in that:It is described to clean Filter (19) is provided with backwash valve, and the backwash valve upper end offers backwash valve body port, the backwash valve body port Place is sequentially arranged with backwash valve element, backwash valve sealing ring, backwash valve body top cover and backwash knob.
5. according to any one in claim 1-4 can online backwashing reverse osmosis water treatment system, its feature exists In:The first-stage reverse osmosis membrane module (3) is made up of more than one group of reverse osmosis membrane assembly parallel connection.
6. it is according to claim 5 can online backwashing reverse osmosis water treatment system, it is characterised in that:The one-level is anti- It is 2 that permeable membrane element (3), which organizes number and organizes the ratio between number with two-pass reverse osmosis membrane module (4),:1.
7. according to any one in claim 6 can online backwashing reverse osmosis water treatment system, it is characterised in that: The water side of the concentration of lotion detection means (20) is divided into two-way, all the way between delivery port and one-level backwash valve (7,8) Set one-level to clean water valve (22), set two level to clean water valve (21) between another way delivery port and two level backwash valve (12); Septum valve (24) is set between the active carbon filtering device (2) and first-stage reverse osmosis membrane module (3) raw water entrance.
CN201711217974.5A 2017-11-28 2017-11-28 Can online backwashing reverse osmosis water treatment system Pending CN107879524A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN107879524A true CN107879524A (en) 2018-04-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108554180A (en) * 2018-04-25 2018-09-21 张家港市金马星机械制造有限公司 Increase the system in reverse osmosis membrane service life
CN111453868A (en) * 2020-04-29 2020-07-28 曾祥奎 CIP (cleaning in place) process for deep purification and filtration of drinking water by using membrane core
CN113396130A (en) * 2019-09-04 2021-09-14 奥加诺株式会社 Water treatment system and water treatment method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108554180A (en) * 2018-04-25 2018-09-21 张家港市金马星机械制造有限公司 Increase the system in reverse osmosis membrane service life
CN113396130A (en) * 2019-09-04 2021-09-14 奥加诺株式会社 Water treatment system and water treatment method
CN111453868A (en) * 2020-04-29 2020-07-28 曾祥奎 CIP (cleaning in place) process for deep purification and filtration of drinking water by using membrane core
CN111453868B (en) * 2020-04-29 2022-02-25 曾祥奎 CIP (cleaning in place) process for deep purification and filtration of drinking water by using membrane core

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