CN207699381U - 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
CN207699381U
CN207699381U CN201721620781.XU CN201721620781U CN207699381U CN 207699381 U CN207699381 U CN 207699381U CN 201721620781 U CN201721620781 U CN 201721620781U CN 207699381 U CN207699381 U CN 207699381U
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water
reverse osmosis
valve
osmosis membrane
level
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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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Abstract

The utility model discloses it is a kind of can online backwashing reverse osmosis water treatment system, including along the sequentially connected raw water high-pressure pump of water (flow) direction, active carbon filtering device, first-stage reverse osmosis membrane module, two-pass reverse osmosis membrane module and cleaning system, raw water high-pressure pump cleaning system includes concentration of lotion detection device, the water outlet of concentration of lotion detection device is divided into two-way, it exports and connects with first-stage reverse osmosis membrane module concentrated water all the way, another way is connected with the outlet of two-pass reverse osmosis membrane module concentrated water;It produces and ultraviolet sterilization apparatus is set at the mouth of a river.The utility model is realized and is rinsed to first-stage reverse osmosis membrane module, two-pass reverse osmosis membrane module using raw water as ejected wash water by the switching of water pipes at different levels and control valve, supports gradually to carry out online back flush to reverse osmosis membrane assemblies at different levels.

Description

Can online backwashing reverse osmosis water treatment system
Technical field
The utility model is related to reverse osmosis water treatment system technical fields, more particularly to a kind of clear using counter-infiltration system Cleaning device realize can online backwashing reverse osmosis water treatment system.
Background technology
Reverse osmosis technology is now widely used for water treatment field, and operation principle is to utilize film using pressure difference as power 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 forms precipitation and is attached to reverse osmosis membrane surface or is jammed in reverse osmosis membrane fenestra, causes reverse osmosis membrane to pollute, under performance Drop.Due to the difference of influent quality, the substance that pollutes reverse osmosis membrane include hydrated metal oxide, carbonate, Sulfates, Silicic acid class, organic species, microbiology class etc..
Reverse-osmosis membrane element can restore major part or partial properties, then clean no longer after the cleaning by chemistry It is effective, in the case that requirement is not achieved in function, it is necessary to replace reverse osmosis membrane.Current reverse osmosis membrane generally 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 carries out back flush to reverse-osmosis membrane element offline, and time-consuming and laborious, installation is also inconvenient.But forward direction cleaning is easy Front membrane component is caused to pollute shifts backward, cleaning is not thorough so that the cleaning of reverse osmosis membrane becomes more frequent, leads to running cost Increase, the increase of cleaning charge, reverse-osmosis membrane element service life reduction.
Utility model content
In order to overcome the shortcomings of above-mentioned existing counter-infiltration system technology, the utility model offer is a kind of to utilize counter-infiltration system Cleaning device realizes the technical solution of the counter-infiltration system of online backwashing, and it is online anti-that which supports that reverse osmosis membrane assembly carries out To flushing.A kind of technical solution that in order to achieve the above object, the utility model provides:
It is a kind of can online backwashing reverse osmosis water treatment system, including along the sequentially connected raw water high-pressure pump of water (flow) direction (1), first-stage reverse osmosis membrane module (3), two-pass reverse osmosis membrane module (4) and cleaning system, the outlet of the raw water high-pressure pump (1) Setting active carbon filtering device (2) between end and the raw water inlet end of first-stage reverse osmosis membrane module (3), the activated carbon filtering dress The raw water inlet end that (2) outlet end connects first-stage reverse osmosis membrane module (3) all the way is set, another way backwashes return valve through level-one (23) cleaning system is connected;The water outlet of the first-stage reverse osmosis membrane module (3) connects through level-one production water discharging valve (5,6) It practices midwifery the mouth of a river;The concentrated water of the first-stage reverse osmosis membrane module (3) is exported is divided into two-way through level-one backwash valve (7,8), connects all the way Level-one concentrated water discharge valve (10) is connect, in addition passes through two-pass reverse osmosis original water inlet valve (9) all the way and connects the two-pass reverse osmosis film The raw water inlet of component (4);The water outlet of the two-pass reverse osmosis membrane module (4) connects production through two level production water discharging valve (11) 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 Outside the cleaning system is connected through two level backwash valve (12) all the way;The cleaning system includes concentration of lotion detection device (20), the water outlet of the concentration of lotion detection device (20) is divided into two-way, passes through level-one backwash valve (7,8) respectively all the way It exports and connects 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 cleaning system further includes along the sequentially connected cleaning water tank (15) of water (flow) direction, flushing water pump (18) and filter (19) is cleaned, connection setting flushing water pump inlet valve between the cleaning water tank (15) and flushing water pump (18) (17), cleaning water tank (15) the bottom connection setting 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) connect with the cleaning water tank (15).
Further, the cleaning filter (19) is equipped with backwash valve, and the backwash valve upper end offers backwash Valve body port is sequentially arranged with backwash spool, backwash valve sealing ring, recoil at the backwash valve body port Wash valve body head cover and backwash knob.A backwash valve is increased on conventional fore filter, solves impurity attachment The problem of can not be rinsed well on strainer, the demounting procedure of cleaning filter is reduced, it is user-friendly.
Preferably, the first-stage reverse osmosis membrane module (3) is made of one group or more of reverse osmosis membrane assembly parallel connection.
Preferably, the ratio between first-stage reverse osmosis membrane module (3) the group number and two-pass reverse osmosis membrane module (4) group number are 2:1.
Further, the water outlet of the concentration of lotion detection device (20) is divided into two-way, all the way water outlet and level-one Level-one is set between backwash valve (7,8) and cleans water valve (22), is arranged between another way water outlet and two level backwash valve (12) Two level cleans water valve (21);It is arranged between the active carbon filtering device (2) and first-stage reverse osmosis membrane module (3) raw water inlet high Press regulating valve (24).
The utility model 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 ejected wash water to first-stage reverse osmosis membrane module, Two-pass reverse osmosis membrane module is rinsed, and supports gradually to carry out online back flush to reverse osmosis membrane assemblies at different levels, to improve The adaptability to various water quality of reverse osmosis unit, carries out with and to reverse osmosis membrane assembly to reduce systematic running cost Cost is backwashed, there is apparent economic benefit and environmental benefit in practical applications.
2. the online backwashing of reverse osmosis membrane assemblies at different levels can with simple economy be realized, original system need not be made Prodigious variation, cost is also very low, and the online backwashing technology can generally extend the service life 1/ of reverse osmosis membrane 3, while running simple to operate, using automatic valve, realizes and shut down automatic backwash.
3. cleaning system forms circulation flushing, ejected wash water with first-stage reverse osmosis membrane module and two-pass reverse osmosis membrane module respectively Pass through the ejected wash water that the cleaning solution that first-stage reverse osmosis membrane module and two-pass reverse osmosis membrane module flow out flows back to cleaning system again respectively Case;In addition, cleaning system by be arranged concentration of lotion detection device to enter reverse osmosis membrane assembly in cleaning solution concentration into Row measure, whether injected to control cleaning solution, whether clean water is replaced or flushing operation complete, can be effectively by reverse osmosis membrane The obstinate object for being difficult to clear up in component is cleaned, and is ensured the clean-up performance of reverse osmosis membrane assembly, is prolonged the service life, and production is improved Water.
4. being equipped with active carbon filtering device before reverse osmosis membrane assembly device, the larger pollution of particle can be effectively filtered Object effectively extends the service life of film in reverse-osmosis filtering device, reduces 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.
It is equipped with ultraviolet sterilization apparatus at the mouth of a river 5. producing, further sterilization is made to water purification, ensures water purification quality.
Description of the drawings
Fig. 1 be the utility model can online backwashing reverse osmosis water treatment system structural schematic diagram
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- level-ones production water discharging valve, 6- level-ones production water discharging valve, 7- level-ones backwash valve, 8- level-ones backwash valve, 9- two-pass reverse osmosis original water inlets valve, 10- level-one 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 inlet valve, 18- flushing water pumps, 19- cleanings filter, 20- concentration of lotion detection device, 21- two levels are clear Wash water valve, 22- level-ones cleaning water valve, 23- level-ones backwash return valve, 24- septum valves, 25- two levels backwash back Flow valve
Specific implementation mode
Presently in connection with attached drawing it is a kind of to the utility model embodiment can online backwashing reverse osmosis water treatment system make Further instruction, it is as shown in Figure 1 can online backwashing reverse osmosis water treatment system structural schematic diagram.
It is a kind of can online backwashing reverse osmosis water treatment system, including along the sequentially connected raw water high-pressure pump of water (flow) direction 1, first-stage reverse osmosis membrane module 3, two-pass reverse osmosis membrane module 4 and cleaning system, outlet end and the level-one reverse osmosis of raw water high-pressure pump 1 Active carbon filtering device 2 is set between the raw water inlet end of permeable membrane component 3, and 2 outlet end of active carbon filtering device connects one all the way The raw water inlet end of grade reverse osmosis membrane assembly 3, wherein active carbon filtering device 2 and 3 raw water inlet of first-stage reverse osmosis membrane module it Between be arranged septum valve 24, another way through level-one backwash return valve 23 connect cleaning system;First-stage reverse osmosis membrane module 3 Water outlet is through level-one production water discharging valve 5, the level-one production connection production of water discharging valve 6 mouth of a river;The concentrated water of first-stage reverse osmosis membrane module 3 goes out Mouthful divide for two-way through level-one backwash valve 7, level-one backwash valve 8, connects level-one concentrated water discharge valve 10 all the way, in addition pass through all the way Two-pass reverse osmosis original water inlet valve 9 connects the raw water inlet 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 In addition two level concentrated water discharge valve 13 connects cleaning system through two level backwash valve 12 all the way;Cleaning system further includes along flow side To sequentially connected cleaning water tank 15, flushing water pump 18, cleaning filter 19 and concentration of lotion detection device 20, water tank is cleaned Connection setting flushing water pump inlet valve 17 between 15 and flushing water pump 18,15 bottom of cleaning water tank connection setting clear water water tank discharge Valve 16;It cleans filter 19 and is equipped with backwash valve, backwash valve upper end offers backwash valve body port, backwashes valve body port Place is sequentially arranged with backwash spool, backwash valve sealing ring, backwash valve body head cover and backwash knob;Cleaning The water outlet of liquid concentration detection apparatus 20 is divided into two-way, passes through level-one backwash valve 7, level-one backwash valve 8 and one respectively all the way The outlet connection of grade 3 concentrated water of reverse osmosis membrane assembly, and be arranged between water outlet and level-one backwash valve 7, level-one backwash valve 8 Level-one cleans water valve 22, and another way is connected by two level backwash valve 12 and the outlet of 4 concentrated water of two-pass reverse osmosis membrane module, and Two level is set between water outlet and two level backwash valve 12 and cleans water valve 21;It produces and ultraviolet sterilization apparatus 14 is set at the mouth of a river.
First-stage reverse osmosis membrane module 3 is made of one group or more of reverse osmosis membrane assembly parallel connection, in conjunction with attached drawing 1, the present embodiment First-stage reverse osmosis membrane module 3 is made 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 parallel connection constitute, selected according to the water quality situation of processing.
The ratio between 3 groups of numbers of first-stage reverse osmosis membrane module and 4 groups of numbers of two-pass reverse osmosis membrane module are 2:1, in conjunction with attached drawing 1, this reality It is 1 group to apply two-pass reverse osmosis membrane module quantity;When first-stage reverse osmosis membrane module 3 is made of 4 groups of reverse osmosis membrane assembly parallel connections, Two-pass reverse osmosis membrane module quantity is 2 groups, and so on.
The course of work:When reverse osmosis water treatment system operation production water, open raw water high-pressure pump 1, active carbon filtering device 2, Septum valve 24, level-one production water discharging valve 5, level-one production water discharging valve 6, level-one backwash valve 7, level-one backwash valve 8, two level Reverse osmosis original water inlet valve 9, two level production water discharging valve 11, two level concentrated water discharge valve 13, ultraviolet sterilization apparatus 14, close level-one Other all valves such as concentrated water discharge valve 10, two level backwash valve 12 and level-one 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 pass through level-one production water discharging valve 5, level-one production Water discharging valve 6 uses after 14 sterilization processing of ultraviolet sterilization apparatus as final process water quality, concentrated water from concentrated water export into Enter to be further divided into water outlet and concentrated water outlet two-way outlet after two-pass reverse osmosis membrane module is further processed, fresh water is from water outlet By two level production water discharging valve 11 used as final process water quality after 14 sterilization processing of ultraviolet sterilization apparatus, concentrated water from It is 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, it is reverse osmosis from attached drawing 1 to be seen as top Membrane module opens raw water high-pressure pump 1, active carbon filtering device 2, level-one and backwashes return valve 23, closes other all valves, high Pressure raw water enters cleaning water tank 15, after waiting cleaning water tank 15 to fill ejected wash water, closes raw water high-pressure pump 1 and level-one backwashes back Flow valve 23;Start cleaning system, starts flushing water pump 18, flushing water pump inlet valve 17, level-one cleaning water valve 22, level-one backwash Valve 7, septum valve 24 and level-one backwash return valve 23, close other all valves, ejected wash water is through over cleaning filter 19 With concentration of lotion detection device 20, cycle 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 device 20 measures cleaning solution concentration, whether injected to control cleaning solution, ejected wash water whether more It changes or flushing operation is completed, ejected wash water needs replacing, and opens clear water water tank drain valve 16 and discharges ejected wash water, again to ejected wash 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, it is reverse osmosis from attached drawing 1 to be seen as lower part Membrane module starts flushing water pump 18, flushing water pump inlet valve 17, level-one cleaning water valve 22, level-one backwash valve 8, high voltage adjusting Valve 24 and level-one backwash return valve 23, close other all valves, ejected wash water is through over cleaning filter 19 and concentration of lotion Detection device 20 carries out cycle backwash, concentration of lotion inspection to the 2nd group of reverse osmosis membrane assembly in first-stage reverse osmosis membrane module 3 It surveys device 20 to measure cleaning solution concentration, whether be injected to control cleaning solution, whether ejected wash water replaces or flushing operation It completes, ejected wash water needs replacing, and opens clear water water tank drain valve 16 and discharges ejected wash water, 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 inlet valve 17, two level ejected wash water Valve 21, two level backwash valve 12 and two level backwash return valve 25, close other all valves, ejected wash water is through over cleaning filter 19 and concentration of lotion detection device 20, cycle backwash, concentration of lotion detection device are carried out to two-pass reverse osmosis membrane module 4 20 pairs of cleaning solution concentration measure, whether injected to control cleaning solution, whether ejected wash water is replaced or flushing operation complete, clearly Wash water needs replacing, and opens clear water water tank drain valve 16 and discharges ejected wash water, carries out raw water injection to cleaning water tank 15 again.
As the deformation of the present embodiment, ejected wash water can also be connect with pipeline by fresh water Water filling valve is newly increased at the production mouth of a river Case 15, using processed fresh water as the ejected wash water of cleaning system.
Embodiment of above is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with this skill The people of art understands the content of the utility model and is implemented, and can not limit the scope of protection of the utility model with this, all According to the equivalent change or modification that the spirit of the present invention is substantially done, should all cover within the protection scope of the present utility model.

Claims (7)

1. it is a kind of can online backwashing reverse osmosis water treatment system, including along the sequentially connected raw water high-pressure pump of water (flow) direction (1), first-stage reverse osmosis membrane module (3), two-pass reverse osmosis membrane module (4) and cleaning system, it is characterised in that:The raw water high pressure Setting active carbon filtering device (2), described between the outlet end and the raw water inlet end of first-stage reverse osmosis membrane module (3) of pump (1) Active carbon filtering device (2) outlet end connects the raw water inlet end of first-stage reverse osmosis membrane module (3) all the way, and another way is anti-through level-one It rinses return valve (23) and connects the cleaning system;The water outlet of the first-stage reverse osmosis membrane module (3) is through level-one 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 level-one backwash valve (7,8) Two-way connects level-one concentrated water discharge valve (10) all the way, in addition passes through two-pass reverse osmosis original water inlet valve (9) all the way and connects described two The raw water inlet of grade 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) in addition connects the cleaning system through two level backwash valve (12) all the way;The cleaning system includes concentration of lotion The water outlet of detection device (20), the concentration of lotion detection device (20) is divided into two-way, is recoiled respectively by level-one all the way It washes 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 further includes along the sequentially connected cleaning water tank (15) of water (flow) direction, flushing water pump (18) and cleaning filter (19), described clear Connection setting flushing water pump inlet valve (17) between water tank (15) and flushing water pump (18), cleaning water tank (15) bottom connect Connect setting clear water water tank drain valve (16).
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- It permeates setting two level between original water inlet valve (9) and two-pass reverse osmosis membrane module (4) and backwashes return valve (25), the two level is anti- Return valve (25) is rinsed to connect 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 equipped 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 spool, backwash valve sealing ring, backwash valve body head cover and backwash knob.
5. according to any one of claim 1-4 can online backwashing reverse osmosis water treatment system, feature exists In:The first-stage reverse osmosis membrane module (3) is made of one group or more 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 level-one is anti- It is 2 that permeable membrane element (3), which organizes the ratio between number and two-pass reverse osmosis membrane module (4) group number,:1.
7. according to described in claim 6 can online backwashing reverse osmosis water treatment system, it is characterised in that:The cleaning The water outlet of liquid concentration detection apparatus (20) is divided into two-way, and level-one is arranged between water outlet and level-one backwash valve (7,8) all the way Water valve (22) is cleaned, two level is set between another way water outlet and two level backwash valve (12) and cleans water valve (21);The activity Septum valve (24) is set between charcoal filter device (2) and first-stage reverse osmosis membrane module (3) raw water inlet.
CN201721620781.XU 2017-11-28 2017-11-28 Can online backwashing reverse osmosis water treatment system Active CN207699381U (en)

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Application Number Priority Date Filing Date Title
CN201721620781.XU CN207699381U (en) 2017-11-28 2017-11-28 Can online backwashing reverse osmosis water treatment system

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Application Number Priority Date Filing Date Title
CN201721620781.XU CN207699381U (en) 2017-11-28 2017-11-28 Can online backwashing reverse osmosis water treatment system

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Publication Number Publication Date
CN207699381U true CN207699381U (en) 2018-08-07

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