CN110510767A - A kind of multi-section circulation formula rolled film super-pressure counter-infiltration system and control method - Google Patents

A kind of multi-section circulation formula rolled film super-pressure counter-infiltration system and control method Download PDF

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Publication number
CN110510767A
CN110510767A CN201910925050.3A CN201910925050A CN110510767A CN 110510767 A CN110510767 A CN 110510767A CN 201910925050 A CN201910925050 A CN 201910925050A CN 110510767 A CN110510767 A CN 110510767A
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China
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water
rolling
concentrated water
circulation
water inlet
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CN201910925050.3A
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Inventor
崔德圣
邵松
李宏秀
彭彤宇
刘进
刘润华
闫彩霞
张士明
杨如洪
韩文荃
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HUADIAN WATER ENGINEERING Co Ltd
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HUADIAN WATER ENGINEERING Co Ltd
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Priority to CN201910925050.3A priority Critical patent/CN110510767A/en
Publication of CN110510767A publication Critical patent/CN110510767A/en
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    • 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
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F2301/04Flow arrangements

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Subject description discloses a kind of multi-section circulation formula rolled film super-pressure counter-infiltration systems, also disclose a kind of control method of multi-section circulation formula rolled film super-pressure counter-infiltration system.For the system, wherein filter is set on water inlet supervisor, and the side for high-pressure pump of intaking is connected with into water and is responsible for, and the other side for high-pressure pump of intaking is connected with concentrated water main pipe, and the side far from water inlet high-pressure pump is equipped with Serve Motor Control valve in concentrated water main pipe;The concentrated water main pipe wherein intake between high-pressure pump and Serve Motor Control valve is communicated with cross-flow filtration system, and the other side of cross-flow filtration system is also connected to production water supervisor;Cross-flow filtration system includes several be arranged side by side the first rolling membranous system and second rolling membranous systems, several the first rolling membranous systems are placed in the front side of the second rolling membranous system.The system footprint area is smaller, and the control method of the system improves fresh-water recovery rate.

Description

A kind of multi-section circulation formula rolled film super-pressure counter-infiltration system and control method
Technical field
This specification is related to high-salt wastewater concentration field, and in particular to a kind of multi-section circulation formula rolled film super-pressure is anti- Osmosis system and control method.
Background technique
In high-salt wastewater concentration field, sea-water reverse osmose membranous system or disc tube reverse osmosis (dt-ro) system is mostly used to handle useless Water.The problem is that: disc tube reverse osmosis (dt-ro) system footprint area is big, and fresh-water recovery rate is lower, and cost is higher.Sea-water reverse osmose Membranous system fresh-water recovery rate is lower, no cross-flow circulating filtration measure, be easy to cause film surface dirt stifled.
Summary of the invention
This specification embodiment provides a kind of multi-section circulation formula rolled film super-pressure counter-infiltration system and control method, with portion The solution above problem of the existing technology divided.
This specification embodiment adopts the following technical solutions:
A kind of multi-section circulation formula rolled film super-pressure counter-infiltration system that this specification provides, comprising: filter, water inlet are high Press pump, water inlet supervisor, concentrated water main pipe, cross-flow filtration system, produces water supervisor at Serve Motor Control valve, specifically, filter can be adopted Use cartridge filter.Wherein filter is set on water inlet supervisor, and the side for high-pressure pump of intaking is connected with into water and is responsible for, and needs to handle Influent waste water by water inlet supervisor enter this system in.The other side of water inlet high-pressure pump is connected with concentrated water main pipe, and water inlet enters It is discharged after handling and being flowed by concentrated water main pipe after this system, far from the side installation of water inlet high-pressure pump in the concentrated water main pipe There is Serve Motor Control valve.The concentrated water main pipe wherein intake between high-pressure pump and Serve Motor Control valve is communicated with cross-flow filtration system System, the other side of the cross-flow filtration system are also connected to production water supervisor;By cross-flow filtration system treated produce water pass through Produce water supervisor's discharge.The cross-flow filtration system includes several be arranged side by side the first rolling membranous system and second rolling membrane systems System, several described the first rolling membranous systems are placed in the front side of the second rolling membranous system.
Optionally, the first rolling membranous system includes sequentially connected circulation water inlet pipe, the first rolled membrane module, circulation Outlet pipe, the first rolling membranous system further include concentrated water recycling booster pump, produce water branch pipe, and wherein concentrated water recycles setting for booster pump Set the cross-flow circulating filtration that can be realized greater than system flow of inlet water.Wherein circulation water inlet pipe far from the first rolled membrane module one End is connected to concentrated water main pipe, and the one end of recycling outlet far from the first rolled membrane module is also connected to concentrated water main pipe;Concentrated water is followed again Ring booster pump is set in circulation water inlet pipe, and the one end for producing water branch pipe is connect with the first rolled membrane module, produces the other end of water branch pipe It is connected to water supervisor is produced.
Optionally, the second rolling membranous system includes sequentially connected circulation water inlet pipe, the second rolled membrane module, circulation Outlet pipe, the second rolling membranous system further include concentrated water recycling booster pump, produce water branch pipe, and wherein circulation water inlet pipe is far from volume Two One end of formula membrane module is connected to concentrated water main pipe, and the one end of recycling outlet far from the second rolled membrane module also connects with concentrated water main pipe It is logical;Concentrated water recycles booster pump and is set in circulation water inlet pipe, and the one end for producing water branch pipe is connect with the second rolled membrane module, produces water branch The other end of pipe is connected to water supervisor is produced.
Optionally, first rolled membrane module includes several first coiled reverse osmosis membrane elements being connected in series, string The water inlet of first first coiled reverse osmosis membrane element for joining connection is connect with circulation water inlet pipe, series connection it is last The concentrated water discharge mouth of one first coiled reverse osmosis membrane element is connect with recycling outlet, each of series connection described The production mouth of a river of one coiled reverse osmosis membrane element is connect with production water branch pipe.This system is using coiled reverse osmosis membrane element as core Processing component realizes super-pressure osmosis filtration, and this system highest operating pressure is enabled to reach 120bar.
Optionally, second rolled membrane module includes several second coiled reverse osmosis membrane elements being connected in series, string The water inlet of first second coiled reverse osmosis membrane element for joining connection is connect with circulation water inlet pipe, series connection it is last The concentrated water discharge mouth of one second coiled reverse osmosis membrane element is connect with recycling outlet, each of series connection described The production mouth of a river of two coiled reverse osmosis membrane elements is connect with production water branch pipe.This system is using coiled reverse osmosis membrane element as core Processing component realizes super-pressure osmosis filtration, and this system highest operating pressure is enabled to reach 120bar.
Optionally, multi-section circulation formula rolled film super-pressure counter-infiltration system further includes control system, water inlet conductivity detection Instrument, flow of inlet water sensor, concentrated water flow sensor, specifically, control system can be PLC system.The water inlet conductivity Detector, flow of inlet water sensor, concentrated water flow sensor, water inlet high-pressure pump, concentrated water recycle booster pump, Serve Motor Control Valve is electrically connected at control system.Electric conductivity detector, flow of inlet water sensor wherein intake on water inlet supervisor, concentrated water Flow sensor is in the concentrated water main pipe after Serve Motor Control valve.Specifically, water inlet electric conductivity detector for measure into The conductivity of water, flow of inlet water sensor are used to measure the flow of water inlet, and concentrated water flow sensor is used to measure the flow of concentrated water, And the conductivity measured and flow information are sent to control system, after control system handles information analysis, issue control letter Number feed high-pressure water pump, concentrated water recycle booster pump, Serve Motor Control valve, and then control water inlet high-pressure pump, concentrated water recycling The aperture of booster pump, Serve Motor Control valve.Wherein, the aperture of Serve Motor Control valve is according to flow of inlet water, concentrated water water tune Section, it is therefore an objective to adjust the whole fresh-water recovery rate of this system.
Optionally, the quantity of the first rolling membranous system is two or three, the quantity of the second rolling membranous system It is one;The quantity of first coiled reverse osmosis membrane element is five or six.
Optionally, the quantity of the first rolling membranous system is two or three, the quantity of the second rolling membranous system It is one;The quantity of second coiled reverse osmosis membrane element is five or six.
A kind of control method for multi-section circulation formula rolled film super-pressure counter-infiltration system that this specification provides, use are aforementioned Multi-section circulation formula rolled film super-pressure counter-infiltration system, including following procedure:
The first rolling membranous system that several are arranged side by side is named as one section of first rolling according to sequence from front to back Membranous system, two section of first rolling membranous system, and so on;
Firstly, control system, which closes concentrated water, recycles booster pump, water inlet high-pressure pump and Serve Motor Control valve are opened;
Influent waste water first enters filter through water inlet supervisor and removes impurity, subsequently into water inlet high-pressure pump pressurization, after pressurization Water inlet flow into concentrated water main pipe in, then go out through Serve Motor Control valve regulation concentrated water displacement heel row;
After high-pressure pump of intaking opens 60s~100s, the concentrated water that control system is opened in one section of first rolling membranous system is followed again Ring booster pump, one section of first rolling membranous system forms cross-flow circulation at this time;
About the cross-flow circulation of one section of first rolling membranous system, specifically include: through pressurized a part of high-pressure pump of intaking Water inlet flows into the circulation water inlet pipe of one section of first rolling membranous system, enters first after concentrated water recycling booster pump continues pressurization It is filtered in rolled membrane module, filtered production water is produced water branch pipe and is flowed into production water supervisor's discharge, and filtered concentrated water is through recycling Outlet pipe is flowed into concentrated water main pipe;For filtered concentrated water, a part flows backward along concentrated water main pipe, and another part exists Move in circles flowing in one section of first rolling membranous system;
After concentrated water recycling booster pump in one section of first rolling membranous system opens 60s~100s, control system opens two In the first rolling membranous system of section, two section of first rolling membranous system forms cross-flow circulation at this time, the process of cross-flow circulation with one section First rolling membranous system is identical;
The cross-flow cyclic process of remaining several sections of the first rolling membranous system and so on;
Then, control system opens the concentrated water in the second rolling membranous system and recycles booster pump, at this time the second rolling membrane system System forms cross-flow circulation, and the cross-flow cyclic process of the second rolling membranous system specifically includes: several the first rollings being arranged side by side Membranous system cross-flow circulation after concentrated water summarize by concentrated water main pipe after, a part of concentrated water into the second rolling membranous system circulation into In water pipe, enters in volume Two formula membrane module after concentrated water recycling booster pump continues pressurization and filter, filtered production water is through producing Water branch pipe, which is flowed into, produces water supervisor's discharge, and filtered concentrated water is flowed into concentrated water main pipe through recycling outlet;After filtering Concentrated water, a part moves in circles flowing in the second rolling membranous system, and another part flows backward along concentrated water main pipe, through watching It is discharged after taking motor control valve.
Optionally, control method further includes flowing into one section of first rolling through the pressurized a part water inlet of water inlet high-pressure pump In the circulation water inlet pipe of membranous system, through concentrated water recycling booster pump continue pressurization after enter first volume formula membrane module in filter when, Since the first rolled membrane module includes the first coiled reverse osmosis membrane element that several are arranged in juxtaposition, the flows difference such as water inlet Into filtering in several first coiled reverse osmosis membrane elements, filtered production water is produced the convergence of water branch pipe and flows into production water supervisor, Filtered concentrated water is converged through recycling outlet.And so on, two section of first rolling membranous system and subsequent first rolling membrane system System is same filter type.
Optionally, control method further includes the concentrated water after several first rolling membranous system cross-flows being arranged side by side circulation After being summarized by concentrated water main pipe, a part of concentrated water enters in the circulation water inlet pipe of the second rolling membranous system, recycles and increases through concentrated water Press pump enters after continuing pressurization in volume Two formula membrane module when filtering, since the second rolled membrane module includes that several are arranged in juxtaposition The second coiled reverse osmosis membrane element, therefore intake etc. flows respectively enter mistake in several second coiled reverse osmosis membrane elements Filter, filtered production water are produced water branch pipe convergence inflow production water and are responsible for, and filtered concentrated water is converged through recycling outlet.
At least one above-mentioned technical solution that this specification embodiment uses can reach following the utility model has the advantages that this system is set It sets multistage to be arranged side by side the first rolling membranous system and the second rolling membranous system, using coiled reverse osmosis membrane element as core processing Component, every section, using the cross-flow circulating filtration for being greater than system flow of inlet water, improves rolling membranous system contamination resistance, compared to Disc tube reverse osmosis (dt-ro) system, this system occupied area is smaller, and overall cost is low.Using the control method of the system, can be improved Fresh-water recovery rate.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand this specification, forms part of this specification, The illustrative embodiments and their description of this specification do not constitute the improper restriction to this specification for explaining this specification. In the accompanying drawings:
Fig. 1 is a kind of multi-section circulation formula rolled film super-pressure counter-infiltration system that this specification embodiment provides;
The structural schematic diagram of first rolled membrane module in the first rolling membranous system that Fig. 2 provides for this specification embodiment;
The structural schematic diagram of second rolled membrane module in the second rolling membranous system that Fig. 3 provides for this specification embodiment.
The meaning of appended drawing reference: 1- filter, 2- water inlet high-pressure pump, 3- concentrated water recycle booster pump, the first rolled film of 41- System, the first rolled membrane module of 411-, the first coiled reverse osmosis membrane element of 4111-, 42- the second rolling membranous system, 421- second Rolled membrane module, the second coiled reverse osmosis membrane element of 4211-, 5- Serve Motor Control valve, 6- water inlet supervisor, 7- concentrated water main pipe, 8- circulation water inlet pipe, 9- recycling outlet, 10- produce water branch pipe, and 11- produces water supervisor, 12- water inlet electric conductivity detector, 13- water inlet Flow sensor, 14- concentrated water flow sensor.
Specific embodiment
To keep the purposes, technical schemes and advantages of this specification clearer, it is embodied below in conjunction with this specification This specification technical solution is clearly and completely described in example and corresponding attached drawing.Obviously, described embodiment is only this Specification a part of the embodiment, instead of all the embodiments.The embodiment of base in this manual, ordinary skill people Member's every other embodiment obtained without making creative work, belongs to the range of this specification protection.
Below in conjunction with attached drawing, the technical solution that each embodiment of this specification provides is described in detail.
Fig. 1 is a kind of multi-section circulation formula rolled film super-pressure counter-infiltration system that this specification embodiment provides, specific to wrap Include: filter 1, Serve Motor Control valve 5, water inlet supervisor 6, concentrated water main pipe 7, cross-flow filtration system, produces water at water inlet high-pressure pump 2 Supervisor 11, specifically, cartridge filter can be used in filter 1.Wherein filter 1 is set on water inlet supervisor 6, high-pressure pump 2 of intaking Side be connected with into water supervisor 6, influent waste water to be treated by water inlet supervisor 6 enter this system in.Water inlet high-pressure pump 2 The other side be connected with concentrated water main pipe 7, water inlet is discharged after handling and being flowed by concentrated water main pipe 7 after entering this system, described Side far from water inlet high-pressure pump 2 in concentrated water main pipe 7 is equipped with Serve Motor Control valve 5.Wherein water inlet high-pressure pump 2 and servo electricity Concentrated water main pipe 7 between machine control valve 5 is communicated with cross-flow filtration system, the other side of the cross-flow filtration system also with produce water master Pipe 11 is connected to;By cross-flow filtration system treated produce water by produce water supervisor 11 discharge.The cross-flow filtration system includes Several be arranged side by side the first rolling membranous system 41 and second rolling membranous systems 42, several described the first rolling membranous systems 41 are equal It is placed in the front side of the second rolling membranous system 42.Wherein, the pressure limit of water inlet high-pressure pump 2 is 60bar~120bar.
Optionally, the first rolling membranous system 41 includes sequentially connected circulation water inlet pipe 8, the first rolled membrane module 411, recycling outlet 9, the first rolling membranous system 41 further include concentrated water recycling booster pump 3, produce water branch pipe 10, and wherein concentrated water is again The setting of circularly-supercharged pump 3 can be realized the cross-flow circulating filtration greater than system flow of inlet water.Wherein circulation water inlet pipe 8 is far from One end of one rolled membrane module 411 is connected to concentrated water main pipe 7, the one end of recycling outlet 9 far from the first rolled membrane module 411 It is connected to concentrated water main pipe 7;Concentrated water recycles booster pump 3 and is set in circulation water inlet pipe 8, produces one end and the first rolling of water branch pipe 10 Membrane module 411 connects, and the other end for producing water branch pipe 10 is connected to water supervisor 11 is produced.Wherein, the pressure of concentrated water recycling booster pump 3 Range is 5bar~7bar.
Optionally, the second rolling membranous system 42 includes sequentially connected circulation water inlet pipe 8, the second rolled membrane module 421, recycling outlet 9, the second rolling membranous system 42 further include concentrated water recycling booster pump 3, produce water branch pipe 10, wherein recycle into Water pipe 8 is connected to far from one end of the second rolled membrane module 421 with concentrated water main pipe 7, and recycling outlet 9 is far from the second rolled membrane module 421 one end is also connected to concentrated water main pipe 7;Concentrated water recycles booster pump 3 and is set in circulation water inlet pipe 8, produces the one of water branch pipe 10 End is connect with the second rolled membrane module 421, and the other end for producing water branch pipe 10 is connected to water supervisor 11 is produced.Wherein, concentrated water recycles The pressure limit of booster pump 3 is 5bar~7bar.
Optionally, the structure of the first rolled membrane module in the first rolling membranous system that Fig. 2 provides for this specification embodiment Schematic diagram.First rolled membrane module 411 includes the first coiled reverse osmosis membrane element 4111 that several are connected in series, series connection The water inlet of first first coiled reverse osmosis membrane element 4111 of connection is connect with circulation water inlet pipe 8, series connection The concentrated water discharge mouth of the last one first coiled reverse osmosis membrane element 4111 is connect with recycling outlet 9, series connection The production mouth of a river of each first coiled reverse osmosis membrane element 4111 is connect with production water branch pipe 10.This system uses rolling reverse osmosis Membrane element realizes super-pressure osmosis filtration as key process unit, and this system highest operating pressure is reached To 120bar.
Optionally, the structure of the second rolled membrane module in the second rolling membranous system that Fig. 3 provides for this specification embodiment Schematic diagram.Second rolled membrane module 421 includes the second coiled reverse osmosis membrane element 4211 that several are connected in series, series connection The water inlet of first second coiled reverse osmosis membrane element 4211 of connection is connect with circulation water inlet pipe 8, series connection The concentrated water discharge mouth of the last one second coiled reverse osmosis membrane element 4211 is connect with recycling outlet 9, series connection The production mouth of a river of each second coiled reverse osmosis membrane element 4211 is connect with production water branch pipe 10.This system uses rolling reverse osmosis Membrane element realizes super-pressure osmosis filtration as key process unit, and this system highest operating pressure is reached To 120bar.
Optionally, multi-section circulation formula rolled film super-pressure counter-infiltration system further includes control system, water inlet conductivity detection Instrument 12, flow of inlet water sensor 13, concentrated water flow sensor 14, specifically, control system can be PLC system.The water inlet Electric conductivity detector 12, flow of inlet water sensor 13, concentrated water flow sensor 14, water inlet high-pressure pump 2, concentrated water recycle booster pump 3, Serve Motor Control valve 5 is electrically connected at control system.Wherein water inlet electric conductivity detector 12, flow of inlet water sensor 13 On water inlet supervisor 6, concentrated water flow sensor 14 is in the concentrated water main pipe 7 after Serve Motor Control valve 5.Specifically, into Water conductivity detector 12 is used to measure the conductivity of water inlet, and flow of inlet water sensor 13 is used to measure the flow of water inlet, concentrated water Flow sensor 14 is used to measure the flow of concentrated water, and the conductivity measured and flow information are sent to control system, controls After system handles information analysis, control signal feed high-pressure water pump 2 is issued, concentrated water recycles booster pump 3, Serve Motor Control Valve 5, and then control the aperture of water inlet high-pressure pump 2, concentrated water recycling booster pump 3, Serve Motor Control valve 5.Wherein, servo motor The aperture of control valve 5 is according to flow of inlet water, concentrated water runoff investigation, it is therefore an objective to adjust the whole fresh-water recovery rate of this system.Fresh water The rate of recovery can be inputted a definite value by staff on host computer, and such as 70%, at this moment Serve Motor Control valve 5 will be adjusted automatically Save corresponding aperture.
Further, in practical application, the multi-section circulation formula rolled film super-pressure counter-infiltration system further include into Water PH detector, inflow temperature sensor, intake pressure transmitter, concentrated water electric conductivity detector, concentrated water PH detector, concentrated water temperature Sensor, concentrated water pressure transmitter are spent, water flow sensor is produced, produces water conductivity detector, producing hydraulic pressure power transmitter, it is above-mentioned Detector, sensor, transmitter etc. are electrically connected at control system.Wherein, intake PH detector, inflow temperature sensor, Intake pressure transmitter is set on water inlet supervisor 6, concentrated water electric conductivity detector, concentrated water PH detector, concentrated water temperature sensor, dense Hydraulic pressure power transmitter produces water flow sensor, produces water conductivity detection in the concentrated water main pipe 7 after Serve Motor Control valve 5 Instrument produces hydraulic pressure power transmitter on production water supervisor 11.
Optionally, the quantity of the first rolling membranous system 41 is two or three, the second rolling membranous system 42 Quantity is one;The quantity of first coiled reverse osmosis membrane element 4111 is five or six.Specifically, each first rolling The quantity of the first coiled reverse osmosis membrane element 4111 contained in membranous system 41 is identical, is five or six, wherein rolling reverse osmosis The pressure rating of membrane element is 90bar or is 120bar, so that the ensemble average of the first rolling membranous system 41 produces water and leads to Amount≤16L/m2/h。
Optionally, the quantity of the first rolling membranous system 41 is two or three, the second rolling membranous system 42 Quantity is one;The quantity of second coiled reverse osmosis membrane element 4211 is five or six.Specifically, each second rolling The quantity of the second coiled reverse osmosis membrane element 4211 contained in membranous system 42 is identical, is five or six, wherein rolling reverse osmosis The pressure rating of membrane element is 90bar or is 120bar, so that the average permeant flux of the second rolling membranous system 42≤ 5L/m2/h。
To sum up, this system setting multistage is arranged side by side the first rolling membranous system and the second rolling membranous system, anti-using rolling For permeable membrane device as key process unit, every section, using the cross-flow circulating filtration for being greater than system flow of inlet water, improves rolling Membranous system contamination resistance, compared to disc tube reverse osmosis (dt-ro) system, this system occupied area is smaller, and overall cost is low.Using this The control method of system, can be improved fresh-water recovery rate.Specifically, compared to disc tube reverse osmosis (dt-ro) system, the reverse osmosis system of rolling The advantage of system is that big (structure type of disc tube reverse osmosis (dt-ro) membrane component is to assemble one by one to the membrane area of single branch membrane component , structure type determines that disc tube reverse osmosis (dt-ro) membrane component list branch membrane area is not too large), therefore handling identical water When, rolling counter-infiltration system fewer than the number with disc tube reverse osmosis (dt-ro) membrane component with the number of coiled reverse osmosis membrane element Group frame is much smaller than disc tube reverse osmosis (dt-ro) system group frame, and occupied area is small, cost of saving the area;In addition identical water is being handled When amount, coiled reverse osmosis membrane system cost is also more much lower than disc tube reverse osmosis (dt-ro) system.
A kind of control method for multi-section circulation formula rolled film super-pressure counter-infiltration system that this specification provides, use are aforementioned Multi-section circulation formula rolled film super-pressure counter-infiltration system, including following procedure:
The first rolling membranous system 41 that several are arranged side by side is named as one section of first volume according to sequence from front to back Formula membranous system, two section of first rolling membranous system, and so on;
Firstly, control system, which closes concentrated water, recycles booster pump 3, water inlet high-pressure pump 2 and Serve Motor Control valve 5 are opened;
Influent waste water first enters filter 1 through water inlet supervisor 6 and removes impurity, is pressurized subsequently into water inlet high-pressure pump 2, pressurization Water inlet afterwards flows into concentrated water main pipe 7, then adjusts concentrated water displacement heel row through Serve Motor Control valve 5 and goes out;
After high-pressure pump 2 of intaking opens 60s~100s, the concentrated water that control system is opened in one section of first rolling membranous system is followed again Ring booster pump 3, one section of first rolling membranous system forms cross-flow circulation at this time;
About the cross-flow circulation of one section of first rolling membranous system, specifically include: through pressurized a part of high-pressure pump 2 of intaking Water inlet flows into the circulation water inlet pipe 8 of one section of first rolling membranous system, enters the after concentrated water recycling booster pump 3 continues pressurization It is filtered in one rolled membrane module 411, filtered production water is produced water branch pipe 10 and is flowed into 11 discharge of production water supervisor, filtered dense Water is flowed into concentrated water main pipe 7 through recycling outlet 9;For filtered concentrated water, a part flows backward along concentrated water main pipe 7 Dynamic, another part moves in circles flowing in one section of first rolling membranous system;
After concentrated water recycling booster pump 3 in one section of first rolling membranous system opens 60s~100s, control system opens two 3 in the first rolling membranous system of section, two section of first rolling membranous system forms cross-flow circulation at this time, the process of cross-flow circulation with one section First rolling membranous system is identical;
The cross-flow cyclic process of remaining several sections of the first rolling membranous system 41 and so on;
Then, control system opens the concentrated water in the second rolling membranous system 42 and recycles booster pump 3, at this time the second rolled film System 42 forms cross-flow circulation, and the cross-flow cyclic process of the second rolling membranous system 42 specifically includes: several be arranged side by side the After concentrated water after one rolling membranous system, 41 cross-flow circulation is summarized by concentrated water main pipe 7, a part of concentrated water enters the second rolling membrane system In the circulation water inlet pipe 8 of system 42, enters in volume Two formula membrane module 421 after concentrated water recycling booster pump 3 continues pressurization and filters, Filtered production water is produced water branch pipe 10 and is flowed into 11 discharge of production water supervisor, and filtered concentrated water is flowed into through recycling outlet 9 In concentrated water main pipe 7;For filtered concentrated water, a part of flowing that moves in circles in the second rolling membranous system 42, another part It flows along concentrated water main pipe 7, is discharged after Serve Motor Control valve 5 backward.
Optionally, control method further includes flowing into one section of first rolling through the pressurized a part water inlet of water inlet high-pressure pump 2 In the circulation water inlet pipe 8 of membranous system, enter mistake in first volume formula membrane module 411 after concentrated water recycling booster pump 3 continues pressurization When filter, since the first rolled membrane module 411 includes the first coiled reverse osmosis membrane element 4111 that several are arranged in juxtaposition, into The flows such as water respectively enter to be filtered in several first coiled reverse osmosis membrane elements 4111, and filtered production water is through producing water branch pipe 10 Convergence, which flows into, produces water supervisor 11, and filtered concentrated water is converged through recycling outlet 9.And so on, two section of first rolling membranous system And subsequent first rolling membranous system is same filter type.
Optionally, control method further includes, dense after several 41 cross-flows of the first rolling membranous system being arranged side by side circulation After water is summarized by concentrated water main pipe 7, a part of concentrated water enters in the circulation water inlet pipe 8 of the second rolling membranous system 42, again through concentrated water Circularly-supercharged pump 3 enters after continuing pressurization in volume Two formula membrane module 421 when filtering, since the second rolled membrane module 421 includes Several the second coiled reverse osmosis membrane elements 4211 being arranged in juxtaposition, therefore the flows such as water inlet respectively enter several the second rollings It is filtered in reverse-osmosis membrane element 4211, filtered production water is produced the convergence of water branch pipe 10 and flows into production water supervisor 11, filtered dense Water is converged through recycling outlet 9.
Certainly, multi-section circulation formula rolled film super-pressure counter-infiltration system and corresponding controlling party are realized using other modes Method, this specification embodiment to this with no restriction.
The foregoing is merely the embodiments of this specification, are not limited to this specification.For art technology For personnel, this specification can have various modifications and variations.It is all made any within the spirit and principle of this specification Modification, equivalent replacement, improvement etc., should be included within the scope of the claims of this specification.

Claims (9)

1. a kind of multi-section circulation formula rolled film super-pressure counter-infiltration system characterized by comprising filter (1), water inlet high pressure It pumps (2), Serve Motor Control valve (5), water inlet supervisor (6), concentrated water main pipe (7), cross-flow filtration system, produce water supervisor (11), Middle filter (1) is set on water inlet supervisor (6), and the side of water inlet high-pressure pump (2) is connected with into water and is responsible for (6), high-pressure pump of intaking (2) side that the other side is connected with separate water inlet high-pressure pump (2) on concentrated water main pipe (7) the concentrated water main pipe (7), which is equipped with, to be watched Take motor control valve (5);
The concentrated water main pipe (7) wherein intake high-pressure pump (2) between Serve Motor Control valve (5) is communicated with cross-flow filtration system, The other side of the cross-flow filtration system is also connected to production water supervisor (11);
The cross-flow filtration system includes several be arranged side by side the first rolling membranous system (41) and second rolling membranous systems (42), Several described the first rolling membranous systems (41) are placed in the front side of the second rolling membranous system (42).
2. multi-section circulation formula rolled film super-pressure counter-infiltration system as described in claim 1, which is characterized in that the first volume Formula membranous system (41) includes sequentially connected circulation water inlet pipe (8), the first rolled membrane module (411), recycling outlet (9), and One rolling membranous system (41) further includes concentrated water recycling booster pump (3), produces water branch pipe (10), and wherein circulation water inlet pipe (8) is separate One end of first rolled membrane module (411) is connected to concentrated water main pipe (7), and recycling outlet (9) is far from the first rolled membrane module (411) one end is also connected to concentrated water main pipe (7);Concentrated water recycles booster pump (3) and is set on circulation water inlet pipe (8), produces water branch One end of pipe (10) is connect with the first rolled membrane module (411), and the other end for producing water branch pipe (10) is connected to water supervisor (11) is produced.
3. multi-section circulation formula rolled film super-pressure counter-infiltration system as described in claim 1, which is characterized in that the volume Two Formula membranous system (42) includes sequentially connected circulation water inlet pipe (8), the second rolled membrane module (421), recycling outlet (9), and Two rolling membranous systems (42) further include concentrated water recycling booster pump (3), produce water branch pipe (10), and wherein circulation water inlet pipe (8) is separate One end of second rolled membrane module (421) is connected to concentrated water main pipe (7), and recycling outlet (9) is far from the second rolled membrane module (421) one end is also connected to concentrated water main pipe (7);Concentrated water recycles booster pump (3) and is set on circulation water inlet pipe (8), produces water branch One end of pipe (10) is connect with the second rolled membrane module (421), and the other end for producing water branch pipe (10) is connected to water supervisor (11) is produced.
4. multi-section circulation formula rolled film super-pressure counter-infiltration system as claimed in claim 2, which is characterized in that the first volume Formula membrane module (411) include several be connected in series the first coiled reverse osmosis membrane element (4111), first of series connection The water inlet of first coiled reverse osmosis membrane element (4111) is connect with circulation water inlet pipe (8), series connection the last one The concentrated water discharge mouth of first coiled reverse osmosis membrane element (4111) is connect with recycling outlet (9), each of series connection The production mouth of a river of first coiled reverse osmosis membrane element (4111) is connect with production water branch pipe (10).
5. multi-section circulation formula rolled film super-pressure counter-infiltration system as claimed in claim 3, which is characterized in that the volume Two Formula membrane module (421) include several be connected in series the second coiled reverse osmosis membrane element (4211), first of series connection The water inlet of second coiled reverse osmosis membrane element (4211) is connect with circulation water inlet pipe (8), series connection the last one The concentrated water discharge mouth of second coiled reverse osmosis membrane element (4211) is connect with recycling outlet (9), each of series connection The production mouth of a river of second coiled reverse osmosis membrane element (4211) is connect with production water branch pipe (10).
6. multi-section circulation formula rolled film super-pressure counter-infiltration system as claimed in claim 2 or claim 3, which is characterized in that further include Control system, water inlet electric conductivity detector (12), flow of inlet water sensor (13), concentrated water flow sensor (14), the water inlet Electric conductivity detector (12), flow of inlet water sensor (13), concentrated water flow sensor (14), water inlet high-pressure pump (2), concentrated water are followed again Ring booster pump (3), Serve Motor Control valve (5) are electrically connected at control system;
It wherein intakes electric conductivity detector (12), flow of inlet water sensor (13) is set on water inlet supervisor (6), concentrated water flow sensing Device (14) is in the concentrated water main pipe (7) after Serve Motor Control valve (5).
7. multi-section circulation formula rolled film super-pressure counter-infiltration system as claimed in claim 4, which is characterized in that the first volume The quantity of formula membranous system (41) is two or three, and the quantity of the second rolling membranous system (42) is one;The first volume The quantity of formula reverse-osmosis membrane element (4111) is five or six.
8. multi-section circulation formula rolled film super-pressure counter-infiltration system as claimed in claim 5, which is characterized in that the first volume The quantity of formula membranous system (41) is two or three, and the quantity of the second rolling membranous system (42) is one;The volume Two The quantity of formula reverse-osmosis membrane element (4211) is five or six.
9. a kind of control method of multi-section circulation formula rolled film super-pressure counter-infiltration system, any described using claim 1-8 Multi-section circulation formula rolled film super-pressure counter-infiltration system, which is characterized in that including following procedure:
The first rolling membranous system (41) that several are arranged side by side is named as one section of first rolling according to sequence from front to back Membranous system, two section of first rolling membranous system, and so on;
Firstly, control system closes concentrated water recycling booster pump (3), water inlet high-pressure pump (2) and Serve Motor Control valve are opened (5);
Influent waste water first enters filter (1) through water inlet supervisor (6) and removes impurity, subsequently into water inlet high-pressure pump (2) pressurization, increases Water inlet after pressure flows into concentrated water main pipe (7), then adjusts concentrated water displacement heel row through Serve Motor Control valve (5) and goes out;
It intakes after high-pressure pump (2) unlatching 60s~100s, control system opens the concentrated water recycling in one section of first rolling membranous system Booster pump (3), one section of first rolling membranous system forms cross-flow circulation at this time;
About the cross-flow circulation of one section of first rolling membranous system, specifically include: through the pressurized a part of water inlet high-pressure pump (2) into Water flows into the circulation water inlet pipe (8) of one section of first rolling membranous system, enters after concentrated water recycling booster pump (3) continues pressurization Filtering in first rolled membrane module (411), filtered production water are flowed into production water supervisor (11) through production water branch pipe (10) and are discharged, mistake Concentrated water after filter is flowed into concentrated water main pipe (7) through recycling outlet (9);For filtered concentrated water, a part is along concentrated water Main pipe (7) flows backward, and another part moves in circles flowing in one section of first rolling membranous system;
After 60s~100s is opened in concentrated water recycling booster pump (3) in one section of first rolling membranous system, control system opens two sections (3) in first rolling membranous system, two section of first rolling membranous system forms cross-flow circulation at this time, the process of cross-flow circulation with one section First rolling membranous system is identical;
The cross-flow cyclic process of remaining several sections of the first rolling membranous system (41) and so on;
Then, control system opens the concentrated water in the second rolling membranous system (42) and recycles booster pump (3), at this time the second rolled film System (42) forms cross-flow circulation, and the cross-flow cyclic process of the second rolling membranous system (42) specifically includes: several are arranged side by side The first rolling membranous system (41) cross-flow circulation after concentrated water summarized by concentrated water main pipe (7) after, a part of concentrated water enters second In the circulation water inlet pipe (8) of rolling membranous system (42), enter volume Two formula film after concentrated water recycling booster pump (3) continues pressurization Filtering in component (421), filtered production water are flowed into production water supervisor (11) through production water branch pipe (10) and are discharged, filtered concentrated water It is flowed into concentrated water main pipe (7) through recycling outlet (9);For filtered concentrated water, a part is in the second rolling membranous system (42) move in circles flowing in, and another part flows backward along concentrated water main pipe (7), is discharged after Serve Motor Control valve (5).
CN201910925050.3A 2019-09-27 2019-09-27 A kind of multi-section circulation formula rolled film super-pressure counter-infiltration system and control method Pending CN110510767A (en)

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