CN104326591B

CN104326591B - The reverse osmosis seawater desalting integration apparatus that modularization is movable and using method

Info

Publication number: CN104326591B
Application number: CN201410466254.2A
Authority: CN
Inventors: 张倩
Original assignee: SHENYANG YUANDA TECHNOLOGY PARK Co Ltd
Current assignee: Shenyang Yuanda solid waste treatment Co. Ltd.
Priority date: 2014-09-12
Filing date: 2014-09-12
Publication date: 2016-02-10
Anticipated expiration: 2034-09-12
Also published as: CN104326591A

Abstract

The present invention relates to field of seawater desalination, be specially the movable reverse osmosis seawater desalting integration apparatus of a kind of modularization and using method.This equipment forms reverse osmosis seawater desalination system by water pump, sterilant chemicals dosing plant, strainer, ultra-filtration membrane group, recycle pump, reductive agent chemicals dosing plant, Scale inhibitors chemicals dosing plant, high-pressure pump, reverse osmosis membrane group, aftertreatment medicine system, cleaning water tank, collapsible water storage bag, all be fixedly installed in trailer box except water pump, cleaning water tank, collapsible water storage bag, whole casing is referred to as reverse osmosis seawater desalting module.Adopt the bi-membrane method technique of strainer+ultrafiltration+reverse osmosis, by pretreatment unit, desalination by reverse osmosis unit, chemical dosing unit, matting unit, electrically and control unit is compact, firm, be rationally integrated in and carry in the trailer of closed box, volume is little, lightweight, can movement flexibly, also transport by modes such as aviation, highway, railway and boat-carryings.

Description

The reverse osmosis seawater desalting integration apparatus that modularization is movable and using method

Technical field

The present invention relates to field of seawater desalination, be specially the movable reverse osmosis seawater desalting integration apparatus of a kind of modularization and using method.

Background technology

In today that economy is growing, whole world most countries is all faced with this common issue of shortage of water resources.China is ocean big country, island is numerous, and coastal and central and west regions have very abundant underground brackish water resource, when underground water intake and interregional water transfer are subject to the restriction of increasing condition, exploitation and using of seawater and brackish water resource, carry out seawater (brackish water) desalination just to become and increase income and decrease expenditure, solve the grand strategy approach that China's fresh water is in short supply.

Reverse osmosis is desalination technology comparatively economic and practical at present.At present, China has put that sea water desaltination project is mostly into operation is all the desalimtor of kiloton, ton.Some research and development institutions are the sea water desalting equipment being carrier with standard specifications freight container for medium scale sea water desaltination project development, and water yield per day is all more than hundred tons.

Chinese utility model patent (publication number is CN2677366Y) discloses a kind of middle-size and small-size integrated reverse osmosis sea water desalinating plant, device is made up of automatic cleaning strainer, Scale inhibitors chemicals dosing plant, hyperfiltration rinsing water pump, hyperfiltration rinsing water case, hyperfiltration membrane assembly, high-pressure pump, topping-up pump, energy recycle device, reverse osmosis membrane group, reverse osmosis flush box, reverse osmosis wash-water pump, and the armamentarium in said system except raw water pump is all fixed in the freight container of a 6' × 3', 12' × 3'.The research and development of container-type sea water desalting equipment are applicable to, in the limited area of execution conditions, reduce construction investment cost, reduce construction period, but also there is complex structure, volume relative to problem that is huge, inconvenience movement.

As the pre-treatment of reverse osmosis seawater desalting, the advantage that ultrafiltration technology is little with its floor space, stable effluent quality, reagent cost are low, instead of conventional coagulation-precipitation-sand filtration technology gradually.Its subject matter is membrane pollution problem, and namely along with the time run increases, membrane resistance increases, and the pressure increase that fouling membrane causes ultrafiltration to run or the reduction of water production rate, must adopt matting to carry out decubation performance.But matting reduces operation stability frequently, can reduce the life-span of film.

Chinese invention patent application (publication number is CN101844837A) discloses a kind of reverse osmosis seawater desalination and ultrafiltration preprocessing method, coagulating agent is added in the former water pot of seawater, through hydraulic mixing and mechanical stirring combination coagulated after, directly ultrafiltration is carried out by submerged ultrafiltration without settling tank, wherein comprise the chemical enhanced back flushing to ultra-filtration membrane, filtration cycle 30 ~ 60min, backwash time 0.5 ~ 4min, chemical enhanced back flushing frequency is 1 ~ 7 day/time.Chinese utility model patent (publication number is CN201056504Y) discloses a kind of vehicular sea water desalinating plant, sea water desalinating plant comprises filtration unit, desalting equipment and automation operating system, filtration unit comprises outstanding sand filter, self-cleaning filter, immersion ultra-fine filter, and pretreated seawater deposits in intermediate water tank.Desalting equipment comprises cartridge filter, high-pressure pump, reverse-osmosis membrane element etc., and energy content retrieving arrangement, reclaim high-pressure thick water and enter reverse osmosis membrane again by topping-up pump.

All adopt immersion ultrafiltration as the pre-treatment of reverse osmosis in above-mentioned two patent applications, but immersion ultrafiltration need in operational process, clean the strainability ensureing film frequently, requires that level of automation is high.As the pre-treatment of ultrafiltration, no matter add coagulating agent mechanical stirring seawater and adopt self-cleaning filter, all need higher level of automation.Although level of automation is high eliminate manual operation, also bring higher equipment investment cost and system operation cost.As the cleaning system of immersion ultrafiltration, Chinese invention patent application (publication number is CN101844837A) needs to be equipped with special Membrane cleaning system (water tank, water pump, pipeline), Chinese utility model patent (publication number is CN201056504Y) is though not mentioned, but as same treatment process, also must aforesaid device be needed.And ultrafiltrated permeation liquid enters ultrafiltration intermediate water tank and also takies vehicle body space in Chinese utility model patent (publication number is CN201056504Y), increase car body volume.In reverse osmosis system, except the reverse osmosis membrane necessary except reverse osmosis system and high-pressure pump, further provided with energy recycle device and topping-up pump.

Chinese utility model patent (publication number is CN201538698U) discloses a kind of reverse osmosis concentrated water energy recycle device and vehicular sea water desalinating plant, this device comprises reverse osmosis unit, reverse osmosis unit chain is connected to dense water energy recycle device, and between the former water out of energy recycle device and reverse osmosis unit, chain is connected to topping-up pump.Vehicular sea water desaltination in above-mentioned patent, adopts energy recycle device and topping-up pump.But, though energy recycle device significantly can reduce the operation energy consumption of reverse osmosis desalination device and make water cost, but because the price of energy recycle device own is high, subsidiary topping-up pump, pressure piping all will increase system investments cost, maintenance cost, and this is obviously uneconomic for year formula sea water desaltination desalination system producing water small scale.And at present energy recycle device is used for big-and-middle-sized seawater desalination system, inapplicable for small size formula seawater desalination system.

In addition, Chinese utility model patent (publication number is CN201056504Y) and Chinese utility model patent (publication number is CN201538698U), above-mentioned two patents all do not say the form of title car body, and the power supply mode problem of seawater desalination system.

Summary of the invention

The reverse osmosis seawater desalting integration apparatus that the object of the present invention is to provide a kind of modularization movable and using method, adopt strainer+ultrafiltration+reverse osmosis seawater desalting water production rate and produce water quality stabilizing, can long-distance transportation be realized by reverse osmosis seawater desalting module, and easily realize the air transport of equipment, land transportation, shipping.

Technical scheme of the present invention is:

The reverse osmosis seawater desalting integration apparatus that a kind of modularization is movable, this equipment has reverse osmosis seawater desalination system, reverse osmosis seawater desalination system comprises: water pump, sterilant chemicals dosing plant, strainer, ultra-filtration membrane group, recycle pump, reductive agent chemicals dosing plant, Scale inhibitors chemicals dosing plant, high-pressure pump, reverse osmosis membrane group, aftertreatment medicine system, collapsible water storage bag, all be fixedly installed in trailer box except water pump, collapsible water storage bag, whole trailer box is referred to as reverse osmosis seawater desalting module, and concrete structure is as follows:

Water pump is by the water inlet orifice of pipeline and reverse osmosis seawater desalting module, the water inlet interface of reverse osmosis seawater desalting module is communicated with the input terminus of strainer by pipeline, the pipeline that the water inlet interface of reverse osmosis seawater desalting module is communicated with strainer arranges sterilant chemicals dosing plant, the output terminal of strainer is communicated with by the input terminus of pipeline with ultra-filtration membrane group, the output terminal of ultra-filtration membrane group divides two-way: a road is that water output terminal is produced in ultrafiltration, be communicated with the input terminus of high-pressure pump, the ultrafiltration water producing pipe road that ultra-filtration membrane group is communicated with high-pressure pump arranges reductive agent chemicals dosing plant, Scale inhibitors chemicals dosing plant, another road is the dense water output terminal of ultrafiltration, is communicated with the input terminus of recycle pump, circulation delivery side of pump is communicated with by the drainage interface of pipeline with reverse osmosis seawater desalting module, the pipeline be communicated with at strainer, arranges connecting pipeline between recycle pump and the pipeline of reverse osmosis seawater desalting module draining orifice with ultra-filtration membrane group, high pressure delivery side of pump is communicated with by the input terminus of pipeline with reverse osmosis membrane group, the pipeline be communicated with in high-pressure pump, arranges connecting pipeline between recycle pump and the pipeline of reverse osmosis seawater desalting module draining orifice with reverse osmosis membrane group, the output terminal of reverse osmosis membrane group divides two-way: a road is reverse osmosis produced water lines, with the product water orifice of reverse osmosis seawater desalting module, the pipeline producing water orifice in reverse osmosis membrane group and reverse osmosis seawater desalting module arranges aftertreatment medicine system, and the product water interface of reverse osmosis seawater desalting module is communicated with collapsible water storage bag by pipeline, another road is reverse osmosis concentrated water lines, is connected on the pipeline of recycle pump and reverse osmosis seawater desalting module draining orifice.

The reverse osmosis seawater desalting integration apparatus that described modularization is movable, reverse osmosis seawater desalination system also comprises the cleaning water tank be positioned at outside reverse osmosis seawater desalting module, by the external hose component film cleaning system of cleaning water tank, recycle pump, band rapid-acting coupling, the case bottom outlet of cleaning water tank is connected with rapid-acting coupling A', and the top of cleaning water tank is connected with rapid-acting coupling B', C', D'; Pump entry pipeline is equipped with rapid-acting coupling A, ultra-filtration membrane group export pipeline is equipped with rapid-acting coupling B, and the product water interface of reverse osmosis seawater desalting module is rapid-acting coupling C, and the drainage interface of reverse osmosis seawater desalting module is rapid-acting coupling D; During cleaning ultra-filtration membrane group, adopt hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, adopt hose connection rapid-acting coupling A-A' and B-B' of two end band rapid-acting couplings; During cleaning reverse osmosis membrane group, adopt hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, adopt hose connection rapid-acting coupling A-A' and D-D' of two end band rapid-acting couplings.

The reverse osmosis seawater desalting integration apparatus that described modularization is movable, reverse osmosis seawater desalination system also comprises the generator be positioned at inside reverse osmosis seawater desalting module, and the electrical equipment that generator is respectively in reverse osmosis seawater desalination system is powered.

The reverse osmosis seawater desalting integration apparatus that described modularization is movable, the interface of the water inlet of reverse osmosis seawater desalting module, draining, product water adopts rapid-acting coupling, described rapid-acting coupling is fixedly installed in reverse osmosis seawater desalting modular end plate, reverse osmosis seawater desalting module, respectively by the rapid-acting coupling of water inlet, draining, product water, makes reverse osmosis seawater desalting module with extraneous water pump, cleans water tank, collapsible water storage bag is connected; Adopt interface that the hose connection water pump water outlet mouthpiece of two end band rapid-acting couplings and modular end plate intake, adopt hose connection collapsible water storage bag water inlet interface and the modular end plate upper water-out interface of two end band rapid-acting couplings.

The reverse osmosis seawater desalting integration apparatus that described modularization is movable, reverse osmosis seawater desalting integration apparatus sets gradually reverse osmosis seawater desalting module, storing module, motion module from top to bottom, wherein: motion module is the installation of whole portable sea water desalting equipment, mobile basis, be made up of car puller hook, wheel, trailer support body, the bottom of trailer support body arranges wheel, and one end of trailer support body arranges car puller hook; Storing module on trailer support body, under reverse osmosis seawater desalting module; Reverse osmosis seawater desalting module is made up of trailer box and trailer box interior reverse osmosis seawater desalting parts, and the trailer box of reverse osmosis seawater desalting module is combined by left, right, front and rear, upper and lower position by trailer box end plate one, trailer box end plate two, trailer box wallboard one, trailer box wallboard two and top board, base plate.

The reverse osmosis seawater desalting integration apparatus that described modularization is movable, the ultra-filtration membrane in ultra-filtration membrane group is rolling ultrafiltration membrane, horizontal layout, is arranged in the normal glass steel membrane shell of reverse osmosis membrane, forms ultra-filtration membrane group by membrane element series connection, membrane module parallel connection; Reverse osmosis membrane in reverse osmosis membrane group is coiled reverse osmosis membrane, horizontal layout, is arranged in the normal glass steel membrane shell of reverse osmosis membrane, forms reverse osmosis membrane group by membrane element series connection, membrane module parallel connection.

The using method of the reverse osmosis seawater desalting integration apparatus that described modularization is movable, the process that reverse osmosis seawater desalination system uses is as follows:

1) seawater is pumped into reverse osmosis seawater desalting module by water pump, the strainer that the seawater entering reverse osmosis seawater desalting module enters through flexible pipe, removes the tiny grains of sand of more than 50 μm, planktonic organism, algae, suspended substance; Before seawater enters strainer, sterilant chemicals dosing plant adds sterilant in the duct, adopts and is installed on the Homogeneous phase mixing that ducted static mixer realizes medicament and pending seawater; After filter, seawater enters ultra-filtration membrane group; Entering seawater in ultra-filtration membrane group adopts continuous cross-flow to filter, and cross flow filter makes suspended solid in seawater along film surface flow, forms fluid shear condition on the surface of the film, thus makes pollutent be difficult at film surface sediment;

2) in ultrafiltration membrane elements water inlet be divided into by ultra-filtration membrane, only containing small-molecule substance and soluble solid ultrafiltrated permeation liquid and not by ultra-filtration membrane, containing the high dense water of ultrafiltration of colloid, protein, microorganism and larger molecular organics concentration; Wherein, reverse osmosis membrane group is entered by the ultrafiltrated permeation liquid of ultra-filtration membrane, all do not enter recycle pump by the dense water of the ultrafiltration of ultra-filtration membrane, after the dense water of ultrafiltration flows out from recycle pump, part ultrafiltration dense water and with from water pump, enter ultra-filtration membrane group through the former seawater of disinfection filtering, another part ultrafiltration concentrated water drainage goes out outside reverse osmosis seawater desalting module;

3) before entering reverse osmosis membrane group by the ultrafiltrated permeation liquid of ultra-filtration membrane group, reductive agent is added by reductive agent medicine system, realize the effect of removing chlorine residue in water, protection reverse osmosis membrane, reductive agent adopts static mixer to realize the Homogeneous phase mixing of medicament and process water; The ultrafiltrated permeation liquid removing chlorine residue need add Scale inhibitors by Scale inhibitors medicine system, realize protection reverse osmosis membrane, prevent the effect of film fouling, Scale inhibitors adopts static mixer to realize medicament and the Homogeneous phase mixing processing water, and the ultrafiltrated permeation liquid adding Scale inhibitors boosts continuously through high-pressure pump pump and pumps into reverse osmosis membrane group;

4) enter the ultrafiltrated permeation liquid of reverse osmosis membrane group, be divided in reverse-osmosis membrane element by reverse osmosis membrane, containing soluble solid low or purer reverse osmosis transparent liquid and not by reverse osmosis membrane, containing the high reverse osmosis concentrated water of soluble solid concentration; By the collapsible water storage bag of reverse osmosis transparent liquid outside reverse osmosis produced water tube hose inflow reverse osmosis seawater desalting module of reverse osmosis membrane group, all do not discharged outside reverse osmosis seawater desalting module by the reverse osmosis concentrated water of reverse osmosis membrane.

The using method of the reverse osmosis seawater desalting integration apparatus that described modularization is movable, after ultra-filtration membrane group, reverse osmosis membrane group run for some time, carries out the cleaning of ultra-filtration membrane and reverse osmosis membrane; Membrane cleaning system by clean water tank, recycle pump, band rapid-acting coupling external hose form, cleaning water tank case bottom outlet be connected with rapid-acting coupling A', cleaning water tank top be connected with rapid-acting coupling B', C', D'; Pump entry pipeline is equipped with rapid-acting coupling A, ultra-filtration membrane group export pipeline is equipped with rapid-acting coupling B, and the product water interface of reverse osmosis seawater desalting module is rapid-acting coupling C, and the drainage interface of reverse osmosis seawater desalting module is rapid-acting coupling D; During normal operation, rapid-acting coupling A, B rapid-acting coupling seals; During cleaning ultra-filtration membrane group, with hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, reverse osmosis produced water is loaded cleaning water tank, then use hose connection rapid-acting coupling A-A' and B-B' of two end band rapid-acting couplings, realize the cleaning of ultra-filtration membrane group, during cleaning, disconnect the connection of C, C'; During cleaning reverse osmosis membrane group, with hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, reverse osmosis produced water is loaded cleaning water tank, then use hose connection rapid-acting coupling A-A' and D-D' of two end band rapid-acting couplings, realize the cleaning of reverse osmosis membrane group, during cleaning, disconnect the connection of C, C'; Cleaning ultrafiltration module: produce water and enter recycle pump by the flexible pipe between A-A', then enter ultrafiltration module by the pipeline between recycle pump and ultrafiltration module and clean, the water after cleaning flows into cleaning water tank by the flexible pipe between B-B'; Cleaning reverse osmosis module: produce water and enter recycle pump by the flexible pipe between A-A', then enter reverse osmosis module by the pipeline between recycle pump and reverse osmosis module and clean, the water after cleaning flows into cleaning water tank by the flexible pipe between D-D';

The drainage interface of the drainage interface of reverse osmosis concentrated water and the dense water of ultrafiltration shares, reverse osmosis concentrated water and ultrafiltration concentrated stream are through the drainage interface of reverse osmosis seawater desalting module, the drainage interface of reverse osmosis seawater desalting module and the concentrated water discharge of an end band rapid-acting coupling hose connection, the concentrated water discharge flexible pipe the other end is positioned over specific drainage point, and concentrated water drainage is gone out outside reverse osmosis seawater desalting module.

The using method of the reverse osmosis seawater desalting integration apparatus that described modularization is movable, the unlatching of whole reverse osmosis seawater desalination system, operation adopt PLC system to realize automatically controlling; During reverse osmosis seawater desalination system conventional operation, reverse osmosis seawater desalination system is set to all automatically, and reverse osmosis seawater desalination system can realize fully automatic operation without the need to manual operation; During reverse osmosis seawater desalination system cleaning, be adjusted to by recycle pump manually, after pipeline has connected, starting recycle pump can complete cleaning; When PLC system detects that certain Testing index of reverse osmosis seawater desalination system is abnormal, send a signal to warning, simultaneously by fault cause and position display on operating display curtain, after relating operation personnel receive PLC system warning, pointed out abnormal correction according to PLC system, reverse osmosis seawater desalination system can normally run after resetting; When reverse osmosis seawater desalination system does not work, disconnect the connection of external pipeline and reverse osmosis seawater desalination system, and seal system water inlet, draining, product water swivel with rapid-acting coupling.

The using method of the reverse osmosis seawater desalting integration apparatus that described modularization is movable, discharge the dense water yield governor valve control of ultrafiltration outside reverse osmosis seawater desalting module, shown by spinner-type flowmeter, the spinner-type flowmeter of the dense water of ultrafiltration is arranged on outside trailer box end plate; The handle of variable valve is arranged on outside trailer box end plate, and the valve body of corresponding variable valve is stayed in casing, namely inside trailer box end plate; Discharge the reverse osmosis concentrated water yield governor valve control outside reverse osmosis seawater desalting module, shown by spinner-type flowmeter; The handle of variable valve is arranged on outside trailer box end plate, and corresponding valve body is stayed in casing, and namely inside end plate, the spinner-type flowmeter of reverse osmosis concentrated water is arranged on outside trailer box end plate.

Design philosophy of the present invention is:

1, the pre-processing structure of reverse osmosis seawater desalting and technique

As the alternative techniques of domestic traditional more medium filter+activated charcoal filter+cartridge filter, adopt 50 μm of strainer+spiral wounds as the pre-treatment of reverse osmosis, this kind of combination reduces kind and the chemical feeding quantity of chemical agent, eliminates the frequent replacing of medium and gac; Ultra-filtration membrane is without the need to backwash; Water production rate and product water quality stabilizing, remove the intermediate water tank of ultrafiltration from; Eliminate cartridge filter simultaneously, simplify technical process.

1) add sterilant to the seawater in system, seawater enters 50 μm of strainers afterwards, then enters the filtration of ultra-filtration membrane group.Sterilant mixes with seawater the static mixer adopting and be arranged on pipeline, make medicament and sea water mixing even.

2) 50 μm of strainers adopt mesh gauze filters, for remove more than 50 μm the tiny grains of sand, planktonic organism, algae, suspended substance.Mesh gauze filter is the pretreatment unit of ultra-filtration membrane group, ensures the normal operation of ultra-filtration equipment.

3) ultra-filtration membrane in ultra-filtration membrane group is rolling ultrafiltration membrane, forms ultrafiltration system by the series connection of membrane element, the parallel connection of membrane module.Rolling ultrafiltration membrane adopts continuous cross-flow to filter, and dense water section circulation, partial discharge, by concentrated water drainage high-volume control UF ultrafiltration system total yield.Employing cross-flow circulates, and makes to intake in film surface circulation in a large number, can reduce the blocking of film surface particle, reduces cleaning frequency, ensures ultra-filtration membrane flux, ensures that water water quality and continuous print water production rate are produced in ultrafiltration.Ultra-filtration flux is 11LMH, and cleaning in 3 ~ 6 months once, is cleaned as chemical enhanced cleaning.

2, the Membrane cleaning system of movable small sea water desalting equipment is applicable to

1) adopt ultra-filtration membrane as system pre-treatment, although ensure that pretreated water quality, the anti-cleaning of ultra-filtration membrane improves system automation degree virtually frequently, adds equipment investment cost.The application of breakthrough rolling ultrafiltration membrane, reduces the cleaning frequency of ultrafiltration system, and carry out a backwash from every 30 ~ 60min, within 1 ~ 7 day, carry out once chemistry and strengthen washing being reduced to 3 ~ 6 months and carrying out primary chemical cleaning, cleaning frequency is filtered consistent with reverse osmosis.Meanwhile, because reverse osmosis is also rolled film, the kind of matting medicament is decreased, easily manual maintenance.

2) system does not have special Membrane cleaning pipeline, scavenging pump.During cleaning, the cleaning water tank of 100L that on-fixed is installed is filled a certain amount of reverse osmosis produced water, by being with the flexible pipe of rapid-acting coupling, realizing the connection of cleaning water tank and recycle pump, ultra-filtration membrane, reverse osmosis membrane, and forming loop line; Manually boot recycle pump, realize as required ultra-filtration membrane, reverse osmosis membrane cleaning time the process such as circulation, immersion, flushing.

3, adopting modular design, by designing the flexible pipe of rapid-acting coupling cleverly and band rapid-acting coupling, sea water desaltination module and extraneous connection can be realized.By the flexible pipeline connecting mode of rapid-acting coupling, the water intaking of the feasible system external world, draining, the functions such as internal system cleaning.

4, adopt oil electric engine to realize system power supply, can meet without the water demand under condition of power supply.

5, all chemical feeding points adopt static mixer to realize medicament and the Homogeneous phase mixing processing water.

Advantage of the present invention and beneficial effect are:

1, present device volume little (3600mm × 1800mm × 2300mm), lightweight (only 4 tons), car body is unpowered towing mechanism, when need closely move, car puller hook is hung on the short-distance movement that any vehicle can realize sea water desalting equipment; When needing remote mobile, available small-sized clamshell car can realize long-distance transportation, and easily realizes the air transport of equipment, land transportation, shipping.

2, present device adopts high-recovery less energy-consumption, advanced coiled reverse osmosis membrane, coupling and reverse osmosis membrane possess the rolling ultrafiltration membrane of same assembly pattern simultaneously, cleaning frequency is low, only need within 3 ~ 6 months, clean once, solve the puzzlement frequently carrying out ultra-filtration membrane cleaning for bantam, eliminate the cleaning system of the immobilized pipeline, scavenging pump etc. that must be equipped with for the cleaning of ultra-filtration membrane specially in traditional ultrafiltration design.Further, reduce equipment investment cost, reduce artificial running maintenance frequency, fouling membrane and the film blockage problem of existing reverse osmosis seawater desalting can be solved, and matting reduces operation stability, reduces the problems such as the work-ing life of film frequently.

3, present device water production rate is little, can meet 150 people's demand of domestic waters, the daily drinking-water demand of 15000 people.From economic benefit angle, energy-recuperation system is not set, eliminates energy recycle device, topping-up pump, energy recovery pressure piping, reduce equipment investment cost, be more suitable for the design of small-sized seawater desalination system.

4, present device adopts oil electric engine to be that seawater desalination system is powered, make reverse osmosis seawater desalination system can in remote districts, normally work under disengaging grid condition, can meet without the water demand under condition of power supply, solve fresh water from far-off regions and obtain the large problem of difficulty.

5, present device is applicable to: the field work districts such as desert and side area oil, mine locating, army's battlefield manoeuvre, FAMB, fight flood and relieve victims, naval vessels, keep (temporarily) for emergency use water such as island, frontier guards, oil platform, industrial and mineral, enterprise, need in the military and civilian department of coastal mobile operating.

Accompanying drawing explanation

Fig. 1 is the principle schematic of reverse osmosis seawater desalting integration apparatus of the present invention.

Fig. 2 is the structural front view of reverse osmosis seawater desalting integration apparatus of the present invention.

Fig. 3 is the structure vertical view of reverse osmosis seawater desalting integration apparatus of the present invention.

Fig. 4 is the structure left view of reverse osmosis seawater desalting integration apparatus of the present invention.

Fig. 5 is quick coupling structure schematic diagram of the present invention.Wherein, a rapid-acting coupling one; B rapid-acting coupling two.

In figure, 1 water pump; 2 sterilant chemicals dosing plants; 3 strainers; 4 ultra-filtration membrane groups; 5 recycle pumps; 6 reductive agent chemicals dosing plants; 7 Scale inhibitors chemicals dosing plants; 8 high-pressure pump; 9 reverse osmosis membrane groups; 10 aftertreatment medicine systems; 11 cleaning water tanks; 12 oil electric engines; 13 collapsible water storage bags; 14 reverse osmosis seawater desalting modules; 15 storing modules; 16 motion module; 17 trailer box end plates one; 18 trailer box wallboards one; 19 trailer box end plates two; 20 trailer box wallboards two; 21 control panels; 22 trailer support bodys; 23 wheels; 24 car puller hooks.

Embodiment

As Figure 1-Figure 5, the reverse osmosis seawater desalting integration apparatus that modularization of the present invention is movable, adopt the bi-membrane method technique of strainer+ultrafiltration+reverse osmosis, by pretreatment unit, desalination by reverse osmosis unit, chemical dosing unit, matting unit, electrically and control unit is compact, firm, be rationally integrated in one small-sized, carry in the trailer of closed box, volume is little, lightweight, can movement flexibly, also transport by modes such as aviation, highway, railway and boat-carryings.This equipment mainly comprises: water pump 1, sterilant chemicals dosing plant 2, strainer 3, ultra-filtration membrane group 4, recycle pump 5, reductive agent chemicals dosing plant 6, Scale inhibitors chemicals dosing plant 7, high-pressure pump 8, reverse osmosis membrane group 9, aftertreatment medicine system 10, cleaning water tank 11, oil electric engine 12, collapsible water storage bag 13, reverse osmosis seawater desalting module 14 (abbreviation module), storing module 15, motion module 16, trailer box end plate 1, trailer box wallboard 1, trailer box end plate 2 19, trailer box wallboard 2 20, control panel 21 etc., and concrete structure is as follows:

By water pump 1, sterilant chemicals dosing plant 2, strainer 3, ultra-filtration membrane group 4, recycle pump 5, reductive agent chemicals dosing plant 6, Scale inhibitors chemicals dosing plant 7, high-pressure pump 8, reverse osmosis membrane group 9, aftertreatment medicine system 10, cleaning water tank 11, oil electric engine 12, collapsible water storage bag 13 forms reverse osmosis seawater desalination system, except water pump 1, cleaning water tank 11, collapsible water storage bag 13 is outer to be all fixedly installed in trailer box, whole casing is referred to as reverse osmosis seawater desalting module 14, the electrical equipment that oil electric engine 12 is respectively in reverse osmosis seawater desalination system is powered, high-pressure pump 8 is the matching used conventional pump housing with reverse osmosis membrane group 9.

Water pump 1 is by the water inlet orifice of pipeline and reverse osmosis seawater desalting module 14, the water inlet interface of reverse osmosis seawater desalting module 14 is communicated with by the input terminus of pipeline with strainer 3, the pipeline that the water inlet interface of reverse osmosis seawater desalting module 14 is communicated with strainer 3 arranges sterilant chemicals dosing plant 2, the output terminal of strainer 3 is communicated with by the input terminus of pipeline with ultra-filtration membrane group 4, the output terminal of ultra-filtration membrane group 4 divides two-way: a road is that water output terminal is produced in ultrafiltration, be communicated with the input terminus of high-pressure pump 8, the ultrafiltration water producing pipe road that ultra-filtration membrane group 4 is communicated with high-pressure pump 8 arranges reductive agent chemicals dosing plant 6, Scale inhibitors chemicals dosing plant 7 and rapid-acting coupling B, another road is the dense water output terminal of ultrafiltration, is communicated with the input terminus of recycle pump 5, and the dense water lines of ultrafiltration that ultra-filtration membrane group 4 is communicated with recycle pump 5 arranges rapid-acting coupling A, the output terminal of recycle pump 5 is communicated with the drainage interface (rapid-acting coupling D) of reverse osmosis seawater desalting module 14 by pipeline, (this pipeline has two to act on to arrange connecting pipeline M between the pipeline that the pipeline be communicated with ultra-filtration membrane group 4 at strainer 3, recycle pump 5 are communicated with reverse osmosis seawater desalting module 14 drainage interface, after time system is normally run, dense water flows out from recycle pump 5, the dense water of a part enters ultra-filtration membrane group 4 by this pipeline, and another part concentrated water drainage goes out outside module.When cleaning ultra-filtration membrane group 4, recycle pump 5 is cleaned ultra-filtration membrane group 4 by this pipeline after being pumped into by the product water in cleaning water tank 11).The output terminal of high-pressure pump 8 is communicated with by the input terminus of pipeline with reverse osmosis membrane group 9, arranges connecting pipeline N between the pipeline that the pipeline be communicated with in high-pressure pump 8, recycle pump 5 are communicated with reverse osmosis seawater desalting module 14 drainage interface with reverse osmosis membrane group 9; The output terminal of reverse osmosis membrane group 9 divides two-way: a road is reverse osmosis produced water lines, be communicated with the product water interface (rapid-acting coupling C) of reverse osmosis seawater desalting module 14, the pipeline producing water orifice in reverse osmosis membrane group 9 and reverse osmosis seawater desalting module 14 arranges aftertreatment medicine system 10, and the product water interface of reverse osmosis seawater desalting module 14 is communicated with collapsible water storage bag 13 by pipeline; Another road is reverse osmosis concentrated water lines, is connected on pipeline that recycle pump 5 is communicated with reverse osmosis seawater desalting module 14 drainage interface.

By the external hose component film cleaning system of cleaning water tank 11, recycle pump 5, band rapid-acting coupling, the case bottom outlet of cleaning water tank 11 is connected with rapid-acting coupling A', and the top of cleaning water tank 11 is connected with rapid-acting coupling B', C', D'.Recycle pump 5 entrance pipe is equipped with rapid-acting coupling A, and ultra-filtration membrane group 4 export pipeline is equipped with rapid-acting coupling B.During cleaning ultra-filtration membrane group 4, first use hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, reverse osmosis produced water is loaded cleaning water tank 11, for follow-up cleaning.With hose connection rapid-acting coupling A-A' and B-B' of two end band rapid-acting couplings during cleaning, the cleaning of ultra-filtration membrane group 4 can be realized.During cleaning reverse osmosis membrane group 9, first use hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, reverse osmosis produced water is loaded cleaning water tank 11, for follow-up cleaning.Use hose connection rapid-acting coupling A-A' and D-D' of two end band rapid-acting couplings again, the cleaning of reverse osmosis membrane group 9 can be realized.Wherein, the connection of C, C' is disconnected when 1. cleaning ultra-filtration membrane group 4 and reverse osmosis membrane group 9; 2. clean ultrafiltration module 4: produce water and enter recycle pump 5 by the flexible pipe between A-A', then enter ultrafiltration module 4 by the pipeline M between recycle pump 5 and ultrafiltration module 4 and clean, the water after cleaning flows into cleaning water tank 11 by the flexible pipe between B-B'.3. clean reverse osmosis module 9: produce water and enter recycle pump 5 by the flexible pipe between A-A', then enter reverse osmosis module 9 by the pipeline N between recycle pump 5 and reverse osmosis module 9 and clean, the water after cleaning flows into cleaning water tank 11 by the flexible pipe between D-D'.

Reverse osmosis seawater desalting module 14 is intake, draining, product water interface adopt rapid-acting coupling one, rapid-acting coupling one is fixedly installed in modular end plate (trailer box end plate 1), and the joint form of rapid-acting coupling one is shown in accompanying drawing 5a.Reverse osmosis seawater desalting module 14, respectively by the rapid-acting coupling one of water inlet, draining, product water, realizes reverse osmosis seawater desalting module 14 and extraneous water pump 1, the connection of cleaning water tank 11, collapsible water storage bag 13.Adopt the flexible pipe of two end band rapid-acting couplings two to realize water pump 1 water outlet mouthpiece (rapid-acting coupling one) and modular end plate are intake the connection of interface (rapid-acting coupling one), the joint form of rapid-acting coupling two is shown in accompanying drawing 5b.Adopt the flexible pipe of two end band rapid-acting couplings two to realize getting collapsible water storage bag 13 to intake the connection of interface (rapid-acting coupling one) and modular end plate upper water-out interface (rapid-acting coupling one).

As shown in figs 2-4, reverse osmosis seawater desalting integration apparatus is made up of three parts, is followed successively by reverse osmosis seawater desalting module 14, storing module 15, motion module 16 from top to bottom.Reverse osmosis seawater desalting module 14 is made up of trailer box and trailer box interior reverse osmosis seawater desalting associated components, and the trailer box of reverse osmosis seawater desalting module 14 is combined (see Fig. 3) by left, right, front and rear, upper and lower position by trailer box end plate 1, trailer box end plate 2 19, trailer box wallboard 1, trailer box wallboard 2 20 and top board, base plate.Trailer box wallboard 1, opens the door that 0.6 meter, two fan is wide, as the operation window (see Fig. 2) of reverse osmosis seawater desalination system housing, oil electric engine 12 housing.Motion module 16 is the installation of whole portable sea water desalting equipment, mobile basis, and be made up of car puller hook 24, wheel 23, trailer support body 22, the bottom of trailer support body 22 arranges wheel 23, and one end of trailer support body 22 arranges car puller hook 24 (see Fig. 4).Reverse osmosis seawater desalting integration apparatus is unpowered towing mechanism, when need closely move, is hung on the movement that any vehicle can realize sea water desalting equipment by car puller hook 24.Storing module 15 on trailer support body 22, reverse osmosis seawater desalting module 14 times.When reverse osmosis seawater desalination system does not work, length distance transport time, for depositing all external hoses of reverse osmosis seawater desalting module 14, collapsible water storage bag, water pump, water pump floating drum etc.

As shown in Figure 4, on trailer box end plate 1, trailer box end plate 2 19, the symmetrical door opening 1.2 meters wide, passes in and out for maintenance of the equipment person respectively.The side in trailer box end plate 1 enabling hole is the control panel 21 of reverse osmosis seawater desalination system operation, and all tensimeters of reverse osmosis seawater desalination system, under meter, water inlet, draining, product water interface, water pump connection power supply, reverse osmosis (RO) dense water regulating valve door, the dense water regulating valve Men Jun of ultrafiltration (UF) concentrate on this control panel 21.

Whole reverse osmosis seawater desalination system is except water pump 1, external linkage pipeline, cleaning water tank 11, collapsible water storage bag 13, and armamentarium is all fixed in trailer box, is convenient to mobile use.Recycle pump 5, high-pressure pump 8, housing, oil electric engine 12 are fixedly connected with trailer box by bolt, and the putamina of reverse osmosis membrane group 9, ultra-filtration membrane group 4 is fixed on film frame, and film frame is connected with trailer box by bolt again.Aftertreatment medicine system 10, strainer 3 are fixed on steel structure support, and steel structure support is secured by bolts in trailer box again.

As Figure 1-Figure 5, working process of the present invention is as follows:

Seawater is pumped into reverse osmosis seawater desalting module 14 by water pump 1, the mesh gauze filter 3 that the seawater entering reverse osmosis seawater desalting module 14 enters through flexible pipe, removes the tiny grains of sand of more than 50 μm, planktonic organism, algae, suspended substance.Mesh gauze filter 3 is pretreatment units of ultra-filtration membrane group 4, ensures the normal operation of ultra-filtration equipment.Before seawater enters mesh gauze filter 3, sterilant chemicals dosing plant 2 adds sterilant in the duct, and sterilant (as: clorox) adopts and is installed on the Homogeneous phase mixing that ducted static mixer realizes medicament and process seawater.After mesh gauze filter 3, seawater enters ultra-filtration membrane group 4.Ultra-filtration membrane in ultra-filtration membrane group 4 is rolling ultrafiltration membrane, horizontal layout, is arranged in the normal glass steel membrane shell of reverse osmosis membrane, forms ultra-filtration membrane group by membrane element series connection, membrane module parallel connection.The seawater entered in ultra-filtration membrane group 4 adopts continuous cross-flow to filter, cross flow filter makes suspended solid in seawater along film surface flow, form fluid shear condition on the surface of the film, thus make pollutent be difficult at film surface sediment, extend the Membrane cleaning cycle, cleaning in 3 ~ 6 months once, makes film obtain long-term metastable water-yielding capacity within the cleaning interval simultaneously.

In ultrafiltration membrane elements water inlet be divided into by ultra-filtration membrane, only containing small-molecule substance and soluble solid (inorganic salt) product water (title ultrafiltrated permeation liquid) and do not pass through ultra-filtration membrane, containing the high dense water of ultrafiltration (the dense water of UF) of colloid, protein, microorganism and larger molecular organics concentration.Wherein, reverse osmosis membrane group 9 (RO film group) is entered by the ultrafiltrated permeation liquid of ultra-filtration membrane, all do not enter recycle pump 5 by the dense water of the ultrafiltration of ultra-filtration membrane, after the dense water of ultrafiltration flows out from recycle pump 5, part ultrafiltration dense water and with from water pump 1, enter ultra-filtration membrane group 4 through the former seawater of disinfection filtering, another part ultrafiltration concentrated water drainage goes out outside reverse osmosis seawater desalting module 14.The ultrafiltration system rate of recovery can reach more than 90%, by regulating the ratio of ultrafiltration dense water regulating valve water production control and dense water, namely controls the rate of recovery of ultra-filtration membrane group.Discharge the dense water yield governor valve control of ultrafiltration outside reverse osmosis seawater desalting module 14, shown by spinner-type flowmeter, the spinner-type flowmeter of the dense water of ultrafiltration is arranged on outside trailer box end plate.The handle of variable valve is arranged on outside trailer box end plate, and the valve body of corresponding variable valve is stayed in casing, namely inside trailer box end plate.

Before entering reverse osmosis membrane group 9 by the ultrafiltrated permeation liquid of ultra-filtration membrane group 4; reductive agent need be added by reductive agent medicine system 6; realize the effect of removing chlorine residue in water, protection reverse osmosis membrane, reductive agent adopts static mixer to realize the Homogeneous phase mixing of medicament and process water.The ultrafiltrated permeation liquid removing chlorine residue need add Scale inhibitors by Scale inhibitors medicine system 7; realize protection reverse osmosis membrane, prevent the effect of film fouling; Scale inhibitors adopts static mixer to realize medicament and the Homogeneous phase mixing processing water, and the ultrafiltrated permeation liquid adding Scale inhibitors boosts continuously through high-pressure pump 8 pump and pumps into reverse osmosis membrane group 9.Reverse osmosis membrane in reverse osmosis membrane group 9 is coiled reverse osmosis membrane, horizontal layout, is arranged in the normal glass steel membrane shell of reverse osmosis membrane, forms reverse osmosis membrane group by membrane element series connection, membrane module parallel connection.

Enter the ultrafiltrated permeation liquid of reverse osmosis membrane group 9, be divided in reverse-osmosis membrane element by reverse osmosis membrane, containing soluble solid (inorganic salt) low or purer product water (title penetrating fluid) and by reverse osmosis membrane, containing the high reverse osmosis concentrated water (the dense water of RO) of soluble solid (inorganic salt) concentration.By the collapsible water storage bag 13 of penetrating fluid outside reverse osmosis produced water tube hose inflow reverse osmosis seawater desalting module 14 of reverse osmosis membrane group 9.The water inlet interface of collapsible water storage bag 13 is rapid-acting coupling one, and rapid-acting coupling one form is as Fig. 5 a.Reverse osmosis produced water first flows through the product water interface (rapid-acting coupling one) of reverse osmosis seawater desalting module 14, again by the flexible pipe of two end band rapid-acting couplings two (rapid-acting coupling two form is as Fig. 5 b), connect the water inlet interface of described product water interface and collapsible water storage bag 13, make reverse osmosis produced water flow into collapsible water storage bag 13.All do not discharge outside reverse osmosis seawater desalting module 14 by the reverse osmosis concentrated water of reverse osmosis membrane, discharge the reverse osmosis concentrated water yield governor valve control outside reverse osmosis seawater desalting module 14, shown by spinner-type flowmeter.The handle of variable valve is arranged on outside trailer box end plate, and corresponding valve body is stayed in casing, and namely inside end plate, the spinner-type flowmeter of reverse osmosis concentrated water is arranged on outside trailer box end plate.By the ratio regulating reverse osmosis concentrated water governor valve control to produce water and dense water, namely control the rate of recovery of reverse osmosis membrane group.The drainage interface of the drainage interface of reverse osmosis concentrated water and the dense water of ultrafiltration shares, reverse osmosis concentrated water and ultrafiltration concentrated stream are through the drainage interface (rapid-acting coupling one) of reverse osmosis seawater desalting module 14, the drainage interface form of reverse osmosis seawater desalting module 14 is shown in accompanying drawing 5a, the drainage interface of reverse osmosis seawater desalting module 14 and the concentrated water discharge of an end band rapid-acting coupling two (see accompanying drawing 5b) hose connection, the concentrated water discharge flexible pipe the other end is positioned over specific drainage point, and concentrated water drainage is gone out outside reverse osmosis seawater desalting module 14.

After ultra-filtration membrane group 4, reverse osmosis membrane group 9 run for some time, the cleaning of ultra-filtration membrane and reverse osmosis membrane need be carried out.Membrane cleaning system is by cleaning water tank 11, recycle pump 5, being with the external hose of rapid-acting coupling to form, the case bottom outlet of cleaning water tank 11 is connected with rapid-acting coupling A', the top of cleaning water tank 11 is connected with rapid-acting coupling B', C', D', and the joint form of rapid-acting coupling A', B', C', D' is accompanying drawing 5a.Recycle pump 5 entrance pipe is equipped with rapid-acting coupling A, and ultra-filtration membrane group 4 export pipeline is equipped with rapid-acting coupling B, and the joint form of rapid-acting coupling A, B is accompanying drawing 5a.During normal operation, rapid-acting coupling A, B structure formation is that the rapid-acting coupling of Fig. 5 b seals.During cleaning ultra-filtration membrane group 4, with hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings (structure formation is Fig. 5 b), reverse osmosis produced water is loaded cleaning water tank 11.Use hose connection rapid-acting coupling A-A' and B-B' of two end band rapid-acting couplings (structure formation is Fig. 5 b) again, the cleaning of ultra-filtration membrane group can be realized.During cleaning reverse osmosis membrane group 9, with hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings (structure formation is Fig. 5 b), reverse osmosis produced water is loaded cleaning water tank 11.Use hose connection rapid-acting coupling A-A' and D-D' of two end band rapid-acting couplings (structure formation is Fig. 5 b) again, the cleaning of reverse osmosis membrane group can be realized.

The unlatching of whole reverse osmosis seawater desalination system, operation adopt PLC system to realize automatically controlling routinely.During reverse osmosis seawater desalination system conventional operation, reverse osmosis seawater desalination system is set to all automatically, and reverse osmosis seawater desalination system can realize fully automatic operation without the need to manual operation.During reverse osmosis seawater desalination system cleaning, only recycle pump 5 need be adjusted to manually, after pipeline has connected, starting recycle pump 5 can complete cleaning.When PLC system detects that certain Testing index of reverse osmosis seawater desalination system is abnormal, send a signal to warning, simultaneously by fault cause and position display on operating display curtain, after relating operation personnel receive PLC system warning, pointed out abnormal correction according to PLC system, reverse osmosis seawater desalination system can normally run after resetting.When reverse osmosis seawater desalination system does not work, disconnect the connection of external pipeline and reverse osmosis seawater desalination system, and seal system water inlet, draining, product water swivel with rapid-acting coupling (see accompanying drawing 5b).

In the present invention, relational language is explained as follows:

(1) in membrane sepn field, divide by separation accuracy and mainly contain micro-filtration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) four kinds of isolation technique.Their separating mechanism be former water under pressure-driven, according to the difference in membrane sepn aperture, the material tunicle being greater than membrane pore size retains, and is less than the material permeance film of membrane pore size, thus reaches the object of separation.

(2) ultra-filtration technique: almost can retain completely the suspended substance in water, colloid, macromolecular substance, bacterium etc., to the clearance of BOD and COD 20% ~ 60%, retains hardly to small organic molecule and mineral ion.Utilize ultra-filtration membrane can the characteristic of separate substance, the pollution substance in water can be removed by ultrafiltration, the film of special pore size distribution also can be utilized to be extract by some composition in liquid.

(3) rolled film: film, propping material, intermembranous barrier material are folded successively, around a pipe core roll tightly a film group.Feed liquid is flowed by interval insulant vertically on film surface, and permeate is along spiral current to pipe core.Rolled membrane module Application comparison is extensive, and its equipment is compact, and the membrane area in unit volume is large, and turbulent flow conditions is good, and diaphragm crushing resistance is stronger.

(4) reverse osmosis technology: reverse osmosis is the most accurate embrane method liquid separation technology, it can stop the organism that all solvability salt and molecular weight are greater than 100, but allow water molecules through, cellulose acetate reverse osmosis film ratio of desalinization generally can be greater than 95%, and reverse osmosis composite membrane ratio of desalinization is generally greater than 98%.They are widely used in seawater and brackish water desalination, oiler feed, industrial pure water and electronic grade ultrapure water preparation, purified drinking water is produced, and the process such as wastewater treatment and special separation, uses reverse osmosis can reduce process cost and wastewater discharge significantly before ion-exchange.

(5) membrane element: by diaphragm and inlet conduit grid, produce water flow passage material, produce water pipe core and resistance to stress device etc. and stick with glue agent etc. and fit together, the minimum unit of the reverse osmosis process separated with product water that can realize intaking is called membrane element;

(6) membrane module: membrane element is arranged on the pressure vessel enclosure interior formation membrane module be stressed;

(7) penetrating fluid: water is produced in the purification produced through membranous system.

(8) flow: flow refers to the water inlet flow rate entering membrane element, often with cubic meter (m per hour ³/ h) or gallons per minute represent (gpm).Concentrated stream amount refer to leave membrane element system not through " water inlet " flow of the part of film.This part dense water contains the component of the solubility of bringing into from Yuan Shui water source, often with cubic meter (m per hour ³/ h) or gallons per minute represent (gpm).

(9) flux: with the flow rate of per membrane area permeate, rises (l/m with every square metre per hour usually ²h) or every day every square feet gallon represent (gfd).

(10) strong solution: not through the part solution of film, as: the condensed water of reverse osmosis system.

(11) dead-end filtration: make again full dose filter, during filtration, former water enters from membrane module one end, all flows out through after ultra-filtration membrane.Do not have concentrated solution to discharge during dead-end filtration, pollutent is all trapped within film surface, can only be discharged by regular back flushing.This operating method is applicable to good influent quality, and energy consumption is lower.

(12) cross flow filter: the concentrated liquid of some is drained from the other end of ultra-filtration membrane when filtering, when the material concentration that energy tunicle in stoste retains is very high, the filtration resistance of film increases very fast, now adopts cross flow filter more.Cross flow filter, because there is concentrated solution to discharge, can forms larger shearing force on film surface, effectively reduce the pollution of film.The concentrated stream amount of cross flow filter is reflux ratio with the ratio of product discharge, for poor water quality, can select higher reflux ratio, to alleviate the pollution of film; Concentrated solution gets back to raw water box or pretreated entrance, reenters ultrafiltration system and carries out filtration treatment, also can increase recycle pump and concentrated solution is circulated.

Embodiment result shows, compare with other prior aries with Chinese utility model patent (publication number is CN201056504Y), advantage of the present invention is as follows:

(1) present device adopts trailer-type design, equipment volume little (3600mm × 1800mm × 2300mm), lightweight (only 4 tons), car body is unpowered towing mechanism, when need closely move, car puller hook is hung on the short-distance movement that any vehicle can realize sea water desalting equipment; When needing remote mobile, available small-sized clamshell car can realize long-distance transportation, and easily realizes the air transport of equipment, land transportation, shipping.

(2) present device adopts rolling ultrafiltration membrane as the pre-treatment of reverse osmosis, and continuous cross-flow filters, cleaning frequency is low, only needs within 3 ~ 6 months, clean once, and system operation maintenance is simple, it is easy to learn to facilitate.

(3) present device saves the cleaning system of hyperfiltration membrane assembly, reverse osmosis membrane assembly, do not increase extra scavenging pump, detergent line, the cleaning of RO film and UF film can be realized, realize the efficiency utilization of external pipeline, reduction equipment, pipeline investment expense, Simplified flowsheet, reduces artificial running maintenance frequency.

(4) present device reverse osmosis part does not have energy recycle device, topping-up pump, pressure piping between connection energy recycle device and topping-up pump, be more suitable for miniature movable type seawater desalination system, reduce equipment investment cost, the comprehensive cost performance of service system.

(5) present device adopts oil electric engine, reverse osmosis seawater desalination system in remote districts, normally can be worked under disengaging grid condition, solve fresh water from far-off regions and obtain the large problem of difficulty.

Claims

1. the reverse osmosis seawater desalting integration apparatus that a modularization is movable, it is characterized in that, this equipment has reverse osmosis seawater desalination system, reverse osmosis seawater desalination system comprises: water pump, sterilant chemicals dosing plant, strainer, ultra-filtration membrane group, recycle pump, reductive agent chemicals dosing plant, Scale inhibitors chemicals dosing plant, high-pressure pump, reverse osmosis membrane group, aftertreatment medicine system, collapsible water storage bag, all be fixedly installed in trailer box except water pump, collapsible water storage bag, whole trailer box is referred to as reverse osmosis seawater desalting module, and concrete structure is as follows:

2. according to the reverse osmosis seawater desalting integration apparatus that modularization according to claim 1 is movable, it is characterized in that, reverse osmosis seawater desalination system also comprises the cleaning water tank be positioned at outside reverse osmosis seawater desalting module, by the external hose component film cleaning system of cleaning water tank, recycle pump, band rapid-acting coupling, the case bottom outlet of cleaning water tank is connected with rapid-acting coupling A', and the top of cleaning water tank is connected with rapid-acting coupling B', C', D'; Pump entry pipeline is equipped with rapid-acting coupling A, ultra-filtration membrane group export pipeline is equipped with rapid-acting coupling B, and the product water interface of reverse osmosis seawater desalting module is rapid-acting coupling C, and the drainage interface of reverse osmosis seawater desalting module is rapid-acting coupling D; During cleaning ultra-filtration membrane group, adopt hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, adopt hose connection rapid-acting coupling A-A' and B-B' of two end band rapid-acting couplings; During cleaning reverse osmosis membrane group, adopt hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, adopt hose connection rapid-acting coupling A-A' and D-D' of two end band rapid-acting couplings.

3. according to the reverse osmosis seawater desalting integration apparatus that modularization according to claim 1 is movable, it is characterized in that, reverse osmosis seawater desalination system also comprises the generator be positioned at inside reverse osmosis seawater desalting module, and the electrical equipment that generator is respectively in reverse osmosis seawater desalination system is powered.

4. according to the reverse osmosis seawater desalting integration apparatus that modularization according to claim 1 is movable, it is characterized in that, the interface of the water inlet of reverse osmosis seawater desalting module, draining, product water adopts rapid-acting coupling, described rapid-acting coupling is fixedly installed in reverse osmosis seawater desalting modular end plate, reverse osmosis seawater desalting module, respectively by the rapid-acting coupling of water inlet, draining, product water, makes reverse osmosis seawater desalting module with extraneous water pump, cleans water tank, collapsible water storage bag is connected; Adopt interface that the hose connection water pump water outlet mouthpiece of two end band rapid-acting couplings and modular end plate intake, adopt hose connection collapsible water storage bag water inlet interface and the modular end plate upper water-out interface of two end band rapid-acting couplings.

5. according to the reverse osmosis seawater desalting integration apparatus that modularization according to claim 1 is movable, it is characterized in that, reverse osmosis seawater desalting integration apparatus sets gradually reverse osmosis seawater desalting module, storing module, motion module from top to bottom, wherein: motion module is the installation of whole portable sea water desalting equipment, mobile basis, be made up of car puller hook, wheel, trailer support body, the bottom of trailer support body arranges wheel, and one end of trailer support body arranges car puller hook; Storing module on trailer support body, under reverse osmosis seawater desalting module; Reverse osmosis seawater desalting module is made up of trailer box and trailer box interior reverse osmosis seawater desalting parts, and the trailer box of reverse osmosis seawater desalting module is combined by left, right, front and rear, upper and lower position by trailer box end plate one, trailer box end plate two, trailer box wallboard one, trailer box wallboard two and top board, base plate.

6. according to the reverse osmosis seawater desalting integration apparatus that modularization according to claim 1 is movable, it is characterized in that, ultra-filtration membrane in ultra-filtration membrane group is rolling ultrafiltration membrane, horizontal layout, be arranged in the normal glass steel membrane shell of reverse osmosis membrane, form ultra-filtration membrane group by membrane element series connection, membrane module parallel connection; Reverse osmosis membrane in reverse osmosis membrane group is coiled reverse osmosis membrane, horizontal layout, is arranged in the normal glass steel membrane shell of reverse osmosis membrane, forms reverse osmosis membrane group by membrane element series connection, membrane module parallel connection.

7. a using method for the reverse osmosis seawater desalting integration apparatus that the modularization that one of claim 1 to 6 is described is movable, it is characterized in that, the process that reverse osmosis seawater desalination system uses is as follows:

8., according to the using method of the movable reverse osmosis seawater desalting integration apparatus of modularization according to claim 7, it is characterized in that, after ultra-filtration membrane group, reverse osmosis membrane group run for some time, carry out the cleaning of ultra-filtration membrane and reverse osmosis membrane; Membrane cleaning system by clean water tank, recycle pump, band rapid-acting coupling external hose form, cleaning water tank case bottom outlet be connected with rapid-acting coupling A', cleaning water tank top be connected with rapid-acting coupling B', C', D'; Pump entry pipeline is equipped with rapid-acting coupling A, ultra-filtration membrane group export pipeline is equipped with rapid-acting coupling B, and the product water interface of reverse osmosis seawater desalting module is rapid-acting coupling C, and the drainage interface of reverse osmosis seawater desalting module is rapid-acting coupling D; During normal operation, rapid-acting coupling A, B rapid-acting coupling seals; During cleaning ultra-filtration membrane group, with hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, reverse osmosis produced water is loaded cleaning water tank, then use hose connection rapid-acting coupling A-A' and B-B' of two end band rapid-acting couplings, realize the cleaning of ultra-filtration membrane group, during cleaning, disconnect the connection of C, C'; During cleaning reverse osmosis membrane group, with hose connection rapid-acting coupling C, C' of two end band rapid-acting couplings, reverse osmosis produced water is loaded cleaning water tank, then use hose connection rapid-acting coupling A-A' and D-D' of two end band rapid-acting couplings, realize the cleaning of reverse osmosis membrane group, during cleaning, disconnect the connection of C, C'; Cleaning ultrafiltration module: produce water and enter recycle pump by the flexible pipe between A-A', then enter ultrafiltration module by the pipeline between recycle pump and ultrafiltration module and clean, the water after cleaning flows into cleaning water tank by the flexible pipe between B-B'; Cleaning reverse osmosis module: produce water and enter recycle pump by the flexible pipe between A-A', then enter reverse osmosis module by the pipeline between recycle pump and reverse osmosis module and clean, the water after cleaning flows into cleaning water tank by the flexible pipe between D-D';

9. according to the using method of the movable reverse osmosis seawater desalting integration apparatus of modularization according to claim 7, it is characterized in that, the unlatching of whole reverse osmosis seawater desalination system, run and adopt PLC system to realize automatically controlling; During reverse osmosis seawater desalination system conventional operation, reverse osmosis seawater desalination system is set to all automatically, and reverse osmosis seawater desalination system can realize fully automatic operation without the need to manual operation; During reverse osmosis seawater desalination system cleaning, be adjusted to by recycle pump manually, after pipeline has connected, starting recycle pump can complete cleaning; When PLC system detects that certain Testing index of reverse osmosis seawater desalination system is abnormal, send a signal to warning, simultaneously by fault cause and position display on operating display curtain, after relating operation personnel receive PLC system warning, pointed out abnormal correction according to PLC system, reverse osmosis seawater desalination system can normally run after resetting; When reverse osmosis seawater desalination system does not work, disconnect the connection of external pipeline and reverse osmosis seawater desalination system, and seal system water inlet, draining, product water swivel with rapid-acting coupling.

10. according to the using method of the movable reverse osmosis seawater desalting integration apparatus of modularization according to claim 7, it is characterized in that, discharge the dense water yield governor valve control of ultrafiltration outside reverse osmosis seawater desalting module, shown by spinner-type flowmeter, the spinner-type flowmeter of the dense water of ultrafiltration is arranged on outside trailer box end plate; The handle of variable valve is arranged on outside trailer box end plate, and the valve body of corresponding variable valve is stayed in casing, namely inside trailer box end plate; Discharge the reverse osmosis concentrated water yield governor valve control outside reverse osmosis seawater desalting module, shown by spinner-type flowmeter; The handle of variable valve is arranged on outside trailer box end plate, and corresponding valve body is stayed in casing, and namely inside end plate, the spinner-type flowmeter of reverse osmosis concentrated water is arranged on outside trailer box end plate.