CN203833678U - Reverse osmosis device and reverse osmosis water treatment system applied to treatment of high-concentration wastewater - Google Patents

Reverse osmosis device and reverse osmosis water treatment system applied to treatment of high-concentration wastewater Download PDF

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Publication number
CN203833678U
CN203833678U CN201420090142.7U CN201420090142U CN203833678U CN 203833678 U CN203833678 U CN 203833678U CN 201420090142 U CN201420090142 U CN 201420090142U CN 203833678 U CN203833678 U CN 203833678U
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China
Prior art keywords
reverse osmosis
laminar flow
sewage
low temperature
assembly
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CN201420090142.7U
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Chinese (zh)
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刘阳
舒淼
高青松
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Changsha Well-Point Environment Protection Science & Technology Co Ltd
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Changsha Well-Point Environment Protection Science & Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model discloses a reverse osmosis device and a reverse osmosis water treatment system applied to treatment of high-concentration wastewater. The reverse osmosis device comprises a membrane shell and a connection rod which is arranged in the center of the membrane shell; a wastewater inlet, an osmosis liquid outlet and a concentrated liquid outlet are formed in a connection flange and a tail end flange which are hermetically connected to two ends of the membrane shell; a plurality of laminar flow discs and a filtration membrane assembly are sleeved on the connecting rod; an osmosis liquid channel is formed between the laminar flow discs and the connection rod and communicated with the osmosis liquid outlet; an opening in the inner side of the filtration membrane assembly is communicated with the osmosis liquid channel; a plurality of strip-shaped flow dividing holes are uniformly formed in the parts, which are adjacent to central holes, of the laminar flow discs; spoke-shaped flow guide channels are formed in the surfaces of the laminar flow discs in the radiation direction of the strip-shaped flow dividing holes. The reverse osmosis water treatment system comprises a treatment device for evaporating high-concentration wastewater at the low temperature and the reverse osmosis device; the treatment device comprises a wastewater preheating assembly, an air preheating assembly, a low-temperature plate type evaporation device and a recycling assembly. The reverse osmosis device and the reverse osmosis water treatment system applied to treatment of the high-concentration wastewater have the advantages of high wastewater treatment efficiency, high water production rate, good water production effect, low energy consumption, long service life of the membrane and the like.

Description

For reverse osmosis unit and the reverse osmosis treatment system of high-concentration sewage processing
Technical field
The utility model belongs to high-concentration sewage process field, is specifically related to a kind of reverse osmosis unit for high-concentration sewage processing and reverse osmosis treatment system that utilizes hydromeehanics hydraulic principle to research and develop to form.
Background technology
In recent years, many new technologies are being applied to high-concentration sewage processing, as obtained development rapidly in percolate processing.The application that the good class of application trend is membrane technique at present, comprises microfiltration membrane, ultra-filtration membrane, nanofiltration membrane and reverse osmosis membrane etc.Adopting the advantage of membrane technique is that effluent quality is better, can reach higher emission request.But disc tube reverse osmosis (dt-ro) of the prior art (DTRO) film system, its flow guiding disc surface is provided with convex dot shape structure as flow-guiding structure, and as shown in Figure 6, this structure easily makes waterpower carry out burst diffusion, causes system capacity loss to increase; And its diaphragm shapes is circular, as shown in Figure 7, easily causes local pressure to cross ambassador's diaphragm and is penetrated infringement.
Generally speaking, affected by different factors, in operation process, energy consumption is higher, producing water ratio is lower, outlet effect is unstable for membrane treatment appts of the prior art, service life of equipment is shorter, be subject to the restriction of these defects, there is certain bottleneck in membrane technology in the time being applied to the processing of the high-concentration sewages such as percolate.Therefore, find that a kind of processing efficiency is higher, producing water ratio is high, outlet effect is good, energy consumption is low, the device for treatment of high-concentration dirt water of diaphragm longer service life seems particularly urgent.
Utility model content
Technical problem to be solved in the utility model is: for the deficiencies in the prior art, provide a kind of simple and compact for structure, sewage treating efficiency is high, producing water ratio is high, outlet effect is good, energy consumption is low, the reverse osmosis unit for high-concentration sewage processing of filtering membrane long service life and reverse osmosis treatment system.
For solving the problems of the technologies described above, the utility model is realized by the following technical solutions:
A kind of reverse osmosis unit for high-concentration sewage processing, comprise tubular putamina and the union lever of being located at putamina center, sealed at both ends joint flange and the end flange of being connected with of putamina, on joint flange, offer sewage inlet, see through liquid outlet and concentrated solution outlet, putamina inner chamber is arranged with multilayer layer flow table on union lever, between adjacent layers flow table, be sealedly connected with filter membrane component, between multilayer layer flow table and union lever, be provided with to be communicated to and see through liquid passage through liquid outlet, sewage inlet is communicated with putamina inner bottom part by the clearance channel between laminar flow dish periphery and putamina, the outward flange closure of described filter membrane component, and preglabellar field is opening-like to be communicated to through liquid passage, between described filter membrane component and each laminar flow dish, form sewage laminar flow channel, multiple by the long strip shape tap holes of sewage laminar flow channel connection along being circumferentially evenly equipped with near its central hole on described laminar flow dish, described laminar flow panel surface offers some spoke-like flow-guiding channels along the radiation direction of aforementioned long strip shape tap hole.
Further improvement as to the utility model reverse osmosis unit: be provided with a distributing damper near the outer peripheral position of laminar flow dish in described spoke-like flow-guiding channel, described distributing damper is 1/4~1/2 of laminar flow dish radius length along the length of laminar flow disc radial, and described distributing damper is divided the open area of spoke-like flow-guiding channel equally substantially.
In above-mentioned reverse osmosis unit, preferred, described filter membrane component is three layers of sandwich ring structure, comprises the reverse osmosis membrane of two-layer concentric setting and is located in thread support therebetween, more preferably pile fabric sheet of described thread support.The outward flange of described reverse osmosis membrane and thread support is integrally welded.The outline of described filter membrane component is preferably octagon.
In above-mentioned reverse osmosis unit, preferred, the centre hole edge of described laminar flow dish offers multiple radial indentation, and the radial indentation on each laminar flow dish is interconnected and forms the described liquid passage that sees through; On described union lever, be equiped with seeing through collection and by the fastening nuts on union lever, describedly seeing through liquid outlet and be opened in described collection one side that sees through of hollow in joint flange top.
In above-mentioned reverse osmosis unit, preferred, after superposeing mutually, described multilayer layer flow table forms tubular layer flow table assembly at putamina inner chamber, between laminar flow dish assembly and putamina inwall, be provided with a vertical feed pathway being communicated with described sewage inlet; The upper end of laminar flow dish assembly is fixed in joint flange, lower end and the spaced apart formation bottom liquid inlet of end flange passage, described filter membrane component inserts in the sewage laminar flow channel forming between each laminar flow dish and makes sewage pass through each sewage laminar flow channel from bottom to top with zigzag.Preferred, the spacing on the upper and lower surface of adjacent two layers flow table is h, and h is preferably 3mm.
In above-mentioned reverse osmosis unit, preferred, on described union lever, be equiped with the Sealed casing pipe for support base laminar flow dish in end flange top, on union lever, be equiped with union lever pad in end flange below and by the fastening nuts on union lever.Between described joint flange, end flange and putamina, be tightly connected by lip-type packing; Between described laminar flow dish and filtering film component, be all tightly connected by O-ring seals.
As a total technical conceive, the utility model also provides a kind of reverse osmosis treatment system for high-concentration sewage processing, comprise the treatment unit of a low-temperature evaporation high-concentration sewage and above-mentioned reverse osmosis unit, the treatment unit of described low-temperature evaporation high-concentration sewage comprises sewage preheating assembly, preheating of air assembly, low temperature plate type evaporating apparatus and recovery assembly, and described sewage preheating assembly, preheating of air assembly are communicated to respectively sewage entrance end and the hot-air inlets end of low temperature plate type evaporating apparatus, described low temperature plate type evaporating apparatus is multi-layer plate-type structure, and be mainly laminated by multi-layer evaporation plate, the sewage that makes to enter in low temperature plate type evaporating apparatus by the flow control component in sewage preheating assembly forms continuous laminar flow shape liquid film from top to bottom on multi-layer evaporation plate, the warm air that makes to enter in low temperature plate type evaporating apparatus by preheating of air assembly forms continuous upstream from bottom to top between multi-layer evaporation plate, described continuous upstream and continuous laminar flow shape liquid film counter current contact, described low temperature plate type evaporating apparatus top is provided with and the hot air outlet that reclaims assembly and be communicated with, described low temperature plate type evaporating apparatus bottom is provided with sewage outlet, described recovery assembly is communicated with formation circulation with the bottom of low temperature plate type evaporating apparatus by pipeline, the concentrated solution outlet of described reverse osmosis unit is communicated with the entrance end of described sewage preheating assembly.
In above-mentioned reverse osmosis treatment system, preferred, described multi-layer evaporation plate is arranged to impel continuous laminar flow shape liquid film with the descending guiding decoration form of S shape mode; Described continuous upstream rises and continuous laminar flow shape liquid film counter current contact in S shape mode.
In above-mentioned reverse osmosis treatment system, preferred, in described multi-layer evaporation plate, the lower surface of every one deck evaporation plate is arranged to impel continuous upstream to form lenticular dentation or the wavy structure of local turbulence turbulent flow.
In above-mentioned reverse osmosis treatment system, preferably, in described multi-layer evaporation plate, one end of every one deck evaporation plate is inboardend, the other end is effluent head, described effluent head is provided with an over-pass, the height of the overflow weir of offering on the height by controlling water kick baffle plate or over-pass, makes the thickness of liquid film of continuous laminar flow shape liquid film in every one deck evaporation plate present the form of successively decreasing step by step from top to down.
In above-mentioned reverse osmosis treatment system, preferably, described multi-layer evaporation plate is arranged to drawer type composite module structure, each drawer be one can free assembly and disassembly composite module, each drawer is made up of one deck evaporation plate at least, and multiple drawers superpose up and down and form the agent structure of described multi-layer evaporation plate.
In above-mentioned reverse osmosis treatment system, preferably, the cavity volume in described low temperature plate type evaporating apparatus is separated into evaporation cavity and condensation recycling cavity, and evaporation cavity is located at middle part, condensation recycling cavity is located at the periphery of evaporation cavity, and described sewage entrance end is directly communicated to the top of evaporation cavity; Described low temperature plate type evaporating apparatus top is provided with phlegma is guided to the condenser in condensation recycling cavity.
In above-mentioned reverse osmosis treatment system, preferably, the internal surface at described low temperature plate type evaporating apparatus top is arranged to coniform, described condenser is water cooled condenser, this water cooled condenser is located between cone shape internal surface and the outer wall of low temperature plate type evaporating apparatus, the bottom of condensation recycling cavity offers condensate outlet, and condensate outlet is by pipeline communication to phlegma liquid storage tank.Preferred, described phlegma liquid storage tank is mainly made up of the outlet sump two portions after back pool and backwater cooling, described outlet sump is the water-in to described water cooled condenser by pipeline communication, and the water outlet of water cooled condenser and condensate outlet are all by extremely aforementioned back pool of pipeline communication.
In above-mentioned reverse osmosis treatment system, preferred, described sewage preheating assembly and preheating of air assembly share a set of thermal source plenum system, and described thermal source plenum system comprises heating unit and heating pipe line, fills heat-transfer medium in heating pipe line; Described sewage preheating assembly comprises sewage preheating pond, heating pipe line extends to heat supply in sewage preheating pond, described heating pipe line also extends to a Heating pool, described preheating of air assembly comprises gas blower, air delivery pipe road and air flow controller, and air delivery pipe road extends in described Heating pool to preheating of air.
In above-mentioned reverse osmosis treatment system, preferably, described recovery assembly comprises steam-water separation tank, induced draft fan and exhaust gas cleaner (preferred light catalytic oxidation deodorizing device), and described hot air outlet is connected after upper steam-water separation tank and induced draft fan and is communicated to exhaust gas cleaner by pipeline, and described recovery assembly is communicated with formation and circulates with low temperature plate type evaporating apparatus.
Compared with prior art, the reverse osmosis unit for high-concentration sewage processing of the present utility model has following significant advantage:
1, film fouling and the contamination phenomenon of minimum level: possess wider (more than 3mm) open wide runner and unique laminar flow dish with spoke-like flow-guiding channel in the utility model, feed liquid forms turbulence state in assembly, has reduced to the full extent the generation of film surface scale, pollution and concentration polarization phenomenon.
2, film long service life: the utility model can effectively be avoided the fouling of filter membrane component, film pollutes and alleviates, and makes the life of filtering membrane.Special structure and Hydraulic design make film group be easy to clean, and after cleaning, flux recovery is very good, thereby has extended the diaphragm life-span.
3, assembly is easy to safeguard: the filter membrane component in the utility model adopts standardized designs, assembly is easy to demolition and maintenance, open the easily any a slice filtering membrane of Inspection and maintenance and other parts of assembly, easy to maintenance, in the time that amount of parts is inadequate, assembly allows to fill less some filtering membranes and laminar flow dish and does not affect the use of filter membrane component, and this is that other form membrane module is beyond one's reach.Because the inner any single parts of device of the present utility model all allow independent replacing, filtration fraction is assembled by multiple filter membrane components and laminar flow dish, in the time that need changing, filter membrane component can carry out single replacing, still can continue to use for the good diaphragm of strainability, this has reduced and has changed film cost in maximum program, and this is that other form membrane module such as rolling, tubular fibre is beyond one's reach.
4,, while utilizing the utility model to process high-concentration sewage, its relatively traditional biochemical process not only effluent quality is good, and every pollutent is all had to high clearance; And stable water outlet, affected by extraneous factor little, owing to affecting, the factor of film system rejection is less, so system effluent quality is very stable, is not subject to the impact of the factor such as biodegradability, carbon-nitrogen rate.
Generally speaking, the reverse osmosis unit for high-concentration sewage processing of the present utility model, simple and compact for structure, only on existing disc tube reverse osmosis (dt-ro) basis, structure and the shape to laminar flow dish and filter membrane component changes, and forms and has spoke-like flow-guiding channel.In the time that sewage flows in filter assemblies, can form turbulent flow, at utmost reduce the generation of film surface scale, pollution and concentration polarization phenomenon, make filter membrane component be easy to clean, after cleaning, flux recovery is very good, has greatly extended the work-ing life of filter membrane; Filter membrane component in this device adopts standardized designs, is easy to demolition and maintenance, and single parts all allow independent replacing, and replacement charge and working cost are low; And the reverse osmosis membrane in the utility model all has high clearance to every pollutent, effluent quality is good, water conditioning; This plant area area is little, the construction period is short, level of automation is high, operates very flexibly, can move continuously, also can intermittent operation, and series-parallel system that can also adjustment System, adapts to the requirement of water quality and quantity.
In addition, reverse osmosis system for high-concentration sewage processing of the present utility model has mainly utilized efficient cryogenic evaporation technique, it simulates " typhoon effect ", utilize saturated steam to meet cold condensation heat regional area above low temperature plate type evaporating apparatus and form negative pressure, and then produce a kind of natural pulling force and make the warm air of low temperature plate type evaporating apparatus bottom constantly increase in a steady stream; By reclaiming the connection of assembly, can make warm air at low temperature plate type evaporating apparatus and reclaim between assembly to form closed loop again, move in circles, thereby efficiently utilize air waste heat, realize the moisture in efficient cryogenic evaporation sewage.These reverse osmosis system energy-conserving and environment-protective, by utilizing " seawater is evaporated brine " principle, can under low temperature (40 DEG C~60 DEG C) state, evaporate sewage, compared with traditional high temperature (100 DEG C~120 DEG C) distillating method, not only energy-conservation, and environmental protection, in water of condensation, the content of objectionable impurities is low, meet national grade one discharge standard, do not need again to process and can discharge.
Reverse osmosis system for high-concentration sewage processing of the present utility model, not only vaporization efficiency is high, by utilize lenticular dentation or the wavy structure of drawer type evaporation plate bottom in preferred technical scheme, upstream is met obstructions and form local turbulence formula partial circulating, force upstream and liquid film multiple-contact, significantly improve the vaporization efficiency under low-temperature condition; By adopting modular designs, make sewage preheating assembly, preheating of air assembly, low temperature plate type evaporating apparatus and recovery assembly etc. that open interface is all set, not only be convenient to the assembly and connection between each assembly module, and be conducive to the independent upgrading between each assembly module.And low temperature plate type evaporating apparatus can further be designed to preferred composite module structure, be that single low temperature plate type evaporating apparatus can be according to sewage load and process time length, to increase or to reduce the quantity of drawer type composite module, also multiple low temperature plate type evaporating apparatus can be carried out to parallel connection in addition, carry out independently respectively sewage disposal simultaneously, treatment capacity can increase sharply after the parallel connection of multiple low temperature plate type evaporating apparatus, raise the efficiency, and when a low temperature plate type evaporating apparatus is wherein in the time carrying out the cleaning of crystallisate, other low temperature plate type evaporating apparatus can move simultaneously, to ensure the continuity of sewage disposal, even if breaking down, individual module do not affect the operation of whole treatment unit yet.
The thermal source of the use such as sewage preheating assembly, preheating of air assembly of the reverse osmosis system for high-concentration sewage processing of the present utility model all can adopt clean energy, it is mainly for example the methane energy that utilizes household refuse landfill sites self to produce, application cost is low, and can reduce greenhouse gases and directly discharge.If the utility model treatment unit, for Industrial Wastewater Treatment field, can utilize sun power or air can serve as main energy sources.Biogas energy or sun power, air can all belong to clean energy field, meet national policy guiding, and are conducive to environment protection.
Generally speaking, whole reverse osmosis treatment system of the present utility model not only flexible operation (can move continuously, also can intermittent operation, the series-parallel system of all right adjustment System, adapt to the requirement of water quality and quantity), and the whole system construction period is short, to debug, start rapidly, equipment transports on-the-spot rear to needs the time installation and debugging work of about two weeks just can complete; Whole system level of automation is high; operation operation is easy; treatment system of the present utility model can be designed to full rotation type; whole system is provided with perfect monitoring, Controlling System; PLC can regulate automatically according to sensor parameters, sends guard signal in good time, and system is formed to protection; operator only need search error code according to operational manual and fix a breakdown, and operator's experience is not had to too high requirement.Treatment system of the present utility model is that integrated form is installed, and auxiliary construction and facility are also some small-sized structures, and floor space is very little.The process treatment process of whole reverse osmosis system is simple, cost of investment is low, and energy consumption is low, safeguards that operation is simple and convenient, better economic benefit, and the sewage final product of processing is approximately 97% clear water and approximately 3% crystallisate, can realize pollutent " zero " discharge.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the utility model reverse osmosis unit.
Fig. 2 is the current direction schematic diagram of the utility model reverse osmosis unit.
Fig. 3 is the plan structure schematic diagram of the utility model reverse osmosis unit middle level flow table.
Fig. 4 is the plan structure schematic diagram of the utility model reverse osmosis unit middle level flow table and filter membrane component combination.
Fig. 5 is the structural representation of filtering membrane in the utility model reverse osmosis unit.
Fig. 6 is the structural representation of flow guiding disc in common disc tube reverse osmosis (dt-ro) device.
Fig. 7 is the structural representation of diaphragm in common disc tube reverse osmosis (dt-ro) device.
Fig. 8 is the structural representation of the treatment unit of low-temperature evaporation high-concentration sewage in the utility model reverse osmosis treatment system.
Fig. 9 is the structural representation (having omitted part evaporation plate) of low temperature plate type evaporating apparatus in the utility model reverse osmosis treatment system embodiment.
Figure 10 is the air-flow systemic circulation schematic diagram of low temperature plate type evaporating apparatus in the utility model reverse osmosis treatment system embodiment.
Figure 11 is the evaporation plate partial enlarged drawing (air-flow partial circulating schematic diagram) of low temperature plate type evaporating apparatus in the utility model reverse osmosis treatment system embodiment.
Figure 12 is the partial enlarged drawing (side-looking) of the over-pass of low temperature plate type evaporating apparatus in the utility model reverse osmosis treatment system embodiment.
Figure 13 is the process principle figure in treatment unit when operation of low-temperature evaporation high-concentration sewage in the utility model reverse osmosis treatment system embodiment.
Marginal data:
1, low temperature plate type evaporating apparatus; 11, concentrated solution entrance end; 12, hot-air inlets end; 13, evaporation plate; 131, inboardend; 132, effluent head; 133, overflow weir; 134, over-pass; 135, lenticular dentation; 14, hot air outlet; 15, concentrated solution outlet; 16, evaporation cavity; 17, condensation recycling cavity; 18, condenser; 2, heating unit; 21, heating pipe line; 3, concentrated solution preheating pond; 31, concentrated solution transferpump; 32, concentrated solution transport pipe; 33, flow control component; 4, Heating pool; 41, gas blower; 42, air delivery pipe road; 43, air flow controller; 44, air heating conduit; 5, phlegma liquid storage tank; 51, back pool; 52, outlet sump; 53, condenser moisturizing pipeline; 6, steam-water separation tank; 61, induced draft fan; 62, photochemical catalytic oxidation odor removal; 63, warm air diverting valve; 7, reverse osmosis membrane; 71, laminar flow dish; 72, filter membrane component; 73, O RunddichtringO; 74, end flange; 75, lip-type packing; 76, joint flange; 78, union lever pad; 79, nut; 80, sewage prosopyle; 81, union lever; 82, see through liquid outlet; 83, see through collection; 84, concentrated solution relief outlet; 85, putamina; 86, pile fabric sheet; 87, welding edge; 88, spoke-like flow-guiding channel; 89, long strip shape tap hole; 9, radial indentation; 91, distributing damper.
Embodiment
For the ease of understanding the utility model, below in connection with Figure of description and preferred embodiment, the utility model is done more comprehensively, described meticulously, but protection domain of the present utility model is not limited to following specific embodiment.
It should be noted that, in the time that a certain element is described on " be fixed on or be connected in " another element, it can be directly to fix or be connected on another element, can be also indirectly fixed or be connected on another element by other intermediate connectors.
Unless otherwise defined, all technical terms of hereinafter using are identical with the implication that those skilled in the art understand conventionally.Technical term used herein, just in order to describe the object of specific embodiment, is not to be intended to limit protection domain of the present utility model.
As shown in Figures 1 to 5, a kind of reverse osmosis unit of processing for high-concentration sewage (the present embodiment refers to percolate) of the present utility model, comprise tubular putamina 85, sealed at both ends joint flange 76 and the end flange 74 of being connected with of putamina 85, putamina 85 center is equiped with the union lever 81 of TBE (threaded both ends), union lever 81 is through joint flange 76 and end flange 74, the middle part of union lever 81 is equipped with by multilayer layer flow table 71 and is sealedly attached to the filter assemblies that the filter membrane component 72 between adjacent layers flow table 71 forms, between filter membrane component 72 and laminar flow dish 71, form sewage laminar flow channel.What on union lever 81, be equiped with hollow in joint flange 76 tops sees through collection 83, and fastening by the nut 79 on union lever 81; Union lever 81 lower ends are equiped with the Sealed casing pipe for support base laminar flow dish 71 in end flange 74 tops, are equiped with union lever pad 78 fastening by the nut 79 on union lever 81 in end flange 74 belows.A side that sees through collection 83 is offered through liquid outlet 82.Joint flange 76 is provided with sewage prosopyle 80 and concentrated solution relief outlet 84, sewage prosopyle 80 is communicated with putamina 85 inner bottom parts by the gap between laminar flow dish 71 and putamina 85 internal surfaces, between multilayer layer flow table 71 and union lever 81, be provided be communicated to through liquid outlet 82 see through liquid passage, concentrated solution relief outlet 84 is communicated with the inner chamber of putamina 85.Filter membrane component 72, for periphery is three layers of sandwich ring structure of octagon, comprises the reverse osmosis membrane 7 of two-layer concentric setting and is located in thread support therebetween.The neighboring of this shellring shape material forms a welding edge 87 with ultrasonic technology welding, and the opening-like formation pure water inlet of preglabellar field is communicated to through liquid passage.On laminar flow dish 71, be circumferentially evenly equipped with multiple long strip shape tap holes 89 near its central hole edge, each layer of sewage laminar flow channel is communicated with.Centre hole edge is provided with 6 radial indentation 9, and the radial indentation 9 on all laminar flow dishes 71 is interconnected and forms the above-mentioned liquid passage that sees through, and the surface of laminar flow dish 71 offers some spoke-like flow-guiding channels 88 along the radiation direction of aforesaid long strip shape tap hole 89.Spoke-like flow-guiding channel 88 is interior is provided with a distributing damper 91 near the outer peripheral position of laminar flow dish 71, distributing damper 91 is 1/4~1/2 of laminar flow dish 71 radius length along laminar flow dish 71 length radially, and distributing damper 91 is divided the open area of spoke-like flow-guiding channel 88 equally substantially.The spacing on the upper and lower surface of adjacent two layers flow table 71 is h, h=3mm.
Compare traditional disc tube reverse osmosis (dt-ro) (DTRO) film system, in the utility model, the convex dot shape structure (shown in Figure 6) on flow table surface, DTRO middle level is changed into spoke-like passage, to design according to the direction of current and waterpower, both can make treatment solution flow through under pressure the spoke-like flow-guiding channel collision of filter membrane component surface chance time, form turbulent flow, increase transmission rates and self-cleaning function, effectively avoid film to stop up and concentration polarization phenomenon, be easy to clean, greatly extend the work-ing life of filter membrane component; And be applicable to process high opacity and high waste water and worse flow condition containing sand coefficient; Also can avoid convex dot shape structure easily to make waterpower carry out burst diffusion, cause the defect of system capacity loss, effectively to fall low-energy loss, mitigation system pressure, the capacity usage ratio of raising system.In the utility model, between octagon filter membrane component and laminar flow dish, there is gap, reduce the pressure of bottom filter membrane component, make in whole device pressure more balanced, contribute to solve and in existing DTRO system membranes post, use the excessive problem that penetrates infringement that causes diaphragm of circular film (shown in Figure 7) local pressure, and can avoid the distortion of laminar flow dish, extended the work-ing life of device.
In the present embodiment, thread support is pile fabric sheet 86.Centre arrange pile fabric sheet 86 can make water purification Rapid Flow by reverse osmosis membrane 7 to union lever 81 peripheries see through liquid passage, see through liquid very short from the distance at filter membrane component 72Dao center, and all equate for filter membrane components all in assembly.
In the present embodiment, between joint flange 76, end flange 74 and putamina 85, be tightly connected by lip-type packing 75.The filter assemblies that guarantee is made up of laminar flow dish 71 and filter membrane component 72 pressure is in the course of the work reduced the loss and water does not leak.Between laminar flow dish 1 and filter membrane component 2, through being all tightly connected by O RunddichtringO 73 between collection 83 and union lever 81 and joint flange 76.O RunddichtringO 73 on laminar flow dish 71 can prevent that former water from entering through liquid passage.
A kind of reverse osmosis treatment system for high-concentration sewage processing of the present utility model, comprise the concentrated treatment unit of liquid of low-temperature evaporation percolate and the reverse osmosis unit of above-mentioned the present embodiment as shown in Figure 8, the treatment unit of this low-temperature evaporation high-concentration sewage comprises concentrated solution preheating assembly, preheating of air assembly, low temperature plate type evaporating apparatus 1 and recovery assembly, concentrated solution preheating assembly, preheating of air assembly is communicated to respectively concentrated solution entrance end 11 and the hot-air inlets end 12 of low temperature plate type evaporating apparatus 1, reclaiming assembly is communicated with the bottom of low temperature plate type evaporating apparatus 1 and is formed circulation by a warm air diverting valve 63 and shunt conduit.The concentrated solution relief outlet 84 of reverse osmosis unit is communicated with the entrance end of sewage preheating assembly.
As shown in Figure 8, concentrated solution preheating assembly in the present embodiment and preheating of air assembly share a set of thermal source plenum system, the thermal source plenum system of the present embodiment comprises heating unit 2 and heating pipe line 21, in heating pipe line 21, fill heat-transfer medium, heat-transfer medium can adopt clear water or heat conduction wet goods, the general stainless steel pipes that adopts of heating pipe line 21; Heating unit 2 in the present embodiment is a biogas burning boiler, this biogas burning boiler can directly be collected the biogas of household refuse landfill sites, if treatment unit of the present utility model is for the treatment of high-concentration industrial-water, heating unit 2 can adopt solar heat collector or air energy heating unit.
Concentrated solution preheating assembly in the present embodiment comprises concentrated solution preheating pond 3, heating pipe line 21 extends to heat supply in concentrated solution preheating pond 3, concentrated solution preheating pond 3 is communicated to the concentrated solution entrance end 11 of low temperature plate type evaporating apparatus 1 through concentrated solution transferpump 31 and concentrated solution transport pipe 32, be also provided with such as flow pump of flow control component 33(on concentrated solution transport pipe 32).Heating pipe line 21 also extends to a Heating pool 4, preheating of air assembly comprises gas blower 41 and air delivery pipe road 42, air delivery pipe road 42 leading portions are provided with and extend to the air heating conduit 44 to preheating of air in Heating pool 4, air delivery pipe road 42 back segments are provided with air flow controller 43, air delivery pipe road 42 is finally communicated to the hot-air inlets end 12 of low temperature plate type evaporating apparatus 1, and hot-air inlets end 12 places are provided with nozzle.
As shown in Fig. 9~Figure 11, the low temperature plate type evaporating apparatus 1 in the present embodiment is multi-layer plate-type structure, and material of main part all adopts stainless steel to make, and is mainly laminated by multi-layer evaporation plate 13.The concentrated solution that makes to enter in low temperature plate type evaporating apparatus 1 by the flow control component 33 in concentrated solution preheating assembly forms continuous laminar flow shape liquid film from top to bottom on multi-layer evaporation plate 13, the warm air that makes to enter in low temperature plate type evaporating apparatus 1 by preheating of air assembly forms continuous upstream from bottom to top 13 of multi-layer evaporation plates, and upstream and continuous laminar flow shape liquid film counter current contact are to realize the low-temperature evaporation of moisture in concentrated solution continuously.
In the low temperature plate type evaporating apparatus 1 of the present embodiment, multi-layer evaporation plate 13 is arranged to drawer type composite module structure, each drawer be one can free assembly and disassembly composite module, in the present embodiment, each drawer is made up of one deck evaporation plate 13, and multiple drawers superpose up and down and form the agent structure of multi-layer evaporation plate 13.As shown in Figure 8, realizing part is the evaporation plate 13 of actual setting, dotted portion represents the evaporation plate that can increase by drawer type composite module structure, thus, can pass through to regulate the quantity of drawer quantity regulating evaporation plate 13, and then regulate the time of continuous laminar flow shape liquid film and continuous upstream counter current contact.
As shown in figure 12, in the low temperature plate type evaporating apparatus 1 of the present embodiment, one end of every one deck evaporation plate 13 is inboardend 131, the other end is effluent head 132, effluent head 132 is provided with an over-pass 134, the height of the overflow weir 133 of offering on the height by controlling water kick baffle plate 134 or over-pass 134, the thickness of adjustable corresponding evaporation plate 13 top continuous laminar flow shape liquid films, makes the thickness of liquid film of continuous laminar flow shape liquid film in every one deck evaporation plate 13 present the form of successively decreasing step by step from top to down; Thickness of liquid film to the drawer type evaporation plate 13 of the lowest layer is limited can evaporate formation xln completely.
In the low temperature plate type evaporating apparatus 1 of the present embodiment, multi-layer evaporation plate 13 is arranged to impel continuous laminar flow shape liquid film with the descending guiding decoration form of S shape mode; Be that the inboardend 131 of neighbouring two-layer evaporation plate 13 and the position of effluent head 132 alternately change, under this structure arranges, upstream rises in S shape mode and keeps counter current contact with descending continuous laminar flow shape liquid film continuously.
As shown in figure 11, in the low temperature plate type evaporating apparatus 1 of the present embodiment, in multi-layer evaporation plate, the lower surface of every one deck evaporation plate 13 is arranged to impel continuous upstream to form lenticular dentation 135(or the wavy structure of local turbulence turbulent flow).
The low temperature plate type evaporating apparatus top of the present embodiment is provided with and the hot air outlet 14 that reclaims assembly and be communicated with, and the bottom of low temperature plate type evaporating apparatus 1 is provided with concentrated solution outlet 15.Cavity volume in low temperature plate type evaporating apparatus 1 is separated into evaporation cavity 16 and condensation recycling cavity 17, and evaporation cavity 16 is located at the middle part of low temperature plate type evaporating apparatus 1, condensation recycling cavity 17 is located at the periphery of evaporation cavity 16, and concentrated solution entrance end 11 is directly communicated to the top of evaporation cavity 16.
The top of the low temperature plate type evaporating apparatus 1 of the present embodiment is provided with phlegma is guided to the condenser 18 in condensation recycling cavity 17.The internal surface at low temperature plate type evaporating apparatus 1 top is arranged to coniform, condenser 18 is water cooled condenser, this water cooled condenser is located between cone shape internal surface and the outer wall of low temperature plate type evaporating apparatus 1, the bottom of condensation recycling cavity 17 offers condensate outlet, condensate outlet is by pipeline communication to phlegma liquid storage tank 5, phlegma liquid storage tank 5 comprises back pool 51 and outlet sump 52, and the outlet sump 52 of phlegma liquid storage tank 5 is separately communicated to the water-in of condenser 18 by condenser moisturizing pipeline 53.
In the treatment unit of the concentrated liquid of low-temperature evaporation percolate of the present embodiment, reclaim assembly and comprise steam-water separation tank 6, induced draft fan 61 and photochemical catalytic oxidation odor removal 62, and hot air outlet 14 connect to go up to be communicated to after steam-water separation tank 6 and induced draft fan 61 by pipeline in photochemical catalytic oxidation odor removal 62(, establish ultraviolet lamp tube and catalyzer web plate).The bottom of steam-water separation tank 6 is provided with condensate drain outlet.
In the treatment unit of the concentrated liquid of the low-temperature evaporation percolate of the present embodiment, be provided with multiple compatibility interfaces, so as according to day treatment scale increase and decrease low temperature plate type evaporating apparatus 1 quantity; A kind of is preferred embodiment the low temperature plate type evaporating apparatus 1 that two groups of parallel connections are set, so that when one group of low temperature plate type evaporating apparatus 1 overhauls or clears up xln therein, another group low temperature plate type evaporating apparatus 1 can work on, to ensure the continuous processing of concentrated solution.
In the present embodiment, the treatment system operation logic of percolate is as follows:
First as shown by the arrows in Figure 2, the utility model adopts the open runner of 3mm, percolate is first entered by sewage prosopyle 80, enter into bottom of device from the gap passage between laminar flow dish 71 and putamina 85, flange 74 places are made as one-level by bottom layer flow table 71(endways) on long strip shape tap hole 89 enter one-level sewage laminar flow channel, processed percolate with the shortest distance Rapid Flow through first-level filtering membrane module 72, then 180 ° of reverses are to the another side of first-level filtering membrane module 72, flow into B-grade sewage laminar flow channel from the long strip shape tap hole 89 at secondary laminar flow Pan71 center, the like, thereby form by laminar flow dish 71 circumference Dao Yuan centers on filter membrane component 72 surfaces, arrive again circumference, two serpentine routes at Zai Daoyuan center.In this process, clear water sees through filter membrane components 72 at different levels and is delivered to through discharging by seeing through liquid outlet 72 in liquid passage by inner pile fabric sheet 86, and concentrated solution is finally discharged from concentrated solution relief outlet 84.Compare traditional device, structure of the present utility model makes that percolate processing efficiency is higher, producing water ratio is higher, outlet effect is better, energy consumption is lower, filtering membrane longer service life.The concentrated liquid of percolate of discharging from concentrated solution relief outlet 84 is processed via the treatment unit of the concentrated liquid of follow-up low-temperature evaporation percolate again.As shown in figure 13, the follow-up treating processes to concentrated solution mainly comprises the following steps:
(1) collect the biogas of refuse landfill, utilizing heating unit 2(is biogas burning boiler) preheating heat-transfer medium, using clear water or thermal oil as heat-transfer medium; Heat-transfer medium after preheating is at heating pipe line 21 internal recycle, heating pipe line 21 transfers heat to percolate concentrated solution in concentrated solution preheating pond 3, percolate concentrated solution is heated to 50 DEG C of left and right (preferably 40 DEG C~60 DEG C), and the concentrated solution after being preheated is sent into the concentrated solution entrance end 11 of low temperature plate type evaporating apparatus 1 by flow control component 33.
(2) preheating of air assembly comes into operation simultaneously, the thermal source of preheating of air assembly is taken from the Heating pool 4 after heating unit 2 preheatings equally, outside air first enters air delivery pipe road 42 through gas blower 41, air delivery pipe road 42 leading portions are provided with and extend to the air heating conduit 44 to preheating of air in Heating pool 4, warm air (30 DEG C of left and right) after 44 preheatings of air heating conduit is admitted to the hot-air inlets end 12 of low temperature plate type evaporating apparatus 1 again by an induced draft fan, hot-air inlets end 12 is located at the bottom section (being Tu8ZhongⅠ district) of low temperature plate type evaporating apparatus 1.
(3) low temperature plate type evaporating apparatus 1 is airtight drawer type multilayer plank frame; The principle evaporation concentration liquid of its simulation " seawater is evaporated brine "; Make concentrated solution on multi-layer evaporation plate 13, form continuous laminar flow shape liquid film from top to bottom by flow control component 33, due to the special construction design of multi-layer evaporation plate 13 in the present embodiment treatment unit, make continuous laminar flow shape liquid film descending in serpentine mode, and the thickness of liquid film reduces from top to bottom step by step, to the thickness of liquid film of the drawer type evaporation plate 13 of the lowest layer just to evaporate and to be limited; Meanwhile, the warm air entering from hot-air inlets end 12 slowly brushes the each layer of laminar flow shape liquid film evaporation plate 13 from bottom to top in low temperature plate type evaporating apparatus 1; Due to the special construction design (lenticular dentation) of evaporation plate 13 lower surfaces, upstream can be met obstructions when through each layer of evaporation plate 13 and form local turbulence turbulent flow (referring to Figure 11), force warm air to contact repeated multiple timesly with liquid film, warm air can form multiple Scroll-tupe partial circulatings above evaporation plate 13 liquid films, and upstream final formation saturated vapor steam flow after multi-layer evaporation plate 13 arrives the top area (Ji Tu8Ⅱ district) of low temperature plate type evaporating apparatus 1 continuously.
(4) low temperature plate type evaporating apparatus 1 is further simulated " typhoon " effect, be equiped with a condenser 18 at its top, condenser 18 makes the saturated steam that arrives device inner top region (II district) meet condensation knot, release of heat in the process of condensing, and then form negative pressure in low temperature plate type evaporating apparatus 1 top area, make this region produce a kind of upwards pulling force of ascension of warm air that impels, constantly rise with the warm air that drives low temperature plate type evaporating apparatus 1 bottom.Under slowly the brushing of warm air, the moisture of low temperature plate type evaporating apparatus 1 interior concentrated solution is constantly evaporated; The concentration of concentrated solution is more and more higher, and after evaporation reaches the saturation concentration of solute in concentrated solution, inorganic ion can be separated out with the form of crystal in evaporation plate 13; Operation for some time continuously, in the time that evaporation plate 13 intercrystalline things are increased to expection thickness, cut off the water inlet of concentrated solution in low temperature plate type evaporating apparatus 1, continue to pass into warm air and evaporate; After the residual moisture in low temperature plate type evaporating apparatus 1 is evaporated completely, root out the crystalline powder material in evaporation plate with unloading plate, collect crystalline powder material and carry out recycling, or do temporarily after solidification treatment subregion antiseepage landfill separately, exploitation treating after.The bottom of low temperature plate type evaporating apparatus 1 arranges concentrated solution outlet 15 as pod apertures, makes the liquid not evaporating or can be back to leachate equalization basin because of the liquid of misoperation overflow.
(5) top of low temperature plate type evaporating apparatus 1 arranges hot air outlet 14 as gas port, hot air outlet 14 is connected after upper steam-water separation tank 6 and induced draft fan 61 and is communicated to photochemical catalytic oxidation odor removal 62 by pipeline, also a warm air circulation loop (systemic circulation) is formed on the bottom by pipeline communication and low temperature plate type evaporating apparatus 1 simultaneously, and the warm air that band has surplus heat can circulate in the interior formation of low temperature plate type evaporating apparatus 1 after by the carbonated drink separating treatment of steam-water separation tank 6; The water of condensation of realizing after carbonated drink separates can qualified discharge; Realizing after the natural circulation (systemic circulation) of low temperature plate type evaporating apparatus 1 interior air-flow, the work of can optionally reduce or turn off the blast machine 41 and induced draft fan 61, to reduce energy consumption; Airshed by air flow controller 43 in can balance systemic circulation pipeline, unnecessary air purifies rear qualified discharge by photochemical catalytic oxidation odor removal 62, photocatalytic oxidation device is mainly utilized uviolizing, under Titanium Dioxide effect, pollutent Catalytic Oxygen in hot exhaust gas is changed into inorganics, carbonic acid gas, after water treatment, pass through induced draft fan qualified discharge.
(6) condenser 18 that low temperature plate type evaporating apparatus 1 top arranges makes saturated vapor air-flow meet cold rear formation water of condensation, water of condensation is by the condensation recycling cavity 17 along cone shape overhead stream to low temperature plate type evaporating apparatus 1, pass through again condensate outlet, finally be collected in phlegma liquid storage tank 5, phlegma liquid storage tank 5 comprises back pool 51 and outlet sump 52, partial condensation water is pushed the water-in that flows to condenser 18 by water pump by outlet sump 52 as condenser 18 cycling use of waters, recycling siphon principle can be drained to back pool 51 by the water after being heated in condenser 18, make it recycle, water of condensation unnecessary in phlegma liquid storage tank 5 can qualified discharge.
In general,, after the processing of above-mentioned the utility model treatment unit, the concentrated liquid of percolate finally becomes approximately 97% clear water and approximately 3% crystalline powder material.
While stating in design the area of multi-layer evaporation plate in treatment unit and overall floor height, we are to process 15 tons of concentrated solutions day as standard; Because the treatment unit in the present embodiment is provided with multiple compatibility interfaces, therefore we can increase and decrease according to the Sino-Japan treatment scale of reality the quantity of low temperature plate type evaporating apparatus 1; Such as, be that 30 ton per days calculate by the treatment scale of concentrated solution in the present embodiment, the low temperature plate type evaporating apparatus 1 that two groups of parallel connections are set can solve, also can ensure the continuity of concentrated solution processing simultaneously, when first set low temperature plate type evaporating apparatus moves after for some time continuously, cut off water inlet, continue to blast warm air, after remaining liq in evaporation board slot is evaporated completely, unload plate and root out crystallisate; In cutting off the water inlet of first set low temperature plate type evaporating apparatus, keep the water intaking valve of the second cover low temperature plate type evaporating apparatus to open, so cyclical operation, can keep continual operation.
Put into practice engineering and show, in the stoste of percolate is processed, single filter membrane lifetime is 3 years, even longer, cascade filtration membrane lifetime as long as five years more than, this is that general reverse osmosis treatment system is beyond one's reach.Filter membrane component in the utility model all has high clearance to every pollutent, and effluent quality is good.Under the prerequisite that reaches high-caliber emission standard, with respect to other technique, reduced investment, working cost are low.Can reach equally in the treatment process of primary standard, the investment of two-stage the utility model device and working cost will be far below other treatment process.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (10)

1. the reverse osmosis unit for high-concentration sewage processing, comprise tubular putamina and the union lever of being located at putamina center, sealed at both ends joint flange and the end flange of being connected with of putamina, on joint flange, offer sewage inlet, see through liquid outlet and concentrated solution outlet, putamina inner chamber is arranged with multilayer layer flow table on union lever, between adjacent layers flow table, be sealedly connected with filter membrane component, between multilayer layer flow table and union lever, be provided with to be communicated to and see through liquid passage through liquid outlet, it is characterized in that: the outward flange closure of described filter membrane component, and preglabellar field is opening-like to be communicated to through liquid passage, between described filter membrane component and each laminar flow dish, form sewage laminar flow channel, multiple by the long strip shape tap holes of sewage laminar flow channel connection along being circumferentially evenly equipped with near its central hole on described laminar flow dish, described laminar flow panel surface offers some spoke-like flow-guiding channels along the radiation direction of aforementioned long strip shape tap hole.
2. the reverse osmosis unit for high-concentration sewage processing according to claim 1, it is characterized in that: in described spoke-like flow-guiding channel, be provided with a distributing damper near the outer peripheral position of laminar flow dish, described distributing damper is 1/4~1/2 of laminar flow dish radius length along the length of laminar flow disc radial, and described distributing damper is divided the open area of spoke-like flow-guiding channel equally substantially.
3. the reverse osmosis unit for high-concentration sewage processing according to claim 2, it is characterized in that: described filter membrane component is three layers of sandwich ring structure, comprise the reverse osmosis membrane of two-layer concentric setting and be located in thread support therebetween, described thread support is pile fabric sheet; The outward flange of reverse osmosis membrane and thread support is integrally welded; The outline of described filter membrane component is octagon.
4. according to the reverse osmosis unit for high-concentration sewage processing described in claim 1,2 or 3, it is characterized in that: the centre hole edge of described laminar flow dish offers multiple radial indentation, the radial indentation on each laminar flow dish is interconnected and forms the described liquid passage that sees through; On described union lever, be equiped with seeing through collection and by the fastening nuts on union lever, describedly seeing through liquid outlet and be opened in described collection one side that sees through of hollow in joint flange top.
5. according to the reverse osmosis unit for high-concentration sewage processing described in claim 1,2 or 3, it is characterized in that: after described multilayer layer flow table superposes mutually, form tubular layer flow table assembly at putamina inner chamber, between laminar flow dish assembly and putamina inwall, be provided with a vertical feed pathway being communicated with described sewage inlet; The upper end of laminar flow dish assembly is fixed in joint flange, lower end and the spaced apart formation bottom liquid inlet of end flange passage, described filter membrane component inserts in the sewage laminar flow channel forming between each laminar flow dish and makes sewage pass through each sewage laminar flow channel from bottom to top with zigzag.
6. according to the reverse osmosis unit for high-concentration sewage processing described in claim 1,2 or 3, it is characterized in that: on described union lever, be equiped with Sealed casing pipe in end flange top, on union lever, be equiped with union lever pad in end flange below and by the fastening nuts on union lever; Between described joint flange, end flange and putamina, be tightly connected by lip-type packing; Between described laminar flow dish and filter membrane component, be all tightly connected by O-ring seals.
7. the reverse osmosis treatment system for high-concentration sewage processing, it is characterized in that: comprise the reverse osmosis unit described in any one in the treatment unit of a low-temperature evaporation high-concentration sewage and claim 1~6, the treatment unit of described low-temperature evaporation high-concentration sewage comprises sewage preheating assembly, preheating of air assembly, low temperature plate type evaporating apparatus and recovery assembly, and described sewage preheating assembly, preheating of air assembly are communicated to respectively sewage entrance end and the hot-air inlets end of low temperature plate type evaporating apparatus, described low temperature plate type evaporating apparatus is multi-layer plate-type structure, and be mainly laminated by multi-layer evaporation plate, the sewage that makes to enter in low temperature plate type evaporating apparatus by the flow control component in sewage preheating assembly forms continuous laminar flow shape liquid film from top to bottom on multi-layer evaporation plate, the warm air that makes to enter in low temperature plate type evaporating apparatus by preheating of air assembly forms continuous upstream from bottom to top between multi-layer evaporation plate, described continuous upstream and continuous laminar flow shape liquid film counter current contact, described low temperature plate type evaporating apparatus top is provided with and the hot air outlet that reclaims assembly and be communicated with, described low temperature plate type evaporating apparatus bottom is provided with sewage outlet, described recovery assembly is communicated with formation circulation with the bottom of low temperature plate type evaporating apparatus by pipeline, the concentrated solution outlet of described reverse osmosis unit is communicated with the entrance end of described sewage preheating assembly.
8. the reverse osmosis treatment system for high-concentration sewage processing according to claim 7, is characterized in that: described multi-layer evaporation plate is arranged to impel continuous laminar flow shape liquid film with the descending guiding decoration form of S shape mode; Described continuous upstream rises and continuous laminar flow shape liquid film counter current contact in S shape mode; In described multi-layer evaporation plate, the lower surface of every one deck evaporation plate is arranged to impel continuous upstream to form lenticular dentation or the wavy structure of local turbulence turbulent flow.
9. according to the reverse osmosis treatment system for high-concentration sewage processing described in claim 7 or 8, it is characterized in that: in described multi-layer evaporation plate, one end of every one deck evaporation plate is inboardend, the other end is effluent head, described effluent head is provided with an over-pass, the height of the overflow weir of offering on the height by controlling water kick baffle plate or over-pass, make the thickness of liquid film of continuous laminar flow shape liquid film in every one deck evaporation plate present the form of successively decreasing step by step from top to down: described multi-layer evaporation plate is arranged to drawer type composite module structure, each drawer be one can free assembly and disassembly composite module, each drawer is made up of one deck evaporation plate at least, multiple drawers superpose up and down and form the agent structure of described multi-layer evaporation plate.
10. according to the reverse osmosis treatment system for high-concentration sewage processing described in claim 7 or 8, it is characterized in that: the cavity volume in described low temperature plate type evaporating apparatus is separated into evaporation cavity and condensation recycling cavity, and evaporation cavity is located at middle part, condensation recycling cavity is located at the periphery of evaporation cavity, and described sewage entrance end is directly communicated to the top of evaporation cavity; Described low temperature plate type evaporating apparatus top is provided with phlegma is guided to the condenser in condensation recycling cavity; The internal surface at described low temperature plate type evaporating apparatus top is arranged to coniform, described condenser is water cooled condenser, this water cooled condenser is located between cone shape internal surface and the outer wall of low temperature plate type evaporating apparatus, the bottom of condensation recycling cavity offers condensate outlet, and condensate outlet is by pipeline communication to phlegma liquid storage tank.
CN201420090142.7U 2014-02-28 2014-02-28 Reverse osmosis device and reverse osmosis water treatment system applied to treatment of high-concentration wastewater Withdrawn - After Issue CN203833678U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103848479A (en) * 2014-02-28 2014-06-11 长沙威保特环保科技有限公司 Reverse osmosis device and reverse osmosis treatment system for treating high-concentration sewage
CN105244068A (en) * 2015-08-31 2016-01-13 中国核电工程有限公司 Device and method for treating high-salt content radioactive waste liquid
CN109052752A (en) * 2018-08-30 2018-12-21 常州大学 A kind of combined type landfill leachate treatment equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103848479A (en) * 2014-02-28 2014-06-11 长沙威保特环保科技有限公司 Reverse osmosis device and reverse osmosis treatment system for treating high-concentration sewage
CN105244068A (en) * 2015-08-31 2016-01-13 中国核电工程有限公司 Device and method for treating high-salt content radioactive waste liquid
CN109052752A (en) * 2018-08-30 2018-12-21 常州大学 A kind of combined type landfill leachate treatment equipment
CN109052752B (en) * 2018-08-30 2021-04-27 常州大学 Combined type landfill leachate treatment facility

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