CN104118918B - A kind of waste water vapo(u)rization system utilizing sun power - Google Patents

A kind of waste water vapo(u)rization system utilizing sun power Download PDF

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Publication number
CN104118918B
CN104118918B CN201410404518.1A CN201410404518A CN104118918B CN 104118918 B CN104118918 B CN 104118918B CN 201410404518 A CN201410404518 A CN 201410404518A CN 104118918 B CN104118918 B CN 104118918B
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China
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described
water
lithium bromide
connected
rotary evaporation
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CN201410404518.1A
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Chinese (zh)
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CN104118918A (en
Inventor
李洋
凌祥
周瑞文
涂善东
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南京工业大学
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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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/124Water desalination
    • Y02A20/126Water desalination characterized by the method
    • Y02A20/128Evaporation methods, e.g. distillation
    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/124Water desalination
    • Y02A20/126Water desalination characterized by the method
    • Y02A20/128Evaporation methods, e.g. distillation
    • Y02A20/129Evaporation methods, e.g. distillation using solar energy
    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/124Water desalination
    • Y02A20/138Water desalination powered by a renewable energy source
    • Y02A20/142Water desalination powered by a renewable energy source the source being solar thermal or photovoltaics
    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • 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 with climate change mitigation effect characterised by the origin of the energy
    • Y02W10/37Wastewater or sewage treatment systems with climate change mitigation effect characterised by the origin of the energy using solar energy

Abstract

The present invention discloses a kind of waste water vapo(u)rization system utilizing sun power, its energy mainly sun power used, the pre-thermal wastewater of the hot water produced by solar energy collector, what utilize gas carries wet ability, water vapor is carried in evaporator room with after preheating waste water, the water coolant utilizing the lithium bromide refrigerator of Driven by Solar Energy to produce will carry humid gas condensation in surface cooler, and the gas after dehumidifying enters evaporator room again and goes circulation year to wet.The present invention does not need to consume steam, obvious energy conservation, and can realize low-temperature evaporation, can be widely used in the industries such as petrochemical complex, food, light industry, pharmacy, sewage disposal, sea water desaltination.

Description

A kind of waste water vapo(u)rization system utilizing sun power

Technical field

The present invention relates to a kind of waste water vapo(u)rization system utilizing sun power, the industries such as petrochemical complex, food, light industry, pharmacy, sewage disposal, sea water desaltination can be widely used in.

Background technology

In short supply along with industrial expansion and water resources, the contaminated wastewater concentration that some industrial trades produce is more and more higher, and composition becomes increasingly complex, and quantity discharged is increasing, except containing organic contamination beyond the region of objective existence in these waste water, also containing a large amount of inorganic salt, as Cl -, SO 4 2-, Na +, Ca 2+plasma.These high salt, high organic wastewater, if unprocessed direct discharge, will certainly produce harm greatly to aqueous bio, Drinking Water and industrial and agricultural production water.

Method of evaporation is the treatment process of conventional high slat-containing wastewater; its technique is simple; but owing to needing to consume a large amount of steam in evaporative process; it is a high energy consumption process; therefore develop energy-efficient evaporative desalination technique and device, reduce energy consumption, or use clean energy; protection of the environment, exploring effective organic high-salinity wastewater treatment technology has become one of focus of current wastewater treatment.

Current main employing waste water evaporation technology mainly contains multiple-effect evaporation technology and mechanical vapor recompression technology.Multiple-effect evaporation technology is the secondary steam that before utilizing, effect evaporation produces, and as the thermal source of rear single-effect evaporator, reaches the object of steam saving usage quantity, but its occupation area of equipment is large, and cost of investment is high.Mechanical vapor recompression technology principle of work is: utilize vapour compressor (blower fan) to compress the secondary steam produced in vaporizer, secondary steam temperature, pressure improve, heat content increases, can enter again in evaporator system as evaporation thermal source, repeatedly can reuse the heat of produced secondary steam like this, carry out circulating and evaporating continually, mechanical vapor recompression technology only consumes electric energy, the steam usage quantity of greatly saving, but higher to the performance requriements of its Core equipment Mechanical Vapor Compression, initial investment is also larger.

Summary of the invention

For the deficiency that the waste water evaporation technology adopted in prior art exists, the present invention utilizes sun power as the energy of vapo(u)rization system, and with regenerative apparatus, guarantee system can be run continuously.What utilize gas carries wet ability to absorb the moisture in waste water, and through repeatedly cyclic absorption, assimilated efficiency is higher, and non-secondary pollution discharges, environmental protection more.Adopt the mode of condensation in wet air suction surface cooler, thus greatly reduce the volume of equipment.In addition, apparatus structure is simple, easy to operate, can investment reduction and use cost greatly.And the present invention can realize the low-temperature evaporation of less than 70 DEG C, be applicable to the evaporation of heat-sensitive substance, all can be applied in multiple industries such as medicine, food, sea water desaltination, fine chemistry industries.

The object of the invention is to be realized by following workflow, comprise 1) after waste liquid injects filtering type wastewater storage tank removing solid, sent in preheater by fresh feed pump and be heated to 40 DEG C-70 DEG C.2) waste water after heating enters in hypergravity rotary evaporation room.3) gas at normal temperature is blown in hypergravity rotary evaporation room by pipeline fan, with waste liquid cross-flow heat exchange, and absorption portion moisture, water vapor is pollution-free.4) humid gas that carries after absorbing moisture carries out condensation via in pipeline fan suction surface cooler.5) in surface cooler, the water coolant carried in humid gas and sun power lithium bromide absorption chiller system carries out heat exchange cooling, and water recovery becomes pure water to flow into water of condensation storage tank.6) in hypergravity rotary evaporation room, along with water vapor boiled off liquor concentration increases, reach the high density concentrated solution discharge evaporator room of discharging concentration to go to carry out solid-liquid separation, do not reach the waste liquid of discharging concentration, again sent in hypergravity rotary evaporation room by solution circulation pump and carry out circular treatment.

What the present invention utilized gas to have carries wet ability by the pure water proposition in waste water.

Described gas selects air, can select nitrogen when relating to the industry such as medicine, food.

The waste water vapo(u)rization system utilizing sun power of the present invention, it is made up of filtering type wastewater storage tank, fresh feed pump, preheater, hypergravity rotary evaporation room, pipeline fan, surface cooler, water of condensation storage tank and sun power lithium bromide absorption chiller system etc., the hot water (a) that solar energy collector produces about 90 DEG C is used for driving sun power lithium bromide refrigerating mechanism cold, b () enters the heating medium of preheater as process waste water, (c) is used for carrying out energy storage in phase change heat accumulator; The present invention utilizes year wet ability of gas, water vapor is carried in evaporator room with after preheating waste water, realize the low-temperature evaporation of 40 DEG C-70 DEG C, the wet air carried after wetting enters condensation in described surface cooler and is proposed by pure water, and the gas after dehumidifying enters described evaporator room again and goes circulation year to wet.The high-gravity rotating bed waste liquid that makes is utilized to contact with recycle gas cross-flow in evaporator room of the present invention, further the moisture absorption process of strengthening gas.

Thered is provided by the hot water heated through described solar energy collector for the heat of heated waste water in described preheater; The heat that humid gas is carried in condensation in described surface cooler is provided by the water coolant through described lithium bromide refrigerator.

Described hypergravity rotary evaporation room comprises the second inlet pipe, the second outlet pipe, the 3rd outlet pipe, the 4th outlet pipe, the 5th outlet pipe, triple feed inlet pipe;

Be connected with described T-valve below the left side that described hypergravity rotary evaporation room is located at by described second inlet pipe, flow into for described waste liquid; The extraction that upper end, described hypergravity rotary evaporation room is connected with described pipeline fan for carrying wet air is located at by described second outlet pipe and described 3rd outlet pipe; Be connected for the outflow of the waste liquid that circulates with described solution circulation pump on the left of the lower end that described hypergravity rotary evaporation room is located at by described 4th outlet pipe; Described 5th outlet is located on the right side of lower end, described hypergravity rotary evaporation room and is connected with described solid-liquid separator, for discharging high density concentrating spent liquor; Described triple feed inlet pipe is located at described hypergravity rotary evaporation room lower right-hand side and is connected with described pipeline fan and flows into for recycle gas.

Foam removal, evaporation, concentrated three processes are synthesized in same container by described hypergravity rotary evaporation room; Utilize and high-gravity rotating bedly carry out the strengthening of gas moisture absorption process thus the evaporation under the low-temperature atmosphere-pressure carried out.

Described hypergravity rotary evaporation room filler is straight silk screen, when silk screen blocks, is cleared up replacing after opening described hypergravity rotary evaporation room upper flanges lid.

The main raw of described preheater is metal titanium and duplex stainless steel.

Described hypergravity rotary evaporation chamber surface material mainly glass reinforced plastic.

Described surface cooler comprises the 4th inlet pipe, the 6th outlet pipe, the 7th outlet, the 5th inlet pipe and the 8th outlet pipe;

Described 4th inlet pipe be located at described surface cooler top be connected with described pipeline fan for carry a humid gas flow in described surface cooler; Described 6th outlet pipe is located at described surface cooler bottom and is connected with described pipeline fan and flows out for gas at normal temperature; Described 7th outlet is located on the right side of described surface cooler lower end and is flowed out for the pure water after water vapor condensation; Described 5th inlet pipe is located at described surface cooler lower right-hand side and is connected with described lithium bromide refrigerator and flows into for water coolant; Described 8th outlet pipe is located at top on the left of described surface cooler and is flowed out with being connected the water coolant after for heat exchange with described cooling water circulating pump.

Described surface cooler is fin plate interchanger; Material mainly adopts stainless steel.

Described sun power lithium bromide absorption chiller system comprises lithium bromide refrigerator, hot well tank, hot water circulating pump, solar energy collector, thermophore and cooling water circulating pump;

Described lithium bromide refrigerator comprises the 6th import, the 9th outlet, the 7th import and the tenth outlet;

Described 6th import is located at described lithium bromide refrigerator top and is connected with the 12 outlet of described solar energy collector to flow into for the hot water after heating through described solar energy collector and drives described lithium bromide refrigerating mechanism cold; Described 9th outlet is located at described lithium bromide refrigerator bottom and is connected for being flowed out hydrothermally with the 8th import of described hot well tank; Described 7th import is located at described lithium bromide refrigerator lower right-hand side and is connected with described cooling water circulating pump and flows into for water coolant; Described tenth outlet is located at described lithium bromide refrigerator right side central and is connected with the 5th import of described surface cooler and flows out for water coolant.

Described hot well tank exports with the 9th of described lithium bromide refrigerator and is connected for flowing into hydrothermally, be connected with described preheater for wastewater heat exchange after inflow hydrothermally, be connected for flowing out hydrothermally with described hot water circulating pump.

Described cooling water circulating pump is connected for being squeezed in described lithium bromide refrigerator by water coolant with described lithium bromide refrigerator.

Described solar energy collector is when solar irradiation enough normally works, inlet valve and outlet valve are opened, the hot water (a) heated through described solar energy collector enters described lithium bromide refrigerator driving refrigeration, b () enters heated waste water in described preheater, (c) enters in thermophore and carry out energy storage.

Described solar energy collector is when solar irradiation is not enough, close inlet valve and outlet valve, the heat stored is released heat hot water (a) and is driven described lithium bromide refrigerating mechanism cold by described thermophore, and (b) enters heated waste water in described preheater.

Described thermophore is a kind of tube and shell heat exchanger, and middle tube side passes into heat storage medium, and heat storage medium is paraffin, and outer shell side is used for passing into hot water.

Described a kind of waste water vapo(u)rization system of sun power that utilizes also comprises solution circulation pump, solution inlet port valve, solution circulated valve and solid-liquid separator;

Described solution circulation pump is connected with described 4th outlet pipe, goes circulating and evaporating for being squeezed in described hypergravity rotary evaporation room through described solution circulated valve by circulation waste liquid; Described solution inlet port valve and described solution circulated valve are connected to described second inlet pipe by T-valve; Described solid-liquid separator is connected with described 5th outlet pipe, for described high density concentrating spent liquor is carried out solid-liquid separation.

A kind of waste water vapo(u)rization system utilizing sun power of the present invention, has the following advantages or benefit: the present invention adopts spontaneous evaporation, and utilize the wet ability of carrying of gas to evaporate, evaporative process does not need to consume steam, and energy-saving effect is more remarkable.The sun power that the present invention utilizes solar energy collector to absorb provides institute's energy requirement for system, and is provided with thermophore in system, thus also can normal operation when can ensure the system cloudy day, uses energy environment-protecting clean more.The present invention adopts evaporation technique, does not add any chemical substance in integrated artistic, and the material therefore reclaimed has more utility value.The present invention adopts plate-fin heat exchanger as surface cooler, and carry out dehumidification by condensation to carrying humid gas, water coolant recycles as heat-eliminating medium, greatly reduces the volume of equipment.The present invention can be used for multiple industry, can select nitrogen when relating to the industry such as food, pharmacy by being used for carrying wet gas.Compared with traditional evaporative desalination technique, evaporator room temperature of the present invention controls below 70 DEG C, can complete well with in waste water with being separated of aqueous nature similar substance.

Accompanying drawing explanation

Fig. 1 workflow schematic diagram utilizing the waste water vapo(u)rization system of sun power of the present invention.

Fig. 2 thermophore workflow of the present invention schematic diagram.

Fig. 3 surface cooler structural representation of the present invention.

Specific embodiments

Below in conjunction with the drawings and specific embodiments, the present invention is further described.

As shown in Figure 1, utilize a waste water vapo(u)rization system for sun power, comprising: filtering type wastewater storage tank 1, fresh feed pump 2, preheater 3, hypergravity rotary evaporation room 4, pipeline fan 5,7, surface cooler 6, water of condensation storage tank 8, sun power lithium bromide absorption chiller system 9, solution circulation pump 10, solution inlet port valve 11, the composition such as solution circulated valve 12 and solid-liquid separator 13.Realization wherein with arrow is pipeline, and the direction of arrow represents Working fluid flow direction in pipeline.

In order to understand fully a kind of waste water vapo(u)rization system of sun power that utilizes of the present invention, be introduced for the trade effluent after tannery's production below.The bittern that trade effluent after tannery produces mainly comprises high density can not directly enter municipal wastewater system.

Bittern containing high density is injected in filtering type wastewater storage tank 1 by the first inlet pipe 1-11, solids removed by filtration, squeeze in preheater 3 by fresh feed pump 2, heat exchange is carried out with from the hot water after solar energy collector 94 heats, High Concentration Brine is heated to 60 DEG C, and enter subsequently in hypergravity rotary evaporation room 4 and be sprayed at filler edge by liquid distributor, filler is with rotating bed high speed rotating, under centrifugal action, waste liquid is thrown out of through filler radial direction.The gas at normal temperature be blown into by pipeline fan 7 is entered in hypergravity rotary evaporation room 4 by triple feed inlet pipe 45, and upwards flows, with High Concentration Brine cross-flow heat exchange.Gas temperature raises and carries the enhancing of wet ability, and absorb the moisture in High Concentration Brine and chemical wastewater, water vapor is pollution-free.Carry the gas after wetting by pipeline fan 5 suction fin plate surface cooler 6, the water coolant provided with lithium bromide refrigerator 91 carries out heat exchange condensation.Condensed pure water is flowed in water of condensation storage tank 8 by the 7th outlet pipe 63.Gas circulation after dewatering uses.In hypergravity rotary evaporation room 4, along with water vapor evaporation High Concentration Brine concentration increases, reach the concentrated brine solution of discharging concentration and discharge the solid recycling obtained after evaporator room goes to carry out solid-liquid separation, do not reach the bittern waste liquid of discharging concentration, again sent in hypergravity rotary evaporation room by solution circulation pump and carry out circular treatment.During native system operational process, provided by the hot water heated through solar energy collector for the heat of heated waste water in preheater.The heat that in surface cooler, humid gas is carried in condensation is provided by the water coolant through lithium bromide refrigerator.

Fig. 2 is the solar heat-preservation device workflow schematic diagram of the present embodiment.

Sun power lithium bromide absorption chiller system 9 comprises lithium bromide refrigerator 91, hot well tank 92, hot water circulating pump 93, solar energy collector 94, thermophore 95 and cooling water circulating pump 96; Lithium bromide refrigerator 91 comprises the 6th import 911, the 9th outlet the 912, the 7th import 914 and the tenth outlet 913; 6th import 911 is located at lithium bromide refrigerator 91 top and the 12 of solar energy collector 94 and is exported 941 and be connected to flow into for the hot water after heating through solar energy collector 94 and drive lithium bromide refrigerator 91 to freeze; 9th outlet 912 is located at lithium bromide refrigerator 91 bottom and is connected for being flowed out hydrothermally with the 8th import 921 of described hot well tank 92; 7th import 914 is located at lithium bromide refrigerator 91 lower right-hand side and is connected with cooling water circulating pump 95 and flows into for water coolant; Tenth outlet 913 is located at lithium bromide refrigerator 91 right side central and is connected with the 5th import 64 of surface cooler 6 and flows out for water coolant; Hot well tank 92 and the 9th of lithium bromide refrigerator 91 export 912 and are connected for the inflow of hot water, be connected with preheater 3 for wastewater heat exchange after hot water flow into, be connected with hot water circulating pump 93 and flow out for hot water; Cooling water circulating pump 96 is connected for being squeezed in lithium bromide refrigerator 91 by water coolant with lithium bromide refrigerator 91.During fine day, when solar energy collector 94 normally works, inlet valve 942 and outlet valve 941 are opened, and the hot water heated through solar energy collector 94 enters lithium bromide refrigerator 91 driving refrigeration, enters heated waste water in preheater 3, enters in thermophore and carry out energy storage; Cloudy day is, during solar energy collector 94 cisco unity malfunction, closes inlet valve 942 and outlet valve 941, and the heat of storage is released heat hot water and driven lithium bromide refrigerator 91 to freeze by thermophore 95, enters heated waste water in preheater 3.

Fig. 3 is surface cooler structural representation.

Surface cooler 6 is a kind of fin plate interchanger 6, and it comprises the 4th inlet pipe 61, the 6th outlet pipe 62, the 7th outlet pipe 63, the 5th inlet pipe 64 and the 8th outlet pipe 65; 4th inlet pipe 61 be located at surface cooler 6 top be connected with pipeline fan 5 for carry a humid gas flow in surface cooler 6; 6th outlet pipe 62 is located at surface cooler 6 bottom and is connected with pipeline fan 7 and flows out for gas at normal temperature; 7th outlet pipe 63 is located on the right side of surface cooler 6 lower end and is flowed out for the pure water after water vapor condensation; 5th inlet pipe 64 is located at surface cooler 6 lower right-hand side and is connected with lithium bromide refrigerator 91 and flows into for water coolant; 8th outlet pipe 65 is located at top on the left of fin plate surface cooler 6 and is flowed out with being connected the water coolant after for heat exchange with cooling water circulating pump 96.

The present invention is applicable to the industries such as waste water, waste liquid concentration, fine chemistry industry, pharmaceutical industry, refuse tip filtrate, reverse osmosis concentrated liquid, underground metal mining and processing, wool cleaning, papermaking, Coal Chemical Industry/petroleum refining, oil-gas mining, food-processing, agricultural chemicals/weedicide, leather process.

The present invention utilizes the wet ability of carrying of gas to evaporate, and evaporative process does not need to consume steam, and energy-saving effect is more remarkable.The sun power utilizing solar energy collector to absorb provides institute's energy requirement for system, and is provided with thermophore in system, thus can ensure that system can non-stop run.Adopt fin plate interchanger as surface cooler, carry out dehumidification by condensation to wet air, water of condensation recycles as heat-eliminating medium, greatly reduces the volume of equipment.Evaporator room temperature of the present invention controls below 70 DEG C, can complete in waste water with being separated of aqueous nature similar compositions.

The energy mainly sun power that waste water vapo(u)rization system of the present invention uses, the pre-thermal wastewater of the hot water produced by solar energy collector, what utilize gas carries wet ability, water vapor is carried in evaporator room with after preheating waste water, the water coolant utilizing the lithium bromide refrigerator of Driven by Solar Energy to produce will carry humid gas condensation in surface cooler, and the gas after dehumidifying enters evaporator room again and goes circulation year to wet.This vapo(u)rization system does not need to consume steam, obvious energy conservation, and can realize low-temperature evaporation.

The foregoing is only preferred embodiment of the present invention, this embodiment should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after reading this disclosure, those skilled in the art all fall within the application's claims limited range to the amendment of the various equivalent form of value of the present invention or the expansion of range of application.

Claims (10)

1. one kind utilizes the waste water vapo(u)rization system of sun power, comprise solar energy collector, it is characterized in that: it is by filtering type wastewater storage tank (1), fresh feed pump (2), preheater (3), evaporator room (4), pipeline fan (5, 7), surface cooler (6), water of condensation storage tank (8) and sun power lithium bromide absorption chiller system (9) composition, the hot water that described solar energy collector produces 90 DEG C is used for driving described sun power lithium bromide absorption chiller system (9) to freeze, hot water enters the heating medium of described preheater (3) as process waste water, be used for carrying out energy storage in phase change heat accumulator, carry humid gas and carry water vapor in described evaporator room (4) with after preheating waste water, realize the low-temperature evaporation of 40 DEG C-70 DEG C, carry wet after wet air enter condensation in described surface cooler (6) pure water proposed, the gas after dehumidifying enters described evaporator room (4) again, and to go circulation to carry wet.
2. waste water vapo(u)rization system according to claim 1, it is characterized in that: also comprise solid-liquid separator (13), described evaporator room (4) is a kind of hypergravity rotary evaporation room (4), the high-gravity rotating bed waste liquid that makes is utilized to contact with recycle gas cross-flow in evaporator room, further the moisture absorption process of strengthening gas; Described hypergravity rotary evaporation room (4) comprises the second inlet pipe (46), the second outlet pipe (41), the 3rd outlet pipe (42), the 4th outlet pipe (43), the 5th outlet pipe (44), triple feed inlet pipe (45);
Be connected with T-valve, for the inflow of waste liquid below the left side that described second inlet pipe (46) is located at described hypergravity rotary evaporation room (4); The extraction that described hypergravity rotary evaporation room (4) upper end is connected with described pipeline fan (5) for carrying wet air is located at by described second outlet pipe (41) and described 3rd outlet pipe (42); Be connected for the outflow of the waste liquid that circulates with solution circulation pump (10) on the left of the lower end that described hypergravity rotary evaporation room (4) is located at by described 4th outlet pipe (43); Described 5th outlet pipe (44) is located on the right side of described hypergravity rotary evaporation room (4) lower end and is connected with described solid-liquid separator (13), for discharging high density concentrating spent liquor; Described triple feed inlet pipe (45) is located at described hypergravity rotary evaporation room (4) lower right-hand side and is connected with described pipeline fan (7) and flows into for recycle gas.
3. waste water vapo(u)rization system according to claim 2, it is characterized in that: foam removal, evaporation, concentrated three processes are synthesized in same container by described hypergravity rotary evaporation room (4), carry humid gas to contact with the waste liquid by high-gravity rotating bed atomization simultaneously, reach the object of heat and mass transfer enhancement;
Described hypergravity rotary evaporation room (4) filler is straight silk screen, when silk screen blocks, is cleared up replacing after opening described hypergravity rotary evaporation room (4) upper flanges lid;
Described hypergravity rotary evaporation room (4) surfacing is glass reinforced plastic.
4. a kind of waste water vapo(u)rization system utilizing sun power according to claim 1, it is characterized in that: described surface cooler (6) is a kind of fin plate interchanger, it comprises the 4th inlet pipe (61), the 6th outlet pipe (62), the 7th outlet pipe (63), the 5th inlet pipe (64) and the 8th outlet pipe (65);
Described 4th inlet pipe (61) be located at described surface cooler (6) top be connected with described pipeline fan (5) for carry a humid gas flow in described surface cooler (6); Described 6th outlet pipe (62) is located at described surface cooler (6) bottom and is connected with described pipeline fan (7) and flows out for gas at normal temperature; Described 7th outlet pipe (63) is located on the right side of described surface cooler (6) lower end and is flowed out for the pure water after water vapor condensation; Described 5th inlet pipe (64) is located at described surface cooler (6) lower right-hand side and is connected with the lithium bromide refrigerator (91) in sun power lithium bromide absorption chiller system (9) and flows into for water coolant; Described 8th outlet pipe (65) is located at top, described fin plate surface cooler (6) left side and is flowed out with being connected the water coolant after for heat exchange with the cooling water circulating pump (96) in sun power lithium bromide absorption chiller system (9).
5. waste water vapo(u)rization system according to claim 1, is characterized in that: described sun power lithium bromide absorption chiller system (9) comprises lithium bromide refrigerator (91), hot well tank (92), hot water circulating pump (93), described solar energy collector (94), thermophore (95) and cooling water circulating pump (96);
Described lithium bromide refrigerator (91) comprises the 6th import (911), the 9th outlet (912), the 7th import (914) and the tenth outlet (913);
Described 6th import (911) is located at described lithium bromide refrigerator (91) top and the 12 of described solar energy collector (94) and is exported to be connected to flow into for the hot water after heating through described solar energy collector (94) and drive described lithium bromide refrigerator (91) to freeze; Described 9th outlet (912) is located at described lithium bromide refrigerator (91) bottom and is connected for being flowed out hydrothermally with the 8th import (921) of described hot well tank (92); Described 7th import (914) is located at described lithium bromide refrigerator (91) lower right-hand side and is connected with described cooling water circulating pump (96) and flows into for water coolant; Described tenth outlet (913) is located at described lithium bromide refrigerator (91) right side central and is connected with the 5th inlet pipe (64) of described surface cooler (6) and flows out for water coolant;
Described hot well tank (92) and the 9th of described lithium bromide refrigerator (91) export (912) and are connected for the inflow of hot water, be connected with described preheater (3) for wastewater heat exchange after hot water flow into, be connected with described hot water circulating pump (93) and flow out for hot water;
Described cooling water circulating pump (96) is connected for being squeezed into by water coolant in described lithium bromide refrigerator (91) with described lithium bromide refrigerator (91).
6. waste water vapo(u)rization system according to claim 5, it is characterized in that: when solar irradiation is enough, when described solar energy collector (94) normally works, inlet valve (942) and outlet valve (941) are opened, the hot water heated through described solar energy collector (94) enters described lithium bromide refrigerator (91) driving refrigeration, enter heated waste water in described preheater (3), enter in thermophore and carry out energy storage;
When solar irradiation is inadequate, during described solar energy collector (94) cisco unity malfunction, close inlet valve (942) and outlet valve (941), the heat of storage is released heat hot water and is driven described lithium bromide refrigerator (91) to freeze by described thermophore (95), enters heated waste water in described preheater (3).
7. waste water vapo(u)rization system according to claim 5, is characterized in that, described thermophore (95) is a kind of tube and shell heat exchanger, and middle tube side passes into phase change heat storage material, and the transformation temperature of phase change heat storage material is 80 DEG C-90 DEG C, and shell side is used for passing into hot water.
8. waste water vapo(u)rization system according to claim 2, is characterized in that: it also comprises solution circulation pump (10), solution inlet port valve (11), solution circulated valve (12) and solid-liquid separator (13);
Described solution circulation pump (10) is connected with described 4th outlet pipe (43), goes circulating and evaporating for being squeezed in described hypergravity rotary evaporation room (4) through described solution circulated valve (12) by circulation waste liquid; Described solution inlet port valve (11) and described solution circulated valve (12) are connected to described second inlet pipe (46) by T-valve; Described solid-liquid separator (13) is connected with described 5th outlet pipe (44), for described high density concentrating spent liquor is carried out solid-liquid separation.
9. waste water vapo(u)rization system according to claim 1, is characterized in that: described preheater (3) material is metal titanium and duplex stainless steel; Described surface cooler (6) material adopts stainless steel; Thered is provided by the hot water heated through solar energy collector (94) for the medium of heated waste water in described preheater (3); In described surface cooler (6), condensation carries the water coolant of humid gas by providing through described lithium bromide refrigerator (91); Carry humid gas and select air or nitrogen.
10. utilize a waste water method of evaporating for sun power, it is characterized in that, concrete steps are:
Step one, waste liquid are sent in preheater by fresh feed pump and are heated to 40 DEG C-70 DEG C after injecting filtering type wastewater storage tank removing solid;
Waste water after step 2, heating enters in hypergravity rotary evaporation room;
Step 3, gas at normal temperature are blown in hypergravity rotary evaporation room by pipeline fan, with waste liquid cross-flow heat exchange, and absorption portion moisture, water vapor is pollution-free;
The humid gas that carries after step 4, absorption moisture carries out condensation via in pipeline fan suction surface cooler;
In step 5, surface cooler, the water coolant carried in humid gas and sun power lithium bromide absorption chiller system carries out heat exchange cooling, and water recovery becomes pure water to flow into water of condensation storage tank;
Step 6, in hypergravity rotary evaporation room, along with water vapor boiled off liquor concentration increases, reach the high density concentrated solution discharge evaporator room of discharging concentration to go to carry out solid-liquid separation, do not reach the waste liquid of discharging concentration, again sent in hypergravity rotary evaporation room by solution circulation pump and carry out circular treatment.
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