CN106673096A - Heat pump latent heat recovering and air cycle evaporating separation electroplating wastewater treatment system - Google Patents

Heat pump latent heat recovering and air cycle evaporating separation electroplating wastewater treatment system Download PDF

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Publication number
CN106673096A
CN106673096A CN201611186122.XA CN201611186122A CN106673096A CN 106673096 A CN106673096 A CN 106673096A CN 201611186122 A CN201611186122 A CN 201611186122A CN 106673096 A CN106673096 A CN 106673096A
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China
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air
heat pump
outfan
input
electroplating wastewater
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金苏敏
陈亮
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Nanjing Tech University
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Nanjing Tech University
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/042Prevention of deposits
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/043Details
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/045Treatment of water, waste water, or sewage by heating by distillation or evaporation for obtaining ultra-pure water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048Purification of waste water by evaporation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/02Heat pumps of the compression type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/10Energy recovery
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Abstract

The invention relates to a heat pump latent heat recovering and air cycle evaporating separation electroplating wastewater treatment system. By using humid air as a carrier, evaporative separation of electroplating wastewater is achieved at normal temperature and normal pressure, and meanwhile, latent heat is recovered by a heat pump, so that the efficiency is improved. The system comprises an air cycle evaporating separation electroplating wastewater system and a heat pump system; in the air cycle evaporating separation electroplating wastewater system, an air input end and an air output end of an evaporator separator separately communicate with an air output end and an air input end of an air drier through pipelines to form an air loop; an electroplating wastewater output end of the evaporative separator, a filter, a condenser of the heat pump and an electroplating wastewater input end of the evaporative separator are successively connected to form a wastewater loop; and in the heat pump system, a compressor, the condenser of the heat pump, a needle valve and an evaporator of the heat pump are successively connected to form a closed loop, and the evaporator of the heat pump is mounted in the air drier. The system is suitable for electroplating wastewater in any concentration, and not only is simple and reliable, but also realizes zero emission, turns wastes into wealth and is easy for miniaturization.

Description

Heat pump recovery of latent heat separates electroplating waste water treatment system with air circulation evaporation
Technical field
The present invention relates to electroplating waste water treatment technology field, and in particular to a kind of heat pump recovery of latent heat evaporates with air circulation Separate electroplating waste water treatment system.
Background technology
With the fast development of national economy, China's discharged volume of industrial waste water substantial increase, for processing industrial wastewater Fund input also rises year by year therewith, and these waste water bring heavy financial burden and environmental burden to enterprise and country.Not The industrial wastewater of Jing process will cause greatly destruction, particularly pollution arable land to environment.Additionally, heavy metal pollution can also lead to Cross food chain and harm is brought to the healthy of people, the whole nation is annual because heavy metal pollution obtains the dead people of cancer and disregards it Number.State Council passes through at the beginning of 2011《Heavy metal pollution integrated control " 12 " is planned》, this be China in history for the first time The preventing and treating of heavy metal pollution is included in the planning of country.《Planning》Require, by 2015, key area lead, hydrargyrum, chromium, cadmium and The discharge of the heavy metal contaminants such as metalloid arsenic, 15% was cut down than 2007.
Electroplating technology is widely used in the industries such as machine manufacture, light industry, electronics, is one of big pollution industry in the whole world three.It It is《National Hazard waste register》Include one of waste, hazard property is T classes, i.e., poisonous classification.The source of electroplating wastewater is general For:(1) plating piece rinse water;(2) spent plating bath;(3) other waste water.Because itself composition is extremely complex, contained nuisance Matter is also relatively more, so electroplating wastewater is difficult to deal with the most.With the fast development of China's economy, to electroplated product Demand increasingly increases, and the discharge capacity of electroplating wastewater grows with each passing day.And contain a large amount of extremely toxic substances in waste water.Once deal with improperly Enter in the middle of environment, the health and ecological environment to people causes greatly destruction.
At present, the main processing method of electroplating wastewater is divided into method of chemical treatment, physical treatment process and biological treatment.Its In, it is easy to operate although method of chemical treatment has equipment simple, the big huge sum of money of concentration of heavy metal ion height, wastewater flow rate can be processed The advantages of category ion, but reclamation rate is low, and sludge quantity is big, and can cause secondary pollution.And for the film in physical treatment process point Higher to the concentration requirement of film and waste water from method, evaporation concentration method energy consumption is larger.Biological treatment is adapted to continuous production, cost It is relatively low, but there are still big, microorganism affected by environment and select that to educate difficulty, plating single and easily form secondary pollution problems.Cause And, there is certain not enough and defect in existing electroplating waste water treatment technology.
The content of the invention
The invention aims to overcome the shortcomings of that prior art is present, there is provided a kind of air circulation evaporation separates plating Waste Water Treatment.
It is a further object of the present invention to provide a kind of heat pump.
It is yet another object of the invention to provide a kind of heat pump recovery of latent heat separates electroplating wastewater processing with air circulation evaporation System, the processing system is insensitive to water quality, can process various types of electroplating wastewaters, and the processing system except reclaiming Outside condensate, also recyclable enriched product and crystal metal salt product are recycled, and are turned waste into wealth, and realize the zero-emission of electroplating wastewater Process.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of air circulation evaporation separates electroplating waste water treatment system, and the air circulation evaporation separates electroplating wastewater processing system System uses air as carrier and carries release moisture evaporation separation electroplating wastewater, and it includes vapor seperator and air drier, The vapor seperator and air drier are heat exchange units, wherein,
Described vapor seperator has electroplating wastewater input, electroplating wastewater outfan, air input, air output End and crystal outfan;
Described air drier has air input, air outfan and condensed water outfan;And the air is dry The inside of dry device is installed by cooler;The air outfan of the vapor seperator and air input are respectively communicated with sky by air channel The air input and air outfan of gas dryer;The crystal outfan of the vapor seperator is crystallized by pipeline connection Thing is exported;The condensed water outfan of the air drier passes through pipeline connection condensation-water drain.
Above-mentioned air circulation evaporation separates electroplating waste water treatment system, the electroplating wastewater output of its vapor seperator End is connected to form electroplating wastewater closed circuit with electroplating wastewater input by pipeline;
Above-mentioned air circulation evaporation separates electroplating waste water treatment system, connects on the electroplating wastewater closed circuit described in it There is waste water moisturizing entrance;Preferably, also it is sequentially installed with along electroplating wastewater flow direction on described electroplating wastewater closed circuit The effect of filter, water pump and heater, wherein heater be for electroplating wastewater evaporation separate energy is provided;Further preferably , described waste water moisturizing entrance is located between the filter and water pump on pipeline.
Above-mentioned air circulation evaporation separates electroplating waste water treatment system, the vapor seperator air input and Blower fan is installed on air channel between the air outfan of air drier, the forced circulation for humid air in system provides dynamic Power.
In addition, described cooler has cooling water input and a cooling water outfan, the cooling water input and cold But water outfan is respectively communicated with cooling water inlet and coolant outlet by pipeline.
A kind of heat pump, it is:The heat pump is used to reclaim the water vapor condensation latent heat in humid air, and it includes Evaporator with heat pump and heat pump condenser, wherein,
The heat pump condenser has electroplating wastewater input, electroplating wastewater outfan, cold-producing medium input and cold-producing medium Outfan;
The evaporator with heat pump has cold-producing medium input and output of condenser;
The cold-producing medium input of the evaporator with heat pump and output of condenser are respectively communicated with heat pump condenser by pipeline Output of condenser and cold-producing medium input.
Above-mentioned heat pump, it is:The heat pump also includes compressor and needle-valve, and the compressor passes through pipeline It is connected between the output of condenser of evaporator with heat pump and the cold-producing medium input of heat pump condenser;The needle-valve passes through pipeline It is connected between the output of condenser of heat pump condenser and the cold-producing medium input of evaporator with heat pump.
A kind of heat pump recovery of latent heat separates electroplating waste water treatment system with air circulation evaporation, and it evaporates including air circulation Electroplating waste water treatment system and heat pump are separated, wherein,
Described air circulation evaporation separates electroplating waste water treatment system and uses air as carrier and carry and discharges moisture steaming Separation electroplating wastewater is sent out, it includes vapor seperator and air drier, the vapor seperator and air drier are changed Hot cell, wherein,
Described vapor seperator has electroplating wastewater input, electroplating wastewater outfan, air input, air output End and crystal outfan;
Described air drier has air input, air outfan and condensed water outfan;And the air is dry Evaporator with heat pump and cooler are installed successively along air-flow direction in the inside of dry device;From the air input stream of air drier The Hot wet air heating for entering first flows through evaporator with heat pump and is exchanged heat, and passes through defeated by the air of air drier after cooler heat exchange Go out end to discharge.
The air outfan of described vapor seperator and air input are respectively communicated with air drier by air channel Air input and air outfan, constitute air loop;The crystal outfan of the vapor seperator passes through pipeline connection Crystal is exported;The condensed water outfan of the air drier passes through pipeline connection condensation-water drain;
Described cooler has cooling water input and cooling water outfan;The cooling water input of the cooler and Cooling water outfan is respectively communicated with cooling water inlet and coolant outlet by pipeline, takes away system waste heat, maintains system stability, The inlet air temp of the air input of vapor seperator can be adjusted simultaneously.
Described heat pump is used to reclaim the water vapor condensation latent heat in humid air, and it includes evaporator with heat pump and heat pump Condenser;Evaporator with heat pump in the heat pump is arranged on the air circulation and evaporates separation electroplating waste water treatment system In air drier, for reclaiming humid air in water vapor condensation latent heat, the heat pump condenser conduct in the heat pump The air circulation evaporation separates the heater of electroplating waste water treatment system, wherein,
The heat pump condenser has electroplating wastewater input, electroplating wastewater outfan, cold-producing medium input and cold-producing medium Outfan;
The evaporator with heat pump has cold-producing medium input and output of condenser;
The electroplating wastewater input and electroplating wastewater outfan of the heat pump condenser is respectively communicated with evaporation point by pipeline Electroplating wastewater outfan and electroplating wastewater input from device forms electroplating wastewater closed circuit;
The cold-producing medium input of the evaporator with heat pump and output of condenser are respectively communicated with heat pump condenser by pipeline Output of condenser and cold-producing medium input.
Heat pump recovery of latent heat of the present invention separates electroplating waste water treatment system with air circulation evaporation, and air circulation is steamed Send out and separate electroplating waste water treatment system by the use of humid air as carrier and its different spy of saturation water capacity at different temperatures Property electroplating wastewater is evaporated at normal temperatures and pressures and is not affected by electroplating wastewater salinity, wherein, using heat pump reclaim Water vapour condensation latent heat will greatly improve system capacity utilization rate in humid air.
Above-mentioned heat pump recovery of latent heat separates electroplating waste water treatment system with air circulation evaporation, used as a kind of optimization technique Scheme, is communicated with waste water moisturizing entrance on described electroplating wastewater closed circuit;It is further preferred that described electroplating wastewater is followed Filter and water pump are also sequentially installed with loop back path along electroplating wastewater flow direction;Still more preferably, described waste water Moisturizing entrance is located between the filter and water pump on pipeline;
As another kind of optimal technical scheme, in the air input and the air of air drier of the vapor seperator Blower fan is installed on air channel between outfan, the forced circulation for humid air in system provides power.
Above-mentioned heat pump recovery of latent heat separates electroplating waste water treatment system with air circulation evaporation, the heat pump described in it Also include compressor and needle-valve, the compressor is connected to the output of condenser and heat pump condensation of evaporator with heat pump by pipeline Between the cold-producing medium input of device;The needle-valve is connected to the output of condenser and thermo-compression evaporation of heat pump condenser by pipeline Between the cold-producing medium input of device.The Main Function of the heat pump is that the condensation for reclaiming part water vapour in humid air is dived Heat, through compressor temperature post-heating electroplating wastewater is lifted, and the evaporation separation for electroplating wastewater provides energy.
Above-mentioned air circulation evaporation separates electroplating waste water treatment system and heat pump recovery of latent heat with air circulation evaporation point Heat and mass transfer process in the vapor seperator and air drier in electroplating waste water treatment system is at normal temperatures and pressures Carry out.
Used as a kind of most preferred technique scheme, the electroplating wastewater input of above-mentioned vapor seperator is located at the evaporation and separates The top of device, the air outfan of the vapor seperator is located at the top of the vapor seperator, the vapor seperator Electroplating wastewater outfan and air input are located at the bottom of the vapor seperator, the crystal output of the vapor seperator End is positioned at the bottom of the vapor seperator;
The air input of above-mentioned air drier is located at the top of the air drier, the sky of the air drier Gas outfan is located at the bottom of the air drier, and the condensed water outfan of the air drier is located at described being air-dried The bottom of device.
The heat pump recovery of latent heat for employing above-mentioned technical proposal separates electroplating waste water treatment system with air circulation evaporation, has Have the advantages that:
First, heat pump can reclaim the latent heat of humid air water vapour condensation in dry run in air drier, Evaporation for electroplating wastewater is separated, and greatly improves its efficiency of energy utilization.
Secondly, evaporated using heat pump recovery of latent heat and air circulation and separate electroplating waste water treatment system, electroplating wastewater can be with Evaporation at normal temperatures and pressures is separated and not affected by electroplating wastewater salinity, and the scale formation in crystallization process can also be big It is big to mitigate;Crystal metal salt can by separation and recovery recycle, in air drier condensate can also recycling in electricity In depositing process, whole electroplating wastewater processing process waste whole recycling, the Green Electroplating that can be achieved on zero-emission gives up Water technology.Additionally, simple and reliable for whole system, device structure, technological difficulties are low, it is not necessary to complicated part composition Or high operation maintenance expense, and the wastewater processing technology of middle and small scale can be particularly well-suited to miniaturization.
In sum, the heat pump recovery of latent heat that the present invention is provided separates electroplating waste water treatment system not with air circulation evaporation Only energy utilization rate is high, and suitable for any concentration electroplating wastewater, can at normal temperatures and pressures realize water and crystal metal salt Recycling, turn waste into wealth.Importantly, the system equipment that the present invention is provided is simple and reliable, it is easy to miniaturization, especially fit For the wastewater treatment of middle and small scale.
Description of the drawings
Fig. 1 is the structural representation that air circulation evaporation of the present invention separates electroplating waste water treatment system;
Fig. 2 is the structural representation of heat pump of the present invention;
Fig. 3 is the structural representation that heat pump recovery of latent heat of the present invention and air circulation evaporation separate electroplating waste water treatment system Figure.
In figure, 1- waste water moisturizing entrances;2- vapor seperators;2a- vapor seperator electroplating wastewater inputs;2b- steams Send out separator electroplating wastewater outfan;2c- vapor seperator air inputs;2d- vapor seperator air outfans;2e- steams Send out separator crystal outfan;3- air driers;3c- air drier air inputs;3d- air drier air is defeated Go out end;3e- air drier condensed water inputs;4- heat pump condensers;4a- heat pump condenser electroplating wastewater inputs;4b- is warm Pump condenser electroplating wastewater outfan;4c- heat pump condenser cold-producing medium inputs;4d- heat pump condenser output of condenser;5- Evaporator with heat pump;5a- evaporator with heat pump electroplating wastewater inputs;5b- evaporator with heat pump electroplating wastewater outfans;6- coolers; 6a- cooler inputs;6b- cooler outfans;7- blower fans;8- needle-valves;9- water pumps;10- compressors;11- condensation-water drains; 12- crystals are exported;13- cooling water inlets;14- filters;15- coolant outlets;16- heaters.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of air circulation evaporation separates electroplating waste water treatment system, the air circulation evaporation separates plating Waste Water Treatment uses air as carrier and carries release moisture evaporation separation electroplating wastewater, and it includes the He of vapor seperator 2 Air drier 3, wherein,
Described vapor seperator 2 have electroplating wastewater input 2a, electroplating wastewater outfan 2b, air input 2c, Air outfan 2d, crystal outfan 2e;
Described air drier 3 has air input 3c, air outfan 3d and condensed water outfan 3e;And it is described The inside of air drier 3 is installed by cooler 6;Described cooler 6 has cooling water input 6a and cooling water outfan 6b; The Hot wet air heating flowed into from the air input 3c of air drier 3 is flowed through after cooler 6 exchanges heat by the sky of air drier 3 Gas outfan 3d is discharged.
The air outfan 2d and air input 2c of the vapor seperator 2 is respectively communicated with air drier by air channel 3 air input 3c and air outfan 3d;The crystal outfan 2e of the vapor seperator 2 is crystallized by pipeline connection Thing outlet 12;The condensed water outfan 3e of the air drier 3 passes through pipeline connection condensation-water drain 11;The cooler 6 Cooling water input 6a and cooling water outfan 6b cooling water inlet 13 and coolant outlet 15 are respectively communicated with by pipeline.
The electroplating wastewater outfan 2b of the vapor seperator 2 is connected to be formed with electroplating wastewater input 2a by pipeline Electroplating wastewater closed circuit.Filter is also sequentially installed with described electroplating wastewater closed circuit along electroplating wastewater flow direction 14th, water pump 9 and heater 16, wherein heater 16 provides energy for the evaporation of electroplating wastewater;In the filter 14 and water pump 9 Between pipeline be provided with waste water moisturizing entrance 1.In the air input 2c and the sky of air drier 3 of the vapor seperator 2 Blower fan 7 is installed on air channel between gas outfan 3d, the forced circulation for humid air in system provides power.
As shown in Fig. 2 a kind of heat pump, the heat pump is used to reclaim the water vapor condensation latent heat in humid air, it Including evaporator with heat pump 5, heat pump condenser 4, compressor 10 and needle-valve 8;Wherein,
The heat pump condenser 4 have electroplating wastewater input 4a, electroplating wastewater outfan 4b, cold-producing medium input 4c and Output of condenser 4d;
The evaporator with heat pump 5 has cold-producing medium input 5a and output of condenser 5b;
It is cold that the cold-producing medium input 5a and output of condenser 5b of the evaporator with heat pump 5 is respectively communicated with heat pump by pipeline Output of condenser 4d and cold-producing medium input 4c of condenser 4.
The compressor 10 is connected to output of condenser 5b and heat pump condenser 4 of evaporator with heat pump 5 by pipeline Between cold-producing medium input 4c;The needle-valve 8 is steamed by output of condenser 4d and heat pump that pipeline is connected to heat pump condenser 4 Send out between the cold-producing medium input 5a of device 5.
A kind of heat pump recovery of latent heat as shown in Figure 3 separates electroplating waste water treatment system with air circulation evaporation, the system It is main to be made up of air circulation evaporation separation electroplating waste water treatment system and heat pump.
Described air circulation evaporation separate electroplating waste water treatment system humid air as carrier and its in not equality of temperature The different characteristic of the lower saturation water capacity of degree evaporates at normal temperatures and pressures separation electroplating wastewater, including vapor seperator 2 and air are done Dry device 3, is heat exchange unit;
Wherein, vapor seperator 2 has electroplating wastewater input 2a, electroplating wastewater outfan 2b, air input 2c, sky Gas outfan 2d and crystal outfan 2e;Air drier 3 has air input 3c, air outfan 3d and condensed water defeated Go out to hold 3e;The electroplating wastewater input 2a of the vapor seperator 2 is located at the top of the vapor seperator 2, the evaporation point Air outfan 2d from device 2 is located at the top of the vapor seperator 2, the electroplating wastewater outfan of the vapor seperator 2 2b and air input 2c is located at the bottom of the vapor seperator 2, and the crystal outfan 2e of the vapor seperator 2 is located at The bottom of the vapor seperator 2.The air input 3c of the air drier 3 is located at the top of the air drier 3, The air outfan 3d of the air drier 3 is located at the bottom of the air drier 3, the condensation of the air drier 3 Water outfan 3e is located at the bottom of the air drier 3.
Evaporator with heat pump 5 and cooler 6 are sequentially installed with along humid air flow direction inside above-mentioned air drier 3, It is heat exchange unit;Evaporator with heat pump 5 has cold-producing medium input 5a and output of condenser 5b;Cooler 6 has cooling water defeated Enter to hold 6a and cooling water outfan 6b.
The air input 2c of above-mentioned vapor seperator 2 connects the air outfan 3d of air drier 3 by air channel, will Cold air from after the cooling of air drier 3 carries out heat transfer biography from the bottom input of vapor seperator 2 with the thermoelectricity waste electroplating in it Matter, heat up humidification;The air input that the air outfan 2d of above-mentioned vapor seperator 2 passes through pipeline connection air drier 3 3c, will heat up carries out cooling humidity reduction in the humid air input air exsiccator 3 after humidification, separate out condensed water;Wherein, Hot wet air heating First flow through evaporator with heat pump 5 to be exchanged heat, the condensation latent heat produced during recovery section steam coagulation, afterwards humid air is being flowed through Cooler 6 further exchanges heat;Additionally, in view of the consideration of the working condition cold drying of blower fan 7, it is preferred that in air drier 3 Blower fan 7 is installed on the air channel between air outfan 3d and the air input 2c of vapor seperator 2, provides dynamic for circulation air Power.
The crystal outfan 2e of above-mentioned vapor seperator 2 is by pipeline connection crystal outlet 12;It is above-mentioned to be air-dried The condensed water outfan 3e of device 3 passes through pipeline connection condensation-water drain 11;The cooling water input 6a of above-mentioned cooler 6 and cooling Water outfan 6b takes away internal system waste heat respectively by pipeline connection cooling water inlet 13 and coolant outlet 15, maintains system System is stable, while the inlet air temp of the air input 2c of vapor seperator 2 can be adjusted.
The heat pump includes compressor 10, evaporator with heat pump 5, heat pump condenser 4 and needle-valve 8, and Main Function is back The condensation latent heat of part water vapour in removing dampness air, through compressor 10 temperature post-heating electroplating wastewater is lifted, and is electroplating wastewater Evaporation separate provide energy;Above-mentioned heat pump condenser 4 has electroplating wastewater input 4a, electroplating wastewater outfan 4b, refrigeration Agent input 4c and output of condenser 4d.
Above-mentioned compressor 10 is connected to output of condenser 5b and heat pump condenser 4 of evaporator with heat pump 5 by pipeline Between cold-producing medium input 4c, the Room-temperature low-pressure refrigerant vapour exported from evaporator with heat pump 5 is compressed into by compressor 10 The refrigerant vapour of High Temperature High Pressure, then be entered in heat pump condenser 4 and carry out condensation heat release;Above-mentioned needle-valve 8 passes through pipeline It is connected between output of condenser 4d of heat pump condenser 4 and the cold-producing medium input 5a of evaporator with heat pump 5, will be cold from heat pump The high pressure refrigerant vapor of the output of condenser 4 throttles into low pressure refrigerant by needle-valve 8, then is inputted steaming in evaporator with heat pump 5 Heat absorption is sent out, becomes the refrigerant vapour of Room-temperature low-pressure.
Above-mentioned evaporator with heat pump 5 is arranged in air drier 3, and the Hot wet air heating flowed in air drier 3 is first flowed through Evaporator with heat pump 5 is exchanged heat, cooling humidity reduction, separates out condensed water;Cooler 6 is passed through, is exchanged heat with cooling water;Above-mentioned heat The electroplating wastewater input 4a of pump condenser 4 connects the electroplating wastewater outfan 2b of vapor seperator 2 by pipeline, wherein, two Filter 14 and water pump 9 are sequentially installed with along electroplating wastewater flow direction between person, will be unevaporated in vapor seperator 2 Electroplating wastewater first passes through filter 14 and filters crystal, then squeezes into the condensation that absorption refrigeration agent condensation is produced in heat pump condenser 4 Latent heat;The electroplating wastewater outfan 4b of heat pump condenser 4 connects the electroplating wastewater input 2a of vapor seperator 2 by pipeline, Will warm up the electroplating wastewater of uniform temperature from the top of vapor seperator 2 spray and under, be evaporated heat exchange with cold air.
Above-mentioned electroplating wastewater moisturizing entrance 1 is connected on the pipeline between filter 14 and water pump 9 by pipeline, to be System supplements electroplating wastewater.
Heat and mass transfer process is carried out at normal temperatures and pressures in above-mentioned vapor seperator 2 and air drier 3.
Heat pump recovery of latent heat proposed by the present invention separates electroplating waste water treatment system and follows including four with air circulation evaporation Ring, is respectively heat pump cycle, waste water circulation, air circulation and cooling water circulation.For heat pump cycle, flow through compressor 10 and pressurize High temperature refrigerant gas after intensification flows into the condensation heat release of heat pump condenser 4, and heat is passed to into electroplating wastewater;From heat pump condenser 4 high-pressure refrigerants for flowing out flow into evaporation endothermic in evaporator with heat pump 5 through the reducing pressure by regulating flow of needle-valve 8, reclaim the water in humid air The latent heat that steam is produced when condensing;The cold-producing medium flowed out from evaporator with heat pump 5 is again sucked into the pressurization of compressor 10 and heats up.For Waste water circulation, unevaporated electroplating wastewater flows through filter 14 and separates out after crystal, by the quilt of water pump 9 in vapor seperator 2 In input heat pump condenser 4, the latent heat that absorption refrigeration agent is produced when condensing heats up, and is heated to after certain temperature again from steaming The top input of separator 2 is sent out, with air heat-exchange, separation is evaporated;Final crystal flows from the bottom of vapor seperator 2 Go out.For air circulation, cold air is input into by blower fan 7 from the bottom of vapor seperator 2, and from the spray of the top of vapor seperator 2 Drench and lower thermoelectricity waste electroplating occurs heat and mass, heat up humidification, and the Hot wet air heating heated up after being humidified is from the top of vapor seperator 2 Flow out in portion;The Hot wet air heating of outflow is flowed into from the top of air drier 3, is changed with evaporator with heat pump 5 and cooler 6 successively Heat, cooling and dehumidification separates out condensed water;Cold air after heat exchange flows out from the bottom of air drier 3, by blower fan 7 again Be pressed in vapor seperator 2 carries out heat and mass with thermoelectricity waste electroplating;The condensed water of precipitation flows from the bottom of air drier 3 Go out.For cooling water circulation, cooling water is input into from one end of cooler 6, and other end output, the endogenous dampness of absorption air exsiccator 3 is empty Part latent heat in gas during water vapor condensation, waste heat in band walking system, maintains system stability.
As fully visible, heat pump cycle effect is exactly to separate to provide heat for electroplating wastewater evaporation, while reclaim evaporation separating Part latent heat when the used heat and water vapour of the humid air out of device 2 are condensed in air drier 3.Additionally, dry in air The condensed water condensed out in dry device 3 can realize zero-emission with recycling, killing three birds with one stone.And cooling water circulation can adjust From waste heat in the air themperature that the bottom of air drier 3 is discharged, and band walking system, to maintain stablizing for system mode.

Claims (10)

1. a kind of air circulation evaporation separates electroplating waste water treatment system, it is characterised in that:The air circulation evaporation separates plating Waste Water Treatment uses air as carrier and carries release moisture evaporation separation electroplating wastewater, and it includes vapor seperator (2) With air drier (3), wherein,
Described vapor seperator (2) is with electroplating wastewater input (2a), electroplating wastewater outfan (2b), air input (2c), air outfan (2d) and crystal outfan (2e);
Described air drier (3) is with air input (3c), air outfan (3d) and condensed water outfan (3e);And The inside of the air drier (3) is installed by cooler (6);
Described cooler (6) is with cooling water input (6a) and cooling water outfan (6b);
The air outfan (2d) and air input (2c) of the vapor seperator (2) is respectively communicated with by air channel and is air-dried The air input (3c) and air outfan (3d) of device (3);The crystal outfan (2e) of the vapor seperator (2) passes through Pipeline connection crystal exports (12);The condensed water outfan (3e) of the air drier (3) passes through pipeline connection condensed water Outlet (11);The cooling water input (6a) and cooling water outfan (6b) of the cooler (6) is respectively communicated with cold by pipeline But water inlet (13) and coolant outlet (15).
2. air circulation evaporation according to claim 1 separates electroplating waste water treatment system, it is characterised in that:The evaporation The electroplating wastewater outfan (2b) of separator (2) is connected by pipeline with electroplating wastewater input (2a) and to form electroplating wastewater and follow Loop back path.
3. air circulation evaporation according to claim 2 separates electroplating waste water treatment system, it is characterised in that:Described electricity Waste water moisturizing entrance (1) is communicated with waste electroplating closed circuit;Preferably, it is useless along plating on described electroplating wastewater closed circuit Water flow direction is also sequentially installed with filter (14), water pump (9) and heater (16);It is further preferred that described waste water Moisturizing entrance (1) is located between the filter (14) and water pump (9) on pipeline.
4. air circulation evaporation according to claim 3 separates electroplating waste water treatment system, it is characterised in that:In the steaming Send out and be provided with the air channel between the air input (2c) and the air outfan (3d) of air drier (3) of separator (2) Blower fan (7).
5. a kind of heat pump, it is characterised in that:The heat pump is used to reclaim the water vapor condensation latent heat in humid air, and it is wrapped Evaporator with heat pump (5) and heat pump condenser (4) are included, wherein,
The heat pump condenser (4) is with electroplating wastewater input (4a), electroplating wastewater outfan (4b), cold-producing medium input (4c) with output of condenser (4d);
The evaporator with heat pump (5) is with cold-producing medium input (5a) and output of condenser (5b);
The cold-producing medium input (5a) and output of condenser (5b) of the evaporator with heat pump (5) is respectively communicated with heat pump by pipeline The output of condenser (4d) and cold-producing medium input (4c) of condenser (4).
6. heat pump according to claim 5, it is characterised in that:Described heat pump also include compressor (10) and Needle-valve (8), the compressor (10) is connected to output of condenser (5b) and the heat pump condensation of evaporator with heat pump (5) by pipeline Between the cold-producing medium input (4c) of device (4);The needle-valve (8) is defeated by the cold-producing medium that pipeline is connected to heat pump condenser (4) Go out between end (4d) and the cold-producing medium input (5a) of evaporator with heat pump (5).
7. a kind of heat pump recovery of latent heat separates electroplating waste water treatment system with air circulation evaporation, it is characterised in that:It includes sky Gas circulating and evaporating separates electroplating waste water treatment system and heat pump, wherein,
Described air circulation evaporation separates electroplating waste water treatment system and uses air as carrier and carry and discharges moisture evaporation point From electroplating wastewater, it includes vapor seperator (2) and air drier (3), wherein,
Described vapor seperator (2) is with electroplating wastewater input (2a), electroplating wastewater outfan (2b), air input (2c), air outfan (2d) and crystal outfan (2e);
Described air drier (3) is with air input (3c), air outfan (3d) and condensed water outfan (3e);And Evaporator with heat pump (5) and cooler (6) are installed successively along air-flow direction in the inside of the air drier (3);
Described cooler (6) is with cooling water input (6a) and cooling water outfan (6b);
The air outfan (2d) and air input (2c) of the vapor seperator (2) is respectively communicated with by air channel and is air-dried The air input (3c) and air outfan (3d) of device (3);The crystal outfan (2e) of the vapor seperator (2) passes through Pipeline connection crystal exports (12);The condensed water outfan (3e) of the air drier (3) passes through pipeline connection condensed water Outlet (11);The cooling water input (6a) and cooling water outfan (6b) of the cooler (6) is respectively communicated with cold by pipeline But water inlet (13) and coolant outlet (15);
Described heat pump is used to reclaim the water vapor condensation latent heat in humid air, and it includes evaporator with heat pump (5) and heat pump Condenser (4);Evaporator with heat pump (5) in the heat pump separates electroplating wastewater processing installed in air circulation evaporation In the air drier (3) of system, for reclaiming humid air in water vapor condensation latent heat, the heat pump in the heat pump is cold Condenser (4) evaporates the heater (16) for separating electroplating waste water treatment system as the air circulation, wherein,
The heat pump condenser (4) is with electroplating wastewater input (4a), electroplating wastewater outfan (4b), cold-producing medium input (4c) with output of condenser (4d);
The evaporator with heat pump (5) is with cold-producing medium input (5a) and output of condenser (5b);
The electroplating wastewater input (4a) and electroplating wastewater outfan (4b) of the heat pump condenser (4) is respectively communicated with by pipeline The electroplating wastewater outfan (2b) of vapor seperator (2) and electroplating wastewater input (2a) form electroplating wastewater closed circuit;
The cold-producing medium input (5a) and output of condenser (5b) of the evaporator with heat pump (5) is respectively communicated with heat pump by pipeline The output of condenser (4d) and cold-producing medium input (4c) of condenser (4).
8. heat pump recovery of latent heat according to claim 7 separates electroplating waste water treatment system with air circulation evaporation, and it is special Levy and be:Waste water moisturizing entrance (1) is communicated with described electroplating wastewater closed circuit;Preferably, described electroplating wastewater is followed Filter (14) and water pump (9) are also sequentially installed with loop back path along electroplating wastewater flow direction;It is further preferred that described Waste water moisturizing entrance (1) is located between the filter (14) and water pump (9) on pipeline;
As another kind of optimal technical scheme, in the air input (2c) and air drier (3) of the vapor seperator (2) Air outfan (3d) between air channel on blower fan (7) is installed.
9. the heat pump recovery of latent heat according to claim 7 or 8 separates electroplating waste water treatment system with air circulation evaporation, its It is characterised by:Described heat pump also includes compressor (10) and needle-valve (8), and the compressor (10) is connected to by pipeline Between the output of condenser (5b) of evaporator with heat pump (5) and the cold-producing medium input (4c) of heat pump condenser (4);The needle-valve (8) output of condenser (4d) of heat pump condenser (4) and the cold-producing medium input of evaporator with heat pump (5) are connected to by pipeline (5a) between.
10. the arbitrary described air circulation evaporation of Claims 1 to 4 separates electroplating waste water treatment system, claim 7~9 times Heat pump recovery of latent heat described in one is separated in electroplating waste water treatment system with air circulation evaporation, it is characterised in that:The evaporation Heat and mass transfer process in separator (2) and air drier (3) is carried out at normal temperatures and pressures.
CN201611186122.XA 2016-12-20 2016-12-20 Heat pump latent heat recovering and air cycle evaporating separation electroplating wastewater treatment system Pending CN106673096A (en)

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CN107537167A (en) * 2017-10-09 2018-01-05 利得环境科技(北京)有限公司 Evaporating, concentrating and crystallizing system and evaporation process method
CN108147608A (en) * 2018-03-07 2018-06-12 华北电力大学(保定) It is a kind of to utilize compressed air and the multiple-effect evaporation crystal system and method for heat pump treatment of Power brine waste
CN108275743A (en) * 2018-04-10 2018-07-13 中国科学院理化技术研究所 A kind of heat-pump-type sewage treatment equipment and its processing method
CN108439512A (en) * 2018-05-17 2018-08-24 北京今大禹环境技术股份有限公司 A kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt
CN108529806A (en) * 2018-05-03 2018-09-14 广西科技大学鹿山学院 A kind of reverse osmosis concentrated water zero discharge low energy consumption device of coking wastewater and processing method
CN108622969A (en) * 2018-02-28 2018-10-09 华北水利水电大学 The high-salt wastewater spray evaporation brine of low-quality waste heat driving detaches full reclaimer and method
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CN112209551A (en) * 2020-09-28 2021-01-12 重庆希赞志汇环保科技有限公司 Salt-containing wastewater concentration system and salt water concentration method
CN113896266A (en) * 2021-11-15 2022-01-07 江苏科技大学 Compression injection combined type heat pump sewage treatment system and operation method thereof
CN114180774A (en) * 2021-12-07 2022-03-15 广东凯链环保科技有限公司 Waste acid regeneration and resource recovery system
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CN108622969A (en) * 2018-02-28 2018-10-09 华北水利水电大学 The high-salt wastewater spray evaporation brine of low-quality waste heat driving detaches full reclaimer and method
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CN108529806A (en) * 2018-05-03 2018-09-14 广西科技大学鹿山学院 A kind of reverse osmosis concentrated water zero discharge low energy consumption device of coking wastewater and processing method
CN108439512B (en) * 2018-05-17 2020-07-03 北京今大禹环境技术股份有限公司 Thermal-drive high-salinity high-organic-matter wastewater zero-discharge treatment process
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Application publication date: 20170517