CN203715317U - Low-temperature circulation evaporative crystallization device for heavy salt water - Google Patents

Low-temperature circulation evaporative crystallization device for heavy salt water Download PDF

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Publication number
CN203715317U
CN203715317U CN201420024925.5U CN201420024925U CN203715317U CN 203715317 U CN203715317 U CN 203715317U CN 201420024925 U CN201420024925 U CN 201420024925U CN 203715317 U CN203715317 U CN 203715317U
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water
hot
heat pump
pump
evaporator room
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潘大伟
单明军
王飘扬
高艺文
杨根深
李想道
窦丹妮
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University of Science and Technology Liaoning USTL
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University of Science and Technology Liaoning USTL
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Abstract

The utility model discloses a low-temperature circulation evaporative crystallization device for heavy salt water. The low-temperature circulation evaporative crystallization device comprises a circulating water pump, an evaporating chamber, an evaporating filler, a water distributor, an air blower, a condensing tube, a condensing chamber, a hot air outlet, a condensing water tank, a cold-heat dual-purpose hot pump unit, an evaporator cold water outlet, an evaporator water return hole, a hot air inlet, a water supplementing pump and a wastewater tank. A heat exchange process of the low-temperature circulation evaporative crystallization device disclosed by the utility model does not adopt a salt water heat exchanger, so that an equipment scaling and corroding problem caused by heat exchange of salt water is solved radically, and therefore, concentration range of the heavy salt water can be greatly improved. The constructed circulation evaporative device can recycle condensing heat, is low in production energy consumption and obtains pure condensed water and a dry salt product while realizing zero release of the heavy salt water.

Description

A kind of haline water cold cycle evaporated crystallization device
Technical field
The utility model relates to environmental protection device, particularly a kind of haline water cold cycle evaporated crystallization device.
Technical background
Along with the fast development of national economy, the raising of living standards of the people, the quantity discharged of city domestic sewage, agricultural drainage and trade effluent also sharply rises.According to statistics, the world has 4,200 hundred million m of surpassing every year at present 3sewage enter rivers Hai Hu, cause 1/3 fresh water to be subject to pollution in various degree; A large amount of waste water that annual petrochemical complex, metallurgy, papermaking, process hides, fermented soy, pharmacy, textile and dyeing industry etc. produce, not only quantity is many, concentration is high, and many hazardous and noxious substances that also contain have proposed stern challenge to our environment.
Evaporative crystallization is the process that solid matter is separated out from steam, solution with crystal state, is chemical process unit operation, is also one of important means of separated and purifying substances.The reach of sciences such as new functional materials, biotechnology, medical science, environment have driven the increasingly active of crystallization area research, and the new technique in crystallization field forms rapidly.Along with industrial expansion, efficient Crystallization Separation technology is more and more extensive in the application in the fields such as oil, chemical industry, biotechnology and environment protection.And adopt method of evaporating to process high strong sewage, become just gradually a utilisation technology that has developing prospect.
Consult patent documentation, relevant to the utility model has: " low-temperature evaporation condensation rainfall heat pump circulating system ", open (bulletin) number: CN102757105A; " a kind of low-temperature evaporation condensation liquefaction circulation device ", Granted publication CN202705075U.The common trait of said apparatus is to comprise cryogenic vaporization systems, condensation rainfall system, air conditioner heat pump system and PLC Controlling System, adopts evaporation and the operation of condensation alternate cycles to realize high-concentration waste aqueous waste solution solid-liquid separation.Concrete operations are: heat water to 10-100 ℃, from up to down flow into evaporator room, allow freezing air with certain speed, blow over from bottom to top, freezing air is fully contacted with high-concentration waste aqueous waste solution, when freezing air and waste liquid carry out heat exchange, temperature rises, and saturated vapor pressure rises, and water in air steam content is along with temperature rises and rises, moisture in waste liquid is taken away, solid falls into evaporator room bottom, constantly concentrated, constantly reclaims concentrated solution or the solid matter with utility value.The air that contains a large amount of saturation steam water flows into condensing chamber from evaporator room, from top to down, in condensing chamber, adopt air-conditioning system to lower the temperature to it, temperature is from 50 ℃ of rapid drawdowns to 10 ℃, and saturated vapor pressure declines rapidly, and in air, saturation moisture content declines rapidly, cause the water vapor that surpasses saturation moisture content in air to become rapidly liquid, from top to bottom as the shape that rains falls into condensing chamber bottom.Condensing chamber air is again blown into evaporator room from bottom through centrifugal blower and absorbs water vapor, and the pure water water quality that collect condensing chamber bottom can reach the requirement of life or industrial reuse water.
In existing evaporative crystallization technology or equipment, the prominent question of existence is the scale problems of heat-exchange equipment.No matter be steam heating or electrically heated, high strong sewage must be by interchanger to promote temperature, and in sewage, conventionally contain a large amount of K +, Na +, Ca 2+, Mg 2+and CO 3 2-, Cl -, SO 4 2-, NO 3 -plasma, very easily fouling on interchanger inwall, and cause the corrosion of equipment.Even if adopt corrosion resistant equipment, also need frequent heat exchanger to carry out scale removal to improve heat exchange efficiency, extension device is with using the life-span.Up to the present, this problem is not also solved well.
Utility model content
The utility model provides a kind of haline water cold cycle evaporated crystallization device, effectively solves the fouling and corrosion problem of heat-exchange equipment in existing haline water evaporation and crystal process.
A kind of haline water cold cycle evaporated crystallization device comprises: water circulating pump, evaporator room, evaporation filler, water distributor, blower fan, prolong, condensing chamber, hot-blast outlet, condensation pond, cold, hot two-purpose heat pump set, vaporizer cooling water outlet, vaporizer water return outlet, hot-wind inlet, small pump and wastewater disposal basin, wherein cold, hot two-purpose heat pump set comprises heat pump set vaporizer, compressor and heat pump set condenser, described evaporator room and condensing chamber are cubes or cylindrical shape, evaporator room and condensing chamber are communicated with by circular channel, in evaporator room, fill evaporation filler, evaporation filler top is water distributor, water distributor connects haline water inlet channel, on haline water inlet channel, connect water circulating pump, evaporator room bottom is spray water aqua storage tank, aqua storage tank is connected with wastewater disposal basin by small pump, condensation indoor location prolong, in pipe, walk recirculated cooling water, blower fan is installed in prolong top, the bottom of condensing chamber is connected by pipeline with condensation pond, the cooling water outlet of heat pump set vaporizer and water return outlet and prolong connect and compose circulating line, heat pump set condenser is connected by air channel with the hot-blast outlet of condensing chamber and the hot-wind inlet of evaporator room.
The utility model is compared with existing same device, and its beneficial effect is embodied in:
Heat transfer process of the present utility model does not adopt brine heat exchanger, has fundamentally solved the equipment scaling and the etching problem that because of salt solution heat exchange, cause, can increase substantially the concentration range of processing haline water.Constructed circulation evaporator can carry out recycle to heat of condensation, and production energy consumption is low, when realizing haline water zero release, obtains pure water of condensation and dry product salt.
Accompanying drawing explanation
Fig. 1 is a kind of haline water cold cycle evaporated crystallization device structural representation.
In figure, 1 is water circulating pump, and 2 is evaporator room, and 3 is evaporation filler, 4 is water distributor, and 5 is blower fan, and 6 is prolong, 7 is condensing chamber, and 8 is hot-blast outlet, and 9 is condensation pond, 10 is cold, hot two-purpose heat pump set, and 11 is heat pump set vaporizer, and 12 is vaporizer cooling water outlet, 13 is vaporizer water return outlet, and 14 is compressor, and 15 is heat pump set condenser, 16 is hot-wind inlet, and 17 is small pump, and 18 is wastewater disposal basin.
Embodiment
As shown in Figure 1, a kind of haline water cold cycle evaporated crystallization device, this device consists of water circulating pump 1, evaporator room 2, evaporation filler 3, water distributor 4, blower fan 5, prolong 6, condensing chamber 7, hot-blast outlet 8, condensation pond 9, cold, hot two-purpose heat pump set 10, vaporizer cooling water outlet 12, vaporizer water return outlet 13, hot-wind inlet 16, small pump 17 and wastewater disposal basin 18, and wherein cold, hot two-purpose heat pump set 10 comprises heat pump set vaporizer 11, compressor 14 and heat pump set condenser 15.
Described evaporator room 2 and condensing chamber 7 are cube shaped, the cubes bottom surface length of side is 1m, height is 2.5m, employing glass epoxy is made, evaporator room 2 and condensing chamber 7 are communicated with by circular channel, fill evaporation filler 3 in evaporator room, and evaporation filler 3 is ripple refractory honeycomb shape polypropylene, the thick 48cm of filler, specific surface area is greater than 200m 2/ m 3.Evaporation filler top is water distributor 4, for turning spurt water device, water distributor 4 connects haline water inlet channel, on haline water inlet channel, connect water circulating pump 1, evaporator room bottom is spray water aqua storage tank, aqua storage tank is connected with wastewater disposal basin 18 by small pump 17, the interior installation prolong 6 of condensing chamber 7, prolong 6 adopts the ripe copper pipe disk of Φ 16 to become, the hydrophilic aluminium fin of overcoat, pitch-row 38mm, totally 8 combs, in pipe, walk recirculated cooling water, blower fan 5 is installed in prolong 6 tops, the bottom of condensing chamber 7 is connected by pipeline with condensation pond 9, compressor 14 and heat pump set vaporizer 11 and the common formation cold, hot two-purpose of heat pump set condenser 15 unit 10, the cooling water outlet 12 of heat pump set vaporizer 11 and water return outlet 13 connect and compose circulating line with prolong 6, heat pump set condenser 15 is connected by air channel with the hot-blast outlet 8 of condensing chamber and the hot-wind inlet 16 of evaporator room.
Working process of the present utility model is as follows:
With cold, hot two-purpose heat pump set, provide Cooling and Heat Source (hot blast and recirculated cooling water), the recirculated cooling water that heat pump set is produced imports in the prolong in condensing chamber; Evaporator room in hot blast (50-65 ℃) import system simultaneously heat pump set being produced, at evaporation indoor hot air, contact with the haline water being laid on evaporation filler, carry out heat exchange, realize the evaporation of haline water, the clean steam producing is introduced condensing chamber by blower fan, in condensing chamber, contact with prolong, vapor condensation generates water of condensation, can recycle.The low level heat energy recycle that the heat discharging in condensation process is drawn as cold, hot two-purpose unit by blower fan enters evaporator room again to produce hot blast.Spray water in evaporator room is fallen in the receiving tank of bottom, adopts recycle pump cloth to realize circulating and evaporating to evaporation filler, and haline water produces crystallization after repeatedly concentrating, and its crystal reclaims as dry product salt.

Claims (1)

1. a haline water cold cycle evaporated crystallization device, is characterized in that this device comprises: water circulating pump, evaporator room, evaporation filler, water distributor, blower fan, prolong, condensing chamber, hot-blast outlet, condensation pond, cold, hot two-purpose heat pump set, vaporizer cooling water outlet, vaporizer water return outlet, hot-wind inlet, small pump and wastewater disposal basin form, and wherein cold, hot two-purpose heat pump set comprises heat pump set vaporizer, compressor and heat pump set condenser, described evaporator room and condensing chamber are cubes or cylindrical shape, evaporator room and condensing chamber are communicated with by circular channel, in evaporator room, fill evaporation filler, evaporation filler top is water distributor, water distributor connects haline water inlet channel, on haline water inlet channel, connect water circulating pump, evaporator room bottom is spray water aqua storage tank, aqua storage tank is connected with wastewater disposal basin by small pump, condensation indoor location prolong, in pipe, walk recirculated cooling water, blower fan is installed in prolong top, the bottom of condensing chamber is connected by pipeline with condensation pond, the cooling water outlet of heat pump set vaporizer and water return outlet and prolong connect and compose circulating line, heat pump set condenser is connected by air channel with the hot-blast outlet of condensing chamber and the hot-wind inlet of evaporator room.
CN201420024925.5U 2014-01-14 2014-01-14 Low-temperature circulation evaporative crystallization device for heavy salt water Active CN203715317U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104495966A (en) * 2014-12-17 2015-04-08 西北工业大学 Bubble humidification and heat pump cycle coupled sea water desalination system and process method
CN105174332A (en) * 2015-07-16 2015-12-23 浙江大学 Method for processing garbage leachate and device thereof
CN105344119A (en) * 2015-11-30 2016-02-24 浙江奇彩环境科技有限公司 Low-temperature spray evaporation waste water treatment device and waste water treatment method
CN105731572A (en) * 2016-04-06 2016-07-06 东莞东元环境科技有限公司 Novel heat pump evaporation heat recovery combined device and efficient effluent concentration method
CN105819531A (en) * 2016-05-12 2016-08-03 上海朴是环境科技有限公司 Energy-saving heat pump type intermediate-temperature spray evaporation system
CN109133230A (en) * 2018-09-18 2019-01-04 苏州科大环境发展股份有限公司 A kind of cryogenic vaporization systems
CN112707459A (en) * 2020-12-28 2021-04-27 国网河北省电力有限公司电力科学研究院 Evaporation concentration equipment for simulating meteorological environment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104495966A (en) * 2014-12-17 2015-04-08 西北工业大学 Bubble humidification and heat pump cycle coupled sea water desalination system and process method
CN104495966B (en) * 2014-12-17 2016-04-13 西北工业大学 The seawater desalination system that a kind of bubbling humidification is coupled with heat pump cycle and processing method
CN105174332A (en) * 2015-07-16 2015-12-23 浙江大学 Method for processing garbage leachate and device thereof
CN105344119A (en) * 2015-11-30 2016-02-24 浙江奇彩环境科技有限公司 Low-temperature spray evaporation waste water treatment device and waste water treatment method
CN105731572A (en) * 2016-04-06 2016-07-06 东莞东元环境科技有限公司 Novel heat pump evaporation heat recovery combined device and efficient effluent concentration method
CN105731572B (en) * 2016-04-06 2019-02-05 东莞东元环境科技股份有限公司 Thermo-compression evaporation recuperation of heat combination unit and waste liquid efficient concentration method
CN105819531A (en) * 2016-05-12 2016-08-03 上海朴是环境科技有限公司 Energy-saving heat pump type intermediate-temperature spray evaporation system
CN105819531B (en) * 2016-05-12 2019-05-10 上海朴是环境科技股份有限公司 A kind of energy saving heat pump medium temperature spray evaporation system
CN109133230A (en) * 2018-09-18 2019-01-04 苏州科大环境发展股份有限公司 A kind of cryogenic vaporization systems
CN112707459A (en) * 2020-12-28 2021-04-27 国网河北省电力有限公司电力科学研究院 Evaporation concentration equipment for simulating meteorological environment

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