CN108569734A - A kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt - Google Patents
A kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt Download PDFInfo
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- CN108569734A CN108569734A CN201810473686.4A CN201810473686A CN108569734A CN 108569734 A CN108569734 A CN 108569734A CN 201810473686 A CN201810473686 A CN 201810473686A CN 108569734 A CN108569734 A CN 108569734A
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- 150000003839 salts Chemical class 0.000 title claims abstract description 58
- 239000002351 wastewater Substances 0.000 title claims abstract description 50
- 208000028659 discharge Diseases 0.000 title claims abstract description 35
- 230000000694 effects Effects 0.000 claims abstract description 185
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 238000007791 dehumidification Methods 0.000 claims abstract description 27
- 239000002918 waste heat Substances 0.000 claims abstract description 27
- 238000011084 recovery Methods 0.000 claims abstract description 22
- 238000002425 crystallisation Methods 0.000 claims abstract description 15
- 230000008025 crystallization Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000012546 transfer Methods 0.000 claims abstract description 11
- 239000013078 crystal Substances 0.000 claims abstract description 6
- 238000010612 desalination reaction Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 76
- 239000012530 fluid Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 21
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 3
- 230000003252 repetitive effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- -1 humidifier Chemical class 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 1
- 230000007774 longterm Effects 0.000 abstract description 4
- 239000013043 chemical agent Substances 0.000 abstract description 3
- 230000004308 accommodation Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Air Humidification (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a kind of thermal drivers high organic wastewater zero-discharge treatment systems with high salt, specifically include humidifier, dehumidifier and waste-heat recovery device, the high organic wastewater with high salt of pending certain temperature is after filtering pre-processes, it sequentially enters the first effect humidifier, the second effect humidifier and third effect humidifier to be concentrated, the Hot wet air heating that the first effect humidifier generates returns to the first effect humidifier after the first effect dehumidifier cool-down dehumidification；The Hot wet air heating that second effect humidifier generates returns to the second effect humidifier after waste-heat recovery device cool-down dehumidification；The Hot wet air heating that third effect humidifier generates is immediately discharged to air, and the high organic wastewater with high salt close to saturation state that bottom generates enters crystallization tank, cools down at room temperature, the crystal salt of generation enters desalination treatment process.This system flow is succinct, it is easy to operate, do not add that chemical agent, mass-and heat-transfer are efficient, equipment investment is small, small accommodation area, it is energy-saving, can run steadily in the long term, application range.
Description
Technical field
The invention belongs to field of waste water treatment, and in particular to a kind of zero discharge treatment system for high organic wastewater with high salt
System.
Background technology
The waste water that the industries such as petrochemical industry, coal chemical industry, metallurgy, pharmacy, printing and dyeing, papermaking are discharged in process of production has height
The characteristics of salt, high organic matter, for usual salt content in 3000mg/L or more, COD is in 2000mg/L or more, and temperature is higher, contains
There is the poisonous and hazardous organic matter such as a large amount of aromatic compounds, heterocyclic compound, hydrocarbon compound, even across processing with heel row
Be put into water body still can cause security risk to water environment.Therefore many local governments require this kind of enterprise that must accomplish zero liquid
Body discharges, abbreviation zero-emission.
Heat exchange cooling processing, pretreatment, life are generally comprised to the zero-discharge treatment system of high organic wastewater with high salt at present
A series of system units such as change processing, advanced oxidation, sand filtration, ultrafiltration, reverse osmosis, the concentrated water in addition generated to system will also carry out
Oxidation, softening and concentration, finally use evaporation and crystallization system to form solid salt.That there are flows is superfluous for existing zero-discharge treatment system
It is long, complicated for operation, stability is poor, energy reagent consumption is high, take up a large area, operating cost is high, solid salt is because of content of organics
It is high and the shortcomings of be difficult to dispose, it is difficult to operation steady in a long-term, application range are restricted.
Invention content
It is an object of the invention to design a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt, solve above-mentioned
Problem.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt, including humidifier, dehumidifier and waste-heat recovery device；
Humidifier quantity is three, and the respectively first effect humidifier, the second effect humidifier and third imitate humidifier, and the quantity of dehumidifier is
Two, the respectively first effect dehumidifier and second imitates dehumidifier.
The pending high organic wastewater with high salt with certain temperature after filtering pre-processes with preheated through heat exchanger
The first effect humidifier circulation fluid mixing, is delivered to later at the top of the first effect humidifier, through distributor disperse with from institute
The air for stating the entrance of the first effect humidifier bottom carries out counter current contacting by the filler inside the first effect humidifier；Described
The saturation Hot wet air heating being discharged at the top of one effect humidifier（Relative humidity RH=100%）Through fan（Or wind turbine）Pressure-increasing unit is to described
First effect dehumidifier returns again to the first effect humidifier through cool-down dehumidification and recycles；Hot wet air heating subtracts in first effect
The condensed water of generation is condensed in wet device through pipelined to battery limit (BL)；
The second effect humidifier circulation fluid delivers into the first effect dehumidifier through pump and carries out heat exchange, institute with Hot wet air heating
The raising of the second effect humidifier circulation fluid temperature is stated, the second effect humidifier circulation fluid imitates humidifier discharge with described first later
Concentration after high organic wastewater with high salt be mixed into it is described second effect humidifier at the top of；
It is described second effect humidifier at the top of enter mixing liquid through distributor disperse with from it is described second effect humidifier bottom into
The air entered imitates humidifier inner stuffing by described second and carries out counter current contacting, is discharged at the top of the second effect humidifier full
The Hot wet air heating of sum（Relative humidity RH=100%）Through fan（Or wind turbine）Supercharging enters waste-heat recovery device；
The waste-heat recovery device includes mainly the second effect dehumidifier, heat pump, air heater, heat exchanger and radiating part
Part, the Hot wet air heating of the second effect humidifier discharge（Relative humidity RH=100%）Through fan（Or wind turbine）Described in supercharging enters
Second effect dehumidifier cool-down dehumidification, the second effect humidifier cycle is back to after heating up later by the air heater to be made
With；Hot wet air heating condenses the condensed water of generation in the second effect dehumidifier and is exported to out-of-bounds through pipeline, the condensation heat of generation
Entered in heat pump cold water side recirculated water by heat exchange, condensation heat is transferred to through the heat pump in the heat pump cold water side recirculated water
In the recirculated water of heat-pump hot-water side；Condensation heat in the recirculated water of the heat-pump hot-water side is on the one hand by described in heat exchanger heating
On the one hand first effect humidifier circulation fluid heats the air of the second effect dehumidifier discharge, separately by the air heater
On the one hand the waste heat in the recirculated water of the heat-pump hot-water side is discharged by the thermal component；
High organic wastewater with high salt after the concentration of the second effect humidifier discharge, it is mixed with third effect humidifier circulation fluid
Be delivered to after conjunction at the top of third effect humidifier, dispersion of the mixing liquid through distributor and the third imitate humidifier bottom into
The air entered imitates humidifier inner stuffing by the third and carries out counter current contacting, the heat being discharged at the top of the third effect humidifier
Humid air is fed directly to air；
The high organic wastewater with high salt close to saturation state of the third effect humidifier discharge enters in crystallization tank, at room temperature
Cool down, the crystal salt generated in the crystallization tank enters desalination treatment process, and the coolant liquid in the crystallization tank is back to through pump
The third imitates humidifier.
The system flow can be divided into n humidifier（n≥2）With n-1 dehumidifier（n≥2）, the (n-1)th effect humidifier and the
N-1 imitates dehumidifier composition the (n-1)th effect humidification-dehumidification unit（n≥2）, wherein air be closed circulation mode pass in and out humidifier and
Dehumidifier, or open mode（Battery limit (BL) air directly imitates humidifier through wind turbine into (n-1)th, then passes through the (n-1)th effect dehumidifier
Air bleeding valve is expelled to battery limit (BL)）.
The n-1 effect humidification-dehumidification units combine for one or more repetitive units, and the n-th effect humidifier is that independent humidification is single
Member.
The waste-heat recovery device is returned for Hot wet air heating cool-down dehumidification in the (n-1)th wet device of effect of (n-1)th effect humidification-dehumidification unit
Receive condensation heat.
High organic wastewater with high salt enters at the top of the n-th effect humidifier in the n-th effect humidifier, is distributed in and is filled out by distributor
Expect that surface carries out countercurrent mass transfer heat transfer with the air entered from the n-th humidifier bottom.
Filler is mellapak packing or corrugated wire gauze packing or grid packing in the n-th effect humidifier.
Air passes through fan（Or wind turbine）Supercharging enters from the n-th effect humidifier bottom.
The certain temperature of pending high organic wastewater with high salt is 20-100 DEG C or more.
The heat pump is water source hot pump in low temp or water source medium temperature heat pump or water source high-temperature heat pump.
The thermal component is air-cooled liquid chillers or water-cooled cold water unit or fan.
Beneficial effects of the present invention can be summarized as follows：
1, the present invention provides a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt, high organic matter with high salt is realized
Zero liquid of waste water discharges.
2, the condensed water that Hot wet air heating condensation generates in system, can be used as production system water or circulating cooling system is mended
Water, the production water rate of recovery is up to 80% or more.
3, total system only has three humidifier, dehumidifier and waste-heat recovery device major parts, and flow is succinct, floor space
Save, equipment investment expense it is low, it is easy to operate, can run steadily in the long term.
4, system is not required to cool down to high organic wastewater with high salt, is handled using the waste heat of raw water, and waste heat recovery is arranged
Device, it is energy-saving.
Chemical agent is not added when 5, running, and non-secondary pollution, operating cost is low.
Description of the drawings
Fig. 1 is the system flow chart of the present invention.
Main element symbol description is as follows：
1, the first effect humidifier 2, second imitates humidifier
3, third effect humidifier 4, first imitates dehumidifier
5, the second effect dehumidifier 6, heat pump
7, heat exchanger 8, thermal component
9, air heater 10, filter device
11, fan（Or wind turbine）12, distributor
13, pump 14, crystallization tank
21, high organic wastewater 22 with high salt, condensed water
23, battery limit (BL) air 24, crystal salt
61, heat pump cold water side 62, heat-pump hot-water side.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below to this
Invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
A kind of flow chart of thermal drivers as shown in Figure 1 21 zero-discharge treatment system of high organic wastewater with high salt, including packet
Include humidifier, dehumidifier and waste-heat recovery device；Humidifier quantity is three, the respectively first effect effect humidification of humidifier 1, second
Device 2 and third imitate humidifier 3, and the quantity of dehumidifier is two, and the respectively first effect dehumidifier 4 and second imitates dehumidifier 5.
The pending high organic wastewater 21 with high salt with certain temperature preheats after filtering pre-processes with through heat exchanger 7
The first effect 1 circulation fluid of humidifier mixing, be delivered to the first effect humidifier 1 top later, disperse through distributor 12
It is connect with adverse current is carried out by the filler inside the first effect humidifier 1 from the air that the first effect humidifier, 1 bottom enters
It touches；The saturation Hot wet air heating that first effect humidifier, 1 top is discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 increase
Pressure is delivered to the first effect dehumidifier 4, and returning again to the first effect humidifier 1 through cool-down dehumidification recycles；Hot wet air heating
The condensed water 22 of generation is condensed through pipelined to battery limit (BL) in the first effect dehumidifier 4；
Second effect 2 circulation fluid of humidifier delivers into the first effect dehumidifier 4 through pump 13 and carries out hot friendship with Hot wet air heating
It changes, described second, which imitates 2 circulation fluid temperature of humidifier, increases, and second effect 2 circulation fluid of humidifier adds with first effect later
High organic wastewater 21 with high salt after the concentration that wet device 1 is discharged is mixed into 2 top of the second effect humidifier；
Described second, which imitates the mixing liquid that 2 top of humidifier enters, disperses to imitate 2 bottom of humidifier with from described second through distributor 12
The air that portion enters imitates 2 inner stuffing of humidifier by described second and carries out counter current contacting, the 2 top row of the second effect humidifier
The Hot wet air heating of the saturation gone out（Relative humidity RH=100%）Through fan（Or wind turbine）11 superchargings enter waste-heat recovery device；
The waste-heat recovery device includes mainly the second effect dehumidifier 5, heat pump 6, air heater 9, heat exchanger 7 and heat dissipation
Component 8, the Hot wet air heating that the second effect humidifier 2 is discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 be pressurized into
Enter the second effect 5 cool-down dehumidification of dehumidifier, second effect is back to after heating up later by the air heater 9 and is humidified
Device 2 recycles；Hot wet air heating condenses the condensed water 22 of generation in the second effect dehumidifier 5 and is exported to out-of-bounds through pipeline,
The condensation heat of generation is entered by heat exchange in 61 recirculated water of heat pump cold water side, condensation heat in 61 recirculated water of heat pump cold water side
It is transferred in 62 recirculated water of heat-pump hot-water side through the heat pump 61；Condensation heat in 62 recirculated water of heat-pump hot-water side is on the one hand
The first effect 1 circulation fluid of humidifier is heated by the heat exchanger 7, is on the one hand heated by the air heater 9 described
The air that second effect dehumidifier 5 is discharged, is on the other hand discharged by the thermal component 8 in 62 recirculated water of heat-pump hot-water side
Waste heat；
High organic wastewater 21 with high salt after the concentration that the second effect humidifier 2 is discharged is recycled with third effect humidifier 3
3 top of third effect humidifier is delivered to after liquid mixing, mixing liquid imitates humidifier 3 through the dispersion of distributor 12 with the third
The air that bottom enters imitates 3 inner stuffing of humidifier by the third and carries out counter current contacting, 3 top of third effect humidifier
The Hot wet air heating of discharge is fed directly to air；
The high organic wastewater 21 with high salt close to saturation state that the third effect humidifier 3 is discharged enters in crystallization tank 14,
Cool down at room temperature, the crystal salt 24 generated in the crystallization tank 14 enters desalination treatment process, the cooling in the crystallization tank 14
Liquid is back to the third through pump 13 and imitates humidifier 3.
In a more preferred embodiment, the system flow can be divided into n humidifier（n≥2）With n-1 dehumidifier（n
≥2）, the (n-1)th effect humidifier and the (n-1)th effect dehumidifier composition (n-1)th imitate humidification-dehumidification unit（n≥2）, wherein air is to close
Close endless form disengaging humidifier and dehumidifier, or open mode（Battery limit (BL) air 23 directly adds into the (n-1)th effect through wind turbine
Wet device, then battery limit (BL) is expelled to by the (n-1)th effect dehumidifier air bleeding valve）.
In a more preferred embodiment, the n-1 effect humidification-dehumidification units combine for one or more repetitive units, described
N-th effect humidifier is independent humidifying unit.
In a more preferred embodiment, (n-1)th effect of the waste-heat recovery device for (n-1)th effect humidification-dehumidification unit
Hot wet air heating cool-down dehumidification recovering condensing heat in wet device.
In a more preferred embodiment, high organic wastewater 21 with high salt imitates humidifier top from n-th in the n-th effect humidifier
Portion enters, and be distributed in filler surface by distributor carries out countercurrent mass transfer heat transfer with the air entered from the n-th humidifier bottom.
In a more preferred embodiment, filler is mellapak packing or corrugated wire gauze packing or lattice in the n-th effect humidifier
Grid filler.
In a more preferred embodiment, air passes through fan（Or wind turbine）11 superchargings enter from the n-th effect humidifier bottom.
In a more preferred embodiment, the certain temperature of pending high organic wastewater 21 with high salt be 20-100 DEG C or with
On.
In a more preferred embodiment, the heat pump 6 is water source hot pump in low temp or water source medium temperature heat pump or water source high warm
Pump.
In a more preferred embodiment, the thermal component 8 is air-cooled liquid chillers or water-cooled cold water unit or wind
Fan.
In the particular embodiment, in order to more clearly state the present invention, 1 couple of present invention further retouches below in conjunction with the accompanying drawings
It states.
The purpose of the present invention is making full use of the waste heat of high organic wastewater 21 with high salt, thermal drivers zero discharge treatment work is formed
Skill.Entire technological process includes mainly three humidifier, dehumidifier and waste-heat recovery device environment divisions, and flow is succinct, operates
It is convenient, do not add that chemical agent, mass-and heat-transfer and heat recovery efficiency are high, operating cost is low, equipment investment is small, small accommodation area,
It can run, have a wide range of application steadily in the long term.
Wherein, humidifier is divided into the first effect humidifier, the second effect humidifier ... n-th imitates humidifier（n=1、2、3…）, specifically
Humidifier number determines that preferably n=1,2,3 are three humidifiers, and also referred to as triple effect is humidified according to owner's waste water temperature.
Dehumidifier is divided into the first effect dehumidifier, the second effect dehumidifier ... (n-1)th imitates dehumidifier（n=2、3…）, specific dehumidification
Device number determines that preferably n=2,3 are two dehumidifiers, also referred to as two effect dehumidifying according to humidifier number.
Humidifier is not fixed with dehumidifier quantity in technique, and n effect humidifiers and n-1 effect dehumidifiers may be used（n=1、2、
3、4…）, the (n-1)th effect humidifier and (n-1)th effect dehumidifier composition the (n-1)th effect humidification-dehumidification unit, wherein air follow to be closed
Ring mode passes in and out humidifier and dehumidifier, or open mode, battery limit (BL) have the air of certain temperature through wind turbine directly into
Humidifier carries out heating humidification, then carries out cool-down dehumidification by dehumidifier, and battery limit (BL) is expelled to finally by dehumidifier air bleeding valve.
Waste-heat recovery device is positioned over last effect heat of thermal drivers 21 zero-discharge treatment system of high organic wastewater with high salt
The position of humid air cool-down dehumidification recovering condensing heat.
Using triple effect humidification and two effect dehumidifications in the present embodiment, humidifier is respectively the first effect humidifier 1, second effect humidification
Device 2 and third imitate humidifier 3, and dehumidifier is respectively the first effect dehumidifier 4 and second effect dehumidifier 5.
The pending high organic wastewater 21 with high salt with certain temperature is after filter device 10 is filtered pretreatment
It is mixed with the first effect 1 circulation fluid of humidifier preheated through heat exchanger 7,1 top of the first effect humidifier is delivered to later, through distributor
12 dispersions carry out counter current contacting with from the air that the first 1 bottom of effect humidifier enters by the filler inside the first effect humidifier 1,
Improve the mass-and heat-transfer efficiency in the first effect humidifier 1, the saturation Hot wet air heating that 1 top of the first effect humidifier is discharged（It is relatively wet
Spend RH=100%）Through fan（Or wind turbine）11 pressure-increasing units return again to the first effect humidification to the first effect dehumidifier 4, through cool-down dehumidification
Device 1 recycles.Hot wet air heating condenses the condensed water 22 of generation through pipelined to battery limit (BL) in the first effect dehumidifier 4.
Second effect 2 circulation fluid of humidifier delivers into the first effect dehumidifier 4 through pump 13 and carries out heat exchange with Hot wet air heating, the
Two effect 2 circulation fluid temperature of humidifier increase, after the concentration that the second effect 2 circulation fluid of humidifier and the first effect humidifier 1 are discharged later
High organic wastewater 21 with high salt be mixed into the top of the second effect humidifier 2.
The mixing liquid that second effect humidifier 2 top enters through distributor 12 disperse with from the second effect 2 bottom of humidifier into
The air entered carries out counter current contacting by the second effect 2 inner stuffing of humidifier, improves the mass-and heat-transfer effect in the second effect humidifier 2
Rate, the Hot wet air heating for the saturation that 2 top of the second effect humidifier is discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 superchargings
Into waste-heat recovery device.
Waste-heat recovery device includes mainly the second effect dehumidifier 5, heat pump 6, air heater 9, heat exchanger 7 and thermal component
8.The Hot wet air heating that second effect humidifier 2 is discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 superchargings enter the second effect
5 cool-down dehumidification of dehumidifier is back to the second effect humidifier 2 and recycles after heating up later by air heater 9；Hot wet air heating
The condensed water 22 of generation is condensed in the second effect dehumidifier 5 to export to out-of-bounds through pipeline, the condensation heat of generation by heat exchange into
Enter in 61 recirculated water of heat pump cold water side, condensation heat is transferred to heat-pump hot-water side 62 through heat pump 6 and follows in 61 recirculated water of heat pump cold water side
In ring water.On the one hand condensation heat in 62 recirculated water of heat-pump hot-water side is imitated humidifier 1 by 7 heat make-up first of heat exchanger and is recycled
Liquid institute calorific requirement；On the one hand pass through the heating of air heater 9 second effect, 5 outlet air of dehumidifier；On the other hand pass through radiating part
The waste heat in 62 recirculated water of heat-pump hot-water side is discharged in part 8, to ensure that heat pump 6 works normally, safeguards waste heat reclaiming process
Stablize.
High organic wastewater 21 with high salt after the cooling concentration that second effect humidifier 2 is discharged is recycled with third effect humidifier 3
Be delivered to third effect humidifier 3 top after liquid mixing, dispersion of the mixing liquid through distributor 12 and third imitate 3 bottom of humidifier into
The air entered imitates 3 inner stuffing of humidifier by third and carries out counter current contacting, the wet sky of heat being discharged from 3 top of third effect humidifier
Gas is fed directly to air.
Third is imitated the high organic wastewater 21 with high salt close to saturation that humidifier 3 is discharged and is entered in crystallization tank 14, in room temperature
Lower cooling, the crystal salt 24 generated in crystallization tank 14 enter desalination treatment process, and the coolant liquid in crystallization tank 14 is back to through pump 6
Third imitates humidifier 3.
Heat pump 6 is water source hot pump in low temp or water source medium temperature heat pump or water source high-temperature heat pump；Thermal component 8 is air-cooled cold water
Unit or water-cooled cold water unit or other can be used in heat dissipation equipment or unit；Filler is that mellapak packing or net ripple are filled out
Material or grid packing or other fillers to conduct heat conducive to gas-liquid mass transfer.
The present invention is described in detail above by specific and preferred embodiment, but those skilled in the art should be bright
In vain, the invention is not limited in embodiment described above, all within the spirits and principles of the present invention, made by it is any modification,
Equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt, including humidifier, dehumidifier and waste heat recovery dress
It sets；Humidifier quantity is three, and the respectively first effect humidifier, the second effect humidifier and third imitate humidifier, the number of dehumidifier
Amount is two, the respectively first effect dehumidifier and the second effect dehumidifier, which is characterized in that including following system flow：
The pending high organic wastewater with high salt with certain temperature through filtering pre-process after with preheated through heat exchanger described in
First effect humidifier circulation fluid mixing, is delivered to later at the top of the first effect humidifier, through distributor disperse with from described the
The filler that the air that one effect humidifier bottom enters is imitated by described first inside humidifier carries out counter current contacting；First effect
The saturation Hot wet air heating being discharged at the top of humidifier（Relative humidity RH=100%）Through fan（Or wind turbine）Pressure-increasing unit is to described first
Dehumidifier is imitated, returning again to the first effect humidifier through cool-down dehumidification recycles；Hot wet air heating is in the first effect dehumidifier
The condensed water that middle condensation generates is through pipelined to battery limit (BL)；
The second effect humidifier circulation fluid delivers into the first effect dehumidifier through pump and carries out heat exchange, institute with Hot wet air heating
The raising of the second effect humidifier circulation fluid temperature is stated, the second effect humidifier circulation fluid imitates humidifier discharge with described first later
Concentration after high organic wastewater with high salt be mixed into it is described second effect humidifier at the top of；
It is described second effect humidifier at the top of enter mixing liquid through distributor disperse with from it is described second effect humidifier bottom into
The air entered imitates humidifier inner stuffing by described second and carries out counter current contacting, is discharged at the top of the second effect humidifier full
The Hot wet air heating of sum（Relative humidity RH=100%）Through fan（Or wind turbine）Supercharging enters waste-heat recovery device；
The waste-heat recovery device includes mainly the second effect dehumidifier, heat pump, air heater, heat exchanger and radiating part
Part, the Hot wet air heating of the second effect humidifier discharge（Relative humidity RH=100%）Through fan（Or wind turbine）Described in supercharging enters
Second effect dehumidifier cool-down dehumidification, the second effect humidifier cycle is back to after heating up later by the air heater to be made
With；Hot wet air heating condenses the condensed water of generation in the second effect dehumidifier and is exported to out-of-bounds through pipeline, the condensation heat of generation
Entered in heat pump cold water side recirculated water by heat exchange, condensation heat is transferred to through the heat pump in the heat pump cold water side recirculated water
In the recirculated water of heat-pump hot-water side；Condensation heat in the recirculated water of the heat-pump hot-water side is on the one hand by described in heat exchanger heating
On the one hand first effect humidifier circulation fluid heats the air of the second effect dehumidifier discharge, separately by the air heater
On the one hand the waste heat in the recirculated water of the heat-pump hot-water side is discharged by the thermal component；
High organic wastewater with high salt after the concentration of the second effect humidifier discharge, it is mixed with third effect humidifier circulation fluid
Be delivered to after conjunction at the top of third effect humidifier, dispersion of the mixing liquid through distributor and the third imitate humidifier bottom into
The air entered imitates humidifier inner stuffing by the third and carries out counter current contacting, the heat being discharged at the top of the third effect humidifier
Humid air is fed directly to air；
The high organic wastewater with high salt close to saturation state of the third effect humidifier discharge enters in crystallization tank, at room temperature
Cool down, the crystal salt generated in the crystallization tank enters desalination treatment process, and the coolant liquid in the crystallization tank is back to through pump
The third imitates humidifier.
2. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 1, it is characterised in that：Institute
N humidifier can be divided by stating system flow（n≥2）With n-1 dehumidifier（n≥2）, the (n-1)th effect humidifier and the (n-1)th effect subtract
Wet the (n-1)th effect of device composition humidification-dehumidification unit（n≥2）, wherein air is that closed circulation mode passes in and out humidifier and dehumidifier,
Or open mode（Battery limit (BL) air directly imitates humidifier through wind turbine into (n-1)th, then passes through the (n-1)th effect dehumidifier air bleeding valve
It is expelled to battery limit (BL)）.
3. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 2, it is characterised in that：Institute
It states n-1 effect humidification-dehumidification units to combine for one or more repetitive units, the n-th effect humidifier is independent humidifying unit.
4. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 2, it is characterised in that：Institute
Waste-heat recovery device is stated for Hot wet air heating cool-down dehumidification recycling condensation in the (n-1)th wet device of effect of (n-1)th effect humidification-dehumidification unit
Heat.
5. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 2, it is characterised in that：Institute
It states high organic wastewater with high salt in the n-th effect humidifier at the top of the n-th effect humidifier to enter, filler surface is distributed in by distributor
Countercurrent mass transfer heat transfer is carried out with the air entered from the n-th humidifier bottom.
6. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 2, it is characterised in that：Institute
It is mellapak packing or corrugated wire gauze packing or grid packing to state filler in the n-th effect humidifier.
7. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 2, it is characterised in that：It is empty
Gas passes through fan（Or wind turbine）Supercharging enters from the n-th effect humidifier bottom.
8. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 1, it is characterised in that：It waits for
The certain temperature of the high organic wastewater with high salt of processing is 20-100 DEG C or more.
9. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 1, it is characterised in that：Institute
It is water source hot pump in low temp or water source medium temperature heat pump or water source high-temperature heat pump to state heat pump.
10. a kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt according to claim 1, it is characterised in that：
The thermal component is air-cooled liquid chillers or water-cooled cold water unit or fan.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810473686.4A CN108569734A (en) | 2018-05-17 | 2018-05-17 | A kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810473686.4A CN108569734A (en) | 2018-05-17 | 2018-05-17 | A kind of thermal drivers high organic wastewater zero-discharge treatment system with high salt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220243931A1 (en) * | 2018-12-27 | 2022-08-04 | Coway Co., Ltd. | Multifunctional storage system having separate cleaning flow passage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925883A (en) * | 2015-06-29 | 2015-09-23 | 同济大学 | Concentrated salt waste water energy-saving treatment device |
| WO2017021884A1 (en) * | 2015-08-03 | 2017-02-09 | Nereid Sa | Water distillation system |
| CN208394812U (en) * | 2018-05-17 | 2019-01-18 | 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 treatment system with high salt |
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2018
- 2018-05-17 CN CN201810473686.4A patent/CN108569734A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925883A (en) * | 2015-06-29 | 2015-09-23 | 同济大学 | Concentrated salt waste water energy-saving treatment device |
| WO2017021884A1 (en) * | 2015-08-03 | 2017-02-09 | Nereid Sa | Water distillation system |
| CN208394812U (en) * | 2018-05-17 | 2019-01-18 | 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 treatment system with high salt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220243931A1 (en) * | 2018-12-27 | 2022-08-04 | Coway Co., Ltd. | Multifunctional storage system having separate cleaning flow passage |
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