CN107485871A - A kind of Desulphurization for Coal-fired Power Plant wastewater zero discharge system and its processing method - Google Patents
A kind of Desulphurization for Coal-fired Power Plant wastewater zero discharge system and its processing method Download PDFInfo
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- CN107485871A CN107485871A CN201710938055.0A CN201710938055A CN107485871A CN 107485871 A CN107485871 A CN 107485871A CN 201710938055 A CN201710938055 A CN 201710938055A CN 107485871 A CN107485871 A CN 107485871A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0058—Use of waste energy from other processes or sources, e.g. combustion gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0094—Evaporating with forced circulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- 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
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention discloses a kind of Desulphurization for Coal-fired Power Plant wastewater zero discharge system and its processing method, the system includes the evaporation and concentration separator being arranged between boiler and desulfurizing tower, and being concentrated by evaporation separator includes the evaporation channel and heat transfer path in parallel superposition above and below double W types；Liquid separation groove is respectively arranged with the top of W types in evaporation channel, W types bottom is respectively arranged with collecting tank；Along flue gas opposite direction, delivery pump is provided between adjacent collecting tank and liquid separation groove；The collecting tank of the porch of evaporation channel is connected by concentrated water pump with the charging aperture of whizzer, and the leakage fluid dram of whizzer is connected by back water pump with the collecting tank in the exit of evaporation channel, and the collecting tank in the exit of evaporation channel is communicated with waste water pump.The system carries out circulating-heating evaporation and concentration using the fume afterheat that boiler is discharged by being concentrated by evaporation the desulfurization wastewater that separator is discharged to desulfurizing tower, and its processing method can realize desulfurization wastewater zero-emission.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to a kind of Desulphurization for Coal-fired Power Plant wastewater zero discharge system and its
Processing method, it is mainly used in Desulphurization for Coal-fired Power Plant wastewater treatment.
Background technology
The desulfurization wastewater of coal-burning power plant's Limestone-gypsum Wet Flue Gas Desulfurization Process system output is high rigidity, high chloride ion, high sulfuric acid
The high slat-containing wastewater of root, high heavy metal, the three traditional header wastewater processing technologies used, it can not meet increasingly strict at present
Environmental requirement.In order to maintain the stable operation of desulphurization system, rational chlorion concentrated water in Desulfurization tower slurry is controlled, is to ensure
One important parameter of the stable operation of system.The extensive row such as coal yard sprinkling, the sprinkling of grey field, hydraulic discharged slag was similar in the past
Mode is put, is progressively prevented in terms of national policy, desulfurization wastewater zero-emission has turned into one that domestic coal-burning power plant generally faces
Individual problem.For panoramic zero emission treatment of desulfured waste water on domestic market, its process route is commonly：It is useless
Three links such as water pretreatment-wastewater minimisation processing-curing process, Wastewater Pretreatment mainly provide for wastewater minimisation processing
Qualified water condition, so that it is guaranteed that the stable operation of wastewater minimisation processing method.However, wastewater minimisation processing method is commonly film
Concentration technology, it is the characteristics of various film concentration technologies：Its pre-processing requirements to desulfurization wastewater is high, to the desulfurization wastewater of high salt amount
Adaptability is simultaneously pessimistic, and the FAQs such as fouling, blocking are frequently present of in running, reduces the service life of film, significantly
Improve its operating cost and maintenance cost.Wastewater minimisation processing method is commonly indirect evaporation or directly evaporation, indirect evaporation
Feature：Need that tubular type heat-exchange system is installed in main air and gas system, improve air and gas system running resistance；Or application high standard is steamed
Vapour provides thermal source to vapo(u)rization system, has a strong impact on the energy-saving run of unit.Directly evaporate feature：Using high-temperature flue gas, direct shadow
Boiler operating efficiency is rung, or uses waste heat flue gas, but certain risk be present to follow-up air and gas system safe and stable operation.
The content of the invention
To solve problem above, the present invention provides a kind of Desulphurization for Coal-fired Power Plant wastewater zero discharge system and its processing method.
The Desulphurization for Coal-fired Power Plant wastewater zero discharge system can utilize the fume afterheat of boiler discharge by being concentrated by evaporation separator to de-
The desulfurization wastewater of sulphur tower discharge carries out circulating-heating evaporation and concentration, finally realizes the zero-emission of desulfurization wastewater；Its is simple in construction, nothing
High-energy equipment, running resistance is small, and stability is good, and cost is low, and its processing method is simple, can realize the zero-emission of desulfurization wastewater,
It is easy to industrialized production and application.
In order to achieve the above object, the present invention is solved using following technical scheme.
(1) it is a kind of to be concentrated by evaporation separator, for wastewater treatment, including evaporation channel, heat transfer path and centrifugation
Device, the evaporation channel are in parallel superposition above and below double W types with the heat transfer path, and the evaporation channel positioned at upside is with being located at
The heat transfer path of downside shares a W type heat conductive wall；Liquid separation groove, W are respectively arranged with the top of W types in the evaporation channel
Type bottom is respectively arranged with collecting tank, and the liquid separation groove provides waste water moisture film to be evaporated to W types heat conductive wall；Along flue gas negative side
To being provided with delivery pump between adjacent collecting tank and liquid separation groove；The inlet of the delivery pump by conveyance conduit with it is described
Collecting tank is connected, and the liquid outlet of the delivery pump is connected by conveyance conduit with the liquid separation groove；The waste water of the delivery pump is defeated
Send direction opposite with flue gas flow direction；Collecting tank positioned at the porch of the evaporation channel passes through concentrated water pump and the centrifugation
The charging aperture connection of device, the leakage fluid dram of the whizzer pass through back water pump and the collection positioned at the exit of the evaporation channel
Liquid bath connects, and the solid waste mouth of the whizzer is communicated with drier；Collection positioned at the exit of the evaporation channel
Liquid bath is also communicated with the waste water pump of transport wastewater.
According to the evaporation and concentration separator of the present invention, high-temperature flue gas is passed through into evaporation channel and heat transfer path respectively,
The unsaturated flue gas environment of high temperature under a flow regime is created using the high-temperature flue gas in evaporation channel, waste water is logical from evaporation
The exit in road with high-temperature flue gas opposite course flow into evaporation channel；High-temperature flue gas in evaporation channel is in evaporation channel
Waste water carries out directly heating evaporation and concentration, and takes away the moisture in waste water；High-temperature flue gas in heat transfer path passes through W type heat conductive walls
Indirectly heat evaporation and concentration is carried out to waste water.High-temperature flue gas and waste water in evaporation channel, salt content is higher in waste water, then
Higher heat energy is more needed to realize the evaporation and concentration of waste water；High-temperature flue gas in evaporation channel is with follow-up flowing, its temperature
Degree gradually reduces, and relative humidity gradually increases, and salinity is more and more lower in the waste water of contact, so as to persistently imitate " natural environment
Meteorological principle ", ideally, can be achieved evaporation channel in high-temperature flue gas close to water vapour saturation state.
Waste water can be delivered to the collecting tank in evaporation channel exit using waste water pump, the waste water in collecting tank is in delivery pump
In the presence of be delivered to liquid separation groove at the top of W types, the biography that the waste water in liquid separation groove passes through both sides of the overflow type along liquid separation groove
Hot wall flows into the collecting tank of both sides, while waste water moisture film is formed in the heat conductive wall of both sides；Wherein overflow direction and evaporation channel
The collecting tank that the consistent waste water outflow in interior flow of flue gas direction enters is this grade of collecting tank；Overflow direction and the cigarette in evaporation channel
The collecting tank that flow of air waste water outflow in opposite direction enters is next stage collecting tank.Waste water in this grade of collecting tank is in delivery pump
Liquid separation groove is delivered under effect, realizes the circulating and evaporating concentration of waste water；The effect of waste water in next stage collecting tank in delivery pump
Under be delivered to liquid separation groove, realize waste water circulating and evaporating concentration；Until entrance outflow of the waste water through evaporation channel, it is dense to obtain saturation
Water.Saturation concentrated water is delivered to whizzer by concentrated water pump, carries out separation of solid and liquid, obtains separating liquid and solid waste, will separate
The collecting tank that liquid is delivered to positioned at evaporation channel exit by back water pump carries out circulating-heating evaporation and concentration；Solid waste passes through
Drier is dried, and finally realizes that the evaporation and concentration of waste water with separating, reaches the purpose of wastewater zero discharge.
In addition, evaporation and concentration separator provided by the invention can have following additional technical feature：
As preferable, the W types heat conductive wall is made up of corrugated plating.
According to the evaporation and concentration separator of the present invention, the evaporation of waste water is further exacerbated by using corrugated plating, in liquid separation groove
Waste water when flowing into the collecting tank of its both sides by heat conductive wall of the overflow type along liquid separation groove both sides, the biography being made up of corrugated plating
It can form waste water moisture film on hot wall, the lines on corrugated plating increases the contact area of high-temperature flue gas and waste water in evaporation channel,
Displacement of the waste water in heat conductive wall is extended simultaneously, therefore, the heat conductive wall being made up of corrugated plating can aggravate the evaporation of waste water
Concentration process.In addition, corrugated plating has good sealing property, make evaporation channel and the high-temperature flue gas in heat transfer path completely every
Open.Corrugated plating is polytetrafluoroethylene (PTFE) material, can be resistant to high salt corrosion, such as chloride ion corrosion, and corrugated plating is had well
Heat transfer property, it is easy to the high-temperature flue gas in heat transfer path to carry out heating evaporation concentration to the waste water in evaporation channel.
As preferable, the leakage fluid dram of the whizzer is connected by back water pump with the inlet of the delivery pump.
According to the evaporation and concentration separator of the present invention, the separating liquid is passed sequentially through into delivery pump and is delivered to liquid separation groove,
Separating liquid in liquid separation groove, by the collecting tank of the heat conductive wall inflow both sides of both sides of the overflow type along liquid separation groove, while
Moisture film is formed in the heat conductive wall of both sides；The wherein overflow direction waste water outflow consistent with the flow of flue gas direction in evaporation channel enters
Collecting tank be this grade of collecting tank；The liquid collecting that the overflow direction waste water outflow in opposite direction with the flow of flue gas in evaporation channel enters
Groove is next stage collecting tank.Separating liquid in this grade of collecting tank is delivered to liquid separation groove in the presence of delivery pump, realizes separating liquid
Circulating-heating be concentrated by evaporation.
As preferable, the entrance of the entrance of the evaporation channel and the heat transfer path is provided with baffle door.
According to the evaporation and concentration separator of the present invention, high temperature cigarette in evaporation channel and heat transfer path is adjusted using baffle door
The flow velocity of gas, the high-temperature flue gas in evaporation channel need to control relatively low flow velocity, have using the high-temperature flue gas in evaporation channel
The characteristics of high temperature and its unsaturated water steam, the high-temperature flue gas in evaporation channel is set to fully absorb the waste water after gasification；Heat transfer
High-temperature flue gas in passage can carry out large-scale flue gas flow rate adjustment on the premise of heat exchange is ensured by baffle door.
(2) a kind of Desulphurization for Coal-fired Power Plant wastewater zero discharge system, including：Boiler, desulfurizing tower and the separation of above-mentioned evaporation and concentration
Device；The evaporation and concentration separator is arranged on the boiler tail flue gas port of export by main cigarette wind passage and desulfurization tower flue gas enters
Between mouth end, the discharge of wastewater mouth of the desulfurizing tower is connected with the outlet of the evaporation channel.
, will using the air-introduced machine in boiler or booster fan according to the Desulphurization for Coal-fired Power Plant wastewater zero discharge system of the present invention
The waste heat flue gas of boiler tail flue gas port of export discharge divides two-way, wherein, waste heat flue gas is from evaporation and concentration separator all the way
Evaporation channel entrance flow into evaporation channel, desulfurizing tower discharge desulfurization wastewater from be concentrated by evaporation separator in evaporation lead to
The outlet in road flows into, and waste heat flue gas carries out directly heating evaporation and concentration to desulfurization wastewater, and takes away the moisture in desulfurization wastewater, remaining
Heat smoke is expelled to desulfurizing tower gas approach end from the outlet of evaporation channel, removes the water droplet in waste heat flue gas through desulfurizing tower and contains
Sulfur material, finally discharged from chimney；Another way waste heat flue gas flows into from the entrance for the heat transfer path being concentrated by evaporation in separator
Heat transfer path, the waste heat flue gas utilization heat conductive wall in heat transfer path carry out indirectly heat evaporation to the desulfurization wastewater in evaporation channel
Concentration, is then expelled to desulfurizing tower gas approach end from the outlet of heat transfer path, and the sulfur-bearing in waste heat flue gas is removed through desulfurizing tower
Material, finally discharged from chimney.
In the Desulphurization for Coal-fired Power Plant wastewater zero discharge system of the present invention, the company of separator and main cigarette wind passage is concentrated by evaporation
The mode of connecing is：By the entrance of the entrance of evaporation channel and the heat transfer path respectively with the air-introduced machine in main cigarette wind passage or supercharging
The outlet connection of blower fan, the outlet of the evaporation channel and the outlet of the heat transfer path respectively with close desulfurizing tower gas approach
The main cigarette wind passage connection at end.
In the Desulphurization for Coal-fired Power Plant wastewater zero discharge system of the present invention, the company of separator and main cigarette wind passage is concentrated by evaporation
Connecing can also be in the following ways：By the entrance of the entrance of evaporation channel and the heat transfer path respectively with the main cigarette wind passage
Middle air-introduced machine or booster fan outlet connection, the evaporation channel outlet and the heat transfer path outlet respectively with main cigarette
The entrance of air-introduced machine or booster fan connects in wind passage.Using this connected mode, exported using air-introduced machine or booster fan
Malleation overcomes the running resistance for being concentrated by evaporation separator；Simultaneously as waste heat flue gas and desulfurization wastewater in evaporation channel
Surface contact is carried out, obtains carrying the wet flue gas of water vapour；Flue gas in heat transfer path is not directly contacted with desulfurization wastewater, cigarette
Gas composition does not change, and therefore, when the flue gas of evaporation channel and heat transfer path outlet discharge returns to main cigarette wind passage, returns to master
The flue gas of cigarette wind passage does not increase the salt in desulfurization wastewater, bad to air-introduced machine or the corrosion-free, fouling of booster fan equipment etc.
Influence.
Desulphurization for Coal-fired Power Plant wastewater zero discharge system provided by the invention, based on the evaporation and concentration separation set in the system
Device, the desulfurization wastewater discharged using the waste heat flue gas of boiler emission to desulfurizing tower are carried out circulating-heating evaporation and concentration, realized
The zero-emission of desulfurization wastewater.The system architecture is simple, without high-quality steam, without pipe type heat transfer system, avoids desulfurization and gives up
The repetition heat exchange of water zero discharge process, and thermal loss caused by it；Delivery pump in system only plays conveying, no
Operation with pressure, no highly energy-consuming equipment, cost are low；The system simplifies the desulfurization such as desulfurization wastewater pretreatment, wastewater minimisation processing and given up
Water process link, trouble point is less, and repair and maintenance is convenient.
In addition, Desulphurization for Coal-fired Power Plant wastewater zero discharge system provided by the invention can have following additional technical feature：
As preferable, the evaporation and concentration separator includes multiple evaporation channels, and the multiple evaporation channel is in W types
It is sequentially overlapped in the top of the heat transfer path.According to the Desulphurization for Coal-fired Power Plant wastewater zero discharge system of the present invention, multiple evaporations
Passage is sequentially overlapped in W types and is divided into multiply in the top of heat transfer path, the substantial amounts of desulfurization wastewater of desulfurizing tower discharge and leads to respectively
Enter in the evaporation channel being concentrated by evaporation in separator, can more utilize the waste heat flue gas of the boiler tail flue gas port of export faster
Circulating-heating evaporation and concentration is carried out to the desulfurization wastewater of desulfurizing tower discharge, is advantageous to its industrialized production and application.
(3) a kind of Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method, based on above-mentioned Desulphurization for Coal-fired Power Plant wastewater zero discharge
System, including following operating procedure：
Step 1, the waste heat flue gas that the boiler tail flue gas port of export is discharged is divided to two-way, it is flat up and down by double W types respectively
The evaporation channel and heat transfer path of row superposition flow into desulfurizing tower；
Step 2, the desulfurization wastewater that desulfurizing tower is discharged is delivered to the liquid collecting positioned at evaporation channel exit by waste water pump
Groove；
Step 3, the desulfurization wastewater in the collecting tank is pumped into adjacent liquid separation groove by conveying, in liquid separation groove
Desulfurization wastewater overflow forms desulfurization wastewater moisture film in the W types heat conductive wall；Waste heat flue gas in the heat transfer path passes through described
W types heat conductive wall carries out indirectly heat evaporation and concentration to desulfurization wastewater, and the waste heat flue gas in the evaporation channel directly heats evaporation
Desulfurization wastewater is concentrated, and takes away the moisture in desulfurization wastewater；
Step 4, the collecting tank positioned at evaporation channel porch collects the desulfurization wastewater by heating evaporation concentration, by dense
Water pump is delivered to whizzer, and whizzer is collected and carries out separation of solid and liquid, and separating liquid is delivered into position by back water pump
Collecting tank in evaporation channel exit carries out circulating-heating evaporation and concentration；And whizzer exports solid waste.
As preferable, in step 1, the waste heat flue gas flow rate in the evaporation channel is 2-3m/s.
As preferable, multigroup collecting tank and liquid separation groove, phase are disposed with along flue gas opposite direction in the evaporation channel
It is provided with delivery pump between adjacent collecting tank and liquid separation groove, the desulfurization wastewater in the collecting tank is by the delivery pump along flue gas
Opposite direction carries out Multi-stage heating evaporation and concentration.
As preferable, the separating liquid is passed sequentially through into back water pump and delivery pump is delivered to the liquid separation groove, is followed
Ring heating evaporation concentrates.
As preferable, in step 4, the solid waste is passed through in drier.
The Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method of the present invention, can make full use of boiler afterheat flue gas, a side
Face is heated up using waste heat flue gas to desulfurization wastewater aggravates the gasification of desulfurization wastewater, on the other hand utilizes waste heat smoke absorption gas
Desulfurization wastewater after change, desulfurization wastewater heating evaporation is concentrated, waste heat flue gas is handled eventually through desulfurizing tower, is discharged from chimney.
The desulfurization wastewater that desulfurizing tower is discharged is delivered to by the collecting tank positioned at evaporation channel exit by waste water pump first, in collecting tank
Desulfurization wastewater liquid separation groove is delivered to by delivery pump, the desulfurization wastewater in liquid separation groove is flowed in its both sides repeatedly by overflow type
Heat conductive wall, form desulfurization wastewater moisture film, finally flow into the collecting tank of its both sides, the desulfurization wastewater in collecting tank is repeatedly defeated again
Pump is sent to be delivered to liquid separation groove, so as to realize that circulating-heating of the desulfurization wastewater in the case where conveying pumping action is concentrated by evaporation, until waste water passes through
The entrance outflow of evaporation channel, obtains saturation concentrated water.Saturation concentrated water is delivered to whizzer by concentrated water pump, carries out solid-liquid point
From, obtain separating liquid and solid waste, by separating liquid by back water pump be delivered to positioned at evaporation channel exit collecting tank carry out
Circulating-heating is concentrated by evaporation；Solid waste is dried by drier, finally realizes that the evaporation and concentration of waste water with separating, reaches waste water
The purpose of zero-emission.The heat balance of the Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method of the present invention is related to heat transfer, evaporation etc.
Theory, the exhaust gas volumn for meeting that desulfurization wastewater Zero discharging system is run can be adjusted by technique actual motion.The processing method is transported
Row cost is low, no high-energy equipment, is easy to industrial applications.
Brief description of the drawings
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the evaporation and concentration separator of the present invention；
Fig. 2 is a kind of structural representation of embodiment of Desulphurization for Coal-fired Power Plant wastewater zero discharge system；
Fig. 3 is the structural representation of another embodiment of Desulphurization for Coal-fired Power Plant wastewater zero discharge system；
Fig. 4 is the structural representation of another embodiment of Fig. 3 Desulphurization for Coal-fired Power Plant wastewater zero discharge systems.
In above figure：1 boiler；101 main cigarette wind passages；2 are concentrated by evaporation separator；3 evaporation channels；301 evaporations are logical
The entrance in road；The outlet of 302 evaporation channels；4 heat transfer paths；The entrance of 401 heat transfer paths；The outlet of 402 heat transfer paths；5 points
Liquid bath；6 collecting tanks；7 waste water pumps；701 delivery pumps；702 concentrated water pumps；703 back water pumps；8 whizzers；9 driers；10 desulfurization
Tower；11 chimneys.
Embodiment
With reference to figure 1, one kind is concentrated by evaporation separator, for wastewater treatment, including evaporation channel 3, heat transfer path 4 and from
Centrifugal separator 8, evaporation channel 3 and heat transfer path 4 are in parallel superposition above and below double W types, positioned at the evaporation channel 3 of upside and under being located at
The heat transfer path 4 of side shares a W type heat conductive wall；Liquid separation groove 5, W types bottom are respectively arranged with the top of W types in evaporation channel 3
Collecting tank 6 is respectively arranged with, liquid separation groove 5 provides waste water moisture film to be evaporated to W types heat conductive wall；It is adjacent along flue gas opposite direction
Delivery pump 701 is provided between collecting tank 6 and liquid separation groove 5；The inlet of delivery pump 701 is connected by conveyance conduit and collecting tank 6
Connect, the liquid outlet of delivery pump 701 is connected by conveyance conduit with liquid separation groove 5；The waste water conveying direction of delivery pump 701 and flue gas stream
To opposite；Collecting tank 6 positioned at the porch of evaporation channel 3 is connected by concentrated water pump 702 with the charging aperture of whizzer 8,
The leakage fluid dram of whizzer 8 is connected by back water pump 703 with the collecting tank 6 in the exit positioned at evaporation channel 3, is centrifuged
The solid waste mouth of device 8 is communicated with drier 9；Collecting tank 6 positioned at the exit of evaporation channel 3 is also communicated with transport wastewater
Waste water pump 7.
In the embodiment above, high-temperature flue gas is passed through into evaporation channel 3 and heat transfer path 4 respectively, utilizes evaporation channel 3
Interior high-temperature flue gas creates the unsaturated flue gas environment of high temperature under a flow regime, and waste water is from the exit of evaporation channel 3
To flow into evaporation channel 3 with high-temperature flue gas opposite course；High-temperature flue gas in evaporation channel 3 enters to the waste water in evaporation channel 3
Row directly heats evaporation and concentration, and takes away the moisture in waste water；High-temperature flue gas in heat transfer path 4 is by W types heat conductive wall to useless
Water carries out indirectly heat evaporation and concentration.High-temperature flue gas and waste water in evaporation channel 3, salt content is higher in waste water, then gets over
Higher heat energy is needed to realize the evaporation and concentration of waste water；High-temperature flue gas in evaporation channel 3 is with follow-up flowing, its temperature
Gradually reduce, relative humidity gradually increases, and the waste water of contact is also more and more lighter, and so as to persistently imitate, " meteorology of natural environment is former
Reason ", ideally, the high-temperature flue gas in evaporation channel 3 can be achieved close to the saturation state of water vapour.
Waste water can be delivered to the collecting tank 6 in the exit of evaporation channel 3 using waste water pump 7, the waste water in collecting tank 6 is defeated
Send the liquid separation groove 5 being delivered in the presence of pump 701 at the top of W types, the waste water in liquid separation groove 5 is by overflow type along liquid separation groove 5
Both sides heat conductive wall flow into both sides collecting tank 6, while in the heat conductive wall of both sides formed waste water moisture film；Wherein overflow direction
The collecting tank 6 that the waste water outflow consistent with the flow of flue gas direction in evaporation channel 3 enters is this grade of collecting tank 6；Overflow direction with
The collecting tank 6 that flow of flue gas in evaporation channel 3 waste water outflow in opposite direction enters is next stage collecting tank 6.This grade of collecting tank 6
In waste water liquid separation groove 5 is delivered in the presence of delivery pump 701, realize waste water circulating and evaporating concentration；Next stage collecting tank 6
In waste water liquid separation groove 5 is delivered in the presence of delivery pump 701, realize waste water circulating and evaporating concentration；Until waste water is through steaming
The entrance outflow of passage 3 is sent out, obtains saturation concentrated water.Saturation concentrated water is delivered to whizzer 8 by concentrated water pump 702, carries out solid-liquid
Separation, obtains separating liquid and solid waste, separating liquid is delivered into the liquid collecting positioned at the exit of evaporation channel 3 by back water pump 703
Groove 6 carries out circulating-heating evaporation and concentration；Solid waste is dried by drier 9, finally realizes the evaporation and concentration of waste water with separating,
Reach the purpose of wastewater zero discharge.
In addition, evaporation and concentration separator provided by the invention can have following additional embodiment：
According to one embodiment of present invention, W types heat conductive wall is made up of corrugated plating.
In the embodiment above, it is further exacerbated by the evaporation of waste water using corrugated plating, the waste water in liquid separation groove 5 passes through overflow
When heat conductive wall of the form along the both sides of liquid separation groove 5 flows into the collecting tank 6 of its both sides, it can be formed in the heat conductive wall that is made up of corrugated plating
Waste water moisture film, the lines on corrugated plating increases the contact area of high-temperature flue gas and waste water in evaporation channel 3, while extends useless
Displacement of the water in heat conductive wall, therefore, the heat conductive wall being made up of corrugated plating can aggravate the evaporating concentration process of waste water.Separately
Outside, corrugated plating has good sealing property, makes evaporation channel 3 and the high-temperature flue gas in heat transfer path 4 completely separated.Corrugated plating
For polytetrafluoroethylene (PTFE) material, high salt corrosion, such as chloride ion corrosion are can be resistant to, and makes corrugated plating that there is good heat transfer property,
It is easy to the high-temperature flue gas in heat transfer path 4 to carry out heating evaporation concentration to the waste water in evaporation channel 3.
With reference to figure 1, according to one embodiment of present invention, the leakage fluid dram of whizzer 8 passes through back water pump 703 and conveying
The inlet connection of pump 701.
In the embodiment above, separating liquid is passed sequentially through into back water pump 703 and delivery pump 701 is delivered to liquid separation groove 5, liquid separation
Separating liquid in groove 5, the collecting tank 6 of both sides is flowed into by the heat conductive wall of both sides of the overflow type along liquid separation groove 5, while two
Moisture film is formed in the heat conductive wall of side；The wherein overflow direction waste water outflow consistent with the flow of flue gas direction in evaporation channel 3 enters
Collecting tank 6 be this grade of collecting tank 6；The overflow direction waste water outflow in opposite direction with the flow of flue gas in evaporation channel 3 enters
Collecting tank 6 is next stage collecting tank 6.Separating liquid in this grade of collecting tank 6 is delivered to liquid separation groove 5 in the presence of delivery pump 701,
Realize that the circulating-heating of separating liquid is concentrated by evaporation.
According to one embodiment of present invention, the entrance of the entrance of evaporation channel 3 and heat transfer path 4 is provided with baffle plate
Door.
In the embodiment above, the flow velocity of high-temperature flue gas in evaporation channel 3 and heat transfer path 4 is adjusted using baffle door, is steamed
High-temperature flue gas in hair passage 3 need to control relatively low flow velocity, the high temperature that has using the high-temperature flue gas in evaporation channel 3 and its non-
The characteristics of saturated steam, the high-temperature flue gas in evaporation channel 3 is set to fully absorb the waste water after gasification；In heat transfer path 4
High-temperature flue gas can carry out large-scale flue gas flow rate adjustment on the premise of heat exchange is ensured by baffle door.
With reference to figure 1 and Fig. 2, Desulphurization for Coal-fired Power Plant wastewater zero discharge system of the invention, including：Boiler 1, the and of desulfurizing tower 10
Above-mentioned evaporation and concentration separator 2；Evaporation and concentration separator 2 is arranged on the tail flue gas of boiler 1 by main cigarette wind passage 101 and gone out
Between mouth end and the gas approach end of desulfurizing tower 10, the discharge of wastewater mouth of the desulfurizing tower 10 and the outlet of the evaporation channel 3 connect
Connect.
In above example, the tail flue gas port of export of boiler 1 is discharged using the air-introduced machine in boiler 1 or booster fan
Waste heat flue gas divides two-way, wherein, the entrance 301 of waste heat flue gas from the evaporation channel being concentrated by evaporation in separator 2 flows into all the way
Evaporation channel 3, the desulfurization wastewater that desulfurizing tower 10 is discharged flow into from the outlet 302 for the evaporation channel being concentrated by evaporation in separator 2,
Waste heat flue gas carries out directly heating evaporation and concentration to desulfurization wastewater, and takes away the moisture in desulfurization wastewater, and waste heat flue gas is from evaporation
The outlet 302 of passage is expelled to the gas approach end of desulfurizing tower 10, and the water droplet and sulfur-bearing thing in waste heat flue gas are removed through desulfurizing tower 10
Matter, finally discharged from chimney 11；The entrance 401 of another way waste heat flue gas from the heat transfer path being concentrated by evaporation in separator 2 flows
Enter heat transfer path 4, the waste heat flue gas utilization heat conductive wall in heat transfer path 4 desulfurization wastewater in evaporation channel 3 is carried out indirectly plus
Thermal evaporation is concentrated, and is then expelled to the gas approach end of desulfurizing tower 10 from the outlet 402 of heat transfer path, and waste heat is removed through desulfurizing tower 10
Sulphur-containing substance in flue gas, finally discharged from chimney 11.
With reference to figure 2, in Desulphurization for Coal-fired Power Plant wastewater zero discharge system of the invention, separator 2 and main cigarette are concentrated by evaporation
The connected mode of wind passage 101 is：By the entrance of the entrance of evaporation channel 3 and heat transfer path 4 respectively with main cigarette wind passage 101
Air-introduced machine or booster fan outlet connection, the outlet of evaporation channel 3 and the outlet of heat transfer path 4 respectively with close to desulfurizing tower
The main cigarette wind passage 101 at 10 gas approach ends connects.
With reference to figure 3, in Desulphurization for Coal-fired Power Plant wastewater zero discharge system of the invention, separator 2 and main cigarette are concentrated by evaporation
The connection of wind passage 101 can also be in the following ways：By the entrance of the entrance of evaporation channel 3 and heat transfer path 4 respectively with one
The outlet connection of air-introduced machine or booster fan in the main cigarette wind passage 101 of bar, the outlet of evaporation channel 3 and going out for heat transfer path 4
Mouth is connected with the air-introduced machine in the main cigarette wind passage 101 of this or the entrance of booster fan respectively., also can be logical by evaporation with reference to figure 4
The entrance in road 3 is connected with the outlet of air-introduced machine or booster fan in the wherein main cigarette wind passage 101 drawn from boiler,
The outlet of evaporation channel 3 is connected with the air-introduced machine in another main cigarette wind passage 101 or the entrance of booster fan, heat transfer is logical
The entrance in road 4 is connected with the outlet of air-introduced machine or booster fan in the wherein main cigarette wind passage 101 drawn from boiler,
The outlet of heat transfer path 4 is connected with the air-introduced machine in another main cigarette wind passage 101 or the entrance of booster fan.
Using above-mentioned connected mode, the malleation exported using air-introduced machine or booster fan overcomes evaporation and concentration separator
2 running resistance；Simultaneously as the waste heat flue gas in evaporation channel 3 carries out surface with desulfurization wastewater and contacted, obtain carrying water
The wet flue gas of steam；Flue gas in heat transfer path 4 is not directly contacted with desulfurization wastewater, and exhaust gas components do not change, and therefore, works as steaming
When hair passage 3 and the flue gas of the outlet of heat transfer path 4 discharge return to main cigarette wind passage 101, the flue gas of main cigarette wind passage 101 is returned to not
Increase the salt in desulfurization wastewater, to the harmful effect such as air-introduced machine or the corrosion-free, fouling of booster fan equipment.
Desulphurization for Coal-fired Power Plant wastewater zero discharge system provided by the invention, based on the evaporation and concentration separation set in the system
Device 2, the desulfurization wastewater that the waste heat flue gas discharged using boiler 1 is discharged to desulfurizing tower 10 carries out circulating-heating evaporation and concentration, real
The zero-emission of desulfurization wastewater is showed.The system architecture is simple, without high-quality steam, without pipe type heat transfer system, avoids de-
The repetition heat exchange of sulphur wastewater zero discharge process, and thermal loss caused by it；Delivery pump in system only plays conveying and made
It is low with, operation not with pressure, no highly energy-consuming equipment, cost；It is de- that the system simplifies desulfurization wastewater pretreatment, wastewater minimisation processing etc.
Sulphur wastewater treatment link, trouble point is less, and repair and maintenance is convenient.
In addition, Desulphurization for Coal-fired Power Plant wastewater zero discharge system provided by the invention can have following additional embodiment：
According to another embodiment of the invention, the evaporation and concentration separator 2 includes multiple evaporation channels 3, described
Multiple evaporation channels 3 are sequentially overlapped in the top of the heat transfer path in W types.
In above example, multiple evaporation channels 3 are sequentially overlapped in W types and discharged in the top of heat transfer path 4, desulfurizing tower 10
Substantial amounts of desulfurization wastewater be divided into multiply each lead into be concentrated by evaporation separator 2 in evaporation channel 3 in, can more faster
The desulfurization wastewater discharged to desulfurizing tower 10 of the waste heat flue gas using the tail flue gas port of export of boiler 1 to carry out circulating-heating evaporation dense
Contracting, is advantageous to its industrialized production and application.
Present invention also offers a kind of Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method, based on above-mentioned Desulphurization for Coal-fired Power Plant
Wastewater zero discharge system, including following operating procedure：
Step 1, the waste heat flue gas that the tail flue gas port of export of boiler 1 is discharged is divided to two-way, it is flat up and down by double W types respectively
The evaporation channel 3 and heat transfer path 4 of row superposition flow into desulfurizing tower 10；
Step 2, the desulfurization wastewater that desulfurizing tower 10 is discharged is delivered to positioned at the exit of evaporation channel 3 by waste water pump 7
Collecting tank 6；
Step 3, the desulfurization wastewater in collecting tank 6 is transported to by delivery pump 701 in adjacent liquid separation groove 5, in liquid separation groove 5
Desulfurization wastewater overflow in W type heat conductive walls, form desulfurization wastewater moisture film；Waste heat flue gas in heat transfer path 4 passes through W type heat conductive walls
To desulfurization wastewater progress indirectly heat evaporation and concentration, the waste heat flue gas in evaporation channel 3 directly heats evaporation and concentration desulfurization wastewater,
And take away the moisture in desulfurization wastewater；
Step 4, the collecting tank 6 positioned at the porch of evaporation channel 3 collects the desulfurization wastewater by heating evaporation concentration, passes through
Concentrated water pump 702 is delivered to whizzer 8, and whizzer 8 is collected and carries out separation of solid and liquid, and separating liquid is passed through into back water pump
703 collecting tanks 6 for being delivered to positioned at the exit of evaporation channel 3 carry out circulating-heating evaporation and concentration；And whizzer 8 exports
Solid waste, solid waste are dried by drier 9.
The Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method of the present invention, can make full use of the waste heat flue gas of boiler 1, a side
Face is heated up using waste heat flue gas to desulfurization wastewater aggravates the gasification of desulfurization wastewater, on the other hand utilizes waste heat smoke absorption gas
Desulfurization wastewater after change, desulfurization wastewater heating evaporation is concentrated, waste heat flue gas is handled eventually through desulfurizing tower 10, from the row of chimney 11
Go out.The desulfurization wastewater that desulfurizing tower 10 is discharged is delivered to by the collecting tank 6 positioned at the exit of evaporation channel 3 by waste water pump 7 first,
Desulfurization wastewater in collecting tank 6 is delivered to liquid separation groove 5 by delivery pump 701, and the desulfurization wastewater in liquid separation groove 5 passes through overflow type
Flow the heat conductive wall in its both sides repeatedly, form desulfurization wastewater moisture film, finally flow into the collecting tank 6 of its both sides, it is de- in collecting tank 6
Sulphur waste water is delivered to liquid separation groove 5 by delivery pump 701 repeatedly again, so as to realize circulation of the desulfurization wastewater under the effect of delivery pump 701
Heating evaporation concentrates, until entrance 301 of the waste water through evaporation channel flows out, obtains saturation concentrated water.Saturation concentrated water passes through concentrated water pump 702
Whizzer 8 is delivered to, separation of solid and liquid is carried out, obtains separating liquid and solid waste, separating liquid is delivered to by back water pump 703
Collecting tank 6 positioned at the exit of evaporation channel 3 carries out circulating-heating evaporation and concentration, separating liquid can also be passed through into back water pump 703
It is delivered to delivery pump 701 in liquid separation groove 5, carries out circulating-heating evaporation and concentration；Solid waste is dried by drier 9, finally
Realize that the evaporation and concentration of waste water with separating, reaches the purpose of wastewater zero discharge.The Desulphurization for Coal-fired Power Plant wastewater zero discharge of the present invention
The heat balance of processing method is related to heat transfer, evaporation scheduling theory, can be adjusted by technique actual motion and meet desulfurization wastewater zero
The exhaust gas volumn of exhaust system operation.The processing method operating cost is low, no high-energy equipment, is easy to industrial applications.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these changes and modification of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
1. one kind is concentrated by evaporation separator, for wastewater treatment, it is characterised in that including evaporation channel (3), heat transfer path
(4) and whizzer (8), the evaporation channel (3) is in parallel superposition above and below double W types with the heat transfer path (4), positioned at upper
The evaporation channel (3) of side shares a W type heat conductive wall with the heat transfer path (4) positioned at downside；
Liquid separation groove (5) is respectively arranged with the top of W types in the evaporation channel (3), W types bottom is respectively arranged with collecting tank (6),
The liquid separation groove (5) provides waste water moisture film to be evaporated to W types heat conductive wall；
Along flue gas opposite direction, delivery pump (701) is provided between adjacent collecting tank (6) and liquid separation groove (5)；The delivery pump
(701) inlet is connected by conveyance conduit with the collecting tank (6), and the liquid outlet of the delivery pump (701) passes through conveying
Pipeline is connected with the liquid separation groove (5)；The waste water conveying direction of the delivery pump (701) is opposite with flue gas flow direction；
Collecting tank (6) positioned at the evaporation channel (3) porch passes through concentrated water pump (702) and the whizzer (8)
Charging aperture connects, and the leakage fluid dram of the whizzer (8) passes through back water pump (703) and going out positioned at the evaporation channel (3)
Collecting tank (6) connection at mouthful, the solid waste mouth of the whizzer (8) are communicated with drier (9)；
Collecting tank (6) positioned at the exit of the evaporation channel (3) is also communicated with the waste water pump (7) of transport wastewater.
2. evaporation and concentration separator according to claim 1, it is characterised in that the W types heat conductive wall is by corrugated plating structure
Into.
3. evaporation and concentration separator according to claim 1, it is characterised in that the discharge opeing of the whizzer (8)
Mouth is connected by back water pump (703) with the inlet of the delivery pump (701).
A kind of 4. Desulphurization for Coal-fired Power Plant wastewater zero discharge system, it is characterised in that including：Boiler (1), desulfurizing tower (10) and right
It is required that the evaporation and concentration separator (2) described in 1；The evaporation and concentration separator (2) is set by main cigarette wind passage (101)
Between boiler (1) the tail flue gas port of export and desulfurizing tower (10) gas approach end, the discharge of wastewater mouth of the desulfurizing tower (10)
Outlet with the evaporation channel (3) is connected.
5. Desulphurization for Coal-fired Power Plant wastewater zero discharge system according to claim 4, it is characterised in that described be concentrated by evaporation is divided
Multiple evaporation channels (3) are included from device (2), the multiple evaporation channel (3) is sequentially overlapped in the heat transfer path in W types
Top.
A kind of 6. Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method, based on the Desulphurization for Coal-fired Power Plant waste water described in claim 4
Zero discharging system, it is characterised in that including following operating procedure：
Step 1, the waste heat flue gas that boiler (1) tail flue gas port of export is discharged is divided to two-way, respectively by parallel above and below double W types
The evaporation channel (3) and heat transfer path (4) of superposition flow into desulfurizing tower (10)；
Step 2, the desulfurization wastewater that desulfurizing tower (10) is discharged is delivered to positioned at evaporation channel (3) exit by waste water pump (7)
Collecting tank (6)；
Step 3, the desulfurization wastewater in the collecting tank (6) is transported to by delivery pump (701) in adjacent liquid separation groove (5), point
Desulfurization wastewater overflow in liquid bath (5) forms desulfurization wastewater moisture film in the W types heat conductive wall；It is remaining in the heat transfer path (4)
Heat smoke carries out indirectly heat evaporation and concentration by the W types heat conductive wall to desulfurization wastewater, the waste heat in the evaporation channel (3)
Flue gas directly heats evaporation and concentration desulfurization wastewater, and takes away the moisture in desulfurization wastewater；
Step 4, the collecting tank (6) positioned at evaporation channel (3) porch collects the desulfurization wastewater by heating evaporation concentration, passes through
Concentrated water pump (702) is delivered to whizzer (8), and whizzer (8) is collected and carries out separation of solid and liquid, by separating liquid by returning
The collecting tank (6) that water pump (703) is delivered to positioned at evaporation channel (3) exit carries out circulating-heating evaporation and concentration；And centrifuge
Separator (8) exports solid waste.
7. Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method according to claim 6, it is characterised in that the evaporation is logical
In road (3) multigroup collecting tank (6) and liquid separation groove (5), adjacent collecting tank (6) and liquid separation groove are disposed with along flue gas opposite direction
(5) it is provided with delivery pump (701) between, the desulfurization wastewater in the collecting tank (6) is anti-along flue gas by the delivery pump (701)
Direction carries out Multi-stage heating evaporation and concentration.
8. Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method according to claim 6, it is characterised in that by the separation
Liquid passes sequentially through back water pump (703) and delivery pump (701) is delivered to the liquid separation groove (5), carries out circulating-heating evaporation and concentration.
9. Desulphurization for Coal-fired Power Plant wastewater zero emission treatment method according to claim 6, it is characterised in that in step 4, institute
Solid waste is stated to be passed through in drier (9).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112520805A (en) * | 2020-11-19 | 2021-03-19 | 常州宝淇丽节能环保科技有限公司 | Desulfurization waste water flue gas waste heat flat membrane concentration decrement system |
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| CN205461054U (en) * | 2016-04-10 | 2016-08-17 | 韩慧聪 | Evaporation concentration device |
| CN105964001A (en) * | 2016-06-28 | 2016-09-28 | 北京康孚科技股份有限公司 | Solar-driven saline solution regeneration device |
| CN107128993A (en) * | 2017-05-04 | 2017-09-05 | 国家海洋局天津海水淡化与综合利用研究所 | Power-plant flue gas waste heat direct-evaporation-type desalination system with flue gas reheat function |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU113667U1 (en) * | 2011-08-17 | 2012-02-27 | Алексей Владимирович Бюлер | DROP FILTER |
| CN205461054U (en) * | 2016-04-10 | 2016-08-17 | 韩慧聪 | Evaporation concentration device |
| CN105964001A (en) * | 2016-06-28 | 2016-09-28 | 北京康孚科技股份有限公司 | Solar-driven saline solution regeneration device |
| CN107128993A (en) * | 2017-05-04 | 2017-09-05 | 国家海洋局天津海水淡化与综合利用研究所 | Power-plant flue gas waste heat direct-evaporation-type desalination system with flue gas reheat function |
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| CN112520805A (en) * | 2020-11-19 | 2021-03-19 | 常州宝淇丽节能环保科技有限公司 | Desulfurization waste water flue gas waste heat flat membrane concentration decrement system |
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