CN104276617B - A kind of seawater desalination system utilizing fume afterheat - Google Patents
A kind of seawater desalination system utilizing fume afterheat Download PDFInfo
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- CN104276617B CN104276617B CN201310276412.3A CN201310276412A CN104276617B CN 104276617 B CN104276617 B CN 104276617B CN 201310276412 A CN201310276412 A CN 201310276412A CN 104276617 B CN104276617 B CN 104276617B
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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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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Abstract
A kind of seawater desalination system utilizing fume afterheat of the present invention, it comprises the seawater filtering device, conditioning tower, dehumidifying tower and the fresh water treatment device that are sequentially connected; This conditioning tower has flue gas input aperture, passes into flue gas by this flue gas input aperture; This conditioning tower has concentrated seawater relief outlet, and concentrated seawater is discharged from concentrated seawater relief outlet; This conditioning tower has wet flue gas relief outlet, and wet flue gas is discharged from wet flue gas relief outlet and is transported to dehumidifying tower; This dehumidifying tower has fume emission mouth, and humidification flue gas is discharged by fume emission mouth; This dehumidifying tower has water coolant input aperture, and water coolant enters dehumidifying tower from water coolant input aperture; This dehumidifying tower has wet flue gas input aperture, and the flue gas of discharging from wet flue gas relief outlet enters dehumidifying tower by wet flue gas input aperture; This dehumidifying tower has fresh water delivery port, and fresh water is flowed out by fresh water delivery port and arrives fresh water treatment device.The invention provides one utilizes fume afterheat to carry out sea water desaltination, realizes the system of pollutant removing in flue gas simultaneously.
Description
Technical field
The invention belongs to flue gas waste heat recovery and field of seawater desalination, particularly relate to a kind of system utilizing fume afterheat to carry out sea water desaltination.
Background technology
China is the country of Energy resources critical shortage.Oil, Sweet natural gas per capita residual recoverable reserves only have 7.7% and 7.1% of world average level, and reserves also only have 58.6% of world average level than more rich coal.Reform and open up to the outside world between more than 30 year, the energy-saving and emission-reduction work of China achieves huge effect.Particularly entering 21 century, energy-saving and emission-reduction work launches on a large scale, and new " economizing energy law " makes to economize on resources and become China's fundamental state policy, and energy-saving and emission-reduction work has become national affairs, the major issue that the whole society participates in.For the energy conservation of China's field of thermal power, the average net coal consumption rate of national thermal power generation unit is reduced to the 326g standard coal/kWh of 2012 from the 412g standard coal/kWh of nineteen ninety-five, close to advanced international standard.
Although the energy-saving and emission-reduction work of China achieves huge effect, also there are larger energy-saving and emission-reduction potentiality, wherein smoke discharging residual heat utilizes is one of focus of current energy-saving field.According to statistics, flue gas directly discharge that thermosteresis accounts for thermosteresis in China's energy utilization more than 50%.Industrial still ubiquity residual heat of exhaust flue gas temperature is high at present, and the problem such as flue gas internal contamination environmental gas too high levels.Mist heat recovering, reduction smoke-discharging pollution are one of emphasis of the current energy-saving and emission-reduction work of China.
Meanwhile, China is also the country of a lack of water.The shortage of water resources has become the great realistic problem of restriction China socio-economic development.Desalination technology is the effective strategy approach solving shortage of fresh water problem.Current method for desalting seawater mainly contains distillation method and embrane method.Distillation method is current widely used desalination technology, and the main water vapour that uses carries out indirect heat exchange as thermal source, need consume a large amount of steam.The desalination technology of exploitation less energy-consumption is also one of current study hotspot both domestic and external.
A kind of technology utilizing fume afterheat to realize sea water desaltination is developed, undoubtedly to promoting that the problem of the water resources shortage that China's energy-saving and emission-reduction work is carried out and solved China has huge realistic meaning if flue gas waste heat recovery and desalination technology can be combined.Field of sea water desalting technology is carried out utilizing fume afterheat, He Hongzhou and Chen Zhiqiang develop one " new and effective seawater desalination evaporators ", but its ultimate principle is still employing distillation method, still adopt the mode of seawater-flue gas indirect heat exchange, heat transfer coefficient is generally lower than 80W/m
2.In addition, also there is easy fouling in indirect heat exchange mode, needs regular maintenance, and the problem that after long-time running, heat transfer effect is deteriorated.
In order to abundant Mist heat recovering, improve sea water desaltination efficiency, wash SOx, the NOx in flue gas and smoke contamination thing simultaneously, need a kind of flue gas-seawater direct contact heat transfer mode to realize the system of sea water desaltination.
Summary of the invention
Technical problem solved by the invention is to provide one to utilize fume afterheat to carry out sea water desaltination, realizes the system of pollutant removing in flue gas simultaneously.
Technical scheme of the present invention is: a kind of seawater desalination system utilizing fume afterheat, and it comprises the seawater filtering device, conditioning tower, dehumidifying tower and the fresh water treatment device that are sequentially connected; This conditioning tower has flue gas input aperture, passes into flue gas by this flue gas input aperture; This conditioning tower has concentrated seawater relief outlet, and concentrated seawater is discharged from concentrated seawater relief outlet; This conditioning tower has wet flue gas relief outlet, and wet flue gas is discharged from wet flue gas relief outlet and is transported to dehumidifying tower; This dehumidifying tower has fume emission mouth, and humidification flue gas is discharged by fume emission mouth; This dehumidifying tower has water coolant input aperture, and water coolant enters dehumidifying tower from water coolant input aperture; This dehumidifying tower has wet flue gas input aperture, and the flue gas of discharging from wet flue gas relief outlet enters dehumidifying tower by wet flue gas input aperture; This dehumidifying tower has fresh water delivery port, and fresh water is flowed out by fresh water delivery port and arrives fresh water treatment device.
This fresh water treatment device comprises fresh water storage tank and fresh water cooled device, and fresh water delivery port is connected with fresh water storage tank, and fresh water storage tank connects fresh water cooled device; This fresh water storage tank has water outlet; Be connected with water coolant input aperture in fresh water cooled device.
Seawater filtering device is in charge of by first and is connected with fresh water cooled device, and this fresh water cooled device is provided with circulating water intake and circulating water outlet, and first is in charge of and is connected with circulating water intake.
This fresh water cooled device is provided with circulating water intake and circulating water outlet, and this circulating water intake is connected with heat pump set respectively with circulating water outlet.
Condenser is connected with between seawater filtering device and conditioning tower.
Be provided with seawater heat exchanger between condenser and conditioning tower, seawater heat exchanger is connected with concentrated seawater relief outlet.
This fume emission mouth connecting fan, blower fan connects chimney.
The smog discharge temperature of this dehumidifying tower fume emission mouth is 10 DEG C-60 DEG C.
Beneficial effect of the present invention is: adopt technique scheme, carry out contact heat-exchanging after flue gas enters conditioning tower with seawater, and simultaneously the seawater rear section that is heated is evaporated in flue gas, is humidified to flue gas.For ensureing the maximum amount of desalinizing seawater, the flue-gas temperature after humidification can a little more than flue gas dew point temperature 0-10oC.Flue gas after humidification is cooled to below flue gas dew point temperature after delivering to dehumidifying tower, water vapour condensation be separated rear recovery with flue gas and realize sea water desaltination from flue gas after flue gas supersaturation.Flue gas and seawater direct contact heat transfer have the high feature of heat transfer coefficient, gone out flue-gas temperature and the humidity of conditioning tower, can be realized the control of desalination water output by the controlled cooling model water yield and temperature of cooling water by the extra large water rate control controlling to enter conditioning tower.
In conditioning tower, flue gas can be realized removing of pollutent by contact with sea water washing.Flue gas can realize efficient heat and mass with direct contact of seawater, utilizes the weakly alkaline of seawater to realize removing of pollutent in flue gas.Meanwhile, flue gas contacts the seizure that also can realize particulate matter in flue gas with the direct of seawater, reduces the discharge of flue dust and fine particle.
The present invention, by the efficiency utilization of fume afterheat, reduces the cost of sea water desaltination, achieves sea water desaltination that is clean, efficient, low cost.Simultaneously the present invention utilizes the weakly alkaline of seawater and trapping effect to wash flue gas, achieves removing of pollutent in flue gas.The present invention is to promoting energy utilization rate further, and reduce energy consumption and the cost of sea water desaltination, alleviate the water resources pressure of China, the discharge simultaneously reducing pollutent in flue gas is all significant, has broad application prospects and important promotional value.
Accompanying drawing explanation
Fig. 1 is process system schema of the present invention.
Fig. 2 is the process system schema of embodiment 1.
Fig. 3 is the process system schema of embodiment 1.
Fig. 4 is the process system schema of embodiment 1.
Fig. 5 is the process system schema of embodiment 1.
Embodiment
As shown in Figure 1, a kind of seawater desalination system utilizing fume afterheat of the present invention, it comprises the seawater filtering device 1, conditioning tower 2, dehumidifying tower 3 and the fresh water treatment device 4 that are sequentially connected; Wherein, can be provided with sea-water pump 5 for carrying seawater after seawater filtering device 1, this sea-water pump can be arranged optional position according to demand.
This conditioning tower 2 has flue gas input aperture 21, passes into flue gas by this flue gas input aperture 21; This conditioning tower 2 has concentrated seawater relief outlet 22, and concentrated seawater is discharged from concentrated seawater relief outlet 22; This conditioning tower 2 has wet flue gas relief outlet 23, and wet flue gas is discharged from wet flue gas relief outlet 23 and is transported to dehumidifying tower 3.
This dehumidifying tower 3 has fume emission mouth 31, and humidification flue gas is discharged by fume emission mouth 31; This dehumidifying tower 3 has water coolant input aperture 32, and water coolant enters dehumidifying tower 3 from water coolant input aperture 32; This dehumidifying tower 3 has wet flue gas input aperture 33, and the flue gas of discharging from wet flue gas relief outlet 23 enters dehumidifying tower 3 by wet flue gas input aperture 33; This dehumidifying tower 3 has fresh water delivery port 34, and fresh water is flowed out by fresh water delivery port 34 and arrives fresh water treatment device 4.
This fresh water treatment device 4 comprises fresh water storage tank 41 and fresh water cooled device 42, and fresh water delivery port 34 is connected with fresh water storage tank 41, and fresh water storage tank 41 connects fresh water cooled device 42; This fresh water storage tank 41 has water outlet 411; The desalination water of desalinating is discharged by this water outlet, can be used for subsequent user to use; Fresh water cooled device 42 is connected with water coolant input aperture 32.
As shown in Figure 4, seawater filtering device 1 is in charge of 11 by first and is connected with fresh water cooled device 4, this fresh water cooled device 42 is provided with circulating water intake 421 and circulating water outlet 422, the first and is in charge of 11 and is connected with circulating water intake 421, and seawater is directly used as water coolant.
As shown in Figure 5, this fresh water cooled device 42 is provided with circulating water intake 421 and circulating water outlet 422, and this circulating water intake 421 is connected with heat pump set 6 respectively with circulating water outlet 422.
As shown in Figure 2-5, condenser 7 can also be connected with between seawater filtering device 1 and conditioning tower 2.As in Figure 3-5, can also be provided with seawater heat exchanger 8 between condenser 7 and conditioning tower 2, seawater heat exchanger 8 is connected with concentrated seawater relief outlet 22.Seawater, after seawater filtering device, is delivered to condenser through sea-water pump and is carried out heat exchange, and then seawater enters seawater heat exchanger further heat exchange raising seawater temperature again, and the concentrated seawater that conditioning tower is discharged passes into seawater heat exchanger and carries out heat exchange use.
As shown in Figure 2-5, this fume emission mouth 31 connecting fan 9, blower fan 9 connects chimney 10, by the fume emission that processed in air.
In order to ensure the maximum amount of desalinizing seawater, the flue-gas temperature after humidification can a little more than flue gas dew point temperature 0-10 DEG C, and therefore, the smog discharge temperature of this dehumidifying tower fume emission mouth is 10 DEG C-60 DEG C and is advisable.
Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment is implemented lower premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1: as shown in Figure 2, the present embodiment is the comprehensive UTILIZATION OF VESIDUAL HEAT IN integration seawater desalination system being applicable to fuel-burning power plant.Native system comprises: seawater filtering device 1, sea-water pump 5, condenser 7, conditioning tower 2, dehumidifying tower 3, fresh water storage tank 41, fresh water cooled device 42, blower fan 9, chimney 10.
In the present embodiment, seawater is pumped to turbine condenser through sea-water pump and carries out heat exchange after filtration unit; Seawater after heat exchange is delivered in conditioning tower and is carried out transmission of heat by contact mass transfer with the flue gas of boiler emission, is humidified to flue gas; After humidification, flue gas enters desuperheat dehumidification in dehumidifying tower, is recycled to desalination tank after the water vapor portion condensation in flue gas as desalination water; In desalination tank, part fresh water is as water coolant water coolant as dehumidifying tower after fresh water cooled device; The flue gas going out dehumidifying tower delivers to smoke stack emission to air after blower fan supercharging.
The waste-heat seawater making full use of condenser discharge in the present embodiment can increase the throughput that fume afterheat utilizes seawater desalination system, realize the comprehensive utilization of power plant system waste heat, utilize the pollutant load in seawater reduction flue gas simultaneously, improve performance driving economy and the environmental-protecting performance of power plant.
Embodiment 2: as shown in Figure 3, the present embodiment is the comprehensive UTILIZATION OF VESIDUAL HEAT IN integration seawater desalination system being applicable to fuel-burning power plant.Native system comprises: seawater filtering device 1, sea-water pump 5, condenser 7, seawater heat exchanger 8, conditioning tower 2, dehumidifying tower 3, fresh water storage tank 41, fresh water cooled device 42, blower fan 9, chimney 10.
In the present embodiment, seawater is pumped to turbine condenser through sea-water pump and carries out heat exchange after filtration unit; Then seawater enters deep or light seawater heat exchanger further heat exchange raising seawater temperature; Seawater after abundant heat exchange is delivered in conditioning tower and is carried out transmission of heat by contact mass transfer with the flue gas of boiler emission, is humidified to flue gas; After humidification, flue gas enters desuperheat dehumidification in dehumidifying tower, is recycled to desalination tank after the water vapor portion condensation in flue gas as desalination water; Part desalination water in desalination tank delivers to dehumidifying tower as the water coolant of dehumidifying tower after fresh water cooled device.The flue gas going out dehumidifying tower delivers to smoke stack emission to air after blower fan supercharging.
The waste-heat seawater that the present embodiment makes full use of fume emission further compared with embodiment 1 can increase the throughput that fume afterheat utilizes seawater desalination system further, improves performance driving economy and the environmental-protecting performance of power plant further.
Embodiment 3: as shown in Figure 4, the present embodiment is the comprehensive UTILIZATION OF VESIDUAL HEAT IN integration seawater desalination system being applicable to fuel-burning power plant.Native system comprises: seawater filtering device 1, sea-water pump 5, condenser 7, seawater heat exchanger 8, conditioning tower 2, dehumidifying tower 3, fresh water storage tank 41, fresh water cooled device 42, blower fan 9, chimney 10.
In the present embodiment, seawater delivers to turbine condenser respectively through sea-water pump pump after filtration unit) and fresh water cooled device carry out heat exchange; Then the seawater that seawater goes out condenser enters deep or light seawater heat exchanger) further heat exchange improve seawater temperature; Seawater after abundant heat exchange is delivered in conditioning tower and is carried out transmission of heat by contact mass transfer with the flue gas of boiler emission, is humidified to flue gas; After humidification, flue gas enters desuperheat dehumidification in dehumidifying tower, is recycled to desalination tank after the water vapor portion condensation in flue gas as desalination water; Part desalination water in desalination tank delivers to dehumidifying tower as the water coolant of dehumidifying tower after fresh water cooled device.The flue gas going out dehumidifying tower delivers to smoke stack emission to air after blower fan supercharging.
The present embodiment adds the cooling water source of seawater as fresh water cooled device compared with embodiment 2, makes full use of the waste heat of fume emission further.
Embodiment 4: the present embodiment is the comprehensive UTILIZATION OF VESIDUAL HEAT IN integration seawater desalination system being applicable to fuel-burning power plant as shown in Figure 5.Native system comprises: seawater filtering device 1, sea-water pump 5, condenser 7, seawater heat exchanger 8, conditioning tower 2, dehumidifying tower 3, fresh water storage tank 41, fresh water cooled device 42, blower fan 9, chimney 10 and heat pump set 6.
In the present embodiment, seawater is pumped to turbine condenser through sea-water pump and carries out heat exchange after filtration unit; Then the seawater that seawater goes out condenser enters the further heat exchange of deep or light seawater heat exchanger and improves seawater temperature; Seawater after abundant heat exchange is delivered in conditioning tower and is carried out transmission of heat by contact mass transfer with the flue gas of boiler emission, is humidified to flue gas; After humidification, flue gas enters desuperheat dehumidification in dehumidifying tower, is recycled to desalination tank after the water vapor portion condensation in flue gas as desalination water; Part desalination water in desalination tank delivers to dehumidifying tower as the water coolant of dehumidifying tower after fresh water cooled device.The flue gas going out dehumidifying tower delivers to smoke stack emission to air after blower fan supercharging.
The present embodiment comparatively embodiment 2 adds with heat pump set recovery fresh water cooled device heat, reduces the temperature of going in dehumidifying tower, achieves the dual purpose with flue gas waste heat recovery and sea water desaltination.
Claims (8)
1. utilize a seawater desalination system for fume afterheat, it is characterized in that, it comprises the seawater filtering device, conditioning tower, dehumidifying tower and the fresh water treatment device that are sequentially connected;
This conditioning tower has flue gas input aperture, passes into flue gas by this flue gas input aperture; This conditioning tower has concentrated seawater relief outlet, and concentrated seawater is discharged from concentrated seawater relief outlet; This conditioning tower has wet flue gas relief outlet, and wet flue gas is discharged from wet flue gas relief outlet and is transported to dehumidifying tower;
This dehumidifying tower has fume emission mouth, and humidification flue gas is discharged by fume emission mouth; This dehumidifying tower has water coolant input aperture, and water coolant enters dehumidifying tower from water coolant input aperture; This dehumidifying tower has wet flue gas input aperture, and the flue gas of discharging from wet flue gas relief outlet enters dehumidifying tower by wet flue gas input aperture; This dehumidifying tower has fresh water delivery port, and fresh water is flowed out by fresh water delivery port and arrives fresh water treatment device.
2. a kind of seawater desalination system utilizing fume afterheat as claimed in claim 1, it is characterized in that, this fresh water treatment device comprises fresh water storage tank and fresh water cooled device, and fresh water delivery port is connected with fresh water storage tank, and fresh water storage tank connects fresh water cooled device; This fresh water storage tank has water outlet;
Fresh water cooled device is connected with water coolant input aperture.
3. a kind of seawater desalination system utilizing fume afterheat as claimed in claim 2, it is characterized in that, seawater filtering device is in charge of by first and is connected with fresh water cooled device, and this fresh water cooled device is provided with circulating water intake and circulating water outlet, and first is in charge of and is connected with circulating water intake.
4. a kind of seawater desalination system utilizing fume afterheat as claimed in claim 2, it is characterized in that, this fresh water cooled device is provided with circulating water intake and circulating water outlet, and this circulating water intake is connected with heat pump set respectively with circulating water outlet.
5. a kind of seawater desalination system utilizing fume afterheat as claimed in claim 1, is characterized in that, be connected with condenser between seawater filtering device and conditioning tower.
6. a kind of seawater desalination system utilizing fume afterheat as claimed in claim 5, it is characterized in that, be provided with seawater heat exchanger between condenser and conditioning tower, seawater heat exchanger is connected with concentrated seawater relief outlet.
7. a kind of seawater desalination system utilizing fume afterheat as claimed in claim 1, is characterized in that, this fume emission mouth connecting fan, and blower fan connects chimney.
8. a kind of seawater desalination system utilizing fume afterheat as claimed in claim 1, it is characterized in that, the smog discharge temperature of this dehumidifying tower fume emission mouth is 10 DEG C-60 DEG C.
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| CN105036220B (en) * | 2015-07-16 | 2017-09-01 | 浙江大学 | A kind of seawater or brackish water desalination device and method of drying that be humidified |
| CN105174332A (en) * | 2015-07-16 | 2015-12-23 | 浙江大学 | Method for processing garbage leachate and device thereof |
| CN109751095A (en) * | 2019-01-16 | 2019-05-14 | 南京航空航天大学 | The water-electricity cogeneration system and working method of cascade utilization fume waste heat concentrate solution |
| CN110141928B (en) * | 2019-05-15 | 2022-03-01 | 杭州蕴泽环境科技有限公司 | Device and method for preparing fresh water from ship wet desulphurization tail gas at low cost |
| CN113440985A (en) * | 2021-06-08 | 2021-09-28 | 威海金宏科技有限公司 | Multi-effect heat exchange wastewater recovery process and system for humidification-dehumidification tower |
| CN113426257A (en) * | 2021-06-08 | 2021-09-24 | 威海金宏科技有限公司 | Wastewater recovery process and system based on low-grade heat source |
| CN113440984A (en) * | 2021-06-08 | 2021-09-28 | 威海金宏科技有限公司 | Waste water recovery process and system based on hot flue gas and adsorbent |
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| CN101792191A (en) * | 2010-03-11 | 2010-08-04 | 何宗彦 | Internal-combustion engine assisted sea water desalinization/poor-quality water purification method and device thereof |
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