CN104944494A - Method and system for cogeneration of air conditioner and advection type sea water desalting device - Google Patents
Method and system for cogeneration of air conditioner and advection type sea water desalting device Download PDFInfo
- Publication number
- CN104944494A CN104944494A CN201510305492.XA CN201510305492A CN104944494A CN 104944494 A CN104944494 A CN 104944494A CN 201510305492 A CN201510305492 A CN 201510305492A CN 104944494 A CN104944494 A CN 104944494A
- Authority
- CN
- China
- Prior art keywords
- seawater
- water
- effect
- temperature
- sea water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a method for cogeneration of an air conditioner and an advection type sea water desalting device. The method comprises the following steps: condensation heat in the refrigeration process of the air conditioner is used as a heat source, and an advection type low temperature multiple-effect distillation method is adopted to conduct sea water desaltation; fresh water steam in the former effect enters the latter effect to be subjected to condensation, the temperature of the fresh water steam is reduced effect by effect, and the temperature of the fresh water steam generated in the last effect is lower than 20 DEG C; sea water in a first sea water source is taken to condense the fresh water steam generated in the last effect; sea water in a second sea water source is taken as sea water to be desalted, and the sea water to be desalted is preheated through fresh water and concentrated sea water generated in other effects, wherein the temperature of the second sea water source is greater than that of the first sea water source. The invention further discloses a system for cogeneration of the air conditioner and the advection type sea water desalting device. Temperature difference of low temperature waste heat generated by the air conditioner and the sea water in the sea is utilized, so that the fresh water productivity and the energy utilization rate are improved.
Description
Technical field
The present invention relates to desalination technology, the method and system of particularly a kind of air-conditioning and the coproduction of flat flow sea water desalinating plant.
Background technology
In recent years, China's domestic air conditioning is day by day universal in city.Calendar year 2001 to 2013 year, the output of China Domestic air conditioning market increases progressively with the trend of annual average compound growth rate 17.29%, and within 2013, China's domestic air conditioning output is 13,057 ten thousand.Summer when family expenses air conditioner refrigerating time, its Main Function makes room temperature lowering, and the heat of condensation of air-conditioning system is directly discharged in air, is not used.Discharge a large amount of heat of condensation to atmospheric environment when unit cooler is run under air conditioning condition, usual heat of condensation can reach 1.15 ~ 1.3 times of refrigerating duty.A large amount of heat of condensation directly enters air, loses in vain, causes larger energy dissipation; distributing and ambient temperature being raised of these heats, causes serious environmental thermal pollution, so; in order to save energy and protection of the environment, air conditioner afterheat is recycled and is just seemed necessary.
Water maintains life and healthy primary demand, although the earth has the area of 71% to be covered by water, Freshwater resources are but extremely limited.Current global Freshwater resources only account for 2.5% of its total Water, wherein more than 70% are frozen in the ice sheet of the South Pole and the arctic, add the mountain glacier and permafrost accumulated snow that are difficult to utilize, have the Freshwater resources of 86% to be difficult to utilize.The Freshwater resources that the mankind really can utilize are the parts in rivers and lakes and underground water, only take up an area 0.26% of ball total Water.At present, there is population, the about lack of water of people more than 1,000,000,000 of 1/6 in the whole world.Expert estimates, will more than 2,500,000,000 to world's lack of water population in 2025.Be distributed in region, temporal malconformation again due to fresh water on the earth, and the mankind are to the pollution at water source, fresh water available quantity is not only restricted, and sharply reduces.Water shortage problem has been a difficult problem for the social sustainable development of a whole world facing.Under the use water form and current conditions of this sternness, the proposition of sea water desaltination and application have great realistic meaning.
Sea water desaltination refers to removes the excess salt in water and mineral substance the operation obtaining fresh water, and its actualizing technology mainly contains distillation method, reverse osmosis method, electroosmose process, cold method etc.Distillation method comprises multiple-effect distillation, multistage flash vaporization, membrane distillation method, solar distilling method etc.Distillation ratio juris is that seawater is heated vaporization, water vapor condensation and obtain fresh water, it has that equipment is simple and reliable, dirt-proof performance is good, be easy to maximize, water production rate and can utilize the advantages such as low grade heat energy, but the method needs outside heat supply, and the gasification latent heat of water is larger, so energy consumption is higher.
At present, distillation method technology maturation, low temperature multiple-effect distillation sea water desalting technology is wherein a kind of very promising desalination technology, worldwide obtains and applies more widely.Application number be 201110398281.7 patent document discloses a kind of low temperature multi-effect seawater desalting system, it mainly comprises many group heat pipe-type multiple-effect evaporators, steam injector TVC, water cooler, air water releasing device, steam separator, water ring vacuum pump, raw water pump, light pump, Steam Turbine Through IP Admission, turbine low pressure cylinder etc.This characteristic feature of an invention is, described multiple-effect evaporator is many groups, utilize the heat transfer property of heat pipe, by the cyclic steam in steam injector TVC injection water cooler and turbine low pressure cylinder steam discharge, the steam making cyclic steam and turbine low pressure cylinder steam discharge become higher quality enters heat pipe evaporator, thus improves evaporation of seawater efficiency.Meanwhile, this invention utilizes again inferior turbine low pressure cylinder steam discharge, improves the utilization ratio of the energy and the efficiency of power plant, and the steam produced by heat pipes heat, as the thermal source of later several groups of vaporizers, improves the utilization ratio of steam.What utilize due to this invention is inferior turbine low pressure cylinder steam discharge, so it is a kind of relatively large payable seawater desalination system in fact.
Application number be 201110174880.0 patent document discloses a kind of industrial waste heat low-temperature multi-effect seawater desalting system, it comprises multiple-effect sea water evaporator, end effect condenser, charging seawater pipe, cooling water outlet pipe, water coolant flowing pipe, strong brine outlet pipe, condensed water transfer lime, product water return line, multiple spray equipment, multiple strong brine flowing pipe, multiple product water flowing pipes etc.Industrial exhaust heat is applied in low temperature multi-effect seawater desalting system by this invention, the high-temperature residual heat utilizing industrial user to produce is as the energy, working steam is converted to by industrial exhaust heat boiler, this working steam is utilized to carry out low-temperature multiple-effect seawater desalination, the product water that first evaporator produces is back to industrial exhaust heat boiler, recycle, thus the water producing cost reducing low temperature multi-effect seawater desalting system.Equally, this invention is also a kind of relatively large payable seawater desalination system.
Low temperature multi-effect seawater desalting system middle-size and small-size is at present owing to cannot obtain stable used heat thermal source, most consumption primary energy source, water producing cost is very high, although also there is investigator to propose the device adopting air conditioner heat to desalinize seawater, application number be 200610124010.1 patent document discloses a kind of air conditioner refrigerating and sea water desalting integral device, comprise compressor, condenser, expansion valve, vaporizer, induced draft fan, exhaust blower and sprinkling system, described compressor is connected by pipeline with condenser, exhaust blower is arranged on the side of condenser, connected by expansion valve between condenser and vaporizer, induced draft fan is arranged on the other side of the vaporizer relative with condenser, and between condenser and vaporizer, be provided with the air channel communicated with induced draft fan, the side of vaporizer is provided with blast inlet, described sprinkling system is arranged between condenser and exhaust blower.Although said apparatus make use of the used heat of air-conditioning to carry out sea water desaltination, only use single-action work, and the temperature of waste heat that air-conditioning produces is lower, generally only has 40 ~ 50 DEG C, actual fresh water low yield, actual water supply application cannot be met.
Summary of the invention
The invention discloses a kind of air-conditioning and sea water desaltination co-production, the used heat of air-conditioning is utilized to carry out low temperature multiple-effect distillation to produce fresh water, improve energy utilization rate, reduce the cost desalinized seawater, and decrease environmental thermal pollution, utilize temperature difference of seawater to improve fresh water productive rate simultaneously, there is good economic benefit.
A method for air-conditioning and the coproduction of flat flow sea water desalinating plant, comprises the following steps:
Using the heat of condensation in air conditioner refrigerating process as thermal source, flat flow low-temperature multiple-effect distillation is adopted to carry out sea water desaltination;
The fresh water steam of a upper effect enters next effect and carries out condensation, and the temperature of fresh water steam reduces by effect, and the fresh water vapor temperature of last effect output is lower than 20 DEG C;
Get the fresh water steam of last effect output of seawater condensing of the first source of seawater;
The seawater getting the second source of seawater is as seawater to be diluted, and by fresh water and the concentrated seawater preheating seawater to be diluted of its residual effect output, the temperature of described second source of seawater is higher than the temperature of the first source of seawater.
Adopt heat of condensation in the refrigerative circle system of air-conditioning as thermal source in the present invention, for the air conditioner condensation heat that heat production temperature is lower, carry out sea water desaltination in conjunction with low-temperature multiple-effect distillation, improve efficiency of energy utilization, there is good seawater fresh water productive rate, utilize in ocean along with change in depth simultaneously, seawater has the phenomenon of the temperature difference, adopt last effect fresh water steam of the first source of seawater condensation that temperature is lower, what the temperature of the fresh water steam of last effect output can be arranged is lower, when the first effect is temperature-resistant, increase the temperature difference between the first effect and last effect, thus increase the effect number of low temperature multiple-effect distillation, improve fresh water productive rate, seawater to be diluted then adopts temperature higher than the second source of seawater of the first source of seawater, the temperature of the seawater to be diluted that the second source of seawater provides is higher, when then carrying out preheating the required time and energy consumption fewer, warm up time can be reduced, improve the temperature after the preheating of seawater to be diluted, further raising efficiency of energy utilization and fresh water productive rate.
Under advection feeding manner, pump into all effect groups by parallel for material seawater, do not need to arrange pump between extra effect and material water is carried repeatedly, therefore, the systems pumps merit consumption of advection charging generally lower than adverse current feeding and forward feeding, and Systematical control and operation also comparatively simple.
In order to reduce energy consumption, preferably, the heat source temperature described in control is at 40 ~ 55 DEG C.40 ~ 55 DEG C of heat of condensation temperature being common air-conditioning and producing, using the inventive method without the need to increasing the power of air-conditioning to improve temperature, still having higher fresh water productive rate, thus reduce the consumption of the energy, when heat source temperature is 40 DEG C, minimum effect number reaches 7 effects.
The generally refrigerating function of using air-condition when temperature is higher, now the skin temperature of ocean is higher, deep sea water temperature is lower, water temperature generally reduces with the increase of the degree of depth, therefore, when using air-condition refrigeration in summer, the first source of seawater that temperature is lower takes from deep sea water, and the second source of seawater that temperature is higher takes from shallow layer sea water.
In the present invention, as long as the fresh water vapor temperature that the temperature of the first source of seawater imitates output lower than last can realize condensation, therefore, preferably, the temperature of described first source of seawater is 13 ~ 18 DEG C.
The temperature of the second source of seawater is more high better, can reduce the energy needed for preheating, and preferably, the temperature of described second source of seawater is 27 ~ 35 DEG C.
Present invention also offers a kind of air-conditioning and sea water desaltination co-generation system, compact construction, energy utilization rate are high, and have higher fresh water productive rate.
The system of a kind of air-conditioning and the coproduction of flat flow sea water desalinating plant, comprise the air-conditioning with refrigerating cycle unit, also comprise flat flow low temperature multiple-effect distillation device, described flat flow low temperature multiple-effect distillation device comprises: multi-effect distilling unit, the fresh water collecting liquid fresh water collects pipeline, collect the outer comb of density wastewater of end concentrated seawater, the fresh water condenser of fresh water steam of last effect distillation unit output of condensation and the seawater preheating device of preheating seawater to be diluted, each effect distillation unit is all provided with preheating sea intake, the concentrated seawater water outlet of each effect distillation unit is connected to the outer comb of density wastewater, the temperature of the fresh water steam of last effect distillation unit output is lower than 20 DEG C,
The condenser of described refrigerating cycle unit distills the condensation module of unit as the first effect;
Described fresh water condenser comprises fresh water vapour passage and condensation water channel, and the two ends of described condensation water channel are communicated with the first seawater inlet pipe and seawater water shoot;
Described seawater preheating device comprises connection fresh water and collects the product water channel of pipeline, the concentrated seawater passage connecting the outer comb of density wastewater and sea water passage, the two ends of described sea water passage are communicated with the second seawater inlet pipe and pre-hot sea water rising pipe, the preheating sea intake of described pre-hot sea water rising pipe access multi-effect distilling unit, passes into the seawater temperature of the second seawater inlet pipe higher than the seawater temperature passing into the first seawater inlet pipe.
In present system, using the condensation module of the condenser of air-conditioning as the first effect distillation unit, thus make entire system compacter, reduce overall volume; The condensation of last effect fresh water steam and the preheating of seawater to be diluted are carried out heat exchange by the seawater of different two heat exchange units and differing temps, use last effect fresh water steam of low temperature seawater condensation, what last effect fresh water vapor temperature was arranged is lower, thus when the first effect is temperature-resistant, add the effect number of distillation unit, improve fresh water productive rate; And pass into the seawater temperature to be diluted of the second seawater inlet pipe higher than the seawater temperature passing into the first seawater inlet pipe, the temperature passing into the seawater to be diluted of the second seawater inlet pipe is higher, when then carrying out preheating the required time and energy consumption fewer, warm up time can be reduced, improve the temperature after the preheating of seawater to be diluted, improve efficiency of energy utilization and fresh water productive rate further.
Under advection feeding manner, pump into all effect groups by parallel for material seawater, do not need to arrange pump between extra effect and material water is carried repeatedly, therefore, the systems pumps merit consumption of advection charging generally lower than adverse current feeding and forward feeding, and Systematical control and operation also comparatively simple.
In order to simplified apparatus structure, preferably, described seawater preheating device is triple channel interchanger, and triple channel is respectively product water channel, concentrated seawater passage and sea water passage.
The effect number of water distilling apparatus is more, then required between the first effect and last effect temperature difference is larger, and in order to reduce energy consumption, preferably, the condenser heating temperature of described air-conditioning is 40 ~ 55 DEG C.When condenser heating temperature is 40 DEG C, at least there are 20 DEG C of temperature difference between the first effect and last effect, 7 effect water distilling apparatus at least can be set, there is good fresh water productive rate.
In order to improve heat transfer effect, preferably, described seawater preheating device adopts hot and cold stream countercurrent heat exchange method to connect.
In order to improve heat transfer effect, preferably, described fresh water condenser adopts hot and cold stream countercurrent heat exchange method to connect.
Beneficial effect of the present invention:
Air-conditioning of the present invention and sea water desaltination co-production and system, make use of the temperature difference of seawater in the low-temperature waste heat and ocean that air-conditioning produces, low temperature seawater condensation fresh water is used to increase the effect number of water distilling apparatus, improve fresh water productive rate, utilize high temperature seawater to be used as seawater to be diluted simultaneously and carry out preheating, reduce seawater intensification and arrive vaporization temperature institute heat requirement, improve evaporation of seawater rate and energy utilization rate, improve fresh water productive rate further.
Accompanying drawing explanation
Fig. 1 is the structural representation of present system.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the air-conditioning of the present embodiment and sea water desaltination co-production and system, comprise the air-conditioning and flat flow low temperature multiple-effect distillation device with refrigerating cycle unit.
Refrigerating cycle unit comprises compressor 23, condenser 22, throttling set 2 and vaporizer 1.Compressor 23 exports and is connected with condenser 22 entrance, and condenser 22 exports and is connected with throttling set 2 entrance, and throttling valve 23 exports and is connected with vaporizer 1 entrance, and vaporizer 1 exports and is connected with compressor 23 entrance, is made into a complete refrigeration cycle.
Low temperature multiple-effect distillation device comprises: n imitates water distilling apparatus 3, n sprayed sea water entrance stopper 4-1 ~ 4-n, n vacuum pump inlet stopper 5-1 ~ 5-n, vacuum pump 6, fresh water condenser 9, first seawater inlet strainer 10, first seawater inlet water pump 11, water outlet water pump 12, shallow layer sea water entrance water pump 13, concentrated seawater outlet water pump 14, second seawater inlet strainer 15, concentrated seawater outlet stopper 16, water outlet stopper 17, seawater preheating device 18, n-1 seawer outlet dropping equipment 20-1 ~ 20-n-1 and n-2 water outlet dropping equipment 21-2 ~ 21-n-1.
N is imitated in water distilling apparatus 3, and first effect to last effect respectively is the first effect water distilling apparatus 3-1, the second effect water distilling apparatus 3-2 ... n-th effect water distilling apparatus 3-n; Comprise the condenser 22 of described Air-conditioning Cycle device, spray equipment 7 and gas-liquid separation device 13, second effect in its first effect water distilling apparatus 3-1 and all comprise vaporizer-condenser 19, spray equipment 7 and gas-liquid separation device 13 to each effect of n-th effect water distilling apparatus 3-2 ~ 3-n.
Second seawater inlet II is connected with the second seawater inlet water pump 13 entrance, the second seawater inlet water pump 13 export be connected with the second seawater inlet strainer 15 entrance, the second seawater inlet strainer 15 exports and is connected with seawater preheating device 18 entrance a2, seawater preheating device 18 exports b2 and is divided into n passage, be connected with sprayed sea water entrance stopper 5-1 ~ 5-n entrance respectively, spray equipment 7 entrance that each sprayed sea water entrance stopper 5-1 ~ 5-n exports corresponding thereto is connected, and each spray equipment 7 exports and is all positioned at corresponding each effect water distilling apparatus 3 top.A concentrated seawater exit passageway is respectively arranged at the bottom of each effect water distilling apparatus 3, be connected with seawer outlet dropping equipment 20-1 ~ 20-n-1 entrance respectively except last effect, each seawer outlet dropping equipment 20-1 ~ 20-n-1 outlet is all connected with seawater preheating device 18 entrance a3, last effect concentrated seawater exit passageway is directly connected with seawater preheating device 18 entrance a3, seawater preheating device 18 exports b3 and exports stopper 16 entrance with concentrated seawater and be connected, concentrated seawater outlet stopper 16 exports and exports water pump 14 entrance with concentrated seawater and be connected, concentrated seawater outlet water pump 14 exports I with concentrated seawater and is connected.
The gas-liquid separation device 8 that each effect water distilling apparatus inside is equipped with, it is inner that its entrance is positioned at this effect water distilling apparatus 3, first effect imitate the gas-liquid separation device 8 in water distilling apparatus 3-1 ~ 3-n-1 to n-1 outlet all vaporizer-condenser 19 entrance of imitating with next in water distilling apparatus 3 communicate, the outlet of each effect vaporizer-condenser 19 and each product water channel, be connected with water outlet dropping equipment 21-2 ~ 21-n-1 entrance respectively except last effect, each water outlet dropping equipment 21-2 ~ 21-n-1 outlet is all connected with the entrance a1 of seawater preheating device 18, last effect product water channel is directly connected with the entrance a1 of seawater preheating device 18, the outlet b1 of seawater preheating device 18 is connected with water outlet stopper 17 entrance, water outlet stopper 17 exports and is connected with water outlet water pump 12 entrance, water outlet water pump 12 exports and is connected with water outlet III, gas-liquid separation device 8 in n-th effect water distilling apparatus 3-n exports and is connected with the entrance c2 of fresh water condenser 9, and the product water channel that outlet d2 and the main heat exchanger 9 of fresh water condenser 9 export between b1 with water outlet stopper 17 entrance is connected.
First seawater inlet IV is connected with the first seawater inlet water pump 11 entrance, first seawater inlet water pump 11 exports and is connected with the first seawater inlet strainer 10 entrance, first seawater inlet strainer 10 exports and is connected with the entrance c1 of fresh water condenser 9, and outlet d1 and the low temperature seawater of fresh water condenser 9 export V and be connected.A passage is also left at the top of each effect water distilling apparatus 3, exports respectively be connected with a vacuum pump outlet stopper 5-1 ~ 5-n, and each vacuum pump outlet stopper 5-1 ~ 5-n entrance all exports with vacuum pump 6 and is connected, and vacuum pump 6 entrance communicates with air.
Air conditioner refrigerating working cycle: refrigeration agent is compressed into high temperature and high pressure gas and enters condenser 22 and imitate seawater to make heat exchange in water distilling apparatus with sea water desalinating plant first in compressor 23, cooled and enter throttling set 2 after being condensed into liquid further and reduce pressure, partially liq flashes into steam, the mixture of these gas-liquid two-phases enters vaporizer 1, compressor is returned after evaporation becomes steam absorb heat refrigeration indoor in vaporizer while, thus complete a refrigeration cycle, in this working cycle, air-conditioning refrigerant selects R134a, also other refrigeration agent can be selected, such as R1234yf, R410A or R407C, the present embodiment uses under the refrigerating environment of daily air-conditioning, now, the temperature of the heat that condenser 24 produces is generally at 40 ~ 50 DEG C.
Summer, shallow layer sea water temperature was higher, and generally at 27 ~ 35 DEG C, using shallow layer sea water as the second source of seawater, the temperature of deep sea water is lower, adopted temperature at the deep sea water of 13 ~ 18 DEG C as the first source of seawater.
Desalting process: shallow-layer high temperature seawater was introduced after the second seawater inlet strainer 15 filters by the second seawater inlet water pump 13 and passed into seawater preheating device 18 again summer, each effect water distilling apparatus 3 is passed into after heating up with fresh water and strong brine heat exchange, a sprayed sea water entrance stopper 4 is all provided with, for controlling seawater turnover between each effect water distilling apparatus 3 seawater inlet and seawater preheating device 18.The seawater entering each effect water distilling apparatus 3 sprays to vaporizer-condenser 19 pipeline external (seawater spraying of the first effect water distilling apparatus is to condenser 22 pipeline external) by spray equipment 7, and carry out heat exchange evaporation with upper one refrigeration agent of imitating in steam or condenser 22 that water distilling apparatus 3 produces in vaporizer-condenser 19, a part of evaporation of seawater become steam by vaporizer-condenser 19 pipeline that enters next after gas-liquid separation device 8 and imitate with next seawater to make heat exchange of imitating; Part seawater is condensed into concentrated seawater, flowed out by each effect water distilling apparatus 3 outlet at bottom passage, and pass into seawater preheating device 18 via after seawer outlet dropping equipment 20 step-down, the concentrated seawater that last effect produces directly passes into seawater preheating device 18, the high temperature seawater heat exchange of all concentrated seawaters and import exports water pump 14 via concentrated seawater again after lowering the temperature and discharges, be provided with concentrated seawater between concentrated seawater outlet water pump 14 and seawater preheating device 18 and export stopper 16, control concentrated seawater and discharge; Be cooled to fresh water after steam heat-exchanging in vaporizer-condenser 19 simultaneously, discharged by water outlet water pump 12 by discharging after seawater preheating device 18 is lowered the temperature after water outlet dropping equipment 21 step-down, the fresh water that last effect produces directly is discharged and is discharged by water outlet water pump 12 after seawater preheating device 18 is lowered the temperature, be provided with water outlet stopper 17 between water outlet water pump 12 and seawater preheating device 18, control fresh water and discharge.The condenser 22 of the seawater and Air-conditioning Cycle device that pass into the first effect water distilling apparatus 3-1 carries out heat exchange, the steam that last effect water distilling apparatus 3-n produces directly passes into fresh water condenser 9 and lower the temperature with deep low-temperature seawater to make heat exchange, then each with other after seawater preheating device 18 heat exchange imitate the fresh water produced converge after together with discharge.Low temperature seawater is entered after fresh water condenser 9 heat exchange heats up by the first seawater inlet water pump 11 and the first seawater inlet strainer 10 and directly discharges.Each effect water distilling apparatus 3 is evacuated to the vacuum tightness set by vacuum pump 6 before plant running, and vacuum pump 6 and each effect between water distilling apparatus 3 are all provided with a vacuum pump outlet stopper 5 for controlling each effect water distilling apparatus 3 internal gas pressure.
In working cycle the energy derive of sea water desaltination part be the condensation of air-conditioning condenser inner refrigerant release heat that is about 40 ~ 50 DEG C cryogenic condensation heat.
The air-conditioning of the present embodiment and the working process of sea water desaltination co-production and system as follows: before system cloud gray model, first confirm all anhydrous in each pipeline and container and seal, close shower seawater inlet stopper 4, concentrated seawater outlet stopper 16 and water outlet stopper 17, open vacuum pump outlet stopper 5, open vacuum pump 6, each effect water distilling apparatus 3 is evacuated to the vacuum tightness set.Then close vacuum pump outlet stopper 5, close vacuum pump 6 afterwards, start the first seawater inlet water pump 11, second seawater inlet water pump 13 subsequently, then open shower seawater inlet stopper 4, and start compressor 23 and run Air-conditioning Cycle device.After treating that product water channel and concentrated seawater passage are full of water, start fresh water outlet water pump 12 and concentrated seawater effluent water pump 14, open concentrated seawater outlet stopper 16 and water outlet stopper 17 afterwards.Until whole system run for some time stable after, air conditioner low temperature heat of condensation and thermal gradient energy of sea water can be utilized to produce a certain amount of desalinizing seawater.
The present embodiment when reality uses,
The parameter of air-conditioning:
Power: 1.5P;
Refrigerating duty: 3500W;
Refrigeration agent: R134a;
Vaporization temperature: 7.2 DEG C;
Condensing temperature: 54.4 DEG C.
The parameter of low temperature multiple-effect distillation device:
First effect water distilling apparatus temperature: 50 DEG C;
The temperature of the first source of seawater that the first seawater inlet IV passes into: 15 DEG C;
The temperature of the second source of seawater that the second seawater inlet II passes into: 30 DEG C;
Effect number: 12;
Second source of seawater inlet flow rate: 0.042kg/s.
End effect vapor temperature: 18 DEG C;
Simulation producing water ratio is about: 0.018kg/s, product water per hour is about 65kg, produces water every day and can reach 1.55 tons.
Claims (9)
1. a method for air-conditioning and the coproduction of flat flow sea water desalinating plant, is characterized in that, comprise the following steps:
Using the heat of condensation in air conditioner refrigerating process as thermal source, flat flow low-temperature multiple-effect distillation is adopted to carry out sea water desaltination;
The fresh water steam of a upper effect enters next effect and carries out condensation, and the temperature of fresh water steam reduces by effect, and the fresh water vapor temperature of last effect output is lower than 20 DEG C;
Get the fresh water steam of last effect output of seawater condensing of the first source of seawater;
The seawater getting the second source of seawater is as seawater to be diluted, and by fresh water and the concentrated seawater preheating seawater to be diluted of its residual effect output, the temperature of described second source of seawater is higher than the temperature of the first source of seawater.
2. the method for air-conditioning as claimed in claim 1 and the coproduction of flat flow sea water desalinating plant, it is characterized in that, the heat source temperature described in control is at 40 ~ 55 DEG C.
3. the method for air-conditioning as claimed in claim 1 or 2 and the coproduction of flat flow sea water desalinating plant, it is characterized in that, the temperature of described first source of seawater is 13 ~ 18 DEG C.
4. the method for air-conditioning as claimed in claim 1 or 2 and the coproduction of flat flow sea water desalinating plant, it is characterized in that, the temperature of described second source of seawater is 27 ~ 35 DEG C.
5. the system of an air-conditioning and the coproduction of flat flow sea water desalinating plant, comprise the air-conditioning with refrigerating cycle unit, it is characterized in that, also comprise flat flow low temperature multiple-effect distillation device, described flat flow low temperature multiple-effect distillation device comprises: multi-effect distilling unit, the fresh water collecting liquid fresh water collects pipeline, collect the outer comb of density wastewater of end concentrated seawater, the fresh water condenser of fresh water steam of last effect distillation unit output of condensation and the seawater preheating device of preheating seawater to be diluted, each effect distillation unit is all provided with preheating sea intake, the concentrated seawater water outlet of each effect distillation unit is connected to the outer comb of density wastewater, the temperature of the fresh water steam of last effect distillation unit output is lower than 20 DEG C,
The condenser of described refrigerating cycle unit distills the condensation module of unit as the first effect;
Described fresh water condenser comprises fresh water vapour passage and condensation water channel, and the two ends of described condensation water channel are communicated with the first seawater inlet pipe and seawater water shoot;
Described seawater preheating device comprises connection fresh water and collects the product water channel of pipeline, the concentrated seawater passage connecting the outer comb of density wastewater and sea water passage, the two ends of described sea water passage are communicated with the second seawater inlet pipe and pre-hot sea water rising pipe, the preheating sea intake of described pre-hot sea water rising pipe access multi-effect distilling unit, passes into the seawater temperature of the second seawater inlet pipe higher than the seawater temperature passing into the first seawater inlet pipe.
6. the system of air-conditioning as claimed in claim 5 and the coproduction of flat flow sea water desalinating plant, it is characterized in that, described seawater preheating device is triple channel interchanger, and triple channel is respectively product water channel, concentrated seawater passage and sea water passage.
7. the system of air-conditioning as claimed in claim 6 and the coproduction of flat flow sea water desalinating plant, it is characterized in that, the condenser heating temperature of described air-conditioning is 40 ~ 55 DEG C.
8. the system of the air-conditioning as described in claim as arbitrary in claim 5 ~ 6 and the coproduction of flat flow sea water desalinating plant, is characterized in that, described seawater preheating device adopts hot and cold stream countercurrent heat exchange method to connect.
9. the system of the efficient air-conditioning as described in claim as arbitrary in claim 5 ~ 6 and the coproduction of flat flow sea water desalinating plant, is characterized in that, described fresh water condenser adopts hot and cold stream countercurrent heat exchange method to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305492.XA CN104944494B (en) | 2015-06-04 | 2015-06-04 | A kind of air-conditioning and the method and system of flat flow sea water desalinating unit coproduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305492.XA CN104944494B (en) | 2015-06-04 | 2015-06-04 | A kind of air-conditioning and the method and system of flat flow sea water desalinating unit coproduction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104944494A true CN104944494A (en) | 2015-09-30 |
| CN104944494B CN104944494B (en) | 2017-10-31 |
Family
ID=54159637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510305492.XA Expired - Fee Related CN104944494B (en) | 2015-06-04 | 2015-06-04 | A kind of air-conditioning and the method and system of flat flow sea water desalinating unit coproduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104944494B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604921A (en) * | 2022-02-22 | 2022-06-10 | 广东南大机器人有限公司 | Seawater desalination system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975286A (en) * | 2006-12-01 | 2007-06-06 | 华南理工大学 | Air conditioner refrigerating and sea water desalting integral device and using method thereof |
| CN101734822A (en) * | 2008-11-21 | 2010-06-16 | 中国神华能源股份有限公司 | Low-temperature multi-effect seawater desalination device and use method |
| CN101948148A (en) * | 2010-10-22 | 2011-01-19 | 河北宏润重工集团有限公司 | Energy-saving low-temperature multiple-effect seawater desalting device |
| WO2011010205A1 (en) * | 2009-07-20 | 2011-01-27 | National University Of Singapore | Desalination system and method |
| CN102107915A (en) * | 2009-12-29 | 2011-06-29 | 中国神华能源股份有限公司 | Low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water |
| CN201999824U (en) * | 2010-11-26 | 2011-10-05 | 中国科学院广州能源研究所 | Sea water desalination system combining solar heat pump and air conditioner |
| CN203159268U (en) * | 2013-01-23 | 2013-08-28 | 中国电子工程设计院 | solar air conditioning seawater desalination system |
| CN104030385A (en) * | 2014-06-30 | 2014-09-10 | 上海伏波环保设备有限公司 | Indirect low-temperature multi-effect seawater desalination system by using waste heat of exhaust gas of ship engine |
-
2015
- 2015-06-04 CN CN201510305492.XA patent/CN104944494B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975286A (en) * | 2006-12-01 | 2007-06-06 | 华南理工大学 | Air conditioner refrigerating and sea water desalting integral device and using method thereof |
| CN101734822A (en) * | 2008-11-21 | 2010-06-16 | 中国神华能源股份有限公司 | Low-temperature multi-effect seawater desalination device and use method |
| WO2011010205A1 (en) * | 2009-07-20 | 2011-01-27 | National University Of Singapore | Desalination system and method |
| CN102107915A (en) * | 2009-12-29 | 2011-06-29 | 中国神华能源股份有限公司 | Low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water |
| CN101948148A (en) * | 2010-10-22 | 2011-01-19 | 河北宏润重工集团有限公司 | Energy-saving low-temperature multiple-effect seawater desalting device |
| CN201999824U (en) * | 2010-11-26 | 2011-10-05 | 中国科学院广州能源研究所 | Sea water desalination system combining solar heat pump and air conditioner |
| CN203159268U (en) * | 2013-01-23 | 2013-08-28 | 中国电子工程设计院 | solar air conditioning seawater desalination system |
| CN104030385A (en) * | 2014-06-30 | 2014-09-10 | 上海伏波环保设备有限公司 | Indirect low-temperature multi-effect seawater desalination system by using waste heat of exhaust gas of ship engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604921A (en) * | 2022-02-22 | 2022-06-10 | 广东南大机器人有限公司 | Seawater desalination system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104944494B (en) | 2017-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201999824U (en) | Sea water desalination system combining solar heat pump and air conditioner | |
| CN101948148B (en) | Energy-saving low-temperature multiple-effect seawater desalting device | |
| CN205307834U (en) | Absorption heat pump sea water desalination device of recovery waste heat | |
| CN102502902B (en) | New multistage flash evaporation seawater desalting system of thermal power plant | |
| CN103043735B (en) | Heat pump type small seawater desalting device | |
| CN104961181A (en) | Air-conditioning and seawater desalination combined production method and system | |
| CN104944492A (en) | Cooperative production method integrating air conditioning and parallel-flow seawater desalination and being usable in summer and winter | |
| CN101648733B (en) | Multi-effect distillation seawater desalinating device of multi-stage type condenser | |
| CN202116342U (en) | Industrial exhaust heat low-temperature multiple-effect seawater desalinization system | |
| CN102267733A (en) | Industrial waste heat low-temperature multi-effect seawater desalting system | |
| CN104944493A (en) | Cooperative production method and system integrating air conditioning and seawater desalination and being usable in summer and winter | |
| CN104961182A (en) | Transcritical air-conditioner and seawater desalination combined production system used in both winter and summer | |
| CN104944494A (en) | Method and system for cogeneration of air conditioner and advection type sea water desalting device | |
| CN201534784U (en) | Horizontal falling film evaporation multi-effect distillation seawater desalination evaporator | |
| CN108706668B (en) | Seawater desalination system with multi-mode heating steam source | |
| CN105110399A (en) | Transcritical air-conditioner and parallel-flow seawater desalination combined production system | |
| CN201901602U (en) | Energy-saving, low-temperature and multiple-effect sea water desalinating device | |
| CN105036226A (en) | Trans-critical air conditioner and advection-type seawater desalination coproduction system for winter and summer | |
| CN201686514U (en) | Multifunctional seawater desalination unit with vacuum cooling system | |
| CN2934211Y (en) | Water desalination low temperature multi-effect device | |
| CN208688027U (en) | A kind of refrigeration heating system coupling gas heating function | |
| CN105000610A (en) | Transcritical air conditioner and seawater desalination co-production system | |
| CN105783332A (en) | Heat pump system capable of achieving green-state community | |
| WO2019242507A1 (en) | Heat and cold energy separation method and apparatus employing sublimation and evaporation in vacuum and application apparatus thereof | |
| CN201395520Y (en) | Exhaust system of multi-effect distilled seawater desalting plant with pre-heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20190604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |