CN103073077A - Multi-process, low-temperature and multiple-effect distilled seawater desalination system - Google Patents
Multi-process, low-temperature and multiple-effect distilled seawater desalination system Download PDFInfo
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- CN103073077A CN103073077A CN2013100079659A CN201310007965A CN103073077A CN 103073077 A CN103073077 A CN 103073077A CN 2013100079659 A CN2013100079659 A CN 2013100079659A CN 201310007965 A CN201310007965 A CN 201310007965A CN 103073077 A CN103073077 A CN 103073077A
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- Y02A20/124—Water desalination
Abstract
The invention relates to the technical field of seawater desalination, in particular to a multi-process, low-temperature and multiple-effect distilled seawater desalination system to improve the adaptability of the multi-process, low-temperature and multiple-effect distilled seawater desalination system. The multi-process, low-temperature and multiple-effect distilled seawater desalination system comprises a condenser, at least two evaporators connected in series, heat pumps connected with the evaporators, at least one seawater pre-heater which is arranged at a feed seawater pipeline connected between a water outlet of the condenser and water inlets of effect evaporators in a first evaporation group, a steam pipeline, a feed seawater pipeline, a concentrated seawater discharge pipeline, a product water discharge pipeline, a seawater delivery pipeline and a seawater countercurrent delivery pipeline connecting a material steam source, a material seawater source, the effect evaporators with the condenser and control valves which are arranged on the pipelines.
Description
Technical field
The present invention relates to field of sea water desalting technology, specially refer to a kind of multipaths low temperature multiple-effect distillation seawater desalination system.
Background technology
The high evaporation temperature that the low temperature multiple-effect distillation sea water desalting technology typically refers to seawater is lower than 70 ℃ desalination techniques, low temperature multiple-effect distillation seawater desalination system is with a series of evaporator series, be input in the vaporizer of series connection with a certain amount of steam and seawater, in vaporizer, steam and seawater carry out heat exchange, make seawater evaporation and condensation repeatedly, thereby obtain being multiple times than the desalination process of the distilled water of quantity of steam.The low temperature multiple-effect distillation sea water system that adopts at present can be divided into by flow process: following current, adverse current and advection flow process.Seawater adds from the high temperature effect, passes through successively each effect, and concentrated seawater is the following current flow process from the discharge of lowest temperature effect; Seawater is imitated from low temperature and is added, and each effect is crossed in reverse flow, and concentrated seawater is countercurrent flow from the discharge of high temperature effect; Seawater adds from each effect respectively, and concentrated seawater is the advection flow process from this effect discharge.
The defective that prior art exists is, what existing low temperature multiple-effect distillation seawater desalination system adopted is single flow process, can't adapt to multiple treatment scheme, when Production Flow Chart need to change, can only reconstruct new low temperature multiple-effect distillation seawater desalination system, adaptability is lower.
Summary of the invention
The object of the present invention is to provide a kind of multipaths low temperature multiple-effect distillation seawater desalination system, in order to improve the adaptability of low temperature multiple-effect distillation seawater desalination system.
To achieve these goals, the invention provides following technical scheme:
A kind of multipaths low temperature multiple-effect distillation seawater desalination system comprises:
The condenser that is communicated with the raw material seawater source;
The evaporation group of connecting with described condenser, evaporation group comprise the vaporizer of at least two effect series connection; Wherein, be positioned at an end of described evaporation group and the vaporizer that is communicated with described condenser inlet mouth is the tail vaporizer; Be positioned at vaporizer headed by the vaporizer of the described evaporation group the other end;
The steam-pipe that is communicated with raw material vapour source and first vaporizer, and be arranged on heat pump on the steam-pipe;
Imitate the charging seawater pipeline that described vaporizer seawater water inlet and described condenser seawater water outlet are communicated with each respectively, be arranged at least one the seawater preheating device on the described charging seawater pipeline, and be arranged on the described charging seawater pipeline and the control valve corresponding with the every 1st effective evaporator seawater water inlet except first vaporizer;
Imitate the product water discharge tube that described vaporizer product water water outlet and described condenser product water water outlet are communicated with each respectively;
Imitate the concentrated seawater discharge tube that described vaporizer seawater water outlet is communicated with each respectively, and be arranged on the control valve on the described concentrated seawater discharge tube of each bar;
Imitate the charging seawater pipeline at described vaporizer seawater water inlet place and the sea water conveying pipelines that the concentrated seawater discharge tube is communicated with except first vaporizer each respectively; And be arranged on two control valves on the described sea water conveying pipelines of each bar;
Imitate described vaporizer seawater water outlet and the seawater adverse current transport pipe that is connected the seawater water inlet connection of imitating the vaporizer that described vaporizer is connected to first vaporizer direction along the tail vaporizer with each respectively, and be arranged on control valve on each bar seawater adverse current transport pipe, and each the bar seawater adverse current transfer lime except the corresponding seawater adverse current of first vaporizer transport pipe all is connected on the sea water conveying pipelines between two control valves corresponding with it.
Imitate described vaporizer seawater water outlet and the seawater adverse current transport pipe that is connected the seawater water inlet connection of imitating the vaporizer that described vaporizer is connected to first vaporizer direction along the tail vaporizer with each respectively, and be arranged on control valve on each bar seawater adverse current transport pipe, and each the bar seawater adverse current transfer lime except the corresponding seawater adverse current of first vaporizer transport pipe all is connected on the sea water conveying pipelines between two control valves corresponding with it.
Preferably, described multipaths low temperature multiple-effect distillation seawater desalination system also comprises: be communicated with described condenser air outlet, be used for the raw material seawater that enters described condenser is carried out degassed vacuum extractor.
Preferably, described vaporizer is tube and shell heat exchanger.
Preferably, described seawater preheating device is steam-water-to-water heat exchanger.
Better, the inlet mouth of described seawater preheating device is communicated with described vaporizer, and the product water water outlet of described seawater preheating device is communicated with described product water discharge tube.
Preferably, described heat pump is the thermo compression injector.
Preferably, described heat pump also is communicated with the air outlet of described tail vaporizer.
Preferably, above-mentioned multipaths low temperature multiple-effect distillation seawater desalination system also comprises: the Mare Frigoris water discharge spout road that is communicated with described condenser seawater water outlet and described charging seawater pipeline.
Preferably, above-mentioned multipaths low temperature multiple-effect distillation seawater desalination system also comprises: be arranged on the middle charge pump on the described seawater adverse current of each bar transport pipe;
Be arranged on the concentrated seawater pump on the described concentrated seawater discharge tube;
Be arranged on the product water pump on the described product water discharge tube;
Be arranged on the sea-water pump of the seawater water inlet of described condenser;
Be arranged on the pan feeding sea-water pump on the described charging seawater pipeline;
Be arranged on the cooling sea water pump on the described Mare Frigoris water discharge spout road.
Preferably, the respectively corresponding fresh water flash tank of each single-effect evaporator and described condenser, each described fresh water flash tank water-in is communicated with the product water outlet of corresponding vaporizer and condenser, and all fresh water flash tanks are by described product water discharge tube series connection.
Preferably, the respectively corresponding concentrated seawater flash tank of each single-effect evaporator and described condenser, and described concentrated seawater flash tank is by described concentrated seawater discharge tube series connection.
Multipaths low temperature multiple-effect distillation seawater desalination system provided by the invention, comprise: each single-effect evaporator of connecting successively, steam-pipe, charging seawater pipeline, concentrated seawater discharge tube, product water discharge tube, sea water conveying pipelines, seawater adverse current transport pipe that each single-effect evaporator and condenser are coupled together, and the control valve on each pipeline that is arranged on.In use, by opening and closing the control valve on each pipeline, the steam that enters into each single-effect evaporator is circulated with different directions with seawater, realized the mixture length that advection flow process, following current flow process, countercurrent flow and the above-mentioned several flow process of low temperature multiple-effect distillation seawater desalination system when processing seawater is arbitrarily made with.Therefore, multipaths low temperature multiple-effect distillation seawater desalination system provided by the invention can adapt to different brine disposal flow processs, has improved the adaptability of low temperature multiple-effect distillation seawater desalination system.
Description of drawings
The structure iron of the multipaths low temperature multiple-effect distillation seawater desalination system that Fig. 1 provides for one embodiment of the invention;
Fig. 2 is the equivalent schematic that multipaths low temperature multiple-effect distillation seawater desalination system of the present invention adopts the following current flow process;
Fig. 3 is the equivalent schematic that multipaths low temperature multiple-effect distillation seawater desalination system of the present invention adopts countercurrent flow;
Fig. 4 is the equivalent schematic that multipaths low temperature multiple-effect distillation seawater desalination system of the present invention adopts the advection flow process;
Fig. 5 is the equivalent schematic that multipaths low temperature multiple-effect distillation seawater desalination system of the present invention adopts following current-advection mixture length.
Reference numeral:
1～5:1 to 5 vaporizer; 6: condenser; 7～11:7 to 11 concentrated seawater flash tank;
12～16:12 to 16 fresh water flash tank; 17～18:17 to 18 seawater preheating device; 19: heat pump;
20: the pan feeding sea-water pump; Charge pump in the middle of the 21～24:21 to 24; 25: cooling sea water pump;
26: sea-water pump; 27: the concentrated seawater pump; 28: the product water pump;
29～53: control valve; 54: the raw material seawater source; 55: the raw material vapour source;
56: the concentrated seawater discharge tube; 57: Mare Frigoris water discharge spout road; 58; The charging seawater pipeline;
59: the product water discharge tube; 60: sea water conveying pipelines; 61: steam-pipe;
62: seawater adverse current transport pipe.
Embodiment
Existing low temperature multiple-effect distillation seawater desalination system flow process is single, just can only adopt fixing flow process that seawater is processed after low temperature multiple-effect distillation seawater desalination system assembles, and can not change the flow process of processing seawater, and the scope of application is smaller.
In view of this, the invention provides a kind of improved technical scheme, connecting pipe by in low temperature multiple-effect distillation seawater desalination system, increasing each single-effect evaporator and at connecting pipe corresponding control valve is set and controls between each single-effect evaporator and the different connections of each single-effect evaporator and charging seawater pipeline, thereby realize after assembling, to adopt as required the following current flow process at the multipaths low temperature multiple-effect distillation seawater desalination system, countercurrent flow, advection flow process or above-mentioned several flow process be the mixture length of mixing arbitrarily, has enlarged the scope of application of low temperature multiple-effect distillation seawater desalination system.
In order to make those skilled in the art better understand technical scheme of the present invention, below in conjunction with Figure of description the embodiment of the invention is described in detail.
As shown in Figure 1, the embodiment of the invention provides a kind of multipaths low temperature multiple-effect distillation seawater desalination system, comprising:
The condenser 6 that is communicated with raw material seawater source 54;
With the evaporation group that described condenser 6 is connected, the evaporation group comprises the vaporizer of at least two effect series connection; Wherein, be positioned at an end of described evaporation group and the vaporizer that is communicated with described condenser 6 inlet mouths is the tail vaporizer; Be positioned at vaporizer headed by the vaporizer of the described evaporation group the other end;
The steam-pipe 61 that is communicated with raw material vapour source 55 and first vaporizer, and be arranged on heat pump 19 on the steam-pipe 61;
Imitate the charging seawater pipeline 58 that described vaporizer seawater water inlet and described condenser 6 seawater water outlets are communicated with each respectively, be arranged at least one the seawater preheating device on the described charging seawater pipeline 58, and be arranged on the described charging seawater pipeline 58 and the control valve corresponding with the every 1st effective evaporator seawater water inlet except first vaporizer;
Imitate the product water discharge tube 59 that described vaporizer product water water outlet and described condenser 6 product water water outlets are communicated with each respectively;
Imitate the concentrated seawater discharge tube 56 that described vaporizer seawater water outlet is communicated with each respectively, and be arranged on the control valve on the described concentrated seawater discharge tube 56 of each bar;
Imitate the charging seawater pipeline 58 at described vaporizer seawater water inlet place and the sea water conveying pipelines 60 that concentrated seawater discharge tube 56 is communicated with except first vaporizer each respectively; And be arranged on two control valves on the described sea water conveying pipelines 60 of each bar;
Imitate described vaporizer seawater water outlet and the seawater adverse current transport pipe 62 that is connected the seawater water inlet connection of imitating the vaporizer that described vaporizer is connected to first vaporizer direction along the tail vaporizer with each respectively, and be arranged on control valve on each bar seawater adverse current transport pipe 62, and each the bar seawater adverse current transfer lime except the corresponding seawater adverse current of first vaporizer transport pipe 62 all is connected on the sea water conveying pipelines 60 between two control valves corresponding with it.
Multipaths low temperature multiple-effect distillation seawater desalination system provided by the invention can adopt according to the concrete condition of production different flow processing seawater, the mixture length that can adopt following current flow process, countercurrent flow, advection flow process and above-mentioned two or more flow process is mixed.Concrete working process is as follows:
(1) following current flow process
Open control valve 33,34,35,36,37,38,39,40,41,46,47,48, close all the other control valves, form the pipeline of the multipaths low temperature multiple-effect distillation seawater desalination system that adopts the following current flow process, as shown in Figure 2, Fig. 2 is the equivalent schematic that multipaths low temperature multiple-effect distillation seawater desalination system of the present invention adopts the following current flow process.In this following current flow process, steam-pipe 61 is connected with the inlet mouth of first vaporizer, condenser 6 is connected with first vaporizer by charging seawater pipeline 58, each single-effect evaporator is connected successively along first vaporizer to the direction of tail vaporizer, the product water water outlet of each single-effect evaporator is connected with product water discharge tube 59 respectively, the concentrated seawater discharge tube 56 that the seawater water outlet of tail vaporizer is communicated with.In the following current flow process, raw material seawater is identical with flowing to of raw material steam.
Utilize the working process of following current flow processing seawater of the multipaths low temperature multiple-effect distillation seawater desalination system that the embodiment of the invention provides as follows:
At first, a raw material seawater part enters preheating in the condenser 6, enters the further preheating of at least one seawater preheating device, and the raw material seawater after the preheating is parallel to be entered in the first vaporizer.The unwanted raw material seawater of another part vaporizer is by refrigerated sea water discharge tube 57 discharge systems.
Raw material steam is through entering in the first vaporizer behind the heat pump 19, with and the seawater that is advanced into first vaporizer carry out heat exchange, the product water water outlet by first vaporizer behind the vapour condensation enters in the product water discharge tube 59.One one of raw material seawater after the heat exchange flashes to the tentatively concentrated seawater of secondary steam and remaining warp and enters respectively in the heat-exchanging tube bundle of the lower 1st effective evaporator that is adjacent and in the shell, seawater after secondary steam and preliminary the concentrating carries out heat exchange again in this vaporizer, seawater is further evaporated, concentrates, and the product water water outlet by this effect after the secondary steam condensation enters in the product water discharge tube 59.The rest may be inferred, and seawater and steam carry out heat exchange in every single-effect evaporator, and seawater is further concentrated, and the product water of formation collects in discharge system in the product water discharge tube 59.The concentrated seawater that is condensed in the tail vaporizer is by concentrated seawater discharge tube 56 discharge systems.Secondary steam part in the tail vaporizer enters into condenser 6 and is used for raw material seawater is carried out preheating, and the product water that forms after the secondary steam condensation enters in the product water discharge tube 59; Another part enters into steam-pipe 61, and again enters into first vaporizer after the raw material vapor mixing, carries out heat exchange with raw material seawater.
(2) countercurrent flow
The working process that the countercurrent flow of the multipaths low temperature multiple-effect distillation seawater desalination system that provides with the embodiment of the invention is processed seawater is as follows:
At first, a raw material seawater part enters preheating in the condenser 6, and the raw material seawater after the preheating enters in the tail vaporizer, and is full of successively each single-effect evaporator.The unwanted raw material seawater of another part vaporizer is by refrigerated sea water discharge tube 57 discharge systems.
Raw material steam enters in the first vaporizer through behind the heat pump 19.Raw material steam and seawater in the first vaporizer carry out heat exchange, are condensed into product water behind the raw material steam heat-exchanging, and the product water water outlet by first vaporizer enters in the product water discharge tube 59.Behind the seawater to make heat exchange of first vaporizer, a part flashes to secondary steam and enters in the heat-exchanging tube bundle of lower 1st effective evaporator, and the seawater in continuation and this single-effect evaporator carries out heat exchange, the rest may be inferred, the secondary steam steam that evaporation of seawater goes out will be full of in each single-effect evaporator, and carry out heat exchange with the seawater that enters in each single-effect evaporator, raw material seawater is evaporated successively along the flow process from the tail vaporizer to first vaporizer, concentrated, finally the seawater water outlet from first vaporizer is discharged into 56 discharges of concentrated seawater discharge tube, and the product water that the secondary steam that raw material steam and seawater produce forms after heat exchange collects in discharge system in the product water discharge tube 59.Secondary steam part after the heat exchange in the tail vaporizer enters into condenser 6 and is used for raw material seawater is carried out preheating, enters into after the secondary steam condensation in the product water discharge tube 59; Another part enters into steam-pipe 61, and again enters into first vaporizer after the raw material vapor mixing, carries out heat exchange with seawater.
(3) advection flow process
Utilize the working process of advection flow processing seawater of the multipaths low temperature multiple-effect distillation seawater desalination system that the embodiment of the invention provides as follows:
At first, a raw material seawater part enters preheating in the condenser 6, and the raw material seawater after the preheating enters in each single-effect evaporator.The unwanted raw material seawater of another part vaporizer is by refrigerated sea water discharge tube 57 discharge systems.
Raw material steam enters in the first vaporizer through behind the heat pump 19, carry out heat exchange with the raw material seawater in the first vaporizer, raw material vapor condensation after the heat exchange becomes product water, product water water outlet by first vaporizer is discharged in the product water discharge tube 59, raw material seawater in the first vaporizer flashes to secondary steam in the heat exchange rear portion, seawater water outlet by first vaporizer after a part is concentrated is discharged in the concentrated seawater discharge tube 56, the secondary steam that raw material seawater forms is full of each single-effect evaporator successively, and carry out heat exchange with the raw material seawater in each single-effect evaporator, the product water water outlet of the product water that forms after the secondary steam heat exchange by each effect is pooled to the interior discharge of product water discharge tube 59 system, secondary steam part in the tail vaporizer enters into condenser 6 and is used for raw material seawater is carried out preheating, and the product water that forms after the secondary steam condensation enters in the product water discharge tube 59; Another part enters into steam-pipe 61, and again enters into first vaporizer after the raw material vapor mixing, carries out heat exchange with raw material seawater.The seawater that is concentrated in each single-effect evaporator enters in the concentrated seawater discharge tube 56 by the seawater water outlet of each single-effect evaporator.
(4) mixture length
There is multiple mixing situation in mixture length, can adopt different mixture lengths according to the different conditions of production.The mixture length of the various combinations such as following current-advection, adverse current-advection, following current-adverse current.As: open control valve 29,30,31,32,33,34,35,36,37,38,39,40,41,46,47,48,50,51,52,53, close all the other control valves, form the mixture length of following current-advection; Open control valve 29,30,31,32,33,34,35,36,37,39,40,41,42,43,44,45,50,51,52,53, close all the other control valves, form the mixture length of adverse current-advection.
Take the mixture length of following current-advection as example, as shown in Figure 5, utilize the mixture length of the multipaths low temperature multiple-effect distillation seawater desalination system that the embodiment of the invention provides to process the working process of seawater as follows:
At first, raw material seawater enters preheating in the condenser 6, and the raw material seawater after the preheating enters in each single-effect evaporator.
Raw material steam enters in the first vaporizer through behind the heat pump 19.And carry out heat exchange with the raw material seawater in the first vaporizer, raw material vapor condensation after the heat exchange becomes product water to pass through product water discharge tube 59 discharge systems, seawater part after the heat exchange flashes to secondary steam, the remaining seawater that is concentrated is by concentrated seawater discharge tube 56 discharge systems, the secondary steam that produces enters into lower 1st effective evaporator, and carries out heat exchange with seawater in this single-effect evaporator.The seawater that enters into each single-effect evaporator moves along two pipelines, seawater after a part is evaporated, concentrated enters in the concentrated seawater discharge tube 56 by the seawater water outlet of this single-effect evaporator, another part evaporation, the seawater after concentrated enter into lower 1st effective evaporator, and continue to carry out heat exchange with the secondary steam that enters in this single-effect evaporator after the sea water mixing of this single-effect evaporator.The seawater that enters in the concentrated seawater discharge tube 56 is directly discharged.The product water that the product water that each effect produces and condenser 6 produce is by product water discharge tube 59 discharge systems.
Therefore, multipaths low temperature multiple-effect distillation seawater desalination system of the present invention can adopt different brine disposal flow processs according to the different condition of production, has improved the adaptability that the multipaths low temperature multiple-effect distillation seawater desalination system satisfies different need of productions.
The below is take quintuple effect evaporator and two seawater preheating devices as example, the multipaths low temperature multiple-effect distillation seawater desalination system that the embodiment of the invention of further explaining provides.
Continuation is referring to Fig. 1, the multipaths low temperature multiple-effect distillation seawater desalination system comprises: vaporizer 1, vaporizer 2, vaporizer 3, vaporizer 4, the vaporizer 5 of connecting successively, vaporizer headed by the vaporizer 1 wherein, vaporizer 5 is the tail vaporizer, vaporizer is tube and shell heat exchanger in the present embodiment; The condenser 6 that is communicated with raw material seawater source 54; The steam-pipe 61 that is communicated with raw material vapour source 55 and first vaporizer, and be arranged on heat pump 19 on the steam-pipe 61, heat pump 19 also is communicated with the air outlet of tail vaporizer; The charging seawater pipeline 58 that is communicated with each single-effect evaporator seawater water inlet and condenser 6 seawater water outlets, be arranged on seawater preheating device 17 and seawater preheating device 18 on the charging seawater pipeline 58 that is communicated with condenser 6 and each single-effect evaporator, seawater preheating device 17 and seawater preheating device 18 are steam-water-to-water heat exchanger; The inlet mouth of steam-water-to-water heat exchanger is communicated with steam-pipe 61, and the product water water outlet of steam-water-to-water heat exchanger is communicated with product water discharge tube 59.The concentrated seawater discharge tube 56 that is communicated with each single-effect evaporator seawater water outlet, the Mare Frigoris water discharge spout road 57 that is communicated with described condenser 6 seawater water outlets and described charging seawater pipeline 58, the product water discharge tube 59 that is communicated with each single-effect evaporator product water water outlet; The sea water conveying pipelines 60 that the seawater water outlet of each single-effect evaporator is communicated with seawater water inlet along first vaporizer to the adjacent vaporizer of tail vaporizer direction; The seawater adverse current transport pipe 62 that the seawater water outlet of each single-effect evaporator is communicated with the seawater water inlet of the vaporizer adjacent along the tail vaporizer to first vaporizer direction, and be separately positioned on each control valve on steam-pipe 61, charging seawater pipeline 58, concentrated seawater discharge tube 56, product water discharge tube 59, sea water conveying pipelines 60, the seawater adverse current transport pipe 62.
The principle of work of multipaths low temperature multiple-effect distillation seawater desalination system is as follows in above-described embodiment, by condenser 6 raw material seawater is transported in each single-effect evaporator, and carry out heat exchange with steam in each single-effect evaporator, make the seawater that enters in each single-effect evaporator evaporate, concentrate, the product water that obtains is by product water discharge tube 59 discharge systems, and the seawater after evaporating, concentrating is by concentrated seawater discharge tube 59 discharge systems.According to the different situations of actual production, multipaths low temperature multiple-effect distillation seawater desalination system of the present invention can provide different processing seawater flow processs, such as the mixture length of following current flow process, countercurrent flow, advection flow process and above-mentioned several flow processs.In order to understand more easily the technical program, the below describes as an example of the principle of work of the following current flow process of multipaths low temperature multiple-effect distillation seawater desalination system of the present invention example.
Open control valve 33,34,35,36,37,38,39,40,41,46,47,48, close all the other control valves, as shown in Figure 2, part concentrated seawater discharge tube 56 and sea water conveying pipelines 60 are with the direction series connection of each single-effect evaporator along first vaporizer to the tail vaporizer.
Raw material seawater enters into charging seawater pipeline 58 by condenser 6, and a part is discharged through Mare Frigoris water discharge spout road 57, and a part also heats through seawater preheating device 17 and seawater preheating device 18, and the raw material seawater after the heating enters in the shell of vaporizer 1.Simultaneously, raw material steam enters in the heat-exchanging tube bundle of vaporizer 1 through behind the heat pump 19, with and the raw material seawater that is advanced in vaporizer 1 shell carry out heat exchange, the raw material vapor condensation after the heat exchange becomes product water, the product water water outlet by vaporizer 1 enters in the product water discharge tube 59.Raw material seawater part after the heat exchange is evaporated into secondary steam, a part is concentrated, the secondary steam that forms and concentrated seawater enter into respectively in the heat-exchanging tube bundle of vaporizer 2 and in the shell, and in vaporizer 2, again carry out heat exchange, seawater is further evaporated, concentrates, and the product water of generation enters in the product water discharge tube 59 by the product water water outlet of vaporizer 2.Seawater and secondary steam carry out heat exchange successively in vaporizer 3, vaporizer 4 and vaporizer 5, seawater is further concentrated.The product water that forms collects in discharge system in the product water discharge tube 59, and the concentrated seawater that is condensed in vaporizer 5 is by concentrated seawater discharge tube 56 discharge systems.Secondary steam part in the vaporizer 5 enters into condenser 6 and is used for raw material seawater is carried out preheating, and the product water that forms after the secondary steam condensation enters in the product water discharge tube 59; Another part secondary steam enters into steam-pipe 61, and again enters into vaporizer 1 after the raw material vapor mixing, carries out heat exchange with raw material seawater.
Except above-mentioned following current flow process, the multipaths low temperature multiple-effect distillation seawater desalination system that this embodiment provides can also be selected other different flow processing seawater, as: advection flow process, countercurrent flow and various mixture length.
Preferably, the multipaths low temperature multiple-effect distillation seawater desalination system also comprises: be communicated with described condenser 6 air outlets, be used for the raw material seawater that enters described condenser 6 is carried out degassed vacuum extractor (not shown in FIG.).Vacuum extractor can be extracted non-condensable gases in the seawater out, and the non-condensable gases that prevents from being blended in the raw material seawater causes damage to the equipment of multipaths low temperature multiple-effect distillation seawater desalination system.
Preferably, the multipaths low temperature multiple-effect distillation seawater desalination system also comprises: be arranged on the middle charge pump on the described seawater adverse current of each bar transport pipe 62, except first vaporizer, each single-effect evaporator is a corresponding middle charge pump respectively, vaporizer 2 corresponding middle charge pumps 24, vaporizer 3 corresponding middle charge pumps 23, charge pump 22 in the middle of vaporizer 4 correspondences, vaporizer 5 corresponding middle charge pumps 21, charge pump provides transmitting power for seawater adverse current transfer lime to interior seawater in the middle of each; Be arranged on the concentrated seawater pump 27 on the described concentrated seawater discharge tube 56; Be arranged on the product water pump 28 on the described product water discharge tube 59; Be arranged on the sea-water pump 26 of the seawater water inlet of described condenser 6; Be arranged on the pan feeding sea-water pump 20 on the described charging seawater pipeline 58; Be arranged on the cooling sea water pump 25 on the described Mare Frigoris water discharge spout road 57.Set up the pump of obstructed purposes at each pipeline, can be convenient to the circulation of the liquid in the pipeline, improve the working efficiency of native system.
Continuation is referring to Fig. 1, in order to take full advantage of steam heat, in the above-mentioned multipaths low temperature multiple-effect distillation seawater desalination system, the respectively corresponding fresh water flash tank of each single-effect evaporator, each described fresh water flash tank water-in is communicated with the product water outlet of corresponding vaporizer, and all fresh water flash tanks are by described product water discharge tube 59 series connection, the vaporizer that described fresh water flash tank air outlet is adjacent with corresponding vaporizer or the inlet mouth of condenser 6 are communicated with, and all fresh water flash tanks are connected successively by described product water discharge tube.In the present embodiment, fresh water flash tank 12 is communicated with corresponding vaporizer 1, fresh water flash tank 13 is communicated with corresponding vaporizer 2, fresh water flash tank 14 is communicated with corresponding vaporizer 3, fresh water flash tank 15 is communicated with corresponding vaporizer 4, fresh water flash tank 16 is communicated with corresponding vaporizer 5, and above-mentioned fresh water flash tank is by 59 series connection of product water discharge tube.The water of condensation that produces in vaporizer 1 enters fresh water flash tank 12 as product water and carries out flash distillation, and flash steam enters vaporizer 2; Finish mixing evaporator 2 produces after the flash distillation product water and enter fresh water flash tank 13 and carry out flash distillation, flash steam enters vaporizer 3, the like, after finally all product waters are pooled to flash tank 16, promote and discharge system as product water by product water pump 28.
Continuation is referring to Fig. 1, in order to take full advantage of steam heat, in the above-mentioned multipaths low temperature multiple-effect distillation seawater desalination system, each single-effect evaporator and described condenser 6 respectively corresponding concentrated seawater flash tanks, and described concentrated seawater flash tank is by described concentrated seawater discharge tube 56 series connection.And the vaporizer that each described concentrated seawater flash tank air outlet is adjacent with corresponding vaporizer or the inlet mouth of condenser 6 are communicated with.In the present embodiment, concentrated seawater flash tank 7 is communicated with corresponding vaporizer 1, concentrated seawater flash tank 8 is communicated with corresponding vaporizer 2, concentrated seawater flash tank 9 is communicated with corresponding vaporizer 3, concentrated seawater flash tank 10 is communicated with corresponding vaporizer 4, concentrated seawater flash tank 11 is communicated with corresponding vaporizer 5, and above-mentioned concentrated seawater flash tank is by 56 series connection of concentrated seawater discharge tube.The concentrated seawater that produces in vaporizer 1 enters concentrated seawater flash tank 7 and carries out flash distillation, and flash steam enters vaporizer 2; Finish mixing evaporator 2 produces after the flash distillation concentrated seawater and enter concentrated seawater flash tank 8 and carry out flash distillation, flash steam enters vaporizer 3, the like, after finally all concentrated seawaters are pooled to flash tank 11, promote and discharge system as concentrated seawater by concentrated seawater pump 27.
In sum, utilize multipaths low temperature multiple-effect distillation seawater desalination system provided by the invention, when seawater being desalinated processing, can select different processing seawater flow processs by the control valve on the pipeline.Simultaneously, utilize multipaths low temperature multiple-effect distillation seawater desalination system provided by the invention to improve and to access the higher concentrated seawater of concentration; Therefore, adopt multipaths low temperature multiple-effect distillation seawater desalination system provided by the invention, improved the seawater enrichment factor, improved the utilization ratio of steam energy, reduced simultaneously the fouling of seawater in each single-effect evaporator shell.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. a multipaths low temperature multiple-effect distillation seawater desalination system is characterized in that, comprising:
The condenser that is communicated with the raw material seawater source;
The evaporation group of connecting with described condenser, evaporation group comprise the vaporizer of at least two effect series connection; Wherein, be positioned at an end of described evaporation group and the vaporizer that is communicated with described condenser inlet mouth is the tail vaporizer; Be positioned at vaporizer headed by the vaporizer of the described evaporation group the other end;
The steam-pipe that is communicated with raw material vapour source and first vaporizer, and be arranged on heat pump on the steam-pipe;
Imitate the charging seawater pipeline that described vaporizer seawater water inlet and described condenser seawater water outlet are communicated with each respectively, be arranged at least one the seawater preheating device on the described charging seawater pipeline, and be arranged on the described charging seawater pipeline and the control valve corresponding with the every 1st effective evaporator seawater water inlet except first vaporizer;
Imitate the product water discharge tube that described vaporizer product water water outlet and described condenser product water water outlet are communicated with each respectively;
Imitate the concentrated seawater discharge tube that described vaporizer seawater water outlet is communicated with each respectively, and be arranged on the control valve on the described concentrated seawater discharge tube of each bar;
Imitate the charging seawater pipeline at described vaporizer seawater water inlet place and the sea water conveying pipelines that the concentrated seawater discharge tube is communicated with except first vaporizer each respectively; And be arranged on two control valves on the described sea water conveying pipelines of each bar;
Imitate described vaporizer seawater water outlet and the seawater adverse current transport pipe that is connected the seawater water inlet connection of imitating the vaporizer that described vaporizer is connected to first vaporizer direction along the tail vaporizer with each respectively, and be arranged on control valve on each bar seawater adverse current transport pipe, and each the bar seawater adverse current transfer lime except the corresponding seawater adverse current of first vaporizer transport pipe all is connected on the sea water conveying pipelines between two control valves corresponding with it.
2. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 1 is characterized in that, also comprises: be communicated with described condenser air outlet, be used for the raw material seawater that enters described condenser is carried out degassed vacuum extractor.
3. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 1 is characterized in that, described vaporizer is tube and shell heat exchanger.
4. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 1 is characterized in that, described seawater preheating device is steam-water-to-water heat exchanger.
5. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 1 is characterized in that, the inlet mouth of described seawater preheating device is communicated with described vaporizer, and the product water water outlet of described seawater preheating device is communicated with described product water discharge tube.
6. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 1 is characterized in that, described heat pump is the thermo compression injector.
7. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 6 is characterized in that, described heat pump also is communicated with the air outlet of described tail vaporizer.
8. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 1 is characterized in that, also comprises: the Mare Frigoris water discharge spout road that is communicated with described condenser seawater water outlet and described charging seawater pipeline.
9. such as each described multipaths low temperature multiple-effect distillation seawater desalination system of claim 1 ~ 8, it is characterized in that, also comprise: be arranged on the middle charge pump on the described seawater adverse current of each bar transport pipe;
Be arranged on the concentrated seawater pump on the described concentrated seawater discharge tube;
Be arranged on the product water pump on the described product water discharge tube;
Be arranged on the sea-water pump of the seawater water inlet of described condenser;
Be arranged on the pan feeding sea-water pump on the described charging seawater pipeline;
Be arranged on the cooling sea water pump on the described Mare Frigoris water discharge spout road.
10. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 9, it is characterized in that, the respectively corresponding fresh water flash tank of each single-effect evaporator and described condenser, each described fresh water flash tank water-in is communicated with the product water outlet of corresponding vaporizer and condenser, and all fresh water flash tanks are by described product water discharge tube series connection.
11. multipaths low temperature multiple-effect distillation seawater desalination system as claimed in claim 10 is characterized in that, the respectively corresponding concentrated seawater flash tank of each single-effect evaporator and described condenser, and described concentrated seawater flash tank is by described concentrated seawater discharge tube series connection.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860363A (en) * | 2014-02-26 | 2015-08-26 | 上海鸿宝医疗器械有限公司 | Distilled water preparation technology and equipment |
| CN105692750A (en) * | 2016-03-04 | 2016-06-22 | 华北电力大学 | Multiple-effect distillation seawater desalination system adopting power station waste heat |
| CN105712423A (en) * | 2016-03-04 | 2016-06-29 | 华北电力大学 | MED-TVC seawater desalination combination system by means of power station waste heat |
| CN110624264A (en) * | 2019-09-24 | 2019-12-31 | 四川同庆南风有限责任公司 | Device for slowing down scale formation of anhydrous sodium sulphate evaporation system |
| CN112759011A (en) * | 2020-12-31 | 2021-05-07 | 中谷宏(海南)实业有限公司 | Low-temperature evaporation seawater desalination device without vacuum pump |
| CN113880172A (en) * | 2021-09-23 | 2022-01-04 | 华电水务工程有限公司 | Low-temperature multi-effect evaporation seawater desalination energy utilization system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006263542A (en) * | 2005-03-23 | 2006-10-05 | Kurita Water Ind Ltd | Water making apparatus and water making method |
| CN201325879Y (en) * | 2008-02-29 | 2009-10-14 | 北京博奇电力科技有限公司 | Shell-and-tube heat exchanger type liquid-ammonia evaporator |
| CN201413058Y (en) * | 2009-06-09 | 2010-02-24 | 南京高捷轻工设备有限公司 | Plate-type evaporator |
-
2013
- 2013-01-09 CN CN201310007965.9A patent/CN103073077B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006263542A (en) * | 2005-03-23 | 2006-10-05 | Kurita Water Ind Ltd | Water making apparatus and water making method |
| CN201325879Y (en) * | 2008-02-29 | 2009-10-14 | 北京博奇电力科技有限公司 | Shell-and-tube heat exchanger type liquid-ammonia evaporator |
| CN201413058Y (en) * | 2009-06-09 | 2010-02-24 | 南京高捷轻工设备有限公司 | Plate-type evaporator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860363A (en) * | 2014-02-26 | 2015-08-26 | 上海鸿宝医疗器械有限公司 | Distilled water preparation technology and equipment |
| CN105692750A (en) * | 2016-03-04 | 2016-06-22 | 华北电力大学 | Multiple-effect distillation seawater desalination system adopting power station waste heat |
| CN105712423A (en) * | 2016-03-04 | 2016-06-29 | 华北电力大学 | MED-TVC seawater desalination combination system by means of power station waste heat |
| CN105692750B (en) * | 2016-03-04 | 2018-07-31 | 华北电力大学 | A kind of multiple-effect distillation seawater desalination system using surplus heat of power plant |
| CN105712423B (en) * | 2016-03-04 | 2018-07-31 | 华北电力大学 | Utilize the MED-TVC seawater desalination combined systems of surplus heat of power plant |
| CN110624264A (en) * | 2019-09-24 | 2019-12-31 | 四川同庆南风有限责任公司 | Device for slowing down scale formation of anhydrous sodium sulphate evaporation system |
| CN112759011A (en) * | 2020-12-31 | 2021-05-07 | 中谷宏(海南)实业有限公司 | Low-temperature evaporation seawater desalination device without vacuum pump |
| CN113880172A (en) * | 2021-09-23 | 2022-01-04 | 华电水务工程有限公司 | Low-temperature multi-effect evaporation seawater desalination energy utilization system and method |
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| CN103073077B (en) | 2014-04-23 |
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