CN206232419U - A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device - Google Patents
A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device Download PDFInfo
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- CN206232419U CN206232419U CN201620908187.XU CN201620908187U CN206232419U CN 206232419 U CN206232419 U CN 206232419U CN 201620908187 U CN201620908187 U CN 201620908187U CN 206232419 U CN206232419 U CN 206232419U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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Abstract
A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device, including steam generator, multi-effect evaporator and condenser；The steam generator, the multi-effect evaporator and the condenser three are integrally disposed successively, form integrated apparatus；The water inlet connection high-temperature-hot-water pipeline of the steam generator, the steam generator is produced and starts steam；Described startup steam enters the multi-effect evaporator by pipeline, is evaporated and condenses, and produces steam and product water；The end steam of the multi-effect evaporator is condensed into product water into the condenser.It is one that the utility model steam generator, multi-effect evaporator and condenser close three, and integrated to greatest extent, facility compact, good appearance, floor space are small；Pipeline is saved, resistance is damaged reduces, heat utilization ratio is high；Safeguard and maintenance is convenient.
Description
Technical field
The utility model is related to low-temperature multiple-effect seawater desalination technical field, many more particularly, to a kind of efficient integrated low temperature
Effect distillation seawater desalinating device.
Background technology
Desalinization belongs to a kind of increment technique of fresh water, and more common desalination process is low temperature multiple-effect distillation skill
Art, the desalinization that the technology is carried out below 70 DEG C, fouling is serious in the case of a high temperature to solve the problems, such as main equipment.
The characteristics of technology is that a series of Falling Film Evaporator of Horizontal Tube are together in series, and is input into a certain amount of steam and passed through
Multiple evaporation and condensation, so as to obtain distilled water.
The mode that steam of the prior art is obtained mainly has following several：
(1) directly the high-quality steam of high pressure is passed through in low temperature multiple-effect distillation device as heat source, carries out seawater
Desalination.The method system air consumption is big, heat utilization efficiency is low.
(2) low-pressure steam in mesohigh steam and the low temperature multiple-effect distillation device of backflow is mixed using hot pressing compression apparatus
Desalinization is carried out after decompression.But due to the limitation of compressed machine, the capacity of unitary device is small, therefore is not suitable for large industrialized
Using.
(3) flashed in flash tank using hot water and entered in multi-effect evaporator by pipeline after producing steam, carry out low temperature
Multi-effect sea water desalting.Need to be depressured for thermal source by the method that flash distillation obtains steam, and backwater then needs supercharging, and boost in pressure is larger；And dodge
Steaming pot is separated with evaporator needs pipeline to be connected, and high cost, occupation of land are big, and the waste heat flow with hot water as carrier is huge, power consumption
Also it is more.
Using the steam that industrial and mining enterprises are ready-made more than existing low temperature multiple-effect distillation technology, pipeline connection is multiple between multiple equipment
It is miscellaneous, to safeguard and maintenance trouble, equipment entirety floor space is big, and energy consumption consumption is big.
Utility model content
The purpose of this utility model is to design a kind of efficient integrated low temperature multiple-effect distillation sea water desalting device, in solution
State problem.
To achieve these goals, the technical solution adopted in the utility model is as follows：
A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device, including steam generator, multi-effect evaporator and solidifying
Vapour device；The steam generator, the multi-effect evaporator and the condenser three are integrally disposed successively, form one and disguise
Put；
The water inlet connection high-temperature-hot-water pipeline of the steam generator, the steam generator is produced and starts steam；Institute
The startup steam stated enters the multi-effect evaporator by pipeline, is evaporated and condenses, and produces steam and product water；It is described many
The end steam for imitating evaporator is condensed into product water into the condenser.
Further, the steam generator includes heat exchanger tube and spray equipment, the water inlet connection institute of the heat exchanger tube
State high-temperature-hot-water pipeline；
The multi-effect evaporator include the 1st effect evaporator, the 2nd effect evaporator ... and the n-th effect evaporator, wherein n >=2, institute
State multi-effect evaporator and be divided into preceding m effect evaporators and rear (n-m) effect evaporator, wherein m >=1；It is each in the multi-effect evaporator
Effect evaporator includes heat exchanger tube and spray equipment, and the water inlet of the spray equipment of rear (n-m) the effect evaporator is material seawater,
The water inlet of the spray equipment of the preceding m effects evaporator is the strong brine produced in rear (n-m) the effect evaporator；
It is described to start the heat exchanger tube that steam is entered in the described 1st effect evaporator by pipeline, with the described 1st effect evaporation
After the seawater of the spray equipment spray in device is exchanged heat, product water is condensed into, the product water is sent out into the steam
Spray equipment in raw device；It is described 1st effect evaporator in spray equipment spray water by after heat absorption formed effect between steam and
Strong brine；Steam enters the heat exchanger tube of lower 1st effective evaporator between the effect；And the rest may be inferred, until the n-th effect evaporator；N-th effect
The steam produced in evaporator after condenser condensation by forming product water.
Further, the strong brine that the preceding m effects evaporator is produced is communicated to strong brine flash tank generation product water and surpasses
Strong brine, the super strong brine is discharged through strong brine pump, and (n-m) imitates evaporator after the product water enters.
Further, from (m+1) effect evaporator, the strong brine of formation is entered step by step by strong brine pipe between the effect
Lower 1st effective evaporator, until the n-th effect evaporator；After the strong brine that n-th effect evaporator converges is promoted to preheater through middle water pump
Into in the spray equipment of preceding m effect evaporators.
Further, the water of raw material seawater water inlet pipe is by after condenser heating, a part of seawater is cold by seawater
But water outlet pipe discharge；Another part after preheated device preheating, the rear (n- is entered in advection spray mode as material water
M) spray equipment of evaporator is imitated.
Further, the hot water in the high-temperature-hot-water pipeline is converted into middle low-temperature water heating again by the steam generator
By being discharged after the preheater.
Further, the high-temperature-hot-water comes from the unemployed waste heat of industrial and mining enterprises, the middle low-temperature water heating preheating institute
Low-temperature water heating return industrial and mining enterprises are converted to after stating material water.
Further, also including stream-jet ejector, the stream-jet ejector respectively with the multi-effect evaporator and described solidifying
The connection of vapour device is vacuumized.
Further, the multi-effect evaporator spray equipment according to various heat exchange intensity it is heterogeneous arrangement shower nozzle quantity and
Away from making heat transfer intensity consistent with surface spraying density altitude.
Further, also including scaler system, the scaler system leads to in the heat exchanger tube of the steam generator
Enter steam, and to spraying material seawater outside pipe, by the way that pipe external and internal pressure is poor, temperature difference and spray effect, incrustation scale is removed.
The utility model proposes a kind of efficient integrated low temperature multiple-effect distillation sea water desalting device, steam is realized to greatest extent
The integration of generator, multi-effect evaporator and condenser, saves occupation area of equipment, safeguards simple and convenient.The device is passed directly into
Hot water can drive desalinization, and heat utilization efficiency is high, and producing water ratio and cocnentration factor are high, it is adaptable to most of low and high temperature thermal water resource
Abundant industrial and mining enterprises.The cost that the technology can not only reduce in industrial and mining enterprises' production process is again that enterprise realizes energy-saving and emission-reduction
One important measure.
Beneficial effect evaporator fruit of the present utility model can be summarized as follows：
1st, the utility model closes low-temperature multiple-effect seawater desalination main equipment steam generator, multi-effect evaporator and condenser
Three is one, the system integration to greatest extent.Facility compact, good appearance, floor space are small；Pipeline is saved, resistance is damaged reduces, heat profit
It is high with rate；Safeguard and maintenance is convenient.
2nd, equipment is not required to pickling descaling, using innovative approach scale removal, without consuming acid solution, waste liquid will not be produced to cause secondary
Pollution.
3rd, the utility model uses flat adverse current feeding mode, is flowed back to substitute partial material seawater with part salt solution, passes through
Rational design optimization, improves the producing water ratio and energy utilization rate of whole system.
4th, the utility model producing water ratio is high, cocnentration factor it is high (>2), system little power consumption, heat utilization ratio is high, and cost significantly drops
It is low, solve the problems, such as that existing low-temperature multiple-effect seawater desalination technique water producing cost is high.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model.
Fig. 2 is external structure schematic diagram of the present utility model.
Label declaration：
Steam generator 1, multi-effect evaporator 2, condenser 3, high-temperature-hot-water water inlet pipe 4, first evaporator product water water outlet
Product water tube 9, raw material between strong brine pipe 8, effect between pipe 5, low-temperature water heating return pipe 6, steam generator product water water inlet pipe 7, effect
Seawater water inlet pipe 10, seawater cooling water outlet pipe 11, evaporator seawater water inlet pipe 12, low pressure steam pipe 13, stream-jet ejector
14th, spray equipment 15, steam generator circulating pump 16, finished product water pump 17, middle water pump 18, strong brine flash tank 19, strong brine
Pump 20, preheater 21.
Specific embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model is solved become more apparent, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example is only used to explain the utility model, is not used to limit the utility model.
A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device as depicted in figs. 1 and 2, including steam generator
1st, multi-effect evaporator 2, the three main bodies equipment of condenser 3, aid in also including preheater 21, stream-jet ejector 14 and scaler system etc.
Equipment.Steam generator 1, multi-effect evaporator 2 and the three of condenser 3 are efficiently integrated, form integrated apparatus.Saving equipment is taken up an area
Area, safeguards simple and convenient, directly can drive desalinization using hot water, and heat utilization efficiency is high, and producing water ratio and cocnentration factor are high.
High-temperature-hot-water water inlet pipe 4 is connected with the water inlet of the steam generator 1, and the steam generator 1 produces startup
Steam；Described startup steam enters multi-effect evaporator 2 by pipeline, is evaporated and condenses, and produces steam and product water；End
The steam that effect evaporator is produced enters the condenser 3 by pipeline, is condensed into product water；The stream-jet ejector 14 respectively with
The multi-effect evaporator 2 and the connection of the condenser 3 are vacuumized；
The multi-effect evaporator 2 include the 1st effect evaporator, the 2nd effect evaporator ... and the n-th effect evaporator, wherein n >=2,
2 points of the multi-effect evaporator is preceding m effect evaporators and rear (n-m) effect evaporator, wherein m >=1.
The steam generator 1 includes heat exchanger tube and spray equipment 15, and product water is lifted through steam generator circulating pump 16
To steam generator spray equipment 15, high-temperature-hot-water is with product water by after heat exchange, producing and starting steam.
Wherein high-temperature-hot-water water inlet pipe 4 is connected by flange with the water inlet of hot water of steam generator 1, described steam generation
The hot water outlet flange of device 1 is connected with low-temperature water heating return pipe 6, and the product water of described first evaporator is circulated through steam generator
Pump 16 is promoted to steam generator charging aperture and enters spray equipment 15.Hot water steams with product water by after heat exchange, producing to start
Vapour.
It is described per 1st effective evaporator include heat exchanger tube, spray equipment 15, effect between strong brine pipe 8 and effect between product water tube 9；
The product water that the 1st effect evaporator is produced is discharged by the first evaporator product water outlet pipe 5, is circulated through steam generator
Pump 16 is lifted into the steam generator 1, and the product water produced from the 2nd effect evaporator arranges downward 1st effective evaporator step by step, directly
To last evaporator；The product water that n-th effect evaporator converges is lifted through finished product water pump 17 discharges；By spray equipment 15 respectively to
Evaporator sprays preheated material seawater ((n-m) effect evaporator afterwards) and salt solution (preceding m imitates evaporator).Wherein middle water pump 18
The salt solution that last evaporator converges is promoted to preceding m effect evaporators spray equipment 15.Evaporator is changed using a series of horizontal falling liquid films
The outer material water of steam-heating pipe in heat pipe, and its evaporation is formed steam.It is connected between steam connection tube, effect between each effect evaporator
Product water tube 9 between strong brine pipe 8 and effect.Steam enters the heat exchanger tube of lower 1st effective evaporator, is condensed into product water and is collected, preceding
M effect evaporator salt solution further reclaims product water by repeatedly flash distillation, improves producing water ratio and cocnentration factor, the dense salt for ultimately forming
Water drains into saltern and evaporates brine through strong brine pump 20.By the evaporation and condensation that repeat, temperature, the pressure per 1st effective evaporator are than upper
1st effective evaporator is lower slightly, so as to produce substantial amounts of distilled water by the heating steam of low temperature and pressure.Not only increase system
Producing water ratio, the heat for also making full use of salt solution to carry improves the energy utilization rate of whole system.
From (m+1) effect evaporator, the strong brine of formation enters next effect and steams step by step by strong brine pipe 8 between the effect
Hair device, until the n-th effect evaporator；The strong brine that n-th effect evaporator converges enters after being promoted to preheater 21 through middle water pump 18
In the spray equipment 15 of preceding m effects evaporator；The strong brine that 1st effect evaporator is formed is entered down step by step by strong brine pipe 8 between effect
1st effective evaporator, until m imitates evaporator, the strong brine that m effect evaporators converge enters strong brine flash tank 19 and generates finished product
Water and strong brine, the strong brine are discharged through strong brine pump 20, and (n-m) imitates evaporator after the product water enters.Preceding m is imitated
Discharged after strong brine flash distillation, further improve producing water ratio.
Refrigerated sea water enters the condenser 3 by raw material seawater water inlet pipe 10, and seawater condensing last evaporator steam is added
After heat, a part of seawater is discharged by seawater cooling water outlet pipe 11, and another part is as material water through evaporator seawater water inlet pipe
After 12 enter the preheating of preheater 21, the spray equipment 15 that rear (n-m) imitates evaporator is entered in advection spray mode.End effect is steamed
The steam that hair device is produced all is condensed into product water in condenser 3, and the arrangement height of condenser 3 is slightly above evaporator, condensate
Also from last evaporator is flow to, product water is delivered to plant area and supplies production and application by finished product water pump 17.Condenser 3 is while pre- with passing through
Treatment seawaterline connection, by the condensation of seawater by last evaporator steam condensation into product water while, seawater is able to
Heating, (n-m) imitates evaporator after fraction enters as material seawater, and major part enters sea.
The high-temperature-hot-water is converted into middle low-temperature water heating by the steam generator 1, and the middle low-temperature water heating is by low
Warm water's return pipe 6 is connected with the preheater 21, is discharged as after the thermal source of the preheater 21；The high-temperature-hot-water comes from
The unemployed waste heat of industrial and mining enterprises, the middle low-temperature water heating is converted to low-temperature water heating return industrial and mineral enterprise after preheating the material water
Industry.Described preheater 21 will enter the spray equipment 15 of partial vaporiser respectively after partial material seawater and salt solution heating.In advance
The waste-heat material water of low-temperature water heating, reduces the degree of supercooling of material water in the use of hot device 21, improves steam production.
The stream-jet ejector is connected and vacuumizes with the multi-effect evaporator and the condenser respectively.It is described to penetrate vapour pumping
Device 14 is connected with the described 1st effect evaporator and the condenser 3 respectively, and low pressure steam enters incidence by low pressure steam pipe 13
Vapour air ejector 14 is vacuumized.
By the use of the low pressure steam of industrial and mining enterprises as auxiliary steam source, by stream-jet ejector 14, in desalinization main body
Most hot junction and most cold end in device, the air and non-condensing gas that will be leaked into evaporator extract seawater desalination evaporators out, keep away
Exempt from evaporator pressure raising, temperature departure design conditions, heat exchange efficiency decline, water processed does not reach the unfavorable phenomenon such as design load and goes out
It is existing.The low pressure steam that the vapour source of stream-jet ejector 14 is provided for industrial and mining enterprises, does not consume electric energy, movement-less part, reliable operation,
Equipment investment is low.
The spray equipment 15 of the multi-effect evaporator 2 makes according to heterogeneous arrangement shower nozzle quantity and the spacing of various heat exchange intensity
Heat transfer intensity is consistent with surface spraying density altitude.Described scaler system is forwardly to lead to steam in the heat exchanger tube,
The outer spray material seawater of pipe, by the way that pipe external and internal pressure is poor, temperature difference and spray are acted on, incrustation scale is removed, and reducing high power concentration is
Easily there is the risk that salt is analysed in fouling with local over-concentration in system.Special scale removal mode, using exclusive " steam+pipe is outer in pipe sprays "
Combination technique replaces pickling, has both saved acid solution cost, and the secondary pollution that waste liquid is caused is avoided again.
The utility model rationally design and optimization, make water generation ratio and the concentration of whole low temperature multiple-effect distillation sea water desalting device
Than big, wherein, cocnentration factor ＞ 2, so as to ensure to be reduced in the case where finished product water is certain the extracted amount of seawater.At the same time,
Under conditions of highly enriched ratio, remain to effectively reduce fouling risk, extension scale removal interval.
The utility model is described in detail above by specific and preferred embodiment, but those skilled in the art should
This understands that the utility model is not limited to embodiment described above, all within spirit of the present utility model and principle, is made
Any modification, equivalent etc., should be included within protection domain of the present utility model.
Claims (10)
1. a kind of efficient integrated low temperature multiple-effect distillation sea water desalting device, it is characterised in that：Steamed including steam generator, multiple-effect
Hair device and condenser；The steam generator, the multi-effect evaporator and the condenser three are integrally disposed successively, form one
Body makeup is put；
The water inlet connection high-temperature-hot-water pipeline of the steam generator, the steam generator is produced and starts steam；Described
Start steam and the multi-effect evaporator is entered by pipeline, be evaporated and condense, produce steam and product water；The multiple-effect is steamed
The end steam for sending out device is condensed into product water into the condenser.
2. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 1, it is characterised in that：The steaming
Vapour generator includes heat exchanger tube and spray equipment, and the water inlet of the heat exchanger tube connects the high-temperature-hot-water pipeline；
The multi-effect evaporator include the 1st effect evaporator, the 2nd effect evaporator ... and the n-th effect evaporator, wherein n >=2 are described more
Effect evaporator is divided into preceding m effect evaporators and rear n-m effect evaporators, wherein m >=1；Each effect evaporation in the multi-effect evaporator
Device includes heat exchanger tube and spray equipment, and the water inlet of the spray equipment of the rear n-m effects evaporator is material seawater, the preceding m
The water inlet for imitating the spray equipment of evaporator is the strong brine produced in the rear n-m effects evaporator；
The steam that starts is by pipeline into the heat exchanger tube in the described 1st effect evaporator, with the described 1st effect evaporator
Spray equipment spray seawater exchanged heat after, be condensed into product water, the product water enters the steam generator
In spray equipment；The water of the spray equipment spray in the 1st effect evaporator is by steam and dense salt between formation effect after heat absorption
Water；Steam enters the heat exchanger tube of lower 1st effective evaporator between the effect；And the rest may be inferred, until the n-th effect evaporator；N-th effect evaporation
The steam produced in device after condenser condensation by forming product water.
3. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 2, it is characterised in that：Before described
The strong brine that m effect evaporators are produced is communicated to strong brine flash tank generation product water and super strong brine, and the super strong brine is through dense
Brine pump is discharged, and the product water enters rear n-m and imitates evaporator.
4. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 3, it is characterised in that：From m+
1 effect evaporator rises, and the strong brine of formation enters lower 1st effective evaporator step by step by strong brine pipe between the effect, until the n-th effect is steamed
Hair device；The strong brine that n-th effect evaporator converges enters the spray equipment that preceding m imitates evaporator after being promoted to preheater through middle water pump
It is interior.
5. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 2, it is characterised in that：Raw material sea
The water of water water inlet pipe is by after condenser heating, a part of seawater is discharged by seawater cooling water outlet pipe；Another part
As material water, after preheated device preheating, the spray equipment that the rear n-m imitates evaporator is entered in advection spray mode.
6. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 2, it is characterised in that：The height
Hot water in warm waterpipe is converted into middle low-temperature water heating again by being discharged after preheater by the steam generator.
7. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 6, it is characterised in that：The height
Warm water comes from the unemployed waste heat of industrial and mining enterprises, and the middle low-temperature water heating is converted to low-temperature water heating after preheating the material water
Return to industrial and mining enterprises.
8. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 1, it is characterised in that：Also include
Stream-jet ejector, the stream-jet ejector is connected and vacuumizes with the multi-effect evaporator and the condenser respectively.
9. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 2, it is characterised in that：It is described many
Effect evaporator spray equipment makes heat transfer intensity be sprayed with surface according to heterogeneous arrangement shower nozzle quantity and the spacing of various heat exchange intensity
Drench density altitude consistent.
10. efficient integrated low temperature multiple-effect distillation sea water desalting device according to claim 2, it is characterised in that：Also wrap
Include scaler system, the scaler system is sprayed to outside pipe to being passed through steam in the heat exchanger tube of the steam generator
Material seawater is drenched, by the way that pipe external and internal pressure is poor, temperature difference and spray effect, incrustation scale is removed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620908187.XU CN206232419U (en) | 2016-08-19 | 2016-08-19 | A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620908187.XU CN206232419U (en) | 2016-08-19 | 2016-08-19 | A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device |
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| CN206232419U true CN206232419U (en) | 2017-06-09 |
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ID=58989092
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115824A (en) * | 2016-08-19 | 2016-11-16 | 北京今大禹环境技术股份有限公司 | A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device |
| TWI809591B (en) * | 2021-12-08 | 2023-07-21 | 四季洋圃生物機電股份有限公司 | Sea and fresh water separation device |
-
2016
- 2016-08-19 CN CN201620908187.XU patent/CN206232419U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115824A (en) * | 2016-08-19 | 2016-11-16 | 北京今大禹环境技术股份有限公司 | A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device |
| TWI809591B (en) * | 2021-12-08 | 2023-07-21 | 四季洋圃生物機電股份有限公司 | Sea and fresh water separation device |
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