CN101648733B - Multi-effect distillation seawater desalinating device of multi-stage type condenser - Google Patents
Multi-effect distillation seawater desalinating device of multi-stage type condenser Download PDFInfo
- Publication number
- CN101648733B CN101648733B CN2009101829711A CN200910182971A CN101648733B CN 101648733 B CN101648733 B CN 101648733B CN 2009101829711 A CN2009101829711 A CN 2009101829711A CN 200910182971 A CN200910182971 A CN 200910182971A CN 101648733 B CN101648733 B CN 101648733B
- Authority
- CN
- China
- Prior art keywords
- condensing surface
- section
- effect evaporator
- seawater
- evaporator
- 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.)
- Active
Links
Images
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
Abstract
The invention relates to a multi-effect distillation seawater desalinating device of a multi-section type condenser, belonging to the technical field of seawater desalinization. The device comprises an evaporator, a condenser, a working steam inlet (1), a working steam condensate water outlet (2), a concentrated seawater connecting pipe (4), a condensed fresh water connecting pipe (5), a concentrated seawater draining pump (9), a fresh water draining pump (10), a secondary steam inlet condensing pipe (11), a seawater inlet (13), a cooling seawater draining port (14) and a seawater inlet branch pipe (16). The invention is characterized in that the condenser is divided into N sections from section 1 to section N, and seawater enters in the multi-section type condenser from the section N to the section 1 which are connected in series; on the basis of an original M-effect evaporator, an N-1-effect evaporator which corresponds to the N-section condenser is additionally arranged on the evaporator; secondary steam coming out of the original M-effect evaporator is divided into two paths and enters the 1-effect condenser and the M+1-effect evaporator in parallel, and so forth,, the secondary steam coming out of the M+N-1-effect evaporator enters the N-effect condenser finally. On the premise of not increasing the quantity of inlet seawater of unit water making quantity, the invention can increase the total temperature difference of the first evaporator and the last evaporator.
Description
(1) technical field
The present invention relates to a kind of multi-effect distillation seawater desalinating device of multi-stage type condenser.Belong to field of sea water desalting technology.
(2) background technology
Along with the raising of sustainable development of economy and living standards of the people, people are increasing to the demand of fresh water, and are increasingly high to requirements in water quality, and the deficiency of water resources, distribution is unequal, make the water resources imbalance between supply and demand of original anxiety more sharp-pointed.Low temperature multiple-effect distillation sea water desalting device in the desalination technology is to adopt heat energy system water, and the quality of system water is high, has vast potential for future development.
Effect distillation seawater desalinating device of multi is to drive through repeatedly evaporation and condensation with a certain amount of working steam, thereby obtains being multiple times than the condensed water of heating steam amount.The multiple-effect distillation sea water desalting condensing surface is used for the secondary steam that the condensation last evaporator produces, and promotes the temperature of evaporation feed liquor seawater simultaneously.Because the load of condensing surface is bigger, the seawater part after the intensification enters the sea as water coolant, and another part adds behind the Scale inhibitors as vaporizer distillatory charging seawater.Like Fig. 1 is the quadruple effect distillation seawater desalinating device, and it is made up of 1st effective evaporator 3,2nd effect evaporator 6, triple-effect evaporator 7, quadruple effect evaporator 8, condensing surface 12, sea intake 13, cooled with seawater water relief outlet 14, sea intake arm 16 etc.
The water generation ratio of effect distillation seawater desalinating device of multi and cost are directly related with the temperature difference first, last evaporator at present, and the temperature difference is big more, imitate the many water generation ratios height of number, and it is low that unit makes water yield cost.Because first evaporator receives the influence of factors such as seawater fouling, corrosion, the generally high evaporation temperature of seawater can not be above 70 ℃.The temperature difference that strengthens head, last evaporator must reduce condensing temperature; Condensing temperature receives the charging seawater to go out the restriction of condenser temperature; It is high 2～4 ℃ to go out condenser temperature than charging seawater; Because the charging seawater limits by natural condition, summer seawater medial temperature generally about 25～35 ℃, seawater is through the condensing surface heat exchange temperature back entering vaporizer that raises.Condensing temperature is reduced be restricted,, then can reduce condensing temperature, increase the temperature difference if improve the seawater amount that unit makes the water yield, but charging seawater water intake system and delivery system increasing, initial cost and running cost improve.How do not improving under the prerequisite of charging seawater amount that unit makes the water yield, through reducing condensing temperature and then strengthen total temperature difference first, last evaporator, and then improving water generation ratio, reducing running cost and become the present problem that needs solution with material cost.
(3) summary of the invention
The objective of the invention is to solve above-mentioned deficiency, provide a kind of, can strengthen multi-effect distillation seawater desalinating device of multi-stage type condenser first, the last evaporator total temperature difference not improving under the prerequisite of charging seawater amount that unit makes the water yield.
The objective of the invention is to realize like this: a kind of multi-effect distillation seawater desalinating device of multi-stage type condenser; Comprise that vaporizer, condensing surface, working steam import, working steam coagulate water out, concentrated seawater connecting leg, the fresh water connecting leg that condenses, concentrated seawater overboard pump, fresh water discharge pump, secondary steam advance condenser tube, sea intake, cooled with seawater water relief outlet, non-condensable gases relief outlet and sea intake arm; Said condensing surface is divided into 1,2,3 ... The N section; Every section condensing surface is an individual cavity; Seawater series connection get into N, N-1 ... 2,1 section condensing surface; Said vaporizer is on original M single-effect evaporator basis, to increase the N-1 single-effect evaporator corresponding with N section condensing surface, and the secondary steam that former M single-effect evaporator comes out is divided into two the tunnel, and parallel connection gets into the 1st and imitates condensing surface and M+1 single-effect evaporator; And the like, the secondary steam that last M+N-1 single-effect evaporator comes out gets into N and imitates condensing surface.
The invention has the beneficial effects as follows:
The restriction that condensing temperature mainly receives the charging seawater to go out condenser temperature, it is high 2～4 ℃ to go out condenser temperature than charging seawater, because effect distillation seawater desalinating device of multi is lower through the seawater temperature rise of condensing surface, generally all above more than 10 ℃.Condensing surface through accomplishing whole seawater temperature rise originally is divided into 1,2,3 ... The N section; Seawater series connection get into N, N-1 ... 2,1 section condensing surface; General every section seawater temperature rise makes it become N section condensing surface at 3～5 ℃, makes the 1st section condensing surface identical with original system through this kind mode; Condensing temperature in other each section condensing surfaces reduces successively; Vaporizer is imitated at original M increases the N-1 single-effect evaporator corresponding with N section condensing surface on the basis, former M is imitated out the secondary steam that directly gets into condensing surface and is divided into two the tunnel, and parallel connection entering the 1st is imitated condensing surface and added hot feed seawater and M+1 single-effect evaporator heating tube off-lying sea water generates secondary steam.And the like, the secondary steam that last M+N-1 single-effect evaporator comes out gets into N and imitates condensing surface.Through the segmentation setting of condensing surface, make full use of the thermograde of charging seawater in condensing surface, reduced condensing temperature, strengthened total temperature difference first, last evaporator.Through above scheme, unit makes under the constant prerequisite of the charging seawater amount of the water yield, has improved water generation ratio, has increased and has made the water yield, reduces running cost.Strengthen the heat transfer temperature difference of vaporizer through the condensing temperature gradient of control segmentation condensing surface, reduce the heat transfer area that unit makes the vaporizer of the water yield, save material cost, reduce initial cost.
(4) description of drawings
Fig. 1 is effect distillation seawater desalinating device of multi synoptic diagram in the past.
Fig. 2 is imitated the distillation seawater desalinating device synoptic diagram for two-section type condensing surface five of the present invention.
Fig. 3 is imitated the distillation seawater desalinating device synoptic diagram for syllogic condensing surface six of the present invention.
Among the figure:
Working steam import 1; Working steam coagulates water out 2; 1st effective evaporator 3; Concentrated seawater connecting leg 4; Fresh water connecting leg 5 condenses; 2nd effect evaporator 6; Triple-effect evaporator 7; Quadruple effect evaporator 8; Concentrated seawater overboard pump 9; Fresh water discharge pump 10; Secondary steam advances condenser tube 11; The 1st section condensing surface 12; Sea intake 13; Cooled with seawater water relief outlet 14; Non-condensable gases relief outlet 15; Sea intake arm 16; Quintuple effect evaporator 17; The 2nd section condensing surface 18; Sextuple-effect evaporator 19; The 3rd section condensing surface 20.
(5) embodiment
Be illustrated in figure 2 as two-section type condensing surface five and imitate the distillation seawater desalinating device synoptic diagram, it coagulates water out 2,1st effective evaporator 3, concentrated seawater connecting leg 4, the fresh water connecting leg 5 that condenses, 2nd effect evaporator 6, triple-effect evaporator 7, quadruple effect evaporator 8, concentrated seawater overboard pump 9, fresh water discharge pump 10, secondary steam by working steam import 1, working steam and advances condenser tube 11, the 1st section condensing surface 12, sea intake 13, cooled with seawater water relief outlet 14, non-condensable gases relief outlet 15, sea intake arm 16, quintuple effect evaporator 17, the 2nd section condensing surface 18 and system (not shown) etc. and form.Be on former low temperature multiple-effect distillation sea water desalting device basic; Former condensing surface is divided into the 1st section condensing surface and the 2nd section condensing surface; Every section condensing surface is an individual cavity; Increase quintuple effect evaporator as last evaporator, the secondary steam that comes out from quadruple effect evaporator is divided into two the tunnel, and parallel connection gets into the 1st section condensing surface and adds hot feed seawater and quintuple effect evaporator heating tube off-lying sea water generates secondary steam.The secondary steam that quintuple effect evaporator produces gets into the 2nd section condensing surface and adds the hot feed seawater.After the series connection of charging seawater is introduced into the 2nd section condensing surface; Get into the 1st section condensing surface again; Realize the temperature-gradient method of charging seawater, the condensing temperature of the 1st section, the 2nd section condensing surface reduces successively, with the corresponding reduction of vaporization temperature of the 2nd section quintuple effect evaporator that condensing surface is corresponding; Temperature-resistant because of first evaporator, so comparing in the past, total temperature difference first, last evaporator strengthens.
Be illustrated in figure 3 as syllogic condensing surface six and imitate the distillation seawater desalinating device synoptic diagram; It and difference as shown in Figure 2 are condensing surface is divided into the 1st section condensing surface, the 2nd section condensing surface and the 3rd section condensing surface 20; Vaporizer has increased sextuple-effect evaporator 19; Sextuple-effect evaporator 19 is as last evaporator, and the secondary steam that comes out from quadruple effect evaporator is divided into two the tunnel, and parallel connection gets into the 1st section condensing surface and adds hot feed seawater and quintuple effect evaporator heating tube off-lying sea water generates secondary steam.The secondary steam that quintuple effect evaporator produces gets into the 2nd section condensing surface and adds hot feed seawater and sextuple-effect evaporator 19 heating tube off-lying sea water generates secondary steams.The secondary steam that sextuple-effect evaporator produces gets into the 3rd section condensing surface and adds the hot feed seawater.The series connection of charging seawater gets into the 3rd section condensing surface, the 2nd section condensing surface, the 1st section condensing surface successively; Realize the temperature-gradient method of charging seawater; The condensing temperature of the 1st section, the 2nd section, the 3rd section condensing surface reduces successively; Fall lowlyer with the vaporization temperature of the 3rd section sextuple-effect evaporator that condensing surface is corresponding, because of first evaporator temperature-resistant, so the total temperature difference of first, last evaporator more than increasing in the past.
Multi-effect distillation seawater desalinating device of multi-stage type condenser in the above scheme, system can be band TVC, also can be that not to be with TVC, driving heat source can be steam, hot water or other thermals source.
Claims (3)
1. multi-effect distillation seawater desalinating device of multi-stage type condenser; Comprise that vaporizer, condensing surface, working steam import (1), working steam coagulate water out (2), concentrated seawater connecting leg (4), the fresh water connecting leg (5) that condenses, concentrated seawater overboard pump (9), fresh water discharge pump (10), secondary steam advance condenser tube (11), sea intake (13), cooled with seawater water relief outlet (14), non-condensable gases relief outlet (15) and sea intake arm (16); It is characterized in that said condensing surface is divided into 1,2,3 ... The N section; Every section condensing surface is an individual cavity; Seawater series connection get into N, N-1 ... 2,1 section condensing surface; Said vaporizer is on original M single-effect evaporator basis, to increase the N-1 single-effect evaporator corresponding with N section condensing surface, and the secondary steam that former M single-effect evaporator comes out is divided into two the tunnel, and parallel connection gets into the 1st section condensing surface and M+1 single-effect evaporator; And the like, the secondary steam that last M+N-1 single-effect evaporator comes out gets into N section condensing surface; Said M=4, N=2 or M=4, N=3.
2. a kind of multi-effect distillation seawater desalinating device of multi-stage type condenser according to claim 1; It is characterized in that said multi-effect distillation seawater desalinating device of multi-stage type condenser is that two-section type condensing surface five is imitated distillation seawater desalinating device; Said vaporizer comprises 1st effective evaporator (3), 2nd effect evaporator (6), triple-effect evaporator (7), quadruple effect evaporator (8) and quintuple effect evaporator (17); Quintuple effect evaporator (17) is as last evaporator; Said condensing surface is divided into the 1st section condensing surface (12) and the 2nd section condensing surface (18); The secondary steam that comes out from quadruple effect evaporator (8) is divided into two the tunnel, and parallel connection gets into the 1st section condensing surface (12) and quintuple effect evaporator (17), and the secondary steam that quintuple effect evaporator (17) produces gets into the 2nd section condensing surface; After the seawater series connection is introduced into the 2nd section condensing surface (18), get into the 1st section condensing surface (12) again.
3. a kind of multi-effect distillation seawater desalinating device of multi-stage type condenser according to claim 1; It is characterized in that said multi-effect distillation seawater desalinating device of multi-stage type condenser is that syllogic condensing surface six is imitated distillation seawater desalinating device; Said vaporizer comprises 1st effective evaporator (3), 2nd effect evaporator (6), triple-effect evaporator (7), quadruple effect evaporator (8), quintuple effect evaporator (17) and sextuple-effect evaporator (19); Sextuple-effect evaporator (19) is as last evaporator; Said condensing surface is divided into the 1st section condensing surface (12), the 2nd section condensing surface (18) and the 3rd section condensing surface (20); The secondary steam that comes out from quadruple effect evaporator (8) is divided into two the tunnel, and parallel connection gets into the 1st section condensing surface (12) and quintuple effect evaporator (17), and the secondary steam that quintuple effect evaporator (17) produces is divided into two the tunnel again; Parallel connection gets into the 2nd section condensing surface (18) and sextuple-effect evaporator (19), and the secondary steam that sextuple-effect evaporator (19) produces gets into the 3rd section condensing surface (20); The seawater series connection gets into the 3rd section condensing surface (20), the 2nd section condensing surface (18) and the 1st section condensing surface (12) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101829711A CN101648733B (en) | 2009-09-11 | 2009-09-11 | Multi-effect distillation seawater desalinating device of multi-stage type condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101829711A CN101648733B (en) | 2009-09-11 | 2009-09-11 | Multi-effect distillation seawater desalinating device of multi-stage type condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101648733A CN101648733A (en) | 2010-02-17 |
| CN101648733B true CN101648733B (en) | 2012-01-25 |
Family
ID=41671088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101829711A Active CN101648733B (en) | 2009-09-11 | 2009-09-11 | Multi-effect distillation seawater desalinating device of multi-stage type condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101648733B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588254B (en) * | 2013-09-12 | 2015-01-07 | 东北林业大学 | Low-pressure multi-effect circulating seawater desalting system |
| CN104261497B (en) * | 2014-07-23 | 2015-09-30 | 中国科学院广州能源研究所 | A kind of bubbling negative pressure evaporation sea water desalinating plant and production method |
| CN107062927B (en) * | 2017-04-19 | 2024-02-06 | 北京今大禹环境技术股份有限公司 | Multistage condenser reverse cooling noncondensable gas system for sea water desalination and process thereof |
| CN106915817A (en) * | 2017-04-24 | 2017-07-04 | 奥为（天津）环保科技有限公司 | A kind of vehicular efficient water repair system |
| CN108314197A (en) * | 2018-02-27 | 2018-07-24 | 首钢京唐钢铁联合有限责任公司 | A kind of hot method desalination plant and medicament addition device and technique |
| CN109568996A (en) * | 2018-12-20 | 2019-04-05 | 中铝国际工程股份有限公司 | A kind of three sections of evaporation technologies of concentrating sodium aluminate solution |
| CN109675338B (en) * | 2019-01-22 | 2023-08-22 | 天津乐科节能科技有限公司 | Working method of exhaust steam compression condensation type vacuum multi-effect evaporation crystallization system |
-
2009
- 2009-09-11 CN CN2009101829711A patent/CN101648733B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101648733A (en) | 2010-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101648733B (en) | Multi-effect distillation seawater desalinating device of multi-stage type condenser | |
| CN101948148B (en) | Energy-saving low-temperature multiple-effect seawater desalting device | |
| CN104402079B (en) | Industrial exhaust heat type low temperature multi-effect seawater desalting system and method for desalting seawater thereof | |
| CN102642883B (en) | System for desalinating seawater by waste heat from power plant | |
| CN102329037B (en) | Low-temperature multi-effect evaporation seawater desalinization device and method for desalting seawater | |
| CN101264947B (en) | Segment water-water preheating multiple-effect distillation sea water desalination technical process | |
| CN102336448B (en) | Saline treatment system and method | |
| CN2835215Y (en) | Directly-heated solar seawater desalinating apparatus | |
| CN103073141A (en) | Low-temperature multi-effect distilled seawater desalination system with variable effect groups | |
| CN101880068A (en) | Water treatment device and method | |
| CN202116342U (en) | Industrial exhaust heat low-temperature multiple-effect seawater desalinization system | |
| CN101525196A (en) | Multi-effect distilled seawater desalting plant with pre-heater | |
| CN105110400A (en) | Turbine dead steam latent heat comprehensive utilization thermodynamic system | |
| CN205045839U (en) | Thermodynamic system that steam turbine exhaust steam latent heat was used multipurposely | |
| CN106082378A (en) | A kind of low temperature (1+n) effect distillation seawater desalination technique | |
| CN208603748U (en) | A kind of water treatment vaporization system | |
| CN201901602U (en) | Energy-saving, low-temperature and multiple-effect sea water desalinating device | |
| CN202284171U (en) | Low-temperature multi-effect evaporation seawater desalinization device | |
| CN215048809U (en) | System for recovering waste heat in seawater desalination process and heating domestic water | |
| CN201347369Y (en) | Seawater desalination final effect condenser | |
| CN201512422U (en) | Novel multi-effect distillation desalination plant of multi-section type condenser | |
| CN104803538A (en) | Low-cost and low-energy-consumption sea water processing process method | |
| CN103030185B (en) | Low-temperature multi-effect sea water desalinization system | |
| CN201395520Y (en) | Exhaust system of multi-effect distilled seawater desalting plant with pre-heater | |
| CN103086451A (en) | Multi-effect evaporative sea water desalinating device with hybrid process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHUANGLIANG ECO-ENERGEY SYSTEMS CO.,LTD. Free format text: FORMER OWNER: SHUANGLIANG AIR CONDITIONING EQUIPMENT CO LTD, JIANGSU Effective date: 20100913 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100913 Address after: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Applicant after: Shuangliang Energy Saving System Co., Ltd. Address before: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Applicant before: Shuangliang Air Conditioning Equipment Co., Ltd., Jiangsu |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |