CN102107915A - Low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water - Google Patents
Low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water Download PDFInfo
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- CN102107915A CN102107915A CN200910215503XA CN200910215503A CN102107915A CN 102107915 A CN102107915 A CN 102107915A CN 200910215503X A CN200910215503X A CN 200910215503XA CN 200910215503 A CN200910215503 A CN 200910215503A CN 102107915 A CN102107915 A CN 102107915A
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- Prior art keywords
- strong brine
- pump
- finished product
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 title claims abstract description 29
- 239000013535 sea water Substances 0.000 title claims abstract description 28
- 238000004821 distillation Methods 0.000 title claims abstract description 9
- 238000010612 desalination reaction Methods 0.000 title abstract 2
- 239000012267 brine Substances 0.000 claims abstract description 50
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 50
- 239000006200 vaporizer Substances 0.000 claims description 12
- 238000011033 desalting Methods 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 239000000047 product Substances 0.000 description 24
- 239000002918 waste heat Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
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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
Abstract
The invention relates to a low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water. The device comprises double-effect or multiple-effect evaporators, a condenser, a condensate pump, a finished product water pump, a strong brine pump, and a finished product water connecting pipe and a strong brine connecting pipe which are positioned among evaporators, wherein one end of the finished product water pump and one end of the strong brine pump are connected with a finished product water port and a strong brine port of the last-effect evaporator; and a material water pipeline is communicated with a strong brine pump outlet pipeline through a seawater feeding pump and is connected with the condenser through a secondary vapor pipeline. The material water pipeline is communicated with the strong brine pump outlet pipeline and is connected with the condenser through the secondary vapor pipeline, so that the temperature of the material water entering the evaporators is increased, under enthalpy is reduced, afterheat of the strong brine is utilized completely, and heat efficiency of the whole system is improved.
Description
Technical field
The present invention relates to a kind of sea water desalinating plant, particularly relate to a kind of low temperature multiple-effect distillation sea water desalting device that utilizes salt water preheat material water.
Background technology
The material water temp that existing processes design enters vaporizer is lower, and the temperature that is used to promote underheat material water need consume a part of steam, is used to make the quantity of steam of material water evaporation to reduce.Single-effect evaporator ton water cost cost is higher relatively.
Summary of the invention
The objective of the invention is to, overcome the defective of above-mentioned prior art and a kind of low temperature multiple-effect distillation sea water desalting device that utilizes salt water preheat material water that makes full use of the strong brine preheating and improve system thermal efficiency is provided.
For achieving the above object, the present invention takes following design:
A kind of low temperature multiple-effect distillation sea water desalting device that utilizes salt water preheat material water, comprise that two imitate or two imitate above vaporizer, condenser, condensate pump, finished product water pump, strong brine pump and be positioned at finished product water pipe connecting and the strong brine pipe connecting of described vaporizer between imitating, one end of described finished product water pump and strong brine pump links to each other with the strong brine interface with the finished product water interface of last single-effect evaporator respectively, the material waterpipe flows out pipeline by seawater feeding pump and strong brine pump and is connected, and links to each other with described condenser by the secondary steam pipeline.
Preferably, the other end of described strong brine pump links to each other with the strong brine interchanger.Further, described material waterpipe links to each other with described strong brine interchanger by the seawater feeding pump, and links to each other with described condenser by described secondary steam pipeline.
Preferably, the other end of described finished product water pump links to each other with the finished product water-to-water heat exchanger.Further, described material waterpipe also links to each other with described finished product water-to-water heat exchanger by the seawater feeding pump, and links to each other with described condenser by described secondary steam pipeline.
Preferably, described condenser links to each other with last evaporator by steam-pipe.
Advantage of the present invention is: be connected because material waterpipe of the present invention flows out pipeline with the strong brine pump, and link to each other with described condenser by the secondary steam pipeline.Improved thus and entered vaporizer material water temp, reduced to owe enthalpy.Also utilize simultaneously the strong brine waste heat fully, improved the thermo-efficiency of entire system.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, the 1-non-condensable gas extracts device, 2-the 6th single-effect evaporator, 3-the 5th single-effect evaporator, 4-the 4th single-effect evaporator, 5-the 3rd single-effect evaporator, 6-the 2nd single-effect evaporator, 7-the 1st single-effect evaporator, the 8-steam ejector, 9-seawater feeding pump, 10-strong brine pump, 11-strong brine interchanger, 12-fresh water interchanger, 13-finished product water pump, 14-condenser, 15-finished product water interface, 16-strong brine interface, 17-secondary steam pipeline, the 18-steam-pipe, 101-finished product water pipe connecting, 102-strong brine pipe connecting.
Embodiment
Referring to Fig. 1, a kind of preferred embodiment that utilizes the low temperature multiple-effect distillation sea water desalting device of salt water preheat material water of the present invention shown in it, comprise that two imitate or the above vaporizer of two effects, the present invention is provided with sextuple- effect evaporator 2,3,4,5,6,7 (as shown in fig. 1), condenser 14, finished product water pump 13, strong brine pump 10 and be positioned at described vaporizer finished product water pipe connecting 101 and the strong brine pipe connecting 102 between imitating, one end of described finished product water pump 13 and strong brine pump 10 links to each other with strong brine interface 16 with the finished product water interface 15 of last single-effect evaporator respectively, the material waterpipe flows out pipeline by seawater feeding pump 9 with strong brine pump 10 and is connected, and links to each other with described condenser 14 by secondary steam pipeline 17.Particularly, finished product water pipe connecting 101 and strong brine pipe connecting 102 are used for that the last one finished product water that imitate to produce and strong brine are delivered to next effect and carry out flash distillation between effect, end product water and strong brine concentrate on the vaporizer end and imitate (as the vaporizer among Fig. 1 2), discharge by finished product water pump 13 and strong brine pump 10; On the other hand, the secondary steam that last evaporator pan feeding evaporation of seawater produces is introduced condenser 14 by secondary steam pipeline 17, and secondary steam is condensed into water in condenser 14.
Wherein, finished product water pump 13 is imitated finished product water interface 15 with the vaporizer end and is linked to each other, in order to the finished product water of discharger generation; The present invention also is provided with the condensate pump (not shown) and links to each other with the condensed water interface (not shown) of first evaporator 7, in order to the condensed water of discharger generation; Strong brine pump 10 is imitated strong brine interface 16 with the vaporizer end and is linked to each other, in order to the strong brine of discharger generation.
Preferably, as shown in Figure 1, the other end of described strong brine pump 10 links to each other with strong brine interchanger 11.Further, described material waterpipe links to each other with described strong brine interchanger 11 by seawater feeding pump 9, and links to each other with described condenser 14 by described secondary steam pipeline 17.Material water mixes at described strong brine interchanger 11 with strong brine, by utilizing the waste heat of part or all of strong brine, with strong brine with have certain underheated material water and directly mix the secondary steam that the back produces and be incorporated in the condenser 14, more preferably, described condenser 14 links to each other with last evaporator by steam-pipe 18, further make full use of the preheating of strong brine thus, improved the thermo-efficiency of entire system.
Preferably, the other end of described finished product water pump 13 links to each other with finished product water-to-water heat exchanger 12.Described material waterpipe also links to each other with described finished product water-to-water heat exchanger 12 by seawater feeding pump 9, and links to each other with described condenser 14 by described secondary steam pipeline 17.The waste heat that also can make full use of finished product water thus improves the temperature of material water.
Obviously, those of ordinary skill in the art can constitute various types of sea water desalinating plants with a kind of low temperature multiple-effect distillation sea water desalting device that utilizes salt water preheat material water of the present invention.
The foregoing description is only for the usefulness that the present invention is described; and be not to be limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also should belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.
Claims (6)
1. low temperature multiple-effect distillation sea water desalting device that utilizes salt water preheat material water, it is characterized in that: comprise that two imitate or the above vaporizer (2 of two effects, 3,4,5,6,7), condenser (14), finished product water pump (13), strong brine pump (10) and be positioned at described vaporizer finished product water pipe connecting (101) and the strong brine pipe connecting (102) between imitating, one end of described finished product water pump (13) and strong brine pump (10) links to each other with strong brine interface (16) with the finished product water interface (15) of last single-effect evaporator respectively, the material waterpipe flows out pipeline by seawater feeding pump (9) and strong brine pump (10) and is connected, and links to each other with described condenser (14) by secondary steam pipeline (17).
2. sea water desalinating plant according to claim 1 is characterized in that: the other end of described strong brine pump (10) links to each other with strong brine interchanger (11).
3. sea water desalinating plant according to claim 2 is characterized in that: described material waterpipe links to each other with described strong brine interchanger (11) by seawater feeding pump (9), and links to each other with described condenser (14) by described secondary steam pipeline (17).
4. sea water desalinating plant according to claim 1 is characterized in that: the other end of described finished product water pump (13) links to each other with finished product water-to-water heat exchanger (12).
5. sea water desalinating plant according to claim 4 is characterized in that: described material waterpipe also links to each other with described finished product water-to-water heat exchanger (12) by seawater feeding pump (9), and links to each other with described condenser (14) by described secondary steam pipeline (17).
6. sea water desalinating plant according to claim 1 is characterized in that: described condenser (14) links to each other with last evaporator by steam-pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215503XA CN102107915A (en) | 2009-12-29 | 2009-12-29 | Low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215503XA CN102107915A (en) | 2009-12-29 | 2009-12-29 | Low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water |
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| Publication Number | Publication Date |
|---|---|
| CN102107915A true CN102107915A (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910215503XA Pending CN102107915A (en) | 2009-12-29 | 2009-12-29 | Low-temperature multiple-effect distillation seawater desalination device utilizing saltwater preheating material water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508502A (en) * | 2013-09-22 | 2014-01-15 | 汉盛（上海）海洋装备技术股份有限公司 | Two-stage cryogenic-distillation sea water desalination process utilizing waste heat of marine main engine and generator |
| CN103508501A (en) * | 2013-10-02 | 2014-01-15 | 大连理工大学 | Salt water circulating multiple-effect evaporation seawater desalination device |
| CN104944494A (en) * | 2015-06-04 | 2015-09-30 | 浙江大学 | Method and system for cogeneration of air conditioner and advection type sea water desalting device |
| CN111392791A (en) * | 2020-04-02 | 2020-07-10 | 郑州电力高等专科学校 | Multi-effect distillation seawater desalination system combined with heat pump |
-
2009
- 2009-12-29 CN CN200910215503XA patent/CN102107915A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508502A (en) * | 2013-09-22 | 2014-01-15 | 汉盛（上海）海洋装备技术股份有限公司 | Two-stage cryogenic-distillation sea water desalination process utilizing waste heat of marine main engine and generator |
| CN103508501A (en) * | 2013-10-02 | 2014-01-15 | 大连理工大学 | Salt water circulating multiple-effect evaporation seawater desalination device |
| CN104944494A (en) * | 2015-06-04 | 2015-09-30 | 浙江大学 | Method and system for cogeneration of air conditioner and advection type sea water desalting device |
| CN111392791A (en) * | 2020-04-02 | 2020-07-10 | 郑州电力高等专科学校 | Multi-effect distillation seawater desalination system combined with heat pump |
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Application publication date: 20110629 |