CN201834783U - Desalination system for sea water - Google Patents
Desalination system for sea water Download PDFInfo
- Publication number
- CN201834783U CN201834783U CN2010202128257U CN201020212825U CN201834783U CN 201834783 U CN201834783 U CN 201834783U CN 2010202128257 U CN2010202128257 U CN 2010202128257U CN 201020212825 U CN201020212825 U CN 201020212825U CN 201834783 U CN201834783 U CN 201834783U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- seawater
- sea water
- desalination system
- seawater desalination
- 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.)
- Expired - Lifetime
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 168
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 53
- 239000003546 flue gas Substances 0.000 claims abstract description 71
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000779 smoke Substances 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000013505 freshwater Substances 0.000 description 5
- 238000004821 distillation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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 utility model discloses a desalination system for sea water, which comprises a sea water desalination device (1), a heat exchange device (2) and an induced draught fan (3), wherein the heat exchange device (2) comprises a flue gas inlet (I), a flue gas outlet (O), a sea water inlet (P), a sea water outlet (T) and a flue gas pipeline (10), wherein two ends of the flue gas pipeline (10) are connected to the flue gas inlet and the flue gas outlet; the flue gas inlet is connected to a flue gas source (8) through a flue gas input pipeline (4); the flue gas outlet is connected to the induced draught fan (3) through a flue gas output pipeline (5); the sea water inlet is connected to a sea water source (9) through a sea water input pipeline (6); and the sea water outlet is connected to the sea water desalination device (1) through a sea water outlet pipeline (7). The desalination system for sea water heats sea water by using the waste heat of flue gas, reduces the heat loss of exhaust smoke, reduces the thermal pollution of the high smoke exhaust temperature to the environment, improves the heat utilization rate and saves the sea water desalination cost.
Description
Technical field
The utility model relates to a kind of seawater desalination system, particularly, relates to a kind of seawater desalination system that utilizes distillating method to desalinize seawater.
Background technology
World Freshwater Resources is day by day deficient, and in view of this, people are constantly developed desalination technology, seawater can be converted to the fresh water that the mankind can utilize.
At present, it is distillation method more widely that desalination technology is used, be characterized in making seawater produce steam with after being heated to certain temperature through pretreated seawater, thus and then condensed steam acquisition fresh water.For example, existing low-temperature multi-effect seawater desalination device promptly is to utilize drawing gas of steam turbine of thermal power plant that pretreated seawater is heated to about 68 ℃, adopts the seawater flash of steam of flash evaporation technology with this temperature then, thereby and condensation seawater steam obtain fresh water.
That is to say, utilizing distillation method to carry out in the prior art of sea water desaltination, all need can adopt distillation method seawater to be desalinated heating through pretreated seawater.In existing seawater desalination system, seawater is heated general by two kinds of methods: the first, utilize the energy (for example electric power, coal, liquefied gas etc.) seawater to be heated by special heating unit; The second, utilize drawing gas of steam turbine to add hot sea water.But, all there is significant disadvantages in these two kinds of methods, for example, utilize the energy seawater to be heated the huge consumption that can cause the energy by special heating unit, this can significantly increase Cost of seawater desalination undoubtedly, makes the sea water desaltination that obtains to popularize widely; For another example, utilize drawing gas of steam turbine to add hot sea water, this can cause the turbine work decrease in efficiency, influence the power output of steam turbine, make the steam turbine cisco unity malfunction, and, for pure condensate formula Steam Turbine, if utilize drawing gas of steam turbine to add hot sea water, need transform steam turbine, this can increase the risk and cost of technical elements.
Therefore, press for a kind of novel seawater desalination system, this seawater desalination system can heat seawater effectively, and reduces the sea water desaltination cost significantly.
The utility model content
Technical problem to be solved in the utility model provides a kind of seawater desalination system, and this seawater desalination system can add hot sea water effectively so that seawater is suitable for desalinating, and can reduce the sea water desaltination cost effectively.
For solving the problems of the technologies described above, the utility model provides a kind of seawater desalination system, this seawater desalination system comprises sea water desalinating plant, wherein, described seawater desalination system also comprises interchanger and suction fan, described interchanger comprises smoke inlet, exhanst gas outlet, the seawater inlet, seawer outlet and the flue that is positioned at described interchanger inside, the two ends of wherein said flue are connected to described smoke inlet and exhanst gas outlet, described smoke inlet is connected in the flue gas source by the flue gas input channel, described exhanst gas outlet is connected in described suction fan by the flue gas output channel, described seawater inlet is connected in source of seawater by the seawater input channel, and described seawer outlet is connected in described sea water desalinating plant by the seawater output channel.
By technique scheme of the present utility model, because described sea water system (for example can utilize flue gas, the flue gas of boiler emission, Steel Plant's discharged flue gas or other flue gas) add hot sea water, it does not need to utilize as prior art drawing gas of the energy or steam turbine to add hot sea water, thereby saved the energy, and do not needed Steam Turbine to be transformed for utilizing drawing gas of steam turbine to add hot sea water.That is to say, seawater desalination system of the present utility model has utilized the used heat of boiler tail flue gas (or other flue gases) to add hot sea water dexterously, reduced the calorific loss of smoke evacuation, reduced of the thermal pollution of funnel temperature height to environment, improved efficiency of utilization, meet the requirement of national energy-saving and environmental protection, and saved Cost of seawater desalination.
Description of drawings
Describe preferred implementation of the present utility model in detail below in conjunction with accompanying drawing, by describing in detail, above-mentioned and other purpose, feature and advantage of the present utility model will be tangible:
Fig. 1 is the synoptic diagram of the seawater desalination system of the utility model preferred implementation.
The reference marker explanation:
1 sea water desalinating plant, 2 interchanger
3 suction fans, 4 flue gas input channels
5 smoke discharge tube roads, 6 seawater input channels
7 seawater output channels, 8 flue gas sources
9 source of seawater, 10 flues
P seawater inlet T seawer outlet
I smoke inlet O exhanst gas outlet
Embodiment
Below in conjunction with accompanying drawing preferred implementation of the present utility model is described in detail.
As mentioned above, in existing desalination technology, utilize drawing gas of the energy or steam turbine that seawater heated and have many shortcomings.In view of this, need a kind of novel seawater desalination system, this seawater desalination system should add hot sea water effectively so that seawater is suitable for desalinating, and can reduce the sea water desaltination cost significantly.
As everyone knows, the temperature of boiler tail flue gas (and other discharged flue gas) is generally about 130 degree.General these flue gases not markon's land used are discharged in the atmosphere or through being discharged in the atmosphere after simple the purification, but heat is difficult to be utilized again in these flue gases, and this has obviously caused the huge waste of energy.Add hot sea water if the heat of these wastes can be used for seawater desalination system, then not only can make full use of energy, and can reduce the sea water desaltination cost significantly.
For this reason, the utility model provides following a kind of seawater desalination system, referring to Fig. 1, this seawater desalination system comprises sea water desalinating plant 1, wherein, this seawater desalination system also comprises interchanger 2 and suction fan 3, described interchanger 2 comprises smoke inlet I, exhanst gas outlet O, seawater inlet P, seawer outlet T and the flue 10 that is arranged on interchanger 2 inside, the two ends of this flue 10 are connected to smoke inlet I and exhanst gas outlet O, wherein said smoke inlet I is connected in flue gas source 8 by flue gas input channel 4, exhanst gas outlet O is connected in described suction fan 3 by flue gas output channel 5, described seawater inlet P is connected in source of seawater 9 by seawater input channel 6, and seawer outlet T is connected in sea water desalinating plant 1 by seawater output channel 7.
By above-mentioned seawater desalination system of the present utility model, because this sea water system (for example can utilize flue gas, the flue gas of boiler emission, Steel Plant's discharged flue gas or other flue gas) heat add hot sea water, therefore do not need as prior art, to utilize drawing gas of the energy or steam turbine to add hot sea water, thereby saved the energy.That is to say, seawater desalination system of the present utility model has utilized the used heat of boiler tail flue gas (or other flue gases) to add hot sea water dexterously, reduced the calorific loss of smoke evacuation, reduced of the thermal pollution of funnel temperature height to environment, improved efficiency of utilization, meet the requirement of national energy-saving and environmental protection, and saved Cost of seawater desalination significantly.
Below describe each building block of seawater desalination system of the present utility model in detail.
Sea water desalinating plant 1 can be the distilling sea water desalter that adopts usually in the existing sea water desaltination field, it is mainly used in the seawater that will heat through interchanger 2 and further flashes to steam, and, can be the fresh water that the mankind use to obtain with the seawater vapor condensation.Described sea water desalinating plant 1 for example can be low-temperature multi-effect seawater desalination device or conventional distilling sea water desalter.
Interchanger 2 mainly is to be used for the heat of flue gas is delivered in the seawater, and the principle of its heat exchange principle and normally used interchanger is similar.The inside of interchanger 2 has flue 10, and this flue 10 should have good thermal conductivity, therefore for example can adopt aluminum pipe or copper pipe.In order to increase the contact area with seawater, this flue 10 can form curved shape, to strengthen the heat exchanger effectiveness with seawater.Interchanger 2 has smoke inlet I, exhanst gas outlet O, seawater inlet P and seawer outlet T, the two ends of wherein said flue 10 are sealably coupled to smoke inlet I and exhanst gas outlet O respectively, smoke inlet I is connected to flue gas source 8 by flue gas input channel 4, and exhanst gas outlet O is connected to suction fan 3 by flue gas output channel 5.Preferably, because flue gas is in flue gas input channel 4 fashion and does not carry out heat exchange with seawater, therefore should reduce the calorific loss of flue gas as much as possible at these flue gas input channel 4 places, therefore can thermal insulation layer be set at the outside surface of this flue gas input channel 4, produce the over-drastic thermosteresis when preventing that flue gas from passing through flue gas input channel 4.
Source of seawater 9 is connected in the seawater inlet P of interchanger 2 by seawater input channel 6, this source of seawater 9 generally should have suitable pressure, so that seawater flows through interchanger 2 continuously, and flow to sea water desalinating plant 1 via the seawater output channel 7 of the seawer outlet T that is connected in interchanger 2, handle can carry out final sea water desaltination.Preferably, the pressure of source of seawater 9 can remain on 2MPa～3MPa.In order to control the flow that seawater is input to seawater in the described interchanger 2, preferably, can be provided with the flow control valve (not shown) by seawater input channel 6, this flow control valve can be with the Flow-rate adjustment of seawater to being zero (being equivalent to closing condition), the input that also can regulate seawater according to the heating state of interchanger 2.In addition, because seawater heats after by seawater output channel 7 efferent tract sea water desalinating plants 1 through interchanger 2, in order to prevent to produce tangible thermosteresis through the seawater of heating through seawater output channel 7 time, preferably, the outside surface of this seawater output channel 7 can be provided with thermal insulation layer.
The use of seawater desalination system of the present utility model is below described.
At first, flue gas in the suction fan 3 suction flue gas sources 8, the flue 10 in the heat exchanging device 2 carries out preheating, makes that then the seawater in the source of seawater 9 heats through interchanger 2, to output to sea water desalinating plant 1 through the seawater of heating at last, handle to carry out sea water desaltination.
By last description as can be known, the characteristics of seawater desalination system of the present utility model are to utilize boiler of power plant tail flue gas or other flue gases to heat through pretreated seawater by interchanger 2 dexterously, therefore do not need as prior art, to utilize drawing gas of the energy or steam turbine to add hot sea water, thereby saved the energy, therefore and do not need the steam turbine of original unit is transformed, saved improvement cost and avoided the risk of technical elements.That is to say, seawater desalination system of the present utility model has utilized the used heat of boiler tail flue gas (or other flue gases) to add hot sea water, has reduced the calorific loss of smoke evacuation, has reduced the thermal pollution of funnel temperature height to environment, improve efficiency of utilization, met the requirement of national energy-saving and environmental protection.The more important thing is that it not only can add hot sea water effectively so that seawater is suitable for desalinating processing, and saved Cost of seawater desalination significantly.
Preferred implementation of the present utility model has below been described in conjunction with the accompanying drawings; but; the utility model also is limited to detail in the above-mentioned preferred implementation; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.In addition, the concrete technical characterictic of each that describe in above-mentioned embodiment under the situation that meets the utility model application purpose, can carry out arbitrary combination to form other selectable embodiment.Protection domain of the present utility model is limited by claim.
Claims (10)
1. seawater desalination system, this seawater desalination system comprises sea water desalinating plant (1), it is characterized in that, described seawater desalination system also comprises interchanger (2) and suction fan (3), described interchanger (3) comprises smoke inlet (I), exhanst gas outlet (O), seawater inlet (P), seawer outlet (T) and the flue (10) that is positioned at described interchanger (3) inside, the two ends of wherein said flue (10) are connected to described smoke inlet (I) and exhanst gas outlet (O), described smoke inlet (I) is connected in flue gas source (8) by flue gas input channel (4), described exhanst gas outlet (O) is connected in described suction fan (3) by flue gas output channel (5), described seawater inlet (P) is connected in source of seawater (9) by seawater input channel (6), and described seawer outlet (T) is connected in described sea water desalinating plant (1) by seawater output channel (7).
2. seawater desalination system according to claim 1 is characterized in that, described flue (10) forms curved shape.
3. seawater desalination system according to claim 1 is characterized in that, the outside surface of described flue gas input channel (4) is provided with thermal insulation layer.
4. seawater desalination system according to claim 1 is characterized in that, the outside surface of described seawater output channel (7) is provided with thermal insulation layer.
5. seawater desalination system according to claim 1 is characterized in that, the temperature of the flue gas in the described flue gas source (8) is 100 ℃～200 ℃.
6. seawater desalination system according to claim 1 is characterized in that, the flue gas in the described flue gas source (8) is flue gas or Steel Plant's discharged flue gas of boiler emission.
7. seawater desalination system according to claim 1 is characterized in that, the sea pressure in the described source of seawater (9) is 2MPa～3MPa.
8. seawater desalination system according to claim 1 is characterized in that, described sea water desalinating plant is low-temperature multi-effect seawater desalination device or distilling sea water desalter.
9. seawater desalination system according to claim 1 is characterized in that, described seawater input channel (6) is provided with flow control valve.
10. each described seawater desalination system in requiring according to aforesaid right is characterized in that described flue (10) is aluminum pipe or copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202128257U CN201834783U (en) | 2010-05-24 | 2010-05-24 | Desalination system for sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202128257U CN201834783U (en) | 2010-05-24 | 2010-05-24 | Desalination system for sea water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201834783U true CN201834783U (en) | 2011-05-18 |
Family
ID=44004885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202128257U Expired - Lifetime CN201834783U (en) | 2010-05-24 | 2010-05-24 | Desalination system for sea water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201834783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435212A (en) * | 2013-08-23 | 2013-12-11 | 首钢总公司 | Device and method for desalinating seawater by utilizing low-temperature waste heat in steel rolling |
| CN112978860A (en) * | 2021-04-20 | 2021-06-18 | 西安西热节能技术有限公司 | RO seawater desalination device inlet seawater heating system utilizing flue gas waste heat recovery |
-
2010
- 2010-05-24 CN CN2010202128257U patent/CN201834783U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435212A (en) * | 2013-08-23 | 2013-12-11 | 首钢总公司 | Device and method for desalinating seawater by utilizing low-temperature waste heat in steel rolling |
| CN103435212B (en) * | 2013-08-23 | 2014-12-24 | 首钢总公司 | Device and method for desalinating seawater by utilizing low-temperature waste heat in steel rolling |
| CN112978860A (en) * | 2021-04-20 | 2021-06-18 | 西安西热节能技术有限公司 | RO seawater desalination device inlet seawater heating system utilizing flue gas waste heat recovery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
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| CX01 | Expiry of patent term |