CN202849126U - Seawater desalination system utilizing diesel engine on island or ship - Google Patents
Seawater desalination system utilizing diesel engine on island or ship Download PDFInfo
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- CN202849126U CN202849126U CN2012204762922U CN201220476292U CN202849126U CN 202849126 U CN202849126 U CN 202849126U CN 2012204762922 U CN2012204762922 U CN 2012204762922U CN 201220476292 U CN201220476292 U CN 201220476292U CN 202849126 U CN202849126 U CN 202849126U
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- water
- pump
- membrane
- seawater
- hydrophobic microporous
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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
- Y02A20/131—Reverse-osmosis
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Abstract
The utility model discloses a seawater desalination system utilizing a diesel engine on an island or a ship. The system comprises the diesel engine as well as a raw water tank, a water pump, a film distilling assembly, a condensation pump and a water collecting tank which are connected with one another by pipes. The diesel engine generates power for the water pump and the condensation pump to operate. Power generation waste heat is used to heat seawater in the raw water tank. The water pump is arranged between the raw water tank and the film distilling assembly. The heated seawater is input from the raw water tank into the film distilling assembly with a hydrophobic microporous film, and then water vapor penetrates through the film after film distillation. The condensation pump is arranged between the water collecting tank and the film distilling assembly. The transmitted water vapor is condensed to fresh water under the effect of the condensation pump and conveyed to the water collecting tank to be stored. According to the seawater desalination system provided by the utility model, the generated power and the tail gas waste heat of the diesel engine are taken as an energy source for a film distilling process, so that the waste heat is adequately utilized, the energy consumption and the desalination cost in the process are low, and the system can provide drinkable fresh water for the island or the ship short of fresh water.
Description
Technical field
The utility model relates to the sea water desaltination field, relates in particular to a kind ofly to utilize efficiently diesel power generation and using waste heat from tail gas and membrane distillation process to combine the system that carries out water treatment under the less energy-consumption that is implemented in.
Background technology
Along with world population and economic develop rapidly, tellurian water resources presents day by day deficient trend, and water resources crisis becomes the important factor of restriction social development progress.The Freshwater resources that can directly use on the earth at present only account for 0.77% of all water resourcess, and seawater resources are very abundant on the earth, and more than 75% of the ball total area is taken up an area in the ocean.The life fresh water that can Gong drink of island or naval vessel do not have to(for) fresh water deficiency or the island proper desalinate to process having great importance to obtain the required Freshwater resources of daily life to seawater.
At present, method for desalting seawater commonly used mainly contains Re Fa and embrane method two large classes.Hot method mainly is by the mode of traditional heating distillation seawater to be desalinated processing, and energy consumption is larger in its process, and the environment heat effect is more serious, is replaced by embrane method gradually.In the embrane method sea water desaltination, reverse osmosis is the Membrane Separation for Water Treatment that present technical development is comparatively ripe, be most widely used, but reverse osmosis process needs higher external pressure, comparatively serious to the film pollution, and energy consumption is high.
Therefore, still needing in this area provides a kind of novel sea water desalinating plant, and simple to operate, energy consumption is low, is specially adapted on the island or the naval vessel carries out sea water desaltination to obtain adducible fresh water.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, and a kind of novel seawater desalination system is provided, and simple to operate, energy consumption is low.
The utility model provides a kind of seawater desalination system, comprises oil electric engine, and the pipe former tank, water pump, membrane distillation assembly, condensation pump and the water leg that connect, wherein,
The seawater that needs desalination is housed in the described former tank;
In the described membrane distillation assembly hydrophobic microporous membrane is housed;
Described water leg is used for splendid attire fresh water;
Described oil electric engine generating is for described water pump and the running of described condensation pump, and the waste heat of described oil electric engine generating is used for heating the seawater in the described former tank;
Described water pump is arranged between described former tank and the described membrane distillation assembly, seawater in the described former tank after the heating is input to the hot side that enters described hydrophobic microporous membrane in the described membrane distillation assembly, through membrane distillation, water vapor sees through the cold side that described hydrophobic microporous membrane enters into described hydrophobic microporous membrane;
Described condensation pump is arranged between described water leg and the described membrane distillation assembly, enters into the water vapor of described hydrophobic microporous membrane cold side under the effect of described condensation pump, is condensed into fresh water, is transported in the described water leg to store.
In another preference, described water pump is volumetric pump or vane pump.
In another preference, described hydrophobic microporous membrane is polypropylene polytetrafluoroethylcomposite composite micro porous film, polyvinylidene fluoride microporous film, microporous polypropylene membrane or microporous teflon membran.
In another preference, described membrane distillation assembly is board-like, rolling, tubular fibre formula or tubular type.
In another preference, the temperature that is input to the seawater of the hot side that enters described hydrophobic microporous membrane in the described membrane distillation assembly is 60-70 ℃.
In another preference, in described hydrophobic microporous membrane both sides, fluid flows in the cross-flow mode.
In another preference, in the hot side of described hydrophobic microporous membrane, have discharge outlet at described membrane distillation assembly, be connected with delivery pipe, the seawater that sees through described hydrophobic microporous membrane through discharge outlet by discharged.
The seawater desalination system that the utility model provides, diesel power generation and using waste heat from tail gas and membrane distillation process are carried out coupling carry out water treatment, adopt diesel power generation and using waste heat from tail gas as the energy derive of membrane distillation process, can take full advantage of used heat, realization utilizes the wasted energy consumption to carry out water treatment, the process energy consumption is low, desalinating cost is low, can obtain the fresh water of higher standard, can provide the fresh water that can drink for island or the naval vessel that lacks fresh water.
In should be understood that in the utility model scope, above-mentioned each technical characterictic of the present utility model and can making up mutually between specifically described each technical characterictic in below (eg embodiment), thus consist of new or preferred technical scheme.As space is limited, this tired stating no longer one by one.
Description of drawings
Fig. 1 is the structural representation of seawater desalination system of the present utility model.
Embodiment
Contriver of the present utility model is through extensively and in depth research, unexpected find that diesel power generation and using waste heat from tail gas and membrane distillation process are carried out coupling carries out brine disposal, not only can obtain the fresh water of higher standard, and can take full advantage of used heat, energy consumption is low, desalinating cost is low, is particluarly suitable for lacking carrying out sea water desaltination on the island of fresh water or the naval vessel and processing.On this basis, finished the utility model.
Membrane distillation
Membrane distillation (MD) is the membrane sepn process that membrane technique combines with still-process, and it is take dewatering microporous film as medium, and under the effect of film both sides vapour pressure deficit, volatile constituent sees through fenestra with vapor form in the feed liquid, thereby realizes the purpose of separation.
Particularly, one side of film directly contacts (being called hot side) with the pending solution of heat, opposite side contacts (being called cold side) with the cold aqueous solution directly or indirectly, vaporization enters cold side and is condensed into liquid phase by film volatile component at the face place in the hot side solution, other component tunicles are blocked in hot side, thereby realize separating.The temperature head of film both sides provides mass transfer required impellent.
Hydrophobic microporous membrane
Microporous membrane from structure will, in be cavernous structure.Usually, pore diameter range is 0.1 micron to 10 microns.Be divided into wetting ability and hydrophobicity.For membrane distillation, adopt hydrophobic microporous membrane, be selected from: polypropylene polytetrafluoroethylcomposite composite micro porous film, polyvinylidene fluoride microporous film, microporous polypropylene membrane, microporous teflon membran.
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only are used for explanation the utility model and are not used in the scope of the present utility model that limits.The experimental technique of unreceipted actual conditions in the following example is usually according to normal condition or the condition of advising according to manufacturer.
As shown in Figure 1, seawater desalination system of the present utility model comprises oil electric engine 1, and the pipe former tank 2, water pump 3, membrane distillation assembly 4, condensation pump 5 and the water leg 6 that connect, wherein,
The seawater that needs desalination is housed in the described former tank 2;
In the described membrane distillation assembly 4 hydrophobic microporous membrane 40 is housed;
Described water leg 6 is used for splendid attire fresh water;
Described oil electric engine 1 generating is for described water pump 3 and 5 runnings of described condensation pump, and the waste heat of described oil electric engine generating is used for heating the seawater in the described former tank 2;
Described water pump 3 is arranged between described former tank 2 and the described membrane distillation assembly 4, seawater in the described former tank 2 after the heating is input to the hot side 41 that enters described hydrophobic microporous membrane 40 in the described membrane distillation assembly 4, through membrane distillation, water vapor sees through the cold side 42 that described hydrophobic microporous membrane 40 enters into described hydrophobic microporous membrane 40;
Described condensation pump 5 is arranged between described water leg 6 and the described membrane distillation assembly 4, enters into the water vapor of described hydrophobic microporous membrane 40 cold sides under the effect of described condensation pump 5, is condensed into fresh water, is transported to described water leg 6 interior storages.
Described pipe connects and refers to connect by water pipe 9.
Seawater desalination system of the present utility model, described water pump 3 has no particular limits, can be used in any water pump that the seawater in the described former tank 2 after the heating is input in the described membrane distillation assembly 4 and all can be used in the system of the present utility model, as, water pump 3 is volumetric pump or vane pump.
Seawater desalination system of the present utility model, described hydrophobic microporous membrane 40 has no particular limits, can be used in any hydrophobic microporous membrane that the seawater after the heating is carried out membrane distillation all can be used in the system of the present utility model, preferably, described hydrophobic microporous membrane is polypropylene polytetrafluoroethylcomposite composite micro porous film, polyvinylidene fluoride microporous film, microporous polypropylene membrane or microporous teflon membran.
Seawater desalination system of the present utility model, the pattern of described membrane distillation assembly 4 has no particular limits, can be used in and the seawater after the heating is carried out the membrane distillation assembly that membrane distillation obtains any pattern of required fresh water all can be used in the system of the present utility model, as be board-like, rolling, tubular fibre formula or tubular type.
In another preference, the waste heat of described oil electric engine generating is used for the interior heating of seawater of will be described former tank 2 to 60-70 ℃, and correspondingly, the temperature that is input to the seawater of the hot side that enters described hydrophobic microporous membrane in the described membrane distillation assembly is 60-70 ℃.
In another preference, in described hydrophobic microporous membrane both sides, fluid flows in the cross-flow mode, and the water vapor that the temperature that namely is derived from former tank 2 is preferably 60-70 ℃ seawater and sees through film is to flow in the cross-flow mode.
In addition, seawater desalination system of the present utility model in the hot side of described hydrophobic microporous membrane, has discharge outlet at described membrane distillation assembly, is connected with delivery pipe, the seawater that sees through described hydrophobic microporous membrane through discharge outlet by discharged.Can directly be discharged into marinely greatly, also can adopt extra water leg to collect.
Unless otherwise defined, the same meaning that employed all specialties and scientific words and one skilled in the art are familiar with in the literary composition.In addition, any method similar or impartial to described content and material all can be applicable in the utility model method.The usefulness that better implementation method described in the literary composition and material only present a demonstration.
All quote in this application as a reference at all documents that the utility model is mentioned, just as each piece document is quoted separately as a reference.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after having read above-mentioned teachings of the present utility model, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (7)
1. a seawater desalination system is characterized in that, described system comprises oil electric engine, and the pipe former tank, water pump, membrane distillation assembly, condensation pump and the water leg that connect, wherein,
The seawater that needs desalination is housed in the described former tank;
In the described membrane distillation assembly hydrophobic microporous membrane is housed;
Described water leg is used for splendid attire fresh water;
Described oil electric engine generating is for described water pump and the running of described condensation pump, and the waste heat of described oil electric engine generating is used for heating the seawater in the described former tank;
Described water pump is arranged between described former tank and the described membrane distillation assembly, seawater in the described former tank after the heating is input to the hot side that enters described hydrophobic microporous membrane in the described membrane distillation assembly, through membrane distillation, water vapor sees through the cold side that described hydrophobic microporous membrane enters into described hydrophobic microporous membrane;
Described condensation pump is arranged between described water leg and the described membrane distillation assembly, enters into the water vapor of described hydrophobic microporous membrane cold side under the effect of described condensation pump, is condensed into fresh water, is transported in the described water leg to store.
2. the system as claimed in claim 1 is characterized in that, described water pump is volumetric pump or vane pump.
3. the system as claimed in claim 1 is characterized in that, described hydrophobic microporous membrane is polyvinylidene fluoride microporous film, microporous polypropylene membrane or microporous teflon membran.
4. the system as claimed in claim 1 is characterized in that, described membrane distillation assembly is board-like, rolling, tubular fibre formula or tubular type.
5. the system as claimed in claim 1 is characterized in that, the temperature that is input to the seawater of the hot side that enters described hydrophobic microporous membrane in the described membrane distillation assembly is 60-70 ℃.
6. the system as claimed in claim 1 is characterized in that, in described hydrophobic microporous membrane both sides, fluid flows in the cross-flow mode.
7. the system as claimed in claim 1 is characterized in that, in the hot side of described hydrophobic microporous membrane, has discharge outlet at described membrane distillation assembly, is connected with delivery pipe, the seawater that sees through described hydrophobic microporous membrane through discharge outlet by discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204762922U CN202849126U (en) | 2012-09-18 | 2012-09-18 | Seawater desalination system utilizing diesel engine on island or ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204762922U CN202849126U (en) | 2012-09-18 | 2012-09-18 | Seawater desalination system utilizing diesel engine on island or ship |
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| CN202849126U true CN202849126U (en) | 2013-04-03 |
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| CN2012204762922U Expired - Lifetime CN202849126U (en) | 2012-09-18 | 2012-09-18 | Seawater desalination system utilizing diesel engine on island or ship |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3018104A1 (en) * | 2014-08-13 | 2016-05-11 | Doosan Heavy Industries & Construction Co., Ltd. | Ballast water treatment apparatus and method for ship using forward osmosis process |
| CN107555540A (en) * | 2017-08-23 | 2018-01-09 | 河海大学 | A kind of film distilling seawater desalination device |
| CN109942137A (en) * | 2019-04-22 | 2019-06-28 | 山东大学 | The co-feeding system of waste heat driving ammonia absorption type cooling couple film distilling seawater desalination peculiar to vessel |
| US20230109836A1 (en) * | 2021-10-12 | 2023-04-13 | Dongguan University Of Technology | Distributed energy source system utilizing waste heat deeply |
-
2012
- 2012-09-18 CN CN2012204762922U patent/CN202849126U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3018104A1 (en) * | 2014-08-13 | 2016-05-11 | Doosan Heavy Industries & Construction Co., Ltd. | Ballast water treatment apparatus and method for ship using forward osmosis process |
| US10040533B2 (en) | 2014-08-13 | 2018-08-07 | Doosan Heavy Industries & Construction Co., Ltd. | Ballast water treatment apparatus and method for ship using forward osmosis process |
| CN107555540A (en) * | 2017-08-23 | 2018-01-09 | 河海大学 | A kind of film distilling seawater desalination device |
| CN109942137A (en) * | 2019-04-22 | 2019-06-28 | 山东大学 | The co-feeding system of waste heat driving ammonia absorption type cooling couple film distilling seawater desalination peculiar to vessel |
| CN109942137B (en) * | 2019-04-22 | 2021-01-08 | 山东大学 | Combined supply system for seawater desalination by ammonia absorption refrigeration coupling membrane distillation driven by marine waste heat |
| US20230109836A1 (en) * | 2021-10-12 | 2023-04-13 | Dongguan University Of Technology | Distributed energy source system utilizing waste heat deeply |
| US11802058B2 (en) * | 2021-10-12 | 2023-10-31 | Dongguan University Of Technology | Distributed energy source system utilizing waste heat deeply |
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Granted publication date: 20130403 |