CN101251092A - Method and apparatus for reheating ocean temperature differential power work medium and homogenesis cooling - Google Patents
Method and apparatus for reheating ocean temperature differential power work medium and homogenesis cooling Download PDFInfo
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- CN101251092A CN101251092A CNA2008100109600A CN200810010960A CN101251092A CN 101251092 A CN101251092 A CN 101251092A CN A2008100109600 A CNA2008100109600 A CN A2008100109600A CN 200810010960 A CN200810010960 A CN 200810010960A CN 101251092 A CN101251092 A CN 101251092A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
- F03G7/05—Ocean thermal energy conversion, i.e. OTEC
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The invention relates to the ocean temperature differential power generation field, in particular to a method for secondary heating of working medium, a method for deep sea water cooling of refrigerant medium and a method for homogenous cooling of working medium as well as a device for implementing the methods. The kind of methods better solve the problems of electrical energy consumption and overlarge occupation space caused by the necessary plentiful extraction of surface high-temperature seawater and deep cold seawater when ocean temperature differential power generation heats and cools working medium, can increase the effective temperature difference, improve the working efficiency and decrease the power generation cost. The technical proposal of the invention is that: refrigerant medium is added, made water cooling in the deep cold seawater, refluxed to the working site, then made evaporation gasification, and then directly mixed with steam medium after the work, the temperature of the steam medium after the work is decreased, and a secondary heating is made to the working medium by taking advantage of the heat obtained after the cooling when the medium is made pressurized liquefaction. The invention designs a heat exchange device for the technical proposal, and the heat exchange device comprises a heat exchanger, a heat exchanger box, a U-shaped tube, a supporting frame, and an improved evaporator and so on.
Description
(1). technical field
The present invention relates to the ocean temperature differential power field, particularly relate to the method for working medium double heating, method and the method that the working medium homogeneity is cooled off and the device of implementing all methods of refrigerant medium deep-sea water-cooled.
(2). background technique
Existing ocean temperature differential power ship and other continental rise utilize the facility of ocean temperature differential power, except that possess the thermal power generation pattern the link of routine running of the gas-turbine that must possess and generator, the main employing makes its boil-off gas turn to steam medium with top layer high temperature seawater heating liquid working medium, method with the steam medium after the deep layer Mare Frigoris water cooling work, reach and keep the temperature difference and the pressure difference of gas-turbine two ends working medium, thereby form the power source of generating work.The lower boiling liquid substance of the general employing of its working medium is as propane, freon, liquefied ammonia etc.The method of the working medium heating and cooling that background technique adopted, be in heat exchanger, to heat with water-cooled respectively to working medium to extract top layer high temperature seawater and the deep layer Mare Frigoris water below 500 meters, the thermal efficiency ratio of this heating and water-cooling method is lower, can be less for the temperature difference of utilizing, the heat exchanger that needs special substance, and need expend than macro-energy, the space that the required seawater of its heating and cooling occupies is also very huge, cause equipment investment huge, causing can be too high for the cost per unit of output electric weight, is worth thereby lost due commercial exploitation.
(3). summary of the invention
At prior art, inefficiency and the temperature difference problem of smaller that can supply to utilize when extraction top layer high temperature seawater and deep layer Mare Frigoris water carry out heating and cooling to working medium, the invention provides a covering device, can realize the method for the homogeneity cooling of the deep-sea water-cooled of the double heating of working medium and liquid coolant medium and working medium on this basis, can effectively enlarge can be for the temperature range that utilizes, the method that replaces extracting seawater working medium to be carried out heating and cooling, improve cooling effectiveness, reduce energy consumption and equipment investment, and can keep the original temperature difference condition of seawater to greatest extent.
Technological scheme of the present invention realizes as follows: add the material identical with working medium as the refrigerant medium, the refrigerant medium that is promptly added is that identical Chemical composition with the working medium physical property is also on all four with a kind of material, and the adding proportion of refrigerant medium and working medium is 0.05～1: 1.Pressurized liquefied refrigerant medium is carried out the deep-sea water-cooled and band pushes back and flow to the place of working, the heat by steam medium after the absorption work evaporates gasification, and directly mixes with vapor medium after the work, finishes cooling to steam medium after working with this.Be forced in the cylinder that is drawn into COMPRESSOR UNIT that it is poor that mixed vapor medium is stressed and be overheated saturated vapor state, after cooling off, recover liquid condition, and, enter next work cycle by former proportional working medium and the refrigerant medium of being reclassified as.
The above-mentioned cooling procedure that is the mixed medium of overheated saturated vapor state, while is as the post bake process of working medium, the two is that carrier carries out heat exchange with fresh water or cold oil, realizes and finish the cooling of mixed medium and the post bake process of working medium by this way.
Implement the device of said method, it comprises heat exchanger, heat exchange case, U type pipe, supporting frame and improved vaporizer.Heat exchanger is made up of casing and two-layer heat exchanging tube, the inlet of lower floor's heat exchanging tube links with the outlet of two groups of COMPRESSOR UNIT respectively, outlet links with the inlet of vaporizer and U type pipe respectively, the inlet hole of upper strata heat exchanging tube and the air outlet hole of vaporizer link, and the inlet hole of air outlet hole and gas-turbine links.The cavity of heat exchange case is flat oval type, the inlet hole of air outlet hole and aerostatic press links, the air outlet hole of inlet hole and gas-turbine links, and cavity is an air mixing chamber, the content gasification room, gasification room is the oval type cavity, throttling arrangement is equipped with in the ingress, plays the decompression and expansion effect, links with the outlet of U type pipe, the outlet of gasification room is bell mouth shape, is opened on air mixing chamber.Heat exchange case is liquid coolant medium evaporation gasification and the device that mixes cooling with the vapor medium after the work.U type pipe is the transfer conduit and the cooling unit of liquid coolant medium deep-sea water-cooled, and its entrance and exit links with the outlet of heat exchanger lower floor heat exchanging tube and the inlet of heat exchange case respectively.Pipeline vertically extends to (with land and island is the power station of carrier, and tiltable probes in the deep sea water) in the deep-sea, and the water cooling plant that the bottom is formed for the hot channel that is the parallel reciprocal arrangement of 180 degree by one group of metal tube can be fixed on the platform of supporting frame.Supporting frame is a steel structure support, hull is fixed in the upper end, vertically extend in the deep-sea, last horizontalization platform is used for fixing U type pipe, the platform bottom surface connects the anchor body with chain and can play the longitudinal stability hull and prevent that hull from laterally moving excessive effect, supporting frame extends downward the seabed and is fixed in the seabed with construction process, is another embodiment of the present invention---a kind of form of ocean temperature differential power.
The present invention is owing to adopted said method and the device of all methods of enforcement, can increase considerably effective temperature difference, with propane is example, if the ratio of refrigerant medium and working medium is 1: 1, by post bake process and homogeneity cooling procedure, the work temperature difference of working medium can reach more than 80 ℃ even 100 ℃, and need not special heat exchanger, reliable effect in view of double heating, can be with a heater---vaporizer moves in the top layer high temperature seawater around the hull, so need not again working medium to be heated and water-cooled in the mode of seawater, can increase substantially heat exchange efficiency and working efficiency, under the identical situation of electric motor power, 1～2 times of output can increase electric power, reduce hull gross tonnage 80～90%, reduce equipment investment 60～95%, if adopt the mechanical energy of gas-turbine during proper functioning, the work of drive aerostatic press, also can reduce the electric motor power of respective numbers, still can reduce equipment investment 2～5%, perhaps under the constant situation of electric motor power, raising can power supply power output 20～40%.
(4). description of drawings
Fig. 1 is the technological process circuti diagram at ocean temperature differential power ship and/or ocean temperature differential power station.
Among the figure, 1. be generator, 2. for gas-turbine, 3. for vaporizer, 4. for COMPRESSOR UNIT, 5. for heat exchange case, 6. for U type pipe, 7. for heat exchanger, because hull and supporting frame belong to the non-functional device in this manufacturing process, so do not include this figure.1,2,4 and hull belong to the equipment of prior art; 5,6,7 and supporting frame belong to the custom-designed device of the present invention.The 3rd, the vaporizer after the present invention improves.Be closed type by 2～7 pipeline and the devices of forming for medium circulation and work.
Fig. 2 is a heat exchange case structural drawing of the present invention.
Fig. 3 is a U type duct ligation composition of the present invention.
The bottom of U type pipe is a radiator, and also there is heat sinking function in the pipeline that its entry end gos deep in the seawater, then must take heat insulation measures by radiator to outlet end, prevents that the liquid coolant medium from absorbing heat and influencing cooling effect in the process that refluxes.
Fig. 4 is support frame structure figure of the present invention.
Fig. 5 is heat exchanger structure figure of the present invention.
Fig. 6 is the evaporation structure figure after the present invention improves.Vaporizer of the prior art is the plate type heat exchanger of being manufactured by the titanium plate, is installed within the ship storehouse or the working site in land and power station, island, need be drawn into high temperature seawater on the ship or the working site, land could be used.Vaporizer after the improvement adopts cheap material to manufacture, as steel plate and steel pipe.Be arranged in hull surface seawater on every side,, be fixed on the carriage in the following weld brackets of hull water line.
(5). embodiment
1. the method for a refrigerant medium deep-sea water-cooled, the purpose of enforcement extracts the method for deep layer Mare Frigoris water for substituting in the prior art, the steps include: that (1) adopt the material identical with working medium as the refrigerant medium; (2) the refrigerant medium is pressurized liquefied; (3) the liquid coolant medium is injected U type pipe shown in Figure 3, transfer in the radiator in the deep layer Mare Frigoris water and carry out water-cooled, and raise the ingress of the gasification room that is back to heat exchange case shown in Figure 2 by fluid pressure.
2. the method for working medium homogeneity cooling, the purpose of implementing is for substituting in the prior art, with the method for Mare Frigoris water to the back vapor medium water-cooled of working, the steps include: that (1) enters the gasification room volume-expanding pressure-reducing by the liquid coolant medium that method 1 is back to the gasification room ingress through throttling arrangement shown in Figure 2, and the heat in the gasification room inwall absorbs air mixing chamber and boil-off gas turns to steam refrigerant medium; (2) heat of vapor medium after the direct blended absorbent work of vapor medium of steam refrigerant medium after the gasification room outlet enters air mixing chamber and works; (3) finish the control that the cooled mixed vapour medium of homogeneity is subjected to the caliber and the valve of pipeline, by former proportional refrigerant medium and the working medium of being reclassified as, poor attraction is stressed, enter respectively in the cylinder of two groups of COMPRESSOR UNIT, refrigerant medium and working medium are forced into overheated saturated vapor state by aerostatic press.
3. the method for a working medium double heating, the heat that the purpose of implementing is produced when effectively utilizing the pressurization of mixed vapour medium the steps include: that (1) import the overheated saturated vapor medium of the step (3) of method 2 respectively the cooling of liquefying in the heat exchanging tube of heat exchanger lower floor shown in Figure 5; (2) meanwhile will finish the working medium steam that evaporates gasification by vaporizer and be delivered in the heat exchanging tube on heat exchanger upper strata, the heat that is distributed by overheated saturated refrigerant medium and the working medium of the fresh water carrier absorption in the heat exchanger carries out double heating; (3) the working medium steam of finishing double heating enters gas-turbine work, and liquid-working-medium and the liquid coolant medium of finishing liquefaction enter respectively in vaporizer and the U type pipe, enter next work cycle separately.
May there be the incomplete problem of liquefaction in overheated saturated vapor medium through the heat exchanger cooling, it can be sent into and carry out the secondary cooling in the seawater, to reach the purpose of liquefaction fully.If compression of pressurized liquefied process need twin-stage or multistage compression then double heating are also adjusted thereupon.
Referring to Fig. 2～Fig. 6, the device of implementation methods 1, method 2, method 3 comprises heat exchange case, U type pipe, heat exchanger and through the improved vaporizer of the present invention.Heat exchange case, see Fig. 2, cavity is flat oval type, its air inlet/outlet links with gas-turbine, COMPRESSOR UNIT respectively, 1 of Fig. 2 is that the throttling arrangement, 2 of gasification room ingress is that gasification room, 3 is air mixing chamber, and the inlet of gasification room and U type pipe link, and outlet is bell mouth shape, being opened on air mixing chamber, is the carrier of finishing liquid coolant medium evaporation gasification and carrying out the homogeneity cooling with work back vapor medium.U type pipe is seen Fig. 3, is the device and the transfer conduit of liquid coolant medium deep-sea water-cooled, and because of its basic symmetry and tape loop and be similar to the U type, so be referred to as U type pipe, its entrance and exit links with heat exchanger and heat exchange case respectively.Supporting frame is seen Fig. 4, for the ocean temperature differential power ship, belongs to the non-functional device, and making and installation difficulty are very big, and the ocean temperature differential power ship should avoid adopting this device as far as possible.Heat exchanger, see Fig. 5, condensation device for working medium and refrigerant medium, it also is the second heating apparatus of working medium steam, heat exchanger is made of casing and jaw elements, and the pipeline that connects lower floor is the sink of overheated saturated vapor, and the pipeline that connects the upper strata is the heating device of working medium steam double heating, splendid attire fresh water or cold oil in the casing are as the carrier of cooling and heating.Through the improved vaporizer of the present invention, see Fig. 6, make by the steel plate welding, the centre is hollow cavity, working medium turns to vapor medium in the heat dilatation boil-off gas that inwall absorbs high temperature seawater for liquid, and import is positioned at the below, and air outlet hole is positioned at topmost, be fixed on the carriage of hull water line below, also can play the effect of stablizing hull.
All methods of the present invention are not only applicable to the ocean temperature differential power ship, are applicable to that also with land, island and submarine platform be the ocean temperature differential power of carrier and the power station that utilizes other less thermo-electric generation.
Claims (7)
1. the method for an ocean temperature differential power liquid coolant medium deep-sea water-cooled, it is characterized in that: add the material identical as the refrigerant medium with working medium, it is carried out water-cooled in U type pipe transfers to radiator in the deep layer Mare Frigoris water, and raise the ingress of the gasification room that is back to heat exchange case by fluid pressure.
2. the method for ocean temperature differential power working medium homogeneity cooling, it is characterized in that: according to the described liquid coolant medium that is back to the gasification room ingress of claim 1, enter the gasification room volume-expanding pressure-reducing through throttling arrangement, heat in the gasification room inwall absorbs air mixing chamber and boil-off gas turns to steam refrigerant medium, vapor medium directly mixes and finishes homogeneity and cool off after the gasification room outlet enters air mixing chamber and works, finishing the cooled mixed vapour medium of homogeneity controlled by the caliber of pipeline and valve, by former proportional refrigerant medium and the working medium of being reclassified as, poor attraction is stressed, enter respectively in the cylinder of two groups of COMPRESSOR UNIT, refrigerant medium and working medium are forced into overheated saturated vapor state by aerostatic press.
3. the method for a working medium double heating, it is characterized in that: enter the cooling of liquefying in the heat exchanging tube of heat exchanger lower floor respectively according to the described overheated saturated vapor of claim 2, to finish the working medium steam that evaporates gasification by vaporizer simultaneously also is delivered in the heat exchanging tube on heat exchanger upper strata, the three is that carrier carries out heat exchange with fresh water or cold oil, the working medium steam of finishing double heating enters gas-turbine work, liquid-working-medium and the liquid coolant medium of finishing liquefaction enter respectively in vaporizer and the U type pipe, enter next work cycle separately.
4. be characterised in that according to the described refrigerant medium of claim 1: the refrigerant medium that is added is that identical chemical composition with the working medium physical property is also on all four with a kind of material, and the adding proportion of refrigerant medium and working medium is 0.05～1: 1.
5. according to the cooling liquid of the described overheated saturated vapor of claim 3,, then need be introduced into and carry out the secondary cooling in the seawater, until liquefaction fully if the cooling procedure in the heat exchanger can not make it liquefy fully.
6. according to claim 1, the method of the method for the liquid coolant medium deep-sea water-cooled of claim 2 and the described ocean temperature differential power of claim 3 and the cooling of working medium homogeneity and the method for working medium double heating, required device comprises U type pipe, heat exchange case, heat exchanger and the vaporizer after the present invention improves, it is characterized in that: (1) U type pipe is the cylinder structure of basic symmetry in both sides and tape loop, the bottom is the water cooling plant that 180 hot channels of spending parallel reciprocal arrangement are formed by one group of thin caliber metal tubes, be erected in that (with land or island is the ocean temperature differential power station of carrier between hull and the deep-sea, tiltable is placed), the heat discharge of vapor medium is in deep layer Mare Frigoris water after the work that the liquid coolant medium is absorbed; (2) cavity of heat exchange case is flat oval type, air inlet/outlet links with gas-turbine and aerostatic press respectively, cavity is an air mixing chamber, the content gasification room, gasification room is oval type, and throttling arrangement is equipped with in the ingress, link with U type pipe, outlet is bell mouth shape, is opened on air mixing chamber, is steam raising of liquid coolant medium and the device that mixes cooling with work back vapor medium; (3) heat exchanger is made up of casing and two-layer heat exchanging tube, runs through two cooling units that heat exchanging tube is overheated saturated vapor of casing lower floor, and the upper strata heat exchanging tube is the second heating apparatus of working medium steam; (4) form by sheet metal weldering system through the improved vaporizer of the present invention, in the following weld brackets of hull outside water line, be fixed with carriage on, when liquid-working-medium evaporate when gasifying, directly absorb the heat of high temperature seawater by cavity inner wall in its cavity.
7. according to the described heat exchanger of claim 6 and vaporizer and U type pipe, it is characterized in that: because the method for the liquid coolant medium deep-sea water-cooling method of claim 1, claim 2, the described ocean temperature differential power of claim 3, the cooling of working medium homogeneity and double heating is all safe reliable, so heat exchanger, vaporizer and U type Guan Junke are manufactured by cheap material, as adopt steel plate and/or steel pipe weldering system, the influence of heat exchanging effect is little.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100109600A CN101251092A (en) | 2008-04-09 | 2008-04-09 | Method and apparatus for reheating ocean temperature differential power work medium and homogenesis cooling |
| PCT/CN2009/000306 WO2009124456A1 (en) | 2008-04-09 | 2009-03-23 | Method and device for generating power by using temperature difference of sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100109600A CN101251092A (en) | 2008-04-09 | 2008-04-09 | Method and apparatus for reheating ocean temperature differential power work medium and homogenesis cooling |
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| Publication Number | Publication Date |
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| CN101251092A true CN101251092A (en) | 2008-08-27 |
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| CNA2008100109600A Pending CN101251092A (en) | 2008-04-09 | 2008-04-09 | Method and apparatus for reheating ocean temperature differential power work medium and homogenesis cooling |
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| CN (1) | CN101251092A (en) |
| WO (1) | WO2009124456A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124456A1 (en) * | 2008-04-09 | 2009-10-15 | Gan Yuxiang | Method and device for generating power by using temperature difference of sea water |
| CN106438242A (en) * | 2016-12-25 | 2017-02-22 | 上海空泰能源科技有限公司 | Hydraulicpower generation system utilizing ocean thermal energy conversion |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0044295A1 (en) * | 1980-01-28 | 1982-01-27 | HUMISTON, Gerald F. | Closed heat pump system producing electrical power |
| US4537030A (en) * | 1982-12-03 | 1985-08-27 | Daniel Berman | Ocean thermal energy system |
| GB2395754B (en) * | 2002-11-29 | 2006-04-12 | Dominic Michaelis | Ocean thermal energy conversion condenser |
| CN1297744C (en) * | 2005-03-24 | 2007-01-31 | 上海交通大学 | Ocean temperature difference energy and solar energy reheat circulating electric generating method |
| US20070289303A1 (en) * | 2006-06-15 | 2007-12-20 | Prueitt Melvin L | Heat transfer for ocean thermal energy conversion |
| CN101251092A (en) * | 2008-04-09 | 2008-08-27 | 甘玉祥 | Method and apparatus for reheating ocean temperature differential power work medium and homogenesis cooling |
-
2008
- 2008-04-09 CN CNA2008100109600A patent/CN101251092A/en active Pending
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2009
- 2009-03-23 WO PCT/CN2009/000306 patent/WO2009124456A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124456A1 (en) * | 2008-04-09 | 2009-10-15 | Gan Yuxiang | Method and device for generating power by using temperature difference of sea water |
| CN106438242A (en) * | 2016-12-25 | 2017-02-22 | 上海空泰能源科技有限公司 | Hydraulicpower generation system utilizing ocean thermal energy conversion |
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| Publication number | Publication date |
|---|---|
| WO2009124456A1 (en) | 2009-10-15 |
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Open date: 20080827 |