CN105019959A - Overlapping type organic Rankine cycle system - Google Patents
Overlapping type organic Rankine cycle system Download PDFInfo
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- CN105019959A CN105019959A CN201510452943.2A CN201510452943A CN105019959A CN 105019959 A CN105019959 A CN 105019959A CN 201510452943 A CN201510452943 A CN 201510452943A CN 105019959 A CN105019959 A CN 105019959A
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
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- ADANNTOYRVPQLJ-UHFFFAOYSA-N [dimethyl(trimethylsilyloxy)silyl]oxy-[[dimethyl(trimethylsilyloxy)silyl]oxy-dimethylsilyl]oxy-dimethylsilane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C ADANNTOYRVPQLJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000001273 butane Substances 0.000 claims description 3
- JJRDHFIVAPVZJN-UHFFFAOYSA-N cyclotrisiloxane Chemical compound O1[SiH2]O[SiH2]O[SiH2]1 JJRDHFIVAPVZJN-UHFFFAOYSA-N 0.000 claims description 3
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- -1 freon Chemical compound 0.000 claims description 3
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 claims description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 3
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 claims description 3
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Abstract
The invention relates to an overlapping type organic Rankine cycle system, and belongs to the technical field of energy and environment. The overlapping type organic Rankine cycle system comprises a combustion and conduction oil circulation system, a high-temperature-level organic Rankine cycle system, a low-temperature-level organic Rankine cycle system and a cooling water circulation system. A conduction oil outlet in a conduction oil chain grate furnace of the combustion and conduction oil circulation system is connected with an evaporator of the high-temperature-level organic Rankine cycle system and provides heat sources for steam working substances in the evaporator, and therefore a motor of the high-temperature-level organic Rankine cycle system can generate electricity. Low-temperature working substances in the low-temperature-level organic Rankine cycle system absorb heat released when high-temperature working substances are changed to liquid and then become low-temperature working substance steam to enable a motor to generate electricity. A cooling water outlet of a cooling tower of the cooling water circulation system is connected with a condenser through a cooling water pump. The overlapping type organic Rankine cycle system effectively utilizes energy of biomass fuel, and double-level organic Rankine cycle is adopted by the system, so that the efficiency is improved while gradient utilization of energy is achieved.
Description
Technical field
The present invention relates to a kind of superposition type organic rankine cycle system, belong to energy and environment technical field.
Background technique
Population increase the sustainable growth causing energy demand with industrialized fast development rapidly.Solve energy shortage problem and become a global difficult problem.At present, the energy is mainly from coal, oil, rock gas etc., and these energy are being on the verge of exhaustion, also result in serious environmental pollution simultaneously.As everyone knows, combusts fossil so expects that the sulfur dioxide discharged is the main cause causing acid rain, and the carbon dioxide of discharge is the main cause causing global warming.Therefore a kind of cheapness, renewable and do not cause the energy of environmental pollution to be the unique selection that the mankind must face is found.
Living beings as a kind of " zero-emission ", renewable, widely distributed, type of service is various, resourceful renewable energy sources, occupies very consequence at current energy field.China is populous agricultural country, biomass resource occupies considerable status in the energy resource structure of China, it mainly comprises the solid waste that combustible component is contained in agricultural and Foresty industry waste, livestock breeding industry ight soil and city, according to estimates China rural area only the straw amount of abandoning just reach 700,000,000 tons (calorific value be about 10.2 × 10
15kJ), (calorific value is about 3.1 × 10 to nearly 200,000,000 tons of Foresty industry waste
15kJ), the agricultural wastes such as a large amount of straw, stalk are still had.Recycled if these wastes are unreasonable, just can be become the harmful matter of befouling environment.Agricultural and Foresty industry living beings need to absorb CO in growing process
2carry out photosynthesis, the using energy source of this biolobic material and conversion system can not cause CO in earth atmosphere
2therefore the increase of total amount is the beneficial way of energy saving and protection of the environment compared with good utilisation biomass energy.
Compared with water/water vapor Rankine cycle, ORC technology has the advantage that efficiency is high, electric motor power scope is wide, operating cost is low and operation strategies is wide; Chain furnace has low cost of manufacture, and structure is simple, flameholding, safe and reliable to operation, automaticity advantages of higher.Fuel-burning equipment of the present invention adopts biological substance shaped granule fuel chain furnace as the driving heat source of power circulation system.Organic Rankine bottoming cycle is owing to have employed low boiling organic working medium, it has the higher thermal efficiency in energy recovery performance compared with traditional water/water vapor organic Rankine bottoming cycle, equipment is also more simple, effectively process biomass castoff, the energy effective utilization simultaneously it had, be expected to become solve and centrally connected power supply or the not enough area of power supply should not provide electric power, as mountain area, pastoral area, fragmentary island, farmers' of living scattered, remote geological park, the military base etc. high to power supply safety requirement to some.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the invention provides a kind of superposition type organic rankine cycle system.The energy efficient that biomass fuel has by this system uses, and this system adopts twin-stage organic Rankine bottoming cycle simultaneously, and raise the efficiency while achieving the cascade utilization of energy, the present invention is achieved through the following technical solutions.
A kind of superposition type organic rankine cycle system, this system comprises burning and Heat-conduction oil circulation system, high-temperature level organic rankine cycle system, low-temperature level organic rankine cycle system and cooling water recirculation system;
Described burning and Heat-conduction oil circulation system comprise smoke exhaust fan 1, chimney 2, gas fan 3, air preheater 4, biomass heat-conduction oil chain furnace 5, conduction oil preheater 6 and connecting tube, combustion air outlet in gas fan 3 connects air preheater 4, conduction oil chain furnace 5 successively, conduction oil chain furnace 5 connects conduction oil preheater 6 filler opening, and conduction oil chain furnace 5 smoke outlet connects conduction oil preheater 6, air preheater 4, smoke exhaust fan 1 and chimney 2 successively;
Described high-temperature level organic rankine cycle system comprises vaporizer 7, preheater 8, high-temperature level turbine 9, generator I 10, high-temperature level regenerator 11, condenser/evaporator 19, high-temperature level working medium compression pump 20 and connecting tube, conduction oil outlet in conduction oil chain furnace 5 connects vaporizer 7, vaporizer 7 turns back in conduction oil preheater 6 by heat conduction oil circulating pump 21 after the conduction oil outlet of heat release connects preheater 8, steam working medium in vaporizer 7 connects high-temperature level turbine 9, high-temperature level turbine 9 connects generator I 10, the weary gas outlet of high-temperature level turbine 9 connects high-temperature level regenerator 11, condenser/evaporator 19, the acting of high-temperature level turbine 9 part connects high-temperature level working medium compression pump 20, liquid working substance outlet in condenser/evaporator 19 connects preheater 8 and vaporizer 7 successively by high-temperature level working medium compression pump 20,
Described low-temperature level organic rankine cycle system comprises low-temperature level turbine 12, generator II 13, coagulator 16, low-temperature level working medium compression pump 17 and low-temperature level regenerator 18, the Low Temperature Steam sender property outlet of condenser/evaporator 19 connects low-temperature level turbine 12, generator II 13 successively, low-temperature level turbine 12 part merit connects low-temperature level working medium compression pump 17, low-temperature level turbine 12 exhaust steam outlet connects low-temperature level regenerator 18, coagulator 16 successively, and coagulator 16 cryogenic liquid working connects low-temperature level regenerator 18 and condenser/evaporator 19 successively by low-temperature level working medium compression pump 17;
Described cooling water recirculation system comprises cooling tower 14, cooling waterpump 15 and connecting tube, and cooling tower 14 coolant outlet connects coagulator 16 by cooling waterpump 15.
In described high-temperature level organic rankine cycle system cycle fluid adopt HMDO, prestox cyclotrisiloxane, octamethylcy-clotetrasiloxane, decamethyl penta siloxane, tetradecamethylhexasiloxane, benzene, toluene, ethylbenzene, n-proplbenzene, butylbenzene, the mixed solution of a kind of pure refrigerant or wherein any two kinds and above working medium composition in cyclohexane.
Adopt the mixed solution of a kind of pure refrigerant in pentafluoropropane (R245fa), freon (R123), propane (R290), HFC-134a (R134a), R143a, butane or wherein two kinds of arbitrary proportions and above working medium composition in described low-temperature level organic rankine cycle system, and add Cu-Al2O3 mix nanoparticles and form nanometer cycle fluid.
Described air preheater 4, conduction oil preheater 6, vaporizer 7, preheater 8, high-temperature level regenerator 11, coagulator 16, low-temperature level regenerator 16 and condenser/evaporator 19 all adopt plate type heat exchanger.
The working principle of this system is:
1, burning and Heat-conduction oil circulation system: after combustion air is pressurized in gas fan 3, through air preheater 4 preheating, send into biomass heat-conduction oil chain furnace 5, then the heat that conduction oil in conduction oil preheater 6 enters into biomass heat-conduction oil chain furnace 5 organism-absorbing matter fuel combustion release enters into vaporizer 7 successively and heats organic working medium and form steam, preheating organic working medium in preheater 8, conduction oil after cooling is come back in conduction oil preheater 6 by heat conduction oil circulating pump 21 and completes circulation, discharged by smoke exhaust fan 1 after conduction oil in the smoke pre-heating conduction oil preheater 6 of biomass heat-conduction oil chain furnace 5 generation simultaneously,
2, high-temperature level organic rankine cycle system: heat in vaporizer 7 after organic working medium forms steam and flow into expansion work in high-temperature level turbine 9, high-temperature level turbine 9 exports shaft work, part drive electrical generators I 10 rotates generating, another part drives high-temperature level working medium compression pump 20 pressurized high-temperature level organic working medium, from high-temperature level turbine 9 out after exhaust steam enter the preheating of high-temperature level regenerator 11 release heat from high-temperature level working medium compression pump 20 organic working medium out, then enter condenser/evaporator 19 and be condensed into liquid, then out entering after the pressurization of high-temperature level working medium compression pump 20 afterwards from condenser/evaporator 19 to enter after preheater 8 absorbs the heat of conduction oil after heat that high-temperature level regenerator 11 absorbs exhaust steam heats up, entering vaporizer 7 makes organic working medium become the steam that can do work, complete high-temperature level circulation,
3, low-temperature level organic rankine cycle system: the low-temperature level organic working medium steam absorbing the heat of high-temperature level organic working medium in condenser/evaporator 19 enters low-temperature level turbine 12 expansion work, low-temperature level turbine 12 exports shaft work, part drive electrical generators II 13 rotates generating, another part drives low-temperature level working medium compression pump 17 compressed cryogenic level organic working medium, from low-temperature level turbine 12 out after exhaust steam enter the preheating of low-temperature level regenerator 18 release heat from low-temperature level working medium compression pump 17 organic working medium out, then enter coagulator 16 condensation and become liquid, then out enter after the pressurization of low-temperature level working medium compression pump 17 afterwards from coagulator 16 and to enter the heat that condenser/evaporator 19 absorbs high-temperature level exhaust steam after heat that low-temperature level regenerator 11 absorbs exhaust steam heats up and make organic working medium become the steam that can do work, complete low-temperature level circulation,
4, cooling water recirculation system: the working medium be delivered to coagulator 16 pairs of low-temperature level organic Rankine bottoming cycle loops through cooling waterpump 15 from cooling tower 14 cooling water out carries out condensation, return the water distributor of cooling tower 14 afterwards, through supercooling laggard enter water-collecting tray at the bottom of tower, complete a circulation.
The invention has the beneficial effects as follows:
(1) the burning working medium adopted is made a living biomass fuel, reduces harmful matter CO
x, SO
xgeneration and discharge;
(2) have employed superposition type organic Rankine bottoming cycle, achieve the cascade utilization of biomass fuel, improve the utilization ratio of energy, also achieve the combination of living beings and organic Rankine bottoming cycle simultaneously;
(3) this system apparatus arrangements is simply compact, low cost of manufacture, flameholding and safe and reliable to operation;
(4) the present invention is applicable to provide electric power in the not enough area of centrally connected power supply or power supply, as mountain area, pastoral area, fragmentary island, farmers' of living scattered, remote geological park, the military base etc. high to power supply safety requirement to some.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
In figure: 1-smoke exhaust fan, 2-chimney, 3-gas fan, 4-air preheater, 5-biomass heat-conduction oil chain furnace, 6-conduction oil preheater, 7-vaporizer, 8-preheater, 9-high-temperature level turbine, 10-generator I, 11-high-temperature level regenerator, 12-low-temperature level turbine, 13-generator II, 14-cooling tower, 15-cooling waterpump, 16-coagulator, 17-low-temperature level working medium compression pump, 18-low-temperature level regenerator, 19-condenser/evaporator, 20-high-temperature level working medium compression pump, 21-heat conduction oil circulating pump.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
As shown in Figure 1, this superposition type organic rankine cycle system, this system comprises burning and Heat-conduction oil circulation system, high-temperature level organic rankine cycle system, low-temperature level organic rankine cycle system and cooling water recirculation system;
Described burning and Heat-conduction oil circulation system comprise smoke exhaust fan 1, chimney 2, gas fan 3, air preheater 4, biomass heat-conduction oil chain furnace 5, conduction oil preheater 6 and connecting tube, combustion air outlet in gas fan 3 connects air preheater 4, conduction oil chain furnace 5 successively, conduction oil chain furnace 5 connects conduction oil preheater 6 filler opening, and conduction oil chain furnace 5 smoke outlet connects conduction oil preheater 6, air preheater 4, smoke exhaust fan 1 and chimney 2 successively;
Described high-temperature level organic rankine cycle system comprises vaporizer 7, preheater 8, high-temperature level turbine 9, generator I 10, high-temperature level regenerator 11, condenser/evaporator 19, high-temperature level working medium compression pump 20 and connecting tube, conduction oil outlet in conduction oil chain furnace 5 connects vaporizer 7, vaporizer 7 turns back in conduction oil preheater 6 by heat conduction oil circulating pump 21 after the conduction oil outlet of heat release connects preheater 8, steam working medium in vaporizer 7 connects high-temperature level turbine 9, high-temperature level turbine 9 connects generator I 10, the weary gas outlet of high-temperature level turbine 9 connects high-temperature level regenerator 11, condenser/evaporator 19, the acting of high-temperature level turbine 9 part connects high-temperature level working medium compression pump 20, liquid working substance outlet in condenser/evaporator 19 connects preheater 8 and vaporizer 7 successively by high-temperature level working medium compression pump 20,
Described low-temperature level organic rankine cycle system comprises low-temperature level turbine 12, generator II 13, coagulator 16, low-temperature level working medium compression pump 17 and low-temperature level regenerator 18, the Low Temperature Steam sender property outlet of condenser/evaporator 19 connects low-temperature level turbine 12, generator II 13 successively, low-temperature level turbine 12 part merit connects low-temperature level working medium compression pump 17, low-temperature level turbine 12 exhaust steam outlet connects low-temperature level regenerator 18, coagulator 16 successively, and coagulator 16 cryogenic liquid working connects low-temperature level regenerator 18 and condenser/evaporator 19 successively by low-temperature level working medium compression pump 17;
Described cooling water recirculation system comprises cooling tower 14, cooling waterpump 15 and connecting tube, and cooling tower 14 coolant outlet connects coagulator 16 by cooling waterpump 15.
Wherein in high-temperature level organic rankine cycle system, cycle fluid adopts HMDO; Pentafluoropropane (R245fa) is adopted and the Cu-Al2O3 mix nanoparticles that to add with pentafluoropropane (R245fa) mass ratio be 0.3:0.7 forms nanometer cycle fluid in described low-temperature level organic rankine cycle system; Described air preheater 4, conduction oil preheater 6, vaporizer 7, preheater 8, high-temperature level regenerator 11, coagulator 16, low-temperature level regenerator 16 and condenser/evaporator 19 all adopt plate type heat exchanger.
Embodiment 2
As shown in Figure 1, this superposition type organic rankine cycle system, this system comprises burning and Heat-conduction oil circulation system, high-temperature level organic rankine cycle system, low-temperature level organic rankine cycle system and cooling water recirculation system;
Described burning and Heat-conduction oil circulation system comprise smoke exhaust fan 1, chimney 2, gas fan 3, air preheater 4, biomass heat-conduction oil chain furnace 5, conduction oil preheater 6 and connecting tube, combustion air outlet in gas fan 3 connects air preheater 4, conduction oil chain furnace 5 successively, conduction oil chain furnace 5 connects conduction oil preheater 6 filler opening, and conduction oil chain furnace 5 smoke outlet connects conduction oil preheater 6, air preheater 4, smoke exhaust fan 1 and chimney 2 successively;
Described high-temperature level organic rankine cycle system comprises vaporizer 7, preheater 8, high-temperature level turbine 9, generator I 10, high-temperature level regenerator 11, condenser/evaporator 19, high-temperature level working medium compression pump 20 and connecting tube, conduction oil outlet in conduction oil chain furnace 5 connects vaporizer 7, vaporizer 7 turns back in conduction oil preheater 6 by heat conduction oil circulating pump 21 after the conduction oil outlet of heat release connects preheater 8, steam working medium in vaporizer 7 connects high-temperature level turbine 9, high-temperature level turbine 9 connects generator I 10, the weary gas outlet of high-temperature level turbine 9 connects high-temperature level regenerator 11, condenser/evaporator 19, the acting of high-temperature level turbine 9 part connects high-temperature level working medium compression pump 20, liquid working substance outlet in condenser/evaporator 19 connects preheater 8 and vaporizer 7 successively by high-temperature level working medium compression pump 20,
Described low-temperature level organic rankine cycle system comprises low-temperature level turbine 12, generator II 13, coagulator 16, low-temperature level working medium compression pump 17 and low-temperature level regenerator 18, the Low Temperature Steam sender property outlet of condenser/evaporator 19 connects low-temperature level turbine 12, generator II 13 successively, low-temperature level turbine 12 part merit connects low-temperature level working medium compression pump 17, low-temperature level turbine 12 exhaust steam outlet connects low-temperature level regenerator 18, coagulator 16 successively, and coagulator 16 cryogenic liquid working connects low-temperature level regenerator 18 and condenser/evaporator 19 successively by low-temperature level working medium compression pump 17;
Described cooling water recirculation system comprises cooling tower 14, cooling waterpump 15 and connecting tube, and cooling tower 14 coolant outlet connects coagulator 16 by cooling waterpump 15.
Wherein in high-temperature level organic rankine cycle system, cycle fluid adopts mass ratio to be the prestox cyclotrisiloxane of 1:1 and the mixed solution of octamethylcy-clotetrasiloxane composition; Adopt mass ratio to be the mixed solution that the freon (R123) of 1:1 and propane (R290) form in described low-temperature level organic rankine cycle system, and to add with mixed solution mass ratio be that the Cu-Al2O3 mix nanoparticles of 0.6:0.4 forms nanometer cycle fluid; Air preheater 4, conduction oil preheater 6, vaporizer 7, preheater 8, high-temperature level regenerator 11, coagulator 16, low-temperature level regenerator 16 and condenser/evaporator 19 all adopt plate type heat exchanger.
Embodiment 3
This superposition type organic rankine cycle system, this system comprises burning and Heat-conduction oil circulation system, high-temperature level organic rankine cycle system, low-temperature level organic rankine cycle system and cooling water recirculation system;
Described burning and Heat-conduction oil circulation system comprise smoke exhaust fan 1, chimney 2, gas fan 3, air preheater 4, biomass heat-conduction oil chain furnace 5, conduction oil preheater 6 and connecting tube, combustion air outlet in gas fan 3 connects air preheater 4, conduction oil chain furnace 5 successively, conduction oil chain furnace 5 connects conduction oil preheater 6 filler opening, and conduction oil chain furnace 5 smoke outlet connects conduction oil preheater 6, air preheater 4, smoke exhaust fan 1 and chimney 2 successively;
Described high-temperature level organic rankine cycle system comprises vaporizer 7, preheater 8, high-temperature level turbine 9, generator I 10, high-temperature level regenerator 11, condenser/evaporator 19, high-temperature level working medium compression pump 20 and connecting tube, conduction oil outlet in conduction oil chain furnace 5 connects vaporizer 7, vaporizer 7 turns back in conduction oil preheater 6 by heat conduction oil circulating pump 21 after the conduction oil outlet of heat release connects preheater 8, steam working medium in vaporizer 7 connects high-temperature level turbine 9, high-temperature level turbine 9 connects generator I 10, the weary gas outlet of high-temperature level turbine 9 connects high-temperature level regenerator 11, condenser/evaporator 19, the acting of high-temperature level turbine 9 part connects high-temperature level working medium compression pump 20, liquid working substance outlet in condenser/evaporator 19 connects preheater 8 and vaporizer 7 successively by high-temperature level working medium compression pump 20,
Described low-temperature level organic rankine cycle system comprises low-temperature level turbine 12, generator II 13, coagulator 16, low-temperature level working medium compression pump 17 and low-temperature level regenerator 18, the Low Temperature Steam sender property outlet of condenser/evaporator 19 connects low-temperature level turbine 12, generator II 13 successively, low-temperature level turbine 12 part merit connects low-temperature level working medium compression pump 17, low-temperature level turbine 12 exhaust steam outlet connects low-temperature level regenerator 18, coagulator 16 successively, and coagulator 16 cryogenic liquid working connects low-temperature level regenerator 18 and condenser/evaporator 19 successively by low-temperature level working medium compression pump 17;
Described cooling water recirculation system comprises cooling tower 14, cooling waterpump 15 and connecting tube, and cooling tower 14 coolant outlet connects coagulator 16 by cooling waterpump 15.
Wherein in high-temperature level organic rankine cycle system, cycle fluid adopts mass ratio to be the mixed solution of decamethyl penta siloxane of 1:1:1:1, tetradecamethylhexasiloxane, benzene, toluene composition; Adopt mass ratio to be the R143a of 1:1, the mixed solution of butane composition in described low-temperature level organic rankine cycle system, and to add with mixed solution mass ratio be that 0.6:0.4Cu-Al2O3 mix nanoparticles forms nanometer cycle fluid; Air preheater 4, conduction oil preheater 6, vaporizer 7, preheater 8, high-temperature level regenerator 11, coagulator 16, low-temperature level regenerator 16 and condenser/evaporator 19 all adopt plate type heat exchanger.
Embodiment 4
This superposition type organic rankine cycle system, this system comprises burning and Heat-conduction oil circulation system, high-temperature level organic rankine cycle system, low-temperature level organic rankine cycle system and cooling water recirculation system;
Described burning and Heat-conduction oil circulation system comprise smoke exhaust fan 1, chimney 2, gas fan 3, air preheater 4, biomass heat-conduction oil chain furnace 5, conduction oil preheater 6 and connecting tube, combustion air outlet in gas fan 3 connects air preheater 4, conduction oil chain furnace 5 successively, conduction oil chain furnace 5 connects conduction oil preheater 6 filler opening, and conduction oil chain furnace 5 smoke outlet connects conduction oil preheater 6, air preheater 4, smoke exhaust fan 1 and chimney 2 successively;
Described high-temperature level organic rankine cycle system comprises vaporizer 7, preheater 8, high-temperature level turbine 9, generator I 10, high-temperature level regenerator 11, condenser/evaporator 19, high-temperature level working medium compression pump 20 and connecting tube, conduction oil outlet in conduction oil chain furnace 5 connects vaporizer 7, vaporizer 7 turns back in conduction oil preheater 6 by heat conduction oil circulating pump 21 after the conduction oil outlet of heat release connects preheater 8, steam working medium in vaporizer 7 connects high-temperature level turbine 9, high-temperature level turbine 9 connects generator I 10, the weary gas outlet of high-temperature level turbine 9 connects high-temperature level regenerator 11, condenser/evaporator 19, the acting of high-temperature level turbine 9 part connects high-temperature level working medium compression pump 20, liquid working substance outlet in condenser/evaporator 19 connects preheater 8 and vaporizer 7 successively by high-temperature level working medium compression pump 20,
Described low-temperature level organic rankine cycle system comprises low-temperature level turbine 12, generator II 13, coagulator 16, low-temperature level working medium compression pump 17 and low-temperature level regenerator 18, the Low Temperature Steam sender property outlet of condenser/evaporator 19 connects low-temperature level turbine 12, generator II 13 successively, low-temperature level turbine 12 part merit connects low-temperature level working medium compression pump 17, low-temperature level turbine 12 exhaust steam outlet connects low-temperature level regenerator 18, coagulator 16 successively, and coagulator 16 cryogenic liquid working connects low-temperature level regenerator 18 and condenser/evaporator 19 successively by low-temperature level working medium compression pump 17;
Described cooling water recirculation system comprises cooling tower 14, cooling waterpump 15 and connecting tube, and cooling tower 14 coolant outlet connects coagulator 16 by cooling waterpump 15.
Wherein in high-temperature level organic rankine cycle system, cycle fluid adopts mass ratio to be the mixed solution of the ethylbenzene of 1:1:1:1, n-proplbenzene, butylbenzene, cyclohexane composition; Adopt HFC-134a (R134a) in described low-temperature level organic rankine cycle system, and to add with HFC-134a mass ratio be that 0.6:0.4Cu-Al2O3 mix nanoparticles forms nanometer cycle fluid; Air preheater 4, conduction oil preheater 6, vaporizer 7, preheater 8, high-temperature level regenerator 11, coagulator 16, low-temperature level regenerator 16 and condenser/evaporator 19 all adopt plate type heat exchanger.
Below by reference to the accompanying drawings the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned mode of execution, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (4)
1. a superposition type organic rankine cycle system, is characterized in that: this system comprises burning and Heat-conduction oil circulation system, high-temperature level organic rankine cycle system, low-temperature level organic rankine cycle system and cooling water recirculation system;
Described burning and Heat-conduction oil circulation system comprise smoke exhaust fan (1), chimney (2), gas fan (3), air preheater (4), biomass heat-conduction oil chain furnace (5), conduction oil preheater (6) and connecting tube, combustion air outlet in gas fan (3) connects air preheater (4) successively, conduction oil chain furnace (5), conduction oil chain furnace (5) connects conduction oil preheater (6) filler opening, conduction oil chain furnace (5) smoke outlet connects conduction oil preheater (6) successively, air preheater (4), smoke exhaust fan (1) and chimney (2),
Described high-temperature level organic rankine cycle system comprises vaporizer (7), preheater (8), high-temperature level turbine (9), generator I (10), high-temperature level regenerator (11), condenser/evaporator (19), high-temperature level working medium compression pump (20) and connecting tube, conduction oil outlet in conduction oil chain furnace (5) connects vaporizer (7), vaporizer (7) turns back in conduction oil preheater (6) by heat conduction oil circulating pump (21) after the conduction oil outlet of heat release connects preheater (8), steam working medium in vaporizer (7) connects high-temperature level turbine (9), high-temperature level turbine (9) connects generator I (10), the weary gas outlet of high-temperature level turbine (9) connects high-temperature level regenerator (11), condenser/evaporator (19), the acting of high-temperature level turbine (9) part connects high-temperature level working medium compression pump (20), liquid working substance outlet in condenser/evaporator (19) connects preheater (8) and vaporizer (7) successively by high-temperature level working medium compression pump (20),
Described low-temperature level organic rankine cycle system comprises low-temperature level turbine (12), generator II (13), coagulator (16), low-temperature level working medium compression pump (17) and low-temperature level regenerator (18), the Low Temperature Steam sender property outlet of condenser/evaporator (19) connects low-temperature level turbine (12) successively, generator II (13), low-temperature level turbine (12) part merit connects low-temperature level working medium compression pump (17), low-temperature level turbine (12) exhaust steam outlet connects low-temperature level regenerator (18) successively, coagulator (16), coagulator (16) cryogenic liquid working connects low-temperature level regenerator (18) and condenser/evaporator (19) successively by low-temperature level working medium compression pump (17),
Described cooling water recirculation system comprises cooling tower (14), cooling waterpump (15) and connecting tube, and cooling tower (14) coolant outlet connects coagulator (16) by cooling waterpump (15).
2. superposition type organic rankine cycle system according to claim 1, is characterized in that: in described high-temperature level organic rankine cycle system cycle fluid adopt HMDO, prestox cyclotrisiloxane, octamethylcy-clotetrasiloxane, decamethyl penta siloxane, tetradecamethylhexasiloxane, benzene, toluene, ethylbenzene, n-proplbenzene, butylbenzene, the mixed solution of a kind of pure refrigerant or wherein any two kinds and above working medium composition in cyclohexane.
3. superposition type organic rankine cycle system according to claim 1, it is characterized in that: the mixed solution adopting a kind of pure refrigerant in pentafluoropropane, freon, propane, HFC-134a, butane or wherein two kinds of arbitrary proportions and above working medium composition in described low-temperature level organic rankine cycle system, and add Cu-Al2O3 mix nanoparticles and form nanometer cycle fluid.
4. superposition type organic rankine cycle system according to claim 1, is characterized in that: described air preheater (4), conduction oil preheater (6), vaporizer (7), preheater (8), high-temperature level regenerator (11), coagulator (16), low-temperature level regenerator (16) and condenser/evaporator (19) all adopt plate type heat exchanger.
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