CN102852741B - System and method for combined heat and power generation of micro biomass and solar energy - Google Patents

System and method for combined heat and power generation of micro biomass and solar energy Download PDF

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CN102852741B
CN102852741B CN201210256937.6A CN201210256937A CN102852741B CN 102852741 B CN102852741 B CN 102852741B CN 201210256937 A CN201210256937 A CN 201210256937A CN 102852741 B CN102852741 B CN 102852741B
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heat
working medium
valve
solar
organic working
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CN102852741A (en
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邵应娟
金保昇
钟文琪
陈曦
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Southeast University
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Southeast University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]

Abstract

The invention discloses a system for combined heat and power generation of micro biomass and solar energy. The system comprises a heat transfer fluid circulation loop (I), an organic working medium circulation loop (II) communicated with the heat transfer fluid circulation loop (I), a power generation system and a heat supply system. The power generation system and the heat supply system are respectively communicated with the organic working medium circulation loop (I). The heat transfer fluid circulation loop (I) and the organic working medium circulation loop (II) share a superheater (4) and an evaporator (5). The heat supply system and the organic working medium circulation loop (II) share a condenser (12). A method for combined heat and power generation of micro biomass and solar energy is further provided. The method adopts the combined heat and power circulation process of solar energy, the combined heat and power circulation process of biomass and the combined heat and power circulation process of the solar energy and the biomass. The system can provide electric energy and heat energy for users simultaneously, is low in investment cost, high in power generation efficiency and good in system stability and achieves reasonable matching and high-efficiency comprehensive utilization of different renewable energies.

Description

A kind of Miniature biomass and solar cogeneration system and method
Technical field
The present invention relates to a kind of efficient mini living beings and solar cogeneration method of adjustable operating mode, belong to renewable energy technologies, minisize distributed type energy technology field.
Background technique
Minisize distributed type energy system is the energy supplying system being arranged in user side in the mode of small-scale, small capacity, modularization, dispersion, and energy supply power is less than 100 kilowatts.This system has minimizing primary energy consumption, very big reduction power transmission and distribution loss and power transmission and distribution cost, the advantages such as system being low cost, are subject to the attention of countries in the world, are particularly suitable for the human settlements such as the low outlying mountain area of the population density, farm, forest farm, only building.
Current, distributing-supplying-energy technology and equipment mainly monopolize by developed countries such as American-European and Japan.The U.S. is one of country developing distributing-supplying-energy system the earliest.The distributed energy supply development level in Europe is according to advanced in the world, and wherein the distributed energy supply generated energy of Denmark accounts for 52% of domestic gross generation, surpasses the world average level far away.Distributed thermoelectricity (cold) combination supply system of Japan is the third-largest energy-provision way being only second to combustion gas, electric power.
In China, " national medium-to long-range program for scientific and technological development " using distributing-supplying-energy technology as 4 the energy field cutting edge technologies arranged side by side with Hydrogen Energy, nuclear energy etc.Compared with developed countries, but China's distributing-supplying-energy technology is in the starting stage, also there is many needs improves part, and the problems such as poor in system suitability, cycle efficiency is not high, nucleus equipment technology imperfection, need the research and development accelerating related process, technology and equipment badly.
In minisize distributed type energy supply technique many at present, living beings and solar cogeneration, owing to fully combining the advantage of renewable energy sources, become the emphasis of countries in the world development.But current existing process system still ubiquity problem, as: the environmental suitability of (1) equipment is poor, due to living beings skewness, and sunlight intensity is with the change of season, time, region, existing system is all difficult to accomplish that biomass energy is mated with the flexible of solar energy; (2) system effectiveness is lower, design good minisize distributed type energy system, its theoretical generating efficiency can reach 20% ~ 25%, and thermoelectricity total efficiency can reach 70% ~ 80%, the current generating efficiency of current China is only about 10%, still has huge skill upgrading space and market development potential.
For this reason, the efficient mini living beings that this patent proposes and solar cogeneration method, possesses the environment-adapting ability that the method for operation (solar thermoelectricity combined circulation, the circulation of biomass thermal Electricity Federation and living beings and solar thermoelectricity combined circulation) adjustable flexibly improves renewable energy system, make it can be applied to the wide geographic area of Different climate, and not by the restriction of season, round the clock equal time factor.In addition, this patent adopts organic rankie cycle to replace conventional steam/refrigeration agent Rankine cycle, not only significantly improves system effectiveness, guarantees the stability that equipment runs, also achieve zero destruction of this system to environment.
Summary of the invention
Technical problem: the present invention proposes a kind of Miniature biomass and solar cogeneration system and method, solve the problems such as poor efficiency when independent application of solar energy and biomass energy and low stability, improve the efficiency of renewable energy system simultaneously, reduce equipment cost and realize renewable energy system distribution and miniaturization.
Technological scheme: for solving the problems of the technologies described above, the invention provides a kind of Miniature biomass and solar cogeneration system, this system comprises heat transfer fluid circulation loop, the organic working medium circulation loop communicated with heat transfer fluid circulation loop, the power generation system be connected with organic working medium circulation loop respectively and heating system; Wherein,
Hot fluid circulation loop and organic working medium circulation loop share superheater and vaporizer; Heating system and organic working medium circulation loop common condenser.
Preferably, in heat transfer fluid circulation loop, comprise the biomass boiler device, solar heat sorption enhanced device, heat-transfer working medium flowmeter, superheater, vaporizer and the heat-transfer working medium recycle pump that are connected successively by thermal fluid pipeline, wherein,
The import that outlet and the solar heat of biomass boiler device absorb conversion equipment is connected, the outlet of solar absorption heat conversion device is connected with the import of heat-transfer working medium flowmeter, the import of the outlet superheat device of heat-transfer working medium flowmeter is connected, the heat-transfer working medium delivery outlet of superheater is connected with the heat-transfer working medium inlet opening of vaporizer, the outlet of vaporizer is connected with the import of heat-transfer working medium recycle pump, and heat-transfer working medium circulation delivery side of pump is connected with the import of biomass boiler device; Be respectively equipped with the 4th valve and the 3rd valve in the import of biomass boiler device and outlet, be respectively equipped with the second valve and the first valve in the import of solar heat sorption enhanced device and outlet;
In organic working medium circulation, comprise the superheater, monitor window, miniature decompressor, bleeder heater, condenser, organic working medium liquid container, organic working medium recycle pump, organic working medium flowmeter, organic working medium flowmeter, bleeder heater and the vaporizer that are connected successively by organic working medium pipeline; Wherein,
The outlet of superheater is connected with the import of monitor window, the outlet of monitor window is connected with the steam ports that enters of miniature decompressor, the steam ouput of miniature decompressor is connected with the first import of bleeder heater with alternator respectively, and the first outlet of bleeder heater is connected with the first import of vaporizer; Second outlet of bleeder heater is connected with the first import of condenser, first outlet of condenser is connected with the import of organic working medium liquid container, the outlet of organic working medium liquid container is connected with the import of organic working medium recycle pump, organic working medium circulation delivery side of pump is connected with the import of organic working medium flowmeter, and the outlet of organic working medium flowmeter is connected with the second import of bleeder heater;
The transformer that power generation system comprises alternator, is connected with alternator;
Heating system comprises condenser, waterback pump and heat user; Wherein, backwater delivery side of pump is connected with condenser second import, and the second outlet of condenser is connected with user, and the import of waterback pump is connected with user.
Preferably, the thermal fluid circulated in heat transfer fluid circulation loop is conduction oil or water.
Preferably, the cycle fluid adopted in organic working medium circulation loop is the organic working medium solution of nontoxic pollution-free.
Present invention also offers a kind of Miniature biomass and solar cogeneration method, the method adopts three kinds of circulation modes, that is: solar thermoelectricity combined cyclic process, the cyclic process of living beings combined heat and power and living beings and solar thermoelectricity combined cyclic process; Wherein,
Solar thermoelectricity combined cyclic process: sufficient at solar energy resources, under meeting the condition of user's heat energy and electric energy needs, regulate the 4th valve, 3rd valve, the flow direction of the second valve and the first valve, make valve the 4th valve, pipeline between 3rd valve is pass-through state, pipeline between second valve and the first valve is off state, thus make biomass boiler system not access heat transfer fluid circulation loop, thermal fluid is by means of only solar heat absorbing and converting system, hot heat transfer fluid is added separately by solar energy, and heat transfer is to organic working medium circulation loop, realize cogeneration of heat and power,
Living beings combined heat and power cyclic process: when not having solar energy resources or solar radiation intensity to be less than this co-generation unit operating cost, by regulating the flow direction of the 4th valve, the 3rd valve, the second valve and the first valve, make the 4th valve, the pipeline of the 3rd valve is off state, pipeline between second valve and the first valve is pass-through state, make thermal fluid by means of only biomass boiler system, hot heat transfer fluid is added separately by biomass burning heat release, and heat transfer is to organic working medium circulation loop, realizes cogeneration of heat and power;
Living beings and solar thermoelectricity combined cyclic process: under the common operating conditions except above two kinds of situations, by regulating the flow direction of the 4th valve, the 3rd valve, the second valve and the first valve, the pipeline between valve the 4th valve, the 3rd valve is made to be pass-through state, pipeline between second valve and the first valve is pass-through state, now, thermal fluid accepts the common heating of biomass boiler system and solar heat absorbing and converting system simultaneously, and heat transfer is to organic working medium circulation loop, realizes cogeneration of heat and power.
Beneficial effect: the Miniature biomass of a kind of adjustable operating mode that the present invention proposes and solar cogeneration system have following characteristic and advantage:
1, can carry out Proper Match to solar energy and biomass energy two kinds of renewable energy sourcess, namely make full use of solar energy resources, overcome again the unstability of conventional solar power system, make it have very strong environmental suitability, the restriction by region and time is little.
2, the present invention is only by solar heat sorption enhanced equipment embedded system, saves the necessary heat accumulation subsystem and afterburning subtense angle etc. of conventional solar heat power generation system, reduces the complexity of equipment, cost of simultaneously reducing investment outlay.
3, to add the temperature of hot fluid general lower for conventional solar thermal collection system, by being integrated in biomass power generation system, can improve heat-transfer fluid temperature further, improving the generating efficiency of system.
4, adopt organic rankie cycle to replace conventional steam Rankine cycle, improve the generating efficiency of system, can ensure expander outlet mass dryness fraction, proterctive equipment also improves system run all right simultaneously.
Solar heat sorption enhanced equipment can be distributed in building top layer, and biomass boiler system can directly replace domestic heating boiler, and main equipment does not additionally take space, does not affect architectural design and outward appearance, achieves the maximum using to resource simultaneously.
Accompanying drawing explanation
Fig. 1 is miniature solar energy of the present invention and biomass thermal cogeneration system schematic diagram.
This system is made up of heat transfer fluid circulation I and organic working medium circulation II two loops.Figure comprises: biomass boiler system 1, solar heat absorbing and converting system 2, heat-transfer working medium flowmeter 3, superheater 4, vaporizer 5, heat-transfer working medium recycle pump 6, monitor window 7, miniature decompressor 8, alternator 9, transformer 10, bleeder heater 11, condenser 12, organic working medium liquid container 13, organic working medium recycle pump 14, organic working medium flowmeter 15, waterback pump 16, heat user 17, first three-phase valve V1, the second three-phase valve V2, the 3rd three-phase valve V3 and the 4th three-phase valve V4.
Biological particles entrance A, boiler flue gas outlet B, cooling water inlet C, hot water output port D, electric energy output end mouth E.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Solar energy heating technology and biomass combustion technical tie-up are used by the present invention, thus provide not by the stable thermal source that the external environmental factor such as region and time affects for system; For the problem that the system thermal efficiency caused because heat source temperature is lower is lower, low boiling organic working medium is adopted to replace conventional water vapour Rankine cycle.Under its basic ideas enter: adopt optical block and heat-collecting devcie, solar radiation thermal transition is become heat energy, the heat coordinating Miniature biomass boiler burning biological particles to produce heats to thermal fluid.Thermal fluid carries out heat exchange by superheater and vaporizer and organic working medium solution successively, makes it change overheated dry steam into, drives the generating of miniature steam turbine unit, and heat exchange, to cooling water, realizes electric energy and heat energy exports within the condenser.
See Fig. 1, Miniature biomass provided by the invention and solar cogeneration system, this system comprises heat transfer fluid circulation loop I, the organic working medium circulation loop II communicated with heat transfer fluid circulation loop I, the power generation system be connected with organic working medium circulation loop II respectively and heating system; Wherein,
Hot fluid circulation loop I and organic working medium circulation loop II shares superheater 4 and vaporizer 5; Heating system and organic working medium circulation loop II common condenser 12.
In the I of heat transfer fluid circulation loop, comprise the biomass boiler device 1 connected successively by thermal fluid pipeline, solar heat sorption enhanced device 2, heat-transfer working medium flowmeter 3, superheater 4, vaporizer 5 and heat-transfer working medium recycle pump 6, wherein, the import that outlet and the solar heat of biomass boiler device 1 absorb conversion equipment 2 is connected, the outlet of solar absorption heat conversion device 2 is connected with the import of heat-transfer working medium flowmeter 3, the import of the outlet superheat device 4 of heat-transfer working medium flowmeter 3 is connected, the heat-transfer working medium delivery outlet of superheater 4 is connected with the heat-transfer working medium inlet opening of vaporizer 5, the outlet of vaporizer 5 is connected with the import of heat-transfer working medium recycle pump 6, the outlet of heat-transfer working medium recycle pump 6 is connected with the import of biomass boiler device 1, be respectively equipped with the 4th valve V4 and the 3rd valve V3 in the import of biomass boiler device 1 and outlet, be respectively equipped with the second valve V2 and the first valve V1 in the import of solar heat sorption enhanced device 2 and outlet.
In organic working medium circulation II, comprise the superheater 4, monitor window 7, miniature decompressor 8, bleeder heater 11, condenser 12, organic working medium liquid container 13, organic working medium recycle pump 14, organic working medium flowmeter 14, organic working medium flowmeter 15, bleeder heater 11 and the vaporizer 5 that are connected successively by organic working medium pipeline; Wherein, the outlet of superheater 4 is connected with the import of monitor window 7, the outlet of monitor window 7 is connected with the steam ports that enters of miniature decompressor 8, the steam ouput of miniature decompressor 8 is connected with the first import of bleeder heater 11 with alternator 9 respectively, and the first outlet of bleeder heater 11 is connected with the first import of vaporizer 5; Second outlet of bleeder heater 11 is connected with the first import of condenser 12, first outlet of condenser 12 is connected with the import of organic working medium liquid container 13, the outlet of organic working medium liquid container 13 is connected with the import of organic working medium recycle pump 14, the outlet of organic working medium recycle pump 14 is connected with the import of organic working medium flowmeter 15, and the outlet of organic working medium flowmeter 15 is connected with the second import of bleeder heater 11.
The transformer 10 that power generation system comprises alternator 9, is connected with alternator 9; Heating system comprises condenser 12, waterback pump 16 and heat user 17; Wherein, the outlet of waterback pump 16 is connected with condenser 12 second import, and the second outlet of condenser is connected with user, and the import of waterback pump 16 is connected with user.
The thermal fluid circulated in the I of heat transfer fluid circulation loop is conduction oil or water.
The cycle fluid adopted in organic working medium circulation loop II is the organic working medium solution of nontoxic pollution-free.
Present invention also offers a kind of Miniature biomass and solar cogeneration method, the method adopts three kinds of circulation modes, that is: solar thermoelectricity combined cyclic process, the cyclic process of living beings combined heat and power and living beings and solar thermoelectricity combined cyclic process; Wherein,
Solar thermoelectricity combined cyclic process: sufficient at solar energy resources, under meeting the condition of user's heat energy and electric energy needs, regulate the 4th valve V4, 3rd valve V3, the flow direction of the second valve V2 and the first valve V1, make valve the 4th valve V4, pipeline between 3rd valve V3 is pass-through state, pipeline between second valve V2 and the first valve V1 is off state, thus make biomass boiler system 1 not access heat transfer fluid circulation loop I, thermal fluid is by means of only solar heat absorbing and converting system 2, hot heat transfer fluid is added separately by solar energy, and heat transfer is to organic working medium circulation loop II, realize cogeneration of heat and power,
Living beings combined heat and power cyclic process: when not having solar energy resources or solar radiation intensity to be less than this co-generation unit operating cost, by regulating the flow direction of the 4th valve V4, the 3rd valve V3, the second valve V2 and the first valve V1, make the 4th valve V4, the pipeline of the 3rd valve V3 is off state, pipeline between second valve V2 and the first valve V1 is pass-through state, make thermal fluid by means of only biomass boiler system 1, hot heat transfer fluid is added separately by biomass burning heat release, and heat transfer is to organic working medium circulation loop II, realizes cogeneration of heat and power.
Living beings and solar thermoelectricity combined cyclic process: under the common operating conditions except above two kinds of situations, by regulating the flow direction of the 4th valve V4, the 3rd valve V3, the second valve V2 and the first valve V1, the pipeline between valve the 4th valve V4, the 3rd valve V3 is made to be pass-through state, second valve V2) and the first valve V1 between pipeline be pass-through state, now, thermal fluid accepts the common heating of biomass boiler system 1 and solar heat absorbing and converting system 2 simultaneously, and heat transfer is to organic working medium circulation loop II, realizes cogeneration of heat and power.
The thermal fluid circulated in the I of heat transfer fluid circulation loop is conduction oil or water.
What circulate in organic working medium circulation loop II is Rankine cycle working medium, is the organic working medium solution of nontoxic pollution-free.As circulating generation efficiency can reach 20% ~ 25%.
Organic working medium solution is hydrogen fluorine ether (Hydrofluo-roether) serial solution.
Details are as follows.
As shown in Figure 1, this co-generation unit is made up of heat transfer fluid circulation I and organic working medium circulation II two loops for the building mode of system of the present invention and implementation method.Be heat transfer fluid circulation I in left-hand broken line frame in Fig. 1, having in solar radiation situation, solar radiation thermal absorption is used for adding hot heat transfer fluid (as conduction oil by solar heat absorbing and converting system 2, water etc.) to setting temperature, more weak or when there is no a solar radiation in solar radiation, then pass through biomass burning particle by biomass boiler system 1, supplementary heating is to heat required during setting temperature.The thermal fluid being heated to setting temperature transfers heat to organic working medium solution through superheater 4 and vaporizer 5 successively, heat-transfer fluid temperature after heat transmits declines, after heat-transfer working medium recycle pump 6 pressurizes, reenter solar heat absorbing and converting system 2 and biomass boiler system 1 heats again, complete and once circulate.Be organic working medium circulation II in the dotted line frame of right side in Fig. 1, organic working medium solution is first through bleeder heater 10 preheating, enter vaporizer 5 afterwards and be heated as saturated vapour, and the overheated dry steam be further heated in superheater 4 as high pressure, overheated dry steam is through monitor window 7, enter miniature decompressor 8, band motor alternator 9 produces electric energy.Overheated dry steam after acting becomes wet vapor, and through bleeder heater 11 partial exothermic, then enter condenser 12 and be cooled after water cooling, wet vapor is condensed into liquid organic working medium solution again, flows into organic working medium liquid container 13, completes and once circulate.
Wherein, biomass boiler system 1 connects into heat transfer fluid circulation I by three-dimensional valve V3, V4, and solar heat absorbing and converting system 2 then connects into heat transfer fluid circulation I by three-dimensional valve V1, V2.Therefore, arranged by the difference operating four three-phase valves, native system according to the impact of the factors such as user's local time and season, can change operational condition, realizes following three kinds of operations:
1. solar thermoelectricity combined circulation: sufficient at solar energy resources, under the condition of user's heat energy and electric energy needs can be met, regulate the flow direction of four three-dimensional valves, the pipeline between valve V3 and V4 is made to be pass-through state, pipeline between valve V1 and V2 is off state, thus makes biomass boiler system 1 not access heat transfer fluid circulation I, and thermal fluid is by means of only solar heat absorbing and converting system 2, add hot heat transfer fluid separately by solar energy, realize the cogeneration of heat and power of system.
2. living beings combined heat and power circulation: when not having solar energy resources (as night) or solar radiation intensity to be less than this co-generation unit operating cost, by regulating the flow direction of four three-dimensional valves, the pipeline between valve V3 and V4 is made to be off state, pipeline between valve V1 and V2 is pass-through state, make thermal fluid by means of only biomass boiler system 1, add hot heat transfer fluid separately by biomass burning heat release, realize the cogeneration of heat and power of system.
Living beings and solar thermoelectricity combined circulation: under the common operating conditions except above two kinds of situations, by regulating the flow direction of four three-dimensional valves, the pipeline between valve V3 and V4 is made to be pass-through state, pipeline between valve V1 and V2 is pass-through state, now, thermal fluid accepts the common heating of biomass boiler system 1 and solar heat absorbing and converting system 2 simultaneously, realizes the cogeneration of heat and power of system.
According to solar radiation situation and user's request situation, native system has three kinds of main methods of operation.Be described referring to Fig. 1, the method of operation adopts living beings and solar thermoelectricity combined circular flow, heat-transfer working medium is with water, organic working medium, for hydrogen fluorine ether (Hydrofluo-roether) Solution H FE7000, describes the actual motion method of the Miniature biomass based on organic Rankine bottoming cycle of the present invention and solar cogeneration system in detail.
Starting trouble add fuel particle in biomass boiler system 1 after, setting superheater 4 ingress heat-transfer fluid temperature is 140 DEG C, pressure is 400 ~ 500kPa, open solar heat absorbing and converting system 2 simultaneously and absorb solar heat radiation, the circulating direction of adjustment three-phase valve, make pipeline between V1 and V2 be off state, the pipeline between V3 and V4 is off state.Open heat-transfer working medium recycle pump 6, heat transfer fluid circulation I starts, water, through the common heating of biomass boiler system 1 and solar heat absorbing and converting system 2, is warming up to setting temperature and pressure, by superheater 4 and vaporizer 5, heat is passed to organic working medium solution successively.Heat-transfer working medium after heat release is got back to after being pressurizeed by heat-transfer working medium recycle pump 6 in biomass boiler system 1 and solar heat absorbing and converting system (2) and is again heated, and constantly circulates with this.
Open organic working medium recycle pump 13, organic working medium circulation II starts, organic working medium HFE7000 by thermal evaporation, is heated to 90 ~ 100 DEG C, the saturated vapour of 400 ~ 500kPa in vaporizer 5,110 ~ 120 DEG C are heated to be further through superheater 4, after the overheated dry steam of 500 ~ 600kPa, by monitor window 7, enter expansion work in miniature decompressor 8, miniature decompressor 8 is with motor alternator 9 to generate electricity, the low tension sent through transformer 10 boost after for user.It is 80 ~ 100 DEG C that overheated dry steam after acting becomes temperature, the wet vapor of 150 ~ 200kPa, through bleeder heater 11 partial exothermic, temperature is down to 70 ~ 80 DEG C, enter condenser 12 to be again cooled further, the liquid organic working medium that wet vapor is condensed into, flow into organic working medium liquid container 13, again enter in vaporizer 5 and superheater 4 after organic working medium recycle pump 14 pressurizes and heated, constantly circulate with this.
From the cooling water of heat user 17 through waterback pump 16, be delivered to condenser 12 and be heated to 50 ~ 60 DEG C, complete the hot water after heating process and send heat user 17 place back to, for building and heating and hot water for life.
The difference of other two kinds of methods of operation and living beings and solar thermoelectricity combined circular flow is only, in solar thermoelectricity combined circulation, thermal fluid is by means of only solar heat absorbing and converting system 2; In the circulation of living beings combined heat and power, thermal fluid is by means of only biomass boiler system 1.
The foregoing is only better embodiment of the present invention; protection scope of the present invention is not limited with above-mentioned mode of execution; in every case those of ordinary skill in the art modify or change according to the equivalence that disclosed content is done, and all should include in the protection domain recorded in claims.

Claims (2)

1. a Miniature biomass and solar cogeneration system, it is characterized in that, this system comprises heat transfer fluid circulation loop (I), the organic working medium circulation loop (II) communicated with heat transfer fluid circulation loop (I), the power generation system be connected with organic working medium circulation loop (II) respectively and heating system; Wherein,
Hot fluid circulation loop (I) and organic working medium circulation loop (II) share superheater (4) and vaporizer (5); Heating system and organic working medium circulation loop (II) common condenser (12);
In heat transfer fluid circulation loop (I), comprise the biomass boiler device (1), solar heat sorption enhanced device (2), heat-transfer working medium flowmeter (3), superheater (4), vaporizer (5) and the heat-transfer working medium recycle pump (6) that are connected successively by thermal fluid pipeline, wherein
The import that outlet and the solar heat of biomass boiler device (1) absorb conversion equipment (2) is connected, the outlet of solar absorption heat conversion device (2) is connected with the import of heat-transfer working medium flowmeter (3), the import of the outlet superheat device (4) of heat-transfer working medium flowmeter (3) is connected, the heat-transfer working medium delivery outlet of superheater (4) is connected with the heat-transfer working medium inlet opening of vaporizer (5), the outlet of vaporizer (5) is connected with the import of heat-transfer working medium recycle pump (6), the outlet of heat-transfer working medium recycle pump (6) is connected with the import of biomass boiler device (1), be respectively equipped with the 4th valve (V4) and the 3rd valve (V3) in the import of biomass boiler device (1) and outlet, be respectively equipped with the second valve (V2) and the first valve (V1) in the import of solar heat sorption enhanced device (2) and outlet,
In organic working medium circulation (II), comprise the superheater (4), monitor window (7), miniature decompressor (8), bleeder heater (11), condenser (12), organic working medium liquid container (13), organic working medium recycle pump (14), organic working medium flowmeter (14), organic working medium flowmeter (15), bleeder heater (11) and the vaporizer (5) that are connected successively by organic working medium pipeline; Wherein,
The outlet of superheater (4) is connected with the import of monitor window (7), the outlet of monitor window (7) is connected with the steam ports that enters of miniature decompressor (8), the steam ouput of miniature decompressor (8) is connected with first import of alternator (9) with bleeder heater (11) respectively, and the first outlet of bleeder heater (11) is connected with the first import of vaporizer (5); Second outlet of bleeder heater (11) is connected with the first import of condenser (12), first outlet of condenser (12) is connected with the import of organic working medium liquid container (13), the outlet of organic working medium liquid container (13) is connected with the import of organic working medium recycle pump (14), the outlet of organic working medium recycle pump (14) is connected with the import of organic working medium flowmeter (15), and the outlet of organic working medium flowmeter (15) is connected with the second import of bleeder heater (11);
The transformer (10) that power generation system comprises alternator (9), is connected with alternator (9);
Heating system comprises condenser (12), waterback pump (16) and heat user (17); Wherein, the outlet of waterback pump (16) is connected with condenser (12) second import, and the second outlet of condenser is connected with user, and the import of waterback pump (16) is connected with user.
2. the Miniature biomass of Miniature biomass and solar cogeneration system and solar cogeneration method as claimed in claim 1, it is characterized in that, the method adopts three kinds of circulation modes, that is: solar thermoelectricity combined cyclic process, the cyclic process of living beings combined heat and power and living beings and solar thermoelectricity combined cyclic process; Wherein,
Solar thermoelectricity combined cyclic process: sufficient at solar energy resources, under meeting the condition of user's heat energy and electric energy needs, regulate the 4th valve (V4), 3rd valve (V3), the flow direction of the second valve (V2) and the first valve (V1), make valve the 4th valve (V4), pipeline between 3rd valve (V3) is pass-through state, pipeline between second valve (V2) and the first valve (V1) is off state, thus make biomass boiler system (1) not access heat transfer fluid circulation loop (I), thermal fluid is by means of only solar heat absorbing and converting system (2), hot heat transfer fluid is added separately by solar energy, and heat transfer is to organic working medium circulation loop (II), realize cogeneration of heat and power,
Living beings combined heat and power cyclic process: when not having solar energy resources or solar radiation intensity to be less than this co-generation unit operating cost, by regulating the 4th valve (V4), 3rd valve (V3), the flow direction of the second valve (V2) and the first valve (V1), make the 4th valve (V4), the pipeline of the 3rd valve (V3) is off state, pipeline between second valve (V2) and the first valve (V1) is pass-through state, make thermal fluid by means of only biomass boiler system (1), hot heat transfer fluid is added separately by biomass burning heat release, and heat transfer is to organic working medium circulation loop (II), realize cogeneration of heat and power,
Living beings and solar thermoelectricity combined cyclic process: under the common operating conditions except above two kinds of situations, by regulating the 4th valve (V4), 3rd valve (V3), the flow direction of the second valve (V2) and the first valve (V1), make valve the 4th valve (V4), pipeline between 3rd valve (V3) is pass-through state, pipeline between second valve (V2) and the first valve (V1) is pass-through state, now, thermal fluid accepts the common heating of biomass boiler system (1) and solar heat absorbing and converting system (2) simultaneously, and heat transfer is to organic working medium circulation loop (II), realize cogeneration of heat and power.
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