CN102493931A - Solar energy and methane energy complementation-based electricity generating equipment - Google Patents
Solar energy and methane energy complementation-based electricity generating equipment Download PDFInfo
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- CN102493931A CN102493931A CN2011104119181A CN201110411918A CN102493931A CN 102493931 A CN102493931 A CN 102493931A CN 2011104119181 A CN2011104119181 A CN 2011104119181A CN 201110411918 A CN201110411918 A CN 201110411918A CN 102493931 A CN102493931 A CN 102493931A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 230000005611 electricity Effects 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000003860 storage Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 40
- 230000008569 process Effects 0.000 claims abstract description 35
- 238000010248 power generation Methods 0.000 claims description 38
- 239000008234 soft water Substances 0.000 claims description 32
- 230000001172 regenerating effect Effects 0.000 claims description 30
- 241000282326 Felis catus Species 0.000 claims description 22
- 238000005261 decarburization Methods 0.000 claims description 18
- 238000006477 desulfuration reaction Methods 0.000 claims description 18
- 230000023556 desulfurization Effects 0.000 claims description 18
- 230000008676 import Effects 0.000 claims description 12
- 239000013589 supplement Substances 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 6
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 16
- 239000004305 biphenyl Substances 0.000 description 8
- 235000010290 biphenyl Nutrition 0.000 description 8
- ZCILODAAHLISPY-UHFFFAOYSA-N biphenyl ether Natural products C1=C(CC=C)C(O)=CC(OC=2C(=CC(CC=C)=CC=2)O)=C1 ZCILODAAHLISPY-UHFFFAOYSA-N 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 8
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- 210000003608 fece Anatomy 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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Abstract
The invention discloses solar energy and methane energy complementation-based electricity generating equipment. The electricity generating equipment comprises a solar energy heat collection device, a methane storage tank, a methane boiler, a steam turbine set and a generator, wherein a methane combustor, a steam superheater and a process water preheater are arranged in the methane boiler; the solar energy heat collection device and the methane combustor can heat steam in the steam superheater simultaneously or respectively; an output end of the steam superheater is connected with a high-pressure steam inlet of the steam turbine set; a lower-pressure steam outlet of the steam turbine set is connected with the process water preheater through a condenser, a deaerator and a water feeding pump in turn; and circulation water which is output from the process water preheater is returned to the steam superheater after being reheated by the solar energy heat collection device. Compared with the conventional fossil energy source-based electricity generating device, the solar energy and methane energy complementation-based electricity generating equipment has the advantages that: sulfur dioxide (SO2) and carbon dioxide (CO2) are not discharged, the influence of weather on solar energy fluctuation is eliminated, and an operation mode of the steam turbine set can be conveniently changed to ensure that the generator can generate electricity for 24 hours stably in the daytime and at night and in cloudy days and sunny days.
Description
Technical field
The present invention relates to the clean energy resource power generating equipment, refer to that particularly a kind of solar energy and biogas can complemental power-generation equipment.
Background technique
At present, along with the minimizing day by day of traditional fossil energy reserves such as coal, oil, rock gas, seek the focus that reproducible clean energy resource has become social common concern.On the other hand, because environmental pollution direct threats human existence and the development of using fossil energy to bring, therefore pay attention to and develop reproducible clean energy resource, reduce SO
2And CO
2Discharging has become the common recognition of national governments.Solar energy have distribute extensively, reserves are unlimited, collect and utilize cleaning, SO
2And CO
2Advantages such as zero-emission, but weather effect is big, energy compiles problems such as unstable discontinuous owing to its energy comparatively disperses, receives, and large-scale developing and utilizing of the generating of solar energy heat build-up for a long time received very big restriction.Biogas that nature exists and the biogas that human and animal excreta, the fermentation of agricultural abandoned biomass are produced also are a kind of important renewable energy, and it cleans than fossil energy, also has CO
2The characteristic of zero-emission, but owing to human and animal excreta, agricultural abandoned biomass distribute extensively, dispersion degree is big, it is difficult to collect, not only utilization ratio is very low, and very big to the pollution of environment.How to administer human and animal excreta and agricultural abandoned biomass effectively, itself and solar energy heat build-up generating are combined, realize turning waste into wealth, be the difficult problem that related domain scientific research personnel needs to be resolved hurrily always.
Summary of the invention
The object of the invention is exactly to make full use of the energy that is contained in human and animal excreta and the agricultural abandoned biomass; Overcome known solar heat power station and receive that weather effect is big, energy compiles instability, discontinuous defective, a kind of solar energy and biogas ability complemental power-generation equipment is provided.
For realizing above-mentioned purpose, the technological scheme of the present invention's design is following:
A kind of solar energy provided by the invention and biogas ability complemental power-generation equipment; Comprise solar heat collector, biogas storage tank, methane boiler, steam turbine set and the generator that links with steam turbine set, be provided with biogas burner, steam superheater and process water preheater in the said methane boiler.The output terminal of said solar heat collector links to each other with the input end of steam superheater through first switch valve; The output terminal of said steam superheater links to each other with the high pressure steam inlet of steam turbine set through steam regulation valve; The low pressure steam outlet of said steam turbine set links to each other with the input end of condenser; The output terminal of said condenser links to each other with the input end of oxygen-eliminating device, in order to remove the oxygen in the circulating water, prevents equipment and pipeline oxide etch.The output terminal of said oxygen-eliminating device links to each other with the input end of feed water pump, and said feedwater delivery side of pump links to each other with the input end of feed-regulating valve with the process water preheater through the second switch valve, can save the biogas consumption through the preheating to circulating water, improves the thermal efficiency.The output terminal of said process water preheater links to each other with the input end of solar heat collector, constitutes the circulation loop of steam thus.The outlet of said biogas storage tank links to each other with biogas burner through the biogas compressor pump, in order to the steam in the steam superheater heat to be provided.The outlet of said biogas storage tank and the pipeline between the biogas burner are provided with the 3rd switch valve and biogas modulating valve; The 3rd switch valve is used to control the break-make of methane pipeline; The biogas modulating valve is then controlled the flow of biogas; Regulate the size of biogas burner flame, thus the temperature of steam in the control steam superheater.
Heat-conducting medium in the above-mentioned solar heat collector is a water, and water becomes high temperature and high pressure steam that steam turbine set is done work through the steam superheater direct boiling after absorbing solar energy again, and it is simple in structure, with low cost.
Further; Said solar energy and biogas can also comprise the soft water storage tank by complemental power-generation equipment; The water outlet of said soft water storage tank links to each other with the water supplement port of oxygen-eliminating device through small pump; Pipeline between the water outlet of said soft water storage tank and the water supplement port of oxygen-eliminating device is provided with the 4th switch valve, constitutes circulating water deposit and replenishment system in the steam circuit thus.Said soft water storage tank is used to lay in the soft water for preparing from the Water Treatment device, and this soft water has removed calcium wherein, magnesium ion, can effectively prevent the device interior fouling; Said the 4th switch valve is used to control the supply and the flow size of soft water, with the loss according to actual conditions replenishment cycles water.
Further; Said solar energy and biogas can also comprise biogas generating device by complemental power-generation equipment; The methane outlet of said biogas generating device links to each other with the input end of moisture trap through the 5th switch valve; The output terminal of said moisture trap links to each other with the input end of desulfurization and decarburization tower, and the output terminal of said desulfurization and decarburization tower links to each other with the import of biogas storage tank.Because the raw material that biogas generating device adopted mainly is human and animal excreta and agricultural abandoned biomass; Its biogas that is produced during the fermentation is a kind of mixed gas; Approximately contain 60～65% methane, 30～35% carbon dioxide, 1% hydrogen sulfide, small amount of moisture, carbon monoxide, hydrogen and other hydrocarbon; Wherein the existence of hydrogen sulfide and moisture content has strong corrosivity to equipment, the carbon dioxide value of not burning, operation power consumption in vain in system; Therefore the setting of moisture trap and desulfurization and decarburization tower can purifying marsh gas, removes invalid components such as wherein steam, hydrogen sulfide, carbon dioxide.
Further, the high pressure steam ingress pipeline of said steam turbine set is provided with pressure meter and thermometer.The purpose that pressure meter and thermometer are set is vapor pressure and the temperature for visual control input steam turbine set, satisfies the service condition of steam turbine set.
Further, link to each other through the 6th switch valve between the input end of the output terminal of said process water preheater and steam superheater.When sunny by day, the 6th switch valve is in closed condition, by solar energy and biogas can be simultaneously or solar energy provide the steam turbine set generating required steam separately.Arrive or during rainy weather, open the 6th switch valve when night, close first switch valve, the steam pipework of steam turbine set just needn't flow to solar heat collector, only by biogas the steam turbine set required steam that generates electricity can be provided separately.
Another kind of solar energy provided by the invention and biogas ability complemental power-generation equipment; Comprise solar heat collector, biogas storage tank, methane boiler, steam turbine set and the generator that links with steam turbine set, be provided with biogas burner, steam superheater and process water preheater in the said methane boiler.The output terminal of said solar heat collector links to each other with the thermal medium import of regenerative heat exchanger through first switch valve, and the thermal medium outlet of said regenerative heat exchanger links to each other with the input end of solar heat collector through the hydrothermal solution pump.The steam output end of said regenerative heat exchanger links to each other with the input end of steam superheater through the 7th switch valve; The output terminal of said steam superheater links to each other with the high pressure steam inlet of steam turbine set through steam regulation valve; The low pressure steam outlet of said steam turbine set links to each other with the input end of condenser; The output terminal of said condenser links to each other with the input end of oxygen-eliminating device, in order to remove the oxygen in the circulating water, prevents equipment and pipeline oxide etch.The output terminal of said oxygen-eliminating device links to each other with the input end of feed water pump, and said feedwater delivery side of pump links to each other with the input end of feed-regulating valve with the process water preheater through the second switch valve, can save the biogas consumption through the preheating to circulating water, improves the thermal efficiency.The output terminal of said process water preheater links to each other with the circulating water input end of regenerative heat exchanger, constitutes the circulation loop of steam thus.The outlet of said biogas storage tank links to each other with biogas burner through the biogas compressor pump, in order to the steam in the steam superheater heat to be provided.The outlet of said biogas storage tank and the pipeline between the biogas burner are provided with the 3rd switch valve and biogas modulating valve; The 3rd switch valve is used to control the break-make of methane pipeline; The biogas modulating valve is then controlled the flow of biogas; Regulate the size of biogas burner flame, thus the temperature of steam in the control steam superheater.
Heat-conducting medium in the above-mentioned solar heat collector adopts high temperature heat conductive oil etc., can be heavy oil, paraffin wax, fuse salt or other known liquid heat conductive mixture, can reach 400 ℃ like the heating-up temperature with biphenyl and biphenyl ether mixed solution.The high temperature heat conducting medium that has absorbed solar energy feeds water heat transfer through regenerative heat exchanger, and water is vaporized into high temperature and high pressure steam through steam superheater again steam turbine set is done work, and it is stable, and is safe and reliable.
Can be preferably, it also comprises the soft water storage tank, and the water outlet of said soft water storage tank links to each other with the water supplement port of oxygen-eliminating device through small pump, and the pipeline between the water outlet of said soft water storage tank and the water supplement port of oxygen-eliminating device is provided with the 4th switch valve.Equally, said soft water has removed calcium wherein, magnesium ion, can effectively prevent the device interior fouling; Said the 4th switch valve is used to regulate the supply and the flow size of soft water, the loss of replenishment cycles water.
Can be preferably; It also comprises biogas generating device; The methane outlet of said biogas generating device links to each other with the input end of moisture trap through the 5th switch valve; The output terminal of said moisture trap links to each other with the input end of desulfurization and decarburization tower, and the output terminal of said desulfurization and decarburization tower links to each other with the import of biogas storage tank.Equally; Being provided with of biogas generating device can be guaranteed the continuity of system's operation, and the setting of moisture trap and desulfurization and decarburization tower can purifying marsh gas, removes invalid components such as wherein steam, hydrogen sulfide, carbon dioxide; Prevent equipment corrosion, improve the utilization ratio of biogas.
Can be preferably, the high pressure steam ingress pipeline of said steam turbine set is provided with pressure meter and thermometer.Equally, being provided with of pressure meter and thermometer can confirm intuitively whether vapor pressure and the temperature of importing steam turbine set reach the rated designs parameter, thereby adjustment in time makes it satisfy the service condition of steam turbine set.
Can be preferably, the steam output end of said regenerative heat exchanger also is provided with the emergency switch valve that links to each other with the external world.The purpose that the emergency switch valve is set is for when the system operation catastrophic failure, with other switch valve acting in conjunction, protective system dead halt.
Working principle of the present invention is summarized as follows: through the break-make of switch valve on the reasonable control respective line, can realize following three kinds of mode of operations: the solar heat collector isolated operation pattern when 1, daytime, sunshine was abundant; 2, the biogas burner isolated operation pattern when night or rainy weather; Solar heat collector and biogas burner synchronous operation pattern when 3, sunshine on daytime is not enough.No matter which kind of pattern equipment is in; Can the steam in the steam superheater be heated, formed high temperature and high pressure steam is through the adjustment of steam regulation valve, reach the specified pressure and temperature of steam turbine set after; The acting of entering steam turbine set drives generator for electricity generation.The steam of finishing merit is cooled to atmospheric low-temperature water through condenser, removes oxygen part wherein through oxygen-eliminating device then, is delivered in the process water preheater through feed water pump, feed-regulating valve again.Can after solar heat collector reheats, return steam superheater from the circulating water of process water preheater output, also can directly return steam superheater, the circulation of a beginning new round.Biogas burner then further heats to steam superheater.When needs replenishment cycles water, through small pump the soft water in the soft water storage tank is drawn in the oxygen-eliminating device and gets final product, the number of rate of water make-up is controlled by corresponding switch valve.
The invention has the advantages that: the steam thermal power of the power generating equipment that designs had both come from clean cleaning, inexhaustible, nexhaustible solar energy; Coming from the biogas that the fermentation of human and animal excreta, abandoned biomass forms again can; Two kinds of energy cooperative compensatings; Not only overcome solar energy dispersion, energy and compiled the problem of instability etc., and can effect a radical cure the pollution to environment of human and animal excreta, abandoned biomass, fermentation and biogas production gained by-product natural pond slag, natural pond liquid still are the crops organic fertilizer of high-quality; Turn waste into wealth, achieve many things at one stroke.Compare with traditional fossil energy generating, the present invention neither discharges SO
2And CO
2, stabilized the influence of fluctuations of weather again to solar energy.Through regulation and control to respective switch valve, modulating valve, can change the operating mode that steamer is sent out group easily, but make generator no matter by day night, no matter be equal twenty four hours all-weather stable electric generation of fine cloudy day.
Description of drawings
Fig. 1 is the structural representation of embodiment's 1 said solar energy and biogas ability complemental power-generation equipment.Wherein: the cat head solar boiler is directly passed to heat energy the vapor recycle pipeline of steam turbine set.
Fig. 2 is the structural representation of embodiment's 2 said solar energy and biogas ability complemental power-generation equipment.Wherein: solar energy evacuated heat build-up pipe is directly passed to heat energy the vapor recycle pipeline of steam turbine set.
Fig. 3 is the structural representation of embodiment's 3 said solar energy and biogas ability complemental power-generation equipment.Wherein: the cat head solar boiler is given the heat energy indirect transfer vapor recycle pipeline of steam turbine set.
Fig. 4 is the structural representation of embodiment's 4 said solar energy and biogas ability complemental power-generation equipment.Wherein: the vapor recycle pipeline of steam turbine set given the heat energy indirect transfer by solar energy evacuated heat build-up pipe.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is made further detailed description.
Embodiment 1:
Solar energy as shown in Figure 1 and biogas can complemental power-generation equipment, mainly by solar heat collector, biogas generating device 20, moisture trap 31, desulfurization and decarburization tower 32, biogas storage tank 19, methane boiler 10, steam turbine set 2, form through pipeline and valve combination with the devices such as generator 1, condenser 5, oxygen-eliminating device 6, feed water pump 7, soft water storage tank 9 and small pump 8 of steam turbine set 2 interlocks.Biogas burner 16, steam superheater 11 and process water preheater 12 are installed in the methane boiler 10.Valve comprises first to the 6th switch valve 22,24,28,26,21,33, and emergency switch valve 30, in order to the break-make of pilot line; Steam regulation valve 23, feed-regulating valve 25, biogas modulating valve 27 are in order to regulate the flow of corresponding fluids.
Solar heat collector shown in Figure 1 comprises the settled date reflector 14 of a cat head solar boiler 13 and several and its coupling, and settled date reflector 14 can be followed the tracks of the sun by day, on the heat build-up pipe that sunlight is gathered all the time be mapped to solar boiler 13.The heat build-up pipe output terminal of cat head solar boiler 13 links to each other with the input end of steam superheater 11 through first switch valve 22; The output terminal of steam superheater 11 links to each other with the high pressure steam inlet 3 of steam turbine set 2 through steam regulation valve 23; And on the high pressure steam of steam turbine set 2 enters the mouth 3 place's pipelines, pressure meter P and thermometer T are installed, in order to the pressure and temperature parameter of demonstration steam directly perceived.
The low pressure steam of above-mentioned steam turbine set 2 outlet 4 links to each other with the input end of condenser 5, and the output terminal of condenser 5 links to each other with the input end of oxygen-eliminating device 6.The water outlet of soft water storage tank 9 links to each other with the water supplement port of oxygen-eliminating device 6 through small pump 8, on the pipeline between the water outlet that the 4th switch valve 26 is arranged on soft water storage tank 9 and the water supplement port of oxygen-eliminating device 6, in order to the switching of controlling water pipe and rate of water make-up how much.The output terminal of oxygen-eliminating device 6 links to each other with the input end of feed water pump 7; The output terminal of feed water pump 7 links to each other with the input end of feed-regulating valve 25 with process water preheater 12 through second switch valve 24; The output terminal of process water preheater 12 links to each other with the heat build-up pipe input end of cat head solar boiler 13, constitutes the circulation loop of the steam of steam turbine set 2.
The methane outlet of above-mentioned biogas generating device 20 links to each other with the input end of moisture trap 31 through the 5th switch valve 21; The output terminal of moisture trap 31 links to each other with the input end of desulfurization and decarburization tower 32; The output terminal of desulfurization and decarburization tower 32 links to each other with the import of biogas storage tank 19, and the outlet of biogas storage tank 19 links to each other with biogas burner 16 through biogas compressor pump 18.The 3rd switch valve 28 and biogas modulating valve 27 are arranged in the outlet and the pipeline between the biogas burner 16 of biogas storage tank 19; In order to the break-make and the flow size of regulating biogas; And then the size of regulating flame in the biogas burner 16, thereby the temperature of steam in the control steam superheater 11.
Above-mentioned the 6th switch valve 33 is arranged on the connecting pipeline between the input end of output terminal and steam superheater 11 of process water preheater 12.When only adopting marsh gas power generation, open the 6th switch valve 33, close first switch valve 22, the cyclic steam of steam turbine set 2 can be walked around the heat build-up pipe of cat head solar boiler 13, saves the path of vapor recycle, thereby reduces the biogas thermal energy consumption.The above-mentioned emergency switch valve 30 that links to each other with the external world is arranged on the heat build-up pipe output terminal of cat head solar boiler 13, so that when catastrophic failure and other switch valve acting in conjunction, the protection device security is shut down.
Embodiment 1 working procedure is such: close six switch valve 33 when solar radiation is arranged daytime, opens first switch valve 22, second switch valve 24, and system is in solar energy heat build-up generator operation state.At this moment, settled date reflector 14 tracks sunlight, and sunlight heat energy gathered on the heat build-up pipe of cat head solar boiler 13 make wherein the circulating water increasing temperature and pressure of being heated, and flow in the steam superheater 11 and form high temperature and high pressure steam.After high temperature and high pressure steam is adjusted to specified pressure and temperature through steam regulation valve 23, be transported to acting generating in the steam turbine set 2.Steam after the acting is cooled to the atmospheric low-temperature water about 40 ℃ through condenser 5; Transport to and remove the oxygen that dissolves in the water in the oxygen-eliminating device 6; Be transported in the process water preheater 12 by feed water pump 7 again and absorb waste heat, send back at last in the heat build-up pipe of cat head solar boiler 13, the circulation of beginning next round.Meanwhile, behind the surface water of gathering separately or well water preliminary purification, remove wherein calcium, magnesium ion through the Water Treatment workshop again, it is subsequent use to be delivered to soft water storage tank 9.When needing moisturizing, soft water is aspirated by small pump 8, and through the 4th switch valve 26 control flow rate, sends into supplementing water loss amount in the oxygen-eliminating device 6.
When the sunlight deficiency perhaps needs to increase generated energy, can adopt the pattern of solar energy and biogas ability co-generation of power.At this moment; Open the 3rd switch valve 28, through biogas compressor pump 18 biogas in the biogas storage tank 19 is drawn into burning in the biogas burner 16, the heat energy that the biogas burning is produced is applied on the steam superheater 11; Further heating steam wherein remedies the not enough influence of solar energy.Can control the size of biogas combustion flame through biogas modulating valve 27, thereby control the temperature and pressure of steam in the steam superheater, make it reach the required nominal parameter of steam turbine set 2 generatings.
When needs replenish the biogas amount, open the 5th switch valve 21, the biogas that biogas generating device 20 is produced is after moisture trap 31 and desulfurization and decarburization tower 32 are handled, and is subsequent use in the input biogas storage tank 19.The pipeline that also can remain between biogas generating device 20 and the biogas storage tank 19 at ordinary times is unimpeded, so that carry biogas to biogas storage tank 19 continuously.
When evening or rainy weather, close first switch valve 22, open second switch valve 24, the 6th switch valve 33 and the 3rd switch valve 28, system is in biogas combustion power generation running state.At this moment; Biogas compressor pump 18 is drawn into burning in the biogas burner 16 with the biogas in the biogas storage tank 19; To steam superheater 11 heat temperature raisings; Biogas modulating valve 27 can be controlled the size of biogas combustion flame, after the high temperature and high pressure steam that forms adjusts to specified pressure and temperature through steam regulation valve 23, being transported to acting generating in the steam turbine set 2.Steam after the acting is cooled to the atmospheric low-temperature water about 40 ℃ through condenser 5; Transport to and remove the oxygen that dissolves in the water in the oxygen-eliminating device 6; Be transported in the process water preheater 12 by feed water pump 7 again and absorb waste heat, turn back in the steam superheater 11 through the 6th switch valve 33 at last, the circulation of beginning next round.During the biogas combustion power generation, the additional process of biogas and soft water is the same.
Heat-conducting medium among the embodiment 1 in the cat head solar boiler is a water, need not additional more heat transmission equipment, and the water direct boiling is done work to steam turbine set after becoming high temperature and high pressure steam, and it is simple in structure, with low cost.
Embodiment 2:
Solar energy as shown in Figure 2 and biogas ability complemental power-generation equipment; Its structure and solar energy shown in Figure 1 and biogas ability complemental power-generation equipment are basic identical; The just solar heat collector slight change among Fig. 2; It by some groups of solar energy evacuated heat build-up pipes 13 ' and with the grooved parabolic mirror 14 of its coupling ' form; Solar energy evacuated heat build-up pipe 13 ' output terminal link to each other with the input end of steam superheater 11 through first switch valve 22, solar energy evacuated heat build-up pipe 13 ' input end link to each other with the output terminal of process water preheater 12.The working procedure basically identical of these two kinds of solar energy and biogas ability complemental power-generation equipment repeats no more in this.
Embodiment 3:
Solar energy as shown in Figure 3 and biogas can complemental power-generation equipment, mainly by solar heat collector, biogas generating device 20, moisture trap 31, desulfurization and decarburization tower 32, biogas storage tank 19, methane boiler 10, steam turbine set 2, form through pipeline and valve combination with the devices such as generator 1, condenser 5, oxygen-eliminating device 6, feed water pump 7, soft water storage tank 9 and small pump 8 of steam turbine set 2 interlocks.Biogas burner 16, steam superheater 11 and process water preheater 12 are installed in the methane boiler 10.Valve comprises first to the 5th switch valve, 22,24,28,26,21, the seven switch valves 29, and emergency switch valve 30, in order to the break-make of pilot line; Steam regulation valve 23, feed-regulating valve 25, biogas modulating valve 27 are in order to regulate the flow of corresponding fluids.
Solar heat collector shown in Figure 3 comprises the settled date reflector 14 of a cat head solar boiler 13 and several and its coupling, and settled date reflector 14 can be followed the tracks of the sun by day, on the heat build-up pipe that sunlight is gathered all the time be mapped to solar boiler 13.The heat build-up pipe output terminal of cat head solar boiler 13 links to each other with the thermal medium import of regenerative heat exchanger 15 through first switch valve 22, and the thermal medium outlet of regenerative heat exchanger 15 links to each other with the heat build-up pipe input end of cat head solar boiler 13 through hydrothermal solution pump 17.Thermal medium adopts biphenyl and biphenyl ether mixed solution, is filled in the regenerative heat exchanger 15 that is provided with thermal insulation layer, and its heat absorption heats up and can reach about 400 ℃, is enough to be used for heat exchange generation high temperature and high pressure steam.The steam output end of regenerative heat exchanger 15 links to each other with the input end of steam superheater 11 through the 7th switch valve 29; The output terminal of steam superheater 11 links to each other with the high pressure steam inlet 3 of steam turbine set 2 through steam regulation valve 23; And on the high pressure steam of steam turbine set 2 enters the mouth 3 place's pipelines, pressure meter P and thermometer T are installed, in order to the pressure and temperature parameter of demonstration steam directly perceived.
The low pressure steam of above-mentioned steam turbine set 2 outlet 4 links to each other with the input end of condenser 5, and the output terminal of condenser 5 links to each other with the input end of oxygen-eliminating device 6.The water outlet of soft water storage tank 9 links to each other with the water supplement port of oxygen-eliminating device 6 through small pump 8, on the pipeline between the water outlet that the 4th switch valve 26 is arranged on soft water storage tank 9 and the water supplement port of oxygen-eliminating device 6, in order to the switching of controlling water pipe and rate of water make-up how much.The output terminal of oxygen-eliminating device 6 links to each other with the input end of feed water pump 7; The output terminal of feed water pump 7 links to each other with the input end of feed-regulating valve 25 with process water preheater 12 through second switch valve 24; The output terminal of process water preheater 12 links to each other with the circulating water input end of regenerative heat exchanger 15, constitutes the circulation loop of the steam of steam turbine set 2.
The methane outlet of above-mentioned biogas generating device 20 links to each other with the input end of moisture trap 31 through the 5th switch valve 21; The output terminal of moisture trap 31 links to each other with the input end of desulfurization and decarburization tower 32; The output terminal of desulfurization and decarburization tower 32 links to each other with the import of biogas storage tank 19, and the outlet of biogas storage tank 19 links to each other with biogas burner 16 through biogas compressor pump 18.The 3rd switch valve 28 and biogas modulating valve 27 are arranged in the outlet and the pipeline between the biogas burner 16 of biogas storage tank 19; In order to the break-make and the flow size of regulating biogas; And then the size of regulating flame in the biogas burner 16, thereby the temperature of steam in the control steam superheater 11.The above-mentioned emergency switch valve 30 that links to each other with the external world is arranged on the steam output end of regenerative heat exchanger 15, so that when catastrophic failure and other switch valve acting in conjunction, the protection device security is shut down.
When the sunlight deficiency perhaps needs to increase generated energy, can adopt the pattern of solar energy and biogas ability co-generation of power.At this moment; Open the 3rd switch valve 28, through biogas compressor pump 18 biogas in the biogas storage tank 19 is drawn into burning in the biogas burner 16, the heat energy that the biogas burning is produced is applied on the steam superheater 11; Further heating steam wherein remedies the not enough influence of solar energy.Can control the size of biogas combustion flame through biogas modulating valve 27, thereby control the temperature and pressure of steam in the steam superheater, make it reach the required nominal parameter of steam turbine set 2 generatings.
When needs replenish the biogas amount, open the 5th switch valve 21, the biogas that biogas generating device 20 is produced is after moisture trap 31 and desulfurization and decarburization tower 32 are handled, and is subsequent use in the input biogas storage tank 19.The pipeline that also can remain between biogas generating device 20 and the biogas storage tank 19 at ordinary times is unimpeded, so that carry biogas to biogas storage tank 19 continuously.
When evening or rainy weather, close first switch valve 22, open second switch valve 24, the 7th switch valve 29 and the 3rd switch valve 28, system is in biogas combustion power generation running state.At this moment; Biogas compressor pump 18 is drawn into burning in the biogas burner 16 with the biogas in the biogas storage tank 19; To steam superheater 11 heat temperature raisings; Biogas modulating valve 27 can be controlled the size of biogas combustion flame, after the high temperature and high pressure steam that forms adjusts to specified pressure and temperature through steam regulation valve 23, being transported to acting generating in the steam turbine set 2.Steam after the acting is cooled to the atmospheric low-temperature water about 40 ℃ through condenser 5; Transport to and remove the oxygen that dissolves in the water in the oxygen-eliminating device 6; Be transported in the process water preheater 12 by feed water pump 7 again and absorb waste heat; Turn back in the steam superheater 11 circulation of beginning next round at last successively through regenerative heat exchanger 15, the 7th switch valve 29.During the biogas combustion power generation, the additional process of biogas and soft water is the same.
Heat-conducting medium among the embodiment 3 in the cat head solar boiler adopts biphenyl and biphenyl ether mixed solution, and its heating-up temperature can reach 400 ℃.The high temperature biphenyl and the biphenyl ether mixed solution that have absorbed solar energy feed water heat transfer through regenerative heat exchanger again, and water does work to steam turbine set after being vaporized into high temperature and high pressure steam, and it is stable, and is safe and reliable.
Embodiment 4:
Solar energy as shown in Figure 4 and biogas ability complemental power-generation equipment; Its structure and solar energy shown in Figure 3 and biogas ability complemental power-generation equipment are basic identical; The just solar heat collector slight change among Fig. 4; It by some groups of solar energy evacuated heat build-up pipes 13 ' and with the grooved parabolic mirror 14 of its coupling ' form; Solar energy evacuated heat build-up pipe 13 ' output terminal link to each other with the thermal medium import of regenerative heat exchanger 15 through first switch valve 22, solar energy evacuated heat build-up pipe 13 ' input end export with the thermal medium of regenerative heat exchanger 15 through hydrothermal solution pump 17 and link to each other.The working procedure of these two kinds of solar energy and biogas ability complemental power-generation equipment is basically identical also, repeats no more in this.
Claims (14)
1. solar energy and biogas can complemental power-generation equipment; Comprise solar heat collector, biogas storage tank (19), methane boiler (10), steam turbine set (2) and the generator (1) that links with steam turbine set (2); Be provided with biogas burner (16), steam superheater (11) and process water preheater (12) in the said methane boiler (10); It is characterized in that: the output terminal of said solar heat collector links to each other with the input end of steam superheater (11) through first switch valve (22); The output terminal of said steam superheater (11) links to each other with the high pressure steam inlet (3) of steam turbine set (2) through steam regulation valve (23); The low pressure steam outlet (4) of said steam turbine set (2) links to each other with the input end of condenser (5); The output terminal of said condenser (5) links to each other with the input end of oxygen-eliminating device (6); The output terminal of said oxygen-eliminating device (6) links to each other with the input end of feed water pump (7), and the output terminal of said feed water pump (7) links to each other with the input end of feed-regulating valve (25) with process water preheater (12) through second switch valve (24), and the output terminal of said process water preheater (12) links to each other with the input end of solar heat collector; The outlet of said biogas storage tank (19) links to each other with biogas burner (16) through biogas compressor pump (18), and the pipeline between the outlet of said biogas storage tank (19) and the biogas burner (16) is provided with the 3rd switch valve (28) and biogas modulating valve (27).
2. solar energy according to claim 1 and biogas ability complemental power-generation equipment; It is characterized in that: it also comprises soft water storage tank (9); The water outlet of said soft water storage tank (9) links to each other with the water supplement port of oxygen-eliminating device (6) through small pump (8), and the pipeline between the water supplement port of the water outlet of said soft water storage tank (9) and oxygen-eliminating device (6) is provided with the 4th switch valve (26).
3. solar energy according to claim 2 and biogas ability complemental power-generation equipment; It is characterized in that: it also comprises biogas generating device (20); The methane outlet of said biogas generating device (20) links to each other with the input end of moisture trap (31) through the 5th switch valve (21); The output terminal of said moisture trap (31) links to each other with the input end of desulfurization and decarburization tower (32), and the output terminal of said desulfurization and decarburization tower (32) links to each other with the import of biogas storage tank (19).
4. according to claim 1 or 2 or 3 described solar energy and biogas ability complemental power-generation equipment, it is characterized in that: the high pressure steam inlet (3) of said steam turbine set (2) is located pipeline and is provided with pressure meter (P) and thermometer (T).
5. can complemental power-generation equipment according to claim 1 or 2 or 3 described solar energy and biogas, it is characterized in that: link to each other through the 6th switch valve (33) between the output terminal of said process water preheater (12) and the input end of steam superheater (11).
6. according to claim 1 or 2 or 3 described solar energy and biogas ability complemental power-generation equipment; It is characterized in that: said solar heat collector comprises the settled date reflector (14) of a cat head solar boiler (13) and several and its coupling; The heat build-up pipe output terminal of said cat head solar boiler (13) links to each other with the input end of steam superheater (11) through first switch valve (22), and the heat build-up pipe input end of said cat head solar boiler (13) links to each other with the output terminal of process water preheater (12).
7. according to claim 1 or 2 or 3 described solar energy and biogas ability complemental power-generation equipment; It is characterized in that: said solar heat collector comprise some groups of solar energy evacuated heat build-up pipes (13 ') and with the grooved parabolic mirror (14 ') of its coupling; The output terminal of said solar energy evacuated heat build-up pipe (13 ') links to each other with the input end of steam superheater (11) through first switch valve (22), and the input end of said solar energy evacuated heat build-up pipe (13 ') links to each other with the output terminal of process water preheater (12).
8. solar energy and biogas can complemental power-generation equipment; Comprise solar heat collector, biogas storage tank (19), methane boiler (10), steam turbine set (2) and the generator (1) that links with steam turbine set (2); Be provided with biogas burner (16), steam superheater (11) and process water preheater (12) in the said methane boiler (10); It is characterized in that: the output terminal of said solar heat collector links to each other with the thermal medium import of regenerative heat exchanger (15) through first switch valve (22), and the thermal medium outlet of said regenerative heat exchanger (15) links to each other with the input end of solar heat collector through hydrothermal solution pump (17); The steam output end of said regenerative heat exchanger (15) links to each other with the input end of steam superheater (11) through the 7th switch valve (29); The output terminal of said steam superheater (11) links to each other with the high pressure steam inlet (3) of steam turbine set (2) through steam regulation valve (23); The low pressure steam outlet (4) of said steam turbine set (2) links to each other with the input end of condenser (5); The output terminal of said condenser (5) links to each other with the input end of oxygen-eliminating device (6); The output terminal of said oxygen-eliminating device (6) links to each other with the input end of feed water pump (7); The output terminal of said feed water pump (7) links to each other with the input end of feed-regulating valve (25) with process water preheater (12) through second switch valve (24), and the output terminal of said process water preheater (12) links to each other with the circulating water input end of regenerative heat exchanger (15); The outlet of said biogas storage tank (19) links to each other with biogas burner (16) through biogas compressor pump (18), and the pipeline between the outlet of said biogas storage tank (19) and the biogas burner (16) is provided with the 3rd switch valve (28) and biogas modulating valve (27).
9. solar energy according to claim 8 and biogas ability complemental power-generation equipment; It is characterized in that: it also comprises soft water storage tank (9); The water outlet of said soft water storage tank (9) links to each other with the water supplement port of oxygen-eliminating device (6) through small pump (8), and the pipeline between the water supplement port of the water outlet of said soft water storage tank (9) and oxygen-eliminating device (6) is provided with the 4th switch valve (26).
10. solar energy according to claim 9 and biogas ability complemental power-generation equipment; It is characterized in that: it also comprises biogas generating device (20); The methane outlet of said biogas generating device (20) links to each other with the input end of moisture trap (31) through the 5th switch valve (21); The output terminal of said moisture trap (31) links to each other with the input end of desulfurization and decarburization tower (32), and the output terminal of said desulfurization and decarburization tower (32) links to each other with the import of biogas storage tank (19).
11. according to Claim 8 or 9 or 10 described solar energy and biogas can complemental power-generation equipment, it is characterized in that: the high pressure steam inlet (3) of said steam turbine set (2) is located pipeline and is provided with pressure meter (P) and thermometer (T).
12. according to Claim 8 or 9 or 10 described solar energy and biogas can complemental power-generation equipment, it is characterized in that: the steam output end of said regenerative heat exchanger (15) also is provided with the emergency switch valve (30) that links to each other with the external world.
13. according to Claim 8 or 9 or 10 described solar energy and biogas can complemental power-generation equipment; It is characterized in that: said solar heat collector comprises the settled date reflector (14) of a cat head solar boiler (13) and several and its coupling; The heat build-up pipe output terminal of said cat head solar boiler (13) links to each other with the thermal medium import of regenerative heat exchanger (15) through first switch valve (22), and the heat build-up pipe input end of said cat head solar boiler (13) links to each other with the thermal medium outlet of regenerative heat exchanger (15) through hydrothermal solution pump (17).
14. according to Claim 8 or 9 or 10 described solar energy and biogas can complemental power-generation equipment; It is characterized in that: said solar heat collector comprise some groups of solar energy evacuated heat build-up pipes (13 ') and with the grooved parabolic mirror (14 ') of its coupling; The output terminal of said solar energy evacuated heat build-up pipe (13 ') links to each other with the thermal medium import of regenerative heat exchanger (15) through first switch valve (22), and the input end of said solar energy evacuated heat build-up pipe (13 ') links to each other with the thermal medium outlet of regenerative heat exchanger (15) through hydrothermal solution pump (17).
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| CN2011104119181A CN102493931A (en) | 2011-12-12 | 2011-12-12 | Solar energy and methane energy complementation-based electricity generating equipment |
| PCT/CN2012/083103 WO2013086894A1 (en) | 2011-12-12 | 2012-10-17 | Solar energy and methane energy complementary power generation apparatus |
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| CN2011104119181A CN102493931A (en) | 2011-12-12 | 2011-12-12 | Solar energy and methane energy complementation-based electricity generating equipment |
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| CN105329964A (en) * | 2015-12-03 | 2016-02-17 | 河北工大太阳能设备有限公司 | High salt-bearing wastewater treatment process with efficient combination steam source |
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Application publication date: 20120613 |