CN204226129U - Solar energy thermal-power-generating comprehensive energy utilizes system - Google Patents
Solar energy thermal-power-generating comprehensive energy utilizes system Download PDFInfo
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- CN204226129U CN204226129U CN201420679541.7U CN201420679541U CN204226129U CN 204226129 U CN204226129 U CN 204226129U CN 201420679541 U CN201420679541 U CN 201420679541U CN 204226129 U CN204226129 U CN 204226129U
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- 239000007789 gas Substances 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000000855 fermentation Methods 0.000 claims abstract description 31
- 230000004151 fermentation Effects 0.000 claims abstract description 31
- 238000010248 power generation Methods 0.000 claims abstract description 31
- 238000000746 purification Methods 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims abstract description 6
- 238000000605 extraction Methods 0.000 claims description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- 238000005338 heat storage Methods 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 7
- 239000003345 natural gas Substances 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 2
- 239000010902 straw Substances 0.000 abstract description 6
- 239000002028 Biomass Substances 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000002737 fuel gas Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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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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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a kind of solar energy thermal-power-generating comprehensive energy and utilize system.It includes conduction oil circulation connected system, steam/water circulating connected system, biogas fermentation and purifying plant and gas fired boiler connected system; Advantage is: utilize gas fired boiler by steam from 370 DEG C, 10.3Mpa is heated to 535 DEG C, 9.3Mpa, steam turbine efficiency of thermal cycle is improved, thus improves traditional trough type solar power generation efficiency.The fuel that in the utility model, gas fired boiler uses simultaneously is biological fuel gas, it is the renewable energy sources of being produced by the purification of rural area biomass ferment, achieving described system all adopts renewable energy sources on the one hand, decrease the usage mode that straw from village directly burns on the other hand, alleviate atmospheric environmental pressure.By utilizing the waste heat in gas fired boiler tail gas, improve the gas fired boiler thermal efficiency, simultaneously for biogas fermentation insulation also achieves recycling of energy.
Description
Technical Field
The utility model relates to a solar thermal energy power generation comprehensive energy utilization system especially relates to solar thermal energy power generation slot type thermal power generation high temperature high pressure power generation technique.
Background
Solar thermal power generation and light concentration type solar thermal power generation (hereinafter referred to as solar thermal power generation), that is, a technology of converting solar radiation energy into heat energy by using a light concentration heat collector and continuously generating power through thermodynamic cycle.
The existing solar thermal power generation system in the world roughly comprises: the system comprises a tower system, a trough system and a disc system, wherein the trough system is commercialized in the early 90 s of the 20 th century, and the other two systems are currently in the commercialization demonstration stage and have great application prospects.
The system mainly relates to trough type solar thermal power generation, and the trough type solar thermal power generation is developed most mature in the existing solar thermal power generation mode. However, the maximum operation temperature of the conventional trough type thermal power generation heat collection field is 400 ℃, superheated steam with the temperature of 371 ℃ can be provided only, and the steam parameters are lower than those of conventional fire and tower type thermal power generation, so that the trough type thermal power generation is low in efficiency relative to other thermal power generation forms.
By combining with other forms of energy generation, the efficiency of solar trough thermal power generation can be improved. For example, in the form of solar energy-gas combined cycle power generation, the combined cycle technology utilizes the waste heat of the tail gas of the gas turbine system to cooperate with a solar energy heat collecting system to jointly generate steam to drive a steam turbine to generate power. The combined cycle system is high in efficiency, but the specific gravity of the natural gas fuel is high, so that the combined cycle power generation mode is not economical for the countries lack of natural gas. At present, the research on the aspect is carried out at home and abroad. Because China belongs to coal-fired countries and natural gas resources are relatively deficient, research on the aspect is still few.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solar thermal energy power generation comprehensive energy utilization system, it can improve solar slot type thermal power generation system's thermodynamic cycle efficiency, improves slot type thermal power generation overall efficiency, improves the generated energy, reduces the price of electricity on the net, is favorable to slot type thermal power generation system to promote in the relative general area of solar energy resource. And simultaneously, the utility model discloses a gas is biomass gas, obtains by organic matter fermentation purification such as straw and cow dung, has realized rural straw clean utilization, has realized industry and agricultural circular economy. The utility model discloses the whole renewable energy that is of practical energy has realized energy saving and emission reduction's purpose.
In order to realize the purpose, the solar trough type thermal power generation comprehensive energy utilization system comprises a heat conduction oil circulation connection system, a steam-water circulation connection system, a methane fermentation and purification device and a gas boiler connection system; wherein,
the heat-conducting oil circulation connecting system comprises the following components: the solar steam heat collector comprises a groove type light-gathering heat collection field, a heat storage system, a solar steam generation system, a heat conduction oil pipeline, a heat collection pipeline and an expansion tank; the system comprises a trough type light-gathering heat collection field, a heat conduction oil pipeline, a heat collection pipeline, a steam generator, an expansion tank and a heat collection pipeline, wherein the trough type light-gathering heat collection field is respectively connected with an oil salt heat exchanger of a heat storage system and a superheater of a solar steam generation system through heat conduction oil pipelines;
the steam-water circulation connecting system comprises the following components: the solar steam generation system, the gas boiler, the steam turbine generator unit, the direct air cooling system and the steam extraction heat regeneration system;
the high-pressure water feeder preheater of the steam extraction heat recovery system is connected with the preheater of the solar steam generation system, the preheater of the solar steam generation system is connected with the steam generator of the solar steam generation system, the steam generator of the solar steam generation system is connected with the superheater of the solar steam generation system, the superheater of the solar steam generation system is connected with the steam heating pipeline of the gas boiler, the outlet of the steam heating pipeline of the gas boiler is connected with the main air door of the turbo generator unit, the exhaust device of the turbo generator unit is connected with the air inlet pipeline of the direct air cooling system, the condensed water pipeline of the direct air cooling system is connected with the condensed water pump of the steam extraction heat recovery system, and the condensed water pump of the steam extraction heat recovery system is connected with the low-pressure water feeding heater of the steam extraction heat recovery system, the low-pressure water supply heater of the steam extraction heat recovery system is connected with the deaerator of the steam extraction heat recovery system, the deaerator of the steam extraction heat recovery system is connected with the water supply pump of the steam extraction heat recovery system, and the water supply pump of the steam extraction heat recovery system is connected with the high-pressure water supply preheater of the steam extraction heat recovery system;
the biogas fermentation and purification device and gas boiler connecting system comprises the following components: the biogas fermentation and purification device and the gas boiler are arranged in the gas boiler; the gas storage tank of the biogas fermentation and purification device is connected with a gas inlet of a gas boiler through a pipeline, and gas is combusted in the gas boiler; and a fermentation tank heat-preservation water pipe of the biogas fermentation and purification device is connected with a heating pipeline of the gas boiler, and heat-preservation water used by the fermentation tank is heated by smoke of the gas boiler.
And simultaneously, the utility model discloses the fuel that gas boiler used is not only limited to the biogas, also can use the natural gas through the pipeline supply.
The utility model has the advantages that: the gas boiler is utilized to heat the steam from 370 ℃ and 10.3Mpa to 535 ℃ and 9.3Mpa, so that the thermodynamic cycle efficiency of the steam turbine is improved, and the efficiency of the traditional trough type solar thermal power generation is improved. Simultaneously the utility model discloses the fuel that well gas boiler used is biomass gas, is the renewable energy through rural living beings fermentation purification production, has realized on the one hand the system is whole to adopt renewable energy, and on the other hand has reduced rural straw direct combustion's use mode, has alleviateed atmospheric environment pressure. By utilizing the waste heat in the tail gas of the gas boiler, the heat efficiency of the gas boiler is improved, and meanwhile, the energy recycling is realized for methane fermentation and heat preservation.
Drawings
Fig. 1 is the overall structure schematic diagram of the solar thermal power generation comprehensive energy utilization system according to the embodiment of the utility model.
The system comprises a groove type light-gathering heat-collecting field 1, a heat-storing system 2, a solar steam generating system 3, a gas boiler 4, a turbo-generator unit 5, a direct air cooling system 6, a methane fermentation and purification device 7, a steam extraction heat-returning system 8, a heat-conducting oil pipeline 9, a heat-collecting pipeline 10, an expansion tank 11 and a steam heating pipe 12.
Detailed Description
The following description is a preferred embodiment of the present invention, and does not limit the scope of the present invention.
The solar thermal power generation comprehensive energy utilization system comprises a heat conduction oil circulation connecting system, a steam-water circulation connecting system, a methane fermentation and purification device and a gas boiler connecting system; wherein,
the heat-conducting oil circulation connecting system comprises the following components: the solar steam heat collector comprises a groove type light-gathering heat collection field 1, a heat storage system 2, a solar steam generation system 3, a heat conducting oil pipeline 9, a heat collecting pipeline 10, an expansion tank 11 and a steam heating pipe 12;
the trough type light-gathering heat collection field 1 is respectively connected with an oil-salt heat exchanger 2.1 of the heat storage system 2 and a superheater 3.1 of the solar steam generation system 3 through a heat conduction oil pipeline 9, the oil-salt heat exchanger 2.1 of the heat storage system 2 is connected with a heat collection pipeline 10 of the trough type light-gathering heat collection field 1 through the heat conduction oil pipeline 9, the superheater 3.1 of the solar steam generation system 3 is connected with a steam generator 3.2 of the solar steam generation system 3, the steam generator 3.2 of the solar steam generation system 3 is connected with a preheater 3.3 of the solar steam generation system 3, the preheater 3.3 of the solar steam generation system 3 is connected with an expansion tank 11, and the expansion tank 11 is connected with the heat collection pipeline 10 of the trough type light-gathering heat collection field 1;
the steam-water circulation connecting system comprises the following parts: the system comprises a solar steam generation system 3, a gas boiler 4, a steam turbine generator unit 5, a direct air cooling system 6 and a steam extraction heat regeneration system 8; a high-pressure water feeder preheater 8.1 of the steam extraction heat recovery system 8 is connected with a preheater 3.3 of the solar steam generation system 3, the preheater 3.3 of the solar steam generation system 3 is connected with a steam generator 3.2 of the solar steam generation system (3), the steam generator 3.2 of the solar steam generation system 3 is connected with a superheater 3.1 of the solar steam generation system 3, the superheater 3.1 of the solar steam generation system 3 is connected with a steam heating pipeline 12 of the gas boiler 4, a steam heating pipeline outlet 12.1 of the gas boiler 4 is connected with a main air door 5.1 of the turbo generator unit 5, an exhaust device 5.2 of the turbo generator unit 5 is connected with an air inlet pipeline 6.1 of the direct air cooling system 6, a condensed water pipeline 6.2 of the direct air cooling system 6 is connected with a condensed water pump 8.2 of the steam extraction heat recovery system 8, the condensed water pump 8.2 of the steam extraction heat recovery system 8 is connected with a low-pressure water feeding heater 8.3 of the steam extraction heat recovery system 8, a low-pressure water supply heater 8.3 of the steam extraction regenerative system 8 is connected with a deaerator 8.4 of the steam extraction regenerative system 8, the deaerator 8.4 of the steam extraction regenerative system 8 is connected with a water supply pump 8.5 of the steam extraction regenerative system 8, and the water supply pump 8.5 of the steam extraction regenerative system 8 is connected with a high-pressure water supply preheater 8.1 of the steam extraction regenerative system 8;
biogas fermentation and purification device and gas boiler connected system include as follows: a biogas fermentation and purification device 7 and a gas boiler 4; a gas storage tank 7.1 of the biogas fermentation and purification device 7 is connected with a gas inlet 4.1 of the gas boiler 4 through a pipeline, and gas is combusted in the gas boiler 4; the fermentation tank heat preservation water pipe 7.2 of the biogas fermentation and purification device 7 is connected with the heating pipeline of the gas boiler 4, and the heat preservation water used by the fermentation tank 7.3 is heated by the flue gas of the gas boiler 4.
The trough type light-gathering heat-collecting field 1 consists of a plurality of solar trough type light-gathering loops, each light-gathering loop consists of a fixed number of light-gathering heat collectors, and a heat transfer working medium is generally heat conduction oil and can also use fused salt; the heat collection field is connected with the solar steam generation system 3 through a pipeline for heat exchange, and heat conduction oil returns to the heat collection field 1 after heat exchange to form a complete heat conduction oil circulation loop. The heat collected by the groove type condensation heat collection field 1 is transferred to the solar steam generation system 3, the solar steam generation system 3 generates superheated steam with the temperature of 370 ℃ and the pressure of 10.3Mpa, the superheated steam is heated to the temperature of 535 ℃ and the pressure of 9.3Mpa through the biomass gas boiler 4, new steam enters the steam turbine to do work, exhaust steam after the work is done becomes condensate water through the direct air cooling system 6, then the condensate water is sent to the heaters and the deaerator at all stages through the feed water pump, and the condensate water enters the solar steam generation system 3 after reaching the feed water temperature, so that a complete steam-water circulation. The heat storage system prolongs the power generation time of the system at night or when the sunlight is insufficient, and the heat stored in the heat storage system is from the surplus solar heat when the sunlight is sufficient in the daytime.
According to the utility model discloses an aspect, the fuel that biological gas boiler used is the biogas of biomass biogas fermentation purification system production, and this fermentation purification system synthesizes straw chemistry quick pretreatment technique, the high-efficient fermentation technique of straw and washing marsh gas purification technique, and the technique is mature, advanced. The methane content of the biogas reaches over 96 percent. The use of the biogas realizes that the utility model adopts renewable energy sources.
According to the utility model discloses an aspect, the key of system lies in utilizing the gas superheated boiler to further improve steam temperature, and steam is heated through arranging pipeline on the gas superheated boiler, and the boiler flue gas still has the waste heat behind the heating steam, and the flue gas waste heat is used for keeping warm for the biogas fermentation jar, improves gas superheated boiler thermal efficiency.
Claims (2)
1. The solar thermal power generation comprehensive energy utilization system is characterized by comprising a heat conduction oil circulation connecting system, a steam-water circulation connecting system, a methane fermentation and purification device and a gas boiler connecting system; wherein,
the heat-conducting oil circulation connecting system comprises the following components: the solar steam heat collector comprises a groove type light-gathering heat collection field (1), a heat storage system (2), a solar steam generation system (3), a heat conducting oil pipeline (9), a heat collecting pipe pipeline (10) and an expansion tank (11); the trough type light-gathering heat collection field (1) is respectively connected with an oil-salt heat exchanger (2.1) of the heat storage system (2) and a superheater (3.1) of the solar steam generation system (3) through a heat conduction oil pipeline (9), the oil-salt heat exchanger (2.1) of the heat storage system (2) is connected with a heat collection pipeline (10) of the trough type light-gathering heat collection field (1) through the heat conduction oil pipeline (9), the superheater (3.1) of the solar steam generation system (3) is connected with the steam generator (3.2) of the solar steam generation system (3), the steam generator (3.2) of the solar steam generation system (3) is connected with the preheater (3.3) of the solar steam generation system (3), a preheater (3.3) of the solar steam generation system (3) is connected with the expansion tank (11), the expansion tank (11) is connected with a heat collecting pipe (10) of the groove type light-gathering heat collecting field (1);
the steam-water circulation connecting system comprises the following components: the system comprises a solar steam generation system (3), a gas boiler (4), a steam turbine generator unit (5), a direct air cooling system (6) and a steam extraction heat regeneration system (8);
a high-pressure water feeder preheater (8.1) of the steam extraction heat recovery system (8) is connected with a preheater (3.3) of the solar steam generation system (3), the preheater (3.3) of the solar steam generation system (3) is connected with a steam generator (3.2) of the solar steam generation system (3), the steam generator (3.2) of the solar steam generation system (3) is connected with a superheater (3.1) of the solar steam generation system (3), the superheater (3.1) of the solar steam generation system (3) is connected with a steam heating pipeline (12) of the gas boiler (4), a steam heating pipeline outlet (12.1) of the gas boiler (4) is connected with a main air valve (5.1) of the turbo generator unit (5), an exhaust device (5.2) of the turbo generator unit (5) is connected with an air inlet pipeline (6.1) of the direct air cooling system (6), a condensed water pipeline (6.2) of the direct air cooling system (6) is connected with a condensed water pump (8.2) of the steam extraction heat recovery system (8), the condensed water pump (8.2) of the steam extraction heat recovery system (8) is connected with a low-pressure water supply heater (8.3) of the steam extraction heat recovery system (8), a low-pressure water supply heater (8.3) of the steam extraction heat recovery system (8) is connected with a water supply pump (8.4) of the steam extraction heat recovery system (8), a deaerator (8.4) of the steam extraction heat recovery system (8) is connected with a water supply pump (8.5) of the steam extraction heat recovery system (8), and the water supply pump (8.5) of the steam extraction heat recovery system (8) is connected with a high-pressure water supply preheater (8.1) of the steam extraction heat recovery system (8);
the biogas fermentation and purification device and gas boiler connecting system comprises the following components: the biogas fermentation and purification device (7) and the gas boiler (4); a gas storage tank (7.1) of the biogas fermentation and purification device (7) is connected with a gas inlet (4.1) of a gas boiler (4) through a pipeline, and gas is combusted in the gas boiler (4); and a fermentation tank heat-preservation water pipe (7.2) of the biogas fermentation and purification device (7) is connected with a heating pipeline of the gas boiler (4), and heat-preservation water used by the fermentation tank (7.3) is heated by smoke of the gas boiler (4).
2. Solar thermal power generation integrated energy utilization system according to claim 1, characterized in that the fuel used by the gas boiler (4) is biogas or natural gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679541.7U CN204226129U (en) | 2014-11-05 | 2014-11-05 | Solar energy thermal-power-generating comprehensive energy utilizes system |
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| CN201420679541.7U CN204226129U (en) | 2014-11-05 | 2014-11-05 | Solar energy thermal-power-generating comprehensive energy utilizes system |
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| CN204226129U true CN204226129U (en) | 2015-03-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815837A (en) * | 2015-05-21 | 2015-08-05 | 大连爱特流体控制有限公司 | Ecological new countryside energy and environment integrated device |
| CN109776121A (en) * | 2019-02-26 | 2019-05-21 | 贺利兵 | A kind of agricultural wastes biogas slurry fermentation rainer |
-
2014
- 2014-11-05 CN CN201420679541.7U patent/CN204226129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815837A (en) * | 2015-05-21 | 2015-08-05 | 大连爱特流体控制有限公司 | Ecological new countryside energy and environment integrated device |
| CN109776121A (en) * | 2019-02-26 | 2019-05-21 | 贺利兵 | A kind of agricultural wastes biogas slurry fermentation rainer |
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Effective date of registration: 20180404 Address after: 010090 the Inner Mongolia Autonomous Region Chile Saihan District of Hohhot City, Sichuan Street Green Central Square Sea block A 1 room 1218-1223 unit 12 Patentee after: Inner Mongolia Hengrui new energy Co., Ltd. Address before: 010060 the Inner Mongolia Autonomous Region Hohhot city Hailar East Street dawning building 1225 room Patentee before: Jiang Yanbo |