CN210087420U - Biomass gasification organic Rankine cycle system - Google Patents
Biomass gasification organic Rankine cycle system Download PDFInfo
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- CN210087420U CN210087420U CN201920781618.4U CN201920781618U CN210087420U CN 210087420 U CN210087420 U CN 210087420U CN 201920781618 U CN201920781618 U CN 201920781618U CN 210087420 U CN210087420 U CN 210087420U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a biomass gasification organic Rankine cycle system, which comprises a gasification generating device, a waste heat recycling power generation system and a high-temperature combustion power generation system, wherein a gas output pipeline of the gasification generating device is connected with the high-temperature combustion power generation system to provide combustion raw materials for the high-temperature combustion power generation system; and a waste heat recovery power generation system is arranged on the gas output pipeline, and the waste heat recovery system generates power by using high-temperature gas generated by the gasification generation device. This practicality utilizes waste heat recovery power generation system to cool down and utilize this energy to generate electricity gasification gas, falls into two-stage power generation system in high temperature combustion power generation system, and the grading of energy is utilized to make full use of surplus energy behind the one-level electricity generation.
Description
Technical Field
The utility model belongs to the technical field of new forms of energy electricity generation, especially, relate to an organic rankine cycle system of biomass gasification.
Background
Biomass gasification is a process of converting hydrocarbons constituting biomass into combustible gases containing carbon monoxide, hydrogen, and the like under certain thermodynamic conditions. The gasification comprises three processes, namely a thermal decomposition process, a combustion process and a reduction process. The gasified product is combustible gas containing hydrogen, carbon monoxide and low molecular hydrocarbon.
The biomass gasification power generation technology is a unique way for biomass gasification and utilization, and the biomass gasification power generation has many advantages:
one is that the technology has sufficient flexibility. Because the biomass gasification power generation can adopt an internal combustion engine, a gas turbine or even a waste heat boiler and a steam power generation system, proper power generation equipment can be selected according to the scale, and the reasonable power generation efficiency can be ensured on any scale. The flexibility of the technology can well meet the characteristic of biomass dispersion utilization. And secondly, the cleaning agent has better cleaning property. The biomass is renewable energy, can effectively reduce the emission of harmful gases such as CO, SO2 and the like, and the gasification process generally has lower temperature (about 700 DEG)～900 c), the amount of NOx produced is small, so NO emissions can be effectively controlled. And thirdly, the economy is realized. The flexibility of the biomass gasification power generation technology can ensure that the technology has better economy in small scale, and meanwhile, the gas power generation process is simple, the equipment is compact, and the biomass gasification power generation technology is also more suitable for other renewable energy power generation technologiesThe resources are smaller.
However, a great deal of energy is wasted in the biomass gasification power generation process, and how to more fully utilize the energy is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a biomass gasification organic Rankine cycle system according to the problem that exists among the prior art, combines biomass gasification technique and organic Rankine cycle ingenious many times, and structural design is reasonable, and the thermal efficiency is high, the irreversible loss among the biomass gasification process that has significantly reduced.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a biomass gasification organic Rankine cycle system comprises a gasification generating device, a waste heat recycling power generating system and a high-temperature combustion power generating system, wherein a gas output pipeline of the gasification generating device is connected with the high-temperature combustion power generating system and provides combustion raw materials for the high-temperature combustion power generating system;
a waste heat recovery power generation system is arranged on the gas output pipeline, and the waste heat recovery system generates power by using high-temperature gas generated by the gasification generation device;
further, the gasification generating device comprises a biomass gasification furnace, and the feed end of the biomass gasification furnace is sequentially connected with a solid compressor and a feeding device;
further, the waste heat recovery power generation system comprises an evaporator A connected in series with the gas output pipeline, and an outlet of the evaporator A is sequentially connected with inlets of an expander A, a condenser A, a working medium pump A, a heat regenerator and the evaporator A; the expansion machine A is connected with a generator A;
furthermore, a water washing purifier is arranged between the gas output pipeline and the high-temperature combustion power generation system;
further, the outlet of the washing purifier is also connected with a gas storage tank for storing the purified combustible gas;
further, the washing purifier and the heat regenerator are connected to form a circulation loop;
further, the method can be used for preparing a novel materialThe high-temperature combustion power generation system comprises a combustion chamber, an expander B, an evaporator B and CO which are connected in sequence2The recovery device is connected with the expander B and the generator B;
furthermore, the evaporator B is also connected with a second-stage power generation system in parallel, the second-stage power generation system comprises an expander C, a condenser C and a working medium pump C which are connected in sequence, and the expander C is connected with a generator C.
This practical beneficial effect:
the utility model discloses a biomass gasification organic Rankine cycle system has realized the combination with biomass gasification technique and organic Rankine cycle technique, and waste heat recovery system make full use of the heat of the gas that gasifies out has reduced the calorific loss of the gas that gasifies out at transportation process, cools off the gas to required temperature simultaneously. The gas that gasifies comes out fully burns in high temperature combustion power generation system and realizes the one-level electricity generation, and after the one-level electricity generation, the exhaust steam behind the make full use of one-level electricity generation realizes the second grade electricity generation, and the organic rankine cycle system of biomass gasification that this utility designed is compact structure, and the design is simple, greatly increased the generating efficiency, had better cleanliness factor and economic nature simultaneously.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
in the figure, 1, a feeding device, 2, a conveying belt, 3, a solid waste compressor, 4, a biomass gasification furnace, 5, an air inlet, 6, evaporators A and 7, expansion machines A and 8, generators A and 9, condensers A and 10, working medium pumps A and 11, a heat regenerator, 12, a water pump, 13, a water washing purifier, 14, a combustion chamber, 15, expansion machines B and 16, generators B and 17, evaporators B and 18, CO2The system comprises a recovery device 19, expanders C and 20, generators C and 21, condensers C and 22, working medium pumps C and 23 and an air storage tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of, and not restrictive on, the present application.
As shown in fig. 1, the organic rankine cycle system for biomass gasification in accordance with the present invention comprises a feeding device 1, the feeding device 1 is connected to a feeding port of a solid waste compressor 3 through a conveying belt 2, and an outlet of the solid waste compressor 3 is connected to a biomass gasification furnace 4; in this embodiment, the biomass gasification furnace 4 is a fixed bed gasification furnace, and a plurality of air inlets 5 are uniformly distributed at the bottom end of the gasification furnace.
The outlet of the biomass gasification furnace 4 is connected with the gas inlet of the water washing purifier 13 through a gas output pipeline, the gas output pipeline is connected with an evaporator A6 in series, the working medium outlet of the evaporator A6 is sequentially connected with the working medium inlets of an expander A7, a condenser A9, a working medium pump A10, a heat regenerator 11 and an evaporator A6, and the expander A7 is connected with a generator A8 to form a closed cycle waste heat recovery power generation system.
The gas outlet of the water washing purifier 13 is respectively connected with the gas storage tank 23 and the combustion chamber 14, so that the purified combustible gas can be stored in the gas storage tank 23, and the redundant combustible gas can be sent to the combustion chamber 14 for combustion. The combustor 14 is connected in sequence with an expander B15, an evaporator B17 and CO2The recovery device 18 is characterized in that an expander B15 is connected with a generator B16 to realize first-stage combustion power generation; in order to fully utilize the heat of the exhaust steam generated after the first-stage combustion power generation, a second-stage power generation system which is sequentially connected with an expansion machine C19, a condenser C21 and a working medium pump C22 is also connected in series at the two ends of the evaporator B17, and the expansion machine C19 is connected with a generator C20.
In order to explain the technical scheme protected by the utility model more clearly, the following is further explained in conjunction with the working process of the utility model:
biomass in the feeding device 1 is input into a solid waste compressor 3 through a conveying belt 2, is compressed by the solid waste compressor 3 and then is sent into a biomass gasification furnace 4 for thermochemical gasification, and oxygen is provided through an air inlet 5 in the gasification process. High-temperature gas product (H) gasified by biomass gasification furnace 42And CO) exchanges heat with the evaporator A6 and enters the water washing purifier 13 for purification. A part of the purified combustible gas is stored in the gas tank 23, and the remaining part is sent to the combustion chamber 14 to be combusted.
Meanwhile, after heat exchange is carried out on the evaporator A6, the circulating working medium in the evaporator A6 enters the expander A7 to expand and do work and drive the generator A8 to generate electricity, exhaust steam after doing work enters the condenser A9 and is condensed into liquid working medium, and then the liquid working medium is pumped into the heat regenerator 11 by the working medium pump A10, so that the liquid working medium firstly absorbs a part of heat from the water for purifying fuel gas and then enters the evaporator A6 to carry out next circulation, and waste heat recovery and power generation are completed.
The combustion chamber 14 is fully combusted, then the high-temperature gas enters an expander B15 to do work and drive a generator B16 to generate electricity, and exhaust steam of the expander B15 enters CO after heat is released by an evaporator B172And (5) recycling by using a recycling device. The circulating working medium in the evaporator B17 enters the expander C19 to do work and drive the generator C20 to generate power after absorbing heat, the exhaust steam after doing work enters the condenser C21 and enters the evaporator B17 again through the working medium pump C22 after being condensed, primary power generation and secondary power generation are completed, and the residual heat after combustion power generation is fully utilized.
And CO2CO recovered in the recovery unit2The power generation system can be used in various industries such as petroleum mining, metal smelting, fire fighting, planting and the like, and all levels of energy and products of the power generation system are fully utilized.
The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and implement the same, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (8)
1. The biomass gasification organic Rankine cycle system is characterized by comprising a gasification generating device, a waste heat recycling power generating system and a high-temperature combustion power generating system, wherein a gas output pipeline of the gasification generating device is connected with the high-temperature combustion power generating system to provide combustion raw materials for the high-temperature combustion power generating system;
and a waste heat recovery power generation system is arranged on the gas output pipeline, and the waste heat recovery power generation system generates power by using high-temperature gas generated by the gasification generation device.
2. The biomass gasification organic Rankine cycle system according to claim 1, wherein the gasification generation device comprises a biomass gasification furnace (4), and a feeding end of the biomass gasification furnace (4) is connected with a solid compressor and a feeding device in sequence.
3. The biomass gasification organic Rankine cycle system according to claim 1, wherein the waste heat recovery power generation system comprises an evaporator A (6) connected in series on a gas output pipeline, and an outlet of the evaporator A (6) is connected with an expander A (7), a condenser A (9), a working medium pump A (10), a heat regenerator (11) and an inlet of the evaporator A (6) in sequence; the expander A (7) is connected with a generator A (8).
4. The biomass gasification orc system according to claim 1 or 3, wherein a water washing purifier (13) is arranged between the gas output pipeline and the high-temperature combustion power generation system.
5. The biomass gasification organic Rankine cycle system according to claim 4, wherein the outlet of the water washing purifier (13) is further connected with a gas storage tank (23) for storing the purified combustible gas.
6. The biomass gasification organic Rankine cycle system according to claim 5, wherein the connection between the water scrubber purifier (13) and the regenerator (11) forms a cycle loop.
7. The biomass gasification organic Rankine cycle system according to claim 1, wherein the high temperature combustion power generation system comprises a combustion chamber (14), an expander B (15), an evaporator B (17) and CO connected in sequence2And a recovery device (18), wherein the expander B (15) is connected with a generator B (16).
8. The biomass gasification organic Rankine cycle system according to claim 7, wherein the evaporator B (17) is further connected with a second-stage power generation system in parallel, the second-stage power generation system comprises an expander C (19), a condenser C (21) and a working medium pump C (22) which are connected in sequence, and the expander C (19) is connected with a generator C (20).
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| CN201920781618.4U CN210087420U (en) | 2019-05-28 | 2019-05-28 | Biomass gasification organic Rankine cycle system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259534A (en) * | 2019-05-28 | 2019-09-20 | 江苏大学 | A kind of gasification of biomass organic rankine cycle system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259534A (en) * | 2019-05-28 | 2019-09-20 | 江苏大学 | A kind of gasification of biomass organic rankine cycle system |
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