WO2017214749A1 - 一种生物质能发电系统 - Google Patents

一种生物质能发电系统 Download PDF

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WO2017214749A1
WO2017214749A1 PCT/CN2016/000343 CN2016000343W WO2017214749A1 WO 2017214749 A1 WO2017214749 A1 WO 2017214749A1 CN 2016000343 W CN2016000343 W CN 2016000343W WO 2017214749 A1 WO2017214749 A1 WO 2017214749A1
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biomass
power generation
generation system
boiler
water
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PCT/CN2016/000343
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French (fr)
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周连惠
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周连惠
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/006—Methods of steam generation characterised by form of heating method using solar heat

Definitions

  • the invention relates to the field of bioelectric power generation technology, and in particular to a biomass power generation system.
  • Biomass refers to various organisms produced by photosynthesis using the atmosphere, water, land, etc., that is, all living organisms that can grow are commonly referred to as biomass. It includes plants, animals and microorganisms.
  • Forestry biomass resources refer to biomass energy provided by forest growth and forestry production processes, including firewood forests, scattered wood in forest tending and thinning operations, residual branches, leaves and sawdust, etc.; during wood harvesting and processing Branches, sawdust, sawdust, tips, slabs and truncations; waste from forestry by-products, such as shells and cores.
  • Agricultural biomass energy resources refer to agricultural crops (including energy crops); wastes in agricultural production processes, such as crop straws (corn straw, sorghum straw, wheat straw, straw, bean straw and cotton stalks) that remain in farmland when crops are harvested. Etc.; waste from the agricultural processing industry, such as the remaining rice husks in agricultural production.
  • Energy plants refer to a variety of plants used to provide energy, usually including herbal energy crops, oil crops, hydrocarbon plants and aquatic plants.
  • Biomass energy is a renewable resource. Biomass energy can be regenerated by photosynthesis of plants. It is equivalent to renewable energy and wind energy and solar energy. It is rich in resources and can ensure the sustainable use of energy. The sulfur content and nitrogen content of biomass are low, and SOX and NOX generated during combustion are less. When biomass is used as a fuel, since it requires carbon dioxide equivalent to the amount of carbon dioxide emitted by it, the net carbon dioxide emission to the atmosphere is approximately zero, which can effectively reduce the greenhouse effect. Biomass is the fourth largest energy source in the world, second only to coal, oil and natural gas. According to estimates by biologists, the earth's land produces between 1,000 and 125 billion tons of biomass per year, and the ocean produces 50 billion tons of biomass annually.
  • Biomass energy can exist in the form of biogas, compression-molded solid fuel, gasification gas production, gasification power generation, production of fuel alcohol, and thermal cracking to produce biodiesel.
  • the utilization of biomass energy mainly includes three ways: direct combustion, thermochemical conversion and biochemical conversion.
  • Thermochemical conversion of biomass refers to the technology of vaporizing, charring, pyrolyzing and catalytically liquefying biomass to produce gaseous fuels, liquid fuels and chemicals under certain temperatures and conditions.
  • Biochemical conversion of biomass includes biomass-biogas conversion and biomass-ethanol conversion.
  • Biogas conversion is an organic matter in an anaerobic environment, and a flammable mixed gas containing methane as a main component, that is, biogas, is produced by microbial fermentation.
  • Ethanol conversion is the production of ethanol by fermentation using raw materials such as saccharide, starch and cellulose.
  • Biomass power generation technology is a technology that converts biomass energy into electricity, mainly including agricultural and forestry waste power generation, garbage power generation and biogas power generation.
  • biomass power generation As a kind of renewable energy, biomass power generation has received more and more attention in the world, and it is receiving more and more government attention and civil support in China.
  • Biomass power generation collects, processes and reorganizes discarded agricultural and forestry residues, forms commodities, and prevents environmental pollution caused by straw burning in the field. It also changes the rural village appearance and is an energy source for building ecological civilization and achieving sustainable development in China.
  • the technical problem to be solved by the present invention is to provide a biomass power generation system, which fully utilizes the characteristics of the desert sun-soler to realize heating the water to a certain temperature through the solar water heater system, and then The preheated water is sent to the boiler of the biomass power generation system, and is further heated by the combustion of the biomass energy to boiling, generating 100 water vapor, and then entering the steam turbine-generator to generate electricity, which is energy-saving and environmentally friendly, and has low cost. Effectively solve the deficiencies of the prior art.
  • the present invention provides a biomass power generation system, comprising: a water supply pipe, a solar collector, a biomass boiler, and a steam turbine generator, wherein the water supply pipe is connected to a solar collector
  • the solar collector, the biomass boiler, and the steam turbine generator are connected in sequence.
  • the above biomass power generation system is characterized in that the temperature of the water output by the solar collector is 70 ° C - 80 ° C.
  • a biomass power generation system as described above characterized in that: the biomass water output of the biomass boiler The temperature is 100 °C.
  • the invention fully utilizes the sufficient characteristics of the desert sun-soler to realize heating the water to a certain temperature through the solar water heater system, and then sends the pre-heated water to the boiler of the biomass power generation system, and is further heated by the combustion of the biomass energy. To the boiling, it produces 100 kinds of water vapor, and then enters the steam turbine-generator to generate electricity. It is energy-saving and environmentally friendly, and the cost is low, which effectively solves the shortcomings of the prior art.
  • Figure 1 is a schematic view showing the structure of an embodiment of the present invention.
  • a biomass power generation system is characterized in that it comprises a water supply pipe 1, a solar collector 2, a biomass boiler 3 and a turbine generator 4, and the water supply pipe 1 and solar collectors
  • the solar collector 2, the biomass boiler 3 and the turbo generator 4 are connected in series.
  • the invention fully utilizes the sufficient characteristics of the desert sun-soler to realize the heating of the water to a certain temperature through the solar water heater system, and then sends the pre-heated water to the boiler of the biomass power generation system, further burning by the biomass energy. Heating to boiling, producing water vapor at 100 ° C, and then entering the turbine-generator to produce electricity, the result is that the original 70-80 ° C water is heated to 100 ° C, the required fuel is only half or even 1/3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

一种生物质能发电系统，其特征在于：包括供水管（1）、太阳能集热器（2）、生物质能锅炉（3）和汽轮发电机（4），所述供水管（1）与太阳能集热器（2）连接，所述太阳能集热器（2）、生物质能锅炉（3）和汽轮发电机（4）依次连接。本系统充分利用沙漠阳关充足的特点，实现通过太阳能热水器系统将水加热到一定的温度，然后将预热的水送到生物质能发电系统的锅炉内，进一步的被生物质能的燃烧加热到沸腾，产生100℃的水蒸气，然后进入汽轮机-发电机产生电力，其节能环保，成本较低，有效解决了现有技术的不足。

Description

一种生物质能发电系统 技术领域
本发明涉及生物发电技术领域，尤其涉及一种生物质能发电系统。
背景技术
生物质是指利用大气、水、土地等通过光合作用而产生的各种有机体，即一切有生命的可以生长的有机物质通称为生物质。它包括植物、动物和微生物。
林业生物质资源是指森林生长和林业生产过程提供的生物质能源，包括薪炭林、在森林抚育和间伐作业中的零散木材、残留的树枝、树叶和木屑等；木材采运和加工过程中的枝丫、锯末、木屑、梢头、板皮和截头等；林业副产品的废弃物，如果壳和果核等。
农业生物质能资源是指农业作物(包括能源作物)；农业生产过程中的废弃物，如农作物收获时残留在农田内的农作物秸秆(玉米秸、高粱秸、麦秸、稻草、豆秸和棉秆等)；农业加工业的废弃物，如农业生产过程中剩余的稻壳等。能源植物泛指各种用以提供能源的植物，通常包括草本能源作物、油料作物、制取碳氢化合物植物和水生植物等几类。
生物质能属可再生资源，生物质能由于通过植物的光合作用可以再生，与风能、太阳能等同属可再生能源，资源丰富，可保证能源的永续利用。生物质的硫含量、氮含量低、燃烧过程中生成的SOX、NOX较少。生物质作为燃料时，由于它在生长时需要的二氧化碳相当于它排放的二氧化碳的量，因而对大气的二氧化碳净排放量近似于零，可有效地减轻温室效应。生物质能是世界第四大能源，仅次于煤炭、石油和天然气。根据生物学家估算，地球陆地每年生产1000～1250亿吨生物质，海洋年生产500亿吨生物质。生物质能源的年生产量远远超过全世界总能源需求量，相当于世界总能耗的10倍。生物质能源可以以沼气、压缩成型固体燃料、气化生产燃气、气化发电、生产燃料酒精、热裂解生产生物柴油等形式存在。
生物质能的利用主要有直接燃烧、热化学转换和生物化学转换等3种途径。生物质的热化学转换是指在一定的温度和条件下，使生物质汽化、炭化、热解和催化液化，以生产气态燃料、液态燃料和化学物质的技术。生物质的生物化学转换包括有生物质-沼气转换和生物质-乙醇转换等。沼气转化是有机物质在厌氧环境中，通过微生物发酵产生一种以甲烷为主要成分的可燃性混合气体即沼气。乙醇转换是利用糖质、淀粉和纤维素等原料经发酵制成乙醇。
生物质发电技术是将生物质能源转化为电能的一种技术，主要包括农林废物发电、垃圾发电和沼气发电等。作为一种可再生能源，生物质能发电在国际上越来越受到重视，在我国也越来越受到政府的关注和民间的拥护。生物质发电将废弃的农林剩余物收集、加工整理，形成商品，及防止秸秆在田间焚烧造成的环境污染，又改变了农村的村容村貌，是我国建设生态文明、实现可持续发展的能源战略选择之一。但是，由于生物质燃烧值比较低，需要较多的原料转化为水蒸气发电，特别是在沙漠地区，植被非常稀缺，因此导致生物质能的原料不足，导致沙漠地区的发电机组，无法满负荷运行，极大影响了经济效益，甚至有些发电厂无原料而停产或者半停产。
发明内容
有鉴于现有技术的上述缺陷，本发明所要解决的技术问题是提供一种生物质能发电系统，充分利用沙漠阳关充足的特点，实现通过太阳能热水器系统将水加热到一定的温度，然后将预热的水送到生物质能发电系统的锅炉内，进一步的被生物质能的燃烧加热到沸腾，产生100的水蒸气，然后进入汽轮机-发电机产生电力，其节能环保，成本较低，有效解决了现有技术的不足。
为实现上述目的，本发明提供了一种生物质能发电系统，其特征在于：包括供水管、太阳能集热器、生物质能锅炉和汽轮发电机，所述供水管与太阳能集热器连接，所述太阳能集热器、生物质能锅炉和汽轮发电机依次连接。
上述的一种生物质能发电系统，其特征在于：所述太阳能集热器输出的水温度为70℃-80℃。
上述的一种生物质能发电系统，其特征在于：所述生物质能锅炉输出的水 温度为100℃。
本发明的有益效果是：
本发明充分利用沙漠阳关充足的特点，实现通过太阳能热水器系统将水加热到一定的温度，然后将预热的水送到生物质能发电系统的锅炉内，进一步的被生物质能的燃烧加热到沸腾，产生100的水蒸气，然后进入汽轮机-发电机产生电力，其节能环保，成本较低，有效解决了现有技术的不足。
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本发明的目的、特征和效果。
附图说明
图1是本发明的实施例的结构示意图。
具体实施方式
如图1所示，一种生物质能发电系统，其特征在于：包括供水管1、太阳能集热器2、生物质能锅炉3和汽轮发电机4，所述供水管1与太阳能集热器2连接，所述太阳能集热器2、生物质能锅炉3和汽轮发电机4依次连接。
本发明充分利用沙漠阳关充足的特点，实现通过太阳能热水器系统，将水加热到一定的温度，然后将预热的水送到生物质能发电系统的锅炉内，进一步的被生物质能的燃烧加热到沸腾，产生100℃的水蒸气，然后进入汽轮机-发电机产生电力这样的结果就是原来由70-80℃的水加热到100℃，所需的燃料只要一半，甚至1/3。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本发明的构思做出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (3)

  1. 一种生物质能发电系统，其特征在于：包括供水管(1)、太阳能集热器(2)、生物质能锅炉(3)和汽轮发电机(4)，所述供水管(1)与太阳能集热器(2)连接，所述太阳能集热器(2)、生物质能锅炉(3)和汽轮发电机(4)依次连接。
  2. 如权利要求1所述的一种生物质能发电系统，其特征在于：所述太阳能集热器(2)输出的水温度为70℃-80℃。
  3. 如权利要求1所述的一种生物质能发电系统，其特征在于：所述生物质能锅炉(3)输出的水温度为100℃。
PCT/CN2016/000343 2016-06-14 2016-06-27 一种生物质能发电系统 WO2017214749A1 (zh)

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CN106761961A (zh) * 2016-12-14 2017-05-31 陆丽曼 一种生物质能蒸汽发电装置
WO2022006695A1 (zh) * 2020-07-06 2022-01-13 周连惠 一种建于沙漠的海上浮冰利用系统及其方法
WO2022082403A1 (zh) * 2020-10-20 2022-04-28 周连惠 一种森林林木运输系统及其运输方法

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CN203532173U (zh) * 2013-09-03 2014-04-09 康毓贤 地热能、太阳能、生物质能综合利用发电系统
CN203867641U (zh) * 2014-04-11 2014-10-08 武汉凯迪工程技术研究总院有限公司 生物质锅炉低温省煤器的联合发电系统

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