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Biomass distributed combined cooling heating and power energy system

A technology for co-production of energy and biomass, applied to lighting and heating equipment, machines using waste heat, and machine operation methods to achieve the effects of improving combustion efficiency, energy utilization efficiency, and utilization efficiency

Inactive Publication Date: 2012-09-19
ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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  • Application Information

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Problems solved by technology

But the current power of these distributed cogeneration systems mainly comes from fossil fuels such as natural gas and coal. For example, the power of the fuel-driven power machine in the patent No. 200810204142.4 (application date 2008.12.5) comes from gas, coal, etc. Fossil fuels, in addition, some cogeneration systems are powered by wind energy, etc., such as patent No. 200710098469.3 (application date 2007.4.18), which introduces a cogeneration system powered by wind energy , the distributed cooling, heating, power polygeneration system powered by the flue gas after the combustion of biomass solid briquette fuel has not yet been discovered

Method used

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  • Biomass distributed combined cooling heating and power energy system

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Embodiment

[0030] Example: Biomass distributed cooling, heating and power polygeneration energy system for a primary and secondary school in the suburbs of Beijing

[0031] According to the present invention, a biomass distributed cooling, heating and power polygeneration energy system is established in a primary and secondary school in the suburbs of Beijing, with a total construction area of ​​6000 square meters. Before the biomass distributed cooling, heating, power polygeneration energy system was established, the There is a 700kw biomass boiler with an annual consumption of 2,500 tons of briquette fuel, a heating time of 120 days, and an energy utilization rate of only 80%. After adopting the present invention to construct a biomass distributed cooling, heating, and electricity polygeneration energy system, the annual consumption of straw is 6,000 tons. In addition to heating in winter, it is used for room cooling in summer, replacing air conditioners, and generating electricity at t...

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Abstract

The invention discloses a biomass distributed combined cooling heating and power energy system, and belongs to the technical field of renewable energy. According to the technical scheme, the system comprises a biomass burner (1), a Stirling engine (5), a heat exchanger (10), a generator (14) and an absorption refrigerator (24), wherein flue gas generated by the biomass burner (1) is purified and then enters the Stirling engine (5); generated power is provided for the generator (14) through an output shaft (13) to generate electric energy; generated hot waste gas enters the absorption refrigerator (24) through a hot waste gas pipe (15) for refrigeration and heating; and cooling water passes through the heat exchanger (10), so that air is preheated, and hot water is provided; and therefore, combined cooling heating and power is realized. A biomass fuel is taken as a raw material, the flue gas generated by burning passes through the Stirling engine to generate the power for direct power generation, the hot waste gas passes through the absorption refrigerator for refrigeration and heating, and the air is preheated and the hot water is provided by a heat exchange device, so that cascade energy utilization is realized.

Description

technical field [0001] The invention belongs to the technical field of renewable energy, and is a biomass distributed co-generation energy system. Specifically, biomass fuel is used as raw material, and flue gas after combustion is used to generate power through a Stirling engine for direct power generation. , The hot waste gas is cooled and heated through the absorption refrigerator, and the heat exchange device realizes air preheating and hot water supply, so as to realize energy cascade utilization. Background technique [0002] my country is rich in biomass energy resources, with a large quantity, variety and wide distribution of straw, and the annual output of straw is about 800 million tons. It can alleviate the pressure of energy shortage, and can correspondingly reduce the negative impact of the use of coal, oil and other non-renewable resources on ecological environment protection. Biomass solid briquettes refer to crop straws and forestry residues that are dried an...

Claims

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Application Information

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IPC IPC(8): F02G1/043F02G1/055F25B27/02F23L15/00
CPCY02A30/274Y02E20/34
Inventor 田宜水姚宗路赵立欣孟海波孙丽英袁艳文霍丽丽
Owner ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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