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Afterheat recovery utilization system based on marsh gas power generation

A technology of waste heat recovery and biogas power generation, which is applied in engine components, combustion engines, machines/engines, etc., can solve the problems of high consumption, poor operation safety of biogas generators, and ineffective use of heat, and achieve safe, reliable and stable operation. , improve reliability and economy, improve the effect of heat utilization efficiency

Active Publication Date: 2015-04-15
ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention is to solve the problem that in the existing large-scale biogas projects, a large amount of hot water needs to be consumed to produce biogas, the high-temperature flue gas discharged from the biogas generator and the heat taken away by the internal cooling water cannot be effectively utilized, and the operation safety of the biogas generator is poor. problems, and then provide a waste heat recovery and utilization system based on biogas power generation

Method used

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  • Afterheat recovery utilization system based on marsh gas power generation

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 Explain that a waste heat recovery and utilization system based on biogas power generation in this embodiment includes a biogas generator set 2, which also includes a hot water tank 1, a spray tower 3, a three-way reversing valve 4, a circulating water pump 5, a flow sensor 6 and The first temperature sensor 7; the cooling outlet end of the biogas generator set 2 communicates with the hot water tank 1, the hot water tank 1 communicates with the three-way reversing valve 4, the three-way reversing valve 4 communicates with the circulating water pump 5, and the circulating water pump 5 communicates with the circulating water pump 5 The cooling inlet of the biogas generating set 2 is connected, the flue gas outlet of the biogas generating set 2 is connected with the spray tower 3, the spray tower 3 is connected with the three-way reversing valve 4, and the circulating water pump 5 is connected with the cooling inlet of the ...

specific Embodiment approach 2

[0009] Specific implementation mode two: combination figure 1 To illustrate, the circulating water pump 5 in this embodiment is a frequency conversion water pump. With such setting, the control is convenient and reliable, energy saving and water saving. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0010] Specific implementation mode three: combination figure 1 To illustrate, the first temperature sensor 7 in this embodiment is a thermocouple temperature sensor. Such setting has the advantages of large temperature measurement range, low price, high output thermoelectric potential, good linearity, good reproducibility, and strong oxidation resistance at high temperatures, which meets the design requirements. Others are the same as in the first or second embodiment.

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Abstract

The invention provides an afterheat recovery utilization system based on marsh gas power generation, and relates to an afterheat recovery utilization system for solving the problems that in the exiting large-scale marsh gas engineering, a great amount of hot water needs to be consumed for producing the marsh gas, the high-temperature smoke gas exhausted by a marsh gas power generator and heat brought away by internal cooling water cannot be effectively utilized, and the operation safety of the marsh gas power generator is poor. The afterheat recovery utilization system comprises a marsh gas power generator unit, a hot water tank, a spray tower, a three-way reversing valve, a circulation water pump, a flow rate sensor and a first temperature sensor, wherein the cooling outlet end of the marsh gas power generator unit is communicated with the hot water tank, the hot water tank is communicated with the three-way reversing valve, the three-way reversing valve is communicated with the circulation water pump, the circulation water pump is communicated with the cooling inlet end of the marsh gas power generator unit, the spray tower is communicated with the three-way reversing valve, and the flow rate sensor and the first temperature sensor are sequentially arranged a pipeline, communicated with the cooling inlet end of the marsh gas power generator unit, of the circulation water pump. The afterheat recovery utilization system is used for marsh gas power generation and hot water production.

Description

technical field [0001] The invention relates to a waste heat recovery and utilization system, in particular to a waste heat recovery and utilization system based on biogas power generation. Background technique [0002] The use of fermentation technology to develop green biomass energy is one of the important means to eliminate livestock manure pollution. Livestock manure contains a lot of organic matter. After biological treatment, not only can a large amount of biogas be recovered, but also in the process of transforming organic matter into methane, waste reduction is achieved. Quantification, and the entire fermentation is in a closed system, avoiding odor and a large amount of carbon dioxide gas, no tail gas pollution, and has ecological advantages. However, in large-scale biogas projects, a large amount of hot water is mixed with cow dung into the fermenter every day, especially in winter, which consumes a lot of electricity. On the other hand, the efficiency of engine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02G5/00F02G5/02
CPCY02T10/166Y02T10/12
Inventor 罗向东秦国辉王玉鹏刘旭丹徐晓秋
Owner ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE