Combined cooling and heating system based on heat engine
A combined cooling and heating technology, heat engine technology, applied in the direction of machine operation, heating and cooling combination, refrigerators, etc., can solve the problem that the power load and heat (cold) load are not synchronized, the control problem is complicated, and the advantages are not enough Obvious problems, to achieve the effect of simple and effective control and operation, convenient direct operation and adjustment, and reduced configuration capacity
Inactive Publication Date: 2016-06-01
SHANGHAI JIAOTONG UNIV
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[0006] In addition, traditional building cogeneration systems are mainly cogeneration of heat and power or cogeneration of cooling, heating and power, which are designed to meet the power demand and heat (cooling) demand of users; but because the power load and heat (cooling) load are often not changed synchronously , which complicates the control problem in the actual operation of the system
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[0028] Such as figure 1 As shown, in one embodiment of the present invention, a combined cooling and heating system based on a heat engine includes a heat engine, a generator set, a waste heat recovery heat exchanger, a working condition switching valve, a hot water heat exchanger, and an absorption refrigeration unit , HVAC equipment, etc.
[0029] The heat engine is preferably a gas internal combustion engine. The input end of the gas internal combustion engine is connected to the fuel energy input 1, the shaft work output end 2 of the gas internal combustion engine is connected to the generator set, and the power output 7 of the generator set is connected to the input end of the HVAC equipment. The cylinder jacket water circulation and flue gas pipeline of the gas internal combustion engine are respectively connected to the low temperature section and the high temperature section of the waste heat recovery heat exchanger, and the waste heat of the cylinder jacket water and...
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The invention discloses a cold and hot co-providing system based on a heat machine. The system comprises the heat machine, a generator unit, a waste heat recycling heat exchanger, a working condition switching valve, a hot water heat exchanger, an absorption cooling unit and HVAC equipment. A shaft work output end of the heat machine is connected with a generator unit. A power output end of the generator unit is connected with the input end of the HVAC equipment. A waste heat output end of the heat machine is connected with the waste heat recycling heat exchanger which is connected with one end of the working condition switching valve. The other end of the working condition switching valve is selectively connected with one of the absorption cooling unit and the hot water heat exchanger. The absorption cooling unit and the HVAC equipment are connected with a user and are used for meeting the cold load requirement of the user. The hot water heat exchanger and the HVAC equipment are connected with the user and are used for meeting the hot load requirement of the user. System energy output is completely towards cold load and hot load, electrical load is not related, and accordingly system control and operation can be achieved easily and effectively.
Description
technical field [0001] The invention relates to the field of building energy supply, in particular to a combined cooling and heating system based on a heat engine. Background technique [0002] In developed countries, 50% of building energy consumption comes from HVAC equipment. With the rapid advancement of my country's urbanization rate and the improvement of residents' living standards, building energy consumption has also increased significantly. Especially in winter and summer, building heating and cooling brings huge energy consumption. On the one hand, it causes seasonal fluctuations in regional power supply, which adds pressure to power plant production and grid scheduling. On the other hand, it increases coal consumption. cause environmental pollution. In addition, in recent years, electricity shortages and blackouts have occurred in various parts of our country. One of the important factors is the high electricity load in winter or summer. If the winter and summ...
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IPC IPC(8): F25B29/00F02G5/00
CPCY02E20/14Y02P80/15Y02T10/12
Inventor 王加龙吴静怡郑春元
Owner SHANGHAI JIAOTONG UNIV