Engine waste heat recycling system utilizing organic working medium as cooling liquid

A waste heat recovery and engine technology, applied in the direction of machines/engines, engine components, combustion engines, etc., can solve the problems of the overall performance of the refrigeration system is not very large, the temperature of the coolant of the engine is low, and the unit is difficult to miniaturize, etc., to achieve saturation pressure. The effect of large, small evaporation temperature, and large latent heat of vaporization

Inactive Publication Date: 2012-11-21
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former is limited by the performance of the adsorbent, and the overall performance of the refrigeration system is not great; while the latter is difficult to miniaturize the unit, the system is huge, and the space required is large.

Method used

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  • Engine waste heat recycling system utilizing organic working medium as cooling liquid
  • Engine waste heat recycling system utilizing organic working medium as cooling liquid
  • Engine waste heat recycling system utilizing organic working medium as cooling liquid

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Embodiment

[0021] Such as figure 1 As shown, the engine waste heat recovery and utilization system in which the organic working medium of the present invention is a coolant is connected with the engine 7, the engine internal circulating coolant heat transfer inlet 6, the circulating coolant heat transfer outlet 8, the high-temperature exhaust gas outlet 10 of the engine, the vehicle-mounted The heater 2 is connected, including a turbine 1, an air-cooled condenser 3, a liquid storage tank 4, a coolant circulation pump 5, a flash evaporator 9, a throttle valve J1, an engine exhaust gas waste heat recovery device 11 and the first to twelfth electromagnetic Valves F1-F12; wherein, there are heat exchange tubes in the air-cooled condenser 3, the engine 7, the vehicle heater 2, the flash evaporator 9, and the engine exhaust heat recovery device 11;

[0022] The power output shaft of the turbine 1 is connected to the power transmission system, which can drive the car (ship) air-conditioning com...

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PUM

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Abstract

The invention discloses an engine waste heat recycling system utilizing organic working medium as cooling liquid. The engine waste heat recycling system is connected with an engine, a cooling tube in the engine, a power transmission system and a vehicle/ship-mounted fan heater and comprises a turbine, an air-cooled condenser, a liquid storage tank, a cooling liquid circulation pump, a flash evaporator, a throttle valve, an engine waste heat recycling device and first to twelfth solenoid valves. The organic working medium which is free of toxicity and damage to human bodies, is odorless, has no destructive effect or less destructive effect on the atmospheric ozone layer, and is good in thermal transfer, small in gas specific volume and large in steam pressure is selected instead of water to serve as the cooling liquid. By recycling engine cooling heat and engine tail gas waste heat, the temperature of the organic working medium rises to form high-pressure steam which drives the turbine to output power which can drive a vehicle/ship-mounted air conditioner compressor and can also serve as part of the power supplied to the engine. Under the same engine waste heat recycling system, refrigerating, heating and power supply can be switched through a plurality of modes, the energy utilization rate is improved, energy consumption is reduced, and operation cost of automobiles/ships can be reduced.

Description

technical field [0001] The invention relates to an engine waste heat recovery and utilization system using an organic working medium as a cooling liquid, in particular to a comprehensive utilization technology of engine waste heat. Background technique [0002] In order to ensure the normal operation of the engine, the circulating cooling water takes away 30% of the calorific value of the fuel, and the outlet temperature is generally controlled at 80-90°C, the exhaust gas takes away 35%-45%, and the effective power of the engine is only 35%-40%. Underused. Therefore, recovery of engine waste heat and comprehensive utilization is a promising way to save energy. At present, the technologies that use engine coolant and engine exhaust waste heat as driving heat sources for cooling and heating mainly include adsorption cogeneration technology and lithium bromide absorption cogeneration technology. The former is limited by the performance of the adsorbent, and the overall perfor...

Claims

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Application Information

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IPC IPC(8): F02G5/00F02G5/02
CPCY02T10/166Y02T10/12
Inventor 马伟斌龙臻李华山卜宪标罗勇
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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