Tail gas waste heat driving injection refrigeration system for vehicle air conditioner

Abstract

The invention discloses a tail gas waste heat driving injection refrigeration system for a vehicle air conditioner for replacing a traditional steam compression refrigeration system for the vehicle air conditioner. The system consists of a tail gas heat exchanger, a generator, a main injector, an auxiliary injector, an evaporator, a condenser, a flash tank, an expansion valve, an electric three-way adjusting valve and an electromagnetic valve. The system has the following advantages: (1) the traditional steam compression refrigeration system for the vehicle air conditioner is replaced; and the performance reduction and the energy consumption rise of an engine caused by driving of a compressor are prevented; (2) the vehicle tail gas waste heat is reasonably used, and the exhaust temperature of tail gas is reduced, so that the activity of a catalyst in a catalytic converter is improved, and the environmental heat pollution and the harmful gas emission are reduced; (3) the system has no moving parts, needs no lubricating oil, is simple, and is reliable in work; and (4) the system uses water as a refrigerant, and totally has no harm to human bodies and environments.

Description

technical field [0001] The invention belongs to the field of refrigeration technology and the field of energy-saving technology of auto parts, in particular to an exhaust waste heat-driven injection refrigeration system used for automobile air conditioners. Background technique [0002] With the development of the automobile industry and the gradual advancement of energy-saving and emission-reduction goals, higher requirements have been put forward for the refrigeration system of automobile air conditioners. The operation of the currently dominant vapor compression automotive air-conditioning system is that the compressor is directly driven by the engine through a belt, which consumes a certain amount of shaft work, thereby increasing the engine load and reducing efficiency; moreover, the automotive air-conditioning compressor has many moving parts. , the structure is complex, and it needs a set of auxiliary systems such as lubricating oil system and electromagnetic clutch, ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a waste heat-driven injection refrigeration system for automobile air conditioners to solve: (1) the compressor consumes shaft work when the existing vapor compression type automobile air conditioner refrigeration system is working, causing the power performance of the engine to decline and the problem of rising energy consumption; (2) The existing vapor compression automotive air-conditioning and refrigeration system has many moving parts and is prone to failure

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