Jet-type automobile air conditioner

Abstract

The invention discloses a jet-type automobile air conditioner, which comprises a steam generator, a condenser and an evaporator, and is characterized in that the inlet of the steam generator is connected with the outlet of a gas-liquid injector, and one path of the outlet of the steam generator is connected with a working steam inlet of the gas-liquid injector through an auxiliary heater, while the other path of the outlet is connected with the working steam inlet of a gas-gas injector through an inlet valve of the gas-gas injector; the outlet of the gas-gas injector is connected with the inlet of the condenser; and through an outlet valve of the condenser, a first path of the outlet of the condenser is connected with the inlet of the evaporator through a throttle valve, a second path is connected with the liquid inlet of the gas-liquid injector, and a third path is connected with the outlet of the evaporator through a second bypass pipe valve; the inlet of the evaporator is connected with the working steam inlet of the gas-liquid injector through a first bypass pipe valve; and the outlet of the evaporator is connected with the refrigerant steam inlet of the gas-gas injector through an evaporator outlet valve to form a closed system.

Description

technical field [0001] The invention relates to a jetting type automobile air conditioner, in particular to a jetting type automobile air conditioner driven by the waste heat of the automobile cooling system and using R600a as the working medium. Background technique [0002] The current dominant method of automobile air conditioners is still the electric-driven vapor compression cycle with R22 or R134a as the refrigerant. This method not only increases the load on the engine, but also increases the thermal pollution of the automobile to the environment. [0003] As we all know, the use efficiency of automobile engines is generally only about 35% to 40%, and the energy accounting for more than 1 / 2 of the calorific value of fuel is discharged to the environment as waste heat. The waste heat of the engine includes two parts: the heat taken away by the circulating cooling water and the waste heat of the exhaust gas. The waste heat of the exhaust gas is characterized by high tem...

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Problems solved by technology

[0004] The invention aims at the defects of the existing automobile air conditioner, such as increased engine load, exhaust heat pollution, and high power consumption, and provides a jet-type air conditioner that uses the waste heat of the automobile engine cooling system as the power, and uses the exhaust waste heat of the engine as a supplementary heat source. Based on refrigeration, the automotive air-conditioning device with R600a as the working medium can effectively use the engine cooling waste heat and exhaust waste heat, reduce the heat exhaust temperature of the cooling water and the exhaust temperature of the engine, and completely consume no power. It is a summer air conditioner for large and medium-sized vehicles , Heating in winter provides a comfortable environment inside the car, and at the same time has the characteristics of green environmental protection

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