Device for cooling heat-insulated body autorefrigerators

 

(57) Abstract:

The invention relates to gas networks, as well as to the field of refrigeration and can be used in cooling systems, where the liquefied mixture of hydrocarbons (e.g. propane and butane) is under pressure, serves simultaneously as a fuel for automotive engine and cooling agent for the refrigeration unit to cool the heat-insulated body autorefrigerators. The device is equipped with a receiver and a pipeline connecting the outlet of the regenerative heat exchanger on the one hand with the inlet of the compressor, on the other hand with the receiver, a sequence of connected pipe with reducer and carburetor. In addition, the inlet of the regenerative heat exchanger is piped to the output of the fuel tank, the outlet of the regenerative heat exchanger is connected to the expansion valve, and the output of the condenser is piped to the inlet of the fuel tank. 2 C.p. f-crystals, 1 Il.

The invention relates to gas networks, as well as to the field of refrigeration and can be used in cooling systems, where the liquefied mixture of hydrocarbons (such as propane-butane) under pressure is simultaneously top the isolated body autorefrigerators.

Known refrigeration system for a vehicle containing a container of fuel is liquefied under pressure a mixture of hydrocarbon gases (such as propane-butane), thermostatic expansion valve, evaporator, compressor, condenser, regenerative heat exchanger, the inlet of which is connected to the output capacitor, and the output of the regenerative heat exchanger is connected to the input of the fuel tank, and the piping that connects the fuel tank with the carburetor, and the internal combustion engine [1].

The disadvantage of this system is the need for compression in the compressor and subsequent throttling part of the refrigerant-fuel used for engine operation. Compression of this part of the refrigerant-fuel additionally spent part of the engine power.

The technical result of the invention is to improve fuel economy and energy consumption. The technical result is achieved due to the supply device, the receiver and the pipeline connecting the outlet of the regenerative heat exchanger on the one hand with the inlet of the compressor, on the other hand with the receiver, a sequence of connected pipe with reducer and respectively.

In addition, the inlet of the regenerative heat is n with thermostatic expansion valve, and the output of the condenser is piped to the inlet of the fuel tank.

Device for cooling heat-insulated body autorefrigerators with liquefied natural gas (see drawing) contains the fuel tank 1 (capacity) with liquefied under pressure a mixture of hydrocarbon gases (such as propane-butane), thermostatic expansion valve 2, an evaporator 3, a regenerative heat exchanger 4, a compressor 5, the air cooled condenser 6, a receiver 7, the reduction gear 8, respectively 9 and the internal combustion engine 10. The output of the regenerative heat exchanger connected to the compressor inlet, connected to the receiver 7 through the pipe 11.

The device operates as follows.

Liquefied gas from the container 1 passes through the regenerative heat exchanger 4 where it is cooled by the air flow coming out of the evaporator 3. Then, the liquefied gas enters thermostatic expansion valve 2, where he choked and its temperature falls. After that, the gas is supplied to the evaporator 3, where the heat of vaporization of liquefied gas is used for cooling in the back of a refrigerated cars. The gas then passes through the regenerative heat exchanger 4 where it is heated by pooled 11 in the receiver 7, and then through the reduction gear 8, respectively 9 and then into the engine 10 as fuel. The other part is returned to the tank 1 by means of the compressor 5 through the air cooled condenser 6, where the gas passing into the liquid state, transfers heat to the environment. This is achieved by saving energy (fuel), with the same capacity required for gas compression in the compressor 5.

Sources of information

1. Patent US N2082850, CL 62-1, 1937.

1. Device for cooling heat-insulated body autorefrigerators containing a container of fuel is liquefied under pressure a mixture of hydrocarbon gases (such as propane-butane), thermostatic expansion valve, evaporator, compressor, condenser, regenerative heat exchanger, the inlet of which is connected to the output capacitor, and the output of the regenerative heat exchanger is connected to the input of the fuel tank, internal combustion engine with gearbox and carburetor, characterized in that it is equipped with a receiver and a pipeline connecting the outlet of the regenerative heat exchanger on the one hand with the inlet of the compressor, on the other hand with the receiver, a sequence of connected pipe with reducer and respectively.

2. Remove the fuel tank, and the output of the regenerative heat exchanger is connected to the expansion valve.

3. The device according to p. 2, characterized in that it is the output of the condenser is piped to the inlet of the fuel tank.

 

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