One refrigerating unit for cooling two places in refrigerator car
A technology of refrigerating units and refrigerated trucks, which is applied in the direction of refrigerators, refrigeration and liquefaction, and refrigerated cargo transportation, etc. It can solve the waste of frosting cooling capacity, the cooling capacity of frosting cannot be used in cold storage rooms, and the cooling capacity of defrosting cannot be directly recovered, etc. problem, to achieve the effect of saving energy
Inactive Publication Date: 2005-10-26
上海大洋制冷工程有限公司
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Problems solved by technology
"Its disadvantage is that due to the one-to-one refrigeration system for single condenser and single evaporator, the defrosting cooling capacity cannot be directly recovered. The temperature is mostly operated below 0°C, so the cooling capacity of the frost in the freezer cannot be used in the refrigerator
Therefore, the biggest deficiency of these defrosting methods is that the cooling capacity of the frost is wasted in vain.
Method used
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[0017] As shown in Figure 1, the present invention comprises: compressor 1, condenser 2, drier filter 4, sight glass 5, refrigerating regenerator 6, refrigerating thermal expansion valve 7, air-conditioning thermal expansion valve 8, air-conditioning evaporator 10, Evaporating pressure regulating valve 11, gas-liquid separator 12, first solenoid valve 13, second solenoid valve 14, third solenoid valve 15, fourth solenoid valve 16, fifth solenoid valve 17, first one-way valve 18, second solenoid valve Three one-way valves 20, the first three-way 21, the second three-way 22, the third three-way 23, the fourth three-way 24, the fifth three-way 25, the liquid reservoir 3, the refrigeration evaporator 9, the second one-way Valve 19, the outlet of compressor 1 is connected to the inlet of the fifth three-way 25, the inlet of compressor 1 is connected to the outlet of the gas-liquid separator 12, and one outlet of the fifth three-way 25 is connected to the refrigeration thermal expans...
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The invention relates to the one driven two refrigerator group for chill cars, and belongs to the refrigerating technology. The invention comprises the compressor, the condenser, the dry filter, the viewing mirror, the chill reheater, the chill heat expansion valve, the air-conditioning heat expansion valve, the air-conditioning evaporator, the evaporating pressure adjusting valve, the airdraulic separator, the primary electromagnetic valve, the secondary electromagnetic valve, the third electromagnetic valve, the forth electromagnetic valve and the fifth electromagnetic valve, the primary unilateral valve, the third unilateral valve, the primary tee, the secondary tee, the third tee, the forth tee, the fifth tee. The invention is characterized in that it also includes the hydraulic storing device, the chill evaporator, the secondary unilateral valve; the output of the compressor connects the fifth tee, and the input of the compressor connects the output of the airdraulic separator; one output of the fifth tee connects the chill heat expansion valve through the secondary electromagnetic valve. The invention can use the same compressor and the condenser to realize the double-evaporating temperatures to save the energy.
Description
technical field [0001] The invention relates to a refrigerating unit, specifically, a refrigerating unit for a one-to-two refrigerated truck, which belongs to the technical field of refrigeration. Background technique [0002] Most of the existing refrigerated trucks are in the form of single-cooling without air conditioning in the cab. Most of the defrosting of the refrigerating unit comes from the compressor, that is, the exhaust temperature of the compressor is raised by the work of the compressor, and then sent to the evaporator. Used for defrosting; with the improvement of living standards, more and more cabs of refrigerated vehicles are required to add air conditioning functions. For small and medium-sized refrigerated vehicles, it is uneconomical to install two separate systems, and sometimes the installation space is not allowed , so there is a refrigerated truck refrigeration unit with one-to-two function; in the existing refrigerated refrigeration units, the defros...
Claims
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Inventor 汤仲宾
Owner 上海大洋制冷工程有限公司