2. The price of double cycle is generally more than 3000 yuan, and the temperature is controlled by computer. The temperature of refrigeration and freezing can be adjusted independently, and the refrigerating room can be closed independently. Refrigeration force is greater than 12kg.
Single cycle refrigeration: the refrigeration system has only one evaporator, which drives the refrigerator and freezer to refrigerate. When the refrigerator is running, two boxes are cooled at the same time. The temperature of this refrigerator is generally controlled by the thermostat or temperature sensor of the refrigerating room, and the freezing temperature cannot be adjusted independently. ?
Double-cycle refrigeration: the refrigeration system has two evaporators, which are installed in the cold room and the freezing room respectively. The solenoid valve controls the flow direction of the refrigerant liquid, thus achieving the effect of independent refrigeration of the refrigerating room and the freezing room. The temperature of the refrigerating chamber and freezing chamber of this refrigerator can be controlled independently, thus reducing the refrigeration area, making the refrigerator more energy-saving and stronger in refrigeration capacity.
Extended data:
cryogenic technology
The research content of refrigeration technology can be summarized as the following three aspects:
(1) Study the method and related mechanism of obtaining low temperature, and the corresponding refrigeration cycle. So as to provide a working medium with satisfactory performance for the refrigerator. Mechanical refrigeration can only be realized by changing the thermal state of refrigerant.
② Study the properties of refrigerants. The thermophysical properties of refrigerants are the basic data for cycle analysis and calculation. In addition, in order to make the refrigerant practical, it is necessary to master its general physical and chemical properties. Including its working principle, performance analysis and structural design.
(3) Research all kinds of machinery and technical equipment needed to realize refrigeration cycle. And the process organization and system matching design of refrigeration device. In addition, there are insulation problems, automation problems of refrigeration devices, and so on.
Refrigerator defrosting has a brilliant idea:
Some refrigerators need defrosting, and manual defrosting of refrigerators is time-consuming and laborious, and the defrosting effect is very poor. Here's a good idea for defrosting.
According to the size of the freezer, cut a slightly thicker plastic film and stick it on the frosted wall of the freezer without using any glue. When defrosting, take the food out of the refrigerator temporarily, then take down the plastic film and shake it, and the frost will fall off completely. Then put a layer of film on it and put it in the food for further use.
Energy saving:
Keep away from heat sources and keep a gap:
Every time the temperature around the refrigerator rises by 5℃, its internal power consumption will increase by 25%. Therefore, it should be placed as far away from the heat source as possible, and it is best to put it in a ventilated and cool place. Don't put hot food directly in the refrigerator until it reaches room temperature. It is best to pack the food in the freezer in plastic bags, so that it can be quickly frozen and not easily dried to prevent the water from turning into frost. Food should not be too full, and there should be a gap between it and the refrigerator wall to facilitate the circulation of cold air; Frozen food, it is best to transfer it to the freezer in a planned way before eating.
Baidu encyclopedia-refrigerator: Baidu encyclopedia: refrigeration