It is very small diameter tube made of copper readily available in various sizes i.e. from .026" to .064" inner dia. The tube is very carefully manufactured that it may be able to provide a regular flow of liquid refrigerant to the evaporator. Because the capillary tube has no moving part, therefore it has several advantages. First, there is no part to wear or stick, second, the pressure balance in the system when the system stops, this condition places a minimum starting load. Fitting : Out of the two ends of the tube each is connected to the filter at the outlet of condenser and to the evaporator while rest of the tube is usually soldered to the suction line for providing the necessary heat exchange. Any femaining length of tube is coiled near the evaporator.
The diameter and the length of the tube depends upon the size of the unit to be served and refrigerant used etc.
Capillary tube soldered with suction line for the purpose of making heat exchanger. Working : The capillary tube acts as a restrictor in the flow of liquid refrigerant and due to its length and small diameter offers sufficient frictional resistance to the flow of refrigerant. It creates pressure difference in the system and holds back the refrigerant to build up high pressure in the condenser and enabling it to condense during operation of the compressor. At the same time permitting the refrigerant to flow slowly into evaporator.
Application : Due to its simple construction and less cost, it is frequently used in modern domestic refrigerators, air-conditioners and water coolers equipped with sealed units.
The diameter and the length of the tube depends upon the size of the unit to be served and refrigerant used etc.
Capillary tube soldered with suction line for the purpose of making heat exchanger. Working : The capillary tube acts as a restrictor in the flow of liquid refrigerant and due to its length and small diameter offers sufficient frictional resistance to the flow of refrigerant. It creates pressure difference in the system and holds back the refrigerant to build up high pressure in the condenser and enabling it to condense during operation of the compressor. At the same time permitting the refrigerant to flow slowly into evaporator.
Application : Due to its simple construction and less cost, it is frequently used in modern domestic refrigerators, air-conditioners and water coolers equipped with sealed units.
0 comments:
Post a Comment