[Freezer refrigeration cycle]

Under normal circumstances, the cycle subdivided into two methods:

(1) vapor compression refrigeration cycle. After cooling the steam out of the evaporator pressure, recondensation of the liquid, and then evaporated, so the cycle of which is a vapor compression refrigeration cycle. In this way the freezer refrigeration, freezer price vapor compression refrigeration cycle is achieved in principle. The working fluid for cooling the filling in a sealed system, the liquid working substance through the throttle after throttling means, moderate pressure in the evaporator absorbs heat of vaporization, to a low temperature, low pressure steam, and then through the compressor adiabatic compression to a high temperature high pressure steam, and finally heat liquefied in a condenser, and re-enters the throttling device, thus completing a refrigerating cycle.

(2) freezers absorption refrigeration cycle. Absorption refrigeration cycle using heat energy provided by the heat source, so that the working fluid is circulated, it works as follows: It absorber and generator instead of the compressor and other components, and using two refrigerant, low boiling point working fluid called a refrigerant high boiling point working fluid, said absorbent, and the role of other parts and principles of the vapor compression refrigeration cycle is basically the same.

There are two absorption refrigeration cycle circulation loop, it works as follows: the liquid refrigerant through the throttle after throttling means, medium-pressure evaporator in the evaporator absorbs heat, it becomes low pressure, low temperature refrigerant vapor into the absorbent , a strongly absorbed by the absorbent, forming a refrigerant solution high concentration, and release heat of dissolution. Then the refrigerant solution from the pump into the freezer generator, the heat source is heated up to produce high pressure refrigerant vapor, a condenser to condense into liquid refrigerant, while the remaining generator dilute solution under reduced pressure He returned to the absorber