What does the Cooling Tower do not freeze?
Cooling Tower is not how is it? Here, Xiaobian for everyone to analyze what is going on, please see the following details:
Cooling Tower is not one of the reasons: the amount of refrigerant in the system is insufficient, the cooling capacity is insufficient - the refrigerant circulation is insufficient for two main reasons: First, the refrigerant charge is insufficient, at this time, only need to fill The other is because the system refrigerant leakage more, in case of this situation, should first find the leak, the focus of inspection of the pipeline, the valve connection, to find out the leak after the repair, and then Filled with sufficient amount of refrigerant.
Cooling Tower is not the cause of ice 2: cold storage due to heat insulation or sealing performance is poor, resulting in large loss of cold capacity - poor insulation performance is due to pipe, warehouse insulation wall insulation layer thickness is not enough, heat insulation and insulation The effect is poor, it is mainly designed when the insulation layer thickness improper or poor quality of the insulation material caused by the construction.In addition, the construction process, the thermal insulation material moisture insulation performance may be damaged lead to insulation layer damp, deformation, Erosion, the thermal insulation capacity decreased, library anti-cooling loss increases, the library temperature decreased significantly slow down.
Cooling Tower does not freeze the third reason: throttle valve adjustment improper or blocked, the refrigerant flow is too large or too small - improper adjustment of the throttle or plug, will directly affect the refrigerant into the evaporator flow. When the throttle opening is too large, the refrigerant flow is too large, the evaporation pressure and evaporation temperature also will rise, the decline in the temperature of the Treasury will slow down; the same time, when the throttle opening is too small or blocked, the refrigerant The flow rate is also reduced, the system will also reduce the cooling capacity, the decline in the temperature of the Treasury will also slow down. Generally by observing the evaporation pressure, evaporation temperature and the suction pipe to determine the situation of the throttle refrigerant flow is appropriate
Cooling Tower does not freeze Cause four: the evaporator surface frost is too thick or too much dust, heat transfer effect decreased ---- lead to slow decline in another important reason is the evaporator heat transfer efficiency is low, this main Is due to the evaporator surface cream layer is too thick or too much dust caused. As the surface temperature of the cold storage evaporator is mostly below 0 ℃, and the warehouse is relatively high humidity, moisture in the air easily in the evaporator surface frost, and even icing, affecting the heat transfer effect of the evaporator.
Cooling Tower does not freeze Cause five: there is more air in the evaporator or frozen oil, heat transfer effect down - once the evaporator heat transfer tube attached to the surface of the more frozen oil, the heat transfer coefficient will Will be reduced, the same, if there is more heat in the heat pipe, evaporator heat transfer area decreases, the heat transfer efficiency will be significantly reduced, the decline in the rate of the Treasury temperature will slow down.Therefore, in the daily operation and maintenance , Should pay attention to the timely removal of the evaporator heat transfer tube surface oil and discharge the evaporator air, in order to improve the evaporator heat transfer efficiency.
Cooling Tower does not freeze the five reasons, we refer to the next, on their own Cooling Tower is not the cause of analysis of what is the ice, so as to find the best solution, I hope this article for everyone to help.