| 摘要 |
<p>The invention is a new device for detecting the characteristics of ice, snow or hoar frost, comprising an electric/electronic control circuit connected to ice sensors and local heater, if necessary. The sensors are applied and positioned in the areas where ice is most likely to form, like shadowy roads or heat exchanger fins, where the formation of ice reduces the efficiency of the chiller. In the event of formation of ice on the fins, the sensors indicate its presence to the electric/electronic circuit which suspends the operation of the chiller, adjusts opening and closing of the expansion valves located at the evaporator inlet, or suspends the operation of the chiller compressor only, and if necessary operates the heaters, thus melting the ice into water which is removed via the known means used for removing condensate.</p> |
