At present, most central air conditioning hosts have automatic loading and unloading functions, and there are many types of hosts, such as screws, piston , centrifugal, etc. They are not all square torque loads. Therefore, energy-saving transformation investment is large, recovery period is long, and the air conditioner host is generally not replaced.
Therefore, the energy-saving transformation of central air conditioners is mainly concentrated on the circulation system. If the circulation system is modified and power saving is indirectly, it will be a good central air conditioning energy solution. It has been proved that by reasonably controlling the refrigeration pump and cooling pump, not only can the circulation system itself save 30 to 60% energy, but the host indirectly saves 5 to 10%. Except for a few small models, the circulation system, cooling pump and refrigeration pump in the central air conditioning system are mostly multi-connected pumps. As the weather changes, the number of pumps started is also different, that is, there are more pumps started when the temperature is high and fewer pumps started when the temperature is low. Energy-saving measures have been taken on the surface, but some situations cannot be resolved. For example, opening one pump is not enough to waste two pumps. Turning 0.7 pumps can satisfy the situation, but only opening one pump will cause waste. Based on the inlet and outlet water temperature of refrigeration water and cooling water, the central air conditioning energy system performs frequency conversion control on the fans of the refrigeration pump, cooling pump and air supply system, so that the central air conditioning system always operates in the best state, thereby achieving the purpose of power saving.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-