Compare with the energy-saving device of simple frequency conversion

Frequency control changes in the energy-saving control that discharge method uses already extensively at all of water system of central air conditioning, but because control method differs and energy-saving effect differs very great disparity.

According to experience, install frequency artificially, implementation changes discharge is the simplest frequency conversion method, the control means of type of this kind of open loop can save specific power consumption of water system all only 20% the left and right sides, be the influence of the element easily.

Set the means of frequency conversion of simple process designing of different frequency by different period of time, although need not be operated artificially, but still cannot dog the real time of bear changes, also can save specific power consumption of water system all only normally 30% the left and right sides.

Change according to pressing difference for backwater method of automatic frequency conversion, apply to extreme to use 2 a powerful person to make bear pilot cold warm water system only, applied range is narrow, the change that press difference also cannot the change of accurate report cold thermic load, the specific power consumption that saves water system tube-shaped part normally also is in 30% the left and right sides.

Above 3 kinds of simple frequency conversion are energy-saving method, initiative investment is met slightly a few lower, but in use, the moving charge of water system all is this energy-saving control equipment 1.5 to 2.5 times, still need to handle artificial charge sometimes, not be good energy-saving way consequently.

With pilot of collect Chinese style but * sex is compared

Central air conditioning is distributed the system is energy-saving one of technical innovation dots of control equipment were to use distributed control pattern, use 3 namely 16 microprocessor are made leave an opportunity, to the cold hot water of central air conditioning, cooling water and cooling tower fan 3 stature systems make independent energy-saving control and protective control, this is the corrupt practice that dominates mode existence in the light of groovy collect Chinese style and adopted step.

Collect Chinese style controls mode to go up with a computer time-sharing control 3 stature systems, in spot work environment, often appear go up the breakdown that a machine and subsystem communication interrupt, cause the serious consequence that the system breaks down. Distributed control mode solved problem of this one technology effectively, the job that increased unit greatly but * sex.

Distributed control mode still accelerated each subsystem energy-saving pilot answers speed, increased the capacity of each subsystem information processing, also facilitate each subsystem presses labour frequency / all sorts of combination of frequency conversion move neatly.
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