Does the model of high temperature resistant centrifugal fan take into account the cost?
High temperature resistant centrifugal fanThe motor selection must take into account many levels of factors. Among them, it must be considered that it is necessary to balance the early installation cost and the middle and late operating cost. The installation cost here includes the cost of the centrifugal fan, the cost of the motor, and the cost of resistance. Installation specifications of high-temperature centrifugal fans, etc.
However, the security performance of some system software is too large to be considered, and it is not necessary. For example, the specific operating pressure of a centrifugal fan can only be estimated at 50% of the working pressure. causeHigh temperature resistant centrifugal fanIt operates at a very high efficiency point, and even the load point deviates from the motor selection point too far, causing the motor to load. Although the speed ratio of the high temperature resistant centrifugal fan can be changed to deal with the problem of motor load. But it also damages a lot of exhaust air volume and reduces the production volume of system software.
In such a case, the simple solution is to select a power motor, but it will also increase the installation cost and its mid-to-late operating cost. In the design concept between the two, only the increased working pressure safety capacity is considered, and it is not as good as the motor selection that combines safety capacity and high temperature resistant centrifugal fan, and expands the application working pressure to the highest peak working pressure of the high temperature resistant centrifugal fan curve. Scope, so that the actual operating pressure has a large capacity.
If the safety performance of 20% embedded in the control system design is considered ideal at the beginning, then the high temperature resistant centrifugal fan model should be selected for the high temperature resistant centrifugal fan. The actual operating point working pressure of the high temperature resistant centrifugal fan should be at least less than 15% of the maximum working pressure, and together Embedded 10% safety performance. That will ensure that the selected wind opportunities are closer to the required work positions during the entire operation.
As everyone knows, power engineering is not the only cost loss. Reducing the repair rate of centrifugal fans, reducing parking time, and saving maintenance capital investment costs are more important to control costs. Only high-quality centrifugal fans can be selected, and the cost saved by reducing the failure rate is equivalent to or even higher than the cost saved by environmentally friendly, energy-saving, high-temperature resistant centrifugal fans.
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