Air compressor anti-surge line temperature compensation method and device
A technology of temperature compensation and air compressor, which is applied in mechanical equipment, machines/engines, non-variable pumps, etc., and can solve problems such as inability to ensure safety and inability to exert the best performance of the unit
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Embodiment 1
[0026] This embodiment provides an air compressor anti-surge line temperature compensation method, including compensation for the abscissa of the surge line, that is, compensation for the throat differential pressure, and compensation for the ordinate of the surge line, that is, the pressure ratio make compensation;
[0027] The specific process of compensation for the abscissa of the surge line is:
[0028] Considering that the inlet pressure of the air compressor is atmospheric pressure, which is basically a constant, the volume flow rate at the inlet of the air compressor is calculated according to the following formula:
[0029]
[0030] In the formula, K is the flow coefficient, ΔP is the throat differential pressure, T 1 is the inlet temperature (absolute temperature).
[0031] Under the same inlet volume flow rate F, the inlet temperature is determined by T 1 becomes T 2 When , the compensation formula of throat differential pressure is:
[0032]
[0033] The...
Embodiment 2
[0045] This embodiment provides an anti-surge controller for implementing the method described in Embodiment 1, including a surge line abscissa compensation module and a surge line ordinate compensation module, which are respectively used to adjust the abscissa and ordinate of the surge line Make compensation.
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