Method and system for realizing visualization of operation working points of axial flow fan
An axial flow fan, working point technology, applied in wind power generation, mechanical equipment, machines/engines, etc., can solve the fan surge, cannot realize the real-time working point information of the fan, has a large safety margin, and has a large operating efficiency, which is not conducive to the fan and its belongings. System stability and economic operation, etc.
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Embodiment 1
[0050] see figure 1 , this embodiment provides a method for realizing the visualization of the operating point of the axial flow fan, the method includes the following steps:
[0051] Step 101: Determine the specific pressure energy of the axial flow fan.
[0052] In practical applications, the inlet wind pressure, outlet wind pressure and flue gas temperature of the axial flow fan are collected online in real time, and are calculated according to the formula Calculate the specific pressure energy of the axial flow fan in real time, where, ΔP=P o -P i , ΔP is the differential pressure of the axial flow fan, P o is the outlet air pressure of the axial flow fan, P i is the inlet wind pressure of the axial flow fan, ρ is the density of flue gas, ρ 0 The flue gas apparent density is designed for the boiler, and t is the inlet flue gas temperature of the axial flow fan.
[0053] Step 102: Determine the opening m of the rotor blades or stationary blades of the axial flow fa...
Embodiment 2
[0071] see Figure 4 , this embodiment provides a system for realizing the visualization of the operating point of the axial flow fan, the system includes:
[0072] The specific pressure energy determination module 401 is used to determine the specific pressure energy of the axial flow fan;
[0073] The blade opening degree determination module 402 is used to determine the opening degree of the rotor blade or stator blade of the axial flow fan;
[0074] An angle line determining module 403, configured to determine the fan angle line under the opening degree;
[0075] The first reference air volume determination module 404 is configured to use the air volume corresponding to the specific pressure energy on the angle line as the first reference air volume;
[0076] The second reference air volume determination module 405 is used to collect the total flue gas volume of the tail flue of the boiler as the second reference air volume;
[0077] An actual air volume determination m...
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