Patent ID: 11892237
Assignee: YANSHAN UNIVERSITY
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F  H

Claim 5:
6. A diversion method using the device for diversion of quenching exhaust gas according to claim 1, comprising the following steps:
S1, after the exhaust gas is produced by quenching the workpiece, the third motor connected to the X-axis exhaust fan, the fourth motor connected to the Y-axis exhaust fan and the fifth motor connected to the Z-axis exhaust fan are started so that they start running at a power of 2 kw respectively;
S2, start the gas detector in machine vision to monitor the concentration of exhaust gas discharged from the quenching chamber to the exhaust chamber in real time;
S3, according to the exhaust gas concentration monitored by the gas detector, the power of the third motor connected to the X-axis exhaust fan and the fourth motor connected to the Y-axis exhaust fan is adjusted in real time, and the power of the X-direction exhaust fan and Y-direction exhaust fan is changed in real time by comparison of the X-direction and Y-direction exhaust gas concentrations in the exhaust gas chamber by the gas detector, and the power adjustment range of the X direction exhaust fan and the Y direction exhaust fan is 2˜2.5 kw;
S31, when the gas detector detects that the exhaust gas concentration of the negative half axis of the X-axis is relatively large, the power of the third motor connected to the X-axis exhaust fan is increased, and then the speed of the X-axis exhaust fan increases; the power of the fourth motor connected to the Y-axis exhaust fan remains unchanged, and then the speed of the Y-axis exhaust fan remains unchanged; the exhaust gas starts to move from the negative half axis of the X-axis with high concentration to the positive half axis of the X-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S32, when the gas detector detects that the exhaust gas concentration of the positive half axis of the X-axis is relatively large, the power of the third motor connected to the X-axis exhaust fan is reduced, and then the speed of the X-axis exhaust fan decreases; the power of the fourth motor connected to the Y-axis exhaust fan remains unchanged, and then the speed of the Y-axis exhaust fan remains unchanged; the exhaust gas starts to move from the positive half axis of the X-axis with high concentration to the negative half axis of the X-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S33, when the gas detector detects that the exhaust gas concentration of the positive half axis of the Y-axis is relatively large, the power of the third motor connected to the X-axis exhaust fan remains unchanged, and then the speed of the X-axis exhaust fan remains unchanged; the power of the fourth motor connected to the Y-axis exhaust fan is reduced, and then the speed of the Y-axis exhaust fan decreases; the exhaust gas starts to move from the positive half axis of the Y-axis with high concentration and the negative half axis of the Y-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S34, when the gas detector detects that the exhaust gas concentration of the negative half axis of the Y-axis is relatively large, the power of the third motor connected to the X-axis exhaust fan remains unchanged, and then the speed of the X-axis exhaust fan remains unchanged; the power of the fourth motor connected to the Y-axis exhaust fan increases, and then the speed of the Y-axis exhaust fan increases; the exhaust gas starts to move from the negative half axis of the Y-axis with high concentration to the positive half axis of the Y-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S35, when the gas detector detects that the exhaust gas concentration in the third quadrant of the coordinate system is relatively large, the power of the third motor connected to the X-axis exhaust fan increases, and then the speed of the X-axis exhaust fan increases; the power of the fourth motor connected to the Y-axis exhaust fan increases, and then the speed of the Y-axis exhaust fan increases; the exhaust gas starts to move from the third quadrant with high concentration to the positive half axis of the X-axis and the positive half axis of the Y-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S36, when the gas detector detects that the exhaust gas concentration in the fourth quadrant of the coordinate system is relatively large, the power of the third motor connected to the X-axis exhaust fan is reduced, and then the speed of the X-axis exhaust fan is reduced; the power of the fourth motor connected to the Y-axis exhaust fan increases, and then the speed of the Y-axis exhaust fan increases; the exhaust gas starts to move from the fourth quadrant with high concentration to the negative half axis of the X-axis and the positive half axis of the Y-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S37, when the gas detector detects that the exhaust gas concentration in the second quadrant of the coordinate system is relatively large, the power of the third motor connected to the X-axis exhaust fan increases, and then the speed of the X-axis exhaust fan increases; the power of the fourth motor connected to the Y-axis exhaust fan decreases, and then the speed of the Y-axis exhaust fan decreases; the exhaust gas starts to move from the second quadrant with high concentration to the positive half axis of the X-axis and the negative half axis of the Y-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S38, when the gas detector detects that the exhaust gas concentration in the first quadrant of the coordinate system is relatively large, the power of the third motor connected to the X-axis exhaust fan is reduced, and then the speed of the X-axis exhaust fan decreases; the power of the fourth motor connected to the Y-axis exhaust fan 6 decreases, and then the speed of the Y-axis exhaust fan decreases; the exhaust gas starts to move from the first quadrant with high concentration to the negative half axis of the X-axis and the negative half axis of the Y-axis with low concentration, and is discharged through the exhaust cylinder at the top center of the exhaust chamber;
S4, start the lifting assembly, adjust the first motor connected to the first screw and the second motor connected to the second screw, so that the first screw and the second screw rotate to drive the first slider and the second slider respectively up and down along the first slider support column and the second slider support column at a speed of 0.2-0.3 m/s;
S5, after the exhaust gas is discharged from the exhaust chamber, the third motor connected to the X-axis exhaust fan stops, then the X-axis exhaust fan stops, and the fourth motor connected to the Y-axis exhaust fan stops, and then the Y-axis exhaust fan stops, and then the first slider and the second slider of the lifting assembly drive the X-axis exhaust fans and the Y-axis exhaust fan in the exhaust assembly back to the initial position along the first slider support column and the second slider support column respectively, to complete the reset operation.