Blower fan negative pressure detection control apparatus

• Main Authors: SUN JUN, WANG HONGQIANG, GAN YIYUAN
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2012
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model discloses a blower fan negative pressure detection control apparatus, including a sensor, a microprocessor and a frequency converter. The sensor and the frequency converter are respectively connected with the microprocessor by communication. In the utility model, the blower fan negative pressure detection control apparatus possesses the technology effects as following: when the real negative pressure is different from the set negative pressure, the air quantity of the blower fan is automatically adjusted to the value near the set negative pressure, the closed-loop automatic adjustment of the negative pressure is realized, and after the blower fan negative pressure detection control apparatus is arranged on the blower fan of a cigarette maker practically, the bearing process capability index of a tobacco rod can be raised by about 0.14 indicated by practical tests. Because the valve is open to the maximum degree, the requirement can be satisfied when the output frequency of the frequency conv