Roots blower general conditions of use following points: 1: inlet gas temperature is not more than 35 ℃ 2: gas solid particles content not more than 100m3, blower, dust should not exceed the maximum particle size 0.05 mm 3: Gas containing coal tar indicators should be consistent TJ28-78 city gas standard design rules 4: bearing temperature not exceeding 85 ℃ 5: maximum oil temperature does not exceed 65 ℃ blower control principle of general inverter motor inverter motor blower control strategy: the base speed constant torque control, constant power above the base speed control, ultra-fast weak magnetic scale manipulation. Base rate: because the motor work occur when a counter electromotive force, and the size is generally proportional to the speed of the back EMF. Thus when the motor work to a certain speed, because the back-emf size and size as the applied voltage, the speed at the moment called the base speed. Constant Torque Control: motor at the base speed, constant-torque control. At the moment the motor speed is proportional to the counter electromotive force E and the motor. And motor output power and the motor torque and speed proportional to the product, which at the moment is proportional to the motor power and speed. Constant Power Control: When the motor beyond the base speed, after conditioning motor excitation current to control the motor back-EMF simply adhere to stable, Shenyang blower, motor speed in order to progress. At the moment, Shandong Roots blower, motor output power simply adhere to stable, but the motor torque and speed inversely proportional to the decrease. Weakening control: When the motor speed must exceed the value, Zhang Qiu Luoci fans, the field current is now reasonably small, simply can not recuperate, now entering the field weakening control period. Roots blower, Zhucheng East Han Machinery Co., blower manufacturers to provide the Eastern Han Machinery Co., Ltd. Zhucheng. Roots blower, Zhucheng East Han Machinery Co., blower manufacturer is Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) this year introduced a new upgrade, the above picture is for reference Please call the telephone or pictures on this page, for the latest information, contact: Mr. Wang.