What is the difference between a rotary Roots blower and a three-leaf Roots blower?
Working principle of Roots blower: The air blower is a volumetric fan. The air volume delivered is proportional to the number of revolutions. The three-blade impeller is driven and exhausted by two impellers three times per rotation, compared with the two-leaf type. The gas pulsation is reduced, the load change is small, the mechanical strength is high, the noise is low, and the vibration is small. There are two trilobal impellers on the two flat-lined shafts. The wheel and the elliptical chassis have a small gap between the inner surface of the hole and the impellers. The impellers rotate in a direction opposite to each other in the opposite direction. A certain amount of gas surrounded by the impeller is delivered from the suction side to the discharge side. Each impeller always maintains the correct phase by the synchronous gear, and does not touch each other. Therefore, it can be speeded up, does not require internal lubrication, and has a simple structure, stable operation, stable performance, and is suitable for various purposes, and has been applied to a wide range of applications. field.
How does a wind turbine work?
The principle of wind power generation is to use the wind to drive the rotation of the windmill blades, and then increase the speed of the rotation through the speed increaser to promote the generator to generate electricity. Converting wind energy into electricity is a fundamental way of using wind energy. Wind turbines generally consist of wind turbines, generators (including devices), steering gears (tails), towers, speed-limiting safety mechanisms, and energy storage devices.
What is the material of the induced draft fan impeller?
The working principle and basic structure of the blower and the induced draft fan are the same, and are collectively referred to as a ventilator. The ventilator is divided according to its function in the pipe network. The air blower is called a blower, and the suction air is called an induced draft fan. The blower is located at the inlet end of the system, and the working state is positive pressure; the induced draft fan is located at the exit end of the system, and the working state is positive and negative pressure.
What is the difference between an axial fan and a Roots blower?
There are many types of fans, and people who don't understand are often confused by a wide variety of fan names. Let's talk about the working principle and difference of centrifugal fan, Roots blower and rotary fan.
What are the main parameters of fan performance?
1 Mass flow: qm, the mass of gas flowing through the fan per unit time, unit: kg / s.
2 Volume flow: qvsg1, the volume of gas flowing through the inlet flange of the fan per unit time. Common units are: m3/s, m3/min, m3/h.
What is a card fan coil?
The card fan coil has an ABS panel, and the common fan coil surface is only a galvanized sheet.
What is the difference between the inner rotor and the outer rotor of the fan?
The inner and outer rotors are differentiated according to the nature of the motor.
The inner rotor is the transmission part of the motor inside, and the outer motor housing is static.
What is the difference between a high-voltage wound motor and a low-voltage wound motor?
The principle and structure of the high voltage winding motor and the low voltage winding motor are the same. The difference is. The high-voltage motor generally has a large capacity and volume, and the insulation of the winding is better. Then, the bearing has to adopt a special structure to solve the shaft current problem.
Is the high-voltage motor of the same power lighter than the low-voltage motor?
The high-voltage motor of the same power is heavier than the low-voltage motor. The core and winding weight of the high-voltage motor are similar, but the high-voltage motor has high insulation requirements, many coils, and the outer casing is larger than the low-voltage motor, which is heavier.
What types of motors are there for high voltage motors?
Sima 6KV high voltage motors are: Y series, YR series, YRKK series, Y2 series, YKK series, YKS series. The 10KV high-voltage motors are also available in the above series, and each series has a number of different motors.
What is a fan coil?
Fan coil is the ideal end product of the fan, consisting of heat exchanger, water pipe, filter, fan, water tray, exhaust valve, bracket and so on.
What is the fan efficiency?
Fan efficiency depends on the grade number and speed. Very model has a great relationship, generally between 70% and 90%.
What valves are on the fan coil?
From top to bottom, from left to right: Y-type filter, gate valve, flow meter, solenoid valve, gate valve, drain valve.