Turbo:
It is a fan in the engine of a car or airplane that uses exhaust gases to blow fuel vapor (fuel vapor) into the engine to improve the efficiency of the engine. Engine performance.
Turbo, or turbocharging, referred to as T, was first used in the automotive field by the Swedish Saab (SAAB) automobile company. Many people now know that turbocharging is abbreviated as TURBO. If you see TURBO or T on the rear of a car, it means that the engine used in the car is a turbocharged engine. For example, Volkswagen Bora's 1.8T, Passat's 1.8T, Audi's 2.0T, etc. The engines of these cars work by burning fuel in the engine cylinder to produce power. When the engine displacement is certain, if you want to increase the engine's output power, the most effective way is to provide more fuel for combustion. However, it is easy to provide more fuel into the cylinder, but it is difficult to provide a sufficient amount of air to support complete combustion of the fuel with a traditional engine air intake system.
Take the working principle of a gasoline engine as an example. For every kilogram of gasoline supplied to the cylinder, approximately 15 kilograms of air need to be sucked into the cylinder to ensure full combustion of the gasoline. However, the volume of these 15 kilograms of air will be very large. It is not easy to completely inhale such a large volume of air just by relying on the vacuum generated by the cylinder during the engine intake process. Therefore, it is particularly important to improve the engine's ability to inhale gas, that is, to improve the engine's charging efficiency. There are two methods to increase the air intake of the engine. The first is the rear-stage supercharging technology. In principle, the rear-stage supercharging technology uses a special compressor to pre-compress the gas before entering the cylinder to improve the air intake into the cylinder. The density of the gas reduces the volume of the gas. In this way, the mass of the gas per unit volume is greatly increased, and the amount of air intake can meet the combustion needs of the fuel, thereby achieving the purpose of increasing the engine power. The compressor used in the supercharging process is also called a supercharger. The second type is the front-stage air intake technology, which still uses the vacuum of the cylinder to replenish air into the cylinder from the intake branch pipe. No matter what kind of technology it is, controlling the air intake volume is the key.
The engine supercharging method can basically be divided into four categories according to the different energy sources used to drive the supercharger:
1. The first type is a mechanical supercharging system, which increases The compressor is directly driven by the engine crankshaft through a gear (or chain, etc.).
2. The second type is the exhaust gas turbocharging system. The supercharger is driven by the exhaust gas discharged when the engine is working.
3. The third category is the compound supercharging system, which uses both an exhaust gas turbocharger and a mechanically driven supercharger on the engine. In addition, there are other boosting methods such as inertial boosting and air wave boosting.
4. The fourth category is the front-stage vacuum control system, which uses the engine cylinder vacuum control to inject air into the cylinder from the intake branch pipe. This technology was invented in Taiwan in 2003, and the Taiwan patent number is M301275. -Baojiu small horsepower turbine.
Pneumatic (generally refers to pneumatic motor):
Pneumatic motor is a prime mover that uses compressed air as the working medium. It uses the expansion of compressed gas to convert pressure energy into Mechanical energy power device.
Although various types of air motors have different structures and working principles, most of them have the following characteristics:
1. They can have stepless speed regulation. As long as the opening of the intake valve or exhaust valve is controlled, that is, the flow of compressed air is controlled, the output power and speed of the motor can be adjusted. The purpose of adjusting the speed and power can be achieved.
2. It can rotate forward or reverse. Most air motors can achieve forward and reverse rotation of the air motor output shaft by simply using a control valve to change the motor inlet and exhaust directions, and can reverse direction instantaneously. There is little impact when switching between forward and reverse. A major advantage of air motor reversing operation is its ability to ramp up to full speed almost instantaneously.
A vane air motor can ramp up to full speed in one and a half revolutions; a piston air motor can ramp up to full speed in less than a second. By using the control valve to change the air intake direction, forward and reverse rotation can be achieved. It takes a short time to achieve forward and reverse rotation, is fast, has little impact, and does not require unloading.
3. Safe to work, not affected by vibration, high temperature, electromagnetic, radiation, etc., suitable for harsh working environments, even under adverse conditions such as flammable, explosive, high temperature, vibration, moisture, dust, etc. can work normally.
4. It has overload protection and will not malfunction due to overload. When overloaded, the motor only reduces the speed or stops. When the overload is relieved, it can immediately resume normal operation without causing damage to the machine parts or other faults. It can operate continuously at full load for a long time with small temperature rise.
5. It has high starting torque and can be started directly with load. Start and stop quickly. Can be started with load. Start and stop quickly.
6. Wider power range and speed range. The power can range from a few hundred watts to tens of thousands of watts; the rotational speed can range from zero to ten thousand revolutions per minute.
7. Easy to operate and easy to maintain and repair. The air motor has a simple structure, small size, light weight, high horsepower, easy operation and convenient maintenance.
8. Using air as the medium, there are no supply difficulties. The used air does not need to be processed. It can be supplied centrally and transported over long distances without pollution when put into the atmosphere.
Because the air motor has many of the above characteristics, it can work in harsh environments such as moisture, high temperature, and high dust. In addition to being used as power in rock drilling, drilling, loading and other equipment in mining machinery, it is also widely used in shipbuilding, metallurgy, chemical industry, papermaking and other industries.
Air motor is the best substitute for explosion-proof motor. In addition to standard models, we also have pneumatic reduction motor models equipped with reducers, with reduction ratios from 10:1 to 60:1.
Features include:
1) Variable speed;
2) Explosion-proof - no electrical sparks;
3) No heat during operation ;
4) It will not burn out;
5) It can rotate in both forward and reverse directions.
Electric valve:
Refers to a machine that uses electrical energy as the main energy source to drive the valve. According to its characteristics, it is divided into multi-turn (applicable to valves such as gate valves and globe valves that require multiple rotations of the handle to open and close operations, or partial-turn valves such as butterfly valves, ball valves, and plug valves driven by a worm gear transmission.) Partial-turn ( Generally used in butterfly valves, ball valves, plug valves and other valves that only need to be rotated 90 degrees to open and close.) Straight-through type (the transmission shaft of the actuator is in the same direction as the valve stem). Angle-through type (the transmission shaft of the actuator is in the same direction as the valve stem). Valve stem is vertical) etc. Because they are precision electrical components, they generally need to have certain protection (waterproof) requirements; according to the applicable working conditions, they are divided into explosion-proof and non-explosion-proof types; according to the voltage, they are mainly divided into AC380V and AC220V in my country; and according to the actuator Working characteristics are divided into switch type and regulating type.