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1. The meaning of mixed flow turbine
Mixed flow turbine English [m ɪ kst fl əʊˈ t ɜ동 ba ɪ n] American consumer electronics [m ɪ Peishan kst flo ʊˈ t ɜ동 rba ɪ n] network mixed flow turbine; Mixed flow turbine
2. What is a turbine flow meter
Turbine flow meter? It should be a turbine flow meter, which is directly transliterated by some people as a transparent buried flat flow meter. Turbine flowmeter is a new type of intelligent instrument developed using advanced ultra-low power single-chip microcomputer technology, which integrates turbine flow sensor and display integration. It has obvious advantages such as compact structure, intuitive and clear readings, high reliability, no interference from external power sources, lightning resistance, and low cost. The turbine flow sensor is paired with a display instrument and a sales meter. Sensors have the characteristics of high accuracy, good repeatability, long lifespan, and easy operation. It can be widely used in industries such as petroleum, chemical, metallurgy, and papermaking to measure the instantaneous flow rate and total volume of liquids.
3. Working principle of turbojet and turbofan engines
The core working principle of turbojet and turbofan engines is to generate thrust by inhaling air, compressing, and burning high-speed airflow. However, the key difference is that turbofan engines have an external duct that allows some air to be directly ejected without passing through the combustion chamber, resulting in higher efficiency, lower fuel consumption, and less noise during subsonic flight.
.1. Core working principle (commonality) Both engines belong to gas turbine engines, and the working process of their core engin
2. Compression: The air sucked in passes through the multi-stage compressor blades and is severely compressed, causing its pressure and temperature to significantly increase.
. High pressure air is the foundation of efficient combustion3. Combustion: High pressure air enters the combustion chamber (Combustor), mixes with injected aviation kerosene, and ignites, instantly producing gas with extremely high temperature and pressure
4. Exhaust: The high-temperature and high-pressure gas flows backwards at high speed through the turbine blades, driving the turbine to rotate at high speed. The turbine and the preceding compressor are located on the same shaft, which drives the compressor to continue working. Finally, the gas is sprayed out at an extremely high speed through the nozzle, generating a forward reaction force, known as thrust, according to Newtons third law.
2. Core difference (unique design of turbofan engine) The turbofan engine adds a huge front-end fan and a bypass duct on the basis of the core engine, which is its essential difference from the turbojet engine.
. 1. All the air sucked into a turbojet engine must flow through the core engine (compressor combustion chamber turbine). It relies on the ejected high-temperature gas to generate all the thrust. This design is highly efficient during supersonic flight, but has high fuel consumption and noise during subsonic flight.2. Turbofan engine * Core Flow: A portion of the air flows into the
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