How does a Thermocompressor work?
A thermocompressor is a steam control device that uses high-pressure steam (motive steam) to induce flow from a lower pressure steam source (suction steam) and discharge the mixture at an intermediate pressure. The high pressure is used to create a high velocity jet that mixes with and accelerates the suction steam.
What is motive steam?
a motive steam nozzle, a suction chamber and a mixing diffuser. The motive steam enters the ejector through the motive fluid nozzle. and is expanded into the mixing diffuser converting pressure energy into. velocity energy. The steam entrains the suction gases and the mixture.
What is steam compressor?
A steam ejector sends high-pressure (motive) steam through a reduced passageway (nozzle), accelerating it and converting its pressure energy to velocity. This high velocity energy in turn creates a suction effect that will draw the low-pressure steam into the mixing chamber and entrain it into the motive flow.
What is motive steam pressure?
High pressure steam is introduced through a nozzle, as a high velocity jet, into a mixing chamber where it meets the low pressure vapor to be compressed. By virtue of its kinetic energy, the motive steam entrains the low pressure vapor into a converging–diverging conduct known as the diffuser.
How does a steam ejector work?
Steam ejectors use steam or gas instead of moving parts to compress a gas. In a jet or ejector, a relatively high-pressure gas, like steam or air, expands through a nozzle. The steam or air converts that pressure or potential energy to velocity or kinetic energy.
What is a thermal compressor?
is an ejector used to compress waste or exhaust steam or any other gas through a moderate range of compression above atmospheric pressure. (
How do ejectors work?
An ejector is based upon Bernoulli’s Principle which states: ‘When the speed of a fluid increases its pressure decreases and vice versa’. The ejector uses a converging nozzle to increase the fluid velocity to transform high static pressure into velocity pressure.
Why ejector is used?
The purpose of the ejector is to transport and compress a weight of induced fluid from the suction pressure to the exit pressure. By staging ejectors it is possible to obtain a very large range of suction pressures from atmospheric down to as low as one micron of mercury absolute.
How do I increase steam pressure?
You could heat the steam at constant volume, so the pressure will rise.
What is use of ejector?
How many types of ejectors are there?
Ejectors are generally categorized into one of four basic types: single-stage, multi-stage non-condensing, multi-stage condensing and multi-stage with both condensing and non-condensing stages. Single-stage ejectors are the simplest and most commonly used construction.
What is a thermocompressor used for?
Principle of Operation The Thermocompressor is an ejector used when both motive and suction gases are steam. Thermocompressors have automatically-controlled spindles. They are used when pressure suction or discharge conditions vary and it is necessary to control discharge pressure or flow.
Can thermocompressors compress flash vapor?
Thermocompressors also can be used to compress low-pressure flash vapor. The vapor can be obtained by flashing steam condensate or by flashing an aqueous process stream (1). On its own, the flash vapor isn’t at a high enough pressure to be useful.
Can a thermocompressor be used in a dryer?
This type of system has been quite successful but limits the flexibility in adjusting the dryer pressures. It is possible to apply thermocompressors to any given bank of dryers either eliminating or reducing blow thru to subsequent banks and allowing complete flexibility in the dryer temperature.
What are the applications of exhausters and compressors?
Exhausters & Compressors Applications Fig. 426 Thermocompressor application in watchcase vulcanizers. Watchcase vulcanizers used in making rubber tires and tubes offer an excellent example of Fig. 426 Steam Jet Compressors engaged in recirculation.