How does an ejector work?

How does an ejector work?

An Ejector works by accelerating a high pressure stream (the ‘motive’) through a nozzle, converting the pressure energy into velocity. The two fluid streams then travel through the diffuser section of the Ejector, where velocity is decreased as a result of the diverging geometry and pressure is regained.

What is ejector system?

The ejector (sometimes called eductor) system lifts the well water with a nozzle and venturi fed by water under high pressure, and so is not limited to suction lift.

How ejector pump creates vacuum?

In an ejector, a working fluid (liquid or gaseous) flows through a jet nozzle into a tube that first narrows and then expands in cross-sectional area. The fluid leaving the jet is flowing at a high velocity which due to Bernoulli’s principle results in it having low pressure, thus generating a vacuum.

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 an ejector used in a power plant?

To prevent excessive accumulation by removing the noncondensable gases, most power plants use steam jet air ejectors and/or liquid ring vacuum pumps. However, reduction of this air in-leakage means fewer requirements for ejection steam or electrical power for vacuum pumps.

What is the ejector pump used for?

A sewage ejector pump, also called a pump-up ejector system, is used when a bathroom, laundry room or any other type of plumbing fixture is located below the level of the main sewer or septic line flowing from the house .

What does ejector mean?

Definition of ejector. 1 : one that ejects especially : a mechanism of a firearm that ejects an empty cartridge. 2 : a jet pump for withdrawing a gas, fluid, or powdery substance from a space.

What is the purpose of air ejector?

The air ejector draws out the air and vapours which are released from the condensing steam in the condenser. If the air were not removed from the system it could cause corrosion problems in the boiler.