- Ejector Design Calculation Software Download
- Ejector Design Calculation Software Online
- Ejector Design Software
Amibroker with crack. The term jet ejector describes a device in which a pumping effect is achieved using a motive fluid. A jet ejector requires no mechanical drive and has no moving parts. This basic principle applies to every jet ejector in different models and ranges of application. The application determines the design of the flow section.
A steam jet ejector is illustrated below as example (steam serves as motive fluid to create vacuum). The function depends, above all, on the design of the motive nozzle (2) and of the diffuser (4 + 5). The motive fluid passes successively through these two components.
The flow section will change along this path. The pressure in the motive nozzle (2) decreases and the velocity rises. Conversely, the flow is decelerated in the diffuser (4 + 5) while its pressure increases to the discharge pressure at the outlet of the jet ejector.
The section between motive nozzle (2) and diffuser (4 + 5) has the lowest static pressure, approximately equivalent to the suction pressure ps. At this point the suction flow enters into the ejector head (3) through the suction connection B and is mixed with the motive fluid flowing with high velocity. Part of the kinetic energy is transferred to the suction flow. Motive flow and suction flow pass together - as a mixture - through the diffuser, loosing velocity and
gaining pressure. The increase from suction pressure ps to discharge pressure pd corresponds to the delivery head for the suction flow or to the pressure difference of the jet ejector. The ratio pd / ps is the compression ratio of a jet ejector.
gaining pressure. The increase from suction pressure ps to discharge pressure pd corresponds to the delivery head for the suction flow or to the pressure difference of the jet ejector. The ratio pd / ps is the compression ratio of a jet ejector.
Ejector Design Calculation Software Download
- An ejector is intended to move high gas-cut fluids and has a convergent section for an entry to the straight throat which is again followed by a divergent section. Steam can be used as the motive fluid in either case. The reason for the lecture is that if you a trying to pump liquid you don't want to use and ejector (velocities get pretty high).
- Wafer type design has advantage of easy replacement of ejector in case of eventual modification of technological parameters as well as better access for servicing. The body of the ejector can be cast, machined from a forge, or it is welded from bent centring. Suction nozzle can be manufactured by machining.
- Ejector Design Calculation Software. Application: Lifting of liquids Calculator steam jet vacuum pump Download Links. Approximated calculation of a steam jet vacuum pump. GEA Wiegand offers you a calculator for the approximated calculation of a steam jet vacuum pump. To use the calculator click here: Calculator.
Ejector Installation. Ejectors may be installed at any orientation. However, it is very important to provide a provision to remove the condensate or solid particles from the entrained gases of the ejector. Since any condensed or solid particles may reduce throughput capacity of the ejectors.
Ejector Design Calculation Software Online
ln a jet ejector the static pressure energy of the motive flow which cannot be directly transferred is thus converted into kinetic energy. This kinetic energy can be released to the suction flow by impulse transfer while both flows mingle. Calibration tube for mac. Vertex vx 3200 programming software. The diffuser converts the kinetic energy of the mixture consisting of motive flow and suction flow back into static pressure energy.
Ejector Design Software
ln the steam jet vacuum ejector illustrated below, the critical pressure ratio is exceeded in the motive nozzle (2) (this can be recognized by the expansion of the nozzle cross-section downstream the minimum throat diameter.) The steam velocity exceeds the sonic velocity accordingly. Motive flow and suction flow are mixed at supersonic velocity and then decelerated to the sonic velocity upon reaching the diffuser throat. ln the diverging section of the diffuser, the pressure finally increases to the discharge pressure pd.