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Korting steam ejectors
Producers: Ejector-based systems are particularly appropriate as primary vacuum producers, particularly where motive 70 korting op kleding steam is almost always available. Sound insulation fittings and accessories Download brochure (PDF) Any questions? Contact US, download our Brochure, ejectors are considered an alternative to mechanical vacuum pumps for a number of reasons: No source of power is required other than the motive gas; Because they have no moving parts, they are reliable vacuum producers; They are easy. Optimum Efficiency: An ejector represents a single-point design. Suction capacity cannot be increased. The following table summarizes the terms of jet ejectors laid down according to DIN standards 24290. The ratio pd / ps is the compression ratio of a jet ejector. Part of the kinetic energy is transferred to the suction flow. Important parameters involved in ejector sizing and staging include pressure of motive gas, required discharge pressure, suction pressure and relative mass flow rates of motive fluid to suction fluid. The function depends, above all, on the design of the motive nozzle (2) and of the diffuser (4 5).
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Barometric condensers cost less to buy and install. The mixture reaches its maximum velocity and lowest pressure at the Venturi throat (Fig. It has no moving parts. They usually save as much as 10 to 20 in motive steam, compared with single-nozzle units designed for the same conditions. That is, its optimum efficiency exists at a single set of conditions. A steam jet ejector is illustrated below as example ( steam serves as motive fluid to create vacuum). If specifications guarantee particular sound pressure levels, insulation thicknesses have to be calculated individually. Critical flow means the fluid velocity in the diffuser throat is sonic. The single-nozzle, fixed orifice is the simplest type of ejector. However, users should be aware that the barometric condenser is a direct-contact design. Specifying Ejectors While the ejector itself can be quite simple, specifying the optimum system to meet specific needs is not simple.
Designing steam JET vacuum systems - Graham Corporation
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