Jet Vacuum Systems
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Catalog excerpts

Jet Vacuum Systems - 2

The basics of jet vacuum pumps Jet vacuum pumps are used to create and maintain the vacuum in evaporators, driers, in distillation and rectification plants, and in the processes of freeze drying, polycondensation, degassing and deodorizing. Generally, multi-stage vacuum pumps are used for suction pressures under 100 mbar. For the most effective use of energy, the motive medium and the condensable compounds are condensed between two stages. These sorts of equipment consist fundamentally of jet pumps and condensers or of a combination with other vacuum pumps such as, e.g. liquid ring vacuum...

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Jet Vacuum Systems - 3

Jet vacuum pumps for vacuum distillation columns in oil refineries Steam jet liquid ring vacuum pump for the distillation column of a refinery suction stream: 6,198 kg/h or 689,337 m3/h suction pressure abs.: 8 mbar counter pressure abs.: 1,500 mbar Jet vacuum pumps are used in combination with liquid ring pumps to create vacuum in crude oil distillation columns. The combination of the two pump types together with simple but appropriate control systems facilitate a low consumption of cooling water, power and motive medium. Condensers are arranged between the jet vacuum pumps. As far as...

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Jet Vacuum Systems - 4

Vacuum plants for sea water desalination Water is in increasingly short supply world-wide. Many countries do not have a sufficient number of water reservoirs and are forced to cover their water needs by taking sea water. The three most important processes in sea water desalination are: RO – Reverse Osmosis (membrane process) MED – Multi-effect distillation MSF – Multi-stage flash Evaporators are used in the MED- and MSF-processes. These operate under vacuum in order to achieve the best performance rate. In all cases, the vacuum is created using multi-stage steam jet vacuum pumps. Together...

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Jet Vacuum Systems - 5

Product vapour driven jet vacuum pumps Jet vacuum pumps are generally driven by water vapour. Water vapour is easily obtained in industry and has proved itself as a good motive medium. When the motive steam in the jet vacuum pump condenses, condensate is produced which in some cases must be regarded as waste. Suitable motive media for product vapour driven jet pumps are organic vapours such as monochlorobenzene, trichlorethylene, toluol, butandiol, ethylene glycol, furan, phenol, methylene chloride etc. This can be avoided if the product vapour which is produced during the process, is used...

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Jet Vacuum Systems - 6

Jet vacuum plants for the chemical industry Versatile pump units have been developed by GEA Wiegand for the chemical industry. The multi-stage jet vacuum pumps reach suction pressures of up to 0.01 mbar and are thus able to handle nearly all areas of application. When designing the plants, particular emphasis is placed on the standards and safety regulations demanded in the chemical industry. Jet vacuum pumps can be manufactured in almost any material, even porcelain, graphite and glass, in correspondence with process engineering demands. GEA Wiegand jet vacuum pumps are robust,...

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Jet Vacuum Systems - 7

Vacuum system with closed cooling water operation Multi-stage steam jet pumps are employed in the edible oil industry where the product is refined and freed of unwanted aromas by distillation under vacuum (1–5 mbar). Such a vacuum system has to fulfil the following requirements: resistant to condensing fatty acids low energy consumption environmentally friendly reliable with minimum maintenance Jet pumps from GEA Wiegand have no difficulty in meeting these requirements. Newly-developed designs mean that these steam jet pumps have favourable consumption values, and, when operating with...

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Jet Vacuum Systems - 8

Condensation plants with surface or mixing condensers, to condense vapour and steam/gas mixtures under vacuum. Vacuum/steam jet cooling plants to produce cold water, cool liquids, even of aggressive and abrasive nature. Jet pumps to convey and mix gases, liquids, and granular solids; for direct heating of liquids; as heat pumps; and in special design for the most diverse elds of application. Overview on our Range of Products Steam jet vacuum pumps also product vapour driven; also in combination with mechanical vacuum pumps (hybrid systems); extensive application in the chemical,...

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