Ejectors and steam jet ejectors document library graham. Get your kindle here, or download a free kindle reading app. Steam jet ejectors are employed in the chemical process industries and refineries in numerous. Basic ejector components are the steam chest, nozzle, suction, throat, diffuser and they discharge fig. The suction flow is compressed to a higher pressure. Steam jet ejectors are an essential part in refrigeration and air conditioning. Furthermore, countless chemical and petrochemical plants adopt ejectors for. Steam jet ejectors for the process industries mcgrawhill chemical engineering robert b. More about our steam ejectors croll reynolds designing high vacuum systems for the process industries. Steam jet ejectors for the process industries mcgrawhill chemical. Understanding ejector systems necessary to troubleshoot. Steam ejector systems for the process industries edwards vacuum.
Steam jet vacuum ejectors remove gases andor vapours from process operations thereby generating a vacuum in the reactor. Steam jet ejectors for the process industries mcgrawhill chemical engineering. Steam jet ejectors were for many years the workhorse of the chemical process industries for producing vacuum. The interstage condensers economise on the use of motive steam as the operating steam from the upstream stage. Through the acquisition of hick hargreaves in 2001 edwards have been instrumental in the development of steam ejectors from the original crude single stage. Selecting and optimizing steam jet ejectors and condensers for any vacuum level required for the process industries designing steam jet vacuum systems open file 220. Steam jet ejectors are based on the ejector venturi principle. A steam jet ejector is a simple device that uses pressurized steam to create a partial. Heat exchange institute standards for steam jet ejectors describes the method to convert the mixture air, water vapor, and various. An ejectorperformance curve gives the expected suction pressure as a function of watervapor equivalent loading fig. Large industrial plants often vent significant quantities of lowpressure steam to the atmosphere. Steam jet ejectors for the process industries 2005. Steam jet ejectors for the process industries by robert b. The most frequent applications are in energy and manufacturing industries.
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