Esk Ceramics Gmbh&co. Kg

3m Innovative Properties Company

Wacker-chemie Gmbh

Maersk Olie Og Gas A/s

Robert Boschgmbh

Maersk Olie Gas A/s

Armin Kayser

Wendy L Thompson

Ryan E Marx

Kent S Tarbutton

Karl A Schwetz

Gezahegn D Damte

Hubert Thaler

Stefanie Wildhack

Frank Kuester

Jay R Lomeda

Frank Meschke

Klaus Wahrmann

Krishna Uibel

Siegfried Müssig

Ursula Kayser

Samuel Joly

Fabian Pöhling

Simone Raynoschek

Ilonka Maier

Dirk Schmiederer

Maximilian Bader

Johanna Zimmermann

Fabian Poehling

Siegfried Muessig

Susanne Rieder-Otterburg

Dietmar Schonhoven

The invention relates to a plate heat exchanger composed of a plurality of plates (), preferably made from sintered ceramic material, in which fluid-flow guide channels () are formed as a system of channels in such a way that a substantially meandering profile of the fluid flow is obtained over the surface area of the respective plate, the side walls () of the guide channels () having a plurality of apertures (), which lead to turbulence of the fluid flow. The invention also relates to a method for the production of such a plate heat exchanger, in particular by a diffusion welding process in which the plates are joined to form a seamless monolithic block. The plate heat exchanger according to the invention is suitable in particular for applications at high temperatures and/or with corrosive media, and also as reactors.

Plate heat exchanger, method for its production, and its use

Provided herein is a separating device for removing sand and rock particles in the extraction of liquids or gases from wells drilled in rock having a plurality of brittle-hard annular discs stacked one on top of another and axially braced by a supporting structure. The annular discs have at least three spacers uniformly distributed over the circumference on their upper side. The discs are stacked on each other such that the spacers lie one over another and a separating gap with a height of 0.05-1 mm, preferably 0.2-0.5 mm, is present between each of the discs. Similarly, another embodiment of the separating device has a plurality of brittle-hard bush-shaped elements with slits formed therein.

Separating device for removing sand and rock particles

A separating device for removing sand and rock particles, and is an integral component of extraction equipment for extraction of liquids or gases from deep wells, having at least one ceramic filter module comprising: an annular stack of annular discs, the upper side of which has at least three elevations uniformly distributed over the circumference of the discs, the discs are stacked such that a separating gap for the removal of sand and rock particles is present between the individual discs, a coupling-on element at the upper end and a coupling-on element at the lower end of the annular stack, a clamping device bracing the annular stack, an outer cage, a coupling element at the upper end and a coupling element at the lower end of the filter module connecting the filter module to further components of the extraction equipment.

Wear-resistant separating device for removing sand and rock particles

Shaped body based on polycrystalline SiC and having a density of greater than 90% of its theoretical density and an adherent graphite layer on its surface, wherein the graphite layer is crystalline, has a thickness of 0.1-100 &mgr;m and has been produced by thermal surface decomposition of the SiC after it has been sintered to closed porosity.

Graphite-coated shaped body made of sintered silicon carbide

Growing community of inventors

Buchenberg, Germany

Armin Kayser