The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2000
Filed:
Jun. 22, 1999
Peter Brucher, Oranienburg, DE;
Borsig GmbH, Berlin, DE;
Abstract
A heat exchanger (2) for cooling a hot process gas produced in a process gas generator (1) or a reactor is equipped with several cooling tubes (11), each of which is surrounded by an outer tube (12). Each cooling tube (11) and each outer tube (12) is welded at both ends to one water chamber (13, 14) each for feeding and draining of a cooling medium. The water chamber (13, 14) consists of a solid, strip-shaped piece into which, depending on the number of cooling tubes (11), circular wells (15) are introduced at a certain distance from one another. Each well (15) surrounds a cooling tube (11) and has a diameter equal to or larger than the inside diameter of the outer tube (12). The well (15) has a thin circular floor (16) of slight residual thickness in the area of the tube ends of the cooling tubes (11). A horizontal transfer line (4) carrying the hot process gas is connected to the the process gas generator (1). Each cooling tube (11) is accompanied by a coaxially arranged connecting tube (22) which projects into the cooling tube (11) on the one side and exits from the transfer line (4) on the other.