Patent ID: 6749747
Filing Date: 2004-06-15
Classification: B01D,F28D,F28F

Abstract:
A membrane module with an integrated heat exchanger,a number of rod-shaped, porous, ceramic filter elements comprising ceramic rods (1); the ceramic rods (1) have axis-parallel through-passage bore holes (1.1); the ceramic rods are arranged parallel to each other and clamped at their ends by caps (3, 4); the ceramic rods (1) are sealed off against the cap (3, 4) on their circumference; the cap (3) located on an end of the membrane module has an intake (2.1) for the supply of the medium to be treated, and the cap (4) located on the other end has an outlet (2.2) in order to carry away medium; each ceramic rod (1) is surrounded by a sheath pipe (5); between the outer surface of each ceramic rod (1) and the inner surface of the corresponding sheath pipe (5), an annular gap (6) is located; the annular gaps (6) are in conductive connection with each other; the caps (3, 4), the ceramic rods (1) as well as the sheath pipes (5) are enclosed in a housing (2), which is affixed to the caps (3, 4); the housing (2) has an intake (2.3) for introduction of permeate into the annular gap (6), and an outlet (2.4) for carrying away permeate from the annular gaps (6), and furthermore an intake (2.7) and an outlet (2.8) for conducting a heat transfer medium through the intermediate space between the individual sheath pipe (5) and the housing (2); each ceramic rod (1) is surrounded by a tube (8) with openings, which is located in the annular gap (6) and which extends at least over a significant part of its length.