Heat exchange – With cleaning means for heat exchanger
Patent
1991-04-17
1992-08-11
Rivell, John
Heat exchange
With cleaning means for heat exchanger
15 35, 15 351, F28G 112, B08B 904
Patent
active
051370816
ABSTRACT:
For cleaning at least one of the sides of the essentially vertical heat-transmitting walls between two fluids in a heat exchanger, solid particles are introduced into a stream of fluid, which particles are smaller than the distance between opposite walls defining the flow of fluid, said fluid with particles being introduced into part of a collection or distribution space above said walls and said particles being collected below said vertical walls and discharged from the heat exchanger. The particles are so heavy that they move downwards in the fluid even if this has an upward direction of flow between the walls. The particles are introduced above only part of the transverse plane above the vertical walls and switch means allow switching of said introduction to other parts of said transverse plane periodically. Thereby, the normal operation of the heat exchanger can continue with hardly any pressure loss during cleaning.
REFERENCES:
patent: 2801824 (1957-08-01), Taprogge
patent: 4079782 (1978-03-01), Soderberg et al.
patent: 4237962 (1980-12-01), Vandenhoeck
patent: 4366855 (1983-01-01), Spitz
patent: 4476917 (1984-10-01), Otake et al.
patent: 4531570 (1985-07-01), Dries
patent: 4562885 (1986-01-01), Pausch
patent: 4569097 (1986-02-01), Echols
Eskla B.V.
Leo L. R.
Rivell John
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