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1. WO1991000761 - METHOD OF AND APPARATUS FOR PURIFYING A LIQUID

Publication Number WO/1991/000761
Publication Date 24.01.1991
International Application No. PCT/GB1990/001085
International Filing Date 13.07.1990
IPC
B01D 5/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
5Condensation of vapours; Recovering volatile solvents by condensation
F25B 49/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
49Arrangement or mounting of control or safety devices
02for compression type machines, plant or systems
CPC
B01D 5/0039
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
5Condensation of vapours; Recovering volatile solvents by condensation
0033Other features
0039Recuperation of heat, e.g. use of heat pump(s), compression
B01D 5/0051
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
5Condensation of vapours; Recovering volatile solvents by condensation
0033Other features
0051Regulation processes; Control systems, e.g. valves
F25B 49/027
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
49Arrangement or mounting of control or safety devices
02for compression type machines, plant or systems
027Condenser control arrangements
Applicants
  • KERRY ULTRASONICS LIMITED [GB/GB]; Hunting Gate Wilbury Way Hitchin Hertfordshire SG4 0TQ, GB (AllExceptUS)
  • LITTLEFORD, Gordon, Edwin [GB/GB]; GB (UsOnly)
  • CUSHING, Richard, Andrew [GB/GB]; GB (UsOnly)
Inventors
  • LITTLEFORD, Gordon, Edwin; GB
  • CUSHING, Richard, Andrew; GB
Agents
  • THOMSON, Roger, Bruce; W.P. Thompson & Co. Eastcheap House, Central Approach Letchworth Hertfordshire SG6 3DS, GB
Priority Data
8916081.613.07.1989GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF AND APPARATUS FOR PURIFYING A LIQUID
(FR) PROCEDE ET APPAREIL POUR PURIFIER UN LIQUIDE
Abstract
(EN)
In a solvent recovery system, especially for use in ultrasonic cleaning systems, a contaminated liquid (12) is boiled in a sump by electric heating means (14), creating a vapour zone (16) in which a cooling coil (18) is positioned. The cooling coil is part of a refrigeration circuit which includes a heat exchanger (20) incorporating a fan (22). The vapour height is maintained substantially constant in operation by monitoring the temperature in the refrigeration circuit and/or vapour zone, e.g. at the inlet (25) and outlet (26) of the container, and controlling the operation of the fan (22) in response thereto.
(FR)
Dans un système de récupération de solvant, notamment pour l'utilisation dans des systèmes de nettoyage ultrasonore, un liquide contaminé (12) est bouilli dans une citerne à l'aide de moyens de chauffage électrique (14) créant une zone de vapeur (16) dans laquelle un serpentin de refroidissement (18) est positionné. Le serpentin de refroidissement fait partie d'un circuit de réfrigération qui comprend un échangeur de chaleur (20) qui incorpore un ventilateur (22). La hauteur de la vapeur est maintenue sensiblement constante en service, par le contrôle de la température dans le circuit de réfrigération et/ou la zone de vapeur, par exemple à l'entrée (25) et à la sortie (26) du récipient, et par la man÷uvre du ventilateur (22) en conséquence.
Also published as
Latest bibliographic data on file with the International Bureau