Gas separation – With means for liquid separation
Patent
1992-10-02
1993-07-20
Hart, Charles
Gas separation
With means for liquid separation
55337, 554594, 55461, 55DIG17, B01D 4512
Patent
active
052288900
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a cyclone separator comprising a cyclone chamber, a gas inlet directed tangentially to the wall of said cyclone chamber, and a gas outlet.
BACKGROUND OF THE INVENTION
The present invention refers to a field in gas cleaning, which concerns separating liquid droplets and dust from a gas. The gas can be e.g. compressed air and the liquid can be water. For cleaning of gas, cyclone separators are generally employed. The principle of cyclone separators is tested. Gas is conducted to a cyclone chamber and caused to flow at high speed in the chamber. Dust and liquid droplets in the gas are deposited on the wall of the chamber along which they flow down to a collecting vessel. The vessel is emptied either automatically or manually. The gas is discharged through a filter.
In practice, the gas inlet of a small cyclone separator is directed substantially axially to the cyclone chamber. In a lower portion of the cyclone chamber, above the collecting vessel, the gas is caused to turn abruptly, the gas being discharged through an outlet portion which is fitted with a filter and arranged centrally in the chamber, while dust and liquid droplets impinge on a plate. The dust and the droplets drip from the plate and the wall and, finally, down into the collecting vessel which can be equipped with a drain outlet.
The inlet of a large cyclone separator, the height of which can be some ten metres, is directed in a substantially tangential manner. The gas inlet extends along a minor, upper part of the height of the cyclone chamber. Gas flows helically down in the chamber, while dust and liquid droplets are deposited on the wall of the cyclone chamber.
OBJECTS AND ADVANTAGES OF THE INVENTION
It is difficult to achieve an adequate degree of efficiency with conventional cyclone separators.
The object of the present invention is to overcome this problem.
A further object is to provide a cyclone separator which can be manufactured as a unit in an inexpensive, quick and easy manner. One more object is to provide a cyclone separator for large flows, which can be obtained by making the unit longer.
The invention also brings advantages in the form of a further improved degree of efficiency. In a cyclone separator according to the invention, use can be made of a larger filter as compared to a conventional cyclone separator of a corresponding size. The invention also permits embodiments which have a satisfactory degree of efficiency for highly varying flows of gas. In one embodiment of the invention, the flow of gas can range from 100 to 3000 l/min.
BRIEF DESCRIPTION OF THE INVENTION
The objects are achieved by means of a cyclone separator which according to the invention comprises a cyclone chamber, a gas-feeding nozzle and a gas outlet. The nozzle is directed substantially tangentially to the wall of the cyclone chamber and extends along substantially the entire height of the cyclone chamber. A liquid trap is arranged in the wall of the cyclone chamber and extends along substantially the entire height of the cyclone chamber.
Further embodiments are stated in the subclaims.
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention is described below with reference to the accompanying drawings.
FIG. 1 is a schematic side view of a cyclone separator according to the invention, and
FIG. 2 is a schematic, sectional view from above of the cyclone separator.
The embodiment of a cyclone separator according to the present invention as shown in the drawings is an exemplification. The cyclone separator 1 comprises a cyclone chamber 2 standing vertically, the upper end of which is closed by means of a cover member 3 and the lower end of which is closed by means of a base member 4.
Via a gas inlet 5, the gas to be cleaned is introduced into the base member 4. In this example, the gas is compressed air having a positive pressure of about 8 bars. The gas inlet is connected with an inlet chamber 6 which is described in more detail below. The cover member 3 is formed with a gas outlet 7 which
REFERENCES:
patent: 3528216 (1970-09-01), Garrett
patent: 4801310 (1989-01-01), Bielefeldt
Sjostedt Lennart
Soderlund Patrik
Hart Charles
Sunstrom Safety AB
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