Pumps – One fluid pumped by contact or entrainment with another – Contact or entrainment within rotary impeller
Patent
1986-02-13
1987-12-01
Smith, Leonard E.
Pumps
One fluid pumped by contact or entrainment with another
Contact or entrainment within rotary impeller
55437, 55443, F04C 1900
Patent
active
047101059
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a liquid-ring compressor unit having a horizontal shaft and a compressor housing in which, subsequent to the, in some cases, last compressor stage, a pressure chamber is made in connection with a pressure connecting piece, which pressure chamber is divided up by a wall, which projects upward into the geodetically upper area of the pressure chamber at least up to the shaft level and at least up to the level of the pressure opening of the compressor stage, into a first area and a second area which are connected to one another above the wall while forming a route for the delivered medium and the second area of which is connected to the pressure connecting piece.
As is known, liquid-ring compressors require an operating liquid which participated in forming the compressor cells, seals gaps inside the delivery chambers and contributes to the dissipation of the heat developing during compression. It is unavoidable that a portion of the operating liquid ingresses into the delivered gas and, together with the latter, emerges through the pressure opening out of the delivery chamber of the compressor stage and is fed further by the delivered gas. In general, therefore, a liquid separator is subsequently connected in which the liquid which is fed along with the gas is separated from the gas flow, so that, at the outlet of the separator, gas emerges which, although saturated with vaporized liquid, is otherwise essentially fluid free. The liquid remaining behind in the separator is then either resupplied to the compressor, the fluid being cooled in the circulation, or discharged via a separate outlet.
Liquid separators are known which are allocated to the compressor as separate components. For example, embodiments are known in which the liquid separator is set up in an open or closed type of construction next to the compressor, which is associated with a considerable space requirement. It is also known to position the liquid separator above the compressor on the upper-lying suction connecting piece; apart from the considerable space requirement and the complicated construction, this has the disadvantage that care has to be taken by means of control devices to ensure that, after the unit is switched off, not too much liquid flows back into the compressor so as to guarantee problem-free restarting.
In another known embodiment, the separator is integrated in the base frame of the unit; but this is complicated and expensive to embody, with the feedback of operating liquid into the compressor after the unit is switched off also being problematic. It is also known to arrange the compressor in a pot-like designed separator vessel, with the separator chamber surrounding the compressor. This is only possible with small compressor constructions. Moreover, this arrangement has design disadvantages, because either suction and pressure connecting pieces have to be arranged on one axial side of the compressor in a housing part or--if one of the connecting pieces is arranged on the separator vessel--the vessel must be appropriately stable and therefore expensively made (DE-C No. 1,293,942).
Finally, it is known (FR-A No. 2,225,637) to arrange a trough beneath the pressure chamber--which contains a partition wall for deflecting the flow of the medium--and inside the pedestal or base plate of the compressor, which trough forms a separator vessel; since this trough lies essentially deeper than the working chamber of the compressor, the feedback of liquid after the compressor is switched off is problematic.
Liquid separators are also known in vane-cell compressors. These liquid separators are used to re-extract the oil used for lubricating the compressor, provided this oil has ingressed into the gas flow. However, there are fundamental differences in the separation of the liquid in liquid-ring compressors on the one hand and vane-cell compressors on the other hand. In liquid-ring compressors, the liquid directly participates in the formation of the compressor cells, with large quantities of the operating liquid be
REFERENCES:
patent: 1530973 (1925-03-01), Anderson
patent: 1626768 (1927-05-01), Vollmann
patent: 1702939 (1929-02-01), Greenfield
patent: 2057381 (1936-10-01), Kenney et al.
patent: 2070151 (1937-02-01), Westin
patent: 2227441 (1941-01-01), Coleman
patent: 3771898 (1973-11-01), Segebrecht
patent: 3884596 (1975-05-01), Hoffmeister
Auschrat Siegfried
Segebrecht Udo
SIHI GmbH & Co. KG
Smith Leonard E.
LandOfFree
Liquid-ring compressor unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid-ring compressor unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid-ring compressor unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1928489