Fluid sprinkling – spraying – and diffusing – Terminal member adjustably or shiftably connected to flow...
Patent
1996-07-15
1998-08-11
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Terminal member adjustably or shiftably connected to flow...
239273, 384123, B05B 1506, B05B 1508
Patent
active
057915652
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a monitor for ejecting extinguishing agents towards fires, such as water, foam or mist jets. The invention relates more particularly to a foot support carrying the monitor.
PRIOR ART
Monitors for fighting fires are already known. They mainly consist of a pipe system which is mounted on a foot plate, through which water or other fire-fighting agents can flow into the pipe system, and a controllable nozzle which can be directed towards the fire to be fought. The nozzle itself together with its pipe is usually adjustable around a horizontal shaft, whereas the whole monitor is rotatable around a vertical shaft in the foot support. In this way the nozzle can be directed, within certain limits, towards a randomly chosen target.
Monitors are available in different sizes and for different pressures of the through-flowing liquid. One example of such a water pressure is 16 bar. The capacity of a monitor having this pressure may be up to 40.000 liters/minute.
The liquid which is to be ejected through the monitor is usually water, whereby a normal water jet is obtained which, however, by means of a plate in the nozzle, may be formed into droplets or mist. If foam agents are added to the water an ejection of foam is achieved.
Monitors of the aforementioned type are usually used on oil rigs or the like and they have been anchored in strategic positions and can be used quickly.
THE TECHNICAL PROBLEM
Water cannons according to the prior art work satisfactorily per se. Through the high water pressure which must be brought about in these water monitors a high tension however arises in the pipe system, which makes it necessary to arrange a thrust bearing in the rotatable area for taking up these forces. This first bearing may be a standard ball bearing, or ball tracks may be formed directly in the rotatable parts which are facing each other and filled with balls. To make a bearing of this type means an extra cost which is unnecessary as the rotating movements are not large or do not occur often. In an environment, for example on an oil rig, where salt water often splashes over the monitors, the bearings also have to be effectively protected against rusting solid.
THE SOLUTION
It has therefore long been desired to simplify and make bearings for such monitors cheaper and more reliable and one has therefore, according to the invention, arrived at a monitor for ejecting jets of water, foam or mist, comprising a foot support consisting of a lower disco-shaped part having a central through-hole and an upper rotatable part having a central through-hole concentric with the hole in the lower part and a ring attached to the lower part which rotatably connects the upper part to the lower part, and a pipe arrangement carrying the ejecting nozzle attached around the hole in the upper part of the foot support, characterized in that the upper rotatable part comprises an annular flange around the hole which extends outwardly and which is arranged between the lower disc-shaped part and the ring, whereby through-holes are arranged from the central hole in the upper part to the side of the flange which faces the ring so that, in operation, during ejection of the liquid when this is subjected to pressure in the central hole, it will flow from the central hole into the space between the flange and the ring and thereby form a hydrostatic bearing.
According to the invention it is suitable if sealing rings are arranged for sealing the hydrostatic bearing from the surroundings.
It is also suitable, according to the invention, that a seal is arranged around the lower part of the upper part for preventing water from flowing in between the lower part and the rotatable flange.
The ring which connects the upper part is, according to the invention, suitably screwed to the lower part.
Screws are arranged, according to the invention, on the lower side of the lower part for screwing to a base.
DESCRIPTION OF THE FIGURES
The invention will in the following be described more in detail with re
REFERENCES:
patent: 1674693 (1928-06-01), MacGregor
patent: 2086724 (1937-07-01), McAulay
patent: 3119639 (1964-01-01), Adams
patent: 3685875 (1972-08-01), Dee
patent: 3752542 (1973-08-01), Kraus
patent: 4498626 (1985-02-01), Pitchford
patent: 4674686 (1987-06-01), Trapp
patent: 4892418 (1990-01-01), Asada et al.
patent: 5249632 (1993-10-01), Sparling et al.
Evans Robin O.
Kashnikow Andres
Svenska Skum AB
LandOfFree
Hydrostatic bearing for monitors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrostatic bearing for monitors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrostatic bearing for monitors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-380730