Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1989-03-29
1990-05-08
Pollard, Steven M.
Receptacles
Outlet or junction box type
Sectional receptacle
220 1B, 220428, 220901, B65D 8700
Patent
active
049230751
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a thermostatically controllable tank container with a support structure, which fixes the external dimensions of a parallelepipedic container and serves as a support for a circular cylindrical tank, with a non-supporting thermal insulation jaceket in the vicinity of the outside of the tank and in which between the tank skin and the thermal insulation jaceket ducts are provided for carrying a cooling or heating medium along the tank skin serving as a heat exchange surface.
Such a thermostatically controllable tank container is known from German patent 29 17 364, whose tank is mounted in a support frame in such a way that the temperature control medium flows completely round it and the planar wall faces of the support frame are equipped with thermal insulation material. This known tank container is essentially a conventional, standardized, parallelepipedic container with vertical and horizontal, planar wall faces, in which is mounted a relatively small tank, so that a large amount of space is left between the planar wall faces and the circular cylindrical tank skin. Therefore the tank volume is relatively small compared with the internal volume of the parallelepipedic, standardized container. Preferably vertical walls or webs can be provided, which subdivide the space between the circular cylindrical tank skin and the vertical walls of the thermal insulation jacket into ducts for carrying the cooling or heating medium.
British patent 1 225 325 discloses a similar thermostatically controllable tank container, in which the thermal insulation jacket has a circular cylindrical cross-section and is spaced with respect to the tank. The spacing is defined by circumferentially distributed reinforcing rings, which simultaneously fix the ducts for the cooling and heating medium. The tank with its thermal insulation jacket is arranged in a support structure, which substantially forms a spatial latticework. Also in the case of this known tank container, the space which is defined by the support structure is only incompletely utilized as transportion space.
In addition, unheatable or uncoolable tank containers are known, which have a tank with a circular cylindrical cross-section. The cross-section of the tank is so large that it as far as possible completely utilizes the square cross-section fixed by the standardization of the container. A thermal insulation jacket is then fitted to the outer wall of the container without any gap. In the vicinity of the vertical and horizontal planes, i.e. at the "critical points", the thermal insulation jacket can be somewhat weakened, in order to ensure a maximum tank volume. However, this tank container is neither coolable, nor heatable.
The problem of the invention is to provide a thermostatically controllable tank container of the aforementioned type, in which the external dimensions fixed by the support structure and standardization can be utilized in an optimum manner for the tank content and simultaneously a good and economic heating or cooling is ensured.
According to the characterizing part of the main claim this problem is solved in that the external diameter of the circular cylindrical tank substantially corresponds to the internal dimensions of the square cross-section of the support structure, that the thermal insulation jacket adapted to the contour of the circular cylindrical tank is arranged within the parallelepiped defined by the support structure and that the thermal insulation jacket with the circular cylindrical tank skin in cross-section forms crescent-shaped ducts for carrying the cooling or heating medium and which are longitudinally defined by the placing of the thermal insulation jacket on the tank skin in the corresponding vertical and horizontal plane (tangents in cross-section).
Due to the fact that the cross-section of the tank is as large as the square cross-section defined by the support structure, there is an optimum utilization of the cross-section made available through the container dimensions, i.e. through the corresponding s
REFERENCES:
patent: 1494979 (1924-05-01), Salisbury
patent: 3159005 (1964-12-01), Reed et al.
patent: 3688940 (1972-09-01), Knight et al.
patent: 3776414 (1973-12-01), Baker
patent: 4098426 (1978-07-01), Gerhard
patent: 4728000 (1988-03-01), Gerhard
patent: 4756447 (1988-07-01), Gerhard
Rode Heinz
Rohl Jurgen
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