DE122949C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

JVi 122949 CLASS 17c.

There are already cold stores known, which in a side wall and in the ceiling each have a layer of air, both layers of air being connected to one another and be temporarily hired.

Furthermore, there are facilities of cold stores in each side wall and each have a layer of air in the ceiling, but which layers of air are also only temporary to be renewed.

Compared to these older facilities, the cold store, which is the subject of this invention forms at least two parallel layers of air in each side wall and in the ceiling of which one, inner, is only temporarily, the other, outer, is constantly renewed. Because the inner layer of air usually stands still and only temporarily, i. H. renewed during the cooler seasons, while the outer layer of air is constantly renewed more effective insulation and, accordingly, better cooling is achieved with a simultaneous reduction in ice consumption.

An embodiment of the new cold store is shown in the accompanying drawing.

FIG. 1 gives a vertical section along the line AB in FIG.

FIG. 2 is a horizontal section along the line CD in FIG. 1.

In each of the four enclosing walls a of the cold store, two spaces b and c are left in the wall, which contain air, so that each circumferential wall has two insulating layers of air.

The inner space b is at one corner below through a duct d, at the other corner above through a duct e with the outer air in connection. These channels d and e are closed on the outside by rotary valves or the like during the warmer seasons, but opened during the cooler seasons to allow the trapped air to be replaced by new air due to the draft that occurs naturally as a result of the temperature difference between the inside and outside air to replace.

The outer space c is also at one corner above through a channel f, at the. other corner below through a duct g in communication with the outside air. These channels f and g remain permanently open so that the air layer in room c is constantly moved and renewed and can thus have a constant insulating effect, which is no longer the case with a stationary air layer as soon as it is exposed to sunlight or artificial warmth (neighboring kitchen ) is heated.

The ceiling h of the cold store is doubled and the space b left between it is filled with air; this space b can also be temporarily connected to the external air through two ducts (not shown). The space c between the double ceiling and the roof is permanently connected to the outside air through several openings i left between the beams.

The cold store is thus insulated all around and above by double layers of air from them the outer ones are constantly moved. There-

this results in the most complete possible isolation secured.

You can also have more than two layers of air in the surrounding walls and under the roof provide if this is in accordance with the climate of the area in which the cold store is set up seems necessary.

Claims (1)

Patent claim:
Method for the most complete insulation possible of a cold store, which bezw in the surrounding walls and in the ceiling. contains several parallel or approximately parallel layers of air under the roof, which are in communication with the outside air through openings, characterized in that the air layers (b) adjacent to the inside of the enclosing walls and the ceiling are usually closed off and only during the cooler season for the purpose of renewing the air Air can temporarily be brought into contact with the outside air through suitable ducts, while the layers of air (c) located near the outside of the enclosing walls and the ceiling are constantly renewed through constantly open ducts. For this purpose ι sheet of drawings.