DE1095786B - Heating device for cooker, evaporator and. like - Google Patents

Description

Heating device for cookers, evaporators and the like.

Heating devices for transferring the heat of a liquid or gaseous By means of another means generally have the largest possible heat exchange surfaces in order to achieve the most effective heat transfer possible in a small space.

For this purpose, the heating medium is supplied by pipe coils, pipe bundles, Containers with heavily profiled walls or other lines that have a in relation to their cross-section as large as possible, set up for heat exchange Own surface. There is also already the use of double-walled cylinder tubes became known as heating medium lines. The heating medium flows through the ring cross-section, while the inner and outer jackets of the cylinder tubes face the material to be heated. at the known heating devices of this type have consistently different tubes Length or different diameters or cross-sectional dimensions.

This fact requires a more or less complicated construction the helicopter with correspondingly high manufacturing costs.

This is particularly true in the event that the cylindrical heating medium pipes are arranged concentrically one inside the other, as in the French patent 391 846 is described. The different diameters result from this arrangement the concentric heating medium cylinder and thereby the different flow rates of the heating medium, which leads to uneven heating of the medium to be heated leads.

The aim of the invention is directed to a heating device to create that can be created from simple components, easy to clean leaves and thereby the advantage of large-area and as uniform as possible heat transfer owns.

This becomes more double-walled in a heater with a battery Cylinder tubes through which the heating medium flows, according to the invention achieves that all cylinder tubes of the same diameter are parallel to each other are arranged.

The double-jacket tubes are expediently combined into groups, which are connected in parallel to the heating medium supply line and the condensate drains are switched accordingly.

The heating devices designed in this way have, among other things the advantage that the entire heating battery consists of double-walled tubes of a single Size can be built. Each tube is also after its union with the The rest of the tubes are freely accessible on all sides and can therefore be cleaned easily.

The manufacture of such heating devices is compared to known ones Devices both visibly of the need for tools, the machine effort and the storage is significantly simplified, which also reduces the manufacturing costs are lowered accordingly.

Furthermore, there are also functional advantages because according to of the invention, each cylinder tubes of the same size have the same flow conditions create, whereby only a completely uniform utilization of the available Heat transfer surfaces is achieved. Furthermore, in the embodiment according to the invention the flow resistance of each cylinder tube is the same, so that with an even distribution of the material to be heated, an even utilization is achieved.

The heating device according to the invention is particularly useful for cooking suitable for liquids, because of the high heat output strong bubbles and so that circulation of the liquids can be achieved. This effect is for many Cooking processes are very desirable and contributes significantly to improving the heat transfer at. In addition, the heating steam flows through the relatively narrow ring cross-section the double-walled cylinder tubes down and supports and promotes the Drainage of the resulting condensate. The heated liquid is transferred to the steam bubbles formed on both pipe walls are thrown upwards. Through this this results in high relative speeds and thus particularly good heat exchange.

The following is an embodiment of the device according to Invention shown on the basis of a schematic drawing.

Fig. 1 shows the side view and Fig. 2 shows the plan of such Heater.

Several double-walled cylinder tubes a are of the same diameter arranged parallel to each other. The heating medium is supplied through the nozzle b and distributed to the individual cylinder tubes a through connecting tubes c. After this Flow through and releasing heat becomes the heating medium or condensate Discharged via the nozzle d.

Depending on the prevailing conditions, the tube bundle can be vertical or installed at an angle in the evaporator, distillation or similar apparatus.

It is of course also possible to use several of the systems described above to be installed next to each other or in any combination. It can be done on simple Way, a circulation of the liquid to be heated can be achieved or supported.

PATENT CLAIM: 1. Heating device for cookers, evaporators and the like. with a battery of heating medium flowing through, double-walled cylinder tubes, whose Inside- and outer jackets are facing the material to be heated and their end faces are each in one common plane, characterized in that all cylinder tubes of the same Diameters are arranged parallel to one another.

Claims (1)

2. Heating device according to claim 1, characterized in that double jacket tubes (A) are combined into groups that are parallel to the heating medium supply line (b, c) and the condensate drain (d) are connected. Considered publications: German Patent Specifications No. 17 140, 359 334; Austrian Patent No. 95 904; French patents No. 391 846, 869 665; U.S. Patent No. 1,481,924.