DE590586C - Process for the alternate heating and cooling of drinking and drying vessels for cables with water in the circuit - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
JANUARY 10, 1934

REICH PATENT OFFICE

PATENT LETTERING

CLASS 21c GROUP 7

Julius Pintsch Akt.-Ges. in Berlin

for cables with water in the circuit

Patented in the German Empire on January 15, 1930

When drying and soaking cables, it is advisable to proceed as follows: that the cables are placed in double-walled, heatable and tightly sealed vessels so that the cables are initially heated for the purpose of removing the moisture and the room in which the cables are housed can be evacuated. Thereon the appropriate impregnating agent is introduced into the »cable watering room, appropriate initially with an increase in temperature so that the impregnating agent enters the insulation more easily can penetrate. The impregnating agent is then allowed to cool, whereupon the cable is turned off can be removed from the container. An essential shortening of the drinking work can can be achieved by the temperature as quickly as possible after the soaking is complete is decreased, but it should be noted that the temperature decrease is not may take place so quickly that undesirable stresses within the vessel occur as a result of too rapid cooling. As a heating and cooling medium is best suited Water, which has to be practically freed from scale in order to avoid the harmful effects of corrosion to avoid ^

According to the invention, the working method for these drinking vessels is designed in such a way that that the same water is used for both heating and cooling when heating the drinking vessel, this water is supplied to a suitable heating device is supplied, while the same water .einer with subsequent cooling corresponding cooling device is supplied. This is initially a considerable Saving of water and an avoidance of the corrosive effect achieved. Through this, that the initially hot water 'is fed to a cooling device, it cools ■ here so slowly that an undesirable stress on the vessel walls of the drinking vessel not, can occur. Nevertheless, this artificial cooling reduces the cooling time considerably reduced. The temperature regulation at the transition from hot water to Cold water can easily be made by adjusting the valve.

Another advantage that can be achieved with the subject matter of the invention there is darm that in the way of the hot and cooling water between the soaking vessel and the cooling device still another or several drinking vessels can be switched on, which means that a large amount of water can be used Exploitation of the warmth of the hot water is made possible.

At the same time, however, there is also a gradual cooling of the further one or more Drinking vessels to reduce the strong temperature difference.

In the drawing is an example of the basic embodiment of a device shown for carrying out the method according to the invention. The hot.

water, which is supplied with the α designated Tränkgefäß from the hot water circulation system HW, undergoes its transformation to the coolant after the end of impregnation by making the shut-off organs χ and ν closed, and opened ti ζ. As a result, a new hot water supply is switched off, while the water in the coils or the jacket of the drinking vessel ä is passed through the cooling coils of the heat exchanger b . Cold well water flows through the heat exchanger δ around the cooling coils and thus cools the water in them. By means of the pump C the water is kept in circulation. As a result of the circulating water, the heat from the soaking vessel a, the impregnating agent and the impregnated material is gradually fed to the heat exchanger b and given off in this to the raw water. The Windkesselelfi switched on behind the pump c? serves to equalize the pressure for the changes in the space filled by the water caused by the temperature differences. The same pressure must prevail in both the hot and cold water circuit devices when the shut-off devices *, y, ti and ζ are switched.

The method allows to use the same water for heating and cooling and switches on the possibility of scale depositing in the hot water circulation device, the end.

Claims (1)

Claim: Process for alternating heating and cooling of soaking and drying vessels for cables with water in the circuit, characterized in that the same Water passes through the heating device when heating and the cooling device after the end of heating with a gradual change in temperature in the transition from one process to that others. For this purpose ι sheet of drawings