DE240948C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 26 c: GROUP

HEINRICH DINGLER in AUGSBURG.

Insert for carburizing apparatus filled with water.

Patented in the German Empire on March 23, 1909.

The invention relates to a device for carburizing. especially for liquid, gasifying Carbonic acid with automatic circulation of the liquid carburizing agent that adapts to the gas consumption and the resulting circulation Heat exchange of the same with the surrounding air and the contents of one in carburizing devices known insert cylinder, which as a heat storage and temperature compensation device works. The essence of the invention consists in the fact that the insert filled with water or the like is ring-shaped or similar is trained. At the lower end of the inner passage channel of this insert, the gas introduced. This creates an even circulation of the carburizing agent by it rises with the gases on the inner walls of the insert and on the outer walls of the carburizing vessel sinks, where-; through a quick and intensive heat exchange is produced.

One embodiment of such a carburator is shown in the drawing.

The apparatus consists of the high pressure reducing valve A, which is connected to the carbonic acid ash B , the low pressure reducing valve C, the immersion tube D with scattering nozzle E, the closed, here z. B. cylindrical carburizing vessel F, the annular insert cylinder G and the removable refill vessel H.

The liquid carbon dioxide in the transport nose gasifies when the cylinder valve M is open, flows through the high pressure reducing valve A, where it is brought to a lower pressure, and passes through the flexible tube N into the low pressure reducing valve C. Here there is another pressure reduction, after which the carbon dioxide gas enters the carburator through dip tube D. This is filled with the liquid carburizing agent up to a certain height. The exit of the gaseous carbon dioxide is carried out by 'the fine, provided upwardly directed holes sand outlet E in a certain depth below the level of the Karburierflüssigkeit such that the fine gas bubbles in the narrow annular space between the dip tube D and insert cylinder G rise and by the baffle cone R be deflected laterally. The carburized gas collects in the free space above the level of the carburizing liquid and passes through pipe S to the burners. As the gas bubbles rise in the inner annular space, the liquid column located in it is given an upward movement, which causes the entire carburizing liquid to circulate in such a way that it is constantly in the direction indicated by arrows around the suitably filled with water Einsa.tzzylinder G circles, that is, rises in the inner annular space, radially outward at the top, first of the shell downwards and flows back to the annular space at the bottom to rise again. In this way, all parts of the carburizing liquid are used one after the other for the carburizing, and. This avoids the cold effect occurring during the carburizing being limited to only part of the carburizing liquid and causing local cooling that is detrimental to the carburizing. The water content

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the insert cylinder forms a relatively large heat accumulator, and it takes place between this, the carburizing liquid and the outside air through the jacket surfaces a constant and gradual temperature equalization takes place, which eliminates all irregularities in the Prevents carburization. When the! Carburation comes to a standstill, the outside heat penetrates the outer surfaces into the interior of the apparatus,

ίο so that the carburizing liquid and the water content of the heat storage tank gradually return to the outside temperature. The size of the heat content is such that the carburizing liquid cannot cool down too much during operation. If, as a result of the consumption of the carburizing liquid, its level falls below point T, gas enters the refill vessel H and a corresponding amount of liquid runs into the carburator until the liquid level has risen to T again. If the refill vessel H is empty, it can be removed, refilled and put back on after closing the taps U and V and loosening the bayonet catch W.

When flowing through the two pressure regulators A and C of known design, the pressure relief and gasification corresponding cooling of the carbonic acid takes place, so that the gas coming to the carburization is always colder than its surroundings, which prevents from the outset that an excessively carburized gas in the gas line N and reaches the burners. Precipitation of carburizing liquid in the gas line is therefore excluded. With an increasing amount or speed of gas passage, the speed of the liquid circulation also increases. The consequence of this is a more intensive temperature equalization between outside and inside, which prevents the increased supply of cold from having a detrimental effect on the carburization.

Claims (1)

Patent claim: Water-filled insert for carburizing apparatus, characterized in that it is ring-shaped or similar and is provided with the gas inlet at the lower end of the inner passage channel, so that a uniform circulation of the carburizing agent between the outer walls of the carburizing vessel and the walls of the insert and thus a faster one and intensive heat exchange is generated. ^; ■ - · 1 sheet of drawings.