DE132303C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

In the control device according to patent 102391, the upper boiler is through a riser pipe connected to an open sensor arranged above the cooking kettle at a corresponding height.

With this facility, experience has shown that when hiring, you have to go through a suitable one Adjust the steam valves to direct the supply of heat so that the water level is raised calmly adjusts in the transducer. This is primarily due to the fact that the water, which is caused by a rapid pressure increase in the steam jacket space caused by excessive heat supply of the kettle through the relatively long and rather narrow tube into the sensor at high speed is driven, after reaching the state of equilibrium between the level of Water column and the vapor tension under the action of the inertia in the Rohr persists in its rapid movement for some time, and so does others Flows of water from the shell space, which then after the living Fall back into the shell space force of the flowing water. This reflux can happen under certain circumstances, namely if a high level of steam consumption has occurred in the meantime and the vapor pressure is reduced accordingly, perform with increased force, but even if this is not the case, it will be under the action of the inertia even after reaching the state of equilibrium between the vapor pressure and the At the height of the water column, water can still flow into the jacket space of the boiling kettle, see above that too much of the snake is covered with water and temporarily too much Steam is generated. This means that the desired vapor tension is exceeded and causes a repetition of the same process, so that after a single disturbance the resulting fluctuations in the water level in the The transducer and the pressure in the shell space usually last longer and less Circumstances can adversely affect the operation.

These circumstances become especially detrimental in the event that the fluctuations cause it of the water, larger quantities of water heated to over 100 ° in the lower and middle part of the riser pipe without being able to cool down sufficiently. As a result the pressure relief, which this superheated water in the upward movement in the When ascending pipe learns, steam can develop from this water, which, in the form of bubbles ascending, the weight of the water column may be so diminished that it is thrown out by the pressure in the steam chamber.

One can avoid this inconvenience by getting it out of the cauldron

Claims (2)

Water that has been pressed out does not pass directly through a narrow riser pipe into the sensor, but rather that it is allowed to flow through an enlargement or chamber near the lowest point of the riser pipe, in which it mixes with the cooler contents of this chamber, its living force through the formation of eddies and friction for the most part loses it and also cools down sufficiently to exclude harmful vapor formation. The extension of the riser pipe can, as can be seen from Fig. Ι, be carried out in the form of a special, arranged below the steam cooker closed chamber b, which is in connection at c with the Aufsenkessel a, and in which the actual riser pipe d expediently close to the ground this chamber opens out. However, even without such a special chamber, one can achieve the desired goal even more perfectly if, as can be seen in Fig Aufsenkessel α connected pipe c open out Iäfst. With this arrangement, not only is the living force of the water flowing through the narrow part of the riser pipe at great speed destroyed for the most part, but the water flowing from this pipe c into the riser pipe also mixes quickly with the entire cooler content of the wide riser pipe, so that in the latter rising vapor bubbles are condensed. In addition, the width of the ascending part of the riser pipe causes a slow movement of the water in it, so that it cannot again gain a considerable living force as it flows through this part of the riser pipe, as in the arrangement according to FIG. As tests have shown, a completely satisfactory effect can also be achieved with the arrangement according to FIG . In the arrangements according to FIGS. 2 and 3, the cooler water contained in the riser pipe d sinks down the pipe walls unhindered by the hot water flow rising approximately in the middle and thus conveys the mixture by circulation. In both arrangements, a special sensor is unnecessary, since the content of the extended riser pipe d can be dimensioned sufficiently to absorb all of the water contained in the boil-up boiler. When setting up the riser pipe as described, one does not need to carefully regulate the effect of the heating surfaces of the cooking appliance by adjusting the valves; rather, there is no splashing of water from the transducer even when the valve is opened quickly. The water squeezed out of the jacket space of the double boiler rises BEZW in the transducer. the enlarged riser pipe mostly calmly and evenly exactly according to the increase of the pressure in the jacket space. Godfather NT-A ν Proverbs: 1. Regulating device of the type protected in patent 102391 for the steam tension in water bath pots, characterized in that the riser pipe is provided with an extension (b) near its lowest point, for the purpose of avoiding the formation of steam in the riser pipes and the ejection of water from the sensor. 2. Control device according to claim 1, wherein the riser pipe beyond the in the Not narrowed again near its lowest point, but rather narrowed is evenly wide in its ascending part and serves as a receiver. 1 sheet of drawings.