DE94094C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

CLASS 36: heating systems.

The present invention is directed to low pressure steam heating which with good utilization of the heat, little water consumption and little space requirement a uniform and safe heating of several rooms can be effected from one central point.

The system is shown in the accompanying drawing, as far as it is necessary to understand it, shown.

In a furnace α a spiral tube b is arranged, which BEZW directly from the fire. is washed around by the combustion gases.

A water tank c is connected to this spiral and a regulating valve d and a check valve e are connected between the two. At the top, the spiral opens into the heating line /, to which steam heating elements g of any type and in a number corresponding to the system conditions of the line are connected. A condensate water line h leads back to the container c , the water level of which is always kept at a certain level controlled by the float valve k by a container i fed by the water line.

An open pipe / leads from the top of the container c to the container i, which is open at the top.

The system works as follows:

After the furnace α has been lit with the tap d closed and the spiral has started to heat up, the tap d is opened. As a result, some water flows out of the container c through the check valve e after the heated spiral, evaporates here immediately and creates a pressure in the same which immediately closes the check valve e. The small amount of steam developed in the spiral below is strongly heated as it rises in the spiral and then enters the radiators g. These are equipped with three-way valves m, with the help of which they can be turned off from the heating cable.

The uncondensed steam, together with the condensed water, goes back into the container c . Any excess pressure that may arise in this area is compensated for by the pipe / open on both sides leading to the container i. You can also omit the tube / and simply leave the container c open or lead a tube out of it into the open; but then the vapors which develop in the container and emanate directly from it can then fall annoyingly.

As soon as the pressure in the line decreases as a result of the condensation of the steam, it opens the check valve closes, but closes again when the small one enters the spiral Amount of water evaporates and then presses against the valve.

Since the water in container c is very strongly preheated by the exhaust steam and the condensation water, its evaporation takes place almost instantaneously when it enters the spiral. As a result, the check valve is only opened momentarily and then closed again, so that only a little water can enter and exit the spiral

the same vapor evolved is highly superheated.

The amount of water entering in a given time can be regulated with the help of the tap d.

Since the line is always open at its end, overpressure can never occur in it.

The system works safely with little fuel consumption and allows the stove to be set up at the same height as the radiators. To ensure that the supply takes place quickly , a check valve can also be fitted at n where the heating cable leaves the radiator; It is also advantageous to mount such a check valve in the heating cable itself (for example at o).

Claims (1)

Patent claim: A low-pressure steam heater, in which for the purpose of strong overheating The steam only gets so much water into the bottom of the through a check valve with it A steam generator connected to a water tank occurs than at the moment .Steam generation is sufficient, and further brief feeding only occurs when through the heat consumption in the pipe the pressure in the generator so far below atmospheric pressure sinks that it opens the check valve and another one enters Amount of the feed water that has been strongly preheated through the open line into the container allowed. For this purpose ι sheet of drawings.