DE246116C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

In the case of cooking and heating systems, the individual consumption points are often from one Main line fed off, even if the consumption points are different from one another Need heating steam voltages. If now, as is usually the case, manual adjustment must be waived out of operational considerations, then naturally the. Main line always with that, maybe only on one

ίο body with lower consumption required, operated at the highest pressure. The economic disadvantage of this arrangement occurs in particular then in effect when the heating steam of a steam power plant (piston engine of the steam turbine) at the end of the high-pressure section is removed.

In the drawing, the embodiment of an overflow valve known in steam turbines is shown as an example. Through line I of the steam coming from the high-pressure part of the turbine to zuzuströmen through line I ₁ to the low-pressure part and through line I ₂ of the heater. Through valve c, a constant vapor pressure is obtained in lines I and I ₂ by the fact that when there is less withdrawal to line I ₂ and the resulting increase in pressure, valve c is lifted and the excess steam is discharged to line I ₁ . In the illustrated case of this valve is continuously p on the requirement of the heating radiator for the lowest voltage 0 ₀ α regulate by means of the loading spring. At the upper end, a piston b is firmly connected to the overflow valve, which piston can be pressurized from the chamber k by a pressure medium flowing through the line d. Normally, the piston b remains unloaded or only slightly loaded, in that the pressure medium can flow off unhindered through the opening q, q _lt q ₂ and through the line H _1. If the cooker r, which requires steam from a voltage P ₁ , which is greater than the voltage required for the heating element 0, is put into operation, then after opening the valve m, steam pressure is brought to the valve f , this is closed and this produces an increase in the outflow resistance or the pressure over the piston b , which in turn closes the overflow valve c and increases the heating steam pressure from p ₀ to p ₁ . The same game takes place when the cooker Y ₁ is put into operation with a required vapor tension of P2 > Px > Po by closing the valves f and f _v that regulate the flow of pressurized medium, with repercussions between lines g and ^ _{1 being} prevented by check valves h .

The device described above thus ensures that the voltage of the heating steam is automatically set to the highest pressure required at times.

Claims (1)

Patent claim: Device for setting the pressure of the exhaust steam from engines, wel- rather for special purposes, e.g. B. for heating and cooking, is used, characterized in that with the start-up of a hotplate at any distance from the machine, the required steam pressure is automatically set from here that the overflow valve (c) with opening of the associated main valve by controlled organs (f , f _x ) receives variable additional loads on the piston (b) firmly connected to the overflow valve (c). For this purpose ι sheet of drawings.