DE363079C - Device for regulating the temperature of superheated steam - Google Patents

Description

Device for regulating the temperature of superheated steam. object of the invention is an apparatus for controlling the temperature of superheated steam in the form of a tube cooler, in which steam is generated from the cooling water and the latter is supplied to the steam to be cooled.

There are now devices for controlling the temperature of overheated Steam by cooling and, if necessary, by addition. from saturated steam to superheated Steam known, in which a arranged in the cooling container, from the superheated steam flowed through pipe is immersed as required in the cooling liquid, while the steam generated in the cooler is now cooled but still superheated Steam is added.

In contrast, the essence of our invention is that with a Device for regulating the temperature of superheated steam in the form. a tube cooler, in which steam is generated from the cooling water and the latter is supplied to the steam to be cooled is, the generated saturated steam is dried and heated in the cooler and only then the superheated steam is supplied before entering the cooler. This becomes a lot less cooling water than in the known facilities in which the Steam is always introduced at the highest temperature and, as a result, large amounts of cooling water are consumed, while in the cooler according to the invention the steam temperature is already reduced before entering the cooler.

In known other temperature regulators, the heating surface is similar Changed way as with the subject of the invention, but the cold room is from the steam room closed so that various pressures are contained in them. With pressure fluctuations the pipe rolling points can become leaky, and cooling water can enter the Main steam line.

But the pressure is always on both sides as with the above device balanced, no leaks will occur and operation will continue the strongest fluctuations without danger.

The device is installed in the main steam line to the turbine. It represents a tube cooler in which the cooling water is made to evaporate and the steam generated in the main steam line before entering the temperature controller is fed. The evaporation space is open in order to dissipate the generated steam a pipe connected to the main steam line in front of the cooler so that on both sides the cooling tubes always have the same pressure. The regulation of the steam temperature is then achieved in such a way that the cooling water is fed in at any desired height and the cooling heating surface changes accordingly.

The invention is shown in the drawing. Fig. I shows the overall arrangement in a boiler system, while Fig. 2 shows the tubular cooler in section.

The temperature controller d is installed in the main steam line to the turbine, so that the entire amount of steam must flow through the pipe system g of the regulator d. This pipe system is surrounded by a water space, in which the water level is arbitrary can be set high.

Due to the large temperature difference between superheated steam and fed-in water, the latter is quickly brought to boiling temperature and evaporated, whereupon the steam passes through an amply sized steam line c of the main steam line a is supplied. In order to avoid any water being carried away, there is a special one Arranged drying device h.

So that the steam temperature controller is not caused by a failure of the supply is flooded, safety devices are built in, if exceeded of the highest permissible water level.

Return pipes are used to drain the water from the drying device h e provided outside the Wasserrauxries.

Claims (1)

PATENT CLAIM: Device for regulating. the temperature of overheated Steam in the form of a tube cooler, in which steam is generated from the cooling water and the latter is supplied to the steam to be cooled, characterized in that the generated saturated steam in. Cooler is dried and overheated and only then the highly overheated Steam is supplied before entering the cooler.