SU106105A1 - Method for reducing temperature of heating steam going to regenerative water heaters - Google Patents

Description

The invention is directed to the further improvement of the methods of non-lowering the temperature of the Greyns, and its steam, which is fed into the regenerative water heaters of the tenlow power plants, with the aim of new economics of ethnanthias.

Essentially, this knockout of temperature is achieved by the fact that between the collection points of this pair at the turbine and the regenerative themediamees, there are established the shareable exchangers, in which the nerizhee of the temperature of the nara is installed. These stoves have the disadvantage that when the heater is overheated, it must have large dimensions, since it provides a couple of all the heat necessary for its non-heating.

According to the invention, this disadvantage is eliminated by the fact that tenlo taken from greyughts steam in the tenloobmenniki, is used for intermediate superheating of the nara than () i; i6apiiTbi of the intermediate superheater, spacinginog (x 11,1P11meer, k; 3 boiler flow).

The installation (Fig. 1 and 2) consists of a steam boiler / with a heater 2, a steam turbine with high cylinders 3, medium 4 and low pressure 5, a condenser 6, a condensate pump 7, an intermediate heater 8 and a regenerator TiHiHbix tenlobmeniuki 9, 10, II, 12, 13 and 14. Steam from the high-pressure cylinder, preferably nronun1, eny through the heat exchanger 15, enters the intermediate gas n; 1 superheater 8.

In the Ike / 5 temperature range, the steam is heated preheated by superheated passwords taken from the medium pressure cylinder to the regenerative heat exchanger 12 and 13. As a result, on the one hand, the temperature of the heating steam goes down, and on the other hand, the heat taken from the additional heat exchanger passes to the steam, and the steam is lost in the additional heat exchanger. (a daily steam heater, all the while, of which the latter can be removed with a smart heating surface, which leads to a decrease in gaberggg.

 FIG. 1 this additional heat exchanger is installed between the cylinders and the drum of 3 N 4 turbines, transferring heat to the steam, directing it to an intermediate compressor unit.

FIG. 2, the second variant provides for the transfer of heat to the stream coming from the medium pressure nilindra to the cylinder of the inferior pressure, which also reduces the dimensions of the final superheater.

Subject invention

Siosob reducing temneratury rpeioHJ, ero vapor coming in regeperativpye vodoiodogrevateli with nrimenepiem tenloobmepiikov established between the points of extraction steam from the turbine and water chambers preheater mi, characterized in that, to reduce the size of the intermediate superheater given off in tenloobmennikah heat ieno; n: shouted for and intermediate. overheating of the steam turbine.