SU1384801A1 - Method of operation of steam power plant - Google Patents

Abstract

The invention allows to increase the efficiency of the power plant. The mixture of fuel with exhaust gases before combustion is heated in the boiler 1 by the products of combustion of fuel to t-ry conversion. Heat, which is generated when burning converted fuel, is transferred to feed water in evaporative heating surfaces 2, steam in a superheater 3, fuel mixture in a thermochemical reactor 4, and air in an air preheater 6. 1 Il.

Description

iJLr 1-Ilj

(L

L7

h 5 1-1 Gvozdukh 18

00 00

four

00

//

ten

15

20

25

11384801

This invention relates to energy. ke and can be used at fishing power plants (TPP), operating on organic fuel, the steam power cycle of which provides for regenerative heating of feed water.

The aim of the invention is to improve the economy.

The drawing shows a schematic diagram of thermal power plants for the implementation of the proposed method.

The TPP contains a boiler 1, in which evaporator heating surfaces 2 are placed, a superheater 3, a thermochemical reactor 4, a furnace 5, an air heater 6, and the latter is connected to the chimney 7. The superheater 3 of boiler 1 is connected to a steam turbine 8 connected to an electric generator 9 and a condenser 10 , Condenser 10 through pump 11, regenerative heaters 12 and additional regenerative heater 13 are connected with evaporating surfaces 2 of boiler heating 1. Regenerative heaters 12 and additional regenerative heater ogrevatel 13 are connected to a pair of regenerative Extr 14 and 15 of the steam turbine 8. Thermochemical reactor 4 connected k.smesitelyu 16 to which are connected lines 17 and 18 supply of fossil fuels and the leaving gases, respectively.

The method of operation of the TPP is carried out as follows.

Organic fuel through line 17 is fed to mixer 16, in which it is mixed with flue gases (combustion products) taken from chimney 7 via line 18. The fuel in mixer 16 is mixed with flue gases and at the same time heated. The resulting mixture before burning the fuel from the mixer 16 is fed to the thermochemical reactor 4, where it is heated by the products of combustion of the fuel to the conversion temperature. In the fuel mixture

thirty

35

40

45

50

with the escaping gases, the intermediate reactions of the “con” are accompanied by significant heat. From the ter of the reactor 4 I feed the mixture where it is burned in the air, in the air heater it is burned during the burning of the fuel, the waste water evaporates no 2 heating, the heat heater 3, the mixture of the top chemical reactor 4, the air preheater superheater 3 supplies 8. Exhausted to the turbine is condensed into condensation water from the regenerator 14 in the regenerative

12, and then additionally steam from the selection of 1 body regenerative

13. The absence of an economizer in the boiler permits thermochemical conversion, and with heating the nutrient in it is in the additional heater 1

Claims (1)

Formula isob The method of operation of the heat station is by heating it with a part of the boiler's ear, feeding this mix and burning fuel with heat from the steam and feeding its steam from the regenerator and heating the feed water, and so on. due to the fact that they are economical, with with flue gases, the lances of fuel are heated to convert the fumes into the combustion of fuel. Editor Y. Sereda Compiled by V. Gutorov, Tehred A. Kravchuk Proofreader G. Reshetnik 0 five 0 five 0 five 0 five 0 endothermic reactions take place with flue gases. Conversion of fuel is accompanied by significant heat absorption. From the thermochemical reactor 4, the mixture is fed to the furnace 5, where it is burned in the air heated in the air heater 6. The heat generated during the combustion of the converted fuel is transferred to the feed water in the evaporation surfaces 2 of the heating, to the steam in the steam reactor 3 and the air in the air heater. Heat from the combustion products of the fuel in the boiler 1 generates steam, which from the superheater 3 is fed to the turbine 8. The steam that has worked in the turbine 8 is condensed in the condenser and the feed water is heated by steam, which is taken from the regenerative preheaters 14 12, and then further heated with steam from a selection of 15 to additional. regenerative preheater 13. The absence of a water economizer in the boiler 1 makes it possible to transfer 4 conversion products in the thermochemical reactor, and the corresponding feedwater is heated in the additional regenerative heater 13. Invention Formula The method of operation of a thermal power plant is by heating the fuel by mixing it with a part of the boiler exhaust gases, feeding this mixture into the latter and burning the fuel, generating top-combustion products with heat. Leaving the steam and feeding it into the turbine, taking steam from the regenerative sampling of the latter and heating the feed water with this steam, about tl and h. - y u u and i. so that, in order to increase efficiency, the mixture of fuel with exhaust gases is heated before the combustion in the boiler by the combustion products to the conversion temperature.