RU1787197C - Industrial heating boiler room - Google Patents

Abstract

Usage: in the power system. SUMMARY OF THE INVENTION: a boiler house comprises a steam boiler with a feed water deaerator and a steam line for consumers, forward and reverse network pipelines, a network heater. The heating system is supplied with chemical cleaning and a high pressure deaerator. The boiler room is equipped with a surface evaporator and heaters sequentially placed in the pipeline of chemically purified water, connected via a heating medium to the deaerator vapor, make-up water, purge water of the evaporator and condensate of the primary vapor of the evaporator. The evaporator is connected to the boiler by-pass line and the boiler feed line , and outlets - to deaerators of make-up and feed water. 1 ill.

Description

FIELD OF THE INVENTION The invention relates to a heat power system and can be used in boiler plants connected to heat supply systems.

Industrial boiler plants are known that comprise steam boilers with a feed water deaerator and a steam line for supplying the obtained steam to consumers, a heat supply system including direct and return network pipelines, and a heating system recharge system including a chemical treatment unit and a make-up vacuum deaerator. The use of superheated network water as a heating agent in a vacuum deaerator allows to reduce the loss of heating steam during deaeration, however, boiler-houses with a lower

reliability due to the poor quality of vacuum deaeration of make-up water.

As a prototype, an industrial heating boiler room was used, comprising steam boilers with a feed water deaerator and a steam line for supplying the obtained steam to consumers, a heat supply system including direct and return network pipelines, a pump and a network heater connected via a heating medium to steam piping of a steam boiler, as well as a system for feeding network and feed water, including a chemical water treatment unit and a deaerator of makeup water of atmospheric pressure, connected through a reduction and cooling unit DCCH is a steam pipe steam boiler.

The disadvantage of the prototype is reduced efficiency due to losses

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the condensate of the heating steam of the atmospheric eaerator of the heating water supply system and the need to compensate for these losses in the nutrient water siphon by chemically purified water, prepared by more false technology than the heating water of the heating network. The throttling of boiler steam in front of the make-up water deaerator leads to a decrease in the boiler room efficiency without obtaining a beneficial effect.

The aim of the invention is to increase the efficiency of a boiler room.

The goal is achieved in that the boiler room is additionally equipped with a surface evaporator with a purge pipe and

sequentially placed in the pipeline connecting the chemical water treatment unit to the makeup water deaerator,

four heat-treated water heaters, the first and third of which are connected through a heating medium to a pair of make-up water deaerator and a purge pipe of the evaporator, and the second through heating medium is connected to a make-up pipe, while the make-up water deaerator is designed as a high-pressure deaerator, and the surface the evaporator is connected by inputs to the heated and heating media respectively to the make-up pipe behind the make-up pump and the steam pipe of the steam boiler and the outputs, respectively on - to the deaerator and make-up water through the fourth heater to the deaerator feedwater. The drawing shows a diagram of a boiler room. The boiler room contains at least one steam boiler 1 with a feed water deaerator 2 and a steam pipe 3 for supplying steam to consumers, a heat supply system including direct 4 and return 5 network pipelines, a pump 6 and a network heater 7, connected via a gray.

medium to the steam line 3. The boiler water supply system and feed water system includes a chemical water treatment unit 8 and a de-aerator 9 of pressurized make-up water, the accumulator tank of which is supplied through the feed pump 1.0. through the make-up pipe 11 it is connected to the return pipe 5. The chemical water treatment unit 8 is connected by pipelines 12 and 13 to the deaerators 9 and 2. The boiler room is equipped with a surface evaporator 14 with a purge pipe 15 and chemically cleaned heaters J 6,17,18 and 19 sequentially placed in the pipe 12 water. The heater 16 in a heating medium is connected to the vapor of the deaerator 9, and the heater 18 is connected to a pipe 15, the heater 17 is turned on in a heating medium

into the pipe 11. The evaporator 14 is connected by inputs to the heated and heating media, respectively, to the pipe 11 behind the pump 10 and the steam pipe 3, and the outputs

respectively, to the deaerator 9 and through the heater 19 to the deaerator 2.

The boiler room works as follows.

. Boiler 1 generates steam, which

steam pipe 3 goes to the technological needs of consumers, as well as a heating agent to deaerator 2, network heater 7 and evaporator 14. The boiler feedwater is deaerated in deaerator 2 and fed to boiler 1 by a feed pump.

Loss of network water in the heating system is compensated by the addition of make-up water. Chemically purified water

to feed the heating system through the pipe 12 passes through the heaters 16, 17, 18 and

19, is deaerated in the deaerator 9 and, with the help of a feed pump 10, is fed through the heater 1.7 to the return mains

pipeline 5. A portion of the deaerated make-up water is supplied as feed water to produce secondary steam in the evaporator 14. This secondary steam serves as a heating agent in the deaerator 9.

The condensate of the primary vapor from the Evaporator 14 is cooled in the heater 19 and enters the deaerator 2. The heating medium in the heater 16 is the vapor of the deaerator 9. The condensate vapor is drained into the collection tank

(not shown), from where it is sent for reuse in a boiler room cycle. The heating medium in the heater 18 is the purge water of the evaporator 14, which after cooling is discharged

to sewers or sent for cleaning and reuse to unit 8.

The use of deaerator make-up water as a deaerator is increased

This pressure improves the quality of deaeration of the make-up water. The inclusion of an evaporator in the boiler room circuit to produce a heating agent of make-up water deaerator makes it possible to increase efficiency

boiler room by eliminating the loss of valuable condensate of primary steam with make-up water. The use of deaerated make-up water as the evaporator feed water makes it possible to increase

Claims (1)

cost-effectiveness by eliminating the cost of a special installation for chemical water treatment, heating and deaeration of the feed water of the evaporator. The stepwise heating of chemically purified water makes it possible to provide a technologically optimal mode of deaeration of the make-up water and to utilize the heat of the streams by which the chemically purified water is heated. SUMMARY OF THE INVENTION An industrial heating boiler house comprising at least one steam boiler with a deaerator of feed water and a steam line for supplying the received steam to consumers, a heat supply system including direct and return network pipelines, a pump and a network heater connected via a heating medium to the steam pipeline steam boiler, as well as a system for feeding mains and feed water, including a chemical water treatment plant and a make-up water deaerator, the storage tank of which is fed through a feed pump ohm of the make-up pipe is connected to the return network pipe, while the chemical water treatment plant is connected via pipelines to the feed and make-up water deaerators, in order to increase the economy, it is additionally equipped with a surface evaporator with a purge pipe and placed in series in the pipe connecting chemical water treatment plant with a deaerator, make-up water, four preheaters and chemically purified water, the first and third of which are heated the second medium are connected 0, respectively, to the vaporization of the make-up water deaerator and the evaporator purge pipe, and the second in the heating medium is included in the make-up pipe, while the make-up water deaerator is made in the form 5 deaerator of high pressure, and the surface evaporator with its inlets through the heated and heating media is connected respectively to the make-up pipe behind the make-up pump and 0 to the steam line of the steam boiler and its outputs, respectively, to the make-up water deaerator and through the fourth heater to the feed water deaerator.