SU1289821A1 - Vacuum deaerator of steam-generating unit - Google Patents

Abstract

The invention relates to a power system and m. used in steam generating installations of thermal power plants and industrial heating boilers. The invention allows to increase the efficiency and simplify the installation scheme. From the spreader 13, part of the non-evaporated purge water through line 12 through pipe 8 enters the evaporative compartment 3. When entering the last one, the water boils. Without evaporating the liquid, having a high salinity and a low temperature, through pipe 9 through line 14 is discharged into the drains. The steam formed in the compartment 3 passes through the cracks of the bubbling sheet into the deaeration compartment and treats the source water. 1 il. i (Is9 00 00 1 hd

Description

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The invention relates to heat and power engineering and industrial heat engineering, namely to thermal deaerators, and can be used in steam generating installations of thermal power plants and industrial heating boilers.

The purpose of the invention is to increase efficiency and simplify the installation scheme.

The drawing shows a vacuum deaerator steam generating installation, a general view.

Vacuum deaerator 1 contains deaeration 2 and evaporation 3 compartments separated from each other by a continuous partition 4. With deaeration compartment 2, nozzles 5, 6 and 7 are connected, respectively, for supplying source water, draining deaerated water and vapors, and with evaporating compartment 3 nozzles 8 and 9 for supplying and discharging the heating coolant. In the evaporative compartment 3, there are guide louvers 10 and a wave suppressor grill 11. A connecting pipe-8 for supplying a heating coolant is connected to a line 12 for discharging blow-out water from a steam generator 13, which is continuously blown out of a steam generator (not shown), and a spout 9 for drainage pipe 14 13, a pipeline 15 for purging water from the steam generator and a pipeline 16 for discharging steam are connected.

Deaerator works as follows

in a way.

The purge water from the steam generator of the torus through the pipeline 15 enters the continuous blower 13, whence the non-evaporated part with a temperature of 100 ° C through line 12 through the nozzle 8 enters the evaporative compartment 3 of the vacuum deaerator 1. When entering the evaporative

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compartment 3 boils water, blinds 10 promote separation of water and steam, surge suppressive grill 1 prevents moisture from being carried with steam into deaeratoric compartment 2 of deaerator 1. Having not evaporated in compartment 3, the liquid having a high salinity and low temperature is unsuitable for further use and through pipe 9 through line 14 is diverted to the drains. The vapor formed in the evaporative compartment 3 passes through the slots of the bubbling sheet into the deaeration compartment and exposes the source water to an appropriate treatment. The water deaerated in compartment 2 is discharged through nozzle 6.

The use of heat from the purge water to preheat and treat the water entering the deaerator increases the efficiency of the steam generating plant and simplifies its design, since it eliminates the need for additional heat exchangers to prepare the heating medium.

Claims (1)

Invention Formula A vacuum deaerator for a steam generating plant with a continuous blowout expander, equipped with a discharge pipe and a drain pipe containing evaporation and deaeration compartments separated from each other by a solid partition, and communicated with the evaporative compartment of the inlet and outlet of the heating medium. the fact that, in order to increase the efficiency and simplify the installation scheme, the heating coolant inlet pipe is connected to the purge water drain line, and the outlet pipe from the pipes wire drainages.