White eliminating device without additional power for continuous row expansion container

Abstract

The invention discloses a white eliminating device without additional power for a continuous row expansion container, and relates to the technical field of hot steam treatment equipment. The white eliminating device without additional power for the continuous row expansion container comprises an exhaust pipeline (1), a condensing pipeline (2) positioned in the exhaust pipeline (1) and a Venturi pipe (5) arranged in the condensing pipeline (2); an air inlet (3) is formed in the upper end of the condensing pipeline (2); an air outlet (4) is formed in the lower end of the condensing pipeline (2);the air outlet (4) penetrates out from the side wall of the lower part of the exhaust pipeline (1); the Venturi pipe (5) communicates with the air outlet (4); the condensing pipeline (2) communicateswith the outside world through the air inlet (3); and the condensing pipe (2) and the Venturi pipe (5) communicate with the outside world. According to the white eliminating device without additionalpower for the continuous row expansion container, the steam exhaust which is continuously exhausted from the continuous row expansion container is recovered and utilized through the air outlet whichpenetrates out from the lower side of the lower part of the exhaust pipeline and the like; and meanwhile, white smoke visual pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of hot steam treatment equipment, in particular to a whitening device without external power for continuous expansion of vessels. Background technique [0002] For thermal power generating units, in order to ensure the safety of the boiler operation and improve the life of the equipment, the quality of the boiler water must be guaranteed, so the boiler water sewage must be installed. Continuous blowdown and periodic blowdown devices are usually designed in subcritical units. The continuous sewage expansion vessel is connected to the continuous sewage outlet of the boiler, and the sewage is adiabatically expanded and separated into secondary steam and waste hot water in the continuous expansion vessel. The secondary steam is discharged into the atmosphere through a special pipeline, and this part of exhaust steam cannot be recovered. [0003] At present, according to preliminary calculations, under normal op...

AI Technical Summary

Problems solved by technology

The continuous sewage expansion vessel is connected to the continuous sewage discharge port of the boiler, and the sewage is adiabatically expanded and separated into secondary steam and waste hot water in the continuous expansion vessel. The secondary steam is discharged into the atmosphere through a special pipeline, and this part of exhaust steam cannot be recovered.

[0003] At present, according to preliminary calculations, under normal operating conditions, the exhaust steam of a 600MW unit can take away 3MW to 5MW of heat, which causes a huge waste of energy; under abnormal operating conditions, such as starting and stopping the boiler , In accident handling conditions, boilers and turbines will discharge hundreds of tons of high-quality working fluid, resulting in a large loss of working fluid and energy

Lack of steam in continuous row expansion containers leads to waste of water resources, "white dragon" phenomenon deteriorates urban landscape and aggravates the formation of smog

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