Blowing, dehumidifying and heating steam boiler system

Abstract

The invention relates to a blowing, dehumidifying and heating steam boiler system; after passing through an air filter, natural air enters a surface cooler and a demister, then is fed into an air heater and an air pre-heater in turn through an air blower, and finally enters a boiler; low-pressure steam is connected to a steam inlet of a lithium bromide refrigerating machine; a steam condensate outlet of the lithium bromide refrigerating machine is connected to a steam condensate recovering system; a chilled water outlet of the lithium bromide refrigerating machine is connected with the surface cooler and a cooler water inlet of the demister; the surface cooler and a cooler water outlet of the demister are connected with a chilled water inlet of the lithium bromide refrigerating machine; acooled water outlet of the lithium bromide refrigerating machine is connected with a water inlet of the air heater; a water outlet of the air heater is connected with an upper water pipe of a coolingtower; and a lower water pipe of the cooling tower is connected with a cooled water inlet of the lithium bromide refrigerating machine. The system disclosed by the invention is capable of reducing the electricity consumption of the air blower, reducing heat loss of emission smoke, utilizing low-pressure steam and increasing the heat efficiency.

Description

technical field [0001] The invention relates to a thermal system, in particular to a blast dehumidification heating steam boiler system. Background technique [0002] Natural air is composed of dry air and water vapor, that is, natural air contains moisture, especially in seasons with high humidity, the moisture content can reach 20g / Nm 3 Above, water expands more than 1600 times in gaseous state than in liquid state, so the moisture in the natural air occupies a certain volume. When the relative humidity of the air reaches 100%, the moisture in the air is saturated, and the air temperature at this time is called the dew point temperature. When the air temperature drops to the dew point temperature, the water vapor in the air will condense into dew. When the fuel is burned in the boiler, it needs to consume a lot of oxygen, and the blower blows air into the boiler. When the blower sends oxygen, it also sends water vapor that does not participate in the combustion into the b...

AI Technical Summary

Problems solved by technology

When the fuel is burned in the boiler, it needs to consume a lot of oxygen, and the blower blows air into the boiler. When the blower sends oxygen, it also sends water vapor that does not participate in the combustion into the boiler. The water vapor absorbs heat and becomes high-temperature flue gas. In addition, due to the existence of water vapor, the blower needs to send more air to meet the needs of combustion, which not only increases the power consumption, but also increases the heat loss of exhaust smoke

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