Evaporation chamber of vacuum hot water boiler

Abstract

The invention discloses an evaporation chamber of a vacuum hot water boiler, comprising a boiler cavity, wherein the upper half part of the boiler cavity is a heat exchange cavity, the lower half part of the boiler cavity is an evaporation cavity in which a hearth and a smoke tube are arranged, heat exchange tubes are arranged in the heat exchange cavity, and the cross section of the top part of the heat exchange cavity is a circular arc. The evaporation chamber of the vacuum hot water boiler also comprises a rectification barrel which is sheathed outside the heat exchange tubes and comprisesa barrel body, both ends of the barrel body are provided with fixed ends, the upper half part between the two fixed ends of the barrel body is provided with a vapor inflow port, and the bottom of thebarrel body is provided with more than two condensed water outflow channels. By adopting the evaporation chamber of the vacuum hot water boiler, on one hand, the flow rate of water vapor is increasedso that the heat exchange efficiency between the water vapor and the heat exchange tubes is increased; and on the other hand, as the water vapor flows inside through the vapor inflow port, the flow rate of the water vapor among the heat exchange tubes is accelerated, and condensed water flows out from the condensed water outflow channels so that the contact area between the condensed water and the water vapor is reduced, thereby the heat exchange efficiency is further enhanced.

Description

technical field

[0001] The invention relates to a vacuum hot water boiler, in particular to a vacuum sealed evaporation chamber of the vacuum hot water boiler. Background technique

[0002] The boiling point of water is 100°C at a standard atmospheric pressure, and the boiling point of water is less than 100°C when the pressure is lower than one standard atmospheric pressure. For example, at 0.7 standard atmospheric pressure, the boiling point of water is 90°C. The boiling point of water is 70°C, and at 0.1 standard atmospheric pressure, the boiling point of water is 40°C. The vacuum hot water boiler uses this characteristic to form a vacuum cavity after the evaporation chamber is vacuum pumped. At the bottom of the evaporation chamber, there is a furnace and smoke pipes distributed around the furnace. The lower half of the evaporation chamber is filled with heat medium. Water, the heat medium water floods the furnace and the smoke tube, when the high temperature gas genera...

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