Mixed vapour condensation intensify heat transmission method

Abstract

There is a sort of heat transfer method of condensation aggrandizement type which mixes the steam, and it belongs to the area of aggrandizement heat transfer and energy-saving technique. It relates concretely to the modified character or the dispose course, and it applies to the set which has incondensable gas or the condensation-heat exchange set which mixes the steam in order to realize the aggrandizement of the condensation-heat exchange character. By changing the flowing form of the condensation liquid and the reciprocity between the dynamic and the boundary layer of the gas phase it makes the condensate which is in the groovy reliable membranous flow method to shell in the form of big dripping, the dripping can slide in the surface or shell along the boundary layer of the gas phase, it decreases the thermal resistance of the film of the condensate, at the same time for the intrusive action of the shell of the dripping, it is propitious to decrease the boundary layer of the heat transfer and the matter transfer, and it consolidates the whole heat transfer character of condensation aggrandizement type which mixes the steam. This invention can be used in the condenser which mixes the industrial material or has the incondensable gas. Its effect and benefit is that: in this instance that not using any additive power consumption, it only use the autologous gravitational effect of the condensate, and it makes the mixed steam heat transfer character of the mixed steam to obtain obvious melioration.

Description

technical field [0001] The invention belongs to the technical field of heat transfer enhancement and energy saving, and in particular relates to a preparation method and application of a heat transfer enhancement surface. Specifically, the heat exchange surface is treated and applied to condensation heat exchange equipment containing non-condensable gas or mixed steam. Background technique [0002] The existence of a small amount of noncondensable gas will have a great influence on the condensation heat transfer process. Similarly, compared with the condensation of a single-component working fluid, the condensation heat transfer characteristics of a non-azeotropic working fluid will be significantly reduced. However, the condensation heat and mass transfer process with noncondensable gas or mixed vapor has a wide application background in industrial production such as petroleum, chemical industry, refrigeration, and electric power. Such as absorption of corrosive component...

AI Technical Summary

Problems solved by technology

There are many ways to strengthen the condensation process of mixed steam in practical applications, such as increasing the flow rate of mixed steam; installing baffles and spoilers; The method enables the transfer to be enhanced while the power consumption is also increased accordingly

Images