A horizontally placed fluoroplastic tubular heat exchanger

Abstract

The invention relates to a fluoroplastic tubular heat exchanger that can be placed horizontally, comprising an inlet water chamber, an outlet water chamber, a front fixed tube sheet, a fluoroplastic straight tube bundle or a U-shaped tube bundle, a positioning orifice plate, a rear fixed tube sheet, Movable tube sheets, long bolts, short bolts, fixed plates, and movable water chambers required for straight fluoroplastic tube bundles or U-shaped metal tubes required for U-shaped tube bundles; the flue gas laterally scours the fluoroplastic tube bundles and generates heat with the medium in the tubes Exchange to realize the condensation or reheating of flue gas; the present invention realizes the regular arrangement of horizontal fluoroplastic hose bundles by adding movable tube plates, long bolts, short bolts, fixed plates, movable water chambers or U-shaped metal pipes, Eliminate the flexibility of the hose, do not need to carry out the vertical hoisting process of the large-scale flue gas heat exchanger, and also avoid the influence of the liquid film formed by the accumulation of the flue gas flowing down the tube wall when the flue gas condenses in the vertical heat exchanger; and this The invention can be used in the flue gas condensation and flue gas reheating devices before and after the desulfurization tower of thermal power plants, or in the energy saving and emission reduction of other industrial processes mainly based on fossil fuel combustion, basically without changing the original flue gas flow, the change range is small, and the cost Reasonable.

Description

technical field [0001] The invention relates to a flue gas heat exchange device, in particular to a horizontally placed fluoroplastic tubular heat exchanger, which can realize regular arrangement of fluoroplastic hose tube bundles and eliminate hose deflection under the horizontally placed condition. The device is mainly used for flue gas condensation and flue gas reheating devices before and after the desulfurization tower of thermal power plants, and can also be used for energy saving and emission reduction in other industrial processes mainly based on fossil fuel combustion. Background technique [0002] The flue gas generated by power plant boilers and other industrial boilers mainly burning fossil fuels has huge waste heat and contains SO 2 , SO 3 , HCl, HF and other corrosive gases, the direct discharge not only causes a large amount of heat loss, but also causes a series of environmental problems such as acid rain. Therefore, boilers in thermal power plants or other...

AI Technical Summary

Problems solved by technology

However, when the flue gas is condensed in the vertically placed fluoroplastic tube heat exchanger, the condensate will flow down along the outer wall of the tube, and it is easy to accumulate to form a liquid film, which affects the heat exchange effect between the flue gas and the medium in the tube.

In addition, when the size of the heat exchanger is large, the difficulty of vertical hoisting of the fluoroplastic tube heat exchanger will also increase greatly

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