Self-adaptive resistance fluoroplastic condensation device and design method

Abstract

The invention provides a condensation device of self-adaptive resistance fluoroplastic. The condensation device comprises a heat exchange pipe elbow section and two heat exchange pipe straight pipe sections which are sequentially arranged in a flue gas flow direction of a variable cross section flue, wherein the heat exchange pipe straight pipe sections comprise heat exchange pipe bundles in an array mode; the heat exchange pipe bundles are arranged in a row direction along the flue gas flow direction of the variable cross section flue, the heat exchange pipe bundles are arranged in the direction perpendicular to the flue gas flow direction of the variable cross section flue on the horizontal plane, and the distance between every two adjacent heat exchange pipe bundles in the straight pipesection of the heat exchange pipe is equal to that of the adjacent heat exchange pipe bundles in the same row in the heat exchange pipe straight pipe sections; and the distance among the heat exchange pipe bundles in the same row direction of the straight pipe section of the heat exchange pipe is the same; the distance of the heat exchange pipe bundles of the heat exchange pipe straight pipe section in the column direction is sequentially reduced from the two sides to the middle, the heat exchange pipe elbow section comprises a heat exchange pipe elbow used in cooperation with the heat exchange pipe bundles; and the heat exchange pipe elbow is arc-shaped, and the two ends of the heat exchange pipe elbow respectively communicate with the heat exchange pipe bundles of the two heat exchangepipe straight pipe sections.

Description

technical field [0001] The patent of the invention belongs to the field of flow equalization of flue gas heat exchangers in the thermal power generation industry, and specifically relates to an adaptive resistance fluoroplastic condensation device and a design method. Background technique [0002] In response to the serious problem of regional air pollution, my country has intensified the comprehensive improvement of the atmospheric environment, strengthened the control of air pollutants in key industries such as coal-fired power plants and coal-fired industrial boilers, and included white smoke from chimneys Governance agenda. In the latter part of the combustion process in industries such as electric power, petrochemical industry, and waste incineration, after the flue gas is treated by a wet desulfurization device, the humidity of the flue gas reaches a saturated state, and the temperature of the flue gas is reduced to around 50°C. The chimney is directly discharged into ...

AI Technical Summary

Problems solved by technology

[0004] In order to achieve a better heat exchange effect, it is necessary to prolong the time for the flue gas to pass through the condensing device, and the cross-sectional area of ​​the flue needs to be increased accordingly. The variable cross-section of the flue will lead to uneven distribution of the flue gas and affect the heat transfer effect of the condensing device.

[0005] At present, most of the solutions to this problem are based on the principle of physical rectification. By installing different forms of resistance parts in the flue, the flue gas flow velocity at different positions of the flue section is close. This requires the modification of the original flue, and the engineering quantity Large and affect the normal production of enterprises

Images