Low-resistance liquid-film gas treatment device

Abstract

The invention discloses a low-resistance liquid-film gas treatment device. The device comprises a shell, wherein a gas outlet is formed in the top of the shell, a gas inlet is formed in the side wallof the bottom of the shell, a sewage disposal port and a sewage discharge pipe are arranged on the side wall of the bottom of the shell, a dosing port is formed in the position, not far away from thesewage disposal port, of the side wall of the shell, and a packing layer is arranged at the middle portion of the shell. According to the device, a plurality of stages of packing layers can be designed according to actual requirements, each packing layer is composed of net-shaped liquid film balls of unique structures, and treatment liquid is sprayed on the net-shaped liquid film balls to form a uniform spherical net-shaped liquid film. Liquid of the device is in direct contact with treated gas, thermal resistance of materials exists, and small-temperature-difference direct heat exchange between the liquid and the gas can be achieved; thermal resistance of dirt and a dividing wall brought in by a heat transfer surface do not exist, and high-efficiency heat transfer is facilitated; gas andliquid phases are in direct contact, a metal heat transfer surface is omitted, efficiency is improved, and equipment is simplified; and gas and liquid are in direct contact, so the outlet temperatureof treated gas is approximate to the temperature of working medium liquid, and flue gas can be cooled to a very low temperature.

Description

technical field [0001] The invention belongs to the technical field of flue gas heat recovery and purification, and in particular relates to a low-resistance liquid film gas processing device. Background technique [0002] In recent years, countries around the world have paid more and more attention to environmental pollution, especially the prevention and control of air pollution, reducing energy consumption, improving resource utilization, alleviating energy shortages, reducing greenhouse gas emissions, and controlling environmental pollution. All countries are committed to To build a low-carbon and environmentally friendly economic development model. More industrial energy-saving equipment and solutions have been put into the market, and for industries with large installed capacity of boilers such as glass, metallurgy, building materials, power generation, and heating, recovery of waste heat from boiler flue gas has attracted widespread attention. [0003] Exhaust heat l...

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Problems solved by technology

[0007] One aspect of the present disclosure provides a high-efficiency heat transfer, low-resistance liquid film gas processing device, which solves the problems encountered during the operation of existing flue gas heat exchange devices

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