Diffusion tower for mine air return and heat exchange

Abstract

The invention relates to a diffusion tower for mine air return and heat exchange. The diffusion tower is characterized by comprising a circular pipe section, a connecting section, a bent pipe section and a plurality of guide plates which are sequentially connected, wherein the circular pipe section can be liner type or divergent type; the bent pipe section is a perpendicular type bent pipe which adopts a straight line inside and an arc line outside; the top air outlet part of the bent pipe section can be externally connected with a mine air return and heat exchange device; a plurality of the guide plates are uniformly arranged inside the bent pipe section; the guide plates are connected with the two side walls inside the bent pipe section; the guide plates comprise horizontal guide sections and arc-shaped guide sections; the horizontal guide sections with equal intervals and sequentially enlarged length are arranged from the vertical position of the air inlet part of the bent pipe section; the arc-shaped guide sections correspondingly connected with the horizontal guide sections are arranged in the arc-shaped section range between the inner arc line of the connecting section and the outer arc line of the bent pipe section. According to the diffusion tower, the outlet part airflow is good in uniformity and stable in flow velocity, and a full and good heat exchange condition is provided for mine air return and heat exchange.

Description

technical field [0001] The invention relates to a modified diffusion tower structure, in particular to a diffusion tower for extracting mine return air heat / cold energy. Background technique [0002] Mine ventilation is the most basic link in mine production. When the ground air flow is sent into the air intake shaft, it supplies fresh air and absorbs heat dissipation from surrounding rocks, mechanical equipment, personnel, etc. Therefore, the mine return air has a large air volume and relatively high temperature. High, the low-temperature heat energy resources in the mine return air are rich, and the heat or cold energy in the mine return air can be recycled to meet the needs of coal mine buildings for heating in winter, cooling in summer, shaft antifreeze and hot water for bathing. It is a substitute for coal-fired boilers in coal mines, realizing One of the technical means of energy saving and emission reduction. [0003] The wind speed at the outlet of the main fan of t...

AI Technical Summary

Problems solved by technology

However, in the currently commonly used inclined diffusion tower and streamlined diffusion tower, a large eddy area will appear in the corner area of ​​the air outlet of the inclined diffusion tower, and the vortex phenomenon of the streamlined diffusion tower will be reduced, but the water droplets sprayed by the spray return air heat exchanger above it will The coverage is reduced, which affects the return air-water heat and humidity exchange effect

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