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A diffusion tower for mine return air heat exchange

A mine return air and diffusion tower technology, which is used in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc. effect of loss

Inactive Publication Date: 2017-10-27
TECH DEV OF SHANXI COAL IMPORT & EXPORT GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A diffusion tower for mine return air heat exchange

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 , including a round pipe section 1, a connecting section 2 and an elbow section 3 connected in sequence with the main fan fan 01, and several deflectors 4.

[0017] The circular pipe section 1 can be linear or gradually expanding, and the length of the circular pipe section 1 is equal to 1 to 2 times the diameter of the circular pipe. The connecting section 2 is a gradually expanding circular-to-square joint, and the circular area of ​​its air inlet is smaller than the rectangular area of ​​its air outlet. , The inner arc 21 of the connecting section 2 is a 90-degree arc-shaped steel plate. The elbow section 3 is a right-angle elbow with an inner straight line and an outer arc. The outer arc 31 of the elbow section 3 is a 90-degree arc-shaped steel plate. The top air outlet can be connected with an external return air heat e...

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Abstract

The invention relates to a diffusion tower for mine return air heat exchange, which is characterized in that it includes a circular pipe section, a connecting section, a curved pipe section and several deflectors connected in sequence; the circular pipe section can be straight or gradually expanding, The elbow section is a right-angle elbow with an inner straight line and an outer arc. The top air outlet of the elbow section can be connected with a mine return air heat exchange device. Several deflectors are uniformly arranged inside the elbow section. The two side walls inside the pipe section are connected. The deflector is composed of a horizontal deflector section and an arc deflector section. The air inlet of the elbow section is set with horizontal deflector sections at equal intervals and increasing in length from the vertical position. An arc diversion section correspondingly connected to the horizontal diversion section is arranged within the range of the arc section between the inner arc of the section and the outer arc of the elbow section. The air flow at the outlet of the invention has good uniformity and stable flow velocity, and provides sufficient and good heat exchange conditions for mine return air 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/00
Inventor 平建明王建学李广俊张欣王晋宇
Owner TECH DEV OF SHANXI COAL IMPORT & EXPORT GROUP
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