Circulating backflow type air intake parameter control device suitable for mine ventilation physical experiment

By using a circulating air intake parameter control device, the efficient recycling of waste heat and humidity in the return air is achieved, solving the problems of high energy consumption and low efficiency in mine ventilation experiments, and realizing a highly realistic and low-energy-consumption mine ventilation physical experiment.

CN122170088AActive Publication Date: 2026-06-09NORTHEASTERN UNIV CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEASTERN UNIV CHINA
Filing Date
2026-05-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing mine ventilation physics experimental devices suffer from high energy consumption and low efficiency, making it difficult to accurately control air intake parameters. Furthermore, the waste heat and humidity of the return air are not effectively utilized, affecting experimental efficiency and cost.

Method used

The device employs a recirculating air intake parameter control system. By recycling the waste heat and moisture of the return air, combined with multi-stage fans and high-efficiency filters, it achieves efficient recycling of the waste heat and moisture of the return air. Furthermore, through the collaboration of a compensating fan and a static pressure buffer chamber, an active pressure compensation and stabilization mechanism is formed to precisely regulate the air source parameters.

Benefits of technology

It significantly reduces the external energy input required for temperature, humidity and flow rate regulation, lowers equipment operating costs, improves experimental efficiency, ensures high simulation accuracy and stability of air source parameters, and shortens air source regulation and balancing time.

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Abstract

A circulating backflow type air inlet parameter control device suitable for mine ventilation physical experiment belongs to the technical field of mine ventilation physical experiment, and comprises a multistage fan, an air source parameter adjusting unit, an air return filter, a PLC control cabinet, a central control console, a distributed sensor network and a static pressure buffer bin; the waste heat and moisture of the backflow air are pretreated in temperature, humidity and flow through the circulating backflow mode, the waste heat and moisture of the backflow air are recycled, the mine ventilation compensation mechanism is additionally arranged, the circulating backflow air after the precise regulation and control of the air source parameters is stably connected to the air inlet well under the constraint condition that the air inlet and outlet of the ventilation mine physical model are kept at atmospheric pressure without increasing the air inlet resistance, compared with the fresh air directly pretreated by the external environment in the traditional mode, the stability of the circulating backflow air can effectively shorten the air source regulation and balance time, can greatly reduce the equipment operation energy consumption and improve the experimental efficiency, and provides key technical support for the mine ventilation physical experiment with high simulation degree and low energy consumption.
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Citation Information

Patent Citations

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    CN110925008A

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    CN121345603A

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    CN102937464A

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    CN102953745A

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    CN105090080A