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Tunnel construction ventilation method and system

A technology of tunnel construction and ventilation method, which is applied to mine/tunnel ventilation, earthwork drilling, pump control, etc., can solve problems such as small speed adjustment range, poor real-time performance, and inability to adjust ventilation volume in time, to reduce power waste, The effect of meeting ventilation needs

Active Publication Date: 2019-10-25
万泰(苏州)环境科技有限公司
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AI Technical Summary

Problems solved by technology

The three-speed motor switches the number of pole pairs of the motor through the contactor to adjust the speed. Usually there are three set speed points. The motor runs at one of the three speeds, and the speed adjustment range is small.
Usually, the frequency is adjusted manually based on people’s subjective feelings about the internal environment of the tunnel. The real-time performance of the adjustment is poor, and the control of the internal environment of the tunnel is not precise. The dust concentration and harmful gas content depend on the individual’s feelings, and the actual ventilation volume cannot be adjusted in time. It also wastes energy

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  • Tunnel construction ventilation method and system
  • Tunnel construction ventilation method and system
  • Tunnel construction ventilation method and system

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Embodiment Construction

[0047] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. In the present invention, the unit of distance length is unified as meter (m).

[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the presen...

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Abstract

The invention relates to a tunnel construction ventilation method and system. The tunnel construction ventilation system comprises a variable frequency fan, a frequency converter, a controller, a dustsensor, a gas sensor and a network communication device. The dust sensor, gas sensor and the like detect the environment state in the tunnel, and transmit the dust concentration and various gas concentrations to an intelligent control module through the network communication device; the intelligent control module compares the detection values of the sensors with health standard values, and calculates the air output of the fan according to the information of the tunnel length, the air pipe characteristics and the like; and the output frequency of the frequency converter is adjusted by sendingan instruction to the frequency converter, so that the running state of the fan is adjusted.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel construction ventilation method and system. Background technique [0002] During tunnel construction, the dust concentration in the on-site working environment is high, and internal combustion engine vehicles consume a lot of oxygen and emit a lot of exhaust gas, such as carbon dioxide, carbon monoxide, nitrogen oxides, etc. Tunnels are often accompanied by dangerous gases such as methane and hydrogen sulfide. As a common method, ventilation is used to discharge dust and harmful gases and provide sufficient oxygen to the tunnel. [0003] In the existing tunnel construction process, a speed-regulating motor is used to control the size of the air volume supply. Commonly used speed regulation methods include three-speed motors, variable frequency motors, etc. The three-speed motor adjusts the speed by switching the number of pole pairs of the motor through th...

Claims

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Application Information

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IPC IPC(8): E21F1/00E21F1/08F04D27/00
CPCE21F1/003E21F1/08F04D27/004
Inventor 王春洪杨一博綦麟李健
Owner 万泰(苏州)环境科技有限公司
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