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Seamless energy-saving switching system of main mine fan

A technology for switching systems and fans, applied in mine/tunnel ventilation, mining equipment, mechanical equipment, etc., can solve the problems of unstable fan operation, single control system for fan operation performance, and inability to adjust air volume, so as to reduce gas accumulation. Dangerous effect of explosion

Inactive Publication Date: 2011-08-17
朱成刚
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AI Technical Summary

Problems solved by technology

[0004] The electrical part adopts the conventional control method, and the operation of starting and stopping is realized manually. Once the fan fails, there is no corresponding emergency measure. When the demand for air volume changes, the air volume cannot be adjusted, resulting in waste of electricity and unstable operation of the fan

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  • Seamless energy-saving switching system of main mine fan
  • Seamless energy-saving switching system of main mine fan
  • Seamless energy-saving switching system of main mine fan

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Embodiment Construction

[0026] see figure 1 , the invention discloses a mine main fan seamless energy-saving switching system. As shown in the figure: it includes a first fan channel and a second fan channel with one end respectively connected with the shaft shaft, and the other ends of the first fan channel and the second fan channel are provided by two motors 101, 102, 201 respectively. The first fan 1 and the second fan 2 controlled by 202; two electric disc valves 11, 12, 21, 22 are respectively arranged in the first fan channel and the second fan channel; the motor, the fan and the electric disc valve are all Controlled by PLC.

[0027] The operation process of the system controlled by PLC is as follows:

[0028] A fan start-up process: first open the butterfly valves 11, 12, 21, 22 at the front ends of the fans 1 and 2, and then start the motors 101, 102, 201, 202 of the fans after they are fully opened;

[0029] B fan closing process: stop the two motors 101, 102, 201, 202 of the fan, and t...

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Abstract

The invention relates to a control system of a main mine fan, in particular to a seamless energy-saving switching system of a main mine fan. The seamless energy-saving switching system comprises a first fan passage and a second fan passage, one end of the first fan passage and one end of the second fan passage are respectively communicated with a vertical shaft, and the other end of the first fanpassage and one other end of the second fan passage are respectively provided with a first fan and a second fan which are respectively controlled by two motors; the first fan passage and the second fan passage are internally provided with two electric disc valves; and the motors, the fans and the electric disc valves are controlled by PLC. When the seamless energy-saving switching system is used,operation of an operating fan changes to operation of a standby fan, air flow in the mine is basically unchanged so that general 2-4min suspension for replacing the fan for operation is avoided, which is very significant to high gassy mines.

Description

technical field [0001] The invention relates to a control system for a mine main fan, in particular to a seamless energy-saving switching system for a mine main fan. Background technique [0002] The main fan is the main equipment of mines, especially coal mining enterprises. It completes the function of mine ventilation and involves the safety of underground workers. It is still a device with high power and consumes a lot of power. [0003] Generally, the conventional control methods adopted by domestic main fans are as follows: [0004] The electrical part adopts the conventional control method, and the start-stop operation is realized manually. Once the fan fails, there is no corresponding emergency measure. When the demand for air volume changes, the air volume cannot be adjusted, resulting in waste of electricity and unstable operation of the fan. The mining industry has relatively high requirements for underground air supply volume, so it also has high requirements ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06E21F1/00
Inventor 李国庆朱成刚
Owner 朱成刚
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