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Mine ventilation network system experimental device and method

A technology of mine ventilation network and experimental device, which is applied in measurement devices, aerodynamic tests, instruments, etc., can solve the problems of high cost, complex mine ventilation network experimental system manufacturing, and insufficient functions, and achieves relatively high cost performance and test system. Stable and reliable, easy to change effect

Active Publication Date: 2015-11-18
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0003] Technical problem: the purpose of the present invention is to overcome the deficiencies of the prior art, to provide a simplified mine ventilation network system experimental device, to solve the lack of function of the existing ventilation duct experimental device and the manufacturing difficulties of the complex mine ventilation network experimental system , the problem of high cost

Method used

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  • Mine ventilation network system experimental device and method
  • Mine ventilation network system experimental device and method
  • Mine ventilation network system experimental device and method

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Experimental program
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Embodiment 1

[0042] Embodiment 1, as figure 1 , 2 , 3, 4, 7, and 8, the mine ventilation network system experimental device of the present invention mainly consists of two main straight air ducts, a centrifugal fan, an air tunnel, a connecting air duct, a vertical gate and a rectifying grid. The two main straight air passages mentioned above are set on the same horizontal plane, equal in length and parallel, and the cross-sections of the two main straight air passages are semicircular arched or rectangular, or one is rectangular and the other is semicircular arched, such as Figure 9 with Figure 10 shown. One end of the main straight air duct is respectively provided with a rectifying grid, and the end faces of the two main straight air ducts respectively provided with one end of the rectifying grid are provided with a U-shaped connecting air duct connecting the two main straight air ducts together through a flange , There is a test hole on the U-shaped connecting air duct; the distanc...

Embodiment 2

[0046] Embodiment 2, as Figure 5 with Image 6 As shown, it is basically the same as Embodiment 1, and the same part is omitted. The experimental device of the mine ventilation network system is mainly composed of two main straight air ducts, a centrifugal fan, an air tunnel, a connecting air duct, a vertical gate and a rectifying grid. The two main straight air ducts are located on the same horizontal plane. , equal in length and parallel, the cross-sections of the two main straight ducts are semi-circular arched or rectangular, or one is rectangular and the other is semi-circular arched, such as Figure 9 Figure 10 shown. The other end of the main straight air duct is respectively connected to a frequency conversion centrifugal fan through the air duct. The air duct on the inlet side of the frequency conversion centrifugal fan is provided with a flat gate at the entrance of the duct, a louver valve and a bypass anti-air duct in turn. The outlet of the anti-air duct is ...

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Abstract

The invention discloses a mine ventilation network system experimental device and a mine ventilation network system experimental method, which are suitable for mine ventilation experiments. The mine ventilation network system experimental device comprises two main straight air ducts which are of equal length and parallelly arranged on the same horizontal plane, one end of each main straight air duct is connected with a U-shaped connecting air duct through a flow straightener by means of a flange, the other end of each main straight air duct is connected with a variable frequency centrifugal fan through a fan drift, the fan drift on one side of each centrifugal fan is provided with an inlet flat gate, a louver valve and a bypass air-reversing duct in sequence, and an outlet of each air-reversing duct is provided with a vertical gate and a diffuser outlet flat gate connected with the corresponding centrifugal fan; communicating air ducts and a circulation communicating air duct are parallelly connected between the two main straight air ducts, a vertical gate is installed in each air duct, and a variable frequency axial-flow type circulating fan is installed in the middle part of the circulation communicating air duct. The mine ventilation network system experimental device and the mine ventilation network system experimental method can realize experiments on various kinds of ventilation networks and ventilation methods, have the advantages of simple structure, easy operation, high adjustability, multiple experimental functions and high cost performance, and can provide better support for mine ventilation experimental teaching.

Description

technical field [0001] The invention relates to a mine ventilation experiment device and method, in particular to a mine ventilation network system experiment device and method suitable for mine ventilation experiments. Background technique [0002] Mine ventilation system is a complex system composed of mine ventilation network, ventilator and air flow control facilities, among which mine ventilation network is a complex roadway network system connected by open roadway, mining area roadway and mining roadway. Due to its complexity, the current experimental model of the mine ventilation network system is still a demonstrative fixed model. Its manufacturing process is complex, bulky, high in cost, and the functions of ventilation network transformation, adjustment and testing are weak. However, the existing experimental model of tunnel network ventilation on double roads mainly adopts the method of similar simulation experiments to study the influence of different tunnel layo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00
Inventor 陈开岩裴晓东张人伟
Owner CHINA UNIV OF MINING & TECH
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