A mine-used multi-stage atomization two-phase flow fine water atomization device

A generation device and two-phase flow technology, applied in mining devices, safety devices, mining equipment, etc., can solve the problems of cumbersomeness, waste, and insignificant cooling effect in closed areas, so as to improve the degree of atomization, avoid waste, and improve water efficiency. The effect of the utilization

Active Publication Date: 2019-03-05
LIAONING TECHNICAL UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

However, before the fire is extinguished and the roadway and other closed spaces are unsealed, continuing to inject nitrogen has no significant cooling effect on the closed area, and the operation of excessive nitrogen injection is cumbersome, resulting in unnecessary waste

Method used

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  • A mine-used multi-stage atomization two-phase flow fine water atomization device
  • A mine-used multi-stage atomization two-phase flow fine water atomization device
  • A mine-used multi-stage atomization two-phase flow fine water atomization device

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0032] Such as figure 1...

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Abstract

A multi-stage atomization two-phase flow fine water atomization device for mining, including a rectifier cylinder and a multi-stage atomization cylinder, two air guide channels and a liquid guide channel are arranged in the rectifier tube, and the rear end of the liquid guide channel There is a multi-hole nozzle, the multi-hole nozzle enters the impact atomization chamber, and the rear end of the impact atomization chamber is provided with a Venturi mixing channel. Part of the gas in the gas channel is sucked into the atomization chamber, and the gas collides with the primary atomization jet to achieve secondary atomization. The mixing channel is re-atomized, and the multi-stage atomization of nitrogen and water is used to realize rapid fire extinguishing and cooling during fire extinguishing. After the fire is extinguished, before the mine is unsealed, the air guide channel is automatically switched to air. Rapid heat exchange and cooling can avoid unnecessary waste of nitrogen, and the degree of atomization is high, economical and practical.

Description

technical field [0001] The invention relates to the technical field of controlling high-temperature areas of coal and rock under mines, in particular to a mine-used multi-stage atomization two-phase flow fine water atomization device. Background technique [0002] Mine fire is one of the main disasters in coal mines, which poses a great threat to the safety of coal mine production. In order to control mine fires, nitrogen injection or carbon dioxide fire prevention and extinguishing technologies are commonly used at home and abroad. Nitrogen and carbon dioxide have good inerting and suffocating effects, which can quickly inhibit the spontaneous combustion of coal and the development of fire. Due to the poor heat absorption and cooling effect of nitrogen, nitrogen and fine water mist can be organically combined during nitrogen injection, making full use of the diffusibility of nitrogen and the heat absorption and cooling properties of fine water mist, and injecting a large am...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F11/00E21F17/00
CPCE21F11/00E21F17/00
Inventor 李宗翔张明乾王雅迪刘宇王天明张慧博刘江
Owner LIAONING TECHNICAL UNIVERSITY
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