Tunnel cooling system based on slurry ring flowing
A circulating system and mud technology, applied in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc., can solve the problems of worker takeover, increased work, large amount of external circulating water and high cost, and achieve low cost and water saving. Resources and construction costs, the effect of a simple overall structure
Pending Publication Date: 2019-08-23
CHINA RAILWAY CONSTR HEAVY IND
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Problems solved by technology
[0004] At present, the tunnel cooling system uses external circulating water to take the heat of the tunnel out of the tunnel, and uses external heat dissipation equipment for heat dissipation and cooling. The external circulating water consumes a large amount, and the diameter of the circulating water pipe needs to be greatly increased. The number of workers taking over and work is greatly increased. As the excavation of the tunnel continues, the cost of this cooling method will become higher and higher
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[0027] The existing mud circulation shield machine has a circulating water system and a mud circulation system. The function of the circulating water system is to take away the heat of the equipment and provide water for the equipment during the excavation process. The function of the mud circulation system is only to carry the muck during the excavation process. Therefore, the mud circulation system based on the mud circulation shield machine The present invention provides a tunnel cooling system based on the mud circulation, the purpose is to solve the problem of large amount of external circulation water used in the cooling method in the prior art, difficulty in changing pipes for workers, etc. The problem of rising costs.
[0028] see figure 1 , the existing tunnel air supply mode is all through the tunnel fan 3 and the air supply pipeline to deliver cooling air to the inside of the tunnel, but if only the cooling air is delivered through the tunnel fan, the cooling effect...
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The invention provides a tunnel cooling system based on slurry ring flowing. A cooling circulation system, a water circulation system and a slurry ring flowing system are included. The cooling circulation system is used for providing a cold source for air conveyed into a tunnel. The water circulation system is connected with the cooling circulation system and the slurry ring flowing system. Heat exchange is conducted between the water circulation system and the cooling circulation system and between the water circulation system and the slurry ring flowing system. The water circulation system is used for transmitting heat generated by the cooling circulation system into the slurry ring flowing system, and heat is released through heat exchange between the slurry ring flowing system and thetunnel face and between the slurry ring flowing system and the tunnel outside air. The slurry ring flowing system only used for carrying muck in an original shield tunneling machine is further utilized, finally, the slurry ring flowing system is used for bringing away heat in the tunnel, and the problems that in the prior art, the outer cycle water usage amount is large, the operation difficulty of workers is high, and cost is constantly increased are solved.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel cooling system based on mud circulation. Background technique [0002] At present, the shield machine uses the primary fan to inject air into the tunnel during the tunneling process, and sends the air to the last trolley of the shield machine through the tunnel ventilation pipe, and then uses the secondary fan to relay air to the section of the roadheader, and then the hot air in the tunnel Air circulation is formed by flowing from the tunnel to the opening. Ultra-long-distance tunnel excavation has high requirements for fans. During the construction process, the air leakage of the air duct, the small diameter of the air duct, and the long air supply distance lead to poor cooling effect on the tunnel excavation surface, resulting in poor cooling effect in the tunnel. The internal temperature is high and the human body comfort is poor. [0003] During the tun...
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IPC IPC(8): E21F3/00
CPCE21F3/00
Inventor 刘飞香程永亮刘在政吴立桃张明明文中保杨阳刘佩芝过新华李著松
Owner CHINA RAILWAY CONSTR HEAVY IND