High-ground-temperature tunnel ventilation cooling device and advanced cooling method

A technology of tunnel ventilation and cooling device, which is applied in mine/tunnel ventilation, earthwork drilling, mining equipment, etc., can solve the problem of not cooling down, and achieve the effect of reducing sultry feeling, increasing ventilation, and improving working environment.

Inactive Publication Date: 2020-07-31
SOUTHWEST JIAOTONG UNIV +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In related technologies, the cooling measures taken in high ground temperature tunnels are mainly to increase the ventilation volume into the tunnel, which has not achieved a good cooling effect, and the high ground temperature environment still exists

Method used

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  • High-ground-temperature tunnel ventilation cooling device and advanced cooling method
  • High-ground-temperature tunnel ventilation cooling device and advanced cooling method
  • High-ground-temperature tunnel ventilation cooling device and advanced cooling method

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Effect test

Embodiment 1

[0046] In the related technology, the cooling measures taken in the high ground temperature tunnel are only to increase the ventilation in the tunnel to improve the ventilation environment in the tunnel, but in fact it does not have a good cooling effect. The construction environment in the tunnel It is still harsh, the environment is high, and the high ground temperature environment still exists.

[0047] The inventor found that relatively low-temperature air outside the tunnel is blown into the tunnel 400, and heat is exchanged and transferred due to the temperature difference, and the air has become hot air during the propagation process, resulting in limited effects of ventilation and cooling measures.

[0048] Based on this, the inventor provides a high ground temperature tunnel ventilation and cooling device 10, which includes a ventilation component 100 and a first refrigeration component 200, please refer to figure 1 , 2 .

[0049] Among them, the ventilation assembly 100 is ...

Embodiment 2

[0053] The device obtained through the above design can basically satisfy the use of tunnel cooling, but in order to further improve its function, the inventor has further improved the aforementioned high ground temperature tunnel ventilation cooling device 10, which can further improve the cooling effect.

[0054] See Figure 4 In the second embodiment of the invention, a ventilation cooling device 10 for a high ground temperature tunnel is also provided. The high ground temperature tunnel ventilation and cooling device 10 includes the high ground temperature tunnel ventilation and cooling device 10 provided in Embodiment 1, wherein the ventilation assembly 100 further includes a second ventilation pipe 140, and the second ventilation pipe 140 is detachably connected to the first ventilation pipe 120 . In addition, a second refrigeration assembly 300 is also included.

[0055] In the specific installation, the second ventilation pipe 140 is provided with a dovetail groove at one ...

Embodiment 3

[0058] See Image 6 In the third embodiment of the invention, a ventilation cooling device 10 for a high ground temperature tunnel is also provided. The high ground temperature tunnel ventilation and cooling device 10 includes the high ground temperature tunnel ventilation and cooling device 10 provided in Embodiment 1 or 2.

[0059] The inventor discovered during the study of the surrounding rock of the tunnel 400 that before the excavation of the tunnel 400, the surrounding rock was in a state of thermal equilibrium. During the excavation of the tunnel 400, a tunnel face was formed. The ventilation in the tunnel 400 resulted in airflow. The original thermal balance is out of balance, and a new thermal balance needs to be re-established. The surrounding rock near the tunnel face is continuously cooled. This kind of rock mass cooling extends from the tunnel face to the deep part of the rock mass until a new thermal balance is established. At a certain distance from the tunnel fa...

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Abstract

The invention provides a high-ground-temperature tunnel ventilation cooling device and an advanced cooling method, and belongs to the technical field of tunnel construction. The high-ground-temperature tunnel ventilation cooling device comprises a ventilation assembly and a first refrigeration assembly. When the high-ground-temperature tunnel ventilation cooling device is used, a fan introduces relatively low-temperature air outside a tunnel into a first ventilation pipe and discharges the relatively low-temperature air into the tunnel, so that the ventilation quantity in the tunnel is increased, the stuffiness feeling of constructors is reduced, and the working environment is improved. A plurality of first refrigeration bags are arranged on the surface of a connecting sleeve, and the connecting sleeve is arranged on the outer wall of the first ventilation pipe in a sleeving mode. The refrigeration bags become solid in a low-temperature environment, the refrigeration bags are arrangedon the outer wall of the first ventilation pipe in a sleeving mode, the air entering the first ventilation pipe can be cooled, the situation that the air enters the tunnel to be spread to form hot aircan be avoided to a certain extent, and the cooling effect is improved.

Description

Technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a high ground temperature tunnel ventilation and cooling device and an advanced cooling method. Background technique [0002] A large number of high-altitude, long-distance tunnels and complex geological conditions have appeared in China. Among them, the deterioration of the construction environment caused by high ground temperature, the higher the temperature of the working surface, the serious loss of water and salt in the body of the construction personnel in the high temperature and high temperature work environment, if not timely supplemented, the construction personnel are prone to heat collapse and reduce work efficiency. In addition, the high ground temperature environment causes insufficient pullout resistance of the anchor rod, and even causes the anchor rod to fail and cannot be anchored. The high ground temperature environment will also reduce the safety of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/00E21F3/00
CPCE21F1/006E21F3/00
Inventor 刘大刚王勇刘金松王明年胡云鹏王奇灵黄麟尧郑宗溪胖涛曹彧张维
Owner SOUTHWEST JIAOTONG UNIV
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