Cooling device and cooling method for shield tunnel construction

A shield tunnel and cooling device technology, which is applied in mine/tunnel ventilation, earthwork drilling, mining equipment, etc. It can solve the problems of high temperature and stuffy feeling in tunnels, reduce the ambient temperature, ensure safety, and protect construction personnel safe effect

Inactive Publication Date: 2019-01-15
CHINA RAILWAY NO 2 ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a shield tunnel for the current method of sending natural wind directly to the artificial construction area in the tunnel to cool down the temperature in the tunnel during the construction of the shield tunnel. Construction cooling device, which can improve the working environment of construction workers by cooling and heat-dissipating the wind sent into the tunnel, ensure the safety of construction workers, and can also significantly increase the enthusiasm of workers for production and improve construction production efficiency

Method used

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  • Cooling device and cooling method for shield tunnel construction

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Embodiment 1

[0028] This embodiment provides a cooling device for shield tunnel construction;

[0029] Such as figure 1 , The cooling device for shield tunnel construction in this embodiment includes a refrigeration system and an air cooling system arranged in the tunnel, and a shield circulating water system arranged outside the tunnel; the refrigeration system is connected to the air cooling system for Provide a cold source for the air cooling system; the air cooling system performs cold and heat exchange with the natural wind sent in from the ground to cool the natural wind. The cooled natural wind is sent to the construction area through the shield fan, thereby reducing The temperature of the construction area; the shield circulating water system is connected to the refrigeration system, and is used to dissipate heat and reduce the temperature of the refrigeration system to ensure the normal operation of the refrigeration system.

[0030] The invention provides a cold source for the air co...

Embodiment 2

[0036] This embodiment provides a cooling method for shield tunnel construction;

[0037] Such as figure 1 , The cooling method of shield tunnel construction in this embodiment includes the following steps:

[0038] a. According to the size of the cooling equipment in the refrigeration system and the air cooling system, measure the tunnel space on site, and add a 10m trolley at the tail of the shield machine to connect with the original shield machine trolley;

[0039] b. Install the refrigeration system on the newly added trolley, that is, install the refrigeration host with a size of 1.2×3m on the left aisle plate of the newly added trolley, and use a DN100 water pipe to connect the circulating water to the refrigeration host; and at the outlet of the refrigeration host Install heat preservation water tank 10 and internal circulation water pump 11;

[0040] c. Install an air cooling system between the newly added trolley and the top of the tunnel. The air cooling system is located ...

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Abstract

The invention discloses a cooling device and a cooling method for shield tunnel construction, wherein the cooling device comprises a refrigeration system and an air cooling system which are disposed in a tunnel, and a shield circulating water system disposed outside the tunnel; the refrigeration system is connected with the air cooling system to provide the air cooling system with a cooling source; the air cooling system performs cold and heat exchange with the natural wind sent from the ground for cooling the natural wind; the shield circulating water system is connected with the cooling system to cool the refrigeration system. By adopting the cooling device to cool the natural wind sent into the tunnel, the working environment of the construction workers in the shield tunnel is improved,the safety of the construction personnel is ensured, and the production enthusiasm of the workers is also obviously improved, thereby facilitating improving the construction production efficiency.

Description

Technical field [0001] The invention relates to the field of shield tunnel construction, in particular to a cooling device and method for shield tunnel construction. Background technique [0002] At present, with the rapid progress of urbanization in my country, urban rail transit is developing rapidly, and subway construction is in full swing. The shield machine is a large-scale construction machine in the construction of subway tunnels. The whole machine has high power and many heat sources. During the construction process, a large amount of heat will be generated, resulting in the temperature of the shield construction area as high as 40℃. [0003] At present, the cooling method of domestic shield tunnel construction is mainly to install tunnel fans at the wellhead and install air ducts on the top of the tunnel to send natural air to the shield machine No. 6 car, and then use the shield machine on the shield machine No. 5 car. The fan sends the wind to the main artificial const...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F3/00
CPCE21F3/00
Inventor 刘洪斌陈强林强占凡陈卓
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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