A circulating cold water cooling system for high ground temperature tunnel construction

By designing a circulating cold water cooling system for high ground temperature tunnel construction, and using the mixed cooling of cold water and hot water, the problems of high cost, low efficiency and poor high temperature diffusion control in the existing technology are solved, and the goals of low cost, high efficiency cooling and low carbon and environmental protection are achieved.

CN222702008UActive Publication Date: 2025-04-01CHINA RAILWAY 20TH BUREAU GROUP CO LTD
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Patent Information

Application Number
CN202420779005.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2025-04-01
Estimated Expiration
2034-04-16

AI Technical Summary

Technical Problem

The existing high-ground temperature tunnel construction cooling measures are costly and low-efficiency, and cannot effectively control high-temperature diffusion, and the low-carbon environmental protection goal has not been achieved.

Method used

A cold water cooling system for construction circulation in high ground temperature tunnels was designed. By setting up a high-level water pool and purification cooling pump room outside the tunnel, a water collection pool is set up on the palm surface of the tunnel, and cold water is introduced into the water collection pool and mixed with hot water. The mixed water is discharged to the purification cooling pump room through the drainage structure for treatment, and is recycled as construction water.

Benefits of technology

It has achieved low construction costs and high efficiency, effectively controlled high temperature diffusion, and achieved the goal of low carbon and environmental protection.

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Abstract

The utility model relates to a circulating cold water cooling system for high geothermal tunnel construction. The system includes a high-level water tank, a cold water insulation pipe, a drainage structure, a purification and cooling pump room and a water collection tank; the high-level water tank is located in the mountain outside the tunnel, the water collection tank is located at the tunnel face, and the purification and cooling pump room is located outside the tunnel; the cold water insulation pipe is arranged between the high-level water tank and the water collection tank, and is used to introduce cold water into the water collection tank and mix it with hot water on the tunnel face; the drainage structure is connected between the water collection tank and the purification and cooling pump room, and is used to introduce mixed water on the tunnel face into the purification and cooling pump room. The utility model introduces cold water outside the tunnel into the cooling water collection tank near the tunnel face, and achieves the purpose of rapid and convenient cooling through "adding cold water" methods such as direct mixing with high-temperature hot water in the tunnel working area and indirect mixing by spraying near the tunnel face, with low construction cost and high efficiency, and effectively controls the diffusion of high temperature.
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