Energy source tunnel lining composite type ground warmth anti-freezing heating system

Abstract

The invention provides an energy source tunnel lining composite type ground warmth anti-freezing heating system. The system comprises a tunnel heating section. The tunnel heating section comprises a heat supply pipeline. The heat supply pipeline is paved in the tunnel corresponding to the tunnel heating section, both ends of the tunnel heating section are connected to a second water pipe and a second water return pipe respectively, the second water pipe and the second water return pipe are connected to a heat pump tail end to form a heat supply circulation pipeline, the anti-freezing heating system further comprises a tunnel heat exchange section, the tunnel corresponding to the tunnel heat exchange section comprises a tunnel first lining and a tunnel second lining, a heat exchange layer is arranged between the tunnel first lining and the tunnel second lining, a first water inlet of the heat exchange layer are communicated with a first water supply pipe, a first water outlet of the heat exchange layer are communicated with a first water return pipe, and the first water supply pipe and the first water return pipe are both connected to the front end of a heat pump to form the heat circulation pipeline. The energy source tunnel lining composite type ground warmth anti-freezing heating system is good in applicability and higher in heat exchange efficiency, saves cost and shortens construction cycle.

Description

technical field [0001] The invention relates to the field of tunnel surrounding rock, in particular to an energy tunnel lining composite geothermal energy antifreeze heating system, which is suitable for extracting geothermal energy from the surrounding rock behind the tunnel lining and at the lower part of the inverted arch in areas where groundwater is underdeveloped and underdeveloped, and is used for tunnel lining Pavement and lining are heated. Background technique [0002] In recent years, with the rapid development of my country's traffic construction, the number of tunnels in cold regions is increasing day by day, but the problem of frost damage in tunnels in cold regions has become increasingly prominent. Soon after some newly-built tunnels were put into use, large-scale frost damage occurred, which seriously affected tunnel traffic safety. . A survey of road tunnels in cold regions that have been in operation found that more than 80% of the tunnels in cold regions ...

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Problems solved by technology

[0005] In order to overcome the fact that the existing geothermal water collection technology in the surrounding rock of the tunnel cannot be applied to areas with underdeveloped and undeveloped groundwater, and the geothermal energy in the surrounding rock at the lower part of the inverted arch cannot be extracted; although the technology of laying heat exchange pipes is not limited by the development of groundwater, However, the heat exchange tube is a linear heat source, its heat exchange capacity is limited, and the laying of the heat exchange pipeline will increase the construction cost of the project. Energy Tunnel Lining Composite Geothermal Energy Antifreeze Heating System

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