Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system
A heat exchange system, layer-buried technology, applied in the field of tunnel surrounding rock, can solve the problems of increasing construction cost and construction period, and achieve the effects of saving construction cost, high heat exchange efficiency, and saving construction period
Inactive Publication Date: 2017-03-22
SHAOXING UNIVERSITY +1
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Problems solved by technology
[0003] In order to overcome the problems that the existing passive extraction technology of geothermal energy from the surrounding rock of the tunnel is not suitable for areas with underdeveloped and undeveloped groundwater, and the active extraction technology needs to increase the construction cost and construction period, etc. Higher, cost-saving and construction-period-saving energy tunnel inverted arch layer buried geothermal energy heat exchange system
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[0021] The present invention will be further described below in conjunction with the drawings.
[0022] Reference Figure 1 ~ Figure 3 , An energy tunnel invert layer buried geothermal energy heat exchange system, the tunnel includes a road surface 6, a second tunnel lining 1 and a tunnel invert 2, above the road surface 6 is the second tunnel lining 1, and below the road surface 6 is the backfill layer 5 , The backfill layer 5 is located on the tunnel invert 2, a heat exchange layer 3 is arranged between the tunnel invert 2 and the backfill layer 5, and the water inlet 10 of the heat exchange layer 3 is in communication with the water supply pipe 7, The water outlet 11 of the heat exchange layer 3 is in communication with a water return pipe 8, and the water supply pipe 7 and the water return pipe 8 are both connected with the user terminal or the heat pump to form a closed circulation pipeline, and a waterproof layer 4 is arranged above the heat exchange layer 3.
[0023] Furthe...
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The invention discloses an energy tunnel inverted arch layer burying type ground temperature energy heat exchange system. A tunnel comprises a pavement, a tunnel secondary lining and a tunnel inverted arch. The tunnel secondary lining is arranged above the pavement, and a backfill layer is arranged below the pavement. The backfill layer is located on the tunnel inverted arch. A heat exchange layer is arranged between the tunnel inverted arch and the backfill layer. A water inlet of the heat exchange layer communicates with a water supply pipe, and a water outlet of the heat exchange layer communicates with a water return pipe. The water supply pipe and the water return pipe are both connected with a user end or a heat pump to form a closed circulation pipeline. A waterproof layer is arranged above the heat exchange layer. The energy tunnel inverted arch layer burying type ground temperature energy heat exchange system good in applicability, higher in heat exchange efficiency and capable of saving cost and reducing the construction period is provided.
Description
Technical field [0001] The invention relates to the field of tunnel surrounding rock, in particular to a buried geothermal energy heat exchange system for an energy tunnel invert layer. Background technique [0002] The soil temperature within a few hundred meters of the shallow surface of the earth shows an increasing trend with depth, and the ground temperature rises by about 3-5℃ for every 100 meters of depth. The ground temperature at 1000 meters underground is about 40-50℃, and the buried depth is hundreds of meters. Huge geothermal energy is stored in the surrounding rock of the mountain tunnel. There are two existing technologies for extracting geothermal energy from the surrounding rock of the tunnel. One is to directly collect the geothermal water in the surrounding rock of the tunnel. This technology is a passive extraction technology, but this technology is only suitable for areas with abundant groundwater. Or where there is no groundwater, it cannot be applied; the o...
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IPC IPC(8): F24J3/08F25B30/06
CPCF24T10/10F25B30/06Y02E10/10
Inventor 杜时贵张国柱夏才初雍睿徐坚
Owner SHAOXING UNIVERSITY