Tunnel insulation ditch heating system using ground source heat pump

Abstract

The invention discloses a tunnel insulation ditch heating system using a ground source heat pump, and belongs to the field of ground source heat pumps. The tunnel insulation ditch heating system usingthe ground source heat pump comprises a tunnel main body, and a pair of drainage channels is formed in the bottom end of the inner wall of the tunnel main body in a digging mode; the inner wall of the tunnel main body is fixedly connected with an insulation layer, and the insulation layer is fixedly connected with an installation layer; a plurality of heat exchange pipes uniformly distributed areconnected between the insulation layer and the installation layer, and a heat source ground pump main body is installed on the heat exchange pipes; insulating pipes matched with the drainage channelsare installed in the tunnel main body, and heat storage pipes are arranged on the lower sides of the insulating pipes; and heat conduction plates are connected between the insulting pipes and the heat storage pipes, and the bottom ends of insulation boards are fixedly connected with heat exchange films. According to the scheme, through storage of a part of heat released from a heat source groundpump in a tunnel, the interior of the drainage channels in the tunnel remains at higher temperature, and water flow entering the drainage channels in the tunnel is subjected to heat treatment throughthe insulating pipes; and when cold water flow in the tunnel is in contact with insulated water flow in the drainage channels, fogging is avoided.

Description

technical field [0001] The invention relates to the field of ground source heat pumps, and more specifically relates to a tunnel heat preservation ditch heating system for ground source heat pumps. Background technique [0002] The ground source heat pump is a device that transfers low-grade heat energy to high-grade heat energy by inputting a small amount of high-grade energy (such as electric energy, etc.) from shallow terrestrial energy. Usually the ground source heat pump consumes 1kwh of energy, and the user can get more than 4kwh of heat or cooling. The ground source heat pump uses rock and soil, stratum soil, groundwater or surface water as a low-temperature heat source. The heating central air-conditioning system composed of the system and the system in the building. According to the different forms of geothermal energy exchange systems, ground source heat pump systems are divided into buried pipe ground source heat pump systems, groundwater ground source heat pump ...

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Problems solved by technology

[0004] At present, for the drainage channels in the tunnel, the thermal insulation effect is not good, and the water in the drainage channel is easy to freeze. However, with ordinary thermal insulation measures, water mist will be generated after the cold water flow in the tunnel contacts with the hot water in the thermal insulation channel, and the water mist will easily penetrate into the tunnel. In the wall, the seepage water will flow into the cable trench after seeping into the side wall. On the one hand, it will pose a threat to the power supply line in the cable trench. irreparable damage

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