Active ground source-air source snow and ice melting device and construction process thereof

Abstract

The invention discloses an active ground source-air source snow and ice melting device. The device comprises a road surface heating pipe set transversely buried in the shallow ground surface. A horizontal collector parallel to the length direction of a road surface and a buried pipe set vertically buried in a deep layer are arranged on the two sides of the road surface with the temperature increase requirement. Both the road surface heating pipe set and the buried pipe set are connected with the horizontal collector, and a water pump and an externally-connected heat source are installed on thehorizontal collector. The road surface heating pipe set is composed of a header pipe and branch pipes, the header pipe is installed on the outer side of the road surface and is parallel to the lengthdirection of the road surface, the header pipe comprises an outer pipe and an inner pipe which are nested together, the portion between the inner pipe and the outer pipe is filled with an inorganic heat conducting medium layer, and the branch pipes communicate with an inner cavity between the inner pipe and the outer pipe of the header pipe. The horizontal collector is connected with the inner pipe of the header pipe of the road surface heating pipe set, heat collected by the horizontal collector is transmitted to the inner pipe of the header pipe of the heating pipe set, an inorganic heat conducting medium between the inner pipe and the outer pipe is heated, heat is transmitted to the road surface through the branch pipes of the road surface heating pipe set, and snow and ice melt. The invention further discloses a construction process of the device.

Description

technical field [0001] The invention relates to a road heating technology, in particular to an active ground source-air source snow and ice melting device and its construction technology. Background technique [0002] In the use of large-area open-air facilities such as airport runways, expressways, and municipal roads, ice and snow weather will have a huge impact, ranging from delaying traffic to traffic, and causing safety accidents. Therefore, when the above-mentioned facilities are used in ice and snow weather, snow-melting and thawing operations should be performed. The traditional method is to sprinkle snow-melting and ice-melting agents, but the cost of spraying snow-melting and ice-melting agents is high, causing corrosion to the ground and polluting the environment. [0003] The Chinese invention patent with the patent publication number CN1238721A discloses a superconducting heat transfer medium, which can transfer heat quickly. [0004] The Chinese utility model ...

AI Technical Summary

Problems solved by technology

The heat release pipe adopts a horizontal S-shaped coil, and a third water inlet and outlet pipe is added. The pipeline is long and prone to three problems: first, the resistance along the heating pipeline is increased, and the farthest end of the pipeline is due to the water flow velocity. The decrease of the heat transfer efficiency will reduce the heat transfer efficiency and affect the speed of melting snow and ice; secondly, a large number of pipelines are buried under the pavement, which will cause certain damage to the bearing capacity of the pavement, and due to the characteristics of thermal expansion and contraction, it will cause supply The thermal expansion and contraction of the heat pipe and the airport runway affect the service life of the runway; third, the use of horizontal S-shaped coils increases the connection between the pipes and increases the risk of leakage

The viscosity of ethylene glycol increases under low temperature conditions, which requires an increase in the power consumption of the pump and reduces the efficiency of the entire heat pump system

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