Railway turnout snow-melting system based on ground source heat pump

Abstract

The invention discloses a railway turnout snow-melting system based on a ground source heat pump. The railway turnout snow-melting system comprises a hot water pipe, a heat pump unit, a vertical buried tube heat exchanger, a circulating pump, a control valve and a control device which are positioned in a turnout base. The railway turnout snow-melting system based on the ground source heat pump, which is provided by the invention, adopts a new energy using mode combining the ground source heat pump with railway turnout snow-melting and icing, and according to the technology, low-level heat energy is extracted from an underground rock-soil layer and after being lifted by the heat pump unit, the heat energy is finally transferred to a turnout, so that requirements for melting snow and deicing are reached. On the other aspect, when the turnout snow-melting system based on the ground source heat pump is used in summer, fluid in a buried tube stores solar radiation heat energy adsorbed by a railway turnout line under the ground by a heat pump technology, and the not only can the heat energy be used for melting snow in winter, but also the temperature of the line can be reduced and bad influence of the high temperature on the turnout is improved.

Description

technical field [0001] The invention belongs to the technical field of natural energy utilization, and in particular relates to a snow melting system for railway turnouts based on ground source heat pumps. Background technique [0002] At present, in the development and application of railway turnout snow melting equipment, electric heating snow melting equipment is mainly used for turnout snow removal, and it has been installed and used on some railway line turnouts; [0003] The electric heating snow melting system automatically controls the heating of the heating strips (rods) installed on the basic rail waist, point rail or upper part of the rail bottom of the turnout, or installed on the sliding bed plate by collecting information such as the temperature, humidity, rain and snow of the turnout on the railway site, so as to realize the heating of the turnout. snow removal. No matter where the electric heating element is installed, it mainly heats the ambient tempera...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a railway turnout snow melting system based on ground source heat pump, aiming to solve the problem of high heating element cost of existing electric heating snow melting equipment; large heat conduction loss, large power consumption; inconvenient installation and maintenance; high operating cost , the problem of excessive investment in power capacity expansion

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