Air curtain heat preservation heating system for tunnels in cold region

Abstract

The invention discloses an air curtain heat preservation heating system for tunnels in a cold region. The air curtain heat preservation heating system comprises a storage battery, a PLC intelligent control system, a wind-light supplementary power generation subsystem, an air curtain heat supply subsystem and an air curtain heat preservation subsystem. The wind-light supplementary power generation subsystem is used for supplying power to draught fans in the air curtain heat supply subsystem and the air curtain heat preservation subsystem through electric energy converted from wind energy and light energy or an industrial supplementary power source. The air curtain heat supply subsystem heats air of portal sections of the tunnels through a plurality of pairs of hot wind air curtains. The air curtain heat preservation subsystem reduces exchange of inside heat energy and outside cold energy of the tunnels through air flow jetted by a plurality of sets of natural wind air curtains. The PLC intelligent control system can control the three subsystems. The system has the beneficial effects that energy saving and environment friendliness are achieved, the air curtains can be automatically controlled to work fully according to the outside environment, the amount of cold air entering the tunnels is effectively reduced, the temperature of the air in the tunnels is effectively increased, and normal traffic safety is not influenced.

Description

technical field [0001] The invention relates to the technical field of cold protection and heat preservation of tunnels in cold regions, in particular to an air curtain heat preservation and heating system for tunnels in cold regions. Background technique [0002] The actual situation of a large number of tunnel construction and operation at home and abroad shows that in cold regions, especially when the groundwater develops, tunnels often suffer from freezing damage, which directly endangers the tunnel structure and traffic safety, causing serious economic losses. Especially in the tunnel entrance section, frost damage is prone to occur, such as cracking, brittle or peeling of the tunnel lining, thermal thawing and slumping at the tunnel entrance, water leakage or ice hanging on the tunnel lining, freezing of drains or water outlets, cracking of the tunnel door wall, and tunnel bottom Frost heaving due to water leakage or accumulated water seriously affects the normal funct...

AI Technical Summary

Problems solved by technology

The above-mentioned patent application installs the ground source heat pump heat exchanger in the hollow anchor rod in the surrounding rock in the middle of the tunnel, thereby replacing the underground drilling required by the traditional ground source heat pump buried pipe. Solar energy is stored in the surrounding rock of the tunnel and used for heating in winter, which realizes the advantage of using solar energy across seasons, but its thermal insulation and heating effect is limited, and it cannot eradicate the occurrence of tunnel freezing damage

Images