Composite heat pipe for soil temperature regulation and control and control method thereof

Abstract

The invention discloses a composite heat pipe for soil temperature regulation and control and a control method thereof. The composite heat pipe comprises a solar photovoltaic device, a composite refrigeration device and a control module, the control module is connected to the solar photovoltaic device and the composite refrigeration device, the solar photovoltaic device comprises a solar photovoltaic panel, an electric energy controller, a storage battery, an inverter and an electric meter, the composite refrigeration device comprises an air-cooled condenser, an electric valve, an electric expansion valve, a compressor, a self-standing three-way valve and a direct expansion type evaporator, and the control module comprises a sensor and a controller. According to the composite heat pipe andthe control method thereof, the condenser and the evaporator are shared, so that valves, refrigerant circulating pipelines and the like are ingeniously designed, heat in soil can be efficiently discharged to low-temperature air and can also be effectively discharged to high-temperature air, and the economical performance and the high efficiency of the device are achieved. The composite heat pipeand the control method thereof can be widely applied to the field of temperature regulation and control devices.

Description

technical field [0001] The invention relates to the field of temperature control devices, in particular to a composite thermal rod for soil temperature control and a control method thereof. Background technique [0002] For permafrost regions, the thawing of permafrost in warm seasons will cause undesirable phenomena such as subgrade deformation, arching, and tilting, which will affect the stability of high-speed railways and even cause casualties in severe cases. Therefore, in order to ensure the stability and safety of subgrade engineering in permafrost regions, it is necessary to ensure the bearing capacity and thermal stability of the permafrost, prevent the temperature of the permafrost from rising, and prevent the permafrost from melting. [0003] In order to actively cool the subgrade and prevent the soil temperature from rising in permafrost regions, technologies such as block stone layers, ventilation pipes, and hot rods are mostly used at present. One section of a...

AI Technical Summary

Problems solved by technology

However, this type of technology is mainly used in cold seasons and other conditions where the atmospheric temperature is low. The cold season storage of the soil is used to resist the rise in soil temperature in the warm season, and it is impossible to achieve year-round cooling of the soil.

Especially in the warm season when the risk of permafrost degradation is high, traditional hot rods cannot operate and cannot solve the problem of permafrost thawing in the warm season

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