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Compression refrigeration system for permafrost degradation prevention

A compression refrigeration and permafrost technology, applied in the field of permafrost degradation prevention and control, can solve the problems that the regulation of roadbed stability is greatly affected by the environment, cannot actively regulate cooling capacity, and cannot ensure the stability of roadbed permafrost, etc., and achieves real-time stability and reliability. Intelligent control, flexible and controllable cooling depth range, avoiding the effect of seasonal factors

Pending Publication Date: 2018-02-23
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0009] The purpose of the present invention is to provide a compression refrigeration system capable of automatically regulating the temperature of permafrost and ensuring the structural stability of permafrost for preventing and controlling the degradation of permafrost, so as to solve the problem of using ambient temperature to regulate the temperature of subgrade permafrost in the above-mentioned background technology. However, it cannot actively control the cooling capacity, and the stability of the subgrade is greatly affected by the environment, which is a technical problem that cannot ensure the stability of the permafrost of the subgrade.

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[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with the drawings are exemplary, and are only used to explain the present invention, but not to be construed as limiting the present invention.

[0035] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements and / or groups thereof. It should be understood that "con...

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Abstract

The invention discloses a compression refrigeration system for permafrost degradation prevention. The system relates to the technical field of permafrost degradation prevention. The system comprises arefrigeration unit, a temperature signal acquisition unit, a central control unit and a power supply unit. The input end of the refrigeration unit is connected to the output end of the central control unit so as to regulate the temperature of the permafrost. The temperature signal acquisition unit is connected to the input end of the central control unit, which is used for collecting the temperature signal of the permafrost, and sending the temperature signal to the central control unit. The central control unit controls the on and off of the refrigeration unit based on the temperature signalof the permafrost. The output end of the power supply unit is connected to the other input end of the central control unit, which is used for supplying power to the central control unit and the refrigeration unit. The system is compact in structure, covers small area, is powered by solar and wind energy, is energy-saving and environmentally friendly. A stable and reliable intelligent real-time regulation for the permafrost temperature is achieved. The seasonal factor restriction of the permafrost degradation prevention is overcome.

Description

technical field [0001] The invention relates to the technical field of prevention and control of permafrost degradation, in particular to a compression refrigeration system for preventing and control of permafrost degradation. Background technique [0002] The distribution area of ​​permafrost in my country is huge, and permafrost is mainly distributed in the north of the Greater and Lesser Khingan Mountains in the northeast, the Tianshan Mountains and Altai Mountains in the west, and the Qinghai-Tibet Plateau, accounting for about 22.4% of the country's land area. With the extensive development of infrastructure construction in our country, road engineering has gradually become an important part of the development and construction of permafrost regions. In the process of road construction in permafrost regions, permafrost, a special geological body, is the first research object that needs to be considered. Frozen soil is a material that is extremely sensitive to temperatur...

Claims

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Application Information

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IPC IPC(8): E02D3/115F25B1/00F25B41/06F25B49/02F25B41/37
CPCF25B1/00F25B49/02E02D3/115F25B41/37Y02B30/70
Inventor 胡田飞刘建坤刘大伟郝中华常键张晓斌
Owner BEIJING JIAOTONG UNIV
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