Thermal insulation water supply well through geothermal method and construction method thereof

Abstract

The invention provides a thermal insulation water supply well through a geothermal method and a construction method thereof. The thermal insulation water supply well through the geothermal method comprises an original equipment well and a heat source well, the heat source well is located below the original equipment well, a grate plate is arranged between the original equipment well and the heat source well, a supporting ring is installed on the circumference of the heat source well, a well wall thermal insulation layer is arranged between the well wall of the original equipment well and the soil surface, and a thermal insulation layer and a bearing well cover are arranged on the upper portion of the original equipment well. The thermal insulation water supply well through the geothermal method and the construction method of the thermal insulation water supply well adopt the income increasing and expenditure reducing technology aiming at heat, the heat source well additionally arranged at the lower portion of the water supply well to lead out underground heat to perform full thermal insulation on the upper portion and the side face of the water supply well so as to reduce heat loss, and the heat on the lower portion is conveyed to the upper portion continuously through natural cold and hot convection of air and steam in the well. The temperature in the well is kept above 0 DEG C always, generally above 3 DEG C, water supply facilities in particular outdoor fire-fighting wells and water supply wells and fire-fighting wells along the railways of the northern area in winter can be operated normally, and accidents are avoided.

Description

technical field [0001] The invention relates to a thermal insulation device for an outdoor water supply well, in particular to an outdoor fire hydrant well, a water supply well along a railway line and a fire well with geothermal heat preservation and a construction method thereof. Background technique [0002] In most parts of northern my country, including Heilongjiang, Jilin, and Liaoning in the northeast; Inner Mongolia, Hebei, and northern Shanxi in North China; northern Shaanxi, Gansu, Ningxia, Qinghai, and Xinjiang in the northwest; and most of Tibet, the winter temperature is 0°C Below, the surface of the earth is frozen. Therefore, the underground water supply pipelines in these areas are buried in the soil below the freezing line. [0003] Water pipes are laid below the freezing line to avoid freezing in winter. However, if the water point must be located outdoors, the insulation of the water point has become a more difficult problem to deal with. For example, ar...

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Problems solved by technology

But these measures have low reliability and a high chance of freezing

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