A transmission line tower base with electrothermal air-blowing anti-frost heave functions for permafrost regions, comprising, a pile foundation cylinder, a cylinder top seat, a cylinder base, a transmission line tower connection frame, a support column inside the pile foundation cylinder, arcuate tubes, heating rods, and a top air-blowing device, wherein
- the cylinder top seat is fixedly provided at a top of the pile foundation cylinder, and the transmission line tower connection frame is fixedly mounted on the cylinder top seat for connecting to a bottom foot of a transmission line tower body;
- the cylinder base is provided at a bottom of the pile foundation cylinder and includes a plurality of threaded drill rod assemblies, and the cylinder base is configured to anchor the cylinder base to a foundation;
- the pile foundation cylinder includes a hollow installation cavity, and the support column is embedded in the installation cavity;
- two vertical grooves are symmetrically formed on a cavity wall of the installation cavity, two diameter-expanding wing plates, extending outward from an outer wall of a lower portion of the pile foundation cylinder, are symmetrically arranged on the outer wall of the lower portion of the pile foundation cylinder, and the two diameter-expanding wing plates are respectively positioned below the two vertical grooves;
- each diameter-expanding wing plate includes an inclined channel, a top of the inclined channel is communicated with a bottom of a corresponding vertical groove of the two vertical grooves, and a plurality of installation through-holes are symmetrically formed on front and rear surfaces of each diameter-expanding wing plate, the arcuate tubes are provided at front and rear surfaces of the two diameter-expanding wing plates through the plurality of installation through-holes to connect the inclined channels of the two diameter-expanding wing plates with the arcuate tubes;
- a top portion of the support column includes an equipment installation chamber, and two passageways are symmetrically formed on a wall of the equipment installation chamber, and the two passageways are in one-to-one correspondence with and communicate with the two vertical grooves;
- two heating rods are symmetrically connected to an outer wall of the support column through hinge connectors, the two heating rods are respectively inserted into two inclined channels of the pile foundation cylinder, and a cross-section of each heating rod is smaller than a cross-section of each inclined channel and a cross-section of each vertical groove;
- the top air-blowing device is arranged at the top of the pile foundation cylinder and includes an outer casing, a fan, and a fan drive motor, wherein the outer casing is fixedly provided at the top of the pile foundation cylinder, the fan and the fan drive motor are located in the outer casing, the fan is connected to the fan drive motor through a connecting shaft, a top cover is provided at a top of the outer casing, a side vent pipe is provided on a side wall of the outer casing, and a filter is mounted at a port of the side vent pipe;
- wherein the fan directs airflow downward into the two inclined channels through the two passageways and the two vertical grooves, forcing heat from the two heating rods in the two inclined channels to transfer into the arcuate tubes with the airflow, thereby dispersing the heat into surrounding soil to raise temperature of the surrounding soil;
- and
- the cylinder top seat and the transmission line tower connection frame are mounted on a wall of the pile foundation cylinder below the equipment installation chamber.