Probe-type foreign object removal tool for heat exchanger tube

Abstract

The probe-type heat exchanger tube foreign matter removal device of the present invention comprises a flexible cable corresponding to a non-rotating part, a rotating part for removing foreign matter, a water supply device, and a transfer device for transporting and retrieving the heat exchanger tube foreign matter removal device. Water supplied through four water supply tubes of the water supply device, which includes a pump, is sprayed obliquely at an angle of inclination by a water spray nozzle capable of rotating 0° and 180° to remove foreign matter inside the heat exchanger tube. A tool wire for controlling the rotating part, which is controlled by a tension control motor and a tension force limiting switch of the transfer device, is installed within the flexible cable. The transfer device is provided with a separate transfer wire to transport the probe-type heat exchanger tube foreign matter removal device, which consists of the flexible cable and the rotating part for removing foreign matter. A tool wire for transporting the tool is arranged at the center of the flexible cable, and four water supply tubes are arranged around the circumference of the tool wire. The rotating part is characterized by being configured to include a first gripper, first and second cylindrical sheet metal fixing parts, a second gripper, a sheet metal fixing head part, and a flexible metal sheet metal outer shell.