Radiant tube heating system

The invention discloses a radiant tube heating system which comprises a radiant tube, fused salt, a temperature monitoring device and a fused salt flow control device, and the interior of the radiant tube is filled with the fused salt; the radiant tube is provided with a fused salt inlet and a fused salt outlet; the fused salt flow control device is connected with the fused salt inlet; the temperature monitoring device is connected with the fused salt flow control device and used for transmitting a monitored temperature signal to the fused salt flow control device so that the fused salt flow control device can adjust the flow of fused salt entering and exiting the radiant tube according to the temperature signal. According to the radiant tube heating system, the service life of the radiant tube is prolonged; the flow of molten salt is controlled through the molten salt flow control device, the heating temperature can be efficiently adjusted, and the heat transfer efficiency of the radiant tube is improved; th