Anti-coking hydrocarbon steam reforming furnace

The utility model provides an anti-coking hydrocarbon steam reformer which comprises a reformer body assembly and a temperature sensor, and the reformer body assembly comprises a reformer body, a discharge pipe and a catalytic bed; wherein the discharge pipe is communicated with the top of the reformer body; steam is injected into the buffer mechanism by starting the electromagnetic valve, then the buffer mechanism is used for buffering the discharged steam, so that the steam enters the heat exchange mechanism at a constant speed, and then the heat exchange mechanism is used for prolonging the time that the steam enters the catalytic bed. The temperature difference between the steam and the temperature in the reformer body is reduced in a heat transfer manner to prevent catalyst passivation caused by overlarge temperature difference, and then the steam subjected to heat exchange in the heat exchange mechanism is slowly discharged to the bottom of the catalytic bed by utilizing the exhaust mechanism to prevent