Boiler feed water preheating device

The utility model discloses a boiler feed water preheating device, and relates to the technical field of heat exchange equipment, the boiler feed water preheating device comprises a water tank, a heat exchange tank, a water conveying pipe and a steam conveying pipe, the water conveying pipe communicates with the water tank, and the end, away from the end connected with the water conveying pipe, of the water conveying pipe is connected with a plurality of flow dividing pipes which communicate with the heat exchange tank; the ends, communicated with the heat exchange tank, of the shunt pipes are connected with heat exchange coil pipes, the heat exchange coil pipes are arranged in the heat exchange tank in the length direction of the heat exchange tank, the top wall of the heat exchange tank communicates with a water outlet pipe, the ends, away from the ends connected with the shunt pipes, of the heat exchange coil pipes are all connected with the water outlet pipe, and the steam conveying pipe is fixedly connec