Low pressure steam condensed water residue heat-recovering device

The utility model relates to a residue heat -recovering device, in particular to a low pressure steam condensed water residue heat-recovering device. A low pressure steam type generator is arranged, with a steam inlet formed at one end and a condensed water discharge pipeline arranged at the other end; the condensed water discharge pipeline is connected with the water inlet of a condensed water tank, and the water outlet of the condensed water tank is communicated with a heat recoverer through a condensed water pipeline; a condensed water pump is mounted on the condensed water pipeline; and a heat absorption pipeline is arranged in the heat recoverer. In the utility model, the residue heat-recovering device with a simple structure is additionally mounted on the condensed water discharge pipeline of the low pressure steam generator, after the condensed water is collected in the water tank, a controller detects water level signal through a liquid level electrode to control the work of the condensed water pump,