Stepped recovery device for steam waste heat

The utility model discloses a steam waste heat cascade recovery device, which belongs to the field of steam recovery, and comprises a first heat exchange mechanism, the first heat exchange mechanism comprises a steam channel and a first water channel, the first water channel is connected with the steam channel, and a first heat preservation part is wound outside the steam channel. The first heat preservation part is used for maintaining the high-temperature state of condensate water. And the second heat exchange mechanism comprises a condensate water channel and a second water channel, the second water channel is connected with the condensate water channel, a second heat preservation part is arranged outside the condensate water channel in a winding mode, the condensate water channel is communicated with the steam channel, and high-temperature condensate water enters the condensate water channel from the steam channel. The device reasonably utilizes latent heat of steam and sensible heat of high-temperature c