Steam residual pressure recovery device with impurity removal and temperature reduction functions

Abstract

The present application relates to the technical field of steam residual pressure recovery, and particularly relates to a steam residual pressure recovery device with impurity removal and temperature reduction functions. The recovery device comprises a buffer tank, a heat exchange structure and two steam outlets. The buffer tank receives incoming steam, and the buffer tank sends the steam into the heat exchange structure in two ways. The two ways of steam are heat exchanged after temperature adjustment, and are discharged from independent steam outlets. The steam entering the buffer tank stays in the buffer tank for a short time, and is supplied into the heat exchange structure in two ways after stable flow and stable pressure. The two ways of steam change states in the flow channel of the heat exchange structure, and the temperature difference is generated after the state change. In the heat exchange structure, the heat is transferred from one way of steam to another way of steam. When discharged, under the same back pressure, one way of useful steam with high temperature and high pressure and one way of waste steam with further reduced temperature and pressure are obtained.

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