US 2011/0214623 A1Published application

Apparatus for recovering re-evaporated steam and condensate

AssigneeYeongil Pumptech Co., Ltd.

InventorsPyong Kook Choi, Young Han Choi

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Abstract

The present invention relates to an apparatus for recovering re-evaporated steam and condensate, and in particular, to an apparatus for mixing the steam re-evaporated from condensate that is discharged from a heating unit for heating an object to be treated, with high-temperature steam supplied from a boiler, and for resupplying the mixed steam to the heating unit. To this end, the apparatus comprises: a steam recovery unit for recovering the condensate discharged from a heating unit for heating an object to be treated, and the steam re-evaporated from the condensate, and then supplying the recovered re-evaporated steam to a steam-pressurizing unit and the recovered condensate to a boiler; and the steam-pressurizing unit for mixing the re-evaporated steam supplied from the steam recovery unit, with high-temperature steam supplied from the boiler and then supplying the mixed steam to the heating unit. Therefore, with a closed circuit, the apparatus can recover the whole quantity of the re-evaporated steam and condensate for use, prevent the release of steam into the air and utilize a latent heat contained in the condensate, thereby improving the efficiency of energy consumption.

Claims4

Dependent claims

An apparatus for recovering re-evaporated steam and condensate for a boiler, the apparatus comprising:

a steam recovery unit for recovering condensate discharged from a heating unit for heating an object to be treated, and the steam re-evaporated from the condensate, and then supplying the recovered re-evaporated steam to a steam-pressurizing unit and the recovered condensate to the boiler;
and
the steam-pressurizing unit for mixing the re-evaporated steam supplied from the steam recovery unit, with high-temperature steam supplied from the boiler and then supplying the mixed steam to the heating unit,
wherein the steam-pressurizing unit comprises:
a stream re-pressurization control valve for mixing the high-temperature steam supplied from the boiler with the re-evaporated steam supplied from the steam recovery unit, and supplying the mixed steam to the heating unit;
a pressure sensor;
disposed between stream re-pressurization control valve and the heating unit for detecting a pressure of the steam supplied to the heating unit;
and a pressure control unit for outputting an operation control signal to the stream re-pressurization control valve based on the pressure detected from the pressure sensor and controlling the operation of the stream re-pressurization control valve.

5 more elements

Dependencies are inferred from the claim text.