Title:
EXHAUST HEAT RECOVERY BOILER AND METHOD FOR CONTROLLING TEMPERATURE OF HEAT TRANSFER PIPE OF EXHAUST HEAT RECOVERY BOILER
Document Type and Number:
WIPO Patent Application WO/2020/195326
Kind Code:
A1
Abstract:
Provided is an exhaust heat recovery boiler with which corrosion of a heat transfer pipe can be suppressed. This exhaust heat recovery boiler (100) comprises: a duct (120); a heat transfer pipe (320) that includes a water inlet (322) and a water outlet (324), and that is disposed inside the duct (120); a water supply piping (400) that includes a first piping (420), and a second piping (440) which branches from the first piping (420) and then converges again with the first piping (420); a tank (160) which is in fluid communication with the water outlet (324) and in the inside of which at least a portion of the second piping (440) is disposed; a water amount adjustment valve (500) that adjusts a ratio between a flow amount of water flowing through the first piping (420) and a flow amount of water flowing through the second piping (440); a measurement device (600) that measures a corrosion rate of the inside of the duct (120); and a control device (800) that adjusts the water amount adjustment valve (500) according to the measurement result.
Inventors:
MIWA KEISUKE (JP)
NOGUCHI MANABU (JP)
ISHIKAWA EIJI (JP)
MATSUOKA KEI (JP)
CHO HIROMITSU (JP)
NOGUCHI MANABU (JP)
ISHIKAWA EIJI (JP)
MATSUOKA KEI (JP)
CHO HIROMITSU (JP)
Application Number:
PCT/JP2020/006049
Publication Date:
October 01, 2020
Filing Date:
February 17, 2020
Export Citation:
Assignee:
EBARA ENV PLANT CO LTD (JP)
International Classes:
F22D1/12; F22B1/18; F22B37/38; F22D1/36
Foreign References:
| JP2006258603A | 2006-09-28 | |||
| JP2017032166A | 2017-02-09 | |||
| JPS60140014A | 1985-07-24 |
Attorney, Agent or Firm:
MIYAMAE, Toru et al. (JP)
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