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1. (WO2017179420) SOOT BLOWING APPARATUS

Pub. No.:    WO/2017/179420    International Application No.:    PCT/JP2017/012714
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: F28G 1/16
F23J 3/00
Applicants: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
三菱日立パワーシステムズ株式会社
MHI PLANT CORPORATION
MHIプラント株式会社
Inventors: SAKASHITA, Gen
坂下 元
KOYAMA, Yoshinori
小山 智規
YAMAMOTO, Takashi
山元 崇
HAARI, Kenta
羽有 健太
SHIBATA, Yasunari
柴田 泰成
KITADA, Masashi
北田 昌司
OKUDA, Yasushi
奥田 康史
TSUDA, Masami
津田 昌美
MURAI, Satoru
村井 暁
Title: SOOT BLOWING APPARATUS
Abstract:
This soot blowing apparatus is provided with a heat transfer tube of a heat exchanger disposed inside a pressure vessel (100) and an injection pipe (5) from which vapor for cleaning is injected toward the heat transfer tube and which is provided to be inwardly and outwardly movable with respect to the pressure vessel (100). The soot blowing apparatus comprises: a tubular casing (1) through which the injection pipe (5) passes encloses an insertion hole (100a) on the side of the pressure vessel (100) in which the injection pipe (5) is inserted and extends outward from the pressure vessel (100); a supporting part (7) provided inside the casing (1) for guiding movement of the injection pipe (5) and securing airtightness between the casing (1) and the injection pipe (5); and a first gas supply apparatus (30) disposed proximately to the supporting part (7) for generating a jet of gas (nitrogen gas) in a portion where the injection pipe (5) protrudes toward the pressure vessel (100) side. Thus, char adhered on the surface of the injection pipe for blowing soot is prevented from being taken into a sealing material.