Title:
CLEANING DEVICE AND HEAT TRANSFER TUBE CLEANING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/181053
Kind Code:
A1
Abstract:
The purpose according to the present invention is to efficiently clean a plurality of heat transfer tubes which are arranged side-by-side in the vertical direction. A cleaning device (200) extends in the X-axis direction and cleans heat transfer tubes (151) which are arranged side-by-side, at prescribed intervals, in the Z-axis direction that intersects with the X-axis direction, and in the direction of a Y-axis that intersects with the X-axis direction and the Z-axis direction. The cleaning device (200) comprises: spray holes that spray dry ice pellets toward the outer surface of the heat transfer tubes (151); and an expansion mechanism (209) that can adjust the position of the spray holes in the Z-axis direction, and the spray holes are inserted, from above, into gaps between the heat transfer tubes (151) adjacent to one another in the Y-axis direction.
Inventors:
OZAWA YUTA (JP)
TANAKA AKIHIRO (JP)
KAWABAYASHI HIROYOSHI (JP)
YAMASAKI YOSHINORI (JP)
SUGIYAMA TOMOAKI (JP)
TSUCHIYAMA YOSHIHIKO (JP)
ANKEI NAOKI (JP)
TANAKA AKIHIRO (JP)
KAWABAYASHI HIROYOSHI (JP)
YAMASAKI YOSHINORI (JP)
SUGIYAMA TOMOAKI (JP)
TSUCHIYAMA YOSHIHIKO (JP)
ANKEI NAOKI (JP)
Application Number:
PCT/JP2021/048998
Publication Date:
September 01, 2022
Filing Date:
December 28, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
B08B7/00; F22B37/48; F23J3/00; F28G1/12; F28G9/00
Domestic Patent References:
| WO2019074040A1 | 2019-04-18 | |||
| WO2020027324A1 | 2020-02-06 |
Foreign References:
| JP2019534439A | 2019-11-28 | |||
| JPH0921522A | 1997-01-21 | |||
| US20200096265A1 | 2020-03-26 | |||
| JPS5949420A | 1984-03-22 | |||
| JPH01239393A | 1989-09-25 | |||
| JP2001336897A | 2001-12-07 | |||
| JP2017522531A | 2017-08-10 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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