Title:
高温部観察窓
Document Type and Number:
Japanese Patent JP6766483
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a high-temperature part observation window having a simplified structure for compactification, which is configured to: cool a front face and a rear face of a hot mirror arranged with a narrow interval so that cooled gas laminar-flows; and protect a body of the hot mirror and its coating from heat.SOLUTION: A high-temperature part observation window is configured such that a glass holder includes: a hot mirror; a hot mirror pressing plate having gear-shaped projections into a ring manner on an outer periphery and pressing the hot mirror, the gear-shaped projections folded at a constant angle in a longitudinal direction of a visual field shaft of a camera; a heatproof glass; and a heatproof glass pressing plate, on an inner wall of the glass holder, provided are: a cooled gas supply passage groove for supplying cooled gas to the external surface of the heatproof glass and also supplying cooled gas to each hot mirror surface through each gear-shaped projection; and a cooled gas discharge passage groove for cooling positioned oppositely to the cooled gas supply passage groove. The heatproof glass pressing plate directs flow of cooled gas circulating from the cooled gas supply passage groove and the cooled gas discharge passage groove to the outside where the heatproof glass is provided, toward a cylindrical center direction.SELECTED DRAWING: Figure 1
Inventors:
Yasuhiko Awa
Application Number:
JP2016134831A
Publication Date:
October 14, 2020
Filing Date:
July 07, 2016
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
F27D21/02
Domestic Patent References:
| JP5141878A | ||||
| JP2008138985A | ||||
| JP61114085A | ||||
| JP2007225266A | ||||
| JP8049988A |
Attorney, Agent or Firm:
Intellectual Property Office