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Title:
SEAL STRUCTURE FOR CIRCULAR TUBE BODY
Document Type and Number:
WIPO Patent Application WO/2010/137141
Kind Code:
A1
Abstract:
A seal structure for a circular tube body mounted in a shell body, wherein the seal structure does not cause a sealing failure due to errors in the straightness, roundness, and a tolerance in the diameter of the circular tube body and wherein the seal structure absorbs such errors, if any, in the straightness, roundness, and a tolerance in the diameter of the circular tube body. O-ring holders (13B) in each of which a flat O-ring (12B) for sealing a circular tube body (10) in the horizontal direction and a radial O-ring (16B) for sealing the circular tube body in the axial direction thereof are mounted in directions crossing each other are provided to opposite ends of the circular tube body (10).  A pressing means (17B) presses an O-ring holder in the axial direction thereof with a pressing lid (15B) interposed therebetween.  The gap between a fluid chamber (20) and the outside is sealed fluid-tight by pressing, with the pressing lid interposed therebetween, the O-ring holder against a tube plate of the fluid chamber by the pressing means to cause the horizontal O-ring to be in pressure contact with the tube plate.  The gap between a fluid passage (30) in the circular tube body and the fluid chamber is sealed fluid-tight by causing the radial O-ring to be in pressure contact with the outer periphery of the circular tube body.

Inventors:
OGINO, Shinji (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Itozaki Minami 1-Chome, Mihara-sh, Hiroshima 93, 〒7290393, JP)
荻野 信二 (〒93 広島県三原市糸崎南一丁目1番1号 三菱重工業株式会社プラント・交通システム事業センター内 Hiroshima, 〒7290393, JP)
NISHIDA, Shigeru (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Itozaki Minami 1-Chome, Mihara-sh, Hiroshima 93, 〒7290393, JP)
西田 茂 (〒93 広島県三原市糸崎南一丁目1番1号 三菱重工業株式会社プラント・交通システム事業センター内 Hiroshima, 〒7290393, JP)
HIRAYAMA, Haruaki (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Itozaki Minami 1-Chome, Mihara-sh, Hiroshima 93, 〒7290393, JP)
平山 晴章 (〒93 広島県三原市糸崎南一丁目1番1号 三菱重工業株式会社プラント・交通システム事業センター内 Hiroshima, 〒7290393, JP)
Application Number:
JP2009/059716
Publication Date:
December 02, 2010
Filing Date:
May 27, 2009
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目16番5号 Tokyo, 〒1088215, JP)
OGINO, Shinji (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Itozaki Minami 1-Chome, Mihara-sh, Hiroshima 93, 〒7290393, JP)
荻野 信二 (〒93 広島県三原市糸崎南一丁目1番1号 三菱重工業株式会社プラント・交通システム事業センター内 Hiroshima, 〒7290393, JP)
NISHIDA, Shigeru (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Itozaki Minami 1-Chome, Mihara-sh, Hiroshima 93, 〒7290393, JP)
西田 茂 (〒93 広島県三原市糸崎南一丁目1番1号 三菱重工業株式会社プラント・交通システム事業センター内 Hiroshima, 〒7290393, JP)
HIRAYAMA, Haruaki (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Itozaki Minami 1-Chome, Mihara-sh, Hiroshima 93, 〒7290393, JP)
International Classes:
F16J15/06; F16L5/02
Attorney, Agent or Firm:
OKUYAMA, Shoichi et al. (8th Floor, Akasaka NOA Bldg. 2-12, Akasaka 3-chome, Minato-k, Tokyo 52, 〒1070052, JP)
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