Stub tube and boiler

Stub tube and boiler

A boiler comprising (1) : a header (7) through which a heat medium flows; a stub tube (8) branched from the header and having a base end part (8a) connected to the header (7) ; and a heat transfer tube (9) connected to a tip part (8b) of the stub tube (8), through which the heat medium from the head...

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Hauptverfasser: SHIGEMORI, Hisanori, NIINO, Yuki, NAKAGAWA, Ryosuke
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION
HEAT EXCHANGE IN GENERAL
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODS OF STEAM GENERATION
STEAM BOILERS
STEAM GENERATION
WEAPONS
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creator SHIGEMORI, Hisanori
NIINO, Yuki
NAKAGAWA, Ryosuke
description A boiler comprising (1) : a header (7) through which a heat medium flows; a stub tube (8) branched from the header and having a base end part (8a) connected to the header (7) ; and a heat transfer tube (9) connected to a tip part (8b) of the stub tube (8), through which the heat medium from the header flows, wherein the stub tube (8) has a thickness thicker than that of the heat transfer tube (9), and wherein an outer diameter of the stub tube (8) is larger than that of the heat transfer tube (9), and an inner diameter of the stub tube (8) is smaller than that of the heat transfer tube (9); to provide a stub tube having extended lifespan while suppressing an increase in a diameter of the stub tube as compared to the case in which the stub tube has the same inner diameter as a heat transfer tube.
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subjects BLASTING
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION
HEAT EXCHANGE IN GENERAL
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODS OF STEAM GENERATION
STEAM BOILERS
STEAM GENERATION
WEAPONS
title Stub tube and boiler
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