FLANGE FIXING STRUCTURE

摘要

A flange fixing structure is provided that fixes flange parts respectively provided to two pipe conduits by means of a fixture in a butting manner via a gasket. In this flange fixing structure, when an effective length of the fixture is denoted by L0, a linear expansion coefficient of the fixture is denoted by α0, thicknesses of n (where n is an integer of 1 or more) members held by the fixture are respectively denoted by t1 to tn, and linear expansion coefficients of the n members are respectively denoted by α1 to αn, a product L0α0 of the effective length L0 of the fixture and the linear expansion coefficient α0 of the fixture is substantially equal to a sum Σtiαi (i=1 to n) of products of the respective thicknesses t1 to tn and the respective linear expansion coefficients α1 to αn.

主权项

1. A flange fixing structure for fixing flange parts respectively provided to two pipe conduits by means of a fixture in a butting manner via a gasket,
wherein when an effective length of the fixture is denoted by L0, a linear expansion coefficient of the fixture is denoted by α0, thicknesses of n (where n is an integer of 1 or more) members held by the fixture are respectively denoted by t1 to tn, and linear expansion coefficients of the n members are respectively denoted by α1 to αn, a product L0α0 of the effective length L0 of the fixture and the linear expansion coefficient α0 of the fixture is made substantially equal to a sum Σtiαi (i=1 to n) of products of the respective thicknesses t1 to tn and the respective linear expansion coefficients α1 to αn.