SWIRL FLOW MEASUREMENT SENSOR AND SWIRL FLOW MEASUREMENT METER FOR MEASURING THE FLOW VELOCITY OF A FLUID

摘要

The invention relates to a swirl flow meter for measuring the flow velocity of a fluid flowing in a measurement pipe and to a swirl flow sensor for the swirl flow meter. The swirl flow sensor (1) has a main housing body (2) having a center axis (A). A shoulder (2a) having a contact surface (2c) is formed on a connecting section of the main housing body. A membrane (3) is arranged in a plane of the shoulder (2a), an edge of which is positioned over the contact surface (2c) and is axially spaced from the contact surface. The swirl flow sensor also has a flange-shaped supporting device (8), which has a radial edge segment (8c) and a cylindrical axial segment (8d), wherein the radial edge segment (8c) lies against the shoulder (2a) of the main body (2) by means of a surface (8e) of the radial edge segment and the cylindrical axial segment (8d) extends parallel to the center axis (A), such that the membrane (3) is supported against the supporting device (8) when a predetermined pressure is applied to the membrane.