FIELD: physics.
SUBSTANCE: invention relates to engineering physics, namely to measurement of process parameters, can be used to determine mass flow rate, degree of dryness and other parameters of wet steam in steam pipelines of its sources and consumers. Device for determining mass flow rate and degree of dryness of wet steam comprises: steam line; in the steam pipeline, the probe cylinder with the pressure tube on the side of the flow movement, with the static pressure tube and with the pressure tube towards the flow direction; a pressure difference meter between the pressure tube on the flow side and the static pressure tube; static pressure meter in static pressure tube; a pressure difference meter between the static pressure tube and the pressure tube towards the flow direction; controller for calculating mass flow rate and degree of dryness; in order to increase accuracy, the outside of the probe cylinder comprises: connected to pressure tube on the side of flow movement parallel to steam pipeline axis narrow flat chamber with pressure receiver on controlled flow side; connected to static pressure pipe parallel to steam pipeline axis narrow flat chamber with static pressure receiver in flat bottom part parallel to steam pipeline axis; connected to pressure tube in direction of flow movement parallel to steam pipeline axis narrow flat chamber with pressure receiver towards controlled flow direction; plate with window combined with bottom part of narrow flat chamber of static pressure tube, installed between narrow flat chamber of pressure tube from side of flow movement and narrow flat chamber of pressure tube towards direction of flow.
EFFECT: technical result is providing significantly less disturbance of the controlled flow in the zone of pressure receptors, which provides higher accuracy of determination of mass flow rate and degree of dryness.
1 cl, 1 dwg
