TH58966B - Flow structures related to the flow of the liquid to be measured. And pressure difference measurement in a servo type volumetric flow meter. - Google Patents

Abstract

One differential pressure sensing path (71) and another differential pressure sensing path (72) are provided at specified distances in the longitudinal direction. In addition, one differential pressure sensing path (71) is provided to connect directly in front of the continuity center (70) of the second inlet path (67) and the first inlet path (43). In addition, another differential pressure sensing path (72) is provided to connect directly behind the continuity center (66) of the first outlet path (44). One differential pressure sensing path (71) and another differential pressure sensing path (72) are provided at specified distances in the longitudinal direction. In addition, one differential pressure sensing path (71) is provided to connect directly in front of the continuity center (70) of the second inlet path (67) and the first inlet path (43). In addition, another differential pressure sensing path (72) is provided to connect directly behind the continuity center (66) of the first outlet path (44). Another line (72) is positioned to connect directly behind the continuation center (66) of the first outflow path (44).

Claims (2)

Revised June 14, 2017 1. The flow path structure related to the flow of the fluid to be measured and the measurement of differential pressure in a servo volumetric flow meter consists of: Assuming the axial direction of the rotor shaft is longitudinal, the horizontal direction perpendicular to the axial direction of the rotor shaft is the horizontal direction, and the vertical direction perpendicular to the axial direction of the rotor shaft is the vertical direction; the outlet and inlet ports of the fluid to be measured are provided in the measuring chamber at the top and bottom, respectively; the connection between the first and second rotors is this rotor shaft; the first outlet path extends axially and is provided in the main body of the instrument housing to be continuous with the measured fluid outlet port, located at the top; the first inlet path extends axially and is provided in the main body of the instrument housing to be continuous with the measured fluid inlet port, located at the bottom; the second outlet path extends perpendicular to the axial direction and is provided in the main body of the instrument housing. To be continuous with the first outlet path of the first outlet path and the first inlet path, which are parallel to each other; the second inlet path extends perpendicularly to be continuous with the first inlet path and parallel to the second outlet path, which is provided in the main body of the instrument housing; one path of the differential pressure sensing connection path is provided in the main body of the instrument housing, with one end open to the first inlet path at a position between the center of continuity which coincides with the center of the first inlet path and the center of the second inlet path and the inlet port of the liquid to be measured, and extends without overlapping the second inlet path; another path of the differential pressure sensing connection path, which is provided in the main body of the instrument housing, has one end open to the first outlet path at a position far from the outlet port of the liquid to be measured relative to the center of continuity which coincides with the center of the first outlet path and the center of the second outlet path, and extends without overlapping the second outlet path and is parallel to the first differential pressure sensing connection path; and the differential pressure sensing section is provided in the main body of the instrument housing to be continuous with... The other end of the pathway connects the first differential pressure measurement path, and the other end of the pathway connects the other differential pressure measurement path. 1. The flow path structure related to the flow of the fluid to be measured and the differential pressure measurement in a Sower type volumetric flow meter consists of: assuming the axial direction of the rotor shaft is longitudinal; the outlet and inlet ports of the fluid to be measured are provided in the measuring chamber at the top and bottom, respectively; the connection between the first and second rotors is made up of this rotor shaft; the first outlet path extends axially and is provided in the main body of the instrument housing to be continuous with the measured fluid outlet port located at the top; the first outlet path extends axially and is provided in the main body of the instrument housing to be continuous with the measured fluid inlet port located at the bottom; the second outlet path extends perpendicular to the axial direction and is provided in the main body of the instrument housing to be continuous with the first outlet path and the first inlet path, which are parallel to each other; the second inlet path extends perpendicularly to be continuous with the first inlet path and parallel with the second outlet path, which is provided in the main body of the instrument housing; and one path of the differential pressure measurement connection. The differential pressure sensing pathway is constructed within the main body of the instrument housing, with one end open to the first inlet pathway located between the center of continuity of the first and second inlet pathways and the inlet port of the liquid to be measured, and extends without overlapping the second inlet pathway; another differential pressure sensing pathway, also constructed within the main body of the instrument housing, has one end open to the first outlet pathway located far from the outlet port of the liquid to be measured relative to the center of continuity of the first and second outlet pathways, and extends without overlapping the second outlet pathway and parallel to the first differential pressure sensing pathway; and the differential pressure sensing unit is constructed within the main body of the instrument housing, continuous with the other end of the first differential pressure sensing pathway and with the other end of the other differential pressure sensing pathway. 2. Flow path structures relating to the flow of the fluid to be measured and the differential pressure measurement in a servo volumetric flow meter. According to claim 1 of the invention, the second outlet and second inlet flow paths are extended to the left or right; and one differential pressure sensing path and another differential pressure sensing path are extended downward or upward.