Flow meter having a sensor casing arranged coaxially with a measurement tube
First Claim
1. A flow meter for a liquid, comprising:
- a measuring tube defined by a closed cylindrical surface, and comprising an inflow connection and an outflow connection;
a measuring unit rotatably mounted in the measuring tube, and enclosed by the closed cylindrical surface,a magnet disposed in the measuring unit;
a sensor casing detachably connected to, and coaxially arranged with, the measuring tube,wherein the sensor casing is rotatable around the closed cylindrical surface of the measuring tube about a longitudinal axis of the measuring tube;
a sensor disposed in the sensor casing;
wherein the sensor casing comprises a longitudinal recess corresponding to the closed cylindrical surface of the measuring tube, and coaxially arranged with the measuring tube;
a clamping element configured to non-rotatably fix the sensor casing at any angular position relative to the measuring tube;
wherein the sensor responds to revolutions of the measuring unit to determine a quantity of the liquid flowing through the measuring tube;
wherein the measuring tube comprises a first circumferential flange associated with the inlet connection, and a second circumferential flange associated with the outlet connection;
wherein the sensor casing is disposed on the measuring tube in a region between the first circumferential flange and the second circumferential flange; and
wherein an axial rotation of the sensor casing about the measuring tube is restricted by the first circumferential flange and the second circumferential flange;
wherein, from an area where the measuring unit is mounted, the closed cylindrical surface of the measuring tube expands as a conical shape in both directions towards the first circumferential flange and the second circumferential flange; and
wherein a thickness of a wall of the measuring tube in the area where the measuring unit is mounted is less than a thickness of a wall of the measuring tube in a first area adjacent to the first circumferential flange and a second area adjacent to the second circumferential flange.
2 Assignments
0 Petitions
Accused Products
Abstract
A flow meter (10) for liquids, the meter having a measurement casing (12) with a first connection (20) and a second connection (22), a measuring unit (24) pivoted to the measurement casing (12), with a sensor element (26), a sensor casing (14) that can be coupled to the measurement casing (12) and which partially encompasses the measurement casing, with a sensor (28) that responds to the sensor element (26) for determining the quantity of liquid flowing through the measurement casing. To facilitate easy assembly and subsequent adjustment of the sensor casing (14) with a fixed measurement casing (12), the measurement casing (12) is designed as a measuring tube and has a closed cylindrical surface (38), and that the sensor casing (14) has a recess (46) matched to the cylindrical surface (38) and is arranged coaxially with the measurement casing (12) and pivoted to the latter in the circumferential direction.
19 Citations
14 Claims
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1. A flow meter for a liquid, comprising:
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a measuring tube defined by a closed cylindrical surface, and comprising an inflow connection and an outflow connection; a measuring unit rotatably mounted in the measuring tube, and enclosed by the closed cylindrical surface, a magnet disposed in the measuring unit; a sensor casing detachably connected to, and coaxially arranged with, the measuring tube, wherein the sensor casing is rotatable around the closed cylindrical surface of the measuring tube about a longitudinal axis of the measuring tube; a sensor disposed in the sensor casing; wherein the sensor casing comprises a longitudinal recess corresponding to the closed cylindrical surface of the measuring tube, and coaxially arranged with the measuring tube; a clamping element configured to non-rotatably fix the sensor casing at any angular position relative to the measuring tube; wherein the sensor responds to revolutions of the measuring unit to determine a quantity of the liquid flowing through the measuring tube; wherein the measuring tube comprises a first circumferential flange associated with the inlet connection, and a second circumferential flange associated with the outlet connection; wherein the sensor casing is disposed on the measuring tube in a region between the first circumferential flange and the second circumferential flange; and wherein an axial rotation of the sensor casing about the measuring tube is restricted by the first circumferential flange and the second circumferential flange; wherein, from an area where the measuring unit is mounted, the closed cylindrical surface of the measuring tube expands as a conical shape in both directions towards the first circumferential flange and the second circumferential flange; and wherein a thickness of a wall of the measuring tube in the area where the measuring unit is mounted is less than a thickness of a wall of the measuring tube in a first area adjacent to the first circumferential flange and a second area adjacent to the second circumferential flange. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification