Three-dimensional automatic water flow velocity measuring instrument for rivers and canals
A technology for automatically finding the direction of water flow, applied in the direction of fluid velocity measurement, velocity/acceleration/impact measurement, measuring devices, etc., which can solve the problem of reducing the measurement accuracy of water flow velocity measurement, the difficulty of ensuring that the flow velocity sensor is always parallel to the direction of water flow, and the propeller rotates Reduce the force and other problems, achieve the effect of simple and practical structure, low cost, and avoid measurement errors
Active Publication Date: 2017-07-14
含山县长通食品制造有限公司
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Problems solved by technology
However, the flow rate sensors in the various contact-type water flow velocity measuring instruments in the prior art only have the function of automatically finding the direction of water flow in the horizontal direction, and do not have the function of automatically finding the direction of water flow in the vertical direction. Parallel, which reduces the force of the water flow to push the propeller at the front end of the flow velocity sensor to rotate, reducing the measurement accuracy of the flow velocity measurement
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[0010] exist figure 1 Among them, the flow rate sensor 8 (more precisely, the reed switch on the flow rate sensor 8 ) is electrically connected to the flow rate measurement system 10 through a wire 9 . The vertical rotating shaft 7 passes through the rotating hole on the flow sensor 8 and leaves an active gap. Swivel 6 is installed on the vertical rotating shaft 7. Vertical rotating shaft 7 is installed on the frame 2, and its installation mode is fixed with screw or plug-in type. The horizontal rotating shaft 3 passes through the side frames of the frame 1 and the frame 2 (the two sides are symmetrical). The diameter of the horizontal rotating shaft 3 is slightly smaller than the diameter of the side rotating hole on the frame 2 to ensure that the frame 2 can rotate freely on the horizontal rotating shaft 3 . The horizontal rotating shaft 3 and the left nut 4 are tightened, and the horizontal rotating shaft 3 is fixed on the side frame of the frame 1; the right nut 5 is ti...
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The invention discloses a three-dimensional canal water flow velocity measuring instrument for automatically finding the direction of water flow. A flow velocity sensor 8 is electrically connected to a flow velocity measurement system 10. A vertical rotating shaft 7 passes through the flow velocity sensor 8 with a movable gap. The vertical rotating shaft 7 is installed on On the frame 2, the horizontal rotating shaft 3 passes through the side frame of the frame 1 and the frame 2, and there is a rotatable gap between the horizontal rotating shaft 3 and the frame 2, and the frame 1 is installed on the supporting mechanism. It solves the measurement error problem caused by the inconsistency between the flow sensor 8 and the water flow direction caused by various reasons when the canal water flow velocity measuring instrument in the prior art is in use. It can be used in various river canal water flow velocity measuring instruments or connected to the Internet of Things water regime monitoring system to improve the measurement accuracy of water flow velocity in canals.
Description
technical field [0001] The invention relates to a liquid flow velocity measuring instrument, in particular to a three-dimensional water velocity measuring instrument for automatically finding the direction of water flow. Background technique [0002] The measurement of water flow velocity in rivers and canals is an important test content for water conservancy, factories and mines, environmental monitoring, hydrogeological survey, agriculture and other departments to monitor and manage the environment. Existing water flow velocity measuring instruments in contact with river water include propeller type and rotary cup type according to the difference of water velocity sensors, but the mainstream is still the propeller type. The physical principle of the propeller type flow rate sensor is: the water pushes the propeller blades to rotate, and the rotation of the propeller blades drives the rotor to rotate through the connection mechanism, which drives the two magnets on the roto...
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IPC IPC(8): G01P5/00
Inventor 赵杰王吉华
Owner 含山县长通食品制造有限公司