Horizontal axis type sediment runoff gauge
A sediment and runoff technology, which is applied in the application of electromagnetic flowmeters to detect fluid flow, volume/mass flow generated by electromagnetic effects, etc., can solve the problems of high cost, large starting and running flow, incompatibility, etc., and achieves simple structure, The effect of saving manpower and equipment resources and improving the accuracy of monitoring
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Embodiment 1
[0042] as attached Figure 1~3 As shown, the horizontal axis sediment runoff meter of the present invention includes a casing 31 provided with a water inlet 34 and a water outlet 35 and an impeller 32 arranged in the casing 31, and the casing 31 is provided with a measuring instrument. The sensing device 33 of the number of rotations of the impeller 32; the impeller 32 is arranged in the housing 31 through the bearing 36, and fan blades are uniformly arranged on the impeller; The magnetic induction body 33-1 on 32 and the magnetic induction sensor 33-2 corresponding to the magnetic induction body 33-1 are arranged on the housing 31, and the width D1 of the water inlet 34 is smaller than the width D2 of the fan blade.
[0043] The number of the fan blades is 12, which are evenly arranged outside the circumference of the bearing 36 . The center of the cavity of the housing 31 is provided with a bearing seat 37, and the bearing 36 is arranged on the bearing seat 37; the center of ...
Embodiment 2~5
[0048] The devices in Examples 2-5 are basically the same as those in Example 1, the only difference being the length and width of the fan blades, and the accuracy of the measured muddy water runoff was specifically monitored. The monitored water was added with 20% solid sediment, and the specific results are shown in Table 1. Where L1 is the length of the housing cavity, L2 is the length of the fan blade, D2 is the width of the fan blade, and R is the radius of the housing cavity.
[0049]
[0050] According to the above experimental data, commercially available flowmeters cannot complete the monitoring due to the blockage of sediment; by adopting embodiments 1 to 5 of the present invention, the monitoring of sediment can be realized, and the accuracy can reach more than 85%; by optimizing the housing The proportional relationship between the length of the cavity, the length of the fan blade, the width of the fan blade and the radius of the housing cavity can further impro...
Embodiment 6
[0052] as attached Figure 4 As shown, the horizontal axis sediment runoff meter of the present invention includes a casing 31 provided with a water inlet 34 and a water outlet 35 and an impeller 32 arranged in the casing 31, and the casing 31 is provided with a measuring instrument. The sensing device 33 of the number of rotations of the impeller 32; the impeller 32 is arranged in the housing 31 through the bearing 36, and fan blades are uniformly arranged on the impeller; the sensing device 33 includes a The magnetic induction body 33 - 1 on the top and the magnetic induction sensor 33 - 2 corresponding to the magnetic induction body 33 - 1 arranged on the housing 31 , the width of the water inlet 34 is smaller than the width of the fan blade. The water inlet 34 is provided with several thin tubes 39 with a diameter of 1-2 cm. A buffer pipe 38 is disposed below the housing 31 , and the water outlet 35 is disposed on a side of the buffer pipe 38 .
[0053] The number of the...
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