Method for measuring flood discharge atomization rainfall capacity

[0046] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.

[0047] Specifically, the method of the present invention for measuring and calculating the rainfall of flood discharge atomization includes the following steps:

[0048] (M1) Choose a typical rainwater collection area at the fogging site;

[0049] (M2) Excavate a 1m×1m pit on the underlying surface of the rainwater collection area according to the existing slope;

[0050] (M3) Manufacture a device for measuring and calculating the rainfall of the flood discharge atomization according to the slope;

[0051] (M4) Install a device for measuring and calculating the rainfall of the flood discharge atomization in the tank;

[0052] (M5) Perform rainfall measurement.

[0053] The above-mentioned device for measuring and calculating the rainfall of the flood discharge atomization includes the following parts: switchable top cover 1, rain trough 2, rain collection pipe 3, pumping system 5, water level sensor 4;

[0054] The above rainwater trough 2 includes: four side walls and a bottom surface, and the four side walls are hermetically connected to each other and hermetically connected to the bottom plate to form a box with an upper opening;

[0055] The above-mentioned switchable top cover 1 includes 5 strip-shaped tile groups, and each strip-shaped tile group includes: a strip-shaped tile 12, a tile rotating shaft 13, a bearing 15, and a servo motor 11;

[0056] The above-mentioned strip tile 12 has a length of 1.0m and a width of 30cm;

[0057] The above-mentioned tile rotating shaft 13 is 1.10m long, has a square section, and the side length of the section is 1cm, made of aluminum alloy;

[0058] The above-mentioned strip tiles 12 are a plurality of 1/3 cylindrical arc surfaces welded to each other, the radius of the cylindrical arc surface is 10-15cm, and the joint edges of every two arcs are provided with a square hole supporting tongue 14 along the width direction at 17.5cm. , The square hole support tongue 14 is provided with a square hole, the side length of the square hole is 1cm, for the tile rotation shaft 13 to pass through;

[0059] Each of the above-mentioned strip-shaped tiles is overlapped back and forth, and the overlap width is 10cm;

[0060] Both ends of the above-mentioned tile rotating shaft 13 are fixed on the inner ring of the bearing 15, and one end passes through the bearing 15 and is fixedly connected to the rotating shaft of the servo motor 11;

[0061] The outer ring of the above-mentioned bearing 15 is fixed on the side wall of the rainwater trough through the support foot 21; the fixed support foot 21 extends upward to a height of 13 cm; the inner ring of the bearing 15 is fixedly connected to the tile rotation shaft 13;

[0062] The above-mentioned servo motor 11 rotating shaft is fixedly connected to the tile rotating shaft 13, and the servo motor 11 body is fixedly connected to the outer ring of the bearing 15, and its torque is not less than 50Nm;

[0063] The above-mentioned water level sensor 4 is placed in the rainwater trough 2, and the sampling frequency is 2 Hz;

[0064] The above-mentioned rain collecting pipe is a PVC pipe with a diameter of 12 cm, one end is connected to the bottom of rain collecting trough 2, extends into the observation room, communicates with the pumping system 5 in the observation room, and the water flows through the pumping system 5 to discharge tail water downstream;

[0065] A computer control unit 6 and a servo motor control unit 7 are arranged in the above observation room, and the computer control unit 6 is connected to the servo motor control unit 7 and the pumping system 5 through a signal line. The above (M3) the device for measuring and calculating the rainfall of the flood discharge atomization based on the slope refers to: measuring the elevation of the four corners of the installation position on the spot, obtaining the height difference between the upstream side and the downstream side of 50cm, and collecting the rain from the device for measuring the rainfall of the flood discharge atomization The upstream side wall and the downstream side wall of the trough are set with the same height difference of 50cm so that the switchable top cover 1 has the same slope as the original rainwater collection area.

[0066] The above-mentioned (M4) installation of the device for measuring the rainfall of the flood discharge and atomization in the tank means: the device for measuring the rainfall of the flood discharge and atomization is installed according to the upstream side wall and the downstream side; the connection set Rain pipe 3 and pumping system 5.

[0067] The above (M5) rainfall measurement includes the following steps:

[0068] (1) The computer first sets the opening angle of the 7-switch top cover 1 from the closed state to the vertical state through the servo motor control unit, and the opening action time is 0.1s;

[0069] (2) Set the opening and closing cycle of the switchable top cover 1 to 10s, open for 5s and close for 5s every 10s;

[0070] (3) After 2 cycles, the switchable top cover 1 is in the closed state, and the water level sensor 4 measures the water level inside the rainwater trough 2 to calculate the rainfall;

[0071] (4) If the rainfall can be measured, the computer will send a signal to the pumping system 5 to drain the rainwater in the rainwater trough 2 and check the rainfall;

[0072] (5) If the rainfall is greater than the measuring range of the water level sensor 4, shorten the opening time in the cycle to 2s and the closing time to 8s; repeat steps (3)(4);

[0073] (6) If the rainfall is less than the measuring range of the water level sensor 4, repeat steps (3) and (4) until the rainfall value is obtained.