Device for preventing filtering equipment from generating rotational flow

Abstract

According to the device for preventing the filtering equipment from generating the rotational flow, when filtered irrigation water enters the filtering net, the irrigation water entering the filtering net has a certain initial angle due to the action of the spoiler outside the filtering net, and the irrigation water can do circular motion along the surface of the inner wall of the filtering net, so that the filtering equipment is prevented from generating the rotational flow; water can form rotational flow under the combined action of self weight, centripetal force, gravitational attraction and suction force of the water pump, the rotational flow can reduce the water pumping amount of the water pump and increase the suction amount of air, the water pumping efficiency of the water pump is reduced, and in severe cases, the water pump cannot pump water in time due to the fact that the water pump sucks too much air, a water pump motor is burnt out, and the service life of the water pump is prolonged. The brake component is additionally arranged in the filter screen, so that the irrigation water can be effectively prevented from forming rotational flow in the filter screen. The brake component is simple in structure, easy to machine, low in cost and capable of effectively preventing rotational flow, so that the failure rate of the water pump is reduced, the efficiency of the water pump is improved, and normal operation of an irrigation system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of agricultural water-saving irrigation, especially relates to a device for preventing the filtering equipment from generating cyclone. BACKGROUND

[0002] The head of the irrigation system plays a vital role in the whole irrigation system, and the core component of the head of the irrigation system is the filtering equipment. Since the surface water has high impurity content and complex composition, the filter screen of the filtering equipment can remove the impurities in the water, and the spoiler (also known as the disturber) on the filtering equipment performs circular motion around the filter screen with the filter screen axis as the center, separates part of the impurities adhering to the filter screen and pushes them to the water area far away from the filter screen, and the filtered irrigation water is pumped into the irrigation pipeline by the water pump and then irrigates the field. The filtering equipment not only needs to meet the precision requirement of filtration, but also needs to meet the requirement that the water pump can normally pump the filtered irrigation water into the irrigation pipeline. Under the action of the spoiler outside the filter screen, the irrigation water entering the inside of the filter screen has a certain initial angle, and the irrigation water will perform circular motion along the inner wall surface of the filter screen. Under the joint action of the gravity, centripetal force, earth's gravity and suction force of the water pump, the water will form a cyclone, the occurrence of the cyclone will reduce the water pumping capacity of the water pump, increase the air suction amount, reduce the water pumping efficiency of the water pump, accelerate the erosion of the water pump, cause frequent faults, and even burn the water pump motor due to the water pump sucking too much air, so that the water pump cannot be normally started, and the normal operation of irrigation is affected. SUMMARY

[0003] To solve the above problems, the utility model develops a device for preventing the filtering equipment from generating cyclone, which has simple structure, easy processing and low cost, and plays a vital role in the normal operation of the whole irrigation system.

[0004] The utility model discloses a device for preventing the filtering equipment from generating cyclone, which comprises a float, a float rod, a filter screen, a support frame and a water outlet pipe. The support frame is provided with the float rod, and the float is connected with the float rod. The top end of the support frame is provided with a filter screen cover, the upper part of the filter screen cover is provided with a motor cover, the motor cover is internally provided with a motor, the motor is provided with a motor shaft, and the motor shaft is connected with a connecting component. The filter screen is externally provided with a spoiler, and the two ends of the connecting component are connected with the spoiler. The inside of the filter screen is provided with a brake component, which is composed of a brake component one or a brake component two.

[0005] The filter screen is arranged between the upper end and the lower end of the support frame, the upper end of the filter screen is provided with an upper cover plate, the lower end of the filter screen is provided with a lower cover plate, the lower cover plate is connected with the support frame, the lower cover plate is provided with a water outlet, and the water outlet is at least one; the water outlet is connected with a bend, the other end of the bend is connected with a water outlet pipe, according to actual design requirements, the water outlet pipe can be a hard pipe or a soft pipe, or a combination of the hard pipe and the soft pipe, and the other end of the water outlet pipe is connected with a water pump.

[0006] The upper cover plate and the lower cover plate of the filter screen are provided with a framework, the framework can be connected with the upper cover plate, or connected with the lower cover plate, or connected with the filter screen; the braking component one or the braking component two in the filter screen can be connected with the upper cover plate, or connected with the lower cover plate, or connected with the framework.

[0007] The shape of the braking component one can be a polygon, an ellipse, a hollow circle, an S shape, a W shape or a C shape; the shape of the braking component two can be a polyhedron, a special-shaped body, a cylinder, a cone, a prism, a pyramid or an ellipsoid; the braking component one or the braking component two can be arranged at the upper end, the middle or the lower end of the filter screen, or between the upper cover plate and the lower cover plate.

[0008] The braking component one or the braking component two can be an integral type, or a combination of several shapes of braking components, or the braking component one or the braking component two is provided with a hole, and the hole in the braking component can be a special-shaped hole, a polygonal hole, an elliptical hole, a tooth-shaped hole or a conical hole.

[0009] The connection mode of each component of the utility model can be welding, riveting or bolt connection.

[0010] The device for preventing the generation of rotational flow of the filter equipment is simple in structure, easy to process and low in cost, can effectively prevent the generation of rotational flow, thereby reducing the failure rate of the water pump, improving the efficiency of the water pump and ensuring the normal operation of the irrigation system. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a perspective view of the utility model

[0012] Figure 2 It is a front view of the utility model

[0013] Figure 3 It is an internal structure of the utility model Figure 1

[0014] Figure 4 It is an internal structure of the utility model Figure 2

[0015] Figure 5 It is an internal structure of the utility model Figure 3

[0016] Figures 1-5 In the figure, 1 is a float, 2 is a filter screen guard, 3 is an upper cover plate, 4 is a motor guard, 5 is a float rod, 6 is a support frame, 7 is a spoiler, 8 is a filter screen, 9 is a water outlet pipe, 10 is a framework, 11 is a brake component one, 11-1 is a brake component two, 12 is a lower cover plate, 13 is an elbow, 14 is a motor shaft, 15 is a connecting component, 16 is a motor, and 17 is a water outlet. DETAILED DESCRIPTION

[0017] The utility model relates to a device for preventing the filtering equipment from generating cyclone, including float 1, float rod 5, filter screen 8, support frame 6 and water outlet pipe 9, support frame 6 be provided with float rod 5 on it, float 1 is connected with float rod 5, support frame 6's top end is provided with filter screen guard 2, the upper portion of filter screen guard 2 is provided with motor guard 4, and there is motor 16 in motor guard 4, motor 16 is equipped with motor shaft 14, and motor shaft 14 is connected with connecting component 15, filter screen 8 is provided with spoiler 7 outside, and the both ends of connecting component 15 are connected with spoiler 7 respectively, the inside of filter screen 8 is provided with brake component, and brake component is composed of brake component one 11 or brake component two 11-1.

[0018] Filter screen 8 is arranged between the upper end and the lower end of support frame 6, the upper portion of filter screen 8 is provided with upper cover plate 3, the lower portion of filter screen 3 is provided with lower cover plate 12, and lower cover plate 13 is connected with support frame 6, the lower cover plate 12 is equipped with water outlet 17, and the water outlet 17 is at least one, the water outlet 17 is connected with elbow 13, the other end of elbow 13 is connected with water outlet pipe 9, according to actual design needs, water outlet pipe 9 can select hard pipe also can be hose, or hard tube and hose combination, the other end of water outlet pipe 9 is connected with water pump.

[0019] With the increase of the flow of filtering equipment, the technical parameters of filter screen 8 also change accordingly, when the diameter of filter screen 8 is too large, the framework 10 is arranged between the upper cover plate 3 and the lower cover plate 12 of filter screen 8 to reinforce the strength of the upper and lower cover plates, the framework 10 can be connected with the upper cover plate 3, can be connected with the lower cover plate 12, or can be connected with the filter screen 8, the brake component one 11 or brake component two 11-1 in the filter screen 8 can be connected with the upper cover plate 3, or connected with the lower cover plate 12, or connected with the framework 10, the shape of brake component one 11 can be polygon, oval, hollow circle, S shape, W shape or C shape, the shape of brake component two 11-1 can be polyhedron, special-shaped body, cylinder, cone, prism, pyramid or ellipsoid, brake component one 11 or brake component two 11-1 can be arranged on the upper portion, the middle portion, the lower portion of filter screen 8 or between the upper cover plate 3 and the lower cover plate 12.

[0020] The brake component one 11 or the brake component two 11-1 can be integral or combined with several shapes of brake components, and the brake component one or the brake component two can be provided with holes, and the holes of the brake component can be special-shaped holes, polygonal holes, oval holes, tooth-shaped holes or conical holes.

[0021] The connection mode of the components of the utility model can be welding, riveting or bolt connection.

[0022] When the ground water enters the inside of the filter screen 8 from the outside of the filter screen 8, the impurities are intercepted and adhered to the outer surface of the filter screen 8, at this time, the connecting component 15 is driven by the motor shaft 14 and the flow disturber 7 connected therewith, and the flow disturber 7 rotates around the axis of the filter screen 8 as the center and relative to the filter screen 8, so that the impurities can be effectively removed; due to the effect of the flow disturber 7, the irrigating water after being filtered has a certain initial angle when entering the inside of the filter screen 8, and the irrigating water rotates along the inner wall surface of the filter screen 8, and the water forms a vortex under the joint action of gravity, centripetal force, earth's gravity and suction of the water pump, the occurrence of the vortex reduces the water pumping capacity of the water pump, increases the air suction amount, reduces the water pumping efficiency of the water pump, accelerates the erosion of the water pump, causes frequent faults, and seriously, the water pump cannot pump water in time due to too much air suction, and the water pump motor is burned out, so that the water pump cannot be normally started, and the normal operation of irrigation is affected. The brake component one 11 is additionally arranged in the inside of the filter screen 8 to prevent the formation of the vortex, and the vortex problem can be effectively solved through multiple verifications.

[0023] When the local surface water enters the inside of the filter screen 8 from the outside of the filter screen 8, impurities are intercepted by the filter screen 8 and attached to the outer surface of the filter screen 8, at this time, the connecting part 15 is driven by the motor shaft 14 and the spoiler 7 connected thereto, and the connecting part 15 and the spoiler 7 connected thereto make a circular motion relative to the filter screen 8 with the axis of the filter screen 8 as the center, so that the impurities can be effectively removed; due to the effect of the spoiler 7, the irrigating water entering the inside of the filter screen 8 has a certain initial angle, and the irrigating water makes a circular motion along the inner wall surface of the filter screen 8, and the water forms a vortex under the joint action of the gravity, the centripetal force, the earth's gravity and the suction of the pump, the occurrence of the vortex reduces the water pumping capacity of the water pump, increases the air suction amount, reduces the water pumping efficiency of the water pump, accelerates the erosion of the water pump, causes frequent failures, and even causes the water pump to be burned out due to too much air suction of the water pump, so that the water pump cannot be started normally, and the normal operation of irrigation is affected. The brake part two 11-1 is arranged in the inside of the filter screen 8, at this time, the brake part two 11-1 is a hollow cylindrical body, the upper end of the hollow cylindrical body is connected with the upper cover plate 3, the lower end of the hollow cylindrical body is connected with the lower cover plate 12, and holes are arranged on the hollow cylindrical body, when the irrigating water meets the outer wall of the hollow cylindrical body, the vortex is buffered, and the energy is dissipated, when the irrigating water enters the inside of the hollow cylindrical body through the holes on the hollow cylindrical body again, the formation of the vortex is effectively prevented, and the vortex problem can be effectively solved through multiple verifications.

[0024] The device for preventing the vortex of the filtering equipment has the advantages of simple structure, easy processing, low cost, effective prevention of vortex generation, reduction of the failure rate of the water pump, improvement of the efficiency of the water pump and guarantee of the normal operation of the irrigation system.

[0025] The embodiments one or two are only preferred solutions of the utility model, and various modifications or supplements or similar replacements of the described specific embodiments or equivalent replacement of part of the technical features can be made by the person skilled in the art, and all fall within the protection scope of the utility model.

Claims

1. A device for preventing the generation of vortex flow by a filtering device, comprising a float, a float rod, a filtering screen, a support frame and a water outlet pipe, characterized in that: The support frame is provided with a float rod, and a float is connected to the float rod; the top end of the support frame is provided with a filter screen cover, the upper part of the filter screen cover is provided with a motor cover, and the motor cover is internally provided with a motor; the motor is provided with a motor shaft, and the motor shaft is connected to a connecting component; the filter screen is externally provided with a spoiler, and the two ends of the connecting component are respectively connected to the spoiler; the inside of the filter screen is provided with a braking component, and the braking component is composed of a first braking component or a second braking component; The filter screen is arranged between the upper end and the lower end of the support frame, the upper part of the filter screen is provided with an upper cover plate, the lower part of the filter screen is provided with a lower cover plate, and the lower cover plate is connected to the support frame; the lower cover plate is provided with a water outlet, the water outlet is connected to an elbow, the other end of the elbow is connected to an outlet pipe, and the other end of the outlet pipe is connected to a water pump.

2. A device for preventing the generation of a vortex in a filter apparatus according to claim 1, characterized in that: The upper cover plate and the lower cover plate of the filter screen are provided with a framework, and the framework can be connected to the upper cover plate, the lower cover plate or the filter screen.

3. A device for preventing the generation of a vortex in a filter apparatus according to claim 1, characterized in that: The first braking component or the second braking component in the filter screen can be connected to the upper cover plate, the lower cover plate or the framework.

4. A device for preventing the generation of a vortex in a filter apparatus according to claim 3, characterized in that: The shape of the first braking component can be polygonal, oval, hollow circular, S-shaped, W-shaped or C-shaped.

5. A device for preventing the generation of a vortex in a filter apparatus according to claim 3, characterized in that: The shape of the second braking component can be polyhedron, special-shaped body, cylinder, cone, prism, pyramid or ellipsoid.

6. A device for preventing the generation of a vortex in a filter apparatus according to claim 4 or 5, characterised in that: The first braking component or the second braking component can be arranged at the upper part, the middle part or the lower part of the filter screen or between the upper cover plate and the lower cover plate, and the connecting mode of each component can be welding, riveting or bolt connection.

7. A device for preventing the generation of a vortex in a filter apparatus according to claim 6, characterized in that: The first braking component or the second braking component can be integral or a combination of several shapes of braking components, and holes can be arranged on the first braking component or the second braking component, and the holes on the braking component can be special-shaped holes, polygonal holes, oval holes, tooth-shaped holes or conical holes.

8. A device for preventing the generation of a vortex in a filter apparatus according to claim 1, wherein The water outlet on the lower cover plate is at least one.

9. A device for preventing the generation of a vortex in a filter apparatus according to any one of claims 1, 2, 3, 7 or 8, characterised in that, The connecting mode of each component can be welding, riveting or bolt connection.

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