Inlet water filtering device for water conservancy water pump

Abstract

A water inlet filtering device for a water conservancy water pump comprises a water absorption part, a water outlet part, a water inlet pipe and a water outlet pipe, the first precipitation part is communicated with the water absorption part, and a dirt collection box is arranged on the side wall of the first precipitation part; the second precipitation part is communicated with the first precipitation part, and the bottom of the second precipitation part is lower than the first precipitation part; the water retaining part is communicated with the side wall of the lower part of the second precipitation part, and the water retaining part is communicated with the water pump. According to the device, aquatic plants are smashed through the cutting blade, sundries are collected through the stirring fan and the dirt collecting box, water is filtered and adsorbed again through the filtering stone, large particles and mud finally entering the water pump are reduced, the probability of damage to the water pump is reduced before the device is installed on the water pump, and the device is suitable for water pumping of the water conservancy project.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy pumps, and more specifically, to an inlet filtering device for a water conservancy pump. Background Art

[0002] When a pump is working, especially a pump in a water conservancy project, due to excessive waterweeds and sundries in the river water, an inlet filtering device needs to be installed to prevent foreign objects from blocking the pump.

[0003] The patent with the publication number of CN212454990U discloses an inlet filtering device for a water conservancy pump, which includes a filtering box. An inlet pipe and an outlet pipe are respectively arranged at both ends of the filtering box. A filter screen is arranged at one end of the filtering box close to the outlet pipe. A rotating shaft is arranged at one end of the filtering box close to the inlet pipe. A plurality of arc-shaped hooks for shoveling sundries are arranged on the side wall of the rotating shaft around its axis and along its length direction. A discharge port for pouring out sundries is opened on the upper surface of the filtering box. A plurality of guide rods which are offset with the arc-shaped hooks and the top ends of which are attached to the side wall of the rotating shaft are obliquely arranged on the upper surface of the filtering box. The upward side of the guide rod is provided with a blade. One end of the arc-shaped hook is tangent to the inner surface of the filtering box. A driving device for driving the rotating shaft to rotate is arranged on the filtering box.

[0004] However, this patent allows small particle sundries to pass through. When the particle sundries accumulate too much, the pump pipeline will also be blocked, and the anti-blocking effect is poor. Content of the Utility Model

[0005] The utility model aims to provide an inlet filtering device for a water conservancy pump to avoid small particles from entering the pump to overcome the above deficiencies.

[0006] An inlet filtering device for a water conservancy pump includes: a water absorption part, a filter screen is arranged inside the water absorption part, and a cutting blade is arranged above the filter screen; a first sedimentation part, the first sedimentation part is communicated with the water absorption part, and a dirt collection box is arranged on the side wall of the first sedimentation part; a second sedimentation part, the second sedimentation part is communicated with the first sedimentation part, and the bottom of the second sedimentation part is lower than that of the first sedimentation part; a water blocking part, the water blocking part is communicated with the lower side wall of the second sedimentation part, and the water blocking part is communicated with the pump.

[0007] Further, the water absorption part further includes an inlet pipe and a connecting pipe. The inlet pipe is arranged at the bottom of the connecting pipe, and the filter screen is arranged at the bottom of the connecting pipe.

[0008] Further, a plurality of vertical water inlet holes are arranged on the side wall of the inlet pipe, a plurality of horizontal water inlet holes are arranged on the filter screen, and the vertical water inlet holes are arranged below the filter screen.

[0009] Further, a plurality of the cutting blades are arranged on the transmission rod, and the bottom of the cutting blade is attached to the top surface of the filter net.

[0010] Further, the first sedimentation part includes a cylindrical pool, a square pool and a stirring fan. The bottom surface of the cylindrical pool is lower than the bottom surface of the square pool. The stirring fan is arranged in the square pool and is connected to the transmission rod.

[0011] Further, the dirt collection box is slidably connected to the side wall of the square pool, and the dirt collection box is provided with a one-way opening.

[0012] Further, the top of the transmission rod penetrates through the top of the square pool. The transmission rod is connected to the motor, and a protective cover is arranged outside the motor.

[0013] Further, the second sedimentation part includes a falling channel, filter stones and a water passing cage. The water passing cage is arranged on the inner wall of the falling channel, and the filter stones are arranged in the water passing cage.

[0014] Further, a pull-out plate is detachably connected to the bottom of the falling channel, and the pull-out plate is connected to the side wall of the falling channel by bolts.

[0015] Further, the water blocking part is communicated with the side wall of the falling channel. A triangular prism plate is rotatably connected to the inner wall of the water blocking part, and part of the plate wings of the triangular prism plate extend into the falling channel.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] ① The device crushes waterweeds through the cutting blades, collects sundries through the stirring fan and the dirt collection box, and then filters and adsorbs the water again through the filter stones, reducing the large particles and mud finally entering the water pump. Installing this device before the water pump reduces the probability of water pump damage and is applicable to water pumping in water conservancy projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0019] Figure 1 is an overall structural schematic diagram of an intake filtering device for a water conservancy water pump.

[0020] Figure 2 is a sectional view of an intake filtering device for a water conservancy water pump.

[0021] Figure 3 is a schematic diagram of the dirt collection box in an intake filtering device for a water conservancy water pump.

[0022] In the figure: 1. Water absorption part; 11. Filter screen; 111. Horizontal water inlet hole; 12. Cutting piece; 13. Water inlet pipe; 131. Vertical water inlet hole; 14. Connecting pipe; 2. First sedimentation part; 21. Cylindrical pool; 22. Square pool; 23. Stirring fan; 3. Sewage collection box; 4. Second sedimentation part; 41. Falling channel; 411. Drawer board; 42. Filter stone; 43. Water passing cage; 5. Water blocking part; 51. Triangular prism plate; 6. Transmission rod; 7. Motor; 8. Protective cover. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] As Figure 1 , Figure 2 shown, an inlet filtering device for a water conservancy water pump includes: a water absorption part 1, a filter screen 11 is arranged inside the water absorption part 1, and a cutting piece 12 is arranged above the filter screen 11; a first sedimentation part 2, the first sedimentation part 2 is communicated with the water absorption part 1, and a sewage collection box 3 is arranged on the side wall of the first sedimentation part 2; a second sedimentation part 4, the second sedimentation part 4 is communicated with the first sedimentation part 2, and the bottom of the second sedimentation part 4 is lower than that of the first sedimentation part 2; a water blocking part 5, the water blocking part 5 is communicated with the lower side wall of the second sedimentation part 4, and the water blocking part 5 is communicated with the water pump.

[0025] The water absorption part 1 further includes a water inlet pipe 13 and a connecting pipe 14. The water inlet pipe 13 is arranged at the bottom of the connecting pipe 14, and the filter screen 11 is arranged at the bottom of the connecting pipe 14. When in use, the water inlet pipe 13 and the connecting pipe 14 are vertically placed into the water.

[0026] A plurality of vertical water inlet holes 131 are arranged on the side wall of the water inlet pipe 13. The vertical water inlet holes 131 can intercept larger water debris on the surface, and some horizontally floating waterweeds can also be intercepted by the vertical water inlet holes 131. The vertical water inlet holes 131 are arranged below the filter screen 11. When the water debris passes through the vertical water inlet holes 131 and enters the filter screen 11, a plurality of horizontal water inlet holes 111 are arranged on the filter screen 11. The horizontal water inlet holes 111 and the vertical water inlet holes cooperate to intercept most of the waterweeds so that they cannot continue to move upward in the water inlet pipe 13.

[0027] When some aquatic plants pass through the filter screen 11 and come into contact with the cutting blades 12, several cutting blades 12 are arranged on the transmission rod 6, and the bottom of the cutting blades 12 is attached to the top surface of the filter screen 11. The transmission rod 6 drives the cutting blades 12 to rotate along the upper surface of the filter screen 11. When the aquatic plants pass through the horizontal water inlet holes 111 and are rotated by the cutting blades 12, the aquatic plants are cut into particles. The small particles are convenient for subsequent processing, can effectively prevent the aquatic plants from entangling other components, and make the water pump pump water more smoothly.

[0028] The first precipitation part 2 includes a cylindrical pool 21, a square pool 22 and a stirring fan 23. The bottom surface of the cylindrical pool 21 is lower than the bottom surface of the square pool 22. The stirring fan 23 is arranged in the square pool 22 and is connected to the transmission rod 6. The cylindrical pool 21 is screwed to the top of the connecting pipe 14. The bottom area of the square pool 22 is larger than the top area of the cylindrical pool 21. Water flows from the connecting pipe 14 to the cylindrical pool 21 and then to the square pool 22. The increased space causes the impact force of the water flow to slow down. Some particles settle at the bottom of the cylindrical pool 21 under the action of gravity. The stirring fan 23 is located at the junction of the cylindrical pool 21 and the square pool 22. After the stirring fan 23 is started, a vortex is formed in the cylindrical pool 21 and the square pool 22. The debris particles are attached to the inner wall of the cylindrical pool 21 under the rotation of the vortex, and some debris particles enter the dirt collection box 3.

[0029] As Figure 3 shown, the dirt collection box 3 is slidably connected to the side wall of the square pool 22, and the dirt collection box 3 is provided with a one-way opening. The opening direction of the dirt collection box 3 is opposite to the vortex direction. The vortex drives the debris into the dirt collection box 3. The side wall of the dirt collection box 3 is provided with a fine mesh. The fine mesh intercepts the debris particles but allows the water to pass through smoothly. When the water pump is overhauled, the cylindrical pool 21 is removed, and then the dirt collection box 3 is removed for cleaning or replacement.

[0030] The top of the transmission rod 6 penetrates through the top of the square pool 22. The transmission rod 6 is connected to the motor 7. The motor 7 drives the transmission rod 6 to rotate, further causing the stirring fan 23 and the cutting blades 12 to rotate together. The motor 7 has waterproof performance, and a protective cover 8 is arranged outside the motor 7. The protective cover 8 prevents the motor 7 from being interfered by aquatic plants or fish and affecting the working performance.

[0031] The water passing through the square pool 22 enters the second precipitation part 4. The second precipitation part 4 includes a falling channel 41, filter stones 42 and a water passing cage 43. The water passing cage 43 is arranged on the inner wall of the falling channel 41, and the filter stones 42 are arranged in the water passing cage 43. The falling channel 41 is in a "7" shape, and the second half of the falling channel 41 is a vertical falling section. The water flow accelerates in the falling channel 41. The water passing cage 43 is clamped in the falling channel 41. When the water is filtered, it passes through the filter stones 42 and the water passing cage 43. The filter stones 42 adsorb some impurities. The falling channel 41 uses gravity to accelerate the water flow, and can quickly adsorb and filter the water.

[0032] A draw-out plate 411 is detachably connected to the bottom of the falling channel 41. The draw-out plate 411 can penetrate through the two side walls of the falling channel 41, and the draw-out plate 411 is connected to the side wall of the falling channel 41 by bolts. The draw-out plate 411 is located below the water retaining part 5, and the water passing cage 43 is located above the water retaining part 5. To facilitate the cleaning of the sediment of the filtering stones 42 particles falling and a small part of the particles passing through the water passing plate, the sediment can be cleaned after the draw-out plate 411 is pulled out.

[0033] The water retaining part 5 is communicated with the side wall of the falling channel 41, and a triangular prism plate 51 is rotatably connected to the inner wall of the water retaining part 5. A part of the plate wing of the triangular prism plate 51 extends into the falling channel 41. During the pumping operation, under the impact of the water flow, the triangular prism plate 51 rotates in a direction away from the falling channel 41, and the particles with smaller weight return to the falling channel 41 to precipitate during the rotation of the triangular prism plate 51, thereby reducing the entry of small particles into the water pump.

[0034] This device crushes aquatic plants through the cutting blade 12, collects sundries through the stirring fan 23 and the dirt collection box 3, and then filters and adsorbs the water again through the filtering stones 42, reducing the large particles and mud finally entering the water pump. Installing this device before the water pump reduces the probability of water pump damage and is applicable to water pumping in water conservancy projects.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An inlet filtering device for a water conservancy pump, characterized in that, Comprising: A water absorption part (1), a filter screen (11) is arranged inside the water absorption part (1), and a cutting blade (12) is arranged above the filter screen (11); A first precipitation part (2), the first precipitation part (2) is communicated with the water absorption part (1), and a dirt collection box (3) is arranged on the side wall of the first precipitation part (2); A second precipitation part (4), the second precipitation part (4) is communicated with the first precipitation part (2), and the bottom of the second precipitation part (4) is lower than that of the first precipitation part (2); A water blocking part (5), the water blocking part (5) is communicated with the lower side wall of the second precipitation part (4), and the water blocking part (5) is communicated with a water pump.

2. The inlet filtering device for a water conservancy water pump according to claim 1, wherein: The water absorption part (1) further includes a water inlet pipe (13) and a connecting pipe (14), the water inlet pipe (13) is arranged at the bottom of the connecting pipe (14), and the filter screen (11) is arranged at the bottom of the connecting pipe (14).

3. The inlet filtering device for a water conservancy water pump according to claim 2, characterized in that: A plurality of vertical water inlet holes (131) are arranged on the side wall of the water inlet pipe (13), a plurality of horizontal water inlet holes (111) are arranged on the filter screen (11), and the vertical water inlet holes (131) are arranged below the filter screen (11).

4. The inlet filtering device for a water conservancy water pump according to claim 3, characterized in that: A plurality of the cutting blades (12) are arranged on a transmission rod (6), and the bottom of the cutting blade (12) is attached to the top surface of the filter screen (11).

5. The inlet filtering device for a water conservancy water pump according to claim 4, characterized in that: The first precipitation part (2) includes a cylindrical pool (21), a square pool (22) and a stirring fan (23), the bottom surface of the cylindrical pool (21) is lower than the bottom surface of the square pool (22), the stirring fan (23) is arranged in the square pool (22), and the stirring fan (23) is connected to the transmission rod (6).

6. The water inlet filtering device for a water conservancy water pump according to claim 5, wherein: The dirt collection box (3) is slidably connected to the side wall of the square pool (22), and the dirt collection box (3) is provided with a one-way opening.

7. The inlet filtering device for a water conservancy pump according to claim 6, characterized in that: The top of the transmission rod (6) penetrates through the top of the square pool (22), the transmission rod (6) is connected to a motor (7), and a protective cover (8) is arranged outside the motor (7).

8. The intake filtering device for a water conservancy pump according to claim 7, characterized in that: The second precipitation part (4) includes a falling channel (41), filter stones (42) and a water passing cage (43), the water passing cage (43) is arranged on the inner wall of the falling channel (41), and the filter stones (42) are arranged in the water passing cage (43).

9. The inlet filtering device for a water conservancy water pump according to claim 8, characterized in that: The bottom of the falling channel (41) is detachably connected with a pull-out plate (411), and the pull-out plate (411) is connected to the side wall of the falling channel (41) through bolts.

10. The inlet filtering device for a water conservancy water pump according to claim 9, characterized in that: The water blocking part (5) is communicated with the side wall of the falling channel (41), a triangular prism plate (51) is rotatably connected to the inner wall of the water blocking part (5), and part of the plate wings of the triangular prism plate (51) extend into the falling channel (41).

Images