Photovoltaic panel cleaning wastewater recycling and reuse device

Abstract

The present invention discloses a photovoltaic panel cleaning wastewater recycling and reuse device, which relates to the technical field of photovoltaic wastewater recycling, including a liquid supply pipe, wherein a plurality of adjustment components are axially arranged on the outside of the liquid supply pipe, and the adjustment component includes: a bracket fixedly connected to the liquid supply pipe; a nozzle rotatably arranged on the bracket, and a corrugated pipe is fixedly arranged between the liquid inlet end of the nozzle and the liquid supply pipe; a baffle fixedly arranged on the bracket, and the side edges of the baffle and the side edges of the nozzle are both arc-shaped, and the baffle fits the nozzle; the present invention compensates for the flow loss of the liquid medicine suppressed by the increase of the hydrostatic pressure in the deep water area by increasing the aperture, maintains the liquid medicine injection flow rate, avoids the lack of kinetic energy of the liquid medicine injection causing uneven diffusion and reduced treatment efficiency, avoids the fluorine concentration of the effluent water exceeding the standard, and avoids the same aperture in the shallow water area causing excessive jet due to low pressure, so that the medicine floats to the surface and reduces the utilization rate of the liquid medicine.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic wastewater recycling, and particularly to a device for recycling and reusing photovoltaic panel cleaning wastewater. Background Art

[0002] In the treatment process of photovoltaic panel production wastewater, aluminum sulfate is usually used as a coagulant to treat fluoride-containing wastewater. The prepared liquid medicine is added to the wastewater reaction tank through an immersion multi-hole medicine distribution pipe. The medicine distribution pipe usually adopts a medicine distribution hole structure with a fixed aperture. However, the depth of the wastewater does not remain at the same height. This results in an increase in the depth of the medicine distribution hole when the water depth increases. The increase in depth causes a linear increase in the hydrostatic pressure, which significantly inhibits the flow rate of the liquid medicine ejected from the inside of the medicine distribution hole, resulting in insufficient penetration of the liquid medicine in the deep water area and ineffective diffusion of the liquid medicine. Summary of the Invention

[0003] The purpose of the present invention is to provide a device for recycling and reusing photovoltaic panel cleaning wastewater to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A device for recycling and reusing photovoltaic panel cleaning wastewater, including a liquid supply pipe. A number of adjusting components are arranged along the axial direction outside the liquid supply pipe. The adjusting components include: A bracket fixedly connected to the liquid supply pipe; A nozzle rotatably arranged on the bracket. A corrugated pipe is fixedly provided between the liquid inlet end of the nozzle and the liquid supply pipe; A baffle fixedly provided on the bracket. The sides of the baffle and the nozzle are both arc-shaped, and the baffle fits with the nozzle; A detection component located on one side of the nozzle and used to detect the water depth where the nozzle is located. The detection component can drive the nozzle to rotate around the rotation axis according to the depth of the water where the nozzle is located so that the aperture of the nozzle changes with the water depth.

[0005] As a further solution of the present invention, the detection component includes a cylinder fixedly provided on the liquid supply pipe and a torsion spring. The torsion spring is sleeved on the rotation axis of the nozzle. The top of the cylinder is open. An elastic telescopic strip is fixedly connected to the top end of the cylinder. A push plate is slidably connected inside the cylinder. The bottom end of the push plate extends outside the cylinder. A pressure rod is fixedly connected to the bottom end of the push plate. The pressure rod is located above the nozzle.

[0006] As a further solution of the present invention, a hose is arranged inside the cylinder. An air blowing component is arranged above the hose and used to convey gas to the hose. The hose passes through the cylinder and is fixedly connected to the bottom of the nozzle. A one-way valve is arranged inside the hose.

[0007] As a further solution of the present invention, the air blowing assembly includes a pressing cylinder fixedly connected inside the cylinder body. A sliding plate is slidably connected inside the pressing cylinder. The sliding plate is slidably connected with a sealing rod. The sealing rod is fixedly connected to the bottom of the pushing plate. The sliding plate is provided with a through hole. The bottom end of the sealing rod is provided with a convex block matching the through hole. The convex block is slidably connected with the through hole. The bottom end of the pressing cylinder is fixedly connected with a hose.

[0008] As a further solution of the present invention, an air pipe is fixedly connected to the side wall of the liquid supply pipe. The air pipe is fixedly connected with the cylinder body.

[0009] As a further solution of the present invention, a liquid level detection assembly is arranged between the liquid supply pipe and the nozzle. A connecting piece is rotatably connected to the baffle. The liquid level detection assembly is used to make the connecting piece rotate around the rotation axis after the nozzle is immersed in water.

[0010] As a further solution of the present invention, the liquid level detection assembly includes a sensor and a valve plate. The sensor is fixedly connected with a bracket. The sensor is located above the nozzle. The valve plate is rotatably connected inside the liquid supply pipe. The rotation axis of the valve plate is fixedly connected with a motor. The output shaft of the motor is fixedly connected with the rotation axis of the valve plate. A first support rod is fixedly connected to the rotation axis of the valve plate. The first support rod is rotatably connected with a second support rod. The second support rod is rotatably connected with the baffle.

[0011] As a further solution of the present invention, a fixing piece is fixedly connected to the baffle. The bottom end of the fixing piece is inclined and the top end is located inside the nozzle. The top end of the fixing piece is arc-shaped. The top end of the fixing piece is slidably connected with the nozzle.

[0012] As a further solution of the present invention, the nozzle is conical.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, by increasing the aperture to compensate for the flow loss of the liquid medicine inhibited by the increase of the hydrostatic pressure in the deep water area, the injection flow rate of the liquid medicine is maintained, avoiding the uneven diffusion and the decline of the treatment efficiency caused by insufficient kinetic energy of the liquid medicine injection, avoiding the excessive fluorine concentration in the discharged water, and avoiding the excessive jet flow of the same aperture in the shallow water area due to the small pressure, resulting in the floating of the medicine to the surface layer and the decline of the utilization rate of the liquid medicine. When the aperture of the nozzle increases, the downward inclination angle of the nozzle will gradually increase. With the help of gravity and the initial velocity when the liquid medicine is sprayed obliquely, the liquid medicine is guided, enhancing the drooping of the liquid medicine, making the liquid medicine form an umbrella-shaped diffusion, eliminating the bottom dead zone, and avoiding the reverse deposition of the colloid to block the orifice when the flow rate of the liquid medicine in the deep water area is insufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2This is the front view of the nozzle, cylinder body and liquid supply pipe of the present invention; Figure 3 This is the internal sectional view of the cylinder body of the present invention; Figure 4 This is a schematic diagram of the baffle plate and connecting piece sealing the nozzle of the present invention; Figure 5 This is a schematic diagram of the positional relationship between the nozzle and the fixing piece of the present invention; Figure 6 This is a schematic diagram of the positional relationship between the connecting piece after rotation and the nozzle and baffle plate of the present invention; Figure 7 This is a schematic diagram of the positional relationship between the nozzle after rotation and the fixing piece and baffle plate of the present invention; Figure 8 This is a schematic diagram of the positional relationship between the valve plate, bellows and liquid supply pipe of the present invention; Figure 9 This is a schematic diagram of the connection relationship between the valve plate, first support rod and second support rod of the present invention; Figure 10 This is a schematic diagram of the connection relationship between the pressing cylinder, cylinder body, pressing plate and air pipe of the present invention; Figure 11 This is a schematic diagram of the cylinder body, push plate and elastic telescopic strip before deformation of the present invention; Figure 12 This is a schematic diagram of the elastic telescopic strip pushing the push plate to slide after deformation; Figure 13 This is a schematic diagram of the positional relationship between the pressing cylinder, sealing rod and sliding piece of the present invention; Figure 14 This is the positional relationship between the one-way valve and the hose of the present invention.

[0015] In the drawings: 1. Liquid supply pipe; 101. Bracket; 2. Nozzle; 3. Bellows; 4. Baffle plate; 5. Cylinder body; 6. Elastic telescopic strip; 7. Push plate; 8. Pressing rod; 9. Torsion spring; 10. Pressing cylinder; 11. Sliding piece; 12. Sealing rod; 13. Hose; 14. One-way valve; 15. Air pipe; 16. Connecting piece; 17. Sensor; 18. Valve plate; 19. Motor; 20. First support rod; 21. Second support rod; 22. Fixing piece; 23. Pool body; 24. Main pipeline. Detailed implementation manners

[0016] Please refer to Figures 1-14, the present invention provides a technical solution: a photovoltaic panel cleaning wastewater recycling and reuse device, including a liquid supply pipe 1. Along the axial direction outside the liquid supply pipe 1, several adjusting components are arranged. The liquid supply pipe 1 is located inside a pool body 23, and a main pipeline 24 fixedly connected to the liquid supply pipe 1 is used to transport liquid medicine to the liquid supply pipe 1. The adjusting component includes a bracket 101, a spray head 2, a baffle 4, and a detection component. The bracket 101 is fixedly connected to the liquid supply pipe 1. The spray head 2 is rotatably arranged on the bracket 101. A corrugated pipe 3 is fixedly arranged between the liquid inlet end of the spray head 2 and the liquid supply pipe 1. The baffle 4 is fixedly arranged on the bracket 101. The side edges of the baffle 4 and the spray head 2 are both arc-shaped, and the baffle 4 is attached to the spray head 2. The detection component is located on one side of the spray head 2 and is used to detect the water depth where the spray head 2 is located. The detection component can drive the spray head 2 to rotate around the rotation axis according to the depth of the water where the spray head 2 is located, so that the aperture of the spray head 2 changes with the water depth.

[0017] As Figures 1-7 shown: Before adding medicine: When the spray head 2 is not immersed in water, the arc-shaped baffle 4 is completely attached to the side edge of the spray head 2, realizing complete sealing of the spray orifice; Water level detection: The detection component monitors the immersion depth of each spray head 2 in real time; According to the change of water depth (hydrostatic pressure), the spray head 2 is driven to rotate around the rotation axis on the bracket 101 to realize dynamic adjustment. And the opening angle of the spray head 2 has a linear relationship with the water depth, the effective flow area of the spray orifice increases with the increase of the water depth, and the downward inclination angle of the spray head 2 increases synchronously; When adding medicine: The configured liquid medicine is transported into the liquid supply pipe 1 through the main pipeline 24, and then enters the spray head 2 through the corrugated pipe 3 and is sprayed out. And the aperture of the spray head 2 increases with the increase of the water depth, and the downward inclination angle of the spray head 2 gradually increases with the increase of the water depth; In the present invention, by increasing the aperture to compensate for the flow loss of the liquid medicine inhibited by the increasing hydrostatic pressure in the deep water area, maintaining the liquid medicine spraying flow rate, avoiding uneven diffusion and reduction of treatment efficiency caused by insufficient spraying kinetic energy of the liquid medicine, avoiding excessive fluoride concentration in the effluent, avoiding too strong jet flow in the shallow water area due to small pressure with the same aperture, causing the medicine to float to the surface layer and reducing the utilization rate of the liquid medicine. And when the aperture of the spray head 2 increases, the downward inclination angle of the spray head 2 will gradually increase. With the help of gravity and the initial velocity when the liquid medicine is sprayed obliquely, the liquid medicine is guided, enhancing the drooping of the liquid medicine, making the liquid medicine form an umbrella-shaped diffusion, eliminating the bottom dead zone, and avoiding the reverse deposition of colloid and blocking of the orifice when the liquid medicine flow rate is insufficient in the deep water area.

[0018] As a further solution of the present invention, the detection component includes a cylinder body 5 fixedly arranged on the liquid supply pipe 1 and a torsion spring 9. The torsion spring 9 is sleeved on the rotating shaft of the spray head 2. The top of the cylinder body 5 is open, and an elastic telescopic strip 6 is fixedly connected to the top end of the cylinder body 5. A push plate 7 is slidably connected inside the cylinder body 5. The bottom end of the push plate 7 extends to the outside of the cylinder body 5, and a pressure rod 8 is fixedly connected to the bottom end of the push plate 7. The pressure rod 8 is located above the spray head 2.

[0019] As Figures 1-4 , Figures 10-12 shown: The elastic telescopic strip 6 is set at a height higher than the spray head 2, which can ensure that the spray head 2 is completely immersed in water after the elastic telescopic strip 6 is immersed in water. As Figure 2 shown, the spray head 2 below the liquid level line P is immersed in water deeper than the elastic telescopic strip 6 above; After the elastic telescopic strip 6 is immersed in water, the water pressure will increase with the increase of water depth and squeeze the elastic telescopic strip 6. And the pressure inside the cylinder body 5 is less than the water pressure above the elastic telescopic strip 6, so that the elastic telescopic strip 6 deforms towards the inside of the cylinder body 5. When the diameter of the elastic telescopic strip 6 is 0.1m, the thrust of the elastic telescopic strip 6 on the push plate 7 during deformation is about 38.47N, 76.93N, and 153.86N respectively when the water depths are 0.5m, 1m, and 2m. When the diameter of the elastic telescopic strip 6 is 0.2m and the water depths are 0.5m, 1m, and 2m respectively, the thrust generated by the elastic telescopic strip 6 during deformation is about 153.86N, 307.72N, and 615.44N respectively; When the elastic telescopic strip 6 pushes the push plate 7 to slide down inside the cylinder body 5 with sufficient thrust, it will press down on the spray head 2 from above through the pressure rod 8, so that the spray head 2 rotates downward around the rotating shaft and the torsion spring 9 is compressed. As the water pressure borne by the elastic telescopic strip 6 increases, the downward rotation angle of the spray head 2 increases, thus completing the adjustment of the aperture and inclination angle of the spray head 2; When the wastewater treatment is completed, the elastic telescopic strip 6 automatically resets, and drives the spray head 2 and the push plate 7 to reset through the torsion spring 9.

[0020] A flexible hose 13 is arranged inside the cylinder body 5. An air blowing component is arranged above the flexible hose 13 for delivering gas to the flexible hose 13. The flexible hose 13 passes through the cylinder body 5 and is fixedly connected to the bottom of the spray head 2. A check valve 14 is arranged inside the flexible hose 13.

[0021] The air blowing component includes a pressure cylinder 10 fixedly connected inside the cylinder body 5. A sliding plate 11 is slidably connected inside the pressure cylinder 10. A sealing rod 12 is slidably connected to the sliding plate 11. The sealing rod 12 is fixedly connected to the bottom of the push plate 7. The sliding plate 11 is provided with a through hole. A convex block matching the through hole is arranged at the bottom end of the sealing rod 12. The convex block is slidably connected to the through hole. The bottom end of the pressure cylinder 10 is fixedly connected to the flexible hose 13.

[0022] AsFigure 3 , Figure 4 , Figure 10 , Figure 13 and Figure 14 as shown in: When the elastic telescopic strip 6 pushes the push plate 7 to slide down inside the cylinder body 5, it will drive the sealing rod 12 to slide down inside the pressure cylinder 10 towards the sliding plate 11. The sliding plate 11 remains stationary through the static friction with the inner wall of the pressure cylinder 10. When the sealing rod 12 descends to fit with the sliding plate 11, the convex block at the bottom end of the sealing rod 12 will coincide with the through hole of the sliding plate 11 to seal the sliding plate 11. Then, the sealing rod 12 forcibly drives the sliding plate 11 to slide down inside the pressure cylinder 10, and then the air inside the pressure cylinder 10 is blown through the nozzle end of the nozzle 2 by the hose 13; The bubbles generated by blowing can destroy the initial nucleation of the colloid precipitation near the orifice of the nozzle 2, avoid blockage, and will not form continuous flow state disorder. The instantaneous blowing only briefly breaks the boundary layer and does not affect the main flocculation process; When the wastewater treatment is completed, when the torsion spring 9 drives the nozzle 2 to reset, it will drive the push plate 7 to rise through the pressure rod 8. The push plate 7 drives the sealing rod 12 to slide up relative to the sliding plate 11. When the sealing rod 12 slides up to the maximum extent relative to the sliding plate 11, the convex block separates from the through hole. Then, the sealing rod 12 drives the sliding plate 11 to slide up forcibly, and the check valve 14 can prevent the external wastewater from flowing back through the hose 13.

[0023] The side wall of the liquid supply pipe 1 is fixedly connected with an air pipe 15, and the air pipe 15 is fixedly connected with the cylinder body 5.

[0024] As Figure 2 , Figure 3 and Figure 10 shown in: Through the air pipe 15 connected to the cylinder body 5, and the top end of the air pipe 15 is above the liquid level line P, so as to ensure that the outside air is in communication with the inside of the cylinder body 5.

[0025] A liquid level detection component is arranged between the liquid supply pipe 1 and the nozzle 2; The baffle 4 is rotatably connected with a connecting piece 16, and the liquid level detection component is used to make the connecting piece 16 rotate around the rotation axis after the nozzle 2 is immersed in water.

[0026] The liquid level detection component includes a sensor 17 and a valve plate 18. The sensor 17 is fixedly connected with a bracket 101. The sensor 17 is located above the nozzle 2. The valve plate 18 is rotatably connected inside the liquid supply pipe 1. The rotation axis of the valve plate 18 is fixedly connected with a motor 19. The output shaft of the motor 19 is fixedly connected with the rotation axis of the valve plate 18. A first support rod 20 is fixedly connected to the rotation axis of the valve plate 18. The first support rod 20 is rotatably connected with a second support rod 21. The second support rod 21 is rotatably connected with the baffle 4.

[0027] As Figures 2-5 ,Figures 8-9 As shown in: The height of the sensor 17 is higher than that of the nozzle 2. When the nozzle 2 is completely immersed in water and the sensor 17 enters below the liquid level line P, the sensor 17 detects the water level, and then controls the motor 19 to drive the valve plate 18 to rotate from the vertical to the horizontal. At this time, the liquid medicine inside the liquid supply pipe 1 can be sprayed out from the nozzle 2. During the process of the valve plate 18 rotating to the horizontal, it will push the second rod 21 through the first rod 20, so that the second rod 21 pushes the baffle 4 to rotate to the maximum extent (≥90°); After the baffle 4 rotates to the maximum extent, it will make the nozzle 2 maintain the smallest flow aperture (such as 5 mm). This can prevent the aperture from being blocked by external colloids or silicon powder due to being too small. Even if the elastic telescopic strip 6 above is not immersed in water at this time, the nozzle 2 can still maintain the smallest opening when it is closest to the liquid level line P, ensuring that dosing operations can be carried out after each nozzle 2 is immersed in water. Then, according to the depth of the elastic telescopic strip 6 immersed in water, the opening amplitude of the nozzle 2 is controlled to continue to increase from the smallest aperture; When the nozzle 2 immersed in water finishes delivering the liquid medicine, water can be directly supplied through the main pipeline 24 to backwash the nozzle 2 that is delivering the liquid medicine, or after the wastewater treatment is completed, all the valve plates 18 are controlled to open, so that the nozzle 2 can be backwashed while maintaining the smallest flow aperture.

[0028] The baffle 4 is fixedly connected with a fixing piece 22. The bottom end of the fixing piece 22 is inclined and the top end is located inside the nozzle 2. The top end of the fixing piece 22 is arc-shaped, and the top end of the fixing piece 22 is slidably connected with the nozzle 2.

[0029] The nozzle 2 is conical.

[0030] Such as Figures 5-8 As shown in: When the nozzle 2 rotates relative to the baffle 4 around the rotation axis on the bracket 101, the fixing piece 22 will rotate relative to the inside of the nozzle 2. Through the inclined bottom of the fixing piece 22, the liquid medicine can be guided during the spraying of the nozzle 2, avoiding large resistance when the aperture of the nozzle 2 changes. Through the conical nozzle 2, the inlet end is larger than the outlet end, further reducing the flow resistance.

Claims

1. A photovoltaic panel cleaning wastewater recycling and reuse device, including a liquid supply pipe (1), characterized in that, A number of adjusting components are arranged axially along the outside of the liquid supply pipe (1), and the adjusting components include: a bracket (101) fixedly connected to the liquid supply pipe (1); a spray head (2) rotatably arranged on the bracket (101), and a corrugated pipe (3) is fixedly arranged between the liquid inlet end of the spray head (2) and the liquid supply pipe (1); a baffle plate (4) fixedly arranged on the bracket (101), the sides of the baffle plate (4) and the spray head (2) are both arc-shaped, and the baffle plate (4) is in contact with the spray head (2); a detection component located on one side of the spray head (2) and used to detect the water depth where the spray head (2) is located. The detection component can drive the spray head (2) to rotate around the rotation axis according to the depth of the water depth where the spray head (2) is located so that the aperture of the spray head (2) changes with the water depth.

2. The photovoltaic panel cleaning wastewater recycling and reuse device according to claim 1, wherein: The detection component includes a cylinder body (5) fixedly arranged on the liquid supply pipe (1) and a torsion spring (9). The torsion spring (9) is sleeved on the rotation axis of the spray head (2). The top of the cylinder body (5) is open, and an elastic telescopic strip (6) is fixedly connected to the top end of the cylinder body (5). A push plate (7) is slidably connected inside the cylinder body (5). The bottom end of the push plate (7) extends to the outside of the cylinder body (5), and a pressure rod (8) is fixedly connected to the bottom end of the push plate (7). The pressure rod (8) is located above the spray head (2).

3. The photovoltaic panel cleaning wastewater recycling and reuse device according to claim 2, characterized in that: A hose (13) is arranged inside the cylinder body (5). An air blowing component is arranged above the hose (13) and is used to convey gas to the hose (13). The hose (13) passes through the cylinder body (5) and is fixedly connected to the bottom of the spray head (2). A one-way valve (14) is arranged inside the hose (13).

4. A photovoltaic panel cleaning wastewater recycling and reuse device according to claim 3, characterized in that: The air blowing component includes a pressure cylinder (10) fixedly connected inside the cylinder body (5). A sliding piece (11) is slidably connected inside the pressure cylinder (10). The sliding piece (11) is slidably connected to a sealing rod (12). The sealing rod (12) is fixedly connected to the bottom of the push plate (7). The sliding piece (11) is provided with a through hole, and a convex block matching the through hole is arranged at the bottom end of the sealing rod (12). The convex block is slidably connected to the through hole. The bottom end of the pressure cylinder (10) is fixedly connected to the hose (13).

5. A photovoltaic panel cleaning wastewater recycling and reuse device according to claim 2, characterized in that: An air pipe (15) is fixedly connected to the side wall of the liquid supply pipe (1), and the air pipe (15) is fixedly connected to the cylinder body (5).

6. The photovoltaic panel cleaning wastewater recycling and reuse device according to claim 5, characterized in that: A liquid level detection component is arranged between the liquid supply pipe (1) and the spray head (2); A connecting piece (16) is rotatably connected to the baffle plate (4), and the liquid level detection component is used to make the connecting piece (16) rotate around the rotation axis after the spray head (2) is immersed in water.

7. The photovoltaic panel cleaning wastewater recycling and reuse device according to claim 6, characterized in that: The liquid level detection assembly includes a sensor (17) and a valve plate (18). The sensor (17) is fixedly connected to a bracket (101). The sensor (17) is located above the nozzle (2). The valve plate (18) is rotatably connected inside the liquid supply pipe (1). A motor (19) is fixedly connected to the rotating shaft of the valve plate (18). The output shaft of the motor (19) is fixedly connected to the rotating shaft of the valve plate (18). A first support rod (20) is fixedly connected to the rotating shaft of the valve plate (18). The first support rod (20) is rotatably connected to a second support rod (21). The second support rod (21) is rotatably connected to a baffle (4).

8. A photovoltaic panel cleaning wastewater recycling and reuse device according to claim 7, characterized in that: A fixing piece (22) is fixedly connected to the baffle (4). The bottom end of the fixing piece (22) is inclined and the top end is located inside the nozzle (2). The top end of the fixing piece (22) is arc-shaped. The top end of the fixing piece (22) is slidably connected to the nozzle (2).

9. The photovoltaic panel cleaning wastewater recycling and reuse device according to claim 8, characterized in that: The nozzle (2) is conical.

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