Power generation device for recycling return water energy of circulating water

Abstract

The invention provides a power generation device for recycling return water energy of circulating water, and relates to the technical field of hydroelectric generation, the power generation device comprises a mounting frame, the two sides of the mounting frame are fixedly mounted on the inner wall of a return water well, a fixing seat is fixedly mounted at the top of the mounting frame, and the bottom of a water turbine is fixedly mounted at the top of the fixing seat; a hydroelectric generator is installed on the back of the water turbine, the circulating water recycling mechanism is arranged on one side above the water return well, and the filtering mechanism is arranged on one side of the circulating water recycling mechanism and communicates with a water inlet of the water turbine through a water conveying pipeline. Circulating water recycled by the circulating water recycling mechanism is filtered by the filtering mechanism and then conveyed into the water turbine in the water return well through the water conveying pipeline, and power generation is completed in cooperation with the hydroelectric generator. The resource waste caused by the discharge of circulating water is effectively avoided, the power consumption is reduced, and the economical efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydroelectric power generation, in particular to a power generation device for recovering circulating water return energy. Background Art

[0002] At present, in the circulating water system of power plants, circulating water is mainly used for chemical water production and cooling water for the entire plant. The circulating water used for cooling will eventually return to the return well and be discharged. The circulating water system of a power plant is mostly composed of several circulating water pumps. In actual work, when several circulating water pumps are running at the same time, the return flow of circulating water can reach a very large flow rate, and the direct discharge of this water is also a loss, resulting in a large waste of water resources; secondly, combined with the current background of power plants needing to save electricity, in order to realize the concept of green and sustainable development of the circulating water system of power plants, it is necessary to effectively utilize the return water energy of recycled circulating water. Therefore, in response to the above problems, a power generation device for recovering the return water energy of circulating water is proposed. Summary of the invention

[0003] The present invention provides a power generation device for recovering circulating water return energy, so as to solve at least one of the problems raised by the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention discloses a power generation device for recovering circulating water return energy, comprising a mounting frame, both sides of the mounting frame are fixedly mounted on the inner wall of a return well, a fixing seat is fixedly mounted on the top of the mounting frame, the bottom of a water turbine is fixedly mounted on the top of the fixing seat, a hydroelectric generator is installed on the back of the water turbine, a circulating water recovery mechanism is arranged on one side above the return well, a filtering mechanism is arranged on one side of the circulating water recovery mechanism, and the filtering mechanism is connected to the water inlet of the water turbine through a water supply pipe.

[0005] Preferably, the water turbine and the hydroelectric generator form an oblique-impact hydroelectric generator, and the oblique-impact hydroelectric generator is configured as a NYP-4 permanent magnet horizontal small hydroelectric generator.

[0006] Preferably, the circulating water recovery mechanism includes a fixed frame, the bottom of which is fixedly installed on the ground on one side of the return well, a plurality of circulating water pumps are respectively arranged on the fixed frame, and the water inlets of the plurality of circulating water pumps are respectively connected to a first water pipe in a one-to-one correspondence, the first water pipe is provided with a flow valve, and the water outlets of the plurality of circulating water pumps are respectively connected to a second water pipe in a one-to-one correspondence, and the second water pipe is provided with a valve.

[0007] Preferably, the filtering mechanism comprises a box body, the bottom of which is fixedly mounted on the ground, an observation window is provided on the front side wall of the box body, a water inlet at the top of the box body is communicated with the water outlet of the second water pipe, and a water outlet at the bottom of the box body is communicated with the water inlet of the water pipe, a driving box is fixedly mounted on the inner wall of the box body through a support seat, a first driving motor is fixedly mounted on the outer side wall of the box body, and a driving shaft is fixedly connected to the output shaft of the first driving motor, and one end of the driving shaft is rotated through the box body and a first bevel gear is fixedly mounted on the side wall of the driving box in turn, the upper end of the rotating shaft one is rotated through the side wall of the driving box and is fixedly connected to the second bevel gear, a scraper is fixedly mounted on the lower end of the rotating shaft one, and the bottom of the filter is fixedly mounted on the side wall inside the box body through a fixing ring.

[0008] Preferably, it also includes a water baffle, the bottom of which is fixedly mounted on the top of the mounting frame, a water pump is arranged on one side of the top of the mounting frame, the water inlet and water outlet of the water pump are respectively connected to a water suction pipe and a drainage pipe, and the lower end of the water suction pipe is arranged at the bottom of the return well.

[0009] Preferably, it also includes an auxiliary power generation mechanism, which is arranged at the bottom of the return water well, and the auxiliary power generation mechanism includes a spiral feeding pipe, which is installed on the mounting frame and the fixing frame, and the lower end of the spiral feeding pipe is arranged at the bottom of the return water inlet, the shell one is fixedly installed at the bottom of the mounting frame, and the servo motor is fixedly installed in the shell one, and the output shaft of the servo motor is fixedly installed with a slide rail, a self-propelled trolley is arranged on the slide rail, and the self-propelled trolley is slidably connected to the slide rail, the top of the auxiliary box is fixedly connected to the bottom of the self-propelled trolley through a connecting plate, the mounting box is fixedly installed on the front side wall of the auxiliary box, and the suction mechanism is arranged in the mounting box.

[0010] Preferably, the auxiliary box includes a second driving motor, the second driving motor is fixedly mounted on the front side wall of the auxiliary box, and a transmission shaft is fixedly mounted on the output shaft of the second driving motor, a support plate one is fixedly mounted on the front side wall of the auxiliary box, one end of the transmission shaft rotates through the support plate one and is fixedly connected to a worm gear, one end of the worm gear is rotatably connected to the side wall of the auxiliary box, two ends of the support shaft one are respectively rotatably connected to the top and bottom of the inner wall of the auxiliary box, and the support shaft one is fixedly mounted with a first pulley and a worm gear from top to bottom, the worm gear is meshed with the worm gear, the mounting plate is fixedly mounted on the outer side wall of the auxiliary box, and the mounting plate is rotatably connected to a rotating shaft two, the upper end of the rotating shaft two is fixedly connected to a second pulley, the second pulley is connected to the first pulley through a belt one, and the belt one passes through the side wall of the auxiliary box, and the lower end of the rotating shaft two is fixedly connected to a cleaning brush.

[0011] Compared with the prior art, the power generation device for recycling circulating water return energy provided by the present invention has the following beneficial effects:

[0012] 1. The power generation device for recovering circulating water return energy installs a small hydroelectric generator in the circulating water return well. The circulating water is recovered by the circulating water recovery mechanism, and the circulating water level return energy is used for power generation. The electric energy is used for lighting, ventilation, air conditioning and other equipment in the circulating water pump room, which greatly saves the power consumption of the power plant and increases the economy.

[0013] 2. The above-mentioned power generation device for recovering circulating water return energy can not only effectively utilize the circulating water return energy in the circulating water system, but also avoid the waste of water resources, not only realize green and sustainable development, but also increase the economy of the operation of the circulating water system's circulating pump room HVAC equipment in practical applications, but also enhance the reliability and safety of the operation of the circulating water system's circulating pump room HVAC equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of a power generation device for recovering circulating water return energy provided by an embodiment of the present invention;

[0016] Figure 2 A right side structural schematic diagram of a filtering mechanism provided in an embodiment of the present invention;

[0017] Figure 3 A schematic diagram of the top view of the auxiliary power generation mechanism provided by an embodiment of the present invention;

[0018] Figure 4 A schematic top view of the structure of the suction mechanism provided in an embodiment of the present invention.

[0019] Reference numerals:

[0020] 1. Mounting frame; 2. Return well; 3. Fixed seat; 4. Turbine; 5. Hydroelectric generator; 6. Circulating water recovery mechanism; 7. Filter mechanism; 8. Water pipeline; 9. Fixed frame; 10. Circulating water pump; 11. First water pipeline; 12. Flow valve; 13. Second water pipeline; 14. Valve; 15. Box; 16. Observation window; 17. Drive box; 18. Support seat; 19. First drive motor; 20. Drive shaft; 21. First bevel gear; 22. Rotating shaft 1; 23. Second bevel gear; 24. Scraper; 25. Filter screen; 26. Fixed ring; 27. Water baffle; 28. Water pump; 29. ​​Water pipe; 30. Drain pipe; 31. Auxiliary power generation mechanism; 32. Spiral feed pipe; 33. Shell 1; 34. Servo motor; 35. Slide rail; 36. Self-propelled trolley; 37. Auxiliary box; 38. Connecting plate; 39, mounting box; 40, suction mechanism; 41, second driving motor; 42, transmission shaft; 43, support plate one; 44, worm; 45, support shaft one; 46, first pulley; 47, worm gear; 48, mounting plate; 49, rotating shaft two; 50, second pulley; 51, belt one; 52, cleaning brush; 53, first gear; 54, housing two; 55, spiral feeding rod; 56, connecting shaft one; 57, second gear; 58, electric telescopic rod; 59, fixing block; 60, guide rail; 61, cleaning plate; 62, driving motor; 63, mounting seat; 64, cam; 65, support plate two; 66, sliding rod; 67, connecting rod one; 68, driving block; 69, fixing plate; 70, track roller; 71, connecting rod two; 72, suction fan blade; 73, sliding sleeve; 74, material removal plate; 75, pull rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention provides the following embodiments

[0023] Example 1

[0024] The embodiment of the present invention provides a power generation device for recovering circulating water return energy, such as Figure 1-Figure 2As shown, it includes a mounting frame 1, both sides of which are fixedly mounted on the inner wall of the return well 2, a fixing seat 3 is fixedly mounted on the top of the mounting frame 1, the bottom of the turbine 4 is fixedly mounted on the top of the fixing seat 3, a hydroelectric generator 5 is installed on the back of the turbine 4, a circulating water recovery mechanism 6 is arranged on one side above the return well 2, a filtering mechanism 7 is arranged on one side of the circulating water recovery mechanism 6, and the filtering mechanism 7 is connected to the water inlet of the turbine 4 through a water pipe 8.

[0025] Preferably, the water turbine 4 and the hydroelectric generator 5 form an oblique-impact hydroelectric generator, and the oblique-impact hydroelectric generator is configured as a NYP-4 permanent magnet horizontal small hydroelectric generator.

[0026] Preferably, the circulating water recovery mechanism 6 includes a fixed frame 9, the bottom of which is fixedly installed on the ground on one side of the return well 2, and a plurality of circulating water pumps 10 are respectively arranged on the fixed frame 9, and the water inlets of the plurality of circulating water pumps 10 are respectively connected to a first water pipe 11 in a one-to-one correspondence, and a flow valve 12 is arranged on the first water pipe 11, and the water outlets of the plurality of circulating water pumps 10 are respectively connected to a second water pipe 13 in a one-to-one correspondence, and a valve 14 is arranged on the second water pipe 13.

[0027] Preferably, the filtering mechanism 7 includes a box body 15, the bottom of which is fixedly mounted on the ground, an observation window 16 is provided on the front side wall of the box body 15, a water inlet at the top of the box body 15 is communicated with a water outlet of the second water pipe 13, and a water outlet at the bottom of the box body 15 is communicated with a water inlet of the water pipe 8, a driving box 17 is fixedly mounted on the inner wall of the box body 15 through a support seat 18, a first driving motor 19 is fixedly mounted on the outer side wall of the box body 15, and a driving shaft 20 is fixedly connected to the output shaft of the first driving motor 19, and one end of the driving shaft 20 is rotated through the side walls of the box body 15 and the driving box 17 in turn to be fixedly mounted with a first bevel gear 21, an upper end of a rotating shaft 22 is rotated through the side wall of the driving box 17 to be fixedly connected with a second bevel gear 23, a scraper 24 is fixedly mounted on the lower end of the rotating shaft 22, and the bottom of the filter screen 25 is fixedly mounted on the side wall inside the box body 15 through a fixing ring 26.

[0028] Preferably, it also includes a water baffle 27, the bottom of which is fixedly mounted on the top of the mounting frame 1, and a water pump 28 is arranged on one side of the top of the mounting frame 1. The water inlet and water outlet of the water pump 28 are respectively connected to a water pumping pipe 29 and a drainage pipe 30, and the lower end of the water pumping pipe 29 is arranged at the bottom of the return well 2.

[0029] The working principle and beneficial effects of the above technical solution are:

[0030] The main structure of the power generation device for recycling circulating water return energy of the present invention is provided with a mounting frame 1, a circulating water recovery mechanism 6, a filtering mechanism 7, a turbine 4 and a hydroelectric generator 5. The turbine 4 and the hydroelectric generator 5 are mounted on the mounting frame 1 through a fixing seat 633, and the turbine 4 and the hydroelectric generator 5 form an oblique impact hydroelectric generator, and the oblique impact hydroelectric generator is set as a NYP-4 permanent magnet horizontal small hydroelectric generator. The NYP-4 permanent magnet horizontal small hydroelectric generator converts the energy of the water flow into mechanical energy through the turbine 4, and then drives the rotor of the hydroelectric generator 5 to rotate, and generates electrical energy in the stator by using the electromagnetic induction principle. At the same time, the permanent magnet is fixed on the rotor. As the rotor rotates, the magnetic field generated by the permanent magnet interacts with the coil in the stator to generate current output; and the hydroelectric generator 5 uses a permanent magnet as a magnetic field source, does not require an external excitation power supply, and has the advantages of simple structure, convenient maintenance, high efficiency, etc. Secondly, the horizontal hydroelectric generator 5 may be more convenient in installation and maintenance, and is suitable for some special occasions such as space limitation.

[0031] In the above, the circulating water in the circulating water system of the power plant is firstly transported to the power generation device through the circulating water recovery mechanism 6, and the first water delivery pipe 11 connected by a plurality of circulating water pumps 10 arranged on the fixed frame 9 is connected to the circulating water pipe of the power plant. When the circulating water pump 10 is started, the circulating water can be transported to the box 15 through the first water delivery pipe 11 and the second water delivery pipe 13. The flow valve 12 arranged on the first water delivery pipe 11 is a device for controlling the flow of the fluid in the pipeline. By adjusting the throttling area between the valve core and the valve body and the local resistance generated by the throttling port, the flow rate is controlled. The valve 14 arranged on the second water pipe 13 can realize the control of the circulating water entering the power generation device, so as to avoid the transmission of the circulating water in time when the turbine 4 and the hydroelectric generator 5 fail. Secondly, the circulating water transported to the box 15 passes through the filter screen 25 fixedly installed on the fixed ring 26 to filter the circulating water. The impurities in the water are filtered, and the filtered circulating water is transported to the oblique impact hydroelectric generator 5 through the water delivery pipe 8 to complete power generation. The first drive motor 19 fixedly installed on the outer wall of the box body 15 drives the drive shaft 20 to rotate, and the first bevel gear 21 fixedly connected to the drive shaft 20 realizes rotation. At the same time, the first bevel gear 21 and the second bevel gear 23 are meshed and driven, so that the rotating shaft 22 fixedly connected to the second bevel gear 23 rotates synchronously, driving the scraper 24 fixedly connected to the lower end of the rotating shaft 22 to realize rotation along the top of the filter plate The mechanism can start the first drive motor 19 to scrape off impurities in time when impurities are attached to the filter plate, so as to avoid excessive impurities adhering to the filter screen 25 and affecting the efficiency of circulating water transportation. The observation window 16 arranged on the front side of the box body 15 can better monitor the internal conditions of the box body 15. When the impurities adhering to the filter screen 25 exceed the preset standard, the impurities on the filter screen 25 are removed or the filter screen 25 is replaced, so as to ensure that the impurities in the circulating water enter the power generation device to cause damage to the hydroelectric generator 5, thereby affecting the efficiency of power generation.

[0032] Secondly, the water baffle 27 fixedly installed on the top of the mounting frame 1 can block the circulating water flowing out of the hydroelectric generator 5, so that the circulating water can fall into the return well 2, avoiding the circulating water from the hydroelectric generator 5 from being sprayed, and the provided pumping pump 28 can cooperate with the pumping pipe 29 and the drain pipe 30 to discharge the sewage or wastewater at the bottom of the return well 2, avoiding the excessive wastewater stored at the bottom of the return well 2 and affecting the working efficiency of the power generation device; the invention can install a small hydroelectric generator 5 in the circulating water return well 2, and the circulating water is recovered by the circulating water recovery mechanism 6, and the circulating water level return water energy is used for power generation, and this electric energy is used for the power supply of the lighting, ventilation and air conditioning equipment in the circulating water pump 10 room, which greatly saves the power consumption of the power plant and increases the economy. Secondly, it can not only effectively utilize the circulating water return energy, but also avoid the waste of water resources, realize green and sustainable development, and increase the economy of the operation of the circulating pump room HVAC equipment in actual application, and also enhance the reliability and safety of the operation of the circulating pump room HVAC equipment.

[0033] Example 2

[0034] On the basis of Example 1, Figure 1 , Figure 3 As shown, it also includes an auxiliary power generation mechanism 31, which is arranged at the bottom of the return water well 2. The auxiliary power generation mechanism 31 includes a spiral feeding pipe 32, which is installed on the mounting frame 1 and the fixing frame 9, and the lower end of the spiral feeding pipe 32 is arranged at the bottom of the return water well, the shell 33 is fixedly installed at the bottom of the mounting frame 1, and the servo motor 34 is fixedly installed in the shell 33, and the output shaft of the servo motor 34 is fixedly installed with a slide rail 35, and a self-propelled trolley 36 is arranged on the slide rail 35, and the self-propelled trolley 36 is slidably connected to the slide rail 35, the top of the auxiliary box 37 is fixedly connected to the bottom of the self-propelled trolley 36 through a connecting plate 38, the installation box 39 is fixedly installed on the front side wall of the auxiliary box 37, and the suction mechanism 40 is arranged in the installation box 39.

[0035] Preferably, the auxiliary box 37 includes a second drive motor 41, the second drive motor 41 is fixedly installed on the front side wall of the auxiliary box 37, a transmission shaft 42 is fixedly installed on the output shaft of the second drive motor 41, a support plate 43 is fixedly installed on the front side wall of the auxiliary box 37, one end of the transmission shaft 42 rotates through the support plate 43 and is fixedly connected to a worm 44, one end of the worm 44 is rotatably connected to the side wall of the auxiliary box 37, and both ends of the support shaft 45 are rotatably connected to the top of the inner wall of the auxiliary box 37. The auxiliary box 37 has a top and a bottom, and the support shaft 1 45 is fixedly installed with a first pulley 46 and a worm wheel 47 from top to bottom, the worm wheel 47 is meshed with the worm 44, a mounting plate 48 is fixedly installed on the outer wall of the auxiliary box 37, and a rotating shaft 2 49 is rotatably connected to the mounting plate 48, the upper end of the rotating shaft 2 49 is fixedly connected with a second pulley 50, the second pulley 50 is connected to the first pulley 46 through a belt 1 51, and the belt 1 51 passes through the side wall of the auxiliary box 37, and a cleaning brush 52 is fixedly connected to the lower end of the rotating shaft 2 49.

[0036] Among them, preferably, a first gear 53 is fixedly connected to the transmission shaft 42, shell body 54 is fixedly connected to the front side wall inside the auxiliary box 37, one end of the spiral feeding rod 55 is rotatably connected to the side wall inside the shell body 54, and the other end of the spiral feeding rod 55 is fixedly connected to a connecting shaft 1 56, one end of the connecting shaft 1 56 rotates through the side wall of the shell body 2 54 and is fixedly installed with a second gear 57, the second gear 57 is meshed with the first gear 53, the fixed end of the electric telescopic rod 58 is fixedly installed on the rear side wall of the shell body 2 54 through a fixing block 59, and the telescopic end of the electric telescopic rod 58 passes through the right side wall of the auxiliary box 37 and is fixedly installed with a push plate, the guide rail 60 is installed on the rear side of the outer side wall of the installation box 39, and the front side of the cleaning plate 61 is slidably connected to the guide rail 60.

[0037] The working principle and beneficial effects of the above technical solution are:

[0038] The auxiliary power generation mechanism 31 set in the power generation device for recycling the circulating water backwater energy can be used when the recycled circulating water flows into the bottom of the backwater well 2 after the power generation of the power generation device is completed, and the circulating water is discharged through the drainage mechanism set in the backwater well 2. When a large amount of impurities appear at the bottom of the backwater well 2 after long-term use and clogging occurs, the auxiliary power generation mechanism 31 is used to complete the cleaning process to avoid the untimely discharge of the circulating water or affect the power generation efficiency of the power generation device. When it is necessary to form sludge for the impurities and wastewater accumulated at the bottom of the backwater well 2, which makes it difficult to discharge the backwater well 2 and affects the power generation efficiency of the power generation device, the servo motor 34 fixedly installed in the housing 1 33 is started, so that the slide rail 35 fixedly connected to the output shaft of the servo motor 34 can realize horizontal rotation under the drive of the servo motor 34, and the walking trolley slidably connected to the slide rail 35 drives the auxiliary box 37 connected through the connecting plate 38 to move horizontally along the slide rail 35, thereby realizing the auxiliary power generation mechanism 31 to clean the bottom of the backwater well 2 in all directions to avoid clogging at the bottom of the backwater well 2.

[0039] Secondly, the second drive motor 41 arranged in the auxiliary box 37 is started, and the second drive motor 41 drives the transmission shaft 42 to rotate, so that the transmission shaft 42 connected to the support plate 1 43 can rotate, driving the first gear 53 and the worm 44 fixedly connected to the transmission shaft 42 to rotate synchronously, and the worm wheel 47 is meshed with the worm 44 for transmission, so that the worm wheel 47 fixedly installed on the support shaft 1 45 drives the support shaft 1 45 to rotate along the top and bottom inner walls of the auxiliary box 37, and at the same time, the first pulley 46 fixedly installed on the support shaft 1 45 also rotates synchronously, and the first pulley 46 drives the second pulley 50 connected by the belt 1 51 to rotate on the rotating shaft 2 49, so that the rotating shaft 2 49 can rotate on the mounting plate 48, and the second pulley 50 fixedly installed at the lower end of the rotating shaft 2 49 can rotate. The cleaning brush 52 effectively removes the debris attached to the bottom of the water recovery well 2. In addition, the second gear 57 and the first gear 53 are meshed and driven to drive the connecting shaft 1 56 fixedly connected to the second gear 57 to rotate synchronously, and at the same time drive the spiral feeding rod 55 to rotate in the shell 2 54. When the suction mechanism 40 collects and transports the sludge removed by the auxiliary power generation mechanism 31 to the shell 2 54 for a short stay and collection, as the auxiliary box 37 moves horizontally along the slide rail 35, the spiral feeding rod 55 discharges the sludge from the shell 2 54. At the same time, the extension and retraction of the electric telescopic rod 58 can drive the cleaning plate 61 to move the sludge discharged from the shell 2 54, thereby accelerating the discharge speed, so that the sludge can be discharged from the water recovery well 2 through the set spiral feeding pipe 32.

[0040] The above-mentioned auxiliary power generation mechanism 31 of the power generation device for recovering the circulating water return energy completes the cleaning of the sludge at the bottom of the return well 2, which can avoid the difficulty of discharging the circulating water caused by clogging at the bottom of the return well 2 and can clear it in time, which not only reduces the work intensity of the staff, but also saves the cleaning time, and at the same time can ensure the working efficiency of the power generation device.

[0041] Example 3

[0042] On the basis of Example 1 or 2, Figure 3-Figure 4 As shown, the suction mechanism 40 includes a driving motor 62, and the driving motor 62 is fixedly mounted on the inner wall of the right side of the installation box 39 through a mounting seat 63, a cam 64 is fixedly connected to the output shaft of the driving motor 62, a support plate 65 is fixedly mounted on the front side wall in the installation box 39, and a slide bar 66 is slidably connected to the support plate 65, one end of the connecting rod is hinged on one end of the slide bar 66, and the other end of the connecting rod 67 is hinged on the position of the cam 64 away from the center. A driving block 68 is fixedly mounted on the other end of the slide bar 66, and fixed Both sides of the plate 69 are fixedly connected to the inner wall of the installation box 39, one end of the connecting rod 71 rotates through the fixed plate 69 to fix a track roller 70, the driving block 68 is slidably connected on the track roller 70, the other end of the connecting rod 71 is fixedly installed with a suction fan blade 72, the sliding sleeve 73 is slidably connected to the connecting rod 71, and a plurality of material removal plates 74 are arranged at intervals on the circumference of the sliding sleeve 73, one end of the pull rod 75 is fixedly connected to the right end of the sliding rod 66, and the other end of the pull rod 75 is fixedly connected to the side wall of the right end of the sliding sleeve 73.

[0043] The working principle and beneficial effects of the above technical solution are:

[0044] The suction mechanism 40 provided in the auxiliary power generation mechanism 31 can collect the sludge cleaned by the auxiliary power generation mechanism 31, and cooperate with the auxiliary power generation mechanism 31 to discharge the sludge, thereby improving the discharge efficiency of the clogging impurities. When the auxiliary power generation mechanism 31 starts to operate, the suction mechanism 40 is started by the driving motor 62 fixedly installed in the installation box 39, and drives the cam 64 fixedly installed on the output shaft of the driving motor 62 to rotate synchronously. With the rotation of the cam 64, the sliding rod 66 connected by the connecting rod 1 67 is driven to move left and right along the support plate 2 65. At the same time, the sliding rod 66 drives the fixedly connected driving block 68 to slide along the track roller 70, so that the connecting rod 2 71 fixedly connected to the track roller 70 is rotated along the fixed plate 69, driving the suction fan blade 72 fixedly connected to the connecting rod 2 71 to rotate. Thereby, the silt at the bottom of the return well 2 is collected. At this time, after the silt is collected in the installation box 39, the left and right movement of the slide bar 66 drives the fixedly installed pull rod 75 to move horizontally left and right, so that the pull rod 75 drives the fixedly connected sliding sleeve 73 to slide left and right on the connecting rod 2 71, and a plurality of material removal plates 74 fixedly installed on the sliding sleeve 73 can transport the silt collected in the installation box 39 to the discharge port of the installation box 39 as the sliding sleeve 73 moves left and right, so that the silt is transported to the shell 2 54 to complete the collection. The above-mentioned power generation device for recovering the circulating water return energy can avoid the clogging of the bottom of the return well 2 after long-term use, causing drainage difficulties, thereby affecting the power generation efficiency of the power generation device, ensuring the working efficiency of the power generation device for recovering the circulating water return energy, and effectively improving the stability and reliability of the operation of the power generation device for recovering the circulating water return energy.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power generation device for recovering circulating water return energy, characterized in that: The invention comprises a mounting frame (1), the two sides of the mounting frame (1) are fixedly mounted on the inner wall of a water return well (2), a fixing seat (3) is fixedly mounted on the top of the mounting frame (1), the bottom of a water turbine (4) is fixedly mounted on the top of the fixing seat (3), a hydroelectric generator (5) is mounted on the back of the water turbine (4), a circulating water recovery mechanism (6) is arranged on one side above the water return well (2), a filtering mechanism (7) is arranged on one side of the circulating water recovery mechanism (6), and the filtering mechanism (7) is connected to the water inlet of the water turbine (4) through a water delivery pipeline (8).

2. A power generation device for recovering circulating water return energy according to claim 1, characterized in that: The water turbine (4) and the hydroelectric generator (5) form an oblique-impact hydroelectric generator, and the oblique-impact hydroelectric generator is configured as a NYP-4 permanent magnet horizontal small-sized hydroelectric generator.

3. A power generation device for recovering circulating water return energy according to claim 1, characterized in that: The circulating water recovery mechanism (6) comprises a fixing frame (9), the bottom of which is fixedly mounted on the ground at one side of the return well (2), a plurality of circulating water pumps (10) are respectively arranged on the fixing frame (9), and the water inlets of the plurality of circulating water pumps (10) are respectively connected to first water pipes (11) in a one-to-one correspondence, the first water pipes (11) are provided with flow valves (12), and the water outlets of the plurality of circulating water pumps (10) are respectively connected to second water pipes (13) in a one-to-one correspondence, and the second water pipes (13) are provided with valves (14).

4. The power generation device for recovering circulating water return energy according to claim 1 is characterized in that: The filtering mechanism (7) comprises a box (15), the bottom of the box (15) is fixedly mounted on the ground, an observation window (16) is provided on the front side wall of the box (15), a water inlet at the top of the box (15) is connected to a water outlet of the second water delivery pipe (13), and a water outlet at the bottom of the box (15) is connected to a water inlet of the water delivery pipe (8), a driving box (17) is fixedly mounted on the inner wall of the box (15) via a supporting seat (18), and a first driving motor (19) is fixedly mounted on the outer side wall of the box (15). A driving shaft (20) is fixedly connected to the output shaft of the first driving motor (19), and one end of the driving shaft (20) rotates through the box body (15) and the side wall of the driving box (17) to be fixedly installed with a first bevel gear (21), the upper end of the rotating shaft (22) rotates through the side wall of the driving box (17) to be fixedly connected with a second bevel gear (23), the lower end of the rotating shaft (22) is fixedly installed with a scraper (24), and the bottom of the filter screen (25) is fixedly installed on the side wall inside the box body (15) through a fixing ring (26).

5. The power generation device for recovering circulating water return energy according to claim 1 is characterized in that: It also includes a water baffle (27), the bottom of which is fixedly mounted on the top of the mounting frame (1), a water pump (28) is arranged on one side of the top of the mounting frame (1), a water inlet and a water outlet of the water pump (28) are respectively connected to a water pumping pipe (29) and a water discharge pipe (30), and the lower end of the water pumping pipe (29) is arranged at the bottom of the return well (2).

6. The power generation device for recovering circulating water return energy according to claim 1, characterized in that: The invention also comprises an auxiliary power generation mechanism (31), wherein the auxiliary power generation mechanism (31) is arranged at the bottom of the return water well (2), the auxiliary power generation mechanism (31) comprises a spiral feed pipe (32), the spiral feed pipe (32) is mounted on the mounting frame (1) and the fixing frame (9), and the lower end of the spiral feed pipe (32) is arranged at the bottom of the return water well, a housing (33) is fixedly mounted on the bottom of the mounting frame (1), and the servo motor (34) is fixedly mounted on the housing (33). 33), and the output shaft of the servo motor (34) is fixedly installed with a slide rail (35), a self-propelled trolley (36) is arranged on the slide rail (35), and the self-propelled trolley (36) is slidably connected to the slide rail (35), the top of the auxiliary box (37) is fixedly connected to the bottom of the self-propelled trolley (36) through a connecting plate (38), the installation box (39) is fixedly installed on the front side wall of the auxiliary box (37), and the suction mechanism (40) is arranged in the installation box (39).

7. A power generation device for recovering circulating water return energy according to claim 6, characterized in that: The auxiliary box (37) comprises a second drive motor (41), the second drive motor (41) is fixedly mounted on the front side wall of the auxiliary box (37), a transmission shaft (42) is fixedly mounted on the output shaft of the second drive motor (41), a support plate (43) is fixedly mounted on the front side wall of the auxiliary box (37), one end of the transmission shaft (42) rotatably passes through the support plate (43) and is fixedly connected to a worm (44), one end of the worm (44) is rotatably connected to the side wall of the auxiliary box (37), and two ends of the support shaft (45) are rotatably connected to the top and bottom of the inner wall of the auxiliary box (37), respectively. The support shaft (45) is fixedly installed with a first pulley (46) and a worm wheel (47) from top to bottom, the worm wheel (47) is meshed with the worm (44), the mounting plate (48) is fixedly installed on the outer wall of the auxiliary box (37), and the mounting plate (48) is rotatably connected to a rotating shaft (49), the upper end of the rotating shaft (49) is fixedly connected to a second pulley (50), the second pulley (50) is connected to the first pulley (46) through a belt (51), and the belt (51) passes through the side wall of the auxiliary box (37), and the lower end of the rotating shaft (49) is fixedly connected to a cleaning brush (52).

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