Drainage device and drainage method for prefabricated substation

Abstract

The invention is applicable to the technical field of substations, and provides a drainage device and drainage method for a prefabricated substation, and the drainage device comprises a prefabricated substation body, water retaining tops mounted on the two sides of the top and bottom of the prefabricated substation body, a water storage tank, and a water guide plate connected to the interior of the water retaining tops and provided with a plurality of water passing holes, the water receiving hopper is communicated with the bottom of the water retaining top, the bottom of the water receiving hopper is communicated with a drainage tank communicated with the water storage tank through a water collecting pipe, driving rods are rotationally connected to the two sides in the water collecting pipe, water wheels are installed on the driving rods, a plurality of heat conduction fins are fixedly connected to the two sides of the prefabricated substation body, and a plurality of arc-shaped filter screens are connected into the drainage tank. The prefabricated substation body is shielded through the water retaining top, rainwater is collected in combination with the drainage tank and the water storage tank, rainwater can be effectively prevented from entering the prefabricated substation body, meanwhile, ground sludge splashing caused by rainwater drainage is prevented, and in addition, heat can be guided out in combination with a plurality of heat conduction fins.

Description

Technical Field

[0001] The present invention relates to the technical field of substations, and particularly relates to a drainage device and a drainage method for a prefabricated substation. Background Art

[0002] A prefabricated substation is a power conversion device that converts high-voltage direct current into low-voltage or medium-voltage alternating current, and is commonly used in various industries such as communities and factories that require power resources. Since most prefabricated substations are installed in outdoor environments, in order to improve the waterproof effect of the prefabricated substation, a water-blocking top for drainage is usually provided at its top. However, this method has poor use effect when dealing with heavy rain;

[0003] For example, a drainage device and a drainage method for a prefabricated substation with a publication number of CN114458062A in the prior art can guide and discharge rainwater to achieve the rainwater protection effect of the prefabricated substation. However, this device is only used for drainage, and the rainwater is not effectively utilized, resulting in a certain degree of waste; at the same time, the fallen leaves and impurities blown into the fender are not cleaned synchronously, resulting in the blockage of the drainage channel and the inability to drain smoothly. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects and problems of low resource utilization rate and unsmooth drainage in the prior art, and provide a drainage device and a drainage method for a prefabricated substation with high resource utilization rate and smooth drainage.

[0005] To achieve the above purpose, the technical solution of the present invention is: A drainage device for a prefabricated substation includes a prefabricated substation body, and a water-blocking top and a water storage tank fixedly installed on both the top and bottom sides of the prefabricated substation body. A water guide plate in a human shape is fixedly connected inside the water-blocking top. A plurality of water passing holes are formed on the water guide plate. A linkage type impurity removal component is arranged between the bottom of the water guide plate and the water-blocking top. The linkage type impurity removal component is slidably connected to the water guide plate in the vertical direction. Aggregation type drainage components are arranged on both the left and right sides of the water-blocking top;

[0006] The aggregation type drainage component includes a water receiving hopper fixedly communicated with the bottom of the water-blocking top. The bottom of the water receiving hopper is communicated with a drainage tank through a water collecting pipe. The drainage tank is communicated with the water storage tank. Driving rods are symmetrically and rotatably connected to both sides inside the water collecting pipe. Water wheels are installed on the driving rods. A plurality of heat conduction fins penetrating into the interior of the drainage tank are connected to both the left and right sides of the prefabricated substation body. A plurality of interconnected arc-shaped filters are connected inside the drainage tank. A sewage pipe is fixedly communicated with one side of the drainage tank. The sewage pipe is arranged relative to the arc-shaped filter. A sewage discharge component is arranged on the upper side of the arc-shaped filter. The driving rods are connected to the linkage type impurity removal component and the sewage discharge component.

[0007] A plurality of water distribution plates are fixedly connected to the top inside the drainage tank. The sewage discharge assembly includes a plurality of rotating rods, and the plurality of rotating rods are respectively located below the plurality of water distribution plates and correspond to the plurality of arc-shaped filters one by one. The plurality of rotating rods are connected to the driving rod through a connecting member. A water distribution scraping plate is installed on the rotating rod, and one side of the water distribution scraping plate is slidably connected to the arc-shaped filter.

[0008] One end of the rotating rod is fixedly connected with a worm gear. A transmission housing is connected to the outside of the drainage tank. A second transmission rod is rotatably installed inside the transmission housing. A plurality of worm gears corresponding to the worm gears one by one are connected to the second transmission rod. The worm gear meshes with the worm after passing through the transmission housing. The second transmission rod is connected to the driving rod through a connecting member.

[0009] The connecting member includes a first bevel gear, two second bevel gears, a third bevel gear and a first transmission rod. The first bevel gear is connected to one end of the driving rod. The third bevel gear is connected to the outer peripheral surface of the second transmission rod. The two second bevel gears are connected to both ends of the first transmission rod. The two second bevel gears are respectively meshed with the first bevel gear and the third bevel gear.

[0010] Mutually meshing transmission gears are connected to the two driving rods.

[0011] The linkage type impurity removal assembly includes two groups of Z-shaped filters slidably connected between the water guide plate and the water retaining top. Guide rods slidably connected to the water retaining top are symmetrically connected to both sides of the bottom of the Z-shaped filter. A linkage rod is connected between the two guide rods. The linkage rod is located below the water retaining top. The linkage rod is connected to the driving rod through a linkage member.

[0012] Piston plates are connected to the lower ends of the two guide rods. A square cylinder is connected between the drainage tank and the prefabricated substation body. The piston plate is slidably connected to the square cylinder in the vertical direction. The square cylinder is connected to the upper sides of the plurality of heat conduction fins.

[0013] The linkage member includes two fixed shafts. The two fixed shafts are rotatably connected to the water receiving hopper and correspond to the two driving rods one by one. Sprockets are connected to the outer peripheral surfaces of the fixed shafts and the driving rods respectively. A chain is meshed with the outer peripheral surfaces of the two sprockets. A linkage sleeve is rotatably connected to the outer peripheral surface of the chain. The linkage sleeve is slidably connected to the outer peripheral surface of the linkage rod.

[0014] Z-shaped drain pipes are communicated with both the left and right sides of the bottom of the water storage tank. An upper water pipe is communicated between the water storage tank and the water retaining top. A water pump is installed on the upper water pipe.

[0015] A drainage method for a prefabricated substation, which is applied to a drainage device for a prefabricated substation. The drainage method includes the following steps:

[0016] Rainwater falls on the water-retaining top, and the water guide plate guides the rainwater to flow. The rainwater falls into the water receiving hopper through the water passing holes. At the same time, fallen leaves fall above the linkage type impurity removal component. The water receiving hopper collects the rainwater and guides it into the water collecting pipe. The sludge in the rainwater falls on the arc-shaped filter screen. The filtered rainwater passes through the heat conduction fins and takes away the heat inside, and finally falls into the water storage tank.

[0017] The water wheel rotates driven by the rainwater and makes the driving rod rotate synchronously. The rotation of the driving rod drives the linkage type impurity removal component to move back and forth in the vertical direction. The linkage type impurity removal component pushes the fallen leaves out of the water-retaining top. At the same time, the rotation of the driving rod drives the sewage discharge component to work. The sewage discharge component cleans the sludge on the arc-shaped filter screen and discharges it out of the drainage tank through the sewage discharge pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In the drainage device and drainage method for a prefabricated substation of the present invention, the prefabricated substation body is shielded by the water-retaining top, and the rainwater is collected by combining the drainage tank and the water storage tank, and the drainage drop height is reduced. It can effectively prevent rainwater from entering the interior of the prefabricated substation body and prevent the problem that the ground sludge splashes and contaminates the prefabricated substation body due to the discharge of rainwater. At the same time, with the help of the filter-type guidance of the rainwater by the water guide plate in the shape of a human figure, the fallen leaves in the water-retaining top are synchronously pushed to the two sides of the linkage type impurity removal component for collection. The arc-shaped filter screen in the water collection tank can filter the particulate impurities in the rainwater, thereby ensuring the cleanliness of the rainwater entering the water storage tank. The rainwater is gathered into the water collecting pipe through the water receiving hopper, forcing the water wheel to rotate, promoting the lifting movement of the linkage type impurity removal component and the work of the sewage discharge component, realizing the automatic cleaning of fallen leaves and particulate impurities, achieving the impurity removal and drainage effect, and further ensuring the smoothness of the drainage process. Through the contact between the falling backflow water and several heat conduction fins, the water-cooled heat exchange and cooling effect is achieved. Therefore, the present invention has high resource utilization rate and smooth drainage process.

[0020] 2. In the drainage device and drainage method for a prefabricated substation of the present invention, after the water in the water collecting pipe enters the interior of the drainage tank, a plurality of water distribution plates are provided to distribute and flow the rainwater, increasing the flow area of the rainwater inside the drainage tank to increase the contact quantity with the heat conduction fins to improve the heat exchange effect; while filtering impurities in the rainwater through the arc-shaped filter screen, the rotating rod drives the corresponding water distribution scraper to rotate, synchronously scraping the impurities filtered on the arc-shaped filter screen to avoid clogging of the mesh holes of the arc-shaped filter screen, thereby reducing the problem of the filtration flow efficiency of the rainwater inside the drainage tank. By rotating the plurality of water distribution scrapers in the same rotation direction, the impurities on the corresponding arc-shaped filter screen can be scraped to one side of the arc-shaped filter screen, thereby achieving the effect of gradually pushing the impurity particles to the sewage pipe for discharge; adopting the transmission mode of the worm and gear makes the rotation process of the water distribution scraper more stable; by providing the transmission gear, the two water wheels can rotate at the same speed, and at the same time, a plurality of rotating rods can be driven to rotate by one driving rod. Therefore, the present invention has good heat exchange effect and stable drainage process.

[0021] 3. In the drainage device and drainage method for a prefabricated substation of the present invention, when the chain rotates, it combines with the linkage sleeve to cause the linkage rod to move up and down reciprocally, combines with the guide rod to make the Z-shaped filter screen move up and down reciprocally, pushing the fallen leaves on its top to above the edge of the water retaining top, and combining with the inclined setting of the top of the Z-shaped filter screen to cause the fallen leaves to fall, completing the cleaning of the fallen leaves. It can push the fallen leaves on its top to above the edge of the water retaining top, and combining with the inclined setting of the top of the Z-shaped filter screen to cause the fallen leaves to fall, completing the cleaning of the fallen leaves. At the same time, the piston plate can slide reciprocally synchronously in the square cylinder, sucking the outside cold air into the cavity between the heat conduction fins for heat exchange and then discharging it, synchronously achieving the effect of air-cooled heat exchange and cooling, further improving the cooling effect on the prefabricated substation body. Therefore, the present invention has good heat exchange effect and relatively good filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the drainage device for a prefabricated substation and the prefabricated substation body of the present invention from one perspective.

[0023] Figure 2 is a schematic structural diagram of the drainage device for a prefabricated substation and the prefabricated substation body of the present invention from another perspective.

[0024] Figure 3 is a schematic structural diagram of the drainage device for a prefabricated substation of the present invention.

[0025] Figure 4 is a schematic structural diagram of the water retaining top and the linkage type impurity removal assembly of the present invention.

[0026] Figure 5 is a schematic structural diagram of the aggregated drainage assembly of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the water receiving hopper in the present invention.

[0028] Figure 7 It is a schematic structural diagram of the drainage tank in the present invention.

[0029] Figure 8 It is a schematic structural diagram of the heat conducting fins and the square cylinder in the present invention.

[0030] Figure 9 It is a schematic diagram of the cooperation of two groups of water wheels in the present invention.

[0031] Figure 10 It is a partial schematic structural diagram of the driving rod and the aggregated drainage assembly in the present invention.

[0032] In the figure: the prefabricated substation body 1, the water retaining top 11, the water storage tank 12, the water guide plate 13, the Z-shaped drain pipe 14, the water supply pipe 15, the water pump 16, the aggregated drainage assembly 2, the water receiving hopper 21, the water collecting pipe 22, the drainage tank 23, the driving rod 24, the water wheel 25, the heat conducting fins 26, the arc-shaped filter screen 27, the water distribution plate 28, the water distribution scraping plate 29, the sewage discharge pipe 210, the worm gear 211, the transmission housing 212, the second transmission rod 213, the worm 214, the first bevel gear 215, the third bevel gear 216, the first transmission rod 217, the second bevel gear 218, the transmission gear 219, the rotating rod 220, the linkage type impurity removal assembly 3, the Z-shaped filter screen 31, the guide rod 32, the linkage rod 33, the piston plate 34, the square cylinder 35, the fixed shaft 36, the sprocket 37, the chain 38, the linkage sleeve 39. Specific Embodiments

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1:

[0035] Refer to Figures 1 to 10 , a drainage device for a prefabricated substation, including a water retaining top 11 and a water storage tank 12 fixedly installed on both the top and bottom sides of the prefabricated substation body 1. In case of heavy rain, the rainwater falls on the water guide plate 13 of the water retaining top 11 to shield the prefabricated substation body 1, and the water storage tank 12 collects the rainwater for secondary utilization of the rainwater to achieve the water-cooling cooling treatment of the prefabricated substation body 1 when used on sunny days;

[0036] Inside the water retaining top 11, a water guiding plate 13 in a human-shaped structure is fixedly connected. A number of water passing holes are opened on the water guiding plate 13. With the water guiding plate 13 in the human-shaped structure, it is used to guide the flow of rainwater falling on the water retaining top 11, and then can drive the fallen leaves on the water retaining top 11 to move to both sides for short-term collection. Combined with the number of water passing holes opened on the water guiding plate 13, it is used to effectively separate the fallen leaf impurities from the rainwater, and at the same time avoid the problem that the drainage efficiency is reduced due to the blockage of some water passing holes by fallen leaves;

[0037] The cross-section of the water guiding plate 13 is in a stepped structure, which is used to slow down the impact force of the rainwater flowing on the water guiding plate 13, and then cause some rainwater to directly slide off the water retaining top 11. There is still some rainwater with greater kinetic energy, resulting in contact with the ground water and causing splashing of sludge water. The water passing holes are opened on the stepped inclined surface, and the water passing holes on adjacent two inclined surfaces are staggered, which is used to improve the filtering effect when the rainwater flows on the water guiding plate 13. A linkage type impurity discharging component 3 is arranged between the bottom of the water guiding plate 13 and the water retaining top 11. The linkage type impurity discharging component 3 is slidably connected to the water guiding plate 13 in the vertical direction. Aggregation type drainage components 2 are arranged on both the left and right sides of the water retaining top 11;

[0038] The aggregation type drainage component 2 includes a water receiving hopper 21 fixedly communicated with the bottom of the water retaining top 11, which is used to collect the rainwater and guide it into the water collecting pipe 22. By gathering the rainwater together for falling, the impact kinetic energy carried by the rainwater is increased. And the bottom of the water receiving hopper 21 is communicated with a drainage tank 23 through the water collecting pipe 22, and the drainage tank 23 is communicated with the water storage tank 12;

[0039] The rainwater on the water retaining top 11 enters the water storage tank 12 for collection through the water receiving hopper 21, the water collecting pipe 22 and the drainage tank 23, and is then discharged through the water storage tank 12, which can effectively reduce the drainage drop height, and then effectively avoid the problem that the rainwater enters the prefabricated substation body 1 while preventing the ground sludge from splashing and contaminating the prefabricated substation body 1 when the rainwater is discharged;

[0040] On both sides inside the water collecting pipe 22, driving rods 24 are symmetrically and rotatably connected, and water wheels 25 are installed on the driving rods 24. The gathered rainwater discharged from the water receiving hopper 21 carries greater impact kinetic energy. When the rainwater descends in the water collecting pipe 22, it drives the two water wheels 25 to rotate relatively, and synchronously causes the corresponding driving rods 24 to rotate. A number of heat conducting fins 26 penetrating into the drainage tank 23 are fixedly connected to both sides of the prefabricated substation body 1;

[0041] In sunny weather, the heat generated inside the prefabricated substation body 1 is transferred to the drainage tank 23 through multiple heat-conducting fins 26. At this time, through the flow of water from top to bottom inside the drainage tank 23, the water contacts the heat-conducting fins 26 and takes away the heat contained therein, achieving the effect of water-cooled heat exchange and cooling for the prefabricated substation body 1. A plurality of interconnected arc-shaped filters 27 are fixedly connected inside the drainage tank 23. One side of the drainage tank 23 is fixedly communicated with a sewage discharge pipe 210. The sewage discharge pipe 210 is arranged relative to the arc-shaped filter 27. A sewage discharge assembly is arranged above the arc-shaped filter 27. The driving rod 24 is connected to the linkage type impurity removal assembly 3 and the sewage discharge assembly. The arc-shaped filter 27 inside the drainage tank 23 filters the particulate impurities in the rainwater, and the impurities are pushed to the sewage discharge pipe 210 by the sewage discharge assembly for discharge, so as to ensure the cleanliness of the rainwater entering the water storage tank 12;

[0042] A drainage method for a prefabricated substation, the drainage method comprising the following steps:

[0043] Rainwater falls on the water-blocking top 11, and the water guide plate 13 guides the rainwater to flow. The rainwater falls into the water receiving hopper 21 through the water passing holes. At the same time, fallen leaves fall above the linkage type impurity removal assembly 3. The water receiving hopper 21 collects the rainwater and guides it into the water collecting pipe 22. The sludge in the rainwater falls on the arc-shaped filter 27. The filtered rainwater passes through the heat-conducting fins 26 and takes away the heat inside, and finally falls into the water storage tank 12;

[0044] The water wheel 25 rotates driven by the rainwater and makes the driving rod 24 rotate synchronously. The rotation of the driving rod 24 drives the linkage type impurity removal assembly 3 to move back and forth in the vertical direction. The linkage type impurity removal assembly 3 pushes the fallen leaves out of the water-blocking top 11. At the same time, the rotation of the driving rod 24 drives the sewage discharge assembly to work, and the sewage discharge assembly cleans the sludge on the arc-shaped filter 27 and discharges it from the sewage discharge pipe 210 out of the drainage tank 23.

[0045] Embodiment 2:

[0046] The basic content is equivalent to that of Embodiment 1, the difference being:

[0047] See Figure 7 , a plurality of water distribution plates 28 are fixedly connected to the top inside the drainage tank 23. The plurality of water distribution plates 28 are symmetrically distributed in an octagonal shape. After the water in the water collecting pipe 22 enters the inside of the drainage tank 23, the rainwater is distributed and flowed through the plurality of water distribution plates 28, increasing the flow area of the rainwater inside the drainage tank 23, so as to increase the contact quantity with the heat-conducting fins 26 to improve the heat exchange effect;

[0048] The sewage discharge assembly includes a plurality of rotating rods 220. The plurality of rotating rods 220 are rotatably connected inside the drainage tank 23. The rotating rods 220 coincide with the axis of the corresponding arc-shaped filter 27, and a water distribution scraping plate 29 sliding with the corresponding arc-shaped filter 27 is installed on the rotating rod 220;

[0049] While filtering impurities in rainwater through the arc-shaped filter screen 27, the rotating rod 220 drives the corresponding water distribution scraper 29 to rotate, simultaneously scraping the impurities filtered on the arc-shaped filter screen 27, avoiding the blockage of the mesh holes of the arc-shaped filter screen 27, and further reducing the problem of the filtration flow efficiency of rainwater inside the drainage tank 23. And through the co-rotating of multiple water distribution scrapers 29, the impurities on the corresponding arc-shaped filter screen 27 can be scraped to one side of the arc-shaped filter screen 27, thereby achieving the effect of gradually pushing the impurity particles to the sewage discharge pipe 210 for discharge.

[0050] See Figure 3 and Figure 10 One end of the rotating rod is fixedly connected with a worm gear 211. One side of the drainage tank 23 is fixedly connected with a transmission housing 212. The worm gear 211 and the transmission housing 212 are arranged on the side of the drainage tank 23 away from the prefabricated substation body 1 to avoid interfering with the setting of the heat conduction fins 26. A second transmission rod 213 is rotatably installed inside the transmission housing 212. A worm 214 meshing with the corresponding worm gear 211 is fixedly connected to the second transmission rod 213. The second transmission rod 213 drives the rotating rods carrying multiple water distribution scrapers 29 to perform secondary deceleration and co-rotate through the meshing worm 214 and worm gear 211.

[0051] The connecting piece includes a first bevel gear 215, two second bevel gears 218, a third bevel gear 216 and a first transmission rod 217. The first bevel gear 215 is connected to one end of the driving rod 24. The third bevel gear 216 is connected to the outer peripheral surface of the second transmission rod 213. The two second bevel gears 218 are connected to both ends of the first transmission rod 217. The two second bevel gears 218 are respectively meshed with the first bevel gear 215 and the third bevel gear 216;

[0052] The size of the third bevel gear 216 is larger than that of the second bevel gear 218, thereby achieving the effect of speed reduction transmission. When the driving rod 24 rotates, the first transmission rod 217 is driven to rotate through the meshing first bevel gear 215 and the corresponding second bevel gear 218. The first transmission rod 217 drives the second transmission rod 213 to perform primary deceleration rotation through the meshing third bevel gear 216 and the corresponding second bevel gear 218. Combined with the secondary deceleration of the worm 214 and the worm gear 211, the water distribution scraper 29 is promoted to rotate slowly.

[0053] A water guide slope is installed at the bottom inside the water retaining top 11. Rainwater enters the inside of the water retaining top 11 through a number of water passing holes. Under the guidance of the water guide slope, the rainwater is quickly drained to the two side water receiving hoppers 21 for collective inflow into the water collecting pipe 22, further increasing the impact kinetic energy carried during the falling process of the rainwater and assisting the water wheel 25 to rotate rapidly. Two driving rods 24 are fixedly installed with meshing transmission gears 219. Through the arranged transmission gears 219, the two water wheels 25 are made to rotate at the same speed, and the effect of assisting one of the driving rods 24 to drive a plurality of rotating rods to rotate is achieved.

[0054] Embodiment 3:

[0055] The basic content is the same as that of Embodiment 1, and the differences are as follows:

[0056] See Figure 4 、 Figure 5 、 Figure 9 and Figure 10 , the linkage type impurity removal assembly 3 includes two Z-shaped filters 31 slidably connected between the water guide plate 13 and the water retaining top 11. During the process of rainwater flowing on the water guide plate 13, the fallen leaves on the water guide plate 13 are carried and pushed to the two side Z-shaped filters 31 for temporary storage, and the Z-shaped filters 31 will not interfere with the discharge of the rainwater inside the water retaining top 11;

[0057] During the upward movement of the Z-shaped filter 31, its vertical section slides with the end of the water guide plate 13 to prevent impurities on the water guide plate 13 from entering the inside of the water retaining top 11. The end of the inclined section above the Z-shaped filter 31 slides with the inner wall of the water retaining top 11. With the upward movement of the Z-shaped filter 31 and the inclined setting at the top of the Z-shaped filter 31, the fallen leaves are caused to fall to complete the cleaning of the fallen leaves. Symmetrically connected to both sides of the bottom of the Z-shaped filter 31 are guide rods 32 slidably connected to the water retaining top 11, which are used to realize the stable lifting movement of the Z-shaped filter 31.

[0058] A linkage rod 33 is connected between the guide rods 32 and below the water retaining top 11, and a piston plate 34 is connected between the ends of the guide rods 32. A square cylinder 35 slidable with the piston plate 34 is fixedly connected between the drainage tank 23 and the prefabricated substation body 1, and the square cylinder 35 is fixedly connected with a number of heat conducting fins 26;

[0059] The linkage rod 33 drives the piston plate 34 to slide in the square cylinder 35 through the guide rods 32. When the piston plate 34 rises, the air in the cavity between the heat conducting fins 26 is extracted, guiding the outside cold air to enter and absorbing part of the heat on the heat conducting fins 26. Then, with the downward movement of the piston plate 34, the heat exchanged cold air is discharged again, promoting water cooling while simultaneously performing air cooling treatment to further improve the cooling effect on the prefabricated substation body 1.

[0060] Two sets of fixed shafts 36 are rotatably mounted on the water receiving bucket 21. The fixed shafts 36 are located directly above the corresponding driving rods 24 and are used to mount two sets of sprockets 37 therein, and enable the two sets of chains 38 to drive the corresponding linkage sleeves 39 to move in the vertical direction. The fixed shafts 36 and the driving rods 24 are both mounted with sprockets 37. The upper and lower sprockets 37 are connected by the chains 38. The linkage sleeves 39 that slide with the linkage rods 33 are rotatably mounted on the chains 38.

[0061] During the rotation of the two sets of driving rods 24, the chain 38 is driven to rotate by the sprocket 37. When the chain 38 rotates, the linkage sleeve 39 causes the linkage rod 33 to reciprocate up and down, and the guide rod 32 causes the Z-type filter 31 to reciprocate and lift, pushing the fallen leaves on the top to the top of the water retaining top 11, and combined with the inclined setting of the top of the Z-type filter 31, the fallen leaves are caused to fall, completing the cleaning of the fallen leaves.

[0062] Embodiment 4:

[0063] The basic content is the same as that of Example 1, except that:

[0064] See also Figure 2 and Figure 3 The bottoms of both sides of the water tank 12 are connected with Z-shaped drainage pipes 14. The Z-shaped drainage pipes 14 are arranged so that rainwater falls and is collected inside the water tank 12. When the water level inside the water tank 12 is higher than the outlet of the Z-shaped drainage pipes 14, the excess rainwater will be automatically discharged. When the water inside the water tank 12 is stagnant for a period of time and it suddenly rains heavily, the water retaining top 11 is prompted to collect rainwater and discharge it through the water tank 12. The fine particles of impurities that are still at the bottom of the water tank 12 will be automatically discharged along with the water, thereby achieving a certain self-cleaning effect on the inside of the water tank 12.

[0065] An upper water pipe 15 is fixedly connected between the water storage tank 12 and the water retaining roof 11, and a water pump 16 is installed on the upper water pipe 15. On sunny days, the heat generated inside the prefabricated substation body 1 is transferred to the drainage tank 23 through a plurality of heat-conducting fins 26. The water pump 16 is started to pump the rainwater stored in the water storage tank 12 to the inside of the water retaining roof 11 through the upper water pipe 15. The water flows from top to bottom in the drainage tank 23, contacts the heat-conducting fins 26 and takes away the heat contained therein, thereby achieving the effect of secondary utilization of rainwater.

[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drainage device for a prefabricated substation, comprising a water retaining roof (11) and a water storage tank (12) fixedly mounted on both sides of the top and bottom of a prefabricated substation body (1), characterized in that: Inside the water retaining top (11), a water guiding plate (13) in a human shape is fixedly connected. A plurality of water passing holes are formed in the water guiding plate (13). At the bottom of the water guiding plate (13) and the water retaining top (11), a linkage type impurity discharging assembly (3) is provided. The linkage type impurity discharging assembly (3) is slidably connected to the water guiding plate (13) in the vertical direction. On both the left and right sides of the water retaining top (11), an aggregated drainage assembly (2) is provided. The aggregated drainage assembly (2) includes a water receiving hopper (21) fixedly communicated with the bottom of the water retaining top (11). The bottom of the water receiving hopper (21) is communicated with a drainage tank (23) through a water collecting pipe (22). The drainage tank (23) communicates with a water storage tank (12). On both sides inside the water collecting pipe (22), driving rods (24) are symmetrically and rotatably connected. Water wheels (25) are installed on the driving rods (24). On both the left and right sides of the prefabricated substation body (1), a plurality of heat conducting fins (26) penetrating into the interior of the drainage tank (23) are connected. Inside the drainage tank (23), a plurality of interconnected arc-shaped filters (27) are connected. On one side of the drainage tank (23), a sewage discharge pipe (210) is fixedly communicated. The sewage discharge pipe (210) is arranged relative to the arc-shaped filter (27). Above the arc-shaped filter (27), a sewage discharging assembly is provided. The driving rod (24) is connected to the linkage type impurity discharging assembly (3) and the sewage discharging assembly.

2. The drainage device for a prefabricated substation according to claim 1, characterized in that: At the top inside the drainage tank (23), a plurality of water distributing plates (28) are fixedly connected. The sewage discharging assembly includes a plurality of rotating rods (220). The plurality of rotating rods (220) are respectively located below the plurality of water distributing plates (28) and correspond to the plurality of arc-shaped filters (27) one by one. The plurality of rotating rods (220) are connected to the driving rod (24) through connecting members. Water distributing scraping plates (29) are installed on the rotating rods (220). One side of the water distributing scraping plate (29) is slidably connected to the arc-shaped filter (27).

3. The drainage device for a prefabricated substation according to claim 2, characterized in that: One end of the rotating rod (220) is fixedly connected with a worm gear (211). The outside of the drainage tank (23) is connected with a transmission housing (212). Inside the transmission housing (212), a second transmission rod (213) is rotatably installed. A plurality of worm shafts (214) corresponding to the worm gears (211) one by one are connected to the second transmission rod (213). After passing through the transmission housing (212), the worm gear (211) is meshed with the worm shaft (214). The second transmission rod (213) is connected to the driving rod (24) through a connecting member.

4. A drainage device for a prefabricated substation according to claim 3, characterized in that: The connecting member includes a first bevel gear (215), two second bevel gears (218), a third bevel gear (216), and a first transmission rod (217). One end of the first bevel gear (215) is connected to the driving rod (24). The third bevel gear (216) is connected to the outer peripheral surface of the second transmission rod (213). The two second bevel gears (218) are connected to both ends of the first transmission rod (217). The two second bevel gears (218) are respectively meshed with the first bevel gear (215) and the third bevel gear (216).

5. The drainage device for a prefabricated substation according to claim 1, characterized in that: Meshing transmission gears (219) are connected to the two driving rods (24).

6. The drainage device for a prefabricated substation according to claim 1, characterized in that: The linkage type impurity removal assembly (3) includes two groups of Z-shaped filter screens (31) slidably connected between the water guide plate (13) and the water retaining top (11). Symmetrically connected to both sides of the bottom of the Z-shaped filter screen (31) are guide rods (32) slidably connected to the water retaining top (11). A linkage rod (33) is connected between the two guide rods (32). The linkage rod (33) is located below the water retaining top (11). The linkage rod (33) is connected to the driving rod (24) through a linkage member.

7. The drainage device for a prefabricated substation according to claim 6, characterized in that: The lower ends of the two guide rods (32) are connected with a piston plate (34). A square cylinder (35) is connected between the drainage tank (23) and the prefabricated substation body (1). The piston plate (34) is slidably connected in the square cylinder (35) in the vertical direction. The square cylinder (35) is connected to the upper sides of a plurality of the heat conducting fins (26).

8. The drainage device for a prefabricated substation according to claim 7, characterized in that: The linkage member includes two fixed shafts (36). The two fixed shafts (36) are rotatably connected to the water receiving hopper (21) and correspond to the two driving rods (24) one by one. Sprockets (37) are connected to the outer peripheral surfaces of the fixed shafts (36) and the driving rods (24). A chain (38) is meshedly connected to the outer peripheral surfaces of the two sprockets (37). A linkage sleeve (39) is rotatably connected to the outer peripheral surface of the chain (38). The linkage sleeve (39) is slidably connected to the outer peripheral surface of the linkage rod (33).

9. The drainage device for a prefabricated substation according to claim 1, wherein: Z-shaped drain pipes (14) are communicated with both the left and right sides of the bottom of the water storage tank (12). An upper water pipe (15) is communicated between the water storage tank (12) and the water retaining top (11). A water pump (16) is installed on the upper water pipe (15).

10. A drainage method for a prefabricated substation, characterized in that: This drainage method is applied to a drainage device for a prefabricated substation according to claim 1. The drainage method includes the following steps: Rainwater falls on the water retaining top (11). The water guide plate (13) guides the rainwater to flow. The rainwater passes through the water passing holes and falls into the water receiving hopper (21). At the same time, fallen leaves fall above the linkage type impurity removal assembly (3). The water receiving hopper (21) collects the rainwater and guides it into the water collecting pipe (22). The sludge in the rainwater falls on the arc-shaped filter screen (27). The filtered rainwater passes through the heat conducting fins (26) and takes away the heat inside them, and finally falls into the water storage tank (12). The water wheel (25) rotates driven by rainwater and causes the drive rod (24) to rotate synchronously. The rotation of the drive rod (24) drives the linkage type impurity removal assembly (3) to move back and forth in the vertical direction. The linkage type impurity removal assembly (3) pushes the fallen leaves out of the water retaining top (11). At the same time, the rotation of the drive rod (24) drives the sewage discharge assembly to work. The sewage discharge assembly cleans the sludge on the arc-shaped filter screen (27) and discharges it through the sewage discharge pipe (210) from the drainage tank (23).

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