Rotational flow well water inlet system

Abstract

The utility model belongs to the technical field of water inlet and drainage systems, and discloses a rotational flow well water inlet system which comprises a water inlet channel, a filtering device and a water pumping device. The downstream of the water inlet channel communicates with the cyclone well. The filtering device comprises a frame body and a first-stage filtering piece, the frame body is detachably arranged in the water inlet channel, and a water inlet and a water outlet are formed in the two opposite sides in the water flow direction respectively; the first-stage filter part is arranged in the frame body and comprises a U-shaped filter screen and two side surface filter screens, the two side surface filter screens are respectively connected to two U-shaped side edges of the U-shaped filter screen so as to define a filter cavity with an opening with the U-shaped filter screen, the opening faces the water inlet, and the two side surface filter screens are both connected with the frame body. The water pumping device is configured to be located in the swirl well. The filtering device is clamped in the water inlet channel, floating objects in water can be automatically and completely filtered, manual fishing is not needed any more, and the labor amount of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water inlet and outlet systems, in particular to a vortex well water inlet system. Background Art

[0002] During the continuous casting of steel, water is needed to flush the billet to cool it. The flushing water will carry the iron slag dropped from the billet into the vortex well. In order to save water, the water in the vortex well will be recycled into the water pool for recycling. The iron slag at the bottom of the vortex well can also be taken out for secondary utilization.

[0003] At present, water pumps are often used to extract wastewater from vortex wells for recycling. However, wastewater flowing into vortex wells often carries some floating objects, such as plastics, rubber rings, etc. If the pump head is directly placed into the vortex well for pumping, the floating objects will be adsorbed onto the pump head, causing the pump to be blocked, and the wastewater cannot be completely recycled, affecting production water. Therefore, it is necessary to clean the floating objects in the vortex well water before recycling. The commonly used cleaning method is manual salvage. However, there will always be water flowing into the vortex well. On the one hand, manual salvage cannot completely clean the floating objects. On the other hand, the labor is large, time-consuming, and the work efficiency is low. Utility Model Content

[0004] The utility model aims to provide a vortex well water inlet system, which is convenient for cleaning floating objects in the water flow, reduces the workload of staff, reduces time costs, improves work efficiency, and can improve the cleaning effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vortex well water inlet system, comprising:

[0007] A water inlet channel, wherein the downstream of the water inlet channel is connected to the vortex well;

[0008] A filter device, comprising a frame and a primary filter element, wherein the frame is detachably mounted in the water inlet channel, and a water inlet and a water outlet are respectively provided on opposite sides of the frame along the water flow direction, and the water flow can flow into the frame through the water inlet and flow out of the frame from the water outlet; the primary filter element is arranged in the frame; the primary filter element comprises a U-shaped filter screen and two side filter screens, the two side filter screens are respectively connected to the two U-shaped sides of the U-shaped filter screen, so as to enclose a filter chamber with an opening with the U-shaped filter screen, the opening of the filter chamber faces the water inlet, and the two side filter screens are both connected to the frame;

[0009] The pumping device is configured to be arranged in the vortex well.

[0010] Optionally, the filtration device further comprises at least one secondary filter element, wherein the secondary filter element is disposed in the frame and located between the primary filter element and the water outlet, and the filtration accuracy of the secondary filter element is greater than the filtration accuracy of the primary filter element.

[0011] Optionally, the frame is provided with at least one clamping rod on both sides opposite to each other along the width direction of the water inlet channel, and the two side walls of the water inlet channel along its own width direction are provided with at least one groove, and the clamping rod can be clamped in the groove in a one-to-one correspondence.

[0012] Optionally, the clamping rod includes a first rod body and a second rod body that are vertically connected, and one end of the first rod body away from the second rod body is connected to the frame body; the groove includes a first groove section and a second groove section that are vertically connected, the first rod body is mounted on the inner wall of the first groove section, and the second rod body is inserted into the second groove section.

[0013] Optionally, the filtering device further comprises an extraction member, the extraction member comprises a handle portion and a connecting portion, and the handle portion is connected to the frame body via the connecting portion.

[0014] Optionally, the frame includes:

[0015] Two side frames, the two side frames are arranged at intervals along the width direction of the water inlet channel, and the two side filter screens are respectively connected to the two side frames;

[0016] Two front cross bars arranged at intervals and two rear cross bars arranged at intervals, the two front cross bars and the two rear cross bars are opposite to each other, and the front cross bars and the rear cross bars both extend along the width direction of the water inlet channel; both ends of the two front cross bars and the two rear cross bars are respectively connected to the two side frames; the water inlet is between the two front cross bars, and the water outlet is between the two rear cross bars;

[0017] The U-shaped filter screen, the front cross bar and the rear cross bar are all adjustable in size along the width direction of the water inlet channel.

[0018] Optionally, the U-shaped filter includes a first U-shaped filter and a second U-shaped filter, the first U-shaped filter and the second U-shaped filter at least partially overlap, one of the side filters is connected to an end of the first U-shaped filter away from the second U-shaped filter, and the other side filter is connected to an end of the second U-shaped filter away from the first U-shaped filter, and the overlapping length of the first U-shaped filter and the second U-shaped filter is adjustable.

[0019] Optionally, the front cross bar and the rear cross bar both include a first adjusting rod and a second adjusting rod, the first adjusting rod and the second adjusting rod are respectively connected to the two side frames, the first adjusting rod is hollow inside, one end of the second adjusting rod extends into the first adjusting rod, and the length of the second adjusting rod inside the first adjusting rod is adjustable.

[0020] Optionally, the frame includes at least one first vertical rod, and two ends of the first vertical rod are detachably connected to the two front cross bars respectively;

[0021] And / or, the frame includes at least one second vertical rod, and two ends of the second vertical rod are detachably connected to the two rear cross bars.

[0022] Optionally, the surfaces of the frame, the primary filter element and the secondary filter element are all provided with an anti-corrosion coating.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a vortex well water inlet system, including a water inlet channel, a filter device and a pumping device, wherein the filter device includes a frame and a primary filter, and the frame is provided with a water inlet and a water outlet. When cleaning the floating objects carried in the water flow entering the vortex well, the frame is clamped in the water inlet channel, and the water flow in the water inlet channel will first flow into the frame from the water inlet, then be filtered by the primary filter, flow out of the frame from the water outlet, and merge into the vortex well, and finally the pumping device is used to extract the water in the vortex well to realize recycling. The frame is clamped in the water inlet channel and is located upstream of the vortex well. Before the water flow merges into the vortex well, the primary filter will filter out the floating objects carried in the water flow, so that the floating objects in the water flow can be better cleaned, and the water flow merged into the vortex well does not carry floating objects, so there is no need to perform manual salvage, which can reduce the workload of the staff, reduce time costs, and improve work efficiency. In addition, the iron slag in the water flow can also enter the vortex well through the primary filter element, which can realize the recycling of the iron slag and save resources. Moreover, the filter device can be detachably mounted in the water inlet channel, and is firmly installed in the water inlet channel, and is not easily displaced under the impact of the water flow, ensuring the reliability of cleaning. After the filter device is removed from the water inlet channel, it is easy to inspect and maintain. In addition, the U-shaped filter screen and the two side filter screens form a filter chamber with an opening, and the water entering from the opening is filtered through the U-shaped filter screen and the two side filter screens. The entire primary filter element has a large filtering area, which improves the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the vortex well water inlet system provided by the embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of a filtering device provided by an embodiment of the utility model;

[0027] Figure 3 It is a front view of the filtering device provided by an embodiment of the utility model.

[0028] In the figure:

[0029] 100. Swirl well;

[0030] 1. Water inlet channel;

[0031] 2. Filter device; 21. Frame; 211. Water inlet; 212. Water outlet; 213. Connecting rod; 2131. First rod body; 2132. Second rod body; 214. Side frame; 215. Front cross bar; 216. Rear cross bar; 217. First vertical rod; 218. Second vertical rod; 22. Primary filter element; 221. U-shaped filter screen; 222. Side filter screen; 3. Pumping device. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] This embodiment provides a vortex well water inlet system, such as Figure 1 and Figure 2As shown, it includes a water inlet channel 1, a filter device 2 and a pumping device 3. All industrial water in the metallurgical process will flow into the water inlet channel 1, and the downstream of the water inlet channel 1 is connected to the vortex well 100, and the vortex well 100 can be used to collect all industrial water. The filter device 2 is located between the water inlet channel 1 and the vortex well 100, and all water flows in the water inlet channel 1 will enter the vortex well 100 through the filter device. The filter device 2 includes a frame 21 and a primary filter element 22, wherein the frame 21 is clamped in the water inlet channel 1, and the frame 21 is provided with a water inlet 211 and a water outlet 212 on opposite sides along the water flow direction, respectively, and the water flow in the water inlet channel 1 can flow into the frame 21 through the water inlet 211, and then flow out of the frame 21 from the water outlet 212. The primary filter 22 is disposed in the frame 21, and includes a U-shaped filter 221 and two side filters 222. The two side filters 222 are respectively connected to the two U-shaped sides of the U-shaped filter 221, thereby forming a filter chamber with an opening with the U-shaped filter 221. The opening of the filter chamber faces the direction of the water inlet 211, and the two side filters 222 are connected to the frame 21. The pumping device 3 is configured to be located in the vortex well 100, and is used to recycle the industrial water collected in the vortex well 100 into the water pool for recycling. When cleaning the floating objects carried in the water flow entering the vortex well 100, the frame 21 is clamped in the water inlet channel 1 and placed between the water inlet channel 1 and the vortex well 100. The water flow in the water inlet channel 1 will first flow into the frame 21 from the water inlet 211, then be filtered by the primary filter 22, flow out of the frame 21 from the water outlet 212, and merge into the vortex well 100. Finally, the pumping device 3 is used to extract the water in the vortex well 100 to achieve recycling. The frame 21 is clamped in the water inlet channel 1 and is located upstream of the vortex well 100. Before the water flow merges into the vortex well 100, the primary filter 22 will automatically filter out the floating objects carried in the water flow, so that the floating objects in the water flow can be better cleaned, and the water flow merged into the vortex well 100 does not carry floating objects, so there is no need to perform manual salvage, which can reduce the workload of the staff, reduce time costs, and improve work efficiency. In addition, the iron slag in the water flow can also enter the vortex well 100 through the primary filter element 22, which can realize the recycling of the iron slag and save resources. Moreover, the filter device 2 is detachably mounted in the water inlet channel 1, and is firmly installed in the water inlet channel 1, and is not easily displaced under the impact of the water flow, ensuring the reliability of cleaning. After the filter device 2 is removed from the water inlet channel 1, it is easy to inspect and maintain. In addition, the U-shaped filter screen 221 and the two side filter screens 222 form a filter chamber with an opening, and the water entering from the opening is filtered through the U-shaped filter screen 221 and the two side filter screens 222. The entire primary filter element 22 has a large filtering area, which can improve the filtering effect.

[0037] Exemplarily, the pumping device 3 is a water pump.

[0038] Optionally, the filter device 2 further includes at least one secondary filter element, which is disposed in the frame 21 and between the primary filter element 22 and the water outlet 212. After the water flow in the water inlet channel 1 enters the frame 21 from the water inlet 211, the primary filter element 22 first preliminarily filters the floating objects in the water, and then the secondary filter element performs secondary filtration. The filtering accuracy of the secondary filter element is greater than the filtering accuracy of the primary filter element 22, so the floating objects in the water flow will be further cleaned, thereby better ensuring that the water flow entering the vortex well 100 does not carry floating objects, preventing the floating objects from clogging the pumping device 3, and facilitating the recycling of wastewater.

[0039] Exemplarily, a stainless steel filter screen is selected as the primary filter element 22 and the secondary filter element.

[0040] Alternatively, if Figure 3 As shown, at least one clamping rod 213 is provided on both sides of the frame 21 opposite to each other along the width direction of the water inlet channel 1, and the clamping rod 213 is connected to both sides of the frame 21, and at least one groove (not shown in the figure) is provided on both side walls of the water inlet channel 1 along its own width direction. When the frame 21 is placed in the water inlet channel 1, the clamping rod 213 can be clamped in the groove one by one, so that the frame 21 is clamped in the water inlet channel 1 as a whole, and the clamping rod 213 cooperates with the groove so that the frame 21 can be stably clamped in the water inlet channel 1, preventing the frame 21 from being moved due to the impact of the water flow and then being washed into the vortex well 100, thereby ensuring the filtering effect of the filtering device 2 and preventing floating objects from entering the vortex well 100 to increase the workload.

[0041] In this embodiment, a clamping rod 213 is provided on both sides of the frame 21 opposite to each other along the width direction of the water inlet channel 1, and correspondingly, a groove is provided on both side walls of the water inlet channel 1 along its own width direction. In other embodiments, two or more clamping rods 213 and grooves can be provided as needed to increase the clamping force and improve the stability of the frame 21, which is not limited here.

[0042] Optionally, the clamping rod 213 includes a first rod body 2131 and a second rod body 2132 that are vertically connected. Figure 3, one end of the first rod body 2131 away from the second rod body 2132 is connected to the frame 21, the extension direction of the first rod body 2131 is consistent with the width direction of the water inlet channel 1, and the second rod body 2132 extends vertically. The groove includes a first groove section and a second groove section that are vertically connected. When the clamping rod 213 is clamped into the groove, the first rod body 2131 is arranged in the first groove section, and the second rod body 2132 is inserted in the second groove section. By providing the first rod body 2131 and the second rod body 2132 that are vertically connected, and the first groove section and the second groove section that are vertically connected, the clamping strength between the clamping rod 213 and the groove can be further increased, the stability of the clamping of the frame 21 can be enhanced, and the frame 21 can be prevented from shifting and loosening due to the impact of water flow, thereby ensuring the filtering effect of the filter device 2.

[0043] In other embodiments, the first rod body 2131 can be connected only on both sides of the frame body 21, and the groove only has the first groove section; or, the extension direction of the first rod body 2131 can be set to be consistent with the width direction of the water inlet channel 1, and the extension direction of the second rod body 2132 is consistent with the water flow direction and is perpendicular to the first rod body 2131. At this time, the shape and position of the groove are adapted to the first rod body 2131 and the second rod body 2132.

[0044] Optionally, the filter device 2 also includes an extraction member, which includes a handle and a connecting portion, one end of the connecting portion is connected to the frame 21, and the other end is connected to the handle. When it is necessary to filter the water flow, the staff can hold the handle and clamp the filter device 2 into the water inlet channel 1. When there is no more water flow in the water inlet channel 1, or when there are many floating objects in the filter device 2 that need to be cleaned, the staff can grab the handle and extract the filter device 2 upward, separate the clamping rod 213 from the groove, and continue to lift it upward until the filter device 2 is taken out of the water inlet channel 1. By providing the extraction portion, it is convenient for the staff to clamp or extract the filter device 2, and it is convenient to clean the floating objects in the filter device 2, which can improve work efficiency.

[0045] Alternatively, if Figure 2As shown, the frame 21 includes two side frames 214, two spaced front cross bars 215 and two spaced rear cross bars 216. The two side frames 214 are spaced apart along the width direction of the water inlet channel 1, and the two side filter screens 222 are respectively connected to the two side frames 214. The two front cross bars 215 and the two rear cross bars 216 are opposite to each other, and the front cross bars 215 and the rear cross bars 216 extend along the width direction of the water inlet channel 1. The two ends of the two front cross bars 215 and the two ends of the two rear cross bars 216 are respectively connected to the two side frames 214. The water inlet 211 is between the two front cross bars 215, and the water outlet 212 is between the two rear cross bars 216. The U-shaped filter screen 221, the front cross bar 215 and the rear cross bar 216 are all adjustable in size along the width direction of the water inlet channel 1. When the frame 21 is inserted into the water inlet channel 1, the length of the front cross bar 215 and the rear cross bar 216 is first adjusted according to the width of the water inlet channel 1, and the length of the U-shaped filter 221 will also change accordingly, so that the width of the frame 21 is consistent with the width of the water inlet channel 1, and then the frame 21 is placed and inserted into the water inlet channel 1. By adjusting the length of the U-shaped filter 221, the front cross bar 215 and the rear cross bar 216, it can be ensured that the frame 21 can be just inserted into the water inlet channel 1, so that there is no gap between the frame 21 and the two sides of the water inlet channel 1, which can prevent floating objects from entering the vortex well 100 and avoid increasing the workload of cleaning floating objects. In addition, the U-shaped filter 221, the front cross bar 215 and the rear cross bar 216 are adjustable in size along the width direction of the water inlet channel 1, so that the frame 21 can be applied to water inlet channels 1 of various widths, and has strong versatility.

[0046] Optionally, the U-shaped filter screen 221 includes a first U-shaped filter disc and a second U-shaped filter disc. The first U-shaped filter disc and the second U-shaped filter disc at least partially overlap, and the overlapping portion is located inside the frame 21, wherein a side filter screen 222 is connected to an end of the first U-shaped filter disc away from the second U-shaped filter disc, and another side filter screen 222 is connected to an end of the second U-shaped filter disc away from the first U-shaped filter disc, and the overlapping length of the first U-shaped filter disc and the second U-shaped filter disc is adjustable. When the length of the front side cross bar 215 and the rear side cross bar 216 is adjusted according to the width of the water inlet channel 1, the interval between the two side frames 214 of the frame 21 increases or decreases, and the two side filter screens 222 are respectively connected to the two side frames 214, so the spacing between the two side filter screens 222 will also increase or decrease, thereby driving the first U-shaped filter disc and the second U-shaped filter disc to move in a direction away from or close to each other, thereby adjusting the overlapping length of the first U-shaped filter disc and the second U-shaped filter disc. By arranging overlapping first U-shaped filter disc and second U-shaped filter disc, and cooperating with front cross bar 215 and rear cross bar 216, the U-shaped filter screen 221 can be adjusted in the width direction of water inlet channel 1, with simple structure and convenient operation.

[0047] Optionally, the front cross bar 215 and the rear cross bar 216 each include a first adjustment rod, a second adjustment rod and a fixing member. The first adjustment rod and the second adjustment rod are respectively connected to the two side frames 214, the first adjustment rod is hollow inside, and at least two sockets 1 are axially arranged on the first adjustment rod (illustratively, three sockets 1 are arranged in this embodiment). A socket 2 is arranged on the second adjustment rod, and the second adjustment rod can be extended into the first adjustment rod, and the length in the first adjustment rod is adjustable. The fixing member can be inserted into the socket 1 and the socket 2. When the first adjustment rod and the second adjustment rod are connected, the second adjustment rod is extended into the first adjustment rod so that the socket 2 overlaps with a socket 1, and then the fixing member is inserted into the socket 1 and the socket 2, so that the length of the front cross bar 215 and the rear cross bar 216 is fixed. When adjusting the length of the front cross bar 215 and the rear cross bar 216, first remove the fixing piece, pull out the second adjustment rod or extend it inward, so that the second socket coincides with the other socket one on the axis of the first adjustment rod, and finally insert the fixing piece into the socket one and the socket two, so as to adjust the length. The socket one, the socket two and the fixing piece cooperate to realize the flexible adjustment of the length of the front cross bar 215 and the rear cross bar 216, and the structure is simple and easy to operate.

[0048] For example, a bolt can be used as the fixing member. The fixing member passes through the first and second adjustment rods through the first and second insertion holes and is screwed with the nut. In other embodiments, parts such as screws can also be used as the fixing member, which is not limited here.

[0049] Alternatively, if Figure 2 As shown, the frame 21 includes at least one first vertical rod 217, and the two ends of the first vertical rod 217 are detachably connected between the two front cross bars 215. The frame 21 also includes at least one second vertical rod 218, and the two ends of the second vertical rod 218 are detachably connected between the two rear cross bars 216. When filtering floating objects, the first vertical rod 217 and the second vertical rod 218 are respectively connected between the two front cross bars 215 and between the two rear cross bars 216, so as to enhance the overall strength of the frame 21 and prevent deformation caused by water flow impact. When cleaning the floating objects accumulated in the filter device 2, the first vertical rod 217 can be disassembled to increase the area of ​​the water inlet 211, so that the staff can extend the cleaning tool into the frame 21, and the floating objects on the surface of the primary filter element 22 can be better cleaned.

[0050] Optionally, both ends of the first vertical pole 217 and the second vertical pole 218 are provided with threaded holes, both front cross bars 215 are provided with insertion holes 3, and both rear cross bars 216 are provided with insertion holes 4. When connecting the first vertical pole 217 and the second vertical pole 218, the threaded holes at both ends of the first vertical pole 217 are overlapped with the insertion holes 3 on the two front cross bars 215, and the threaded holes at both ends of the second vertical pole 218 are overlapped with the insertion holes 4 on the two rear cross bars 216, and finally the bolts are screwed into the threaded holes of the first vertical pole 217 and the second vertical pole 218. When disassembling the first vertical pole 217, it is only necessary to screw the bolts out of the threaded holes.

[0051] In this embodiment, two first upright poles 217 and two second upright poles 218 are provided. In other embodiments, more than two first upright poles 217 and more than two second upright poles 218 may be provided as required, which is not limited here.

[0052] Optionally, the surfaces of the frame 21 , the primary filter element 22 and the secondary filter element are all provided with an anti-corrosion coating to prevent them from being corroded and damaged by being immersed in water for a long time, thereby increasing the service life of the filter device 2 .

[0053] In this embodiment, epoxy resin is applied on the surface of the frame 21, the primary filter element 22 and the secondary filter element, and the epoxy resin is an anti-corrosion coating. In other embodiments, phenolic epoxy coating and other materials can also be applied as the anti-corrosion coating, which is not limited here.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A vortex well water inlet system, characterized in that: include: A water inlet channel (1), wherein the downstream of the water inlet channel (1) is connected to the vortex well (100); The filter device (2) comprises a frame (21) and a primary filter element (22), wherein the frame (21) is detachably mounted in the water inlet channel (1), and the frame (21) is provided with a water inlet (211) and a water outlet (212) on two opposite sides along the water flow direction, respectively, and water can flow into the frame (21) through the water inlet (211) and flow out of the frame (21) through the water outlet (212); the primary filter element (22) is provided with The first-level filter element (22) comprises a U-shaped filter screen (221) and two side filter screens (222), the two side filter screens (222) are respectively connected to two U-shaped sides of the U-shaped filter screen (221), so as to enclose a filter chamber with an opening with the U-shaped filter screen (221), the opening of the filter chamber faces the water inlet (211), and the two side filter screens (222) are both connected to the frame (21); The water pumping device (3) is configured to be arranged in the vortex well (100).

2. The vortex well water inlet system according to claim 1, characterized in that: The filtering device (2) further comprises at least one secondary filtering element, wherein the secondary filtering element is arranged in the frame (21) and is located between the primary filtering element (22) and the water outlet (212), and the filtering accuracy of the secondary filtering element is greater than the filtering accuracy of the primary filtering element (22).

3. The vortex well water inlet system according to claim 1, characterized in that: The frame (21) is provided with at least one clamping rod (213) on both sides opposite to each other along the width direction of the water inlet channel (1), and the side walls of the water inlet channel (1) along its own width direction are provided with at least one groove, and the clamping rods (213) can be clamped in the grooves in a one-to-one correspondence.

4. The vortex well water inlet system according to claim 3, characterized in that: The clamping rod (213) comprises a first rod body (2131) and a second rod body (2132) which are vertically connected, and one end of the first rod body (2131) away from the second rod body (2132) is connected to the frame body (21); the groove comprises a first groove section and a second groove section which are vertically connected, the first rod body (2131) is mounted on the inner wall of the first groove section, and the second rod body (2132) is inserted into the second groove section.

5. The vortex well water inlet system according to any one of claims 1 to 4, characterized in that: The filtering device (2) further comprises an extraction member, the extraction member comprising a handle portion and a connection portion, the handle portion being connected to the frame (21) via the connection portion.

6. The vortex well water inlet system according to any one of claims 1 to 4, characterized in that: The frame (21) comprises: Two side frames (214), the two side frames (214) being arranged at intervals along the width direction of the water inlet channel (1), and the two side filter screens (222) being connected to the two side frames (214) respectively; Two front cross bars (215) and two rear cross bars (216) are arranged at intervals, the two front cross bars (215) and the two rear cross bars (216) are opposite to each other, and both the front cross bars (215) and the rear cross bars (216) extend along the width direction of the water inlet channel (1); both ends of the two front cross bars (215) and both ends of the two rear cross bars (216) are respectively connected to the two side frames (214); the water inlet (211) is between the two front cross bars (215), and the water outlet (212) is between the two rear cross bars (216); The U-shaped filter screen (221), the front cross bar (215) and the rear cross bar (216) are all adjustable in size along the width direction of the water inlet channel (1).

7. The vortex well water inlet system according to claim 6, characterized in that: The U-shaped filter (221) comprises a first U-shaped filter and a second U-shaped filter, the first U-shaped filter and the second U-shaped filter at least partially overlap, one of the side filters (222) is connected to an end of the first U-shaped filter away from the second U-shaped filter, and the other side filter (222) is connected to an end of the second U-shaped filter away from the first U-shaped filter, and the overlapping length of the first U-shaped filter and the second U-shaped filter is adjustable.

8. The vortex well water inlet system according to claim 6, characterized in that: The front cross bar (215) and the rear cross bar (216) both include a first adjustment rod and a second adjustment rod, wherein the first adjustment rod and the second adjustment rod are respectively connected to the two side frames (214), the first adjustment rod is hollow inside, one end of the second adjustment rod extends into the first adjustment rod, and the length of the second adjustment rod inside the first adjustment rod is adjustable.

9. The vortex well water inlet system according to claim 6, characterized in that: The frame (21) comprises at least one first vertical rod (217), and two ends of the first vertical rod (217) are respectively detachably connected to the two front side cross rods (215); And / or, the frame (21) comprises at least one second vertical rod (218), and two ends of the second vertical rod (218) are respectively detachably connected to the two rear side cross rods (216).

10. The vortex well water inlet system according to claim 2, characterized in that: The surfaces of the frame (21), the primary filter element (22) and the secondary filter element are all provided with an anti-corrosion coating.

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