Submersible type self-cleaning filtering water pump system and process thereof

Abstract

The invention discloses a submersible type self-cleaning filtering water pump system and a process thereof, and belongs to the technical field of filters. The device comprises a submersible pump, a hydraulically-driven filter screen device is arranged at the bottom of the submersible pump, a hydraulically-driven cleaning device is arranged on the surface of the hydraulically-driven filter screen device, and the output end of the submersible pump is connected with a well outlet pipeline. A flow meter is connected to the well outlet pipeline, a flow dividing main pipeline is further installed on the well outlet pipeline, and an electric valve is installed between the well outlet pipeline and the flow dividing main pipeline. The whole set of equipment can accurately control the surface cleaning of the filter screen through the PLC control system, so that the purposes of saving water, reducing the maintenance period of the equipment and prolonging the service life of a product are achieved; the system is high in integration level, and compared with traditional well water irrigation, a submersible pump needs to be matched with a ground filtering system, the occupied area is large, in the long-term use process, a large amount of gravel in a well is lost, ground collapse and ground connecting pipeline breakage are likely to be caused, and serious economic losses are caused.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and more particularly to a submersible self-cleaning filtering water pump system and a process thereof. Background Art

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit submerges in the water to extract groundwater to the surface. Submersible pumps can be roughly divided into three categories: clean water submersible pumps, sewage submersible pumps, and seawater submersible pumps. Especially sewage submersible pumps, during use, the submersible pump is placed in sewage. During water extraction operations, foreign matter mixed in the sewage can easily cause blockage in the water inlet pipe of the submersible pump, which needs to be cleaned regularly to ensure the normal operation of the submersible pump.

[0003] Submersible pumps, such as the submersible pump with convenient filter cleaning disclosed in Patent No. CN201521091818.5, have the following problems: 1. Most existing submersible pumps have a peripheral filter screen or filter window structure on the outer layer of the pump body to filter the water entering the pump body. However, the filter structure of this water pump is mostly installed by locking with bolts, which is inconvenient to disassemble and is not conducive to the disassembly and cleaning of the peripheral filter structure outside the submersible pump;

[0004] 2. Most existing submersible pumps have a peripheral filter or filter window structure on the outer layer of the pump body to filter the water entering the pump body, but it cannot achieve a high filtering accuracy. The bottom of this water pump is equipped with a simple support foot, which has poor contact with the ground and cannot provide good support for the submersible pump. During long-term use, a large amount of sand and gravel in the well will be lost, which may easily cause ground collapse and breakage of ground connection pipes, resulting in serious economic losses.

[0005] 3. The submersible pumps in the prior art do not have their own filter cleaning equipment and are unable to precisely clean the filter surface. This results in a significant increase in impurities attached to the filter surface as the use time increases, making the filtering effect increasingly worse. Summary of the Invention

[0006] 1. Technical problem to be solved by the invention

[0007] In response to the defects and shortcomings of the existing technology, the present invention provides a submersible self-cleaning filtering water pump system and its process. The entire set of equipment of the present invention can accurately control the cleaning of the filter surface through the PLC control system, thereby saving water, reducing the equipment maintenance cycle, and increasing the service life of the product; the present invention has a high degree of integration. Compared with traditional well water irrigation, a submersible pump is required to cooperate with a ground filtration system, which occupies a large area. During long-term use, a large amount of sand and gravel in the well will be lost, which can easily cause ground collapse and rupture of ground connecting pipes, resulting in serious economic losses.

[0008] 2. Technical solution

[0009] In order to achieve the above object, the technical solution provided by the present invention is:

[0010] A submersible self-cleaning filtering water pump system of the present invention comprises a submersible pump, a hydraulically driven filter device is provided at the bottom of the submersible pump, a hydraulically driven cleaning device is provided on the surface of the hydraulically driven filter device, and the output end of the submersible pump is connected to a well outlet pipeline.

[0011] Furthermore, a flow meter is connected to the well outlet pipeline, a main diversion pipeline is also installed on the well outlet pipeline, and an electric valve is installed between the well outlet pipeline and the main diversion pipeline.

[0012] Furthermore, the hydraulically driven filter device includes a filter assembly and a water suction main pipe. An O-ring is provided at the connection between the water suction main pipe and the submersible pump. A filter fixing plate is provided on the outer ring of the water suction main pipe. An injection-molded water suction port is provided at the lower end of the water suction main pipe. A cylinder driving wheel is provided on the outer ring of the injection-molded water suction port. A lower support Y-shaped plate is provided at the bottom of the water suction main pipe. A ground rod is provided at the bottom of the lower support Y-shaped plate.

[0013] The upper surface of the filter screen fixing plate is fixedly connected with a nylon bearing through bolts, and a nylon adjustment gasket is provided at the gap between the nylon bearing and the water suction main pipe.

[0014] Furthermore, the water suction main pipe includes a water pump connecting Y-shaped plate, a cylinder positioning ring, a water suction pipe, a lower sealing plate and a lower bearing inner ring fixed shaft;

[0015] A water pump connecting Y-type plate is provided on the upper part of the water suction pipe, and the water pump connecting Y-type plate is connected to the submersible pump through bolts. The outer ring of the water suction pipe is provided with a cylinder positioning ring, and a plurality of water suction holes are provided at intervals at the lower end of the water suction pipe. A lower sealing plate is provided at the bottom of the water suction pipe, and a lower bearing inner ring fixing shaft is provided at the bottom of the lower sealing plate; the outer ring of the lower bearing inner ring fixing shaft is provided with a tapered roller bearing.

[0016] Furthermore, the cylinder driving wheel includes a blade fixing ring, blades, a filter lower fixing ring, a filter lower large plate and a lower bearing outer ring fixing sleeve;

[0017] The blade fixing ring is welded to the blade, and a filter lower plate is provided at the bottom of the blade fixing ring. The blade fixing ring and the filter lower plate rotate relative to each other. A filter lower fixing ring is provided on the outer edge of the filter lower plate, and a lower bearing outer ring fixing sleeve is provided at the bottom of the filter lower plate.

[0018] Furthermore, multiple filter assemblies can be arranged between the upper filter fixing plate and the lower large plate of the filter. The filter assembly includes an injection-molded frame and a high-precision filter. The injection-molded frame and the high-precision filter are injection-molded into an integrated structure. A boss is provided on the upper outer edge of the high-precision filter, and a groove is provided on the lower inner edge of the high-precision filter. The two sets of filter assemblies can be fitted together through the boss and the groove; a plurality of fixing holes are arranged at intervals on the upper and lower edges of the filter assembly.

[0019] Furthermore, the hydraulically driven cleaning device comprises a counterclockwise impeller drive mechanism, a diversion chamber, a connecting pipeline and a clockwise impeller drive mechanism;

[0020] The output end of the diversion main pipeline is connected to the diversion cavity, and the output end of the diversion cavity is connected to the counterclockwise impeller drive mechanism and the clockwise impeller drive mechanism through connecting pipes respectively;

[0021] The counterclockwise impeller drive mechanism is provided with two groups, and the clockwise impeller drive mechanism is provided with one group; the bottoms of the counterclockwise impeller drive mechanism and the clockwise impeller drive mechanism are both connected with a brush system.

[0022] Furthermore, the brush system includes a screw, the upper end of which passes through the water pump connecting Y-shaped plate and is fixed by a nut, and the lower end of which passes through the lower support Y-shaped plate and is fixed by a nut. The screw is equipped with an impeller cavity on the rod body, and a pressure relief port is opened on the surface of the impeller cavity; an impeller is arranged in the impeller cavity, and the bottom of the impeller is fixed to the brush holder by a bolt;

[0023] The brush holder is sleeved on the shaft of the screw rod, and a ball bearing and a bearing sleeve are provided at the connection between the brush holder and the screw rod. The bearing sleeve is sleeved on the screw rod, the inner ring of the ball bearing contacts the bearing sleeve, and the outer ring of the ball bearing contacts the brush holder. The upper and lower ends of the ball bearing are self-locked by self-locking round nuts.

[0024] Furthermore, the surface of the brush holder is provided with bristles, and the bristles are arranged in three rows evenly or in a spiral arrangement.

[0025] A submersible self-cleaning filter water pump system is designed to: place a submersible pump in well water, extract the clean water after filtration inside a hydraulically driven filter device, and directly input the clean water into the pre-buried irrigation pipes through the well outlet pipe to provide drip irrigation or spray water to ground plants;

[0026] The equipment reads the water supply volume through the flow meter and transmits the parameters to the PLC control system; when the water supply starts, the surface of the equipment's hydraulically driven filter device is clean and free of impurities, the flow rate can meet the set requirements, and the system operates normally; after a period of operation, when the surface of the hydraulically driven filter device is blocked by impurities and the water supply volume read by the flow meter cannot meet the irrigation setting requirements, the PLC energizes the electric valve through an electrical signal, and the electric valve opens. The high-pressure water source in the outflow pipeline passes through the diversion main pipeline to provide power to the cleaning brush. Under the cleaning of the brush, impurities attached to the surface of the cylinder fall off, and the flow rate is restored. The PLC de-energizes the electric valve through an electrical signal, cleans the high-pressure water channel and stops water supply, and the cleaning work is completed.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0029] The entire set of equipment of the present invention can accurately control the cleaning of the filter surface through the PLC control system, thereby saving water, reducing the equipment maintenance cycle, and increasing the service life of the product; the present invention has a high degree of integration. Compared with traditional well water irrigation, it requires a submersible pump to cooperate with the ground filtration system, which occupies a large area. During long-term use, a large amount of sand and gravel in the well will be lost, which can easily cause ground collapse and rupture of ground connecting pipes, resulting in serious economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is the overall structural diagram of the present invention;

[0031] Figure 2 It is the front view of the present invention;

[0032] Figure 3 It is a left side view of the present invention;

[0033] Figure 4 It is a right side view of the present invention;

[0034] Figure 5 A top view of the present invention;

[0035] Figure 6 This is a structural diagram of the hydraulically driven filter device of the present invention;

[0036] Figure 7 is a cross-sectional view of the hydraulically driven filter device of the present invention;

[0037] Figure 8 For the present invention Figure 7 AA section view;

[0038] Figure 9 This is a structural diagram of the injection molding water suction port of the present invention;

[0039] Figure 10 This is a front view of the injection molding water suction port of the present invention;

[0040] Figure 11 For the present invention Figure 10 AA section view;

[0041] Figure 12 It is a side view of the injection molding water suction port of the present invention;

[0042] Figure 13 This is a structural diagram of the water absorption main pipe of the present invention;

[0043] Figure 14 It is a cross-sectional view of the water suction main pipe of the present invention;

[0044] Figure 15 A top view of the water suction main pipe of the present invention;

[0045] Figure 16 This is a structural diagram of the cylinder drive wheel of the present invention;

[0046] Figure 17 A half-section view of the cylinder drive wheel of the present invention;

[0047] Figure 18 This is a schematic diagram of the blade rotation principle of the present invention;

[0048] Figure 19 This is a structural diagram of the filter assembly of the present invention;

[0049] Figure 20 This is a front view of the filter assembly of the present invention;

[0050] Figure 21 A top view of the filter assembly of the present invention;

[0051] Figure 22 For the present invention Figure 20 A magnified view of point A;

[0052] Figure 23 This is a diagram showing the matching effect of the boss and the groove of the present invention;

[0053] Figure 24 This is a structural diagram of the impeller-pipeline flow diversion arrangement of the present invention;

[0054] Figure 25 This is a front view of the impeller-pipe splitter arrangement of the present invention;

[0055] Figure 26 A top view of the impeller-pipe flow splitting arrangement of the present invention;

[0056] Figure 27 This is a diagram showing the operation of the hydraulically driven cleaning device of the present invention;

[0057] Figure 28 It is an assembly diagram of the water-driven cleaning device of the present invention;

[0058] Figure 29 A partial assembly diagram of the water-driven cleaning device of the present invention;

[0059] Figure 30 This is an enlarged view of the inner structure of the impeller cavity of the present invention;

[0060] Figure 31 This is a diagram showing the overall structure of the blade of the present invention;

[0061] Figure 32 A top view of a blade according to the present invention;

[0062] Figure 33 is a cross-sectional view of a blade of the present invention;

[0063] Figure 34 This is a structural diagram of the impeller chamber of the present invention;

[0064] Figure 35 This is a diagram showing the internal structure of the impeller chamber of the present invention;

[0065] Figure 36 This is a front view of the impeller chamber of the present invention;

[0066] Figure 37 is a cross-sectional view of the impeller chamber of the present invention;

[0067] Figure 38 A partial cross-sectional view of the impeller chamber of the present invention;

[0068] Figure 39 This is a structural diagram of the brush holder of the present invention;

[0069] Figure 40 This is a structural diagram of the anchor rod of the present invention;

[0070] Figure 41 It is the PLC control logic diagram of the present invention;

[0071] Figure 42 This is an overall structural diagram of embodiment 2 of the present invention;

[0072] Figure 43 This is a front view of embodiment 2 of the present invention;

[0073] Figure 44 This is a side view of embodiment 2 of the present invention;

[0074] Figure 45 This is a structural diagram of a brush holder according to embodiment 2 of the present invention.

[0075] Figure: 1. Submersible pump; 2. Hydraulic filter device; 200. Filter assembly; 2001. Injection molded frame; 2002. High-precision filter; 2003. Boss; 2004. Fixing hole; 2005. Groove; 201. Water suction main pipe; 2011. Water pump connection Y-plate; 2012. Cylinder positioning ring; 2013. Water suction pipe; 2014. Lower sealing plate; 2015. Lower bearing inner ring fixing shaft; 2016. Water suction hole; 202. O-ring; 203. Filter fixing plate; 204. Injection molded water suction port; 205. Nylon bearing; 206. Nylon adjustment gasket; 207. Cylinder drive wheel; 2071. Blade fixing ring; 2072. Blade; 207 3. Filter lower fixing ring; 2074. Filter lower large plate; 2075. Lower bearing outer ring fixing sleeve; 208. Lower support Y-type plate; 209. Tapered roller bearing; 3. Hydraulic drive cleaning device; 301. Counterclockwise impeller drive mechanism; 302. Diverter chamber; 303. Connecting pipeline; 304. Clockwise impeller drive mechanism; 305. Brush system; 3051. Screw; 3052. Pressure relief port; 3053. Impeller chamber; 3054. Impeller; 3055. Self-locking round nut; 3056. Screw; 3057. Brush holder; 3058. Bearing sleeve; 4. Outlet pipeline; 401. Flow meter; 402. Electric valve; 403. Diverter main pipeline; 5. Anchor rod. DETAILED DESCRIPTION

[0076] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0077] Example 1

[0078] from Figure 1-5 It can be seen that a submersible self-cleaning filtering water pump system in this embodiment includes a submersible pump 1, a hydraulically driven filter device 2 is provided at the bottom of the submersible pump 1, a hydraulically driven cleaning device 3 is provided on the surface of the hydraulically driven filter device 2, and the output end of the submersible pump 1 is connected to the well outlet pipeline 4.

[0079] A flow meter 401 is connected to the well outlet pipeline 4 , a main diversion pipeline 403 is also installed on the well outlet pipeline 4 , and an electric valve 402 is installed between the well outlet pipeline 4 and the main diversion pipeline 403 .

[0080] from Figure 6-8 It can be seen that Figure 6 、 7To omit the structural diagram of the filter assembly 200, the hydraulically driven filter device 2 includes a filter assembly 200 and a water suction main pipe 201. An O-ring 202 is provided at the connection between the water suction main pipe 201 and the submersible pump 1. The outer ring of the water suction main pipe 201 is provided with a filter fixing plate 203. The lower end of the water suction main pipe 201 is provided with an injection-molded water suction port 204; the outer ring of the injection-molded water suction port 204 is provided with a cylinder driving wheel 207; the bottom of the water suction main pipe 201 is provided with a lower support Y-shaped plate 208; the bottom of the lower support Y-shaped plate 208 is provided with a ground rod 5;

[0081] After the submersible pump 1 is powered on, it starts to pump water. The bottom of the submersible pump 1 is connected to the water suction main 201. Three injection-molded water suction ports 204 are evenly arranged on the circumference below the water suction main 201. The even distribution of the three injection-molded water suction ports 204 can ensure that the system operates stably during the driving process. The joint surface between the injection-molded water suction port 204 and the water suction main 201 is designed with a step that matches the pipe water suction hole 2016 to achieve positioning and sealing effects. The cylinder drive wheel 207 is formed into a whole by welding. When the water source filtered inside the filter assembly 200 passes through the injection-molded water suction port 204 and enters the water suction main 201, the water flow rotates clockwise under the action of suction.

[0082] from Figure 9-12 It can be seen that the specific structure of the injection molded water suction port 204 is designed with the same opening size as the water suction hole 2016, and a step is designed, so that the injection molded water suction port 204 can be inserted into the water suction hole 2016 to achieve the effect of positioning and sealing;

[0083] The left and right end surfaces of the arc of the injection-molded water inlet 204 are each provided with two mounting holes, which are fixed with bolts. In order to ensure strength, the three matched injection-molded water inlet 204 have upper and lower surfaces that are full circumferential surfaces. While ensuring strength, it can also allow the water source entering the pipeline to pass through the blades, minimizing the kinetic energy attenuation caused by water leakage;

[0084] from Figure 7 It can be seen that an upper silicone sealing plate is provided at the connection between the upper fixing plate 203 of the filter and the water suction pipe 2013, and a lower silicone sealing plate is provided at the connection between the lower large plate 2074 of the filter and the water suction pipe 2013, which is used to prevent the water source containing impurities inside the well water from directly entering the filter assembly 200 without being treated. The upper silicone sealing plate is fixed by the nylon bearing 205 and the fixed plate 203 of the filter with bolts and clamped in the middle part; the lower silicone sealing plate is clamped in the middle by the lower fixing ring 2073 of the filter and the lower large plate 2074 of the filter in the same fixing method.

[0085] from Figure 40It can be seen that three anchor rods 5 are evenly arranged on the outer ring of the equipment. The anchor rods 5 are in the form of screw rods. This stabilizes the structure of the equipment. At the same time, in order to enhance the stability of the equipment, the bottom of the anchor rods 5 is designed to be needle-tip-shaped. When the first anchor rod 5 contacts the bottom of the well, under the action of gravity, the needle-tip-shaped structure can better insert into the sand and gravel at the bottom of the well. The use of a screw rod structure also increases the stability of the anchor rods 5 inserted into the bottom of the well. Subsequently, the second and third anchor rods 5 are also inserted into the bottom of the well. An anchor plate is designed above the anchor rods 5. Its function is to prevent the anchor rods from always being inserted into the bottom of the well. When the anchor rods 5 reach the set depth, the equipment can be guaranteed to operate stably. There is also a certain distance between the anchor plate and the bottom of the equipment to store impurities that fall from the surface of the clean filter. The equipment will not allow impurities to accumulate outside the filter, affecting normal operation.

[0086] A nylon bearing 205 is fixedly connected to the upper surface of the filter screen fixing plate 203 by bolts, and a nylon adjustment gasket 206 is provided at the gap between the nylon bearing 205 and the water suction main pipe 201.

[0087] from Figure 13-15 It can be seen that the water suction main pipe 201 includes a water pump connecting Y-shaped plate 2011, a cylinder positioning ring 2012, a water suction pipe 2013, a lower sealing plate 2014 and a lower bearing inner ring fixed shaft 2015;

[0088] A water pump connecting Y-type plate 2011 is provided on the upper part of the water suction pipe 2013, and the water pump connecting Y-type plate 2011 is connected to the submersible pump 1 by bolts. The outer ring of the water suction pipe 2013 is provided with a cylinder positioning ring 2012, and a plurality of water suction holes 2016 are spaced apart at the lower end of the water suction pipe 2013. A lower sealing plate 2014 is provided at the bottom of the water suction pipe 2013, and a lower bearing inner ring fixing shaft 2015 is provided at the bottom of the lower sealing plate 2014; the outer ring of the lower bearing inner ring fixing shaft 2015 is provided with a tapered roller bearing 209.

[0089] The water pump connection Y-shaped plate 2011 has 6 positioning threads along the circumference, and the submersible pump 1 is also arranged accordingly to better achieve the connection and sealing requirements. The water pump connection Y-shaped plate 2011 has three crossbeams evenly arranged along the circumference to fix the upper part of the cylinder cleaning brush and stabilize the axis centerline;

[0090] The cylinder positioning ring 2012 is used to locate the position of the nylon bearing 205. During assembly, the thickness of the nylon adjustment washer 206 is selected according to the situation.

[0091] from Figure 16-18 It can be seen that the cylinder driving wheel 207 includes a blade fixing ring 2071, blades 2072, a filter lower fixing ring 2073, a filter lower large plate 2074 and a lower bearing outer ring fixing sleeve 2075;

[0092] The blade fixing ring 2071 is welded to the blade 2072, and a filter lower plate 2074 is provided at the bottom of the blade fixing ring 2071 to ensure that the relative position relationship between the blade 2072 and the filter lower plate 2074 is stable and reliable. The blade fixing ring 2071 and the filter lower plate 2074 rotate relative to each other, and a filter lower fixing ring 2073 is provided on the outer edge of the filter lower plate 2074, and a lower bearing outer ring fixing sleeve 2075 is provided at the bottom of the filter lower plate 2074.

[0093] The water inlet of the suction pipe 2013 is directed toward the axis. When water enters the suction pipe 2013 through the blades 2072, the blades are subjected to a thrust F directed toward the axis by the water flow. Through force analysis, a force f perpendicular to the blades 2072 is obtained. Under the action of force f, the cylinder drive wheel 207 rotates clockwise around the axis.

[0094] The upper and lower surfaces of the filter assembly 200 are designed as concave and convex steps, which can better cooperate with each other, and a number of matching fixing holes are designed at the matching circumferential parts to prevent the circumferential sliding between the filters;

[0095] The filter lower fixing ring 2073 is designed according to the corresponding size, and the same positioning holes are processed according to the fixing holes on the circumference of the filter. The filter fixing plate 203 also adopts the same design;

[0096] A large hole needs to be opened at the axis of the large plate 2074 under the filter to match the outer diameter of the step on the fixed sleeve of the bearing outer ring; 6 holes are evenly distributed around the axis of the outer ring of the large hole, and the lower silicone sealing plate is fixed with bolts.

[0097] The outer diameter of the upper step of the lower bearing outer ring fixing sleeve 2075 matches the large hole of the axis of the lower large plate 2074 of the filter. In order to ensure that the axis line of the driving wheel coincides, the inner diameter of the upper step should be larger than the outer diameter of the lower bearing inner ring fixing shaft 2015, and the inner diameter of the lower part needs to match the outer ring of the tapered roller bearing 209.

[0098] from Figure 19-23 It can be seen that multiple filter assemblies 200 are arranged between the filter fixing plate 203 and the filter lower large plate 2074. Each filter assembly 200 includes an injection-molded skeleton 2001 and a high-precision filter 2002. The injection-molded skeleton 2001 and the high-precision filter 2002 are injection-molded into an integral structure. The injection-molded skeleton 2001 tightly wraps the high-precision filter 2002 at the overlapping portion thereof to ensure the strength of the filter assembly 200 and prevent it from deforming under suction.

[0099] A boss 2003 is provided on the outer edge of the upper end of the high-precision filter 2002, and a groove 2005 is provided on the inner edge of the lower end of the high-precision filter 2002. The two sets of filter assemblies 200 can be fitted together through the boss 2003 and the groove 2005; it can achieve a good sealing effect and improve the tightness after fitting; the upper and lower edges of the filter assembly 200 are spaced apart with multiple fixing holes 2004, which can be fixed by bolts after fitting to prevent circumferential sliding between the filters and improve the overall strength of the filter fit.

[0100] Due to the use of the equipment, the axis line and the plumb line need to be relatively consistent. A certain gap needs to be left during assembly to ensure the normal rotation of the filter cartridge. When the equipment is sunk into the well, it cannot be guaranteed to be absolutely vertical. Under the action of gravity, the filter cartridge will generate a small radial force. Because the upper part of the filter cartridge does not need to bear a heavy load, it only needs to play a centering role. In order to better achieve uniform rotation of the cylinder, a sliding structure bearing made of all nylon material is arranged on the upper part of the cylinder; nylon material has a relatively low friction coefficient in water, which can ensure uniform rotation of the cylinder; nylon material has a low density, which can reduce the weight of the filter cartridge; nylon material is easy to manufacture and process, with low material cost and high economy; the contact parts of the upper and lower parts of the nylon bearing are designed to be arc-shaped in order to better solve the problem that the equipment can only achieve relative consistency between the axis line and the plumb line. The arc surface structure can better automatically adjust the center, and will not always be subjected to force at a single point or a single line, thereby ensuring the long-term stable operation of the equipment;

[0101] At the bottom of the filter cartridge, due to the effect of gravity, the selected rotating bearing needs to withstand a certain load (the gravity of the filter cartridge) and a certain radial force. Tapered roller bearings 209 are selected here, which can well meet these requirements. Because the bearings always run underwater, the selected material must be corrosion-resistant material 304 or 306. During the design, the diameter of the lower end of the water suction main pipe 201 is reduced, and the reduced part needs to be below the water suction port. Selecting tapered roller bearings 209 that can meet the load requirements can better meet the economic requirements.

[0102] from Figures 24-27 It can be seen that the hydraulically driven cleaning device 3 comprises a counterclockwise impeller drive mechanism 301, a diversion chamber 302, a connecting pipe 303 and a clockwise impeller drive mechanism 304;

[0103] The output end of the main flow diversion pipe 403 is connected to the diversion chamber 302, and the output end of the diversion chamber 302 is connected to the counterclockwise impeller driving mechanism 301 and the clockwise impeller driving mechanism 304 through the connecting pipe 303 respectively;

[0104] Two groups of counterclockwise impeller drive mechanisms 301 are provided, and one group of clockwise impeller drive mechanisms 304 is provided; the bottoms of the counterclockwise impeller drive mechanisms 301 and the clockwise impeller drive mechanisms 304 are both connected to a brush system 305 .

[0105] from Figures 28-30 As can be seen, the brush system 305 includes a screw rod 3051, the upper end of which passes through the water pump connecting Y-shaped plate 2011 and is fixed by a nut, and the lower end of the screw rod 3051 passes through the lower support Y-shaped plate 208 and is fixed by a nut. The rod body of the screw rod 3051 is equipped with an impeller cavity 3053, and the surface of the impeller cavity 3053 is provided with a pressure relief port 3052; the impeller cavity 3053 is provided with an impeller 3054, and the bottom of the impeller 3054 is fixed to the brush holder 3057 by bolts;

[0106] from Figures 31-33 As can be seen, impeller 3054 is injection molded, with three round nuts evenly inserted into its interior. The circular blades are designed to better absorb the power of the water flow and provide stronger driving thrust. The inner ring of impeller 3054 has a clearance fit with the retaining ring inside impeller cavity 3053, allowing for smooth, frictionless rotation.

[0107] from Figures 34-38 It can be seen that the impeller chamber 3053 also adopts the injection molding process, and the round nut is inserted on the top of the impeller axis; the impeller chamber 3053 is designed with a pressure relief port 3052. After the high-pressure water pushes the impeller 3054 to rotate 180°, it flows out through the square pressure relief port 3052 to ensure that there is always a high pressure difference inside the driving chamber, thereby realizing stable rotation of the driving wheel.

[0108] The brush holder 3057 is sleeved on the shaft of the screw rod 3051. A ball bearing 3056 and a bearing sleeve 3058 are provided at the connection between the brush holder 3057 and the screw rod 3051. The bearing sleeve 3058 is sleeved on the screw rod 3051. The inner ring of the ball bearing 3056 contacts the bearing sleeve 3058, and the outer ring of the ball bearing 3056 contacts the brush holder 3057. The upper and lower ends of the ball bearing 3056 are self-locked by self-locking round nuts 3055.

[0109] The brush holder 3057 needs to be able to rotate freely without resistance during installation. The reserved brush holder lower hole at the bottom of the brush holder 3057 can be used to lock the round nut. A gap is left between the bottom of the brush holder 3057 and the lower supporting Y-shaped plate 208 to ensure that the rotation of the brush holder 3057 is not affected.

[0110] Working principle of hydraulic driven cleaning device 3:

[0111] When the electric valve 402 is opened, the filtered high-pressure water flows through the pipeline to the diversion chamber 302. The diversion chamber 302 evenly distributes the clean high-pressure water to the three impeller drive mechanisms. Under the action of high pressure, the water flow drives the blades 3054 to rotate, driving the brush to rotate and clean the filter surface.

[0112] The filter of the equipment rotates clockwise, and the brush will generate friction when cleaning the surface of the filter. In order to better clean the mesh in all directions, a clockwise impeller drive mechanism and two counterclockwise impeller drive mechanisms are arranged; when the brush and the cylinder rotate clockwise at the same time, the contact between the brush and the cylinder generates strong resistance, which will reduce the rotation efficiency of the cylinder. In order to compensate for the power consumption caused by this part of the resistance, two counterclockwise rotating brushes are arranged at the same time to offset this part of the power consumption; the clockwise brush and the counterclockwise brush clean at the same time, so that the surface of the filter can be cleaned without dead corners.

[0113] When the flow rate reaches the set parameter, the electric valve 402 is closed and the cleaning process ends.

[0114] from Figure 39 As can be seen from Figure 45, the surface of the brush holder 3057 is provided with bristles, which are arranged evenly in three rows or in a spiral arrangement. If a three-row bristle structure is adopted, the bristles can automatically adjust to a state of no contact with the barrel when not clean, thereby increasing the service life of the brush.

[0115] Example 2

[0116] from Figure 41 It can be seen that the process of a submersible self-cleaning filtering water pump system is to place the submersible pump 1 in the well water, extract the clear water source after the water is filtered inside the hydraulically driven filter device 2, and directly input the clean water source into the pre-buried irrigation pipeline through the well outlet pipe 4 to provide drip irrigation or spray water to the ground plants;

[0117] The equipment reads the water supply of the flow meter through the flow meter 401 and transmits the parameters to the PLC control system; when the water supply starts, the surface of the hydraulically driven filter device 2 of the equipment is clean and free of impurities, the flow rate can meet the set requirements, and the system operates normally; after a period of operation, when the surface of the hydraulically driven filter device 2 is blocked by impurities and the water supply read by the flow meter 401 cannot meet the irrigation setting requirements, the PLC energizes the electric valve 402 through an electrical signal, and the electric valve 402 opens. The high-pressure water source in the outflow pipe 4 provides power to the cleaning brush through the diversion main pipe 403. Under the cleaning of the brush, impurities attached to the surface of the cylinder fall off, and the flow rate is restored. The PLC de-energizes the electric valve 402 through an electrical signal, cleans the high-pressure water circuit and stops supplying water, and the cleaning work is completed.

[0118] The entire set of equipment of the present invention can accurately control the cleaning of the filter surface through the PLC control system, thereby saving water, reducing the equipment maintenance cycle, and increasing the service life of the product; the present invention has a high degree of integration. Compared with traditional well water irrigation, it requires a submersible pump 1 to cooperate with the ground filtration system, which occupies a large area. During long-term use, a large amount of sand and gravel in the well will be lost, which can easily cause ground collapse and rupture of ground connecting pipes, resulting in serious economic losses.

[0119] Example 3

[0120] from Figures 42-45 It can be seen that the submersible self-cleaning filter water pump system of this embodiment is different from that of Embodiments 1 and 2 in that a brush holder 3057 of a different structure is used, and the bristles are arranged in a spiral shape; and no PLC control is required;

[0121] The following points are different from PLC control:

[0122] 1. The high-pressure water provided for cleaning the filter surface does not need to be taken from the back of the flow meter on the well. High-pressure water supply can be achieved by only leading a branch pipe from the water pump outlet. The structural principle is simple and the equipment can be made into one piece, which is convenient for on-site installation.

[0123] 2. Under this system, the impeller is always running, and the wear of the brush is higher than that under PLC control. The structure of the brush needs to be adjusted. The spiral state here can better reduce the resistance, reduce wear and increase the service life of the brush.

[0124] 3. The system will always have a portion of filtered water source participating in the cleaning function. The actual water output will be slightly lower than the actual flow rate of the water pump. The selection of the water pump needs to appropriately increase the flow rate.

[0125] 4. There is no PLC in the system and the structure is entirely mechanical, so maintenance problems caused by electrical failures can be avoided.

[0126] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A submersible self-cleaning filtering water pump system, comprising a submersible pump (1), characterized in that: A hydraulically driven filter device (2) is provided at the bottom of the submersible pump (1), a hydraulically driven cleaning device (3) is provided on the surface of the hydraulically driven filter device (2), and an output end of the submersible pump (1) is connected to a well outlet pipeline (4).

2. A submersible self-cleaning filtering water pump system according to claim 1, characterized in that: The well outlet pipeline (4) is connected to a flow meter (401), a main diversion pipeline (403) is also installed on the well outlet pipeline (4), and an electric valve (402) is installed between the well outlet pipeline (4) and the main diversion pipeline (403).

3. The submersible self-cleaning filtering water pump system according to claim 1, characterized in that: The hydraulically driven filter screen device (2) comprises a filter screen assembly (200), a water suction main pipe (201), an O-ring (202) is provided at the connection between the water suction main pipe (201) and the submersible pump (1), an outer ring of the water suction main pipe (201) is provided with a filter screen fixing plate (203), and an injection molded water suction port (204) is provided at the lower end of the water suction main pipe (201); a cylinder driving wheel (207) is provided at the outer ring of the injection molded water suction port (204); a lower supporting Y-shaped plate (208) is provided at the bottom of the water suction main pipe (201); and a ground rod (5) is provided at the bottom of the lower supporting Y-shaped plate (208); The upper surface of the filter screen fixing plate (203) is fixedly connected to a nylon bearing (205) via bolts, and a nylon adjustment gasket (206) is provided at the gap between the nylon bearing (205) and the water suction main pipe (201).

4. A submersible self-cleaning filtering water pump system according to claim 3, characterized in that: The water suction main pipe (201) comprises a water pump connecting Y-shaped plate (2011), a cylinder positioning ring (2012), a water suction pipe (2013), a lower sealing plate (2014) and a lower bearing inner ring fixing shaft (2015); A water pump connecting Y-shaped plate (2011) is provided on the upper part of the water suction pipe (2013), and the water pump connecting Y-shaped plate (2011) is connected to the submersible pump (1) via bolts. A cylinder positioning ring (2012) is provided on the outer ring of the water suction pipe (2013), and a plurality of water suction holes (2016) are provided at intervals at the lower end of the water suction pipe (2013). A lower sealing plate (2014) is provided at the bottom of the water suction pipe (2013), and a lower bearing inner ring fixing shaft (2015) is provided at the bottom of the lower sealing plate (2014); and a tapered roller bearing (209) is provided on the outer ring of the lower bearing inner ring fixing shaft (2015).

5. The submersible self-cleaning filtering water pump system according to claim 3, characterized in that: The cylinder driving wheel (207) comprises a blade fixing ring (2071), blades (2072), a filter lower fixing ring (2073), a filter lower large plate (2074), and a lower bearing outer ring fixing sleeve (2075); The blade fixing ring (2071) is welded to the blade (2072); a filter lower plate (2074) is provided at the bottom of the blade fixing ring (2071); the blade fixing ring (2071) and the filter lower plate (2074) rotate relative to each other; a filter lower fixing ring (2073) is provided on the outer edge of the filter lower plate (2074); and a lower bearing outer ring fixing sleeve (2075) is provided at the bottom of the filter lower plate (2074).

6. The submersible self-cleaning filtering water pump system according to claim 5, characterized in that: A plurality of filter screen assemblies (200) can be arranged between the filter screen upper fixing plate (203) and the filter screen lower large plate (2074), and the filter screen assembly (200) includes an injection molded frame (2001) and a high-precision filter screen (2002). The injection molded frame (2001) and the high-precision filter screen (2002) are injection molded into an integral structure. A boss (2003) is provided on the outer edge of the upper end of the high-precision filter screen (2002), and a groove (2005) is provided on the inner edge of the lower end of the high-precision filter screen (2002). Two sets of filter screen assemblies (200) can be fitted together through the boss (2003) and the groove (2005); a plurality of fixing holes (2004) are arranged at intervals on the upper and lower edges of the filter screen assembly (200).

7. The submersible self-cleaning filtering water pump system according to claim 2, characterized in that: The hydraulically driven cleaning device (3) comprises a counterclockwise impeller drive mechanism (301), a diversion chamber (302), a connecting pipeline (303) and a clockwise impeller drive mechanism (304); The output end of the main flow diversion pipe (403) is connected to the diversion chamber (302), and the output end of the diversion chamber (302) is connected to the counterclockwise impeller driving mechanism (301) and the clockwise impeller driving mechanism (304) via the connecting pipe (303). The counterclockwise impeller drive mechanism (301) is provided with two groups, and the clockwise impeller drive mechanism (304) is provided with one group; the bottoms of the counterclockwise impeller drive mechanism (301) and the clockwise impeller drive mechanism (304) are both connected to a brush system (305).

8. The submersible self-cleaning filtering water pump system according to claim 7, characterized in that: The brush system (305) includes a screw rod (3051), the upper end of the screw rod (3051) passes through the water pump connecting Y-shaped plate (2011) and is fixed by a nut, the lower end of the screw rod (3051) passes through the lower support Y-shaped plate (208) and is fixed by a nut, the rod body of the screw rod (3051) is equipped with an impeller cavity (3053), and the surface of the impeller cavity (3053) is provided with a pressure relief port (3052); an impeller (3054) is provided in the impeller cavity (3053), and the bottom of the impeller (3054) is fixed to the brush holder (3057) by bolts; The brush holder (3057) is sleeved on the shaft of the screw rod (3051). A ball bearing (3056) and a bearing sleeve (3058) are provided at the connection between the brush holder (3057) and the screw rod (3051). The bearing sleeve (3058) is sleeved on the screw rod (3051). The inner ring of the ball bearing (3056) contacts the bearing sleeve (3058), and the outer ring of the ball bearing (3056) contacts the brush holder (3057). The upper and lower ends of the ball bearing (3056) are self-locked by self-locking round nuts (3055).

9. The submersible self-cleaning filtering water pump system according to claim 8, characterized in that: The surface of the brush holder (3057) is provided with bristles, which are arranged evenly in three rows or in a spiral arrangement.

10. The process of a submersible self-cleaning filtering water pump system according to claim 2, characterized in that: The submersible pump (1) is placed in the well water, and the clean water source after the internal filtration of the hydraulically driven filter device (2) is extracted, and the clean water source is directly input into the pre-buried irrigation pipeline through the well outlet pipeline (4) to provide drip irrigation or spray water to the ground plants; The device reads the water supply volume of the flow meter through the flow meter (401) and transmits the parameters to the PLC control system; when the water supply starts, the surface of the hydraulically driven filter device (2) of the device is clean and free of impurities, the flow rate can meet the set requirements, and the system operates normally; after a period of operation, when the surface of the hydraulically driven filter device (2) is blocked by impurities and the water supply volume read by the flow meter (401) cannot meet the irrigation set requirements, the PLC energizes the electric valve (402) through an electrical signal, and the electric valve (402) opens. The high-pressure water source in the well pipe (4) provides power to the cleaning brush through the diversion main pipe (403). Under the cleaning of the brush, impurities attached to the surface of the cylinder fall off, and the flow rate is restored. The PLC de-energizes the electric valve (402) through an electrical signal, and the high-pressure water circuit is cleaned and the water supply is stopped, and the cleaning work is completed.

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