Double-lift and double-flow integrated pump and floating type autorotation backwashing water filter

Abstract

The utility model relates to a double-lift and double-flow integrated pump and a floating type self-rotating backwashing water filter. The integrated pump comprises a water pump main body, the water pump motor is arranged in the water pump main body; the first impeller is connected with one end of the water pump motor and used for enabling one end of the water pump body to discharge water in a large-flow and low-lift mode; the second impeller is connected with the other end of the water pump motor and used for enabling the other end of the water pump body to discharge water in a small-flow and high-lift mode. Compared with the prior art, in the set motor power range of the water pump, the impellers with different flows and different lifts and the integrally matched impeller shells are respectively arranged at the two ends of the motor main shaft, so that small-flow and high-lift water outlet at one end of the water pump is simultaneously realized by utilizing a single motor; in addition, different water outlet amounts and lifts of the two water outlets of the water pump can be kept stable, and the requirements of a specific application scene for the water pump with the two flows and lifts at the same time are met.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to an integrated pump with double lift and double flow and a floating self-rotating backwashing water filter. Background Technique

[0002] A water pump is a general-purpose machine with a wide variety of types and is widely used in fields such as farmland irrigation, petrochemical industry, shipbuilding industry, and rocket engines. Its main working principle is to make water undergo centrifugal motion by the rotation of the impeller. The water in the impeller flow channel is thrown to the surroundings, a vacuum is formed at the impeller inlet, and the water from the outside is sucked in along the water inlet under the atmospheric pressure to supplement this space. Subsequently, the sucked water is thrown out by the impeller and enters the water outlet. Therefore, under the action of the centrifugal force generated by the high-speed rotation of the impeller, the water pump can continuously suck and press water to complete the transportation of water.

[0003] However, the existing water pumps have a single combination of flow rate and lift, and cannot meet the needs of more combinations of flow rate and lift simultaneously under the same power condition.

[0004] Chinese Patent CN114658667A discloses a dynamic rotating single-machine double-water pump type water pump system and its control method. In the dynamic rotating single-machine double-water pump type water pump system, motor shafts are respectively installed at both ends of the motor. The two motor shafts are respectively connected to the water pump shafts, and the water pump shafts are connected to the impellers. The impellers are installed inside the water pumps. Connectors are respectively installed on the two motor shafts, fork protrusion hooks are installed at the four corners of the connectors, and a ring fork is installed at the middle position inside the connectors. This patent expands the functionality of the water pump, adding more combinations to the relatively single combination of the lift and flow rate of the water pump, enabling users to obtain more different requirements for lift and flow rate by using one motor. However, this patent can only operate one of the water pumps through the fork connection and cannot meet the need for simultaneous water supply with two flow rates and lifts. Content of the Utility Model

[0005] The purpose of the utility model is to provide an integrated pump with double lift and double flow and a floating self-rotating backwashing water filter. The integrated pump has double water outlets, double lift, and double flow. Within the range of the motor power set for the water pump, impellers with different flow rates and the supporting large and small impeller housings are respectively installed at both ends of the main motor shaft, so as to achieve the purpose of using a single motor to make one end of the water pump discharge water with a large flow rate and a low lift, and the other end discharge water with a small flow rate and a high lift, and keep the different water discharge amounts and lifts of the two water outlets of the water pump stable.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] An integrated pump with double lift and double flow, comprising:

[0008] Water pump main body;

[0009] Water pump motor: It is arranged inside the water pump main body;

[0010] First impeller: It is connected to one end of the water pump motor, and the first impeller is used to make the water pump main body discharge water with large flow and low head at one end;

[0011] Second impeller: It is connected to the other end of the water pump motor, and the second impeller is used to make the water pump main body discharge water with small flow and high head at the other end.

[0012] In an embodiment of the present utility model, both ends of the water pump motor are respectively connected to the first impeller and the second impeller through the water pump motor main shaft.

[0013] In an embodiment of the present utility model, a first main shaft fixing hole is provided at the central position of the first impeller, and one end of the water pump motor main shaft passes through the main shaft fixing hole and is fixedly connected to the first impeller;

[0014] A second main shaft fixing hole is provided at the central position of the second impeller, and the other end of the water pump motor main shaft passes through the second main shaft fixing hole and is fixedly connected to the second impeller.

[0015] As a preferred technical solution, the opening sizes of the first main shaft fixing hole and the second main shaft fixing hole respectively match the sizes of both ends of the water pump motor main shaft.

[0016] In an embodiment of the present utility model, the integrated pump further includes a first impeller housing and a second impeller housing. One end of the water pump main body is connected to the first impeller housing, the other end of the water pump main body is connected to the second impeller housing, the first impeller is located inside the first impeller housing, and the second impeller is located inside the second impeller housing.

[0017] In an embodiment of the present utility model, a first impeller water inlet housing and a first impeller water outlet are provided on the first impeller housing. A first impeller water inlet diversion hole is provided at the central position of the first impeller water inlet housing, and the first impeller water outlet is provided on the top surface or bottom surface of the first impeller housing and forms a 90° angle with the central vertical line of the first impeller water inlet diversion hole;

[0018] A second impeller water inlet housing and a second impeller water outlet are provided on the second impeller housing. A second impeller water inlet diversion hole is provided at the central position of the second impeller water inlet housing, and the second impeller water outlet is provided on the top surface or bottom surface of the second impeller housing and forms a 90° angle with the central vertical line of the second impeller water inlet diversion hole.

[0019] In an embodiment of the present utility model, the diameter of the first impeller water outlet is larger than the diameter of the second impeller water outlet, and the diameter of the first impeller water inlet diversion hole is larger than the diameter of the second impeller water inlet diversion hole.

[0020] In an embodiment of the present utility model, the first impeller includes a plurality of first impeller blades and a plurality of first impeller grooves. The plurality of first impeller blades are radially arranged along the center of the first impeller, and a first impeller groove is provided between two adjacent first impeller blades;

[0021] The second impeller includes a plurality of second impeller blades and a plurality of first impeller grooves. The plurality of second impeller blades are radially arranged along the center of the second impeller, and a second impeller groove is provided between two adjacent second impeller blades.

[0022] In an embodiment of the present utility model, the first impeller blade is an arc-shaped sheet-like protrusion, the first impeller groove is an arc-shaped concave area, the second impeller blade is an arc-shaped sheet-like protrusion, and the second impeller groove is an arc-shaped concave area.

[0023] In an embodiment of the present utility model, the diameter of the first impeller is smaller than that of the second impeller,

[0024] the number of the first impeller blades is less than that of the second impeller blades,

[0025] the number of the first impeller grooves is less than that of the second impeller grooves, and the average width of the first impeller grooves is greater than that of the second impeller grooves.

[0026] In addition, the present utility model further provides a floating self-rotating backwashing water filter. The floating self-rotating backwashing water filter includes a bracket unit, a water supply unit, and a floating unit.

[0027] The bracket unit includes a rotating cage assembly and a rotating cage fixing bracket. Both ends of the rotating cage fixing bracket are fixed above the floating unit. The rotating cage assembly is arranged on the rotating cage fixing bracket, and the rotating cage assembly is movably connected to the rotating cage fixing bracket;

[0028] The floating unit includes two symmetrically arranged floating bodies. The left and right sides of the bottom end of the rotating cage fixing bracket are respectively fixed above the left and right floating bodies;

[0029] The rotating cage assembly includes a rotating cage filter, a rotating cage filter bracket, a water filter side plate, and a central pipe shaft. The two water filter side plates are connected by a plurality of rotating cage filter brackets. The rotating cage filter is fixed on the rotating cage filter bracket. The rotating cage filter is used for filtering the incoming water.

[0030] The left and right ends of the central pipe shaft are fixed above the rotating cage fixing bracket. The central pipe shaft horizontally penetrates through the left and right water filter side plates. The water filter side plate is rotatably connected to the central pipe shaft.

[0031] The side plate of the water filter is movably connected to the floating body, and a plurality of water receiving hoppers are arranged on the side plate of the water filter.

[0032] A water supply unit is arranged inside the rotary cage filter, and the water supply unit is used to extract the filtered influent water inside the rotary cage filter.

[0033] The water supply unit includes the above-mentioned integrated pump, the integrated pump outlet main pipe, the integrated pump outlet branch pipe, the integrated pump outlet main tube and the backwash water pipe. Both ends of the integrated pump are communicated with the integrated pump outlet main pipe and the integrated pump outlet branch pipe respectively. One end of the integrated pump outlet main tube is connected to the integrated pump outlet main pipe, the other end of the integrated pump outlet main tube passes through the central pipe shaft and is externally connected to a water delivery pipe, one end of the backwash water pipe is connected to the integrated pump outlet branch pipe, and the other end of the backwash water pipe is used to wash the rotary cage filter and supply water to the water receiving hoppers. The gravity of a plurality of the water receiving hoppers drives the rotary cage assembly to rotate.

[0034] As a preferred technical solution, the side plate of the water filter is rotationally connected to the central pipe shaft through a rotary cage fixed bearing.

[0035] In an embodiment of the present invention, the integrated pump includes a pump main body, a first impeller water outlet and a second impeller water outlet. The first impeller water outlet is arranged at one end of the pump main body, the second impeller water outlet is arranged at the other end of the pump main body, the first impeller water outlet is for discharging water with a large flow rate and a small lift, and the second impeller water outlet is for discharging water with a small flow rate and a large lift.

[0036] The integrated pump outlet main pipe is connected to the integrated pump through the first impeller water outlet, and the pump outlet branch pipe is connected to the integrated pump through the second impeller water outlet.

[0037] In an embodiment of the present invention, the integrated pump is externally connected to a power supply through a pump power cord, and the pump power cord is arranged inside the pipe on the other side of the central pipe shaft.

[0038] As a preferred technical solution, a plurality of spray heads are arranged on the backwash water pipe.

[0039] The principle of the integrated pump with double lift and double flow rate in the present invention is as follows:

[0040] In addition to the general motor power configuration in the pump design, the pump impeller needs to be designed based on the comprehensive parameter of the specific speed ns in the similarity theory. The specific speed ns is based on the assumption of a standard pump model with an effective power of 735.5 W (1 HP, that is, 1 horsepower), a lift H of 1 m, and a flow rate Q of 0.075 m^3 / s. Its calculation formula is:

[0041] ns = 3.65n(Q)^(1 / 2) / (H)^(3 / 4)

[0042] Where: ns is the specific speed — r / min; Q is the flow rate of the water pump — m 3 / s; H is the head of the water pump — m; n is the rotational speed of the water pump — r / min.

[0043] It can be seen from the formula that the specific speed ns is directly proportional to the flow rate and inversely proportional to the head. The specific speed comprehensively reflects the characteristics of the water pump and synthesizes the relationship among the flow rate, total pressure, and rotational speed of the water pump. On the premise of a certain rotational speed n of the water pump motor, based on different specific speeds ns, the vane pump can be classified as follows: ① Low specific speed pump: In terms of structure, the outer diameter of the impeller can be increased to enhance the centrifugal force and kinetic energy of the water body during the rotation of the impeller. At the same time, the inner diameter of the water inlet guide port and the width of the vane groove are reduced to achieve the goal of high head and small flow rate; ② High specific speed pump: In terms of structure, the outer diameter of the impeller can be reduced to lower the centrifugal force and kinetic energy of the water body during the rotation of the impeller. The inner diameter of the water inlet guide port of the impeller and the width of the vane groove are increased to achieve the goal of low head and large flow rate.

[0044] In the present utility model, it is driven by one motor. Within the rated power range of the water pump motor, if impellers with different diameters, vane groove widths, and water inlet guide port sizes are designed according to different specific speeds, stable water discharge can be achieved simultaneously for the integrated pump with large flow rate and low head and the integrated pump with small flow rate and high head. Therefore, the equal rotational speed n in the specific speed formula can be used to transform the formula into a limiting balance formula for the design of the two impeller structures of the dual-head dual-flow integrated pump, which is specifically as follows:

[0045] ns1 = 3.65n(Q1)^(1 / 2) / (H1)^(3 / 4)

[0046] ns2 = 3.65n(Q2)^(1 / 2) / (H2)^(3 / 4)

[0047] (ns1)(H1)^(3 / 4) / (Q1)^(1 / 2) = (ns2)(H2)^(3 / 4) / (Q2)^(1 / 2)

[0048] Where: ns1 is the high specific speed pump, with a large flow rate Q1 and a low head H1; ns2 is the low specific speed pump, with a small flow rate Q2 and a high head H2.

[0049] Accordingly, the sizes and structural forms of the impellers of two water pumps with different specific speeds can be designed for the flow rate Q and the head H according to the requirements of different application scenarios, but the ratio of the flow rate Q and the head H on both sides must satisfy the above balance formula.

[0050] Meanwhile, the sum of the outlet load powers of two pumps with different specific speeds must theoretically be less than the rated power of the motor. Accordingly, the material specifications of the motor spindle and the fixed bearings are selected accordingly to avoid risks such as uneven stress and vibration. The matching of the motor rated power with the outlet powers of the two pumps on both sides can adopt different reference calculation formulas according to the requirements of different application scenarios, such as: flow method, caliber method, comprehensive physical method and other calculation methods. The following is one of the reference calculation formulas for the matching of the motor power with the outlet powers of the two pumps on both sides as follows:

[0051] N = (Q)(H) / 367(0.6 - 0.85)

[0052] Where N is the outlet power of the pump (kw), Q is the flow rate (m 3 / h), H is the head (m), 367 is a constant, and 0.6 to 0.85 is the flow coefficient of the pump (set to 0.7 for this example).

[0053] For example: The configuration parameters of the double-flow and double-head integrated pump in the following table

[0054]

[0055] The specific speed ns is calculated as follows:

[0056] ns1 = (3.65)(2500)(20 / 3600)^(1 / 2) / (8)^(3 / 4) = 142.91

[0057] ns2 = (3.65)(2500)(4 / 3600)^(1 / 2) / (25)^(3 / 4) = 27.18

[0058] The double-head and double-flow balance is calculated as follows:

[0059] (142.91)(8)^(3 / 4) / (20 / 3600)^(1 / 2) = 9124

[0060] (27.18)(25)^(3 / 4) / (4 / 3600)^(1 / 2) = 9125

[0061] Through calculation and verification, under the condition that the motor speed is 2500 r / min and the rated power is above 1.012 kw (the motor rated power also needs to consider factors such as overload power surplus, power loss due to mechanical friction, and current heat loss), according to the basic parameters such as the pump flow rate in the above table and combined with the actual application scenario requirements, the corresponding pump impeller structure is designed to achieve the goal of stable simultaneous water outlet for water bodies with different high and low heads and flow rates.

[0062] Compared with the prior art, the present utility model has the following beneficial effects:

[0063] 1. When a water pump is actually applied, in the case where the water intake space of the water pump is very limited, when the water pump starts and operates, it is necessary to simultaneously provide a large-flow and low-lift water body and a small-flow and high-lift water body. However, due to the limitation of the water intake space of the water pump, the connection structure of the combined water pump body needs to be simple, the operation is stable and reliable, and it is an integrated combination method, and the actual application implementation is also very simple and easy. The utility model adopts a single motor, and water pumps with different water supply efficiencies are installed at both ends of the motor main shaft. When the motor rotates, the impellers on both sides are driven to rotate at the same time. Water flows into the water pump body from both ends respectively and flows out from both sides of the water pump body. In addition, the connection between the water pump and the motor in the utility model is integrated and placed in water at the same time, so that the heat generated when the motor rotates is taken away by the water body at any time, and the motor will not overheat and be damaged.

[0064] 2. Under the condition of space limitation, the utility model innovates an integrated combined water pump with a compact structure, simple implementation, convenient operation, stable operation, and capable of simultaneously providing a large-flow and low-lift and a small-flow and high-lift dual-channel water body. Within the range of the motor power set for the water pump, impellers with different flow rates and lifts are respectively installed at both ends of the motor main shaft, so as to achieve the purpose of using a single motor to make one end of the water pump discharge water with a large flow rate and a low lift, and the other end discharge water with a small flow rate and a high lift, and keep the different water discharge amounts and lifts of the two water outlets of the water pump stable.

[0065] 3. Impellers with different specifications and sizes are respectively installed at both ends of the motor rotating shaft of the utility model. When the motor rotates, the impellers on both sides can be driven to rotate at the same time. Water flows into the water pump body from the water inlet pipes on both sides of the pump body and flows out from the water outlet pipes on both sides of the pump body.

[0066] 4. Within the range of the motor power set for the water pump, the utility model respectively installs impellers with different flow rates and different lifts and an integrated supporting impeller housing at both ends of the motor main shaft, so as to achieve the purpose of using a single motor to simultaneously make one end of the water pump discharge water with a small flow rate and a high lift, and the other end discharge water with a large flow rate and a low lift, and keep the different water discharge amounts and lifts of the two water outlets of the water pump stable, meeting the requirements for two types of water pumps with different flow rates and lifts in a specific application scenario.

[0067] 5. The utility model pumps the water in the cage through the integrated pump in the rotating cage assembly and then divides it into two-way water outlets after passing through the main water outlet pipe of the water pump. One way is the water pump outlet branch pipe with a smaller water volume, and the other way is the main water pump outlet pipe with a larger water discharge amount. Among them, the water path of the water pump outlet branch pipe sprays from the inside to the outside through the backwash water pipe onto the rotating cage filter screen and the water receiving hopper fixed on the side plate, realizing the backwash function of the rotating cage filter screen and the gravity of the water receiving hopper to make the rotating cage body rotate automatically and continuously. Brief Description of the Drawings

[0068] Figure 1 It is a schematic structural diagram of the dual-lift and dual-flow integrated pump in the utility model;

[0069] Figure 2 This is a cross-sectional view of the first impeller in the present utility model;

[0070] Figure 3 This is a schematic structural view of the first impeller in the present utility model;

[0071] Figure 4 This is a cross-sectional view of the second impeller in the present utility model;

[0072] Figure 5 This is a schematic structural view of the second impeller in the present utility model;

[0073] Figure 6 This is a schematic structural view of the floating self-rotating backwashing water filter in the present utility model;

[0074] Figure 7 This is a cross-sectional view of the floating self-rotating backwashing water filter in the present utility model.

[0075] Explanation of the drawing reference numerals: 1. Water pump main body, 2. Water pump motor, 3. Water pump motor main shaft, 4. First impeller water outlet, 5. First impeller housing, 6. First impeller inlet housing, 7. First impeller, 8. Second impeller, 9. Second impeller inlet housing, 10. Second impeller housing, 11. Second impeller water outlet, 12. First main shaft fixing hole, 13. First impeller groove, 14. First impeller blade, 15. First impeller inlet guide hole, 16. Second impeller blade, 17. Second impeller groove, 18. Second main shaft fixing hole, 19. Second impeller inlet guide hole, 21. Integrated pump, 22. Integrated pump water outlet main pipe, 23. Integrated pump water outlet branch pipe, 24. Integrated pump water outlet main tube, 25. Backwashing water pipe, 26. Water receiving hopper, 27. Rotating cage filter, 28. Rotating cage filter support, 29. Water filter side plate, 30. Rotating cage fixing support, 31. Central pipe shaft, 32. Floating body, 33. Rotating cage fixing bearing, 34. Water pump power cord. Detailed implementation manners

[0076] The present utility model will be described in detail below with reference to the drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and the detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0077] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0078] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0079] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0080] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0081] Embodiment 1

[0082] See Figures 1 to 5 , this embodiment provides an integrated pump with double head and double flow rate, including:

[0083] The water pump main body 1;

[0084] The water pump motor 2: which is arranged inside the water pump main body 1;

[0085] The first impeller 7: which is connected to one end of the water pump motor 2, and the first impeller 7 is used to make the water at one end of the water pump main body 1 flow out with large flow rate and low head;

[0086] The second impeller 8: which is connected to the other end of the water pump motor 2, and the second impeller 8 is used to make the water at the other end of the water pump main body 1 flow out with small flow rate and high head.

[0087] In this embodiment, both ends of the water pump motor 2 are respectively connected to the first impeller 7 and the second impeller 8 through the water pump motor main shaft 3.

[0088] In this embodiment, a first main shaft fixing hole 12 is provided at the center position of the first impeller 7, and one end of the water pump motor main shaft 3 passes through the main shaft fixing hole 12 and is fixedly connected to the first impeller 7;

[0089] A second main shaft fixing hole 18 is provided at the central position of the second impeller 8, and the other end of the main shaft 3 of the water pump motor passes through the second main shaft fixing hole 18 and is fixedly connected to the second impeller 8.

[0090] In this embodiment, the opening sizes of the first main shaft fixing hole 12 and the second main shaft fixing hole 18 are respectively matched with the sizes of the two ends of the main shaft 3 of the water pump motor.

[0091] In this embodiment, the integrated pump further includes a first impeller housing 5 and a second impeller housing 10. One end of the water pump main body 1 is connected to the first impeller housing 5, and the other end of the water pump main body 1 is connected to the second impeller housing 10. The first impeller 7 is located inside the first impeller housing 5, and the second impeller 8 is located inside the second impeller housing 10.

[0092] In this embodiment, a first impeller water inlet housing 6 and a first impeller water outlet 4 are provided on the first impeller housing 5. A first impeller water inlet guide hole 15 is provided at the central position of the first impeller water inlet housing 6. The first impeller water outlet 4 is provided on the top or bottom surface of the first impeller housing 5 and forms a 90° angle with the central vertical line of the first impeller water inlet guide hole 15.

[0093] A second impeller water inlet housing 9 and a second impeller water outlet 11 are provided on the second impeller housing 10. A second impeller water inlet guide hole 19 is provided at the central position of the second impeller water inlet housing 9. The second impeller water outlet 11 is provided on the top or bottom surface of the second impeller housing 10 and forms a 90° angle with the central vertical line of the second impeller water inlet guide hole 19.

[0094] In this embodiment, the diameter of the first impeller water outlet 4 is larger than the diameter of the second impeller water outlet 11, and the diameter of the first impeller water inlet guide hole 15 is larger than the diameter of the second impeller water inlet guide hole 19.

[0095] In this embodiment, the first impeller 7 includes a plurality of first impeller blades 14 and a plurality of first impeller grooves 13. The plurality of first impeller blades 14 are arranged radially along the center of the first impeller 7, and a first impeller groove 13 is provided between two adjacent first impeller blades 14.

[0096] The second impeller 8 includes a plurality of second impeller blades 16 and a plurality of first impeller grooves 17. The plurality of second impeller blades 16 are arranged radially along the center of the second impeller 8, and a second impeller groove 17 is provided between two adjacent second impeller blades 16.

[0097] In this embodiment, the first impeller blade 14 is an arc-shaped sheet-like protrusion, the first impeller groove 13 is an arc-shaped concave area, the second impeller blade 16 is an arc-shaped sheet-like protrusion, and the second impeller groove 17 is an arc-shaped concave area.

[0098] In this embodiment, the diameter of the first impeller 7 is smaller than that of the second impeller 8,

[0099] the number of the first impeller blades 14 is less than that of the second impeller blades 16,

[0100] the number of the first impeller grooves 13 is less than that of the second impeller grooves 17, and the average width of the first impeller grooves is greater than that of the second impeller grooves.

[0101] Embodiment 1

[0102] See Figures 6 to 7 , this embodiment provides a floating self-rotating backwashing water filter, and the floating self-rotating backwashing water filter includes a bracket unit, a water supply unit and a floating unit.

[0103] The bracket unit includes a rotating cage assembly and a rotating cage fixing bracket 30. Both ends of the rotating cage fixing bracket 30 are fixed above the floating unit. The rotating cage assembly is arranged on the rotating cage fixing bracket 30, and the rotating cage assembly is movably connected with the rotating cage fixing bracket 30;

[0104] The floating unit includes two symmetrically arranged floating bodies 32. The left and right sides of the bottom end of the rotating cage fixing bracket 30 are respectively fixed above the left and right floating bodies 32;

[0105] The rotating cage assembly includes a rotating cage filter screen 27, a rotating cage filter screen bracket 28, a water filter side plate 29 and a central pipe shaft 31. The two water filter side plates 29 are connected by a plurality of rotating cage filter screen brackets 28. The rotating cage filter screen 27 is fixed on the rotating cage filter screen bracket 28, and the rotating cage filter screen 27 is used for filtering the incoming water.

[0106] The left and right ends of the central pipe shaft 31 are fixed above the rotating cage fixing bracket 30. The central pipe shaft 31 horizontally penetrates through the left and right water filter side plates 29, and the water filter side plates 29 are rotatably connected with the central pipe shaft 31.

[0107] The water filter side plate 29 is movably connected with the floating body 32, and a plurality of water holding hoppers 26 are arranged on the water filter side plate 29.

[0108] A water supply unit is arranged in the rotating cage filter screen 27, and the water supply unit is used for pumping the filtered incoming water in the rotating cage filter screen 27;

[0109] The water supply unit includes the above-mentioned integrated pump 21, the main integrated pump water outlet pipe 22, the branch integrated pump water outlet pipe 23, the main integrated pump water outlet pipe 24, and the backwash water pipe 25. Both ends of the integrated pump 21 are communicated with the main integrated pump water outlet pipe 22 and the branch integrated pump water outlet pipe 23 respectively. One end of the main integrated pump water outlet pipe 24 is connected to the main integrated pump water outlet pipe 22, and the other end of the main integrated pump water outlet pipe 24 passes through the central pipe shaft 31 and is externally connected to a water conveyance pipeline. One end of the backwash water pipe 25 is connected to the branch integrated pump water outlet pipe 23, and the other end of the backwash water pipe 25 is used to wash the rotary cage filter 27 and supply water to the water holding hopper 26. The gravity of several water holding hoppers 26 drives the rotary cage assembly to rotate.

[0110] In this embodiment, the side plate 29 of the water filter machine is rotationally connected to the central pipe shaft 31 through a rotary cage fixed bearing 33.

[0111] In this embodiment, the integrated pump 21 includes a pump main body 1, a first impeller water outlet 4, and a second impeller water outlet 11. The first impeller water outlet 4 is provided at one end of the pump main body 1, and the second impeller water outlet 11 is provided at the other end of the pump main body 1. The first impeller water outlet 4 has a large flow rate and a small head for water output, and the second impeller water outlet 11 has a small flow rate and a large head for water output.

[0112] The main integrated pump water outlet pipe 22 is connected to the integrated pump 21 through the first impeller water outlet 4, and the branch pump water outlet pipe 23 is connected to the integrated pump 21 through the second impeller water outlet 11.

[0113] In this embodiment, the integrated pump 21 is externally connected to a power source through a pump power cord 34, and the pump power cord 34 is arranged inside the pipe on the other side of the central pipe shaft 31.

[0114] In this embodiment, several spray heads are provided on the backwash water pipe 25.

[0115] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present utility model according to the disclosure of the present utility model should be within the protection scope of the present utility model.

Claims

1. A dual-lift, dual-flow integrated pump, characterized in that: include: Water pump body (1); A water pump motor (2): which is arranged in the water pump body (1); A first impeller (7): connected to one end of the water pump motor (2), the first impeller (7) being used to discharge water at a large flow rate and low head from one end of the water pump body (1); The second impeller (8) is connected to the other end of the water pump motor (2). The second impeller (8) is used to discharge water at a small flow rate and high head from the other end of the water pump body (1).

2. The dual-lift, dual-flow integrated pump according to claim 1, characterized in that: The two ends of the water pump motor (2) are respectively connected to the first impeller (7) and the second impeller (8) via the water pump motor main shaft (3); A first main shaft fixing hole (12) is provided at the center of the first impeller (7), and one end of the main shaft (3) of the water pump motor passes through the main shaft fixing hole (12) and is fixedly connected to the first impeller (7); A second main shaft fixing hole (18) is provided at the center of the second impeller (8), and the other end of the main shaft (3) of the water pump motor passes through the second main shaft fixing hole (18) and is fixedly connected to the second impeller (8).

3. The dual-lift, dual-flow integrated pump according to claim 1, characterized in that: The integrated pump further comprises a first impeller housing (5) and a second impeller housing (10); one end of the water pump body (1) is connected to the first impeller housing (5), and the other end of the water pump body (1) is connected to the second impeller housing (10); the first impeller (7) is located in the first impeller housing (5), and the second impeller (8) is located in the second impeller housing (10).

4. The dual-lift, dual-flow integrated pump according to claim 3, characterized in that: The first impeller housing (5) is provided with a first impeller water inlet housing (6) and a first impeller water outlet (4); a first impeller water inlet guide hole (15) is provided at the center of the first impeller water inlet housing (6); the first impeller water outlet (4) is provided on the top surface or the bottom surface of the first impeller housing (5) and forms an angle of 90° with a central vertical line of the first impeller water inlet guide hole (15); The second impeller housing (10) is provided with a second impeller water inlet housing (9) and a second impeller water outlet (11); a second impeller water inlet guide hole (19) is provided at the center of the second impeller water inlet housing (9); the second impeller water outlet (11) is provided on the top surface or the bottom surface of the second impeller housing (10) and forms an angle of 90° with a central vertical line of the second impeller water inlet guide hole (19).

5. The dual-lift, dual-flow integrated pump according to claim 4, characterized in that: The diameter of the first impeller water outlet (4) is greater than the diameter of the second impeller water outlet (11), and the diameter of the first impeller water inlet guide hole (15) is greater than the diameter of the second impeller water inlet guide hole (19).

6. The dual-lift, dual-flow integrated pump according to claim 1, characterized in that: The first impeller (7) comprises a plurality of first impeller blades (14) and a plurality of first impeller grooves (13); the plurality of first impeller blades (14) are radially arranged along the center of the first impeller (7); and a first impeller groove (13) is provided between two adjacent first impeller blades (14); The second impeller (8) comprises a plurality of second impeller blades (16) and a plurality of second impeller grooves (17); the plurality of second impeller blades (16) are radially arranged along the center of the second impeller (8); and a second impeller groove (17) is provided between two adjacent second impeller blades (16).

7. The dual-lift, dual-flow integrated pump according to claim 6, characterized in that: The first impeller blade (14) is an arc-shaped plate-like protrusion, the first impeller groove (13) is an arc-shaped concave area, the second impeller blade (16) is an arc-shaped plate-like protrusion, and the second impeller groove (17) is an arc-shaped concave area; The diameter of the first impeller (7) is smaller than the diameter of the second impeller (8), The number of the first impeller blades (14) is less than the number of the second impeller blades (16), The number of the first impeller grooves (13) is less than the number of the second impeller grooves (17), and the average width of the first impeller grooves is greater than the average width of the second impeller grooves.

8. A floating self-rotating backwashing water filter, characterized in that: The floating self-rotating backwashing water filter comprises a bracket unit, a water supply unit and a floating unit. The support unit comprises a rotating cage assembly and a rotating cage fixing support (30), the two ends of the rotating cage fixing support (30) are fixed above the floating unit, the rotating cage assembly is arranged on the rotating cage fixing support (30), and the rotating cage assembly is movably connected to the rotating cage fixing support (30); The floating unit comprises two symmetrically arranged floating bodies (32), and the left and right sides of the bottom end of the rotating cage fixing bracket (30) are respectively fixed above the left and right floating bodies (32); The tumbler assembly comprises a tumbler filter (27), a tumbler filter bracket (28), a water filter side plate (29) and a central tube shaft (31). Two of the water filter side plates (29) are connected via a plurality of tumbler filter brackets (28). The tumbler filter (27) is fixed on the tumbler filter bracket (28). The tumbler filter (27) is used to filter incoming water. The left and right ends of the central tube shaft (31) are fixed above the rotating cage fixing bracket (30), and the central tube shaft (31) transversely penetrates the left and right water filter side plates (29), and the water filter side plates (29) are rotatably connected to the central tube shaft (31). The water filter side plate (29) is movably connected to the float (32), and a plurality of water hoppers (26) are provided on the water filter side plate (29). A water supply unit is provided in the rotary cage filter (27), and the water supply unit is used to extract the influent water filtered in the rotary cage filter (27); The water supply unit comprises an integrated pump (21), an integrated pump water outlet main pipe (22), an integrated pump water outlet branch pipe (23), an integrated pump water outlet main pipe (24) and a backwash water pipe (25) as described in any one of claims 1 to 7. The two ends of the integrated pump (21) are respectively connected to the integrated pump water outlet main pipe (22) and the integrated pump water outlet branch pipe (23). One end of the integrated pump water outlet main pipe (24) is connected to the integrated pump water outlet main pipe (22). The other end of the integrated pump water outlet main pipe (24) passes through the central pipe axis (31) and is connected to an external water supply pipeline. One end of the backwash water pipe (25) is connected to the integrated pump water outlet branch pipe (23). The other end of the backwash water pipe (25) is used to wash the cage filter (27) and supply water to the water bucket (26). The gravity of a plurality of the water buckets (26) drives the cage assembly to rotate.

9. A floating self-rotating backwashing water filter according to claim 8, characterized in that: The integrated pump (21) comprises a water pump body (1), a first impeller water outlet (4) and a second impeller water outlet (11), wherein the first impeller water outlet (4) is arranged at one end of the water pump body (1), and the second impeller water outlet (11) is arranged at the other end of the water pump body (1), the first impeller water outlet (4) is for high flow rate and low head water outlet, and the second impeller water outlet (11) is for low flow rate and high head water outlet; The integrated pump water outlet main pipe (22) is connected to the integrated pump (21) via the first impeller water outlet (4), and the integrated pump water outlet branch pipe (23) is connected to the integrated pump (21) via the second impeller water outlet (11).

10. A floating self-rotating backwashing water filter according to claim 8, characterized in that: The integrated pump (21) is connected to an external power source via a water pump power line (34), and the water pump power line (34) is arranged in the tube on the other side of the central tube axis (31).

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