High-lift multistage submersible pump

Abstract

The utility model discloses a high-lift multi-stage submersible pump which comprises a pump body, a motor, a water conveying pipe and a water inlet pressurizing assembly. The water conveying pipe is fixedly connected with the pump body, and a pump shaft is arranged in the water conveying pipe and rotates synchronously with an output shaft of the motor. The water inlet pressurizing assembly is arranged at the tail end of the water conveying pipe and comprises a water inlet, a pressurizing unit and a filter screen. The plurality of pressurizing units are arranged in series; each pressurizing unit comprises an outer shell and a turbine, and the turbine and the pump shaft rotate synchronously. By means of the turbine design of the spiral blades, the suction capacity and the pressurization lifting capacity of the pump are enhanced. The lift of the submersible pump can be effectively improved, and the submersible pump is suitable for water lifting operation with higher requirements. The multi-stage pressurizing design is adopted, so that the working efficiency of the pump is improved. The device is reasonable in structural design and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a high-lift multi-stage submersible pump. Background Art

[0002] Submersible pump is a kind of water-lifting equipment widely used in agricultural irrigation and drainage, environmental protection, municipal engineering, water conservancy engineering, urban and industrial and mining water supply and drainage, industrial thermal power station circulating water, dock water level, water diversion engineering, drought resistance and flood drainage, etc. It is composed of a submersible motor and a water pump, and has the characteristics of compact structure, easy use and low price.

[0003] Traditional submersible pumps usually have only one or two-stage impellers, and their head and flow are limited. When the head needs to be increased, it is necessary to replace the submersible pump with a larger impeller, which not only increases the cost, but also increases the size and weight of the equipment. Therefore, it is necessary to design a new submersible pump that can increase the head while maintaining a smaller size and weight. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems and provide a high-lift multi-stage submersible pump. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A high-lift multi-stage submersible pump comprises a pump body, a motor, a water pipe and a water inlet pressurizing assembly; the water pipe is fixedly connected to the pump body, a pump shaft is arranged in the water pipe, and the pump shaft rotates synchronously with the output shaft of the motor;

[0006] The water inlet pressurizing assembly is arranged at the end of the water delivery pipe, and the immersion pressurizing assembly includes a water inlet, a pressurizing unit and a filter; the number of the pressurizing units is multiple and they are arranged in series; each of the pressurizing units includes an outer shell and a turbine, and the turbine rotates synchronously with the pump shaft.

[0007] As an improvement, the water inlet pressurizing assembly is connected to the water pipe via a flange.

[0008] As an improvement, a seat disc is provided at the bottom of the center of the turbine and a top sheet is provided at the top, and spiral blades are provided between the seat disc and the top sheet.

[0009] As an improvement, the diameter of the seat disc is larger than the diameter of the top plate, so that the turbine forms a liquid outlet at the blade position.

[0010] As an improvement, a bearing for fixing the pump shaft is provided in the water delivery pipe.

[0011] As an improvement, a water outlet connected to a water pipe is provided on one side of the pump body.

[0012] The advantages of the utility model are:

[0013] The utility model enhances the suction capacity and pressurization and lifting capacity of the pump through the turbine design of spiral blades. The utility model can effectively improve the head of the submersible pump and is suitable for water lifting operations with higher requirements. The utility model adopts a multi-stage pressurization design to improve the working efficiency of the pump. The utility model has a reasonable structural design and is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a high-lift multi-stage submersible pump in Example 1.

[0015] Figure 2 This is a structural diagram of the top of a high-lift multi-stage submersible pump in Example 1.

[0016] Figure 3 This is a structural diagram of the pressurizing unit in a high-lift multi-stage submersible pump in Example 1.

[0017] Figure 4 This is a structural diagram of a turbine in a high-lift multi-stage submersible pump in Example 1.

[0018] Indicated in the figure:

[0019] 1- pump body, 11- water outlet, 2- motor, 3- water pipe, 31- shaft pump, 32- bearing, 4- water inlet pressurizing assembly, 41- water inlet, 42- pressurizing unit, 421- outer shell, 422- worm gear, 423- seat plate, 424- top plate, 425- blades, 426- liquid outlet, 43- filter screen, 5- flange. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, they can be fixedly connected or can be connected in a fixed manner.

[0025] The connection may be detachable or integral; it may be mechanical or electrical; it may be directly connected or indirectly connected through an intermediate medium, or it may be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] Example 1

[0027] This embodiment discloses a high-lift multi-stage submersible pump, comprising a pump body 1, a motor 2, a water pipe 3 and a water inlet pressurizing assembly 4. The water pipe 3 is fixedly connected to the pump body 1, and a pump shaft 31 is arranged in the water pipe 3, and the pump shaft 31 rotates synchronously with the output shaft of the motor 2.

[0028] The water inlet pressurizing assembly 4 is arranged at the end of the water delivery pipe 3. The water inlet pressurizing assembly 4 is connected to the water delivery pipe 3 through a flange 5.

[0029] The water inlet pressurizing assembly 4 includes a water inlet 41, a pressurizing unit 42 and a filter 43. There are multiple pressurizing units 42, which are arranged in series; each pressurizing unit 42 includes an outer shell 421 and a turbine 422, and the turbine 422 rotates synchronously with the pump shaft 31.

[0030] The turbine 422 has a seat plate 423 at the bottom of the center and a top sheet 424 at the top, and a spiral blade 425 is provided between the seat plate 423 and the top sheet 424. The diameter of the seat plate 423 is larger than the diameter of the top sheet 424, so that the turbine 422 forms a liquid outlet 426 at the position of the blade 425.

[0031] A bearing 32 for fixing the pump shaft 31 is arranged in the water delivery pipe 3 .

[0032] A water outlet 11 connected to the water delivery pipe 3 is provided on one side of the pump body 1 .

[0033] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not equivalent to the specific embodiments described above. For those skilled in the art, any equivalent modification and substitution of the present invention is also within the scope of the present invention. Therefore, the equivalent transformation and modification made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. A high-lift multi-stage submersible pump, characterized in that: It includes a pump body, a motor, a water pipe and a water inlet pressurizing assembly; the water pipe is fixedly connected to the pump body, a pump shaft is arranged in the water pipe, and the pump shaft rotates synchronously with the output shaft of the motor; The water inlet pressurizing assembly is arranged at the end of the water delivery pipe, and the immersion pressurizing assembly includes a water inlet, a pressurizing unit and a filter; the number of the pressurizing units is multiple and they are arranged in series; each of the pressurizing units includes an outer shell and a turbine, and the turbine rotates synchronously with the pump shaft.

2. A high-lift multi-stage submersible pump according to claim 1, characterized in that: The water inlet pressurizing assembly is connected to the water delivery pipe via a flange.

3. A high-lift multistage submersible pump according to claim 1, characterized in that: A seat disc is provided at the bottom of the turbine center and a top sheet is provided at the top. Spiral blades are provided between the seat disc and the top sheet.

4. A high-lift multi-stage submersible pump according to claim 3, characterized in that: The diameter of the seat plate is greater than the diameter of the top plate, so that the turbine forms a liquid outlet at the blade position.

5. A high-lift multi-stage submersible pump according to claim 1, characterized in that: A bearing for fixing the pump shaft is arranged in the water delivery pipe.

6. A high-lift multi-stage submersible pump according to claim 1, characterized in that: A water outlet communicated with the water delivery pipe is arranged on one side of the pump body.

Images