Vertical sleeve-mounted axial flow pump

Abstract

The utility model relates to the technical field of axial flow pumps, and discloses a vertical sleeve-mounted axial flow pump, which comprises a vertical support, a shaft and an axial flow pump, the vertical support is vertically arranged and fixed at the bottom end of the shaft, and the axial flow pump is mounted in the shaft; the shaft comprises a middle cylinder, an upper cylinder, a middle cylinder flange and a cable seat, the upper cylinder is integrally arranged at the top of the middle cylinder, the diameter of the upper cylinder is decreased from bottom to top, the middle cylinder flange is welded to the bottom end of the middle cylinder, an upper cylinder flange is welded to the top end of the upper cylinder, and the cable seat is fixed to the outer side of the upper cylinder. The vertical support comprises supporting frames, a bottom supporting ring and a butt clamp flange, the bottom supporting ring and the butt clamp flange are connected and fixed through a plurality of supporting frames, and a gap is reserved between every two adjacent supporting frames. The axial flow pump comprises a pump body, a guide vane body, a middle shell and a horn mouth, the guide vane body is arranged at the outer end of the pump body, and the middle shell is fixed to the bottom end of the guide vane body. The filter is convenient to mount and dismount, compact in structure, small in occupied space and good in filtering effect.

Description

Technical Field

[0001] This utility model relates to the field of axial flow pump technology, and in particular to a vertical sleeve-mounted axial flow pump. Background Technology

[0002] Submersible axial flow pumps are mainly used in applications requiring low head and high flow rates, such as farmland irrigation, urban water supply and drainage, and power plant wastewater discharge. There are several installation methods for axial flow pumps, such as coupled installation and well-type installation. Coupled installation offers the advantage of convenient installation and maintenance; the pump can be directly lifted for repairs without needing to be submerged. However, its coupled structure occupies a large space, resulting in high construction costs. Well-type installation offers the advantage of low construction costs, but installation and disassembly are more complex.

[0003] Existing technologies also include some vertical sleeve-mounted axial flow pumps, such as the Chinese utility model patent with application number CN96232268.7 entitled "Well Vertical Axial Flow Pump." This allows the well-type pump components to be directly lifted in and out of the well by a crane, reducing manual labor and facilitating installation and maintenance. However, its outlet is side-opening, the connection between the well and the pump body is not tight enough, installation and disassembly are inconvenient, and it requires a large installation space. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a vertical sleeve-mounted axial flow pump, which is easy to install and disassemble, has a compact structure, occupies little space, and has a good filtration effect.

[0005] This utility model is achieved using the following technical solution: a vertical sleeve-mounted axial flow pump, comprising a vertical support, a well casing, and an axial flow pump. The vertical support is vertically arranged and fixed to the bottom end of the well casing. The axial flow pump is installed inside the well casing. The well casing includes a middle cylinder, an upper cylinder, a middle cylinder flange, and cable seats. The upper cylinder is integrally formed and located on top of the middle cylinder. The diameter of the upper cylinder decreases from bottom to top. The middle cylinder flange is welded to the bottom end of the middle cylinder. An upper cylinder flange is welded to the top end of the upper cylinder. Several cable seats are fixed to the outside of the upper cylinder.

[0006] Furthermore, the vertical support includes a support frame, a bottom support ring, and a clamping flange. The bottom support ring and the clamping flange are connected and fixed by several support frames, and gaps are left between adjacent support frames.

[0007] Furthermore, the axial flow pump includes a pump body, a guide vane body, a middle section outer shell, and a bell mouth. The guide vane body is disposed at the outer end of the pump body, the middle section outer shell is fixed at the bottom end of the guide vane body, the bell mouth is fixed at the bottom end of the middle section outer shell, and the outer ring of the guide vane body is clamped and fixed between the middle cylinder flange and the clamping flange.

[0008] Furthermore, a cable gland is connected to the cable holder by screws.

[0009] Furthermore, a filter cover is fixed to the bottom end of the flared mouth.

[0010] Furthermore, several lifting rings are symmetrically welded to the outer side of the upper part of the middle cylinder.

[0011] Furthermore, two pump body hangers are symmetrically fixed on both sides of the top of the pump body.

[0012] Compared to existing technologies, the advantages of this utility model are as follows: This utility model provides a vertical sleeve-mounted axial flow pump, in which the axial flow pump is fixed between the middle cylinder flange and the clamping flange via the outer ring of the guide vane. Its connection method is simple, facilitating the connection and disassembly of the vertical support, well shaft, and axial flow pump. It occupies little space vertically, can be fixed by the bottom support ring, and can be lifted out as a whole during installation and disassembly using lifting rings. It also effectively blocks small and large debris in the water, providing good filtration and allowing the pump to operate better in sewage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the vertical sleeve-mounted axial flow pump of this utility model;

[0014] Figure 2 This is the front view of this utility model;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model after the well shaft is removed;

[0017] Figure 5 This is a schematic diagram of the well shaft structure in this utility model.

[0018] In the diagram: Vertical support-1; Well shaft-2; Cable gland-3; Axial flow pump-4; Support frame-11; Bottom support ring-12; Clamp flange-13; Middle cylinder-21; Upper cylinder-22; Middle cylinder flange-23; Cable seat-24; Lifting ring-25; Pump body-41; Pump body hanger-42; Guide vane-43; Middle section outer shell-44; Bell mouth-45; Filter cover-46. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0020] The purpose of this invention is to address the shortcomings of existing technologies by providing a vertical sleeve-mounted axial flow pump.

[0021] Example 1

[0022] This embodiment provides a vertical sleeve-mounted axial flow pump, referring to... Figures 1-2 As shown, it includes a vertical support 1, a wellbore 2, and an axial flow pump 4. The vertical support 1 is set vertically and fixed to the bottom end of the wellbore 2 to provide vertical support and fixation for the wellbore 2. The axial flow pump 4 is installed inside the wellbore 2.

[0023] Reference Figure 5 As shown, the well casing 2 includes a middle casing 21, an upper casing 22, a middle casing flange 23, and cable seats 24. The upper casing 22 is integrally formed and located on top of the middle casing 21. The diameter of the upper casing 22 decreases from bottom to top. The middle casing flange 23 is welded to the bottom end of the middle casing 21, and the upper casing flange is welded to the top end of the upper casing 22. Several cable seats 24 are fixed to the outside of the upper casing 22. Cable glands 3 are connected to the cable seats 24 by screws, which are used to lead out and pull close to fix the cable of the axial flow pump 4, preventing it from swinging under the impact of the water flow inside the well casing 2. Two lifting rings 25 are symmetrically welded to the upper outer side of the middle casing 21 for hoisting the vertical sleeve-mounted axial flow pump of this utility model as a whole, which is convenient for installation and use.

[0024] Reference Figure 4 As shown, the vertical support 1 includes a support frame 11, a bottom support ring 12 and a clamping flange 13. The bottom support ring 12 and the clamping flange 13 are connected and fixed by several support frames 11. There are gaps between adjacent support frames 11 to block large debris in the water.

[0025] Reference Figures 3-4As shown, the axial flow pump 4 includes a pump body 41, a guide vane body 43, a middle section outer shell 44, and a bell mouth 45. The guide vane body 43 is located at the outer end of the pump body 41, the middle section outer shell 44 is fixed to the bottom end of the guide vane body 43, and the bell mouth 45 is fixed to the bottom end of the middle section outer shell 44. The outer ring of the guide vane body 43 is clamped and fixed between the middle cylinder flange 23 and the clamping flange 13. A filter cover 46 is fixed to the bottom end of the bell mouth 45 for filtering small impurities in the water. Two pump body hangers 42 are symmetrically fixed on both sides of the top of the pump body 41 for hoisting the axial flow pump 4 when it is installed in the well shaft 2.

[0026] This embodiment provides a vertical sleeve-mounted axial flow pump, wherein the axial flow pump 4 is fixed between the middle cylinder flange 23 and the clamping flange 13 by the outer ring of the guide vane body 43. The middle cylinder flange 23 and the clamping flange 13 are connected by bolts. The connection method is simple and facilitates the connection and disassembly of the vertical support 1, the well 2, and the axial flow pump 4. The upper part of the axial flow pump 4 is located inside the well 2, and the lower part is located inside the vertical support 1. The overall shape of the vertical support 1 and the well 2 is circular, which occupies little space in the vertical direction. It can be fixed between the bottom support ring 12 at the bottom of the vertical support 1 and the bottom foundation. It can be lifted out as a whole by the lifting ring 25 during installation and disassembly. Through the cooperation of the filter cover 46 and the support frame 11, it can also effectively block small and large debris in the water, so that the pump can work better in sewage.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vertical sleeve-mounted axial flow pump, characterized in that: The system includes a vertical support (1), a wellbore (2), and an axial flow pump (4). The vertical support (1) is vertically installed and fixed at the bottom of the wellbore (2). The axial flow pump (4) is installed inside the wellbore (2). The wellbore (2) includes a middle cylinder (21), an upper cylinder (22), a middle cylinder flange (23), and a cable seat (24). The upper cylinder (22) is integrally formed and installed on the top of the middle cylinder (21). The diameter of the upper cylinder (22) decreases from bottom to top. The middle cylinder flange (23) is welded to the bottom of the middle cylinder (21). The upper cylinder flange is welded to the top of the upper cylinder (22). Several cable seats (24) are fixed on the outside of the upper cylinder (22).

2. The vertical sleeve-mounted axial flow pump according to claim 1, characterized in that: The vertical support (1) includes a support frame (11), a bottom support ring (12) and a clamping flange (13). The bottom support ring (12) and the clamping flange (13) are connected and fixed by several support frames (11), and gaps are left between adjacent support frames (11).

3. The vertical sleeve-mounted axial flow pump according to claim 2, characterized in that: The axial flow pump (4) includes a pump body (41), a guide vane body (43), a middle section shell (44), and a bell mouth (45). The guide vane body (43) is disposed at the outer end of the pump body (41). The middle section shell (44) is fixed at the bottom end of the guide vane body (43). The bell mouth (45) is fixed at the bottom end of the middle section shell (44). The outer ring of the guide vane body (43) is clamped and fixed between the middle cylinder flange (23) and the clamping flange (13).

4. The vertical sleeve-mounted axial flow pump according to any one of claims 1 to 3, characterized in that: The cable holder (24) is connected to a cable gland (3) by screws.

5. The vertical sleeve-mounted axial flow pump according to claim 3, characterized in that: A filter cover (46) is fixed to the bottom of the horn mouth (45).

6. The vertical sleeve-mounted axial flow pump according to claim 4, characterized in that: Several lifting rings (25) are symmetrically welded to the outer side of the upper part of the middle cylinder (21).

7. The vertical sleeve-mounted axial flow pump according to claim 3, characterized in that: Two pump body hangers (42) are symmetrically fixed on both sides of the top of the pump body (41).

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