Wellbore submersible axial flow pump

Abstract

This utility model relates to the field of wellbore axial flow pump technology, and discloses a wellbore submersible axial flow pump, including a support plate, an axial flow pump, a boom structure, a wellbore, a pump ring, a water outlet cylinder, and a well cover. The top of the wellbore is connected and fixed to the well cover via a wellbore flange. The pump ring is integrally formed and fixed to the bottom of the wellbore. The pump ring is funnel-shaped with a large opening at the top and a small opening at the bottom. The water outlet cylinder is welded to the upper outer side of the wellbore, and a water outlet cylinder flange is provided at the front end of the water outlet cylinder. The support plate is horizontally welded to the outer side of the wellbore. The upper part of the axial flow pump is connected to the boom structure, which is installed inside the upper part of the wellbore. The bottom of the axial flow pump is fitted inside the pump ring. This utility model can avoid vertical shaking and displacement of the pump and the wellbore while ensuring convenient installation of the axial flow pump, thereby improving the drainage efficiency and stability of the pump.

Description

Technical Field

[0001] This utility model relates to the field of wellbore axial flow pump technology, and in particular to a wellbore submersible axial flow pump. Background Technology

[0002] Axial flow pumps installed in well shafts eliminate the complex shaft alignment and assembly process required in traditional pumping stations, simplifying the installation process and saving time and costs. Furthermore, because the pump body operates submerged in water, it enjoys excellent cooling conditions, eliminates high temperatures within the pumping station, and produces low noise, allowing for continuous and stable operation over extended periods. Therefore, it has wide applications in fields such as farmland irrigation and drainage, water supply projects, and power plant water supply and drainage.

[0003] Existing axial flow pump well-type installation structures, designed for convenient underwater installation and maintenance, primarily utilize the pump's own weight to mount it within a well. During maintenance, the pump is simply pulled out. While this method is convenient, pump vibration and the back pressure during drainage can still cause vertical swaying or even displacement between the pump's bottom and the well, affecting drainage efficiency and pump stability. For example, Chinese utility model patent application CN201820167761.X, entitled "An Improved Well-Type Installation Structure for Submersible Axial Flow Pumps," simplifies the installation process, mitigates damage caused by pump lifting, protects the pump cable, and improves pump stability. However, it still faces the challenge of vertical swaying or even displacement between the pump's bottom and the well. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a well-type submersible axial flow pump that can avoid vertical shaking and displacement of the pump and the well while ensuring the ease of installation of the axial flow pump, thereby improving the drainage efficiency and stability of the pump.

[0005] This utility model is achieved using the following technical solution: a well-type submersible axial flow pump, comprising a support plate, an axial flow pump, a boom structure, a well, a pump ring, a water outlet cylinder, and a well cover. The top of the well is connected and fixed to the well cover via a well flange. The pump ring is integrally formed and fixed to the bottom of the well. The pump ring is funnel-shaped with a large opening at the top and a small opening at the bottom. The water outlet cylinder is welded to the upper outer side of the well, and a water outlet cylinder flange is provided at the front end of the water outlet cylinder. The support plate is horizontally welded to the outer side of the well. The upper part of the axial flow pump is connected to the boom structure, which is installed inside the upper part of the well. The bottom of the axial flow pump is fitted inside the pump ring.

[0006] Furthermore, two limiting seats are symmetrically fixed on both sides of the upper part of the well barrel, and the limiting seats have hollow grooves inside. The upper two ends of the lifting rod structure are set in the two limiting seats.

[0007] Furthermore, the boom structure includes a tie rod, a connecting seat, a crossbar, and a connecting plate. There are two crossbars, and the outer ends of the two crossbars are connected and fixed together by two connecting plates. A limiting groove for the tie rod is formed between the ends of the two crossbars and the two connecting plates. The upper end of the tie rod passes through the limiting groove, and the outer end of the crossbar is inserted into the empty groove inside the limiting seat. The connecting seat is fixed to the bottom end of the tie rod.

[0008] Furthermore, a lifting frame is fixed to the pull rod below the crossbar.

[0009] Furthermore, several ribs are symmetrically welded between the support plate and the outer wall of the well shaft, and each rib is provided with a rib through hole.

[0010] Furthermore, several lifting rings are symmetrically fixed to the top of the manhole cover.

[0011] Furthermore, a pull ring is fixed to the outer side of the upper end of the axial flow pump by bolts, and the pull ring is connected to the connecting seat.

[0012] Furthermore, several waterproof gaskets are provided between the bottom of the axial flow pump and the pump ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model discloses a well-type submersible axial flow pump. After the axial flow pump is vertically installed into the pump ring, the upper end of the tie rod is fixed in the limiting groove. The tie rod limits the axial flow pump in the vertical direction, so that the axial flow pump and the well barrel can be prevented from shaking and displacing in the vertical direction when the axial flow pump is working, thereby improving the drainage efficiency and stability of the pump.

[0015] 2. The well-type submersible axial flow pump of this utility model can be vertically installed into the pump ring by hooking the lifting frame and lowering the pull rod; after removing the crossbar and connecting plate, the axial flow pump can be taken out by the pull rod, which makes the installation and maintenance of the axial flow pump convenient. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the well-type submersible axial flow pump of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model after removing the axial flow pump;

[0019] Figure 4 This is a schematic diagram of the structure of this utility model after removing the axial flow pump and the well cover;

[0020] Figure 5This is a schematic diagram of the suspension rod structure in this utility model;

[0021] Figure 6 This is a schematic diagram of the axial flow pump in this utility model.

[0022] In the diagram: Support plate-2; Axial flow pump-3; Lifting rod structure-4; Well shaft-11; Pump ring-12; Water outlet cylinder-13; Well cover-14; Rib plate-21; Pull ring-31; Pull rod-41; Connecting seat-42; Lifting frame-43; Crossbar-44; Connecting plate-45; Limiting seat-111; Lifting ring-141. Detailed Implementation

[0023] 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.

[0024] The purpose of this invention is to address the shortcomings of existing technologies by providing a well-type submersible axial flow pump.

[0025] Example 1

[0026] This embodiment provides a well-type submersible axial flow pump, referring to... Figures 1-3 As shown, the structure includes a support plate 2, an axial flow pump 3, a lifting rod structure 4, a well shaft 11, a pump ring 12, a water outlet cylinder 13, and a well cover 14. The top of the well shaft 11 is connected and fixed to the well cover 14 via a well shaft flange. The well cover 14 is installed with bolts and can be disassembled. Two lifting rings 141 are symmetrically fixed to the top of the well cover 14 for lifting the well cover 14 and the well shaft 11. The pump ring 12 is integrally formed and fixed to the bottom of the well shaft 11. The pump ring 12 is funnel-shaped with a large opening at the top and a small opening at the bottom. The water outlet cylinder 13 is welded to the upper outer side of the well shaft 11. The front end of the water outlet cylinder 13 is provided with a water outlet cylinder flange for connecting to a drainage pipe. The support plate 2 is horizontally welded to the outside of the well casing 11 to support and install the well casing 11 and its fixed structures. The upper part of the axial flow pump 3 is connected to the lifting rod structure 4, which is installed inside the upper part of the well casing 11. The lifting rod structure 4 can fix and vertically raise and lower the axial flow pump 3. The bottom of the axial flow pump 3 is fitted into the pump ring 12. Several waterproof gaskets are provided between the bottom of the axial flow pump 3 and the pump ring 12 to improve the sealing between the bottom of the axial flow pump 3 and the pump ring 12.

[0027] Reference Figures 1-2As shown, two limiting seats 111 are symmetrically fixed on both sides of the upper part of the well shaft 11. The limiting seats 111 form a hollow groove inside, and the upper two ends of the lifting rod structure 4 are set in the two limiting seats 111.

[0028] Reference Figures 2-5 As shown, the boom structure 4 includes a tie rod 41, a connecting seat 42, a crossbar 44, and a connecting plate 45. There are two crossbars 44, and their outer ends are connected and fixed together by two connecting plates 45. A limiting groove for the tie rod 41 is formed between the ends of the two crossbars 44 and the two connecting plates 45. The upper end of the tie rod 41 passes through the limiting groove. The upper part of the tie rod 41 can be pressed and fixed in the limiting groove by a long bolt. That is, tightening the long bolt on the connecting plate 45 will press the upper part of the tie rod 41 and fix it in the limiting groove; loosening the long bolt on the connecting plate 45 will not press the tie rod 41, allowing the tie rod 41 to move vertically in the limiting groove. The outer end of the crossbar 44 is inserted into the empty groove inside the limiting seat 111, and the connecting seat 42 is fixed to the bottom end of the tie rod 41. A lifting frame 43 is fixed on the pull rod 41 below the crossbar 44. In this embodiment, the lifting frame 43 is triangular, with hook holes formed in the center of both sides, which can be hooked and pulled to lift the pull rod 41.

[0029] Reference Figure 4 As shown, four ribs 21 are symmetrically welded between the support plate 2 and the outer wall of the well shaft 11. Each rib 21 is provided with a rib through hole for assisting in the hoisting of the support plate 2, the well cover 14 and the well shaft 11.

[0030] Reference Figure 2 , Figure 6 As shown, a pull ring 31 is fixed to the outer side of the upper end of the axial flow pump 3 by bolts, and the pull ring 31 is connected to the connecting seat 42.

[0031] This utility model discloses a well-type submersible axial flow pump. In use, the well casing 11 and support plate 2 are hoisted into the pre-reserved opening in the civil engineering structure via hooks through the rib plate through-holes. The support plate 2 is then installed and fixed in place. The connecting seat 42 is connected and fixed to the pull ring 31. The pull rod 41 is lowered by hooking the lifting frame 43, allowing the axial flow pump 3 to be vertically installed into the pump ring 12. Under its own weight, the bottom of the axial flow pump 3 fits snugly inside the pump ring 12, with a waterproof gasket provided to improve sealing.

[0032] Then, the two crossbars 44 in the boom structure 4 are connected and fixed by the connecting plate 45, so that the two ends of the crossbars 44 are inserted and fixed in the two limiting seats 111. The upper end of the tie rod 41 passes through the limiting groove. Tighten the long bolt on the connecting plate 45 so that its front end presses against the tie rod 41 and fixes it in the limiting groove. In this way, the tie rod 41 is used to limit the axial flow pump 3 in the vertical direction, so that the axial flow pump 3 is not excessively shaken and displaced in the vertical direction under the influence of vibration and drainage backlash force during operation, thereby improving the drainage efficiency and stability of the pump. When the axial flow pump 3 needs to be repaired, the crossbars 44 and the connecting plate 45 can be removed and the axial flow pump 3 can be taken out through the tie rod 41, making the maintenance of the axial flow pump convenient.

[0033] 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 shaft sunk submersible axial flow pump characterised in that: The well includes a support plate (2), an axial flow pump (3), a boom structure (4), a well shaft (11), a pump ring (12), a water outlet cylinder (13), and a well cover (14). The top of the well shaft (11) is connected and fixed to the well cover (14) through a well shaft flange. The pump ring (12) is integrally formed and fixed to the bottom of the well shaft (11). The pump ring (12) is funnel-shaped with a large opening at the top and a small opening at the bottom. The water outlet cylinder (13) is welded to the upper outer side of the well shaft (11), and a water outlet cylinder flange is provided at the front end of the water outlet cylinder (13). The support plate (2) is horizontally welded to the outer side of the well shaft (11). The upper part of the axial flow pump (3) is connected to the boom structure (4). The boom structure (4) is installed inside the upper part of the well shaft (11). The bottom of the axial flow pump (3) is fitted inside the pump ring (12). The aforementioned rod structure (4) includes a tie rod (41), a connecting seat (42), a crossbar (44), and a connecting plate (45). There are two crossbars (44). The outer ends of the two crossbars (44) are connected and fixed by two connecting plates (45). A limiting groove for the tie rod (41) is formed between the ends of the two crossbars (44) and the two connecting plates (45). The upper end of the tie rod (41) passes through the limiting groove, and the outer end of the crossbar (44) is inserted into the empty groove inside the limiting seat (111). The connecting seat (42) is fixed to the bottom end of the tie rod (41).

2. The wellbore submersible mixed flow pump of claim 1, wherein: Two limiting seats (111) are symmetrically fixed on both sides of the upper part of the well shaft (11). The limiting seats (111) form a hollow groove inside. The upper two ends of the lifting rod structure (4) are set in the two limiting seats (111).

3. A submersible mixed flow pump of the wellbore type according to claim 2, characterized in that: A lifting frame (43) is fixed on the pull rod (41) below the crossbar (44).

4. A wet pit axial flow pump of the type defined by any one of claims 1 to 3, characterised in that: Several ribs (21) are symmetrically welded between the support plate (2) and the outer wall of the well shaft (11), and each rib (21) is provided with a rib through hole.

5. A submersible mixed flow pump of the wellbore type according to claim 4, characterized in that: The top of the manhole cover (14) is symmetrically fixed with several lifting rings (141).

6. The wellbore submersible mixed flow pump of claim 1, wherein: The upper outer side of the axial flow pump (3) is fixed with a pull ring (31) by bolts, and the pull ring (31) is connected to the connecting seat (42).

7. The wellbore submersible mixed flow pump of claim 4, wherein: Several waterproof gaskets are provided between the bottom of the axial flow pump (3) and the pump ring (12).

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