CN112780570B

CN112780570B - Rim axial-flow pump

Info

Publication number: CN112780570B
Application number: CN202011504149.5A
Authority: CN
Inventors: 周源; 杨一帆; 陈炼; 贾海媛; 代潞
Original assignee: Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Current assignee: Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2023-03-10
Anticipated expiration: 2040-12-17
Also published as: CN112780570A

Abstract

The invention discloses an axial flow pump with a wheel rim, which comprises an integrated wheel rim pump and guide vane assemblies symmetrically arranged at the left side and the right side of the integrated wheel rim pump, wherein the guide vane assemblies are connected with external pipelines through flexible connecting pipes; the guide vane assembly comprises a connecting flange and a guide vane; the invention can realize fluid transportation, transmits mechanical energy to fluid in a pipeline, the guide vane assembly can stabilize and pre-swirl incoming flow, improves the system efficiency, the flexible connecting pipe can realize flexible installation of the bidirectional axial-flow pump and the external connecting pipe, and the bidirectional equivalent transportation of liquid media can be realized by the design of symmetrical blades when a plurality of the flexible connecting pipes are connected in series.

Description

Rim axial-flow pump

Technical Field

The invention relates to the field of fluid conveying machinery, in particular to a rim axial-flow pump.

Background

The existing traditional pump mostly adopts a structure of a vertical motor and a bevel gear, only can meet the one-way transportation function, and the sealing problem and the space problem of the vertical motor caused by the complex mechanical structure are solved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a rim axial-flow pump system which adopts a rim motor driving mode to solve the problems.

The technical scheme adopted by the invention for solving the technical problems is as follows: the wheel rim axial-flow pump comprises an integrated wheel rim pump and guide vane assemblies symmetrically arranged on the left side and the right side of the integrated wheel rim pump, wherein the guide vane assemblies are connected with external pipelines through flexible connecting pipes; the integrated rim pump comprises a rim pump rotor and a rim pump stator for driving the rim pump rotor at the outer side, and the rim pump stator and the rim pump rotor are supported and matched through a water lubrication thrust bearing, a water lubrication support bearing and a bearing friction pair; the rim pump stator comprises a rim motor connecting side end cover and a rim motor non-connecting side end cover which are axially arranged, and a stator sealing sleeve, a rim motor stator iron pivot and a rim motor shell which are radially arranged, wherein the rim motor connecting side end cover and the rim motor non-connecting side end cover are respectively connected with the water lubrication thrust bearing and the water lubrication support bearing, the rim motor shell, the rim motor stator iron pivot and the stator sealing sleeve form a sealing area, and a rotating magnetic field generated by the rim motor stator iron pivot drives the rim pump rotor to rotate; the guide vane assembly comprises a connecting flange and a guide vane.

A rim pump rotor of the rim axial-flow pump comprises pump blades, a rotor iron core, permanent magnets and a rotor sealing sleeve which are sequentially installed in the radial direction, bearing friction pairs are installed on two sides, and a magnetic field generated by a rim pump stator drives the pump blades to rotate through driving the permanent magnets, so that liquid in a pipeline is driven to move.

According to the wheel rim axial-flow pump, the pump blade comprises an incident flow edge and a flow removing edge, a connecting line of the incident flow edge and the flow removing edge is a chord line, a perpendicular line of a midpoint of the chord line is a perpendicular bisector, and the shapes of all wing sections of the pump blade are completely symmetrical according to the chord line and completely symmetrical according to the perpendicular bisector.

The invention has the beneficial effects that: the integrated rim pump, the guide vane assembly, the flexible connecting pipe and the external pipeline can realize fluid transportation, mechanical energy is transferred to fluid in the pipeline, the integrated rim pump, the guide vane assembly, the flexible connecting pipe and the external pipeline can be used independently, two or more pump vanes are connected in series for use, the pump vanes connected in series form a bidirectional symmetrical pump vane structure, the equal output lift flow at two sides can be ensured, the inflow direction of the rear end vane design can be matched with the outflow direction of the front end vane, energy recovery is realized, the guide vane assembly can stably pre-swirl the inflow, the system efficiency is improved, and the flexible connecting pipe can realize flexible installation of a bidirectional axial flow pump and the external connecting pipe.

Drawings

FIG. 1 is a schematic diagram of the general structure of the present invention;

FIG. 2 is a cross-sectional view of the general construction of the present invention;

FIG. 3 is a schematic view of the integrated rim pump configuration of the present invention;

FIG. 4 is a schematic view of a rim pump stator configuration of the present invention;

FIG. 5 is a schematic view of a rim pump rotor configuration of the present invention;

FIG. 6 is a schematic view of an integrated rim pump vane configuration of the present invention;

FIG. 7 is an airfoil schematic view of a pumping vane of the present invention.

The figures are numbered: 1000-rim axial flow pump, 1-integral rim pump, 2-vane assembly, 3-flexible nozzle, 4-external piping, 10-rim pump stator, 11-rim pump rotor, 20-flange, 21-vane, 101-rim motor connection side end cap, 102-rim motor housing, 103-rim motor stator armature, 104-rim motor non-connection side end cap, 105-stator gland, 106-water lubrication thrust bearing, 107-water lubrication support bearing, 111-bearing friction pair, 112-rotor gland, 113-permanent magnet, 114-rotor core, 115-pump vane, 1151-incident flow side, 1152-de-flow side, 1153-string, 1154-perpendicular bisector.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the various components in the drawings are drawn to a particular scale, these scaling relationships are exemplary only, and may be adjusted as needed by one skilled in the art to suit a particular application.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured or operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

According to an example of the present invention, as shown in fig. 1 and fig. 2, the rim axial-flow pump 1000 disclosed by the present invention includes an integrated rim pump 1, a guide vane assembly 2 connected to the integrated rim pump 1, and an external pipeline 4 connected to the guide vane assembly 2 through a flexible connection pipe 3, wherein two sets of the guide vane assembly 2, the flexible connection pipe 3, and the external pipeline 4 are symmetrically disposed on the left and right sides of the integrated rim pump 1.

Referring to fig. 3, in this embodiment, the integrated rim pump 1 includes a rim pump stator 10 and a rim pump rotor 11, the rim pump stator 10 drives the rim pump rotor 11 at the outside, and the rim pump stator 10 and the rim pump rotor 11 are supported and matched by a water-lubricated thrust bearing 106, a water-lubricated support bearing 107 and a bearing friction pair 111.

Referring to fig. 4, in this embodiment, the rim pump stator 10 includes a rim motor connecting side end cover 101, a rim motor casing 102, a rim motor stator iron pivot 103, a rim motor non-connecting side end cover 104, and a stator sealing cover 105. The rim motor connecting side end cover 101 and the rim motor non-connecting side end cover 104 are respectively connected with a water lubrication thrust bearing 106 and a water lubrication support bearing 107, the rim motor casing 102, the rim motor stator iron pivot 103 and the stator sealing sleeve 105 are installed to form a sealing area, and a rotating magnetic field is generated by the rim motor stator iron pivot 103 to drive the rim pump rotor 11 to rotate.

Referring to fig. 5, in this embodiment, the rim pump rotor 11 includes a rotor gland 112, a permanent magnet 113, a rotor core 114, and a pump vane 115. The rotor sealing sleeve 112, the permanent magnet 113, the rotor iron core 114 and the pump vane 115 are sequentially installed in the circumferential direction, the bearing friction pair 111 is installed on two sides, and a magnetic field generated by the rim pump stator 10 drives the pump vane 115 to rotate by driving the permanent magnet 113, so that liquid in a pipeline is driven to move.

Referring to fig. 6, in this embodiment, the guide vane assembly 2 comprises a connecting flange 20 and a guide vane 21.

Referring to fig. 7, in this embodiment, the pump blade 115 includes an incident flow side 1151 and an outgoing flow side 1152, a line 1153 is formed by connecting the incident flow side 1151 and the outgoing flow side 1152, and a perpendicular line 1154 is formed by a midpoint of the line 1153. The pumping vanes 115 are each substantially symmetrical in profile shape about a chord line 1153 and about a midperpendicular 1154.

It is to be understood that the above-described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. An axial-flow rim pump, its characterized in that: the guide vane pump comprises an integrated rim pump (1) and guide vane assemblies (2) symmetrically arranged on the left side and the right side of the integrated rim pump (1), wherein the guide vane assemblies (2) are connected with external pipelines (4) through flexible connecting pipes (3); the integrated rim pump (1) comprises a rim pump rotor (11) and a rim pump stator (10) for driving the rim pump rotor (11) at the outer side, the rim pump rotor (11) comprises pump blades (115), a rotor iron core (114), a permanent magnet (113) and a rotor sealing sleeve (112) which are sequentially installed in the radial direction, bearing friction pairs (111) are installed at two sides, a magnetic field generated by the rim pump stator (10) drives the pump blades (115) to rotate through the driving permanent magnet (113) so as to drive liquid in a pipeline to move, the pump blades (115) are provided with an incident flow edge (1151) and a flow removal edge (1152), a connecting line between the incident flow edge (1151) and the flow removal edge (1152) is a chord line (1153), a perpendicular line of a midpoint of the chord line (1153) is a perpendicular line (1154), each wing section of each pump blade (115) is symmetrical along the chord line (1153) and the perpendicular line (1154), and the rim pump rotor (10) and the rim pump rotor (11) are supported and matched through a water lubrication thrust bearing (106), a water support pair (111); the rim pump stator (10) comprises a rim motor connecting side end cover (101) and a rim motor non-connecting side end cover (104) which are axially arranged, and a stator sealing sleeve (105), a rim motor stator iron pivot (103) and a rim motor shell (102) which are radially arranged, wherein the rim motor connecting side end cover (101) and the rim motor non-connecting side end cover (104) are respectively connected with a water lubrication thrust bearing (106) and a water lubrication supporting bearing (107), the rim motor shell (102), the rim motor stator iron pivot (103) and the stator sealing sleeve (105) form a sealing area, and a rotating magnetic field generated by the rim motor stator iron pivot (103) drives the rim pump rotor (11) to rotate; the guide vane assembly (2) comprises a connecting flange (20) and a guide vane (21).