CN112682315A - Bidirectional axial flow pump - Google Patents
Bidirectional axial flow pump Download PDFInfo
- Publication number
- CN112682315A CN112682315A CN202011497951.6A CN202011497951A CN112682315A CN 112682315 A CN112682315 A CN 112682315A CN 202011497951 A CN202011497951 A CN 202011497951A CN 112682315 A CN112682315 A CN 112682315A
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- Prior art keywords
- rim
- pump
- stator
- rotor
- flow
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- Pending
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005461 lubrication Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The invention discloses a bidirectional axial-flow pump, which comprises two integrated rim pumps connected in series and a flexible connecting pipe connected with the integrated rim pumps through a guide vane assembly, wherein the flexible connecting pipe is connected with an external pipeline; 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 in supporting fit through a water lubrication thrust bearing, a water lubrication support bearing and a bearing friction pair; 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 pump vanes form a bidirectional symmetrical pump vane structure after the two integrated rim pumps are connected in series, thereby realizing bidirectional equivalent transportation of liquid media.
Description
Technical Field
The invention relates to the field of fluid transportation machinery, in particular to a bidirectional 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.
In the application is correlated to the present case, an axial-flow pump can satisfy the two-way problem of flowing, but some occasions have higher requirement to the lift of pump, and single-stage axial-flow pump can not satisfy the demand of large-traffic high-lift.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a bidirectional axial flow pump which adopts a multi-stage rim pump mode to solve the problems.
The technical scheme adopted by the invention for solving the technical problems is as follows: a bidirectional axial flow pump comprises two integrated rim pumps which are mutually connected in series and a flexible connecting pipe which is connected with the integrated rim pumps through a guide vane assembly, wherein an external pipeline is connected to the flexible connecting pipe; 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 in supporting fit through a water lubrication thrust bearing, a water lubrication support bearing and a bearing friction pair; the guide vane assembly comprises a connecting flange and a guide vane.
The flange motor connecting side end cover and the flange motor non-connecting side end cover are respectively connected with a water lubrication thrust bearing and a water lubrication supporting bearing, the flange motor casing, the flange motor stator iron pivot and the stator sealing sleeve form a sealing area, and a rotating magnetic field generated by the flange motor stator iron pivot drives a flange pump rotor to rotate.
The two-way axial-flow pump is characterized in that a rim pump rotor comprises pump blades, a rotor iron core, permanent magnets and a rotor sealing sleeve which are sequentially arranged in the radial direction, bearing friction pairs are arranged 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 as to drive liquid in a pipeline to move.
The two groups of pump blades of the bidirectional axial flow pump are divided into a front RR pump blade and a rear RR pump blade which are completely consistent according to an incoming flow direction, the two pump blades are provided with 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 all airfoil sections of the pump blades are symmetrical along the chord line and 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, after the two integrated rim pumps are connected in series, the pump vanes form a bidirectional symmetrical pump vane structure, the equal output lift flow at two sides can be ensured, the designed incoming flow direction of the rear end vanes can be matched with the outgoing flow direction of the front end vanes, energy recovery is realized, the guide vane assembly can stably and pre-swirl incoming flow, the system efficiency is improved, and the flexible connecting pipe can realize flexible installation of the 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 a schematic view of a bi-directional blade of the present invention;
FIG. 8 is an airfoil schematic view of a pump blade according to the present invention.
The figures are numbered: 1000-bidirectional axial-flow pump, 1-integrated rim pump, 2-guide vane assembly, 3-flexible connection pipe, 4-external pipeline, 10-rim pump stator, 11-rim pump rotor, 20-connecting flange, 21-guide vane, 101-rim motor connecting side end cover, 102-rim motor casing, 103-rim motor stator iron pivot, 104-rim motor non-connecting side end cover, 105-stator sealing sleeve, 106-water lubricating thrust bearing, 107-water lubricating support bearing, 111-bearing friction pair, 112-rotor sealing sleeve, 113-permanent magnet, 114-rotor iron core, 115-pump vane, 1151-front FR pump vane, 1152-rear RR pump vane, 11511-incident flow side, 11512-outgoing flow side, 11513-chord, 11514-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 2, the bidirectional axial flow pump 1000 disclosed by the present invention is installed in series by two integrated rim pumps 1, and the guide vane assemblies 2 are connected to the outside and then connected to the external pipeline 4 through the flexible connecting pipe 3.
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 pump blades 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. After the two integrated rim pumps 1 are connected in series, the two pump blades 115 adopt a bidirectional contra-rotating pump blade design, and the inflow direction of the rear-end blade design can be matched with the outflow direction of the front-end blade, so that energy recovery is realized. Because the pump blade 115 adopts a two-stage symmetrical design, the equal delivery head flow at two sides can be ensured.
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, two integrated rim pumps 1 are installed in series, and the forward FR pump blade 1151 and the backward RR pump blade 1152 can be separated from the flow direction pump blade 115, and the inlet and outlet speeds of the forward FR pump blade 1151 and the backward RR pump blade 1152 are triangular, wherein:
(1) peripheral speed: vu1F = Vu2F = Vu2R = Vu1R = VuF.
(2) Axial plane velocity: vm1F = Vm2F = VmF = VmR = Vm1R = Vm 2R.
(3) Absolute speed: VFR2= VRR 1.
(4) Circumferential component of absolute velocity: vau1F = 0.
The coupling condition of the speed triangles of the inlet and the outlet of the front impeller and the rear impeller, namely the outlet speed moment of the front impeller is the inlet speed moment of the rear impeller: K2F = Vu2FrF = Vu1RrR = K1R.
Therefore, the energy of the front impeller is recovered by the rear impeller, and the overall efficiency of the system is improved.
Referring to fig. 8, in this embodiment, the front FR pump blade 1151 and the rear RR pump blade 1152 are identical, and the front FR pump blade 1151 (or the rear RR pump blade 1152) includes an incident flow side 11511 and a removed flow side 11512, a line connecting the incident flow side 11511 and the removed flow side 11512 is a chord line 11513, and a perpendicular line at a midpoint of the chord line 11513 is a perpendicular bisector 11514. The airfoil shape of the pumping vane 115 is substantially symmetrical about chord line 11513 and about mid-perpendicular line 11514.
It is to be understood that the above-described embodiments are only a few, and not all, embodiments of the present invention. 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 (4)
1. A bidirectional axial-flow pump, characterized in that: the device comprises two integrated rim pumps (1) which are connected in series and a flexible connecting pipe (3) which is connected with the integrated rim pumps (1) through a guide vane assembly (2), wherein an external pipeline (4) is connected onto the flexible connecting pipe (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, wherein the rim pump stator (10) and the rim pump rotor (11) are in supporting fit through a water lubrication thrust bearing (106), a water lubrication support bearing (107) and a bearing friction pair (111); the guide vane assembly (2) comprises a connecting flange (20) and a guide vane (21).
2. A bi-directional axial flow pump according to claim 1, wherein the rim pump stator (10) comprises an axially arranged rim motor connecting side end cover (101) and a rim motor non-connecting side end cover (104) and a radially arranged stator sealing sleeve (105), a rim motor stator iron hub (103) and a rim motor casing (102), the rim motor connecting side end cover (101) and the rim motor non-connecting side end cover (104) are respectively connected with the water lubrication thrust bearing (106) and the water lubrication support bearing (107), the rim motor casing (102) forms a sealing area with the rim motor stator iron hub (103) and the stator sealing sleeve (105), and a rotating magnetic field is generated by the rim motor stator iron hub (103) to drive the rim pump rotor (11) to rotate.
3. The bidirectional axial flow pump of claim 1, wherein the rim pump rotor (11) comprises a pump vane (115), a rotor core (114), a permanent magnet (113) and a rotor gland (112) which are sequentially installed in a radial 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 as to drive liquid in the pipeline to move.
4. A bidirectional axial flow pump according to claim 3, wherein said two sets of pump blades (115) are divided into front FR (1151) and rear RR (1152) blades which are identical in the incoming flow direction, each having an incident flow side (11511) and a removed flow side (11512), the incident flow side (11511) and the removed flow side (11512) are connected by a chord line (11513), the perpendicular to the midpoint of the chord line (11513) is a perpendicular bisector (11514), and the airfoil sections of the pump blades (115) are symmetrical along the chord line (11513) and the perpendicular to the midpoint (11514).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497951.6A CN112682315A (en) | 2020-12-17 | 2020-12-17 | Bidirectional axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497951.6A CN112682315A (en) | 2020-12-17 | 2020-12-17 | Bidirectional axial flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112682315A true CN112682315A (en) | 2021-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011497951.6A Pending CN112682315A (en) | 2020-12-17 | 2020-12-17 | Bidirectional axial flow pump |
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| Country | Link |
|---|---|
| CN (1) | CN112682315A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183375A (en) * | 2021-11-24 | 2022-03-15 | 江苏大学 | No pivot formula axial-flow pump |
| CN116608131A (en) * | 2023-05-15 | 2023-08-18 | 包耀红 | Marine bidirectional transverse inclination adjusting pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061836A (en) * | 1990-10-04 | 1992-06-10 | 英格索尔-兰德公司 | Incorporate centrifugal pump and motor |
| US6190141B1 (en) * | 1997-05-21 | 2001-02-20 | Baker Hughes Incorporated | Centrifugal pump with diluent injection ports |
| CN104989667A (en) * | 2015-07-02 | 2015-10-21 | 江苏德华泵业有限公司 | Reversible axial flow pump |
| CN107246395A (en) * | 2017-06-28 | 2017-10-13 | 武汉理工大学 | A kind of shaftless edge wheel water jet pump of electromagnetism peculiar to vessel |
| CN108678959A (en) * | 2018-04-16 | 2018-10-19 | 江苏大学镇江流体工程装备技术研究院 | A kind of shaft-driven three-level of list pumps axial flow rotary |
| CN108678960A (en) * | 2018-05-17 | 2018-10-19 | 江苏大学 | It is a kind of that efficiently axial flow rotary is pumped |
| CN108730199A (en) * | 2018-04-16 | 2018-11-02 | 江苏大学镇江流体工程装备技术研究院 | A kind of single motor driving pumps axial flow rotary |
| CN109469511A (en) * | 2018-12-19 | 2019-03-15 | 江苏大学 | A kind of axial-flow type counter rotating birotor multi-state turbine |
| CN110486217A (en) * | 2019-07-19 | 2019-11-22 | 江苏大学 | A kind of convection rotary type Double-way axial flow pump turbine |
-
2020
- 2020-12-17 CN CN202011497951.6A patent/CN112682315A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061836A (en) * | 1990-10-04 | 1992-06-10 | 英格索尔-兰德公司 | Incorporate centrifugal pump and motor |
| US6190141B1 (en) * | 1997-05-21 | 2001-02-20 | Baker Hughes Incorporated | Centrifugal pump with diluent injection ports |
| CN104989667A (en) * | 2015-07-02 | 2015-10-21 | 江苏德华泵业有限公司 | Reversible axial flow pump |
| CN107246395A (en) * | 2017-06-28 | 2017-10-13 | 武汉理工大学 | A kind of shaftless edge wheel water jet pump of electromagnetism peculiar to vessel |
| CN108678959A (en) * | 2018-04-16 | 2018-10-19 | 江苏大学镇江流体工程装备技术研究院 | A kind of shaft-driven three-level of list pumps axial flow rotary |
| CN108730199A (en) * | 2018-04-16 | 2018-11-02 | 江苏大学镇江流体工程装备技术研究院 | A kind of single motor driving pumps axial flow rotary |
| CN108678960A (en) * | 2018-05-17 | 2018-10-19 | 江苏大学 | It is a kind of that efficiently axial flow rotary is pumped |
| CN109469511A (en) * | 2018-12-19 | 2019-03-15 | 江苏大学 | A kind of axial-flow type counter rotating birotor multi-state turbine |
| CN110486217A (en) * | 2019-07-19 | 2019-11-22 | 江苏大学 | A kind of convection rotary type Double-way axial flow pump turbine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183375A (en) * | 2021-11-24 | 2022-03-15 | 江苏大学 | No pivot formula axial-flow pump |
| CN116608131A (en) * | 2023-05-15 | 2023-08-18 | 包耀红 | Marine bidirectional transverse inclination adjusting pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20210420 |