WO2020125086A1 - 一种磁悬浮鼓风机中转子的冷却风出风的结构 - Google Patents

一种磁悬浮鼓风机中转子的冷却风出风的结构 Download PDF

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Publication number
WO2020125086A1
WO2020125086A1 PCT/CN2019/105503 CN2019105503W WO2020125086A1 WO 2020125086 A1 WO2020125086 A1 WO 2020125086A1 CN 2019105503 W CN2019105503 W CN 2019105503W WO 2020125086 A1 WO2020125086 A1 WO 2020125086A1
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WO
WIPO (PCT)
Prior art keywords
impeller
fairing
rotor
cooling
air
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Application number
PCT/CN2019/105503
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English (en)
French (fr)
Inventor
张强
吴立华
董继勇
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南京磁谷科技有限公司
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Publication date
Application filed by 南京磁谷科技有限公司 filed Critical 南京磁谷科技有限公司
Publication of WO2020125086A1 publication Critical patent/WO2020125086A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

Definitions

  • the invention relates to a cooling air outlet structure of a rotor in a magnetic suspension blower.
  • the inside of the impeller is hollowed out, and the impeller communicates with the inner hole of the rotor.
  • the rotor cooling air enters the interior of the impeller through the inner hole of the rotor. After the inner part of the impeller is hollowed out, it communicates with the inner hole of the rotor.
  • the wind phase impacts, which affects the flow efficiency.
  • the dust at the upper end of the air intake will easily enter the impeller and rotor, and lack a dustproof structure.
  • the present invention is to provide a cooling air outlet structure of a rotor in a magnetic suspension blower in order to solve the above-mentioned problems in the prior art.
  • the technical scheme adopted by the present invention is as follows: a structure of a cooling air outlet of a rotor in a magnetic levitation blower, including a rotor, an impeller, an air intake passage and a fairing, the rotor is fixedly connected with the impeller, and the impeller is placed in the air intake passage; A rotating gap is formed between the impeller and the air inlet, and the fairing is fixed on the upper end surface of the impeller; the rotor has a cooling through hole in the axial direction, and the impeller has a cooling cavity in the axial direction, the heat dissipation The cavity is communicated with the cooling through hole, and a plurality of ventilation holes are provided on the circumferential wall of the fairing, and the ventilation holes communicate with the heat dissipation cavity.
  • a platform portion is provided on the outer wall of the fairing, and a threaded hole is provided on the platform portion, the threaded hole is provided along the axial direction of the fairing.
  • the fairing is made of non-metallic materials.
  • the present invention has the following beneficial effects: the fairing in the present invention facilitates the cooling air cooling of the impeller, and at the same time prevents the dust at the upper end of the air intake channel from falling into the impeller; the side of the fairing has a circle of ventilation holes for the fairing outflow cooling The wind can directly flow into the fluid component as a working medium; at the same time, because it flows out from the side, it will not collide with the air flowing into the upper end of the intake channel, affecting the flow rate and efficiency.
  • Figure 1 is a structural diagram of the present invention.
  • Fig. 2 is a structural diagram of a fairing in the present invention.
  • the structure of the cooling air outlet of the rotor of the magnetic suspension blower of the present invention includes a rotor 1, an impeller 2, an air inlet 3, and a fairing 4.
  • the rotor 1 is fixedly connected to the impeller 2, and the impeller 2 is placed Inside the intake passage 3, a rotation gap 10 is formed between the impeller 2 and the intake passage 3, and the fairing 4 is fixed to the upper end surface of the impeller 2.
  • the rotor 1 is provided with a cooling through hole 11 in the axial center direction
  • the impeller 2 is provided with a heat dissipating cavity 21 in the axial center direction.
  • the heat dissipating cavity 21 communicates with the cooling through hole 11, and a number of ventilations are provided on the circumferential wall of the fairing 4
  • the hole 41 and the vent hole 41 penetrate the heat dissipation cavity 21.
  • a platform portion 42 is provided on the outer wall of the fairing 4, and a threaded hole is provided on the platform portion 42, the threaded hole is provided along the axial direction of the fairing 4, and a threaded hole is provided on the impeller 2 on the platform portion 42
  • the screw connection screw fixes the fairing 4 to the impeller 2.
  • the fairing 4 is made of non-metallic materials and non-metallic materials, which satisfies the strength of use and reduces the quality of the upper end of the rotor.
  • the cooling air flows upward from the cooling through holes 11 of the rotor into the heat dissipation cavity 21 of the impeller, and flows into the air intake passage through the ventilation holes 41 of the fairing.
  • the fairing 4 is convenient for the cooling air of the impeller to cool out, and at the same time prevents the dust at the upper end of the air inlet from falling into the impeller.
  • the side of the fairing 4 has a circle of ventilation holes 41 for the fairing to flow out of the cooling air and can directly flow into the working medium Fluid parts; at the same time, because it flows out from the side, it will not collide with the air flowing into the upper end of the intake port, affecting the flow rate and efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种磁悬浮鼓风机中转子的冷却风出风的结构，包括转子（1）、叶轮（2）、进气道（3）和整流罩（4），转子（1）与叶轮（2）固定连接，叶轮（2）置于进气道（3）内，且叶轮（2）与进气道（3）之间形成有转动间隙（10），整流罩（4）固定于叶轮（2）的上端面上；转子（1）的轴心方向设有冷却通孔（11），叶轮（2）的轴心方向上设有散热腔（21），散热腔（21）与冷却通孔（11）相连通，在整流罩（4）的圆周壁上设有若干通风孔（41），通风孔（41）与散热腔（21）相贯通。整流罩便于叶轮冷却的冷却风出风，同时防止进气道上端的灰尘落入叶轮内部，整流罩侧面一圈开通风孔，用于整流罩流出冷却风，可直接作为工作介质流入流体部件；同时因为从侧面流出，不会与进气道上端流入的空气发生碰撞，避免影响流量和效率。

Description

一种磁悬浮鼓风机中转子的冷却风出风的结构 技术领域：
本发明涉及一种磁悬浮鼓风机中转子的冷却风出风的结构。
背景技术：
叶轮内部被挖空，叶轮与转子内孔相连通，转子冷却风通过转子内孔进入叶轮内部，叶轮内部被挖空后，与转子内孔相连通，冷却风的出风方向会与进气道风相撞击，影响流量效率，进气道上端的灰尘会比较容易进入叶轮及转子内部，缺少防尘结构。
发明内容：
本发明是为了解决上述现有技术存在的问题而提供一种磁悬浮鼓风机中转子的冷却风出风的结构。
本发明所采用的技术方案有：一种磁悬浮鼓风机中转子的冷却风出风的结构，包括转子、叶轮、进气道和整流罩，所述转子与叶轮固定连接，叶轮置于进气道内，且叶轮与进气道之间形成有转动间隙，整流罩固定于叶轮的上端面上；所述转子的轴心方向设有冷却通孔，叶轮的轴心方向上设有散热腔，所述散热腔与冷却通孔相连通，在整流罩的圆周壁上设有若干通风孔，通风孔与散热腔相贯通。
进一步地，所述整流罩的外壁上设有平台部，在平台部上设有螺纹孔，螺纹孔沿着整流罩的轴向方向设置。
进一步地，所述整流罩采用非金属材料制成。
本发明具有如下有益效果：本发明中的整流罩便于叶轮冷却的冷却风出风，同时防止进气道上端的灰尘落入叶轮内部，整流罩侧面一圈开通风孔，用于整流罩流出冷却风，可直接作为工作介质流入流体部件；同时因为从侧面流出，不会与进气道上端流入的空气发生碰撞，影响流量和效率。
附图说明：
图1为本发明结构图。
图2为本发明中整流罩的结构图。
具体实施方式：
下面结合附图对本发明作进一步的说明。
如图1和图2，本发明一种磁悬浮鼓风机中转子的冷却风出风的结构，包括转子1、叶轮2、进气道3和整流罩4，转子1与叶轮2固定连接，叶轮2置于进气道3内，且叶轮2与进气道3之间形成有转动间隙10，整流罩4固定于叶轮2的上端面上。转子1的轴心方向设有冷却通孔11，在叶轮2的轴心方向上设有散热腔21，散热腔21与冷却通孔11相连通，在整流罩4的圆周壁上设有若干通风孔41，通风孔41与散热腔21相贯通。
在整流罩4的外壁上设有平台部42，在平台部42上设有螺纹孔，螺纹孔沿着整流罩4的轴向方向设置，在叶轮2上设有螺纹孔，在平台部42上螺纹连接螺钉，将整流罩4固定于叶轮2上。
整流罩4采用非金属材料制成，采用非金属材料，满足使用强度的同时，减轻了转子上端的质量。
冷却风从转子的冷却通孔11向上流入叶轮的散热腔21，经整流罩的通风孔41流入进气道内。
整流罩4便于叶轮冷却的冷却风出风，同时防止进气道上端的灰尘落入叶轮内部，整流罩4侧面一圈开通风孔41，用于整流罩流出冷却风，可直接作为工作介质流入流体部件；同时因为从侧面流出，不会与进气道上端流入的空气发生碰撞，影响流量和效率。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的保护范围。

Claims (3)

  1. 一种磁悬浮鼓风机中转子的冷却风出风的结构，其特征在于：包括转子(1)、叶轮(2)、进气道(3)和整流罩(4)，所述转子(1)与叶轮(2)固定连接，叶轮(2)置于进气道(3)内，且叶轮(2)与进气道(3)之间形成有转动间隙(10)，整流罩(4)固定于叶轮(2)的上端面上；所述转子(1)的轴心方向设有冷却通孔(11)，叶轮(2)的轴心方向上设有散热腔(21)，所述散热腔(21)与冷却通孔(11)相连通，在整流罩(4)的圆周壁上设有若干通风孔(41)，通风孔(41)与散热腔(21)相贯通。
  2. 如权利要求1所述的磁悬浮鼓风机中转子的冷却风出风的结构，其特征在于：所述整流罩(4)的外壁上设有平台部(42)，在平台部(42)上设有螺纹孔，螺纹孔沿着整流罩(4)的轴向方向设置。
  3. 如权利要求1所述的磁悬浮鼓风机中转子的冷却风出风的结构，其特征在于：所述整流罩(4)采用非金属材料制成。
PCT/CN2019/105503 2018-12-18 2019-09-12 一种磁悬浮鼓风机中转子的冷却风出风的结构 WO2020125086A1 (zh)

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CN109488640B (zh) * 2018-12-18 2023-12-26 南京磁谷科技股份有限公司 一种磁悬浮鼓风机中转子的冷却风出风的结构

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