WO2022116597A1 - Axial double-suction submersible electric pump - Google Patents

Axial double-suction submersible electric pump Download PDF

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Publication number
WO2022116597A1
WO2022116597A1 PCT/CN2021/112949 CN2021112949W WO2022116597A1 WO 2022116597 A1 WO2022116597 A1 WO 2022116597A1 CN 2021112949 W CN2021112949 W CN 2021112949W WO 2022116597 A1 WO2022116597 A1 WO 2022116597A1
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Prior art keywords
pump body
water
pump
impeller
submersible electric
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PCT/CN2021/112949
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French (fr)
Chinese (zh)
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林发明
李平根
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大福泵业有限公司
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Publication of WO2022116597A1 publication Critical patent/WO2022116597A1/en

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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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • 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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment

Definitions

  • the invention belongs to the technical field of water pumps, and relates to a submersible electric pump, in particular to an axial double suction submersible electric pump.
  • Submersible electric pump refers to a kind of water pump in which both the impeller of the pump body and the motor driving the impeller are submerged in water.
  • the existing submersible electric pump adopts a single-suction submersible electric pump, and the single-suction submersible electric pump absorbs water on one side, resulting in the problems of small flow rate of the extracted water flow and low working efficiency.
  • the purpose of the present invention is to provide an axial double suction submersible electric pump with small volume and increased flow in view of the above problems in the prior art.
  • an axial double suction submersible electric pump comprising a pump body and a motor, the interior of the pump body is provided with a cavity, and it is characterized in that the pump body is provided with There is an impeller assembly, the pump body and the motor are fixedly connected by a flange plate assembly with a plurality of connecting columns, and the plurality of the connecting columns are circumferentially arranged at intervals, and the two adjacent connecting columns are located between the two adjacent connecting columns.
  • a first water inlet for the water supply to flow axially into the inside of the pump body is formed between the two, the bottom of the pump body is provided with a second water inlet for the water supply to flow axially into the inside of the pump body, and an outlet is opened at the side of the pump body. water outlet.
  • the impeller assembly is formed by superimposing the first impeller body and the second impeller body up and down, and the water enters the pump body through the first water inlet and contacts the first impeller body
  • the centrifugal force generated by the high-speed rotation of the first impeller body is discharged from the water outlet, and the water enters the pump body through the second water inlet and contacts the end face of the second impeller body, and the centrifugal force generated by the high-speed rotation of the second impeller body discharged from the water outlet.
  • a water inlet cover with a plurality of water passage holes is arranged on the flange plate assembly and located on the outer casing of the connecting column.
  • the water inlet cover is fixed and limited to the flange assembly by fixing bolts.
  • the axial double suction submersible electric pump has the advantages of increased flow rate and small volume, thereby improving the overall work efficiency.
  • FIG. 1 is a schematic view of the front structure of the axial double suction submersible electric pump.
  • FIG. 2 is a schematic cross-sectional structure diagram of the axial double suction submersible electric pump.
  • Fig. 3 is a three-dimensional schematic diagram of the axial double suction submersible electric pump.
  • the axial double suction submersible electric pump includes a pump body 1 and a motor 2.
  • the interior of the pump body 1 is provided with a cavity, and the pump body 1 is provided with an impeller assembly.
  • 1 and the motor 2 are fixedly connected by a flange plate assembly 4 with a plurality of connecting columns 3, the plurality of connecting columns 3 are arranged at intervals around the circumferential direction, and a water supply axial inflow is formed between the two adjacent connecting columns 3.
  • the bottom of the pump body 1 is provided with a second water inlet 6 for the water supply to flow axially into the inside of the pump body 1, and a water outlet 7 is opened at the side position of the pump body 1, and the impeller assembly is composed of The first impeller main body 8 and the second impeller main body 9 are superimposed on top of each other.
  • the water enters the pump body 1 through the first water inlet 5 and contacts the end face of the first impeller main body 8, and is generated by the high-speed rotation of the first impeller main body 8.
  • the centrifugal force is discharged from the water outlet 7, and the water enters the pump body 1 through the second water inlet 6 and contacts the end face of the second impeller main body 9.
  • the centrifugal force generated by the high-speed rotation of the second impeller main body 9 is discharged from the water outlet 7, and the flange A water inlet cover 10 with a plurality of water passage holes 12 is arranged on the disk assembly 4 and located outside the connecting column 3 .
  • the double-suction submersible pump is in contact with the corresponding end faces of the two impeller bodies by means of the upper and lower axial water inlets. With the high-speed rotation of the two impeller bodies, the water flows into the pump body 1 along the end faces of the impeller bodies. It is discharged from the water outlet 7, and the double suction submersible electric pump increases the flow of the influent water and improves the working efficiency.

Abstract

The axial double-suction submersible electric pump, comprising a pump body (1) and a motor (2). A cavity is formed in the pump body (1); an impeller assembly is provided in the cavity; the pump body (1) and the motor (2) are fixedly connected by means of a flange disc assembly (4) having a plurality of connecting columns (3); the plurality of connecting columns (3) are circumferentially arranged at intervals, and a first water inlet (5) allowing water to axially flow into the pump body (1) is formed between two adjacent connecting columns (3); a second water inlet (6) allowing water to axially flow into the pump body (1) is provided at the bottom of the pump body (1); a water outlet (7) is formed at a position on one side of the pump body (1); when the impeller assembly rotates, water is suctioned from the two water inlets (5, 6) on two sides of the pump body (1) in the axial direction, and water is discharged from the water outlet (7) at the middle part of the pump body (1). The axial double-suction submersible electric pump has the advantages of small volume, large flow amount, and high working efficiency.

Description

一种轴向双吸式潜水电泵Axial double suction submersible pump 技术领域technical field
本发明属于水泵技术领域，涉及一种潜水电泵，特别涉及一种轴向双吸式潜水电泵。The invention belongs to the technical field of water pumps, and relates to a submersible electric pump, in particular to an axial double suction submersible electric pump.
背景技术Background technique
潜水电泵是指泵体叶轮和驱动叶轮的电机都潜入水中工作的一种水泵。现有的潜水电泵采用的是单吸式潜水电泵，单吸式潜水电泵为单边吸水，导致所提取水流的流量小，工作效率低的问题。Submersible electric pump refers to a kind of water pump in which both the impeller of the pump body and the motor driving the impeller are submerged in water. The existing submersible electric pump adopts a single-suction submersible electric pump, and the single-suction submersible electric pump absorbs water on one side, resulting in the problems of small flow rate of the extracted water flow and low working efficiency.
发明内容SUMMARY OF THE INVENTION
本发明的目的是针对现有技术中存在的上述问题，提供了一种体积小且流量增大的轴向双吸式潜水电泵。The purpose of the present invention is to provide an axial double suction submersible electric pump with small volume and increased flow in view of the above problems in the prior art.
本发明的目的可通过下列技术方案来实现：一种轴向双吸式潜水电泵，包括泵体和电机，所述的泵体内部为空腔设置，其特征在于，所述的泵体内设有叶轮组件，所述的泵体与电机之间通过带有多条连接柱的法兰盘组件固定连接，多条所述连接柱呈周向环绕间隔设置，且两相邻所述连接柱之间形成有供水轴向流入于泵体内部的第一进水口，所述的泵体底部开设有供水轴向流入于泵体内部的第二进水口，在所述泵体侧面位置处开设有出水口。The purpose of the present invention can be achieved by the following technical solutions: an axial double suction submersible electric pump, comprising a pump body and a motor, the interior of the pump body is provided with a cavity, and it is characterized in that the pump body is provided with There is an impeller assembly, the pump body and the motor are fixedly connected by a flange plate assembly with a plurality of connecting columns, and the plurality of the connecting columns are circumferentially arranged at intervals, and the two adjacent connecting columns are located between the two adjacent connecting columns. A first water inlet for the water supply to flow axially into the inside of the pump body is formed between the two, the bottom of the pump body is provided with a second water inlet for the water supply to flow axially into the inside of the pump body, and an outlet is opened at the side of the pump body. water outlet.
在上述的一种轴向双吸式潜水电泵中，所述的叶轮组件由第一叶轮主体和第二叶轮主体上下叠加而成，水通过第一进水口进入泵体内并接触第一叶轮主体的端面，通过第一叶轮主体的高速旋转所产生的离心力从出水口排出，水通过第二进水口进入泵体内并接触第二叶轮主体的端面，通过第二叶轮主体的高速旋转所产生的离心力从出水口排出。In the above-mentioned axial double suction submersible electric pump, the impeller assembly is formed by superimposing the first impeller body and the second impeller body up and down, and the water enters the pump body through the first water inlet and contacts the first impeller body The centrifugal force generated by the high-speed rotation of the first impeller body is discharged from the water outlet, and the water enters the pump body through the second water inlet and contacts the end face of the second impeller body, and the centrifugal force generated by the high-speed rotation of the second impeller body discharged from the water outlet.
在上述的一种轴向双吸式潜水电泵中，所述的法兰盘组件上且位于连接柱外套设带有多个通水孔的进水罩。In the above-mentioned axial double suction submersible electric pump, a water inlet cover with a plurality of water passage holes is arranged on the flange plate assembly and located on the outer casing of the connecting column.
在上述的一种轴向双吸式潜水电泵中，所述的进水罩通过固定螺栓固定限位于法兰盘组件上。In the above-mentioned axial double suction submersible electric pump, the water inlet cover is fixed and limited to the flange assembly by fixing bolts.
与现有技术相比，本轴向双吸式潜水电泵具有流量增大且体积小的优点，提高整体的工作效率。Compared with the prior art, the axial double suction submersible electric pump has the advantages of increased flow rate and small volume, thereby improving the overall work efficiency.
附图说明Description of drawings
图1是本轴向双吸式潜水电泵中的主视结构示意图。FIG. 1 is a schematic view of the front structure of the axial double suction submersible electric pump.
图2是本轴向双吸式潜水电泵中的剖视结构示意图。FIG. 2 is a schematic cross-sectional structure diagram of the axial double suction submersible electric pump.
图3是本轴向双吸式潜水电泵中的立体结构示意图。Fig. 3 is a three-dimensional schematic diagram of the axial double suction submersible electric pump.
图中，1、泵体；2、电机；3、连接柱；4、法兰盘组件；5、第一进水口；6、第二进水口；7、出水口；8、第一叶轮主体；9、第二叶轮主体；10、进水罩；11、固定螺栓；12、通水孔。In the figure, 1, pump body; 2, motor; 3, connecting column; 4, flange assembly; 5, first water inlet; 6, second water inlet; 7, water outlet; 8, first impeller body; 9. Main body of the second impeller; 10. Water inlet cover; 11. Fixing bolts; 12. Water passage holes.
具体实施方式Detailed ways
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.
如图1、图2、图3所示，本轴向双吸式潜水电泵，包括泵体1和电机2，泵体1内部为空腔设置，泵体1内设有叶轮组件，泵体1与电机2之间通过带有多条连接柱3的法兰盘组件4固定连接，多条连接柱3呈周向环绕间隔设置，且两相邻连接柱3之间形成有供水轴向流入于泵体1内部的第一进水口5，泵体1底部开设有供水轴向流入于泵体1内部的第二进水口6，在泵体1侧面位置处开设有出水口7，叶轮组件由第一叶轮主体8和第二叶轮主体9上下叠加而成，水通过第一进水口5进入泵体1内并接触第一叶轮主体8的端面，通过第一叶轮主体8的高速旋转所产生的离心力从出水口7排出，水通过第二进水口6进入泵体1内并接触第二叶轮主体9的端面，通过第二叶轮主体9的高速旋转所产生的离心力从出水口7排出，法兰盘组件4上且位于连接柱3外套设带有多个通水孔12的进水罩10，进水罩10通过固定螺栓11固定限位于法兰盘组件4上。As shown in Figure 1, Figure 2 and Figure 3, the axial double suction submersible electric pump includes a pump body 1 and a motor 2. The interior of the pump body 1 is provided with a cavity, and the pump body 1 is provided with an impeller assembly. 1 and the motor 2 are fixedly connected by a flange plate assembly 4 with a plurality of connecting columns 3, the plurality of connecting columns 3 are arranged at intervals around the circumferential direction, and a water supply axial inflow is formed between the two adjacent connecting columns 3. In the first water inlet 5 inside the pump body 1, the bottom of the pump body 1 is provided with a second water inlet 6 for the water supply to flow axially into the inside of the pump body 1, and a water outlet 7 is opened at the side position of the pump body 1, and the impeller assembly is composed of The first impeller main body 8 and the second impeller main body 9 are superimposed on top of each other. The water enters the pump body 1 through the first water inlet 5 and contacts the end face of the first impeller main body 8, and is generated by the high-speed rotation of the first impeller main body 8. The centrifugal force is discharged from the water outlet 7, and the water enters the pump body 1 through the second water inlet 6 and contacts the end face of the second impeller main body 9. The centrifugal force generated by the high-speed rotation of the second impeller main body 9 is discharged from the water outlet 7, and the flange A water inlet cover 10 with a plurality of water passage holes 12 is arranged on the disk assembly 4 and located outside the connecting column 3 .
本双吸式潜水电泵通过上、下轴向进水的方式，与两叶轮主体的相对应端面接触，随着两叶轮主体的高速旋转，水沿叶轮主体的端面顺势进入泵体1内部并从出水口7排出，双吸式的潜水电泵使进水流量增大，提高工作效率。The double-suction submersible pump is in contact with the corresponding end faces of the two impeller bodies by means of the upper and lower axial water inlets. With the high-speed rotation of the two impeller bodies, the water flows into the pump body 1 along the end faces of the impeller bodies. It is discharged from the water outlet 7, and the double suction submersible electric pump increases the flow of the influent water and improves the working efficiency.
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (4)

  1. 一种轴向双吸式潜水电泵，包括泵体(1)和电机(2)，所述的泵体(1)内部为空腔设置，其特征在于，所述的泵体(1)内设有叶轮组件，所述的泵体(1)与电机(2)之间通过带有多条连接柱(3)的法兰盘组件(4)固定连接，多条所述连接柱(3)呈周向环绕间隔设置，且两相邻所述连接柱(3)之间形成有供水轴向流入于泵体(1)内部的第一进水口(5)，所述的泵体(1)底部开设有供水轴向流入于泵体(1)内部的第二进水口(6)，在所述泵体(1)侧面位置处开设有出水口(7)。An axial double-suction submersible electric pump, comprising a pump body (1) and a motor (2), wherein the inside of the pump body (1) is provided with a cavity, and it is characterized in that, the inside of the pump body (1) An impeller assembly is provided, and the pump body (1) and the motor (2) are fixedly connected by a flange assembly (4) with a plurality of connecting columns (3), and a plurality of the connecting columns (3) A first water inlet (5) is formed between the two adjacent connecting columns (3), and the water supply axially flows into the inside of the pump body (1). The pump body (1) The bottom is provided with a second water inlet (6) for water supply to flow axially into the interior of the pump body (1), and a water outlet (7) is provided at the side of the pump body (1).
  2. 根据权利要求1所述的一种轴向双吸式潜水电泵，其特征在于，所述的叶轮组件由第一叶轮主体(8)和第二叶轮主体(9)上下叠加而成，水通过第一进水口(5)进入泵体(1)内并接触第一叶轮主体(8)的端面，通过第一叶轮主体(8)的高速旋转所产生的离心力从出水口(7)排出，水通过第二进水口(6)进入泵体(1)内并接触第二叶轮主体(9)的端面，通过第二叶轮主体(9)的高速旋转所产生的离心力从出水口(7)排出。An axial double-suction submersible electric pump according to claim 1, characterized in that the impeller assembly is formed by superimposing a first impeller main body (8) and a second impeller main body (9) up and down, and the water passes through The first water inlet (5) enters the pump body (1) and contacts the end face of the first impeller main body (8), and is discharged from the water outlet (7) by the centrifugal force generated by the high-speed rotation of the first impeller main body (8). It enters the pump body (1) through the second water inlet (6) and contacts the end face of the second impeller body (9), and is discharged from the water outlet (7) by centrifugal force generated by the high-speed rotation of the second impeller body (9).
  3. 根据权利要求1所述的一种轴向双吸式潜水电泵，其特征在于，所述的法兰盘组件(4)上且位于连接柱(3)外套设带有多个通水孔(12)的进水罩(10)。An axial double-suction submersible electric pump according to claim 1, characterized in that, the flange assembly (4) is provided with a plurality of water through holes ( 12) of the water inlet cover (10).
  4. 根据权利要求3所述的一种轴向双吸式潜水电泵，其特征在于，所述的进水罩(10)通过固定螺栓(11)固定限位于法兰盘组件(4)上。The axial double suction submersible electric pump according to claim 3, characterized in that the water inlet cover (10) is fixed and limited to the flange assembly (4) by fixing bolts (11).
PCT/CN2021/112949 2020-12-03 2021-08-17 Axial double-suction submersible electric pump WO2022116597A1 (en)

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CN202011395322.2A CN112431771A (en) 2020-12-03 2020-12-03 Axial double-suction submersible electric pump

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Publication number Priority date Publication date Assignee Title
CN112431771A (en) * 2020-12-03 2021-03-02 大福泵业有限公司 Axial double-suction submersible electric pump

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KR100925157B1 (en) * 2009-06-26 2009-11-05 (주)대진정공 Water pump
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KR101405433B1 (en) * 2014-01-24 2014-06-11 (주)지천펌프공업 Double Suction Water Pump
CN110486292A (en) * 2019-08-07 2019-11-22 林军永 A kind of double-suction type immersible pump
CN112431771A (en) * 2020-12-03 2021-03-02 大福泵业有限公司 Axial double-suction submersible electric pump
CN213744034U (en) * 2020-12-03 2021-07-20 大福泵业有限公司 Axial double-suction submersible electric pump

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