WO2021109513A1 - 一种免二次注水的多用途转移泵 - Google Patents

一种免二次注水的多用途转移泵 Download PDF

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Publication number
WO2021109513A1
WO2021109513A1 PCT/CN2020/094811 CN2020094811W WO2021109513A1 WO 2021109513 A1 WO2021109513 A1 WO 2021109513A1 CN 2020094811 W CN2020094811 W CN 2020094811W WO 2021109513 A1 WO2021109513 A1 WO 2021109513A1
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Prior art keywords
pump body
impeller
water injection
pump
flange
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PCT/CN2020/094811
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English (en)
French (fr)
Inventor
王晛
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苏州优德通力科技有限公司
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Priority to US17/253,611 priority Critical patent/US11499567B2/en
Publication of WO2021109513A1 publication Critical patent/WO2021109513A1/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
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid 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
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • 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
    • 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
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid 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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/02—Self-priming pumps

Definitions

  • the utility model relates to the field of water pumps, in particular to a multi-purpose transfer pump without secondary water injection.
  • a general multi-purpose transfer pump usually uses a rubber impeller.
  • the cavity of the pump body is a cam-like structure. After the pump body is filled with water and lubricated, the rubber impeller rotates in the cavity, and its flexible impeller blades will bend and deform. In the process of deformation, the volume will change, so the water can be sucked and squeezed out effectively and quickly to realize the self-priming process of the self-priming pump.
  • the impeller Because the rubber impeller has a bending service life, the impeller will break if the service life is exceeded, causing the pump to not work.
  • the pump needs to add water to lubricate the impeller every time the pump works, otherwise the impeller will easily overheat and cause damage.
  • the impeller needs to be replaced. It is troublesome to use and needs improvement. .
  • the main technical problem solved by the utility model is to provide a multi-purpose transfer pump without secondary water injection, avoid the problem of secondary water injection, and improve the service life of the impeller.
  • a technical solution adopted by the present utility model is to provide a multi-purpose transfer pump without secondary water injection, including: cover plate, water injection plug, pump body, impeller, pump body flange and motor.
  • the pump body flange is arranged at the end of the motor, the pump body is arranged on the front of the pump body flange, the back of the pump body is recessed with a vortex chamber corresponding to the impeller, and the impeller is arranged in the vortex chamber and fixed concentrically
  • the top of the vortex chamber is provided with a tongue part tangent to the impeller, and the front of the pump body is recessed with a liquid storage chamber that wraps the vortex chamber and a gas-liquid separation chamber above the liquid storage chamber,
  • Both sides of the top of the pump body are provided with a water inlet pipe joint and a water outlet pipe joint extending obliquely upward and outward, and two partitions are arranged in the gas-liquid separation chamber to form a water suction
  • the water inlet pipe joint and the water outlet pipe joint are distributed at a V-shaped included angle.
  • a bearing mounting groove is arranged in the front flange of the motor, and a front bearing sleeved on the rotating shaft of the motor is arranged in the bearing mounting groove, and the front bearing is arranged behind Limit pressure ring.
  • the limiting pressure ring is connected and fixed with the front flange of the motor by a first screw.
  • the impeller is provided with a set screw pointing to the surface of the rotating shaft of the motor, and the impeller adopts a toothed structure impeller.
  • a sealing gasket is arranged between the cover plate and the pump body.
  • an O-ring is arranged between the pump body flange and the pump body.
  • the cover plate is fixed on the pump body by means of second screws or hot melt welding.
  • the pump body is provided with a third screw connected with the pump body flange, and the pump body is also provided with a front flange that penetrates the pump body flange and is connected to the motor.
  • the fourth screw connected.
  • a handle is provided on the flange of the pump body.
  • the utility model points out a multi-purpose transfer pump without secondary water injection.
  • the suction chamber and the water inlet pipe joint extending obliquely upward are specially designed, and the water in the pump body flows back into the suction after the motor is turned off.
  • the water suction cavity and the water inlet pipe joint are inclined upward, the suction cavity and the water inlet Part of the water in the water pipe joint flows downwards into the vortex chamber due to gravity, submerging the impeller.
  • the pump body does not need to be filled with water, and the self-priming effect can be achieved, which greatly improves the convenience of operation.
  • the impeller has good lubrication effect. long life.
  • Figure 1 is a schematic structural view of a preferred embodiment of a multi-purpose transfer pump without secondary water injection according to the present invention
  • Figure 2 is an exploded view of Figure 1;
  • Fig. 3 is a cross-sectional view of the pump body flange in Fig. 2.
  • the embodiments of the present invention include:
  • the multi-purpose transfer pump free of secondary water injection as shown in Figure 1 and Figure 2 includes: a cover plate 4, a water injection plug 6, a pump body 7, an impeller 9, a pump body flange 11 and a motor 13.
  • the pump body method The flange 11 is arranged at the end of the motor 13, the pump body 7 is arranged on the front of the pump body flange 11, and the pump body 7 is provided with a third screw 1 connected with the pump body flange 11, which has a firm structure.
  • An O-ring 10 is arranged between the pump body flange 11 and the pump body 7 to ensure the tightness of the connection.
  • the pump body 7 is also provided with a fourth screw 2 that penetrates the pump body flange 11 and is connected to the front flange of the motor 13, which realizes the fixing of the pump body flange 11 at the end of the motor 13 and facilitates disassembly and assembly.
  • the pump body flange 11 is provided with a handle 12, which has good portability.
  • a vortex chamber 7d corresponding to the impeller 9 is recessed on the back of the pump body 7.
  • the impeller 9 is arranged in the vortex chamber 7d and fixed concentrically on the rotating shaft of the motor 13, and the impeller 9 is provided with a direction pointing to the motor 13
  • the set screw 8 on the surface of the rotating shaft realizes the axial adjustment and fixation of the impeller 9.
  • the impeller 9 is provided with a threaded hole corresponding to the set screw 8, which is convenient to install, and the end section of the rotating shaft of the motor 13 can be D-shaped, so ,
  • the installation hole on the impeller 9 is set as a D-type installation hole, to avoid the relative torsion of the impeller 9 and the rotating shaft, and improve the structural stability.
  • the impeller 9 adopts a toothed structure, and a number of staggered blades are arranged on the front and back of the impeller 9 with symmetrical balance holes in the middle to offset the pressure difference between the front and back of the impeller 9 and the operation is more stable.
  • the front flange of the motor 13 is provided with a bearing mounting groove
  • the bearing mounting groove is provided with a front bearing 14 sleeved on the rotating shaft of the motor
  • the front bearing 14 is provided with a limit position behind it.
  • the pressure ring 16 is connected and fixed with the front flange of the motor by a first screw 15 to limit the position of the front bearing 14.
  • the inner ring of the front bearing 14 is in interference fit with the rotating shaft of the motor and passes through the front bearing 14
  • the axial limit of the shaft is carried out, thereby improving the axial stability of the impeller 9 and ensuring the small gap between the two sides of the impeller 9 and the pump body 7 and the pump body flange 11.
  • the control gap is within the range of 0.1-0.25mm, which avoids The friction between the impeller 9 and the pump body 7 and the pump body flange 11 avoids the blocking problem of the motor 13.
  • the top two sides of the pump body 7 are provided with inlet pipe joints 7b and outlet pipe joints 7a extending obliquely upward and outward.
  • the inlet pipe joints 7b and outlet pipe joints 7a are distributed in a V-shaped angle. It is convenient to connect with the water inlet and outlet pipes.
  • the front of the pump body 7 is recessed with a liquid storage chamber 7e that wraps the vortex chamber 7d and a gas-liquid separation chamber 7f located above the liquid storage chamber 7e.
  • the gas-liquid separation chamber 7f is provided with two obliquely upwardly extending partitions.
  • the vortex chamber 7d is provided with a drainage port 7i communicating with the gas-liquid separation chamber 7f, and the top of the vortex chamber 7d is provided with an impeller 9 Cut the tongue portion 7c, the drainage port 7i and the suction cavity 7h are located on both sides of the tongue portion.
  • the cover plate 4 is provided on the front of the pump body 7 to close the liquid storage chamber 7e, the gas-liquid separation chamber 7f and the water suction chamber 7h, and a seal is provided between the cover plate 4 and the pump body 7.
  • the gasket 5 ensures the sealing effect of the liquid storage chamber 7e, the gas-liquid separation chamber 7f and the water suction cavity 7h through the sealing gasket 5.
  • the cover plate 4 is fixed on the pump body 7 by means of second screws 3 or hot-melt welding.
  • the cover plate 4, the gasket 5 and the pump body 7 can all be made of plastic parts, which are light in weight and avoid rust problems. Assembled by hot melt welding, the structure is stable.
  • the water injection plug 6 is installed on the pump body 7 in a threaded manner.
  • water flow can be injected into the liquid storage chamber 7e, and then the water injection plug 6 is installed for sealing.
  • the bottom of the vortex chamber 7d is provided with a return hole 7g communicating with the liquid storage chamber 7e.
  • the water flow in the liquid storage chamber 7e enters the vortex chamber 7d from the return hole 7g and can be mixed with the sucked gas.
  • the water in the pump body 7 first enters the water suction cavity through the siphon effect for 7 hours.
  • the utility model points out a multi-purpose transfer pump without secondary water injection. As long as part of the water is injected into the vortex chamber 7d when pumping water for the first time, there is no need to inject water during subsequent pumping. The operation is convenient, and the impeller 9 The axial structure is stable, and the impeller has a good lubrication effect, which avoids friction problems.

Abstract

一种免二次注水的多用途转移泵，包括：盖板（4）、注水塞（6）、泵体（7）、叶轮（9）、泵体法兰（11）和电机（13），泵体法兰（11）设置在电机（13）端部，泵体（7）设置在泵体法兰（11）正面，泵体（7）背面内凹设置有与叶轮（9）对应的涡室（7d），叶轮（9）设置在涡室（7d）中且同心固定在电机（13）的转轴上，涡室（7d）顶部设置有与叶轮（9）相切的隔舌部（7c），泵体（7）正面内凹设置有包裹涡室（7d）的储液室（7e）及位于储液室（7e）上方的气液分离室（7f），泵体（7）顶部两侧设置有斜向上方外侧延伸的进水管接头（7b）和出水管接头（7a），气液分离室（7f）中设置有两条隔板而形成连通进水管接头（7b）与涡室（7d）的吸水腔体（7h）。

Description

一种免二次注水的多用途转移泵 技术领域
本实用新型涉及水泵领域，特别是涉及一种免二次注水的多用途转移泵。
背景技术
一般的多用途转移泵，通常采用橡胶叶轮，泵体内腔体呈凸轮状结构，泵体内注水润滑后，橡胶叶轮在内腔体内转动，其柔性的叶轮片会折弯变形，叶轮片在内腔里变形过程中会产生容积变化，因而有效且快速的将水吸入和挤出，实现自吸泵的自吸过程。
由于橡胶叶轮有折弯使用寿命，超过寿命时间，叶轮会折断，导致水泵不工作，水泵每次工作时需要加水润滑叶轮，否则叶轮容易过热，导致损坏，需要更换叶轮，使用比较麻烦，需要改进。
实用新型内容
本实用新型主要解决的技术问题是提供一种免二次注水的多用途转移泵，避免二次注水的问题，提升叶轮使用寿命。
为解决上述技术问题，本实用新型采用的一个技术方案是：提供一种免二次注水的多用途转移泵，包括：盖板、注水塞、泵体、叶轮、泵体法兰和电机，所述泵体法兰设置在电机端部，所述泵体设置在泵体法兰正面，所述泵体背面内凹设置有与叶轮对应的涡室，所述叶轮设置在涡室中且同心固定在电机的转轴上，所述涡室顶部设置有与叶轮相切的隔舌部，所述泵体正面内凹设置有包裹涡室的储液室及位于储液室上方的气液分离室，所述泵体顶部两侧设置有斜向上方外侧延伸的进水管接头和出水管接头，所述气液分离室中设置有两条隔板而形成连通进水管接头与涡室的吸水腔体，所述涡室上设置有与气液分离室 连通的排水口，所述排水口和吸水腔体位于隔舌部两侧，所述盖板设置在泵体正面进行储液室、气液分离室和吸水腔体的封闭，所述注水塞采用螺纹方式安装在泵体上。
在本实用新型一个较佳实施例中，所述进水管接头和出水管接头呈V形夹角分布。
在本实用新型一个较佳实施例中，所述电机的前法兰内设置有轴承安装槽，所述轴承安装槽中设置有套设在电机的转轴上的前轴承，所述前轴承后方设置有限位压环。
在本实用新型一个较佳实施例中，所述限位压环采用第一螺钉与电机的前法兰连接固定。
在本实用新型一个较佳实施例中，所述叶轮上设置有指向电机的转轴表面的紧定螺钉，所述叶轮采用齿形结构叶轮。
在本实用新型一个较佳实施例中，所述盖板与泵体之间设置有密封垫。
在本实用新型一个较佳实施例中，所述泵体法兰与泵体之间设置有O型圈。
在本实用新型一个较佳实施例中，所述盖板采用第二螺钉或者热熔焊接的方式固定在泵体上。
在本实用新型一个较佳实施例中，所述泵体上设置有与泵体法兰相连接的第三螺钉，所述泵体上还设置有贯穿泵体法兰而与电机的前法兰相连接的第四螺钉。
在本实用新型一个较佳实施例中，所述泵体法兰上设置有手把。
本实用新型的有益效果是：本实用新型指出的一种免二次注水的多用途转移泵，特别设计了斜向上延伸的吸水腔体和进水管接头，电机关闭后泵体内的 水回流进入吸水腔体和进水管接头，当泵体内水位回流至隔舌部时，吸水腔体内进入空气，水不再回流，虹吸效应失效，由于吸水腔体和进水管接头倾斜朝上，吸水腔体和进水管接头中部分水因重力向下流至涡室内，淹没叶轮，电机第二次工作时，泵体内不需要注水，就能达到自吸效果，大大提升了操作的便利性，叶轮润滑效果好，使用寿命长。
附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本实用新型一种免二次注水的多用途转移泵一较佳实施例的结构示意图；
图2是图1的爆炸图；
图3是图2中泵体法兰的剖视图。
具体实施方式
下面将对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请参阅图1～图3，本实用新型实施例包括：
如图1和图2所示的免二次注水的多用途转移泵，包括：盖板4、注水塞6、泵体7、叶轮9、泵体法兰11和电机13，所述泵体法兰11设置在电机13端部，所述泵体7设置在泵体法兰11正面，所述泵体7上设置有与泵体法兰11相连 接的第三螺钉1，结构牢固，所述泵体法兰11与泵体7之间设置有O型圈10，确保连接处的密封性。
所述泵体7上还设置有贯穿泵体法兰11而与电机13的前法兰相连接的第四螺钉2，实现了泵体法兰11在电机13端部的固定，拆装便利。所述泵体法兰11上设置有手把12，便携性好。
所述泵体7背面内凹设置有与叶轮9对应的涡室7d，所述叶轮9设置在涡室7d中且同心固定在电机13的转轴上，所述叶轮9上设置有指向电机13的转轴表面的紧定螺钉8，实现叶轮9的轴向调节和固定，叶轮9上设置有与紧定螺钉8对应的螺纹孔，安装便利，而且电机13的转轴端部截面可以采用D形，因此，叶轮9上的安装孔设置为D型安装孔，避免叶轮9与转轴的相对扭转，提升结构稳定性。另外，叶轮9采用齿形结构，叶轮9正反面上设置有若干交错的叶片，中间有对称的平衡孔，用来抵消叶轮9正反面的压力差，运转更加稳定。
如图1所示，所述电机13的前法兰内设置有轴承安装槽，所述轴承安装槽中设置有套设在电机的转轴上的前轴承14，所述前轴承14后方设置有限位压环16，所述限位压环16采用第一螺钉15与电机的前法兰连接固定，进行前轴承14的限位，前轴承14内圈与电机的转轴过盈配合，通过前轴承14进行转轴的轴向限位，从而提升了叶轮9的轴向稳定性，保证叶轮9两侧与泵体7及泵体法兰11的微小间隙，控制间隙在0.1-0.25mm范围内，避免了叶轮9与泵体7及泵体法兰11的摩擦，从而避免导致电机13的堵转问题。
如图3所示，所述泵体7顶部两侧设置有斜向上方外侧延伸的进水管接头7b和出水管接头7a，所述进水管接头7b和出水管接头7a呈V形夹角分布，方便与进水和出水管路的连接。
所述泵体7正面内凹设置有包裹涡室7d的储液室7e及位于储液室7e上方的气液分离室7f，所述气液分离室7f中设置有两条斜向上延伸的隔板而形成连通进水管接头7b与涡室7d的吸水腔体7h，所述涡室7d上设置有与气液分离室7f连通的排水口7i，所述涡室7d顶部设置有与叶轮9相切的隔舌部7c，所述排水口7i和吸水腔体7h位于隔舌部两侧，叶轮9旋转时，将吸水腔体7h中的气体和涡室7d的水一起搅动，通过隔舌部7c进行水流的阻挡，使得水流进入气液分离室7f，排出水流中的气体，而使得吸水腔体7h内形成一定的真空度，完成自吸抽水。
如图3所示，所述盖板4设置在泵体7正面进行储液室7e、气液分离室7f和吸水腔体7h的封闭，所述盖板4与泵体7之间设置有密封垫5，通过密封垫5确保储液室7e、气液分离室7f和吸水腔体7h的密封效果。所述盖板4采用第二螺钉3或者热熔焊接的方式固定在泵体7上，盖板4、密封垫5和泵体7都可以采用塑料件，自重轻，避免锈蚀问题，而且可以采用热熔焊接的方式组装，结构稳定。
所述注水塞6采用螺纹方式安装在泵体7上，第一次工作时，先打开注水塞6，即可向储液室7e中注入水流，然后再安装注水塞6进行密封。涡室7d底部设置有与储液室7e连通的回流孔7g，储液室7e中水流从回流孔7g中进入涡室7d，可以与吸入的气体混合。工作结束后，泵体7内的水先通过虹吸效应进入吸水腔体7h，当泵体7内的水位降低至隔舌部7c时，吸水腔体7h内进入空气，水不再回流，虹吸效应失效，由于吸水腔体7h和进水管接头7b倾斜朝上，吸水腔体7h和进水管接头7b中部分水因重力向下流至涡室7d内，淹没叶轮9，方便后续的二次泵水。
综上所述，本实用新型指出的一种免二次注水的多用途转移泵，只要首次 泵水时先向涡室7d注入部分水，后续泵水时无需注水，操作方便，而且叶轮9的轴向结构稳定，叶轮润滑效果好，避免了摩擦问题。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (10)

  1. 一种免二次注水的多用途转移泵，其特征在于，包括：盖板、注水塞、泵体、叶轮、泵体法兰和电机，所述泵体法兰设置在电机端部，所述泵体设置在泵体法兰正面，所述泵体背面内凹设置有与叶轮对应的涡室，所述叶轮设置在涡室中且同心固定在电机的转轴上，所述涡室顶部设置有与叶轮相切的隔舌部，所述泵体正面内凹设置有包裹涡室的储液室及位于储液室上方的气液分离室，所述泵体顶部两侧设置有斜向上方外侧延伸的进水管接头和出水管接头，所述气液分离室中设置有两条隔板而形成连通进水管接头与涡室的吸水腔体，所述涡室上设置有与气液分离室连通的排水口，所述排水口和吸水腔体位于隔舌部两侧，所述盖板设置在泵体正面进行储液室、气液分离室和吸水腔体的封闭，所述注水塞采用螺纹方式安装在泵体上。
  2. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述进水管接头和出水管接头呈V形夹角分布。
  3. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述电机的前法兰内设置有轴承安装槽，所述轴承安装槽中设置有套设在电机的转轴上的前轴承，所述前轴承后方设置有限位压环。
  4. 根据权利要求3所述的免二次注水的多用途转移泵，其特征在于，所述限位压环采用第一螺钉与电机的前法兰连接固定。
  5. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述叶轮上设置有指向电机的转轴表面的紧定螺钉，所述叶轮采用齿形结构叶轮。
  6. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述盖板与泵体之间设置有密封垫。
  7. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述 泵体法兰与泵体之间设置有O型圈。
  8. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述盖板采用第二螺钉或者热熔焊接的方式固定在泵体上。
  9. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述泵体上设置有与泵体法兰相连接的第三螺钉，所述泵体上还设置有贯穿泵体法兰而与电机的前法兰相连接的第四螺钉。
  10. 根据权利要求1所述的免二次注水的多用途转移泵，其特征在于，所述泵体法兰上设置有手把。
PCT/CN2020/094811 2019-12-06 2020-06-08 一种免二次注水的多用途转移泵 WO2021109513A1 (zh)

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