WO2020037639A1 - 具有过滤结构的封闭式叶轮水泵 - Google Patents

具有过滤结构的封闭式叶轮水泵 Download PDF

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Publication number
WO2020037639A1
WO2020037639A1 PCT/CN2018/102164 CN2018102164W WO2020037639A1 WO 2020037639 A1 WO2020037639 A1 WO 2020037639A1 CN 2018102164 W CN2018102164 W CN 2018102164W WO 2020037639 A1 WO2020037639 A1 WO 2020037639A1
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Prior art keywords
filter element
impeller
water pump
filter
filtering
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PCT/CN2018/102164
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English (en)
French (fr)
Inventor
罗金
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苏州赫尔拜斯泵业有限公司
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Application filed by 苏州赫尔拜斯泵业有限公司 filed Critical 苏州赫尔拜斯泵业有限公司
Priority to PCT/CN2018/102164 priority Critical patent/WO2020037639A1/zh
Priority to DE212018000023.9U priority patent/DE212018000023U1/de
Publication of WO2020037639A1 publication Critical patent/WO2020037639A1/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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers

Definitions

  • the utility model belongs to the technical field of water pumps, and particularly relates to a closed impeller water pump with a filtering structure.
  • a water pump includes a water pump body, an impeller, and a motor; the water pump body has a water inlet; water enters the water pump body from the water inlet, and the motor drives the impeller to rotate to achieve the pumping function; but in practice, Generally, impurities such as weeds and debris are often mixed in the pumped water; during the operation of the pump, these impurities will remain on the impeller, which will affect the working performance of the pump, reduce working efficiency, and waste energy. At present, most of the water inlets of water pumps do not have a filter cover, or the design of the filter cover is unreasonable. During the operation, the water inlet pipe is easily blocked by debris, leading to shutdown and even damage to the water pump.
  • the technical problem to be solved by the utility model is to provide a closed impeller water pump with a filtering structure.
  • a filtering device is arranged at the water inlet pipe, and most of the sundries can be blocked outside the filter element, so that the sundries can be prevented from being entangled.
  • the impeller affects the working performance of the pump, improves the working stability of the pump, prolongs the service life of the pump, and improves the working efficiency.
  • a technical solution adopted by the present utility model is to provide a closed impeller water pump having a filtering structure, including a water pump body, the water pump body including an impeller casing, an impeller, and a motor, and the impeller is arranged on the impeller. Inside the casing, the impeller is connected to the output shaft of the motor, characterized in that the water pump body includes an outlet pipe and an inlet pipe, and a filter device is provided upstream of the inlet pipe, and the filter device is detachably connected to the inlet pipe. ;
  • the filtering device includes a flow guide bracket and a filter element each having a circular cross section, the flow guide bracket is provided upstream of the filter element, and the flow guide bracket and the filter element are detachably connected.
  • the filter element includes a shell and a filter body.
  • the filter body is movably disposed in the shell and is sleeved with the shell.
  • the filter body includes a hollow cylindrical filter element, and a plurality of uniformly distributed hydrophobic elements are provided on a side wall of the filter element.
  • the side wall of the filter element is provided with scraping teeth arranged along its length direction, the scraping teeth are fixedly connected to the filter element, and the top surface of the scraping teeth contacting the casing is abutted against the inner wall of the casing
  • the top surface is connected to the side wall of the filter element through two sides, one of the two sides is a vertical surface perpendicular to the side wall of the filter element, and the other is an inclined surface, and the inclined surface is connected to the filter element.
  • the included angle of the side wall is an acute angle, the size of the included angle is 30-60 °, and the scraping teeth are provided in a plurality and are evenly distributed along the circumferential direction of the filter element;
  • the upper end of the diversion support is a water inlet, and a circle of evenly distributed water outlets is provided on the periphery of the lower end of the diversion support.
  • the center of the diversion support protrudes upward to form a diversion arc surface, and the diversion arc surface
  • the upper end is connected to the water inlet and the lower end is connected to the water outlet.
  • the hydrophobic hole is a circular through hole, and the diameter of the hydrophobic hole is 0.5-1.5cm.
  • scraping teeth are provided with 3-7
  • the detachable connection between the filtering device and the water inlet pipe is a flange connection.
  • the way to realize the detachable connection between the flow guide bracket and the filter is a flange connection.
  • the size of the included angle is 45 °.
  • the filter element is a stainless steel filter element
  • the scraping teeth are hard plastic scraping teeth.
  • the flow guide is an integrally formed metal flow guide.
  • the diameter of the filter element is not less than the diameter of the water inlet pipe.
  • the utility model comprises an impeller casing, an impeller and a motor.
  • the pump body further comprises an output pipe and an inlet pipe.
  • the inlet pipe is provided with a filtering device, which can block most of the sundries outside the filter element, thereby preventing sundries from being entangled in the impeller. This will affect the working performance of the pump, improve the working stability of the pump, extend the service life of the pump, and improve work efficiency; and the filter device and the inlet pipe are set as a detachable connection mode, which is convenient for replacement and maintenance, saving time and effort;
  • the filtering device includes a deflector bracket and a filter element.
  • the deflector bracket is detachably connected to the filter element, which is convenient for replacement and maintenance, saving time and effort.
  • the filter element includes a housing and a filter body, and the filter body is movably disposed on the filter body. The inside of the shell is sleeved with the shell.
  • the filter body includes a plurality of toothed filter elements with uniformly arranged sidewalls. The sidewalls of the filter elements are provided with a plurality of uniformly distributed hydrophobic holes.
  • remove the filter element first The filter body rotates a few times in the casing to scrape off the debris left between the filter element and the casing. Finally, remove the filter body in the casing and clean the filtered debris to achieve the filtering effect, so as to prevent the debris from being entangled.
  • the impeller the working performance of the pump is affected, the working stability of the pump is improved, the service life of the pump is extended, and the working efficiency is improved.
  • FIG. 1 is a schematic structural diagram of the present invention
  • FIG. 2 is a schematic structural diagram of a filter element of the present invention
  • FIG. 3 is a schematic structural diagram of a filter body of the present invention.
  • FIG. 4 is a combined schematic view of a flow guide bracket of the present invention.
  • FIG. 5 is a cross-sectional view of a guide bracket of the present invention.
  • Water pump body 1 motor 2, water outlet pipe 3, water inlet pipe 4, filter device 6, guide bracket 5, water inlet 53, water outlet 51, guide surface 52, filter 7, housing 8, filter 9, filter element 91.
  • An enclosed impeller water pump with a filtering structure includes a water pump body 1 including an impeller housing 10, an impeller, and a motor 2.
  • the impeller is disposed in the impeller housing.
  • the output shaft of the impeller connected to the motor is characterized in that the pump body includes an outlet pipe 3 and an inlet pipe 4, and a filter device 6 is provided upstream of the inlet pipe, and the filter device is detachable from the inlet pipe. connection;
  • the filtering device includes a flow guide bracket 5 and a filter element 7 each having a circular cross section, and the flow guide bracket is detachably connected to the filter element.
  • the filter element includes a housing 8 and a filter body 9, and the filter body.
  • the filter body is movably disposed in the casing and is sleeved with the casing.
  • the filter body includes a hollow cylindrical filter element 91.
  • a side wall of the filter element is provided with a plurality of uniformly distributed hydrophobic holes 92.
  • a side wall of the filter element is provided with
  • the scraper teeth 93 are arranged along the length direction, the scraper teeth are fixedly connected to the filter element, and the top surface of the scraper teeth in contact with the casing is an arc surface that fits the inner wall of the casing, and the top surface passes through
  • the two sides are connected to the side wall of the filter element, one of the two sides is a vertical plane perpendicular to the side wall of the filter element, and the other is an inclined plane, and the angle between the inclined surface and the side wall of the filter element is an acute angle, The included angle is 30-60 °, and the scraping teeth are provided in a plurality and are evenly distributed along the circumferential direction of the filter element;
  • the upper end of the deflector bracket 5 is a water inlet 53, a peripheral edge of the lower end of the deflector bracket is provided with a circle of evenly distributed water outlets 51, and the center of the deflector bracket protrudes upward to form a diversion arc surface 52.
  • the upper end of the diversion arc surface is in communication with the water inlet and the lower end is in communication with the water outlet.
  • the hydrophobic hole is a circular through hole, and the diameter of the hydrophobic hole is 0.5-1.5cm
  • the scraping teeth are provided with 3-7.
  • the scraping teeth are provided with 5
  • the detachable connection between the filtering device and the water inlet pipe is flange connection.
  • the way to realize the detachable connection between the flow guide bracket and the filter is a flange connection.
  • the size of the included angle is 45 °.
  • the filter element is a stainless steel filter element, and the scraping teeth are hard plastic scraping teeth.
  • the flow guide is a metal flow guide integrally formed.
  • the diameter of the filter element is not less than the diameter of the water inlet pipe.
  • the motor starts, the impeller rotates to pump water, and the water enters the filter from the guide bracket under the suction of the impeller, and enters between the filter body and the housing under the guidance of the guide arc surface, and then enters the middle of the filter element from the hydrophobic hole of the filter body. Enter the impeller; debris is blocked between the filter element and the casing by the hydrophobic hole. After the water pump is used, remove the filter element and rotate the filter body a few times in the casing to scrape the teeth remaining between the filter element and the casing.
  • Debris finally remove the filter body in the shell, clean up the filtered debris, and achieve the filtering effect, so as to prevent debris from being entangled on the impeller to affect the working performance of the pump, improve the working stability of the pump, and extend the service life of the pump ,Improve work efficiency.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

具有过滤结构的封闭式叶轮水泵，包括泵体（1）、叶轮和电机，泵体（1）包括叶轮外壳（10），叶轮位于叶轮外壳（10）内且连接电机的输出轴。泵体（1）包括出水管（3）和进水管（4），进水管（4）的上游设有过滤装置（6），过滤装置（6）包括导流支架（5）和过滤件（7），过滤件（7）包括外壳（8）和过滤体（9），过滤体（9）包括滤芯（91），滤芯（91）的侧壁设有疏水孔（92）和多个刮齿（93）；导流支架（5）的下端设有出水口（51），导流支架（5）的中心向上凸起形成导流弧面。该水泵可以把大部分杂物挡在滤芯（91）外，还能利用刮齿（93）刮去滤芯（91）和外壳（8）之间的杂质，防止杂物缠绕叶轮，从而提高了水泵的稳定性，延长了使用寿命，提高了工作效率。

Description

具有过滤结构的封闭式叶轮水泵 技术领域
本实用新型属于水泵技术领域，具体涉及一种具有过滤结构的封闭式叶轮水泵。
背景技术
在现有技术中，水泵，包含水泵本体、叶轮、电机；所述水泵本体上有进水口；水从进水口进入水泵本体内部，电机带动叶轮转动，可以实现抽水的功能；但在实践中，通常情况下，被抽的水中常常混有杂草、杂物等杂质；在水泵工作过程中，这些杂质会残绕在叶轮上，从而影响水泵的工作性能，降低工作效率，浪费能源。目前水泵的进水口大都无过滤罩，或者过滤罩设计的不合理，在运行过程中，进水管很容易被杂物堵塞，从而导致停机，甚至损坏水泵。
实用新型内容
本实用新型所要解决的技术问题是：提供一种具有过滤结构的封闭式叶轮水泵，进水管处设置过滤装置，可以把大部分的杂物给挡在滤芯的外面，从而可以防止杂物缠绕在叶轮上从而影响水泵的工作性能，提高水泵的工作稳定性，延长水泵的使用寿命，提高工作效率。
为解决上述技术问题，本实用新型采用的一个技术方案是：提供一种具有过滤结构的封闭式叶轮水泵，包括水泵本体，所述水泵本体包括叶轮外壳、叶轮和电机，所述叶轮设于叶轮外壳内，所述叶轮连接电机的输出轴，其特征在于：所述水泵本体包括出水管和进水管，所述进水管的上游设有过滤装置，所述过滤装置与所述进水管可拆卸连接；
所述过滤装置包括截面皆为圆形的导流支架和过滤件，所述导流支架设于所述过滤件的上游且所述导流支架与所述过滤件之间可拆卸连接，所述过 滤件包括外壳和过滤体，所述过滤体活动设于外壳内且与所述外壳套接，所述过滤体包括空心圆筒状的滤芯，所述滤芯的侧壁设有若干均匀分布的疏水孔；所述滤芯的侧壁设有沿其长度方向设置的刮齿，所述刮齿与所述滤芯固定连接，所述刮齿与所述外壳接触的顶面为与外壳的内壁相贴合的弧面，所述顶面通过两个侧面与滤芯的侧壁连接，两所述侧面的其中之一为垂直于滤芯侧壁的竖直面，另一为斜面，所述斜面与所述滤芯的侧壁的夹角为锐角，所述夹角的大小为30-60°，所述刮齿设有多个且沿滤芯的周向均匀分布；
所述导流支架的上端为进水口，所述导流支架的下端周缘设有一圈均匀分布的出水口，所述导流支架的中心向上凸起形成导流弧面，所述导流弧面的上端与进水口连通且下端与所述出水口连通。
进一步地说，所述疏水孔为圆形通孔，所述疏水孔的直径为0.5-1.5cm
进一步地说，所述刮齿设有3-7个
进一步地说，所述出水口设有3-7个。
进一步地说，实现所述过滤装置与所述进水管可拆卸连接的方式为法兰连接。
进一步地说，实现所述导流支架与所述过滤件可拆卸连接的方式为法兰连接。
进一步地说，所述夹角的大小为45°。
进一步地说，所述过滤芯为不锈钢过滤芯，所述刮齿为硬塑料刮齿。
进一步地说，所述导流件为一体成型的金属导流件。
进一步地说，所述过滤件的直径不小于进水管的直径。
本实用新型的有益效果：
本实用新型包括叶轮外壳、叶轮和电机，水泵本体还包括输出管和进水管，进水管设有过滤装置，可以把大部分的杂物给挡在滤芯的外面，从而可以防止杂物缠绕在叶轮上从而影响水泵的工作性能，提高水泵的工作稳定性，延长水泵的使用寿命，提高工作效率；且过滤装置与进水管设为可拆卸连接方式，方便更换与维修，省时省力；
更佳的是，过滤装置包括导流支架和过滤件，导流支架与过滤件可拆卸 连接，方便更换与维修，省时省力；再者，过滤件包括外壳和过滤体，过滤体活动设于外壳内与外壳套接，过滤体包括侧壁均匀设有多个刮齿的滤芯，滤芯的侧壁设有若干均匀分布的疏水孔，水自导流支架进入过滤件，在导流弧面的引导下进入过滤体和外壳之间，然后自过滤体的疏水孔进入滤芯中间，最后进入叶轮；杂物被疏水孔阻挡留在滤芯和外壳之间，水泵使用完毕，拆下过滤件，先把过滤体在外壳内旋转几圈，使刮齿刮下留在滤芯与外壳之间的杂物，最后取出外壳内的过滤体，清理过滤下来的杂物，达到过滤的效果，从而防止杂物缠绕在叶轮上从而影响水泵的工作性能，提高水泵的工作稳定性，延长水泵的使用寿命，提高工作效率。
附图说明
图1为本实用新型的结构示意图；
图2为本实用新型的过滤件的结构示意图；
图3为本实用新型的过滤体的结构示意图；
图4为本实用新型的导流支架的组合示意图；
图5为本实用新型的导流支架的剖视图；
图中各部分的附图标记如下：
水泵本体1、电机2、出水管3、进水管4、过滤装置6、导流支架5、进水口53、出水口51、导流弧面52、过滤件7、外壳8、过滤体9、滤芯91、疏水孔92、刮齿93和外壳10。
具体实施方式
以下实施例用于说明本实用新型，但不用来限制本实用新型的范围。在不背离本实用新型精神和实质的情况下，对本实用新型方法、步骤或条件所作的修改或替换，均属于本实用新型的保护范围。
实施例：一种具有过滤结构的封闭式叶轮水泵，如图1-图5所示，包括水泵本体1，所述水泵本体包括叶轮外壳10、叶轮和电机2，所述叶轮设于叶轮外壳内，所述叶轮连接电机的输出轴，其特征在于：所述水泵本体包括出水 管3和进水管4，所述进水管的上游设有过滤装置6，所述过滤装置与所述进水管可拆卸连接；
所述过滤装置包括截面皆为圆形的导流支架5和过滤件7，所述导流支架与所述过滤件可拆卸连接，所述过滤件包括外壳8和过滤体9，所述过滤体活动设于外壳内且与所述外壳套接，所述过滤体包括空心圆筒状的滤芯91，所述滤芯的侧壁设有若干均匀分布的疏水孔92；所述滤芯的侧壁设有沿其长度方向设置的刮齿93，所述刮齿与所述滤芯固定连接，所述刮齿与所述外壳接触的顶面为与外壳的内壁相贴合的弧面，所述顶面通过两个侧面与滤芯的侧壁连接，两所述侧面的其中之一为垂直于滤芯侧壁的竖直面，另一为斜面，所述斜面与所述滤芯的侧壁的夹角为锐角，所述夹角的大小为30-60°，所述刮齿设有多个且沿滤芯的周向均匀分布；
所述导流支架5的上端为进水口53，所述导流支架的下端周缘设有一圈均匀分布的出水口51，所述导流支架的中心向上凸起形成导流弧面52，所述导流弧面的上端与进水口连通且下端与所述出水口连通。
所述疏水孔为圆形通孔，所述疏水孔的直径为0.5-1.5cm
所述刮齿设有3-7个。
本实施例中优选的是，所述刮齿设有5个
所述出水口设有3-7个。
本实施例中，所述出水口设有7个。
实现所述过滤装置与所述进水管可拆卸连接的方式为法兰连接。
实现所述导流支架与所述过滤件可拆卸连接的方式为法兰连接。
本实施例中优选的是，所述夹角的大小为45°。
所述过滤芯为不锈钢过滤芯，所述刮齿为硬塑料刮齿。
所述导流件为一体成型的金属导流件。
所述过滤件的直径不小于进水管的直径。
本实用新型的工作原理为：
电机启动，叶轮旋转抽水，水在叶轮的抽吸下自导流支架进入过滤件，在导流弧面的引导下进入过滤体和外壳之间，然后自过滤体的疏水孔进入滤 芯中间，最后进入叶轮；杂物被疏水孔阻挡留在滤芯和外壳之间，水泵使用完毕，拆下过滤件，先把过滤体在外壳内旋转几圈，使刮齿刮下留在滤芯与外壳之间的杂物，最后取出外壳内的过滤体，清理过滤下来的杂物，达到过滤的效果，从而防止杂物缠绕在叶轮上从而影响水泵的工作性能，提高水泵的工作稳定性，延长水泵的使用寿命，提高工作效率。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需穷举。而由此所引伸出的显而易见的变化或变动仍处于本实用新型创造的保护范围之中。

Claims (10)

  1. 一种具有过滤结构的封闭式叶轮水泵，包括水泵本体(1)，所述水泵本体包括叶轮外壳(10)、叶轮和电机(2)，所述叶轮设于叶轮外壳内，所述叶轮连接电机的输出轴，其特征在于：所述水泵本体包括出水管(3)和进水管(4)，所述进水管的上游设有过滤装置(6)，所述过滤装置与所述进水管可拆卸连接；
    所述过滤装置包括截面皆为圆形的导流支架(5)和过滤件(7)，所述导流支架设于所述过滤件的上游且所述导流支架与所述过滤件之间可拆卸连接，所述过滤件包括外壳(8)和过滤体(9)，所述过滤体活动设于外壳内且与所述外壳套接，所述过滤体包括空心圆筒状的滤芯(91)，所述滤芯的侧壁设有若干均匀分布的疏水孔(92)；所述滤芯的侧壁设有沿其长度方向设置的刮齿(93)，所述刮齿与所述滤芯固定连接，所述刮齿与所述外壳接触的顶面为与外壳的内壁相贴合的弧面，所述顶面通过两个侧面与滤芯的侧壁连接，两所述侧面的其中之一为垂直于滤芯侧壁的竖直面，另一为斜面，所述斜面与所述滤芯的侧壁的夹角为锐角，所述夹角的大小为30-60°，所述刮齿设有多个且沿滤芯的周向均匀分布；
    所述导流支架(5)的上端为进水口(53)，所述导流支架的下端周缘设有一圈均匀分布的出水口(51)，所述导流支架的中心向上凸起形成导流弧面(52)，所述导流弧面的上端与进水口连通且下端与所述出水口连通。
  2. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于:所述疏水孔为圆形通孔，所述疏水孔的直径为0.5-1.5cm。
  3. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：所述刮齿设有3-7个
  4. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：所述出水口设有3-7个。
  5. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：实现所述过滤装置与所述进水管可拆卸连接的方式为法兰连接。
  6. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：实现所述导流支架与所述过滤件可拆卸连接的方式为法兰连接。
  7. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：所述夹角的大小为45°。
  8. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：所述过滤芯为不锈钢过滤芯，所述刮齿为硬塑料刮齿。
  9. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：所述导流件为一体成型的金属导流件。
  10. 根据权利要求1所述的具有过滤结构的封闭式叶轮水泵，其特征在于：所述过滤件的直径不小于进水管的直径。
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CN114483589A (zh) * 2022-01-25 2022-05-13 威乐(中国)水泵系统有限公司 一种单级双吸离心泵
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CN112360748A (zh) * 2020-10-30 2021-02-12 冯海迪 一种卧式多级给水泵
CN113847260A (zh) * 2021-10-28 2021-12-28 臻友重工(江苏)有限公司 一种防泄漏防涡流除尘风机叶轮专用密封叶片风机
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CN117414619A (zh) * 2023-11-27 2024-01-19 东莞市律奥过滤器有限公司 一种防止过滤器滤芯堵塞装置及其防堵方法

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