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WO2016188408A1 - 一种全滑动传动的磁力泵 - Google Patents

一种全滑动传动的磁力泵 Download PDF

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Publication number
WO2016188408A1
WO2016188408A1 PCT/CN2016/083210 CN2016083210W WO2016188408A1 WO 2016188408 A1 WO2016188408 A1 WO 2016188408A1 CN 2016083210 W CN2016083210 W CN 2016083210W WO 2016188408 A1 WO2016188408 A1 WO 2016188408A1
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Prior art keywords
pump
bearing
magnetic
sliding
impeller
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PCT/CN2016/083210
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English (en)
French (fr)
Inventor
高涵文
高来生
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昆山江津长抗干磨磁力泵有限公司
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Publication of WO2016188408A1 publication Critical patent/WO2016188408A1/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
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings

Definitions

  • the invention relates to a magnetic pump, in particular to a fully sliding transmission magnetic pump.
  • the magnetic pump is different from the traditional sealed pump.
  • the motor shaft and the pump shaft are not directly connected. Instead, the motor shaft drives the outer magnetic rotor to rotate.
  • the outer magnetic rotor and the inner magnetic rotor cooperate to drive the inner magnetic rotor to rotate.
  • the rotor drives the pump shaft to rotate, so that the impeller rotor on the pump shaft rotates.
  • a sealed cavity formed by a spacer sleeve is arranged between the magnetic rotor and the outer magnetic rotor of the magnetic pump, and the pump shaft and the inner magnetic rotor are enclosed in the sealed cavity, so that the liquid can be prevented from leaking from the pump shaft end to the outside, and the pump can be
  • the shaft and the inner magnetic rotor are cooled, so that the traditional dynamic sealing of the pump shaft can be used to obtain very excellent leak-free characteristics, so it is widely used to transport various dangerous media such as highly toxic, flammable and explosive. , chemical, pharmaceutical, nuclear power, ship, desalination, national defense and other fields have played an important role.
  • the present invention provides a fully sliding transmission magnetic pump, including a pump body 1, a pump cover 3, a pump shaft 7, an impeller 2, an inner magnetic rotor 5, and an outer magnetic rotor 6,
  • the isolation sleeve 4, the inner magnetic rotor 5 is fixedly mounted on the shaft end of the pump shaft 7, the outer magnetic rotor 6 is mounted on the motor shaft end, and the isolation sleeve 4, the isolation sleeve 4 and the pump cover are disposed between the inner magnetic rotor 5 and the outer magnetic rotor 6.
  • the outer casing is sealed and fixedly connected, and the pump body 1, the pump cover 3 and the isolating sleeve 4 are integrally coupled to form a closed pump chamber, characterized in that a first radial sliding bearing is fitted between the inner wall of the pump body 1 and the impeller 2 8.
  • the pump shaft 7 is supported and mounted in the pump chamber through the second sliding thrust ring 11 and the second radial sliding bearing 9, and the first sliding thrust ring 10 is fitted between the inner wall of the pump chamber and the inner magnetic rotor 5.
  • the impeller 2 is provided with an impeller groove 24 near the inner wall side of the pump body 1.
  • the inner wall of the pump body 1 is provided with a pump body groove 23, and the first radial direction is fitted between the impeller groove 24 and the pump body groove 23. Sliding bearing 8.
  • the first radial sliding bearing 8 comprises a bearing inner ring 15, a bearing outer ring 16, the second radial sliding bearing 9 comprising a bearing inner ring 18, a bearing outer ring 17, the bearing
  • the inner ring 15, 18 and the bearing outer rings 16, 17 are selected from one of a ceramic material and a polytetrafluoroethylene composite material.
  • the first sliding thrust collar 10 includes thrust collars 19 and 20, and the second sliding thrust collar 11 includes thrust collars 21 and 22, the thrust collars 19, 20, 21 and 22 are made of ceramic materials.
  • the utility model has the beneficial effects that the magnetic pump pump shaft 7 and the impeller 2 are supported and installed in the pump chamber through the first radial sliding bearing 8, the second radial sliding bearing 9, and the second sliding thrust ring 11, and the inner wall of the pump chamber is
  • the first sliding thrust ring 10 is fitted between the inner magnetic rotor 5, and the magnetic pump of the structure can effectively control the dynamic balance of the impeller 2, effectively prevent the axial movement of the impeller 2 of the pump shaft 7, and improve the operation safety of the magnetic pump.
  • the pump chamber inner pump shaft 7, the impeller 2, the first radial sliding bearing 8, the second radial sliding bearing 9, the first sliding thrust ring 10 and the second sliding thrust ring 11 are all made of corrosion-resistant materials.
  • the magnetic pump of this structure all uses sliding bearings, the magnetic pump works stably, the running noise is low, and it can withstand heavy loads.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Embodiment 1 A fully sliding transmission magnetic pump comprising a pump body 1, a pump cover 3, a pump shaft 7, an impeller 2, an inner magnetic rotor 5, an outer magnetic rotor 6 and an isolating sleeve 4, and an inner magnetic rotor 5 Fixedly mounted on the shaft end of the pump shaft 7, the outer magnetic rotor 6 is mounted on the motor shaft end, and the isolating sleeve 4 is disposed between the inner magnetic rotor 5 and the outer magnetic rotor 6, and the isolation sleeve 4 and the pump cover 3 are sealed and fixedly connected, and the pump body is 1 and the pump cover 3 is tightly connected, the pump body 1, the pump cover 3, and the isolation sleeve 4 are closed to form a pump chamber.
  • the external magnetic rotor 6 When the magnetic pump is in operation, the external magnetic rotor 6 is rotated by the external driving force, and the outer magnetic rotor 6 and the inner magnetic body
  • the inner magnetic rotor 5 is rotated by the magnetic force between the rotors 5, the inner magnetic rotor 5 drives the pump shaft 7 to rotate, the impeller 2 is mounted on the pump shaft 7 through the key and the keyway, and the impeller 2 rotates together with the pump shaft 7, the pump shaft 7 and
  • the impeller 2 is made of stainless steel, and the pump shaft 7 and the impeller 2 made of the material have corrosion resistance, formability, compatibility, and a wide range of toughness.
  • a first radial sliding bearing 8 is mounted between the inner wall of the magnetic pump body 1 and the impeller 2, and the pump shaft 7 is supported and installed in the pump chamber through the second sliding thrust ring 11 and the second radial sliding bearing 9, the pump
  • the first sliding thrust ring 10 is fitted between the inner wall of the cavity and the inner magnetic rotor 5.
  • the magnetic pump of the present structure can effectively control the dynamic balance of the impeller 2, effectively control the axial movement of the pump shaft 7 and the impeller 2, and improve the magnetic force.
  • the operation of the pump is safe.
  • the magnetic pump of the structure all uses sliding bearings. The magnetic pump works smoothly, has low running noise and can withstand heavy loads.
  • the impeller 2 is provided with an impeller groove 24 near the inner wall side of the pump body 1.
  • the inner wall of the pump body 1 is provided with a pump body groove 23, and the first radial sliding bearing 8 is fitted between the impeller groove 24 and the pump body groove 23.
  • the first radial sliding bearing 8 comprises a bearing inner ring 15, a bearing outer ring 16
  • the second radial sliding bearing 9 comprises a bearing inner ring 18, a bearing outer ring 17, a bearing inner ring 15 and a pump body groove 23
  • a buffer sleeve 12 is disposed between the faces
  • a buffer sleeve 13 is disposed on the mating surface of the bearing outer ring 16 and the impeller groove 24, and
  • a buffer sleeve 14 is disposed between the bearing inner ring 18 and the pump shaft 7, and the bearing outer ring 17 and the inner wall of the pump chamber are
  • the buffer sleeve 25 is arranged to prevent damage to the bearing caused by thermal expansion caused by excessive temperature of the medium.
  • the inner rings 15 and 18 of the bearing and the outer rings 16 and 17 of the bearing are made of ceramic material and polytetrafluoroethylene composite.
  • One of the materials, the radial sliding bearing made of the material has good wear resistance and corrosion resistance, and more importantly, its thermal shock resistance, white lubricity and comprehensive mechanical properties are particularly good, and it is not easy to be damaged. long life.
  • the first sliding thrust collar 10 includes thrust collars 19 and 20, and the second sliding thrust collar 11 includes thrust collars 21 and 22, the thrust collars 19, 20, 21 and 22 being of a ceramic material.
  • the sliding thrust ring made of the material has good corrosion resistance and wear resistance, and more importantly, it has excellent cold and thermal shock resistance, white lubricity and comprehensive mechanical properties, is not easy to be damaged, and has a long service life.
  • a fully sliding transmission magnetic pump includes a pump body 1, a pump cover 3, a pump shaft 7, an impeller 2, an inner magnetic rotor 5, an outer magnetic rotor 6 and a spacer sleeve 4, and the inner magnetic rotor 5 is fixedly mounted on The shaft end of the pump shaft 7 and the outer magnetic rotor 6 are mounted on the shaft end of the motor.
  • An isolation sleeve 4 is arranged between the inner magnetic rotor 5 and the outer magnetic rotor 6. The isolation sleeve 4 and the outer cover of the pump cover 3 are sealed and fixedly connected, and the pump body 1 and the pump are The cover 3 is fastened and connected, and the pump body 1, the pump cover 3 and the isolation sleeve 4 are closed to form a pump chamber.
  • the external magnetic rotor 6 When the magnetic pump is in operation, the external magnetic rotor 6 is driven by an external driving force, and the outer magnetic rotor 6 and the inner magnetic rotor 5 are The inner magnetic rotor 5 is rotated by the magnetic force, and the inner magnetic rotor 5 drives the pump shaft 7 to rotate.
  • the impeller 2 is mounted on the pump shaft 7 through the key and the key groove, and the impeller 2 rotates together with the pump shaft 7, and the pump shaft 7 is made of ceramic. Material, pump shaft 7 should be able to withstand the load of torque, bending moment, etc.
  • the pump shaft 7 made of the material is wear-resistant, corrosion-resistant, temperature-resistant and comprehensive mechanical performance.
  • a first radial sliding bearing 8 is mounted between the inner wall of the magnetic pump body 1 and the impeller 2, and the pump shaft 7 is supported and installed in the pump chamber through the second sliding thrust ring 11 and the second radial sliding bearing 9, the pump
  • the first sliding thrust ring 10 is fitted between the inner wall of the cavity and the inner magnetic rotor 5.
  • the magnetic pump of the present structure can effectively control the dynamic balance of the impeller 2, effectively control the axial movement of the pump shaft 7 and the impeller 2, and improve the magnetic force.
  • the operation of the pump is safe.
  • the magnetic pump of the structure all uses sliding bearings. The magnetic pump works smoothly, has low running noise and can withstand heavy loads.
  • the pump body 1 and the pump cover 3 are lined with a fluoroplastic with a metal outer casing.
  • the impeller 2 is made of a metal insert and is filled with fluoroplastic, has excellent corrosion resistance and good rigidity, and is resistant to impact, vibration and distortion.
  • the impeller 2 is provided with an impeller groove 24 near the inner wall side of the pump body 1.
  • the inner wall of the pump body 1 is provided with a pump body groove 23, and the first radial sliding bearing 8 is fitted between the impeller groove 24 and the pump body groove 23.
  • the first radial sliding bearing 8 comprises a bearing inner ring 15, a bearing outer ring 16, the second radial sliding bearing 9 comprising a bearing inner ring 18, a bearing outer ring 17, the bearing inner ring 15, 18 and a bearing
  • the material selected for the outer rings 16, 17 is one of a ceramic material and a polytetrafluoroethylene composite material.
  • the radial sliding bearing made of the material has good wear resistance and corrosion resistance, and more importantly, it is resistant to heat and cold. Impact, white lubricity and comprehensive mechanical properties are particularly good, not easy to damage, long service life.
  • the first sliding thrust collar 10 includes thrust collars 19 and 20, and the second sliding thrust collar 11 includes thrust collars 21 and 22, the thrust collars 19, 20, 21 and 22 being of a ceramic material.
  • the sliding thrust ring made of the material has good corrosion resistance and wear resistance, and more importantly, it has excellent cold and thermal shock resistance, white lubricity and comprehensive mechanical properties, is not easy to be damaged, and has a long service life.

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

Abstract

一种全滑动传动的磁力泵，其中泵轴（7）和叶轮（2）在泵腔内通过第一径向滑动轴承（8）、第二径向滑动轴承（9）、第二滑动止推圈（11）支撑安装，泵腔内壁与内磁转子（5）之间配合安装第一滑动止推圈（10），该磁力泵可以有效控制叶轮（2）的动平衡不良以及泵轴（7）和叶轮（2）的轴向窜动，提高磁力泵的运行安全，泵腔内部件均选用耐腐蚀材料制成，提高磁力泵的耐腐蚀性能，该磁力泵全部使用滑动轴承，磁力泵工作平稳，运行噪声低，能够承受重载。

Description

一种全滑动传动的磁力泵 技术领域
本发明涉及一种磁力泵，特别是一种全滑动传动的磁力泵。
背景技术
磁力泵不同于传统的密封泵，电机机轴与泵轴并不直接相连，而是电机机轴驱动外磁转子旋转，外磁转子与内磁转子配合通过磁力带动内磁转子转动，由内磁转子带动泵轴旋转，使泵轴上的叶轮转子转动工作。磁力泵内磁转子与外磁转子之间设有隔离套形成的密封腔，将泵轴和内磁转子封闭在密封腔内，一可避免液体由泵轴端向外部渗漏，二可对泵轴和内磁转子进行冷却，因此无需对泵轴采取传统的动态密封就可以获得非常优异的无泄漏特性，因而被广泛用于输送各种剧毒、易燃、易爆等危险介质，在石油、化工、医药、核动力、舰船、海水淡化、国防等领域发挥了重要作用。
叶轮由于材质不均匀，毛胚缺陷、机加工误差、装配误差等的累积，以及设计时存在的非对称性几何形状等，使其质量分布不均匀，形成一定的偏心，当叶轮旋转时，产生不平衡的离心惯性力，从而使泵产生振动和噪音，动平衡不良会降低设备的预期使用寿命，特别表现在轴承的早期损坏，缩短设备的保养周期，增加设备的维护成本，影响产品质量，恶化工作环境等。
发明内容
为了解决上述现有技术难以克服的问题，本发明提供了一种全滑动传动的磁力泵，包括泵体1、泵盖3、泵轴7、叶轮2、内磁转子5、外磁转子6、隔离套4，内磁转子5固定安装在泵轴7轴端，外磁转子6安装在电动机轴端，在内磁转子5和外磁转子6之间设置隔离套4，隔离套4与泵盖3外壳密封固定连接，所述泵体1、泵盖3和隔离套4联接成整体，组成封闭的泵腔，其特征在于：泵体1内壁与叶轮2之间配合安装第一径向滑动轴承8，泵轴7通过第二滑动止推圈11和第二径向滑动轴承9支撑安装于泵腔内，泵腔内壁与内磁转子5之间配合安装第一滑动止推圈10。
作为本发明的进一步改进，所述叶轮2靠近泵体1内壁侧开有叶轮槽24，泵体1内壁开有泵体槽23，叶轮槽24和泵体槽23之间配合安装第一径向滑动轴承8。
作为本发明的进一步改进，所述第一径向滑动轴承8包括轴承内圈15，轴承外圈16，所述第二径向滑动轴承9包括轴承内圈18，轴承外圈17，所述轴承内圈15、18和轴承外圈16、17选用陶瓷材料和聚四氟乙烯复合材料中的一种。
作为本发明的进一步改进，所述第一滑动止推圈10包括止推圈19和20，所述第二滑动止推圈11包括止推圈21和22，所述止推圈19、20、21和22选用陶瓷材料。
本发明的有益效果是：磁力泵泵轴7和叶轮2在泵腔内通过第一径向滑动轴承8、第二径向滑动轴承9、第二滑动止推圈11支撑安装，泵腔内壁与内磁转子5之间配合安装第一滑动止推圈10，本结构的磁力泵可以有效控制叶轮2的动平衡不良，有效阻止泵轴7叶轮2的轴向窜动，提高磁力泵的运行安全，泵腔内泵轴7、叶轮2、第一径向滑动轴承8、第二径向滑动轴承9，第一滑动止推圈10和第二滑动止推圈11选用的都是耐腐蚀材料制成，提高了磁力泵的耐腐蚀性能，本结构磁力泵全部使用滑动轴承，磁力泵工作平稳，运行噪声低，能够承受重载。
附图说明
图1为本发明的结构示意图。
具体实施方式
实施例：实施例一：一种全滑动传动的磁力泵，包括泵体1、泵盖3、泵轴7、叶轮2、内磁转子5、外磁转子6和隔离套4，内磁转子5固定安装在泵轴7轴端，外磁转子6安装在电动机轴端，在内磁转子5和外磁转子6之间设置隔离套4，隔离套4和泵盖3外壳密封固定连接，泵体1和泵盖3之间紧固连接，泵体1、泵盖3、隔离套4封闭形成泵腔，磁力泵工作时，由外部驱动力带动外磁转子6转动，外磁转子6和内磁转子5之间通过磁力带动内磁转子5转动，内磁转子5带动泵轴7旋转，叶轮2通过键与键槽安装于泵轴7，叶轮2随着泵轴7一同旋转工作，泵轴7和叶轮2均选用不锈钢材料，该种材料制成的泵轴7和叶轮2具有耐腐蚀性、成型性、相容性和很宽范围内的强韧性。
所述磁力泵泵体1内壁与叶轮2之间配合安装第一径向滑动轴承8，泵轴7通过第二滑动止推圈11和第二径向滑动轴承9支撑安装于泵腔内，泵腔内壁与内磁转子5之间配合安装第一滑动止推圈10，本结构的磁力泵可以有效控制叶轮2的动平衡不良，有效控制泵轴7和叶轮2的轴向窜动，提高磁力泵的运行安全，所述结构磁力泵全部使用滑动轴承，磁力泵工作平稳，运行噪声低，能够承受重载。
所述叶轮2靠近泵体1内壁侧开有叶轮槽24，泵体1内壁开有泵体槽23，叶轮槽24和泵体槽23之间配合安装第一径向滑动轴承8。
所述第一径向滑动轴承8包括轴承内圈15，轴承外圈16，所述第二径向滑动轴承9包括轴承内圈18，轴承外圈17，轴承内圈15和泵体槽23配合面之间设有缓冲套12，轴承外圈16和叶轮槽24配合面设有缓冲套13，轴承内圈18和泵轴7之间设有缓冲套14，轴承外圈17和泵腔内壁之间设有缓冲套25，可以防止因介质温度过高时引起的热膨胀对轴承造成损坏，所述轴承内圈15、18和轴承外圈16、17选用的材料为陶瓷材料和聚四氟乙烯复合材料中的一种，所述材料制成的径向滑动轴承，耐磨、耐腐性能好，更重要的是其耐冷热冲击性、白润滑性及综合机械性能特别好，不易损坏，使用寿命长。
所述第一滑动止推圈10包括止推圈19和20，所述第二滑动止推圈11包括止推圈21和22，所述止推圈19、20、21和22选用陶瓷材料，所述材料制成的滑动止推圈耐腐、耐磨性能好，更重要的是其耐冷热冲击性、白润滑性及综合机械性能特别好，不易损坏，使用寿命长。
实施例二：一种全滑动传动的磁力泵，包括泵体1、泵盖3、泵轴7、叶轮2、内磁转子5、外磁转子6和隔离套4，内磁转子5固定安装在泵轴7轴端，外磁转子6安装在电动机轴端，在内磁转子5和外磁转子6之间设置隔离套4，隔离套4和泵盖3外壳密封固定连接，泵体1和泵盖3之间紧固连接，泵体1、泵盖3、隔离套4封闭形成泵腔，磁力泵工作时，由外部驱动力带动外磁转子6转动，外磁转子6和内磁转子5之间通过磁力带动内磁转子5转动，内磁转子5带动泵轴7旋转，叶轮2通过键与键槽安装于泵轴7，叶轮2随着泵轴7一同旋转工作，所述泵轴7选用陶瓷材料，泵轴7应能承受扭矩、弯矩等负荷，所述材料制成的泵轴7耐磨、耐腐、耐温、综合机械性能好。
所述磁力泵泵体1内壁与叶轮2之间配合安装第一径向滑动轴承8，泵轴7通过第二滑动止推圈11和第二径向滑动轴承9支撑安装于泵腔内，泵腔内壁与内磁转子5之间配合安装第一滑动止推圈10，本结构的磁力泵可以有效控制叶轮2的动平衡不良，有效控制泵轴7和叶轮2的轴向窜动，提高磁力泵的运行安全，所述结构磁力泵全部使用滑动轴承，磁力泵工作平稳，运行噪声低，能够承受重载。
所述泵体1和泵盖3以金属外壳内衬氟塑料，所述叶轮2采用金属嵌件外包氟塑料，具有优良的耐腐蚀性和良好的刚性，并能耐冲击、耐振动和耐扭曲，所述叶轮2靠近泵体1内壁侧开有叶轮槽24，泵体1内壁开有泵体槽23，叶轮槽24和泵体槽23之间配合安装第一径向滑动轴承8。
所述第一径向滑动轴承8包括轴承内圈15，轴承外圈16，所述第二径向滑动轴承9包括轴承内圈18，轴承外圈17，所述轴承内圈15、18和轴承外圈16、17选用的材料为陶瓷材料和聚四氟乙烯复合材料中的一种，所述材料制成的径向滑动轴承，耐磨、耐腐性能好，更重要的是其耐冷热冲击性、白润滑性及综合机械性能特别好，不易损坏，使用寿命长。
所述第一滑动止推圈10包括止推圈19和20，所述第二滑动止推圈11包括止推圈21和22，所述止推圈19、20、21和22选用陶瓷材料，所述材料制成的滑动止推圈耐腐、耐磨性能好，更重要的是其耐冷热冲击性、白润滑性及综合机械性能特别好，不易损坏，使用寿命长。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (4)

  1. 一种全滑动传动的磁力泵，包括泵体(1)、泵盖(3)、泵轴(7)、叶轮(2)、内磁转子(5)、外磁转子(6)、隔离套(4)，内磁转子(5)固定安装在泵轴(7)轴端，外磁转子(6)安装在电动机轴端，在内磁转子(5)和外磁转子(6)之间设置隔离套(4)，隔离套(4)与泵盖(3)外壳密封固定连接，所述泵体(1)、泵盖(3)和隔离套(4)联接成整体，组成封闭的泵腔，其特征在于：泵体(1)内壁与叶轮(2)之间配合安装第一径向滑动轴承(8)，泵轴(7)通过第二滑动止推圈(11)和第二径向滑动轴承(9)支撑安装于泵腔内，泵腔内壁与内磁转子(5)之间配合安装第一滑动止推圈(10)。
  2. 根据权利要求1所述的磁力泵，其特征在于：所述叶轮(2)靠近泵体(1)内壁侧开有叶轮槽(24)，泵体(1)内壁开有泵体槽(23)，叶轮槽(24)和泵体槽(23)之间配合安装第一径向滑动轴承(8)。
  3. 根据权利要求1所述的磁力泵，其特征在于：所述第一径向滑动轴承(8)包括轴承内圈(15)，轴承外圈(16)，所述第二径向滑动轴承(9)包括轴承内圈(18)，所述轴承外圈(17)，轴承内圈(15)、(18)和轴承外圈(16)、(17)选用陶瓷材料和聚四氟乙烯复合材料中的一种。
  4. 根据权利要求1所述的磁力泵，其特征在于：所述第一滑动止推圈(10)包括止推圈(19)和(20)，所述第二滑动止推圈(11)包括止推圈(21)和(22)，所述止推圈(19)、(20)、(21)和(22)选用陶瓷材料。
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CN112145440A (zh) * 2020-09-30 2020-12-29 徐国华 一种自吸式离心泵
CN113175480A (zh) * 2021-05-18 2021-07-27 杰锋汽车动力系统股份有限公司 一种氢气循环泵轴承结构
CN113623261A (zh) * 2021-08-30 2021-11-09 江苏武新泵业有限公司 一种磁力泵用泄漏监测型双层金属隔离套
CN114738287A (zh) * 2022-03-25 2022-07-12 苏州杰利凯工业设备有限公司 一种带有密封叶轮的无泄漏氟塑料泵装置
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CN106286317A (zh) * 2015-05-28 2017-01-04 昆山江津长抗干磨磁力泵有限公司 一种全滑动传动的磁力泵
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CN112145440A (zh) * 2020-09-30 2020-12-29 徐国华 一种自吸式离心泵
CN112145440B (zh) * 2020-09-30 2022-03-29 东营市深蓝新材料有限公司 一种自吸式离心泵
CN113175480A (zh) * 2021-05-18 2021-07-27 杰锋汽车动力系统股份有限公司 一种氢气循环泵轴承结构
CN113175480B (zh) * 2021-05-18 2023-01-06 杰锋汽车动力系统股份有限公司 一种氢气循环泵轴承结构
CN113623261A (zh) * 2021-08-30 2021-11-09 江苏武新泵业有限公司 一种磁力泵用泄漏监测型双层金属隔离套
CN114738287A (zh) * 2022-03-25 2022-07-12 苏州杰利凯工业设备有限公司 一种带有密封叶轮的无泄漏氟塑料泵装置
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