CN107923405B - 主循环泵机组 - Google Patents

主循环泵机组 Download PDF

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CN107923405B
CN107923405B CN201680037851.0A CN201680037851A CN107923405B CN 107923405 B CN107923405 B CN 107923405B CN 201680037851 A CN201680037851 A CN 201680037851A CN 107923405 B CN107923405 B CN 107923405B
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motor
radial
pump
bearing
axial bearing
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CN107923405A (zh
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V·S·格拉西莫夫
A·V·戈龙科夫
A·S·瓦西里耶夫
R·P·卡赞采夫
S·Y·休茨基
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Machinery Manufacturing Center Design Bureau Jsc
Science and Innovations JSC
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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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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
    • 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
    • F04D13/0606—Canned motor 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • 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
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/057—Bearings hydrostatic; hydrodynamic
    • 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
    • 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
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/14—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load specially adapted for operating in water
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/24—Promoting flow of the coolant
    • G21C15/243—Promoting flow of the coolant for liquids
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/0633—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2237/00—Repair or replacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D1/00—Details of nuclear power plant
    • G21D1/04—Pumping arrangements
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

本发明是非驱动容积泵，可用于核电站的第一冷却回路‑主循环泵机组中的核电站(ZN)。主循环泵机组包括立式叶片式单级悬臂泵带有分布位置较低的工作轮子，泵的轴子与发动机的轴子由刚性离合器连接，安装在电动机上腔的径向‑轴向轴承由两部分构成：径向轴承制成旋转金属衬套的形式，安装在焊脊的圆柱部分上，焊脊用锥形装配安装在轴上，在电动机轴的上端用螺栓和压力凸缘固定，和减摩材料制成的定子衬套，和由两个定子止推环构成的轴向轴承，两个定子止推环带有抗磨材料制成的杠杆平衡系统和安装在焊脊平坦部分上的抗摩擦材料制成的转子板。来自核电站的水对径向轴向轴承进行冷却，水受到来自于位于焊脊轴向径向轴承上端的螺旋泵的升高压力，螺旋泵由带旋转负荷的定子和转子套筒组成。本发明的目的在于减少轴向轴承的负荷，增加其可靠性，减少轴向轴承的维修与更换时间。

Description

主循环泵机组
技术领域
所提出的技术创新涉及作用于液体的无排量容积泵，其工作元件可旋转运动,优先运用于主要循环泵装置中的核电站，作用于经过反应堆活性区的和核动力装置的冷却剂回路。
背景技术
主循环泵机组可靠性的主要组成部分是：
-主循环泵机组轴承摩擦的使用寿命，
-在核电厂运行过程中其可维护性，可使得消耗尽可能少的人力和时间来检查，修理和更换单个部件和零件。同时，主要循环泵装置的可维护性在很大程度上决定了轴承泵部件径向轴具有良好的可维护性。可减少工作人员在安装修理装置核电站现场附近的停留时间，以及在装配过程中减少消除放射性污染所需的量。
已知的主循环泵机组-1391，运用于具有VVER-1000和VVER-1200反应器的核电站机组。主循环泵机组-1391是指带有机械轴封的立式水泵机装置。泵装置由两个独立的部分组成-泵部件和电动机。泵部件的轴通过挠性片式离合器连接到电机机上，挠性片式离合器将电机机轴的扭转力矩传送到泵部件的轴上。泵部件的轴在两个独立的轴承中旋转。电机机轴在两个独立的径向轴承中，和一个检测电机转子重量的推力轴承中进行旋转。泵部件的下部径向轴承经工作介质水来润滑并冷却。泵部件的径向轴向轴承处于下部径向轴承和挠性联轴器之间。泵部件的径向轴向轴承用水冷却，组成为：径向轴承，其由金属转子衬套和减摩材料定子衬套，以及硅化石墨制成的减摩衬里的轴向轴承组成。
轴向轴承能感受到由以下作用产生的轴向力，包括：由液压外壳中工作介质的压力，轮上流体动力以及泵部件转子重量引起的向上推力。向上推力明显大于轮上的向下流体动力和泵部件轴转子的重量。由于轴承上的轴向负荷明显超过径向负荷，对主循环泵机组轴向减摩衬套的修理和检查比径向轴承的减摩衬套至少多2倍。为了修理和检查径向轴承，必须要：拆开套筒联轴器，拆卸电机，将径向轴承的外壳和元件一起拆下，然后运送到修理区。
这么一看，上述主循环泵机组结构的不足之处在于：
-用其他力来补偿作用在轴向轴承器上的向上推力是不够的；
-需要拆卸电机来修理和更换大多数耐磨轴承元件，特别是径向轴承的抗摩擦衬片。
还有已知的核电站轴的泵装置，具有刚性连接，[迷津可夫F.М.,诺维斯基E.G.,布多夫V.М.核电站主循环泵.–2个.处理和添加–莫斯科市:原子能出版物,1990,32-34页(图.2.5)]/
如图所示，泵和电动机的轴通过刚性离合器相互连接，设备有3个径向轴承，2个位于发动机上，另外一个位于泵上。泵上的轴承由工作环境润滑。根据该示意图为核电站《Loviisa》[这里从192-194页(图2.5)]研制了主循环泵机组。在这个主循环泵中，使用了一个用油润滑的轴向轴承。
这种结构的缺点是因为有润滑系统，会降低核电站的防火安全性。
发明内容
本发明的目的是把它安装在泵部件中，在主循环泵机组运行期间减小轴向轴承的负载，将电动机的转子和飞轮的重量转移到电动机的上部腔内，以补偿轴向力的推力，并用水给电动机的轴向和径向轴承提供润滑。另一目的是提高主循环泵机组的可维护性。
本发明的技术结果表现在以下几个方面：
-第一，减少轴承的负荷；
-第二，增强可靠性；
-第三，减少轴向轴承的修理时间和替换时间。
为解决所述问题，设计出了主循环泵机组，主要用于核电站使用轻水冷却剂的动力装置，主要包括：
立式叶片式单级悬臂泵，
有径向和轴向轴承的电动机，径向和轴向轴承安装在上腔室内，承受作用在设备轴子上的所有轴向负载，包括来自核电厂第一电路水压的压力，安装在径向-轴向轴承上端的内装式螺旋泵，
位于电动机转子底部的飞轮，用刚性离合器与泵的轴子连接的电动机的轴子。
安装在电动机上腔的径向-轴向轴承将由两部分构成：
径向轴承制成旋转金属衬套的形式，安装在焊脊的圆柱部分上，焊脊用锥形装配安装在轴上，在电动机轴的上端用螺栓和压力凸缘固定，和减摩材料制成的定子衬套，
和由两个定子止推环构成的轴向轴承，两个定子止推环带有抗磨材料制成的杠杆平衡系统和安装在焊脊平坦部分上的抗摩擦材料制成的转子板。
能够减少轴向轴承的修理时间和替换时间在于，电动机的上部腔制成易于拆卸的密封不锈钢容器的形式，可以通向径向轴承。
因此，为了修复和修理径向轴承，不需要拆卸主循环泵机组的电动机。
进入上部腔润滑轴承的水由螺杆泵增大压力，螺杆泵由带有螺纹的离合器制成，安装在焊脊的顶部，通过径向轴承加压冲洗，然后通过分流管进入安装在电动机下腔中的径向轴承。
附图说明
提议的设备(部分执行时)附图解释：
图1-主循环泵机组总视图；
图2--电动机上方腔室；
图3--电动机下方腔室。
具体实施方式
装有浆片的垂直单级悬臂式水泵(图1)在下部布置有叶轮1，其中泵轴2具有由工作介质冷却的下部径向轴承3，借助离合器5和电动机轴4连接，离合器在轴间传达扭转力矩及合成轴向力。在电动机上方腔室安装了径向-轴向轴承6，来感知所有作用在装置转子上的轴向负荷。在电机的下方腔室安装了电动机径向轴承7。飞轮8安装在电动机下部径向轴承的下方。
在主循环泵装置中的润滑水从核电站系统的远程冷却器通过导管9供应到电动机的上腔10。导管9通过法兰连接器11连接到上腔。上腔10是由不锈钢制成的圆柱形密封结构装置。上腔10包括外壳12(图2),通过螺栓连接元件，安装了径向-轴向轴承的定子元件以及水箱13,其为顶部封闭的圆柱体形式,底部有凸缘接口。该水箱可拆卸，通过螺栓14固定在外壳12上。
径向-轴向轴承的焊脊(套环)15通过锥形装配安装在电机轴上。焊脊15的紧固件借助于螺栓16和压力凸缘17连接到电机轴的上端。在焊脊15的平坦部分上安装有抗磨轴承板18，在焊脊15的圆柱形部分上安装有上径向轴承的旋转金属衬套19。焊脊顶部是带有螺纹的金属衬套20。该金属衬套20与固定在径向-轴向轴承的定子部分上的定子衬套21一同形成了在泵装置操作期间循环冷却流体的螺杆泵。径向轴承壳体22用螺栓固定在外壳12上。在径向轴承壳体22和焊脊15之间安装有上部锁定止推环23，由杠杆平衡系统和减摩材料衬板组成。在焊脊15和外壳12底部之间也有相同结构的下部止推环。
机械密封件24置于上腔的下面以防止水进入电动机的定子腔。从密封泄漏的物体进入排放管25，排放管25通过凸缘接口26与泄漏物集流管27(图1)连接上。
外壳12的下部焊接上排放支管28，上排放支管28通过凸缘接口29与过渡导管30连接，过渡导管30固定到电动机外壁上。
用于润滑轴承的水，在进入上腔时，来自螺旋泵的压力增加，螺旋泵由带螺纹的衬套形成并通过径向-轴向轴承压送，然后通过排放支管进入到过渡管道。通过凸缘接口31的过渡管道与焊接到下腔33的容纳管32(图3)连接。下腔的外壳是密封的圆柱形不锈钢结构，其上安装有电动机径向轴承7。上部端面密封垫34安装在外壳上方以防止泄漏到定子腔中。在外壳端面下方装有端面密封垫35以防止泄漏到定子腔中。电动机径向轴承7制成固定在电动机轴上的旋转金属衬套36和用抗磨材料制成的定子套筒37的形式,其固定在轴承外壳38上，自身借助于螺栓被连接到下腔33的外壳上。在螺旋泵压力水的作用，进入下腔的吸入口时，对下方径向轴承进行润滑并经由焊接的排放支管39(图1)从下方腔室排放到排放管40，该排放借助于凸缘接口41与排放支管连接。水流经排放管，被供应到核电站的远程冷却器。
修复和修理径向-轴向轴承时要卸开螺栓14并拆卸水箱13，卸开并拆卸径向轴承壳体22；拧下螺栓16，卸开压力凸缘17，卸开焊脊15和径向-轴向轴承的锁定止推环23。
因此，通过安装径向-轴向轴承来完成本发明中的提高可靠性的任务，润滑径向-轴向轴承的水不在泵部分，而在电动机的上腔，采用刚性离合器传递轴向力和扭矩。这允许使用电动机转子和飞轮的重量，以补偿浮力，并减小合力，从而减小轴承上的负载。

Claims (1)

1.一种主循环泵机组，包括立式叶片式单级悬臂泵，带有分布位置较低的叶轮(1)，位于叶轮(1)上方的泵轴(2)上并由泵送的介质润滑的下部径向轴承(3)，制成多级机械密封块的形式且位于下部径向轴承(3)上方的泵轴密封组件，安装在电动机径向轴承(7)下方的飞轮(8)，其特征在于：
泵轴(2)通过刚性离合器(5)与电动机轴(4)相连，
安装在电动机的上腔(10)中的径向-轴向轴承(6)由两部分构成：由第一旋转金属衬套(19)和减摩材料制成的第一定子衬套制成的径向轴承部分，第一旋转金属衬套(19)安装在焊脊(15)的圆柱部分上，焊脊(15)用锥形装配安装在电动机轴(4)上，在电动机轴(4)的上端用螺栓(16)和压力凸缘(17)固定；和由两个锁定止推环构成的轴向轴承部分，每个锁定止推环(23)带有抗磨材料制成的杠杆平衡系统和安装在焊脊平坦部分上的抗摩擦材料制成的转子板；
径向-轴向轴承(6)的冷却由来自核电站系统的水来实现，水由螺杆泵增大压力，螺杆泵位于径向-轴向轴承(6)的焊脊(15)的顶端，由带有螺纹的第二定子衬套(21)和第二旋转金属衬套(20)组成，
水从电动机的上腔(10)通过安装在电动机侧壁的管道进入电动机的下腔(33)，下腔是不锈钢制成的圆柱体形状，润滑电动机径向轴承(7)，电动机径向轴承由第三旋转金属衬套(36)和减摩材料制造的第三定子衬套(37)制成，
水从电动机的下腔(33)通过排放管(40)进入核电站系统中。
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190072134A1 (en) * 2017-09-06 2019-03-07 Air Products And Chemicals, Inc. Bearing Assembly
CN110336427B (zh) * 2019-06-26 2021-04-13 福建福清核电有限公司 一种用于核电站主冷却剂泵电机转子顶起的方法
RU2719546C1 (ru) * 2019-09-12 2020-04-21 Акционерное общество "Центральное конструкторское бюро машиностроения" (АО "ЦКБМ") Устройство для предотвращения повреждения торцовых уплотнений главного циркуляционного насосного агрегата
KR102268267B1 (ko) * 2020-12-30 2021-06-22 한전케이피에스 주식회사 원자로 냉각재 펌프축의 메커니컬 씰 세팅 지그 및 이를 이용한 메커니컬 씰 세팅 방법
CN113669262A (zh) * 2021-08-24 2021-11-19 龙菊蓉 一种用于冷却核能发电厂的取水装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1745547A (en) * 1925-05-04 1930-02-04 Layne & Bowler Corp Rotary pump mechanism
SU987190A1 (ru) * 1981-10-26 1983-01-07 Предприятие П/Я А-7569 Вертикальный герметичный насос
RU2041396C1 (ru) * 1992-02-04 1995-08-09 Опытное конструкторское бюро машиностроения Герметичный электронасос
CN2215627Y (zh) * 1995-04-14 1995-12-20 东北重型机械学院南校 新型液压离合器
US6208512B1 (en) * 1999-05-14 2001-03-27 International Business Machines Corporation Contactless hermetic pump
US6305915B1 (en) * 1999-11-08 2001-10-23 Itt Manufacturing Enterprises, Inc. Sealed steady bearing assembly for non-metallic vertical sump and process pumps
FR2801413B1 (fr) * 1999-11-24 2002-02-15 Jeumont Ind Pompe primaire d'un reacteur nucleaire refroidi par de l'eau sous pression et procede de reparation de l'arbre d'entrainement de la pompe
DE102005039033B3 (de) * 2005-08-18 2006-11-02 Atlas Copco Energas Gmbh Turbomaschine für Tieftemperaturanwendungen
NO330192B1 (no) * 2007-04-12 2011-03-07 Framo Eng As Fluidpumpesystem.
EP2290241A1 (en) * 2009-07-13 2011-03-02 Siemens Aktiengesellschaft Turbocompressor assembly with a cooling system
DE102009054773A1 (de) * 2009-12-16 2011-06-22 Piller Industrieventilatoren GmbH, 37186 Turboverdichter und Verdichteranlage umfassend einen derartigen Turboverdichter
EP2633197A4 (en) * 2010-10-27 2016-08-03 Dresser Rand Co MULTI-MOTOR DRIVER FOR A HERMETICALLY LIGHTED ENGINE COMPRESSOR SYSTEM
US9200643B2 (en) * 2010-10-27 2015-12-01 Dresser-Rand Company Method and system for cooling a motor-compressor with a closed-loop cooling circuit
BR112013030687A2 (pt) * 2011-06-01 2017-06-27 Dresser Rand Co sistema de arrfecimento motor-compressor submarino
KR101409881B1 (ko) * 2011-12-30 2014-06-20 두산중공업 주식회사 냉각재 펌프 조립체
JP5781013B2 (ja) * 2012-05-30 2015-09-16 敬史 亀井 溶融塩原子炉
CN202949323U (zh) * 2012-12-14 2013-05-22 哈尔滨电气动力装备有限公司 二代加核电厂主冷却剂泵电动机
CN102969835B (zh) * 2012-12-14 2015-02-25 哈尔滨电气动力装备有限公司 二代加核电厂主冷却剂泵电动机
FR3012183B1 (fr) * 2013-10-17 2018-03-02 Clyde Union S.A.S Motopompe centrifuge pour circuit primaire de petits ou moyens reacteurs modulaires nucleaires.

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