CN106286280B - 螺杆式潜水泵 - Google Patents

螺杆式潜水泵 Download PDF

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CN106286280B
CN106286280B CN201610813945.4A CN201610813945A CN106286280B CN 106286280 B CN106286280 B CN 106286280B CN 201610813945 A CN201610813945 A CN 201610813945A CN 106286280 B CN106286280 B CN 106286280B
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screw rod
screw
cavity
pressure regulating
shaft
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CN106286280A (zh
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Anguo Gaoke Water Pump Co.,Ltd.
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps

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

Abstract

本发明涉及一种螺杆式潜水泵，包括具有螺杆腔体的壳体，设置于螺杆腔体内的一组螺杆，螺杆下端连接有进水道，上端连接有出水道，螺杆轴前后两端由轴承支撑，螺杆轴通过传动机构联接第一电机，螺杆轴后端的壳体上设置有调压腔，螺杆轴后端插入该调压腔内，调压腔与螺杆轴的间隙处嵌入有密封填料，螺杆腔体的上部沿周壁开设环形槽，环形槽与调压腔通之间通过管路连通。本发明将螺杆泵前端的水压引入至螺杆轴的后端，将螺杆轴向上推，来对抗螺杆所受到的强大的后坐力，使螺杆轴的受力较为平衡，从而降低轴承的载荷，降低轴承的磨损，延长潜水泵的使用寿命，以及为进一步提高螺杆泵转速提供了保障。

Description

螺杆式潜水泵
技术领域
本发明涉及一种潜水泵，特别是一种螺杆式潜水泵的工作方法。
背景技术
潜水泵是是深井提水的重要设备，被广泛的使用于工农业。
一般来讲，根据排水原理可将水泵分为：一、叶轮式泵，如：离心泵、混流泵、轴流泵等、旋流泵；二、容积泵，如：柱塞泵、齿轮泵、螺杆泵、叶片泵等；三、其他类型，如：射流泵、水锤泵等。
螺杆泵属于容积泵，扬程高单流量少，特别适合与疏松粘稠液体。当螺杆高速旋转时，后端轴承受到较大压力，加速磨损，同时也限制了螺杆泵的转速。轴承所受压力主要来自于螺杆的反作用力，而对于一台螺杆潜水泵而言，该反作用力主要由转速和出口端压力决定。当需要高转速时，理想的解决办法是降低出口端的压力来实现。然而，面对大扬程的需求，降低出口端压力成为了难题。
发明内容
本发明的目的在于：克服上述现有技术的缺陷，提出一种螺杆式潜水泵的工作方法。
为了达到上述目的，本发明提出的螺杆式潜水泵，包括具有螺杆腔体的壳体，设置于螺杆腔体内的一组螺杆，所述螺杆下端连接有进水道，上端连接有出水道，螺杆轴前后两端由轴承支撑，螺杆轴通过传动机构联接第一电机，其特征在于：所述螺杆轴后端的壳体上设置有调压腔，所述螺杆轴后端插入该调压腔内，调压腔与螺杆轴的间隙处嵌入有密封填料，所述螺杆腔体的上部沿周壁开设环形槽，所述环形槽与调压腔之间通过管路连通。所述的工作方法包括：将螺杆泵前端的水压引入至螺杆轴的后端，将螺杆轴向上推，来对抗螺杆所受到的强大的后坐力，使螺杆轴的受力平衡。
本发明螺杆式潜水泵，进一步的改进在于：
1、所述进水道的内壁具有螺旋形结构。
2、所述管路上设置有缓冲腔室，所述缓冲腔室的体积不低于调压腔总体积的10倍。
3、所述缓冲腔室靠近环形槽一端设置。
本发明将螺杆泵前端的水压引入至螺杆轴的后端，将螺杆轴向上推，来对抗螺杆所受到的强大的后坐力，使螺杆轴的受力较为平衡，从而降低轴承的载荷，降低轴承的磨损，延长潜水泵的使用寿命，以及为进一步提高螺杆泵转速提供了保障。
靠近环形槽一端设置缓冲腔室能够降低环形槽输出水流的高速抖动，确保调压腔内具备较稳定的压强，杜绝轴承抖动的发生。
附图说明
下面结合附图对本发明作进一步的说明。
图1是本发明螺杆式潜水泵结构示意图。
图中标号示意如下：
1-螺杆腔体，2-壳体，3-螺杆，4-进水道，5-出水道，6-螺杆轴，7-轴承，8-传动机构，9-第一电机，15-调压腔，16-管路，17-缓冲腔室，18-环形槽。
具体实施方式
下面结合附图和具体实施例对本发明做进一步说明。
如图1所示，为本发明螺杆式潜水泵，包括具有螺杆腔体1的壳体2，设置于螺杆腔体内1的一组螺杆3，螺杆3下端连接有进水道4，上端连接有出水道5，进水道4的内壁具有螺旋形结构，螺杆轴6前后两端由轴承7支撑，螺杆轴6通过传动机构8联接第一电机9，螺杆轴6后端的壳体上设置有调压腔15，螺杆轴6后端插入该调压腔内15，调压腔15与螺杆轴6的间隙处嵌入有密封填料，螺杆腔体1的上部沿周壁开设环形槽18，环形槽18与调压腔15之间通过管路16连通，管路16上靠近环形槽18一端设置有缓冲腔室17，缓冲腔室17的体积不为调压腔15总体积的10倍。
除上述实施例外，本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案，均落在本发明要求的保护范围。

Claims (1)

1.一种螺杆式潜水泵的工作方法，包括具有螺杆腔体的壳体，设置于螺杆腔体内的一组螺杆，所述螺杆下端连接有进水道，上端连接有出水道，螺杆轴前后两端由轴承支撑，螺杆轴通过传动机构联接第一电机，其特征在于：所述螺杆轴后端的壳体上设置有调压腔，所述螺杆轴后端插入该调压腔内，调压腔与螺杆轴的间隙处嵌入有密封填料，所述螺杆腔体的上部沿周壁开设环形槽，所述环形槽与调压腔之间通过管路连通；
所述的工作方法包括：将螺杆式潜水泵前端的水压引入至螺杆轴的后端，将螺杆轴向上推，来对抗螺杆所受到的强大的后坐力，使螺杆轴的受力平衡。
CN201610813945.4A 2014-07-29 2014-07-29 螺杆式潜水泵 Active CN106286280B (zh)

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CN106401946A (zh) 2017-02-15
CN106286280A (zh) 2017-01-04
CN104196718A (zh) 2014-12-10
CN106246535A (zh) 2016-12-21
CN104196718B (zh) 2016-10-12
CN106286281B (zh) 2018-05-18
CN106286281A (zh) 2017-01-04

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