CN101321955A - 螺旋压缩机 - Google Patents

螺旋压缩机 Download PDF

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Publication number
CN101321955A
CN101321955A CNA2006800452708A CN200680045270A CN101321955A CN 101321955 A CN101321955 A CN 101321955A CN A2006800452708 A CNA2006800452708 A CN A2006800452708A CN 200680045270 A CN200680045270 A CN 200680045270A CN 101321955 A CN101321955 A CN 101321955A
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rotor
screw compressor
profile
rotors
rib
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CNA2006800452708A
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C·阿克特利克
D·休特曼
M·贝塞林
N·亨宁
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GHH Rand Schraubenkompressoren GmbH
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GHH Rand Schraubenkompressoren GmbH
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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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids 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
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • 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
    • F04C2220/00—Application
    • F04C2220/40—Pumps with means for venting areas other than the working chamber, e.g. bearings, gear chambers, shaft seals

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Supercharger (AREA)

Abstract

一种螺旋压缩机，具有带有螺旋形肋条(7’，9’)和凹槽的两个转子(7，9)，其相互接合并彼此密封。两个转子的肋条的总数最少为14，肋条的高度(H)不大于转子轮廓(7)和(9)的外径(Da)的0.15倍。转子的轴销具有不小于转子轮廓的外径(Da)的一半的直径。

Description

螺旋压缩机
本发明涉及一种螺旋压缩机(Schraubenkompressor)，其具有在转子壳体中平行于轴线且可旋转地安装的两个螺旋转子，每个螺旋转子都具有带有螺旋形肋条和凹槽的轮廓部分(Profilabschnitt)。转子利用其肋条和凹槽啮合地且密封地相互接合，在运行中输送并压缩在转子和转子壳体之间所包含的气体。
在设计这种类型的螺旋转子的轮廓时，到目前为止致力于在已知的转子轮廓外径情况下向在转子和转子壳体之间包括的待压缩的气体体积提供尽可能大的容积，这表示在体积上要尽可能地充分地利用转子轮廓。
相反，本发明的目的在于提供这样的螺旋压缩机，其适用于将气体压缩到非常高的压强，典型地在30至50bar范围内，并尤其可以运行该螺旋压缩机而作为多级(尤其是三级)压缩机单元的最后一级。在这种高压时，转子遭受在转子和壳体之间所包含的高压气体所产生的强横向力的作用，使得转子挠曲。这可能损害转子之间的密封并因此导致损失效率。由于转子的挠曲，也不可以那么小(如用于达到希望的较好的密封和较高的效率的那样)地限定在转子和转子壳体之间的径向缝隙。
因此，本发明的目的在于，提供一种适用于在较高压缩压强时运行的螺旋压缩机。
在权利要求1中给出该目根据本发明的解决方法。从属权利要求涉及本发明的其它有利实施例。
已经发现，在权利要求中给出的转子的设计导致在转子的抗弯曲强度和在转子的螺旋凹槽中包括的压缩气体体积(其造成挠力)的大小之间的尤其有利关系。
参考附图详细说明本发明的实施例。
其中，显示了；
图1是根据本发明的螺旋压缩机的局部截面图。
图2根据图1的螺旋压缩机的转子的透视图。
图3是在垂直于轴线的截面中的两个转子的转子轮廓。
在图1中作为实施示例而显示的螺旋压缩机具有以截面形式描述的转子壳体1，其中两个转子3和5平行于轴线而可旋转地安装。转子3，5的旋转轴线位于共同的竖直平面中，该竖直平面也是用于描述转子壳体1的截面。每个转子都具有轮廓部分7和9，其具有带有螺旋形肋条和凹槽的轮廓，其中肋条和凹槽将这两个轮廓部分7，9彼此接合。在轮廓部分7，9上连接有轴销7a，7b，9a，9b，其表面与密封环11共同作用，以将转子密封在转子壳体1中。此外，轴销7a，7b，9a，9b通过轴承13，15可旋转地安装在转子壳体1中。
在图1中的上转子3是主转子，并且在其图1中的左端具有其轴销的延长部7c，其用于容纳主动齿轮(未显示)，该主动齿轮与传动装置(未显示)的相应齿轮相接合，以驱动转子3旋转。在图1中的右端上两个转子3，5具有两个彼此接合的齿轮17，19，其构成同步传动装置，该装置以所希望的转速比把上转子的旋转传递到作为次级转子的下转子5上，并且为转子的轮廓部分7，9提供无接触接合。
所述螺旋压缩机优选地是干式运行的，这表示用于润滑、冷却或密封的油没有引入密封空间。转子轮廓无接触接合但彼此密封。这对于所有取决于压缩气体的完全无油的应用而言是有利的。油仅仅引入密封空间的外部，这表示在通过密封件1 1密封的区域的外部，例如为了润滑传动装置(未示出)而引向轴承13，15和同步传动装置17，19。
在图2中单独显示了图1的螺旋压缩机的两个转子3，5。由图2可知，作为主转子的转子3具有轮廓部分7，其轮廓由六个螺旋形肋条7′构成。作为次级转子的下转子5具有轮廓部分9，其轮廓由八个螺旋形肋条9′构成。因此，两个转子的螺旋形肋条7’，9’的总数，即″齿数″的总数总计为14。
此外，在图2中显示了连接到各转子3，5的轮廓部分7和9的两侧的轴销的区域7a，7b，9a，9b，其直径(D，D′)大于各轮廓部分的外径的一半。
图3显示了在垂直于轴线的截面中的两个转子轮廓部分7，9。主转子的轮廓7具有6个螺旋形肋条7′，其通过凹槽7″彼此分离。肋条7′的顶面位于直径为Da的轮廓的外包络圆Ka上。凹槽7″的底面位于具有直径Di的内圆Ki上。圆Ka和Ki之间的径向距离称为肋条高度或齿高度H。其不大于，优选地小于外圆Ka的直径Da的0.15倍。这对于八个肋条9′和将其分离的下转子(次级转子)9的凹槽9″也适用，也就是说这里的齿高度H也不大于轮廓外径Da的0.15倍。
在图1中所示的螺旋压缩机运行时，其吸入室10(其构造成在转子壳体1中紧邻轮廓部分7，9在图1中的左端)引入待压缩的气体，尤其是空气，该气体优选地已经由一个或多个预接通的压缩机级(未显示)压缩到中间压强，例如压缩在10至15bar范围内，优选地是12bar。该预压缩的气体通过两个转子3，5的轮廓部分7，9在图1中向右输送至出口(未显示)，并同时压缩到最终压强，其优选地位于30至50bar范围内，尤其是大约40bar。螺旋压缩机的转子设计成，其在较大程度上对于由压缩气体在较高压强下产生的横向力不敏感。

Claims (4)

1.一种螺旋压缩机，其带有两个可旋转地安装并可沿相反方向驱动的转子(3，5)，所述转子(3，5)在沿其长度的部分上具有带螺旋形肋条(7′，9′)和凹槽的轮廓(7，9)，并且利用所述肋条和所述凹槽啮合地且密封地相互接合，其特征在于，所述两个转子的螺旋形肋条(7′，9′)的总数最少为14。
2.根据权利要求1所述的螺旋压缩机，其中一个转子是主转子(3)而另一个转子是次级转子(5)，其特征在于，所述主转子的轮廓(7)具有六个肋条(7′)而所述次级转子的轮廓(9)具有八个肋条(9′)。
3.根据权利要求1或2所述的螺旋压缩机，其特征在于，各所述转子(3，5)的肋条高度不大于所述转子轮廓外径(Da)的0.15倍。
4.根据权利要求1至3中任一项所述的螺旋压缩机，其中各所述转子具有邻近轮廓部分的轴销(7a，7b，9a，9b)，其特征在于，各所述轴销的直径(D，D′)在邻近所述轮廓部分(7，9)的区域中不小于所述轮廓外径(Da)的一半。
CNA2006800452708A 2005-12-08 2006-06-09 螺旋压缩机 Pending CN101321955A (zh)

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DE102005058698 2005-12-08
DE102005058698.8 2005-12-08

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CN200680045196XA Expired - Fee Related CN101321954B (zh) 2005-12-08 2006-06-09 多级螺旋压缩机单元

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US (4) US20080286129A1 (zh)
EP (4) EP1957798B1 (zh)
CN (2) CN101321955A (zh)
AT (1) ATE498071T1 (zh)
DE (1) DE502006008894D1 (zh)
ES (1) ES2359015T3 (zh)
HK (1) HK1127111A1 (zh)
WO (4) WO2007065485A1 (zh)

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DE502006008894D1 (de) 2011-03-24
HK1127111A1 (en) 2009-09-18
EP1957797A1 (de) 2008-08-20
WO2007065486A1 (de) 2007-06-14
US20080286138A1 (en) 2008-11-20
CN101321954A (zh) 2008-12-10
US20130011285A1 (en) 2013-01-10
EP1979618A1 (de) 2008-10-15
ATE498071T1 (de) 2011-02-15
WO2007065484A1 (de) 2007-06-14
ES2359015T3 (es) 2011-05-17
EP1957797B1 (de) 2016-09-28
US9091268B2 (en) 2015-07-28
EP1979618B1 (de) 2016-04-27
EP1957798A1 (de) 2008-08-20
EP1957798B1 (de) 2011-02-09
WO2007065487A1 (de) 2007-06-14
CN101321954B (zh) 2012-06-13
WO2007065485A1 (de) 2007-06-14
US7690901B2 (en) 2010-04-06
US7713039B2 (en) 2010-05-11
US20080286129A1 (en) 2008-11-20
US20090004036A1 (en) 2009-01-01

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