CN1882775A - 具有隔板的压缩机排气腔 - Google Patents

具有隔板的压缩机排气腔 Download PDF

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CN1882775A
CN1882775A CNA200480033934XA CN200480033934A CN1882775A CN 1882775 A CN1882775 A CN 1882775A CN A200480033934X A CNA200480033934X A CN A200480033934XA CN 200480033934 A CN200480033934 A CN 200480033934A CN 1882775 A CN1882775 A CN 1882775A
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compressor
exhaust cavity
exhaust
dividing plate
compression chambers
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CN1882775B (zh
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M·A·丹尼尔斯
L·G·特图
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Carrier Corp
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Carrier Corp
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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
    • F04C18/12—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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses
    • 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
    • F04C29/06—Silencing
    • 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
    • F04C29/06—Silencing
    • F04C29/068—Silencing the silencing means being arranged inside the pump housing
    • 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
    • F04C18/165—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 having more than two rotary pistons with parallel axes
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/102—Geometry of the inlet or outlet of the outlet
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S181/00—Acoustics
    • Y10S181/403—Refrigerator compresssor muffler

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

一种螺杆式压缩机，其设置有接受来自位于该螺杆式压缩机的相反侧上的两个压缩腔(32)的经压缩的交变流体流的排气腔(33)。该排气腔(33)设置有中心隔板(36)以便分隔成两个流动。隔板(36)改变该系统的流体频率，并且确保该流体系统不以接近整体压缩机的固有频率的频率来运行，这样降低了不希望的振动。该隔板还降低了脉动的幅度和所产生的噪音。

Description

具有隔板的压缩机排气腔
技术领域
本发明涉及在具有多个循环排气流的压缩机中，将压缩机排气腔分成多个子腔的隔板的使用。
背景技术
可使用多种类型压缩机来压缩各种流体。在其中一种常用类型的压缩机中，来自压缩腔的经压缩的流体流在多个压缩腔内循环地形成。作为示例，在具有三个转子的螺杆式压缩机中，在一个中心螺杆与两个侧螺杆之间形成有两个压缩组。这些压缩组周期性地将压缩后的制冷剂经排气端口排出到排气腔内。这些端口在压缩腔的相反的侧上。如果采用单个压缩腔，在压缩腔内可能出现工况的循环脉动。这种压缩排气结构的一个示例由名称为“Housing for ScrewCompressor”的美国专利No.6,488,480披露。
在这种三个螺杆的压缩机中，循环性排气在压缩速度处于压缩机的运行速度的期望范围内的情况下使得流体频率接近整体压缩机的机械固有频率。当这两个频率彼此接近时，产生不可接受的振动。另外，在这种现有的压缩机中，脉动的幅度和所产生的噪音是不希望的。
发明内容
在本发明的所披露的实施例中，压缩机将经压缩的流体输送到在排气腔中心线的相反的侧上的排气端口。该排气腔设置有在两个端口之间的分隔隔板。在优选实施例中，压缩机是三螺杆式压缩机，并且隔板基本上定位成沿排气腔的中心线。在另外的特征中，排气腔是大致截头锥形的，并且从上游位置渐缩到下游区域，中心板也具有该大致相同的渐缩特征。
附图说明
参照对优选实施例的下列描述并结合附图，可以更好地理解本发明的这些和其它的特征，在附图中：
图1示出了应用本发明的压缩机；
图2示出了依据本发明的排气腔的端视图；
图3是示意截面图；和
图4是示意端视图。
具体实施方式
图1示出了具有壳体21的压缩机系统20，该壳体容纳有中心驱动螺杆22和两个相对的螺杆24和26。排气板28接受来自压缩腔32的经压缩的制冷剂并且将该经压缩的制冷剂经该板28中的排气端口(在图1中未示出)输送到出口壳体34中的排气腔33内。已知的是，制冷剂从入口端口30送入，并且在螺杆22和24之间以及在螺杆22和26之间朝向排气端口32压缩。已知的是，隔板36大致定位在排气腔33的中部。排气腔33的尺寸随出口壳体34的内周表面34逐渐缩小。如上所述，在没有隔板36的情况下，有时可能在压缩机20中出现不希望的振动、噪音和脉动。隔板36用于改变系统的流体频率，以便使得在压缩机20的正常运行范围内不出现上述的振动。另外，还可显著地降低脉动的幅度和噪音。
如图2所示，隔板36通常将排气腔33分为两半。如图所示，设置有与压缩腔32相关的排气端口132，其如上所述地延伸穿过排气板28。
如图3示意地所示，排气腔33具有隔板36，并且该隔板36具有“渐缩”的形状，或者如附图标记38所示地具有大致截头锥形的形状。如图所示，渐缩部38的上游端41装接到排气板28上，并且下游端42连接到出口管40上。尽管图3将附图标记38表示的形状简化为截头锥形，但是实际的形状可以是图1所示的大致曲线形状。由视图彼此大致垂直的图1和图3的组合中应当理解，排气腔33的“渐缩”是沿两个维度产生的，而不是仅仅存在于两个截面中的一个截面中。
图4示出了将排气腔33二等分的隔板36。此刻，借助隔板36的使用，流体流动的频率在压缩机20的任何预期的运行范围内不会接近压缩机结构的固有频率。因此，不会出现上述的不希望的振动。另外，也降低了脉动的幅度。
尽管本发明最优选地应用于螺杆式压缩机，但是本发明也可应用于成组的排气端口设置在压缩机的相反的侧上的其它类型的压缩机。当然，使用隔板将单个排气腔分隔开的技术构思可扩展到具有两个以上排气腔的压缩机。另外，即使在设置有两个压缩腔的情况下，也可采用一个以上的隔板以便提供对于流体频率更强的控制。
尽管已经描述了本发明的优选实施例，但是本领域的普通技术人员应当理解在本发明的范围内还可作出特定的变型。因此，以下的权利要求确定了本发明的实际范围和内容。

Claims (7)

1.一种压缩机，其包括：
压缩机泵送单元，其用于接收待被压缩的流体，并压缩该流体，该压缩机单元具有至少两个压缩腔，所述两个压缩腔将经压缩的制冷剂输送到限定在排气壳体内的单个排气腔中；和
在该排气腔中的至少一个隔板，其定位在所述两个压缩腔之间。
2.如权利要求1所述的压缩机，其特征在于，该隔板将该排气腔大致二等分。
3.如权利要求2所述的压缩机，其特征在于，该压缩机泵送单元是螺杆式压缩机，其中具有中心驱动螺杆和两个侧螺杆，所述两个压缩腔限定在该中心螺杆与每一所述侧螺杆之间。
4.如权利要求1所述的压缩机，其特征在于，该排气腔的截面面积从靠近该压缩腔的上游端朝向下游端减小。
5.如权利要求1所述的压缩机，其特征在于，该压缩腔使得经压缩的流体输送经过排气板中的排气端口，并输送到该单个排气腔内，所述排气端口定位在该隔板的相反的侧上。
6.一种压缩机，其包括：
螺杆式压缩机，其用于接收待被压缩的流体，并压缩该流体，该螺杆式压缩机单元具有至少两个压缩腔，每一所述压缩腔限定在中心驱动螺杆与相对的侧螺杆中的一个侧螺杆之间，所述两个压缩腔使得经压缩的制冷剂输送到限定在排气壳体内的单个排气腔中，该压缩腔使得经压缩的制冷剂输送经过具有相关排气端口的排气板并进入该单个排气腔；和
在该排气腔中的隔板，其定位在所述两个压缩腔之间，并且该隔板将该排气腔大致二等分。
7.如权利要求6所述的压缩机，其特征在于，该排气端口的截面面积从靠近该压缩腔的上游端朝向下游端减小。
CN200480033934XA 2003-11-17 2004-11-10 具有隔板的压缩机排气腔 Expired - Fee Related CN1882775B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/715,200 2003-11-17
US10/715,200 US6976833B2 (en) 2003-11-17 2003-11-17 Compressor discharge chamber with baffle plate
PCT/US2004/037554 WO2005047693A1 (en) 2003-11-17 2004-11-10 Compressor discharge chamber with baffle plate

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CN1882775A true CN1882775A (zh) 2006-12-20
CN1882775B CN1882775B (zh) 2011-06-08

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US (1) US6976833B2 (zh)
EP (1) EP1700037B1 (zh)
JP (1) JP2007528960A (zh)
KR (1) KR100838424B1 (zh)
CN (1) CN1882775B (zh)
ES (1) ES2548566T3 (zh)
HK (1) HK1101710A1 (zh)
WO (1) WO2005047693A1 (zh)

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US6976833B2 (en) 2005-12-20
EP1700037A4 (en) 2010-01-13
KR20060069888A (ko) 2006-06-22
HK1101710A1 (en) 2007-10-26
CN1882775B (zh) 2011-06-08
KR100838424B1 (ko) 2008-06-16
ES2548566T3 (es) 2015-10-19
EP1700037B1 (en) 2015-09-09
WO2005047693A1 (en) 2005-05-26
US20050106054A1 (en) 2005-05-19
EP1700037A1 (en) 2006-09-13
JP2007528960A (ja) 2007-10-18

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