CN101040119A - 压缩机消声器 - Google Patents
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Abstract
一种具有第一转子和第二转子的压缩机,其中相互啮合的第一转子和第二转子分别绕第一和第二轴线旋转用以将制冷剂泵送至排气增压室。这种压缩机包括由吸音的第一元件和吸音的第二元件构成的消声器系统。第二元件至少部分地包围第一元件,并在第一元件和第二元件之间形成大致环形的流路部分。第一元件和第二元件的至少其中一个包括发泡珠粒材料。
Description
相关申请的交叉引用
本申请是2004年10月20日提交的题为“压缩机噪声抑制”的PCT专利申请No.PCT/US04/34946的部分继续申请。
发明领域
本发明涉及压缩机。更具体地说,本发明涉及螺杆式压缩机中的噪音和振动抑制。
在容积式压缩机中,断续的气体在吸气压力被截留;进行压缩;然后在排气压力排出。气体的截留和排放都会生产压力脉冲以及相关的噪音。因此,需要对压缩机噪声抑制方面进行深入研究。
一种吸收式消声器涉及使压缩机工作元件排出的制冷剂流经环形内外层吸声材料(比如纤维絮或泡沫)之间的环形间隙。美国专利申请书公布号2004/0065504 A1公开了这样一种在内层中设有整体式亥姆霍兹共鸣器的基本消声器及其改进型。该专利的公开内容通过引用而结合于本文中。
发明概述
因此,本发明的一个方面涉及一种具有第一转子和第二转子的压缩机,其中相互啮合的第一转子和第二转子分别绕第一和第二轴线旋转,用以将制冷剂泵送至排气增压室。压缩机包括由第一吸声元件和第二吸声元件构成的消声器系统。第二元件至少部分地包围第一元件,并在第一元件和第二元件之间形成大致环形的流路部分。第一元件和第二元件的至少其中一个包括发泡珠粒材料。
在许多不同的实施例中,第一元件和第二元件的至少其中一个包括多个多孔的发泡聚丙烯环。沿着第一元件和第二元件总纵向跨度的大部分,第一元件和第二元件的内侧和外侧表面基本上是不会聚和不发散的。消声器系统可以包括在第一元件和第二元件之间的穿孔金属片第一套筒以及固定在第一套筒上的第一金属丝加强件。第一套筒可以位于大致环形的流路部分的内侧边界。穿孔金属片第二套筒可以位于大致环形的流路部分的外侧边界,且第二金属丝加强件固定在第二套筒上。
本发明的另一个方面涉及一种压缩机消声器元件。这种元件包括用发泡珠粒材料制成的多个环的叠组。
在许多实施例中,发泡珠粒材料可以是多孔的发泡聚丙烯。带有小孔的金属套筒可以同心地布置在环内或包围环。螺旋金属加强件可以固定在套筒的第一表面上。加强件可以与元件的相邻表面接触。象这样的第一元件可以是外部元件,而象这样的第二元件可以是内部元件,第二元件至少部分地嵌套在第一元件内,用以在第一元件的内表面和第二元件的外表面之间构成流路段。象这样的第一元件和第二元件可以用金属间隔件隔开,而象这样的第三元件可以是一内部元件,第三元件至少部分地嵌套在第一元件和第二元件内,用以在第一元件的内表面和第二元件的外表面之间构成流路段。
在附图以及下面的说明书中阐述了本发明一个或多个实施例的细节。从说明书和附图以及所附权利要求中,本发明的其它特征、目的、和优点将变得更加清楚。
附图说明
图1是压缩机的纵向剖视图;
图2是图1中压缩机的消声器的纵向剖视图;
图3是图2中消声器的下游端视图;
图4是图2中消声器的第一金属子组件的纵向剖视图;
图5是图2中消声器的第二金属子组件的纵向剖视图;
在各附图中,相同的标号和符号表示类似的部件。
详细描述
图1示出了具有壳体或外壳组件22的压缩机20。示例性的压缩机是一种三转子螺杆式封闭压缩机,具有转子26、28和30以及相应的中心纵轴线500、502和504。在此示范实施例中,第一转子26是由同轴电动机32驱动的阳瓣转子,它又与阴瓣转子28、30啮合并驱动它们。在此示范实施例中,阳转子轴线500还构成整个压缩机20的中心纵轴线。转子工作部分位于外壳组件22的转子外壳段34内并且可以由轴承36来支承并由密封即38来进行密封,密封件38在相关联转子工作部分的每一端与转子轴密封接合。当由电动机32驱动时,转子沿着从吸气增压室(plenum)40到排气增压室42的流路而泵送并压缩工作流体(比如制冷剂)。流路沿着由吸气增压室和排气增压室之间的相关联转子对形成的不同压缩囊或压缩路径被分开。因此,气流在吸气增压室中分开,而在排气增压室中合并。
在此示范实施例中,吸气增压室40位于转子外壳34的上游端内,而排气增压室大致位于排气外壳46内,排气外壳46与转子外壳被轴承套48隔开,并具有大致朝下游会聚的内表面49。在此示范实施例中,轴承盖/护圈板50安装在轴承套48的下游端用以固定轴承组。排气外壳46的下游设有位于消声器外壳54中的消声器52。消声器52的下游是油分离器单元60,其外壳62中装有分离器网筛64。回油管道66从外壳62延伸出来,用以使被网筛64阻止的油返回到润滑系统(未示出)。具有排出端口69的出口增压室68位于网筛64的下游。
示例性的主消声器52包括环形的内、外元件70和72,它们由大致环形的间隙74隔开。这些部件可以用吸音材料制成。在此示范实施例中,内部元件70由带有小孔的内套筒76(比如金属丝网或穿孔/多孔拉制的金属片)固定并与间隙74隔开,而外部元件72类似地由带有小孔的外套筒78隔开和固定。在此示范实施例中,外部元件72被包在可伸缩地容纳在外壳54中的外套筒80内。套筒80和78在上游和下游端通过环形板82和84相连。在此示范实施例中,套筒76的上游端由圆形板86封闭,而下游端由环形板90封闭。在此示范实施例中,不带小孔的中心管94(比如钢管)从内部元件70中穿过并突出到它的下游端以外。在主消声器的上游端,沿径向延伸的连接件96将圆形板86与环形板82连接起来。在下游端,沿径向延伸的连接件98将环形板84和90连接起来,使内、外元件保持同心间隔开的布置,以维持环形间隙74。
在工作时,压缩气流离开螺杆式转子26、28、30的压缩腔而流入排气增压室42。在离开压缩机的排气增压室之后,气体流到环形间隙74。在离开消声器之后,一般来说夹带油滴的气流流经油分离网筛64。网筛64捕获气体中夹带的任何油滴,并使其通过管道66返回到油管理系统。气体离开油分离筛并进入增压室68,然后从出口69离开而流向冷凝器(未示出)。
图2示出了主消声器52的更多细节。内、外元件的吸音材料分别由示例性的泡沫状环110和112A、112B的叠层形成。示例性的环110形成单个叠层(比如包括九个同样的环)。示例性的环112A和112B是相同的,但分为上游叠层和下游叠层布置。示例性的环材料是发泡聚丙烯珠粒(比如被称作多孔的发泡聚丙烯(PEPP)的材料)。
示例性的套筒80沿着环叠层被分为上游段80A和下游段80B。示例性的套筒78类似地形成了上游段78A和下游段78B。示例性的套筒段78A和78B在其外侧表面上沿圆周方向用金属螺旋加强件114A和114B来加强。类似地,套筒76沿着其内侧表面可以用金属螺旋件116加强。
在示例性的消声器中,两组外环叠层112A和112B用间隔件118隔开,间隔件118由一对环形板120和122构成。在该示例性的消声器中,环形板82、84、120和122中的每一个固定在相关联的内侧和外侧短金属环126和128上,金属环126和128分别在靠近环112A或112B的内侧和外侧处部分地延伸,以形成沿纵向开口的环形槽。
在一示范性的消声器组件中,环形板82、84、120和122焊接到与它们相关联的环126和128上。套筒段78A和78B的下游端部和上游端部分别可伸缩地插入相应环形板120和122及其相关联的内侧环126的中心孔眼中,并焊接到那里。然后可以将加强件114A和114B缠绕在套筒段78A和78B的周围,并将它们焊接到那里。接着可以将套筒段80A和80B安装在环形板120和122及其相关联外环128的上面并焊接到那里,以形成环形腔室128A和128B(图4)。然后可以将所得到两个子组件头尾相连焊接起来(比如使环形板120的下游面与环形板122的上游面接触),以形成外部元件金属组件130(图4)。
还可以形成内部元件金属组件132(图5)。管94可以焊接到圆形板86的下游面上。套筒76的上游端部分可以放置在圆形板86的外周缘上面,并焊接到那里。连接件96可以焊接到环形板82的上游面以及圆形板86的上游面上,用以使圆形板86在环形板82及其相关联的环内同心地布置。加强件116可以插入在套筒76内并焊接到那里。套筒76的直径与套筒78相比较小,因而可以使套筒76具有更大的结构整体性。所以,套筒76可能只需要较少的加强。而且,加强件最好设置在间隙74的相反一侧,以免过度限制制冷剂的流动。这样的位置要求将加强件116布置在套筒76内,因此比安置在外部增加了焊接难度。这种困难性以及较小的必要性使得加强件116具有低得多的成本/效益值而可以被省略掉。在准备好这两个金属组件之后,最后就可以将消声器组装起来。将环112A的叠层插入第一环形腔室128A内。可以将一个或多个绝缘体环136(比如在弹性粘合剂(如氯丁橡胶或丁腈橡胶)中的非石棉、非金属的合成材料)安装在叠层的顶上或者安装在由环形板82及其相关联环形成的环形槽134(图5)内,所述绝缘体环比如可以是纽约Palmyra的Garlock密封科技公司生产的商标为BLUE-GARD 3300的产品。接着可以将组件130安装到组件132上,使环形板82及其相关联的环容纳在套筒78A和80A的上游部分中。然后可以将套筒焊接到环形板上。在此焊接过程中,绝缘体环136可防止最上游的环112A受到热损伤。然后可以将环112B插入腔室128B中。还可以将环110安装在套筒76内的管94上。然后,可以将下游端组件安置就位(绝缘体环136比如是预先安装的)。示范性的固定方法包括,将环形板90的内孔焊接到管94上,并将环形板84的外周缘部分焊接到套筒80B的下游端部。
已经介绍了本发明的一个或多个实施例。然而,应当认识到,在不脱离本发明精神和范围的情况下,可以作出各种修改。举例来说,在重新设计或重新制造的情况下,现有压缩机中的细节可能会具体影响或规定实施的细节。因此,其它一些实施例也在所附权利要求的范围之内。
Claims (12)
1.一种压缩机,包括:
具有第一旋转轴线的第一转子;
具有第二旋转轴线并与所述第一转子啮合的第二转子;
排气增压室;和
消声器系统,包括:
吸音的第一元件;和
吸音的第二元件,其至少部分地包围所述第一元件,并
在所述第一元件和所述第二元件之间形成大致环形的流路部分,
其中,所述第一元件和第二元件的至少其中一个包括发泡珠粒材料。
2.根据权利要求1所述的压缩机,其特征在于:
所述第一元件和第二元件的至少其中一个包括多个多孔的发泡聚丙烯环。
3.根据权利要求1所述的压缩机,其特征在于:
沿着所述第一元件的总纵向跨度的大部分,所述第一元件的内侧和外侧表面基本上是不会聚和不发散的;且
沿着所述第二元件的总纵向跨度的大部分,所述第二元件的内侧和外侧表面基本上是不会聚和不发散的。
4.根据权利要求1所述的压缩机,其特征在于:
所述消声器系统包括在所述第一元件和第二元件之间的穿孔金属片第一套筒,以及固定在所述第一套筒上的第一金属丝加强件。
5.根据权利要求4所述的压缩机,其特征在于:
所述第一套筒位于所述大致环形的流路部分的内侧边界;且
穿孔金属片第二套筒位于所述大致环形的流路部分的外侧边界,且第二金属丝加强件固定在所述第二套筒上。
6.一种压缩机消声器元件,包括:
用发泡珠粒材料制成的多个环的叠组。
7.根据权利要求6所述的压缩机消声器元件,还包括组合在一起的以下部件:
包括以下部件中至少其中一个的金属组件:
在所述环孔眼内延伸的带有小孔的套筒;和
包围所述环周缘的带有小孔的套筒;和
在其中一个所述环的端部与所述金属组件的焊接部分之间的非石棉、非金属绝缘体。
8.根据权利要求6所述的压缩机消声器元件,其特征在于:
所述发泡珠粒材料是多孔的发泡聚丙烯。
9.根据权利要求6所述的压缩机消声器元件,还包括组合在一起的以下部件:
同心地布置在所述环内或包围所述环的带有小孔的金属套筒;和
固定在所述套筒的第一表面上的螺旋金属加强件。
10.根据权利要求9所述的组合件,其特征在于:
所述加强件与所述元件的相邻表面接触。
11.一种压缩机消声器,包括:
作为外部元件的如权利要求6所述的第一元件;和
作为内部元件的如权利要求6所述的第二元件,所述第二元件至少部分地嵌套在所述第一元件内,用以在所述第一元件的内表面和所述第二元件的外表面之间限定流路段。
12.一种压缩机消声器,包括:
如权利要求6所述的第一元件;
用金属间隔件与所述第一元件隔开的如权利要求6所述的第二元件;和
作为内部元件的如权利要求6所述的第三元件,所述第三元件至少部分地嵌套在所述第一元件和第二元件内用以在所述第一元件的内表面和所述第二元件的外表面之间限定流路段。
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PCT/US2004/034946 WO2006043955A1 (en) | 2004-10-20 | 2004-10-20 | Compressor sound suppression |
USPCT/US04/34946 | 2004-10-20 |
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CNB2005800352103A Expired - Fee Related CN100554684C (zh) | 2004-10-20 | 2005-01-27 | 压缩机消声器 |
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EP (2) | EP1805417A4 (zh) |
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AU (2) | AU2004324193B2 (zh) |
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- 2004-10-20 CN CN2004800442410A patent/CN101044320B/zh not_active Expired - Fee Related
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- 2004-10-20 KR KR1020077001815A patent/KR20070035047A/ko not_active Application Discontinuation
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- 2005-01-27 WO PCT/US2005/003403 patent/WO2006043962A1/en active Application Filing
- 2005-01-27 CN CNB2005800352103A patent/CN100554684C/zh not_active Expired - Fee Related
- 2005-01-27 AU AU2005296267A patent/AU2005296267B2/en not_active Ceased
- 2005-01-27 EP EP05712738.3A patent/EP1685327B1/en not_active Not-in-force
- 2005-01-27 US US11/665,957 patent/US8328532B2/en not_active Expired - Fee Related
- 2005-01-27 CA CA002584283A patent/CA2584283A1/en not_active Abandoned
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US20230392827A1 (en) * | 2017-10-11 | 2023-12-07 | Carrier Corporation | Muffler with metallic meshed rings |
Also Published As
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CN101044320A (zh) | 2007-09-26 |
EP1685327A4 (en) | 2007-03-07 |
HK1113693A1 (en) | 2008-10-10 |
EP1685327B1 (en) | 2017-12-06 |
KR20070035047A (ko) | 2007-03-29 |
BRPI0515971A (pt) | 2008-08-12 |
US8328532B2 (en) | 2012-12-11 |
HK1112953A1 (en) | 2008-09-19 |
EP1805417A1 (en) | 2007-07-11 |
CA2583621C (en) | 2010-12-21 |
CN101044320B (zh) | 2010-09-29 |
CN100554684C (zh) | 2009-10-28 |
WO2006043962A1 (en) | 2006-04-27 |
AU2005296267B2 (en) | 2009-09-10 |
BRPI0419079A (pt) | 2007-12-18 |
WO2006043955A1 (en) | 2006-04-27 |
US20090060759A1 (en) | 2009-03-05 |
US20090068028A1 (en) | 2009-03-12 |
CA2584283A1 (en) | 2006-04-27 |
AU2004324193B2 (en) | 2009-02-19 |
AU2005296267A1 (en) | 2006-04-27 |
EP1685327A1 (en) | 2006-08-02 |
AU2004324193A1 (en) | 2006-04-27 |
TW200726919A (en) | 2007-07-16 |
EP1805417A4 (en) | 2010-10-06 |
US8021126B2 (en) | 2011-09-20 |
CA2583621A1 (en) | 2006-04-27 |
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