CN101787977A - 带有三级容量控制的涡旋压缩机 - Google Patents

带有三级容量控制的涡旋压缩机 Download PDF

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CN101787977A
CN101787977A CN201010002200A CN201010002200A CN101787977A CN 101787977 A CN101787977 A CN 101787977A CN 201010002200 A CN201010002200 A CN 201010002200A CN 201010002200 A CN201010002200 A CN 201010002200A CN 101787977 A CN101787977 A CN 101787977A
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valve
scroll
scroll compressor
ports
pressing chamber
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CN101787977B (zh
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T·L·米利夫
孙自立
T·P·帕特尔
J·穆尼奇
J·T·希尔
G·菲尔茨
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Danfoss Scroll Technologies LLC
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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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
    • 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253—Details concerning the base
    • F04C18/0261—Details of the ports, e.g. location, number, geometry
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/14—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using rotating valves
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/58—Valve parameters
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86879—Reciprocating valve unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Multiple-Way Valves (AREA)

Abstract

一种涡旋压缩机，包括具有大致螺旋形的涡旋齿的第一涡旋件和具有大致螺旋形的涡旋齿的第二涡旋件。所述大致螺旋形的涡旋齿互插装配以限定压缩室。一对端口从所述压缩室导出。一对阀门选择性地阻挡从所述端口离开所述压缩室的流动。所述阀门选择性地控制所述流动，以便使流动不通过所述两个端口中的任一个、或者从所述两个端口都通过、或者从所述两个端口中的仅一个端口通过，从而提供三级容量。

Description

带有三级容量控制的涡旋压缩机
技术领域
本申请涉及一种具有容量控制阀的涡旋压缩机。
背景技术
涡旋压缩机越来越被广泛的利用于制冷剂压缩应用。在一台典型的涡旋压缩机中，大致成螺旋状的第一涡旋齿与大致成螺旋状的第二涡旋齿互插装配。这些互插装配的涡旋齿限定了引入和压缩制冷剂的压缩室。
在制冷剂压缩应用的许多情况下，人们希望可以降低正在被压缩的制冷剂的容量或者总量。举个例子，如果空调系统所受的负载降低，那么减少被压缩的制冷剂的总量将是高能效的。多种容量控制的方式已经为人所知。在一种标准的容量控制中，阀门打开在涡旋压缩机中将压缩室连通返回至吸入室的端口。当阀门开启时，制冷剂流回吸入室，被完全压缩的制冷剂的总量减少，从而降低了容量以及压缩机使用的能量。
多种容量控制装置已经为人所知所用。然而，总体而言，它们并没有带来期望的灵活性。
发明内容
在本发明的一个实施例中，提供了带有三级容量控制的涡旋压缩机。所述涡旋压缩机，包括：具有大致螺旋形的涡旋齿的第一涡旋件；具有大致螺旋形的涡旋齿的第二涡旋件，所述大致螺旋形的涡旋齿互插装配以限定压缩室；从所述压缩室导出的两个端口；一对阀门，这对阀门用于选择性地阻挡从所述两个端口离开所述压缩室的流动；以及所述阀门能被控制以便使流动不通过所述两个端口中的任一个、或者从所述两个端口都通过、或者从所述两个端口中的仅一个端口通过，从而提供三级容量。
本发明的这些以及其他特征可以通过以下详细说明以及附图获得最好的理解，之后是一段简要的描述。
附图说明
图1为涡旋压缩机的示意图。
图2为本发明的第一个实施例的流程示意图。
图3示出了第二实施例。
图4示出了第三实施例。
图5示出了又一实施例。
图6示出了另外一个实施例。
图7示出了图6的实施例的另外特征。
图8示出了另外一个实施例。
图9A示出了又一实施例。
图9B示出了图9A的实施例的另外一部分。
图9C示出了图9A的实施例的另外一部分。
图9D示出了图9A的实施例的又一部分。
图10示出了又一实施例。
具体实施方式
图1所示的涡旋压缩机20包括绕转涡旋件22，该绕转涡旋件22与非绕转涡旋件24互插装配。压缩室26被限定在涡旋件22和24之间。如该图所示，涡旋件的齿包括第一外部较高部分10和内部较低部分11。二级涡旋压缩机已经为人所知，例如在申请号为11/833342、名称为“带有分级容量调节的步进式涡旋压缩机”的共同待审专利申请中所披露的那样。
压缩室26图示与端口28和30连通。阀门32和34被示意性示出，并且可以通过通道36将端口28和30选择性地连通返回至吸入压力室38。典型地，当全容量运转时，绕转涡旋件28在电机12的驱动下绕转，并将压缩室26中的制冷剂向排出端口40压缩。被压缩通过排出端口40的制冷剂进入排出压力室42，然后供下游使用。然而，当需要较少容量时，可以开启阀门32和34中的一个或者它们两个来减少提供的容量。在这种方式中，三级容量可以被提供，例如容量的100％，70％和45％。
图2示出第一实施例60，其中单个电磁阀62包括阻挡部分64，部分66，以及另一部分68。可以来自排出压力室42的加压气体源78与阀门62连通。电压被选择性地施加在螺线管70上以合适地定位阀门62。在所示位置中，加压气体源78并没有与线路80或者82连通。线路80和82向阀门72和74提供加压流体。典型地，阀门72和74由弹簧移动到使制冷剂从气穴28和30流回至吸入室38的位置。当然，阀门72和74可以通常定位成阻挡流动。
当需要全容量时，移动阀门62至使加压气体源78与所述部分66对准的位置。加压制冷剂现在流至线路80和82，并且偏置阀门72和74至关闭位置。当需要第一级减少容量时，移动阀门使所述部分68与加压气体源78对准。在该位置中，加压制冷剂通过通道82输送，阀门74被偏置至关闭位置，并且阀门72保持开启。此时便实现了中间的减少的容量。类似地，当需要更小容量时，阀门60移回至所示位置，使得加压流体不会流到阀门72或者74。
图3示出了另外一个实施例90，其中图2的基本设置保持不变，但只使用了二级容量控制。在该实施例中，阀门94具有部分96和98。在所示位置中，被弹簧偏置后，加压气体源78没有和线路92连通。两个阀门都在保持在开启位置，实现了减少的容量。另一方面，当需要全容量时，移动阀门使得部分96和加压气体源78对准，并且移动阀门72和74以阻挡容量的减少。
图4示出了又一实施例100，其中通道102选择性地与导回至涡旋压缩机的吸入压力区域的中央通道106连通。可能需要另外的通道来将部分106与吸入部分充分地连通。阀门108和110可以是电磁阀，并放置在所示位置来减少容量。当需要全容量时，移动阀门防止来自通道102的流动到达通道106。此外，这两个阀门中可以仅有一个开启，从而提供中间的减少的容量。
图5示出了又一实施例120，其中阀门108和110阻挡来自点122的流动到达导回至吸入压力室的通道124。再次地，通过阻挡两个通道122，或者使得流动通过这两个通道，或者阻挡其中一个通道，图5的实施例可以提供三级容量。
图6示出了实施例151，其中转盘152由电机153驱动。如图7所示，转盘152具有第一位置154，在该位置中，使如前一个实施例所示的两个通道的其中一个向吸入室倾卸(dump)。在第二位置156中，两个通道与吸入室对准。在第三位置155中，来自两个通道的流动被阻挡。
图8示出了另一个实施例159，其中回转马达160具有某种旋转至线性的连接，所述连接驱动伸长杆166以便阻挡或者允许来自通道162和164的流动。
图9A示出了另一个实施例，其中电机182驱动旋转阀门180。该旋转阀门180选择性地连通与压缩室连通的两个通道190和192，以便向导回至吸气的通道194和196倾卸。如图9B所示，在阀门180的一个位置中，头部184包括两个通道186。当这些通道与通道190和192对准时，流动从两个通道倾卸，实现了容量最大量的减少。
图9C示出了在另外一个位置184的头部180，其中只有一个通道191与通道190连通。这将提供中间的减少的容量。
图9D示出了另外一个位置193，其中来自两个通道190和192的流动将被阻挡。
图10示出了又一实施例170，其中旋转齿轮171转动在环172上的齿条齿。可以通过适当地转动齿条172选择性地开启或者关闭端口174和176。
上文已经披露了本发明的几个实施例，本领域的技术人员可以认识到某些变形将被包含在本发明的范围中。因此，应当研究权利要求书以确定本发明真正的范围和内容。

Claims (11)

1.一种涡旋压缩机，包括：
具有大致螺旋形的涡旋齿的第一涡旋件；
具有大致螺旋形的涡旋齿的第二涡旋件，所述大致螺旋形的涡旋齿互插装配以限定压缩室；
从所述压缩室导出的两个端口；
一对阀门，这对阀门用于选择性地阻挡从所述两个端口离开所述压缩室的流动；以及
所述阀门能被控制以便使流动不通过所述两个端口中的任一个、或者从所述两个端口都通过、或者从所述两个端口中的仅一个端口通过，从而提供三级容量。
2.根据权利要求1所述的涡旋压缩机，其特征在于，所述阀门被流体控制。
3.根据权利要求2所述的涡旋压缩机，其特征在于，用电磁阀控制所述流体向所述阀门的流动。
4.根据权利要求3所述的涡旋压缩机，其特征在于，电磁阀被定位在三个位置中的一个上，以选择性地向所述阀门提供被压缩的制冷剂，从而选择性地阻挡或者允许来自所述端口的流动。
5.根据权利要求1所述的涡旋压缩机，其特征在于，所述阀门为电磁阀。
6.根据权利要求5所述的涡旋压缩机，其特征在于，有一对所述电磁阀。
7.根据权利要求1所述的涡旋压缩机，其特征在于，所述阀门具有回转马达，用来选择性地转动阀门元件。
8.一种涡旋压缩机，包括：
具有大致螺旋形的涡旋齿的第一涡旋件；
具有大致螺旋形的涡旋齿的第二涡旋件，所述大致螺旋形的涡旋齿互插装配以限定压缩室；
从所述压缩室导出的一对端口；
一对阀门，这对阀门用于选择性地阻挡从所述端口离开所述压缩室的制冷剂流动，所述阀门被流体控制；以及
控制所述流体向所述阀门的流动的电磁阀。
9.根据权利要求8所述的涡旋压缩机，其特征在于，所述阀门被流体控制。
10.根据权利要求9所述的涡旋压缩机，其特征在于，电磁阀控制所述流体向所述阀门的流动。
11.一种运行涡旋压缩机的方法，包括以下步骤：
(a)提供从所述压缩室导出的一对端口；
(b)选择性地阻挡从所述端口离开所述压缩室的流动；以及
(c)控制该流动以便使流动不通过所述两个端口中的任一个、或者从所述两个端口都通过、或者从所述两个端口中的仅一个端口通过，从而提供三级容量。
CN2010100022002A 2009-01-22 2010-01-13 带有三级容量控制的涡旋压缩机 Expired - Fee Related CN101787977B (zh)

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US12/357,580 US8328531B2 (en) 2009-01-22 2009-01-22 Scroll compressor with three-step capacity control
US12/357,580 2009-01-22

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CN101787977B (zh) 2013-01-16
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US20100183453A1 (en) 2010-07-22
US8328531B2 (en) 2012-12-11
JP2010169096A (ja) 2010-08-05

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