CN101427085B - 用于对环境友好的制冷剂的具有三通操作阀的制冷剂循环 - Google Patents

用于对环境友好的制冷剂的具有三通操作阀的制冷剂循环 Download PDF

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CN101427085B
CN101427085B CN200680005488.0A CN200680005488A CN101427085B CN 101427085 B CN101427085 B CN 101427085B CN 200680005488 A CN200680005488 A CN 200680005488A CN 101427085 B CN101427085 B CN 101427085B
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fluid pipeline
cold
valve
producing medium
refrigerant
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CN101427085A (zh
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T·H·谢内尔
Y·陈
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Carrier Corp
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Carrier Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/006—Details for charging or discharging refrigerants; Service stations therefor characterised by charging or discharging valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Multiple-Way Valves (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air Conditioning Control Device (AREA)
  • Lift Valve (AREA)

Abstract

一种制冷剂循环设有单个的三通操作阀，该三通操作阀用来排出和添加制冷剂。在现有技术中，第二的两通阀与三通阀联合使用。本发明仅仅排出制冷剂，而不需要返回制冷剂。本发明尤其很好地适于与对环境良好的制冷剂如CO2一起使用。

Description

用于对环境友好的制冷剂的具有三通操作阀的制冷剂循环
发明背景
本发明涉及一种以允许除去在现有技术中所必需的第二阀的方式，利用三通阀向制冷剂循环提供简化操作的方法。
制冷剂循环典型地用来压缩制冷剂，并随后经过一系列的热交换器传递制冷剂以便调节流体。典型地，压缩机压缩制冷剂并将其传送到排热的冷凝器中。自冷凝器中，制冷剂传递到膨胀装置，并从膨胀装置传递到蒸发器。在蒸发器中，制冷剂吸收热。作为示例，在空气调节模式中，蒸发器用来冷却正被传送到外界的空气。制冷剂循环也用来加热用于热水供给以及许多其它应用的水。
在现有技术中，经过制冷剂循环流通的制冷剂倾向于为氟利昂，或者不能曝露到外界的另外的制冷剂。因此，严格控制是适当的，以便降低制冷剂到外界任何泄漏的可能性。对于以前的制冷剂循环设计者来说，出现的一个难题就是何时除去制冷剂或者将其添加到系统中。在现有技术中，利用了在膨胀阀的每侧带有一个阀的一对操作阀。开启阀以便允许制冷剂向外流出系统，以及在两个阀端口上放置回收系统使得在返回蒸气的同时除去液态制冷剂。复杂系统是必需的，以便降低泄漏的任何可能性。
尤其是最近，已开发出对环境良好的制冷剂如二氧化碳(CO2)。使用对环境良好的制冷剂，很少考虑有关制冷剂对外界的泄漏。
发明概述
在本发明已公开的实施例中，利用对环境良好的制冷剂的制冷剂循环的操作功能包括单个的三通阀。单个的三通阀可以处于允许制冷剂循环正常运行的关闭位置。此外，作为压力测试位置，可以移动三通阀以便隔离制冷剂循环的低压侧。最后，为了添加或从制冷剂循环中取出制冷剂，可以将三通阀移动到中间位置，在中间位置允许在通往制冷剂循环外部的端口到双向引导的制冷剂管线之间的连通。本发明因此提供了一种自制冷剂循环中取出制冷剂而根本不需返回制冷剂的方法。此外，通过利用这种方法，本发明消除了对第二阀的需要。
根据下文的详细说明并结合附图，能够更好地理解本发明的这些和其它特征，下面是附图的简述。
附图简述
图1示出了结合有发明性操作阀的示意性的制冷剂循环。
图2示出了发明性操作阀的另一运行模式。
图3示出了发明性操作阀的又一运行模式。
图4示出了现有技术的制冷剂循环。
优选实施例的具体介绍
图1说明了制冷剂循环20。压缩机22压缩制冷剂并将其向下传送到冷凝器24。自冷凝器24中，制冷剂传递到膨胀装置26中。制冷剂经过一对制冷剂管线32和30抵达蒸发器28。众所周知，如果制冷剂循环20为空气调节器，则蒸发器对正被传送到外界的空气起调节作用。冷凝器24对处于热水加热系统内的水加热。
操作阀控制器34驱动三通阀36用于控制在管线30和/或32和出口端口38之间的连通。如图1所示，阀36座靠在阀腔37的表面上，并阻塞制冷剂从管线32或30中的任一个向端口38的任何流动。这是阀在制冷剂循环20的正常运行期间将保持的位置。
图2示出了阀控制器34已将阀36移动到使得管线32能够同端口38连通但管线30却不能的位置。在图2的位置中示出了附接在端口38上的部件40。部件40可以是压力测试部件，使得能够检测制冷剂循环20内的压力。图1和图2的位置也在现有技术中采用。
图3的位置示出了阀36处于中间位置，使得管线30和32都和端口38连通。示出了附接在端口38上的部件42。部件42可为将会通过管线30和32把制冷剂注入到制冷剂循环20内的加料容器。或者，如果正在从制冷剂循环20除去制冷剂时，则将阀36放置在该位置而制冷剂能够从管线30和32进入端口38内。在本发明的方法中，制冷剂仅仅是从制冷剂循环20中排出，而不是如现有技术中那样返回。
图4说明了现有技术的制冷剂循环70。如所示出的那样，三通阀134也可与在阀腔62内移动的第二的两通阀60联合。正常情况下，阀60保持抵靠在腔62的左侧表面上，使得端口64不同流体管线110连通。作为替代，制冷剂能够经过正常的制冷剂循环流动。然而，在图4所示的位置，制冷剂正从制冷剂循环70中取出。回收系统66和68附接在端口64和38上。制冷剂被除去，并经过液体分离器传递。液态的制冷剂被除去而返回流则被送回到端口38内。返回的制冷剂包括蒸气状的制冷剂。制冷剂继续通过系统循环，并流出端口64直到液体状态的制冷剂完全除去为止。
本发明被用来指导仅利用三通阀除去制冷剂的方法，并且尤其很好地适于制冷剂对环境良好的制冷剂循环。在公开的实施例中，对环境良好的制冷剂为CO2。以本发明的方法除去了两通阀60。本发明因而简化了现有技术，并提供了更加有成本效益的制冷剂循环。
尽管已公开了本发明的优选实施例，但本领域的普通技术人员将会承认某些改动仍将落入本发明的范围内。因此，下文中的权利要求将用来试图确定本发明的真实范围和内容。

Claims (4)

1. 一种制冷剂系统，包括：
压缩机；
排热的热交换器、膨胀装置和吸热的热交换器；和
其中，在所述排热的热交换器和所述吸热的热交换器之间提供有单个的操作阀，所述阀具有与上游压力连通的第一流体管线和与下游压力连通的第二流体管线，所述阀提供的功能是，当处于充分关闭位置时在阻塞流体抵达排出端口的同时允许流体经过所述阀，当处于中间位置时允许流体从所述第一流体管线和所述第二流体管线抵达所述排出端口，以及在处于充分开启位置时允许流体从所述第一流体管线抵达所述排出端口，但阻塞从所述第二流体管线抵达所述排出端口。
2. 根据权利要求1所述的系统，其特征在于，所述制冷剂为CO2。
3. 一种操作制冷剂循环的方法，包括步骤：
(1)提供单个的阀腔和定位在所述阀腔内的单个的移动阀，所述移动阀能够在所述阀腔内在充分开启位置、充分关闭位置和中间位置之间移动；
(2)提供从排热的热交换器后面的位置与所述阀腔连通的第一流体管线以及从所述阀腔连通到下游的吸热的热交换器的第二流体管线，所述阀当处于所述充分关闭位置时阻塞制冷剂从所述第一流体管线和第二流体管线中的任一个流动到排出端口，当处于充分开启位置时允许制冷剂从所述第一流体管线流动到所述排出端口，但阻塞制冷剂从所述第二流体管线流动到所述排出端口，以及当处于所述中间位置时允许在所述第一流体管线和第二流体管线到所述排出端口之间的连通；
(3)将所述阀移动到所述中间位置并从所述制冷剂循环中排出制冷剂，而不将制冷剂返回到所述制冷剂循环中，直到已完成所述制冷剂的排出为止。
4. 根据权利要求3所述的方法，其特征在于，所述制冷剂为CO2。
CN200680005488.0A 2005-02-22 2006-02-09 用于对环境友好的制冷剂的具有三通操作阀的制冷剂循环 Expired - Fee Related CN101427085B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/062,706 US7370483B2 (en) 2005-02-22 2005-02-22 Refrigerant cycle with three-way service valve for environmentally friendly refrigerant
US11/062,706 2005-02-22
PCT/US2006/004604 WO2006091390A2 (en) 2005-02-22 2006-02-09 Refrigerant cycle with three-way service valve for environmentally friendly refrigerant

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EP (1) EP1851492A4 (zh)
JP (1) JP2008537773A (zh)
KR (1) KR20070099015A (zh)
CN (1) CN101427085B (zh)
AU (1) AU2006216993A1 (zh)
CA (1) CA2598277A1 (zh)
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WO (1) WO2006091390A2 (zh)

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CN101427085A (zh) 2009-05-06
CA2598277A1 (en) 2006-08-31
HK1132545A1 (zh) 2010-02-26
JP2008537773A (ja) 2008-09-25
KR20070099015A (ko) 2007-10-08
EP1851492A2 (en) 2007-11-07
US20060185380A1 (en) 2006-08-24
WO2006091390A2 (en) 2006-08-31
EP1851492A4 (en) 2011-12-07
AU2006216993A1 (en) 2006-08-31
US7370483B2 (en) 2008-05-13
WO2006091390A3 (en) 2007-11-15

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