CN1231242A - 闭合回路再循环系统中制冷剂的控制 - Google Patents
闭合回路再循环系统中制冷剂的控制 Download PDFInfo
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 30
- 239000002775 capsule Substances 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 17
- 230000008676 import Effects 0.000 claims description 7
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- 238000012797 qualification Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 10
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- 238000005057 refrigeration Methods 0.000 description 4
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- 230000006837 decompression Effects 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
- F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
- F25B2341/0681—Expansion valves combined with a sensor the sensor is heated
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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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
- F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Control Of Temperature (AREA)
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Abstract
为了分开布置蒸发器,例如在汽车前后座舱设置蒸发器的制冷系统,具有各自的热膨胀阀,用于控制来自同一个压缩机和冷凝器的制冷剂的流量。其中较远的膨胀阀具有热电冷却器,它与阀封壳中的流体处于热传导关系,当热电冷却器通电时,所测的经过阀从蒸发器流向冷凝器的制冷剂温度变化,使阀减少流向蒸发器的流量,以补偿由于流经另一热膨胀阀而降低的制冷剂供应压力。
Description
本发明涉及制冷系统，特别是这样一种制冷系统：用热动控制阀控制液体/蒸汽制冷剂的膨胀，使来自冷凝器的液体制冷剂的高压状态降至能进入蒸发器的减压状态。热响应膨胀阀通常用在制冷系统中，它必须能响应系统热负荷的快速变化，该系统可以是汽车客舱空调系统。
正如在这类汽车空调系统中所知的，从系统蒸发器排出的过热制冷剂蒸汽在返回压缩机进口的路径上经过膨胀阀，在阀中与装有液体的封壳发生热交换。封壳的布置使得流体的膨胀和收缩作用于隔膜，隔膜的运动会使阀杆动作，由此来控制制冷剂向蒸发器的流动。因此，过热蒸汽的温度是系统控制的基础，该温度与来自蒸发器的制冷剂的饱和温度有关。系统通过控制流经蒸发器的制冷剂，来维持给定热负荷下的蒸发器排放的预定过热度。这种布置对于使用单个蒸发器的汽车空调系统已证明是可靠和有效的。
然而，近来有一种需求，就是在汽车客舱中布置多个蒸发器，它们在运行时接收同一个冷凝器的排放流体。例如用来冷却前排座舱空气的蒸发器和分开远距离设置的用来冷却后排座舱空气的蒸发器，前、后排的蒸发器均与同一个冷凝器配合而运行，由于控制流向前排蒸发器的膨胀阀运行导致的制冷剂的压力变化，使膨胀阀、特别是控制流向后排蒸发器的阀不能适当的响应。特别是当向后排蒸发器的热膨胀阀供应管中的压力降低时，热膨胀阀作出反应，维持所需的过热度，保证最大流量，导致不需要的冷却和/或蒸发器结冰。
因此需要一种方法或装置，控制制冷剂向第二个、远距离设置的、带有热膨胀阀的蒸发器的流动，使其能补偿因控制流向主蒸发器的制冷剂而出现的流量和压力变化的偏差。
本发明提供了控制向主、辅蒸发器流动的上述问题的解决方案，这些蒸发器与同一个压缩机和冷凝器配合运行，每个蒸发器都在其入口处具有控制流动的热膨胀阀。为了补偿来自辅蒸发器的所测蒸汽的饱和温度，本发明提供一种热电冷却元件控制辅蒸发器的膨胀阀的流量，使热膨胀阀减少蒸发器的流量，以防止过度冷却。本发明的热电冷却元件布置成与辅热膨胀阀封壳中的液体有导热关系，该阀具有通常的结构，可以在现有的热膨胀阀上方便的增加该元件而不需对阀进行重新设计或重新加工制造该阀。本发明能有效地提高所测蒸发器排放的过热度，减少制冷剂流量，使吹过辅蒸发器的空气温度提高。
附图是使用主、辅蒸发器配合同一个压缩机和冷凝器工作的制冷或空调系统的示意图。
参照附图，本发明的系统总体标作10，包括制冷剂压缩机12，在汽车空调系统中它通常由未示出的发动机轴以本领域所熟悉的方式皮带驱动。压缩机12沿管路14以较高压力向冷凝器16排放制冷剂蒸汽，冷凝器通常布置得与自由空气流进行传热，它通过导管18向供应管20、22排放液体制冷剂。导管20通向热膨胀阀26的进口，该阀在其出口通过导管28向主或前蒸发器30排放减压后的制冷剂，蒸发器经与阀26相连的导管32排放过热蒸汽，并将制冷剂经导管34返回压缩机进口36。阀26包括热响应传感模块38，它对流过返回通道和阀26的制冷剂的温度作出反应，使执行杆40动作，执行杆又使阀塞42运动，控制从进口24至出口导管28的流量。我们将会知道阀26是已知的结构并以通常方式运行。
导管22以较高压力从冷凝器16向阀45的进口44供应液体制冷剂，并供至阀座46，阀座上布置一个可动的阀杆48，用于控制流过阀座的流量，阀45的出口通道50具有相应的压力降至，该出口经导管52与辅或后蒸发器54的进口相连。蒸发器54的出口经导管56向通过阀体45的通道58排放，通道58与导管60相连，导管60又与压缩机12的进口36相连。
充有液体的封壳62在阀45的端部，与操作杆64相连，该杆穿过阀座46与阀杆48接触，随着封壳62内的液体的膨胀和收缩，一个未示出的隔膜在其中响应，使杆64运动。杆64最好是空的，其中存有液体，该液体与通道58中的制冷剂具有导热关系，正如在现有技术热膨胀阀中的那样。阀45的结构和运行与现有技术制冷剂膨胀阀一样。
本发明的阀45另外还包括电操作控制元件66，它通过一个环形支承件68固定在封壳62上，该支承件具有封壳的周边，将封壳接纳在其内周的槽70中。热电冷却元件72靠近封壳62安装在支承件68内，并具有穿过支承件68向外延伸的导电体74、76。支承件78支撑着这些部件，如果需要的话，它可具有散热片。热电冷却器72和封壳62之间的空间80最好填充有导热介质，例如热力油脂，以使热电冷却器72和封壳62之间快速导热。
在运行中，当热电冷却器72通过导线74、76从适当的电源例如电控元件(ECU)82通电后，热电元件72使封壳62冷却，其温度低于操作棒64测得的流经通道58的蒸发器排放气流的温度，为补偿在通道58中流体对封壳62中流体的温度影响，使棒64向下运动关闭阀48顶住阀座46。蒸发器54流量的减少增加了蒸发器中制冷剂的过热度，蒸发器的温度升高阻止了蒸发器54的过度冷却。在普通的空调系统中，强制掠过蒸发器54的空气通常被排向客舱，用于冷却蒸发器54附近的区域。在蒸发器54布置来冷却汽车后座舱的一个申请中，热电冷却器72的作用是：当由于蒸发器30的阀26的高流量要求使阀45的进口导管22中的压力减少时，阻止阀45全开。
因此本发明提供了一个独特和新颖的节省费用的方法，该方法改变了现有的热膨胀阀，与同一个压缩机和冷凝器配合的蒸发器在使用时，不会在一个蒸发器中出现过度冷却的现象。
尽管以上参照实施例对本发明进行了描述，应当懂得，本发明可以改形和变化，并且仅受所附权利要求的限制。
Claims (7)
1．一种电控热动制冷剂膨胀阀，包括：
(a)具有进口和出口的一个阀体；
(b)可在所述进出口间的限制位置和允许流动位置之间运动的阀塞；
(c)热响应装置和一个执行件，热响应装置包括限定充有流体的仓室的装置和可根据所述仓室内压力运动的隔膜，执行件根据所述隔膜的运动使阀塞动作；
(d)当通电时，由热传导关系冷却所述充有流体的仓室的装置。
2．如权利要求1所述的膨胀阀，其中所述的冷却装置包括热电设备。
3．如权利要求1所述的膨胀阀，其中所述的限制充有流本的仓室的装置包括在所述阀体上的封壳，所述的冷却装置与所述的封壳相连。
4．如权利要求1所述的膨胀阀，其中所述的限定充有流体的仓室的装置包括在所述阀体上的封壳，所述的冷却装置包括与所述封壳相连的热电设备。
5．如权利要求1所述的膨胀阀，其中所述的布置成热传导关系的冷却装置包括热敏油脂。
6．一种控制闭合回路再循环冷却系统中的制冷剂的方法，包括：
(a)压缩制冷剂蒸汽并使其流经冷凝器；
(b)布置一膨胀阀，用于在其进口端接收来自冷凝器的高压流体，并在减压下将流体排给蒸发器；
(c)在所述阀的感应封壳中布置流体，测量来自蒸发器的制冷剂的温度，使膨胀阀中的阀塞根据所述的测量温度动作，控制流向蒸发器的流量；冷却所述封壳中的流体，由一预定值来补偿所述的测量温度。
7．如权利要求6所述的方法，其中所述的电冷却步骤包括在所述封壳上布置热电冷却器并用电驱动所述的冷却器。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5731998A | 1998-04-09 | 1998-04-09 | |
| US057319 | 1998-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1231242A true CN1231242A (zh) | 1999-10-13 |
Family
ID=22009868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99106010A Pending CN1231242A (zh) | 1998-04-09 | 1999-04-09 | 闭合回路再循环系统中制冷剂的控制 |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0949461A2 (zh) |
| JP (1) | JP2000028234A (zh) |
| KR (1) | KR19990083040A (zh) |
| CN (1) | CN1231242A (zh) |
| AU (1) | AU2361899A (zh) |
| BR (1) | BR9901612A (zh) |
| CA (1) | CA2266786A1 (zh) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688706B (zh) * | 2007-06-19 | 2013-04-10 | 开利公司 | 用于节能型制冷剂循环性能提升的热电冷却器 |
| CN104930736A (zh) * | 2014-03-19 | 2015-09-23 | 奥迪股份公司 | 具有冷媒循环回路的汽车空调设备 |
| CN108116183A (zh) * | 2016-11-28 | 2018-06-05 | 杭州三花研究院有限公司 | 一种热管理系统的控制方法 |
| CN108656890A (zh) * | 2017-03-27 | 2018-10-16 | 翰昂系统株式会社 | 车辆用空调装置 |
| CN110792922A (zh) * | 2018-08-01 | 2020-02-14 | 乔治洛德方法研究和开发液化空气有限公司 | 向容器加注加压气体的装置和方法 |
| CN112303966A (zh) * | 2019-07-26 | 2021-02-02 | 株式会社鹭宫制作所 | 温度式膨胀阀以及冷冻循环系统 |
| CN112428768A (zh) * | 2020-05-29 | 2021-03-02 | 杭州三花研究院有限公司 | 热管理系统 |
| CN116518581A (zh) * | 2023-05-19 | 2023-08-01 | 浙江奇翼科技有限公司 | 一种半导体制冷装置及冷风系统 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10220416A1 (de) * | 2002-05-08 | 2003-11-20 | Behr Gmbh & Co | Thermostatisches Expansionsventil |
| US20070101737A1 (en) | 2005-11-09 | 2007-05-10 | Masao Akei | Refrigeration system including thermoelectric heat recovery and actuation |
-
1999
- 1999-04-07 AU AU23618/99A patent/AU2361899A/en not_active Abandoned
- 1999-04-08 JP JP11101152A patent/JP2000028234A/ja active Pending
- 1999-04-08 KR KR1019990012279A patent/KR19990083040A/ko not_active Application Discontinuation
- 1999-04-08 CA CA002266786A patent/CA2266786A1/en not_active Abandoned
- 1999-04-09 EP EP99106193A patent/EP0949461A2/en not_active Withdrawn
- 1999-04-09 CN CN99106010A patent/CN1231242A/zh active Pending
- 1999-04-09 BR BR9901612-5A patent/BR9901612A/pt not_active Application Discontinuation
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688706B (zh) * | 2007-06-19 | 2013-04-10 | 开利公司 | 用于节能型制冷剂循环性能提升的热电冷却器 |
| CN104930736A (zh) * | 2014-03-19 | 2015-09-23 | 奥迪股份公司 | 具有冷媒循环回路的汽车空调设备 |
| US9738138B2 (en) | 2014-03-19 | 2017-08-22 | Audi Ag | Vehicle air conditioner with a refrigerant circuit |
| CN104930736B (zh) * | 2014-03-19 | 2017-09-29 | 奥迪股份公司 | 具有冷媒循环回路的汽车空调设备 |
| CN108116183A (zh) * | 2016-11-28 | 2018-06-05 | 杭州三花研究院有限公司 | 一种热管理系统的控制方法 |
| CN108116183B (zh) * | 2016-11-28 | 2024-03-12 | 杭州三花研究院有限公司 | 一种热管理系统的控制方法 |
| CN108656890B (zh) * | 2017-03-27 | 2021-07-20 | 翰昂系统株式会社 | 车辆用空调装置 |
| CN108656890A (zh) * | 2017-03-27 | 2018-10-16 | 翰昂系统株式会社 | 车辆用空调装置 |
| CN110792922A (zh) * | 2018-08-01 | 2020-02-14 | 乔治洛德方法研究和开发液化空气有限公司 | 向容器加注加压气体的装置和方法 |
| CN112303966A (zh) * | 2019-07-26 | 2021-02-02 | 株式会社鹭宫制作所 | 温度式膨胀阀以及冷冻循环系统 |
| CN112303966B (zh) * | 2019-07-26 | 2022-04-15 | 株式会社鹭宫制作所 | 温度式膨胀阀以及冷冻循环系统 |
| CN112428768A (zh) * | 2020-05-29 | 2021-03-02 | 杭州三花研究院有限公司 | 热管理系统 |
| CN112428768B (zh) * | 2020-05-29 | 2024-06-11 | 杭州三花研究院有限公司 | 热管理系统 |
| CN116518581A (zh) * | 2023-05-19 | 2023-08-01 | 浙江奇翼科技有限公司 | 一种半导体制冷装置及冷风系统 |
| CN116518581B (zh) * | 2023-05-19 | 2024-05-24 | 南京华溧软件技术有限公司 | 一种冷风系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990083040A (ko) | 1999-11-25 |
| BR9901612A (pt) | 2000-03-08 |
| CA2266786A1 (en) | 1999-10-09 |
| AU2361899A (en) | 1999-10-21 |
| EP0949461A2 (en) | 1999-10-13 |
| JP2000028234A (ja) | 2000-01-28 |
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