EP2426437A2 - Ultratieftemperatur-Wärmepumpensystem mit sekundärem Kühlmittelinjektionsmechanismus - Google Patents

Ultratieftemperatur-Wärmepumpensystem mit sekundärem Kühlmittelinjektionsmechanismus Download PDF

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Publication number
EP2426437A2
EP2426437A2 EP11005781A EP11005781A EP2426437A2 EP 2426437 A2 EP2426437 A2 EP 2426437A2 EP 11005781 A EP11005781 A EP 11005781A EP 11005781 A EP11005781 A EP 11005781A EP 2426437 A2 EP2426437 A2 EP 2426437A2
Authority
EP
European Patent Office
Prior art keywords
compressor
valve
economizer
heat pump
low temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11005781A
Other languages
English (en)
French (fr)
Other versions
EP2426437A3 (de
Inventor
Zaipeng Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Deron Heat Source Facilities Co Ltd
Original Assignee
Guangzhou Deron Heat Source Facilities Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Deron Heat Source Facilities Co Ltd filed Critical Guangzhou Deron Heat Source Facilities Co Ltd
Publication of EP2426437A2 publication Critical patent/EP2426437A2/de
Publication of EP2426437A3 publication Critical patent/EP2426437A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers

Definitions

  • the invention relates to air conditioning systems and particularly relates to an ultra low temperature heat pump system with secondary air injection mechanism.
  • An object of the invention is to provide an ultra low temperature heat pump system with secondary air injection mechanism , which is novel in structure and utility, utilizes air refilling technique whereby the range of the working temperature of the compressor is expanded and the stability as well as efficiency of the heat pump is improved.
  • an ultra low temperature heat pump system with secondary air injection mechanism which comprises a compressor, a condenser, a reservoir tank, a thermal expansion valve, a vaporizer and a separator connected sequencially to form a circulation loop.
  • An air refill device is provided between the compressor and the reservoir tank which comprises an injection valve, a economizer, a first solenoid valve and a second solenoid valve; the two solenoid valves are arranged in parallel with the first solenoid valve connected to the compressor directly and the second solenoid valve connected to the injection valve and the economizer sequentially, the economizer is then connected to the compressor.
  • the compressor is provided with an air refilling inlet to which the first solenoid valve and the economizer are connected.
  • the economizer is a dual loop plate heat exchanger in which the respective ends of one loop is connected to the injection valve and the air refilling inlet, the respective ends of the other loop is connected to the reservoir tank and the thermal expansion valve.
  • the ultra low temperature heat pump system of the invention is advantageous in that by providing the air refilling device , the working temperature of the heat pump is greatly expanded, i.e., the compressor can work normally above an ambient temperature as low as -30 Celsius.
  • the heat pump in this invention has improved working stability and high efficiency and therefore can be used in the low temperature areas.
  • FIG. 1 is a schematic illustration of the heat pump according to one embodiment of the invention.
  • an ultra low temperature heat pump system with secondary air injection mechanism comprises a compressor 1, a condenser 2, a reservoir tank 3, a thermal expansion valve 4, a vaporizer 5 and a separator 16, which are sequentially connected to form a circulation loop.
  • An air refill device is provided between the compressor 1 and the reservoir tank 3, which is comprised of an injection valve 6, an economizer 7, a first solenoid valve 8 and a second solenoid valve 9 ;the two solenoid valves are arranged in parallel with the first solenoid valve 8 connected to the compressor 1 directly and the second solenoid valve 9 connected to the injection valve 6 and the economizer 7 sequentially , the economizer 7 is then connected to the compressor 1.
  • the compressor 1 is provided thereon an air refilling inlet VI to which the first solenoid valve 8 and the economizer 7 are connected.
  • the economizer 7 is preferably a dual loop plate heat exchanger in which the two ends of one loop is connected to the injection valve 6 and the air refilling inlet respectively and the two ends of the other loop is connected to the reservoir tank 3 and the thermal expansion valve 4 respectively.
  • a four way valve 10 is provided through which the discharge port D of the compressor 1 is connected to the condenser 1, also by the four way valve, the vaporizer 5 is connected to and through the separator 16 to the suction port S of the compressor 1.
  • the compressor 1 and the separator 16 are provided with respective sight glass 12, 13 for viewing the status of the working medium circulated therethrough.
  • the heat pump is also provided with a plurality number of pressure monitoring port.
  • Capillary tube 15 is provided between the first solenoid valve 8 and the compressor 1 , i.e. if the primary injection realized by injection valve 6 is insufficient, the first solenoid valve 8 is activated and a secondary injection by the capillary tube is realized whereby the discharge temperature of the compressor is controllable and adjustable.
  • the ultra low temperature heat pump system with secondary air injection mechanism is operating in the following manner:

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP11005781.7A 2010-09-02 2011-07-14 Ultratieftemperatur-Wärmepumpensystem mit sekundärem Kühlmittelinjektionsmechanismus Withdrawn EP2426437A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010270325 CN101922823A (zh) 2010-09-02 2010-09-02 二次喷气高效超低温热泵机组

Publications (2)

Publication Number Publication Date
EP2426437A2 true EP2426437A2 (de) 2012-03-07
EP2426437A3 EP2426437A3 (de) 2015-03-11

Family

ID=43337908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11005781.7A Withdrawn EP2426437A3 (de) 2010-09-02 2011-07-14 Ultratieftemperatur-Wärmepumpensystem mit sekundärem Kühlmittelinjektionsmechanismus

Country Status (2)

Country Link
EP (1) EP2426437A3 (de)
CN (1) CN101922823A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111426101A (zh) * 2020-03-16 2020-07-17 科希曼电器有限公司 超低温环境下稳定运行的空气源热泵装置及其控制系统
CN112665226A (zh) * 2020-12-15 2021-04-16 珠海格力电器股份有限公司 一种空调系统及其控制方法

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CN102588254A (zh) * 2012-02-22 2012-07-18 北京工业大学 一种混合室外置式单机双级全封闭制冷压缩机
CN102818393A (zh) * 2012-06-12 2012-12-12 徐亚红 一种低温全热回收型模块式风冷热泵机组
CN103017503A (zh) * 2012-12-28 2013-04-03 广州德能热源设备有限公司 一种分体式热泵烘干机组
CN103471275B (zh) * 2013-08-30 2017-12-19 青岛海信日立空调系统有限公司 补气增焓的空调循环系统及其控制方法
WO2016034298A1 (en) * 2014-09-05 2016-03-10 Danfoss A/S A method for controlling a variable capacity ejector unit
WO2017029011A1 (en) 2015-08-14 2017-02-23 Danfoss A/S A vapour compression system with at least two evaporator groups
JP2018531359A (ja) 2015-10-20 2018-10-25 ダンフォス アクチ−セルスカブ 可変のレシーバ圧力設定点を有する蒸気圧縮システムを制御する方法
CN108139131B (zh) 2015-10-20 2020-07-14 丹佛斯有限公司 用于控制蒸气压缩系统长时间处于喷射器模式的方法
CN105674627A (zh) * 2016-03-28 2016-06-15 侴乔力 水源热泵驱动水蒸汽调制机
CN110455013A (zh) * 2018-05-08 2019-11-15 上海海立电器有限公司 喷气增焓热泵系统
DK180146B1 (en) 2018-10-15 2020-06-25 Danfoss As Intellectual Property Heat exchanger plate with strenghened diagonal area

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US6571576B1 (en) * 2002-04-04 2003-06-03 Carrier Corporation Injection of liquid and vapor refrigerant through economizer ports
US20080314057A1 (en) * 2005-05-04 2008-12-25 Alexander Lifson Refrigerant System With Variable Speed Scroll Compressor and Economizer Circuit
CN100366992C (zh) * 2005-11-25 2008-02-06 珠海格力电器股份有限公司 低温空调热泵系统及使用该系统降低温度调节波动的方法
JP4715561B2 (ja) * 2006-03-06 2011-07-06 ダイキン工業株式会社 冷凍装置
CN101568776B (zh) * 2006-10-27 2011-03-09 开利公司 具有膨胀器的节约制冷循环
WO2008140454A1 (en) * 2007-05-14 2008-11-20 Carrier Corporation Refrigerant vapor compression system with flash tank economizer
EP2153139A4 (de) * 2007-05-23 2012-10-10 Carrier Corp Kältemitteleinspritzung über dem kritischen punkt in einem transkritischen kältemittelsystem
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CN201265977Y (zh) * 2008-08-26 2009-07-01 广西诚基永信太阳能科技工程有限公司 带补气管路的空气源热泵机组
CN201476406U (zh) * 2009-09-04 2010-05-19 大连中星科技开发有限公司 低温准双级空气源热泵装置
CN101776342A (zh) * 2010-01-25 2010-07-14 大连三洋压缩机有限公司 一种低温热泵系统
CN201772678U (zh) * 2010-09-02 2011-03-23 广州德能热源设备有限公司 二次喷气高效超低温热泵机组

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111426101A (zh) * 2020-03-16 2020-07-17 科希曼电器有限公司 超低温环境下稳定运行的空气源热泵装置及其控制系统
CN112665226A (zh) * 2020-12-15 2021-04-16 珠海格力电器股份有限公司 一种空调系统及其控制方法
CN112665226B (zh) * 2020-12-15 2024-04-12 珠海格力电器股份有限公司 一种空调系统及其控制方法

Also Published As

Publication number Publication date
EP2426437A3 (de) 2015-03-11
CN101922823A (zh) 2010-12-22

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