WO2012139429A1 - 一种除霜变频热泵空调器 - Google Patents

一种除霜变频热泵空调器 Download PDF

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Publication number
WO2012139429A1
WO2012139429A1 PCT/CN2012/070394 CN2012070394W WO2012139429A1 WO 2012139429 A1 WO2012139429 A1 WO 2012139429A1 CN 2012070394 W CN2012070394 W CN 2012070394W WO 2012139429 A1 WO2012139429 A1 WO 2012139429A1
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WO
WIPO (PCT)
Prior art keywords
condenser
defrosting
heat pump
compressor
throttle mechanism
Prior art date
Application number
PCT/CN2012/070394
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English (en)
French (fr)
Inventor
李志军
Original Assignee
海信科龙电器股份有限公司
广东科龙空调器有限公司
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Publication date
Application filed by 海信科龙电器股份有限公司, 广东科龙空调器有限公司 filed Critical 海信科龙电器股份有限公司
Publication of WO2012139429A1 publication Critical patent/WO2012139429A1/zh

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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve

Definitions

  • the invention belongs to the technical field of air conditioners, and in particular relates to a heat pump air conditioner with a defrosting function.
  • the existing air source heat pump type inverter air conditioner performs heating operation in a low temperature environment.
  • the evaporation temperature of the outdoor heat exchanger is lower than zero, the humidity of the air reaches a certain condition, and the surface of the fin of the outdoor heat exchanger gradually becomes After the frost layer reaches a certain level, the heat exchange effect drops sharply. At this time, the defrosting operation needs to be performed.
  • the present invention provides a defrosting frequency conversion heat pump air conditioner which has no heat loss during defrosting and can maintain a constant indoor temperature. Small temperature fluctuations improve indoor comfort.
  • the technical solution of the present invention is: a defrosting frequency conversion heat pump air conditioner, including an indoor unit and an outdoor unit, the outdoor unit includes a condenser, a fan, a reversing four-way valve, a throttle mechanism and a compressor, wherein the condenser end
  • the connecting pipe and the throttle mechanism are connected to the indoor unit, and the other end is connected to the compressor and the indoor unit via a four-way valve, and a shut-off valve is provided between the indoor unit and the condenser and the four-way valve, and the throttle mechanism and the condenser are provided.
  • the duct heating device is mounted on the connecting pipe.
  • the heating method of the duct heating device is resistance wire heating, electromagnetic heating or PTC heating.
  • the compressor is a compressor having a variable frequency speed control function.
  • the principle of the invention is that when the defrost variable frequency heat pump air conditioner needs defrosting, the four-way valve does not operate to switch the flow direction of the refrigerant, but the operating frequency (speed) of the compressor is reduced, the flow of the refrigerant gas flow is maintained, and the throttle mechanism and the condensation are performed.
  • the heater is connected to the connecting pipe of the device, and the flowing refrigerant air brings the heat generated by the heater into the melting frost layer of the condenser, and the excess heat is released into the room with the refrigerant, which can better maintain the indoor temperature constant and the temperature fluctuation is smaller, indoor More comfortable.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention.
  • a defrosting inverter heat pump air conditioner includes an indoor unit 20 and an outdoor unit 10, and the outdoor unit 10 includes a condenser 1 , the fan 2 , the reversing four-way valve 3 , the throttle mechanism 5 and the compressor 8 , wherein one end of the condenser 1 is connected to the indoor unit 20 through the connecting pipe 7 , the throttle mechanism 5 , and the other end passes through the four-way valve 3 Connect the compressor 8 and the indoor unit 20, and a shut-off valve 6 is provided between the indoor unit 20 and the condenser 1 and the four-way valve 3, and a connecting pipe is provided between the throttle mechanism 5 and the condenser 1 A duct heating device 4 is provided between the throttle mechanism 5 and the condenser 1 .
  • the duct heating device 4 is mounted on the connecting duct 7.
  • the heating method of the duct heating device 4 is any one of electric resistance wire heating, electromagnetic heating or PTC heating.
  • the compressor 8 is a compressor having a variable frequency speed control function.
  • the refrigerant flow circulates in the direction indicated by the arrow.
  • the outdoor unit 10 The surface of the fin of the condenser 1 generates a frost layer, and the heating efficiency of the air conditioner that is laminated to a certain thickness is drastically lowered, and the air conditioner needs to perform the defrosting operation, and the air conditioner is reversing the four-way valve.
  • the flow direction of the refrigerant is constant, the compressor reduces the operating frequency (speed), and the flow of the refrigerant gas is maintained.
  • the pipe heating device 4 energizes to generate heat, and the heat flows into the condenser with the refrigerant.

Description

一种除霜变频热泵空调器
技术领域
本发明属于空调器技术领域，尤其涉及一种具有除霜功能的热泵空调器。
背景技术
现有空气源热泵型变频空调器，在低温环境中进行制热运行，当室外换热器的冷媒蒸发温度低于零度，空气的湿度达到一定的条件，室外换热器翅片表面就会逐渐结霜，霜层达到一定程度后，换热效果急剧下降，这时就需要进行化霜运行，通过四通阀的动作，冷媒流向改变，高温高压气体流入室外换热器，冷却节流后的低压低温液体需要在室内蒸发吸取一定热量维持系统平衡，这样导致室内供热不连续，甚至还会导致室内热量损失，当除霜完成后冷媒流向再次切换时，还要损失部分热量平衡蒸发器的温度提升需求，压缩机做功消耗能量建立压力稳定平衡，进一步损失热量和加剧室温波动，这个是传统有换向除霜型热泵空调存在的固有问题。
发明内容
针对上述传统有换向除霜型热泵空调器存在的问题，本发明提供一种除霜变频热泵空调器，该热泵空调器在除霜过程中无热量损失，能很好的维持室内温度恒定，温度波动小，提高了室内舒适性。
本发明的技术方案为：一种除霜变频热泵空调器，包括室内机和室外机，室外机包括冷凝器、风扇、换向四通阀、节流机构和压缩机，其中所述冷凝器一端通过连接管道、节流机构与室内机连接，另一端经过四通阀连接压缩机和室内机，在室内机与冷凝器和四通阀之间均设有截止阀，在节流机构和冷凝器之间设有连接管道，在节流机构与冷凝器之间设有管道加热装置。
所述管道加热装置装设在连接管道上。
所述管道加热装置的加热方式为电阻丝加热、电磁加热或 PTC 加热。
所述压缩机为具有变频调速功能的压缩机。
本发明原理是当除霜变频热泵空调器需要除霜时，四通阀不动作进行冷媒的流向切换，只是压缩机的运行频率（速度）降低，维持冷媒气流的流动，在节流机构和冷凝器的连接管上装置加热器，流动的冷媒气流把加热器产生的热量带入冷凝器融化霜层，多余热量随冷媒进入室内放出，能更好地维持室内温度恒定，温度波动更小，室内舒适性更高。
附图说明
图 1 为本发明实施例结构示意图。
具体实施方式
下面结合附图和具体实施方式对本发明做进一步的说明。
如图 1 所示，一种除霜变频热泵空调器，包括室内机 20 和室外机 10 ，室外机 10 包括冷凝器 1 、风扇 2 、换向四通阀 3 、节流机构 5 和压缩机 8 ，其中所述冷凝器 1 一端通过连接管道 7 、节流机构 5 与室内机 20 连接，另一端经过四通阀 3 连接压缩机 8 和室内机 20 ，在室内机 20 与冷凝器 1 和四通阀 3 之间均设有截止阀 6 ，在节流机构 5 和冷凝器 1 之间设有连接管道 7 ，在节流机构 5 与冷凝器 1 之间设有管道加热装置 4 。
所述管道加热装置 4 装设在连接管道 7 上。
所述管道加热装置 4 的加热方式为电阻丝加热、电磁加热或 PTC 加热中的任一种方式。
所述压缩机 8 为具有变频调速功能的压缩机。
如图 1 ，空调器在进行制热运行时，冷媒流动按箭头指示方向循环流动，当室外温湿度达到条件，室外机 10 的冷凝器 1 的翅片表面会产生霜层，霜层积到一定厚度空调器的制热效率急剧下降，空调器需要进行除霜运行，此时空调器换向四通阀 3 无需换向，冷媒流动方向不变，压缩机降低运行频率（速度），维持冷媒气流流动，同时管道加热装置 4 通电工作产生热量，热量随冷媒流动进入冷凝器 1 融化霜层，多余热量经压缩机后进入室内机放出，直到冷凝器 1 的霜层完全融化，压缩机升频至正常制热频率运行，整个除霜过程没有冷媒换向流动，没有压力重新建立平衡损失。能更好地维持室内温度恒定，温度波动更小，室内舒适性更高。
上述实施例仅是本发明除霜的一个应用例子，其它形式的空调器同样可以实现，比如整体式热泵型空调器等，也应在本发明所要求保护的范围之内。

Claims (4)

  1. 一种除霜变频热泵空调器，包括室内机（ 20 ）和室外机（ 10 ），室外机（ 10 ）包括冷凝器（ 1 ）、风扇（ 2 ）、换向四通阀（ 3 ）、节流机构（ 5 ）和压缩机（ 8 ），其中所述冷凝器（ 1 ）一端通过连接管道（ 7 ）、节流机构（ 5 ）与室内机（ 20 ）连接，另一端经过四通阀（ 3 ）连接压缩机（ 8 ）和室内机（ 20 ），在室内机（ 20 ）与冷凝器（ 1 ）和四通阀（ 3 ）之间均设有截止阀（ 6 ），在节流机构（ 5 ）和冷凝器（ 1 ）之间设有连接管道（ 7 ），其特征在于：在节流机构（ 5 ）与冷凝器（ 1 ）之间设有管道加热装置（ 4 ）。
  2. 根据权利要求 1 所述的除霜变频热泵空调器，其特征在于：所述管道加热装置（ 4 ）装设在连接管道（ 7 ）上。
  3. 根据权利要求 1 所述的除霜变频热泵空调器，其特征在于：所述管道加热装置（ 4 ）的加热方式为电阻丝加热、电磁加热或 PTC 加热。
  4. 根据权利要求 1-3 中任一项所述的除霜变频热泵空调器，其特征在于：所述压缩机（ 8 ）为具有变频调速功能的压缩机。
PCT/CN2012/070394 2011-04-12 2012-01-16 一种除霜变频热泵空调器 WO2012139429A1 (zh)

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* Cited by examiner, † Cited by third party
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CN106642793A (zh) * 2017-03-08 2017-05-10 王维洲 不间断制热多功能空气源热泵机组
CN108386960A (zh) * 2018-01-22 2018-08-10 青岛海尔空调器有限总公司 一种不停机除霜空调及不停机除霜方法
CN113251474A (zh) * 2021-04-28 2021-08-13 青岛海尔空调器有限总公司 双压缩机空调器
CN108386960B (zh) * 2018-01-22 2024-04-26 青岛海尔空调器有限总公司 一种不停机除霜空调及不停机除霜方法

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CN102147177A (zh) * 2011-04-12 2011-08-10 海信科龙电器股份有限公司 一种除霜变频热泵空调器
CN103925673A (zh) * 2013-01-11 2014-07-16 邯郸美的制冷设备有限公司 空调器的化霜控制方法
CN103256677A (zh) * 2013-06-08 2013-08-21 余永吉 一种空调冬季化霜和加热的方法和装置
CN103388944A (zh) * 2013-08-02 2013-11-13 广东美的制冷设备有限公司 空调系统及其控制方法
CN104791969B (zh) * 2015-04-30 2017-10-13 广东美的制冷设备有限公司 温度补偿装置和空调器
CN105423447A (zh) * 2015-12-10 2016-03-23 广东志高空调有限公司 一种用于热泵型空调器的室外机、热泵型空调器
CN108759154A (zh) * 2018-07-02 2018-11-06 广东纽恩泰新能源科技发展有限公司 一种具有加热除霜功能的热泵系统
CN109668219B (zh) * 2018-11-27 2023-06-16 珠海格力电器股份有限公司 空调器室外机冷凝器、空调器及除霜方法
CN110360689A (zh) * 2019-07-29 2019-10-22 青岛海尔空调器有限总公司 电磁加热装置、流体管道和温度调节设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000146373A (ja) * 1998-11-16 2000-05-26 Funai Electric Co Ltd 空気調和機の除霜装置
CN1389693A (zh) * 2001-06-06 2003-01-08 邓兆山 热泵空调热管辅助加热器装置
JP2004251567A (ja) * 2003-02-21 2004-09-09 Fujitsu General Ltd 空気調和機
CN1888748A (zh) * 2005-06-27 2007-01-03 海尔集团公司 低温热泵空调及其自动除霜方法
CN201387080Y (zh) * 2009-04-21 2010-01-20 海信（山东）空调有限公司 一种冷暖型变频空调器
CN102147177A (zh) * 2011-04-12 2011-08-10 海信科龙电器股份有限公司 一种除霜变频热泵空调器
CN202002245U (zh) * 2011-04-12 2011-10-05 海信科龙电器股份有限公司 一种除霜变频热泵空调器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2809531Y (zh) * 2005-06-27 2006-08-23 海尔集团公司 低温热泵空调

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000146373A (ja) * 1998-11-16 2000-05-26 Funai Electric Co Ltd 空気調和機の除霜装置
CN1389693A (zh) * 2001-06-06 2003-01-08 邓兆山 热泵空调热管辅助加热器装置
JP2004251567A (ja) * 2003-02-21 2004-09-09 Fujitsu General Ltd 空気調和機
CN1888748A (zh) * 2005-06-27 2007-01-03 海尔集团公司 低温热泵空调及其自动除霜方法
CN201387080Y (zh) * 2009-04-21 2010-01-20 海信（山东）空调有限公司 一种冷暖型变频空调器
CN102147177A (zh) * 2011-04-12 2011-08-10 海信科龙电器股份有限公司 一种除霜变频热泵空调器
CN202002245U (zh) * 2011-04-12 2011-10-05 海信科龙电器股份有限公司 一种除霜变频热泵空调器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106642793A (zh) * 2017-03-08 2017-05-10 王维洲 不间断制热多功能空气源热泵机组
CN108386960A (zh) * 2018-01-22 2018-08-10 青岛海尔空调器有限总公司 一种不停机除霜空调及不停机除霜方法
CN108386960B (zh) * 2018-01-22 2024-04-26 青岛海尔空调器有限总公司 一种不停机除霜空调及不停机除霜方法
CN113251474A (zh) * 2021-04-28 2021-08-13 青岛海尔空调器有限总公司 双压缩机空调器

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