WO2011094985A1 - 空调器及其制冷剂的处理方法 - Google Patents

空调器及其制冷剂的处理方法 Download PDF

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Publication number
WO2011094985A1
WO2011094985A1 PCT/CN2010/073955 CN2010073955W WO2011094985A1 WO 2011094985 A1 WO2011094985 A1 WO 2011094985A1 CN 2010073955 W CN2010073955 W CN 2010073955W WO 2011094985 A1 WO2011094985 A1 WO 2011094985A1
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WO
WIPO (PCT)
Prior art keywords
air conditioner
valve
refrigerant
shutoff valve
state
Prior art date
Application number
PCT/CN2010/073955
Other languages
English (en)
French (fr)
Inventor
张辉
钟明生
黄辉
金海元
韩鹏
刘畅
王苗
Original Assignee
珠海格力电器股份有限公司
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Publication of WO2011094985A1 publication Critical patent/WO2011094985A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B45/00Arrangements for charging or discharging refrigerant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2345/00Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/006Details for charging or discharging refrigerants; Service stations therefor characterised by charging or discharging valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00Problems to be solved
    • F25B2500/27Problems to be solved characterised by the stop of the refrigeration cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/01Timing

Definitions

  • the present invention relates to the field of electrical appliances, and more particularly to an air conditioner and a method of treating the same.
  • BACKGROUND OF THE INVENTION For an air conditioner using a combustible explosive refrigerant (such as R290, R32, etc.), the residual refrigerant on the indoor side of the air conditioner has a safety hazard. In order to improve the safety of the air conditioner, it is considered that when the air conditioner is not working, Ensure that the amount of refrigerant remaining on the indoor side is as small as possible or not.
  • the indoor unit and the outdoor unit need to be connected by a connecting pipe to form a closed loop, and the air conditioner is provided with a large-sized valve or a quick joint for taking over on the outdoor unit.
  • the outdoor side and the indoor side are always in communication.
  • refrigerant is always stored on the indoor side.
  • One solution known at present is to add a solenoid valve to the air conditioner outdoor unit size valve (or quick connector) in order to cut off the communication state of the indoor and outdoor unit when it is not working, and the solenoid valve when the air conditioner is not working.
  • the present invention is directed to a method for processing an air conditioner and a refrigerant thereof, which can solve the problems in the related art that the refrigerant remains in the indoor unit after the air conditioner is turned off, resulting in relatively low safety.
  • an air conditioner is provided.
  • An air conditioner includes: an indoor unit; an outdoor unit; a refrigerant circulation circuit that connects the indoor unit and the outdoor unit, and includes: a gas line provided with a first shut-off valve; and a liquid line provided with a second shut-off valve; the controller is electrically connected to the first shut-off valve and the second shut-off valve, detects the running state of the air conditioner after receiving the shutdown signal, and controls the second cut-off valve to be cut off when the air conditioner is in the cooling working state Then control the first stop valve to cut off.
  • the gas pipeline comprises: a first gas pipe connecting pipe connected between the first gas pipe of the outdoor unit and the indoor unit;
  • the liquid pipeline comprises: a first liquid pipe connecting pipe connected to the first liquid pipe of the outdoor machine and the indoor Between the machines, wherein the first shutoff valve is disposed on the first air pipe; the second shutoff valve is disposed on the first liquid pipe.
  • the air conditioner further includes: a pressure detector disposed at a pipeline position where the first shutoff valve is located, electrically connected to the controller, and detecting a pressure value at the first shutoff valve after the second shutoff valve is closed, wherein When the pressure value is zero, the controller controls the first shutoff valve to be in an off state.
  • the air conditioner further comprises: a timer electrically connected to the controller, starting timing after the second shutoff valve is closed, wherein the controller controls the first shutoff valve to be off after the timer expires for a predetermined time .
  • the first shut-off valve and/or the second shut-off valve are solenoid valves.
  • the controller controls the air conditioner to be in a cooling state when the air conditioner is in a heating operation state.
  • the method for processing an air conditioner refrigerant includes: detecting a shutdown signal of the air conditioner; determining an operating state of the air conditioner; and refrigerating the refrigerant to the air conditioner when the operating state of the air conditioner is a cooling state
  • the liquid line of the circuit performs a first cut-off process; and when the predetermined condition is satisfied, the gas line of the refrigerant circuit is subjected to a second cut-off process.
  • the method further comprises: switching the air conditioner to a cooling operation state.
  • performing the first cut-off process on the liquid pipeline of the refrigerant circulation circuit of the air conditioner comprises: performing a first cut-off process on the liquid pipeline of the refrigerant circulation circuit on the outdoor unit side of the air conditioner; and gas to the refrigerant circulation loop
  • the second cut-off process of the pipeline includes: the refrigerant on the outdoor unit side of the air conditioner
  • the gas line of the circulation circuit performs a second cut-off process.
  • the air conditioner provided by the present invention comprises: an indoor unit; an outdoor unit; a refrigerant circulation circuit connecting the indoor unit and the outdoor unit, comprising: a gas line, which is provided with a first stop valve; and a liquid line, which is provided with a second stop valve;
  • the controller is connected to the first shut-off valve and the second shut-off valve, and detects the running state of the air conditioner after receiving the shutdown signal, and when the air conditioner is in the cooling working state, first closes the second shut-off valve, and then closes the first Shut-off valve.
  • FIG. 1 is a schematic view of an air conditioner according to an embodiment of the present invention
  • FIG. 2 is a flow chart of a method for processing an air conditioner refrigerant according to an embodiment of the present invention
  • FIG. 4 is a flow chart showing a method of processing an air conditioner refrigerant according to a second embodiment of the present invention.
  • FIG. 1 is a schematic view of an air conditioner according to an embodiment of the present invention.
  • the indoor unit 10 and the outdoor unit 40 are connected to each other through a connecting pipe to form a closed loop.
  • a solenoid valve is disposed on the gas line and the liquid line of the refrigerant circulation circuit, and the electromagnetic valve is turned off when the power is turned off.
  • the control of the working state of the valve and the whole machine first cuts off the passage of the refrigerant from the outdoor unit to the indoor unit, and at the same time, keeps the passage of the indoor refrigerant to the outdoor side, and waits for the refrigerant in the room to flow into the outdoor side and then closes the other of the indoor and outdoor communication. In the passage, all the refrigerant is enclosed on the outdoor side, and almost all of the refrigerant is recovered on the outdoor side. When the air conditioner is not working, there is basically no refrigerant on the indoor side to improve safety. As shown in FIG.
  • an air conditioner includes: an indoor unit 10; an outdoor unit 40; a refrigerant circulation circuit that connects the indoor unit 10 and the outdoor unit 40, and includes: a gas line, which is provided with a first cutoff a valve 43; a liquid line, provided with a second shut-off valve 431; a controller, electrically connected to the first shut-off valve 43 and the second shut-off valve 431, detecting the operating state of the air conditioner after receiving the shutdown signal, at the air conditioner In the cooling operation state, the second shutoff valve 431 is first controlled to be closed, and then the first shutoff valve 43 is controlled to be closed.
  • the invention realizes the prevention of residual refrigerant in the indoor side of the air conditioner by providing a shut-off valve on the pipeline on the refrigerant circulation loop, and controlling the closing sequence of the shut-off valve by the controller, thereby achieving the purpose of enhancing the safety of the air conditioner.
  • the gas pipeline may include: a first gas pipe connecting pipe 200 connected between the first gas pipe 220 of the outdoor unit 40 and the indoor unit; the liquid pipe may include: the first liquid pipe connecting pipe 300 is connected to the outdoor unit 40 Between the first liquid pipe 230 and the indoor unit, the first shutoff valve 43 is disposed on the first gas pipe 220; the second shutoff valve 431 is disposed on the first liquid pipe 230.
  • the shut-off valve may be installed on the indoor unit side or on the outdoor unit side. Since the shut-off valve is installed on the indoor unit side, there may be residual gas or liquid in the gas line or the liquid line, so preferably, in the present invention, the shut-off valve is installed on the outdoor unit side.
  • the solenoid valve is disposed in front of the outdoor unit size valve, that is, the first solenoid valve 43 is disposed in front of the large valve 41 connected to the air tube connection pipe 20, and the liquid pipe connection pipe 30 is provided.
  • a second solenoid valve 431 is disposed in front of the connected small valve 42.
  • the air conditioner may further include: a pressure detector disposed at a pipeline position where the first shutoff valve 43 is located, electrically connected to the controller, and detecting the pressure value at the first shutoff valve 43 after the second shutoff valve 431 is closed, Wherein, when the pressure value is zero, the controller controls the first shutoff valve 43 to be in an off state.
  • the air conditioner may further include: a timer electrically connected to the controller, and starting timing after the second shutoff valve 431 is closed, wherein after the timer counts for a predetermined time, the controller controls the first shutoff valve 43 to Cutoff status.
  • the first shutoff valve 43 and/or the second shutoff valve 431 are solenoid valves.
  • the controller controls the air conditioner to be in a cooling state.
  • the air conditioner in this embodiment includes: an auxiliary capillary 44, a check valve 45, a capillary 46, an outdoor heat exchanger 47, a compressor 48, and a four-way valve 49.
  • a method of processing an air conditioner refrigerant is provided.
  • Fig. 2 is a flow chart showing a method of processing an air conditioner refrigerant according to an embodiment of the present invention. As shown in FIG.
  • the method includes the following steps: S202 to S208: Step S202, detecting a shutdown signal of the air conditioner; Step S204, determining an operating state of the air conditioner; Step S206, operating state of the air conditioner is a cooling state
  • Step S202 detecting a shutdown signal of the air conditioner
  • Step S204 determining an operating state of the air conditioner
  • Step S206 operating state of the air conditioner is a cooling state
  • the indoor unit and the outdoor unit are connected to each other through a connecting pipe to form a closed loop, and the outdoor unit is provided with a size valve or a quick joint for taking over.
  • a shut-off valve is respectively disposed on the connecting pipe and the connecting pipe of the liquid pipe, and the closing sequence of the two electromagnetic valves is controlled when the air conditioner is turned off, and the passage of the refrigerant from the outdoor unit to the indoor unit is first cut off, while the indoor refrigerant flow to the room is reserved.
  • the refrigerant in the indoor chamber flows into the outdoor side, and then the other passage communicating between the inside and the outside is closed, and the refrigerant can be completely enclosed on the outdoor side.
  • the method may further include: switching the air conditioner to a cooling operation state.
  • the predetermined condition may be determined as follows: whether the time after the first off process of the liquid line of the refrigerant circuit of the air conditioner reaches a predetermined time; or, the pressure of the gas line of the refrigerant circuit is detected Whether the value is zero.
  • the first cut-off process of the liquid pipeline of the refrigerant circulation circuit of the air conditioner may be: performing a first cut-off process on the liquid pipeline of the refrigerant circulation loop of the outdoor unit side of the air conditioner; and gas of the refrigerant circulation loop
  • the second cut-off process of the pipeline may be: performing a second cut-off process on the gas pipeline of the refrigerant circulation circuit on the outdoor unit side of the air conditioner.
  • Fig. 3 is a flow chart showing a method of processing an air conditioner refrigerant according to a first embodiment of the present invention.
  • the indoor unit 10 and the outdoor unit 40 are connected by a gas pipe connecting pipe 20 and a liquid pipe connecting pipe 30 to form a closed circuit.
  • the outdoor unit is provided with a large valve 41 and a small valve 42 for taking over, wherein the large valve 41 and the gas pipe are provided.
  • the connecting pipe 20 is connected at the end, and the small valve 42 is connected to the end of the liquid pipe connecting pipe 30.
  • a first solenoid valve 43 is disposed in front of the large valve 41, and a second solenoid valve 431 is disposed in front of the small valve 42.
  • Step S301 Receive a shutdown signal.
  • the air conditioner receives the shutdown signal, and the shutdown signal includes a normal shutdown and an abnormal shutdown.
  • Step S302 determining an air conditioning operating state.
  • step S303 it is determined whether the operating state of the air conditioner is a cooling operation state, and in the cooling state, step S304 is performed; otherwise, the process proceeds to step S307.
  • step S304 the second shutoff valve 431 is closed.
  • the air conditioner receives the shutdown signal, and the controller controls the second electromagnetic valve 431 to close, and cuts off the passage of the outdoor unit refrigerant into the indoor unit, and the indoor refrigerant can still be recycled into the outdoor unit through the large valve.
  • step S305 determining the delay time.
  • the predetermined time is set by the timer to determine whether the delay time has reached the predetermined time.
  • step 4 is performed S306, otherwise step S305 is continued.
  • the indoor unit side Almost all of the refrigerant enters the outdoor unit.
  • the first shutoff valve 43 is closed. When almost all of the indoor unit side refrigerant enters the outdoor unit, the first electromagnetic valve 43 is closed again, and the air conditioner controls the entire machine.
  • the embodiment of the invention realizes controlling the closing sequence of the two electromagnetic valves when the air conditioner is turned off, and completely encloses the refrigerant on the outdoor side. After the two solenoid valves of the air conditioner are turned off, the air conditioner executes the whole machine, and the shutdown process is successfully completed. Step S307, controlling the air conditioner to perform the cooling operation. When the operating state of the air conditioner is in the heating state, The controller controls the air conditioner to switch to the cooling operation state.
  • Fig. 4 is a flow chart showing a method of processing an air conditioner refrigerant according to a second embodiment of the present invention. As shown in FIG. 4, the method includes the following steps: Step S401 to step S404 are the same as steps S301 to S304. In step S403, step S404 is performed in the cooling state, otherwise, the process proceeds to step S407. Step S405, detecting whether the pressure value at the first shutoff valve 43 is zero.
  • step 4 is performed S406, otherwise, step 4 is continued to S405.
  • a pressure detecting means is added to the first shutoff valve 43.
  • the air conditioner receives the shutdown signal, controls the second solenoid valve 431 to close, and when the pressure detecting device on the first shutoff valve 43 detects that the pressure is 0, the first shutoff valve 43 is controlled to be closed.
  • the synchronization 4 is gathered S306.
  • Step S407 controlling the air conditioner to perform the cooling operation.
  • the air conditioner receives the shutdown signal, controls the air conditioner to perform the cooling operation, and then closes the second shutoff valve 431.
  • the control A shut-off valve 43 When the pressure detecting device on the first shutoff valve 43 detects that the pressure is 0, the control A shut-off valve 43 is closed, and finally the whole machine (the control mode after the cooling operation is the same as the cooling state). From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
  • the indoor side refrigerant is recovered by the technical solution processing, At least 95% of the refrigerant can be recovered to the outdoor side, and the residual refrigerant on the indoor side is negligible when the air conditioner is not working, achieving the desired purpose.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Description

空调器及其制冷剂的处理方法 技术领域 本发明涉及电器领域, 更具体地, 涉及一种空调器及其制冷剂的处理方 法。 背景技术 对于使用可燃可爆型制冷剂 (如 R290、 R32等)的空调器, 空调器室内 侧残留的制冷剂具有安全隐患, 为了提高空调使用的安全性, 考虑在空调器 不工作时, 应该保证室内侧存留的制冷剂含量尽可能少甚至于没有。 现有的分体式房间空调器, 室内机与室外机需要通过连接管进行对接形 成封闭回路, 这类空调器在室外机上设置了用于接管的大小阀门或是快速接 头。 当空调器不工作时, 室外侧与室内侧一直连通, 为了保持压力平衡, 在 室内侧会一直存积有制冷剂。 目前已知的一种解决方式是:为了切断室内外机在不工作时的连通状态, 在空调室外机大小阀门 (或快速接头) 前各增加一个电磁阀, 并且在空调器 不工作时电磁阀处于关闭状态, 切断制冷剂的流动, 使室外侧制冷剂封闭在 室外换热器及管路中,但由于空调工作时还有 20%-40%的制冷剂会在室内侧 循环, 空调停止工作电磁阀切断后这部分制冷剂会一直留在室内侧直至再次 开机。 针对相关技术中空调器在关机后室内机残留有制冷剂, 导致安全性比较 氐的问题, 目前尚未提出有效的解决方案。 发明内容 本发明旨在提供一种空调器及其制冷剂的处理方法, 能够解决相关技术 中空调器在关机后室内机残留有制冷剂, 导致安全性比较低等问题。 根据本发明的一个方面, 提供了一种空调器。 根据本发明的空调器, 包括: 室内机; 室外机; 制冷剂循环回路, 连接 室内机和室外机, 包括: 气体管路, 设置有第一截止阀; 液体管路, 设置有 第二截止阀; 控制器, 与第一截止阀和第二截止阀电连接, 在接收到关机信 号后检测空调器的运行状态, 在空调器处于制冷工作状态时, 先控制第二截 止阀截止, 然后再控制第一截止阀截止。 优选地, 气体管路包括: 第一气管连接管, 连接于室外机的第一气管和 室内机之间; 液体管路包括: 第一液管连接管连接于室外机的第一液管和室 内机之间, 其中, 第一截止阀设置于第一气管上; 第二截止阀设置于第一液 管上。 优选地, 空调器还包括: 压力检测器, 设置在第一截止阀所在的管路位 置, 与控制器电连接, 在关闭第二截止阀后, 检测第一截止阀处的压力值, 其中, 在压力值为零时, 控制器控制第一截止阀为截止状态。 优选地, 空调器还包括: 定时器, 与控制器电连接, 在第二截止阀关闭 之后开始计时, 其中, 在定时器计时的时间达到预定时间之后, 控制器控制 第一截止阀为截止状态。 优选地, 第一截止阀和 /或第二截止阀为电磁阀。 优选地,在空调器处于制热运行状态时,控制器控制空调器为制冷状态。 根据本发明的另一个方面, 提供了一种空调器制冷剂的处理方法。 才艮据本发明的空调器制冷剂的处理方法包括:检测到空调器的关机信号; 判断空调器的运行状态; 在空调器的运行状态为制冷状态的情况下, 对空调 器的制冷剂循环回路的液体管路进行第一截止处理; 在满足预定条件的情况 下, 对制冷剂循环回路的气体管路进行第二截止处理。 优选地, 在空调器的运行状态为制热状态的情况下, 方法还包括: 将空 调器切换到制冷运行状态。 优选地, 按照以下方式判断是否满足预定条件: 检测空调器的制冷剂循 环回路的液体管路进行第一截止处理之后的时间是否达到预定时间; 或, 检 测制冷剂循环回路的气体管路的压力值是否为零。 优选地,对空调器的制冷剂循环回路的液体管路进行第一截止处理包括: 对空调器室外机侧的制冷剂循环回路的液体管路进行第一截止处理; 对制冷 剂循环回路的气体管路进行第二截止处理包括: 对空调器室外机侧的制冷剂 循环回路的气体管路进行第二截止处理。 本发明提供的空调器包括: 室内机; 室外机; 制冷剂循环回路, 连接室 内机和室外机, 包括: 气体管路, 设置有第一截止阀; 液体管路, 设置有第 二截止阀; 控制器, 与第一截止阀和第二截止阀相连接, 在接收到关机信号 后检测空调器的运行状态, 在空调器处于制冷工作状态时, 先关闭第二截止 阀, 然后再关闭第一截止阀。 通过本发明, 克服了相关技术中空调器在关机 后室内机残留有制冷剂, 导致安全性比较低的问题, 进而达到了提高空调器 安全性的效果。 附图说明 附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发明的 示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在 附图中: 图 1是根据本发明实施例的空调器的示意图; 图 2是 居本发明实施例的空调器制冷剂的处理方法的流程图; 图 3是 居本发明实施例一的空调器制冷剂的处理方法的流程图; 图 4是 居本发明实施例二的空调器制冷剂的处理方法的流程图。 具体实施方式 下面将参考附图并结合实施例, 来详细说明本发明。 图 1是根据本发明实施例的空调器的示意图。 本发明分体式房间空调器, 室内机 10与室外机 40通过连接管进行对接 形成封闭回路, 本实施例通过在制冷剂循环回路的气体管路和液体管路上设 置电磁阀, 关机时通过对电磁阀和整机工作状态的控制, 先切断制冷剂从室 外机往室内机的通路, 同时保留室内制冷剂流向室外侧的通路, 待室内的制 冷剂流入室外侧后再关闭室内外连通的另一条通路, 将制冷剂全部封闭在室 外侧, 使几乎全部的冷媒回收在室外侧。 空调器不工作时, 室内侧基本上没 有制冷剂, 提高安全性。 如图 1所示, 才艮据本发明的空调器, 包括: 室内机 10; 室外机 40; 制 冷剂循环回路, 连接室内机 10和室外机 40, 包括: 气体管路, 设置有第一 截止阀 43 ; 液体管路, 设置有第二截止阀 431 ; 控制器, 与第一截止阀 43 和第二截止阀 431电连接, 在接收到关机信号后检测空调器的运行状态, 在 空调器处于制冷工作状态时, 先控制第二截止阀 431截止, 然后再控制第一 截止阀 43截止。 本发明通过在制冷剂循环回路上的管路上设置截止阀, 并且通过控制器 控制截止阀的关闭顺序, 实现了防止空调器室内侧残存制冷剂, 进而达到了 增强空调器安全性的目的。 其中, 气体管路可以包括: 第一气管连接管 200 , 连接于室外机 40的第 一气管 220和室内机之间; 液体管路可以包括: 第一液管连接管 300连接于 室外机 40的第一液管 230和室内机之间, 其中, 第一截止阀 43设置于第一 气管 220上; 第二截止阀 431设置于第一液管 230上。 本发明中截止阀可以安装在室内机侧, 也可以安装在室外机侧, 由于截 止阀安装在室内机侧时, 气体管路或者液体管路里会有残存的气体或液体, 故优选地, 本发明中截止阀安装在室外机侧, 实施例中在室外机大小阀门前 设置电磁阀, 即在与气管连接管 20相连的大阀门 41前设置第一电磁阀 43 , 与液管连接管 30相连的小阀门 42前设置第二电磁阀 431。 上述空调器还可以包括: 压力检测器, 设置在第一截止阀 43 所在的管 路位置, 与控制器电连接, 在关闭第二截止阀 431 后, 检测第一截止阀 43 处的压力值, 其中, 在压力值为零时, 控制器控制第一截止阀 43 为截止状 态。 其中, 空调器还可以包括: 定时器, 与控制器电连接, 在第二截止阀 431 关闭之后开始计时, 其中, 在定时器计时的时间达到预定时间之后, 控制器 控制第一截止阀 43为截止状态。 可选地, 第一截止阀 43和 /或第二截止阀 431为电磁阀。 其中, 在空调器处于制热运行状态时, 控制器控制空调器为制冷状态。 如图 1所示, 本实施例中的空调器包括: 辅助毛细管 44、 单向阀 45、 毛细管 46、 室外换热器 47、 压缩机 48和四通阀 49。 根据本发明的实施例, 提供了一种空调器制冷剂的处理方法。 图 2是 居本发明实施例的空调器制冷剂的处理方法的流程图。 如图 2所示, 该方法包括如下步 4聚 S202至 S208: 步骤 S202 , 检测到空调器的关机信号; 步骤 S204 , 判断空调器的运行状态; 步骤 S206, 在空调器的运行状态为制冷状态的情况下, 对空调器的制冷 剂循环回路的液体管路进行第一截止处理; 步骤 S208, 在满足预定条件的情况下, 对制冷剂循环回路的气体管路进 行第二截止处理。 本实施例中分体式房间空调器, 室内机与室外机通过连接管进行对接形 成封闭回路, 在室外机设置用于接管的大小阀门或是快速接头。 在与气管连 接管和液管连接管上分别设置截止阀, 在空调器关机时控制两个电磁阀的关 闭顺序, 先切断制冷剂从室外机往室内机的通路, 同时保留室内制冷剂流向 室外侧的通路, 待室内的制冷剂流入室外侧后再关闭室内外连通的另一条通 路, 能够将制冷剂全部封闭在室外侧。 其中, 在空调器的运行状态为制热状态的情况下, 方法还可以包括: 将 空调器切换到制冷运行状态。 其中, 可以按照以下方式判断是否满足预定条件为: 空调器的制冷剂循 环回路的液体管路进行第一截止处理之后的时间是否达到预定时间; 或, 检 测制冷剂循环回路的气体管路的压力值是否为零。 其中 ,对空调器的制冷剂循环回路的液体管路进行第一截止处理可以为: 对空调器室外机侧的制冷剂循环回路的液体管路进行第一截止处理; 对制冷 剂循环回路的气体管路进行第二截止处理可以为: 对空调器室外机侧的制冷 剂循环回路的气体管路进行第二截止处理。 下面结合实例对发明实施例的实现过程进行详细描述。 图 3是 居本发明实施例一的空调器制冷剂的处理方法的流程图。 本实施例中, 室内机 10与室外机 40通过气管连接管 20和液管连接管 30连接形成封闭回路, 室外机上设置了用于接管的大阀门 41和小阀门 42 , 其中大阀门 41与气管连接管 20—端连接, 小阀门 42与液管连接管 30—端 连接。 在大阀门 41 前设置第一电磁阀 43 , 与小阀门 42 前设置第二电磁阀 431。 如图 3所示, 该方法包括如下步 4聚: 步骤 S301 , 接收到关机信号。 空调器接收到关机信号, 关机信号包括正 常关机和非正常关机。 步骤 S302 , 判断空调运行状态。 步骤 S303 , 判断空调的运行状态是否是制冷运行状态, 在制冷状态下执 行步骤 S304, 否则, 转入步骤 S307。 步骤 S304, 关闭第二截止阀 431。 本实施例中在制冷状态下, 空调器接收到关机信号, 控制器控制第二电 磁阀 431关闭, 切断室外机制冷剂进入室内机的通道, 同时室内制冷剂仍可 经大阀门回收进室外机, 步骤 S305 , 判断延迟时间。 由定时器设置预定时间, 判断延时时间是否 到达预定时间。 当延时时间到达预定时间时, 执行步 4聚 S306, 否则继续执行 步骤 S305。 本发明实施例中, 经过一定延时时间 (依机型制冷量不同具体定, 对 1P 机时间约 10秒; 1.5P空调约 12秒; 2P及以上, 约 15秒), 此时室内机侧制 冷剂几乎全部都进入室外机。 步骤 S306, 关闭第一截止阀 43。 当室内机侧制冷剂几乎全部都进入室 外机后, 此时再关闭第一电磁阀 43 , 空调器再控制整机关机。 本发明实施例实现了在空调器关机时控制两个电磁阀的关闭顺序, 将制 冷剂全部封闭在室外侧。 在空调器两个电磁阀关闭之后, 空调机执行整机关 机, 关机过程成功结束。 步骤 S307, 控制空调转制冷运行。 空调的运行状态是制热运行状态时, 控制器控制空调器转为制冷运行状态。 本实施例中制热状态下, 空调器接收到关机信号, 控制器控制空调转为 制冷运行, 接着关闭第二截止阀 431 , 经过一定的预定时间关闭第一截止阀 43 , 最后整机关机(转制冷运行后的控制方式同制冷状态)。 图 4是 居本发明实施例二的空调器制冷剂的处理方法的流程图。 如图 4所示, 该方法包括如下步 4聚: 步骤 S401至步骤 S404同步骤 S301至步骤 S304, 其中, 步骤 S403中, 在制冷状态下执行步骤 S404, 否则, 转入步骤 S407。 步骤 S405 , 检测第一截止阀 43处的压力值是否为零。 当压力值为 0时 执行步 4聚 S406, 否则, 继续执行步 4聚 S405。 本实施例中, 在第一截止阀 43上增加一个压力检测装置。 制冷状态下, 空调器接收到关机信号, 控制第二电磁阀 431 关闭, 待第一截止阀 43上的 压力检测装置检测到压力为 0 , 则控制第一截止阀 43关闭。 步骤 S406, 同步 4聚 S306。 步骤 S407, 控制空调转制冷运行。 本实施例中制热状态下, 空调器接收到关机信号,控制空调转制冷运行, 接着关闭第二截止阀 431 ,待第一截止阀 43上的压力检测装置检测到压力为 0, 则控制第一截止阀 43关闭, 最后整机关机 (转制冷运行后的控制方式同 制冷状态)。 从以上的描述中,可以看出,本发明上述的实施例实现了如下技术效果: 通过釆用上述实施例的技术方案, 空调器关机时, 经过技术方案的处理, 对 室内侧冷媒进行回收, 可将至少 95%的制冷剂回收至室外侧, 空调器不工作 时室内侧残留的制冷剂微乎其微, 达到期望的目的。 需要说明的是, 在附图的流程图示出的步骤可以在诸如一组计算机可执 行指令的计算机系统中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但是 在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种空调器, 其特征在于, 包括:
室内机 ( 10);
室夕卜机 (40);
制冷剂循环回路, 连接所述室内机 ( 10 )和所述室外机 ( 40 ), 包括: 气体管路, 设置有第一截止阀 (43);
液体管路, 设置有第二截止阀 (431);
控制器, 与所述第一截止阀(43 )和所述第二截止阀(431 )电连接, 在接收到关机信号后检测所述空调器的运行状态, 在所述空调器处于制 冷工作状态时, 先控制所述第二截止阀 (431 )截止, 然后再控制所述第 一截止阀 (43 ) 截止。
2. 根据权利要求 1所述的空调器, 其特征在于,
所述气体管路包括:
第一气管连接管 (200), 连接于所述室外机 (40) 的第一气管 (220 ) 和所述室内机之间;
所述液体管路包括:
第一液管连接管( 300 )连接于所述室外机( 40 )的第一液管( 230 ) 和所述室内机之间,
其中, 所述第一截止阀 (43 )设置于所述第一气管 (220)上; 所述 第二截止阀 (431)设置于所述第一液管 (230) 上。
3. 根据权利要求 1所述的空调器, 其特征在于, 所述空调器还包括:
压力检测器, 设置在第一截止阀 (43) 所在的管路位置, 与所述控 制器电连接,在关闭所述第二截止阀( 431 )后,检测所述第一截止阀( 43 ) 处的压力值, 其中, 在所述压力值为零时, 所述控制器控制所述第一截止阀(43) 为截止状态。
4. 根据权利要求 1所述的空调器, 其特征在于, 所述空调器还包括: 定时器, 与所述控制器电连接, 在所述第二截止阀 (431 )关闭之后 开始计时,
其中, 在所述定时器计时的时间达到预定时间之后, 所述控制器控 制所述第一截止阀 (43 ) 为截止状态。
5. 根据权利要求 1所述的空调器, 其特征在于, 所述第一截止阀 (43 ) 和 /或所述第二截止阀 (431 ) 为电磁阀。
6. 根据权利要求 1至 5 中任一项所述的空调器, 其特征在于, 在所述空 调器处于制热运行状态时, 所述控制器控制所述空调器为制冷状态。
7. —种空调器制冷剂的处理方法, 其特征在于, 包括:
检测到空调器的关机信号;
判断所述空调器的运行状态;
在所述空调器的运行状态为制冷状态的情况下, 对所述空调器的制 冷剂循环回路的液体管路进行第一截止处理;
在满足预定条件的情况下, 对所述制冷剂循环回路的气体管路进行 第二截止处理。
8. 根据权利要求 7所述的方法, 其特征在于, 在所述空调器的运行状态 为制热状态的情况下, 所述方法还包括:
将所述空调器切换到制冷运行状态。
9. 居权利要求 7所述的方法, 其特征在于, 按照以下方式判断是否满 足所述预定条件:
检测所述空调器的制冷剂循环回路的液体管路进行第一截止处理之 后的时间是否达到预定时间; 或,
检测所述制冷剂循环回路的气体管路的压力值是否为零。
10. 根据权利要求 7至 9中任一项所述的方法, 其特征在于,
对所述空调器的制冷剂循环回路的液体管路进行第一截止处理包 括: 对所述空调器室外机侧的制冷剂循环回路的液体管路进行第一 截止处理;
对所述制冷剂循环回路的气体管路进行第二截止处理包括:
对所述空调器室外机侧的制冷剂循环回路的气体管路进行第二 截止处理。
PCT/CN2010/073955 2010-02-04 2010-06-13 空调器及其制冷剂的处理方法 WO2011094985A1 (zh)

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CN111412636B (zh) * 2020-04-07 2021-05-25 珠海格力电器股份有限公司 内外机之间无通信电路的空调及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6438557A (en) * 1987-07-30 1989-02-08 Toshiba Corp Air conditioner
JPH02187580A (ja) * 1989-01-12 1990-07-23 Nippondenso Co Ltd 冷媒充填回収装置
JPH05118720A (ja) * 1991-10-30 1993-05-14 Hitachi Ltd 冷凍装置の制御方法
JPH07190510A (ja) * 1993-12-28 1995-07-28 Matsushita Electric Ind Co Ltd セパレート式空気調和装置
CN1330758A (zh) * 1998-12-16 2002-01-09 大金工业株式会社 冷冻装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201680552U (zh) * 2010-02-04 2010-12-22 珠海格力电器股份有限公司 空调器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6438557A (en) * 1987-07-30 1989-02-08 Toshiba Corp Air conditioner
JPH02187580A (ja) * 1989-01-12 1990-07-23 Nippondenso Co Ltd 冷媒充填回収装置
JPH05118720A (ja) * 1991-10-30 1993-05-14 Hitachi Ltd 冷凍装置の制御方法
JPH07190510A (ja) * 1993-12-28 1995-07-28 Matsushita Electric Ind Co Ltd セパレート式空気調和装置
CN1330758A (zh) * 1998-12-16 2002-01-09 大金工业株式会社 冷冻装置

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