EP1041347B1 - Verfahren zur Installation einer Klimaanlage - Google Patents

Verfahren zur Installation einer Klimaanlage Download PDF

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Publication number
EP1041347B1
EP1041347B1 EP00106822A EP00106822A EP1041347B1 EP 1041347 B1 EP1041347 B1 EP 1041347B1 EP 00106822 A EP00106822 A EP 00106822A EP 00106822 A EP00106822 A EP 00106822A EP 1041347 B1 EP1041347 B1 EP 1041347B1
Authority
EP
European Patent Office
Prior art keywords
replacing gas
charge port
refrigerant charge
air conditioner
port
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.)
Expired - Lifetime
Application number
EP00106822A
Other languages
English (en)
French (fr)
Other versions
EP1041347A2 (de
EP1041347A3 (de
Inventor
Shigehiro Sato
Hitoshi Motegi
Yukio Rm 1108 Co-op Nomura Kyoto Minami Watanabe
Hironao Numoto
Hiroyuki Takeuchi
Eiji Nakatsuno
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1041347A2 publication Critical patent/EP1041347A2/de
Publication of EP1041347A3 publication Critical patent/EP1041347A3/de
Application granted granted Critical
Publication of EP1041347B1 publication Critical patent/EP1041347B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control 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
    • F24F11/84—Control 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control 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
    • 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

Definitions

  • the present invention relates to a method for installing an air conditioner used for connecting an indoor unit and an outdoor unit using connecting pipes.
  • a refrigeration cycle used for an air conditioner comprises a mechanical portion in which a compressor, a heat exchanger and a refrigerant flow rate controller having an expanding mechanism such as a capillary tube or an expanding valve, are connected by pipes such as copper pipes, and fluid charged in the refrigeration cycle such as refrigerant and lubricant oil composition.
  • a separate-type air conditioner comprises an outdoor unit having a compressor and a heat exchanger, and an indoor unit having another heat exchanger installed at a place where refrigeration air conditioning is performed.
  • the outdoor unit and the indoor unit are connected through connection pipes such as copper pipes.
  • connection pipes such as copper pipes.
  • a conventional method employs a vacuum pump connected to a refrigerant charge port provided at the valve of the outdoor unit. And, after the air is removed by the vacuum pump, the valve is opened to connect the indoor unit and the outdoor unit, thereby forming the refrigeration cycle.
  • Japanese Patent Application Laid-open No.H3-70953 discloses a method to establish a refrigeration cycle without using a vacuum pump in which, after replacing the gas in the refrigeration cycle by oxygen, the refrigerant is charged and the oxygen is solidified by oxygen fixing agent disposed in the refrigeration cycle.
  • Japanese Patent Application Laid-open No.H7-159004 discloses a method for charging, into a portion of a refrigeration cycle, material capable of absorbing two or more of water, oxygen, nitrogen, carbon dioxide and the like in the air in such a separate type air conditioner in which among a freezing compressor, a condenser, an expanding mechanism such as a capillary tube and an expanding valve, and an evaporator, one of the condenser and the evaporator, or one of the condenser and the evaporator is separated from the expanding mechanism and connected by the pipes.
  • Japanese Patent Application Laid-open No.H7-269994 discloses a refrigeration cycle in which oxygen absorbing agent is disposed in a refrigerant circulating system.
  • Japanese Patent Application Laid-open No.H9-292168 discloses a method in which air absorbing agent is disposed for removing air in a pipe and an indoor unit, and a method in which after carbon dioxide is charged in the pipe and the indoor unit, the carbon dioxide in the pipe and the indoor unit is absorbed by carbon dioxide absorbing agent to establish vacuum.
  • United States Patent US 5,718,119 discloses a refrigeration system including an outdoor unit having a refrigeration compressor and a heat exchanger, and an indoor unit having a heat exchanger to be placed where air conditioning is desired.
  • the outdoor unit is first connected with the indoor unit via pipe lines, and an air absorbing device containing zeolite as an adsorbent is subsequently placed on the outdoor unit, the indoor unit, or the pipe lines to remove air.
  • the air absorbing device is then separated from the refrigeration system, and refrigerant is caused to circulate through the refrigeration system.
  • Japanese Patent Application JP-A-07 103 620 discloses a device and method for feeding car cooler gas with an arrangement of a cooler gas loading device connected to a low pressure side of a compressor through a charge hose causing an air purging effect such that fluorocarbon gas in a cooler flows into a channel.
  • Said loading device is attached to a cooler gas feed pipe by screwing a cylinder wherein a ball is pressed against a valve seat, into a cap of a gas filled can.
  • the method for removing the air using the vacuum pump is common.
  • an electric power supply is available; further, it is difficult to use the pump on a roof and the like, and therefore, this method cannot be called a simple method.
  • a method using a connecting apparatus for installing an air conditioner comprising a first connecting port connected to a refrigerant charge port of a pipe connecting valve body provided in an outdoor unit of the air conditioner, and a second connecting port connected to a replacing gas charging container for installing the air conditioner, replacing gas in the replacing gas charging container being allowed to flow from the refrigerant charge port, wherein the first connecting port includes a first connecting portion capable of being connected to the refrigerant charge port, the second connecting port includes a second connecting portion capable of being connected to the replacing gas charging container, the refrigerant charge port is opened by connecting the first connecting port and the refrigerant charge port to each other by the first connecting portion, and the refrigerant charge port is opened by connecting the second connecting portion and the replacing gas charging container to each other by the second connecting portion.
  • the first connecting port includes the first connecting portion capable of being connected to the refrigerant charge port
  • the second connecting port includes the second connecting portion capable of being connected to the replacing gas charging container.
  • a replacing gas in the replacing gas charging container can be allowed to flow in from the refrigerant charge port simply by connecting the connecting apparatus to the refrigerant charge port and by connecting the replacing gas charging container to this connecting apparatus. Therefore, according to the first aspect of this invention, the operation for flowing the replacing gas in the replacing gas charging container into the air conditioner simply by connecting this connecting apparatus. In this manner, according to the present aspect of invention, it is unnecessary to operate the vacuum pump unlike the prior art, and even when the replacing gas is utilized, it is unnecessary to use a large-scale cylinder having a valve, it is possible to use a throwaway type replacing gas charging container having no valve and thus, an installing operation of the air conditioner can be facilitated.
  • a method using a connecting apparatus for installing an air conditioner comprising a first connecting port connected to a refrigerant charge port of a pipe connecting valve body provided in an outdoor unit of the air conditioner, and a second connecting port connected to a replacing gas collecting container for installing the air conditioner, replacing gas being absorbed into the replacing gas collecting container through the refrigerant charge port, wherein the first connecting port includes a first connecting portion capable of being connected to the refrigerant charge port, the second connecting port includes a second connecting portion capable of being connected to the replacing gas collecting container, the refrigerant charge port is opened by connecting the first connecting port and the refrigerant charge port to each other by the first connecting portion, and the refrigerant charge port is opened by connecting the second connecting portion and the replacing gas collecting container to each other by the second connecting portion.
  • the first connecting port includes the first connecting portion capable of being connected to the refrigerant charge port
  • the second connecting port includes the second connecting portion capable of being connected to the replacing gas collecting container.
  • a replacing gas in the replacing gas collecting container can be collected from the refrigerant charge port into the replacing gas collecting container simply by connecting the replacing gas collecting container to the connecting apparatus and by connecting the connecting apparatus to the refrigerant charge port. Therefore, according to the present embodiment, the operation for collecting the replacing gas from the air conditioner to the replacing gas collecting container simply by connecting this connecting apparatus. In this manner, according to the present invention, it is unnecessary to operate the vacuum pump unlike the prior art, and even when the replacing gas is utilized, it is unnecessary to use a large-scale cylinder having a valve, it is possible to use a throwaway type replacing gas collecting container having no valve and thus, an installing operation of the air conditioner can be facilitated.
  • a method using a connecting apparatus for installing an air conditioner comprising a first connecting port connected to a refrigerant charge port of a pipe connecting valve body provided in an outdoor unit of the air conditioner, and a second connecting port connectable to a replacing gas charging container and a replacing gas collecting container for installing the air conditioner, in a first step replacing gas in the replacing gas charging container being allowed to flow through the refrigerant charge port and then, in a second step the replacing gas being absorbed into the replacing gas collecting container through the refrigerant charge port, wherein the first connecting port includes a first connecting portion capable of being connected to the refrigerant charge port, the second connecting port includes a second connecting portion capable of being connected to the replacing gas charging container and the replacing gas collecting container, the refrigerant charge port is opened by connecting the first connecting port and the refrigerant charge port to each other by the first connecting portion, and the refrigerant charge port is opened by connecting the second connecting portion and the replacing gas charging container or the replacing gas collecting container to
  • the first connecting port includes the first connecting portion capable of being connected to the refrigerant charge port
  • the second connecting port includes the second connecting portion capable of being connected to the replacing gas charging container and the replacing gas collecting container.
  • the refrigerant charge port can be opened simply by connecting the connecting apparatus to the refrigerant charge port, and the replacing gas charging container or the replacing gas collecting container can be opened simply by connecting the replacing gas charging container or the replacing gas collecting container to this connecting apparatus. Therefore, since both the replacing gas charging container and the replacing gas collecting container can be used with the single connection apparatus, the operation for once replacing the air in the air conditioner by the replacing gas and then collecting the replacing gas can be carried out only by using this connecting apparatus.
  • the first connection portion includes a seal member and a valve rod, and when the first connecting port and the refrigerant charge port are connected to each other by the first connection portion, after the first connecting portion and the refrigerant charge port are hermetically closed by the seal member, the valve rod pushes and opens a valve core in the refrigerant charge port.
  • the first connecting port and the refrigerant charge port can be connected to each without immixing air in the atmosphere.
  • a screw is formed on an inner peripheral surface of the connecting portion, and the connecting portion is rotatably provided around an outer periphery of the connecting port. According to the present invention, since it is possible to screw without rotating the connecting apparatus itself, the operability at the time of installation is excellent.
  • the connecting portion in the method using a connecting apparatus for installing an air conditioner of the fifth aspect of the invention, includes a seal member which is located deeper than the screw. After an end of the refrigerant charge port abuts against the seal member, a valve core in the refrigerant charge port is pushed and opened. According to the present invention, the connection operation can be carried out without immixing air in the atmosphere.
  • An installation method of an air conditioner according to an eighth aspect is for charging or collecting the replacing gas or the refrigerant using the connecting apparatus for installing the air conditioner of any of the first to third aspects of the invention. According to the present aspect of the invention, it is unnecessary to operate the vacuum pump unlike the prior art, and even when the replacing gas is utilized, it is unnecessary to use a large-scale container having a valve, it is possible to use a throwaway type container and thus, an installing operation of the air conditioner can be facilitated.
  • a replacing gas charging container for installing an air conditioner wherein, one or more kinds of replacing gas which is gas state at room temperature and atmospheric pressure and which is inert with respect to refrigerant used in a refrigeration cycle of the air conditioner is charged in the replacing gas charging container, a connecting port is connected to a refrigerant charge port of a pipe connecting valve body provided in an outdoor unit of the air conditioner, and the replacing gas is allowed to flow through the refrigerant charge port, wherein the connecting port includes a connecting portion capable of being connected to the refrigerant charge port, and by connecting the connecting port and the refrigerant charge port by the connecting portion, the connecting port is opened and the refrigerant charge port is opened.
  • a connecting port includes a connecting portion capable of being connected to a refrigerant charge port, and by connecting the connecting port and the refrigerant charge port by the connecting portion, the connecting port is opened and the refrigerant charge port is also opened.
  • the represents charge port and the replacing gas charging container can be opened simply by connecting the replacing gas charging container to the refrigerant charge port. Therefore, it is possible to introduce the replacing gas in the replacing gas charging container through the refrigerant charge port simply by connecting the replacing gas charging container to the refrigerant charge port.
  • a replacing gas collecting container for installing an air conditioner, wherein, a material which absorbs one or more kinds of replacing gas which is gas state at room temperature and atmospheric pressure and which is inert with respect to refrigerant used in a refrigeration cycle of the air conditioner is contained in the replacing gas collecting container, a connecting port is connected to a refrigerant charge port of a pipe connecting valve body provided in an outdoor unit of the air conditioner, and the replacing gas charged in the connecting of the air conditioner is absorbed through the refrigerant charge port, wherein the connecting port includes a connecting portion capable of being connected to the refrigerant charge port, and by connecting the connecting port and the refrigerant charge port by the connecting portion, the connecting port is opened and the refrigerant charge port is opened.
  • the connecting port includes the connecting portion capable of being connected to the refrigerant charge port, and by connecting the connecting port and the refrigerant charge port by the connecting portion, the connecting port is opened and the refrigerant charge port is also opened.
  • the refrigerant charge port and the replacing gas collecting container can be opened simply by connecting the replacing gas collecting container to the refrigerant charge port. Therefore, it is possible to recover the replacing gas from the refrigerant charge port into the replacing gas collecting container simply by connecting the replacing gas collecting container to the refrigerant charge port.
  • a replacing gas having global warming coefficient smaller than that of a refrigerant used in a refrigeration cycle of an air conditioner is used in the replacing gas charging container of the tenth aspect of invention.
  • the present aspect of the invention is advantageous to global environment as compared with a case in which a refrigerant which has been charged is purged and the refrigerant is discharged out into the atmosphere.
  • the air conditioner is installed using the replacing gas charging container of the ninth aspect of the invention. According to the present aspect, it is unnecessary to operate the vacuum pump unlike the prior art, and even when the replacing gas is utilized, it is unnecessary to use a large-scale container having a valve, it is possible to use a throwaway type container and thus, an installing operation of the air conditioner can be facilitated.
  • the air conditioner is installed using the replacing gas collecting container of the ninth aspect. According to the present aspect of invention, it is unnecessary to operate the vacuum pump unlike the prior art, and even when the replacing gas is utilized, it is unnecessary to use a large-scale container having a valve, it is possible to use a throwaway type container and thus, an installing operation of the air conditioner can be facilitated.
  • a replacing gas charging container or the replacing gas collecting container includes a connection port provided with a connecting portion capable of being connected to a refrigerant charge port of a pipe connection valve body disposed in an outdoor unit, and by connecting the connecting port and the refrigerant charge port by the connecting portion, the connecting port is opened and the refrigerant charge port is opened.
  • the present aspect of the invention it is possible to open the refrigerant charge port and the replacing gas charging container or the replacing gas collecting container simply by connecting the replacing gas charging container or the replacing gas collecting container to the refrigerant charge port. Therefore, it is possible to flow and recover the replacing gas through the refrigerant charge port.
  • the air conditioner is installed using the installation apparatus for an air conditioner of the fourteenth aspect of the invention. According to this aspect of invention, it is unnecessary to operate the vacuum pump unlike the prior art, and even when the replacing gas is utilized, it is unnecessary to use a large-scale cylinder having a valve, it is possible to use a throwaway type replacing gas container having no valve and thus, an installing operation of the air conditioner can be facilitated.
  • Figs.1 and 2 are block diagrams of refrigeration cycles used in the embodiment.
  • Fig.1 shows the refrigeration cycle to which a replacing gas charging container is connected; and
  • Fig.2 shows the refrigeration cycle to which a replacing gas collecting container is connected.
  • the refrigeration cycle comprises a compressor 1, a four-way valve 2, an outdoor unit heat exchanger 3, an expansion device 4, a dryer 5 and an indoor unit heat exchanger 6.
  • the compressor 1, the four-way valve 2, the outdoor unit heat exchanger 3, the expansion device 4 and the dryer 5 are disposed in an outdoor unit A, and the indoor unit heat exchanger 6 is disposed in an indoor unit B.
  • the outdoor unit A is provided with a liquid-side two-way valve 7 and a gas-side three-way valve 8.
  • the outdoor unit A and the indoor unit B are connected to each other through connection pipes 9 and 10 using the liquid-side two-way valve 7 and the gas-side three-way valve 8.
  • the liquid-side two-way valve 7 is provided with a screw portion 7a, and a pipe on the side of the outdoor unit A and a connecting pipe 9 are brought into communication with each other by opening the screw portion 7a.
  • the gas-side three-way valve 8 is provided with a screw portion 8a and a refrigerant charge port 8b, and a pipe on the side of the outdoor unit A and a connecting pipe 10 are brought into communication with each other by opening this screw portion 8a.
  • a replacing gas charging container 20 can be connected to the refrigerant charge port 8b using a connecting apparatus 30, and as shown in Fig.2, a replacing gas collecting container 40 can be connected to the refrigerant charge port 8b using a connecting apparatus 50.
  • These replacing gas charging container 20 or the replacing gas collecting container 40 can be brought into communication with the connecting pipe 10 by connecting the container to the connecting apparatus 30 or 50, respectively.
  • a replacing gas comprising one kind or a plurality of kinds of gas mixture which is inert toward the refrigerant in the refrigeration cycle and which is gas state at room temperature and atmospheric pressure is charged into the replacing gas charge container 20. More specifically, it is preferable that the replacing gas has a global warming coefficient smaller than that of a refrigerant. For example, when R410A is used as the refrigerant, the global warming coefficient (GWP) is 1730, it is preferable that the replacing gas has a global warming coefficient smaller than this value and the replacing gas is inert toward the refrigeration cycle.
  • a material which absorbs the replacing gas is charged in the replacing gas collecting container 40. More specifically, when carbon dioxide is charged as the replacing gas, zeolite, epoxy compound, calcium hydroxide and the like can be used as the material which absorbs the replacing gas. Among them, zeolite is preferable because the absorbing speed is high. Zeolite having hole diameter of 1.0 nm is most suitable because the absorbing speed of the carbon dioxide is high. Although any shape of zeolite can be used , but spherical shape is preferable because the zeolite of such shape is less prone to be crushed.
  • Fig.3 is a schematic view of the connecting apparatus of the replacing gas charging container according to one embodiment of the invention.
  • the connecting apparatus 30 is provided at its one end with a connecting portion 31 which is threadedly engaged with a male screw 81 of the refrigerant charge port 8b, and at the other end with a connecting portion 32 which is threadedly engaged with a male screw 21 formed on an opening of the replacing gas charging container 20.
  • a female screw 33 is formed on an inner peripheral surface of the connecting portion 31, and a female screw 34 is formed on an inner peripheral surface of the connecting portion 32.
  • a valve rod 35 and a seal member 36 comprising an O-ring or the like are provided in the connecting portion 31. The valve rod 35 abuts against a valve core 82 in the refrigerant charge port 8b, and has enough length to push the valve core 82.
  • a blade 37 is formed in the connecting portion 32 such that a hole can be formed in the opening of the replacing gas charging container 20. It is preferable that outer diameters or inner diameters of the connecting portion 31 and the connecting portion 32 are different so that the refrigerant charge port 8b and the replacing gas charging container 20 will not be erroneously connected. Here, it is unnecessary that the screw for the refrigerant charge port 8b and the screw for the replacing gas charging container of the connecting apparatus 30 exist on the same axis. If these screws exist on two axes which intersect substantially at right angles as shown in Fig. 3, the flexibility of positioning at work site for connecting the replacing gas charging container 20 is greatly enhanced so that it makes easier to remove the air in the air conditioner by the replacing gas.
  • the connecting portion 31 connecting with the refrigerant charge port 8b is a screw type joint because the hermeticity is ensured.
  • a rubber seal member 36 such as the O-ring.
  • the female screw 33 is threadedly engaged with the male screw 81 of the refrigerant charge port 8b.
  • the seal member 36 abuts against the male screw 81 before the valve rod 35 pushes the valve core 82 in the refrigerant charge port 8b, thereby hermetically closing the space between the screws 81 and 33. This is because that the air is less prone to remain in the refrigeration cycle.
  • the seal member 36 is separated from the male screw 81 of the refrigerant charge port 8b after the valve rod 35 and the valve core 82 are separated from each other.
  • the connecting portions 31 and 32 are rotatably mounted on the outer peripheral surfaces of the connecting portions 38 and 39 because it is unnecessary to rotate the connecting portions 31 and 32 together with the connecting apparatus 30.
  • the refrigerant charge port 8b is opened by pushing the valve core 82. And, the valve core 82 is pressed to a seat 84 by a resilient body 83 by being connected to the resilient body 83 via the connecting portion 85.
  • Fig.4 is a schematic view of the connecting apparatus of the replacing gas collecting container according to one embodiment of the invention.
  • the connecting apparatus 50 is provided at its one end with a connecting portion 51 which is threadedly engaged with a male screw 81 of the refrigerant charge port 8b, and at the other end with a connecting portion 52 which is threadedly engaged with a male screw 41 formed on an opening of the replacing gas collecting container 40.
  • a female screw 53 is formed on an inner peripheral surface of the connecting portion 51, and a female screw 54 is formed on an inner peripheral surface of the connecting portion 52.
  • a valve rod 55 and a seal member 56 are provided in the connecting portion 51. The valve rod 55 abuts against a valve core 82 in the refrigerant charge port 8b, and has enough length to push the valve core 82.
  • a blade 57 is formed in the connecting portion 52 such that a hole can be formed in the opening of the replacing gas collecting container 40. It is preferable that outer diameters or inner diameters of the connecting portion 51 and the connecting portion 52 are different so that the refrigerant charge port 8b and the replacing gas collecting container 40 are not erroneously connected.
  • the connecting portion 51 connecting to the refrigerant charge port 8b is a screw type joint because the hermeticity is ensured.
  • the female screw 53 is threadedly engaged with the male screw 81 of the refrigerant charge port 8b.
  • the seal member 56 abuts against the male screw 81 before the valve rod 55 pushes the valve core 82 in the refrigerant charge port 8b, thereby hermetically closing the space between the screws 81 and 33. This is because that the air is less prone to remain in the refrigeration cycle.
  • the seal member 56 is separated from the male screw 81 of the refrigerant charge port 8b after the valve rod 55 and the valve core 82 are separated from each other.
  • the connecting portions 51 and 52 are rotatably mounted on the outer peripheral surfaces of the connecting portions 58 and 59 because, in this manner, it is unnecessary to rotate the connecting portions 51 and 52 together with the connecting apparatus 50.
  • the connecting apparatus shown in Fig.3 was explained as the connecting apparatus 30 for connecting the replacing gas charging container 20, and the connecting apparatus shown in Fig.4 was explained as the connecting apparatus 50 for connecting the replacing gas collecting container 40.
  • the connecting apparatus shown in Fig.3 can be used as the connecting apparatus 50 for connecting the replacing gas collecting container 40
  • the connecting apparatus shown in Fig.4 can be used as the connecting apparatus 30 for connecting the replacing gas charging container 20. Therefore, although the connecting apparatus 30 and the connecting 50 were explained as different members, the male screw 21 of the replacing gas charging container 20 and the male screw 41 of the replacing gas collecting container 40 are formed into the same size, the connecting apparatus 30 and the connecting 50 can be a common apparatus. Further, the refrigerant can be charged and collected using the connecting apparatus 30 and 50.
  • the screw on the side of the refrigerant charge port 8b and the screw on the side of the replacing gas collecting container 40 are formed on two axes which intersect substantially at right angles.
  • the connecting apparatus 50 may have the same structure.
  • Fig.5 is a schematic view of the replacing gas charging container and a gas-side three-way valve according to the embodiment.
  • a replacing gas comprising one kind or a plurality of kinds of gas mixture which is inert toward the refrigerant in the refrigeration cycle and which is gas state at room temperature and atmospheric pressure is charged into a replacing gas charge container 20A.
  • the replacing gas charge container 20A is provided with a connecting port having a connecting portion 21A.
  • the replacing gas charge container 20A can be connected to the refrigerant charge port 8b by the connecting portion 21A.
  • the connecting portion 21 may be constructed such that a valve core which is normally closed by a resilient body is opened by an external pushing pressure like the inside structure of the refrigerant charge port 8b. If the valve core is disposed in the connecting portion 21A also, the valve core on the side of the refrigerant charge port 8b and the valve core on the side of the connecting portion 21A push against each other, and the respective connecting ports can be opened.
  • the replacing gas collecting container may have the same structure.
  • refrigerant gas is charged into the pipes on the side of the outdoor A such as the compressor 1 and the outdoor unit heat exchanger 3. At that time, refrigerant gas which is necessary for driving is charged into the outdoor unit A.
  • the pipes on the side of the indoor unit B such as the indoor unit heat exchanger 6, as well as the connecting pipes 9 and 10 are not sealed and are opened to the atmosphere.
  • the outdoor unit A and the indoor unit B are connected through the connecting pipes 9 and 10.
  • the liquid-side two-way valve 7 and the connecting pipe 9 are not hermetically connected to each other but are loosely connected such that gas can slightly leak.
  • the screw 7a of the liquid-side two-way valve 7 and the screw 8a of the gas-side three-way valve 8 are closed.
  • the connecting apparatus 30 is mounted to the refrigerant charge port 8b of the gas-side three-way valve 8.
  • the valve core 82 in the refrigerant charge port 8b is pushed by the valve rod 35 in the connecting apparatus 30 so that the refrigerant charge port 8b is opened.
  • the opening of the replacing gas charging container 20 is opened by the blade 37 of the connecting apparatus 30.
  • carbon dioxide in the replacing gas charging container 20 is introduced into the connecting pipe 10 and the indoor unit B from the refrigerant charge port 8b through the connecting apparatus 30, and introduced into the connecting pipe 9.
  • the air in the connecting pipes 9 and 10 as well as in the indoor unit B is discharged into the atmosphere together with the introduced carbon dioxide from a loosened portion of flare portion of the liquid-side two-way valve 7.
  • the connecting portion between the liquid-side two-way valve 7 and the connecting pipe 9 is hermetically closed.
  • the predetermined amount of discharged gas may be measured using a flowmeter, but if the amount of gas in the replacing gas charging container 20 is set slightly greater than the volume in the pipe in the indoor unit B and the connecting pipes 9 and 10 so that one air conditioner can be installed using one replacing gas charging container 20, the connecting portion between the liquid-side two-way valve 7 and the connecting pipe 9 may be hermetically closed when a sound of gas leaking out becomes small without using the flowmeter.
  • the connecting apparatus 30 is detached from the refrigerant charge port 8b in a state where the replacing gas charging container 20 is left mounted to the connecting apparatus 30.
  • the inert gas absorbing step is achieved by connecting the replacing gas collecting container 40 to the refrigerant charge port 8b.
  • One method therefor is to connect the connecting apparatus 50 to the replacing gas collecting container 40 by threadedly engaging the male screw 41 of the replacing gas collecting container 40 with the female screw 54 of the connecting apparatus 50. In this state, the replacing gas collecting container 40 is opened by the blade 57 of the connecting apparatus 50.
  • the other end of the connecting apparatus 50 is connected to the refrigerant charge port 8b.
  • the valve rod 55 of the connecting apparatus 50 pushes the valve core 82 in the refrigerant charge port 8b.
  • the replacing gas collecting container 40 and the refrigerant charge port 8b are brought into communication with each other, and the carbon dioxide in the connecting pipes 9 and 10 as well as the pipes in the indoor unit B is introduced from the refrigerant charge port 8b into the replacing gas collecting container 40.
  • Another method is to first connect the other end of the connecting apparatus 50 to the refrigerant charge port 8b and then, to connect the replacing gas collecting container 40 to the connecting apparatus 50.
  • the connecting apparatus 50 By first connecting the connecting apparatus 50 to the refrigerant charge port 8b in this manner, the air in the connecting apparatus 50 can be pushed out by the replacing gas.
  • the introduced carbon dioxide is physically absorbed and collected by zeolite in the replacing gas collecting container 40.
  • the connecting apparatus 50 is detached from the refrigerant charge port 8b, and the screw of the liquid-side two-way valve 7 is completely opened.
  • the connecting apparatus 50 is detached from the refrigerant charge port 8b in a state where the replacing gas collecting container 40 is still connected to the connecting apparatus 50.
  • the air in the refrigeration cycle can be removed by carrying out the installation in accordance with the above-described step. Further, waste space between the outlet of replacing gas charging container 20 or the outlet of the replacing gas collecting container 40 and the refrigerant charge port 8b can be reduced by using the connecting apparatus 30 and 50 of the above embodiments, thereby, harmful air will not be mixed almost at all; the air in the refrigeration cycle can be removed without using a vacuum pump; and it is possible to prevent the refrigeration cycle from being deteriorated.
  • the present invention can also be applied to an outdoor unit having a three-way valve and another three-way valve. Further, the present invention should not be limited to the two-way valve and three-way valve, and the invention can also be applied to an air conditioner having a valve including a refrigerant charge port.
  • the refrigerant charge port can be opened simply by connecting the connecting apparatus to the refrigerant charge port
  • the replacing gas charging container can be opened simply by connecting the replacing gas charging container to the connecting apparatus. Therefore, the replacing gas in the replacing gas charging container can be allowed to flow from the refrigerant charge port simply by connecting the connecting apparatus to the refrigerant charge port and by connecting the replacing gas charging container to the connecting apparatus. Therefore, the operation for introducing the replacing gas in the replacing gas charging container into the air conditioner can be carried out simply by connecting the connecting apparatus.
  • the refrigerant charge port can be opened simply by connecting the connecting apparatus to the refrigerant charge port
  • the replacing gas collecting container can be opened simply by connecting the replacing gas collecting container to the connecting apparatus. Therefore, the replacing gas can be collected through the refrigerant charge port into the replacing gas collecting container simply by connecting the replacing gas collecting container to the connecting apparatus and by connecting the connecting apparatus to the replacing gas charge port. Therefore, the operation for collecting the replacing gas from the air conditioner into the replacing gas collecting container can be carried out simply by connecting the connecting apparatus.
  • the refrigerant charge port can be opened simply by connecting the connecting apparatus to the refrigerant charge port and the replacing gas charging container or the replacing gas collecting container can be opened simply by connecting the replacing gas charging container or the replacing gas collecting container to the connecting apparatus. Therefore, since both the replacing gas charging container and replacing gas collecting container can be used, the operation for replacing the air in the air conditioner by the replacing gas as well operation for collecting the replacing gas can be carried out by using this connecting apparatus.
  • the connecting port of the connecting apparatus and the refrigerant charge port can be connected without immixing the air in the atmosphere.
  • the connecting apparatus can be screwed without rotating the connecting apparatus itself, the operability of the installation is excellent.
  • the charging device can be formed into throwaway type having no on-off valve, and the charging container can be reduced in size.
  • the collecting device can be formed into throwaway type having no on-off valve, and the collecting container can be reduced in size.
  • the present invention has an advantage in global environment as compared with a case in which a refrigerant which has been charged is purged and the refrigerant is discharged out into the atmosphere.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Claims (7)

  1. Verfahren für das Installieren einer Klimaanlage, umfassend
    den Schritt, der es einem Austauschgas ermöglicht, aus einem Austauschgas-Füllbehälter (20) aus einer Kühlmittel-Füllöffnung (8b) eines leitungsverbindenden Ventilkörpers zu strömen, der in einer Außeneinheit (A) der Klimaanlage vorgesehen ist, und danach den Schritt des Auffangens des Austauschgases aus der Kühlmittel-Füllöffnung (8b) in einem Austauschgas-Auffangbehälter (40)
    gekennzeichnet durch
    das Verwenden einer Anschlussvorrichtung (30, 50) umfassend:
    eine erste Verbindungsöffnung, die an die Kühlmittel-Füllöffnung (8b) anschließbar ist und eine zweite Verbindungsöffnung, die an einen Austauschgas-Füllbehälter (20) oder an einen Austauschgas-Auffangbehälter (40) anschließbar ist für das Installieren der Klimaanlage,
    wobei die erste Verbindungsöffnung ein erstes Verbindungsteil (31) umfasst, das mit der Kühlmittel-Füllöffnung (8b) verbunden werden kann, wobei die zweite Verbindungsöffnung ein zweites Verbindungsteil (32) umfasst, das mit dem Austauschgas-Füllbehälter (20) oder dem Austauschgas-Auffangbehälter (40) verbunden werden kann,
    wobei die Kühlmittel-Füllöffnung (8b) dadurch geöffnet wird, dass die erste Verbindungsöffnung und die Kühlmittel-Füllöffnung durch das erste Verbindungsteil (31) miteinander verbunden werden und der Austauschgas-Füllbehälter (20) oder der Austauschgas-Auffangbehälter (40) dadurch geöffnet wird, dass die zweite Verbindungsöffnung und der Austauschgas-Füllbehälter (20)oder der Austauschgas-Auffangbehälter (40) durch das zweite Verbindungsteil (32) miteinander verbunden werden.
  2. Verfahren für das Installieren einer Klimaanlage nach Anspruch 1,
    wobei das erstes Verbindungsteil (31) ein Abdichtteil (36) und einen Ventilschaft (35) umfasst, und, wenn die erste Verbindungsöffnung und die Kühlmittel-Füllöffnung (8b) durch das erste Verbindungsteil (31) miteinander verbunden sind, nachdem die erste Verbindungsöffnung und die Kühlmittel-Füllöffnung (8b) mit dem Abdichtteil (36) hermetisch verschlossen wurden, der Ventilschaft (35) vorstößt, um einen Ventileinsatz (82) zu Öffnen in der Kühlmittel-Füllöffnung (8b).
  3. Verfahren für das Installieren einer Klimaanlage nach Anspruch 1 oder 2, wobei ein Schraubgewinde (33) auf einer inneren Umfangsfläche des ersten Verbindungsteils (31) gebildet wird und das erste Verbindungsteil (31) drehbar um einen Außenumfang der Verbindungsöffnung vorgesehen wird.
  4. Verfahren für das Installieren einer Klimaanlage nach Anspruch 3, wobei das erste Verbindungsteil (31) ein Abdichtteil (36) umfasst, welches tiefer als das Schraubgewinde (33) angeordnet ist, und, nachdem ein Ende der Kühlmittel-Füllöffnung (8b) an das Abdichtteil (36) angrenzt der Ventileinsatz (82) in der Kühlmittel-Füllöffnung (8b) zum Öffnen gestoßen wird.
  5. Verfahren für das Installieren einer Klimaanlage nach Anspruch 1, wobei eine oder mehrere Arten von Austauschgas, das bei Raumtemperatur und atmosphärischem Druck in gasförmigem Zustand ist und welches in Bezug auf ein Kühlmittel, das in einem Kühlungszyklus der Klimaanlage verwendet wird, inert ist, in den Austauschgas-Füllbehälter (20) gefüllt wird.
  6. Verfahren für das Installieren einer Klimaanlage nach Anspruch 1, wobei ein Material, welches eines oder mehrere Arten von Austauschgasen absorbiert, welche bei Raumtemperatur in gasförmigem Zustand sind, und welches in Bezug auf ein Kühlmittel, das in einem Kühlungszyklus der Klimaanlage verwendet wird, inert ist, im Austauschgas-Auffangbehälter (40) aufgenommen wird.
  7. Verfahren für das Installieren einer Klimaanlage nach Anspruch 5, wobei das Austauschgas einen kleineren Gesamterwärmungskoeffizienten aufweist, als den des Kühlmittels, das in dem Kühlungskreislauf der Klimaanlage verwendet wird.
EP00106822A 1999-04-01 2000-03-30 Verfahren zur Installation einer Klimaanlage Expired - Lifetime EP1041347B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9457699 1999-04-01
JP09457699A JP3154990B2 (ja) 1999-04-01 1999-04-01 空気調和機施工用の接続装置、充填容器、回収容器、空気調和機の施工方法、空気調和機施工用の置換用気体充填容器、空気調和機施工用の置換用気体回収容器、及び空気調和機の施工装置

Publications (3)

Publication Number Publication Date
EP1041347A2 EP1041347A2 (de) 2000-10-04
EP1041347A3 EP1041347A3 (de) 2001-07-04
EP1041347B1 true EP1041347B1 (de) 2005-08-31

Family

ID=14114125

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Application Number Title Priority Date Filing Date
EP00106822A Expired - Lifetime EP1041347B1 (de) 1999-04-01 2000-03-30 Verfahren zur Installation einer Klimaanlage

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EP (1) EP1041347B1 (de)
JP (1) JP3154990B2 (de)
DE (1) DE60022249T2 (de)
ES (1) ES2246765T3 (de)
MY (1) MY125353A (de)

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ES2255908T3 (es) * 1999-04-01 2006-07-16 Matsushita Electric Industrial Co., Ltd. Aparato de reemplazo de gas para un acondicionador de aire.
JP3149871B2 (ja) * 1999-07-05 2001-03-26 松下電器産業株式会社 置換用気体の回収トラップ容器及び空気調和機の施工方法
US6561237B1 (en) 2000-11-28 2003-05-13 Brasscorp Ltd. Apparatus and method for urging fluid into a pressurized system
FR2847664B1 (fr) * 2002-11-25 2005-12-02 Dispositif compensant les fuites d'un circuit de climatisation automobile ou de refrigeration de vehicule frigorifique utilisant du dioxyde de carbone comme fluide frogorigene
CN100451466C (zh) * 2007-01-30 2009-01-14 孙海潮 一种专用于分体式空调室内机与室外机制冷剂连接管路的制冷剂连接管
JP4906792B2 (ja) * 2008-06-19 2012-03-28 三菱電機株式会社 蒸気圧縮式ヒートポンプ装置
US20110219790A1 (en) * 2010-03-14 2011-09-15 Trane International Inc. System and Method For Charging HVAC System
CN103629465B (zh) * 2013-12-10 2016-02-24 宁波市鄞州恒星空调配件厂 空调内外机快速连接管
JP6293647B2 (ja) * 2014-11-21 2018-03-14 ヤンマー株式会社 ヒートポンプ
CN105570988B (zh) * 2015-12-31 2018-12-11 珠海格力电器股份有限公司 空调器及其控制方法
US11125479B1 (en) 2016-09-28 2021-09-21 Joi Holding Llc Apparatus and process for amateur HVAC installation
US20200088417A1 (en) * 2016-09-28 2020-03-19 Jason Ingram Apparatus and process for amateur ductless hvac installation
US11982451B1 (en) 2016-09-28 2024-05-14 Joi Holding Llc Apparatus and process for amateur HVAC installation
CN110662931B (zh) * 2017-05-23 2022-03-18 开利公司 集成维护制冷剂泵
USD1010776S1 (en) 2017-09-28 2024-01-09 Joi Holding Llc Female quick-connect connector
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Also Published As

Publication number Publication date
DE60022249D1 (de) 2005-10-06
MY125353A (en) 2006-07-31
DE60022249T2 (de) 2006-03-09
JP3154990B2 (ja) 2001-04-09
JP2000292039A (ja) 2000-10-20
EP1041347A2 (de) 2000-10-04
EP1041347A3 (de) 2001-07-04
ES2246765T3 (es) 2006-03-01

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