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KR101187008B1 - Multi-refrigerating apparatus with variable refrigerants - Google Patents

Multi-refrigerating apparatus with variable refrigerants Download PDF

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Publication number
KR101187008B1
KR101187008B1 KR1020100037744A KR20100037744A KR101187008B1 KR 101187008 B1 KR101187008 B1 KR 101187008B1 KR 1020100037744 A KR1020100037744 A KR 1020100037744A KR 20100037744 A KR20100037744 A KR 20100037744A KR 101187008 B1 KR101187008 B1 KR 101187008B1
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South Korea
Prior art keywords
refrigerant
compressor
refrigeration
variable
state sensor
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KR1020100037744A
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Korean (ko)
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KR20110118251A (en
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유병석
전유신
최현근
정희섭
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유병석
정희섭
최현근
전유신
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • 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
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/003—Control issues for charging or collecting refrigerant to or from a 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/022—Compressor control for multi-stage operation
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/195—Pressures of the condenser
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21163—Temperatures of a condenser of the refrigerant at the outlet of the condenser

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

본 발명은, 압축기에 또 다른 실내 냉장냉동유닛을 병렬연결하더라도 냉매를 별도로 충전할 필요가 없을 뿐만 아니라 압축기에 이미 병렬연결된 실내 냉장냉동유닛을 분리하더라도 냉매를 회수할 필요가 없는 냉매량 가변형 냉장냉동장치에 관한 것이다.
본 발명에 따른 냉매량 가변형 냉장냉동장치는, 하나의 압축기에 다수의 실내 냉장냉동유닛이 병렬연결되는 멀티냉장냉동장치에 있어서, 냉매를 고온고압으로 압축시켜 토출하는 압축기와, 상기 압축기에 직렬연결되고 상기 압축기로부터 토출된 고온고압의 냉매를 실외공기와의 열교환을 통해 응축시키는 응축기와, 상기 응축기에 병렬연결되고 상기 응축기에 의해 응축된 냉매를 팽창시키는 다수의 팽창밸브와, 상기 실내 냉장냉동유닛들에 각각 구비되고 일단은 상기 팽창밸브에 각각 직렬연결되며 상기 팽창밸브에 의해 팽창된 냉매를 증발시키는 증발기와, 상기 응축기와 상기 팽창밸브 사이 및 상기 증발기들과 상기 압축기 사이에 각각 설치되고 냉매의 상태를 측정하는 냉매상태센서와, 상기 냉매상태센서와 상기 압축기 사이에 설치되고 상기 냉매상태센서의 센서신호에 따라 상기 압축기로 제공될 냉매를 회수하여 저장하거나 또는 상기 압축기로 냉매를 부가적으로 제공하는 냉매회수충전기와, 상기 냉매상태센서에 연결되고 상기 냉매상태센서의 센서신호를 수신하여 상기 압축기와 상기 냉매회수충전기의 작동을 제어하는 컨트롤러를 포함하여 이루어지는 것을 특징으로 한다.The present invention does not need to separately charge refrigerant even when another indoor refrigeration unit is connected to the compressor in parallel, and the refrigerant amount variable refrigeration apparatus does not need to recover the refrigerant even when the indoor refrigeration unit is already connected in parallel to the compressor. It is about.
According to an aspect of the present invention, there is provided a variable refrigeration refrigerator according to the present invention. A condenser for condensing the high temperature and high pressure refrigerant discharged from the compressor through heat exchange with outdoor air, a plurality of expansion valves connected in parallel to the condenser and expanding the refrigerant condensed by the condenser, and the indoor refrigeration refrigeration units And an evaporator for respectively evaporating the refrigerant expanded by the expansion valve, each of which is connected in series with the expansion valve, and is installed between the condenser and the expansion valve and between the evaporators and the compressor, respectively. And a refrigerant state sensor for measuring a phase and installed between the refrigerant state sensor and the compressor. A refrigerant recovery charger for recovering and storing the refrigerant to be provided to the compressor or additionally providing the refrigerant to the compressor according to a sensor signal of the refrigerant state sensor, and a sensor signal of the refrigerant state sensor connected to the refrigerant state sensor. And receiving and controlling a controller for controlling the operation of the compressor and the refrigerant recovery charger.

Description

냉매량 가변형 멀티냉장냉동장치{MULTI-REFRIGERATING APPARATUS WITH VARIABLE REFRIGERANTS}MULTI-REFRIGERATING APPARATUS WITH VARIABLE REFRIGERANTS}

본 발명은 하나의 압축기에 다수의 실내 냉장냉동유닛이 병렬연결되는 멀티냉장냉동장치에 관한 것으로, 더욱 상세하게는 압축기에 이미 병렬연결된 실내 냉장냉동유닛을 분리하더라도 냉매를 별도로 회수할 필요가 없을 뿐만 아니라 압축기에 또 다른 실내 냉장냉동유닛을 병렬연결하더라도 냉매를 별도로 충전할 필요가 없는 냉매량 가변형 냉장냉동장치에 관한 것이다. The present invention relates to a multi-refrigeration refrigeration apparatus in which a plurality of indoor refrigeration refrigeration units are connected in parallel to one compressor, and more particularly, even if the indoor refrigeration refrigeration units are already connected in parallel to the compressor, there is no need to separately recover the refrigerant. Rather, it relates to a refrigerant type variable refrigeration refrigeration apparatus that does not need to separately charge refrigerant even when another indoor refrigeration unit is connected to the compressor in parallel.

최근 들어 하나의 압축기에 냉장고, 냉동고, 에어컨과 같은 다수의 냉장냉동유닛이 병렬연결되는 멀티냉장냉동장치가 많이 사용되고 있다.Recently, a plurality of refrigeration refrigeration units, such as a refrigerator, a freezer, and an air conditioner, are connected in parallel to a single compressor.

이러한 멀티냉장냉동장치는 냉매를 고온고압으로 압축시켜 토출하는 압축기와, 이 압축기에 직렬연결되고 고온고압의 냉매를 실외공기와의 열교환을 통해 응축시키는 응축기(실외기)와, 이 응축기에 병렬연결되고 응축된 냉매를 팽창시키는 다수의 팽창밸브와, 냉장고, 냉동고, 에어컨과 같은 실내 냉장냉동유닛에 구비되며 일단은 팽창밸브에 각각 직렬연결되고 타단은 압축기에 연결되며 팽창된 냉매를 증발시켜 압축기로 다시 제공하는 증발기(실내기)를 포함하여 이루어지는 구성을 가진다.Such a multi-refrigeration refrigerator includes a compressor for compressing and discharging a refrigerant at high temperature and high pressure, a condenser (outdoor unit) connected in series with the compressor and condensing the refrigerant having high temperature and high pressure through heat exchange with outdoor air, and connected in parallel with the condenser. It is provided in a plurality of expansion valves for expanding the condensed refrigerant, and in indoor refrigeration refrigeration units such as refrigerators, freezers, and air conditioners. It has a configuration including an evaporator (indoor) to provide.

종래의 멀티냉장냉동장치는 최초 설치시에 실내 냉장냉동유닛의 종류와 개수가 특정됨에 따라, 특정 종류와 개수의 실내 냉장냉동유닛에 필요한 냉매에 상응하는 용량을 가지는 압축기가 선택적으로 사용되며, 냉매도 특정 종류와 개수의 실내 냉장냉동유닛의 냉장 및 냉동에 필요한 양으로 미리 충전되므로, 압축기에 또 다른 실내 냉장냉동유닛을 병렬연결하는 경우에는 냉매를 별도로 충전하여야 함은 물론 압축기의 용량부족으로 인해 실내 냉장냉동유닛의 냉장냉동성능이 떨어지는 문제점이 있으며, 압축기에 이미 병렬연결된 실내 냉장냉동유닛을 분리하는 경우에는 잉여 냉매를 회수하여야 하는 문제점이 있었다. In the conventional multi-refrigeration refrigeration apparatus, as the type and number of indoor refrigeration refrigeration units are specified at the time of initial installation, a compressor having a capacity corresponding to the refrigerant required for a specific type and number of indoor refrigeration refrigeration units is selectively used. Since the specific type and number of indoor refrigeration refrigeration unit of the refrigeration unit and the amount required for pre-charging, in the case of connecting another indoor refrigerating refrigeration unit in parallel, the refrigerant must be charged separately, due to the lack of capacity of the compressor There is a problem that the refrigerating refrigeration performance of the indoor refrigeration refrigeration unit is inferior, and when the indoor refrigeration refrigeration unit is already connected to the compressor in parallel, there is a problem in that the excess refrigerant has to be recovered.

따라서, 본 발명의 목적은, 압축기에 이미 병렬연결된 실내 냉장냉동유닛을 분리하더라도 냉매를 별도로 회수할 필요가 없을 뿐만 아니라 압축기에 또 다른 실내 냉장냉동유닛을 병렬연결하더라도 냉매를 별도로 충전할 필요가 없는 냉매량 가변형 냉장냉동장치를 제공하는 것이다.Therefore, an object of the present invention is that, even if the indoor refrigeration refrigeration unit already connected in parallel to the compressor does not need to recover the refrigerant separately, and even if the compressor is connected to another indoor refrigeration refrigeration unit in parallel, it is not necessary to separately charge the refrigerant. It is to provide a refrigeration freezing device of variable refrigerant amount.

전술한 본 발명의 목적들은, 하나의 압축기에 다수의 실내 냉장냉동유닛이 병렬연결되는 멀티냉장냉동장치에 있어서, 냉매를 고온고압으로 압축시켜 토출하는 압축기와, 상기 압축기에 직렬연결되고 상기 압축기로부터 토출된 고온고압의 냉매를 실외공기와의 열교환을 통해 응축시키는 응축기와, 상기 응축기에 병렬연결되고 상기 응축기에 의해 응축된 냉매를 팽창시키는 다수의 팽창밸브와, 상기 실내 냉장냉동유닛들에 각각 구비되고 일단은 상기 팽창밸브에 각각 직렬연결되며 상기 팽창밸브에 의해 팽창된 냉매를 증발시키는 증발기와, 상기 응축기와 상기 팽창밸브 사이 및 상기 증발기들과 상기 압축기 사이에 각각 설치되고 냉매의 상태를 측정하는 냉매상태센서와, 상기 냉매상태센서와 상기 압축기 사이에 설치되고 상기 냉매상태센서의 센서신호에 따라 상기 압축기로 제공될 냉매를 회수하여 저장하거나 또는 상기 압축기로 냉매를 부가적으로 제공하는 냉매회수충전기와, 상기 압축기와 상기 냉매상태센서에 연결되고 상기 냉매상태센서의 센서신호를 수신하여 상기 압축기와 상기 냉매회수충전기의 작동을 제어하는 컨트롤러를 포함하여 이루어지는 것을 특징으로 하는 냉매량 가변형 멀티냉장냉동장치를 제공함에 의해 달성된다.The above object of the present invention is a multi-refrigeration refrigeration apparatus in which a plurality of indoor refrigeration refrigerating units are connected in parallel to a single compressor, comprising: a compressor for compressing and discharging a refrigerant at high temperature and high pressure; A condenser for condensing the discharged high temperature and high pressure refrigerant through heat exchange with outdoor air, a plurality of expansion valves connected in parallel to the condenser and expanding the refrigerant condensed by the condenser, and the indoor refrigeration refrigeration units, respectively. And an evaporator having one end connected in series with each of the expansion valves to evaporate the refrigerant expanded by the expansion valve, respectively installed between the condenser and the expansion valve and between the evaporators and the compressor to measure the state of the refrigerant. A refrigerant state sensor, and installed between the refrigerant state sensor and the compressor, A refrigerant recovery charger for recovering and storing a refrigerant to be provided to the compressor according to a slow signal, or additionally providing a refrigerant to the compressor, and connected to the compressor and the refrigerant state sensor and receiving a sensor signal of the refrigerant state sensor It is achieved by providing a refrigerant amount variable multi-refrigeration refrigeration apparatus comprising a controller for controlling the operation of the compressor and the refrigerant recovery charger.

본 발명의 바람직한 특징에 따르면, 상기 냉매회수충전기는, 상기 냉매상태센서에 분기연결되는 냉매회수제어밸브와, 상기 냉매회수제어밸브에 연결되어 회수된 냉매를 1차적으로 저장하는 어큐뮬레이터와, 상기 어큐뮬레이터에 연결되고 회수된 냉매를 고온고압으로 압축하는 냉매회수용 압축기와, 일단은 상기 냉매회수용 압축기에 연결되고 타단은 상기 냉매회수용 압축기와 상기 어큐뮬레이터로 각각 연결되어 기체상태의 냉매만 상기 어큐뮬레이터로 이송시키는 냉매회수용 분리기와, 상기 어큐뮬레이터에 연결되고 회수된 냉매가 2차적으로 저장되는 냉매탱크와, 일단은 상기 냉매탱크에 연결되고 타단은 상기 압축기에 분기연결되는 냉매충전용 팽창밸브와, 상기 냉매충전용 팽창밸브와 상기 압축기 사이에 설치되어 회수된 냉매를 다시 상기 압축기로 제공하는 냉매충전제어밸브를 포함하여 이루어진다.According to a preferred feature of the present invention, the refrigerant recovery charger, a refrigerant recovery control valve branched to the refrigerant state sensor, an accumulator for storing the recovered refrigerant connected to the refrigerant recovery control valve primarily, the accumulator A refrigerant recovery compressor connected to the refrigerant recovery compressor for compressing the recovered refrigerant at a high temperature and high pressure, and one end is connected to the refrigerant recovery compressor, and the other end is connected to the refrigerant recovery compressor and the accumulator so that only a refrigerant in a gaseous state is returned to the accumulator. A refrigerant recovery separator to be transferred, a refrigerant tank connected to the accumulator, and a refrigerant tank secondaryly stored therein; an expansion valve for refrigerant charging connected to one end of the refrigerant tank and the other end branched to the compressor; The refrigerant recovered between the expansion valve for refrigerant charge and the compressor is recovered. It comprises a refrigerant filling control valve provided in the compressor.

본 발명의 더 바람직한 특징에 따르면, 상기 응축기와 상기 팽창밸브들 사이에 설치되는 수액기와, 상기 수액기와 상기 팽창밸브들 사이에 설치되는 필터드라이어와, 상기 냉매상태센서와 상기 압축기 사이에 설치되고 기체상태의 냉매만 상기 압축라로 제공하는 액분리기를 더 포함하여 이루어진다.According to a more preferred feature of the invention, the receiver is installed between the condenser and the expansion valves, the filter dryer is installed between the receiver and the expansion valves, the refrigerant state sensor and the compressor is installed between the gas It further comprises a liquid separator which provides only the refrigerant in the state to the compression la.

본 발명의 바람직한 특징에 따르면, 상기 컨트롤러와 유선 또는 무선에 의해 연결되어 상기 컨트롤러의 모니터링및 원격제어를 가능하게 하고 상기 냉매상태센서의 센서신호 데이터와 상기 컨트롤러에 의한 제어 데이터가 수신 및 저장되는 컴퓨터를 더 포함하여 이루어진다.According to a preferred feature of the invention, the computer is connected to the controller by wire or wireless to enable the monitoring and remote control of the controller and the sensor signal data of the refrigerant state sensor and the control data by the controller is received and stored It further comprises.

본 발명의 더욱 바람직한 특징에 따르면, 상기 압축기는 부하에 따라 압축용량이 가변되는 용량가변형 BLDC 압축기이다.According to a more preferred feature of the invention, the compressor is a variable capacity BLDC compressor whose compression capacity is variable depending on the load.

본 발명의 더욱 바람직한 특징에 따르면, 상기 실내 냉장냉동유닛에 포함된 증발기의 양단에는 결합시 개방되고 분리시 폐쇄되는 착탈커넥터가 구비된다.According to a more preferred feature of the invention, both ends of the evaporator included in the indoor refrigeration refrigeration unit is provided with a detachable connector that is open when coupled and closed when separated.

본 발명의 더욱 바람직한 특징에 따르면, 상기 냉매상태센서는 냉매의 압력, 온도 또는 점도를 측정한다.According to a more preferred feature of the invention, the refrigerant state sensor measures the pressure, temperature or viscosity of the refrigerant.

본 발명에 따른 냉매량 가변형 멀티냉장냉동장치에 의하면, 증발기들과 압축기 사이에 설치되는 냉매상태센서에 의해 측정된 냉매의 압력이 예를 들어 실내 냉장냉동유닛의 분리에 의해 설정값을 초과할 경우에는 냉매회수충전기에 의해 압축기로 제공될 냉매가 회수되고 냉매상태센서에 의해 측정된 냉매의 압력이 예를 들어 실내 냉장냉동유닛의 추가에 의해 설정값 미만으로 감소할 경우에는 냉매회수충전기에 의해 압축기로 냉매가 부가적으로 제공됨에 따라, 압축기에 이미 병렬연결된 실내 냉장냉동유닛을 분리하더라도 냉매를 별도로 회수할 필요가 없을 뿐만 아니라 압축기에 또 다른 실내 냉장냉동유닛을 병렬연결하더라도 냉매를 별도로 충전할 필요가 없는 탁월한 효과가 있다.According to the refrigerant type variable multi-refrigeration refrigerator according to the present invention, when the pressure of the refrigerant measured by the refrigerant state sensor installed between the evaporators and the compressor exceeds the set value, for example, by the separation of the indoor refrigeration refrigeration unit. When the refrigerant to be provided to the compressor is recovered by the refrigerant recovery charger and the pressure of the refrigerant measured by the refrigerant state sensor decreases below the set value by, for example, the addition of an indoor refrigeration refrigeration unit, the refrigerant recovery charger is supplied to the compressor. As the refrigerant is additionally provided, it is not necessary to recover the refrigerant separately even if the indoor refrigeration unit is already connected in parallel to the compressor, and the refrigerant needs to be charged separately even when another indoor refrigeration unit is connected in parallel to the compressor. There is no outstanding effect.

또한 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치에 의하면, 실내 냉장냉동유닛에 포함된 증발기의 양단에는 결합시 개방되고 분리시 폐쇄되는 착탈커넥터가 구비됨에 따라 가동 상태에서도 실내 냉장냉동유닛의 부가설치나 분리가 가능한 탁월한 효과가 있다.In addition, according to the present invention, the refrigerant amount variable multi-refrigeration refrigeration apparatus, both ends of the evaporator included in the indoor refrigeration refrigeration unit is provided with a detachable connector that is open when coupled and closed when separated, the additional installation of the indoor refrigeration refrigeration unit even in the operating state There is an excellent effect that can be separated.

뿐만 아니라 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치에 의하면, 컴퓨터에 의한 모니터링과 원격제어가 가능한 탁월한 효고가 있다.In addition, according to the refrigerant type variable multi-refrigeration refrigerator according to the present invention, there is an excellent effect that can be monitored by the computer and remote control.

도 1은 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치의 개략구조도.1 is a schematic structural diagram of a refrigerant amount variable multi-refrigeration refrigerator according to the present invention.

이하에는, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. , And this does not mean that the technical idea and scope of the present invention are limited.

본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)는, 압축기(10)에 이미 병렬연결된 실내 냉장냉동유닛(3)을 분리하더라도 냉매를 별도로 회수할 필요가 없을 뿐만 아니라 압축기(10)에 또 다른 실내 냉장냉동유닛(3)을 병렬연결하더라도 냉매를 별도로 충전할 필요가 없도록 하기 위한 것으로, 도 1에 도시되는 바와 같이, 냉매를 고온고압으로 압축시켜 토출하는 압축기(10)와, 압축기(10)에 직렬연결되고 압축기(10)로부터 토출된 고온고압의 냉매를 실외공기와의 열교환을 통해 응축시키는 응축기(20)와, 응축기(20)에 병렬연결되고 응축기(20)에 의해 응축된 냉매를 팽창시키는 다수의 팽창밸브(30)와, 실내 냉장냉동유닛들(3)에 각각 구비되고 일단은 팽창밸브(30)에 각각 직렬연결되며 팽창밸브(30)에 의해 팽창된 냉매를 증발시키는 증발기(40)와, 응축기(20)와 팽창밸브들(30) 사이 및 증발기들(40)과 압축기(10) 사이에 각각 설치되고 냉매의 상태를 측정하는 냉매상태센서(50)와, 냉매상태센서(50)와 압축기(10) 사이에 설치되고 냉매상태센서(50)의 센서신호에 따라 압축기(10)로 제공될 냉매를 회수하여 저장하거나 또는 압축기(10)로 냉매를 부가적으로 제공하는 냉매회수충전기(60)와, 압축기(10)와 냉매상태센서(50)에 연결되고 냉매상태센서(50)의 센서신호를 수신하여 압축기(10)와 냉매회수충전기(60)의 작동을 제어하는 컨트롤러(70)를 포함하여 이루어진다.According to the present invention, the variable refrigerant type refrigeration apparatus (1) according to the present invention does not need to separately recover the refrigerant even if the indoor refrigeration unit (3), which is already connected in parallel with the compressor (10), is further removed from the compressor (10). Even if the indoor refrigeration refrigerating unit (3) is connected in parallel so as not to charge the refrigerant separately, as shown in Figure 1, the compressor 10 to compress and discharge the refrigerant at high temperature and high pressure, and the compressor 10 And a condenser 20 for condensing the high temperature and high pressure refrigerant discharged from the compressor 10 through heat exchange with outdoor air, and the refrigerant condensed by the condenser 20 in parallel with the condenser 20. And a plurality of expansion valves 30 and indoor refrigeration refrigerating units 3, respectively, one end of which is connected in series to the expansion valve 30 and an evaporator 40 for evaporating the refrigerant expanded by the expansion valve 30. ), Condenser (20) Between the expansion valves 30 and between the evaporators 40 and the compressor 10, respectively, the refrigerant state sensor 50 for measuring the state of the refrigerant, and between the refrigerant state sensor 50 and the compressor 10 A refrigerant recovery charger 60 installed therein and recovering and storing the refrigerant to be provided to the compressor 10 according to the sensor signal of the refrigerant state sensor 50 or additionally providing the refrigerant to the compressor 10 and the compressor 10. And a controller 70 connected to the refrigerant state sensor 50 and controlling the operation of the compressor 10 and the refrigerant recovery charger 60 by receiving a sensor signal of the refrigerant state sensor 50.

여기서, 압축기(10)는 냉매를 고온고압으로 압축시켜 토출함에 따라 냉매의 순환을 가능하게 하는 것으로, 실내 냉장냉동유닛(3)의 분리 또는 부가설치에 따른 부하변동에 따라 압축용량이 가변되는 용량가변형 BLDC 압축기로 형성되는 것이 바람직하다. Here, the compressor 10 is to enable the circulation of the refrigerant by compressing the refrigerant at a high temperature and high pressure discharge, the capacity of the compression capacity is variable according to the load fluctuations according to the separation or additional installation of the indoor refrigeration refrigeration unit (3) It is preferably formed of a variable BLDC compressor.

용량가변형 BLDC 압축기는 브러시리스 직류모터가 내장됨에 따라 부하변동에 따라 그 출력이 변경될 수 있는 구조를 가지는 것으로, 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)의 경우에는 이러한 용량가변형 BLDC 압축기의 적용에 의해 실내 냉장냉동유닛(3)의 분리 또는 부가설치에도 불구하고 압축기(10)의 다른 압축용량으로 변경할 필요가 없게 된다. The variable capacity BLDC compressor has a structure in which the output thereof can be changed according to the load change as the brushless DC motor is built in. In the case of the refrigerant variable variable type refrigeration refrigerator 1 according to the present invention, such a variable variable BLDC compressor By the application of, it is not necessary to change to another compression capacity of the compressor 10 in spite of the removal or addition of the indoor refrigerating refrigeration unit 3.

전술한 압축기(10)에는 응축기(20)가 직렬연결되는데, 이 응축기(20)는 압축기(10)로부터 토출된 고온고압의 냉매를 실외공기와의 열교환을 통해 응축시키는 실외기에 해당하는 것으로, 냉매의 관류가 가능한 공랭식 열교환기로서, 입형 셸튜브식, 횡형 셸튜브식, 2중관식 등 다양한 구조로 형성될 수 있다. The condenser 20 is connected to the compressor 10 in series. The condenser 20 corresponds to an outdoor unit that condenses the high temperature and high pressure refrigerant discharged from the compressor 10 through heat exchange with outdoor air. As an air-cooled heat exchanger capable of flowing through, it may be formed in various structures such as a vertical shell tube type, a horizontal shell tube type, and a double tube type.

전술한 응축기(20)에는 다수의 팽창밸브(30)가 병렬연결되는데, 이 팽창밸브(30)는 응축기(20)로부터 유입되는 고압의 액체냉매를 저압의 냉매로 팽창시켜 그 끓는점을 낮춤으로써 증발이 용이하게 일어날 수 있도록 하는 것으로, 모세관을 포함하는 팽창밸브 뿐만 아니라 전자식 팽창밸브도 사용될 수 있다.A plurality of expansion valves 30 are connected in parallel to the condenser 20, and the expansion valves 30 evaporate by expanding the high pressure liquid refrigerant flowing from the condenser 20 into a low pressure refrigerant to lower its boiling point. To facilitate this, electronic expansion valves as well as expansion valves including capillaries can be used.

전술한 팽창밸브(30)에는 증발기(40)가 각각 직렬연결되는데, 이 증발기(40)는 팽창밸브(30)에 의해 팽창된 냉매를 실내공기와의 열교환을 통해 증발시켜 냉장고, 냉동고, 에어컨과 같은 다수의 냉장냉동유닛의 냉장 또는 냉동기능을 가능하게 하는 실내기에 해당하는 것으로, 실내 냉장냉동유닛들(3)의 부품으로서 실내 냉장냉동유닛들(3)에 설치된다.An evaporator 40 is connected in series to each of the expansion valves 30, and the evaporator 40 evaporates the refrigerant expanded by the expansion valve 30 through heat exchange with indoor air, and the refrigerator, freezer and air conditioner. Corresponding to the indoor unit that enables the refrigerating or freezing function of the same number of refrigeration refrigeration units, it is installed in the indoor refrigeration refrigeration units (3) as a part of the indoor refrigeration refrigeration units (3).

또한 실내 냉장냉동유닛(3)에 포함된 증발기(40)의 양단에는 착탈커넥터(41)가 구비되는데, 이 착탈커넥터(41)는 하나의 압축기(10)에 다수의 실내 냉장냉동유닛(3)이 병렬연결되는 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)에 있어서 실내 냉장냉동유닛(3)의 분리 또는 부가설치를 가능하게 하는 것으로, 결합시에는 팽창밸브(30)에 의해 팽창된 냉매가 증발기(40)로 유입되어 압축기(10)로 순환되도록 유로를 개방시키고 분리시에는 팽창밸브(30)에 의해 팽창된 냉매가 증발기(40)로 유입되지 않음과 동시에 압축기(10)로 순환되던 냉매가 역방향으로 누설되지 않도록 유로를 폐쇄시킬 수 있는 구조를 가진다. 이러한 착탈커넥터(41)의 구조는 유체시스템에서 이미 공지되어 있는 바, 여기서 상세설명은 생략하기로 한다. In addition, both ends of the evaporator 40 included in the indoor refrigeration refrigeration unit (3) is provided with a detachable connector 41, the detachable connector 41 is a plurality of indoor refrigeration refrigeration unit (3) in one compressor (10) In the parallel variable refrigerant refrigeration apparatus (1) according to the present invention connected in parallel it is possible to separate or additional installation of the indoor refrigeration refrigeration unit (3), the refrigerant expanded by the expansion valve (30) when combined Is introduced into the evaporator 40 and the flow path is opened to circulate to the compressor 10, and when separated, the refrigerant expanded by the expansion valve 30 does not flow into the evaporator 40 and is circulated to the compressor 10 at the same time. It has a structure that can close the flow path so that the refrigerant does not leak in the reverse direction. The structure of the detachable connector 41 is already known in the fluid system, and details thereof will be omitted.

전술한 전술한 응축기(20)와 팽창밸브들(30) 사이 및 증발기들(40)과 압축기(10) 사이에는 냉매상태센서(50)가 각각 설치되는데, 이 냉매상태센서(50)는 병렬연결된 실내 냉장냉동유닛(3)의 전후에 설치되어 온도, 압력 또는 점도와 같은 냉매의 상태를 측정하여 그 센서신호를 컨트롤러(70)로 제공함에 따라 실내 냉장냉동유닛(3)의 전후의 냉매상태변화에 따라 압축기(10) 및 차후에 설명될 냉매회수충전기(60)의 작동이 제어될 수 있도록 하는 것으로, 냉매가 흐르는 관로 내에 설치되는 통상의 기계식 또는 전자식 온도센서, 압력센서 또는 점도센서로 형성된다.The refrigerant state sensor 50 is installed between the above-described condenser 20 and expansion valves 30 and between the evaporators 40 and the compressor 10, respectively, and the refrigerant state sensors 50 are connected in parallel. It is installed before and after the indoor refrigeration refrigeration unit (3) to measure the state of the refrigerant, such as temperature, pressure or viscosity, and provides the sensor signal to the controller 70 to change the refrigerant state before and after the indoor refrigeration refrigeration unit (3) In order to control the operation of the compressor 10 and the refrigerant recovery charger 60 to be described later, it is formed of a conventional mechanical or electronic temperature sensor, a pressure sensor or a viscosity sensor installed in the pipeline through which the refrigerant flows.

전술한 냉매상태센서(50)와 압축기(10) 사이에는 냉매회수충전기(60)가 설치되는데, 이 냉매회수충전기(60)는 병렬연결된 실내 냉장냉동유닛(3)의 전후에서 냉매상태센서(50)에 의해 측정된 냉매의 상태(온도, 압력 또는 점도 등)변화가 예를 들어 실내 냉장냉동유닛(3)의 분리에 의해 설정값을 초과할 경우에는 압축기(10)로 제공될 냉매를 회수하여 저장하고 병렬연결된 실내 냉장냉동유닛(3)의 전후에서 냉매상태센서(50)에 의해 측정된 냉매의 상태(온도, 압력 또는 점도 등)변화가 예를 들어 실내 냉장냉동유닛(3)의 추가설치에 의해 설정값 미만으로 감소할 경우에는 압축기(10)로 냉매를 부가적으로 제공함으로써, 압축기(10)에 이미 병렬연결된 실내 냉장냉동유닛(3)을 분리하더라도 냉매를 별도로 회수할 필요가 없을 뿐만 아니라 압축기(10)에 또 다른 실내 냉장냉동유닛(3)을 병렬연결하더라도 냉매를 별도로 충전할 필요가 없도록 하는 것으로, 냉매상태센서(50)에 분기연결되고 압축기(10)로 제공될 냉매를 회수하여 저장하는 경우에만 개방되는 냉매회수제어밸브(61)와, 냉매회수제어밸브(61)에 연결되어 회수된 냉매를 1차적으로 저장하는 어큐뮬레이터(62)와, 어큐뮬레이터(62)에 연결되고 회수된 냉매를 고온고압으로 압축하는 냉매회수용 압축기(63)와, 일단은 냉매회수용 압축기(63)에 연결되고 타단은 냉매회수용 압축기(63)와, 어큐뮬레이터(62)로 각각 연결되어 기체상태의 냉매만 어큐뮬레이터(62)로 이송시키는 냉매회수용 분리기(64)와, 어큐뮬레이터(62)에 연결되고 회수된 냉매가 2차적으로 저장되는 냉매탱크(65)와, 일단은 냉매탱크(65)에 연결되고 타단은 압축기(10)에 분기연결되는 냉매충전용 팽창밸브(66)와, 냉매충전용 팽창밸브(66)와 압축기(10) 사이에 설치되어 회수된 냉매를 다시 압축기(10)로 제공하는 냉매충전제어밸브(67)를 포함하여 이루어진다.A refrigerant recovery charger 60 is installed between the above-described refrigerant state sensor 50 and the compressor 10. The refrigerant recovery charger 60 is a refrigerant state sensor 50 before and after the indoor refrigeration refrigeration unit 3 connected in parallel. If the change in the state (temperature, pressure or viscosity, etc.) of the refrigerant measured by the above value exceeds, for example, the separation of the indoor refrigerator freezer unit 3, the refrigerant to be provided to the compressor 10 is recovered. Changes in the state (temperature, pressure or viscosity, etc.) of the refrigerant measured by the refrigerant state sensor 50 before and after the indoor refrigeration refrigeration unit 3 stored and connected in parallel, for example, additional installation of the indoor refrigeration refrigeration unit 3 When the temperature decreases below the set value, the refrigerant is additionally provided to the compressor 10, so that the refrigerant may not be recovered separately even if the indoor refrigeration refrigeration unit 3, which is already connected in parallel with the compressor 10, is removed. As well as another room in the compressor 10 Refrigerant recovery unit 3 is connected to the refrigeration refrigeration unit (3) so that it is not necessary to charge the refrigerant separately, the refrigerant recovery which is only branched to the refrigerant state sensor 50 and opened only when recovering and storing the refrigerant to be provided to the compressor 10 A accumulator 62 connected to the control valve 61, the refrigerant recovery control valve 61 to store the recovered refrigerant primarily, and a refrigerant circuit connected to the accumulator 62 to compress the recovered refrigerant to high temperature and high pressure. The receiving compressor 63, one end is connected to the refrigerant recovery compressor 63, the other end is connected to the refrigerant recovery compressor 63 and the accumulator 62, respectively, to transfer only the refrigerant in the gas state to the accumulator 62 Refrigerant recovery separator 64, a refrigerant tank (65) connected to the accumulator (62), and the recovered refrigerant is stored secondary, one end is connected to the refrigerant tank (65), and the other end branches to the compressor (10). Expansion bell for refrigerant charging It comprises a 66, and a refrigerant filling control valve 67 to provide a refrigerant charging expansion valve 66 and the compressor 10 is re-compressor 10 is provided between the refrigerant recovery for.

냉매회수충전기(60)의 작동을 설명하면 다음과 같다: 예를 들어 실내 냉장냉동유닛(3)의 분리에 의해 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)를 관류하는 냉매량이 실내 냉장냉동유닛(3)의 냉장에 필요한 양보다 상대적으로 많게 되어, 병렬연결된 실내 냉장냉동유닛(3)의 전후에서 냉매상태센서(50)에 의해 측정된 냉매의 상태(온도, 압력 또는 점도 등)변화가 설정값을 초과할 경우에는, 컨트롤러(도시되지 않음)의 제어에 의해 냉매회수제어밸브(61)가 개방되어 어큐뮬레이터(62) 내로 1차적으로 적정량이 회수되고, 이렇게 회수된 냉매는 냉매회수용 압축기(63) 및 냉매회수용 분리기(64)를 거쳐 기체상태로 냉매탱크(65)로 저장된다. 이 때 냉매충전제어밸브(67)는 폐쇄된다. 또한 예를 들어 또 다른 실내 냉장냉동유닛(3)의 부가설치에 의해 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)를 관류하는 냉매량이 실내 냉장냉동유닛(3)의 냉장에 필요한 양보다 상대적으로 적게 되어, 병렬연결된 실내 냉장냉동유닛(3)의 전후에서 냉매상태센서(50)에 의해 측정된 냉매의 상태(온도, 압력 또는 점도 등)변화가 설정값을 미만으로 감소할 경우에는, 냉매충전제어밸브(67)가 개방되어 냉매탱크(65)에 저장된 냉매가 냉매충전용 팽창밸브(66)에 의해 팽창되어 감압된 상태로 압축기(10)로 제공된다.The operation of the refrigerant recovery charger 60 will be described as follows: The amount of refrigerant flowing through the refrigerant variable variable type refrigeration refrigerator 1 according to the present invention, for example, by the separation of the indoor refrigeration refrigeration unit 3. Changes in the state of the refrigerant (temperature, pressure or viscosity, etc.) measured by the refrigerant state sensor 50 before and after the parallel refrigerated indoor refrigeration unit (3) connected to each other is greater than the amount required for refrigeration of the unit (3). When the set value is exceeded, the refrigerant recovery control valve 61 is opened by the control of a controller (not shown), and an appropriate amount is recovered primarily into the accumulator 62. The refrigerant thus recovered is a refrigerant recovery compressor. Through the 63 and the refrigerant recovery separator 64 is stored in the refrigerant tank 65 in a gaseous state. At this time, the refrigerant charge control valve 67 is closed. Further, for example, the amount of refrigerant flowing through the refrigerant variable variable type refrigeration refrigerator 1 according to the present invention by additional installation of another indoor refrigeration refrigeration unit 3 is relatively higher than the amount required for refrigeration of the indoor refrigeration refrigeration unit 3. When the change in the state (temperature, pressure or viscosity, etc.) of the refrigerant measured by the refrigerant state sensor 50 before and after the indoor refrigeration refrigeration unit 3 connected in parallel decreases to less than the set value, the refrigerant The charge control valve 67 is opened to provide the compressor 10 with the refrigerant stored in the refrigerant tank 65 expanded by the expansion valve 66 for refrigerant charging and decompressed.

전술한 압축기(10)와 냉매상태센서(50)에는 컨트롤러(70)가 연결되는데, 이 컨트롤러(70)는 냉매상태센서(50)의 센서신호를 수신하여 자체 연산을 통해 압축기(10)와 냉매회수충전기(70)의 작동을 제어하는 것으로, 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)의 작동을 위한 제어알고리즘에 따라 설계된 인쇄회로기판(보드형)으로 형성된다. The controller 70 is connected to the compressor 10 and the refrigerant state sensor 50 described above. The controller 70 receives a sensor signal from the refrigerant state sensor 50 and performs a calculation on its own to the compressor 10 and the refrigerant. By controlling the operation of the recovery charger 70, it is formed of a printed circuit board (board type) designed in accordance with the control algorithm for the operation of the refrigerant variable variable type refrigeration freezing apparatus (1) according to the present invention.

전술한 응축기(20)와 팽창밸브들(30) 사이에는 수액기(80)가 설치되는데, 이 수액기(80)는 응축기(20)에서 응축된 액상의 냉매를 일시 저장하고 증발기들(40) 내에서 소요되는 만큼의 냉매만을 팽창밸브들(30)로 보내주게 역할을 하는 일종의 안전장치에 해당한다. The receiver 80 is installed between the condenser 20 and the expansion valves 30 described above. The receiver 80 temporarily stores the refrigerant of the liquid condensed in the condenser 20 and evaporators 40. It corresponds to a kind of safety device that serves to send only the refrigerant required in the expansion valves (30).

전술한 수액기(80)와 팽창밸브들(30) 사이에는 필터드라이어(90)가 설치되는데, 이 필터드라이어(90)는 냉매속에 포함된 수분이나 먼지 등과 같은 이물질을 걸러주는 역할을 한다. A filter drier 90 is installed between the receiver 80 and the expansion valves 30. The filter drier 90 filters foreign substances such as moisture or dust contained in the refrigerant.

전술한 냉매상태센서(50)와 압축기(10) 사이에는 액분리기(100)가 설치되는데, 이 액분리기(100)는 기체상태의 냉매만 압축기로 제공함으로서 액상의 냉매 유입에 따른 압축기(10)의 손상을 방지하는 역할을 한다. 이 경우에 냉매회수충전기(60)의 냉매회수제어밸브(61)는 액분리기(100)의 상류에서 분기연결되고, 냉매회수충전기(60)의 냉매충전제어밸브(67)는 액분리기(100)의 상류에서 분기연결된다.The liquid separator 100 is installed between the refrigerant state sensor 50 and the compressor 10 described above, and the liquid separator 100 provides only the refrigerant in the gas state to the compressor, thereby providing the compressor 10 according to the inflow of the refrigerant in the liquid phase. Serves to prevent damage. In this case, the refrigerant recovery control valve 61 of the refrigerant recovery charger 60 is branched upstream of the liquid separator 100, and the refrigerant charge control valve 67 of the refrigerant recovery charger 60 is the liquid separator 100. Branched upstream of

전술한 컨트롤러(70)에는 컴퓨터(110)가 유선 또는 무선에 의해 연결되는데, 이 컴퓨터(110)는 냉매상태센서(50)의 센서신호 데이터와 컨트롤러(70)에 의한 제어 데이터가 수신 및 저장되어 컨트롤러(70)의 모니터링을 가능하게 하고, 경우에 따라서는 컨트롤러(70)의 원격제어를 가능하게 하는 역할을 하는 것으로, 모니터를 포함하는 통상의 컴퓨터로 이루어진다. The computer 110 is connected to the controller 70 by wire or wirelessly. The computer 110 receives and stores sensor signal data of the refrigerant state sensor 50 and control data by the controller 70. It is possible to monitor the controller 70, and in some cases, to enable the remote control of the controller 70, and comprises a conventional computer including a monitor.

따라서, 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)를 사용할 경우에는, 병렬연결된 실내 냉장냉동유닛(3)의 전후에서 냉매상태센서(50)에 의해 측정된 냉매의 상태(온도, 압력 또는 점도 등)변화가 예를 들어 실내 냉장냉동유닛(3)의 분리에 의해 설정값을 초과할 경우에는 냉매회수충전기(60)에 의해 압축기(10)로 제공될 냉매가 회수되고 병렬연결된 실내 냉장냉동유닛(3)의 전후에서 냉매상태센서(50)에 의해 측정된 냉매의 상태(온도, 압력 또는 점도 등)변화가 예를 들어 실내 냉장냉동유닛(3)의 추가에 의해 설정값 미만으로 감소할 경우에는 냉매회수충전기(60)에 의해 압축기로 냉매가 부가적으로 제공됨에 따라, 냉매회수충전기(60)에 의한 냉매량(냉매압) 자동조절에 의해 압축기(10)에 이미 병렬연결된 실내 냉장냉동유닛(3)을 분리하더라도 냉매를 별도로 회수할 필요가 없을 뿐만 아니라 압축기(10)에 또 다른 실내 냉장냉동유닛(3)을 병렬연결하더라도 냉매를 별도로 충전할 필요가 없게 된다.Therefore, in the case of using the refrigerant type variable multi-refrigeration refrigerator 1 according to the present invention, the state (temperature, pressure or the state of the refrigerant measured by the refrigerant state sensor 50 before and after the parallel-connected indoor refrigeration unit 3). When the viscosity exceeds the set value, for example, by the separation of the indoor refrigeration refrigeration unit (3), the refrigerant to be provided to the compressor (10) is recovered by the refrigerant recovery charger (60), and the indoor refrigeration refrigeration is connected in parallel. The change in the state (temperature, pressure or viscosity, etc.) of the coolant measured by the coolant condition sensor 50 before and after the unit 3 may be reduced below the set value by, for example, the addition of the indoor refrigeration refrigeration unit 3. In the case, as the refrigerant is additionally provided to the compressor by the refrigerant recovery charger 60, the indoor refrigeration unit is already connected in parallel to the compressor 10 by automatic adjustment of the amount of refrigerant (refrigerant pressure) by the refrigerant recovery charger 60. Cold even if you remove (3) As there is a need to recover, not separate even if parallel connection of another indoor refrigeration freezing unit 3 to the compressor 10, it is not necessary to charge the refrigerant separately.

또한 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)를 사용할 경우에는, 실내 냉장냉동유닛(3)에 포함된 증발기(40)의 양단에는 결합 또는 분리에 따라냉매의 유로를 자동으로 개폐시키는 착탈커넥터(41)가 구비됨에 따라, 가동 상태에서도 냉매의 누설없이 실내 냉장냉동유닛(3)를 부가적으로 설치하거나 분리할 수 있다.In addition, when using the refrigerant type variable multi-refrigeration refrigerator 1 according to the present invention, the both ends of the evaporator 40 included in the indoor refrigeration refrigeration unit (3) detachable to automatically open and close the flow path of the refrigerant in accordance with the coupling or separation As the connector 41 is provided, the indoor refrigerating refrigeration unit 3 can be additionally installed or removed even in the operating state without leakage of the refrigerant.

뿐만 아니라 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1)를 사용할 경우에는, 유선 또는 무선에 의해 컨트롤러(70)에 연결된 컴퓨터(110)에 의해 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치(1) 전체를 모니터링하거나 원격제어할 수도 있다In addition, in the case of using the refrigerant variable variable refrigeration refrigerator 1 according to the present invention, by the computer 110 connected to the controller 70 by wire or wireless, the refrigerant amount variable multi-refrigeration refrigerator 1 according to the present invention (1) You can monitor or remotely control the whole

1 : 본 발명에 따른 냉매량 가변형 멀티냉장냉동장치
3 : 실내 냉장냉동유닛
10 : 압축기
20 : 응축기
30 : 팽창밸브
40 : 증발기
41 : 착탈커넥터
50 : 냉매상태센서
60 : 냉매회수충전기
61 : 냉매회수제어밸브
62 : 어큐뮬레이터
63 : 냉매회수용 압축기
64 : 냉매회수용 분리기
65 : 냉매탱크
66 : 냉매충전용 팽창밸브
67 : 냉매충전제어밸브
70 : 컨트롤러
80 : 수액기
90 : 필터드라이어
100 : 액분리기
110 : 컴퓨터1: Refrigerant variable variable refrigeration apparatus according to the present invention
3: indoor refrigeration unit
10: compressor
20 condenser
30: Expansion valve
40: evaporator
41: detachable connector
50: refrigerant state sensor
60: refrigerant recovery charger
61: refrigerant recovery control valve
62: accumulator
63: refrigerant recovery compressor
64: refrigerant recovery separator
65: refrigerant tank
66: expansion valve for refrigerant charging
67: refrigerant charge control valve
70: controller
80: receiver
90: filter drier
100: liquid separator
110: computer

Claims (7)

하나의 압축기에 다수의 실내 냉장냉동유닛이 병렬연결되는 멀티냉장냉동장치에 있어서,
냉매를 고온고압으로 압축시켜 토출하는 압축기;
상기 압축기에 직렬연결되고 상기 압축기로부터 토출된 고온고압의 냉매를 실외공기와의 열교환을 통해 응축시키는 응축기;
상기 응축기에 병렬연결되고 상기 응축기에 의해 응축된 냉매를 팽창시키는 다수의 팽창밸브;
상기 실내 냉장냉동유닛들에 각각 구비되고 일단은 상기 팽창밸브에 각각 직렬연결되며 상기 팽창밸브에 의해 팽창된 냉매를 증발시키는 증발기;
상기 응축기와 상기 팽창밸브 사이 및 상기 증발기들과 상기 압축기 사이에 각각 설치되고 상기 압축기로 순환되는 냉매의 상태를 측정하는 냉매상태센서;
상기 냉매상태센서와 상기 압축기 사이에 설치되고 상기 냉매상태센서의 센서신호에 따라 상기 압축기로 제공될 냉매를 회수하여 저장하거나 또는 상기 압축기로 냉매를 부가적으로 제공하는 냉매회수충전기; 및
상기 압축기와 상기 냉매상태센서에 연결되고 상기 냉매상태센서의 센서신호를 수신하여 상기 압축기와 상기 냉매회수충전기의 작동을 제어하는 컨트롤러를 포함하여 이루어지고,
상기 냉매회수충전기는, 상기 냉매상태센서에 분기연결되는 냉매회수제어밸브와, 상기 냉매회수제어밸브에 연결되어 회수된 냉매를 1차적으로 저장하는 어큐뮬레이터와, 상기 어큐뮬레이터에 연결되고 회수된 냉매를 고온고압으로 압축하는 냉매회수용 압축기와, 일단은 상기 냉매회수용 압축기에 연결되고 타단은 상기 냉매회수용 압축기와 상기 어큐뮬레이터로 각각 연결되어 기체상태의 냉매만 상기 어큐뮬레이터로 이송시키는 냉매회수용 분리기와, 상기 어큐뮬레이터에 연결되고 회수된 냉매가 2차적으로 저장되는 냉매탱크와, 일단은 상기 냉매탱크에 연결되고 타단은 상기 압축기에 분기연결되는 냉매충전용 팽창밸브와, 상기 냉매충전용 팽창밸브와 상기 압축기 사이에 설치되어 회수된 냉매를 다시 상기 압축기로 제공하는 냉매충전제어밸브를 포함하여 이루어지는 것을 특징으로 하는 냉매량 가변형 멀티냉장냉동장치. In the multi-refrigeration refrigeration apparatus in which a plurality of indoor refrigeration refrigeration units are connected in parallel to one compressor,
A compressor for compressing and discharging the refrigerant at high temperature and high pressure;
A condenser connected to the compressor in series and condensing the high temperature and high pressure refrigerant discharged from the compressor through heat exchange with outdoor air;
A plurality of expansion valves connected in parallel to the condenser and expanding the refrigerant condensed by the condenser;
An evaporator provided at each of the indoor refrigeration refrigeration units and having one end connected in series to the expansion valve and evaporating the refrigerant expanded by the expansion valve;
A refrigerant state sensor installed between the condenser and the expansion valve and between the evaporators and the compressor and measuring a state of the refrigerant circulated to the compressor;
A refrigerant recovery charger installed between the refrigerant state sensor and the compressor and recovering and storing a refrigerant to be provided to the compressor according to a sensor signal of the refrigerant state sensor or additionally providing a refrigerant to the compressor; And
And a controller connected to the compressor and the refrigerant state sensor and controlling the operation of the compressor and the refrigerant recovery charger by receiving a sensor signal of the refrigerant state sensor.
The refrigerant recovery charger may include a refrigerant recovery control valve branched to the refrigerant state sensor, an accumulator primarily storing the recovered refrigerant connected to the refrigerant recovery control valve, and a refrigerant connected and recovered to the accumulator at a high temperature. A refrigerant recovery compressor for compressing at a high pressure, and a refrigerant recovery separator connected to the refrigerant recovery compressor and the other end connected to the refrigerant recovery compressor and the accumulator, and transferring only a gaseous refrigerant to the accumulator; A refrigerant tank connected to the accumulator and storing the recovered refrigerant secondaryly, an expansion valve for refrigerant charging, one end of which is connected to the refrigerant tank and the other end of which is branched to the compressor, an expansion valve for refrigerant charging, and the compressor Refrigerant charge control to provide the compressor with the recovered refrigerant installed between Multi-variable refrigerant cold storage refrigeration apparatus comprising the probe. 청구항 1에 있어서,
상기 응축기와 상기 팽창밸브들 사이에 설치되는 수액기와, 상기 수액기와 상기 팽창밸브들 사이에 설치되는 필터드라이어와, 상기 냉매상태센서와 상기 압축기 사이에 설치되고 기체상태의 냉매만 상기 압축기로 제공하는 액분리기를 더 포함하여 이루어지는 것을 특징으로 하는 냉매량 가변형 멀티냉장냉동장치.The method according to claim 1,
A receiver installed between the condenser and the expansion valves, a filter drier installed between the receiver and the expansion valves, and a refrigerant installed between the refrigerant state sensor and the compressor and providing a gaseous refrigerant to the compressor. Refrigerant variable variable refrigerating refrigeration apparatus characterized in that it further comprises a liquid separator. 청구항 1에 있어서,
상기 컨트롤러와 유선 또는 무선에 의해 연결되어 상기 컨트롤러의 모니터링및 원격제어를 가능하게 하고 상기 냉매상태센서의 센서신호 데이터와 상기 컨트롤러에 의한 제어 데이터가 수신 및 저장되는 컴퓨터를 더 포함하여 이루어지는 냉매량 가변형 멀티냉장냉동장치. The method according to claim 1,
The controller may be connected to the controller by wire or wirelessly to enable monitoring and remote control of the controller, and further comprising a computer configured to receive and store sensor signal data of the refrigerant state sensor and control data by the controller. Refrigeration freezer. 청구항 1 내지 청구항 3 중 어느 하나의 항에 있어서,
상기 압축기는 부하에 따라 압축용량이 가변되는 용량가변형 BLDC 압축기인 것을 특징으로 하는 냉매량 가변형 멀티냉장냉동장치.The method according to any one of claims 1 to 3,
Wherein the compressor is a variable variable amount of variable BLDC compressor characterized in that the compression capacity is variable according to the load. 청구항 1 내지 청구항 3 중 어느 하나의 항에 있어서,
상기 실내 냉장냉동유닛에 포함된 증발기의 양단에는 결합시 개방되고 분리시 폐쇄되는 착탈커넥터가 구비되는 것을 특징으로 하는 냉매량 가변형 멀티냉장냉동장치.The method according to any one of claims 1 to 3,
Refrigerant variable variable refrigerating and refrigerating device, characterized in that the both ends of the evaporator included in the indoor refrigeration refrigeration unit is provided with a detachable connector that is open when coupled and closed when separated. 청구항 1 내지 청구항 3 중 어느 하나의 항에 있어서,
상기 냉매상태센서는 냉매의 압력, 온도 또는 점도를 측정하는 것을 특징으로 하는 냉매량 가변형 멀티냉장냉동장치. The method according to any one of claims 1 to 3,
The refrigerant state sensor is a refrigerant amount variable type multi refrigeration refrigeration apparatus, characterized in that for measuring the pressure, temperature or viscosity of the refrigerant. 삭제delete
KR1020100037744A 2010-04-23 2010-04-23 Multi-refrigerating apparatus with variable refrigerants KR101187008B1 (en)

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CN111735263B (en) * 2020-07-23 2024-02-13 珠海格力电器股份有限公司 Refrigerating system, storage and temperature adjusting method thereof
CN112594982B (en) * 2020-12-31 2022-12-13 广东积微科技有限公司 Vacuumizing control method of multi-split system

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WO2017099913A1 (en) * 2015-12-11 2017-06-15 The Coca-Cola Company Systems and methods for providing a phase change material panel and charging unit for cooling a cabinet of a merchandiser

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