KR970066368A - Control method of refrigerant flow in multi-room air conditioner - Google Patents

Control method of refrigerant flow in multi-room air conditioner Download PDF

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Publication number
KR970066368A
KR970066368A KR1019960008286A KR19960008286A KR970066368A KR 970066368 A KR970066368 A KR 970066368A KR 1019960008286 A KR1019960008286 A KR 1019960008286A KR 19960008286 A KR19960008286 A KR 19960008286A KR 970066368 A KR970066368 A KR 970066368A
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KR
South Korea
Prior art keywords
refrigerant
temperature
flow
average temperature
reference temperature
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Application number
KR1019960008286A
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Korean (ko)
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KR0159229B1 (en
Inventor
장재석
Original Assignee
구자홍
Lg 전자 주식회사
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Priority to KR1019960008286A priority Critical patent/KR0159229B1/en
Publication of KR970066368A publication Critical patent/KR970066368A/en
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Publication of KR0159229B1 publication Critical patent/KR0159229B1/en

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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
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/67—Switching between heating and cooling modes
    • 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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F25B41/30—Expansion means; Dispositions thereof
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

본 발명은 실내기에서 배출되는 냉매에 평균 온도값에 따라 냉매의 흐름을 제어하여 공기 조화기의 냉방능력 변동 및 과냉각의 발생을 방지하는 것이다.The present invention controls the flow of the refrigerant according to the average temperature value in the refrigerant discharged from the indoor unit to prevent the cooling capacity fluctuation and the supercooling of the air conditioner from being generated.

본 발명은 실내기로 공급되는 냉매의 흐름을 제어할 수 있는 밸브를 구비함과 아울러 각각의 실내기에서 배출되는 냉매의 평균 온도 값을 검출하고, 검출한 평균 온도와 미리 설정된 기준 온도값을 비교하여 평균 온도가 기준 온도값보다 낮을 경우에 냉매의 흐름을 감소시키면서 낮은 정도에 따라 송풍 팬의 속도 및 압축기의 구동을 제어하고, 평균 온도가 기준 온도값보다 높을 경우에는 온도 차에 따라 설정되는 주기로 냉매의 흐름을 개방 및 감소시킴은 물론 냉매의 흐름을 개방 및 감소시키는 시간을 조절한다.The present invention has a valve for controlling the flow of the refrigerant supplied to the indoor unit, detects the average temperature value of the refrigerant discharged from each indoor unit, compares the detected average temperature with a predetermined reference temperature value, And controls the speed of the blowing fan and the driving of the compressor according to the degree of the low temperature while decreasing the flow of the refrigerant when the temperature is lower than the reference temperature value. If the average temperature is higher than the reference temperature value, Regulates the time for opening and reducing the flow as well as opening and reducing the flow of the refrigerant.

Description

다실 공기 조화기의 냉매 흐름 제어방법Control method of refrigerant flow in multi-room air conditioner

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 제어방법에 의한 냉동 사이클의 구성을 보인 도면, 제2도는 본 발명의 제어방법이 적용되는 공기 조화기의 제어 회로도.FIG. 1 is a diagram showing a configuration of a refrigeration cycle by a control method of the present invention, and FIG. 2 is a control circuit diagram of an air conditioner to which the control method of the present invention is applied.

Claims (4)

압축기가 구동될 경우에 냉매의 흐름을 냉매의 흐름을 대기 상태로 하여 감소시키고 설정 시간이 경과되는 지를 판단하는 제1과정과, 상기 제1과정에서 설정 시간이 경과될 경우에 다수의 실내기에서 배출되는 냉매의 평균 온도를 검출하여 미리 세팅된 기준 온도와 비교하는 제2과정과, 상기 제2과정에서 냉매의 평균 온도가 기준 온도보다 낮을 경우에 냉매의 흐름을 개방시키고 평균 온도와 기준 온도의 온도 차에 따라 송풍 팬 및 압축기의 구동을 제어하는 제3과정과, 상기 제2과정에서 냉매의 평균 온도가 기준 온도보다 높을 경우에 평균 온도와 기준 온도의 온도 차에 따라 냉매의 흐름을 개방 및 감소시킬 구동 주기와 구동 시간을 설정하여 냉매의 흐름을 제어하는 제4과정으로 제어됨을 특징으로 하는 다실 공기 조화기의 냉매 흐름 제어방법.A first step of reducing the flow of the refrigerant when the compressor is driven by reducing the flow of the refrigerant to a standby state and determining whether the set time has elapsed; A second step of detecting an average temperature of the refrigerant and comparing the detected average temperature with a preset reference temperature; and if the average temperature of the refrigerant is lower than the reference temperature, A third step of controlling the driving of the blower fan and the compressor according to the difference between the average temperature of the refrigerant and the reference temperature, And controlling a flow of the refrigerant by setting a driving period and a driving time to be performed by the controller. 제1항에 있어서, 제2과정은 기준 온도에 미리 설정된 히스테리시스 온도를 가산 및 감산하여 평균 온도와 비교하는 것을 특징으로 하는 다실 공기 조화기의 냉매 흐름 제어방법.2. The method according to claim 1, wherein the second step is to add and subtract a predetermined hysteresis temperature to a reference temperature and compare the hysteresis temperature with an average temperature. 제1항에 있어서, 제3과정은 냉매의 흐름을 개방시킨 상태에서 미리 설정된 시간이 경과될 경우에 다시 평균 온도를 검출하고, 검출한 평균 온도가 기준 온도에 소정 온도를 감산한 값보다 낮을 경우에 송풍 팬을 '강'으로 구동시키고 평균 온도가 기준 온도에 소정 온도를 감산한 값보다 낮지 않을 경우에 압축기를 정지시키는 것을 특징으로 하는 다실 공기 조화기의 냉매 흐름 제어방법.2. The method according to claim 1, wherein the third step is a step of detecting an average temperature again when a predetermined time elapses in a state in which the flow of the refrigerant is opened, and when the detected average temperature is lower than a value obtained by subtracting the predetermined temperature from the reference temperature And the compressor is stopped when the average temperature is not lower than a value obtained by subtracting the predetermined temperature from the reference temperature. 제1항에 있어서, 제4과정은 냉매의 평균 온도가 기준 온도보다 높을수록 구동주기는 짧고, 구동시간은 길게 설정하는 것을 특징으로 하는 다실 공기 조화기의 냉매 흐름 제어방법.The method according to claim 1, wherein in the fourth step, the drive cycle is short and the drive time is set longer as the average temperature of the coolant is higher than the reference temperature. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960008286A 1996-03-26 1996-03-26 A controlling method for coolant flow in multi-room airconditioner KR0159229B1 (en)

Priority Applications (1)

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KR1019960008286A KR0159229B1 (en) 1996-03-26 1996-03-26 A controlling method for coolant flow in multi-room airconditioner

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Application Number Priority Date Filing Date Title
KR1019960008286A KR0159229B1 (en) 1996-03-26 1996-03-26 A controlling method for coolant flow in multi-room airconditioner

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KR970066368A true KR970066368A (en) 1997-10-13
KR0159229B1 KR0159229B1 (en) 1999-01-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100357522B1 (en) * 2000-12-23 2002-10-19 삼성광주전자 주식회사 Refrigeration system of beverage vending machine
KR100470479B1 (en) * 2002-08-12 2005-02-07 위니아만도 주식회사 Method for detecting refrigerant leakage of a kimchi storage
CN115216784A (en) * 2022-06-28 2022-10-21 中国船舶重工集团公司第七一八研究所 Electrolytic tank operation temperature control method based on refrigerant flow self-correction adjustment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100357522B1 (en) * 2000-12-23 2002-10-19 삼성광주전자 주식회사 Refrigeration system of beverage vending machine
KR100470479B1 (en) * 2002-08-12 2005-02-07 위니아만도 주식회사 Method for detecting refrigerant leakage of a kimchi storage
CN115216784A (en) * 2022-06-28 2022-10-21 中国船舶重工集团公司第七一八研究所 Electrolytic tank operation temperature control method based on refrigerant flow self-correction adjustment
CN115216784B (en) * 2022-06-28 2023-10-27 中国船舶重工集团公司第七一八研究所 Electrolytic tank operation temperature control method and system based on refrigerant flow self-correction

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