MY201322A - Control method and device for use in electronic expansion valve, and cooling system - Google Patents

Control method and device for use in electronic expansion valve, and cooling system

Info

Publication number
MY201322A
MY201322A MYPI2019003296A MYPI2019003296A MY201322A MY 201322 A MY201322 A MY 201322A MY PI2019003296 A MYPI2019003296 A MY PI2019003296A MY PI2019003296 A MYPI2019003296 A MY PI2019003296A MY 201322 A MY201322 A MY 201322A
Authority
MY
Malaysia
Prior art keywords
evaporator
value
opening degree
electronic expansion
expansion valve
Prior art date
Application number
MYPI2019003296A
Inventor
Yantao Gu
Jing Wang
Yong Zhang
Haitao Yang
Feng Li
Original Assignee
Midea Group Co Ltd
Chongqing midea general refrigeration equipment 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 Midea Group Co Ltd, Chongqing midea general refrigeration equipment co ltd filed Critical Midea Group Co Ltd
Publication of MY201322A publication Critical patent/MY201322A/en

Links

Classifications

    • 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
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • 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
    • 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
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Control Of Temperature (AREA)

Abstract

A control method and device for use in a electronic expansion valve, and a cooling system, wherein the control method comprises: obtaining a temperature difference Tp at end portions of an evaporator; comparing Tp with a target value Ts used for controlling the temperature difference at the end portions of the evaporator, so as to obtain a difference value Tp between the two; determining an opening degree value of an electronic expansion valve on the basis of a relationship between Tp and a preset deviation value; controlling the opening degree of the electronic expansion valve, and adjusting the same to the determined opening degree value. The present method detects a real-time value of a temperature difference Tp at end portions of an evaporator, and then compares the real-time Tp value with a target control value Ts used for controlling the temperature difference at the end portions of the evaporator; if a difference Tp between the two is larger than the deviation allowed, then the opening degree of an valve will be increased, and if the difference is smaller than the deviation allowed, the opening degree of the valve will be decreased; thus, changes in the opening degree of the electronic expansion valve may be regulated, which allows for the most appropriate liquid supply amount to be provided to the evaporator, and minimizes the temperature difference Tp between heat exchanging ends of the evaporator, thus ensuring that the heat exchanging performance of the evaporator is given full play. Figure 1
MYPI2019003296A 2016-12-12 2017-12-01 Control method and device for use in electronic expansion valve, and cooling system MY201322A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611141505.5A CN106595141B (en) 2016-12-12 2016-12-12 Control method and device of electronic expansion valve and refrigerating system
PCT/CN2017/114315 WO2018107982A1 (en) 2016-12-12 2017-12-01 Control method and device for use in electronic expansion valve, and cooling system

Publications (1)

Publication Number Publication Date
MY201322A true MY201322A (en) 2024-02-16

Family

ID=58598871

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2019003296A MY201322A (en) 2016-12-12 2017-12-01 Control method and device for use in electronic expansion valve, and cooling system

Country Status (4)

Country Link
CN (1) CN106595141B (en)
MY (1) MY201322A (en)
RU (1) RU2744305C2 (en)
WO (1) WO2018107982A1 (en)

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CN111319645A (en) * 2020-03-30 2020-06-23 中车大连机车研究所有限公司 A CO2 refrigerant air conditioning control system for locomotives
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CN112665245B (en) * 2020-12-16 2022-04-08 珠海格力电器股份有限公司 Load regulation control method and device of water chilling unit and water chilling unit
CN112629020B (en) * 2020-12-17 2023-04-14 青岛海尔新能源电器有限公司 Heat pump water heater and control method for heat pump water heater
CN112682990B (en) * 2020-12-28 2022-03-18 江苏拓米洛环境试验设备有限公司 Control method and system for environmental protection test equipment
CN112856875B (en) * 2021-01-19 2022-04-08 乐金空调(山东)有限公司 Automatic throttle expansion control method
CN113280541B (en) * 2021-06-29 2022-09-20 江苏拓米洛环境试验设备有限公司 Control method and device for multi-chamber electronic expansion valve of refrigeration system and refrigeration system
CN113587524A (en) * 2021-07-15 2021-11-02 珠海格力电器股份有限公司 Water chilling unit bypass adjustment control method and system and water chilling unit
CN114165899B (en) * 2021-11-26 2022-12-09 青岛海信日立空调系统有限公司 Multi-split system
CN114594810B (en) * 2022-03-03 2023-08-01 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） Temperature control method and device and electronic equipment
CN114484954B (en) * 2022-03-09 2023-09-22 广东开利暖通空调股份有限公司 Control method, control device and air source heat pump system of electronic expansion valve
CN114719470B (en) * 2022-03-24 2024-05-17 浙江中广电器集团股份有限公司 Accurate control method of electronic expansion valve based on exhaust temperature control
CN114873674B (en) * 2022-05-24 2023-09-05 深圳市家家分类科技有限公司 Low-temperature evaporation system, method and device
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CN115654758B (en) * 2022-09-27 2025-05-13 珠海格力电器股份有限公司 A method, device and unit for determining liquid in suction of a compressor
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CN115854444B (en) * 2022-12-08 2025-10-31 青岛海信日立空调系统有限公司 Air conditioner and control method thereof
CN115585565A (en) * 2022-12-12 2023-01-10 顿汉布什(中国)工业有限公司 Accurate control method for electric throttling mechanism of large-cooling-capacity centrifugal unit
CN116709724B (en) * 2023-04-17 2025-10-31 东北大学 Control system and control method for data center cabinet level cooling terminal
CN116642278B (en) * 2023-04-19 2024-03-19 江森自控日立万宝空调(广州)有限公司 Control method and device for electronic expansion valve and storage medium
CN116518600A (en) * 2023-07-05 2023-08-01 中建环能科技股份有限公司 Control method for refrigerating performance of compressor of heat pump low-temperature drying equipment and electronic equipment
WO2025007305A1 (en) * 2023-07-05 2025-01-09 中建环能科技股份有限公司 Low-energy-consumption control method for heat pump low-temperature dryer, electronic device and storage medium
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Also Published As

Publication number Publication date
RU2744305C2 (en) 2021-03-05
CN106595141B (en) 2019-12-27
RU2019120164A3 (en) 2021-01-12
RU2019120164A (en) 2021-01-12
CN106595141A (en) 2017-04-26
WO2018107982A1 (en) 2018-06-21

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