KR940018635A - Refrigeration cycle unit - Google Patents
Refrigeration cycle unit Download PDFInfo
- Publication number
- KR940018635A KR940018635A KR1019930032344A KR930032344A KR940018635A KR 940018635 A KR940018635 A KR 940018635A KR 1019930032344 A KR1019930032344 A KR 1019930032344A KR 930032344 A KR930032344 A KR 930032344A KR 940018635 A KR940018635 A KR 940018635A
- Authority
- KR
- South Korea
- Prior art keywords
- value
- expansion valve
- electromagnetic expansion
- detected
- maximum value
- Prior art date
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract 8
- 230000003247 decreasing effect Effects 0.000 claims abstract 5
- 238000001514 detection method Methods 0.000 claims 8
- 239000003507 refrigerant Substances 0.000 claims 2
- 230000005856 abnormality Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
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
- 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
- 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
- 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
- F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
-
- 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/15—Hunting, i.e. oscillation of controlled refrigeration variables reaching undesirable values
-
- 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
- F25B2600/021—Inverters therefor
-
- 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
- F25B2600/21—Refrigerant outlet evaporator temperature
-
- 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)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
본 발명은 과열도를 설정치로 신속하게 마무리시킬 수 있고, 항상 안정된 운전이 가능한 냉동사이클 장치를 제공하는 냉동사이클 장치에 관한것으로, 설정치 SHs와 과열도 SH와의 차 △SH의 최대치 △SHmax를 순서대로 검출하는 동시에 그 최대치 △SHmax의 감소 방향의 변화량을 검출하고, 그 변화량이 설정치 이하이고 또한 그때의 최대치 △SHmax가 소정치 이상의 상태에 있는지 여부를 판정하고, 그 판정이 소정회수 연속해서 만족될때 전자 팽창밸브(11)(21)에 대한 개도 제어치를 감소 방향으로 보정하는 것을 특징으로 한다.The present invention relates to a refrigeration cycle apparatus that provides a refrigeration cycle apparatus capable of quickly finishing the superheat degree to a set value and enabling stable operation at all times, wherein the maximum value ΔSH max of the difference ΔSH between the set value SH s and the superheat degree SH is determined. sequence detected at the same time detecting the amount of change in the decreasing direction of its maximum value △ SH max, and that, as is not more than the change in the set point Additionally, the maximum value △ SH max at that time determines whether the state more than the prescribed value, the judgment is a predetermined number of consecutive And the opening degree control value for the electromagnetic expansion valves (11) (21) is corrected in the decreasing direction when satisfied.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제 1 도는 본 발명의 제 1 실시예의 냉동 사이클의 구성도, 제 2 도는 제 1 실시예에 있어서 제어회로의 구성도, 제 5 도는 제 1 실시예의 작용을 설명하기 위한 플로우챠트.1 is a configuration diagram of a refrigerating cycle according to a first embodiment of the present invention, FIG. 2 is a configuration diagram of a control circuit in the first embodiment, and FIG. 5 is a flowchart for explaining the operation of the first embodiment.
Claims (3)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1161893 | 1993-01-27 | ||
JP93-11618 | 1993-01-27 | ||
JP05242506A JP3117339B2 (en) | 1993-01-27 | 1993-09-29 | Refrigeration cycle device |
JP93-242506 | 1993-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR940018635A true KR940018635A (en) | 1994-08-18 |
Family
ID=26347076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930032344A KR940018635A (en) | 1993-01-27 | 1993-12-31 | Refrigeration cycle unit |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP3117339B2 (en) |
KR (1) | KR940018635A (en) |
CN (1) | CN1071882C (en) |
GB (1) | GB2274930B (en) |
TW (1) | TW228024B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100366449B1 (en) * | 2000-10-12 | 2002-12-31 | 주식회사 엘지이아이 | Control Device and Control Method of 3 way valve |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5533347A (en) * | 1993-12-22 | 1996-07-09 | Novar Electronics Corporation | Method of refrigeration case control |
US6148628A (en) * | 1999-03-26 | 2000-11-21 | Carrier Corporation | Electronic expansion valve without pressure sensor reading |
US7201008B2 (en) * | 2003-05-05 | 2007-04-10 | Carrier Corporation | Vapor compression system performance enhancement and discharge temperature reduction in the unloaded mode of operation |
KR100579564B1 (en) * | 2004-04-12 | 2006-05-15 | 엘지전자 주식회사 | LEV control method of cooling cycle apparatus |
KR100664085B1 (en) * | 2005-11-24 | 2007-01-03 | 엘지전자 주식회사 | Apparatus for controlling air conditioner |
JP4935403B2 (en) * | 2007-02-14 | 2012-05-23 | 富士電機株式会社 | Refrigerant flow control device |
US7784296B2 (en) * | 2007-03-08 | 2010-08-31 | Nordyne Inc. | System and method for controlling an air conditioner or heat pump |
JP4905271B2 (en) * | 2007-06-29 | 2012-03-28 | ダイキン工業株式会社 | Refrigeration equipment |
CN101852523B (en) * | 2009-03-31 | 2012-01-11 | 海尔集团公司 | Superheat degree control method and system for refrigeration circulation system |
JP6076583B2 (en) * | 2011-01-19 | 2017-02-08 | 三菱重工業株式会社 | heat pump |
US9746224B2 (en) * | 2012-11-21 | 2017-08-29 | Liebert Corporation | Expansion valve setpoint control systems and methods |
US10174977B2 (en) | 2012-11-21 | 2019-01-08 | Vertiv Corporation | Apparatus and method for subcooling control based on superheat setpoint control |
CN104110799B (en) * | 2013-05-30 | 2016-12-07 | 广东美的制冷设备有限公司 | The integrated control method of air-conditioner electric expansion valve and circuit |
CN103982987B (en) * | 2014-05-07 | 2016-08-31 | 广东美的暖通设备有限公司 | Prevent the method and system of coolant bias current, multi-connected air conditioner in multi-connected air conditioner |
DK201470338A1 (en) * | 2014-06-06 | 2015-05-11 | Danfoss As | A method for detecting instability in a refrigeration system |
CN106403425B (en) * | 2015-07-27 | 2019-04-12 | 青岛海尔空调电子有限公司 | A kind of control method for electronic expansion valve of water chiller |
JP6468300B2 (en) * | 2017-02-13 | 2019-02-13 | 株式会社富士通ゼネラル | Air conditioner |
CN107401811A (en) * | 2017-07-26 | 2017-11-28 | 日照职业技术学院 | Air conditioner defrosting system for automobile |
CN110285618B (en) * | 2019-06-27 | 2020-03-27 | 山东建筑大学 | Frequency conversion control device and control method of heat pump |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2909190B2 (en) * | 1990-11-02 | 1999-06-23 | 株式会社東芝 | Air conditioner |
-
1993
- 1993-09-29 JP JP05242506A patent/JP3117339B2/en not_active Expired - Lifetime
- 1993-12-15 TW TW082110655A patent/TW228024B/zh not_active IP Right Cessation
- 1993-12-30 GB GB9326573A patent/GB2274930B/en not_active Expired - Fee Related
- 1993-12-31 KR KR1019930032344A patent/KR940018635A/en not_active Application Discontinuation
- 1993-12-31 CN CN93119985A patent/CN1071882C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100366449B1 (en) * | 2000-10-12 | 2002-12-31 | 주식회사 엘지이아이 | Control Device and Control Method of 3 way valve |
Also Published As
Publication number | Publication date |
---|---|
GB2274930B (en) | 1996-02-07 |
CN1071882C (en) | 2001-09-26 |
GB9326573D0 (en) | 1994-03-02 |
TW228024B (en) | 1994-08-11 |
CN1093792A (en) | 1994-10-19 |
GB2274930A (en) | 1994-08-10 |
JPH06281234A (en) | 1994-10-07 |
JP3117339B2 (en) | 2000-12-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |