JP2007085615A - 熱源装置 - Google Patents
熱源装置 Download PDFInfo
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- JP2007085615A JP2007085615A JP2005273672A JP2005273672A JP2007085615A JP 2007085615 A JP2007085615 A JP 2007085615A JP 2005273672 A JP2005273672 A JP 2005273672A JP 2005273672 A JP2005273672 A JP 2005273672A JP 2007085615 A JP2007085615 A JP 2007085615A
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- 239000003507 refrigerant Substances 0.000 claims abstract description 119
- 238000001514 detection method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 238000012545 processing Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000012267 brine Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
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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
- 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
- F25B41/345—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids
- F25B41/347—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids with the valve member being opened and closed cyclically, e.g. with pulse width modulation
-
- 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
- F25B2500/26—Problems to be solved characterised by the startup of the refrigeration 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/026—Compressor control by controlling unloaders
-
- 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
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
-
- 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
- F25B2700/193—Pressures of the compressor
- F25B2700/1933—Suction pressures
-
- 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
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
【解決手段】チラーユニットの起動後は電子膨張弁に10パルスの開指令を出力し、一定時間の経過後(始動アンロード時)、100〜150パルスの開指令を出力し一定の開度まで開く。その後、吐出側冷媒過熱度TdSHを監視し、例えば、TdSHが20deg℃まで、1パルス/秒の閉指令を電子膨張弁3に出力し短時間で閉方向に駆動する。TdSHが20deg℃に達した後はTdSHが25deg℃となるまで1パルス/3秒の閉指令を電子膨張弁3に出力し、TdSHが20℃となるまでの閉方向速度より小の閉方向速度で電子膨張弁3を駆動する。TdSHが25deg℃に達した後は安定運転に移行したと判断し吸入側冷媒過熱度TsSHを監視して電子膨張弁の開度を制御する。
【選択図】 図4
Description
また、演算処理部9は、圧縮機吐出ガス温度検知器7の検知温度と、圧縮機吐出圧力検知器8の検知ガス圧力値とから、後述する吐出側冷媒過熱度を演算する。
図1、図2を参照して、基本的冷凍サイクルの運転状態を以下に説明する。
2 空気側熱交換器(凝縮器)
3 電子膨張弁
4 水側熱交換器(蒸発器)
5 吸入ガス温度検知器
6 吸入圧力検知器
7 吐出ガス温度検知器
8 吐出圧力検知器
9 演算処理部
Claims (10)
- 冷媒の圧縮機と、凝縮器と、電子膨張弁と、蒸発器と、上記圧縮機の冷媒吸入側温度検知器と、上記圧縮器の吸入圧力検知器と、上記圧縮機の冷媒吐出側温度検知器と、上記圧縮器の吐出圧力検知器とを有する熱源装置において、
熱源装置の起動時に、上記電子膨張弁を所定の開度まで開き、上記圧縮機の吐出側冷媒過熱度が所定の吐出側過熱度となるまで上記電子膨張弁が閉となる方向に駆動し、上記吐出側冷媒過熱度が上記所定の吐出側過熱度に到達した後は、上記圧縮機の吸入側冷媒過熱度が所定の吸入側冷媒温度になるように、上記電子膨張弁の開度を制御する開度制御部を備えることを特徴とする熱源装置。 - 請求項1記載の熱源装置において、上記圧縮機の吐出側冷媒過熱度が所定の吐出側過熱度となるまで上記電子膨張弁が閉となる方向に駆動する期間に、上記開度制御部は、起動時から上記吐出側冷媒過熱度が所定の吐出側過熱度となるに従って、上記電子膨張弁を閉とする速度を遅くすることを特徴とする熱源装置。
- 請求項2記載の熱源装置において、上記開度制御部は、上記圧縮機の吐出側冷媒過熱度が、上記所定の吐出側過熱度より小さな値の第1の過熱度になるまでは、閉方向への駆動信号を第1の周期で上記電子膨張弁に出力し、上記圧縮機の吐出側冷媒過熱度が上記第1の過熱度に到達した後は、上記所定の吐出側過熱度となるまで、上記第1の周期より長い第2の周期で、閉方向への駆動信号を上記電子膨張弁に出力することを特徴とする熱源装置。
- 請求項2記載の熱源装置において、上記開度制御部は、上記圧縮機の吐出側冷媒過熱度が、上記所定の吐出側過熱度より小さな値の第1の過熱度になるまでは、上記電子膨張弁の開度を第1の速度で閉方向に駆動し、上記圧縮機の吐出側冷媒過熱度が上記第1の過熱度に到達した後は、上記所定の吐出側過熱度となるまで、上記第1の速度より遅い第2の速度で、上記電子膨張弁が閉となる方向に駆動することを特徴とする熱源装置。
- 請求項1、2、3、4のうちのいずれか一項記載の熱源装置において、上記開度制御部は、上記吐出側冷媒過熱度が上記所定の吐出側過熱度に到達し、上記圧縮機の吸入側冷媒過熱度が所定の吸入側冷媒温度になるように、上記電子膨張弁の開度を制御し、上記吐出側過熱度又は上記吸入側過熱度が、所定の吐出側過熱度範囲又は吸入側過熱度範囲を超えた場合、吐出側冷媒過熱度が、上記所定の吐出側過熱度範囲内となるように電子膨張弁の開度を制御し、吐出側冷媒過熱度が、上記所定の吐出側過熱度範囲内となった後は、上記圧縮機の吸入側冷媒過熱度が所定の吸入側冷媒温度になるように、上記電子膨張弁の開度を制御することを特徴とする熱源装置。
- 請求項1、2、3、4のうちのいずれか一項記載の熱源装置において、上記開度制御部は、上記吐出側冷媒過熱度が上記所定の吐出側過熱度に到達し、上記圧縮機の吸入側冷媒過熱度が所定の吸入側冷媒温度になるように、上記電子膨張弁の開度を制御し、上記吐出側過熱度又は上記吸入側過熱度が、所定の吐出側過熱度範囲又は吸入側過熱度範囲を超えた場合、上記所定の吸入側冷媒温度を変更し、上記圧縮機の吸入側冷媒過熱度が、上記変更した吸入側冷媒温度になるように、上記電子膨張弁の開度を制御することを特徴とする熱源装置。
- 請求項1、2、3、4のうちのいずれか一項記載の熱源装置において、上記開度制御部は、上記圧縮機の吐出側冷媒過熱度が所定の吐出側過熱度となるまで上記電子膨張弁を閉となる方向に駆動する期間に、上記圧縮機の吸入圧力が、所定圧力値未満となった場合には、上記電子膨張弁を開となる方向に駆動して所定の開度とした後、上記圧縮機の吸入側冷媒過熱度が所定の吸入側過熱度となるまで上記電子膨張弁の開度を制御することを特徴とする熱源装置。
- 請求項1〜7のうちのいずれか一項記載の熱源装置において、上記圧縮機は、スクリュー圧縮機であることを特徴とする熱源装置。
- 請求項1〜7のうちのいずれか一項記載の熱源装置において、上記冷媒は、擬似共沸冷媒又は単一冷媒であることを特徴とする熱源装置。
- 冷媒の圧縮機と、凝縮器と、電子膨張弁と、蒸発器と、上記圧縮機の冷媒吸入側温度検知器と、上記圧縮器の吸入圧力検知器と、上記圧縮機の冷媒吐出側温度検知器と、上記圧縮器の吐出圧力検知器とを有する熱源装置の起動方法において、
熱源装置の起動時に、上記電子膨張弁を所定の開度まで開き、
上記圧縮機の吐出側冷媒過熱度が所定の吐出側過熱度となるまで上記電子膨張弁が閉となる方向に駆動し、
上記吐出側冷媒過熱度が上記所定の吐出側過熱度に到達した後は、上記圧縮機の吸入側冷媒過熱度が所定の吸入側冷媒温度になるように、上記電子膨張弁の開度を制御することを特徴とする熱源装置の起動方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2005273672A JP4596426B2 (ja) | 2005-09-21 | 2005-09-21 | 熱源装置 |
US11/447,987 US20070062207A1 (en) | 2005-09-21 | 2006-06-07 | Heat source apparatus and method of starting the apparatus |
CNB2006100916795A CN100498141C (zh) | 2005-09-21 | 2006-06-09 | 热源装置及其起动方法 |
US12/641,364 US8191377B2 (en) | 2005-09-21 | 2009-12-18 | Heat source apparatus and method of starting the apparatus |
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JP2005273672A JP4596426B2 (ja) | 2005-09-21 | 2005-09-21 | 熱源装置 |
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JP2007085615A true JP2007085615A (ja) | 2007-04-05 |
JP4596426B2 JP4596426B2 (ja) | 2010-12-08 |
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JP2005273672A Active JP4596426B2 (ja) | 2005-09-21 | 2005-09-21 | 熱源装置 |
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US (2) | US20070062207A1 (ja) |
JP (1) | JP4596426B2 (ja) |
CN (1) | CN100498141C (ja) |
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CN100498141C (zh) | 2009-06-10 |
US20070062207A1 (en) | 2007-03-22 |
US20100089084A1 (en) | 2010-04-15 |
CN1936463A (zh) | 2007-03-28 |
US8191377B2 (en) | 2012-06-05 |
JP4596426B2 (ja) | 2010-12-08 |
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