JP2002503329A - 冷却チラーの始動方法及び装置 - Google Patents
冷却チラーの始動方法及び装置Info
- Publication number
- JP2002503329A JP2002503329A JP50244299A JP50244299A JP2002503329A JP 2002503329 A JP2002503329 A JP 2002503329A JP 50244299 A JP50244299 A JP 50244299A JP 50244299 A JP50244299 A JP 50244299A JP 2002503329 A JP2002503329 A JP 2002503329A
- Authority
- JP
- Japan
- Prior art keywords
- chiller
- evaporator
- liquid
- level
- expansion valve
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/047—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
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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
- F25B41/315—Expansion valves actuated by floats
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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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
- F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements
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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
- F25B2500/00—Problems to be solved
- F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
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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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/026—Compressor control by controlling unloaders
- F25B2600/0261—Compressor control by controlling unloaders external to the compressor
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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
- 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
- F25B2700/04—Refrigerant level
-
- 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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
-
- 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
- F25B49/022—Compressor control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.冷却チラーであって、 圧縮器と、 凝縮器と、 膨張弁と、 蒸発器とを備え、前記圧縮器と前記凝縮器と前記膨張弁と前記蒸発器とが全て 直列に接続され、 また前記蒸発器及び前記凝縮器の少なくとも一方において液体のレベルを検出 するための手段と、 前記チラーの動作を制御するための手段とを備え、前記チラーの動作を制御す るための前記手段が検出された液体レベルに応じてチラー始動時の前記膨張弁を 位置決めすることを特徴とする冷却チラー。 2.前記検出するための手段が前記蒸発器内に配置されることを特徴とする請求 項1に記載の冷却チラー。 3.前記蒸発器において検出された液体のレベルが所定のレベルより低い場合、 前記制御するため手段が前記膨張弁を相対的により開いた位置に設定することを 特徴とする請求項2に記載の冷却チラー。 4.前記制御するための手段が前記検出するための手段により検出された液体レ ベルを用いて、チラー始動時以外の前記チラーの動作を制御することを特徴とす る請求項3に記載の冷却チラー。 5.前記圧縮器がスクリュー圧縮器であり、前記スクリュー圧縮器が処理能力制 御弁を有し、前記処理能力制御弁の位置が前記チラーの動作を制御するための前 記手段により制御されることを特徴とする請求項4に記載の冷却チラー。 6.前記蒸発器が下流薄膜蒸発器であることを特徴とする請求項5に記載の冷却 チラー。 7.前記制御するための手段が、(i)前記検出するための手段により検出され る液体レベルが所定レベルより低い場合、チラー始動時に前記膨張弁を相対的に より大きく開いた位置に設定し、(ii)前記検出するための手段により検出さ れる液体レベルが所定レベルより高い場合、チラー始動時に前記膨張弁を相対的 により閉じた位置に設定することを特徴とする請求項1に記載の冷却チラー。 8.前記検出するための手段により検出される液体のレベルが前記所定レベルよ り高い場合、前記制御するための手段がチラー始動時に前記圧縮器に負荷をかけ るのを遅らせることを特徴とする請求項7に記載の冷却チラー。 9.前記検出するための手段が前記蒸発器内に配置され、前記制御するための手 段が、前記蒸発器において検出された液体のレベルが前記所定レベルに達する時 点で、チラーが始動する際に相対的により開いた位置に設定されている状態から 相対的により閉じた位置に前記膨張弁を位置付けることを特徴とする請求項7に 記載の冷却チラー。 10.液体チラーであって、 スクリュー圧縮器と、 前記圧縮器から排出された圧縮された冷媒ガスを受取り、そこから油を分離す る油分離器と、 前記圧縮器の処理能力を調節するための手段と、 前記油分離器から冷媒ガスを受取り、前記冷媒を液状に凝縮する凝縮器と、 蒸発器と、 前記凝縮器から前記蒸発器に液体冷媒を計量するための手段と、 前記蒸発器の液体レベルを検出する手段と、 コントローラとを備え、前記コントローラが(i)前記液体レベルを 検出するための手段と、(ii)前記圧縮器の処理能力を調節するための前記手 段と、(iii)前記凝縮器から前記蒸発器に冷媒を計量するための前記手段と 通信状態あり、また前記コントローラが、前記蒸発器において検出される液体レ ベルに応じて、前記チラーが始動する際に前記計量するための手段を位置付ける ことを特徴とする液体チラー。 11.前記計量するための手段が電子工学式膨張弁を備え、また前記蒸発器の液 体レベルが所定のレベルより低いレベルと検出される場合、チラー始動時に前記 コントローラが前記膨張弁を相対的により開いた位置に位置付けることを特徴と する請求項10に記載の液体チラー。 12.前記蒸発器における液体レベルが前記所定のレベルに到達する時点で、前 記制御するための手段が前記相対的により開いた位置から前記膨張弁を閉じるこ とを特徴とする請求項11に記載の液体チラー。 13.前記圧縮器の処理能力を調節するための前記手段が前記圧縮器から排出さ れる冷媒ガスを用いて作動することを特徴とする請求項11に記載の液体チラー 。 14.前記蒸発器が下流薄膜蒸発器であることを特徴とする請求項11に記載の 液体チラー。 15.前記コントローラが、チラー始動時及びそれ以降の動作時の両方において 前記検出するための手段により検出された液体レベルを用いて前記液体チラーの 動作を制御することを特徴とする請求項11に記載の液体チラー。 16.前記蒸発器における液体レベルが前記所定のレベルより高いレベルである と検出される場合、チラー始動後の所定時間、前記制御するための手段が前記圧 縮器の処理能力を調節するための前記手段の位置付けを遅らせることを特徴とす る請求項11に記載の液体チラー。 17.液体チラーを制御する方法であって、 前記チラーを始動する前に、前記チラーの蒸発器及び凝縮器の少なくとも一方 において液体冷媒のレベルを検出する過程と、 検出された液体レベルが所定のレベルより低い場合には、チラー始動時に前記 チラーの膨張弁を第1の位置に位置付ける過程と、 前記検出された液体レベルが前記所定レベルより高い場合には、チラー始動時 に前記チラーの前記膨張弁を第2の位置に位置付ける過程とを有することを特徴 とする方法。 18.前記検出過程が前記蒸発器における前記液体レベルを検出する過程を含む ことを特徴とする請求項17に記載の方法。 19.前記検出過程において検出された液体レベルが前記所定のレベルより高い 場合には、チラー始動後に所定時間、前記チラーの圧縮器に負荷をかけるのを遅 らせる過程をさらに有することを特徴とする請求項18に記載の方法。 20.チラー始動後に概ね前記所定のレベルに前記蒸発器の液体のレベルを保持 する過程をさらに有することを特徴とする請求項18に記載の方法。 21.前記蒸発器において検出された液体レベルが所定のレベルより低い場合に チラー始動時に前記チラーの膨張弁を第1の位置に位置付ける前記過程が、始動 時に前記蒸発器において検出された液体レベルが前記所定のレベルより高い場合 に前記膨張弁を流れる冷媒流と比較して、始動時に前記チラー凝縮器から前記チ ラー蒸発器まで流れる冷媒を相対的に増加させるように前記膨張弁を位置付ける 過程を含むことを特徴とする請求項18に記載の方法。 22.前記蒸発器において検出された液体レベルが、始動時の前記所定のレベル より低いレベルから、前記所定のレベルまで増加した時点で、前記チラー凝縮器 から前記チラー蒸発器までの冷媒流を減少させるよう に前記膨張弁の位置を変更する過程をさらに有することを特徴とする請求項18 に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/872,870 US6035651A (en) | 1997-06-11 | 1997-06-11 | Start-up method and apparatus in refrigeration chillers |
US08/872,870 | 1997-06-11 | ||
PCT/US1998/009668 WO1998057104A1 (en) | 1997-06-11 | 1998-05-12 | Start-up method and apparatus in refrigeration chillers |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002503329A true JP2002503329A (ja) | 2002-01-29 |
JP3892487B2 JP3892487B2 (ja) | 2007-03-14 |
Family
ID=25360483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50244299A Expired - Fee Related JP3892487B2 (ja) | 1997-06-11 | 1998-05-12 | 冷却チラーの始動方法及び装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6035651A (ja) |
EP (1) | EP0988494B1 (ja) |
JP (1) | JP3892487B2 (ja) |
CN (1) | CN1240978C (ja) |
AU (1) | AU7482098A (ja) |
BR (1) | BR9809993A (ja) |
CA (1) | CA2290398C (ja) |
WO (1) | WO1998057104A1 (ja) |
Cited By (2)
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JP2007085615A (ja) * | 2005-09-21 | 2007-04-05 | Hitachi Ltd | 熱源装置 |
JP2012233616A (ja) * | 2011-04-28 | 2012-11-29 | Panasonic Corp | 空気調和装置 |
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1997
- 1997-06-11 US US08/872,870 patent/US6035651A/en not_active Expired - Lifetime
-
1998
- 1998-05-12 WO PCT/US1998/009668 patent/WO1998057104A1/en active IP Right Grant
- 1998-05-12 CA CA002290398A patent/CA2290398C/en not_active Expired - Fee Related
- 1998-05-12 JP JP50244299A patent/JP3892487B2/ja not_active Expired - Fee Related
- 1998-05-12 CN CNB988059002A patent/CN1240978C/zh not_active Expired - Lifetime
- 1998-05-12 EP EP98922222A patent/EP0988494B1/en not_active Expired - Lifetime
- 1998-05-12 AU AU74820/98A patent/AU7482098A/en not_active Abandoned
- 1998-05-12 BR BR9809993-0A patent/BR9809993A/pt not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007085615A (ja) * | 2005-09-21 | 2007-04-05 | Hitachi Ltd | 熱源装置 |
JP4596426B2 (ja) * | 2005-09-21 | 2010-12-08 | 日立アプライアンス株式会社 | 熱源装置 |
JP2012233616A (ja) * | 2011-04-28 | 2012-11-29 | Panasonic Corp | 空気調和装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1240978C (zh) | 2006-02-08 |
JP3892487B2 (ja) | 2007-03-14 |
US6035651A (en) | 2000-03-14 |
EP0988494B1 (en) | 2004-07-28 |
CA2290398C (en) | 2004-05-11 |
WO1998057104A1 (en) | 1998-12-17 |
CA2290398A1 (en) | 1998-12-17 |
AU7482098A (en) | 1998-12-30 |
BR9809993A (pt) | 2000-08-01 |
EP0988494A1 (en) | 2000-03-29 |
CN1259198A (zh) | 2000-07-05 |
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