TW589441B - Transcritical vapor compression system - Google Patents
Transcritical vapor compression system Download PDFInfo
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- TW589441B TW589441B TW090126390A TW90126390A TW589441B TW 589441 B TW589441 B TW 589441B TW 090126390 A TW090126390 A TW 090126390A TW 90126390 A TW90126390 A TW 90126390A TW 589441 B TW589441 B TW 589441B
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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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
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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
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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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
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
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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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/16—Receivers
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/23—Separators
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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
- F25B2600/05—Refrigerant levels
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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
- F25B2600/17—Control issues by controlling the pressure of the condenser
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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
- F25B2600/2509—Economiser valves
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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
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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
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
- F25B31/008—Cooling of compressor or motor by injecting a liquid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Separation By Low-Temperature Treatments (AREA)
Description
589441 A7 B7
五、發明説明G 發明背景 本發明大致上有關一種用以調節過臨界蒸氣壓縮系統之高 壓分量之機制。 含氯冷媒由於其破壞臭氧之潛在性,而已於世界上大部份 地區被逐步停用。雖然氟化氫碳(HFCs)已被用作取代之冷 媒’但這些冷媒仍然具有高度全球暖化之潛在性。諸如二 氧化碳及丙燒之”天然”冷媒業已提出用作取代之流體。令 人遺憾的是,很多這些流體也同樣具有使用上之問題。二 乳化碳具有低臨界點’這造成大部份利用二氧化碳當作冷 媒之空調系統大部份係在過臨界狀態下運轉。 當一蒸氣壓縮系統係於過臨界下運轉時,其有利的是調節 該系統之高壓分量。藉著調節該系統之高壓,可控制及最 佳化該系統之能力及/或效率。增加該系統之高壓(氣體冷卻 器壓力)將降低在該蒸發器入口之比焓及增加能力。然而因 為該壓縮機必須更辛苦地工作,故耗用更多能量。其有利 的是發現該系統之最佳高壓,該最佳高壓當作操作條件改 變時之變化點。藉著調節該系統之高壓分量,即可選擇最 佳之高壓。 因此’本技藝在此需要一種用以調節過臨界蒸氣壓縮系統 之高壓分量之機制。 發明概要 本發明有關一種用以調節過臨界蒸氣壓縮系統之高壓分量 之機制。 一蒸氣壓縮系統係由一壓縮機、一氣體冷卻器、一膨脹裝 -4 - 本紙張尺度適用中國國家標準(CNS) A4規格(2ΐ〇χ297公釐) 裝 訂
線 589441 A7 B7
置、及一蒸發器所組成。節省循環有時候係用於增加該系 統之效率及/或能力。藉著將離開該散熱式熱交換器之冷媒 膨脹至一中間壓力及把孩冷媒分流成二液流以操作節省循 環。一液流係送至該吸熱式熱交換器,且另一液流係送至 冷卻該二壓縮階段間之流動。於節省循環之一形式中,使 用一快速傳送槽(flash tank)以施行該分離作用。本發明藉 著控制該快速傳送槽中之注液調節該蒸氣壓縮系統之高^ 分量(氣體冷卻器中之壓力)。於本發明之一較佳具體實施例 栌,二氧化碳係用作該冷媒。 於一快速傳送槽中,由該氣體冷卻器所排出之冷媒通過第 一膨脹裝置,及降低其壓力。該冷媒係以部分液體及部分 蒸氣收集在該快速傳送槽中。當冷媒排出氣體離開第一壓 縮裝置時’该蒸氣冷媒係用於冷卻之,及該液體冷媒係在 進入該蒸發器之纟精著弟一膨服裝置進一步膨脹。 定位在該路徑上且引導進出該快速傳送槽之膨脹閥係用於 將來自南壓之冷媒膨脹至低壓。本發明控制該膨脹閥之作 動,以控制流動進出該快速傳送槽之注液,調節該快速傳 送槽中所儲存之注液。藉著調節該快速傳送槽中所儲存之 注液,可控制該氣體冷卻器中之注液及韓系統之高壓。 藉著控制該閥之作動即可選擇該系統之最佳壓力。假如該 氣體冷卻器中之壓力太低,可調整該膨脹閥以由該快速傳 送槽釋放注液進入該系統,以增加該氣體冷卻器之壓力, 增加該系統之能力。假如該氣體冷卻器中之壓力太高,可 调整該膨服閥以在該快速傳送槽中儲存注液,以降低該氣 -5- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐)
裝 訂
589441 A7 -----B7 五、發明説明(3 ) 體冷卻器之壓力,減少該壓縮機所耗用之能量。 據此,本發明提供一種用以調節過臨界蒸氣壓縮系統之高 壓分量之方法及系統。 本發明之這些及其他特色將由以下之說明書及圖面而有最 佳了解。 屬式簡诫 對於熟諳此技藝者,本發明之各種特色及優點將由當前較 佳具體實施例之以下詳細敘述而變得明顯。該詳細敘述所 附帶之圖式可簡述如下: 圖1說明一先前技藝蒸氣壓縮系統之概要圖。 圖2說明一過臨界蒸氣壓縮系統之熱力學曲線圖。 圖3說明一利用快速傳送槽之先前技藝二階段蒸氣壓縮系 統之概要圖。 圖4說明一過臨界蒸氣壓縮循環之二階段節省循環及不節 省循環之熱力學曲線圖。 圖5說明一利用膨脹閥以控制該系統高壓之二階段蒸氣壓 縮系統之快速傳送槽概要圖。 圖6說明一利用額外閥門以控制該系統高壓之蒸氣壓縮系 統之二階段快速傳送槽概要圖。 具體實施例之詳細敘义 、雖然本發明可能易於接納與在此各圖面中所示及在此將歷 ,者呈不同形式之具體實施例,應理解本發明所揭示之特 定具體實施例將視為其原理之一項範例,且不欲將本發明 限制於在此所示及敘述者。 本纸張尺^^家標準(咖)A4規i^_X297公釐)
589441 A7 B7 五、發明説明(4 圖1說明一先前技藝之蒸氣壓縮系統1 〇。基本之蒸氣塵縮 系統1 0由一壓縮機1 2、一散熱式熱交換器(過臨界循環中之 氣體冷卻器)14、一膨脹裝置16、及一吸熱式熱交換器(蒸 發器)1 8所組成。 冷媒係循環經過該閉路循環系統1 〇。於本發明之一較佳 具體實施例中,二氧化碳係用作該冷媒。雖然以二氧化碳 作說明,可使用其他之冷媒。因為二氧化碳具有一低臨界 點’利用二氧化碳當作冷媒之系統通常要求該蒸氣壓縮系 統10在過臨界下運轉。 當該系統1 0係在過臨界下運轉時,其有利的是調節該蒸 氣壓縮系統1 0之高壓分量。藉著調節該系統i 0之高壓分量 ,可控制及最佳化該系統1 〇之能力及/或效率。增加該氣體 冷卻器14之壓力將降低進入該蒸發器18之熱焓及增加能力 ’而且亦需要更多能量,因為該壓縮機1 2必須更辛苦地工 作。藉著調節該系統1 〇之高壓,可選擇該系統丨〇之最佳壓 力,而當該操作條件改變時即變化該壓力。 於圖1所示先前技藝蒸氣壓縮系統丨〇之一循環中,該冷媒 離開該壓縮機1 2在高壓及高熱焓下,如圖2點A所示。當該 冷媒在高壓下流經該氣體冷卻器丨4時,其損失熱量及熱焓 ’以低熱焓及高壓離開該氣體冷卻器1 4,如點B所示。當該 冷媒通過該膨脹裝置16時,該冷媒之壓力下降,如點c所示 。在膨脹之後,該冷媒通過該蒸發器18及在高熱焓及低壓 下離開,如點D所示。在該冷媒通過該壓縮機丨2之後,其又 位在高壓及高熱焓下,而完成該循環。 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 裝 訂
589441 A7 ____ _B7 五、發明説明(5 ) 圖3說明一於二階段節省循環中利用快速傳送槽2 〇之蒸氣 壓縮系統1 0。離開該氣體冷卻器1 4之冷媒通過第一膨脹裝 置16a,降低其壓力。快速傳送槽2〇中所收集之冷媒係呈部 分液體2 4及部分蒸氣2 2。該快速傳送槽2 〇之結構係已知及 未形成本發明之任一部份。於本發明申請案中,以有創造 力之方式控制該快速傳送槽2 0。吸取在該快速傳送槽2 〇頂 部之蒸氣22及用於冷卻離開該第一壓縮裝置12a之冷媒。在 該快速傳送槽20之底部收集該液體冷媒24,及藉著第二膨 脹·裝置16b在進入該蒸發器18之前再次膨脹。在該冷媒通 過該蒸發器18之後,其係藉著該第一壓縮裝置12a而被壓縮 ’並藉著由該快速傳送槽2〇所排出冷媒之冷蒸氣22冷卻該 排氣。然後在進入該氣體冷卻器14之前再次藉著第二壓縮 裝置12b壓縮該冷媒。藉著使用該快速傳送槽2〇,可減少 該系統之比焓,這增加該系統丨〇之能力。然而,該快速傳 送槽20對該氣體冷卻器14中之高壓不起作用,這將允許對 該系統1 0之高壓有更多控制。 藉著利用多級壓縮,可增加該節省系統1〇之效率,在此 一系統中之高壓及低壓之間有一大差異。如所習知,一管 路2 3使蒸氣2 2通至該壓縮階段1 2 b之吸引部份。這提供冷 卻作用,且係習知為郎省操作。圖4說明一節省循環及一不 節省循環之熱力學曲線圖。節省作用允許遠較多之質量流 經該氣體冷卻器1 4,及減少進入該蒸發器丨8之冷媒之比焓 ’造成該循環具有較大之冷卻能力。 圖5說明一用於調節過臨界循環中之高壓之快速傳送槽“ 本紙張尺度㈣中雨家標準(CNS) A4規格(21GX297公爱) 589441 A7 ____B7 五、發明説明(6 ) 及膨脹閥2 6,2 8。第一膨脹閥2 6調節流入該快速傳送槽2 0 之注液’且第二膨脹閥2 8調節流出該快速傳送槽2 〇之注液 〇 如所習知,經過該第一膨脹閥2 6及該第二膨脹閥2 8之注 液流速係該系統1 0中之壓力及該膨脹閥2 6,2 8中節流孔直 徑之一函數。藉著增加或減少節流孔之尺寸作動該膨脹閥 2 6,2 8。藉著打開或增加該膨脹閥2 6 , 2 8中節流孔之尺寸 ,可增加經過該膨脹閥2 6,2 8之注液流速。對比之下,藉 著封閉或減少該膨脹閥2 6,2 8中節流孔之尺寸,可降低經 過该膨脹閥2 6,2 8之注液流速。藉著控制經過該膨脹閥2 6 ’ 2 8之注液流速’可調節該快速傳送槽2 〇中之注液及該氣 體冷卻器1 4以控制該氣體冷卻器1 4中之壓力。 控制器2 9監視該冷卻器丨4中之壓力及控制膨脹閥2 6及2 8 。該控制器2 9可為循環系統1 〇之主要控制器。程式設計該 控制器2 9以評估該循環1 〇之狀況及決定該冷卻器1 4中想要 之壓力。一旦已決定想要之壓力,控制該閥門2 6及2 8以調 節該壓力。用於決定最佳壓力之因素係在本技藝工作者之 技術範圍内。 假如該氣體冷卻器1 4中之壓力係在該最佳壓力之上,大 量能量係用於壓縮該冷媒。控制器29作動該第二膨脹閥28 以關閉及減少流出該快速傳送槽2 〇之注液之容積流量,增 加該快速傳送槽2 0中之注液,減少該氣體冷卻器丨4中之注 液及壓力兩者。反之,假如該氣體冷卻器14中之壓力係在 該最佳壓力之下,可增加該系統1〇之效率。控制器29關閉 • 9 - 本紙張尺度適用巾關家標準(CNS) Μ規格㈣χ 297公爱) 589441 A7 ___B7 五、發明説明(7 ) 一 " 該罘一膨脹閥2 6以減少流入該快速傳送槽2 〇之注液之容積 流量,增加該氣體冷卻器14中之注液及壓力兩者。 藉著控制器29監視該氣體冷卻器14中之壓力。當該氣體 冷卻器14中之壓力變化時,該控制器29調整該膨脹閥26, 28之作動,以致可達成最佳之壓力。 藉著選擇性控制該第一膨脹閥2 6及該第二膨脹閥2 8之作 動’可變化該快速傳送槽2 〇中所儲存之注液,這將變化該 系統1 0中之高壓分量,以達成最佳之能力及/或效率。藉著 在' 膨脹之前調節該氣體冷卻器1 4中之高壓,可更改該冷媒 在該蒸發器入口之熱焓,控制該系統10之能力及/或效率。 雖然具像化本發明控制器2 9之最簡單方式係關閉閥門2 6 以減少該快速傳送槽2 0中之容量及關閉閥門2 8以增加容量 ’可打開閥門2 6以增加流量及可打開閥門2 8以減少容量。 如圖6所示,亦可使用第三閥門3 〇及第四閥門3 2以變化該 快速傳送槽2 0中注液之水平面,及最佳化該系統丨〇之效率 及/或能力10。該第四閥門32控制由該快速傳送槽2〇流至 該壓縮裝置1 2之注液。藉著關閉該第四閥門3 2,關掉該節 省器及阻斷該快速傳送槽2〇所排出之蒸氣冷媒22進入該壓 縮機12。關閉該第四閥門32將於該快速傳送槽2〇中捕獲該 蒸氣冷媒20。該第三閥門30具有一釋放裝置之作用,且打 開該第三閥門3 〇將允許注液由該快速傳送槽2 0流至該蒸發 器18。藉著打開該第三閥門3〇,允許來自該快速傳送槽2〇 之蒸氣冷媒22進入該蒸發器18,造成該蒸氣22逃離。另一 選擇為,可打開該第四閥門32以打開該節省器。藉著控制 -10- 本紙張尺度㈣τ關冢標準(CNS) M規格(⑽x 297公爱) 589441 A7 ---- B7 五、發明説!Γ 〜 器闕門30及32,可打開及關閉該節省器以最佳化該系統1〇 之效率。亦藉著該控制器2 9控制閥門3 〇,3 2之作動,其監 視該氣體冷卻器14中之壓力。 據此’本發明提供一利用膨脹閥2 6,2 8之快速傳送槽2 0 ’以控制一過臨界蒸氣壓縮系統1 〇中之高壓。 則面之敘述係僅為本發明原理之範例。以上面教導之觀點 ’本發明可能作很多的修正及變化。然而已揭示,本發明 之較佳具體實施例,使得普通熟諳此技藝者將認知某些修 正'將落在本發明之後附之申請專利範圍之内。因此,請暸 解在所附申請專利範圍内,本發明可用異於特別敘述之方 法加以實現。為此緣故,應仔細檢視以下之申請專利以決 定本發明之法定範圍及内容。 元件參考符號表 10 蒸氣壓縮系統(閉路循環系統) 12 壓縮機 12a 第一壓縮裝置 12b 第二壓縮裝置 14 散熱式熱交換器(過臨界循環中之氣體冷卻器) 16 膨脹裝置 16a 第一膨脹裝置 16b 第二膨脹裝置 18 吸熱式熱交換器(蒸發器) -11 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 589441 A7 B7 五、發明説明(9 ) 20 快速傳送槽 2 2 部分蒸氣(蒸氣) 2 3 管路 2 4 部分液體(液體冷媒) 26 第一膨脹閥 28 第二膨脹閥 29 控制器 30 第三閥門 3 2 第四閥門 -12-本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)
Claims (1)
- 589441 A8 B8 C8 ___D8__ 々、申請專利範圍 1 . 一種過臨界蒸氣壓縮系統,其包括: 一雙重壓縮裝置,其具有第一壓縮裝置及第二壓縮裝 置,及一位於該第一壓縮裝置及該第二壓縮裝置間之内 部壓縮階段,該雙重壓縮裝置將一冷媒壓縮至一高壓; 一散熱式熱交換器,其用以冷卻該冷媒; 一雙重膨脹裝置,其具有第一膨脹閥及第二膨脹裝置 ,該雙重膨脹裝置將該冷媒降低至一低壓; 一吸熱式熱交換器,其用以蒸發該冷媒;及 -一快速傳送槽,其用以調節位在該第一膨脹閥及該第 二膨脹閥間之系統的高壓,並具有一引導至該内部壓縮 階段之路徑’該第一膨脹閥調節流入該快速傳送槽之注 液,該第二膨脹閥調節流出該快速傳送槽之注液,作動 該第一膨脹閥及該第二膨脹閥,以藉著調節該快速傳送 槽中之注液調節該高壓。 2 .如申請專利範圍第1項之系統,其中該高壓係藉由作動 該第一膨脹閥及該第二膨脹閥以控制該快速傳送槽中之 注液量,而予以調節。 3 ·如申請專利範圍第1項之系統,其中該注液係儲存於該 快速傳送槽中以降低該冷媒之高壓。 4·如申請專利範圍第!項之系統,其中該注液係由該快速 傳送槽釋放以增加該冷媒之高壓。 5·如申請專利範圍第μ之系統,其中該冷媒係二氧化碳 297公釐) 家標準(^Τ4 規格(210; A8 B8如申請專利範圍第1項之萃結 廿丄 貝义糸統,其中該第一及該第二膨 脹閥係以一監控該高壓之控制器予以作動。 如申請專利範圍第6項之手絲, 于〜无其中孩控制器監控該散熱 式熱交換器内之壓力。 一種過臨界蒸氣壓縮系統,其包括: -雙重壓縮裝置’其具有第一壓縮裝置與第二壓縮裝 置’以及-位於該第-壓縮裝置及該第二壓縮裝置間之 内部壓縮階段,該雙重壓縮裝置將一冷媒壓縮至一高壓 , · f 雙重膨脹裝置,其具有第一膨脹閥與第二膨脹裝置 ,該雙重膨脹裝置將該冷媒降低至一低壓; 一吸熱式熱交換器,其用以蒸發該冷媒; 一快速傳送槽,其用以調節位在該第一膨脹閥及該第 二膨脹閥間之系統的高壓,並具有一引導至該内部壓縮 階段之路徑’該第一膨脹閥調節流入該快速傳送槽之注 液’該第二膨脹閥調節流出該快速傳送槽之注液,該第 一膨脹閥及該第二膨脹閥被作動而調節該快速傳送槽中 之注液量,以調節該高壓; 一第三閥門,定位設置以調節由該快速傳送槽流向 該吸熱式熱交換器之該注液流;及 一第四閥門,定位設置以調節由該快速傳送槽流向 該雙重壓縮裝置之該中間壓縮階段之該注液流,該第三 閥門及該第四閥門係由監控該高壓之控制器所作動。 -2- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐)裝 訂
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EP1207359B1 (en) | 2008-01-09 |
EP1207359A2 (en) | 2002-05-22 |
EP1914492A2 (en) | 2008-04-23 |
EP1207359A3 (en) | 2002-08-28 |
JP2002195673A (ja) | 2002-07-10 |
DE60132287T2 (de) | 2009-01-02 |
ES2296714T3 (es) | 2008-05-01 |
AU766121B2 (en) | 2003-10-09 |
DK1207359T3 (da) | 2008-05-26 |
EP1914492A3 (en) | 2008-10-22 |
JP4053283B2 (ja) | 2008-02-27 |
US6385980B1 (en) | 2002-05-14 |
CN1356519A (zh) | 2002-07-03 |
CN1190636C (zh) | 2005-02-23 |
DE60132287D1 (de) | 2008-02-21 |
AU8940201A (en) | 2002-05-16 |
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