TWI755021B - Integrated thermal cycling system - Google Patents

Integrated thermal cycling system Download PDF

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TWI755021B
TWI755021B TW109127623A TW109127623A TWI755021B TW I755021 B TWI755021 B TW I755021B TW 109127623 A TW109127623 A TW 109127623A TW 109127623 A TW109127623 A TW 109127623A TW I755021 B TWI755021 B TW I755021B
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organic rankine
working fluid
condenser
absorption refrigeration
evaporator
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TW109127623A
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TW202206695A (en
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謝瑞青
吳東凱
葉仲程
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國立勤益科技大學
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Abstract

This present disclosure provides an integrated thermal cycling system including an organic rankine sub-cycle system, an absorption refrigeration sub-cycle system and a cooling sub-cycle system. The organic rankine sub-cycle system includes an organic rankine condenser and a first working fluid. The absorption refrigeration sub-cycle system includes a second working fluid, an absorption refrigeration generator, an absorption refrigeration condenser, an absorption refrigeration evaporator and an absorption refrigeration absorber. The cooling sub-cycle system includes a cooling fluid that flows through the absorption refrigeration evaporator and the organic rankine condenser to form a loop. The cooling fluid flows through the organic rankine condenser and absorbs a thermal energy released by the liquefaction of the first working fluid. The cooling fluid flows through the absorption refrigeration evaporator and provides a part of the thermal energy to vaporize the refrigerant, and then flows back to the organic Rankine condenser. Therefore, the efficiency of the organic rankine sub-cycle system is improved.

Description

複合式熱循環系統Compound Thermal Cycle System

本發明是有關一種熱循環系統,且尤其是有關於一種結合有機朗肯循環及吸收式製冷循環的複合式熱循環系統。The present invention relates to a thermal cycle system, and in particular to a composite thermal cycle system combining organic Rankine cycle and absorption refrigeration cycle.

有機朗肯循環為一種有效回收廢熱源並轉換成電能之技術,其源自於朗肯循環(或稱蒸氣朗肯循環),係利用高溫高壓態的工作流體,經由膨脹閥作功後再冷凝至低溫低壓的液態流體並依此循環運作,且通常以沸點較低的有機化合物作為工作流體。The organic Rankine cycle is a technology that effectively recovers waste heat sources and converts them into electrical energy. It is derived from the Rankine cycle (or vapor Rankine cycle), which uses the working fluid in a high temperature and high pressure state to work through an expansion valve and then condense it. Liquid fluids to low temperature and low pressure and circulate accordingly, and usually use organic compounds with lower boiling points as working fluids.

隨著環保意識抬頭,有機流體對環境的影響亦備受重視,部分可產生較高效率之冷媒例如R123、R134a等因而被禁止使用,而需另外尋找提升效率之方法。With the rise of environmental awareness, the impact of organic fluids on the environment has also been paid more attention. Some refrigerants that can produce higher efficiency, such as R123, R134a, etc., are therefore prohibited from being used, and it is necessary to find another way to improve efficiency.

有鑑於此,如何更進一步提升有機朗肯循環系統的熱效率,遂成為相關業者努力的目標。In view of this, how to further improve the thermal efficiency of the organic Rankine cycle system has become the goal of the relevant industry.

依據本發明之一實施方式提供一種複合式熱循環系統,其包含一有機朗肯次循環系統、一吸收式製冷次循環系統以及一冷卻次循環系統。有機朗肯次循環系統包含一有機朗肯冷凝器及一第一工作流體,第一工作流體流經有機朗肯冷凝器,並放出一熱能予有機朗肯冷凝器以進行液化。吸收式製冷次循環系統包含一第二工作流體、一吸收式製冷發生器、一吸收式製冷冷凝器、一吸收式製冷蒸發器及一吸收式製冷吸收器,第二工作流體包含一製冷劑及一吸收劑,吸收式製冷發生器加熱第二工作流體以汽化製冷劑,吸收式製冷冷凝器用以使汽化後之製冷劑降溫液化,吸收式製冷蒸發器加熱使降溫液化並經降壓後之製冷劑再度汽化,吸收式製冷吸收器連接吸收式製冷蒸發器,且用以使製冷劑及吸收劑結合再度成為第二工作流體。冷卻次循環系統包含一冷卻流體,冷卻流體流經吸收式製冷蒸發器及有機朗肯冷凝器以形成迴路,其中,冷卻流體流經有機朗肯冷凝器並吸收第一工作流體液化所放出之熱能,冷卻流體流經吸收式製冷蒸發器,並提供熱能中至少一部分使製冷劑汽化後,冷卻流體再流回有機朗肯冷凝器。According to an embodiment of the present invention, a compound thermal cycle system is provided, which includes an organic Rankine sub-cycle system, an absorption refrigeration sub-cycle system, and a cooling sub-cycle system. The organic Rankine sub-circulation system includes an organic Rankine condenser and a first working fluid. The first working fluid flows through the organic Rankine condenser and releases a heat energy to the organic Rankine condenser for liquefaction. The absorption refrigeration sub-circulation system includes a second working fluid, an absorption refrigeration generator, an absorption refrigeration condenser, an absorption refrigeration evaporator and an absorption refrigeration absorber, and the second working fluid includes a refrigerant and An absorbent, the absorption refrigerating generator heats the second working fluid to vaporize the refrigerant, the absorption refrigerating condenser is used to cool down and liquefy the vaporized refrigerant, and the absorption refrigerating evaporator heats to cool down and liquefy the refrigerant after depressurization The refrigerant is re-vaporized, and the absorption refrigeration absorber is connected to the absorption refrigeration evaporator, and is used to combine the refrigerant and the absorbent to become the second working fluid again. The cooling secondary circulation system includes a cooling fluid, and the cooling fluid flows through the absorption refrigeration evaporator and the organic Rankine condenser to form a loop, wherein the cooling fluid flows through the organic Rankine condenser and absorbs the heat energy released by the liquefaction of the first working fluid , the cooling fluid flows through the absorption refrigeration evaporator, and after providing at least a part of the thermal energy to vaporize the refrigerant, the cooling fluid flows back to the organic Rankine condenser.

藉此,冷卻流體自有機朗肯次循環系統取得熱能,將熱能給吸收式製冷次循環系統後使自身降至室溫以下,再回到有機朗肯次循環系統,使第一工作流體進一步降低冷凝溫度,而可有效提升有機朗肯次循環系統的熱效率及發電量。In this way, the cooling fluid obtains thermal energy from the organic Rankine sub-circulation system, reduces the heat energy to the absorption refrigeration sub-circulation system to reduce itself to below room temperature, and then returns to the organic Rankine sub-circulation system to further reduce the first working fluid. The condensing temperature can effectively improve the thermal efficiency and power generation of the organic Rankine cycle system.

依據前述實施方式之複合式熱循環系統,其中有機朗肯次循環系統更包含一有機朗肯蒸發器、一有機朗肯泵浦以及一有機朗肯膨脹器。有機朗肯蒸發器使液化後之第一工作流體高壓汽化,有機朗肯泵浦將經過有機朗肯冷凝器之第一工作流體送至有機朗肯蒸發器,有機朗肯膨脹器接收高壓汽化後之第一工作流體,以使高壓汽化後之第一工作流體降壓,同時有機朗肯膨脹器被驅動以產生一旋轉軸功。其中,有機朗肯冷凝器接收降壓後之第一工作流體,使其放出熱能,且第一工作流體流經有機朗肯冷凝器、有機朗肯泵浦、有機朗肯蒸發器及有機朗肯膨脹器以形成迴路。According to the compound thermal cycle system of the foregoing embodiment, the organic Rankine sub-cycle system further comprises an organic Rankine evaporator, an organic Rankine pump and an organic Rankine expander. The organic Rankine evaporator vaporizes the first working fluid after liquefaction at high pressure, and the organic Rankine pump sends the first working fluid through the organic Rankine condenser to the organic Rankine evaporator, and the organic Rankine expander receives the high pressure vaporization. The first working fluid is used to depressurize the first working fluid after high-pressure vaporization, and at the same time, the organic Rankine expander is driven to generate a rotating shaft work. The organic Rankine condenser receives the depressurized first working fluid to release heat energy, and the first working fluid flows through the organic Rankine condenser, the organic Rankine pump, the organic Rankine evaporator and the organic Rankine expander to form a circuit.

依據前述實施方式之複合式熱循環系統,其中有機朗肯次循環系統更包含一復熱器,其包含一第一高溫部及一第一低溫部,第一工作流體流經有機朗肯膨脹器降壓後,經過第一高溫部被吸收一餘熱,第一低溫部將餘熱提供給流入有機朗肯蒸發器前之第一工作流體進行預熱。According to the compound thermal cycle system of the foregoing embodiment, the organic Rankine sub-cycle system further includes a recuperator, which includes a first high temperature part and a first low temperature part, and the first working fluid flows through the organic Rankine expander After depressurization, a waste heat is absorbed by the first high temperature part, and the first low temperature part provides the waste heat to the first working fluid before flowing into the organic Rankine evaporator for preheating.

依據前述實施方式之複合式熱循環系統,其更包含一熱源,其先流經有機朗肯蒸發器後,再流經吸收式製冷發生器。The composite thermal cycle system according to the foregoing embodiment further includes a heat source, which first flows through the organic Rankine evaporator, and then flows through the absorption refrigeration generator.

依據前述實施方式之複合式熱循環系統,其中冷卻次循環系統更包含一冷卻水塔及一冷卻泵浦,冷卻流體流經有機朗肯冷凝器後,流經冷卻水塔,再流經冷卻泵浦以送至吸收式製冷蒸發器,最後再回到有機朗肯冷凝器。According to the composite thermal cycle system of the aforementioned embodiment, the cooling secondary cycle system further comprises a cooling water tower and a cooling pump. After the cooling fluid flows through the organic Rankine condenser, it flows through the cooling water tower, and then flows through the cooling pump to It is sent to the absorption refrigeration evaporator and finally returned to the organic Rankine condenser.

依據本發明另一實施方式之一種複合式熱循環系統,其包含一有機朗肯次循環系統、一吸收式製冷次循環系統、一冷卻次循環系統以及至少一複合式復熱器。有機朗肯次循環系統包含一有機朗肯冷凝器及一第一工作流體,第一工作流體流經有機朗肯冷凝器,並放出一熱能予有機朗肯冷凝器以進行液化。吸收式製冷次循環系統包含一第二工作流體、一吸收式製冷發生器、一吸收式製冷冷凝器、一吸收式製冷蒸發器及一吸收式製冷吸收器,第二工作流體包含一製冷劑及一吸收劑,吸收式製冷發生器加熱第二工作流體以汽化製冷劑,吸收式製冷冷凝器用以使汽化後之製冷劑降溫液化,吸收式製冷蒸發器加熱使降溫液化並經降壓後之製冷劑再度汽化,吸收式製冷吸收器連接吸收式製冷蒸發器,且用以使製冷劑及吸收劑結合再度成為第二工作流體。冷卻次循環系統包含一冷卻流體,冷卻流體流經吸收式製冷蒸發器及有機朗肯冷凝器以形成迴路。前述至少一複合式復熱器,以第一工作流體預熱第二工作流體,或是以第二工作流體預熱第一工作流體。其中,冷卻流體流經有機朗肯冷凝器並吸收第一工作流體液化所放出之熱能,冷卻流體流經吸收式製冷蒸發器,並提供熱能中至少一部分使製冷劑汽化後,冷卻流體再流回有機朗肯冷凝器。According to another embodiment of the present invention, a composite thermal cycle system includes an organic Rankine sub-cycle system, an absorption refrigeration sub-cycle system, a cooling sub-cycle system, and at least one composite recuperator. The organic Rankine sub-circulation system includes an organic Rankine condenser and a first working fluid. The first working fluid flows through the organic Rankine condenser and releases a heat energy to the organic Rankine condenser for liquefaction. The absorption refrigeration sub-circulation system includes a second working fluid, an absorption refrigeration generator, an absorption refrigeration condenser, an absorption refrigeration evaporator and an absorption refrigeration absorber, and the second working fluid includes a refrigerant and An absorbent, the absorption refrigerating generator heats the second working fluid to vaporize the refrigerant, the absorption refrigerating condenser is used to cool down and liquefy the vaporized refrigerant, and the absorption refrigerating evaporator heats to cool down and liquefy the refrigerant after depressurization The refrigerant is re-vaporized, and the absorption refrigeration absorber is connected to the absorption refrigeration evaporator, and is used to combine the refrigerant and the absorbent to become the second working fluid again. The cooling secondary circulation system includes a cooling fluid, and the cooling fluid flows through the absorption refrigeration evaporator and the organic Rankine condenser to form a circuit. The aforementioned at least one compound recuperator preheats the second working fluid with the first working fluid, or preheats the first working fluid with the second working fluid. The cooling fluid flows through the organic Rankine condenser and absorbs the heat energy released by the liquefaction of the first working fluid, and the cooling fluid flows through the absorption refrigeration evaporator and provides at least a part of the heat energy to vaporize the refrigerant, and then the cooling fluid flows back to Organic Rankine Condenser.

依據前述第二實施方式之複合式熱循環系統,其中有機朗肯次循環系統更包含一有機朗肯蒸發器、一有機朗肯泵浦以及一有機朗肯膨脹器。有機朗肯蒸發器使液化後之第一工作流體高壓汽化。有機朗肯泵浦將經過有機朗肯冷凝器之第一工作流體送至有機朗肯蒸發器。有機朗肯膨脹器接收高壓汽化後之第一工作流體,以使高壓汽化後之第一工作流體降壓,同時有機朗肯膨脹器被驅動以產生一旋轉軸功。其中,有機朗肯冷凝器接收降壓後之第一工作流體,使其放出熱能,且第一工作流體流經有機朗肯泵浦、有機朗肯蒸發器、有機朗肯膨脹器及有機朗肯冷凝器以形成迴路。According to the compound thermal cycle system of the second embodiment, the organic Rankine sub-cycle system further comprises an organic Rankine evaporator, an organic Rankine pump and an organic Rankine expander. The organic Rankine evaporator vaporizes the liquefied first working fluid under high pressure. The organic Rankine pump sends the first working fluid passing through the organic Rankine condenser to the organic Rankine evaporator. The organic Rankine expander receives the high-pressure vaporized first working fluid to depressurize the high-pressure vaporized first working fluid, while the organic Rankine expander is driven to generate a rotating shaft work. The organic Rankine condenser receives the depressurized first working fluid to release heat energy, and the first working fluid flows through the organic Rankine pump, the organic Rankine evaporator, the organic Rankine expander and the organic Rankine condenser to form a loop.

依據前述第二實施方式之複合式熱循環系統,其中至少一複合式復熱器的數量為二,其中一複合式復熱器吸收第一工作流體流經有機朗肯膨脹器後所放出之一第一釋放熱,並預熱流入吸收式製冷發生器前之重新混合之第二工作流體;另一複合式復熱器吸收流經吸收式製冷發生器後汽化之製冷劑所放出之一第二釋放熱,並預熱流入有機朗肯蒸發器前之第一工作流體。According to the compound thermal cycle system according to the second embodiment, the number of at least one compound recuperator is two, and one compound recuperator absorbs one of the first working fluids discharged after flowing through the organic Rankine expander The first releases heat and preheats the remixed second working fluid before flowing into the absorption refrigeration generator; the other compound recuperator absorbs a second working fluid released by the vaporized refrigerant flowing through the absorption refrigeration generator. Heat is released and the first working fluid is preheated before flowing into the organic Rankine evaporator.

請參照第1圖,其中,第1圖繪示依照本發明一第一實施例之一種複合式熱循環系統10之方塊圖。由第1圖可知,複合式熱循環系統10包含一有機朗肯次循環系統100、一吸收式製冷次循環系統200及一冷卻次循環系統300。有機朗肯次循環系統100包含一有機朗肯冷凝器110及一第一工作流體120,第一工作流體120流經有機朗肯冷凝器110,並放出一熱能(未繪示)予有機朗肯冷凝器110以進行液化。吸收式製冷次循環系統200包含一第二工作流體210、一吸收式製冷發生器220、一吸收式製冷冷凝器230、一吸收式製冷蒸發器240及一吸收式製冷吸收器290,第二工作流體210包含一製冷劑211及一吸收劑212,吸收式製冷發生器220加熱第二工作流體210以使製冷劑211汽化而與吸收劑212分離,吸收式製冷冷凝器230用以使汽化後之製冷劑211降溫液化,經吸收膨脹閥260降壓後之製冷劑211於吸收式製冷蒸發器240吸收外部熱源而汽化,吸收式製冷吸收器290連接吸收式製冷蒸發器240,用以使製冷劑211及吸收劑212結合並再度成為濃度較高之第二工作流體210。冷卻次循環系統300包含一冷卻流體310,冷卻流體310流經吸收式製冷蒸發器240及有機朗肯冷凝器110以形成迴路,其中,冷卻流體310流經有機朗肯冷凝器110並吸收第一工作流體120液化所放出之熱能,接著冷卻流體310可先流經冷卻水塔320將一部分的熱能散出以降至環境溫度左右,再流經吸收式製冷蒸發器240,並提供熱能中至少一部分使製冷劑211汽化後,冷卻流體310再流回有機朗肯冷凝器110。Please refer to FIG. 1, wherein FIG. 1 shows a block diagram of a compound thermal cycle system 10 according to a first embodiment of the present invention. As can be seen from FIG. 1 , the composite thermal cycle system 10 includes an organic Rankine sub-cycle system 100 , an absorption refrigeration sub-cycle system 200 and a cooling sub-cycle system 300 . The organic Rankine sub-cycle system 100 includes an organic Rankine condenser 110 and a first working fluid 120. The first working fluid 120 flows through the organic Rankine condenser 110 and releases a thermal energy (not shown) to the organic Rankine Condenser 110 for liquefaction. The absorption refrigeration secondary cycle system 200 includes a second working fluid 210, an absorption refrigeration generator 220, an absorption refrigeration condenser 230, an absorption refrigeration evaporator 240 and an absorption refrigeration absorber 290. The second working fluid The fluid 210 includes a refrigerant 211 and an absorbent 212. The absorption refrigeration generator 220 heats the second working fluid 210 to vaporize the refrigerant 211 and separate it from the absorbent 212. The absorption refrigeration condenser 230 is used to make the vaporized The refrigerant 211 is cooled and liquefied, and the refrigerant 211 after being depressurized by the absorption expansion valve 260 absorbs the external heat source and evaporates in the absorption refrigeration evaporator 240. The absorption refrigeration absorber 290 is connected to the absorption refrigeration evaporator 240 to make the refrigerant 211 and the absorbent 212 combine and become the second working fluid 210 with a higher concentration again. The cooling secondary circulation system 300 includes a cooling fluid 310, the cooling fluid 310 flows through the absorption refrigeration evaporator 240 and the organic Rankine condenser 110 to form a loop, wherein the cooling fluid 310 flows through the organic Rankine condenser 110 and absorbs the first The heat energy released by the liquefaction of the working fluid 120, and then the cooling fluid 310 can first flow through the cooling water tower 320 to dissipate a part of the heat energy to reduce to about the ambient temperature, and then flow through the absorption refrigeration evaporator 240, and provide at least a part of the heat energy for refrigeration After the agent 211 is vaporized, the cooling fluid 310 flows back to the organic Rankine condenser 110 .

藉此,冷卻流體310自有機朗肯次循環系統100取得熱能,將熱能給吸收式製冷次循環系統200後使自身降至室溫以下,再回到有機朗肯次循環系統100,使第一工作流體120進一步降低冷凝溫度,而可有效提升有機朗肯次循環系統100的熱效率及發電量。In this way, the cooling fluid 310 obtains thermal energy from the organic Rankine sub-cycle system 100, and the heat energy is absorbed by the refrigeration sub-cycle system 200 to reduce itself to below room temperature, and then returns to the organic Rankine sub-cycle system 100, so that the first The working fluid 120 further reduces the condensation temperature, which can effectively improve the thermal efficiency and power generation of the organic Rankine cycle system 100 .

仔細而言,有機朗肯次循環系統100更包含一有機朗肯蒸發器140、一有機朗肯泵浦130以及一有機朗肯膨脹器150。第一工作流體120流經有機朗肯冷凝器110液化後,由有機朗肯泵浦130以例如是加壓方式送至有機朗肯蒸發器140,接著,有機朗肯蒸發器140使液化後之第一工作流體120高壓汽化,高壓汽化後之第一工作流體120進入有機朗肯膨脹器150開始膨脹降壓並產生一旋轉軸功,旋轉軸功透過連結器帶動有機朗肯發電機160發電。其中,有機朗肯冷凝器110接收降壓後(即經過有機朗肯膨脹器150)之第一工作流體120,使其放出熱能。換句話說,第一工作流體120可流經有機朗肯冷凝器110、有機朗肯泵浦130、有機朗肯蒸發器140及有機朗肯膨脹器150以形成迴路。有機朗肯發電機160係連接於有機朗肯膨脹器150,第一工作流體120可推動有機朗肯膨脹器150例如:渦卷、單螺桿、雙螺桿及渦輪等旋轉元件以產生旋轉軸功,進而透過有機朗肯發電機160將旋轉軸功轉換成電能。第一工作流體120可為純冷媒,例如R123、R134a、R245fa、R1234yf或混合冷媒,混合冷媒例如為R245fa/R134a混合流體或R245fa/R1234yf混合流體,然本發明不以此為限。Specifically, the organic Rankine sub-cycle system 100 further includes an organic Rankine evaporator 140 , an organic Rankine pump 130 and an organic Rankine expander 150 . After the first working fluid 120 flows through the organic Rankine condenser 110 to be liquefied, it is sent to the organic Rankine evaporator 140 by the organic Rankine pump 130 in a pressurized manner. The first working fluid 120 is vaporized at high pressure. After the high-pressure vaporization, the first working fluid 120 enters the organic Rankine expander 150 to expand and depressurize and generate a rotating shaft work. The rotating shaft work drives the organic Rankine generator 160 to generate electricity through the connector. The organic Rankine condenser 110 receives the depressurized first working fluid 120 (ie, passes through the organic Rankine expander 150 ) to release heat energy. In other words, the first working fluid 120 may flow through the organic Rankine condenser 110 , the organic Rankine pump 130 , the organic Rankine evaporator 140 and the organic Rankine expander 150 to form a loop. The organic Rankine generator 160 is connected to the organic Rankine expander 150, and the first working fluid 120 can push the organic Rankine expander 150 such as: scroll, single screw, twin screw and turbine and other rotating elements to generate rotating shaft work, Further, the rotating shaft work is converted into electrical energy through the organic Rankine generator 160 . The first working fluid 120 can be pure refrigerant, such as R123, R134a, R245fa, R1234yf or mixed refrigerant, such as R245fa/R134a mixed fluid or R245fa/R1234yf mixed fluid, but the present invention is not limited thereto.

吸收式製冷次循環系統200可更包含一吸收減壓閥280、吸收膨脹閥260、一吸收式製冷熱交換器270以及一吸收式製冷泵浦250。製冷劑211與吸收劑212分別具有不同沸點(製冷劑211的沸點較吸收劑212低)並充分混合,混合流體之組成可例如為氨加水或是水加溴化鋰等,當吸收式製冷發生器220使製冷劑211汽化分離後,吸收劑212流入吸收減壓閥280,且吸收減壓閥280使吸收劑212降壓。吸收式製冷吸收器290將經過吸收式製冷蒸發器240之製冷劑211及經過吸收減壓閥280之吸收劑212重新混合成濃度較高之第二工作流體210。吸收式製冷熱交換器270包含一第二高溫部271及一第二低溫部272,透過吸收式製冷熱交換器270的第二高溫部271吸收未經吸收減壓閥280降壓之吸收劑212的一廢熱(未繪示),第二低溫部272在重新混合之第二工作流體210流入吸收式製冷發生器220前,提供廢熱以預熱重新混合之第二工作流體210。吸收式製冷泵浦250將重新混合之第二工作流體210送至吸收式製冷發生器220。其中,經過吸收式製冷冷凝器230後之製冷劑211流經吸收式製冷蒸發器240以進行汽化(吸收來自冷卻流體310的熱能並使冷卻流體310降溫),且製冷劑211流經吸收式製冷發生器220、吸收式製冷冷凝器230、吸收式製冷蒸發器240、吸收式製冷吸收器290及吸收式製冷泵浦250以形成迴路。The absorption refrigeration secondary cycle system 200 may further include an absorption decompression valve 280 , an absorption expansion valve 260 , an absorption refrigeration heat exchanger 270 and an absorption refrigeration pump 250 . The refrigerant 211 and the absorbent 212 have different boiling points respectively (the boiling point of the refrigerant 211 is lower than that of the absorbent 212) and are fully mixed. The composition of the mixed fluid can be, for example, ammonia plus water or water plus lithium bromide. After the refrigerant 211 is vaporized and separated, the absorbent 212 flows into the absorption decompression valve 280 , and the absorption decompression valve 280 depressurizes the absorbent 212 . The absorption refrigeration absorber 290 remixes the refrigerant 211 passing through the absorption refrigeration evaporator 240 and the absorbent 212 passing through the absorption decompression valve 280 into a second working fluid 210 with a higher concentration. The absorption refrigeration heat exchanger 270 includes a second high temperature part 271 and a second low temperature part 272, and the absorbent 212 that has not been depressurized by the absorption pressure reducing valve 280 is absorbed through the second high temperature part 271 of the absorption refrigeration heat exchanger 270 The second low temperature portion 272 provides waste heat to preheat the remixed second working fluid 210 before the remixed second working fluid 210 flows into the absorption refrigeration generator 220 . The absorption refrigeration pump 250 sends the remixed second working fluid 210 to the absorption refrigeration generator 220 . The refrigerant 211 after passing through the absorption refrigeration condenser 230 flows through the absorption refrigeration evaporator 240 for vaporization (absorbing heat energy from the cooling fluid 310 and cooling the cooling fluid 310), and the refrigerant 211 flows through the absorption refrigeration The generator 220, the absorption refrigeration condenser 230, the absorption refrigeration evaporator 240, the absorption refrigeration absorber 290 and the absorption refrigeration pump 250 form a circuit.

冷卻次循環系統300更包含一冷卻水塔320及一冷卻泵浦330,冷卻流體310流經有機朗肯冷凝器110並吸收第一工作流體120液化所放出之熱能後,流經冷卻水塔320進行初步冷卻以釋放一部分的熱能,使其降溫至接近環境溫度後,再流經冷卻泵浦330以送至吸收式製冷蒸發器240,並將熱能之一部分傳遞給製冷劑211以使製冷劑211汽化,並將冷卻流體310進一步降溫(低於環境溫度),最後再回到有機朗肯冷凝器110以完成循環。The cooling secondary circulation system 300 further includes a cooling water tower 320 and a cooling pump 330. The cooling fluid 310 flows through the organic Rankine condenser 110 and absorbs the heat energy released by the liquefaction of the first working fluid 120, and then flows through the cooling water tower 320 for preliminary operation. After cooling to release a part of the heat energy, it is cooled to a temperature close to the ambient temperature, and then flows through the cooling pump 330 to be sent to the absorption refrigeration evaporator 240, and part of the heat energy is transferred to the refrigerant 211 to vaporize the refrigerant 211, The cooling fluid 310 is further cooled (below ambient temperature) and finally returned to the organic Rankine condenser 110 to complete the cycle.

依據前述實施方式之複合式熱循環系統10,其更包含一熱源400,先流經有機朗肯蒸發器140,提供一高溫熱能(未繪示)予有機朗肯蒸發器140並使第一工作流體120汽化,再流經吸收式製冷發生器220,將高溫熱能之剩餘部分提供給吸收式製冷發生器220,其剛好足以使第二工作流體210中沸點較低的製冷劑211汽化,而與沸點較高之吸收劑212分離。The composite thermal cycle system 10 according to the foregoing embodiment further includes a heat source 400 that first flows through the organic Rankine evaporator 140 to provide a high-temperature heat energy (not shown) to the organic Rankine evaporator 140 to make the first heat source 400 . A working fluid 120 is vaporized and then flows through the absorption refrigeration generator 220 to provide the remaining part of the high temperature heat energy to the absorption refrigeration generator 220, which is just enough to make the refrigerant 211 with a lower boiling point in the second working fluid 210 Vaporized and separated from the higher boiling absorbent 212.

請參閱第2圖,其中第2圖繪示依照本發明一第二實施例之一種複合式熱循環系統10a之方塊圖。複合式熱循環系統10a的配置與第1圖之複合式熱循環系統10類似,包含一有機朗肯次循環系統100a、一吸收式製冷次循環系統200a及一冷卻次循環系統300a。有機朗肯次循環系統100a與第1圖的有機朗肯次循環系統100類似,包含第一工作流體120a、有機朗肯冷凝器110a、有機朗肯泵浦130a、有機朗肯蒸發器140a及有機朗肯膨脹器150a;吸收式製冷次循環系統200a與第1圖的吸收式製冷次循環系統200類似,包含第二工作流體210a、吸收式製冷發生器220a、吸收式製冷冷凝器230a、吸收膨脹閥260a、吸收式製冷蒸發器240a、吸收式製冷吸收器290a、吸收減壓閥280a、吸收式製冷泵浦250a及吸收式製冷熱交換器270a,第二工作流體210a則同樣包含製冷劑211a及吸收劑212a;冷卻次循環系統300a與第1圖的冷卻次循環系統300類似,包含冷卻流體310a、冷卻水塔320a及冷卻泵浦330a。差異在於,有機朗肯次循環系統100a更包含一復熱器170a,其包含一第一高溫部171a及一第一低溫部172a,高壓汽化之第一工作流體120a流經有機朗肯膨脹器150a降壓(同時伴隨降溫效果)後,再經過第一高溫部171a並被吸收一餘熱(未繪示),如此可使第一工作流體120a先進行一定程度的降溫再流入有機朗肯冷凝器110a;餘熱可透過第一低溫部172a提供給流入有機朗肯蒸發器140a前之第一工作流體120a,以對第一工作流體120a進行預熱。Please refer to FIG. 2, wherein FIG. 2 is a block diagram of a compound thermal cycle system 10a according to a second embodiment of the present invention. The configuration of the composite thermal cycle system 10a is similar to that of the composite thermal cycle system 10 in FIG. 1, including an organic Rankine sub-cycle system 100a, an absorption refrigeration sub-cycle system 200a and a cooling sub-cycle system 300a. The organic Rankine sub-cycle system 100a is similar to the organic Rankine sub-cycle system 100 in FIG. 1, and includes a first working fluid 120a, an organic Rankine condenser 110a, an organic Rankine pump 130a, an organic Rankine evaporator 140a and an organic Rankine expander 150a; absorption refrigeration sub-cycle system 200a is similar to absorption refrigeration sub-cycle system 200 in FIG. 1, including second working fluid 210a, absorption refrigeration generator 220a, absorption refrigeration condenser 230a, absorption expansion Valve 260a, absorption refrigeration evaporator 240a, absorption refrigeration absorber 290a, absorption pressure reducing valve 280a, absorption refrigeration pump 250a and absorption refrigeration heat exchanger 270a, the second working fluid 210a also includes refrigerant 211a and The absorbent 212a; the cooling sub-circulation system 300a is similar to the cooling sub-circulation system 300 in FIG. 1, and includes a cooling fluid 310a, a cooling water tower 320a and a cooling pump 330a. The difference is that the organic Rankine sub-cycle system 100a further includes a recuperator 170a, which includes a first high temperature portion 171a and a first low temperature portion 172a, and the first working fluid 120a vaporized at high pressure flows through the organic Rankine expander 150a After depressurization (at the same time accompanied by a cooling effect), it passes through the first high temperature portion 171a and absorbs a waste heat (not shown), so that the first working fluid 120a can be cooled to a certain degree before flowing into the organic Rankine condenser 110a The waste heat can be provided to the first working fluid 120a before flowing into the organic Rankine evaporator 140a through the first low temperature portion 172a, so as to preheat the first working fluid 120a.

請參照第3圖,其中第3圖繪示依照本發明一第三實施例之一種複合式熱循環系統10b之方塊圖。複合式熱循環系統10b的配置與第1圖之複合式熱循環系統10類似,包含一有機朗肯次循環系統100b、一吸收式製冷次循環系統200b及一冷卻次循環系統300b。有機朗肯次循環系統100b與第1圖的有機朗肯次循環系統100類似,包含第一工作流體120b、有機朗肯冷凝器110b、有機朗肯泵浦130b、有機朗肯蒸發器140b及有機朗肯膨脹器150b;吸收式製冷次循環系統200b與第1圖的吸收式製冷次循環系統200類似,包含第二工作流體210b、吸收式製冷發生器220b、吸收式製冷冷凝器230b、吸收膨脹閥260b、吸收式製冷蒸發器240b、吸收式製冷吸收器290b、吸收減壓閥280b、吸收式製冷泵浦250b及吸收式製冷熱交換器270b,第二工作流體210b則同樣包含製冷劑211b及吸收劑212b;冷卻次循環系統300b與第1圖的冷卻次循環系統300類似,包含冷卻流體310b、冷卻水塔320b及冷卻泵浦330b。但複合式熱循環系統10b更包含至少一複合式復熱器510b、520b。至少一複合式復熱器510b、520b以第一工作流體120b預熱第二工作流體210b,或以第二工作流體210b預熱第一工作流體120b,而能讓熱能的運用更有效率。Please refer to FIG. 3, wherein FIG. 3 is a block diagram of a compound thermal cycle system 10b according to a third embodiment of the present invention. The configuration of the composite thermal cycle system 10b is similar to that of the composite thermal cycle system 10 in FIG. 1, including an organic Rankine sub-cycle system 100b, an absorption refrigeration sub-cycle system 200b and a cooling sub-cycle system 300b. The organic Rankine sub-cycle system 100b is similar to the organic Rankine sub-cycle system 100 in FIG. 1, and includes a first working fluid 120b, an organic Rankine condenser 110b, an organic Rankine pump 130b, an organic Rankine evaporator 140b and an organic Rankine sub-cycle system 100b. Rankine expander 150b; absorption refrigeration sub-cycle system 200b is similar to absorption refrigeration sub-cycle system 200 in FIG. 1, including second working fluid 210b, absorption refrigeration generator 220b, absorption refrigeration condenser 230b, absorption expansion valve 260b, absorption refrigeration evaporator 240b, absorption refrigeration absorber 290b, absorption pressure reducing valve 280b, absorption refrigeration pump 250b and absorption refrigeration heat exchanger 270b, the second working fluid 210b also includes refrigerant 211b and The absorbent 212b; the cooling sub-circulation system 300b is similar to the cooling sub-circulation system 300 in FIG. 1, and includes a cooling fluid 310b, a cooling water tower 320b and a cooling pump 330b. However, the compound thermal cycle system 10b further includes at least one compound recuperator 510b and 520b. At least one compound recuperator 510b, 520b preheats the second working fluid 210b with the first working fluid 120b, or preheats the first working fluid 120b with the second working fluid 210b, so that the use of thermal energy can be more efficient.

在第三實施例中,複合式復熱器510b、520b的數量可為二,複合式復熱器510b吸收第一工作流體120b流經有機朗肯膨脹器150b後所放出之一第一釋放熱(未繪示),並預熱流入吸收式製冷發生器220b前之重新混合之第二工作流體210b,而能以第一工作流體120b預熱第二工作流體210b;另一複合式復熱器520b吸收流經吸收式製冷發生器220b後汽化之製冷劑211b所放出之一第二釋放熱(未繪示),並預熱流入有機朗肯蒸發器140b前之第一工作流體120b,而能以第二工作流體210b預熱第一工作流體120b。複合式復熱器510b、520b藉有機朗肯次循環系統100b及吸收式製冷次循環系統200b之間的溫度差以進行熱交換,可依實際需求配置於複合式熱循環系統10b中任何能有效提升系統熱效率的位置,並不以此限制本發明。In the third embodiment, the number of the compound recuperators 510b and 520b may be two, and the compound recuperator 510b absorbs one of the first heat released after the first working fluid 120b flows through the organic Rankine expander 150b (not shown), and preheat the remixed second working fluid 210b before flowing into the absorption refrigeration generator 220b, so that the second working fluid 210b can be preheated with the first working fluid 120b; another compound recuperator 520b absorbs a second release heat (not shown) released by the vaporized refrigerant 211b flowing through the absorption refrigeration generator 220b, and preheats the first working fluid 120b before flowing into the organic Rankine evaporator 140b, so as to be able to The first working fluid 120b is preheated with the second working fluid 210b. The compound recuperators 510b and 520b utilize the temperature difference between the organic Rankine sub-cycle system 100b and the absorption refrigeration sub-cycle system 200b to perform heat exchange, and can be configured in the compound heat cycle system 10b according to actual needs in any effective The position of improving the thermal efficiency of the system does not limit the present invention.

雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何熟習此技藝者,在不脫離本發明之精神和範圍內,當可作各種之更動與潤飾,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be determined by the scope of the appended patent application.

10,10a,10b:複合式熱循環系統 100,100a,100b:有機朗肯次循環系統 110,110a,110b:有機朗肯冷凝器 120,120a,120b:第一工作流體 130,130a,130b:有機朗肯泵浦 140,140a,140b:有機朗肯蒸發器 150,150a,150b:有機朗肯膨脹器 160:有機朗肯發電機 170a:復熱器 171a:第一高溫部 172a:第一低溫部 200,200a,200b:吸收式製冷次循環系統 210,210a,210b:第二工作流體 211,211a,211b:製冷劑 212,212a,212b:吸收劑 220,220a,220b:吸收式製冷發生器 230,230a,230b:吸收式製冷冷凝器 240,240a,240b:吸收式製冷蒸發器 250,250a,250b:吸收式製冷泵浦 260,260a,260b:吸收膨脹閥 270,270a,270b:吸收式製冷熱交換器 271:第二高溫部 272:第二低溫部 280,280a,280b:吸收減壓閥 290,290a,290b:吸收式製冷吸收器 300,300a,300b:冷卻次循環系統 310,310a,310b:冷卻流體 320,320a,320b:冷卻水塔 330,330a,330b:冷卻泵浦 400:熱源 510b,520b:複合式復熱器 10, 10a, 10b: Compound Thermal Cycle System 100, 100a, 100b: Organic Rankine Cycle System 110, 110a, 110b: Organic Rankine Condensers 120, 120a, 120b: the first working fluid 130, 130a, 130b: Organic Rankine Pumping 140, 140a, 140b: Organic Rankine Evaporators 150, 150a, 150b: Organic Rankine Expanders 160: Organic Rankine Generator 170a: Recuperator 171a: First high temperature section 172a: First Cryogenic Section 200, 200a, 200b: Absorption refrigeration secondary cycle system 210, 210a, 210b: Second working fluid 211, 211a, 211b: Refrigerants 212, 212a, 212b: Absorbents 220, 220a, 220b: Absorption Refrigeration Generators 230, 230a, 230b: Absorption refrigeration condensers 240, 240a, 240b: Absorption refrigeration evaporators 250, 250a, 250b: Absorption Refrigeration Pumps 260, 260a, 260b: Absorption expansion valve 270, 270a, 270b: Absorption refrigeration heat exchangers 271: Second high temperature section 272: Second Cryogenic Section 280, 280a, 280b: Absorption relief valve 290, 290a, 290b: Absorption refrigeration absorbers 300, 300a, 300b: cooling secondary circulation system 310, 310a, 310b: Cooling Fluids 320, 320a, 320b: Cooling water towers 330, 330a, 330b: Cooling Pumps 400: heat source 510b, 520b: Compound recuperators

第1圖繪示依照本發明一第一實施例之一種複合式熱循環系統之方塊圖; 第2圖繪示依照本發明一第二實施例之一種複合式熱循環系統之方塊圖;以及 第3圖繪示依照本發明一第三實施例之一種複合式熱循環系統之方塊圖。 FIG. 1 shows a block diagram of a compound thermal cycle system according to a first embodiment of the present invention; FIG. 2 shows a block diagram of a compound thermal cycle system according to a second embodiment of the present invention; and FIG. 3 shows a block diagram of a compound thermal cycle system according to a third embodiment of the present invention.

10:複合式熱循環系統 10: Composite thermal cycle system

100:有機朗肯次循環系統 100: Organic Rankine Cycle System

110:有機朗肯冷凝器 110: Organic Rankine Condenser

120:第一工作流體 120: The first working fluid

130:有機朗肯泵浦 130: Organic Rankine Pump

140:有機朗肯蒸發器 140: Organic Rankine Evaporator

150:有機朗肯膨脹器 150: Organic Rankine Expander

160:有機朗肯發電機 160: Organic Rankine Generator

200:吸收式製冷次循環系統 200: Absorption refrigeration secondary circulation system

210:第二工作流體 210: Second working fluid

211:製冷劑 211: Refrigerant

212:吸收劑 212: Absorbent

220:吸收式製冷發生器 220: Absorption Refrigeration Generator

230:吸收式製冷冷凝器 230: Absorption refrigeration condenser

240:吸收式製冷蒸發器 240: Absorption refrigeration evaporator

250:吸收式製冷泵浦 250: Absorption refrigeration pump

260:吸收膨脹閥 260: Absorption expansion valve

270:吸收式製冷熱交換器 270: Absorption Refrigeration Heat Exchanger

271:第二高溫部 271: Second high temperature section

272:第二低溫部 272: Second Cryogenic Section

280:吸收減壓閥 280: Absorption pressure reducing valve

290:吸收式製冷吸收器 290: Absorption refrigeration absorber

300:冷卻次循環系統 300: cooling secondary circulation system

310:冷卻流體 310: Cooling Fluid

320:冷卻水塔 320: Cooling water tower

330:冷卻泵浦 330: Cooling Pump

400:熱源 400: heat source

Claims (6)

一種複合式熱循環系統,包含:一有機朗肯次循環系統,其包含:一有機朗肯冷凝器;一第一工作流體,其流經該有機朗肯冷凝器,並放出一熱能予該有機朗肯冷凝器以進行液化;一有機朗肯蒸發器,使液化後之該第一工作流體高壓汽化;一有機朗肯泵浦,將經過該有機朗肯冷凝器之該第一工作流體送至該有機朗肯蒸發器;及一有機朗肯膨脹器,接收高壓汽化後之該第一工作流體,以使高壓汽化後之該第一工作流體降壓,同時該有機朗肯膨脹器被驅動以產生一旋轉軸功,其中該有機朗肯冷凝器接收降壓後之該第一工作流體,使其放出該熱能,且該第一工作流體流經該有機朗肯冷凝器、該有機朗肯泵浦、該有機朗肯蒸發器及該有機朗肯膨脹器以形成迴路;一吸收式製冷次循環系統,其包含:一第二工作流體,包含一製冷劑及一吸收劑;一吸收式製冷發生器,加熱該第二工作流體以汽化該製冷劑;一吸收式製冷冷凝器,用以使汽化後之該製冷劑降溫液化;一吸收式製冷蒸發器,加熱使降溫液化並經降壓後之 該製冷劑再度汽化;及一吸收式製冷吸收器,連接該吸收式製冷蒸發器,且用以使該製冷劑及該吸收劑結合再度成為該第二工作流體;以及一冷卻次循環系統,包含一冷卻流體,該冷卻流體流經該吸收式製冷蒸發器及該有機朗肯冷凝器以形成迴路,其中,該冷卻流體流經該有機朗肯冷凝器並吸收該第一工作流體液化所放出之該熱能,該冷卻流體流經該吸收式製冷蒸發器,並提供該熱能中之至少一部分使該製冷劑汽化後,該冷卻流體再流回該有機朗肯冷凝器。 A compound thermal cycle system, comprising: an organic Rankine sub-cycle system, which includes: an organic Rankine condenser; a first working fluid, which flows through the organic Rankine condenser, and releases a heat energy to the organic Rankine condenser Rankine condenser for liquefaction; an organic Rankine evaporator to vaporize the first working fluid at high pressure after liquefaction; an organic Rankine pump to send the first working fluid passing through the organic Rankine condenser to a the organic Rankine evaporator; and an organic Rankine expander for receiving the first working fluid after high-pressure vaporization, so as to depressurize the first working fluid after the high-pressure vaporization, while the organic Rankine expander is driven to A rotating shaft work is generated, wherein the organic Rankine condenser receives the depressurized first working fluid to release the heat energy, and the first working fluid flows through the organic Rankine condenser and the organic Rankine pump Pu, the organic Rankine evaporator and the organic Rankine expander to form a loop; an absorption refrigeration sub-circulation system, which includes: a second working fluid, including a refrigerant and an absorbent; an absorption refrigeration generator The second working fluid is heated to vaporize the refrigerant; an absorption refrigerating condenser is used to cool down and liquefy the refrigerant after vaporization; an absorption refrigerating evaporator is heated to cool down and liquefy and depressurize the refrigerant. The refrigerant is re-evaporated; and an absorption refrigeration absorber is connected to the absorption refrigeration evaporator, and is used for combining the refrigerant and the absorbent to become the second working fluid again; and a cooling secondary circulation system, including a cooling fluid, the cooling fluid flows through the absorption refrigeration evaporator and the organic Rankine condenser to form a circuit, wherein the cooling fluid flows through the organic Rankine condenser and absorbs the liquefaction of the first working fluid. The thermal energy and the cooling fluid flow through the absorption refrigeration evaporator, and after providing at least a part of the thermal energy to vaporize the refrigerant, the cooling fluid flows back to the organic Rankine condenser. 如請求項1所述之複合式熱循環系統,其中該有機朗肯次循環系統更包含一復熱器,其包含一第一高溫部及一第一低溫部,該第一工作流體流經該有機朗肯膨脹器降壓後,經過該第一高溫部被吸收一餘熱,該第一低溫部將該餘熱提供給流入該有機朗肯蒸發器前之該第一工作流體進行預熱。 The compound thermal cycle system according to claim 1, wherein the organic Rankine subcycle system further comprises a recuperator comprising a first high temperature part and a first low temperature part, the first working fluid flows through the first working fluid After the organic Rankine expander is depressurized, a waste heat is absorbed through the first high temperature part, and the first low temperature part provides the waste heat to the first working fluid before flowing into the organic Rankine evaporator for preheating. 如請求項1所述之複合式熱循環系統,更包含:一熱源,先流經該有機朗肯蒸發器後,再流經該吸收式製冷發生器。 The composite thermal cycle system according to claim 1, further comprising: a heat source, which first flows through the organic Rankine evaporator, and then flows through the absorption refrigeration generator. 如請求項1所述之複合式熱循環系統,其中 該冷卻次循環系統更包含一冷卻水塔及一冷卻泵浦,該冷卻流體流經該有機朗肯冷凝器後,流經該冷卻水塔,再流經該冷卻泵浦以送至該吸收式製冷蒸發器,最後再回到該有機朗肯冷凝器。 The composite thermal cycle system of claim 1, wherein The cooling sub-circulation system further includes a cooling water tower and a cooling pump, the cooling fluid flows through the organic Rankine condenser, then flows through the cooling water tower, and then flows through the cooling pump to be sent to the absorption refrigeration evaporation and finally back to the organic Rankine condenser. 一種複合式熱循環系統,包含:一有機朗肯次循環系統,其包含:一有機朗肯冷凝器;一第一工作流體,其流經該有機朗肯冷凝器,並放出一熱能予該有機朗肯冷凝器以進行液化;一有機朗肯蒸發器,使液化後之該第一工作流體高壓汽化;一有機朗肯泵浦,將經過有機朗肯冷凝器之該第一工作流體送至該有機朗肯蒸發器;及一有機朗肯膨脹器,接收高壓汽化後之該第一工作流體,以使高壓汽化後之該第一工作流體降壓,同時該有機朗肯膨脹器被驅動以產生一旋轉軸功,其中該有機朗肯冷凝器接收降壓後之該第一工作流體,使其放出該熱能,且該第一工作流體流經該有機朗肯泵浦、該有機朗肯蒸發器、該有機朗肯膨脹器及該有機朗肯冷凝器以形成迴路;一吸收式製冷次循環系統,其包含:一第二工作流體,包含一製冷劑及一吸收劑;一吸收式製冷發生器,加熱該第二工作流體以汽化該 製冷劑;一吸收式製冷冷凝器,用以使汽化後之該製冷劑降溫液化;一吸收式製冷蒸發器,加熱使降溫液化並經降壓後之該製冷劑再度汽化;及一吸收式製冷吸收器,連接該吸收式製冷蒸發器,且用以使該製冷劑及該吸收劑結合再度成為該第二工作流體;一冷卻次循環系統,包含一冷卻流體,該冷卻流體流經該吸收式製冷蒸發器及該有機朗肯冷凝器以形成迴路;以及至少一複合式復熱器,以該第一工作流體預熱該第二工作流體,或以該第二工作流體預熱該第一工作流體;其中,該冷卻流體流經該有機朗肯冷凝器並吸收該第一工作流體液化所放出之該熱能,該冷卻流體流經該吸收式製冷蒸發器,並提供該熱能中之至少一部分使該製冷劑汽化後,該冷卻流體再流回該有機朗肯冷凝器。 A compound thermal cycle system, comprising: an organic Rankine sub-cycle system, which includes: an organic Rankine condenser; a first working fluid, which flows through the organic Rankine condenser, and releases a heat energy to the organic Rankine condenser Rankine condenser for liquefaction; an organic Rankine evaporator to vaporize the first working fluid after liquefaction at high pressure; an organic Rankine pump to send the first working fluid passed through the organic Rankine condenser to the an organic Rankine evaporator; and an organic Rankine expander for receiving the first working fluid after high pressure vaporization to depressurize the first working fluid after high pressure vaporization, while the organic Rankine expander is driven to generate A rotating shaft work, wherein the organic Rankine condenser receives the depressurized first working fluid to release the heat energy, and the first working fluid flows through the organic Rankine pump and the organic Rankine evaporator , the organic Rankine expander and the organic Rankine condenser to form a loop; an absorption refrigeration secondary cycle system, which includes: a second working fluid, including a refrigerant and an absorbent; an absorption refrigeration generator , heating the second working fluid to vaporize the Refrigerant; an absorption refrigerating condenser for cooling and liquefying the vaporized refrigerant; an absorption refrigerating evaporator for heating to make the cooled liquefied and depressurized refrigerant vaporized again; and an absorption refrigerating an absorber, connected to the absorption refrigeration evaporator, and used for combining the refrigerant and the absorbent to become the second working fluid again; a cooling sub-circulation system including a cooling fluid, the cooling fluid flowing through the absorption type a refrigeration evaporator and the organic Rankine condenser to form a circuit; and at least one compound recuperator for preheating the second working fluid with the first working fluid, or preheating the first working fluid with the second working fluid Fluid; wherein, the cooling fluid flows through the organic Rankine condenser and absorbs the thermal energy released by the liquefaction of the first working fluid, the cooling fluid flows through the absorption refrigeration evaporator, and provides at least a part of the thermal energy to make After the refrigerant is vaporized, the cooling fluid flows back to the organic Rankine condenser. 如請求項5所述之複合式熱循環系統,其中該至少一複合式復熱器的數量為二,其中一該複合式復熱器吸收該第一工作流體流經該有機朗肯膨脹器後所放出之一第一釋放熱,並預熱流入該吸收式製冷發生器前之重新混合之該第二工作流體;另一該複合式復熱器吸收流經該吸收式製冷發生器後汽化之該製冷劑所放出之一第二釋放 熱,並預熱流入該有機朗肯蒸發器前之該第一工作流體。 The compound thermal cycle system of claim 5, wherein the number of the at least one compound recuperator is two, and one of the compound recuperators absorbs the first working fluid after flowing through the organic Rankine expander One of the first released heat is released to preheat the second working fluid that is remixed before flowing into the absorption refrigeration generator; The refrigerant released by a second release heat and preheat the first working fluid before flowing into the organic Rankine evaporator.
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CN1303378C (en) * 2005-09-08 2007-03-07 上海交通大学 Combined circulating device capable of realizing absorption type cycle and organic matter Rankine cycle
CN102536363A (en) * 2010-11-19 2012-07-04 通用电气公司 Rankine cycle integrated with organic rankine cycle and absorption chiller cycle
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