JP2005300065A - Adsorption refrigerator - Google Patents

Adsorption refrigerator Download PDF

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JP2005300065A
JP2005300065A JP2004118787A JP2004118787A JP2005300065A JP 2005300065 A JP2005300065 A JP 2005300065A JP 2004118787 A JP2004118787 A JP 2004118787A JP 2004118787 A JP2004118787 A JP 2004118787A JP 2005300065 A JP2005300065 A JP 2005300065A
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adsorption
evaporator
condenser
desorption
valve body
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Genei Kin
鉉永 金
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Daikin Industries Ltd
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    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • 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]

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Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize an adsorption refrigerator by switching passages connecting an evaporator and a condenser to a pair of adsorbers/desorbers, with a single passage selector valve. <P>SOLUTION: In the adsorption refrigerator, the single passage selector valve 6 is interposed in a refrigerant circuit 5 to switch the state in which the evaporator 1 communicates with either of the adsorbers/desorbers 3 and 4 and the condenser 2 communicates with the other of the adsorbers/desorbers 3 and 4 and the state in which all the evaporator 1, condenser 2 and adsorbers/desorbers 3 and 4 are disconnected. The switching action of the single passage selector valve 6 can switch the state in which the evaporator 1 communicates with either of the adsorbers/desorbers 3 and 4 and the condenser 2 communicates with the other of the adsorbers/desorbers 3 and 4 and the state in which all the evaporator 1, condenser 2 and adsorbers/desorbers 3 and 4 are disconnected. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本願発明は、吸着式冷凍装置に関し、小型化された吸着式冷凍装置に関するものである。   The present invention relates to an adsorption refrigeration apparatus, and relates to a downsized adsorption refrigeration apparatus.

一般に、吸着式冷凍装置は、作動冷媒を蒸発させる蒸発器と、作動冷媒の凝縮を行う凝縮器と、作動冷媒の蒸気を吸着あるいは脱着する吸着剤を充填してなる一対の吸脱着器と、これらの間に作動冷媒を循環させる冷媒循環路とを備えて構成されており、前記冷媒循環路には、蒸発器および凝縮器と一対の吸脱着器との間に４個の電磁開閉弁が介設されている。   In general, the adsorption refrigeration apparatus includes an evaporator for evaporating the working refrigerant, a condenser for condensing the working refrigerant, and a pair of adsorption / desorption devices filled with an adsorbent that adsorbs or desorbs the vapor of the working refrigerant, A refrigerant circulation path that circulates the working refrigerant is provided between them, and four electromagnetic on-off valves are provided between the evaporator and the condenser and the pair of adsorption / desorption units in the refrigerant circulation path. It is installed.

そして、２個の電磁閉弁を開作動させ且つ２個の電磁開閉弁を閉作動させることにより冷媒蒸気を吸着剤に吸着させる吸着器として作用している吸脱着器の一方と蒸発器とを連通し且つ冷媒蒸気を吸着剤から脱着させる脱着器として作用している吸脱着器の他方と凝縮器とを連通する状態する第１ステージと、全部の電磁開閉弁を閉作動させることにより蒸発器および凝縮器と一対の吸脱着器とを全て非連通とする予熱ステージと、前記第１ステージとは逆の２個の電磁開閉弁を開作動させ且つ２個の電磁開作動を閉作動させることにより前記第１ステージにおいて吸着器として作用していた吸脱着器を脱着器として作用させ且つ前記第１ステージに脱着器として作用していた吸脱着器を吸着器として作用させる第２ステージと、全部の電磁開閉弁を閉作動させることにより蒸発器および凝縮器と一対の吸脱着器とを全て非連通とする予熱ステージとを順次繰り返すことにより冷凍装置の運転が行われるととなっている（特許文献１参照）。   Then, one of the adsorption / desorption devices acting as an adsorber for adsorbing the refrigerant vapor to the adsorbent by opening the two electromagnetic valves and closing the two electromagnetic valves, and the evaporator A first stage communicating with the other of the adsorption / desorption device acting as a desorption device for desorbing the refrigerant vapor from the adsorbent and the condenser, and the evaporator by closing all the electromagnetic on-off valves And a preheating stage in which the condenser and the pair of adsorption / desorption devices are not in communication with each other, and two electromagnetic opening / closing valves opposite to the first stage are opened and the two electromagnetic opening operations are closed. A second stage that causes the adsorption / desorption device that acted as an adsorber in the first stage to act as a desorption device and the adsorption / desorption device that acted as a desorption device to the first stage act as an adsorber, Electromagnetic The refrigerating apparatus is operated by sequentially repeating a preheating stage in which the evaporator, the condenser, and the pair of adsorption / desorption devices are all in communication by closing the valve closing operation (Patent Document 1). reference).

米国特許第６４３４９５５号公報。U.S. Pat. No. 6,434,955.

ところが、近年、吸着式冷凍装置の小型化への指向が強くなっており、上記した公知の吸着式冷凍装置の場合、４個の電磁開閉弁が必要なところから、その占める容積が大きくなり、小型化の阻害要因となっていた。また、電磁開閉弁を用いた場合、開弁状態あるいは閉弁状態においては、ソレノイドへの通電を継続する必要があり、省エネ化の阻害要因ともなっていた。   However, in recent years, the direction toward downsizing of the adsorption refrigeration apparatus has become stronger, and in the case of the above-described known adsorption refrigeration apparatus, the volume occupied by four electromagnetic on-off valves is increased, It was an obstacle to miniaturization. Further, when an electromagnetic opening / closing valve is used, it is necessary to continue energization of the solenoid in the valve open state or the valve closed state, which has been an obstacle to energy saving.

本願発明は、上記の点に鑑みてなされたもので、蒸発器および凝縮器と一対の吸脱着器とを接続する通路の切換を、１個の通路切換弁を用いて行い得るようにすることにより、吸着式冷凍装置の小型化を図ることを目的としている。   The present invention has been made in view of the above points, and enables switching of a passage connecting an evaporator and a condenser and a pair of adsorption / desorption devices using a single passage switching valve. Therefore, it is intended to reduce the size of the adsorption refrigeration apparatus.

本願発明では、上記課題を解決するための第１の手段として、作動冷媒Ｘを蒸発させる蒸発器１と、作動冷媒Ｘの凝縮を行う凝縮器２と、作動冷媒Ｘの蒸気を吸着あるいは脱着する吸着剤を充填してなる一対の吸脱着器３，４と、これらの間に作動冷媒Ｘを循環させる冷媒循環路５とを備えた吸着式冷凍装置において、前記冷媒循環路５に、前記蒸発器１と前記吸脱着器３，４の一方とを連通し且つ前記凝縮器２と前記吸脱着器３，４の他方とを連通する状態と、前記蒸発器１と前記凝縮器２と前記吸脱着器３，４とを共に非連通とする状態とに切換作動する一つの通路切換弁６を介設している。   In the present invention, as a first means for solving the above problems, an evaporator 1 for evaporating the working refrigerant X, a condenser 2 for condensing the working refrigerant X, and a vapor of the working refrigerant X are adsorbed or desorbed. In an adsorption refrigeration apparatus comprising a pair of adsorption / desorption devices 3, 4 filled with an adsorbent and a refrigerant circulation path 5 for circulating a working refrigerant X between them, the refrigerant circulation path 5 is provided with the evaporation. The evaporator 1 and one of the adsorption / desorption devices 3 and 4 and the condenser 2 and the other of the adsorption / desorption devices 3 and 4, and the evaporator 1, the condenser 2 and the adsorption / desorption device. A single passage switching valve 6 is provided to switch between the desorbers 3 and 4 so as not to communicate with each other.

上記のように構成したことにより、一つの通路切換弁６の切換作動により、蒸発器１と吸脱着器３，４の一方とを連通し且つ凝縮器２と吸脱着器３，４の他方とを連通する状態と、蒸発器１と凝縮器２と吸脱着器３，４とを共に非連通とする状態とに切換可能となり、従来の４個の電磁開閉弁を使用した場合に比べて大幅な容積低減を図ることができる。その結果、吸着式冷凍装置の小型化を図ることができる。   With the above configuration, the switching operation of one passage switching valve 6 allows the evaporator 1 and one of the adsorption / desorption devices 3 and 4 to communicate with each other and the condenser 2 and the other of the adsorption / desorption devices 3 and 4 to communicate with each other. Can be switched between a state in which the evaporator 1 is communicated and a state in which the evaporator 1, the condenser 2, and the adsorption / desorption devices 3 and 4 are not in communication with each other. Volume reduction can be achieved. As a result, the adsorption refrigeration apparatus can be downsized.

本願発明では、さらに、上記課題を解決するための第２の手段として、上記第１の手段を備えた吸着式冷凍装置において、前記通路切換弁６を、前記蒸発器１、前記凝縮器２および前記吸脱着器３，４にそれぞれ接続される四つのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄを円周方向に有する円筒形状の弁本体７と、該弁本体７内にあって回転作動され且つ前記四つのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄのうちの隣合う二つのポートを開通させる位置あるいは全てのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄを非連通状態とする位置をとる弁体８と、該弁体８を回転駆動させる駆動手段９とによって構成することもでき、そのように構成した場合、構造が簡単となるとともに、駆動手段９は弁体８の回転作動時にのみ駆動されることとなり、省エネとなる。   In the present invention, as a second means for solving the above-described problem, in the adsorption refrigeration apparatus provided with the first means, the passage switching valve 6 is connected to the evaporator 1, the condenser 2, and A cylindrical valve body 7 having four ports 10A, 10B, 10C, and 10D connected to the adsorption / desorption devices 3 and 4, respectively, in the circumferential direction, and is rotationally operated in the valve body 7 and the four A valve body 8 in a position where two adjacent ports among the two ports 10A, 10B, 10C, 10D are opened or a position where all the ports 10A, 10B, 10C, 10D are in a non-communication state, and the valve body 8 The drive means 9 can be configured to rotate, and in that case, the structure is simplified, and the drive means 9 is driven only when the valve body 8 is rotated. The energy.

本願発明では、さらに、上記課題を解決するための第３の手段として、上記第１又は第２の手段を備えた吸着式冷凍装置において、前記吸脱着器３，４を冷却あるいは加熱する熱源としてペルチエ素子１７を採用することもでき、そのように構成した場合、吸脱着器３，４を吸着器あるいは脱着器として作用させる際の熱源が、ペルチエ素子１７への通電の方向を切り換えるのみで得られることとなり、更なる小型化および省エネを図ることができる。   In the present invention, as a third means for solving the above problems, in the adsorption refrigeration apparatus provided with the first or second means, as a heat source for cooling or heating the adsorption / desorption devices 3 and 4. A Peltier element 17 can also be employed. In such a configuration, a heat source for operating the adsorption / desorption devices 3 and 4 as an adsorber or desorption device can be obtained simply by switching the direction of energization of the Peltier element 17. Therefore, further downsizing and energy saving can be achieved.

本願発明の第１の手段によれば、作動冷媒Ｘを蒸発させる蒸発器１と、作動冷媒Ｘの凝縮を行う凝縮器２と、作動冷媒Ｘの蒸気を吸着あるいは脱着する吸着剤を充填してなる一対の吸脱着器３，４と、これらの間に作動冷媒Ｘを循環させる冷媒循環路５とを備えた吸着式冷凍装置において、前記冷媒循環路５に、前記蒸発器１と前記吸脱着器３，４の一方とを連通し且つ前記凝縮器２と前記吸脱着器３，４の他方とを連通する状態と、前記蒸発器１と前記凝縮器２と前記吸脱着器３，４とを共に非連通とする状態とに切換作動する一つの通路切換弁６を介設して、一つの通路切換弁６の切換作動により、蒸発器１と吸脱着器３，４の一方とを連通し且つ凝縮器２と吸脱着器３，４の他方とを連通する状態と、蒸発器１と凝縮器２と吸脱着器３，４とを共に非連通とする状態とに切換可能としたので、従来の４個の電磁開閉弁を使用した場合に比べて大幅な容積低減を図ることができることとなり、吸着式冷凍装置の小型化を図ることができるという効果がある。   According to the first means of the present invention, an evaporator 1 that evaporates the working refrigerant X, a condenser 2 that condenses the working refrigerant X, and an adsorbent that adsorbs or desorbs the vapor of the working refrigerant X are filled. In an adsorption refrigeration apparatus comprising a pair of adsorption / desorption devices 3 and 4 and a refrigerant circulation path 5 for circulating the working refrigerant X therebetween, the evaporator 1 and the adsorption / desorption are disposed in the refrigerant circulation path 5. A state in which one of the condensers 3 and 4 is communicated and the condenser 2 and the other of the adsorption / desorption units 3 and 4 are communicated, and the evaporator 1, the condenser 2, and the adsorption / desorption units 3 and 4, Are connected to one of the adsorption / desorption devices 3 and 4 by the switching operation of one passage switching valve 6. And the state in which the condenser 2 communicates with the other of the adsorption / desorption devices 3 and 4, the evaporator 1, the condenser 2, and the adsorption / desorption device 3. 4 can be switched to a state in which both are disconnected from each other, the volume can be greatly reduced compared to the case of using four conventional solenoid valves, and the adsorption refrigeration apparatus can be reduced in size. There is an effect that can be achieved.

本願発明の第２の手段におけるように、上記第１の手段を備えた吸着式冷凍装置において、前記通路切換弁６を、前記蒸発器１、前記凝縮器２および前記吸脱着器３，４にそれぞれ接続される四つのポートを円周方向に有する円筒形状の弁本体と、該弁本体内にあって回転作動され且つ前記四つのポートのうちの隣合う二つのポートを開通させる位置あるいは全てのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄを非連通状態とする位置をとる弁体８と、該弁体８を回転駆動させる駆動手段９とによって構成することもでき、そのように構成した場合、構造が簡単となるとともに、駆動手段９は弁体８の回転作動時にのみ駆動されることとなり、省エネとなる。   As in the second means of the present invention, in the adsorption refrigeration apparatus having the first means, the passage switching valve 6 is connected to the evaporator 1, the condenser 2 and the adsorption / desorption devices 3 and 4. A cylindrical valve body having four ports connected to each other in the circumferential direction, and a position within the valve body that is rotationally operated and opens two adjacent ports among the four ports or all of them It can also be comprised by the valve body 8 which takes the position which makes the port 10A, 10B, 10C, 10D a non-communication state, and the drive means 9 which rotationally drives this valve body 8, and in that case, structure is In addition to simplification, the driving means 9 is driven only when the valve body 8 is rotated, thereby saving energy.

本願発明の第３の手段におけるように、上記第１又は第２の手段を備えた吸着式冷凍装置において、前記吸脱着器３，４を冷却あるいは加熱する熱源としてペルチエ素子１７を採用することもでき、そのように構成した場合、吸脱着器３，４を吸着器あるいは脱着器として作用させる際の熱源が、ペルチエ素子１７への通電の方向を切り換えるのみで得られることとなり、更なる小型化および省エネを図ることができる。   As in the third means of the present invention, in the adsorption refrigeration apparatus provided with the first or second means, a Peltier element 17 may be employed as a heat source for cooling or heating the adsorption / desorption devices 3 and 4. In such a case, the heat source for operating the adsorption / desorption devices 3 and 4 as an adsorber or desorption device can be obtained only by switching the direction of energization to the Peltier element 17, and further miniaturization is possible. And can save energy.

以下、添付の図面を参照して、本願発明の幾つかの好適な実施の形態について説明する。   Hereinafter, several preferred embodiments of the present invention will be described with reference to the accompanying drawings.

第１の実施の形態
図１ないし図６には、本願発明の第１の実施の形態にかかる吸着式冷凍装置の概略構成が示されている。 First Embodiment FIGS. 1 to 6 show a schematic configuration of an adsorption refrigeration apparatus according to a first embodiment of the present invention.

この吸着式冷凍装置は、図１に示すように、作動冷媒Ｘを蒸発させる蒸発器１と、作動冷媒Ｘの凝縮を行う凝縮器２と、作動冷媒Ｘの蒸気を吸着あるいは脱着する吸着剤を充填してなる一対の吸脱着器３，４と、これらの間に作動冷媒Ｘを循環させる冷媒循環路５とを備えて構成されており、前記冷媒循環路５には、前記蒸発器１と前記吸脱着器３，４の一方とを連通し且つ前記凝縮器２と前記吸脱着器３，４の他方とを連通する状態と、前記蒸発器１と前記凝縮器２と前記吸脱着器３，４とを共に非連通とする状態とに切換作動する一つの通路切換弁６が介設されている。符号１１は蒸発器１と凝縮器２とを連通し、凝縮器２で凝縮された液冷媒を蒸発器１へ供給するための連通路、１２，１３，１４，１５は蒸発器１、凝縮器２、吸脱着器３，４にそれぞれ配設された熱交換器である。   As shown in FIG. 1, this adsorption refrigeration apparatus includes an evaporator 1 that evaporates the working refrigerant X, a condenser 2 that condenses the working refrigerant X, and an adsorbent that adsorbs or desorbs the vapor of the working refrigerant X. A pair of adsorbing and desorbing devices 3 and 4 that are filled, and a refrigerant circulation path 5 that circulates the working refrigerant X therebetween are provided. The refrigerant circulation path 5 includes the evaporator 1 and the refrigerant circulation path 5. A state in which one of the adsorption / desorption devices 3 and 4 is communicated and the condenser 2 and the other of the adsorption / desorption devices 3 and 4 are communicated; and the evaporator 1, the condenser 2 and the adsorption / desorption device 3. , 4 is provided with one passage switching valve 6 which is switched to a state where both are not in communication. Reference numeral 11 communicates the evaporator 1 and the condenser 2, and a communication path for supplying the liquid refrigerant condensed in the condenser 2 to the evaporator 1. Reference numerals 12, 13, 14, and 15 denote the evaporator 1 and the condenser. 2 and heat exchangers respectively disposed in the adsorption / desorption devices 3 and 4.

前記通路切換弁６は、図５および図６に示すように、前記蒸発器１、前記凝縮器２および前記吸脱着器３，４にそれぞれ接続される四つのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄを円周方向に有する円筒形状の弁本体７と、該弁本体７内にあって回転作動され且つ前記四つのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄのうちの隣合う二つのポート１０Ａ，１０Ｂあるいは１０Ｃ，１０Ｄを開通させる位置あるいは全てのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄを閉塞する位置をとる弁体８と、該弁体８を回転駆動させる駆動手段として作用するステッピングモータ９とによって構成されている。このようにすると、通路切換弁６の構造が極めて簡単となる。   As shown in FIGS. 5 and 6, the passage switching valve 6 includes four ports 10A, 10B, 10C, and 10D connected to the evaporator 1, the condenser 2, and the adsorption / desorption devices 3 and 4, respectively. A cylindrical valve body 7 having a circumferential direction, and two adjacent ports 10A, 10B, or 10C of the four ports 10A, 10B, 10C, and 10D that are rotationally operated in the valve body 7 and The valve body 8 takes a position for opening 10D or a position for closing all the ports 10A, 10B, 10C, and 10D, and a stepping motor 9 that acts as a driving means for rotationally driving the valve body 8. In this way, the structure of the passage switching valve 6 becomes very simple.

そして、吸脱着器３，４には、該吸脱着器３，４を冷却あるいは加熱するための熱源として冷却水Ｗｃあるいは熱源水Ｗｈが供給されることとなっている。   The adsorption / desorption devices 3 and 4 are supplied with cooling water Wc or heat source water Wh as a heat source for cooling or heating the adsorption / desorption devices 3 and 4.

また、本実施の形態においては、作動冷媒Ｘとしては、例えば水が使用され、吸着剤としては、例えばキセロゲルが使用される。   In the present embodiment, for example, water is used as the working refrigerant X, and xerogel is used as the adsorbent, for example.

上記構成の吸着式冷凍装置の作用について、以下に説明する。
（Ｉ） 第１ステージ
図１に示すように、通路切換弁６における二つのポート１０Ａ，１０Ｂおよび１０Ｃ，１０Ｄが連通する位置に弁体８が位置せしめられる。その結果、吸着器として作用している吸脱着器３と蒸発器１とが連通され、脱着器として作用している吸脱着器４と凝縮器２とが連通されることとなる。この時、吸脱着器３には冷却水Ｗｃが供給され、吸脱着器４には熱源水Ｗｈが供給されることとなっている。この状態においては、蒸発器１においては冷水が得られ、凝縮器２においては温水が得られることとなる。このようにして得られた冷水あるいは温水は、冷房用あるいは暖房用の熱源として用いられる。
（ＩＩ） 予熱ステージ
第１ステージの状態で運転していると、吸脱着器３，４は飽和状態となるので、図２に示すように、吸脱着器３に熱源水Ｗｈを供給し、吸脱着器４に冷却水Ｗｃを供給するように切り換えると同時に、ステッピングモータ９により弁体８が４５°だけ回転せしめられ、通路切換弁６における四つのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄが非連通となる位置に弁体８が位置せしめられる。その結果、蒸発器１および凝縮器２と二つの吸脱着器３，４とは全て非連通となる。この状態においては、吸脱着器３は熱源水Ｗｈにより加熱され、吸脱着器４は冷却水Ｗｃにより冷却されることとなる。つまり、吸脱着器３，４の予熱が行われるのである。この状態においても、蒸発器１においては冷水が得られ、凝縮器２においては温水が得られることとなる。このようにして得られた冷水あるいは温水は、冷房用あるいは暖房用の熱源として用いられる。
（ＩＩＩ） 第２ステージ
予熱ステージにおいて吸脱着器３，４の温度が所定温度となると、図３に示すように、ステッピングモータ９により弁体８が４５°だけ回転せしめられ、通路切換弁６における二つのポート１０Ｂ，１０Ｃおよび１０Ｄ，１０Ａが連通する位置に弁体８が位置せしめられる。その結果、第１ステージとは逆に、吸着器として作用している吸脱着器４と蒸発器１とが連通され、脱着器として作用している吸脱着器３と凝縮器２とが連通されることとなる。この時、吸脱着器３には熱源水Ｗｈが供給され、吸脱着器４には冷却水Ｗｃが供給されることとなっている。この状態においては、蒸発器１においては冷水が得られ、凝縮器２においては温水が得られることとなる。このようにして得られた冷水あるいは温水は、冷房用あるいは暖房用の熱源として用いられる。
（ＩＶ） 予熱ステージ
第２ステージの状態で運転していると、吸脱着器３，４は飽和状態となるので、図４に示すように、吸脱着器３に冷却水Ｗｃを供給し、吸脱着器４に熱源水Ｗｈを供給するように切り換えると同時に、ステッピングモータ９により弁体８が４５°だけ回転せしめられ、通路切換弁６における四つのポート１０Ａ，１０Ｂ，１０Ｃ，１０Ｄが非連通となる位置に弁体８が位置せしめられる。その結果、蒸発器１および凝縮器２と二つの吸脱着器３，４とは全て非連通となる。この状態においては、吸脱着器３は冷却水Ｗｃにより冷却され、吸脱着器４は熱源水Ｗｈにより加熱されることとなる。つまり、吸脱着器３，４の予熱が行われるのである。この状態においても、蒸発器１においては冷水が得られ、凝縮器２においては温水が得られることとなる。このようにして得られた冷水あるいは温水は、冷房用あるいは暖房用の熱源として用いられる。 The operation of the adsorption refrigeration apparatus having the above configuration will be described below.
(I) First Stage As shown in FIG. 1, the valve body 8 is positioned at a position where the two ports 10 </ b> A, 10 </ b> B and 10 </ b> C, 10 </ b> D in the passage switching valve 6 communicate with each other. As a result, the adsorption / desorption device 3 acting as the adsorber and the evaporator 1 are communicated, and the adsorption / desorption device 4 acting as the desorption device and the condenser 2 are communicated. At this time, the cooling water Wc is supplied to the adsorption / desorption device 3, and the heat source water Wh is supplied to the adsorption / desorption device 4. In this state, cold water is obtained in the evaporator 1, and hot water is obtained in the condenser 2. The cold water or hot water thus obtained is used as a heat source for cooling or heating.
(II) Preheating stage When operating in the state of the first stage, the adsorption / desorption devices 3 and 4 are saturated, so as shown in FIG. 2, the heat source water Wh is supplied to the adsorption / desorption device 3, At the same time as switching to supply the cooling water Wc to the desorber 4, the valve body 8 is rotated by 45 ° by the stepping motor 9, and the four ports 10A, 10B, 10C, 10D in the passage switching valve 6 are not connected. The valve body 8 is positioned at the position. As a result, the evaporator 1 and the condenser 2 and the two adsorption / desorption devices 3 and 4 are all disconnected. In this state, the adsorption / desorption device 3 is heated by the heat source water Wh, and the adsorption / desorption device 4 is cooled by the cooling water Wc. That is, preheating of the adsorption / desorption devices 3 and 4 is performed. Even in this state, cold water is obtained in the evaporator 1, and hot water is obtained in the condenser 2. The cold water or hot water thus obtained is used as a heat source for cooling or heating.
(III) Second Stage When the temperature of the adsorption / desorption devices 3 and 4 reaches a predetermined temperature in the preheating stage, the valve body 8 is rotated by 45 ° by the stepping motor 9 as shown in FIG. The valve body 8 is positioned at a position where the two ports 10B, 10C and 10D, 10A communicate with each other. As a result, contrary to the first stage, the adsorption / desorption device 4 acting as an adsorber and the evaporator 1 are communicated, and the adsorption / desorption device 3 acting as a desorption device and the condenser 2 are communicated. The Rukoto. At this time, the heat source water Wh is supplied to the adsorption / desorption device 3, and the cooling water Wc is supplied to the adsorption / desorption device 4. In this state, cold water is obtained in the evaporator 1, and hot water is obtained in the condenser 2. The cold water or hot water thus obtained is used as a heat source for cooling or heating.
(IV) Preheating stage When operating in the state of the second stage, the adsorption / desorption devices 3 and 4 are saturated, so that the cooling water Wc is supplied to the adsorption / desorption device 3 as shown in FIG. At the same time as switching to supply the heat source water Wh to the desorber 4, the valve body 8 is rotated by 45 ° by the stepping motor 9, and the four ports 10A, 10B, 10C, and 10D in the passage switching valve 6 are disconnected. The valve body 8 is positioned at the position. As a result, the evaporator 1 and the condenser 2 and the two adsorption / desorption devices 3 and 4 are all disconnected. In this state, the adsorption / desorption device 3 is cooled by the cooling water Wc, and the adsorption / desorption device 4 is heated by the heat source water Wh. That is, preheating of the adsorption / desorption devices 3 and 4 is performed. Even in this state, cold water is obtained in the evaporator 1, and hot water is obtained in the condenser 2. The cold water or hot water obtained in this way is used as a heat source for cooling or heating.

上記した四つのステージを繰り返すことにより、この吸着式冷凍装置の運転が行われるのである。   By repeating the above four stages, the adsorption refrigeration apparatus is operated.

上記のように構成したことにより、一つの通路切換弁６の切換作動により、蒸発器１と吸脱着器３，４の一方とを連通し且つ凝縮器２と吸脱着器３，４の他方とを連通する状態と、蒸発器１と凝縮器２と吸脱着器３，４とを共に非連通とする状態とに切換可能となり、従来の４個の電磁開閉弁を使用した場合に比べて大幅な容積低減を図ることができる。その結果、吸着式冷凍装置の小型化を図ることができる。   With the above configuration, the switching operation of one passage switching valve 6 allows the evaporator 1 and one of the adsorption / desorption devices 3 and 4 to communicate with each other and the condenser 2 and the other of the adsorption / desorption devices 3 and 4 to communicate with each other. Can be switched between a state in which the evaporator 1 is communicated and a state in which the evaporator 1, the condenser 2, and the adsorption / desorption devices 3 and 4 are not in communication with each other. Volume reduction can be achieved. As a result, the adsorption refrigeration apparatus can be downsized.

しかも、通路切換弁６の駆動手段として作用するステッピングモータ９は、通路切換弁６における弁体８を回転させるときのみ通電されることとなり、省エネとなる。   In addition, the stepping motor 9 acting as a drive means for the passage switching valve 6 is energized only when the valve body 8 in the passage switching valve 6 is rotated, thereby saving energy.

ところで、通路切換弁６としては、図７および図８に示すようなものを用いることもできる。   Incidentally, as the passage switching valve 6, the one shown in FIGS. 7 and 8 may be used.

図７に示す通路切換弁６における弁体８には、該弁体８の９０°回転毎に隣り合う二つのポートを連通する連通路１６，１６が形成されている。また、図８に示す通路切換弁６における弁体８の端部には、ポートを閉塞するための拡大部８ａ，８ａが形成されている。   In the valve body 8 in the passage switching valve 6 shown in FIG. 7, communication passages 16, 16 are formed that communicate two adjacent ports every 90 ° rotation of the valve body 8. Further, enlarged portions 8a and 8a for closing the ports are formed at the end of the valve body 8 in the passage switching valve 6 shown in FIG.

第２の実施の形態
図９には、本願発明の第２の実施の形態にかかる吸着式冷凍装置が示されている。 Second Embodiment FIG. 9 shows an adsorption refrigeration apparatus according to a second embodiment of the present invention.

この場合、吸脱着器３，４を冷却あるいは加熱する熱源としてペルチエ素子１７を採用している。ペルチエ素子１７は、所定の電圧を印加すると、一端側で放熱作用が得られ、他端側では吸熱作用が得られるという性質を有しており、しかも、電流の極性を変えるだけで、放熱作用と吸熱作用とを切り換えることも可能である。従って、吸脱着器３，４を吸着器あるいは脱着器として作用させる際の熱源として使用できる。このようにすると、吸脱着器３，４を吸着器あるいは脱着器として作用させる際の熱源が、ペルチエ素子１７への通電の方向を切り換えるのみで得られることとなり、更なる小型化および省エネを図ることができる。符号１８はフィンである。その他の構成および作用効果は、第１の実施の形態におけると同様なので説明を省略する。   In this case, a Peltier element 17 is employed as a heat source for cooling or heating the adsorption / desorption devices 3 and 4. The Peltier element 17 has such a property that when a predetermined voltage is applied, a heat dissipation action can be obtained at one end side, and a heat absorption action can be obtained at the other end side. It is also possible to switch between the endothermic effect. Therefore, the adsorption / desorption devices 3 and 4 can be used as a heat source when acting as an adsorber or a desorption device. In this way, a heat source for operating the adsorption / desorption devices 3 and 4 as an adsorber or desorption device can be obtained only by switching the direction of energization to the Peltier element 17, thereby further reducing the size and saving energy. be able to. Reference numeral 18 denotes a fin. Since other configurations and operational effects are the same as those in the first embodiment, the description thereof is omitted.

本願発明の第１の実施の形態にかかる吸着式冷凍装置の第１ステージ状態を示す概略構成図である。It is a schematic block diagram which shows the 1st stage state of the adsorption | suction type freezing apparatus concerning 1st Embodiment of this invention. 本願発明の第１の実施の形態にかかる吸着式冷凍装置の予熱ステージ状態を示す概略構成図である。It is a schematic block diagram which shows the preheating stage state of the adsorption | suction type freezing apparatus concerning 1st Embodiment of this invention. 本願発明の第１の実施の形態にかかる吸着式冷凍装置の第２ステージ状態を示す概略構成図である。It is a schematic block diagram which shows the 2nd stage state of the adsorption | suction type freezing apparatus concerning 1st Embodiment of this invention. 本願発明の第１の実施の形態にかかる吸着式冷凍装置の予熱ステージ状態を示す概略構成図である。It is a schematic block diagram which shows the preheating stage state of the adsorption | suction type freezing apparatus concerning 1st Embodiment of this invention. 本願発明の第１の実施の形態にかかる吸着式冷凍装置における通路切換弁の斜視図である。1 is a perspective view of a passage switching valve in an adsorption refrigeration apparatus according to a first embodiment of the present invention. 本願発明の第１の実施の形態にかかる吸着式冷凍装置における通路切換弁の断面図である。It is sectional drawing of the channel | path switching valve in the adsorption | suction type freezing apparatus concerning 1st Embodiment of this invention. 本願発明の第１の実施の形態にかかる吸着式冷凍装置における通路切換弁の変形例を示す断面図である。It is sectional drawing which shows the modification of the channel | path switching valve in the adsorption | suction type freezing apparatus concerning 1st Embodiment of this invention. 本願発明の第１の実施の形態にかかる吸着式冷凍装置における通路切換弁の他の変形例を示す断面図である。It is sectional drawing which shows the other modification of the channel | path switching valve in the adsorption | suction type freezing apparatus concerning 1st Embodiment of this invention. 本願発明の第２の実施の形態にかかる吸着式冷凍装置の概略構成図である。It is a schematic block diagram of the adsorption | suction type freezing apparatus concerning 2nd Embodiment of this invention.

符号の説明Explanation of symbols

１は蒸発器
２は凝縮器
３，４は吸脱着器
５は冷媒循環路
６は通路切換弁
７は弁本体
８は弁体
９は駆動手段（ステッピングモータ）
１０Ａ，１０Ｂ，１０Ｃ，１０Ｄはポート
１７はペルチエ素子 1 is an evaporator, 2 is a condenser, 3 is an adsorption / desorption device, 5 is a refrigerant circulation path, 6 is a passage switching valve, 7 is a valve body, 8 is a valve body, and 9 is a driving means (stepping motor).
10A, 10B, 10C and 10D are ports 17 are Peltier elements

Claims (3)

作動冷媒（Ｘ）を蒸発させる蒸発器（１）と、作動冷媒（Ｘ）の凝縮を行う凝縮器（２）と、作動冷媒（Ｘ）の蒸気を吸着あるいは脱着する吸着剤を充填してなる一対の吸脱着器（３），（４）と、これらの間に作動冷媒（Ｘ）を循環させる冷媒循環路（５）とを備えた吸着式冷凍装置であって、前記冷媒循環路（５）には、前記蒸発器（１）と前記吸脱着器（３），（４）の一方とを連通し且つ前記凝縮器（２）と前記吸脱着器（３），（４）の他方とを連通する状態と、前記蒸発器（１）と前記凝縮器（２）と前記吸脱着器（３），（４）とを共に非連通とする状態とに切換作動する一つの通路切換弁（６）を介設したことを特徴とする吸着式冷凍装置。 An evaporator (1) that evaporates the working refrigerant (X), a condenser (2) that condenses the working refrigerant (X), and an adsorbent that adsorbs or desorbs the vapor of the working refrigerant (X). An adsorption refrigeration apparatus comprising a pair of adsorption / desorption devices (3), (4) and a refrigerant circulation path (5) for circulating a working refrigerant (X) therebetween, wherein the refrigerant circulation path (5 ) Communicates the evaporator (1) with one of the adsorption / desorption devices (3), (4) and the condenser (2) with the other of the adsorption / desorption devices (3), (4). A passage switching valve that switches between a state in which the evaporator (1), the condenser (2), and the adsorption / desorption devices (3), (4) are not in communication with each other. 6) An adsorptive refrigeration apparatus characterized by interposing. 前記通路切換弁（６）を、前記蒸発器（１）、前記凝縮器（２）および前記吸脱着器（３），（４）にそれぞれ接続される四つのポート（１０Ａ），（１０Ｂ），（１０Ｃ），（１０Ｄ）を円周方向に有する円筒形状の弁本体（７）と、該弁本体（７）内にあって回転作動され且つ前記四つのポート（１０Ａ），（１０Ｂ），（１０Ｃ），（１０Ｄ）のうちの隣合う二つのポートを開通させる位置あるいは全てのポート（１０Ａ），（１０Ｂ），（１０Ｃ），（１０Ｄ）を非連通状態とする位置をとる弁体（８）と、該弁体（８）を回転駆動させる駆動手段（９）とによって構成したことを特徴とする請求項１記載の吸着式冷凍装置。 Four ports (10A), (10B), which are connected to the evaporator (1), the condenser (2), and the adsorption / desorption devices (3), (4), respectively, for the passage switching valve (6). A cylindrical valve body (7) having (10C) and (10D) in the circumferential direction, and the four ports (10A), (10B), ( 10C), (10D) A valve body (8) that takes a position where two adjacent ports are opened or a position where all the ports (10A), (10B), (10C), (10D) are in a non-communication state And a drive means (9) for rotationally driving the valve body (8). 前記吸脱着器（３），（４）を冷却あるいは加熱する熱源としてペルチエ素子（１７）を採用したことを特徴とする請求項１および２のいずれか一項記載の吸着式冷凍装置。 The adsorption refrigeration apparatus according to any one of claims 1 and 2, wherein a Peltier element (17) is employed as a heat source for cooling or heating the adsorption / desorption devices (3), (4).
JP2004118787A 2004-04-14 2004-04-14 Adsorption refrigerator Pending JP2005300065A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107543332A (en) * 2017-10-09 2018-01-05 广州市香港科大霍英东研究院 A kind of close-coupled absorbing refrigeration system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107543332A (en) * 2017-10-09 2018-01-05 广州市香港科大霍英东研究院 A kind of close-coupled absorbing refrigeration system

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