JP2000111212A - Absorption refrigerating machine interface activator circulating circuit - Google Patents
Absorption refrigerating machine interface activator circulating circuitInfo
- Publication number
- JP2000111212A JP2000111212A JP10288150A JP28815098A JP2000111212A JP 2000111212 A JP2000111212 A JP 2000111212A JP 10288150 A JP10288150 A JP 10288150A JP 28815098 A JP28815098 A JP 28815098A JP 2000111212 A JP2000111212 A JP 2000111212A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- absorber
- pipe
- absorbent
- surfactant
- 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.)
- Pending
Links
Classifications
-
- 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]
- Y02B30/62—Absorption based systems
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、吸収冷凍機の吸
収器から不凝縮ガスを取り出して排出する抽気装置に関
し、さらに詳しくは、この抽気装置のタンクに蓄積され
がちな界面活性剤を吸収器に戻すための界面活性剤循環
回路に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bleeding apparatus for extracting and discharging non-condensable gas from an absorber of an absorption refrigerator, and more particularly to a method for removing a surfactant which tends to be accumulated in a tank of the bleeding apparatus. To a surfactant circulation circuit for returning the pressure to
【０００２】[0002]
【従来の技術】吸収冷凍機の吸収器では、気化した冷媒
蒸気が、散布された吸収液に吸収される。この吸収を行
った稀吸収液は、吸収液ポンプによって高温再生器側に
送られる。2. Description of the Related Art In an absorber of an absorption refrigerator, vaporized refrigerant vapor is absorbed by a sprayed absorbent. The diluted absorption liquid that has absorbed the water is sent to the high temperature regenerator by the absorption liquid pump.
【０００３】この吸収器には、内部で発生したり、ある
いは外部から浸入したりする水素ガス、酸素ガス、窒素
ガスなどの不凝縮ガスを取り出し外部に排出する抽気装
置が備えられる。この抽気装置の一例を図３に示す。[0003] This absorber is provided with a bleeding device for extracting non-condensable gas such as hydrogen gas, oxygen gas and nitrogen gas which is generated inside or intrudes from the outside, and discharges the gas to the outside. FIG. 3 shows an example of the bleeding device.
【０００４】すなわち、吸収器１０１の上部には抽気装
置１０３の抽気管１０５が接続され、冷媒蒸気、気化し
た吸収液、および不凝縮ガスを導いて、タンク１０７の
上室１０７Ａに接続される。また、吸収器１０１の底部
には稀吸収液配管１１１が接続され、吸収液ポンプＰに
よって高温再生器側に送られるが、この稀吸収液配管１
１１には分岐管１１３が接続され、稀吸収液がタンク１
０７の頂部から、タンク１０７を上室１０７Ａ、下室１
０７Ｂに区画している隔壁１０９を貫通して設置されて
いるタンク１０７内の内管１１５に勢いよく流し込まれ
る。内管１１５の下端から流れ出た稀吸収液は下室１０
７Ｂの底に溜り、タンク１０７の下部に接続された吸収
液戻り管１１０を通って吸収器１０１に戻される。[0004] That is, the upper part of the absorber 101 is connected to the bleeding pipe 105 of the bleeding device 103, which guides the refrigerant vapor, the vaporized absorbing liquid and the non-condensable gas, and is connected to the upper chamber 107 A of the tank 107. A rare absorbing liquid pipe 111 is connected to the bottom of the absorber 101, and is sent to the high temperature regenerator side by the absorbing liquid pump P.
A branch pipe 113 is connected to 11 and the rare absorbing liquid is stored in the tank 1.
07, the tank 107 is placed in the upper chamber 107A and the lower chamber 1
07B is vigorously poured into the inner pipe 115 in the tank 107 installed through the partition wall 109 defined by 07B. The rare absorbing liquid flowing out from the lower end of the inner pipe 115 is
7B, and is returned to the absorber 101 through the absorbent return pipe 110 connected to the lower part of the tank 107.
【０００５】この稀吸収液の流れの勢いでタンク１０７
の上室１０７Ａは負圧になり、抽気管１０５によって吸
収器１０１の気相部から冷媒蒸気、気化した吸収液、お
よび不凝縮ガスがタンク１０７の上室１０７Ａに積極的
に導かれると共に、内管１０７に引き込まれる。すなわ
ち、エゼクター１１７が構成される。[0005] The tank 107 is moved by the flow of the rare absorbing liquid.
The upper chamber 107A has a negative pressure, and the refrigerant vapor, the vaporized absorbing liquid, and the non-condensable gas are positively guided from the gas phase portion of the absorber 101 to the upper chamber 107A of the tank 107 by the bleed pipe 105, and Pulled into tube 107. That is, the ejector 117 is configured.
【０００６】吸収器１０１からタンク１０７の上室１０
７Ａに積極的に導かれ、内管１１５内に稀吸収液によっ
て引き込まれた冷媒蒸気、気化した吸収液、不凝縮ガス
の内、冷媒蒸気と気化した吸収液とは稀吸収液に溶け込
んで下室１０７Ｂの底に溜まるが、水素ガス、酸素ガ
ス、窒素ガスなどの不凝縮ガスは稀吸収液に溶け込むこ
とができないので、下室１０７Ｂの底に溜まった稀吸収
液の中を浮上して下室１０７Ｂの上部に溜まり、間欠的
に運転される真空ポンプ１１９によって外部に排出され
る。[0006] From the absorber 101 to the upper chamber 10 of the tank 107
7A, the refrigerant vapor and the vaporized absorption liquid, out of the refrigerant vapor, the vaporized absorption liquid, and the non-condensable gas, drawn into the inner pipe 115 by the rare absorption liquid, are dissolved in the diluted absorption liquid. Although accumulated at the bottom of the chamber 107B, non-condensable gases such as hydrogen gas, oxygen gas, and nitrogen gas cannot be dissolved in the diluted absorption liquid. The liquid accumulates in the upper portion of the chamber 107B and is discharged to the outside by a vacuum pump 119 that is operated intermittently.
【０００７】他方、吸収冷凍機では、吸収液に界面活性
剤が添加され、冷媒蒸気が吸収液に吸収されやすいよう
に図られる。そして、吸収器１０１から不凝縮ガスを取
り出す際に、不凝縮ガスに混在して冷媒蒸気や吸収液の
みならず、界面活性剤が取り出されてしまい、タンクに
溜まる。On the other hand, in the absorption refrigerator, a surfactant is added to the absorption liquid so that the refrigerant vapor is easily absorbed by the absorption liquid. When taking out the non-condensable gas from the absorber 101, not only the refrigerant vapor and the absorbing liquid but also the surfactant are taken out in the non-condensable gas and are collected in the tank.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、界面活
性剤は、比重が冷媒や吸収液よりも小さく、また吸収液
などに溶けないので、抽気装置のタンク内で上方に分離
してしまい、吸収液戻り管を通って吸収器に戻されにく
く、従ってタンク内に滞り蓄積されてしまう。よって、
界面活性剤が吸収冷凍機の内部を十分に循環できにくく
なり、吸収冷凍機の全体で不足し、従って、吸収器内で
冷媒蒸気が吸収液に吸収されにくくなり、吸収冷凍機の
冷凍能力の低下を生じる。However, since the surfactant has a specific gravity smaller than that of the refrigerant or the absorbing liquid and is insoluble in the absorbing liquid, it is separated upward in the tank of the bleeding device, and the surfactant is separated. It is difficult to return to the absorber through the return pipe, and thus accumulates and accumulates in the tank. Therefore,
It becomes difficult for the surfactant to sufficiently circulate inside the absorption refrigerator, and the entire absorption refrigerator becomes insufficient.Therefore, the refrigerant vapor becomes difficult to be absorbed by the absorption liquid in the absorber, and the refrigeration capacity of the absorption refrigerator becomes poor. Causes a drop.
【０００９】この発明は、以上の問題点を解決するため
になされたもので、抽気装置のタンク内に界面活性剤が
蓄積しにくく、従って、吸収冷凍機の冷凍能力の低下を
生じにくい吸収冷凍機界面活性剤循環回路を提供するこ
とを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is difficult for the surfactant to accumulate in the tank of the bleeding device, and therefore, the absorption refrigeration capacity of the absorption chiller is not easily reduced. It is an object of the present invention to provide a surfactant circulation circuit.
【００１０】[0010]
【課題を解決するための手段】以上の目的を達成するた
めに、第一の発明は、吸収液に界面活性剤が添加された
吸収冷凍機の吸収器に備えられ抽気管を介して前記吸収
器から不凝縮ガスを取り出し排出する抽気装置と、この
抽気装置に設けられ前記不凝縮ガスに混在して取り出さ
れた前記吸収液や前記界面活性剤を貯めるタンクと、こ
のタンクに貯められた前記吸収液を前記吸収器に戻す吸
収液戻り管と、前記吸収器の底部に接続された稀吸収液
配管の吸収液ポンプよりも下流側から分岐して前記タン
クに接続され稀吸収液を噴出し前記貯められた吸収液お
よび界面活性剤を撹拌する撹拌用管と、を有することを
特徴とする吸収冷凍機界面活性剤循環回路である。Means for Solving the Problems To achieve the above object, a first aspect of the present invention is to provide an absorber for an absorption refrigerator in which a surfactant is added to an absorption solution, and the absorption is provided through a bleed pipe. A bleeding device for extracting and discharging the non-condensable gas from the vessel, a tank provided in the bleeding device for storing the absorbent and the surfactant taken out mixed with the non-condensable gas, and the tank stored in the tank. An absorbent return pipe for returning the absorbent to the absorber; and a branch from the downstream of the absorbent pump of the diluted absorbent pipe connected to the bottom of the absorber, which is connected to the tank and ejects the diluted absorbent. A stirrer for stirring the stored absorbent and surfactant.
【００１１】第二の発明は、前記撹拌用管の先端は、前
記タンク内に貫通し、噴出させる稀吸収液の流速を増す
ためのオリフィスが設けられたことを特徴とする吸収冷
凍機界面活性剤循環回路である。According to a second aspect of the present invention, there is provided an absorption refrigerator having an orifice which is provided with an orifice at an end of the stirring tube for penetrating into the tank and increasing a flow rate of the diluted absorbent to be jetted. It is an agent circulation circuit.
【００１２】[0012]
【発明の実施の形態】（吸収冷凍機の全体回路）この発
明の実施の形態に係る界面活性剤循環回路を備えた吸収
冷凍機の全体回路図を、図２に示す。この実施形態にお
いては、冷媒が水、吸収液が臭化リチュウム（ＬｉＢ
ｒ）水溶液とし、吸収を促進する界面活性剤としてオク
チルアルコールを用いる。DESCRIPTION OF THE PREFERRED EMBODIMENTS (Overall Circuit of Absorption Refrigerator) FIG. 2 shows an overall circuit diagram of an absorption refrigerator equipped with a surfactant circulation circuit according to an embodiment of the present invention. In this embodiment, the refrigerant is water and the absorbing liquid is lithium bromide (LiB).
r) An aqueous solution, using octyl alcohol as a surfactant to promote absorption.
【００１３】すなわち、吸収冷凍機の運転時、高温再生
器４のバーナー５が燃焼し、蒸発吸収器胴１に設けられ
た吸収器３から流れて来た臭化リチウム水溶液（界面活
性剤オクチルアルコールを含む）などの稀吸収液が加熱
され沸騰し、冷媒蒸気（水蒸気）が稀吸収液から分離す
る。これにより稀吸収液が濃縮される。That is, during the operation of the absorption refrigerator, the burner 5 of the high-temperature regenerator 4 burns, and the aqueous solution of lithium bromide (surfactant octyl alcohol) flowing from the absorber 3 provided on the evaporative absorber body 1 is used. ) Is heated and boiled, and refrigerant vapor (water vapor) is separated from the rare absorbing solution. This concentrates the rare absorbing solution.
【００１４】冷媒蒸気は冷媒蒸気管１３を経て、高温胴
１０に設けられた低温再生器１１へ流れる。そして、低
温再生器１１で高温再生器４からの中間吸収液を加熱し
て凝縮した冷媒液が凝縮器１２へ流れる。凝縮器１２で
は低温再生器１１から流れて来た冷媒蒸気が凝縮して、
低温再生器１１から流れて来た冷媒液と共に蒸発器２へ
流下する。The refrigerant vapor flows through a refrigerant vapor pipe 13 to a low-temperature regenerator 11 provided on the high-temperature cylinder 10. Then, the refrigerant liquid obtained by heating and condensing the intermediate absorption liquid from the high-temperature regenerator 4 in the low-temperature regenerator 11 flows to the condenser 12. In the condenser 12, the refrigerant vapor flowing from the low-temperature regenerator 11 is condensed,
The refrigerant flows down to the evaporator 2 together with the refrigerant liquid flowing from the low-temperature regenerator 11.
【００１５】蒸発器２では冷媒ポンプ１８の運転によっ
て、冷媒液が冷媒循環管１７を経て散布される。そし
て、この散布によって冷却されて温度が低下した冷水管
２１の冷水が負荷に供給される。蒸発器２で気化した冷
媒蒸気は吸収器３へ流れ、前記散布された吸収液に吸収
される。In the evaporator 2, the refrigerant liquid is sprayed through the refrigerant circulation pipe 17 by the operation of the refrigerant pump 18. Then, the chilled water in the chilled water pipe 21 whose temperature has been lowered by cooling by the spraying is supplied to the load. The refrigerant vapor vaporized in the evaporator 2 flows to the absorber 3 and is absorbed by the dispersed absorbent.
【００１６】他方、高温再生器４で冷媒蒸気が分離して
濃度が上昇した中間吸収液は中間吸収液管２２、高温熱
交換器８、中間吸収液管２３を経て低温再生器１１へ流
れる。中間吸収液は高温再生器４からの冷媒蒸気が内部
を流れる加熱器１４によって加熱される。そして、中間
吸収液から冷媒蒸気が分離して吸収液の濃度はさらに上
昇する。On the other hand, the intermediate absorption liquid whose concentration has increased due to separation of the refrigerant vapor in the high temperature regenerator 4 flows to the low temperature regenerator 11 via the intermediate absorption liquid pipe 22, the high temperature heat exchanger 8, and the intermediate absorption liquid pipe 23. The intermediate absorbing liquid is heated by the heater 14 in which the refrigerant vapor from the high-temperature regenerator 4 flows. Then, the refrigerant vapor is separated from the intermediate absorbing liquid, and the concentration of the absorbing liquid further increases.
【００１７】低温再生器１１で加熱濃縮された濃吸収液
は濃吸収液管２５へ流入して低温熱交換器７及び濃吸収
液管２６を経て吸収器３へ流れ、散布装置３０から冷却
水管２９の上に滴下する。そして、蒸発器２から入って
くる冷媒蒸気（水蒸気）を吸収して吸収液濃度が下が
る。吸収液濃度の低くなった吸収液は、稀吸収液配管６
の途中に設けられた吸収液ポンプＰの駆動力により、低
温熱交換器７および高温熱交換器８で予熱され、高温再
生器４に流入する。The concentrated absorbent heated and concentrated in the low-temperature regenerator 11 flows into the concentrated absorbent pipe 25, flows through the low-temperature heat exchanger 7 and the concentrated absorbent pipe 26 to the absorber 3, and flows from the spraying device 30 to the cooling water pipe. Drop on 29. Then, the refrigerant vapor (water vapor) entering from the evaporator 2 is absorbed to lower the concentration of the absorbing liquid. The absorbent whose concentration has become low is supplied to the diluted absorbent piping 6
Is preheated by the low-temperature heat exchanger 7 and the high-temperature heat exchanger 8 by the driving force of the absorbent pump P provided in the middle of the process, and flows into the high-temperature regenerator 4.
【００１８】（抽気装置）この吸収器３には、吸収器３
の内部で発生したり、あるいは外部から浸入したりする
水素ガス、酸素ガス、窒素ガスなどの不凝縮ガスを取り
出し外部に排出する抽気装置４１が備えられる。(Bleeding Device) The absorber 3 includes an absorber 3
A bleeding device 41 is provided for extracting non-condensable gas such as hydrogen gas, oxygen gas, and nitrogen gas which is generated inside or intrudes from the outside, and discharged to the outside.
【００１９】この抽気装置４１を図１に拡大して示す。
すなわち、吸収器３の上部には抽気装置４１の抽気管４
３が接続され、タンク４５の上室４５Ａに連通する。タ
ンク４５の下室４５Ｂには吸収液戻り管４７が接続さ
れ、吸収器３に連通する。FIG. 1 shows the bleeding device 41 in an enlarged manner.
That is, the bleed pipe 4 of the bleed device 41 is provided above the absorber 3.
3 is connected and communicates with the upper chamber 45A of the tank 45. An absorbent return pipe 47 is connected to the lower chamber 45B of the tank 45, and communicates with the absorber 3.
【００２０】また、吸収器３の底部に接続される稀吸収
液配管６には、吸収液ポンプＰよりも下流側に、分岐管
４９が接続される。この分岐管４９の他端はタンク４５
の上室４５Ａに連通する。分岐管４９の開口端真下には
隔壁５０を貫通している内管５１の上端が開口し、この
内管５１と分岐管４９の間でエゼクター５３が構成され
る。内管５１の開口した下端は、タンク４５の下室４５
Ｂに開口する。また、この下室４５Ｂの上部には、真空
ポンプ５５が接続される。A branch pipe 49 is connected to the diluted absorbent pipe 6 connected to the bottom of the absorber 3 on the downstream side of the absorbent pump P. The other end of this branch pipe 49 is connected to a tank 45
To the upper chamber 45A. Immediately below the opening end of the branch pipe 49, the upper end of an inner pipe 51 penetrating the partition wall 50 is opened, and an ejector 53 is formed between the inner pipe 51 and the branch pipe 49. The opened lower end of the inner pipe 51 is connected to the lower chamber 45 of the tank 45.
Open to B A vacuum pump 55 is connected to the upper part of the lower chamber 45B.
【００２１】（界面活性剤循環回路）分岐管４９の途中
には、撹拌用管５７が更に分岐し、バルブ５９を介し
て、タンク４５の下室４５Ｂ内に貫通して接続する。こ
の貫通した先端には、オリフィス６１が設けられてい
る。この先端の位置は、下室４５Ｂ内で吸収液６３や冷
媒（下室４５Ｂ内では吸収液に吸収されている）から分
離した界面活性剤６５の直ぐ上に、位置するのが望まし
い。(Surfactant Circulation Circuit) In the middle of the branch pipe 49, a stirring pipe 57 is further branched, and is connected through a valve 59 into the lower chamber 45B of the tank 45. An orifice 61 is provided at the penetrated tip. The position of this tip is desirably located immediately above the surfactant 65 separated from the absorbing liquid 63 and the refrigerant (absorbed by the absorbing liquid in the lower chamber 45B) in the lower chamber 45B.
【００２２】（抽気装置および界面活性剤循環回路の動
作）分岐管４９を通って、吸収液ポンプＰからの稀吸収
液がタンク４５の頂部から勢いよく内部に流し込まれ
る。この稀吸収液は、流し込まれた直後にタンク４５内
部の内管５１に受けられる。この稀吸収液の流れの勢い
でタンク４５の上室４５Ａは負圧になる。すなわちエゼ
クター５３が機能する。(Operation of Bleeding Apparatus and Surfactant Circulation Circuit) The dilute absorbent from the absorbent pump P is rushed into the tank 45 from the top through the branch pipe 49. The diluted absorbing liquid is received by the inner pipe 51 inside the tank 45 immediately after being poured. The pressure of the upper chamber 45A of the tank 45 becomes negative due to the momentum of the flow of the diluted absorbing liquid. That is, the ejector 53 functions.
【００２３】吸収器３の上部では、不凝縮ガスのみなら
ず冷媒蒸気、気化した吸収液、さらには気化した界面活
性剤も存在する。これらのガスは、抽気管４３を通っ
て、エゼクター５３の負圧により、タンク４５の上室４
５Ａへ導かれる。In the upper part of the absorber 3, not only non-condensable gas but also refrigerant vapor, vaporized absorbing liquid, and vaporized surfactant are present. These gases pass through the bleed pipe 43, and are supplied to the upper chamber 4 of the tank 45 by the negative pressure of the ejector 53.
It is led to 5A.
【００２４】タンク４５の上室４５Ａに導かれ、内管４
５に吸収液によって引き込まれた前記ガスの内、冷媒蒸
気と気化した吸収液は下室４５Ｂの底に溜まった吸収液
６３に溶け込み吸収され、気化した界面活性剤は吸収液
６３により冷却されて凝縮し、吸収液６３より比重が小
さいので吸収液６３から分離してその上部に溜まる。一
方、不凝縮ガスは吸収液６３に溶け込むことができない
ので、吸収液６３の中を浮上して下室４５Ｂの上部に溜
まる。The tank 45 is led to the upper chamber 45A, and the inner pipe 4
5, the refrigerant vapor and the vaporized absorbent among the gas drawn into the absorbent 5 are dissolved and absorbed in the absorbent 63 collected at the bottom of the lower chamber 45B, and the vaporized surfactant is cooled by the absorbent 63. Since it condenses and has a specific gravity smaller than that of the absorbing solution 63, it is separated from the absorbing solution 63 and accumulated on the upper portion thereof. On the other hand, since the non-condensable gas cannot be dissolved in the absorbing solution 63, it floats in the absorbing solution 63 and accumulates in the upper portion of the lower chamber 45B.
【００２５】冷媒蒸気を吸収してタンク４５の下室４５
Ｂに溜まった吸収液６３は、吸収液戻り管４７を通って
吸収器３に戻され、下室４５Ｂの上部に溜まった不凝縮
ガスは間欠的に運転される真空ポンプ５５によって外部
に排出される。The lower chamber 45 of the tank 45 absorbs the refrigerant vapor.
The absorbent 63 accumulated in B is returned to the absorber 3 through the absorbent return pipe 47, and the non-condensable gas accumulated in the upper part of the lower chamber 45B is discharged outside by the intermittently operated vacuum pump 55. You.
【００２６】一方、吸収液６３から分離され、その上部
に溜まる界面活性剤６５は次第にその量が増えるので、
定期的にバルブ５９が手動または自動で開けられ、分岐
管４９および撹拌用管５７を通った稀吸収液が、先端の
オリフィス６１から、大きな流速で噴出される。この噴
出により、界面活性剤６５は吸収液６３と撹拌され、混
濁した状態になる。よって、界面活性剤６５は吸収液６
３と共に、吸収液戻り管４７を通って吸収器３に戻さ
れ、再び、吸収冷凍機の回路を循環できるようになる。
バルブ５９を開ける頻度は、たとえば月１回程度でよ
い。On the other hand, the amount of the surfactant 65 separated from the absorbing solution 63 and accumulated on the upper portion thereof gradually increases.
Periodically, the valve 59 is manually or automatically opened, and the diluted absorbent passing through the branch pipe 49 and the stirring pipe 57 is jetted from the orifice 61 at the tip at a large flow rate. Due to this ejection, the surfactant 65 is stirred with the absorbing liquid 63 and becomes turbid. Therefore, the surfactant 65 is used as the absorbing solution 6
Along with 3, the liquid is returned to the absorber 3 through the absorbing liquid return pipe 47, and the circuit of the absorption refrigerator can be circulated again.
The frequency of opening the valve 59 may be, for example, about once a month.
【００２７】（他の実施形態）以上の実施形態では、界
面活性剤としてオクチルアルコールを用いたが、他の実
施形態では他の界面活性剤、例えば２−エチルヘキサノ
ートを用いることが可能である。(Other Embodiments) In the above embodiments, octyl alcohol was used as a surfactant. However, in other embodiments, other surfactants, for example, 2-ethylhexanote can be used. .
【００２８】また、以上の実施形態では、冷媒が水で、
吸収液が臭化リチュウム水溶液であったが、他の実施形
態では、冷媒と吸収液の他の組み合わせを採用できる。
例えば、冷媒がアンモニアで、吸収液が水であるとする
ことも可能である。In the above embodiment, the refrigerant is water,
Although the absorbing solution was an aqueous solution of lithium bromide, other embodiments may employ other combinations of refrigerant and absorbing solution.
For example, it is possible that the refrigerant is ammonia and the absorbing liquid is water.
【００２９】また、以上の実施形態では、定期的にバル
ブ５９が手動で開けられるものとしたが、他の実施形態
では、手動ではなくタイマー付きの電磁バルブを用い、
自動的に行うものとしても良い。In the above embodiment, the valve 59 is manually opened periodically. In other embodiments, an electromagnetic valve with a timer is used instead of the manual operation.
It may be performed automatically.
【００３０】[0030]
【発明の効果】以上説明したように、第一の発明によれ
ば、撹拌用管が吸収液ポンプからの稀吸収液を、抽気装
置のタンクに噴出し、タンクに貯められた吸収液および
界面活性剤を撹拌するので、界面活性剤は、タンク内に
蓄積されてしまうのを防止でき、吸収液と共に吸収液戻
り管を通って吸収器に戻されることになり、吸収冷凍機
の内部を十分に循環でき、ひいては吸収冷凍機の冷凍能
力の低下を防止できる。As described above, according to the first aspect of the invention, the stirring pipe blows out the dilute absorbing liquid from the absorbing liquid pump into the tank of the bleeding device, and the absorbing liquid and the interface stored in the tank are separated. Since the activator is agitated, the surfactant can be prevented from accumulating in the tank, and is returned to the absorber through the absorbent return pipe together with the absorbent, so that the inside of the absorption refrigerator can be sufficiently cooled. And the reduction of the refrigeration capacity of the absorption refrigerator can be prevented.
【００３１】また、第二の発明によれば、さらに、撹拌
用管の先端にオリフィスが設けられることから、噴出さ
せる稀吸収液の流速を増すことができ、より十分に撹拌
が行える。Further, according to the second aspect of the present invention, since the orifice is provided at the tip of the stirring tube, the flow rate of the diluted absorbent to be jetted can be increased, and the stirring can be performed more sufficiently.
【図１】この発明の一実施形態に係る界面活性剤循環回
路が設けられた吸収冷凍機の抽気装置を示す図である。FIG. 1 is a diagram showing an extraction device of an absorption refrigerator provided with a surfactant circulation circuit according to an embodiment of the present invention.
【図２】図１の界面活性剤循環回路を備えた吸収冷凍機
の全体回路図である。FIG. 2 is an overall circuit diagram of an absorption refrigerator including the surfactant circulation circuit of FIG.
【図３】従来の吸収冷凍機の抽気装置を示す図である。FIG. 3 is a diagram showing a conventional bleeding device for an absorption refrigerator.
３ 吸収器 ６ 稀吸収液配管 ４１ 抽気装置 ４３ 抽気管 ４５ タンク ４７ 吸収液戻り管 ５７ 撹拌用管 ６３ 吸収液 ６５ 界面活性剤 Ｐ 吸収液ポンプ DESCRIPTION OF SYMBOLS 3 Absorber 6 Dilute absorption liquid piping 41 Extraction device 43 Extraction tube 45 Tank 47 Absorption liquid return pipe 57 Stirring tube 63 Absorption liquid 65 Surfactant P Absorption liquid pump
Claims (2)
凍機の吸収器に備えられ抽気管を介して前記吸収器から
不凝縮ガスを取り出し排出する抽気装置と、この抽気装
置に設けられ前記不凝縮ガスに混在して取り出された前
記吸収液や前記界面活性剤を貯めるタンクと、このタン
クに貯められた前記吸収液を前記吸収器に戻す吸収液戻
り管と、前記吸収器の底部に接続された稀吸収液配管の
吸収液ポンプよりも下流側から分岐して前記タンクに接
続され稀吸収液を噴出し前記貯められた吸収液および界
面活性剤を撹拌する撹拌用管と、を有することを特徴と
する吸収冷凍機界面活性剤循環回路。1. An extraction device provided in an absorber of an absorption refrigerator in which a surfactant is added to an absorption liquid, for extracting and discharging non-condensable gas from the absorber through an extraction tube, and provided in the extraction device. A tank for storing the absorbing solution and the surfactant taken out mixedly with the non-condensable gas, an absorbing solution return pipe for returning the absorbing solution stored in the tank to the absorber, and a bottom portion of the absorber A stirring pipe that branches from the downstream of the absorbent pump of the diluted absorbent pipe connected to the tank, is connected to the tank, ejects the diluted absorbent, and stirs the stored absorbent and surfactant. A surfactant circulation circuit for an absorption refrigerator.
貫通し、噴出させる稀吸収液の流速を増すためのオリフ
ィスが設けられたことを特徴とする請求項１に記載の吸
収冷凍機界面活性剤循環回路。2. The absorption refrigerator according to claim 1, wherein an end of the stirring tube is provided with an orifice that penetrates into the tank and increases a flow rate of the diluted absorbent to be ejected. Surfactant circulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10288150A JP2000111212A (en) | 1998-10-09 | 1998-10-09 | Absorption refrigerating machine interface activator circulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10288150A JP2000111212A (en) | 1998-10-09 | 1998-10-09 | Absorption refrigerating machine interface activator circulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000111212A true JP2000111212A (en) | 2000-04-18 |
Family
ID=17726459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10288150A Pending JP2000111212A (en) | 1998-10-09 | 1998-10-09 | Absorption refrigerating machine interface activator circulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000111212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007006289A1 (en) * | 2005-07-11 | 2007-01-18 | Technische Universität Berlin | Method for discharging a gas from a heat pump, and heat pump |
| WO2010105613A2 (en) * | 2009-03-20 | 2010-09-23 | Technische Universitaet Berlin | Heat exchanger unit and thermotechnical system |
-
1998
- 1998-10-09 JP JP10288150A patent/JP2000111212A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007006289A1 (en) * | 2005-07-11 | 2007-01-18 | Technische Universität Berlin | Method for discharging a gas from a heat pump, and heat pump |
| WO2010105613A2 (en) * | 2009-03-20 | 2010-09-23 | Technische Universitaet Berlin | Heat exchanger unit and thermotechnical system |
| WO2010105613A3 (en) * | 2009-03-20 | 2011-03-10 | Technische Universitaet Berlin | Heat exchanger unit and thermotechnical system |
| US10801782B2 (en) | 2009-03-20 | 2020-10-13 | Technische Universität Berlin | Heat exchanger unit and thermotechnical system |
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