JP2654127B2 - Absorption refrigerator - Google Patents
Absorption refrigeratorInfo
- Publication number
- JP2654127B2 JP2654127B2 JP27045188A JP27045188A JP2654127B2 JP 2654127 B2 JP2654127 B2 JP 2654127B2 JP 27045188 A JP27045188 A JP 27045188A JP 27045188 A JP27045188 A JP 27045188A JP 2654127 B2 JP2654127 B2 JP 2654127B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- evaporator
- condenser
- tank
- pipe
- 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.)
- Expired - Fee Related
Links
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は冷媒液を凝縮器から蒸発器へ送る吸収冷凍機
に関する。The present invention relates to an absorption refrigerator for sending a refrigerant liquid from a condenser to an evaporator.
（ロ）従来の技術 例えば特公昭61−49588号公報には、凝縮器からの冷
媒を貯溜する冷媒貯室を設け、この冷媒貯室と冷媒ポン
プの吐出側とをチェッキ弁を介して接続し、冷媒ポンプ
の運転中はチェッキ弁が閉じており、冷媒貯室からオー
バーフローした冷媒を冷媒流下管を介して蒸発器へ流
し、冷媒ポンプの運転停止時には冷媒貯室の冷媒をチェ
ッキ弁を介して蒸発器へ流し、溶液の稀釈濃度を下げ、
溶液の濃度調整を行うようにした吸収冷凍機が示されて
いる。(B) Prior art For example, Japanese Patent Publication No. 61-49588 discloses a refrigerant storage chamber for storing refrigerant from a condenser, and connects the refrigerant storage chamber and the discharge side of the refrigerant pump via a check valve. During the operation of the refrigerant pump, the check valve is closed, the refrigerant overflowing from the refrigerant storage chamber flows to the evaporator through the refrigerant downflow pipe, and when the operation of the refrigerant pump is stopped, the refrigerant in the refrigerant storage chamber passes through the check valve. Pour into the evaporator to reduce the dilution concentration of the solution,
An absorption refrigerator adapted to adjust the concentration of a solution is shown.
（ハ）発明が解決しようとする課題 上記吸収冷凍機において、溶液濃度調整を行うために
チェッキ弁が必要であり、又、凝縮器から蒸発器への冷
媒流下管にはシール構造が施されておらず、凝縮器から
蒸発器への冷媒蒸気のまき込みが発生する虞れがあり、
冷凍損失が発生する虞れがあった。さらに、凝縮器から
蒸発器へ流れた冷媒の温度が高いため（例えば40℃）フ
ラッシュが発生する虞れがあった。(C) Problems to be Solved by the Invention In the absorption refrigerator described above, a check valve is required to adjust the solution concentration, and a sealing structure is provided on a refrigerant downflow pipe from the condenser to the evaporator. No, there is a risk that refrigerant vapor will be introduced from the condenser to the evaporator,
Refrigeration loss may occur. Further, since the temperature of the refrigerant flowing from the condenser to the evaporator is high (for example, 40 ° C.), there is a possibility that flash occurs.
本発明は、チェッキ弁等を必要とせずに、吸収液の希
釈を行い、さらに凝縮器から蒸発器への冷媒蒸気のまき
込みを防止すると共に、フラッシュを低減することを目
的とする。SUMMARY OF THE INVENTION It is an object of the present invention to dilute an absorbing liquid without requiring a check valve or the like, to prevent refrigerant vapor from being introduced from a condenser to an evaporator, and to reduce flash.
（ニ）課題を解決するための手段 本発明は上記課題を解決するために、凝縮器（３）、
蒸発器（４）、吸収器（５）、及び再生器（１），
（２）をそれぞれ配管接続し、蒸発器（４）に設けられ
た冷媒液溜（4A）に滞溜した冷媒液を循環させる冷媒ポ
ンプ（20）を有した吸収冷凍機において、蒸発器（４）
の冷媒液溜より高い位置に設けられ冷媒液を貯溜する冷
媒タンク（Ｔ）と、冷媒タンク（Ｔ）と凝縮器（３）と
の間に設けられ途中にＵシールが形成された凝縮器側冷
媒管（16）と、冷媒タンク（Ｔ）と冷媒ポンプ（20）の
吐出側との間に設けられたポンプ側冷媒管（17）と、冷
媒タンク（Ｔ）と蒸発器（４）との間に設けられた冷媒
液供給管（19）と、冷媒タンク（Ｔ）と蒸発器（４）の
気相部との間に設けられた均圧管（24）とを備えた吸収
冷凍機を提供するものである。(D) Means for Solving the Problems The present invention provides a condenser (3),
Evaporator (4), absorber (5), and regenerator (1),
(2) is connected to each of the pipes, and in an absorption refrigerator having a refrigerant pump (20) for circulating the refrigerant liquid accumulated in a refrigerant liquid reservoir (4A) provided in the evaporator (4), )
A refrigerant tank (T) provided at a position higher than the refrigerant liquid reservoir for storing the refrigerant liquid, and a condenser side provided between the refrigerant tank (T) and the condenser (3) and having a U seal formed in the middle thereof The refrigerant pipe (16), the pump-side refrigerant pipe (17) provided between the refrigerant tank (T) and the discharge side of the refrigerant pump (20), the refrigerant tank (T) and the evaporator (4) Provided is an absorption refrigerator including a refrigerant liquid supply pipe (19) provided therebetween, and a pressure equalizing pipe (24) provided between the refrigerant tank (T) and a gas phase portion of the evaporator (4). Is what you do.
又、凝縮器（３）、蒸発器（４）、この蒸発器（４）
に隣接した吸収器（５）、及び再生器（１），（２）を
それぞれ配管接続し、蒸発器（４）の下部に設けられた
冷媒液溜（4A）に滞溜した冷媒液を循環させる冷媒ポン
プ（20）を有した吸収冷凍機において、蒸発器（４）の
冷媒液溜（4A）より高い位置に設けられ冷媒液を貯溜す
る冷媒タンク（Ｔ）と、冷媒タンク（Ｔ）と凝縮器
（３）との間に設けられ間にＵシールが形成された凝縮
器側冷媒管（16）と、冷媒タンク（Ｔ）と冷媒ポンプ
（20）の吐出側との間に設けられたポンプ側冷媒管（1
7）と、冷媒タンク（Ｔ）と蒸発器（４）との間に設け
らた冷媒液供給管（19）と、冷媒タンク（Ｔ）と蒸発器
（４）の気相部との間に設けられた均圧管（24）とを備
え、冷媒液溜（4A）からオーバーフローした冷媒液を吸
収器（５）へ流すようにした吸収式冷凍機を提供するも
のである。Also, the condenser (3), the evaporator (4), and the evaporator (4)
The absorbent (5) and the regenerators (1) and (2) adjacent to the evaporator (4) are connected by pipes, respectively, and the refrigerant liquid accumulated in the refrigerant liquid reservoir (4A) provided below the evaporator (4) is circulated. In the absorption refrigerator having the refrigerant pump (20) to be operated, a refrigerant tank (T) provided at a position higher than the refrigerant liquid reservoir (4A) of the evaporator (4) and storing the refrigerant liquid; A condenser-side refrigerant pipe (16) provided between the condenser (3) and having a U seal formed therebetween, and provided between the refrigerant tank (T) and the discharge side of the refrigerant pump (20). Pump side refrigerant pipe (1
7), a refrigerant liquid supply pipe (19) provided between the refrigerant tank (T) and the evaporator (4), and between the refrigerant tank (T) and the gas phase of the evaporator (4). The present invention is to provide an absorption refrigerator having an equalizing pipe (24) provided and allowing the refrigerant liquid overflowing from the refrigerant liquid reservoir (4A) to flow to the absorber (5).
（ホ）作用 吸収冷凍機の運転時、冷媒液が凝縮器（３）から凝縮
器側冷媒管（16）を介して冷媒タンク（Ｔ）へ流れ、冷
媒タンク（Ｔ）に冷媒液が貯溜され、凝縮器（３）と蒸
発器（４）との間は冷媒液により確実にシールされてお
り、凝縮器（３）から蒸発器（４）への冷媒蒸気のまき
込みが防止され、冷媒蒸気の発生による冷凍損失を防止
することが可能になる。又、負荷が小さい部分負荷時、
又は低冷却水運転時等に冷媒液の循環量が増加し、冷媒
ポンプ（20）の吐出圧力が減少した場合には冷媒タンク
（Ｔ）の冷媒液が補充され、冷媒循環量を増加すること
が可能になる。さらに、凝縮器（３）と蒸発器（４）と
から流出した冷媒液が凝縮器側冷媒管（16）とポンプ側
冷媒管（17）とを介して冷媒タンク（Ｔ）へ流れ、冷媒
タンク（Ｔ）にて混ざり、冷媒タンク（Ｔ）内の冷媒液
温度は凝縮器（３）の冷媒液温度より低くなり、温度の
低い冷媒液が冷媒液供給管（19）を介して冷媒タンク
（Ｔ）から蒸発器へ流れるため、冷媒液のフラッシュを
低減することが可能になる。又、冷媒タンク（Ｔ）と凝
縮器（４）との圧力が均圧管（24）により等しくなり、
冷媒液を冷媒タンク（Ｔ）から蒸発器（４）へスムーズ
に流すことが可能になり、又、冷媒タンク（Ｔ）に発生
した不凝縮ガスが均圧管（24）を介して蒸発器（４）へ
流れ、不凝縮ガスの冷媒タンク（Ｔ）への滞溜を回避す
ることが可能になる。(E) Function During operation of the absorption refrigerator, the refrigerant liquid flows from the condenser (3) to the refrigerant tank (T) via the condenser-side refrigerant pipe (16), and the refrigerant liquid is stored in the refrigerant tank (T). The space between the condenser (3) and the evaporator (4) is securely sealed by the refrigerant liquid, so that the refrigerant vapor is prevented from being introduced from the condenser (3) into the evaporator (4), and the refrigerant vapor It is possible to prevent refrigeration loss due to the generation of. When the load is small and the load is small,
Or, when the circulation amount of the refrigerant liquid increases during low cooling water operation and the discharge pressure of the refrigerant pump (20) decreases, the refrigerant liquid in the refrigerant tank (T) is replenished, and the refrigerant circulation amount is increased. Becomes possible. Further, the refrigerant liquid flowing out of the condenser (3) and the evaporator (4) flows to the refrigerant tank (T) via the condenser-side refrigerant pipe (16) and the pump-side refrigerant pipe (17). (T), the refrigerant liquid temperature in the refrigerant tank (T) becomes lower than the refrigerant liquid temperature in the condenser (3), and the low-temperature refrigerant liquid is supplied through the refrigerant liquid supply pipe (19). From T) to the evaporator, it is possible to reduce the flush of the refrigerant liquid. The pressure in the refrigerant tank (T) and the pressure in the condenser (4) are equalized by the pressure equalizing pipe (24),
The refrigerant liquid can smoothly flow from the refrigerant tank (T) to the evaporator (4), and the non-condensable gas generated in the refrigerant tank (T) is discharged through the pressure equalizing pipe (24). ), And the accumulation of the non-condensable gas in the refrigerant tank (T) can be avoided.
さらに、吸収冷凍機の停止時には、冷媒タンク（Ｔ）
内の冷媒液がポンプ側冷媒管（17）、冷媒ポンプ（20）
等を介して蒸発器（４）へ流れ、蒸発器（４）の冷媒液
溜（4A）からオーバーフローした冷媒液が隣の吸収器
（３）へ流れるため、吸収液の稀釈濃度を低くすること
が可能になる。Further, when the absorption refrigerator is stopped, the refrigerant tank (T)
Refrigerant liquid inside is pump side refrigerant pipe (17), refrigerant pump (20)
Flow to the evaporator (4) through the like, and the refrigerant liquid overflowing from the refrigerant liquid reservoir (4A) of the evaporator (4) flows to the next absorber (3), so that the dilution concentration of the absorbent is reduced. Becomes possible.
（ヘ）実施例 以下、本発明の一実施例を図面に基づいて詳細に説明
する。(F) Example Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図に示したものは二重効用吸収冷凍機であり、冷
媒に水（H2o）を、吸収剤（吸収液）に臭化リチウム（L
iBr）水溶液を使用したものである。FIG. 1 shows a double-effect absorption refrigerator having water (H 2 o) as a refrigerant and lithium bromide (L) as an absorbent (absorbent).
iBr) using an aqueous solution.
第１図において、（１）はガスバーナ（1B）を備えた
高温再生器、（２）は低温再生器、（３）は凝縮器、
（４）は蒸発器、（５）は吸収器、（６）は低温熱交換
器、（７）は高温熱交換器、（Ｔ）は冷媒タンク、
（８）ないし（12）は吸収液配管、（13）は冷媒蒸気
管、（15）は再生器ポンプ、（16）は凝縮器側冷媒管、
（17）はポンプ側冷媒管、（18）は冷媒循環管、（19）
は冷媒液供給管、（20）は冷媒ポンプ、（22）は冷水配
管、（23）は冷却水配管、（24）は均圧管であり、それ
ぞれは第１図に示したように配管接続されている。ここ
で、第１図に示したように、凝縮器側冷媒管（16）は凝
縮器（３）と冷媒タンク（Ｔ）の底壁との間に接続さ
れ、凝縮器側冷媒管（16）の途中にはＵシール（16A）
が形成されている。又、ポンプ側冷媒管（17）は冷媒ポ
ンプ（20）の吐出側と冷媒タンク（Ｔ）との間に接続さ
れ、冷媒循環管（18）は蒸発器（４）下部の冷媒液溜
（4A）と上部の散布用トレイ（4B）との間に接続されて
いる。さらに冷媒液供給管（19）は冷媒タンク（Ｔ）の
上部と蒸発器（４）の気相部との間に接続されている。
又、均圧管（24）は冷媒タンク（Ｔ）の上部と蒸発器
（４）の気相部との間に接続されている。そして、冷媒
タンク（Ｔ）と蒸発器（４）の気相部とは冷媒液供給管
（19）により連通している。In FIG. 1, (1) is a high-temperature regenerator equipped with a gas burner (1B), (2) is a low-temperature regenerator, (3) is a condenser,
(4) is an evaporator, (5) is an absorber, (6) is a low-temperature heat exchanger, (7) is a high-temperature heat exchanger, (T) is a refrigerant tank,
(8) to (12) are absorption liquid piping, (13) is a refrigerant vapor pipe, (15) is a regenerator pump, (16) is a condenser side refrigerant pipe,
(17) is the pump side refrigerant pipe, (18) is the refrigerant circulation pipe, (19)
Is a refrigerant liquid supply pipe, (20) is a refrigerant pump, (22) is a cold water pipe, (23) is a cooling water pipe, and (24) is a pressure equalizing pipe, each of which is connected as shown in FIG. ing. Here, as shown in FIG. 1, the condenser-side refrigerant pipe (16) is connected between the condenser (3) and the bottom wall of the refrigerant tank (T), and is connected to the condenser-side refrigerant pipe (16). In the middle of the U-seal (16A)
Are formed. The pump-side refrigerant pipe (17) is connected between the discharge side of the refrigerant pump (20) and the refrigerant tank (T), and the refrigerant circulation pipe (18) is connected to the refrigerant reservoir (4A ) And the upper spray tray (4B). Further, the refrigerant liquid supply pipe (19) is connected between the upper part of the refrigerant tank (T) and the gas phase of the evaporator (4).
The pressure equalizing pipe (24) is connected between the upper part of the refrigerant tank (T) and the gas phase of the evaporator (4). The refrigerant tank (T) and the gas phase of the evaporator (4) communicate with each other by a refrigerant liquid supply pipe (19).
上記吸収冷凍機の運転時には、高温再生器（１）にて
発生した冷媒蒸気は冷媒蒸気管（13）を流れ、低温再生
器（２）にて吸収液と熱交換する。そして低温再生器
（２）にて吸収液から気化した冷媒蒸気が凝縮器（３）
へ流れ、冷却水配管（23）を流れる冷却水により冷却さ
れ凝縮する。又、冷媒蒸気管（13）を流れる冷媒蒸気も
低温再生器（２）での放熱により凝縮すると共に、残っ
た冷媒蒸気も凝縮器（３）にて凝縮する。During the operation of the absorption refrigerator, the refrigerant vapor generated in the high-temperature regenerator (1) flows through the refrigerant vapor pipe (13) and exchanges heat with the absorbent in the low-temperature regenerator (2). The refrigerant vapor vaporized from the absorbing liquid in the low-temperature regenerator (2) is converted into a condenser (3)
And cooled by the cooling water flowing through the cooling water pipe (23) to condense. Further, the refrigerant vapor flowing through the refrigerant vapor pipe (13) is condensed by the heat radiation in the low-temperature regenerator (2), and the remaining refrigerant vapor is also condensed in the condenser (3).
そして、凝縮器（３）から温度が例えば略40℃の冷媒
液が凝縮器側冷媒管（16）を介して冷媒タンク（Ｔ）へ
流れる。又、蒸発器（４）の冷媒液溜（4A）に溜り温度
が数度の冷媒液が冷媒ポンプ（20）により吸引されて吐
出する。冷媒ポンプ（20）から吐出した冷媒液のうちほ
とんどは冷媒循環管（18）を介して散布用トレイ（4B）
へ流れ、散布される。そして、蒸発器（４）にて気化し
た冷媒蒸気は吸収器（５）へ流れ吸収液に吸収される。
又、冷媒ポンプ（20）から吐出した冷媒液の一部はタン
ク側冷媒管（17）を介して冷媒タンク（Ｔ）へ流れ、凝
縮器（３）から流れて来た冷媒液と混ざる。そして、冷
媒タンク（Ｔ）からオーバーフローした例えば20〜30℃
の冷媒液が冷媒液供給管（19）を介して蒸発器（４）へ
流れる。このとき、吸収促進剤として添加されているア
ルコールがまずオーバーフローして流れ、冷媒タンク
（Ｔ）へのアルコールの滞溜が防止される。又、冷媒タ
ンク（Ｔ）の上部気相部と蒸発器（４）の気相部とは均
圧管（24）により連通しており、冷媒タンク（Ｔ）の圧
力は蒸発器（４）の圧力と略等しい数mmHgになる。又、
凝縮器（３）の圧力は数十mmHgである。Then, a refrigerant liquid having a temperature of, for example, approximately 40 ° C. flows from the condenser (3) to the refrigerant tank (T) via the condenser-side refrigerant pipe (16). In addition, the refrigerant liquid having a temperature of several degrees that has accumulated in the refrigerant liquid reservoir (4A) of the evaporator (4) is sucked and discharged by the refrigerant pump (20). Most of the refrigerant liquid discharged from the refrigerant pump (20) passes through the refrigerant circulation pipe (18), and the spray tray (4B)
And sprayed. Then, the refrigerant vapor vaporized in the evaporator (4) flows to the absorber (5) and is absorbed by the absorbing liquid.
A part of the refrigerant liquid discharged from the refrigerant pump (20) flows to the refrigerant tank (T) via the tank-side refrigerant pipe (17), and mixes with the refrigerant liquid flowing from the condenser (3). Then, for example, 20 to 30 ° C. which overflows from the refrigerant tank (T)
Flows into the evaporator (4) via the refrigerant liquid supply pipe (19). At this time, the alcohol added as the absorption promoter first overflows and flows, thereby preventing the accumulation of alcohol in the refrigerant tank (T). The upper gas phase portion of the refrigerant tank (T) and the gas phase portion of the evaporator (4) communicate with each other by an equalizing pipe (24), and the pressure of the refrigerant tank (T) is the pressure of the evaporator (4). MmHg, which is almost equal to or,
The pressure of the condenser (3) is several tens mmHg.
上記本発明の実施例によれば、凝縮器（３）と蒸発器
（４）との間の冷媒液流路に冷媒タンク（Ｔ）が設けら
れ、凝縮器（３）と蒸発器（４）との間には常に冷媒液
が存在しているため、吸収冷凍機の運転時、凝縮器
（３）と蒸発器（４）との間のガスシールが確実にな
り、凝縮器（３）から蒸発器（４）への冷媒蒸気のまき
込みを防止することができ、冷凍損失を防止することが
できる。According to the embodiment of the present invention, the refrigerant tank (T) is provided in the refrigerant liquid flow path between the condenser (3) and the evaporator (4), and the condenser (3) and the evaporator (4) are provided. Since the refrigerant liquid always exists between the condenser (3) and the condenser (3), the gas seal between the condenser (3) and the evaporator (4) is ensured during the operation of the absorption refrigerator. Refrigerant vapor can be prevented from being introduced into the evaporator (4), and refrigeration loss can be prevented.
又、負荷が小さい部分負荷時、又は低冷却水運転時等
に冷媒液の循環量が増加し、蒸発器（４）の冷媒液溜
（4A）の冷媒液量が減少し、冷媒ポンプ（20）の吐出圧
力が減少したときには、冷媒タンク（Ｔ）からタンク側
冷媒管（17）を破線矢印にて示したように冷媒液が流れ
る。このため、冷媒タンク（Ｔ）から流出した冷媒液に
より冷媒液循環量を増加でき、部分負荷時、又は低冷却
水運転時等に対応できる。Further, the circulation amount of the refrigerant liquid increases at a partial load with a small load or at the time of low cooling water operation, and the refrigerant liquid amount of the refrigerant reservoir (4A) of the evaporator (4) decreases. When the discharge pressure of (1) decreases, the refrigerant liquid flows from the refrigerant tank (T) through the tank-side refrigerant pipe (17) as indicated by the dashed arrow. For this reason, the amount of the circulating refrigerant liquid can be increased by the refrigerant liquid flowing out of the refrigerant tank (T), which can cope with a partial load or a low cooling water operation.
さらに、吸収冷凍機の停止時に冷媒ポンプ（20）を止
めた際には、冷媒タンク（Ｔ）内の冷媒液が一点鎖線矢
印にて示したようにタンク側冷媒管（17）、冷媒ポンプ
（20）、及び冷媒循環管（18）を通り、冷媒液溜（4A）
へ流れる。そして、冷媒液溜（4A）の冷媒液がオーバー
フローして蒸発器（４）の隣の吸収器（５）へ流れるた
め、吸収液の稀釈濃度を下げることができる。Further, when the refrigerant pump (20) is stopped when the absorption refrigerator is stopped, the refrigerant liquid in the refrigerant tank (T) is filled with the tank-side refrigerant pipe (17) and the refrigerant pump ( 20), and through the refrigerant circulation pipe (18), through the refrigerant pool (4A)
Flows to Since the refrigerant liquid in the refrigerant liquid reservoir (4A) overflows and flows to the absorber (5) next to the evaporator (4), the dilution concentration of the absorption liquid can be reduced.
又、凝縮器（３）からの冷媒液と蒸発器（４）からの
冷媒液とが冷媒タンク（Ｔ）にて混ざり、凝縮器（３）
の冷媒液より温度が低い例えば20℃〜30℃の冷媒液が蒸
発器（４）へ流れるため、冷媒液のフラッシュを低減あ
るいは防止することができる。Further, the refrigerant liquid from the condenser (3) and the refrigerant liquid from the evaporator (4) are mixed in the refrigerant tank (T), and the condenser (3)
Since the refrigerant liquid having a temperature lower than that of the refrigerant liquid of, for example, 20 ° C. to 30 ° C. flows to the evaporator (4), the flush of the refrigerant liquid can be reduced or prevented.
又、冷媒タンク（Ｔ）と蒸発器（４）の気相部との間
に設けられた均圧管（24）により、冷媒タンク（Ｔ）と
蒸発器（４）との圧力が略等しくなり、冷媒タンク
（Ｔ）から蒸発器（４）へ冷媒液をスムーズに流すこと
ができ、又、冷媒タンク（Ｔ）に発生した不凝縮ガスは
均圧管（24）を介して蒸発器（４）へ流れるため、不凝
縮ガスが冷媒タンク（Ｔ）に滞溜することを防止でき
る。Further, the pressure in the refrigerant tank (T) and the pressure in the evaporator (4) are substantially equalized by the pressure equalizing pipe (24) provided between the refrigerant tank (T) and the gas phase portion of the evaporator (4). The refrigerant liquid can flow smoothly from the refrigerant tank (T) to the evaporator (4), and the non-condensable gas generated in the refrigerant tank (T) flows to the evaporator (4) via the pressure equalizing pipe (24). Since it flows, the non-condensable gas can be prevented from staying in the refrigerant tank (T).
（ト）発明の効果 本発明は以上のように構成された吸収冷凍機であり、
蒸発器の冷媒液溜より高い位置に設けられ、冷媒液を貯
溜する冷媒タンクと、冷媒タンクと凝縮器との間に設け
られ途中にＵシールが形成され凝縮器側冷媒管と、冷媒
タンクと冷媒ポンプの吐出側との間に設けられたポンプ
側冷媒管と、冷媒タンクと蒸発器との間に設けられた冷
媒液供給管と、冷媒タンクと蒸発器の気相部との間に設
けられた均圧管とを備えているため、吸収冷凍機の運転
時、凝縮器と凝縮器との間が冷媒タンクに貯溜されてい
る冷媒液により確実にシールされ、凝縮器から蒸発器へ
の冷媒蒸気のまき込みを防止でき、この結果、冷凍損失
の発生を防止することができる。(G) Effects of the Invention The present invention is an absorption refrigerator configured as described above,
A refrigerant tank that is provided at a position higher than the refrigerant liquid reservoir of the evaporator and stores the refrigerant liquid, a U-seal is formed between the refrigerant tank and the condenser, and a U-seal is formed in the middle thereof, A pump-side refrigerant pipe provided between the refrigerant pump and the discharge side, a refrigerant liquid supply pipe provided between the refrigerant tank and the evaporator, and a refrigerant liquid supply pipe provided between the refrigerant tank and the vapor phase portion of the evaporator. When the absorption refrigerator is operated, the space between the condenser and the condenser is securely sealed by the refrigerant liquid stored in the refrigerant tank, and the refrigerant from the condenser to the evaporator is operated. It is possible to prevent steam from being introduced, and as a result, it is possible to prevent the occurrence of refrigeration loss.
又、吸収冷凍機の部分負荷時、又は低冷却水運転時に
は、冷媒液が冷媒タンクからポンプ側冷媒管、冷媒ポン
プを介して蒸発器へ流れ、冷媒循環量が増加し、冷媒循
環量の減少により冷媒ポンプのキャビテーションを防止
することができる。又、冷媒タンクと蒸発器の気相部と
の間に設けられた均圧管により、冷媒タンクと蒸発器と
の圧力を略等しくすることができ、冷媒タンクから蒸発
器へ冷媒液をスムーズに流すことができ、又、冷媒タン
クに発生した不凝縮ガスが均圧管を介して蒸発器へ流
れ、不凝縮ガスの冷媒タンクへの滞溜を防止することが
できる。Also, at the time of partial load of the absorption refrigerator, or at the time of low cooling water operation, the refrigerant liquid flows from the refrigerant tank to the evaporator via the refrigerant pipe on the pump side and the refrigerant pump, the refrigerant circulation amount increases, and the refrigerant circulation amount decreases. Thereby, cavitation of the refrigerant pump can be prevented. In addition, the pressure in the refrigerant tank and the evaporator can be substantially equalized by the pressure equalizing pipe provided between the refrigerant tank and the gas phase portion of the evaporator, and the refrigerant liquid flows smoothly from the refrigerant tank to the evaporator. In addition, the non-condensable gas generated in the refrigerant tank flows to the evaporator via the pressure equalizing pipe, and the non-condensable gas can be prevented from remaining in the refrigerant tank.
又、凝縮器と蒸発器とから流出した冷媒液が凝縮器側
冷媒管又はポンプ側冷媒管等を介して冷媒タンクに流
れ、冷媒タンクにて混ざり、凝縮器の冷媒液温度より低
い冷媒液が蒸発器の冷媒液溜より高い位置の冷媒タンク
から蒸発器へ流れるため、冷媒液のフラッシュを低減す
ることができる。In addition, the refrigerant liquid flowing out of the condenser and the evaporator flows into the refrigerant tank via the condenser-side refrigerant pipe or the pump-side refrigerant pipe, and is mixed in the refrigerant tank, and the refrigerant liquid having a temperature lower than the refrigerant liquid temperature of the condenser is discharged. Since the refrigerant flows from the refrigerant tank at a position higher than the refrigerant liquid reservoir of the evaporator to the evaporator, flashing of the refrigerant liquid can be reduced.
さらに、冷媒ポンプの停止時、冷媒液溜より高い位置
の冷媒タンクから冷媒液溜へ冷媒液を流し、冷媒液溜か
らオーバーフローした冷媒液を、蒸発器に隣接した吸収
器へ流すことにより、吸収液の希釈濃度を下げることが
できる。Furthermore, when the refrigerant pump is stopped, the refrigerant liquid flows from the refrigerant tank higher than the refrigerant liquid reservoir to the refrigerant liquid reservoir, and the refrigerant liquid overflowing from the refrigerant liquid reservoir flows to the absorber adjacent to the evaporator, thereby absorbing the refrigerant liquid. The dilution concentration of the liquid can be reduced.
図面は本発明の一実施例を示す吸収冷凍機の回路構成図
である。 （１）……再生器、（３）……凝縮器、（４）……蒸発
器、（4A）……冷媒液溜、（５）……吸収器、（Ｔ）…
…冷媒タンク、（16）……凝縮器側冷媒管、（17）……
ポンプ側冷媒管、（19）……冷媒液供給管、（24）……
均圧管。The drawing is a circuit configuration diagram of an absorption refrigerator showing one embodiment of the present invention. (1) ... regenerator, (3) ... condenser, (4) ... evaporator, (4A) ... refrigerant pool, (5) ... absorber, (T) ...
... refrigerant tank, (16) ... condenser side refrigerant pipe, (17) ...
Pump side refrigerant pipe, (19) ... refrigerant liquid supply pipe, (24) ...
Equalizing tube.
Claims (2)
れぞれ配管接続し、蒸発器に設けられた冷媒液溜に滞溜
した冷媒液を循環させる冷媒ポンプを有した吸収冷凍機
において、蒸発器の冷媒液溜より高い位置に設けられ冷
媒液を貯溜する冷媒タンクと、冷媒タンクと凝縮器との
間に設けられ途中にＵシールが形成された凝縮器側冷媒
管と、冷媒タンクと冷媒ポンプの吐出側との間に設けら
れたポンプ側冷媒管と、冷媒タンクと蒸発器との間に設
けられた冷媒液供給管と、冷媒タンクと蒸発器の気相部
との間に設けられた均圧管とを備えたことを特徴とする
吸収冷凍機。1. An absorption refrigerator having a refrigerant pump for connecting a condenser, an evaporator, an absorber, and a regenerator with respective pipes and circulating a refrigerant liquid accumulated in a refrigerant liquid reservoir provided in the evaporator. A refrigerant tank provided at a position higher than the refrigerant liquid reservoir of the evaporator and storing the refrigerant liquid; a condenser-side refrigerant pipe provided between the refrigerant tank and the condenser and having a U-seal formed in the middle thereof; Pump-side refrigerant pipe provided between the refrigerant pump and the discharge side of the refrigerant pump, a refrigerant liquid supply pipe provided between the refrigerant tank and the evaporator, and between the refrigerant tank and the vapor phase of the evaporator. An absorption refrigerator comprising: an equalizing pipe provided.
収器、及び再生器をそれぞれ配管接続し、蒸発器の下部
に設けられた冷媒液溜に滞溜した冷媒液を循環させる冷
媒ポンプを有した吸収冷凍機において、蒸発器の冷媒液
溜より高い位置に設けられ冷媒液を貯溜する冷媒タンク
と、冷媒タンクと凝縮器との間に設けられ途中にＵシー
ルが形成された凝縮器側冷媒管と、冷媒タンクと冷媒ポ
ンプの吐出側との間に設けられたポンプ側冷媒管と、冷
媒タンクと蒸発器との間に設けられた冷媒液供給管と、
冷媒タンクと蒸発器の気相部との間に設けられた均圧管
とを備え、冷媒液溜からオーバーフローした冷媒液を吸
収器へ流すようにしたことを特徴とする吸収冷凍機。2. A refrigerant for pipe-connecting a condenser, an evaporator, an absorber adjacent to the evaporator, and a regenerator, and circulating a refrigerant liquid accumulated in a refrigerant liquid reservoir provided at a lower part of the evaporator. In an absorption refrigerator having a pump, a refrigerant tank provided at a position higher than a refrigerant liquid reservoir of an evaporator and storing a refrigerant liquid, and a condenser provided between the refrigerant tank and the condenser and having a U seal formed in the middle thereof Device-side refrigerant pipe, a pump-side refrigerant pipe provided between the refrigerant tank and the discharge side of the refrigerant pump, a refrigerant liquid supply pipe provided between the refrigerant tank and the evaporator,
An absorption refrigerator comprising a pressure equalizing pipe provided between a refrigerant tank and a gas phase part of an evaporator, wherein the refrigerant liquid overflowing from a refrigerant liquid reservoir flows to an absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27045188A JP2654127B2 (en) | 1988-10-26 | 1988-10-26 | Absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27045188A JP2654127B2 (en) | 1988-10-26 | 1988-10-26 | Absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02118369A JPH02118369A (en) | 1990-05-02 |
| JP2654127B2 true JP2654127B2 (en) | 1997-09-17 |
Family
ID=17486471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27045188A Expired - Fee Related JP2654127B2 (en) | 1988-10-26 | 1988-10-26 | Absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2654127B2 (en) |
-
1988
- 1988-10-26 JP JP27045188A patent/JP2654127B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02118369A (en) | 1990-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |