JP2979370B2 - Control method of absorption chiller / heater with cooling / heating switching function - Google Patents
Control method of absorption chiller / heater with cooling / heating switching functionInfo
- Publication number
- JP2979370B2 JP2979370B2 JP6247790A JP24779094A JP2979370B2 JP 2979370 B2 JP2979370 B2 JP 2979370B2 JP 6247790 A JP6247790 A JP 6247790A JP 24779094 A JP24779094 A JP 24779094A JP 2979370 B2 JP2979370 B2 JP 2979370B2
- Authority
- JP
- Japan
- Prior art keywords
- evaporator
- cooling
- heating
- solution
- gas
- 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 - Lifetime
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)
Description
【0001】[0001]
【産業上の利用分野】本発明は、吸収冷温水機に係り、
特に冷暖切り替え機能付吸収冷温水機の制御方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption chiller / heater,
In particular, the present invention relates to a method for controlling an absorption chiller / heater with a cooling / heating switching function.
【0002】[0002]
【従来の技術】従来図3に示すごとき構成の冷暖切り替
え機能付二重効用吸収冷温水機が知られている。図示の
吸収冷温水機は、希溶液をバーナ3で加熱する高温再生
器2と、該高温再生器2に揚液管4で接続された分離器
5と、該分離器5に接して配置され分離器5で分離され
た冷媒蒸気が流れる冷媒蒸気管を内装した低温再生器7
と、前記分離器5で分離された中間濃溶液が加熱流体側
を流れる高温溶液熱交換器6と、低温再生器7で生成さ
れた濃溶液が加熱流体側を流れる低温溶液熱交換器15
と、低温再生器7に隣接して配置され冷媒蒸気流路で該
低温再生器7に連通されるとともに凝縮器冷却コイル1
9を内装した凝縮器8と、該凝縮器8に隣接して配置さ
れ冷温水コイル10を内装した蒸発器9と、該蒸発器9
に隣接かつ連通して配置され前記凝縮器冷却コイル19
に直列に接続された吸収器冷却コイル17を内装した吸
収器14と、前記分離器5と吸収器14を接続する配管
に介装された冷暖切り替え手段をなす冷暖切り替え弁2
3と、低温溶液熱交換器15の加熱流体側を通過した濃
溶液を吸収器に内装された濃溶液分配管16に導く濃溶
液管24と、前記冷温水コイル10に冷温水を循環させ
る冷温水ポンプ41と、該冷温水ポンプ41及び前記バ
ーナ3を制御する制御ボックス40と、前記吸収器14
の底部に希溶液管22を介して吸い込み側を接続し吐出
側を前記低温溶液熱交換器15の被加熱流体側に接続し
た溶液循環ポンプ21と、前記吸収器14の下部に先端
の開孔部を位置させたガス導入管34に接続されたガス
分離器30と、該ガス分離器30の下部にガス降下管3
5を介して接続されたガス分離器B36と、該ガス分離
器B36の底部と前記蒸発器9の底部43を連通する溶
液戻り管37と、前記濃溶液管24と前記ガス分離器3
0の底部を連通する濃溶液導入管32と、前記ガス分離
器B36の上部にガス分離管38で接続されたガス貯蔵
室42と、前記吸収器冷却コイル17の一端に接続され
た冷却水配管20Aと、前記凝縮器冷却コイル19の一
端に接続された冷却水配管20と、冷却水配管20とガ
ス分離器30を結ぶ導管45と、冷却水配管20Aとガ
ス分離器30を結ぶ導管45Aと、を含んで構成されて
いる。蒸発器9には、凝縮器8に流入する冷媒蒸気を凝
縮液化して生成された液冷媒を冷温水コイル10上に散
布する冷媒分配管11が内装されている。導管45Aか
らガス分離器30に流入した冷却水はガス分離器30内
の冷却コイルを経て導管45に流出し、冷却水配管20
を流れる冷却水に合流する。2. Description of the Related Art Conventionally, there is known a double effect absorption chiller / heater having a cooling / heating switching function as shown in FIG. The illustrated absorption chiller / heater is provided with a high-temperature regenerator 2 for heating a dilute solution by a burner 3, a separator 5 connected to the high-temperature regenerator 2 by a liquid pump 4, and a separator 5 in contact with the separator 5. Low-temperature regenerator 7 equipped with a refrigerant vapor pipe through which refrigerant vapor separated by separator 5 flows
A high-temperature solution heat exchanger 6 in which the intermediate concentrated solution separated by the separator 5 flows on the heating fluid side, and a low-temperature solution heat exchanger 15 in which the concentrated solution generated by the low-temperature regenerator 7 flows on the heating fluid side.
And a condenser cooling coil 1 disposed adjacent to the low-temperature regenerator 7 and communicated with the low-temperature regenerator 7 through a refrigerant vapor flow path.
9; an evaporator 9 disposed adjacent to the condenser 8 and including a cold / hot water coil 10;
Condenser cooling coil 19 disposed adjacent to and in communication with
, A cooling / heating switching valve 2 serving as cooling / heating switching means interposed in a pipe connecting the separator 5 and the absorber 14.
3, a concentrated solution pipe 24 for guiding the concentrated solution passing through the heated fluid side of the low-temperature solution heat exchanger 15 to a concentrated solution distribution pipe 16 provided in the absorber, and a cold and hot water circulating through the cold and hot water coil 10. A water pump 41; a control box 40 for controlling the cold / hot water pump 41 and the burner 3;
A solution circulating pump 21 having a suction side connected to the bottom portion of the low temperature solution heat exchanger 15 via a dilute solution pipe 22 and a discharge side connected to the fluid to be heated side of the low temperature solution heat exchanger 15; A gas separator 30 connected to a gas inlet pipe 34 in which a gas outlet is located, and a gas downcomer 3
5, a solution return pipe 37 communicating the bottom of the gas separator B36 with the bottom 43 of the evaporator 9, the concentrated solution pipe 24 and the gas separator 3
0, a concentrated solution introducing pipe 32 communicating with the bottom of the gas separator B 36, a gas storage chamber 42 connected to the upper part of the gas separator B 36 by a gas separating pipe 38, and a cooling water pipe connected to one end of the absorber cooling coil 17. 20A, a cooling water pipe 20 connected to one end of the condenser cooling coil 19, a conduit 45 connecting the cooling water pipe 20 and the gas separator 30, and a conduit 45A connecting the cooling water pipe 20A and the gas separator 30. , Is configured. The evaporator 9 is provided with a refrigerant distribution pipe 11 for dispersing the liquid refrigerant generated by condensing and liquefying the refrigerant vapor flowing into the condenser 8 onto the cold / hot water coil 10. The cooling water flowing into the gas separator 30 from the conduit 45A flows through the cooling coil in the gas separator 30 to the conduit 45, and the cooling water piping 20
Into the cooling water flowing through.
【0003】上記構成の装置において、暖房運転時は、
冷暖切り替え弁23が開かれ、高温再生器2で発生した
高温溶液と高温冷媒蒸気が吸収器14を経て蒸発器9へ
導かれ、蒸発器9の底部43には高温溶液が溜る。蒸発
器9内は圧力が上昇し、ガス貯蔵室42の圧力以上とな
るため、蒸発器9の底部43に溜った高温溶液は、溶液
戻り管37内に入り、ガス分離器B36を経て、圧力バ
ランスがとれるまでガス分離管38内を上昇する。[0003] In the apparatus having the above configuration, during the heating operation,
The cooling / heating switching valve 23 is opened, and the high-temperature solution and the high-temperature refrigerant vapor generated in the high-temperature regenerator 2 are guided to the evaporator 9 through the absorber 14, and the high-temperature solution is stored in the bottom 43 of the evaporator 9. Since the pressure in the evaporator 9 increases and becomes equal to or higher than the pressure of the gas storage chamber 42, the high-temperature solution stored in the bottom 43 of the evaporator 9 enters the solution return pipe 37, passes through the gas separator B36, and It rises in the gas separation tube 38 until balance is achieved.
【0004】[0004]
【発明が解決しようとする課題】暖房を停止する時は、
図2に示すような制御フローで制御ボックス40からバ
ーナ3と冷温水ポンプ41に同時に停止命令が出され
る。しかしこのような機構では、暖房停止時、蒸発器9
内の圧力が周囲からの余熱により一時的に上昇するた
め、高温溶液がさらに溶液戻り管37内に送りこまれ
る。この後にある一定時間経過後(暖房から冷房へ切り
換えるときは、装置の温度を考慮し、暖房停止後30分
程度の時間が経過してから冷房運転に入るようにしてあ
る。)、冷房運転を開始すると、冷却水配管20に冷却
水が通水され、蒸発器9内の圧力が急減する。この圧力
の急減により、溶液戻り管37内の高温溶液がフラッシ
ュして液がなくなってしまうため、溶液戻り管37とガ
ス分離管38内の溶液で保たれていたU字液シールが壊
れ、ガス貯蔵室42に封入してあった不凝縮性ガスが蒸
発器9内へ逆流する。不凝縮性ガスが蒸発器9内へ逆流
してくると、蒸発器9内の圧力が必要な圧力にまで低下
しなくなり、冷房能力不良が生じる。When the heating is stopped,
According to the control flow shown in FIG. 2, a stop command is issued from the control box 40 to the burner 3 and the cold / hot water pump 41 at the same time. However, with such a mechanism, when heating is stopped, the evaporator 9
Since the internal pressure temporarily increases due to residual heat from the surroundings, the high-temperature solution is further sent into the solution return pipe 37. After a lapse of a certain period of time thereafter (when switching from heating to cooling, the cooling operation is started after a lapse of about 30 minutes after stopping heating in consideration of the temperature of the apparatus). When the cooling water starts, the cooling water flows through the cooling water pipe 20, and the pressure in the evaporator 9 rapidly decreases. Due to this rapid decrease in pressure, the high-temperature solution in the solution return pipe 37 flashes and runs out of liquid, so the U-shaped liquid seal maintained by the solution in the solution return pipe 37 and the gas in the gas separation pipe 38 is broken, and The non-condensable gas sealed in the storage room 42 flows back into the evaporator 9. When the non-condensable gas flows back into the evaporator 9, the pressure in the evaporator 9 does not decrease to a required pressure, and a cooling capacity defect occurs.
【0005】本発明の目的は、上述のような、冷暖切り
替え弁の操作によって暖房運転と冷房運転を遠隔操作で
切り換えできる吸収冷温水機において、暖房から冷房に
切り替えたときに、冷房能力が低下するのを防止するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an absorption chiller / heater which can remotely switch between a heating operation and a cooling operation by operating a cooling / heating switching valve as described above. The purpose is to prevent
【0006】[0006]
【課題を解決するための手段】本発明は、上記の目的を
達成するために、吸収溶液を加熱するためのバーナを備
えた高温再生器と、該高温再生器で加熱された吸収溶液
から冷媒蒸気と中間濃溶液を分離する分離器と、該分離
器で分離された冷媒蒸気を凝縮液化させる凝縮器と、該
凝縮器で生成された液冷媒を蒸発させて冷温水を冷却す
る蒸発器と、蒸発器に冷温水を循環させる冷温水ポンプ
と、蒸発器底部に溶液戻り管を介して接続され不凝縮性
ガスを貯蔵するガス貯蔵室と、前記分離器と前記蒸発器
を冷暖切り替え手段をなす弁を介して連通する配管と、
を含んでなる冷暖切り替え機能付吸収冷温水機の運転方
法において、暖房運転から冷房運転に切り替えるため暖
房運転を停止するとき、まず、高温再生器加熱用バーナ
の燃焼を停止し、バーナの燃焼停止後蒸発器周辺の暖房
状態での余熱が除去されるまで冷温水ポンプの運転を継
続することを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a high-temperature regenerator having a burner for heating an absorbing solution, and a method for refrigerating a refrigerant from the absorbing solution heated by the high-temperature regenerator. A separator that separates the vapor and the intermediate concentrated solution, a condenser that condenses and liquefies the refrigerant vapor separated by the separator, and an evaporator that cools the cold and hot water by evaporating the liquid refrigerant generated by the condenser. A hot / cold water pump for circulating cold / hot water through the evaporator, a gas storage chamber connected to the bottom of the evaporator via a solution return pipe to store non-condensable gas, and a means for switching between the separator and the evaporator. A pipe that communicates through a valve that forms
In the operation method of the absorption chiller / heater with the cooling / heating switching function including the above, when the heating operation is stopped to switch from the heating operation to the cooling operation, first, the combustion of the high temperature regenerator heating burner is stopped, and the combustion of the burner is stopped. The operation of the cold / hot water pump is continued until the residual heat in the heating state around the post-evaporator is removed.
【0007】[0007]
【作用】バーナの燃焼停止後も、蒸発器周辺の暖房状態
での余熱が除去されるまで冷温水ポンプの運転が継続さ
れ、蒸発器周辺の暖房状態での余熱が蒸発器に内装され
た冷温水コイル内を循環する冷温水により除去されるの
で、暖房運転停止後周囲の余熱によって蒸発器内の圧力
が上昇するのが避けられ、蒸発器の底部に溜っている溶
液が暖房運転停止後に溶液戻り管に入り込むことが無く
なる。また、蒸発器周辺の暖房状態での余熱が蒸発器に
内装された冷温水コイル内を循環する冷温水により除去
されるのに併せて、蒸発器の底部に溜っている溶液の温
度が低くなるので、冷房運転開始時に蒸発器の圧力が急
減しても、溶液戻り管内にあって蒸発器とガス貯蔵室の
間をシールしている溶液がフラッシュして液がなくなっ
てシールが破壊されることがなくなる。The operation of the chilled / hot water pump is continued until the residual heat in the heating state around the evaporator is removed even after the combustion of the burner is stopped. Since the water is removed by the hot and cold water circulating in the water coil, the pressure inside the evaporator is prevented from rising due to the surrounding residual heat after the heating operation is stopped, and the solution remaining at the bottom of the evaporator is removed after the heating operation is stopped. No more getting into the return pipe. In addition, the temperature of the solution remaining at the bottom of the evaporator decreases as the residual heat in the heating state around the evaporator is removed by the cold and hot water circulating in the cold and hot water coil provided in the evaporator. Therefore, even if the pressure of the evaporator suddenly drops at the start of the cooling operation, the solution in the solution return pipe, which seals the space between the evaporator and the gas storage chamber, flashes, and the liquid disappears and the seal is broken. Disappears.
【0008】[0008]
【実施例】以下、本考案の実施例を、図1、図3を参照
して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
【0009】吸収冷温水機の構成は、先に従来技術とし
て説明したものと同様である。従って先に説明したよう
に、暖房運転時には、蒸発器9の底部43の高温溶液は
溶液戻り管37に入り、ガス分離管38を上昇してU字
液シールを構成する。U字液シール差圧は、蒸発器9の
圧力とガス貯蔵室42の圧力により決まる。暖房時は、
蒸発器圧力>ガス貯蔵室圧力となっている。The configuration of the absorption chiller / heater is the same as that described above as the prior art. Therefore, as described above, during the heating operation, the high temperature solution at the bottom 43 of the evaporator 9 enters the solution return pipe 37 and rises the gas separation pipe 38 to form a U-shaped liquid seal. The U-shaped liquid seal differential pressure is determined by the pressure of the evaporator 9 and the pressure of the gas storage chamber 42. During heating,
Evaporator pressure> gas storage chamber pressure.
【0010】暖房運転状態から暖房を停止するとき、図
1に示す制御フローに従い、バーナ3は直ちに停止され
るが、冷温水ポンプ41はバーナが停止されてから蒸発
器周辺の暖房状態での余熱が除去されるまで運転を継続
した後停止される。このため、バーナ停止時点での蒸発
器周辺の余熱が冷温水コイル10内を循環する冷温水に
より除去され、該余熱による蒸発器の圧力上昇が生じな
い。圧力上昇が生じないので、蒸発器9の底部43の高
温溶液の溶液戻り管37への進入が生じない。蒸発器9
の底部43の高温溶液は、冷温水ポンプ41に駆動され
冷温水コイル10を循環する冷温水により蒸発器周辺の
熱が除去されるのに併せて熱の一部を奪われるととも
に、溶液戻り管37内の溶液も30分間の切り替え待ち
時間の間に徐々に冷却される。30分経過後、冷房運転
を開始すると、蒸発器内の圧力は同様に急減するが、蒸
発器9の底部43の溶液はその温度が低下しているので
フラッシュせず、溶液戻り管37内の溶液もフラッシュ
によって液が無くなることはなく、U字液シールは破壊
されることがない。当然、ガス貯蔵室42に封入してあ
る不凝縮性ガスの蒸発器への逆流が生ぜず、蒸発器内で
の不凝縮性ガスの存在による冷房能力の低下が生ずるの
が避けられる。発明者らの実験によれば、バーナ3の燃
焼停止後、蒸発器周辺の暖房状態の余熱が除去されるま
で少なくとも10分間、冷温水ポンプ41を運転して蒸
発器の冷却を行えば、冷房運転開始時に、溶液戻り管3
7内の溶液のフラッシュによりU字液シールが破壊され
るのを避けることができる。When heating is stopped from the heating operation state, the burner 3 is immediately stopped in accordance with the control flow shown in FIG. 1, but the chilled / hot water pump 41 is activated after the burner is stopped and the residual heat in the heating state around the evaporator. After the operation is continued until is removed, the operation is stopped. Therefore, the residual heat around the evaporator at the time of stopping the burner is removed by the cold / hot water circulating in the cold / hot water coil 10, and the pressure of the evaporator does not increase due to the residual heat. Since no pressure rise occurs, no hot solution at the bottom 43 of the evaporator 9 enters the solution return pipe 37. Evaporator 9
The high-temperature solution in the bottom portion 43 is driven by the cold / hot water pump 41 to remove a part of the heat as the heat around the evaporator is removed by the cold / hot water circulating through the cold / hot water coil 10, and the solution return pipe The solution in 37 is also gradually cooled during the switching waiting time of 30 minutes. After the elapse of 30 minutes, when the cooling operation is started, the pressure in the evaporator also decreases rapidly, but the solution at the bottom 43 of the evaporator 9 is not flushed because its temperature has dropped, and the solution in the solution return pipe 37 is not flushed. The solution does not run out by flushing, and the U-shaped liquid seal is not broken. Naturally, backflow of the non-condensable gas sealed in the gas storage chamber 42 to the evaporator does not occur, so that the presence of the non-condensable gas in the evaporator can be prevented from lowering the cooling capacity. According to the experiments by the inventors, after the combustion of the burner 3 is stopped, the evaporator is cooled by operating the cold / hot water pump 41 for at least 10 minutes until the residual heat in the heating state around the evaporator is removed. At the start of operation, the solution return pipe 3
The flushing of the solution in 7 can avoid breaking the U-shaped liquid seal.
【0011】冷房時は、冷暖切り替え弁23は閉じら
れ、低温溶液熱交換器15で熱を放出した濃溶液の一部
が濃溶液管24から分岐され、濃溶液導入管32を経て
ガス分離器30へ導かれる。ガス分離器30へ導かれた
濃溶液は、ガス分離器30内の冷却コイルを流れる冷却
水に冷却される。ガス分離器30の圧力は、吸収器14
の圧力より低下し、吸収器冷却コイル17付近の不凝縮
性ガスはガス導入管34を介して吸いあげられ、ガス分
離器30に導かれる。ガス分離器30に溜った不凝縮性
ガスは、ガス降下管35を前記濃溶液とともに降下し、
ガス分離器B36へ入る。不凝縮性ガスはここで分離さ
れ、ガス分離管38でガス貯蔵室42に導かれ、貯えら
れる。また、ガス分離器B36中の溶液は、溶液戻り管
37を経て蒸発器9の底部43に戻される。ガス貯蔵室
42に貯えられた不凝縮性ガスのガス圧のため、蒸発器
圧力<ガス貯蔵室圧力となるが、溶液戻り管37とガス
分離管38内にある溶液により、U字液シールされてい
るので、不凝縮性ガスが蒸発器9側へ逆流することはな
い。During cooling, the cooling / heating switching valve 23 is closed, a part of the concentrated solution that has released heat in the low-temperature solution heat exchanger 15 is branched off from the concentrated solution pipe 24, and passes through the concentrated solution introduction pipe 32 to the gas separator. It is led to 30. The concentrated solution guided to the gas separator 30 is cooled by cooling water flowing through a cooling coil in the gas separator 30. The pressure of the gas separator 30 is controlled by the absorber 14
And the non-condensable gas in the vicinity of the absorber cooling coil 17 is sucked up through the gas introduction pipe 34 and guided to the gas separator 30. The non-condensable gas accumulated in the gas separator 30 falls down the gas down pipe 35 together with the concentrated solution,
Enter the gas separator B36. The non-condensable gas is separated here, guided to a gas storage chamber 42 by a gas separation pipe 38, and stored. Further, the solution in the gas separator B 36 is returned to the bottom 43 of the evaporator 9 via the solution return pipe 37. Due to the gas pressure of the non-condensable gas stored in the gas storage chamber 42, the evaporator pressure <the gas storage chamber pressure. However, the solution in the solution return pipe 37 and the gas separation pipe 38 seals the U-shaped liquid. Therefore, the non-condensable gas does not flow back to the evaporator 9 side.
【0012】[0012]
【発明の効果】本発明によれば、任意に冷暖切り替え運
転を行っても、ガス貯蔵室に貯えられた不凝縮性ガスの
蒸発器側への進入がないので、不凝縮性ガスの吸収能力
阻害による冷房能力の低下がない。According to the present invention, even if the cooling / heating switching operation is performed arbitrarily, the non-condensable gas stored in the gas storage chamber does not enter the evaporator side, so that the non-condensable gas absorption capacity is improved. There is no decrease in cooling capacity due to inhibition.
【図1】本発明の実施例を示すフローチャートである。FIG. 1 is a flowchart showing an embodiment of the present invention.
【図2】従来技術の例を示すフローチャートである。FIG. 2 is a flowchart illustrating an example of the related art.
【図3】本発明が適用される吸収冷温水機の構成の例を
示すブロック図である。FIG. 3 is a block diagram showing an example of a configuration of an absorption chiller / heater to which the present invention is applied.
2 高温再生器 3 バーナ 4 揚液管 5 分離器 6 高温溶液熱交換器 7 低温再生器 8 凝縮器 9 蒸発器 10 冷温水コイル 11 冷媒分配
管 14 吸収器 15 低温溶液
熱交換器 16 濃溶液分配管 17 吸収器冷
却コイル 19 凝縮器冷却コイル 20,20A
冷却水配管 21 溶液循環ポンプ 22 希溶液管 23 冷暖切り替え弁 24 濃溶液管 30 ガス分離器 32 濃溶液導
入管 34 ガス導入管 35 ガス降下
管 36 ガス分離器B 37 溶液戻り
管 38 ガス分離管 40 制御ボッ
クス 41 冷温水ポンプ 42 ガス貯蔵
室 43 蒸発器9の底部 45,45A
導管2 High temperature regenerator 3 Burner 4 Pumping pipe 5 Separator 6 High temperature solution heat exchanger 7 Low temperature regenerator 8 Condenser 9 Evaporator 10 Cold and hot water coil 11 Refrigerant distribution pipe 14 Absorber 15 Low temperature solution heat exchanger 16 Concentrated solution Piping 17 Absorber cooling coil 19 Condenser cooling coil 20, 20A
Cooling water pipe 21 Solution circulation pump 22 Dilute solution pipe 23 Cooling / heating switching valve 24 Concentrated solution pipe 30 Gas separator 32 Concentrated solution introduction pipe 34 Gas introduction pipe 35 Gas descending pipe 36 Gas separator B 37 Solution return pipe 38 Gas separation pipe 40 Control box 41 Cold / hot water pump 42 Gas storage room 43 Bottom part of evaporator 9 45, 45A
conduit
Claims (1)
た高温再生器と、該高温再生器で加熱された吸収溶液か
ら冷媒蒸気と中間濃溶液を分離する分離器と、該分離器
で分離された冷媒蒸気を凝縮液化させる凝縮器と、該凝
縮器で生成された液冷媒を蒸発させて冷温水を冷却する
蒸発器と、蒸発器に冷温水を循環させる冷温水ポンプ
と、蒸発器底部に溶液戻り管を介して接続され不凝縮性
ガスを貯蔵するガス貯蔵室と、前記分離器と前記蒸発器
を冷暖切り替え手段をなす弁を介して連通する配管と、
を含んでなる冷暖切り替え機能付吸収冷温水機の運転方
法において、暖房運転から冷房運転に切り替えるため暖
房運転を停止するとき、まず、高温再生器加熱用バーナ
の燃焼を停止し、バーナの燃焼停止後蒸発器周辺の暖房
状態での余熱が除去されるまで冷温水ポンプの運転を継
続することを特徴とする冷暖切り替え機能付吸収冷温水
機の制御方法。1. A high-temperature regenerator having a burner for heating an absorption solution, a separator for separating refrigerant vapor and an intermediate concentrated solution from the absorption solution heated by the high-temperature regenerator, and a separator for the separation A condenser for condensing and liquefying the refrigerant vapor, an evaporator for evaporating the liquid refrigerant generated in the condenser to cool the hot and cold water, a cold and hot water pump for circulating the cold and hot water through the evaporator, and a bottom of the evaporator. A gas storage chamber that is connected via a solution return pipe to store non-condensable gas, and a pipe that communicates the separator with the evaporator via a valve that forms a cooling / heating switching unit,
In the operation method of the absorption chiller / heater with the cooling / heating switching function including the above, when the heating operation is stopped to switch from the heating operation to the cooling operation, first, the combustion of the high temperature regenerator heating burner is stopped, and the combustion of the burner is stopped. A method for controlling an absorption chiller / heater with a cooling / heating switching function, wherein the operation of the chill / hot water pump is continued until residual heat in a heating state around the post-evaporator is removed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6247790A JP2979370B2 (en) | 1994-10-13 | 1994-10-13 | Control method of absorption chiller / heater with cooling / heating switching function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6247790A JP2979370B2 (en) | 1994-10-13 | 1994-10-13 | Control method of absorption chiller / heater with cooling / heating switching function |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08110113A JPH08110113A (en) | 1996-04-30 |
JP2979370B2 true JP2979370B2 (en) | 1999-11-15 |
Family
ID=17168692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6247790A Expired - Lifetime JP2979370B2 (en) | 1994-10-13 | 1994-10-13 | Control method of absorption chiller / heater with cooling / heating switching function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2979370B2 (en) |
-
1994
- 1994-10-13 JP JP6247790A patent/JP2979370B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH08110113A (en) | 1996-04-30 |
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