JPH11287527A - Absorption type cold/hot water generator - Google Patents

Absorption type cold/hot water generator

Info

Publication number
JPH11287527A
JPH11287527A JP11056614A JP5661499A JPH11287527A JP H11287527 A JPH11287527 A JP H11287527A JP 11056614 A JP11056614 A JP 11056614A JP 5661499 A JP5661499 A JP 5661499A JP H11287527 A JPH11287527 A JP H11287527A
Authority
JP
Japan
Prior art keywords
heater
temperature
control panel
evaporator
hot water
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.)
Granted
Application number
JP11056614A
Other languages
Japanese (ja)
Other versions
JP3209212B2 (en
Inventor
Yasuo Uraki
泰男 浦木
Akira Kabeta
昭 壁田
Takeshi Nakao
剛 中尾
Michihiko Aizawa
道彦 相沢
Tomihisa Ouchi
富久 大内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP05661499A priority Critical patent/JP3209212B2/en
Publication of JPH11287527A publication Critical patent/JPH11287527A/en
Application granted granted Critical
Publication of JP3209212B2 publication Critical patent/JP3209212B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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)
  • Air Conditioning Control Device (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an absorption type cold/hot water generator used in a multi type absorption air-conditioning system to perform comfortable air-conditioning and improve facility. SOLUTION: In an absorption cold/hot water generator, a weak solution dilluted by a refrigerant is heated by a high temperature regenerator 25 and a low temperature regenerator 24 to generate refrigerant steam and after, during cooling, refrigerant steam is cooled and condensed by a cooling means, the steam is evaporated by an evaporator 21. Further, during heating, cold/hot water is heated by using refrigerant steam by the evaporator 21 to produce hot water. A refrigerant to cool or heat cold/hot water by the evaporator 21 is absorbed or mixed in a strong solution generated during the generation of refrigerant steam by an absorber 22 to produce a weak solution, which is returned again to the high temperature regenerator 25 and the low temperature regenerator 24. The evaporator 21 and the absorber 22 are arranged in parallel, the condenser 23 and the low temperature regenerator 24 are arranged on the upper side of the evaporator 23 and the absorber 22. Further, the high temperature regenerator 25 is arranged in parallel to the evaporator 21 and the absorber 22. The evaporator apparatus 21 and the absorber 22, and the condenser 23 and the low temperature regenerator 24 are partitioned from each other by a partition plate 45. The partition plate 45 is bent and protruded between the condenser 23 and the low temperature regenerator 24 to form a heat insulation space.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は空調システムに用い
られる吸収冷式温水機に係り、とくに個別に空調を要求
するユーザーの希望にあわせて簡単に冷暖房の運転操作
ができるマルチタイプ吸収式空調システムに用いられる
吸収式冷温水機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption cooling water heater used in an air conditioning system, and more particularly to a multi-type absorption air conditioning system capable of easily operating a cooling and heating operation according to a request of a user who individually requests air conditioning. The present invention relates to an absorption type chiller / heater used for a water heater.

【０００２】[0002]

【従来の技術】吸収冷温水機を使った空調システムは、
例えば「中小型ガス空調システム」（社団法人日本冷凍
協会、平成元年３月２５日発行）に述べられているよう
に、基本的にセントラル空調方式であった。このセント
ラル空調方式には以下の３方式が知られている。2. Description of the Related Art An air conditioning system using an absorption chiller / heater is
For example, as described in "Small and Medium-sized Gas Air Conditioning System" (Japan Refrigeration Association, issued on March 25, 1989), the air conditioning system was basically a central air conditioning system. The following three systems are known as the central air conditioning system.

【０００３】（１）全空気方式：吸収冷温水機に空気調
和機を組合せ、建屋内の各部屋には冷温風ダクトで冷温
風を分配供給する。空気調和機の遠方運転操作盤および
吸収冷温水機の遠方操作盤をそれぞれ操作してシステム
を運転する。冷温風が供給される建屋内の部屋全部を一
括して空調できるが、そのために快適になるまでに時間
がかかること、無人で空調の必要が無い部屋まで空調す
るため省エネルギーでない。(1) All air system: An air conditioner is combined with an absorption chiller / heater, and cold and hot air is distributed and supplied to each room in the building by a cool / hot air duct. The system is operated by operating the remote control panel of the air conditioner and the remote control panel of the absorption chiller / heater, respectively. Although all the rooms in the building to which the hot and cold air is supplied can be air-conditioned collectively, it takes a long time to become comfortable, and it is not energy saving because it air-conditions unmanned rooms that do not need air conditioning.

【０００４】（２）水ー空気方式：建屋内に複数台の空
気調和機を分散配置し、吸収冷温水機から空気調和機に
冷温水主管を配管し、各空気調和機からは冷温風ダクト
で各部屋に冷温風を分配供給する。吸収冷温水機が運転
されていれば、各空気調和機のそれぞれの運転スイッチ
を操作するだけでそのエリアのみが空調でき、全空気方
式よりも省エネルギーである。各部屋のユーザーの空調
要求とは無関係に、まず、最初に吸収冷温水機を運転す
る必要がある。その時に空気調和機が運転されていない
と吸収冷温水機内の溶液が過濃縮され結晶したり、希釈
運転ができないなどの不具合が起こるため、空気調和機
の勝手な運転は出来ない。(2) Water-air system: A plurality of air conditioners are dispersedly arranged in a building, a main pipe of cold / hot water is connected from an absorption chiller / heater to an air conditioner, and a cool / hot air duct is provided from each air conditioner. Distributes and supplies cool and hot air to each room. If the absorption chiller / heater is operated, only operating the respective operation switch of each air conditioner can air-condition only that area, which is more energy saving than the all air system. Regardless of the air conditioning requirements of the user in each room, it is necessary to first operate the absorption chiller / heater. If the air conditioner is not operated at that time, the solution in the absorption chiller / heater will be over-concentrated and crystallized, or the dilution operation will not be performed.

【０００５】（３）全水方式：建屋内に複数台のファン
コイルユニットが分配配置され、これに吸収冷温水機か
ら冷温水主幹配管、冷温水枝管を介して接続されてい
る。各部屋のユーザーの空調要求とは無関係に、まず、
最初に吸収冷温水機を運転する必要があり、その時に、
ファンコイルユニットが運転されていないと吸収冷温水
機内の溶液が過濃縮され結晶したり、希釈運転が出来な
い等の不具合が起こるため、ファンコイルユニットの勝
手な運転は出来ない。(3) All-water system: A plurality of fan coil units are distributed and arranged in a building, and connected to the absorption chiller / heater via a chilled / hot water main pipe and a chilled / hot water branch pipe. Regardless of the air conditioning requirements of each room user,
It is necessary to operate the absorption chiller / heater first,
If the fan coil unit is not operated, the solution in the absorption chiller / heater will be over-concentrated and crystallized, or the dilution operation will not be performed.

【０００６】以上のように、吸収冷温水機はセントラル
空調の熱源機器として所定温度の冷水または温水の供給
源として利用されている。また、吸収冷温水機は冷房運
転と暖房運転のサイクルの切り替えが必要であり、予め
どちらかにセットアップされている。As described above, the absorption chiller / heater is used as a source of cold or hot water of a predetermined temperature as a heat source device for central air conditioning. In addition, the absorption chiller is a need to switch the cycle of the heating operation and cooling operation, has been set up in advance either.

【０００７】[0007]

【発明が解決しようとする課題】上述した従来の吸収冷
温水機を使った空調システムでは、建屋内の各部屋の空
気調和器の運転操作と、室外機である吸収冷温水機は別
の運転操作が必要であり、空調する場合にそれぞれの運
転スイッチ投入操作が必要であり、ある部屋の人が空調
が必要と思って空気調和器の運転スイッチを入れても吸
収冷温水機の運転スイッチが投入されていないと空調で
きないという不具合があった。またこれらのスイッチ操
作は溶液結晶などのトラブルが発生しないように運転す
るための操作手順を必要としていた。即ち、吸収冷温水
機の冷房運転の起動時には、冷房開始までに溶液の濃度
差が生じるまでの時間が必要であり、また、停止時には
濃縮溶液が自然放熱で冷却されて結晶することを防止す
るための希釈時間が必要である。これらの起動または停
止時に空気調和器やファンコイルユニットからの熱負荷
が無い状態で運転すると、前述のように溶液結晶が生じ
たり希釈運転が出来ないなどの不具合が生じる。そのた
め吸収冷温水機が運転される前に負荷要求と関係無しに
一部または全部の空気調和器またはファンコイルユニッ
トを運転して冷温水が循環されるように運転する必要が
あった。しかし、これらの操作は複雑であり、一般ユー
ザーが運転できないようにしていた。In the above-mentioned air conditioning system using the conventional absorption chiller / heater, the operation of the air conditioner in each room in the building and the operation of the absorption chiller / heater as the outdoor unit are different. It is necessary to operate the air conditioner, and it is necessary to turn on each operation switch when air conditioning, and even if a person in a room turns on the air conditioner operation switch because air conditioning is necessary, the operation switch of the absorption water heater If not turned on, there was a problem that air conditioning could not be performed. In addition, these switch operations require an operation procedure for operating such that troubles such as solution crystals do not occur. That is, at the time of starting the cooling operation of the absorption chiller / heater, a period of time is required until a difference in the concentration of the solution occurs before the start of cooling, and at the time of stop, the concentrated solution is cooled by natural heat radiation to prevent crystallization. Dilution time is required. If the operation is performed without the heat load from the air conditioner or the fan coil unit at the time of starting or stopping these, problems such as the generation of solution crystals and the inability to perform the dilution operation occur as described above. Therefore, before the absorption chiller / heater is operated, it is necessary to operate a part or all of the air conditioner or the fan coil unit so that the chiller / heater is circulated regardless of the load requirement. However, these operations were complicated and prevented ordinary users from driving.

【０００８】また、冷房と暖房の運転モードを切り替え
るときは、吸収冷温水機本体の運転も切り替える必要が
あった。すなわち、冷媒サイクルの切り替え並びに吸収
器と凝縮器の熱交換機器からの冷却水を抜く操作を必要
とし、これらも一般ユーザーができない作業であった。
また上記のように、負荷要求と関係無しに一部または全
部の空気調和器またはファンコイルユニットを、吸収冷
温水機が運転される前に運転して冷温水を循環させるか
ら、送風起動力や冷温水の循環動力の面で無駄なエネル
ギーを使用していた。Further, when switching between the cooling and heating operation modes, it is necessary to switch the operation of the absorption chiller / heater main body. That is, it is necessary to switch the refrigerant cycle and to remove the cooling water from the heat exchangers of the absorber and the condenser, and these operations cannot be performed by general users.
Further, as described above, since part or all of the air conditioner or the fan coil unit is operated before the absorption chiller / heater is operated to circulate the chilled / hot water regardless of the load requirement, the blast starting force and Useless energy was used in terms of circulating power for cold and hot water.

【０００９】本発明の目的は、上記従来技術の不具合に
鑑みなされたものであり、一般ユーザーによる複数室内
からの空調要求及び冷暖房切り替え要求に合わせて快適
に空調できる使い勝手の良いマルチタイプ吸収式空調シ
ステムを提供することにある。SUMMARY OF THE INVENTION An object of the present invention has been made in view of the above-mentioned disadvantages of the prior art, and is an easy-to-use multi-type absorption air conditioner that can comfortably air-condition according to a request for air conditioning from a plurality of rooms and a request for switching between cooling and heating by a general user. It is to provide a system.

【００１０】[0010]

【課題を解決するための手段】上記目的は、冷媒で希釈
された希溶液を再生器で加熱して冷媒蒸気を発生させ、
冷房時には冷媒蒸気を冷却手段により冷却凝縮させたの
ち蒸発器で蒸発させることにより冷温水を冷却し、暖房
時には蒸発器で冷媒蒸気により冷温水を加熱して温水と
し、蒸発器で冷温水を冷却または加熱したのちの冷媒を
冷媒蒸気発生時に生じた濃溶液に吸収器で吸収または混
合させて希溶液としたのち再生器へ戻す吸収式冷温水機
において、再生器は低温再生器と高温再生器を有し、蒸
発器と吸収器を並列配置し、この蒸発器と吸収器の上側
に凝縮器と低温再生器を配置し、さらに高温再生器を記
蒸発器及び吸収器に並列配置することにより達成され
る。The object of the present invention is to heat a dilute solution diluted with a refrigerant by a regenerator to generate refrigerant vapor,
During cooling, the refrigerant vapor is cooled and condensed by cooling means and then evaporated by an evaporator to cool the cold and hot water, and during heating, the cold and hot water is heated by the refrigerant vapor to hot water by the evaporator and cooled by the evaporator. Alternatively, in an absorption type chiller / heater in which a heated refrigerant is absorbed or mixed with a concentrated solution generated when refrigerant vapor is generated by an absorber into a dilute solution and then returned to a regenerator, the regenerator is a low-temperature regenerator and a high-temperature regenerator. By disposing an evaporator and an absorber in parallel, arranging a condenser and a low-temperature regenerator above the evaporator and the absorber, and further arranging a high-temperature regenerator in parallel with the evaporator and the absorber. Achieved.

【００１１】そして好ましくは、下部にある蒸発器及び
吸収器と、上部にある凝縮器及び低温再生器との間を仕
切る仕切る部材を設け、この仕切り部材を凝縮器と低温
再生器間に突出させてこれら凝縮器と低温再生器とを仕
切り、この突出部により凝縮器と低温再生器間に断熱空
間を形成するものである。Preferably, a partition member is provided for partitioning the lower evaporator and absorber from the upper condenser and low-temperature regenerator, and the partition member is projected between the condenser and the low-temperature regenerator. Thus, the condenser and the low-temperature regenerator are separated from each other, and the projecting portion forms an adiabatic space between the condenser and the low-temperature regenerator.

【００１２】なお、上記いずれの特徴においても、再生
器は加熱手段としてバーナを有し、このバーナは暖房Ｈ
1、冷房Ｈ2、低Ｌｏ及び停止ＯＦＦの４つの加熱量切換
が可能であり、暖房時は、この吸収冷温水機に接続され
る室内機の利用状況から求められた室内機負荷率に応じ
て、バーナの加熱量をＨ2、Ｌｏ、ＯＦＦ（停止） の３
段階に切り替え、冷房時は室内機負荷率に応じて、バー
ナの加熱量をＨ1、Ｌｏ、ＯＦＦ（停止）の３段階に切
り替える；蒸発器の底部にたまった冷媒液を吸収器へ移
送する気泡ポンプを備え、凝縮器から蒸発器に冷媒蒸気
を導くＵシール管と、冷媒液を冷媒蒸気とともに移送す
る気泡ポンプリフト主管とを１本の配管にて兼用させ
る；冷房運転時の冷水出口温度を検出する冷水温度検出
手段と、この冷水温度検出手段が検出した冷水出口温度
に応じて作動するサーモスイッチとを設け、検出した冷
水温度が上昇してこのサーモスイッチがオンとなってか
ら予め定めた時間経過後に、所定時間だけ前記サーモス
イッチの設定値をそれまでの設定値より高くし、この所
定時間経過後は元の設定値に戻すようにサーモスイッチ
を制御する制御手段を設けることが望ましい。[0012] In any of the above features, the regenerator has a burner as a heating means, and the burner has a heating H.
1. Four heating amounts can be switched: cooling H2, low Lo, and stop OFF. During heating, according to the indoor unit load factor determined from the usage status of the indoor unit connected to the absorption chiller / heater. , Burner heating amount of H2, Lo, OFF (stop)
The heating amount of the burner is switched to H1, Lo, and OFF (stop) according to the indoor unit load factor during cooling. Air bubbles that transfer the refrigerant liquid accumulated at the bottom of the evaporator to the absorber A single pipe serves both as a U-sealed pipe for introducing refrigerant vapor from the condenser to the evaporator and a bubble pump lift main pipe for transferring refrigerant liquid together with the refrigerant vapor; A chilled water temperature detecting means for detecting, and a thermoswitch which operates according to the chilled water outlet temperature detected by the chilled water temperature detecting means are provided, and a predetermined value is set after the detected chilled water temperature rises and the thermoswitch is turned on. After a lapse of time, control means for controlling the thermoswitch so that the set value of the thermoswitch is set higher than the previous set value for a predetermined time, and after the lapse of the predetermined time, returns to the original set value. It is desirable to provide.

【００１３】[0013]

【発明の実施の形態】以下、本発明のいくつかの実施例
を図を用いて説明する。図２は本発明に係るシステム全
体の概略構成図である。本システムは、冷却塔ＣＴ、冷
却水ポンプ及び冷温水ポンプを備えた吸収式冷温水機１
と、この吸収式冷温水機１から冷温水配管３を通して送
られてきた冷温水により、吸いこんだ空気の温度を調整
して送り出す室内機２とを備えている。各室内機２は、
それぞれに設けられた室内機コントローラ６により制御
され、その風量は、ファン２Ａの回転数を制御すること
により調節される。DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a schematic configuration diagram of the entire system according to the present invention. This system is an absorption type chiller / heater 1 equipped with a cooling tower CT, a cooling water pump and a chilled / hot water pump.
And an indoor unit 2 for adjusting and sending the temperature of the air taken in by the cold / hot water sent from the absorption hot / cold water unit 1 through the cold / hot water pipe 3. Each indoor unit 2
The air volume is controlled by the indoor unit controller 6 provided for each of them, and the air volume is adjusted by controlling the rotation speed of the fan 2A.

【００１４】また、冷温水配管３は、吸収式冷温水機１
からの主管路３Ａと、複数個の室内機２への複数個の副
管路３Ｃと、主管路３Ａと複数個の副管路３Ｃとを結び
冷温水の分岐を行う分岐阜管３Ｂと、より成る。これに
よって、１個の吸収式冷温水機１からの冷温水は、各室
内機２へ配分され、マルチ空調システムを構成できたこ
とになる。更に、室内機２は水空気熱交換機能および空
気の吸込・吹出機能をもつ。これは、副管路３Ｃにより
送られてきた冷温水を、室内機２の有する熱交換コイル
２Ｂ内を通し、その外側にファン２Ａによって吸い込ま
れた空気を通して冷温水の熱を空気に伝達し、その空気
をファン２Ａによって室内へ吹出すことによって達成す
る。なお、管路３は、往復管路を有している。The cold / hot water pipe 3 is connected to the absorption type cold / hot water machine 1.
A main pipe 3A, a plurality of sub pipes 3C to a plurality of indoor units 2, a branch pipe 3B connecting the main pipe 3A and the plurality of sub pipes 3C to branch cold and hot water, Consisting of Thereby, the chilled and heated water from one absorption chilled and heated water unit 1 is distributed to each indoor unit 2, and a multi air conditioning system can be configured. Further, the indoor unit 2 has a water-air heat exchange function and an air intake / outlet function. This means that the cold / hot water sent by the sub-line 3C passes through the heat exchange coil 2B of the indoor unit 2, and the heat of the cold / hot water is transmitted to the air through the air sucked by the fan 2A to the outside thereof. This is achieved by blowing the air into the room by the fan 2A. In addition, the pipeline 3 has a reciprocating pipeline.

【００１５】より詳しくは図３に示したように、冷却塔
ＣＴ、冷却水ポンプ（図示省略）、冷温水ポンプ（図示
省略）を有する１台の吸収式温水機１と、冷温水配管３
と、各々熱交換コイル２Ｂとファン２Ａを有する複数台
の室内機２と、吸収式冷温水機１を制御する冷温水機操
作盤４と、各々１台もしくは複数台の室内機を制御する
室内機コントローラ６と、冷温水機操作盤との間で通信
手段７によって通信を行い、室内機コントローラとの間
で通信手段８によって通信を行う集中制御盤５と、通信
手段１２によって集中制御盤５と通信を行う中央操作盤
９と、集中制御盤５に通信手段１３によって外気温度信
号を送る外気温度センサ１０と、集中制御盤５に通信手
段１４によって室内温湿度信号を送る温湿度センサ１１
とにより、システムが構成されている。More specifically, as shown in FIG. 3, one absorption type water heater 1 having a cooling tower CT, a cooling water pump (not shown), and a cold and hot water pump (not shown), and a cold and hot water pipe 3
And a plurality of indoor units 2 each having a heat exchange coil 2B and a fan 2A, a chiller / heater operation panel 4 for controlling the absorption chiller / heater 1, and an indoor unit for controlling one or more indoor units, respectively. A centralized control panel 5 that communicates between the unit controller 6 and the chiller / heater operation panel by a communication unit 7 and communicates with an indoor unit controller by a communication unit 8, and a centralized control panel 5 by a communication unit 12. A central operation panel 9 for communicating with the central control panel 5, an outside air temperature sensor 10 for transmitting an outside air temperature signal to the central control panel 5 by the communication means 13, and a temperature and humidity sensor 11 for transmitting an indoor temperature and humidity signal to the central control panel 5 by the communication means 14.
Thus, a system is configured.

【００１６】以下に動作を説明する。まず通常の冷房／
暖房運転を説明する。中央操作盤９は、本実施例の空調
システムを備えた建物の設備全体を統括する操作盤で、
中央操作盤９よりシステム起動信号を集中制御盤５に送
ることにより、この空調システムはスタンバイ状態とな
り、システムを構成するすべての制御盤及び機器が動作
可能で停止している状態となる。この状態で複数台ある
すべての室内機コントローラ６のうち最初の１台の室内
機コントローラで、室内機運転スイッチをオンすると、
室内機コントローラより集中制御盤に室内機の最初の１
台が運転状態となった信号が伝わり、集中制御盤５か
ら、冷温水機制御盤４に冷温水機起動信号が送られて、
冷温水機１が起動する。起動後、冷温水機は冷温水の冷
温水機出口における温度を検知して自動発停を行う。The operation will be described below. First, normal cooling /
The heating operation will be described. The central operation panel 9 is an operation panel that controls the entire facility of the building including the air conditioning system of the present embodiment.
By sending a system start signal from the central control panel 9 to the central control panel 5, this air conditioning system is in a standby state, and all control panels and devices constituting the system are operable and stopped. In this state, when the indoor unit operation switch is turned on by the first one indoor unit controller among all the plurality of indoor unit controllers 6,
The first one of the indoor units from the indoor unit controller to the centralized control panel
A signal indicating that the table is in an operating state is transmitted, and a centralized control panel 5 sends a chilled / hot water machine start signal to the chilled / hot water machine control panel 4,
The water heater 1 is started. After startup, the chiller / heater detects the temperature at the outlet of the chiller / heater and automatically starts and stops.

【００１７】次に、吸収式冷温水機が運転している状態
で複数台の室内機が停止してゆき、最後の１台の室内機
の室内機コントローラ６の室内機運転スイッチを切る
と、その信号が通信手段８を介して集中制御盤５に伝わ
る。すると集中制御盤５より冷温水機制御盤４に対し通
信手段７を介して冷温水機停止信号が伝わり、冷温水機
は冷温水の冷温水機出口温度にかかわらず停止する。冷
温水機が停止している状態で、中央操作盤９より集中制
御盤５にシステム停止信号が伝わると、システムは停止
状態となる。Next, when the plurality of indoor units are stopped while the absorption chiller / heater is operating, and the indoor unit operation switch of the indoor unit controller 6 of the last indoor unit is turned off, The signal is transmitted to the central control panel 5 through the communication means 8. Then, a cold / hot water machine stop signal is transmitted from the central control panel 5 to the cold / hot water machine control panel 4 via the communication means 7, and the cold / hot water machine is stopped regardless of the cold / hot water cold / hot water outlet temperature. When the system stop signal is transmitted from the central operation panel 9 to the central control panel 5 in a state where the water heater is stopped, the system is stopped.

【００１８】次に、冷温水機制御盤４に冷温水機停止信
号が伝わったときの冷温水機の動作を説明する。図１
は、本発明の吸収式冷温水機の一実施例の図である。図
4にその系統図を示す。この冷温水機は冷媒で希釈され
た希溶液を加熱して冷媒蒸気を発生させる作用をもつ高
温再生器２５、低温再生器２４および加熱手段であるバ
ーナ２６、冷房時には冷媒蒸気を冷却水により冷却凝縮
させる凝縮器２３と、凝縮した冷媒を蒸発させることに
より冷温水を冷却し、また暖房時には冷媒蒸気により冷
温水を加熱する蒸発器２１と、蒸発器で冷温水を冷却ま
たは加熱したのちの冷媒を冷媒蒸気発生時に生じた濃溶
液に吸収器２２で吸収または混合させて希溶液としたの
ち、溶液ポンプ２８にて高温再生器２５、低温再生器２
４に戻している。Next, the operation of the chiller / heater when the chiller / heater stop signal is transmitted to the chiller / heater control panel 4 will be described. FIG.
FIG. 1 is a diagram of an embodiment of an absorption type water cooling / heating machine of the present invention. Figure
Fig. 4 shows the system diagram. The chiller / heater has a high-temperature regenerator 25, a low-temperature regenerator 24, and a burner 26 serving as a heating unit that has the function of heating a dilute solution diluted with a refrigerant to generate a refrigerant vapor. In cooling, the refrigerant vapor is cooled by cooling water. A condenser 23 for condensing, cooling and hot water by evaporating the condensed refrigerant, and evaporator 21 for heating cold and hot water by refrigerant vapor during heating, and a refrigerant after cooling or heating the cold and hot water by the evaporator Is absorbed or mixed with the concentrated solution generated at the time of generation of the refrigerant vapor by the absorber 22 to form a dilute solution.
Returned to 4.

【００１９】冷房運転中に、冷温水機停止信号が冷温水
機制御盤４に伝わると冷温水機が備えている冷却水ポン
プ、冷温水ポンプ冷却塔がただちに停止し、バーナ２６
が消火する。この状態で、冷温水機内には濃溶液が存在
するため、停止後の冷却により結晶を生じないよう溶液
ポンプ２８は一定時間運転を継続し溶液を希釈する。こ
のとき吸収器２２において冷媒蒸気が吸収されると蒸発
器２１内の圧力が低下し、蒸発器２１の伝熱管部３７に
冷温水ポンプ停止によって停滞する冷温水が過度に冷却
されて凍結し、伝熱管を損傷させる可能性がある。そこ
で、凝縮器２３の底部の冷媒タンク３１に、冷房運転中
にたまっている冷媒液を、冷媒ブロー弁３０を冷温水機
停止信号によって開とすることにより、冷媒ブロー配管
３２を経由して吸収器２２に送りこみ、吸収器内の濃溶
液を稀釈して、冷媒蒸気吸収能力を奪うことにより、冷
温水の凍結を防止することができる。また、冷温水ポン
プ、冷却水ポンプを冷温水機停止信号を受けて直ちに停
止するので省エネとなる。During the cooling operation, when the chiller / heater stop signal is transmitted to the chiller / heater control panel 4, the cooling water pump and the chiller / heater pump cooling tower of the chiller / heater are immediately stopped, and the burner 26 is stopped.
Extinguishes fire. In this state, since the concentrated solution is present in the chiller / heater, the solution pump 28 continues to operate for a certain period of time to dilute the solution so that crystals are not generated by cooling after stopping. At this time, when the refrigerant vapor is absorbed in the absorber 22, the pressure in the evaporator 21 decreases, and the cold / hot water stagnant due to the stop of the cold / hot water pump in the heat transfer tube 37 of the evaporator 21 is excessively cooled and frozen, It may damage the heat transfer tube. Therefore, the refrigerant liquid accumulated in the refrigerant tank 31 at the bottom of the condenser 23 during the cooling operation is absorbed via the refrigerant blow pipe 32 by opening the refrigerant blow valve 30 by the chiller / heater stop signal. By sending the concentrated solution in the absorber to the concentrated solution in the absorber 22 to dilute the refrigerant vapor absorbing ability, freezing of cold and hot water can be prevented. Further, since the cold / hot water pump and the cooling water pump are stopped immediately upon receiving the cold / hot water machine stop signal, energy is saved.

【００２０】次に、冷房／暖房の運転モードの切換えに
ついて説明する。図３の実施例において集中制御盤５は
冷暖切換スイッチをもつ。冷暖切換スイッチを冷房から
暖房へもしくは暖房から冷房へ切りかえると、集中制御
盤５より冷温水機制御盤４へ冷暖切換信号が伝わる。冷
温水機は、この冷暖切換信号により電気的手段により、
自動的に運転モードが冷房から暖房へもしくは暖房から
冷房へ切りかわる機能を有していて、集中制御盤５より
ワンタッチで冷房／暖房の運転モードを切りかえる。Next, switching of the cooling / heating operation mode will be described. In the embodiment of FIG. 3, the central control panel 5 has a cooling / heating changeover switch. When the cooling / heating switching switch is switched from cooling to heating or from heating to cooling, a cooling / heating switching signal is transmitted from the centralized control panel 5 to the water / water heater control panel 4. The chiller / heater is electrically operated by the cooling / heating switching signal,
It has a function of automatically switching the operation mode from cooling to heating or from heating to cooling. The central control panel 5 switches the cooling / heating operation mode with one touch.

【００２１】なお、冷暖切換信号は集中制御盤５から冷
温水機制御盤４へ伝わると同時に室内機コントローラ６
に伝わり、室内機コントローラ６に内蔵する室内機制御
モードを冷房から暖房もしくは暖房から冷房に切りかえ
る。The cooling / heating switching signal is transmitted from the central control panel 5 to the chiller / heater control panel 4 and simultaneously the indoor unit controller 6
And switches the indoor unit control mode incorporated in the indoor unit controller 6 from cooling to heating or from heating to cooling.

【００２２】次に、バーナ２６の制御に関して説明す
る。図５は、バーナ２６の各ポジションに対する加熱量
の関係を示す図である。バーナ２６はＯＦＦ（加熱量ゼ
ロ）Ｌ0、 Ｈ1、Ｈ2の４つのポジションをもち、各々の
場合の加熱量の関係はＬ0＜Ｈ1＜Ｈ2 の順となってい
る。バーナ２６は、冷房のときはＯＦＦ、Ｌ0、Ｈ1の３
つのうちのどれか１つのポジションをとる。暖房のとき
はＯＦＦ、Ｌ0、Ｈ2のうちのどれか１つのポジションを
とる。冷房と暖房の切換は冷温水機制御盤４へ送られる
冷暖切換信号によって自動的におこなわれる。冷温水機
は冷温水の冷温水機出口温度を検知する手段を有してお
り、冷温水の出口に対応して、冷温水機制御盤４にて、
バーナのポジションを自動的に制御する。図６及び図７
は、冷房及び暖房での冷温水出口温度とバーナのポジシ
ョンの関係を示す図である。なお、図で明らかな通り、
冷房と暖房の各々の場合においてバーナのポジションに
対応する冷温水出口温度の設定には「強」「中」「弱」
の３種類の設定がある。室内機の負荷が極小の場合でも
バーナのＬ0 ポジションにより冷温水機の運転を継続
し、冷温水機の冷温水出口温度の負荷変動に起因する変
動幅を小さくすることができる。Next, control of the burner 26 will be described. FIG. 5 is a diagram showing the relationship between the amount of heating for each position of the burner 26. The burner 26 has four positions of OFF (zero heating amount) L0, H1, and H2, and the relationship between the heating amounts in each case is L0 <H1 <H2. Burner 26 is OFF, L0 and H1 during cooling.
Take one of the two positions. At the time of heating, it takes one of OFF, L0 and H2. Switching between cooling and heating is automatically performed by a cooling / heating switching signal sent to the chiller / heater control panel 4. The chiller / heater has means for detecting the temperature of the chiller / heater outlet at the chiller / heater.
Automatically controls burner position. 6 and 7
FIG. 4 is a diagram showing a relationship between a hot / cold water outlet temperature in cooling and heating and a burner position. In addition, as is clear from the figure,
In each case of cooling and heating, the setting of the hot / cold water outlet temperature corresponding to the burner position is "strong""medium""weak"
There are three types of settings: Even when the load on the indoor unit is extremely small, the operation of the chiller / heater can be continued by the L0 position of the burner, and the fluctuation width of the chiller / heater outlet temperature caused by the load change can be reduced.

【００２３】室内機の負荷を考慮に入れて、冷温水機の
バーナ２６のポジションを集中制御盤５から制御する方
法について説明する。各室内機が運転状態か停止状態か
は、室内機コントローラより集中制御盤５へ伝えられ
る。集中制御盤５では、あらかじめ登録された各室内機
の熱交換容量と運転している室内機の台数から室内機の
負荷率Ｑ（％）を積算する。A method for controlling the position of the burner 26 of the chiller / heater from the central control panel 5 in consideration of the load of the indoor unit will be described. Whether each indoor unit is in the operating state or the stopped state is transmitted from the indoor unit controller to the centralized control panel 5. The central control panel 5 integrates the load factor Q (%) of the indoor units from the registered heat exchange capacity of each indoor unit and the number of operating indoor units.

【００２４】Ｑがあらかじめ設定した値Ｑ1 以下となる
と集中制御盤５は冷温水機制御盤４に対し、冷温水出口
温度設定を変更して、バーナポジションＨ1又はＨ2の温
度範囲を、冷房の場合は高い方へ、暖房の場合は低い方
へとシフトさせ、図8及び図１０に示す設定に変更する
信号を出す。Ｑがあらかじめ設定した値Ｑ2（Ｑ1≦Ｑ
2） 以上になると、集中制御盤５は冷温水機制御盤４に
対し、冷温水出口温度設定を復帰して、図６に示す設定
に戻す信号を出す。When Q becomes equal to or less than the preset value Q1, the centralized control panel 5 changes the cold / hot water outlet temperature setting to the hot / cold water heater control panel 4 so as to change the temperature range of the burner position H1 or H2 to cooling. Shifts to the higher side in the case of heating and to the lower side in the case of heating, and issues a signal for changing to the settings shown in FIGS. 8 and 10. Q is a preset value Q2 (Q1 ≤ Q
2) When the above is completed, the centralized control panel 5 returns the cold / hot water outlet temperature setting to the cold / hot water machine control panel 4 and outputs a signal for returning to the setting shown in FIG.

【００２５】したがって、室内機の負荷率が小さいとき
には、主にバーナポジションがＬ0ポジションのみで冷
温水機が運転される。これにより、室内機の負荷が減少
した場合にそれに伴って冷温水出口の検出温度が次第に
低くなっていってからバーナをＬ0 に切りかえるのでは
なく、室内機の負荷の減少を直接検知することにより、
冷温水出口温度の変動幅をさらに小さくし、冷房の場合
の冷温水の温度低下による凍結や冷房の場合の室内の冷
えすぎ、暖房の場合の室内の暑すぎという現象を回避で
きる。また直接、室内の負荷率に応じてバーナの加熱熱
量を絞ることになるのでより省エネである。Therefore, when the load factor of the indoor unit is small, the chiller / heater is operated mainly when the burner position is only the L0 position. Thus, instead of switching the burner to L0 after the detected temperature of the cold / hot water outlet gradually decreases when the load on the indoor unit decreases, instead of directly detecting the decrease in the load on the indoor unit, ,
The fluctuation range of the cold / hot water outlet temperature can be further reduced, and the phenomenon of freezing due to a decrease in the temperature of the cold / hot water in the case of cooling, the excessive cooling of the room in the case of cooling, and the excessively hot room in the case of heating can be avoided. In addition, the amount of heating heat of the burner is directly reduced according to the load factor in the room, so that more energy is saved.

【００２６】次に、除湿運転について説明する。集中制
御盤５は集中制御盤５を設置した室内にある温湿度セン
サ１１より通信手段１４を介して、室内の温度及び湿度
の信号を受取り、室内の相対湿度ＲＨを算出する。な
お、温湿度センサ１１は集中制御盤５の内部に設置され
ていてもよい。また集中制御盤５は空調する室内に設置
されている。冷房運転モードのとき室内の相対湿度ＲＨ
があらかじめ設定された値ＲＨ1 よりも大きくなると集
中制御盤５は、冷温水機制御盤に対し冷温水の冷温水機
出口における設定温度を通常の冷房運転よりも低く、た
とえば図６においてｔ1＝７℃、ｔ2＝９℃の場合、ｔ1
を５℃、ｔ2を７℃と変更する指令を出す。同時に集中
制御盤５は室内機コントローラ６に対して、室内機ファ
ン２Ａの回転数を低回転数にする指令を出す。これによ
って、室内機で冷却される空気の温度が下がり空気中の
水分が室内機内部の熱交換コイル２Ｂ表面に結露して取
除かれ、室内が除湿されることにより、室内の快適性を
提供できる利点がある。相対湿度ＲＨがあらかじめ設定
された値ＲＨ2（ＲＨ1≧ＲＨ2） よりも低くなると集中
制御盤５は前記の指令を解除する。Next, the dehumidifying operation will be described. The centralized control panel 5 receives signals of the indoor temperature and humidity from the temperature / humidity sensor 11 in the room where the centralized control panel 5 is installed via the communication means 14, and calculates the indoor relative humidity RH. In addition, the temperature and humidity sensor 11 may be installed inside the centralized control panel 5. Further, the centralized control panel 5 is installed in a room to be air-conditioned. Indoor humidity RH in cooling operation mode
Becomes larger than a preset value RH1, the centralized control panel 5 sets the set temperature at the outlet of the chilled / hot water heater to the chilled / hot water heater control panel lower than the normal cooling operation. For example, in FIG. ° C, t2 = 9 ° C, t1
Is changed to 5 ° C and t2 to 7 ° C. At the same time, the centralized control panel 5 issues a command to the indoor unit controller 6 to reduce the rotation speed of the indoor unit fan 2A. As a result, the temperature of the air cooled in the indoor unit decreases, and moisture in the air is condensed on the surface of the heat exchange coil 2B inside the indoor unit to be removed, thereby providing indoor comfort by dehumidifying the room. There are advantages that can be done. When the relative humidity RH becomes lower than a preset value RH2 (RH1≥RH2), the central control panel 5 cancels the above-mentioned command.

【００２７】また、集中制御盤５は手動除湿スイッチを
もっている。手動除湿スイッチオンのとき、集中制御盤
５は温湿度センサ１１の信号に基いて前記の除湿の指令
又は除湿解除の指令を自動的に出す。手動除湿スイッチ
オフのとき、集中制御盤５は温湿度センサ１１の信号に
拘らず除湿の指令を出さない。除湿運転中に手動除湿ス
イッチをオフにすると集中制御盤５は除湿の指令を解除
する。The central control panel 5 has a manual dehumidification switch. When the manual dehumidification switch is on, the centralized control panel 5 automatically issues the dehumidification command or the dehumidification cancellation command based on the signal of the temperature and humidity sensor 11. When the manual dehumidification switch is off, the centralized control panel 5 does not issue a dehumidification command regardless of the signal of the temperature / humidity sensor 11. When the manual dehumidification switch is turned off during the dehumidification operation, the centralized control panel 5 cancels the dehumidification command.

【００２８】温湿度センサ１１を持たない場合、集中制
御盤５の温湿度センサ１１からの信号を受信する回路を
短絡すると、集中制御盤５は手動除湿スイッチオンで除
湿の指令を出し、手動除湿スイッチオフで除湿の指令を
解除する。If the temperature / humidity sensor 11 is not provided and the circuit for receiving the signal from the temperature / humidity sensor 11 of the centralized control panel 5 is short-circuited, the centralized control panel 5 issues a dehumidification command by turning on the manual dehumidification switch, and the manual dehumidification is performed. Release the dehumidification command when the switch is turned off.

【００２９】なお、温湿度センサ１１は空調する室内に
設置されて室内の温度、湿度を感知するかわりに、屋外
もしくは、建物の空調設備の外気導入口、外気導入ダク
ト途中等に設置され外気の温度、湿度を感知するように
構成してもよい。このとき、集中制御盤５は空調を行う
室内の温度、湿度に拘らず除湿運転の指令をだす。外気
の温度、湿度が前記の除湿運転の条件になっていても、
室内のユーザが除湿運転を必要としないとき、ユーザが
室内機コントローラ６を操作して、室内機ファン２Ａの
回転数を低回転数から中回転数もしくは高回転数に変更
するか、室温の設定値を予め定めた値よりも低くする
と、集中制御盤５はその操作を室内機コントローラ６か
らの信号により検知し、除湿の指令を解除する。また、
除湿運転は前記の手動除湿スイッチをオフにすることに
よっても解除できる。The temperature and humidity sensor 11 is installed in a room to be air-conditioned and senses the temperature and humidity in the room. Instead, the temperature and humidity sensor 11 is installed outdoors or in the middle of an outside air introduction port of an air conditioning system in a building or in the middle of an outside air introduction duct. You may comprise so that temperature and humidity may be sensed. At this time, the central control panel 5 issues a dehumidification operation command regardless of the temperature and humidity in the room where the air conditioning is performed. Even if the temperature and humidity of the outside air are the conditions of the dehumidifying operation,
When the indoor user does not need the dehumidifying operation, the user operates the indoor unit controller 6 to change the rotation speed of the indoor unit fan 2A from the low rotation speed to the middle rotation speed or the high rotation speed, or to set the room temperature. When the value is lower than a predetermined value, the centralized control panel 5 detects the operation by a signal from the indoor unit controller 6 and cancels the dehumidification command. Also,
The dehumidifying operation can also be canceled by turning off the manual dehumidifying switch.

【００３０】次に、外気温度に応じて冷温水機の冷温水
出口温度設定を変更する動作について説明する。集中制
御盤５は、別に設置された外気温度センサ１０より外気
温度の信号を、通信手段１３を介して受ける。冷房運転
モードのとき外気温度Ｔがあらかじめ設定された温度Ｔ
1よりも低くなると、集中制御盤５は冷温水機制御盤４
に対し、冷温水機の冷温水出口温度設定のパターンを図
６に示した「強」「中」「弱」の別に応じて「強」から
「中」へ、「中」から「弱」へ、「弱」は「弱」のまま
に変更する指令を出す。なお、冷温水出口温度設定のパ
ターンはあらかじめ、集中制御盤５のもつ手動スイッチ
にて選択し、集中制御盤５より冷温水制御盤４に初期の
設定指令が出される。Next, a description will be given of an operation of changing the setting of the chilled / hot water outlet temperature of the chilled / hot water machine according to the outside air temperature. The centralized control panel 5 receives a signal of the outside air temperature from the separately installed outside air temperature sensor 10 via the communication means 13. In the cooling operation mode, the outside air temperature T is set to a preset temperature T.
If it is lower than 1, the central control panel 5
On the other hand, the pattern for setting the outlet temperature of the chilled / hot water of the chilled / hot water machine is changed from “strong” to “medium” and “medium” to “weak” according to the “strong”, “medium” and “weak” shown in FIG. , "Weak" issues a command to change it to "weak". The pattern for setting the outlet temperature of the hot and cold water is selected in advance by a manual switch of the central control panel 5, and an initial setting command is issued from the central control panel 5 to the hot and cold water control panel 4.

【００３１】外気温度Ｔが予め設定された温度Ｔ2（Ｔ2
≧Ｔ1） よりも高くなると、集中制御盤５は冷温水機制
御盤４に対し、冷温水出口温度設定を復帰するよう指令
を出す。これにより、冷房運転で外気温度が低いときに
は自動的に冷温水の設定温度が上がり、冷温水機の省エ
ネルギーをはかることができる。The outside air temperature T is set to a preset temperature T2 (T2
If it is higher than ≧ T1), the centralized control panel 5 issues a command to the chiller / heater controller panel 4 to restore the chilled / hot water outlet temperature setting. Thus, when the outside air temperature is low in the cooling operation, the set temperature of the cold / hot water is automatically increased, and the energy of the water / hot water machine can be saved.

【００３２】次に集中制御盤５のシステム全体の運転管
理機能について説明する。集中制御盤５は室内機コント
ローラ６より通信手段８を介して、個々の室内機の運転
・停止・故障状態を示す信号を受け、それを集中制御盤
５の表示部に表示する。また、集中制御盤５は冷温水機
制御盤４より、冷温水機の運転・停止・故障状態および
故障内容を示す信号を通信手段７を介して受け、それを
集中制御盤５の表示部に表示する。Next, the operation management function of the entire system of the centralized control panel 5 will be described. The central control panel 5 receives a signal indicating the operation / stop / failure state of each indoor unit from the indoor unit controller 6 via the communication means 8, and displays the signal on the display unit of the central control panel 5. Further, the central control panel 5 receives a signal indicating the operation / stop / failure state of the chiller / heater from the chiller / heater controller 4 via the communication means 7 and displays the signal on the display section of the central controller 5. indicate.

【００３３】また、集中制御盤５は、冷温水機制御盤４
と各室内機コントローラ６に手動にて運転・停止信号を
出す手動運転機能をもつ。さらに、集中制御盤５は、各
室内機コントローラ６および冷温水機制御盤４に予め設
定したスケジュールで冷温水機ならびに各室内機の運転
停止指令を送るためのスケジュールタイマーをもつ。Further, the central control panel 5 is provided with
And a manual operation function for manually issuing an operation / stop signal to each indoor unit controller 6. Further, the centralized control panel 5 has a schedule timer for sending a command to stop the operation of the chiller / heater and the respective indoor units according to a preset schedule to the respective indoor unit controllers 6 and the chiller / heater control panel 4.

【００３４】以上の機能により、集中制御盤５によって
室内機および冷温水機を含めた空調システム全体の運転
管理をおこなうことができ、管理効率の向上が達成され
る。With the above functions, the centralized control panel 5 can manage the operation of the entire air-conditioning system including the indoor unit and the chiller / hot-water unit, thereby improving the management efficiency.

【００３５】図１０は、本発明の他の実施例を示す図で
あり、図３の実施例とは１つの集中制御盤５に対し、冷
温水機１が複数台設置され、冷温水機の入口側と出口側
の冷温水配管に、冷温水集合管３Ｄおよび３Ｅを設け、
複数の冷温水機制御盤４と通信手段６を介して通信し、
集中制御盤５と通信手段７Ａを介して通信し、台数制御
盤１５が設置されている点が異なる。その他の構成は同
一である。FIG. 10 is a view showing another embodiment of the present invention. In the embodiment shown in FIG. 3, a plurality of chiller / hot water heaters 1 are provided for one central control panel 5, and Cold and hot water pipes 3D and 3E are provided in the cold and hot water pipes on the inlet and outlet sides,
It communicates with a plurality of water / water heater control panels 4 via communication means 6,
It differs from the central control panel 5 through the communication means 7A in that a number control panel 15 is provided. Other configurations are the same.

【００３６】以下、本実施例の動作を説明する。まず通
常の冷房／暖房運転を説明する。中央操作盤９は、本実
施例の空調システムを備えた建物の設備全体を統括する
操作盤で中央操作盤９よりシステム起動信号を集中制御
盤５に送ることにより、この空調システムはスタンバイ
状態となり、システムを構成するすべての制御盤及び機
器が動作可能で停止している状態となる。この状態で複
数台あるすべての室内機コントローラのうち最初の１台
の室内機コントローラで、室内機運転スイッチをオンす
ると、室内機コントローラより集中制御盤５に室内機の
最初の１台が運転状態となった信号が伝わり、集中制御
盤５から台数制御盤１５に冷温水機起動信号が送られ
る。台数制御盤１５にて、その内蔵する運転冷温水機選
定アルゴリズムに従って選定された冷温水機の冷温水機
制御盤４に台数制御盤１５から冷温水起動信号が送ら
れ、冷温水機が起動する。起動後冷温水機は、冷温水の
冷温水機出口における温度を検知して自動発停を行う。The operation of this embodiment will be described below. First, normal cooling / heating operation will be described. The central control panel 9 is a control panel for controlling the entire facilities of the building provided with the air conditioning system of the present embodiment. The central control panel 9 sends a system start signal to the central control panel 5 so that the air conditioning system enters a standby state. , All the control panels and devices constituting the system are operable and stopped. In this state, when the indoor unit operation switch is turned on by the first indoor unit controller among all the indoor unit controllers, the first indoor unit is operated by the indoor unit controller on the centralized control panel 5. Is transmitted from the centralized control panel 5 to the number-of-units control panel 15 to send a water / water heater start signal. In the number control panel 15, a chill / hot water start signal is sent from the number control panel 15 to the chill / water heater control panel 4 of the chiller / heater selected according to the built-in operation chiller / heater selection algorithm, and the chiller / heater is started. . After start-up, the chiller / heater detects the temperature at the outlet of the chiller / heater of the hot / cold water and automatically starts and stops.

【００３７】次に吸収式冷温水機が運転している状態
で、複数台の室内機が停止してゆき、最後の１台の室内
機の室内機コントローラの室内機運転スイッチを切る
と、その信号が通信手段８を介して集中制御盤５に伝わ
る。すると、集中制御盤５より台数制御盤１５に対して
吸収式冷温水機停止信号が送られ、台数制御盤１５から
冷温水機制御盤４に冷温水機停止信号を送り、すべての
吸収式冷温水機は、冷温水の冷温水機出口温度にかかわ
らず停止する。吸収式冷温水機１が停止している状態
で、中央操作盤９より集中制御盤５にシステム停止信号
が伝わるとシステムは停止状態となる。Next, while the absorption-type water heater / heater is operating, the plurality of indoor units are stopped, and the indoor unit operation switch of the indoor unit controller of the last one indoor unit is turned off. The signal is transmitted to the central control panel 5 through the communication means 8. Then, an absorption type chiller / heater stop signal is sent from the centralized control panel 5 to the number controller 15, and a chiller / heater stop signal is sent from the number control panel 15 to the chiller / heater control panel 4, and all absorption-type cold / hot The water machine is stopped regardless of the outlet temperature of the hot and cold water. When the system stop signal is transmitted from the central control panel 9 to the central control panel 5 in a state where the absorption chiller / heater 1 is stopped, the system is stopped.

【００３８】冷温水機制御盤４に冷温水機停止信号が伝
わったときの吸収式冷温水機１の動作は既に説明した。The operation of the absorption chiller / heater 1 when the chiller / heater stop signal is transmitted to the chiller / heater control panel 4 has already been described.

【００３９】次に冷房／暖房の運転モードの切換えにつ
いて説明する。図１０の実施例において集中制御盤５は
冷暖切換スイッチをもつ。冷暖切換スイッチを冷房から
暖房へもしくは暖房から冷房へ切りかえると、集中制御
盤５より台数制御盤１５へ冷暖切換信号が伝わり、台数
制御盤１５からすべての冷温水機制御盤４に対し冷暖切
換信号が伝わる。吸収式冷温水機は、この冷暖切換信号
により、電気的手段が自動的に運転モードを冷房から暖
房へもしくは暖房から冷房へ切りかえる機能を有してい
る。集中制御盤５よりワンタッチで冷房／暖房の運転モ
ードを切りかえることができる。なお、冷暖切換信号は
集中制御盤５から冷温水機制御盤４へ伝わると同時に室
内機コントローラ６に伝わり、室内機コントローラ６に
内蔵する室内機制御モードを冷房から暖房もしくは暖房
から冷房に切りかえる。Next, switching of the cooling / heating operation mode will be described. In the embodiment of FIG. 10, the centralized control panel 5 has a cooling / heating switching switch. When the cooling / heating switching switch is switched from cooling to heating or from heating to cooling, a cooling / heating switching signal is transmitted from the centralized control panel 5 to the number control panel 15, and the cooling / heating switching signal is transmitted from the number control panel 15 to all the cooling / heating water control panels 4. Is transmitted. The absorption chiller / heater has a function in which the electric means automatically switches the operation mode from cooling to heating or from heating to cooling in response to the cooling / heating switching signal. The operation mode of cooling / heating can be switched with one touch from the central control panel 5. Note that the cooling / heating switching signal is transmitted from the central control panel 5 to the water / water heater control panel 4 and also to the indoor unit controller 6, and switches the indoor unit control mode incorporated in the indoor unit controller 6 from cooling to heating or from heating to cooling.

【００４０】バーナ２６の制御については既に説明し
た。The control of the burner 26 has already been described.

【００４１】次に、複数台の吸収式冷温水機１のうち、
何台を運転するか、運転台数の決定方法を説明する。各
室内機が運転状態か停止状態かは、室内機コントローラ
より集中制御盤５へ伝えられる。集中制御盤５では、予
め登録された各室内機の熱交換容量と運転している室内
機の台数から室内機の負荷率Ｑ（％）を積算する。Next, among the plurality of absorption type water chillers / heaters 1,
How to drive the vehicle and how to determine the number of vehicles to be driven will be described. Whether each indoor unit is in the operating state or the stopped state is transmitted from the indoor unit controller to the centralized control panel 5. The central control panel 5 integrates the load factor Q (%) of the indoor units from the registered heat exchange capacity of each indoor unit and the number of operating indoor units.

【００４２】集中制御盤５内部に、Ｑに対応して吸収式
冷温水機の運転台数を決定するアルゴリズムをもち、決
定した台数の信号を台数制御盤１５に送る。運転台数信
号を受けた台数制御盤は、その運転台数指令を内部にも
つ。各吸収式冷温水機の運転時間平準化のためのローテ
ーション機能により、運転する吸収式冷温水機を決定
し、各吸収式冷温水機の制御盤に運転停止信号を出す。The centralized control panel 5 has an algorithm for determining the number of operating water absorption and cooling water heaters corresponding to Q, and sends a signal of the determined number to the number control panel 15. The number control panel that receives the operating number signal has the operating number command inside. A rotation function for equalizing the operation time of each absorption chiller / heater determines an absorption chiller / heater to be operated and issues an operation stop signal to a control panel of each absorption chiller / heater.

【００４３】吸収式冷温水機の運転台数が１台のとき、
その１台に対して既に説明したように、室内機の負荷を
考慮に入れて吸収式冷温水機のバーナ２６のポジション
を集中制御盤５より制御する。吸収式冷温水機の運転台
数決定アルゴリズムを、台数制御盤の中にもっていても
よい。When one absorption chiller / heater is in operation,
As described above for one of the units, the position of the burner 26 of the absorption chiller / heater is controlled from the central control panel 5 in consideration of the load of the indoor unit. The algorithm for determining the number of operating absorption-type water heaters may be included in the number control panel.

【００４４】図１１は、吸収式冷温水機の運転台数を決
定するアルゴリズムの例である。吸収式冷温水機の台数
に応じて図１１のグラフに従って運転台数が決定され
る。なお、室内機負荷率Ｑが０％のときは、スケジュー
ルタイマーによる予備運転を考慮して吸収式冷温水機の
運転台数は１台とする。FIG. 11 shows an example of an algorithm for determining the number of operating water absorption and cooling water heaters. The number of operation units is determined according to the graph of FIG. 11 according to the number of absorption type water heaters. When the indoor unit load factor Q is 0%, the number of operating absorption-type water heaters is one in consideration of the preliminary operation by the schedule timer.

【００４５】吸収式冷温水機の運転台数を決定するアル
ゴリズムの他の例を説明する。台数制御盤１５は吸収式
冷温水機の入口側の冷温水集合管３Ｄの温度を検出する
センサーをもっている。Another example of an algorithm for determining the number of operating water absorption and cooling water heaters will be described. The number control panel 15 has a sensor for detecting the temperature of the cold / hot water collecting pipe 3D on the inlet side of the absorption type cold / hot water machine.

【００４６】まず、集中制御盤５にて図１１に示すアル
ゴリズムにて吸収式冷温水機の運転台数Ｎを決定し、台
数制御盤１５に対し、集中制御盤５よりＮ台運転するよ
う指令を出す。台数制御盤１５では運転指令台数Ｎと現
在運転中の吸収式冷温水機の台数Ｎ0を比較し、 （１）Ｎ＝Ｎ0のとき、現在の運転状態を継続する。 （２）Ｎ＞Ｎ0のとき、吸収式冷温水機の運転台数をＮ0
からＮに増やす。Ｎ台運転に切りかえて一定時間（Ｔ0
分） 経過した後、室内機負荷率によらず、冷温水機の
入口側の冷温水集合管の冷温水温度に基いて、他のアル
ゴリズム（開示せず）にて運転台数を決定する。First, the central control panel 5 determines the number N of operating absorption-type water heaters and cold water heaters according to the algorithm shown in FIG. 11, and instructs the number control panel 15 to operate the N units from the central control panel 5. put out. The number control panel 15 compares the number N of operation commands with the number N0 of absorption-type water heaters currently in operation. (1) When N = N0, the current operation state is continued. (2) When N> N0, the operating number of absorption chiller / heater is N0
To N. Switch to N-unit operation for a fixed time (T0
Minutes) After the elapse, the number of operating units is determined by another algorithm (not disclosed) based on the cold / hot water temperature of the cold / hot water collecting pipe on the inlet side of the cold / hot water unit regardless of the indoor unit load factor.

【００４７】（３）Ｎ＜Ｎ0のとき吸収式冷温水機の運
転台数をＮ0からＮに減らす。Ｎ台運転に切りかえて一
定時間（Ｔ0分）経過した後、室内機負荷率によらず、
吸収式冷温水機の入口側の冷温水集合管の冷温水温度に
基いて他のアルゴリズム（開示せず）にて運転台数を決
定する。(3) When N <N0 The number of operating absorption-type water heaters is reduced from N0 to N. After a certain period of time (T0 minutes) after switching to N-unit operation, regardless of the indoor unit load factor,
The number of operating units is determined by another algorithm (not disclosed) based on the cold / hot water temperature of the cold / hot water collecting pipe on the inlet side of the absorption type cold / hot water machine.

【００４８】（４）運転台数をＮ0台からＮ台に切りか
えてＴ0分以内に同じ台数の運転指令が集中制御盤５か
ら来た場合、運転台数切換後の時間をカウントするタイ
マーをクリヤーせず、そのままカウントを継続する。(4) If the number of operating units is switched from N0 to N and the same number of operation commands comes from the central control panel 5 within T0 minutes, the timer for counting the time after switching the number of operating units is not cleared. , And continue counting.

【００４９】なお、吸収式冷温水機の冷温水集合管の温
度を検出するセンサーは、吸収式冷温水機の出口側の冷
温水集合管３Ｅに設けてもよい。以上説明した室内機負
荷率を考慮して吸収式冷温水機の運転台数を決定するこ
とにより、室内機の負荷の増大や減少を直接反映して吸
収式冷温水機の運転台数を決定するので、吸収式冷温水
機の冷温水出口温度の変動幅を小さくし、室内の空調の
快適性を達成するとともに、吸収式冷温水機の省エネル
ギーを図ることができる。The sensor for detecting the temperature of the hot / cold water collecting pipe of the absorption type hot / cold water machine may be provided in the cold / hot water collecting pipe 3E on the outlet side of the absorption type hot / cold hot water machine. By determining the number of operating absorption chiller / water heaters in consideration of the above-described indoor unit load factor, the number of operating absorption chiller / heater can be determined by directly reflecting the increase or decrease in the load of the indoor unit. In addition, the fluctuation range of the outlet temperature of the hot / cold water of the absorption chiller / heater can be reduced to achieve the comfort of indoor air conditioning, and the energy saving of the absorption chiller / heater can be achieved.

【００５０】次に除湿運転について説明する。集中制御
盤５は、集中制御盤５を設置した室内にある温湿度セン
サ１１より通信手段１４を介して、室内の温度及び湿度
の信号を受取り、室内の相対湿度ＲＨを算出する。な
お、温湿度センサ１１は集中制御盤５の内部に設置され
ていてもよい。また集中制御盤５は空調する室内に設置
されている。冷房運転モードのとき室内の相対湿度ＲＨ
が予め設定された値ＲＨ1よりも大きくなると、集中制
御盤５は、台数制御盤１５を経由して冷温水機制御盤に
対し冷温水の吸収式冷温水機の出口における設定温度を
通常の冷房運転よりも低く、例えば図６においてｔ1＝
７℃、ｔ2＝９℃の場合、ｔ1を５℃、ｔ2を７℃に変更
する指令を出す。同時に集中制御盤５は室内機コントロ
ーラ６に対して室内機ファン２Ａの回転数を低回転数に
する指令を出す。これによって室内機で冷却される空気
の温度が下がり空気中の水分が室内機内部の熱交換コイ
ル２Ｂ表面に結露して取除かれ、室内が除湿されること
により、室内の快適性を提供できる利点がある。相対湿
度ＲＨが予め設定された値ＲＨ2（ＲＨ1≧ＲＨ2）より
も低くなると、集中制御盤５は台数制御盤１５を経由し
て冷温水機制御盤４に対し前記の指令を解除する。Next, the dehumidifying operation will be described. The centralized control panel 5 receives signals of the temperature and humidity of the room from the temperature / humidity sensor 11 in the room where the centralized control panel 5 is installed via the communication means 14 and calculates the relative humidity RH of the room. In addition, the temperature and humidity sensor 11 may be installed inside the centralized control panel 5. Further, the centralized control panel 5 is installed in a room to be air-conditioned. Indoor humidity RH in cooling operation mode
Becomes larger than the preset value RH1, the centralized control panel 5 sends the set temperature at the outlet of the absorption type chiller / heater to the chiller / heater through the number control panel 15 to the normal cooling. Lower than the operation, for example, in FIG.
When 7 ° C. and t2 = 9 ° C., a command to change t1 to 5 ° C. and t2 to 7 ° C. is issued. At the same time, the centralized control panel 5 issues a command to the indoor unit controller 6 to reduce the rotation speed of the indoor unit fan 2A. As a result, the temperature of the air cooled in the indoor unit is reduced, and moisture in the air is condensed on the surface of the heat exchange coil 2B inside the indoor unit and removed, and the indoor is dehumidified, thereby providing indoor comfort. There are advantages. When the relative humidity RH becomes lower than a preset value RH2 (RH1 ≧ RH2), the centralized control panel 5 cancels the above-mentioned command to the water / water heater control panel 4 via the number control panel 15.

【００５１】また、集中制御盤５は手動除湿スイッチを
もっている。手動除湿スイッチオンのとき、集中制御盤
５は温湿度センサ１１の信号に基いて前記の除湿の指令
または除湿解除の指令を自動的に出す。手動除湿スイッ
チオフのとき、集中制御盤５は温湿度センサ１１の信号
に拘らず除湿の指令を出さない。除湿運転中に手動除湿
スイッチをオフにすると、集中制御盤５は除湿の指令を
解除する。温湿度センサ１１を持たない場合、集中制御
盤５の温湿度センサ１１からの信号を受信する回路を短
絡すると、集中制御盤５は手動除湿スイッチオンで除湿
の指令を出し、手動除湿スイッチオフで除湿の指令を解
除する。The central control panel 5 has a manual dehumidification switch. When the manual dehumidification switch is on, the centralized control panel 5 automatically issues the dehumidification command or the dehumidification cancellation command based on the signal of the temperature and humidity sensor 11. When the manual dehumidification switch is off, the centralized control panel 5 does not issue a dehumidification command regardless of the signal of the temperature / humidity sensor 11. When the manual dehumidification switch is turned off during the dehumidification operation, the centralized control panel 5 cancels the dehumidification command. When the temperature / humidity sensor 11 is not provided, when the circuit for receiving the signal from the temperature / humidity sensor 11 of the centralized control panel 5 is short-circuited, the centralized control panel 5 issues a dehumidification command when the manual dehumidification switch is on, and when the manual dehumidification switch is off. Cancel the dehumidification command.

【００５２】なお、温湿度センサ１１を空調する室内に
設置して室内の温度や湿度を感知する代わりに、屋外も
しくは建物の空調設備の外気導入口や外気導入ダクトの
途中等に設置して、外気の温度や湿度を感知するように
構成してもよい。このとき、集中制御盤５は空調する室
内の温度や湿度に拘らず除湿運転の指令をだす。外気の
温度や湿度が前記の除湿運転の条件になっていても、室
内のユーザが除湿運転を必要としないとき、ユーザが室
内機コントローラ６を操作して、室内機ファン２Ａの回
転数を低回転数から中回転数もしくは高回転数に変更す
るか、室温の設定値を予め定めた値よりも低くすると、
集中制御盤５はその操作を室内機コントローラ６からの
信号により検知し、除湿の指令を解除する。また、除湿
運転は前記の手動除湿スイッチをオフにすることによっ
ても解除できる。Instead of installing the temperature / humidity sensor 11 in the room to be air-conditioned and sensing the temperature and humidity in the room, the temperature and humidity sensor 11 is installed outdoors or in the middle of the outside air introduction port or outside air introduction duct of the air conditioning equipment in the building. You may comprise so that the temperature and humidity of outside air may be sensed. At this time, the central control panel 5 issues a dehumidification operation command regardless of the temperature and humidity in the room to be air-conditioned. Even if the temperature and humidity of the outside air are in the above-described condition of the dehumidifying operation, when the indoor user does not need the dehumidifying operation, the user operates the indoor unit controller 6 to lower the rotation speed of the indoor unit fan 2A. If you change the number of rotations to medium or high, or set the room temperature lower than a predetermined value,
The centralized control panel 5 detects the operation by a signal from the indoor unit controller 6, and cancels the dehumidification command. The dehumidifying operation can also be canceled by turning off the manual dehumidifying switch.

【００５３】次に、外気温度に応じて吸収式冷温水機の
冷温水出口温度設定を変更する動作について説明する。
集中制御盤５は、別に設置された外気温度センサ１０よ
り外気温度の信号を、通信手段１３を介して受ける。冷
房運転モードのとき外気温度Ｔが予め設定された温度Ｔ
1 よりも低くなると、集中制御盤５は台数制御盤１５を
経由して冷温水機制御盤４に対し、吸収式冷温水機の冷
温水出口温度設定のパターンを図６に示した「強」
「中」「弱」の別に応じて「強」から「中」へ、「中」
から「弱」へ、「弱」は「弱」のままに変更する指令を
出す。尚、冷温水出口温度設定のパターンはあらかじ
め、集中制御盤５のもつ手動スイッチにて選択し、集中
制御盤５より台数制御盤１５を経由して冷温水制御盤に
初期の設定指令が出される。Next, the operation of changing the setting of the outlet temperature of the hot / cold water of the absorption hot / cold water heater according to the outside air temperature will be described.
The centralized control panel 5 receives a signal of the outside air temperature from the separately installed outside air temperature sensor 10 via the communication means 13. In the cooling operation mode, the outside air temperature T is set to a preset temperature T.
When the temperature is lower than 1, the centralized control panel 5 sends the pattern of the chilled / hot water outlet temperature setting of the absorption type chilled / hot water machine to the chilled / hot water machine control panel 4 via the number control board 15 as shown in FIG.
From "strong" to "medium" depending on the "medium""weak","medium"
To "weak", and "weak" issues a command to change it to "weak". Note that the pattern of the hot / cold water outlet temperature setting is previously selected by a manual switch of the central control panel 5, and an initial setting command is issued from the central control panel 5 to the cold / hot water control panel via the number control panel 15. .

【００５４】外気温度Ｔが予め設定された温度Ｔ2（Ｔ2
≧Ｔ1） よりも高くなると、集中制御盤５は台数制御盤
１５を経由して冷温水機制御盤４に対し、冷温水出口温
度設定を復帰するよう指令を出す。これにより、冷房運
転で外気温度が低いときには自動的に冷温水の設定温度
が上がり、吸収式冷温水機の省エネルギーを図ることが
できる。The outside air temperature T is set to a preset temperature T2 (T2
If it is higher than ≧ T1), the centralized control panel 5 issues a command to the chilled / hot water machine control panel 4 via the number control panel 15 to restore the chilled / hot water outlet temperature setting. Thereby, when the outside air temperature is low in the cooling operation, the set temperature of the cold / hot water is automatically increased, and energy saving of the absorption-type hot / cold water heater can be achieved.

【００５５】次に集中制御盤５のシステム全体の運転管
理機能について説明する。集中制御盤５は室内機コント
ローラ６より通信手段８を介して、個々の室内機の運転
・停止・故障状態を示す信号を受け、それを集中制御盤
５の表示部に表示する。また、集中制御盤５はすべての
冷温水機制御盤４より、吸収式冷温水機の運転・停止・
故障状態および故障内容を示す信号をまず台数制御盤１
５に集めたのち通信手段７Ａを介して受け、それを集中
制御盤５の表示部に表示する。さらに、集中制御盤５
は、台数制御盤１５経由で冷温水機制御盤４と各室内機
コントローラ６に手動にて運転・停止信号を出す手動運
転機能をもつ。集中制御盤５は各室内機コントローラ６
および台数制御盤１５に予め設定したスケジュールで吸
収式冷温水機ならびに各室内機の運転停止指令を送るた
めのスケジュールタイマーをも有する。Next, the operation management function of the centralized control panel 5 of the entire system will be described. The central control panel 5 receives a signal indicating the operation / stop / failure state of each indoor unit from the indoor unit controller 6 via the communication means 8, and displays the signal on the display unit of the central control panel 5. In addition, the centralized control panel 5 controls the operation of the absorption type chiller / heater,
First, a signal indicating the failure state and the content of the failure is transmitted to the unit control panel 1.
After being collected in the central control panel 5, the information is received via the communication means 7A and displayed on the display unit of the central control panel 5. Furthermore, the central control panel 5
Has a manual operation function of manually issuing an operation / stop signal to the water / water heater control panel 4 and each indoor unit controller 6 via the number control panel 15. The central control panel 5 is provided with each indoor unit controller 6
Also, it has a schedule timer for sending an operation stop command for the absorption type water heater / heater and each indoor unit on a schedule preset in the unit control panel 15.

【００５６】以上の機能により、集中制御盤５によって
室内機および吸収式冷温水機を含めた空調システム全体
の運転を管理することができ、管理効率の向上が達成さ
れる。With the above functions, the centralized control panel 5 can manage the operation of the entire air conditioning system including the indoor units and the absorption-type chiller / heater, thereby improving management efficiency.

【００５７】次に、図３および図１０に示すシステムで
用いる冷温水機について説明する。図１は吸収式冷温水
機の本体シェル断面図である。１つシェルの中に並列配
置された蒸発器２１と吸収器２２、および独立して蒸発
器２１、吸収器２２と並列に配置された高温再生器２５
に対し、凝縮器２３および低温再生器２４を並列に蒸発
器２１、吸収器２２の上部に配置する。これにより、高
温再生器２５で発生した冷媒蒸気が低温再生器２４内で
溶液を加熱して、冷媒蒸気を発生させ、濃縮された溶液
が低温再生器２４から下方へ戻る。濃縮された溶液は、
高温再生器２５から戻ってくる濃溶液と合流する。合流
液は、エゼクタ４４により吸収液のスプレーツリー４１
へと押し上げられる際、低温再生器２４内の溶液の位置
ヘッドが大きくなり、溶液が戻りやすくなる。したがっ
て、負荷が少いときにおこりやすい溶液の循環不良を防
止できる。Next, a chiller / heater used in the system shown in FIGS. 3 and 10 will be described. FIG. 1 is a sectional view of a main body shell of an absorption type water heater. Evaporator 21 and absorber 22 arranged in parallel in one shell, and high-temperature regenerator 25 independently arranged in parallel with evaporator 21 and absorber 22
On the other hand, a condenser 23 and a low-temperature regenerator 24 are arranged in parallel above the evaporator 21 and the absorber 22. As a result, the refrigerant vapor generated in the high-temperature regenerator 25 heats the solution in the low-temperature regenerator 24 to generate refrigerant vapor, and the concentrated solution returns downward from the low-temperature regenerator 24. The concentrated solution is
It merges with the concentrated solution returned from the high temperature regenerator 25. The combined liquid is sprayed by the ejector 44 onto the spray tree 41 of the absorbing liquid.
When pushed up, the position head of the solution in the low-temperature regenerator 24 becomes large, and the solution is easily returned. Therefore, it is possible to prevent poor circulation of the solution, which tends to occur when the load is small.

【００５８】また、蒸発器２１と凝縮器２３および吸収
器２２と低温再生器２４をシェル内にて仕切る壁を形成
している仕切板４５は、それ自体がへの字形に折り曲げ
られて、凝縮器２３と低温再生器２４を仕切る壁も兼ね
ている。低温再生器２４内は、高温再生器２５で発生さ
れた蒸気により熱せられて、過熱状態となっている。凝
縮器２３との間を仕切る壁が１枚板の場合、この壁も過
度に熱せられて、凝縮器の伝熱管部４０で冷却されて凝
縮した冷媒液が、この壁にふれて再度蒸発し凝縮器の冷
却効果を阻害する。本発明の構造では、への字形に曲げ
ることによって板と板の間に空間をもたせ、断熱壁とす
ることにより、その問題を解決し、かつ蒸発器２１と凝
縮器２３および吸収器２２と低温再生器２４を仕切る板
材と兼用させて、部品点数を減らしている。The partition plate 45, which forms a wall for partitioning the evaporator 21 and the condenser 23 and the absorber 22 and the low-temperature regenerator 24 in the shell, is bent in a U-shape to form a condenser. It also doubles as a wall separating the unit 23 and the low-temperature regenerator 24. The inside of the low-temperature regenerator 24 is heated by the steam generated by the high-temperature regenerator 25 and is in an overheated state. If the wall separating the condenser 23 is a single plate, this wall is also excessively heated, and the refrigerant liquid cooled and condensed in the heat transfer tube portion 40 of the condenser touches the wall and evaporates again. Impedes the cooling effect of the condenser. The structure of the present invention solves the problem by providing a space between the plates by bending into a U-shape and forming a heat insulating wall, and also eliminates the evaporator 21 and the condenser 23 and the absorber 22 and the low-temperature regenerator. The number of parts is reduced by also serving as a plate material for partitioning 24.

【００５９】図１２は、本発明の吸収式冷温水機の他の
実施例である。図に示す実施例は、図４の実施例と気泡
ポンプの構成が異なっている。一般に、気泡ポンプは図
４に示すように、暖房時に再生器で発生した冷媒蒸気が
凝縮器から蒸発器に流入する通路であるＵシール管３６
と、蒸発器に流入した冷媒蒸気が蒸発器で凝縮し冷媒液
となり、蒸発器の底部にたまった冷媒液を冷媒蒸気の流
体力により、冷媒蒸気に随伴して吸収器へと移送する気
泡ポンプリフト主管２９、Ｕシール管３６と気泡ポンプ
リフト主管２９の間の分岐管、気泡ポンプが冷媒液を吸
い込むための気泡ポンプ吸込配管４８とを備えている。
これに対し、図１２に示す実施例では、冷媒液を冷媒蒸
気に随伴して吸収器へと移送する作用をＵシール管３６
に行わせ、Ｕシール管３６と気泡ポンプリフト主管２９
を兼用とすることにより、配管系統の簡素化と低コスト
化を実現できる。FIG. 12 shows another embodiment of the absorption chiller / heater of the present invention. The embodiment shown in the drawing is different from the embodiment of FIG. 4 in the configuration of the bubble pump. Generally, as shown in FIG. 4, a bubble pump is a U-sealed pipe 36 which is a passage through which refrigerant vapor generated in a regenerator during heating flows from a condenser to an evaporator.
And a bubble pump that condenses the refrigerant vapor flowing into the evaporator into a refrigerant liquid in the evaporator, and transfers the refrigerant liquid accumulated at the bottom of the evaporator to the absorber along with the refrigerant vapor by the fluid force of the refrigerant vapor. The lift main pipe 29, a branch pipe between the U seal pipe 36 and the bubble pump lift main pipe 29, and a bubble pump suction pipe 48 for the bubble pump to suck the refrigerant liquid are provided.
In contrast, in the embodiment shown in FIG. 12, the operation of transferring the refrigerant liquid to the absorber accompanying the refrigerant vapor is performed by the U seal pipe 36.
U-seal pipe 36 and bubble pump lift main pipe 29
As a result, simplification of the piping system and cost reduction can be realized.

【００６０】次に、本実施例の吸収式冷温水機の冷房運
転時にバーナを着火させるときの制御について説明す
る。前述したように、例えば冷温水出口温度設定が
「強」のとき、冷水出口温度ｔ1でバーナはオフとな
り、冷水出口温度ｔ2でバーナは着火動作に入る。バー
ナをオンとするか、オフとするかの制御は、吸収式冷温
水機の持つ冷水出口温度検出手段により検出された冷水
出口温度によりオンオフする冷水出口サーモスイッチに
よって行われる。Next, the control for igniting the burner during the cooling operation of the absorption chiller / heater of this embodiment will be described. As described above, for example, when the cold / hot water outlet temperature setting is “strong”, the burner is turned off at the cold water outlet temperature t1, and the burner starts the ignition operation at the cold water outlet temperature t2. Whether the burner is turned on or off is controlled by a chilled water outlet thermoswitch that is turned on and off according to the chilled water outlet temperature detected by the chilled water outlet temperature detecting means of the absorption chiller / heater.

【００６１】図１３に示すように、バーナが消火（燃焼
していない）の状態で、冷水出口温度が上昇し温度ｔ2
に達すると、冷水出口サーモスイッチはオンとなりバー
ナは着火動作に入り、冷水出口サーモスイッチはオンか
ら時間Ｔ0の間プリパージした後、着火する。冷却水ポ
ンプ、冷媒ポンプおよび溶液ポンプは冷水出口サーモス
イッチがオフしてバーナが消火された後も一定時間は稀
釈運転され、その後停止する。稀釈運転が完了した後
に、冷水出口サーモスイッチがオンしてバーナがプリパ
ージを開始すると、同時に冷却水ポンプ、冷媒ポンプお
よび溶液ポンプが起動される。稀釈運転が完了する前に
冷水出口サーモスイッチがオンしてバーナがプリパージ
を開始すると、冷却水ポンプ、冷媒ポンプおよび溶液ポ
ンプは引続き運転される。As shown in FIG. 13, when the burner is extinguished (not burning), the chilled water outlet temperature rises and the temperature t2 rises.
Is reached, the chilled water outlet thermo switch is turned on, the burner starts an ignition operation, and the chilled water outlet thermo switch ignites after being pre-purged for a time T0 after being turned on. The cooling water pump, the refrigerant pump and the solution pump are operated for dilution for a certain period of time even after the chilled water outlet thermoswitch is turned off and the burner is extinguished, and then stopped. After the dilution operation is completed, when the cold water outlet thermo switch is turned on and the burner starts pre-purge, the cooling water pump, the refrigerant pump, and the solution pump are simultaneously started. If the cold water outlet thermo switch is turned on and the burner starts pre-purge before the dilution operation is completed, the cooling water pump, the refrigerant pump, and the solution pump are continuously operated.

【００６２】冷水出口サーモスイッチの設定値は、冷水
出口サーモスイッチがオンしてから時間Ｔ1（Ｔ1＞Ｔ
0）経過後、時間Ｔ2の間、高い温度へシフトし、冷水出
口温度ｔ2にてオフ、冷水出口温度ｔ3にてオンとなる。
時間Ｔ2が経過した後、冷水出口サーモスイッチの設定
値は元に戻る。少なくとも冷水出口サーモスイッチがオ
ンしてバーナがプリパージを開始すると冷却水ポンプ、
冷媒ポンプおよび溶液ポンプは運転されるので、その時
点までの吸収式冷温水機の運転状態によって定まる吸収
器の溶液の濃度に応じて、バーナが着火していなくとも
吸収式冷温水機に冷却能力が発生する。The set value of the chilled water outlet thermo switch is determined by the time T1 (T1> T) after the chilled water outlet thermo switch is turned on.
0) After elapse, the temperature shifts to a higher temperature for a time T2, and turns off at the cold water outlet temperature t2 and turns on at the cold water outlet temperature t3.
After the elapse of the time T2, the set value of the cold water outlet thermoswitch returns to the original value. When at least the chilled water outlet thermo switch is turned on and the burner starts pre-purge, the chilled water pump,
Since the refrigerant pump and the solution pump are operated, the absorption capacity of the absorption chiller / heater is determined according to the operating state of the absorption chiller / heater up to that point, even if the burner is not ignited. Occurs.

【００６３】吸収式冷温水機の負荷が大きい時、この冷
却能力では一旦上昇した冷水温度を、再び温度ｔ2 まで
下げるには至らないため、図１３に示すように、バーナ
は冷水出口サーモスイッチの設定値を時間Ｔ2 の間、高
い温度へシフトすることに拘らず、冷水出口温度に応じ
て冷水出口温度ｔ1 と冷水出口温度ｔ2 の間で、着火
（燃焼している状態）と消火（燃焼していない状態）を
繰り返す。When the load of the absorption chiller / heater is large, this cooling capacity does not reduce the once raised chilled water temperature to the temperature t2 again. Therefore, as shown in FIG. 13, the burner is connected to the chilled water outlet thermoswitch. Regardless of the shift of the set value to a higher temperature during the time T2, ignition (combustion state) and fire extinguishing (combustion state) are performed between the chilled water outlet temperature t1 and the chilled water outlet temperature t2 according to the chilled water outlet temperature. Is not performed).

【００６４】吸収式冷温水機の負荷が小さい時、バーナ
がプリパージを開始して、冷却水ポンプ、冷媒ポンプお
よび溶液ポンプが運転され吸収式冷温水機に冷却能力が
発生すると、図１４に示すように、一旦温度 ｔ2以上に
上昇した冷水温度が、経過時間（Ｔ1＋Ｔ2）の間に温度
ｔ2 以下に低下する。時間Ｔ1 が経過すると、時間Ｔ2
の間、冷水出口サーモスイッチの設定値がシフトし、冷
水出口温度ｔ2 にてオフ、冷水出口温度ｔ3 にてオンと
なるので、冷水出口サーモスイッチがオフとなり一旦着
火したバーナはすぐに消火となる。バーナが消火となっ
ても冷却水ポンプ、冷媒ポンプおよび溶液ポンプは一定
時間稀釈運転を行い吸収器の溶液の濃度に応じた冷却能
力が吸収式冷温水機に発生し、冷水を冷却する。When the load of the absorption chiller / heater is small, the burner starts pre-purge and the cooling water pump, the refrigerant pump and the solution pump are operated to generate a cooling capacity in the absorption chiller / heater, as shown in FIG. As described above, the temperature of the chilled water once increased to the temperature t2 or more decreases to the temperature t2 or less during the elapsed time (T1 + T2). When time T1 elapses, time T2
During this time, the set value of the chilled water outlet thermoswitch shifts and turns off at the chilled water outlet temperature t2 and turns on at the chilled water outlet temperature t3, so that the chilled water outlet thermoswitch is turned off and the burner once ignited immediately extinguishes the fire. . Even if the burner is extinguished, the cooling water pump, the refrigerant pump and the solution pump perform a dilution operation for a certain period of time, and a cooling capacity corresponding to the concentration of the solution in the absorber is generated in the absorption chiller / heater to cool the chilled water.

【００６５】冷水出口温度が再び上昇すると、同様の動
作を繰り返す。バーナが着火しない状態で冷却水ポン
プ、冷媒ポンプおよび溶液ポンプを運転していると、や
がて吸収器の溶液の濃度が薄くなり、冷却能力が発生し
なくなり、冷水出口サーモスイッチの設定値をシフトし
ても冷水出口サーモスイッチはオフとならず、バーナは
着火を継続する。When the cold water outlet temperature rises again, the same operation is repeated. If the cooling water pump, refrigerant pump, and solution pump are operating without the burner igniting, the solution concentration in the absorber will eventually decrease, and cooling capacity will not be generated, and the set value of the chilled water outlet thermoswitch will be shifted. However, the cold water outlet thermoswitch does not turn off and the burner continues to ignite.

【００６６】このように、本発明の、バーナ着火動作を
行うときの制御によれば、冷房時に、負荷が少ないと
き、吸収器の溶液の濃度として蓄えられた吸収式冷温水
機の残留冷却能力を活用して、その残留冷却能力を使い
きるまでは殆どバーナを燃焼させることなく冷房運転を
行うことができるので省エネルギーとなる。As described above, according to the control for performing the burner ignition operation of the present invention, the residual cooling capacity of the absorption chiller / heater stored as the concentration of the solution in the absorber when the load is small during cooling. The cooling operation can be performed almost without burning the burner until the residual cooling capacity is used up, thereby saving energy.

【００６７】[0067]

【発明の効果】本発明によれば、吸収式冷温水機におい
て蒸発器と吸収器を並列配置し、この蒸発器と吸収器の
上側に凝縮器と低温再生器を配置し、さらに高温再生器
を蒸発器及び吸収器に並列配置したので、負荷が少いと
きにおこりやすい溶液の循環不良を防止できる。According to the present invention, an evaporator and an absorber are arranged in parallel in an absorption chiller / heater, a condenser and a low-temperature regenerator are arranged above the evaporator and the absorber, and a high-temperature regenerator is further provided. Is arranged in parallel with the evaporator and the absorber, so that it is possible to prevent the poor circulation of the solution which is likely to occur when the load is small.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の吸収式冷温水機の一実施例のシェル断
面図である。FIG. 1 is a cross-sectional view of a shell of an embodiment of an absorption-type water heater / heater of the present invention.

【図２】本発明に係るシステム全体の概略構成図であ
る。FIG. 2 is a schematic configuration diagram of the entire system according to the present invention.

【図３】本発明に係るシステムの一実施例を示す図であ
る。FIG. 3 is a diagram showing one embodiment of a system according to the present invention.

【図４】本発明の吸収式冷温水機の一実施例を示す図で
ある。FIG. 4 is a view showing one embodiment of an absorption type water cooler / heater of the present invention.

【図５】バーナポジションの説明図である。FIG. 5 is an explanatory diagram of a burner position.

【図６】バーナの制御の説明図である（冷房）。FIG. 6 is an explanatory diagram of burner control (cooling).

【図７】バーナの制御の説明図である（暖房）。FIG. 7 is an explanatory diagram of control of a burner (heating).

【図８】バーナの制御の説明図である（冷房）。FIG. 8 is an explanatory diagram of burner control (cooling).

【図９】バーナの制御の説明図である（暖房）。FIG. 9 is an explanatory diagram of burner control (heating).

【図１０】本発明に係るシステムの他の実施例を示す図
である。FIG. 10 is a diagram showing another embodiment of the system according to the present invention.

【図１１】吸収式冷温水機の運転台数を決定するアルゴ
リズムの説明図である。FIG. 11 is an explanatory diagram of an algorithm for determining the number of operating absorption-type water heaters.

【図１２】本発明の吸収式冷温水機の他の実施例を示す
図である。FIG. 12 is a view showing another embodiment of the absorption-type hot / cold water heater of the present invention.

【図１３】冷温水機のバーナ着火動作時の制御の説明図
である（負荷大）。FIG. 13 is an explanatory diagram of control during the burner ignition operation of the water heater / heater (large load).

【図１４】冷温水機のバーナ着火動作時の制御の説明図
である（負荷小）。FIG. 14 is an explanatory diagram of control during a burner ignition operation of the water heater / heater (light load).

【符号の説明】[Explanation of symbols]

１…吸収式冷温水機、２…室内機、２Ａ…ファン、２Ｂ
…熱交換コイル、２Ｃ…電動弁、３…冷温水配管、３Ａ
…主管路、３Ｂ…副管路、３Ｃ…分岐管、３Ｄ…冷温水
集合管、３Ｅ…冷温水集合管、４…冷温水機制御盤、５
…集中制御盤、６…室内機コントローラー、７…通信手
段、７Ａ…通信手段、８…通信手段、９…中央操作盤、
１０…外気温度センサ、１１…温湿度センサ、１２…通
信手段、１３…通信手段、１４…通信手段、１５…台数
制御盤、１６…通信手段、１７…冷温水バイパス弁、２
１…蒸発器、２２…吸収器、２３…凝縮器、２４…低温
再生器、２５…高温再生器、２６…バーナ、２７…冷媒
ポンプ、２８…溶液ポンプ、２９…気泡ポンプリフト主
管、３０…冷媒ブロー弁、３１…冷媒タンク、３２…冷
媒ブロー配管、３３…セパレータ、３４…低温溶液熱
交、３５…高温溶液熱交、３６…Ｕシール管、３７…蒸
発器伝熱管部、３８…吸収器伝熱管部、３９…低温再生
器伝熱管部、４０…凝縮器伝熱管部、４１…吸収器スプ
レーツリー、４２…蒸発器スプレーツリー、４３…冷媒
液もどし管、４４…エゼクター、４５…仕切板、４６…
フロート弁、４７…冷媒ポンプ吐出配管、４８…気泡ポ
ンプ吸込配管、１０１…空気調和機遠方運転操作盤、１
０２…遠方操作盤、１０３…ＡＨＵ運転スイッチ、１０
４…冷温風ダクト、１０５…冷温水主幹配管、１０６…
冷温水枝管、ＡＨＵ…空気調和機、ＦＣ…ファンコイル
ユニット、ＣＴ…冷却塔。1. Absorption chiller / heater, 2: Indoor unit, 2A: fan, 2B
... heat exchange coil, 2C ... electric valve, 3 ... cold and hot water piping, 3A
... Main pipeline, 3B ... Sub pipeline, 3C ... Branch pipe, 3D ... Cool and hot water collecting pipe, 3E ... Cool and hot water collecting pipe, 4 ... Cooling and hot water machine control panel, 5
... Centralized control panel, 6 ... Indoor unit controller, 7 ... Communication means, 7A ... Communication means, 8 ... Communication means, 9 ... Central control panel,
DESCRIPTION OF SYMBOLS 10 ... Outside temperature sensor, 11 ... Temperature / humidity sensor, 12 ... Communication means, 13 ... Communication means, 14 ... Communication means, 15 ... Number control panel, 16 ... Communication means, 17 ... Cold / hot water bypass valve, 2
DESCRIPTION OF SYMBOLS 1 ... Evaporator, 22 ... Absorber, 23 ... Condenser, 24 ... Low temperature regenerator, 25 ... High temperature regenerator, 26 ... Burner, 27 ... Refrigerant pump, 28 ... Solution pump, 29 ... Bubble pump lift main pipe, 30 ... Refrigerant blow valve, 31 refrigerant tank, 32 refrigerant blow pipe, 33 separator, 34 low temperature solution heat exchange, 35 high temperature solution heat exchange, 36 U seal tube, 37 evaporator heat transfer tube, 38 absorption Heat transfer tube section, 39: Low temperature regenerator heat transfer tube section, 40: Condenser heat transfer tube section, 41: Absorber spray tree, 42 ... Evaporator spray tree, 43 ... Refrigerant liquid return pipe, 44 ... Ejector, 45 ... Partition Board, 46 ...
Float valve, 47: refrigerant pump discharge pipe, 48: bubble pump suction pipe, 101: air conditioner remote operation control panel, 1
02: Remote control panel, 103: AHU operation switch, 10
4: cold / hot air duct, 105: cold / hot water main pipe, 106:
Cold and hot water branch pipe, AHU: air conditioner, FC: fan coil unit, CT: cooling tower.

フロントページの続き (72)発明者 相沢 道彦 茨城県土浦市神立町603番地 株式会社日 立製作所土浦工場内 (72)発明者 大内 富久 茨城県土浦市神立町502番地 株式会社日 立製作所機械研究所内Continued on the front page (72) Inventor Michihiko Aizawa 603, Kandamachi, Tsuchiura-shi, Ibaraki Inside the Tsuchiura Plant, Hitachi, Ltd. Inside

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】冷媒で希釈された希溶液を再生器で加熱し
て冷媒蒸気を発生させ、冷房時には冷媒蒸気を冷却手段
により冷却凝縮させたのち蒸発器で蒸発させることによ
り冷温水を冷却し、暖房時には前記蒸発器で冷媒蒸気に
より冷温水を加熱して温水とし、前記蒸発器で冷温水を
冷却または加熱したのちの冷媒を冷媒蒸気発生時に生じ
た濃溶液に吸収器で吸収または混合させて希溶液とした
のち前記再生器へ戻す吸収式冷温水機において、前記再
生器は低温再生器と高温再生器を有し、前記蒸発器と前
記吸収器を並列配置し、この蒸発器と吸収器の上側に前
記凝縮器と前記低温再生器を配置し、さらに前記高温再
生器を前記蒸発器及び前記吸収器に並列配置したことを
特徴とする吸収式冷温水機。1. A dilute solution diluted with a refrigerant is heated by a regenerator to generate refrigerant vapor. During cooling, the refrigerant vapor is cooled and condensed by cooling means and then evaporated by an evaporator to cool the cold and hot water. During heating, the evaporator heats the cold and hot water with the refrigerant vapor in the evaporator to produce hot water, and the refrigerant after cooling or heating the cold and hot water in the evaporator is absorbed or mixed with the concentrated solution generated when the refrigerant vapor is generated by the absorber. In the absorption type chiller / heater which returns to the regenerator after making a dilute solution, the regenerator has a low-temperature regenerator and a high-temperature regenerator, and the evaporator and the absorber are arranged in parallel. An absorption chiller / heater, wherein the condenser and the low-temperature regenerator are arranged above a vessel, and the high-temperature regenerator is arranged in parallel with the evaporator and the absorber. 【請求項２】下部にある前記蒸発器及び前記吸収器と、
上部にある前記凝縮器及び前記低温再生器との間を仕切
る仕切る部材を設け、この仕切り部材を前記凝縮器と前
記低温再生器間に突出させてこれら凝縮器と低温再生器
とを仕切り、この突出部により前記凝縮器と前記低温再
生器間に断熱空間を形成したことを特徴とする請求項1
に記載の吸収式冷温水機。2. The evaporator and the absorber at the bottom,
A partition member for partitioning between the condenser and the low-temperature regenerator at the upper part is provided, and this partition member is projected between the condenser and the low-temperature regenerator to partition these condensers and the low-temperature regenerator. The heat insulating space is formed between the condenser and the low-temperature regenerator by a protrusion.
Absorption type chiller / heater as set forth in [1]. 【請求項３】前記再生器は加熱手段としてバーナを有
し、このバーナは暖房Ｈ1、冷房Ｈ2、低Ｌｏ及び停止Ｏ
ＦＦの４つの加熱量切換が可能であり、暖房時は、この
吸収冷温水機に接続される室内機の利用状況から求めら
れた室内機負荷率に応じて、バーナの加熱量をＨ2、Ｌ
ｏ、ＯＦＦ（停止） の３段階に切り替え、冷房時は室
内機負荷率に応じて、バーナの加熱量をＨ1、Ｌｏ、Ｏ
ＦＦ（停止）の３段階に切り替えられることを特徴とす
る請求項１または請求項2に記載の吸収式冷温水機。3. The regenerator has a burner as a heating means, and the burner has a heating H1, a cooling H2, a low Lo, and a stop O.
Four heating amounts of the FF can be switched, and during heating, the heating amounts of the burners are set to H2 and L in accordance with the indoor unit load factor obtained from the usage state of the indoor units connected to the absorption chiller / heater.
o, OFF (stop). During cooling, the burner heating amount is set to H1, Lo, O according to the indoor unit load factor.
3. The absorption chiller / heater according to claim 1, wherein the absorption chiller / heater is switched to three stages of FF (stop). 【請求項４】前記蒸発器の底部にたまった冷媒液を前記
吸収器へ移送する気泡ポンプを備え、前記凝縮器から前
記蒸発器に冷媒蒸気を導くＵシール管と、冷媒液を冷媒
蒸気とともに移送する気泡ポンプリフト主管とを１本の
配管にて兼用させたことを特徴とする請求項1または請
求項2に記載の吸収式冷温水機。4. A U-sealed pipe for introducing a refrigerant vapor from the condenser to the evaporator, comprising a bubble pump for transferring the refrigerant liquid accumulated at the bottom of the evaporator to the absorber, and a refrigerant liquid together with the refrigerant vapor. 3. The absorption chiller / heater according to claim 1, wherein a single pipe also serves as a main pipe of the bubble pump lift to be transferred. 【請求項５】冷房運転時の冷水出口温度を検出する冷水
温度検出手段と、この冷水温度検出手段が検出した冷水
出口温度に応じて作動するサーモスイッチとを設け、検
出した冷水温度が上昇してこのサーモスイッチがオンと
なってから予め定めた時間経過後に、所定時間だけ前記
サーモスイッチの設定値をそれまでの設定値より高く
し、この所定時間経過後は元の設定値に戻すように前記
サーモスイッチを制御する制御手段を設けたことを特徴
とする請求項1または請求項2に記載の吸収式冷温水機。5. A chilled water temperature detecting means for detecting a chilled water outlet temperature during a cooling operation, and a thermoswitch which operates in accordance with the chilled water outlet temperature detected by the chilled water temperature detecting means, wherein the detected chilled water temperature rises. After a predetermined time elapses after the lever thermoswitch is turned on, the set value of the thermoswitch is set higher than the previous set value for a predetermined time, and after the predetermined time elapses, the original set value is returned. 3. The absorption chiller / heater according to claim 1, further comprising control means for controlling the thermoswitch.
JP05661499A 1992-09-18 1999-03-04 Absorption chiller / heater Expired - Fee Related JP3209212B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05661499A JP3209212B2 (en) 1992-09-18 1999-03-04 Absorption chiller / heater

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4-249967 1992-09-18
JP24996792 1992-09-18
JP05661499A JP3209212B2 (en) 1992-09-18 1999-03-04 Absorption chiller / heater

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP04902293A Division JP3189470B2 (en) 1992-09-18 1993-03-10 Multi-type absorption air conditioning system

Publications (2)

Publication Number Publication Date
JPH11287527A true JPH11287527A (en) 1999-10-19
JP3209212B2 JP3209212B2 (en) 2001-09-17

Family

ID=26397571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05661499A Expired - Fee Related JP3209212B2 (en) 1992-09-18 1999-03-04 Absorption chiller / heater

Country Status (1)

Country Link
JP (1) JP3209212B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007263464A (en) * 2006-03-28 2007-10-11 Sanyo Electric Co Ltd Absorption cold/hot water supply apparatus
KR101343466B1 (en) * 2013-08-12 2014-01-15 윤서영 Absorbent refrigeration using middle warm water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007263464A (en) * 2006-03-28 2007-10-11 Sanyo Electric Co Ltd Absorption cold/hot water supply apparatus
KR101343466B1 (en) * 2013-08-12 2014-01-15 윤서영 Absorbent refrigeration using middle warm water

Also Published As

Publication number Publication date
JP3209212B2 (en) 2001-09-17

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