JPH0214625B2 - - Google Patents
Info
- Publication number
- JPH0214625B2 JPH0214625B2 JP59095403A JP9540384A JPH0214625B2 JP H0214625 B2 JPH0214625 B2 JP H0214625B2 JP 59095403 A JP59095403 A JP 59095403A JP 9540384 A JP9540384 A JP 9540384A JP H0214625 B2 JPH0214625 B2 JP H0214625B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- engine
- heat exchanger
- cold
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 238000001816 cooling Methods 0.000 claims description 30
- 239000000498 cooling water Substances 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 238000004378 air conditioning Methods 0.000 claims description 10
- 239000003507 refrigerant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、強制循環される空調用熱媒流体エ
ンジンヒートポンプと吸収式冷温水ユニツトで冷
却又は加温するよう構成した冷暖房装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an air conditioning system configured to perform cooling or heating using a forcedly circulated air-conditioning heat medium fluid engine heat pump and an absorption chilled/hot water unit.
従来、上記冷暖房装置においては、エンジンヒ
ートポンプにおけるエンジンからの冷却水をエン
ジン排気利用の熱交換器に導き、ここで高温とな
つたエンジン冷却水を吸収式冷温水ユニツトの吸
熱用熱交換部に供給することで、エンジン排熱の
一部を吸収式冷温水ユニツトの熱源の一部に利用
して、該ユニツトを効率よく、かつ経済的に運転
することが考えられている。
Conventionally, in the above-mentioned air conditioning system, cooling water from the engine in the engine heat pump is guided to a heat exchanger that utilizes engine exhaust air, and the engine cooling water that becomes high temperature is then supplied to the heat exchange section for absorbing heat in the absorption type cold/hot water unit. By doing so, it is considered that a part of the engine exhaust heat can be used as part of the heat source of the absorption type cold/hot water unit to operate the unit efficiently and economically.
上記従来技術においては、冷房運転モードにお
いては、エンジン排熱を吸収式冷温水ユニツトで
効率よく回収して該ユニツトの冷却能力を高める
のに役立てることができるのであるが、暖房運転
モードにおいては冷温水ユニツトでのエンジン排
熱の回収効率が低い（約65％程度）ものであつ
た。
In the above-mentioned conventional technology, in the cooling operation mode, engine exhaust heat can be efficiently recovered by the absorption type cold/hot water unit and used to increase the cooling capacity of the unit, but in the heating operation mode, the cold/hot water The recovery efficiency of engine exhaust heat in the water unit was low (approximately 65%).
この発明は、エンジン冷却水循環流路及び熱媒
流体の循環流路に改良を加えることで、冷房運転
モード、及び暖房運転モード夫々においてエンジ
ン排熱を効率よく回収できるようにすることを目
的としたものである。 The purpose of this invention is to make it possible to efficiently recover engine exhaust heat in both the cooling operation mode and the heating operation mode by improving the engine cooling water circulation flow path and the heat transfer fluid circulation flow path. It is something.
上記目的を達成するための本発明の特徴構成
は、前記エンジンヒートポンプにおけるエンジン
からの冷却水をエンジン排気利用の熱交換器、前
記冷温水ユニツトの吸熱用熱交換部、及び冷却系
の熱交換器を経てエンジンに房すエンジン冷却水
循環流路を形成し、冷房運転モードにおいては前
記エンジン排気利用の熱交換器を出た高温エンジ
ン冷却水を前記冷温水ユニツトの吸熱用熱交換部
を供給し、暖房運転時には前記エンジン排気利用
の熱交換器を出た高温のエンジン冷却水を、前記
冷温水ユニツトの吸熱用熱交換部を通さず冷却系
の熱交換器に直接供給するようエンジン冷却水循
環流路を切換える手段を備えるとともに、暖房運
転モードにおいて前記エンジンヒートポンプ及び
前記冷温水ユニツトを経て加温された熱媒流体を
前記冷却系の熱交換器に導いてエンジン冷却水と
熱交換させるように、熱媒流体循環流路を切換え
る手段を備えてある点にある。
The characteristic configuration of the present invention for achieving the above object is that the engine heat pump includes a heat exchanger that utilizes engine exhaust for cooling water from the engine, a heat exchange section for absorbing heat in the cold/hot water unit, and a heat exchanger in the cooling system. forming an engine cooling water circulation flow path that flows to the engine through the air conditioner, and in the cooling operation mode, supplies the high temperature engine cooling water exiting the engine exhaust heat exchanger to the endothermic heat exchange section of the cold/hot water unit; During heating operation, the engine cooling water circulation flow path is configured to directly supply high-temperature engine cooling water exiting the heat exchanger using the engine exhaust gas to the heat exchanger of the cooling system without passing through the heat-absorbing heat exchange section of the cold/hot water unit. and a means for switching the heat medium fluid heated through the engine heat pump and the cold/hot water unit to the heat exchanger of the cooling system to exchange heat with the engine cooling water in the heating operation mode. It is provided with means for switching the medium fluid circulation flow path.
上記構成によると、冷房運転モードではエンジ
ン排気利用の熱交換器で加熱された高温のエンジ
ン冷却水は吸収式冷温水ユニツトの熱源の一部に
有効に利用される。又、暖房運転モードでは、エ
ンジン排気利用の熱交換器で加温された高温のエ
ンジン冷却水は冷却系の熱交換器において空調用
熱媒流体と直接的に熱交換され、エンジン排熱が
熱媒流体に効率よく回収される。
According to the above configuration, in the cooling operation mode, the high temperature engine cooling water heated by the heat exchanger using the engine exhaust gas is effectively used as a part of the heat source of the absorption type cold/hot water unit. In addition, in the heating operation mode, the high-temperature engine cooling water heated by the engine exhaust heat exchanger is directly heat-exchanged with the air conditioning heat medium fluid in the cooling system heat exchanger, and the engine exhaust heat is converted into heat. Efficiently recovered in medium fluid.
エンジン冷却水循環流路及び空調用熱媒流体循
環流路の改良によつて、冷暖房運転モードの夫々
においてエンジン排熱を効率よく回収でき、経済
運転が可能となつた。
By improving the engine cooling water circulation path and the air conditioning heat medium fluid circulation path, engine exhaust heat can be efficiently recovered in each of the cooling and heating operation modes, making economical operation possible.
以下本発明の実施例を図面に基づいて説明す
る。
Embodiments of the present invention will be described below based on the drawings.
第１図は冷暖房装置全体の概略構成を示し、基
本的には、エンジンヒートポンプ１、吸収式冷温
水ユニツト２、室内熱交換器、熱媒流体としての
温水もしくは冷水の強制循環用ポンプ４からな
る。 Figure 1 shows a schematic configuration of the entire air conditioning system, which basically consists of an engine heat pump 1, an absorption cold/hot water unit 2, an indoor heat exchanger, and a pump 4 for forced circulation of hot or cold water as a heat medium fluid. .
前記エンジンヒートポンプ１〔以下ヒートポン
プと略称する〕は、都市ガスを燃料とする水冷式
のガスエンジン５、これによつて駆動される冷媒
用コンプレツサ６、冷媒サイクル中の膨張器７、
室外の空気熱交換器８、主熱交換器９、及び排気
ガス利用の熱交換器１０を備えている。 The engine heat pump 1 (hereinafter referred to as heat pump) includes a water-cooled gas engine 5 that uses city gas as fuel, a refrigerant compressor 6 driven by the engine, an expander 7 in the refrigerant cycle,
It is equipped with an outdoor air heat exchanger 8, a main heat exchanger 9, and a heat exchanger 10 that utilizes exhaust gas.
又、前記冷温水ユニツト２としては都市ガスを
燃料とするガス直焚型のものが利用され、かつ、
これには水冷用の熱交換器１１と冷却搭１２が付
属している。 Further, as the cold/hot water unit 2, a gas direct-fired type that uses city gas as fuel is used, and
A heat exchanger 11 for water cooling and a cooling tower 12 are attached to this.
上記各機器を接続する流体流路には開閉弁群
が組込まれており、これの切換えによつて以下に
示す運転モードが得られる。 A group of on-off valves is incorporated in the fluid flow path connecting each of the above-mentioned devices, and the following operation modes can be obtained by switching these valves.
() 冷房運転モード（第２図参照）
冷房用の熱媒流体としての冷水は図中の太実
線流路Ａで示すように、冷温水ユニツト２の吸
熱用熱交換部２ａ、ヒートポンプ１の主熱交換
器９、室内熱交換器３の順にポンプ４で強制循
環され、熱交換部２ａ及び主熱交換器９で所定
温度まで順次冷却された冷水によつて室内冷房
が行われる。() Cooling operation mode (see Figure 2) Chilled water as a heat medium fluid for cooling is passed through the heat-absorbing heat exchange part 2a of the cold/hot water unit 2 and the main body of the heat pump 1, as shown by the thick solid line flow path A in the figure. The room is cooled by cold water that is forcedly circulated in the order of the heat exchanger 9 and the indoor heat exchanger 3 by the pump 4, and sequentially cooled to a predetermined temperature in the heat exchange section 2a and the main heat exchanger 9.
又、ヒートポンプ１の冷媒は、図中の太実線
流路Ｂで示すように、コンプレツサ６、凝縮器
としての空気熱交換器８、膨張器７、蒸発器と
しての主熱交換器９の順に循環され、空気熱交
換器８での外気への放熱、主熱交換器９での冷
房用循環水からの吸熱が行われる。 The refrigerant of the heat pump 1 is circulated in the order of the compressor 6, the air heat exchanger 8 as a condenser, the expander 7, and the main heat exchanger 9 as an evaporator, as shown by the thick solid line flow path B in the figure. The air heat exchanger 8 radiates heat to the outside air, and the main heat exchanger 9 absorbs heat from the cooling circulating water.
又、エンジン５の冷却水は、図中の太実線流
路Ｃで示すように、排気ガス熱交換器１０、冷
温水ユニツト２の吸熱用熱交換部２ｂ、冷却系
の熱交換器１１の順にポンプ１３で強制循環さ
れ、エンジン熱を吸収したのち排ガス熱交換器
１０で更に吸熱した高温水を用いて冷温水ユニ
ツト２を補助的に加熱するとともに、熱交換器
１１において放熱したのち低温水が戻されてエ
ンジン冷却に用いられる。 In addition, as shown by the thick solid line flow path C in the figure, the cooling water for the engine 5 flows in the following order: the exhaust gas heat exchanger 10, the endothermic heat exchange section 2b of the cold/hot water unit 2, and the heat exchanger 11 of the cooling system. The hot and cold water unit 2 is heated auxiliary using the high temperature water which is forcedly circulated by the pump 13 and absorbs the engine heat, and then further heat is absorbed by the exhaust gas heat exchanger 10, and after the heat is radiated in the heat exchanger 11, the low temperature water is It is returned and used for engine cooling.
又、冷温水ユニツト２の冷却水は、図中の太
実線流路Ｄで示すようにユニツト２の放熱用熱
交換部２ｃ、前記熱交換器１１及び冷却搭１２
の順にポンプ１４で強制循環され、ユニツト２
での吸熱及び熱交換器１１での吸熱によつて昇
温した冷却水を冷却搭１２で放熱冷却するよう
になつている。 In addition, the cooling water of the cold/hot water unit 2 flows through the heat exchange section 2c for heat radiation of the unit 2, the heat exchanger 11, and the cooling tower 12, as shown by the thick solid line flow path D in the figure.
The unit 2 is forcedly circulated by the pump 14 in this order.
The cooling water whose temperature has risen due to heat absorption in the heat exchanger 1 and heat absorption in the heat exchanger 11 is cooled by heat radiation in the cooling tower 12.
尚、図中の白抜き矢印の方向が各熱交換部位
での熱の移動方向を示している。 Note that the direction of the white arrow in the figure indicates the direction of heat movement at each heat exchange site.
上記冷房運転モードにおいて、要求される空
調負荷が低い間はヒートポンプのみが運転され
て、コンプレツサ６の作動気筒数の増減及びエ
ンジン回転数の制御によつてヒートポンプ１の
能力を負荷に応じて増減制御する。又、ヒート
ポンプ１の能力を越える高負荷域では冷温水ユ
ニツト２が起動されて負荷に対応させることに
なる。この場合、ヒートポンプ１のみの運転中
にもエンジン冷却水をユニツト２の吸熱用熱交
換部２ｂに供給することでユニツト内冷媒の予
熱が行われ、ユニツト２が起動されたときの立
上り時間が短縮される。 In the cooling operation mode, only the heat pump is operated while the required air conditioning load is low, and the capacity of the heat pump 1 is controlled to increase or decrease according to the load by increasing or decreasing the number of operating cylinders of the compressor 6 and controlling the engine speed. do. Further, in a high load range exceeding the capacity of the heat pump 1, the cold/hot water unit 2 is activated to cope with the load. In this case, by supplying engine cooling water to the endothermic heat exchange section 2b of unit 2 even while only heat pump 1 is in operation, the refrigerant in the unit is preheated, reducing the start-up time when unit 2 is started. be done.
() 暖房運転モード（第３図参照）
暖房用の熱媒流体としての温水は図中太実線
流路A′で示すように、ヒートポンプ１の主熱
交換器９、冷温水ユニツト２の放熱用熱交換部
２ｃ、熱交換器１１、室内熱交換器３の順にポ
ンプ４で強制循環され、主熱交換器９、熱交換
部２ｃ及び熱交換器１１で所定温度まで順次加
熱された温水によつて室内暖房が行われる。() Heating operation mode (see Figure 3) Hot water as a heat medium fluid for heating is used for heat radiation in the main heat exchanger 9 of the heat pump 1 and the cold/hot water unit 2, as shown by the thick solid line flow path A' in the figure. Hot water is forcibly circulated through the heat exchanger 2c, heat exchanger 11, and indoor heat exchanger 3 in this order by a pump 4, and heated to a predetermined temperature in the main heat exchanger 9, heat exchanger 2c, and heat exchanger 11 in order. The room will be heated.
又、ヒートポンプ１の冷媒は、図中の太実線
流路B′で示すように、凝縮器としての主熱交
換器９、膨張器７、蒸発器としての空気熱交換
器８の順に循環され、主熱交換器９での暖房用
循環水への放熱、空気熱交換器８での外気から
の吸熱が行われる。 In addition, the refrigerant of the heat pump 1 is circulated in the order of the main heat exchanger 9 as a condenser, the expander 7, and the air heat exchanger 8 as an evaporator, as shown by the thick solid line flow path B' in the figure. The main heat exchanger 9 radiates heat to the circulating water for heating, and the air heat exchanger 8 absorbs heat from the outside air.
又、エンジン５の冷却水は、冷温水ユニツト
２の吸熱用熱交換部ン２ｂを通らない流路C′で
循環され、エンジン５及び排気ガス熱交換器１
０ｂで吸収した熱を熱交換器１１で放出して暖
房用温水を加温する。この場合、冷却水循環用
ポンプ１４は停止する。 In addition, the cooling water for the engine 5 is circulated through a flow path C' that does not pass through the endothermic heat exchange section 2b of the cold/hot water unit 2, and is circulated through the flow path C' that does not pass through the heat exchanger section 2b for cooling/hot water unit 2.
The heat absorbed by 0b is released by the heat exchanger 11 to warm the heating water. In this case, the cooling water circulation pump 14 is stopped.
エンジンヒートポンプ１、及び吸収式冷温水ユ
ニツト２の燃料としてはガス以外いかなるもので
あつてもよい。流体流路の切換え手段としては実
施例に示すように開閉弁を用いる他、三方弁、
四方弁、等の流路切換弁を適宜組合わせてもよ
く、又、これら弁は手動式あるいは電磁式、等を
任意に選択利用できる。
The fuel for the engine heat pump 1 and the absorption type cold/hot water unit 2 may be any fuel other than gas. As the means for switching the fluid flow path, in addition to using an on-off valve as shown in the embodiment, a three-way valve,
Flow path switching valves such as four-way valves may be combined as appropriate, and these valves may be of manual type or electromagnetic type, or the like, and can be arbitrarily selected and utilized.
図面は本発明に係るエンジンヒートポンプ利用
の冷暖房装置の実施例を示し、第１図は全体構成
図、第２図は冷房運転モードのフロー線図、第３
図は暖房運転モードのフロー線図である。
１……エンジンヒートポンプ、２……吸収式冷
温水ユニツト、２ｂ……ユニツトの吸熱用熱交換
部、５……エンジン、１０……エンジン排気利用
の熱交換器、１１……冷却系の熱交換器。
The drawings show an embodiment of the air conditioning system using an engine heat pump according to the present invention, in which Fig. 1 is an overall configuration diagram, Fig. 2 is a flow diagram of the cooling operation mode, and Fig. 3 is a flow diagram of the cooling operation mode.
The figure is a flow diagram of the heating operation mode. DESCRIPTION OF SYMBOLS 1...Engine heat pump, 2...Absorption cold/hot water unit, 2b...Unit heat absorption heat exchange section, 5...Engine, 10...Heat exchanger using engine exhaust gas, 11...Cooling system heat exchange vessel.
Claims (1)
ートポンプと吸収式冷温水ユニツト２で冷却又は
加温するよう構成した冷暖房装置であつて、前記
エンジンヒートポンプ１におけるエンジン５から
の冷却水をエンジン排気利用の熱交換器１０、前
記冷温水ユニツト２の吸熱用熱交換部２ｂ、及び
冷却系の熱交換器１１を経てエンジン５に戻すエ
ンジン冷却水循環流路を形成し、冷房運転モード
においては前記エンジン排気利用の熱交換器１０
を出た高温のエンジン冷却水を前記冷温水ユニツ
ト２の吸熱用熱交換部２ｂに供給し、暖房運転時
には前記エンジン排気利用の熱交換器１０を出た
高温のエンジン冷却水を、前記冷温水ユニツト２
の吸熱用熱交換部２ｂを通さず冷却系の熱交換器
１１に直接供給するようエンジン冷却水循環流路
を切換える手段を備えるとともに、暖房運転モー
ドにおいて前記エンジンヒートポンプ１及び前記
冷温水ユニツト２を経て加温された熱媒流体を前
記冷却系の熱交換器１１に導いてエンジン冷却水
と熱交換させるように、熱媒流体循環流路を切換
える手段を備えてある冷暖房装置。1 A heating and cooling system configured to cool or heat forcedly circulated air conditioning heat medium fluid using an engine heat pump and an absorption cold/hot water unit 2, in which the cooling water from the engine 5 in the engine heat pump 1 is used to utilize the engine exhaust. An engine cooling water circulation path is formed which returns to the engine 5 via the heat exchanger 10 of the cold/hot water unit 2, the heat exchange part 2b for heat absorption of the cold/hot water unit 2, and the heat exchanger 11 of the cooling system, and in the cooling operation mode, the engine exhaust Utilization heat exchanger 10
The high-temperature engine cooling water exiting from the engine exhaust heat exchanger 10 is supplied to the endothermic heat exchange section 2b of the cold/hot water unit 2, and during heating operation, the high-temperature engine cooling water exiting from the engine exhaust heat exchanger 10 is supplied to the cold/hot water unit 2. unit 2
It is provided with a means for switching the engine cooling water circulation flow path so as to supply the engine cooling water directly to the heat exchanger 11 of the cooling system without passing through the endothermic heat exchange part 2b, and in the heating operation mode, through the engine heat pump 1 and the cold/hot water unit 2. An air-conditioning/heating device comprising means for switching a heat medium fluid circulation flow path so that the heated heat medium fluid is guided to a heat exchanger 11 of the cooling system to exchange heat with engine cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59095403A JPS60238657A (en) | 1984-05-11 | 1984-05-11 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59095403A JPS60238657A (en) | 1984-05-11 | 1984-05-11 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60238657A JPS60238657A (en) | 1985-11-27 |
| JPH0214625B2 true JPH0214625B2 (en) | 1990-04-09 |
Family
ID=14136699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59095403A Granted JPS60238657A (en) | 1984-05-11 | 1984-05-11 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60238657A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0678860B2 (en) * | 1986-07-07 | 1994-10-05 | 日立造船株式会社 | Absorption heat pump type heat storage device |
| JP2808488B2 (en) * | 1990-11-27 | 1998-10-08 | 三菱重工業株式会社 | Adsorption cooling device |
| JP4100462B2 (en) * | 1997-09-30 | 2008-06-11 | 株式会社ぱど | Heat utilization system |
-
1984
- 1984-05-11 JP JP59095403A patent/JPS60238657A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60238657A (en) | 1985-11-27 |
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