JPH11201563A - Cooling device - Google Patents
Cooling deviceInfo
- Publication number
- JPH11201563A JPH11201563A JP10007700A JP770098A JPH11201563A JP H11201563 A JPH11201563 A JP H11201563A JP 10007700 A JP10007700 A JP 10007700A JP 770098 A JP770098 A JP 770098A JP H11201563 A JPH11201563 A JP H11201563A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- temperature
- cooling
- evaporator
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、航空機に搭載して
その制御装置の冷却に利用できる冷却装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device which can be mounted on an aircraft and used for cooling a control device thereof.
【０００２】[0002]
【従来の技術】図２は従来の航空機器に搭載されている
冷却装置の構成をブロック的に示す。すなわち、航空機
の機内温調を行なう場合、冷却部として機能するのが熱
負荷部１０８である。この熱負荷部１０８に供給される
冷却液または冷却ガス１１２は、エバポレータ１０５の
熱交換によって冷却され、ポンプ（またはファン）１０
６によって循環する。2. Description of the Related Art FIG. 2 is a block diagram showing the configuration of a conventional cooling device mounted on an aircraft. That is, the heat load unit 108 functions as a cooling unit when controlling the temperature inside the aircraft. The cooling liquid or the cooling gas 112 supplied to the heat load unit 108 is cooled by heat exchange of the evaporator 105, and is cooled by the pump (or fan) 10
6 circulates.
【０００３】一方、コンプレッサ１０１により圧縮され
た高温高圧ガス状冷媒は、図中矢印Ａで示す方向に循環
し、コンデンサ１０２により液化され、レシーバ１０３
に入り、膨張弁１０４により絞られることで低圧の気液
二相とされ、エバポレータ１０５において冷却液または
冷却ガス１１２との熱交換により蒸発して、低温低圧の
ガスとなってコンプレッサ１０１に入る。On the other hand, the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 101 circulates in the direction indicated by the arrow A in the figure, is liquefied by the condenser 102, and
Then, the gas is throttled by the expansion valve 104 to form a low-pressure gas-liquid two-phase. The evaporator 105 evaporates by heat exchange with the cooling liquid or the cooling gas 112, and enters the compressor 101 as a low-temperature low-pressure gas.
【０００４】従来技術では、回転速度が一定のモータで
回転させて、供給する冷却液または冷却ガス１１２の温
度制御は、温度センサ１０７からの信号を、コントロー
ラ１０９に受け、コントローラ１０９からの制御によ
り、膨張弁１０４を開度調整することによって、実施し
ている。冷却液または冷却ガス１１２はポンプ（または
ファン）１０６によって循環し熱負荷部１０８に送ら
れ、航空機内の冷却に用いられる。In the prior art, the temperature of the cooling liquid or cooling gas 112 supplied by being rotated by a motor having a constant rotation speed is controlled by a controller 109 receiving a signal from a temperature sensor 107. The adjustment is performed by adjusting the opening of the expansion valve 104. The cooling liquid or gas 112 is circulated by a pump (or fan) 106 and sent to the heat load unit 108 for cooling the interior of the aircraft.
【０００５】[0005]
【発明が解決しようとする課題】従来の冷却装置は以上
のように構成されているが、冷却を要する環境すなわち
熱負荷部が、非常に高い温度から低い温度にわたる広範
囲の制御を必要としているため、最大温度にも対応でき
るように、常に最大の回転速度でコンプレッサを運転し
ている。供給する冷却液または冷却ガスの温度制御を、
膨張弁の開度調整により実施しているが、低い温度のと
きにも、コンプレッサの回転速度が必要以上に大きい状
態で運転されており、コンプレッサへの余分な入力を消
費しているという問題があった。The conventional cooling device is constructed as described above. However, since the environment requiring cooling, that is, the heat load, requires a wide range of control from a very high temperature to a low temperature. In order to handle the maximum temperature, the compressor is always operated at the maximum rotation speed. Control the temperature of the supplied cooling liquid or cooling gas,
This is done by adjusting the opening of the expansion valve.However, even at low temperatures, the compressor operates at a speed higher than necessary and consumes extra input to the compressor. there were.
【０００６】本発明は、このような事情に鑑みてなされ
たものであって、必要にして十分な最低限の可変回転速
度で、電源入力を低減してコンプレッサを駆動し、温度
制御ができる冷却装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has a required and sufficient minimum variable rotational speed, a power supply input is reduced, a compressor is driven, and a cooling system capable of controlling temperature is provided. It is intended to provide a device.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の冷却装置は、ラジアル（遠心式）コンプレ
ッサとコンデンサと膨張弁とエバポレータとから構成さ
れ、エバポレータから供給する冷却液または冷却ガスの
温度制御をするようになっている冷却装置において、コ
ンプレッサの回転速度を制御するインバータを設け、イ
ンバータの周波数制御によって、コンプレッサとエバポ
レータを制御するようにしたことを特徴とする。In order to achieve the above object, a cooling apparatus according to the present invention comprises a radial (centrifugal) compressor, a condenser, an expansion valve, and an evaporator, and supplies a cooling liquid or cooling liquid supplied from the evaporator. In a cooling device adapted to control the temperature of gas, an inverter for controlling the rotation speed of the compressor is provided, and the compressor and the evaporator are controlled by controlling the frequency of the inverter.
【０００８】本発明の冷却装置は、上記のように構成さ
れており、インバータの周波数制御によって、コンプレ
ッサの回転速度を制御し、エバポレータの冷却液または
冷却ガスの温度制御をする。この方式により電源入力を
低減する。The cooling device of the present invention is configured as described above, and controls the rotation speed of the compressor by controlling the frequency of the inverter to control the temperature of the cooling liquid or cooling gas of the evaporator. This scheme reduces power input.
【０００９】[0009]
【発明の実施の形態】本発明の冷却装置の実施例を図１
に基づいて説明する。FIG. 1 shows an embodiment of a cooling apparatus according to the present invention.
It will be described based on.
【００１０】図１に示す航空機用冷却装置において、冷
媒１１はインバータ１０でコントロールされるラジアル
コンプレッサ１で圧縮され、コンデンサ２に入り凝縮さ
れ、レシーバ３にためられる。さらに膨張弁４で気液２
相にされ、エバポレータ５で蒸気化され低温度になる。In the aircraft cooling system shown in FIG. 1, a refrigerant 11 is compressed by a radial compressor 1 controlled by an inverter 10, condensed in a condenser 2, and accumulated in a receiver 3. Further, the gas-liquid 2
It is phased and vaporized by the evaporator 5 to a low temperature.
【００１１】一方、冷却液または冷却ガス１２は、エバ
ポレータ５で熱交換されて低温度になり、ポンプ（また
はファン）６によって送り出されて熱負荷部８に送られ
る。その循環系の通路に温度センサ７を設置している。On the other hand, the cooling liquid or cooling gas 12 is subjected to heat exchange by the evaporator 5 to have a low temperature, and is sent out by a pump (or fan) 6 and sent to the heat load section 8. The temperature sensor 7 is installed in the passage of the circulation system.
【００１２】上記冷凍サイクルを制御するために、コン
ピュータ制御によるコントローラ９と周波数変換をする
インバータ１０が構成されている。In order to control the refrigeration cycle, a controller 9 controlled by a computer and an inverter 10 for frequency conversion are configured.
【００１３】この冷却装置において、ラジアルコンプレ
ッサ１の交流モータの回転速度を周波数によって可変に
するためのインバータ１０が備えられており、この点に
本発明の特徴がある。This cooling device is provided with an inverter 10 for varying the rotation speed of the AC motor of the radial compressor 1 depending on the frequency, which is a feature of the present invention.
【００１４】インバータ１０は直流入力を交流出力に変
換できるもので、コントローラ９とラジアルコンプレッ
サ１に接続されている。コントローラ９からの入力制御
信号を受けて、その信号によりインバータ１０で交流周
波数に変化させて、ラジアルコンプレッサ１のモータに
可変周波数の交流電圧を供給する。交流モータはそのモ
ータの励磁極数を変化させるか、あるいは印加電圧の周
波数を変化させると、回転速度が変化する。この場合は
印加電圧の周波数を変化させることにより、回転速度の
制御を行なっている。The inverter 10 can convert a DC input into an AC output, and is connected to the controller 9 and the radial compressor 1. Upon receiving an input control signal from the controller 9, the signal is changed to an AC frequency by the inverter 10 according to the signal, and an AC voltage having a variable frequency is supplied to the motor of the radial compressor 1. The rotation speed of the AC motor changes when the number of excitation poles of the motor is changed or the frequency of the applied voltage is changed. In this case, the rotation speed is controlled by changing the frequency of the applied voltage.
【００１５】温度センサ７はコントローラ９に接続され
ており、供給冷却液または冷却ガス１２の温度を検知し
て、温度センサ７の出力はコントローラ９に入る。この
入力によってコントローラ９は、温度の上げ下げの制御
信号を前記のインバータ１０に送る。The temperature sensor 7 is connected to the controller 9 and detects the temperature of the supplied cooling liquid or cooling gas 12, and the output of the temperature sensor 7 enters the controller 9. By this input, the controller 9 sends a control signal for raising and lowering the temperature to the inverter 10.
【００１６】膨張弁４はコントローラ９に接続されてお
り、従来の機能である開度調整のコントロールは行なわ
ず、この冷凍サイクルにおいて、異常な状態になったと
きだけ、弁を開閉するだけで、供給システムの温度コン
トロールには使用しない。The expansion valve 4 is connected to a controller 9 and does not control the opening adjustment which is a conventional function. In this refrigeration cycle, the valve is opened and closed only when an abnormal state is reached. Not used for temperature control of the supply system.
【００１７】この冷却装置で、冷却液または冷却ガス１
２の温度を下げる場合は、ラジアルコンプレッサ１の回
転速度を増大させる。ラジアルコンプレッサ１の場合、
回転速度を増大させると、圧縮比が増大する。コンプレ
ッサ出口の冷媒圧力はコンデンサ２での凝縮圧力により
ほぼ一定であるので、回転速度が増大すると、コンプレ
ッサ入口圧力、エバポレータ蒸発圧力が下がり、その結
果エバポレータ５で冷媒１１の蒸発温度が下がる。その
時、冷媒蒸発温度と供給冷却液または冷却ガスの温度差
が大きくなるため、エバポレータ５での熱交換量が増大
し冷却量が増加するため、供給冷却液または冷却ガス１
２の温度を下げることができる。In this cooling device, the cooling liquid or cooling gas 1
When lowering the temperature of 2, the rotational speed of the radial compressor 1 is increased. For radial compressor 1,
Increasing the rotation speed increases the compression ratio. Since the refrigerant pressure at the compressor outlet is substantially constant due to the condensing pressure in the condenser 2, when the rotation speed increases, the compressor inlet pressure and the evaporator evaporation pressure decrease, and as a result, the evaporation temperature of the refrigerant 11 in the evaporator 5 decreases. At this time, since the difference between the refrigerant evaporation temperature and the temperature of the supplied cooling liquid or cooling gas increases, the amount of heat exchange in the evaporator 5 increases, and the cooling amount increases.
2, the temperature can be lowered.
【００１８】以上のとおり、本発明によればラジアルコ
ンプレッサ１の回転速度の調整により、供給冷却液また
は冷却ガス１２の温度をコントロールすることができ
る。As described above, according to the present invention, the temperature of the supply cooling liquid or the cooling gas 12 can be controlled by adjusting the rotation speed of the radial compressor 1.
【００１９】[0019]
【発明の効果】本発明の冷却装置は上記のように構成さ
れており、従来の膨張弁の開度調整による温度制御を、
コンプレッサの回転速度を可変にすることによる温度制
御に置き換えることによって、コンプレッサの消費電力
を節約することが可能となり、所定の性能を奏すること
ができる。The cooling device of the present invention is configured as described above, and performs the conventional temperature control by adjusting the opening degree of the expansion valve.
By replacing with temperature control by making the rotation speed of the compressor variable, power consumption of the compressor can be saved, and predetermined performance can be achieved.
【図１】 本発明の冷却装置の一実施例について構成を
ブロック的に示す図である。FIG. 1 is a block diagram showing a configuration of an embodiment of a cooling device of the present invention.
【図２】 従来の冷却装置の一実施例について構成をブ
ロック的に示す図である。FIG. 2 is a block diagram showing a configuration of an embodiment of a conventional cooling device.
１ ラジアルコンプレッサ ２ コンデンサ ３ レシーバ ４ 膨張弁 ５ エバポレータ ６ ポンプ（またはファン） ７ 温度センサ ８ 熱負荷部 ９ コントローラ １０ インバータ １１ 冷媒 １２ 冷却液または冷却ガス DESCRIPTION OF SYMBOLS 1 Radial compressor 2 Condenser 3 Receiver 4 Expansion valve 5 Evaporator 6 Pump (or fan) 7 Temperature sensor 8 Heat load part 9 Controller 10 Inverter 11 Refrigerant 12 Coolant or cooling gas
Claims (1)
弁とエバポレータとから構成され、エバポレータから供
給する冷却液または冷却ガスの温度制御をするようにな
っている冷却装置において、コンプレッサの回転速度を
制御するインバータを設け、インバータの周波数制御に
よって、コンプレッサとエバポレータを制御するように
したことを特徴とする冷却装置。An inverter for controlling a rotation speed of a compressor in a cooling device comprising a radial compressor, a condenser, an expansion valve, and an evaporator for controlling the temperature of a cooling liquid or a cooling gas supplied from the evaporator. And a compressor and an evaporator are controlled by frequency control of an inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10007700A JPH11201563A (en) | 1998-01-19 | 1998-01-19 | Cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10007700A JPH11201563A (en) | 1998-01-19 | 1998-01-19 | Cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11201563A true JPH11201563A (en) | 1999-07-30 |
Family
ID=11673049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10007700A Pending JPH11201563A (en) | 1998-01-19 | 1998-01-19 | Cooling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11201563A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100585991B1 (en) | 2005-02-23 | 2006-06-02 | 주식회사 창조이십일 | Air conditioner and method for controlling thereof |
| WO2007052898A1 (en) * | 2005-09-15 | 2007-05-10 | Chang Jo 21 Co., Ltd. | Air conditioning system for communication equipment and controlling method thereof |
| KR100773959B1 (en) | 2005-09-15 | 2007-11-07 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
| KR100773962B1 (en) | 2005-09-15 | 2007-11-08 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
| KR100806320B1 (en) | 2005-09-15 | 2008-03-06 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
| CN100378420C (en) * | 2005-09-13 | 2008-04-02 | 海信集团有限公司 | Variable frequency refrigerator and control method thereof |
| KR100823655B1 (en) | 2006-09-01 | 2008-04-18 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
-
1998
- 1998-01-19 JP JP10007700A patent/JPH11201563A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100585991B1 (en) | 2005-02-23 | 2006-06-02 | 주식회사 창조이십일 | Air conditioner and method for controlling thereof |
| CN100378420C (en) * | 2005-09-13 | 2008-04-02 | 海信集团有限公司 | Variable frequency refrigerator and control method thereof |
| WO2007052898A1 (en) * | 2005-09-15 | 2007-05-10 | Chang Jo 21 Co., Ltd. | Air conditioning system for communication equipment and controlling method thereof |
| KR100773959B1 (en) | 2005-09-15 | 2007-11-07 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
| KR100773962B1 (en) | 2005-09-15 | 2007-11-08 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
| KR100806320B1 (en) | 2005-09-15 | 2008-03-06 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
| US7984621B2 (en) | 2005-09-15 | 2011-07-26 | Chang Jo 21 Co., Ltd. | Air conditioning system for communication equipment and controlling method thereof |
| KR100823655B1 (en) | 2006-09-01 | 2008-04-18 | 주식회사 창조이십일 | Air conditioning system for communication equipment and controlling method thereof |
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