JPS63238379A - Cooling device - Google Patents
Cooling deviceInfo
- Publication number
- JPS63238379A JPS63238379A JP6959587A JP6959587A JPS63238379A JP S63238379 A JPS63238379 A JP S63238379A JP 6959587 A JP6959587 A JP 6959587A JP 6959587 A JP6959587 A JP 6959587A JP S63238379 A JPS63238379 A JP S63238379A
- Authority
- JP
- Japan
- Prior art keywords
- cooling medium
- coolant
- medium
- heat exchanger
- cooled
- 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
Links
- 238000001816 cooling Methods 0.000 title claims description 12
- 239000002826 coolant Substances 0.000 claims description 89
- 239000007788 liquid Substances 0.000 description 17
- 238000001514 detection method Methods 0.000 description 12
- 230000007423 decrease Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、熱交換器へ必要以上の冷却媒体を流さないよ
うにして冷却媒体ポンプの駆動エネルギーを節約し得る
ようにした冷却装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cooling device that is capable of saving driving energy of a cooling medium pump by not allowing more cooling medium than necessary to flow into a heat exchanger. It is.
［従来の技術］
機関室の従来の冷却システムの一例は第５図に示され、
冷却媒体ポンプａから吐出された海水等の冷却媒体は、
冷却媒体配管すを通って熱交換器Ｃへ送られ、一方清水
や油等の被冷却媒体は被冷却媒体配管ｄを通って熱交換
器Ｃへ送られ、前記冷却媒体と熱交換し冷却され、冷却
された被冷却媒体は主機へ循環され、冷却媒体は外部へ
排出される。[Prior Art] An example of a conventional engine room cooling system is shown in FIG.
The cooling medium such as seawater discharged from the cooling medium pump a is
The cooling medium is sent to the heat exchanger C through the cooling medium piping, while a medium to be cooled such as fresh water or oil is sent to the heat exchanger C through the cooling medium piping d, where it is cooled by exchanging heat with the cooling medium. The cooled medium to be cooled is circulated to the main engine, and the coolant is discharged to the outside.
上述の冷却システムでは、冷却媒体の温度変化、被冷却
媒体の負荷変動に関係なく冷却媒体ポンプａからは常に
一定量の冷却媒体が熱交換器Ｃへ供給されており、熱交
換器Ｃ出側の被冷却媒体配管ｄに設けた温度検出器ｅに
より被冷却媒体の温度を検出し、該温度を基に温度調節
弁ｆの開度を調整し、熱交換器Ｃへ送られる被冷却媒体
の流量とバイパス管ｇを通る被冷却媒体の流量を調整し
、被冷却媒体の温度制御を行っている。In the above-mentioned cooling system, a constant amount of cooling medium is always supplied from the cooling medium pump a to the heat exchanger C regardless of the temperature change of the cooling medium or the load fluctuation of the medium to be cooled. The temperature of the cooled medium is detected by the temperature detector e installed in the cooled medium pipe d, and the opening degree of the temperature control valve f is adjusted based on the detected temperature. The temperature of the cooled medium is controlled by adjusting the flow rate and the flow rate of the cooled medium passing through the bypass pipe g.
［発明が解決しようとする問題点］
しかるに、一般に冷却媒体の温度が低くなったり或いは
被冷却媒体の負荷が低下すれば、冷却媒体量は少なくて
すむが、上記冷却システムでは、被冷却媒体の熱交換器
への通過量を調節し冷却媒体ポンプａから吐出される冷
却媒体量は常に一定で流１１５１整ができないため、冷
却媒体ポンプの駆動エネルギーに無駄が多い。[Problems to be Solved by the Invention] However, in general, if the temperature of the cooling medium becomes lower or the load on the medium to be cooled decreases, the amount of cooling medium can be reduced. Since the amount of cooling medium discharged from the cooling medium pump a is always constant by adjusting the amount passing through the heat exchanger and the flow 1151 cannot be adjusted, there is a lot of wasted energy for driving the cooling medium pump.
本発明は上述の実情に鑑み冷却媒体ポンプの駆動エネル
ギーの節約゛を図ることを目的としてなしたものである
。In view of the above-mentioned circumstances, the present invention has been made with the object of saving driving energy of a cooling medium pump.
［問題点を解決するための手段］
本発明は冷却媒体ポンプと熱交換器との間に設けられ冷
却媒体圧力が略一定になるよう制御する装置と、前記熱
交換器で冷却されて該熱交換器から流出した被冷却媒体
の温度を基に前記熱交換器へ流入する冷却媒体の流量或
いは前記熱交換器から流出する冷却媒体の流量を制御す
る温度調節弁を設けた構成を備えている。[Means for Solving the Problems] The present invention includes a device that is provided between a cooling medium pump and a heat exchanger and controls the cooling medium pressure to be substantially constant; The heat exchanger is equipped with a temperature control valve that controls the flow rate of the coolant flowing into the heat exchanger or the flow rate of the coolant flowing out from the heat exchanger based on the temperature of the cooled medium flowing out from the exchanger. .
［作 用コ
熱交換器から流出した被冷却媒体の温度に基づき冷却媒
体の流れる温度調節弁の開度が制御され、熱交換器へは
被冷却媒体の温度に対応した流量の冷却媒体が供給され
る。[Function] The opening degree of the temperature control valve through which the cooling medium flows is controlled based on the temperature of the medium to be cooled flowing out from the heat exchanger, and the cooling medium is supplied to the heat exchanger at a flow rate corresponding to the temperature of the medium to be cooled. be done.
［実 施 例］
以下、本発明の実施例を添付図面を参照しつつ説明する
。[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.
第１図は本発明の一実施例で、図中１は海水等の冷却媒
体を吸引管２を介して吸込み加圧して吐出する冷却媒体
ポンプ、３は冷却媒体ポンプ１から吐出された冷却媒体
を送給する冷却媒体配管、４は冷却媒体配管３から送給
された冷却媒体を貯留するヘッドタンク、５はヘッドタ
ンク４からの冷却媒体を分配送給するために分岐して並
列に配列された複数の冷却媒体配管、６は各冷却媒体配
管５に接続した熱交換器、７は熱交換器６から排出され
た冷却媒体を送給する冷却媒体配管、８は熱交換器６へ
主機からの清水或いは油等の被冷却媒体を送給する被冷
却媒体配管、９は熱交換器６で冷却された被冷却媒体を
主機へ送給するための被冷却媒体配管、１０はヘッドタ
ンク４の側面下部に取付けた圧力式の液面検出装置、１
１は例えば圧力式の液面検出装置ＩＯで検出し冷却媒体
の液面により冷却媒体ポンプｌヘオン・オフの指令信号
を与える送信ライン、１２は被冷却媒体配管９に設けた
温度検出器、１３は冷却媒体配管７に取付けた温度調節
弁、１４は温度検出器１２て検出した被冷却媒体の温度
により温度調節弁１３開閉の指令信号を与える送信ライ
ンである。FIG. 1 shows an embodiment of the present invention. In the figure, 1 is a coolant pump that sucks in a coolant such as seawater through a suction pipe 2, pressurizes it, and then discharges it. 3 is a coolant discharged from the coolant pump 1. 4 is a head tank for storing the coolant sent from the coolant pipe 3, and 5 is a head tank arranged in parallel in order to distribute and distribute the coolant from the head tank 4. 6 is a heat exchanger connected to each coolant pipe 5; 7 is a coolant pipe that supplies the coolant discharged from the heat exchanger 6; 8 is a pipe from the main engine to the heat exchanger 6; 9 is a cooled medium pipe for feeding a cooled medium such as fresh water or oil to the main engine; 10 is a cooled medium pipe for feeding the cooled medium cooled by the heat exchanger 6 to the main engine; Pressure-type liquid level detection device installed at the bottom of the side, 1
1 is a transmission line that is detected by a pressure-type liquid level detection device IO and gives a command signal to turn on/off the coolant pump l depending on the liquid level of the coolant; 12 is a temperature detector provided in the cooled medium pipe 9; 13 14 is a temperature control valve attached to the cooling medium pipe 7, and 14 is a transmission line that provides a command signal for opening and closing the temperature control valve 13 based on the temperature of the medium to be cooled detected by the temperature detector 12.
冷却媒体ポンプ１により冷却媒体配管３を介して送給さ
れた冷却媒体はヘッドタンク４に貯′留され、ヘッドタ
ンク４の冷却媒体の液面か上限になると、液面検出装置
ｌＯで検出された信号が送信ライン１１から冷却媒体ポ
ンプｌに送られ、冷却媒体ポンプ１は停止する。The coolant fed through the coolant pipe 3 by the coolant pump 1 is stored in the head tank 4, and when the coolant level in the head tank 4 reaches the upper limit, it is detected by the liquid level detection device IO. A signal is sent from the transmission line 11 to the coolant pump 1, and the coolant pump 1 is stopped.
主機より送られて来た被冷却媒体は、被冷却媒体配管８
から熱交換器６へ送給され、ヘッドタンク４から冷却媒
体配管５を通って熱交換器６へ送給される冷却媒体によ
り冷却され、被冷却媒体配管９通って主機へ戻される。The cooled medium sent from the main engine is transferred to the cooled medium piping 8.
The coolant is fed from the head tank 4 to the heat exchanger 6 through the coolant pipe 5, cooled by the coolant fed to the heat exchanger 6, and returned to the main engine through the cooled medium pipe 9.
この際、熱交換器６から被冷却媒体配管９へ流入した被
冷却媒体の温度は温度検出器１２により検出され、該温
度検出器１２からは被冷却媒体の温度に比例した開度指
令が送信ライン１４を介して温度調節弁１３に与えられ
、該温度調節弁１３はその開度指令に対応して開閉制御
される。このため、ヘッドタンク４から冷却媒体配管５
を通って熱交換器６へ送給される冷却媒体の流量は温度
調節弁１３によって制御される。At this time, the temperature of the cooled medium flowing from the heat exchanger 6 into the cooled medium piping 9 is detected by the temperature detector 12, and an opening command proportional to the temperature of the cooled medium is transmitted from the temperature detector 12. The temperature control valve 13 is supplied via a line 14, and the temperature control valve 13 is controlled to open or close in accordance with the opening command. For this reason, from the head tank 4 to the coolant pipe 5
The flow rate of the cooling medium fed through to the heat exchanger 6 is controlled by a temperature control valve 13.
例えば冷却媒体の温度が低下した場合には、被冷却媒体
配管８から熱交換器６へ導入される被冷却媒体の流量が
変らなければ、温度検出器１２で検出される被冷却媒体
の温度は所定の温度より低下するため、温度調節弁１３
は絞られて冷却媒体配管５から熱交換器６へ導入される
冷却媒体の流量は少くなる。又被冷却媒体配管８から熱
交換器６へ導入される被冷却媒体の流量が減少した場合
も温度検出器１２で検出される被冷却媒体の温度は所定
の温度より低下するため温度調節弁１３は絞られて冷却
媒体配管５から熱交換器６へ導入される冷却媒体の流量
は少なくなる。For example, when the temperature of the cooling medium decreases, if the flow rate of the cooling medium introduced from the cooling medium piping 8 to the heat exchanger 6 does not change, the temperature of the cooling medium detected by the temperature sensor 12 will decrease. Since the temperature drops below a predetermined temperature, the temperature control valve 13
The flow rate of the coolant introduced from the coolant pipe 5 to the heat exchanger 6 is reduced. Furthermore, even when the flow rate of the medium to be cooled introduced from the medium to be cooled pipe 8 to the heat exchanger 6 decreases, the temperature of the medium to be cooled detected by the temperature detector 12 falls below a predetermined temperature, so the temperature control valve 13 is throttled, and the flow rate of the coolant introduced from the coolant pipe 5 to the heat exchanger 6 decreases.
ヘッドタンク４から冷却媒体が冷却媒体配管５へ流出す
ると、ヘッドタンク４内の冷却媒体の液面は低下するが
、該液面が下限になると液面検出装置１０から指令が送
信ライン■１を介して冷却媒体ポンプｌに与えられ、冷
却媒体ポンプｌが駆動され、冷却媒体が冷却媒体配管３
からヘッドタンク４へ送給される。When the cooling medium flows out from the head tank 4 to the cooling medium pipe 5, the liquid level of the cooling medium in the head tank 4 decreases, but when the liquid level reaches the lower limit, a command is sent from the liquid level detection device 10 to the transmission line 1. The coolant is supplied to the coolant pump l via the coolant pipe 3, the coolant pump l is driven, and the coolant is supplied to the coolant pipe 3.
from there to the head tank 4.
更に、被冷却媒体を冷却しなくても良い場合には、ヘッ
ドタンク４内の冷却媒体の液面が下限より上にある限り
、冷却媒体ポンプｌは停止している。Furthermore, if the medium to be cooled does not need to be cooled, the cooling medium pump 1 is stopped as long as the liquid level of the cooling medium in the head tank 4 is above the lower limit.
上述のように、ヘッドタンク４内の冷却媒体の液面によ
り冷却媒体ポンプ１の駆動、停止を行うようにしている
ため冷却媒体ポンプｌが常時駆動されることはなく、従
って電力が節約される。As mentioned above, since the coolant pump 1 is driven and stopped depending on the liquid level of the coolant in the head tank 4, the coolant pump 1 is not constantly driven, and therefore power is saved. .
ヘッドタンク４の液面調節のため、上述の実施例では冷
却媒体ポンプＩをオン・オフ運転しているが、駆動され
るポンプの台数を制御する台数制御を行っても良いし、
或いはポンプ回転数を制御する回転数制御ポンプから吐
出される冷却媒体の流量を制御する流量制御を行っても
゛良い。In order to adjust the liquid level in the head tank 4, the coolant pump I is operated on and off in the above embodiment, but the number of pumps to be driven may be controlled.
Alternatively, flow rate control may be performed to control the flow rate of the cooling medium discharged from a rotation speed control pump that controls the pump rotation speed.
第２図（ａ）は第１図中のヘッドタンク４の冷却媒体の
液面を検出する手段の他の例で、フロートスイッチ１５
ａ、 １５ｂ、 １５ｃを設けた例である。斯かる検出
手段を設けても冷却媒体ポンプ１は単なるオン・オフ制
御の外に、ヘッドタンク４の液面に応じた台数制御、回
転数制御、流量制御を行うことができる。FIG. 2(a) shows another example of the means for detecting the liquid level of the cooling medium in the head tank 4 shown in FIG.
This is an example in which a, 15b, and 15c are provided. Even if such a detection means is provided, the coolant pump 1 can perform not only simple on/off control but also number control, rotation speed control, and flow rate control according to the liquid level of the head tank 4.
第２図（ｔｏは第１図中のヘッドタンク４の冷却媒体の
液面を検出する手段の他の例で、パージ式或いはマグネ
ット式の液面検出装置１Ｂを設けた例である。このよう
な検出手段を設けても冷却媒体ポンプｌはオン・オフ制
御、台数制御、回転数制御、流量制御を行うことができ
る。FIG. 2 (to is another example of the means for detecting the liquid level of the cooling medium in the head tank 4 in FIG. 1, and is an example in which a purge type or magnetic type liquid level detection device 1B is provided. Even if a detection means is provided, the cooling medium pump l can be controlled on/off, the number of units, the number of rotations, and the flow rate.
第３図は本発明の他の実施例で、ヘッドタンク４のかわ
りに圧力タンク１７を設け、圧力タンク１７上側部に圧
力スイッチ等の圧力検出装置１８を設けた例である。FIG. 3 shows another embodiment of the present invention, in which a pressure tank 17 is provided in place of the head tank 4, and a pressure detection device 18 such as a pressure switch is provided on the upper side of the pressure tank 17.
第４図は本発明の更に他の実施例で、ヘッドタンクや圧
力タンクは設置せず、冷却媒体配管３の中途部に圧力ス
イッチ等の圧力検出装置１８を設けた例である。FIG. 4 shows still another embodiment of the present invention, in which a head tank and a pressure tank are not installed, and a pressure detection device 18 such as a pressure switch is provided in the middle of the cooling medium pipe 3.
第３図或いは第４図のようにしても冷却媒体ポンプ１の
オン・オフ制御、台数制御、回転数制御、流量制御を行
うことが可能である。It is also possible to perform on/off control, number control, rotation speed control, and flow rate control of the cooling medium pump 1 as shown in FIG. 3 or 4.
第３図及び第４図中第１図に示す符号と同一のものは同
一のものを示す。In FIGS. 3 and 4, the same reference numerals as those shown in FIG. 1 indicate the same components.
なお、本発明の実施例では温度調節弁を熱交換器出側に
設ける場合について説明したが、熱交換器入側に設けて
も実施できること、その他、本発明の要旨を逸脱しない
範囲内で種々変更を加え得ること、等は勿論である。In addition, in the embodiment of the present invention, a case has been described in which the temperature control valve is provided on the heat exchanger outlet side, but it may also be provided on the heat exchanger inlet side, and various other modifications may be made without departing from the gist of the present invention. Of course, changes may be made.
［発明の効果］
本発明の冷却装置によれば、冷却媒体ポンプは常時運転
せずとも冷却媒体の流量を負荷変動に対応して調節でき
るため、冷却媒体ポンプの駆動エネルギーが節約でき、
冷却コストが低減できる、等種々の優れた効果を奏し得
る。[Effects of the Invention] According to the cooling device of the present invention, the flow rate of the cooling medium can be adjusted in response to load fluctuations without the need to constantly operate the cooling medium pump, so the driving energy of the cooling medium pump can be saved.
Various excellent effects can be achieved, such as reducing cooling costs.
第１図は本発明の冷却装置の一実施例の説明図、第２図
（ａ）山）は第１図のタンク液面を検出する手段の他の
例の説明図、第３図は本発明の冷却装置の他の実施例の
説明図、第４図は本発明の冷却装置の又他の実施例の説
明図、第５図は従来の冷却装置の説明図である。
図中１は冷却媒体ポンプ、３は冷却媒体配管、４はヘッ
ドタンク、５は冷却媒体配管、６は熱交換器、７は冷却
媒体配管、８，９は被冷却媒体配管、１０は液面検出装
置、１２は温度検出器、１３は温度調節弁、１５ａ、１
５ｂ、１５ｃはフロートスイッチ、１６は液面検出装置
、１７は圧力タンク、１８は圧力検出装置を示す。Fig. 1 is an explanatory diagram of one embodiment of the cooling device of the present invention, Fig. 2 (a) is an explanatory diagram of another example of the means for detecting the tank liquid level in Fig. 1, and Fig. 3 is an explanatory diagram of an embodiment of the cooling device of the present invention. FIG. 4 is an explanatory diagram of another embodiment of the cooling device of the invention, FIG. 4 is an explanatory diagram of another embodiment of the cooling device of the invention, and FIG. 5 is an explanatory diagram of a conventional cooling device. In the figure, 1 is the coolant pump, 3 is the coolant pipe, 4 is the head tank, 5 is the coolant pipe, 6 is the heat exchanger, 7 is the coolant pipe, 8 and 9 are the cooled medium pipes, and 10 is the liquid level. Detection device, 12 is a temperature detector, 13 is a temperature control valve, 15a, 1
5b and 15c are float switches, 16 is a liquid level detection device, 17 is a pressure tank, and 18 is a pressure detection device.
Claims (1)
体圧力が略一定になるよう制御する装置と、前記熱交換
器で冷却されて該熱交換器から流出した被冷却媒体の温
度を基に前記熱交換器へ流入する冷却媒体の流量或いは
前記熱交換器から流出する冷却媒体の流量を制御する温
度調節弁を設けたことを特徴とする冷却装置。1) A device installed between a cooling medium pump and a heat exchanger to control the cooling medium pressure to be approximately constant; 1. A cooling device comprising a temperature control valve that controls the flow rate of a cooling medium flowing into the heat exchanger or the flow rate of a cooling medium flowing out from the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6959587A JPH0820156B2 (en) | 1987-03-24 | 1987-03-24 | Cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6959587A JPH0820156B2 (en) | 1987-03-24 | 1987-03-24 | Cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63238379A true JPS63238379A (en) | 1988-10-04 |
| JPH0820156B2 JPH0820156B2 (en) | 1996-03-04 |
Family
ID=13407342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6959587A Expired - Fee Related JPH0820156B2 (en) | 1987-03-24 | 1987-03-24 | Cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0820156B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008309393A (en) * | 2007-06-14 | 2008-12-25 | Toyo Eng Works Ltd | Cooling system |
| JP2009047368A (en) * | 2007-08-21 | 2009-03-05 | Orion Mach Co Ltd | Cooling system |
| JP2011122771A (en) * | 2009-12-11 | 2011-06-23 | Nyk Trading Corp | Heat load cooling device and control device for the heat load cooling device |
| JP2015514957A (en) * | 2012-04-25 | 2015-05-21 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Supply method of refrigerant in secondary circuit |
-
1987
- 1987-03-24 JP JP6959587A patent/JPH0820156B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008309393A (en) * | 2007-06-14 | 2008-12-25 | Toyo Eng Works Ltd | Cooling system |
| JP2009047368A (en) * | 2007-08-21 | 2009-03-05 | Orion Mach Co Ltd | Cooling system |
| JP2011122771A (en) * | 2009-12-11 | 2011-06-23 | Nyk Trading Corp | Heat load cooling device and control device for the heat load cooling device |
| JP2015514957A (en) * | 2012-04-25 | 2015-05-21 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Supply method of refrigerant in secondary circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0820156B2 (en) | 1996-03-04 |
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