JPH01132493A - Cooling water system for boat engine part - Google Patents
Cooling water system for boat engine partInfo
- Publication number
- JPH01132493A JPH01132493A JP29049987A JP29049987A JPH01132493A JP H01132493 A JPH01132493 A JP H01132493A JP 29049987 A JP29049987 A JP 29049987A JP 29049987 A JP29049987 A JP 29049987A JP H01132493 A JPH01132493 A JP H01132493A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- fresh water
- cooler
- clean water
- temperature
- 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
Landscapes
- Control Of Temperature (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、船内機関部主及び補機を冷却するのに用いら
れる冷却海水ポンプ及び低温冷却清水ポンプの台数を制
御する船内機関部冷却水システムに関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to cooling water for inboard engines that controls the number of cooling seawater pumps and low-temperature cooling fresh water pumps used to cool the main and auxiliary engines of ships. Regarding the system.
（従来の技術及びその問題点）
従来、船内機関部主及び補機を冷却するセントラルクー
リングシステムは、例えば第２図に示すように構成され
ていた。(Prior Art and its Problems) Conventionally, a central cooling system for cooling the main and auxiliary engines of a ship has been configured, for example, as shown in FIG. 2.
第２図において、１０はセントラル清水クーラーであり
、このクーラーには冷却海水ポンプ１１により冷却海水
が供給されることにより、該クーラーを通過する清水が
冷却せしめられ、この低温冷却清水が低温冷却清水ポン
プ１２によりシステム１３に供給され、このシステム１
３の冷却が行なわれる。In FIG. 2, 10 is a central fresh water cooler, and this cooler is supplied with cooling seawater by a cooling seawater pump 11 to cool the fresh water passing through the cooler. A pump 12 supplies a system 13, which system 1
3 cooling is performed.
１４はセントラル清水クーラー１０の出口温度を制御す
る温度調整弁であり、この調整弁についてセントラル清
水クーラー１０に対してバイパスされた経路が設けられ
ている。Reference numeral 14 denotes a temperature regulating valve that controls the outlet temperature of the central fresh water cooler 10, and a bypass path to the central fresh water cooler 10 is provided for this regulating valve.
海水温度の低下時、及び負荷の低下時は上記温度調整弁
１４により清水クーラー１０をバイパスして温度調整を
行なう。When the seawater temperature decreases or when the load decreases, the temperature adjustment valve 14 bypasses the fresh water cooler 10 to adjust the temperature.
このようなセントラルクーリングシステムにおいては、
低温冷却清水ポンプ１２及び冷却海水ポンプ１１共に各
同容量（Ｑｍ３ ／ｎ）のものが−船釣には３台ずつ装
備され、温度の調整は主として冷却海水の温度及び温度
調整弁の位置を検出することにより、冷却海水ポンプの
台数制御、速度制御及び相互の組合せにより行なわれ、
システムの省エネルギー化が行なわれている。In such a central cooling system,
Both the low-temperature cooling fresh water pump 12 and the cooling seawater pump 11 have the same capacity (Qm3/n) - three units each are equipped for boat fishing, and temperature adjustment is mainly performed by detecting the temperature of the cooling seawater and the position of the temperature adjustment valve. This is done by controlling the number of cooling seawater pumps, controlling their speed, and combining them with each other.
Energy saving of the system is being carried out.
本発明はこのような従来のセントラルクーリングシステ
ムにおいて、特にセントラル清水クーラーとしてプレー
ト型を用いたシステムにおけるポンプの台数を削減する
とともに温度調整弁を不要とした新規な船内機関部冷却
水システムを提供することを目的とする。The present invention provides a novel inboard engine cooling water system that reduces the number of pumps in such conventional central cooling systems, particularly in systems that use a plate type central fresh water cooler, and eliminates the need for temperature control valves. The purpose is to
（問題点を解決するための手段）
上述した問題点を解決するために本発明の船内機関部冷
却水システムは、機関部主及び補機の冷却用清水の冷却
を行なう清水クーラーと、この清水クーラーにより冷却
された低温冷却清水を前記機関部主及び補機に供給する
低温冷却清水ポンプと、前記清水クーラーに冷却海水を
供給する冷却海水ポンプとからなる船内機関部冷却水シ
ステムであって、前記清水クーラーの流量制御を行なう
ことなく該清水クーラーの出口清水温度を検出すること
により冷却海水ポンプと低温冷却清水ポンプの台数制御
を行なうことを特徴とする。(Means for Solving the Problems) In order to solve the above-mentioned problems, the inboard engine cooling water system of the present invention includes a fresh water cooler that cools fresh water for cooling the engine main and auxiliary equipment, and a fresh water cooler that cools the main engine and auxiliary equipment. An inboard engine cooling water system comprising a low temperature cooling fresh water pump that supplies low temperature cooled fresh water cooled by a cooler to the engine main and auxiliary equipment, and a cooling sea water pump that supplies cooling seawater to the fresh water cooler, The present invention is characterized in that the number of cooling seawater pumps and low-temperature cooling fresh water pumps is controlled by detecting the fresh water temperature at the outlet of the fresh water cooler without controlling the flow rate of the fresh water cooler.
（作用）
上述した構成において、清水クーラーには低温冷却清水
ポンプから供給される低温冷却清水の全量が流れる。従
って、清水クーラーの出口温度を検出することにより海
水温度及び負荷の変化が想定可能となり、冷却海水ポン
プ及び冷却清水ポンプの台数制御が可能となる。(Function) In the above-described configuration, the entire amount of low-temperature cooling fresh water supplied from the low-temperature cooling fresh water pump flows into the fresh water cooler. Therefore, by detecting the outlet temperature of the fresh water cooler, changes in seawater temperature and load can be estimated, and the number of cooling seawater pumps and cooling freshwater pumps can be controlled.
（実施例）
以下、本発明の実施例について図面を参照しながら説明
する。(Example) Examples of the present invention will be described below with reference to the drawings.
第１図は、本発明の船内機関部冷却水システムの実施例
を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing an embodiment of the inboard engine cooling water system of the present invention.
第１図において、２はセントラル清水クーラーであり、
プレート型のものが用いられている。このクーラーには
冷却海水ポンプ３により冷却海水が供給され清水クーラ
ー２を通過する清水の冷却が行なわれるとともに、低温
冷却清水ポンプ４により上記低温冷却清水がシステム５
に供給されシステム５の冷却が行なわれる。上記のポン
プ３．４の容量及び使用台数はシステムに必要な容量を
Ｑ（ｍ３／ｎ）とすると、本実施例に使用されるポンプ
はＱ／２のものであり、この容量のポンプが夫々２台ず
つ設けられている。６はセントラル清水クーラー２のバ
イパス側に設けられた弁であり、温度調整機能を具備せ
ずセントラル清水クーラー２をバイパスする時にのみ使
用される。In Figure 1, 2 is a central fresh water cooler;
A plate type one is used. Cooling seawater is supplied to this cooler by a cooling seawater pump 3 to cool the fresh water passing through the fresh water cooler 2, and the low temperature cooling fresh water is supplied to the system 5 by a low temperature cooling fresh water pump 4.
is supplied to cool the system 5. Regarding the capacity and number of pumps used in pump 3.4 above, assuming that the capacity required for the system is Q (m3/n), the pump used in this example is of Q/2, and each pump with this capacity is There are two units each. 6 is a valve provided on the bypass side of the central fresh water cooler 2, which does not have a temperature adjustment function and is used only when the central fresh water cooler 2 is bypassed.
上記のような機関部冷却清水システムにおいて、セント
ラル清水クーラー２は常時全量流れるように構成され、
又熱交換量が最大の時でも出口清水温度が規定値（例え
ば、３７°Ｃとする）を超えないような構成としである
。In the engine cooling fresh water system as described above, the central fresh water cooler 2 is configured so that the entire amount flows at all times,
Furthermore, the configuration is such that the outlet fresh water temperature does not exceed a specified value (for example, 37° C.) even when the amount of heat exchange is maximum.
通常、セントラルクーリングシステムは海水温度３２°
Ｃ１該システムを構成する機器の最大負荷で設計され、
海水温度の低下、負荷の低下時も冷却清水は全量セント
ラル清水クーラー２を流れる。このため、海水温度の変
化や負荷の変化は、セントラル清水クーラー２の出口清
水温度で判断することが可能となり、従来の温度調整弁
を不要としている。Normally, the central cooling system has a seawater temperature of 32°
C1 Designed with the maximum load of the equipment that makes up the system,
Even when the seawater temperature decreases or the load decreases, the entire amount of cooling fresh water flows through the central fresh water cooler 2. Therefore, changes in seawater temperature and load can be determined based on the fresh water temperature at the outlet of the central fresh water cooler 2, eliminating the need for a conventional temperature regulating valve.
また、冷却海水ポンプ３、低温冷却清水ポンプ４の運転
台数が夫々２台から１台になっても、流量は５０％に半
減するのではなく８０％程度を期待できることから、海
水温度、負荷及び冷却海水ポンプ３、低温冷却清水ポン
プ４の運転台数の組合せによりクーリングシステム構成
機器を満足するよう清水クーラー２の出口清水温度によ
り各ポンプの運転台数制御を行なうことができる。Furthermore, even if the number of operating cooling seawater pumps 3 and low-temperature cooling freshwater pumps 4 is reduced from two to one, the flow rate can be expected to be around 80% rather than halved to 50%. By combining the number of operating cooling seawater pumps 3 and low-temperature cooling fresh water pumps 4, the number of operating pumps can be controlled based on the fresh water temperature at the outlet of the fresh water cooler 2 so as to satisfy the cooling system components.
（考案の効果）
以上説明したように、本発明によれば、従来の温度調整
弁を用いることなく、清水クーラーの出口温度を検出す
ることにより海水温度及び負荷の変化を想定可能として
いる。又、本発明で用いられる冷却海水ポンプおよび低
温冷却清水ポンプの装備台数は夫々２台ずつとなり、又
夫々のポンプの台数制御を行なうのでほとんどの場合１
台運転でカバーでき、エネルギー削減に有効である。(Effects of the Invention) As described above, according to the present invention, changes in seawater temperature and load can be assumed by detecting the outlet temperature of the fresh water cooler without using a conventional temperature control valve. In addition, the number of installed cooling seawater pumps and low-temperature cooling fresh water pumps used in the present invention is two each, and since the number of each pump is controlled, in most cases only one
This can be covered by machine operation, which is effective in reducing energy consumption.
第１図は本発明の船内機関部冷却清水システムの実施例
を示す概略構成図、第２図は従来のセントラルクーリン
グシステムの概略構成図である。
２・・拳・セントラル清水クーラー
３・・・・冷却海水ポンプ
４拳・・・低温冷却清水ポンプ
５・・・・システム
代理人 弁理士 山 下 穣 平FIG. 1 is a schematic configuration diagram showing an embodiment of the inboard engine cooling fresh water system of the present invention, and FIG. 2 is a schematic configuration diagram of a conventional central cooling system. 2...Fist/Central fresh water cooler 3...Cooling sea water pump 4 Fist...Low temperature cooling fresh water pump 5...System agent Patent attorney Johei Yamashita
Claims (1)
ーラーと、この清水クーラーにより冷却された低温冷却
清水を前記機関部に供給する低温冷却清水ポンプと、前
記清水クーラーに冷却海水を供給する冷却海水ポンプと
からなる船内機関部冷却水システムであって、前記清水
クーラーの流量制御を行なうことなく該清水クーラーの
出口清水温度を検出することにより冷却海水ポンプと低
温冷却清水ポンプの台数制御を行なうことを特徴とする
船内機関部冷却システム。A fresh water cooler that cools fresh water for cooling the main engine part and auxiliary equipment, a low temperature cooling fresh water pump that supplies the low temperature cooling fresh water cooled by the fresh water cooler to the engine part, and a low temperature cooling fresh water pump that supplies cooling seawater to the fresh water cooler. An inboard engine cooling water system consisting of a cooling seawater pump, in which the number of cooling seawater pumps and low-temperature cooling freshwater pumps is controlled by detecting the fresh water temperature at the outlet of the freshwater cooler without controlling the flow rate of the freshwater cooler. An inboard engine cooling system characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29049987A JPH01132493A (en) | 1987-11-19 | 1987-11-19 | Cooling water system for boat engine part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29049987A JPH01132493A (en) | 1987-11-19 | 1987-11-19 | Cooling water system for boat engine part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01132493A true JPH01132493A (en) | 1989-05-24 |
Family
ID=17756815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29049987A Pending JPH01132493A (en) | 1987-11-19 | 1987-11-19 | Cooling water system for boat engine part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01132493A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009139201A1 (en) * | 2008-05-12 | 2009-11-19 | 三菱重工業株式会社 | Speed control apparatus for cooling sea-water transfer pump |
| KR20140123118A (en) * | 2013-04-10 | 2014-10-22 | 대우조선해양 주식회사 | Fresh water supply system |
| JP2014214937A (en) * | 2013-04-24 | 2014-11-17 | 三菱重工業株式会社 | Ship cold water generation system and ship |
| CN104802976A (en) * | 2014-08-15 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Cooling system of offshore device and ship and offshore platform with same |
| GB2593919A (en) * | 2020-04-09 | 2021-10-13 | Caterpillar Motoren Gmbh & Co | Two-way valve for controlling a temperature of a coolant for an internal combustion engine |
-
1987
- 1987-11-19 JP JP29049987A patent/JPH01132493A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009139201A1 (en) * | 2008-05-12 | 2009-11-19 | 三菱重工業株式会社 | Speed control apparatus for cooling sea-water transfer pump |
| JP2009274469A (en) * | 2008-05-12 | 2009-11-26 | Mitsubishi Heavy Ind Ltd | Rotation speed control apparatus for cooling seawater transfer pump |
| KR101222799B1 (en) * | 2008-05-12 | 2013-01-15 | 미츠비시 쥬고교 가부시키가이샤 | Speed control apparatus for cooling sea-water transfer pump |
| KR20140123118A (en) * | 2013-04-10 | 2014-10-22 | 대우조선해양 주식회사 | Fresh water supply system |
| JP2014214937A (en) * | 2013-04-24 | 2014-11-17 | 三菱重工業株式会社 | Ship cold water generation system and ship |
| CN104802976A (en) * | 2014-08-15 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Cooling system of offshore device and ship and offshore platform with same |
| CN104802976B (en) * | 2014-08-15 | 2018-03-06 | 烟台中集来福士海洋工程有限公司 | The cooling system of offshore set-up and ship, the ocean platform using the cooling system |
| GB2593919A (en) * | 2020-04-09 | 2021-10-13 | Caterpillar Motoren Gmbh & Co | Two-way valve for controlling a temperature of a coolant for an internal combustion engine |
| GB2593919B (en) * | 2020-04-09 | 2023-03-29 | Caterpillar Motoren Gmbh & Co | Two-way valve for controlling a temperature of a coolant for an internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3358654A (en) | Engine cooling system | |
| US4133284A (en) | Cooling system for marine engines | |
| US4565175A (en) | Engine cooling system | |
| JPS6316121A (en) | Cooling device for internal combustion engine | |
| JP7248378B2 (en) | Method for operating ship cooling system | |
| GB2164740A (en) | Engine cooling system | |
| JPH01132493A (en) | Cooling water system for boat engine part | |
| US3105472A (en) | Cooling system for marine engines | |
| JP2010065612A (en) | Marine main engine cooling facility, cooling method and cooling system in ship | |
| JPH0629035A (en) | Co-operative control device of fuel cell power-generation plant and waste heat collection system | |
| CN110481752A (en) | A kind of modified cabin seawater pipe | |
| US3380466A (en) | Thermostatic by-pass valves | |
| ES8606570A1 (en) | Method and arrangement for operating a cooling plant. | |
| JP2019031158A (en) | Cooling system for vessel | |
| JPH0310343Y2 (en) | ||
| KR20030023009A (en) | cooling system of engine | |
| JPS6051589A (en) | Fresh water preparing apparatus due to utilization of high temperature waste heat | |
| KR20130049985A (en) | The dual temperature fresh water cooled cooling system for the vessel | |
| US20250123640A1 (en) | A Thermal System for a Marine Vessel, Such System Installed in a Marine Vessel, a Marine Vessel Comprising the Thermal System, a Method of Controlling a Thermal System, and a Control Device | |
| JP4649368B2 (en) | Cooling device for internal combustion engine | |
| JPS59190426A (en) | Supercharged air cooler | |
| CN211819610U (en) | Variable-temperature engine cylinder sleeve water cooling device | |
| JPH05248707A (en) | Heat recoverying device with parallel heat exchanger | |
| JPH01163407A (en) | Circulating system for cooling water for bearing oil | |
| JPS6046249B2 (en) | Diesel engine supply air cooling system |