JPH0726953A - Abnormal condition detecting alarm device in engine sea water pump system for ship - Google Patents
Abnormal condition detecting alarm device in engine sea water pump system for shipInfo
- Publication number
- JPH0726953A JPH0726953A JP16529693A JP16529693A JPH0726953A JP H0726953 A JPH0726953 A JP H0726953A JP 16529693 A JP16529693 A JP 16529693A JP 16529693 A JP16529693 A JP 16529693A JP H0726953 A JPH0726953 A JP H0726953A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- sea water
- pressure sensor
- water pump
- signal
- 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
- 239000013535 sea water Substances 0.000 title claims abstract description 39
- 230000002159 abnormal effect Effects 0.000 title abstract description 4
- 230000005856 abnormality Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、海水を冷却媒体とする
舶用エンジンの海水ポンプ系統に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marine engine seawater pump system using seawater as a cooling medium.
【０００２】[0002]
【従来の技術】舶用エンジンの冷却を海水で冷却する熱
交換器を介して行う技術は広く行なわれている。2. Description of the Related Art A technique for cooling a marine engine via a heat exchanger for cooling with seawater is widely used.
【０００３】そして、その冷却用海水は船底に設けられ
たストレーナを介して海水ポンプに入り、熱交換器でエ
ンジンの熱を吸収して船外に排出され、その海水ポンプ
系統の異常はエンジン水温を検出して警報を発する技術
は知られている。Then, the seawater for cooling enters the seawater pump through a strainer provided at the bottom of the ship, absorbs heat of the engine by a heat exchanger and is discharged to the outside of the ship, and the abnormality of the seawater pump system is the engine water temperature. There is known a technique for detecting the alarm and issuing an alarm.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、水中に
投棄されたビニールシート等が前記ストレーナに詰ま
り、エンジンの冷却が阻害されオーバーヒートでエンジ
ンが焼付く事故が発生する場合がある。However, there is a case where an engine burns due to overheating due to clogging of the strainer with a vinyl sheet or the like dumped in water, which impedes cooling of the engine.
【０００５】また、海水ポンプが故障すれば同様な事故
が発生する。それで、従来のエンジン水温を検出して異
常警報を発する方法では、水温が高い原因は分からない
ので対応できないという問題がある。If the seawater pump fails, a similar accident will occur. Therefore, the conventional method of detecting the engine water temperature and issuing an abnormal alarm has a problem that it cannot be dealt with because the cause of the high water temperature is not known.
【０００６】したがって、本発明は、海水ポンプ系統の
異常を検出すると共に、その異常の内容を判断して警報
を発し表示する海水ポンプ系統の異常検出警報装置を提
供する事を目的としている。Therefore, an object of the present invention is to provide an abnormality detection alarm device for a seawater pump system, which detects an abnormality of the seawater pump system and judges the content of the abnormality to issue and display an alarm.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、海水を
冷却媒体とする舶用エンジンの海水ポンプ系統におい
て、その海水ポンプの入口および出口に圧力を検出する
圧力センサおよびエンジンの回転を検出するエンジン回
転センサとをそれぞれ設け、その圧力センサからの信号
と予め設けたエンジン回転数に対する圧力のマップとか
ら海水ポンプ系統の異常を検出判断し警報を発する故障
内容表示盤を設けている。According to the present invention, in a seawater pump system for a marine engine using seawater as a cooling medium, a pressure sensor for detecting pressure at the inlet and outlet of the seawater pump and rotation of the engine are detected. An engine rotation sensor is provided, and a failure content display panel is provided to detect and determine an abnormality in the seawater pump system from a signal from the pressure sensor and a map of pressure with respect to the engine rotation speed that is provided in advance.
【０００８】[0008]
【作用】上記のように構成された舶用エンジン海水ポン
プ系統の異常検出警報装置において、異常検出警報装置
は海水ポンプの吐出側および吸入側の圧力とエンジン回
転数との関係にもとずいたマップとエンジン運転中の吐
出圧、吸入圧とから異常を検出判断し故障内容表示盤に
表示すると共にブザーで警報するので、運転者は異常箇
所を点検して対応できる。In the abnormality detection alarm device for the marine engine seawater pump system configured as described above, the abnormality detection alarm device is a map based on the relationship between the pressure on the discharge side and the suction side of the seawater pump and the engine speed. And the abnormality is detected and judged from the discharge pressure and the intake pressure during engine operation, and it is displayed on the failure content display panel and the buzzer warns, so the driver can check the abnormality and respond.
【０００９】[0009]
【実施例】以下、図面を参照して、本発明の実施例を説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１において、エンジン７には熱交換器６
が設けられている。In FIG. 1, the engine 7 includes a heat exchanger 6
Is provided.
【００１１】また、その熱交換器６は海水ポンプ１１の
吐出側回路４に連結され、その海水ポンプ１１の吸入側
回路２は船底に設けられたストレーナ１と連結されてい
る。The heat exchanger 6 is connected to the discharge side circuit 4 of the seawater pump 11, and the suction side circuit 2 of the seawater pump 11 is connected to the strainer 1 provided at the bottom of the ship.
【００１２】そして、前記熱交換器６は海水回路６ａで
排気管のウオータジャケット７ａを介して船外に排出さ
れるよう海水回路が設けられている。The heat exchanger 6 is provided with a seawater circuit so that the heat exchanger 6 is discharged to the outside of the ship via the water jacket 7a of the exhaust pipe in the seawater circuit 6a.
【００１３】また、前記吸入側回路２には吸入側圧力セ
ンサ３が設けられ、吐出側回路４には吐出側圧力センサ
５が設けられ、エンジン回転センサ１２と共に異常検出
警報装置８に電気回路で接続されている。Further, the suction side circuit 2 is provided with a suction side pressure sensor 3, the discharge side circuit 4 is provided with a discharge side pressure sensor 5, and an abnormality detection warning device 8 is provided with an electric circuit together with an engine rotation sensor 12. It is connected.
【００１４】図２は異常検出警報装置８のブロック図を
示し、回転センサ１２は任意公知の波形整形回路１５、
周波数／電圧変換回路（Ｆ／Ｖ変換回路）１６および演
算回路１７を介して、吐出側圧力センサ５と共に比較回
路１８および１９に接続され、その比較回路１８、１９
はそれぞれ故障内容表示盤２２に接続されている。FIG. 2 is a block diagram of the abnormality detection warning device 8, in which the rotation sensor 12 is an arbitrary known waveform shaping circuit 15,
Through the frequency / voltage conversion circuit (F / V conversion circuit) 16 and the arithmetic circuit 17, the discharge side pressure sensor 5 and the comparison circuits 18 and 19 are connected.
Are connected to the failure content display panel 22, respectively.
【００１５】また、吸入側圧力センサ３は上記と同様に
比較回路２０および２１を介してそれぞれ故障内容表示
盤２２に接続されている。Further, the suction side pressure sensor 3 is connected to the failure content display panel 22 via the comparison circuits 20 and 21, respectively, similarly to the above.
【００１６】そして、その故障内容表示板２２にはイン
ペラ故障ランプ２２ａ、サクショウン詰まりランプ２２
ｂ、吐出側つまりランプ２２ｃと正常ランプ２２ｄおよ
びブザー２３とが設けられている。The failure content display plate 22 has an impeller failure lamp 22a and a suction blockage lamp 22.
b, a discharge side, that is, a lamp 22c, a normal lamp 22d, and a buzzer 23 are provided.
【００１７】なお、ブザー２３は正常以外の場合点灯と
共に作動するよう接続されている。It should be noted that the buzzer 23 is connected so as to operate with lighting when it is not normal.
【００１８】図３はエンジン７の回転数と海水ポンプの
吐出圧および吸入圧との関係から海水ポンプ系統の故障
を判断するマップの例を示している。FIG. 3 shows an example of a map for judging a failure of the seawater pump system from the relationship between the number of revolutions of the engine 7 and the discharge pressure and suction pressure of the seawater pump.
【００１９】また、図４は、上記のマップの吐出圧と吸
入圧とから故障内容を判断するチャートの例を示してい
る。Further, FIG. 4 shows an example of a chart for judging a failure content from the discharge pressure and the suction pressure in the above map.
【００２０】したがって、回転センサ１２の信号を波形
整形回路１５で整形し、Ｆ／Ｖ変換して演算回路１７で
演算した回転数信号と吐出圧センサ５からの信号を比較
回路１８、１９で比較演算してマップのａ、ｂ、ｃいず
れのゾーンにはいるか判定する。Therefore, the signals of the rotation sensor 12 are shaped by the waveform shaping circuit 15, F / V converted, and the rotation speed signal calculated by the calculation circuit 17 and the signal from the discharge pressure sensor 5 are compared by the comparison circuits 18, 19. It is calculated to determine which zone a, b, or c of the map is in.
【００２１】次いで、吸入圧センサ３からの信号により
より同様にｄ、ｅ、ｆいずれのゾーンに入るか判定し、
表示盤に信号を送ると表示盤は図４の基準に基いて故障
内容を判定して表示板に表示すると共にブザーで警報す
る。Next, the signal from the suction pressure sensor 3 is used to determine which of the zones d, e and f to enter.
When a signal is sent to the display board, the display board judges the failure content based on the criteria of FIG. 4, displays it on the display board, and gives a buzzer alarm.
【００２２】[0022]
【発明の効果】本発明は、以上説明したように構成され
ているので、運転者は海水ポンプ用警報装置で故障と共
にその故障内容を知ることができ、ただちに対策できる
のでエンジンの焼付きを未然に防止することができ、安
全である。Since the present invention is constructed as described above, the driver can know the details of the failure together with the alarm device for the seawater pump, and can immediately take countermeasures to prevent seizure of the engine. Can be prevented and safe.
【図１】本発明の一実施例を示す海水ポンプ用警報装置
の全体構成図。FIG. 1 is an overall configuration diagram of a seawater pump alarm device according to an embodiment of the present invention.
【図２】図１の警報装置のブロック図。FIG. 2 is a block diagram of the alarm device of FIG.
【図３】図２のブロック図の比較回路の判断用のマップ
の例を示す図。FIG. 3 is a diagram showing an example of a map for determination of a comparison circuit in the block diagram of FIG.
【図４】マップに基き判断する基準の例を示すチャート
図。FIG. 4 is a chart diagram showing an example of criteria for judgment based on a map.
１…海水ストレーナ ２…海水ポンプ吸入管 ３…吸入圧センサ ４…海水ポンプ吐出管 ５…吐出圧センサ ６…熱交換器 ７…エンジン ８…異常検出警報装置 １０…船底 １１…海水ポンプ １２…エンジン回転センサ 1 ... Seawater strainer 2 ... Seawater pump suction pipe 3 ... Suction pressure sensor 4 ... Seawater pump discharge pipe 5 ... Discharge pressure sensor 6 ... Heat exchanger 7 ... Engine 8 ... Abnormality detection alarm device 10 ... Ship bottom 11 ... Seawater pump 12 ... Engine Rotation sensor
Claims (1)
水ポンプ系統において、その海水ポンプの入口および出
口に圧力を検出する圧力センサおよびエンジンの回転を
検出するエンジン回転センサとをそれぞれ設け、その圧
力センサからの信号と予め設けたエンジン回転数に対す
る圧力のマップとから海水ポンプ系統の異常を検出判断
し警報を発する故障内容表示盤を設けたことを特徴とす
る舶用エンジン海水ポンプ系統の異常検出警報装置。1. A seawater pump system for a marine engine using seawater as a cooling medium, wherein a pressure sensor for detecting pressure and an engine rotation sensor for detecting engine rotation are provided at the inlet and outlet of the seawater pump, respectively. Abnormality detection alarm for marine engine seawater pump system, which is equipped with a failure content display panel that detects and judges an abnormality in the seawater pump system from a signal from a sensor and a preset map of pressure against engine speed apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16529693A JPH0726953A (en) | 1993-07-05 | 1993-07-05 | Abnormal condition detecting alarm device in engine sea water pump system for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16529693A JPH0726953A (en) | 1993-07-05 | 1993-07-05 | Abnormal condition detecting alarm device in engine sea water pump system for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0726953A true JPH0726953A (en) | 1995-01-27 |
Family
ID=15809639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16529693A Pending JPH0726953A (en) | 1993-07-05 | 1993-07-05 | Abnormal condition detecting alarm device in engine sea water pump system for ship |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726953A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6272923B1 (en) | 1998-09-15 | 2001-08-14 | Pierburg Aktiengesellschaft | Determining fill level of engine cooling system |
| JP2021148101A (en) * | 2020-03-23 | 2021-09-27 | いすゞ自動車株式会社 | Detection device and detection method |
| CN113685260A (en) * | 2021-09-07 | 2021-11-23 | 上海华兴数字科技有限公司 | Cooling system fault diagnosis method and device and working machine |
-
1993
- 1993-07-05 JP JP16529693A patent/JPH0726953A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6272923B1 (en) | 1998-09-15 | 2001-08-14 | Pierburg Aktiengesellschaft | Determining fill level of engine cooling system |
| JP2021148101A (en) * | 2020-03-23 | 2021-09-27 | いすゞ自動車株式会社 | Detection device and detection method |
| WO2021193431A1 (en) * | 2020-03-23 | 2021-09-30 | いすゞ自動車株式会社 | Detection device and detection method |
| CN113685260A (en) * | 2021-09-07 | 2021-11-23 | 上海华兴数字科技有限公司 | Cooling system fault diagnosis method and device and working machine |
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