JP4064840B2

JP4064840B2 - Inundation alarm device

Info

Publication number: JP4064840B2
Application number: JP2003042722A
Authority: JP
Inventors: 之彦石川
Original assignee: 株式会社工技研究所
Priority date: 2003-02-20
Filing date: 2003-02-20
Publication date: 2008-03-19
Anticipated expiration: 2023-02-20
Also published as: JP2004251770A

Description

【０００１】
【発明の属する技術分野】
本発明は、貨物船の貨物倉に所定水位以上に浸水した場合、警報を発して船の安全性を確保する船舶その他に適用可能な浸水警報装置に関する。
【０００２】
【従来の技術】
従来、主として海上貨物輸送を行うバルクキャリアと呼ばれる船種のばら積貨物船が多用されており、この種の貨物船には、図７に示す如く、船内に複数の独立した貨物倉Ａが並設され、それぞれの貨物倉Ａにはハッチカバーと呼ばれる大きな蓋Ｂで覆って海水などの浸入を防ぐようにしており、前記貨物倉Ａには浸水警報装置は設置されていなかった。
【０００３】
【発明が解決しようとする課題】
近年、嵐などにより従来の貨物船の貨物倉Ａを覆っている前記ハッチカバーＢの隙間から浸水し貨物船が沈没する事故が発生しており、これを問題にした国際海事機関ＩＭＯは、船の安全性を確保するために船倉内の水位を監視し、浸水した場合には警報を発する装置の設置を義務付けしようとしており、その設置の際の要求事項は次の４項目である、
▲１▼センサは防爆構造であること、
▲２▼船倉に積み込まれる貨物と接触しても破損しないような保護構造であること、
▲３▼点検が出来ること、
▲４▼貨物倉下部から約５００ｍｍの位置で浸水警報、約２０００ｍｍの位置で退船警報を出すこと。
【０００４】
本発明は、これらのＩＭＯの全要求事項に適合し、積荷があってもセンサ部の点検が可能な船舶用浸水警報装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
本発明は上記の目的を達成すべく、絶縁体ベースに所定の間隔を設けて少なくとも２本の電極体を垂設して水位を検出するセンサ手段と、前記電極体からの検出信号を受けて警報を発する警報手段と、前記電極体に接続して該センサ手段が正常に作動するか否かを前記警報手段により点検する点検手段とからなり、前記各電極体は外側の検出電極部と内側の点検電極部との二重電極構造とからなり、該検出電極部は有底の筒体に形成され、該筒体内に筒状の絶縁部材を介して棒状の前記点検電極部を挿入すると共に、前記検出電極部の底部内側部分と前記点検電極部の下端部分が接触し、前記警報手段の入力側の一方の端子に一方の前記電極体の検出電極部を接続すると共に前記入力側の他方の端子に他方の電極体の検出電極部を接続し、前記警報手段は両電極体間が液体を介して導通状態になったとき警報を発し、前記点検手段は開閉スイッチからなり、該開閉スイッチの一方の端子を一方の前記電極体の点検電極部に接続すると共に、該開閉スイッチの他方の端子を他方の前記電極体の点検電極部に接続した。
【０００６】
【発明の実施の形態】
本発明の第１の実施の形態を図１乃至図３により説明する。
【０００７】
１は本発明の第１の実施の形態である船舶用浸水警報装置を示し、該船舶用浸水警報装置１は水位を検出するためのセンサ手段２と、該センサ手段２からの検出信号を受けて警報を発する警報手段３と、前記センサ手段２に接続して該センサ手段２が正常に作動するか否かを点検するための点検手段４とからなる。
【０００８】
前記センサ手段２は一方の電極体２ａと他方の電極体２ｂと絶縁体ベース２ｃとからなり、これら両電極体２ａ、２ｂは前記絶縁体ベース２ｃに所定の間隔を設けて垂設している。
【０００９】
前記各電極体２ａ、２ｂは外側の検出電極部５と、内側の点検電極部６とからなり、該検出電極部５は有底の筒体に形成され、該筒体内に筒状の絶縁部材７を介して棒状の前記点検電極部６が挿入されていると共に該検出電極部５の底部内側部分５ｂと該点検電極部６の下端部分とが螺着などにより確実に接触しており、この接触部６ａ以外の個所では点検電極部６、検出電極部５とは絶縁部材７により絶縁した二重電極構造に形成されている。
【００１０】
尚、検出電極部５は金メッキ材、白金、ステンレス等の腐食に強い材質で形成した。
【００１１】
前記両電極体２ａ、２ｂは前記絶縁ベース２ｃを介してセンサ筐体部２ｄに装着され、該センサ筐体部２ｄの下方において両電極部２ａ、２ｂの水位検出部５ａ、５ａは電極カバー２ｅで覆われて保護され、該電極カバー２ｅには複数の水進入孔２ｆが開口されていると共に前記センサ筐体部２ｄの中央部前面開口には端子板などの点検用の前面蓋２ｇがパッキングなどにより取付けられ、更に該センサ筐体部２ｄの上部には導線を挿通する開口２ｈが形成されている。
【００１２】
前記警報手段３は、ブリッジ内などに設けたリレー装置３ａと警報ブザーなどの構成の警報装置であり、前記一方の電極体２ａの検出電極部５を該リレー装置３ａのプラス側電流端子３ｂに導線８ａを介して接続し、前記他方の電極体２ｂの検出電極部５をマイナス側電流端子３ｃに導線８ｂを介して接続しており、もし所定の水位に浸水すると両電極体２ａ、２ｂ間は水を介して導通状態となり、前記リレー装置３ａを作動して警報を発し、該警報手段３は前記貨物倉Ａの下部から約５００ｍｍ位置で浸水警報を、又は約２０００ｍｍの位置で退船警報を発する様に設定している。
【００１３】
尚、リレー装置３ａを、例えば、本質安全な防爆構造のリレー装置で形成すれば、前記国際海事機関ＩＭＯのセンサは防爆構造であることの要求事項を容易に満たすことができる。
【００１４】
前記点検手段４は短絡用の開閉スイッチ４ａからなり、該点検スイッチ４ａの一方の端子４ｂを前記一方の電極体２ａの点検電極部６の上部６ｂに導線９ａを介して接続すると共に該点検スイッチ４ａの他方の端子４ｃを前記他方の電極体２ｂの点検電極部６の上部６ｂに導線９ｂを介して接続し、通常時は該開閉スイッチ４ａを開のＯＦＦ状態とし、点検時は該開閉スイッチ４ａは閉のＯＮにしてセンサ手段２の両電極体２ａ、２ｂ間を導通した短絡状態として該センサ手段２が正常か否かを点検し、正常ならば前記警報手段３より警報が発せられるようにした。
【００１５】
次に本発明の第１の実施の形態の使用方法を説明する。
【００１６】
図４に示す如く、前記貨物船の貨物倉Ａ内には、前記国際海事機関ＩＭＯよりの要求事項である浸水警報の第１水位位置Ｌ１と退船警報の第２水位位置Ｌ２にそれぞれセンサ手段２を配置しておき、該センサ手段２のセンサ筐体部２ｄからは貨物で破損しない様に導線を電線管で保護してブリッジ内の警報装置に接続しておき、又、前記水位位置Ｌ１、Ｌ２に配置した各センサ手段２は該警報装置の別々のリレー装置３ａに接続して浸水警報と退船警報とを各々発することを可能にし、又、点検スイッチ４ａも各センサ手段２に別々に接続している。
【００１７】
先ず、浸水監視時には点検スイッチ４ａをＯＦＦとしておき、もし貨物船の貨物倉Ａに嵐などにより浸水して水位が上がってＬ１に至り、センサ手段である両電極体２ａ、２ｂの各水位検出部５ａ、５ａが共に水に浸かったときは、リレー装置３ａのプラス端子３ｂから電流は検出導線８ａを通り、一方の電極体２ａの検出電極部５の上部端子５ｃから水位検出部５ａを通り、該水位検出部５ａから水中を経て他方の電極体２ｂの水位検出部５ａに流れ、その上部端子５ｃから検出導線８ｂを通ってリレー装置３ａのマイナス端子３ｃの順路で流れて、該リレー装置３ａを駆動し、警報装置から浸水の警報を発する。
【００１８】
更に水位が上ってＬ２に至るとＬ２の個所のセンサ手段２と警報手段３とにおいて前述と同様の作動により退船の警報を発する。
【００１９】
次に、点検方法を説明するとセンサ手段である両電極部２ａ、２ｂの各水位検出部５ａ、５ａが水中にない状態、即ち、貨物倉Ａ内部に水が無い正常な状態において定期的に点検手段４である点検スイッチ４ａを押してＯＮの状態にすると、リレー装置３ａのプラス端子３ｂから電流は、検出導線８ａを通り、一方の電極体２ａの検出電極部５の上部端子５ｃから水位検出部５ａの内部の底部内側部分５ｂと唯一の電気的な接続部である点検電極部６の接触部６ａを経て該点検電極部６の上部６ｂを通り、点検導線９ａを通って、ＯＮ状態の点検スイッチ４ａを経て点検導線９ｂを通り、他方の電極体２ｂの点検電極部６の上部６ｂから接触部６ａを通り、該接触部６ａと唯一の電気的な接続部である他方の検出電極部５の底部内側部分５ｂを経てその外側の水位検出部５ａから上部端子５ｃを通り、検出導線８ｂからリレー装置３ａのマイナス端子３ｃに流れて、該リレー装置３ａを駆動し、警報を発して、貨物船Ａ内の積荷に関係なく船のブリッジなどにおいてセンサ手段２が正常に作動することを点検できると共に接続導線やシステム全体が正常に作動することが確認可能となる。
【００２０】
又、電極体２ａ、２ｂの実際の水位検出個所である水位検出部５ａが破損や腐蝕をしたり、上部端子５ｃなどの接続が断線したりした不具合があった場合は、点検スイッチ４ａを押しても電流が流れることが無いため、リレー装置３ａが動作することがなく、かくて貨物倉Ａ内に立ち入って点検することなくシステムが故障していることが判り、点検スイッチ４ａを設置した場所、例えば、船のブリッジ内でシステムの良否の点検が可能となる。
【００２１】
更に、センサ手段である両電極体２ａ、２ｂのいずれかの系統が故障しているかは、一方の電極体２ａの場合は検出導線８ａと点検導線９ａ間の導通を点検し、他方の電極体２ｂの場合は検出導線８ｂと点検導線９ｂ間の導通を点検することにより故障している系統を確認することが可能となるので点検が容易となる。
【００２２】
ここで、一般的な各種のフロートスイッチ式、圧力センサ式、電極式などのセンサ部の水位監視装置を船舶用浸水警報装置に転用する場合、最大の課題はＩＭＯから要求の点検方法を付加することにあり、ほとんどの装置はセンサ部を点検する時、貨物倉Ａ内に点検者が入って、フロートを上下させたり、擬似圧力を発生させたり、電極間を短絡させたりすることが必要となり、積荷があったりすると点検作業が困難となるが、前記の如く本発明の実施の形態である船舶用浸水警報装置においては電極式のセンサであっても、該電極体を水位を検出する検出電極部と点検のための点検電極部とで構成し、両電極部の電気的な接触部を１個所とすると共に点検経路と実際の水位の検出部分とを合致させる様に形成したことにより遠隔な場所でセンサを点検することが可能となり点検作業が容易となる。
【００２３】
次に本発明の第２の実施の形態を図５により説明する。
【００２４】
前記第１の実施の形態においては所定の第１水位位置Ｌ１と第２水位位置Ｌ２に各々センサ手段２を配置したが、本第２の実施の形態の船舶用浸水警報装置１１はセンサ手段１２のみ異なり、警報手段３及び点検手段４は前記第１の実施の形態と同様であり、該センサ手段１２は長尺の第１水位電極体１２ａと短尺の第２水位電極体１２ｂと長尺の共通電極体１２ｃとの３本の電極体からなり、該３本の電極体を絶縁体ベース１２ｄに所定の間隔を設けて垂設しており、各電極体１２ａ、１２ｂ、１２ｃは、前記第１の実施の形態と同様に、一個所の接触部１５ａで接続した二重電極構造の検出電極部１５と点検電極部１６及び筒状の絶縁部材１７とからなる。
【００２５】
使用時は図６に示す如く、貨物倉Ａ内にセンサ手段１２を設置し、水位が第１水位位置Ｌ１に来た時第１水位電極体１２ａと共通電極体１２ｃとの間に水を介して電流が流れる状態となり、警報手段３により浸水警報を発し、又、水位が第２水位位置Ｌ２まで上昇したら第２水位電極体１２ｂと共通電極体１２ｃとの間に水を介して電流が流れる状態となり、退船警報を発する。
【００２６】
尚、これら電極体１２ａ、１２ｂ、１２ｃについても貨物と接触して破損しない様に丈夫な保護部材で覆っている。
【００２７】
点検時には、貨物倉Ａに点検者が立ち入ることなく、前記第１の実施の形態と同様に船のブリッジなどにおいてシステムが正常に作動するか否かを確認することができる。
【００２８】
【発明の効果】
このように本発明によると、船倉内の水位を検出するセンサ手段の電極体を検出電極部と点検電極部とを１個所の接触部で接続した二重電極構造に形成し、水位を検出する検出個所と点検のための接触部とを合致する様に形成したので、実際のセンサ個所である水位検出部が破損などしたとき確実に点検でき、又、船倉内に積荷が積載した状態であっても立ち入ることなく、システムの良否を確認できて点検作業を容易にする効果を有する。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態のシステム接続図である。
【図２】センサ手段の一部截断の正面図である。
【図３】センサ手段の側面断面図である。
【図４】船倉内のセンサ手段の配置説明図である。
【図５】本発明の第２の実施の形態のセンサ手段の説明図である。
【図６】船倉内のセンサ手段の配置の説明図である。
【図７】従来の貨物船の断面説明図である。
【符号の説明】
１船舶用浸水警報装置
２センサ手段
２ａ一方の電極体
２ｂ他方の電極体
２ｃ絶縁体ベース
３警報手段
３ａリレー装置
４点検手段
４ａ点検スイッチ
５検出電極部
６点検電極部
７絶縁部材
８、９導線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inundation alarm device applicable to a ship or the like that issues an alarm to ensure the safety of a ship when the cargo hold of a cargo ship is flooded above a predetermined water level.
[0002]
[Prior art]
Conventionally, a bulk carrier called a bulk carrier mainly carrying sea freight has been widely used. In this type of cargo ship, as shown in FIG. 7, a plurality of independent cargo holds A are arranged in parallel. Each cargo hold A is covered with a large lid B called a hatch cover to prevent intrusion of seawater and the like, and no inundation alarm device is installed in the cargo hold A.
[0003]
[Problems to be solved by the invention]
In recent years, there has been an accident in which a cargo ship sinks due to inundation from the gap of the hatch cover B that covers the cargo hold A of a conventional cargo ship due to a storm, etc. In order to ensure the safety of the ship, the water level in the hold is monitored, and if it is submerged, it is required to install a device that issues an alarm. The following four items are required for the installation.
(1) The sensor has an explosion-proof structure.
(2) A protective structure that will not break even if it comes into contact with cargo loaded into the hold.
▲ 3 ▼ Inspection is possible,
(4) Issue an inundation warning at a position about 500mm from the bottom of the cargo hold and an exit warning at a position about 2000mm.
[0004]
It is an object of the present invention to provide a marine inundation warning device that conforms to all the requirements of these IMOs and can inspect the sensor section even when there is a load.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a sensor means for detecting a water level by suspending at least two electrode bodies at predetermined intervals on an insulator base, and receiving a detection signal from the electrode body. Alarm means for issuing an alarm, and inspection means connected to the electrode body and inspecting whether the sensor means operates normally by the alarm means, and each electrode body has an outer detection electrode portion and an inner side The detection electrode portion is formed in a bottomed cylindrical body, and the rod-shaped inspection electrode portion is inserted into the cylindrical body via a cylindrical insulating member. The bottom inner part of the detection electrode part and the lower end part of the inspection electrode part are in contact with each other, and the detection electrode part of one of the electrode bodies is connected to one terminal on the input side of the alarm means and the other on the input side Connect the detection electrode part of the other electrode body to the terminal of The alarm means issues an alarm when both electrode bodies are in a conductive state via liquid, and the inspection means comprises an open / close switch, and one terminal of the open / close switch is connected to the inspection electrode portion of one of the electrode bodies In addition, the other terminal of the open / close switch was connected to the inspection electrode portion of the other electrode body.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS.
[0007]
Reference numeral 1 denotes a marine inundation alarm device according to a first embodiment of the present invention. The marine inundation alarm device 1 receives sensor means 2 for detecting a water level and a detection signal from the sensor means 2. Alarm means 3 for issuing an alarm and inspection means 4 connected to the sensor means 2 for checking whether or not the sensor means 2 operates normally.
[0008]
The sensor means 2 comprises one electrode body 2a, the other electrode body 2b, and an insulator base 2c. Both electrode bodies 2a and 2b are suspended from the insulator base 2c at a predetermined interval. .
[0009]
Each of the electrode bodies 2a and 2b includes an outer detection electrode portion 5 and an inner inspection electrode portion 6. The detection electrode portion 5 is formed in a bottomed cylindrical body, and a cylindrical insulating member is formed in the cylindrical body. The rod-shaped inspection electrode portion 6 is inserted through 7 and the bottom inner portion 5b of the detection electrode portion 5 and the lower end portion of the inspection electrode portion 6 are securely in contact with each other by screwing or the like. At locations other than the contact portion 6a, the inspection electrode portion 6 and the detection electrode portion 5 are formed in a double electrode structure insulated by an insulating member 7.
[0010]
The detection electrode portion 5 was formed of a corrosion resistant material such as a gold plating material, platinum or stainless steel.
[0011]
The two electrode bodies 2a and 2b are attached to the sensor housing portion 2d via the insulating base 2c, and the water level detecting portions 5a and 5a of the two electrode portions 2a and 2b are disposed below the sensor housing portion 2d. The electrode cover 2e is provided with a plurality of water entry holes 2f, and a front cover 2g for inspection such as a terminal plate is packed in the front opening of the center portion of the sensor casing 2d. Further, an opening 2h through which a conducting wire is inserted is formed in the upper part of the sensor casing 2d.
[0012]
The alarm means 3 is an alarm device having a configuration such as a relay device 3a provided in a bridge or the like and an alarm buzzer, and the detection electrode portion 5 of the one electrode body 2a is connected to the positive current terminal 3b of the relay device 3a. Connected via a conductor 8a, and the detection electrode portion 5 of the other electrode body 2b is connected to a negative current terminal 3c via a conductor 8b, and if immersed in a predetermined water level, between both electrode bodies 2a and 2b Is in a conductive state through water, and operates the relay device 3a to issue an alarm, and the alarm means 3 gives an inundation alarm at a position of about 500 mm from the lower part of the cargo hold A or an exit warning at a position of about 2000 mm. Is set to emit.
[0013]
Note that if the relay device 3a is formed of, for example, an intrinsically safe explosion-proof relay device, the sensor of the international maritime organization IMO can easily satisfy the requirement for an explosion-proof structure.
[0014]
The inspection means 4 comprises an open / close switch 4a for short-circuiting, and one terminal 4b of the inspection switch 4a is connected to an upper part 6b of the inspection electrode portion 6 of the one electrode body 2a through a conductor 9a and the inspection switch 4a. The other terminal 4c of 4a is connected to the upper part 6b of the inspection electrode portion 6 of the other electrode body 2b via a conductor 9b, and the opening / closing switch 4a is normally opened and the opening / closing switch is opened during inspection. 4a is closed and turned on, and the two electrode bodies 2a and 2b of the sensor means 2 are brought into a short-circuit state to check whether the sensor means 2 is normal. If it is normal, the alarm means 3 issues an alarm. I made it.
[0015]
Next, a method of using the first embodiment of the present invention will be described.
[0016]
As shown in FIG. 4, in the cargo hold A of the cargo ship, there are sensor means for the first water level position L1 of the inundation alarm and the second water level position L2 of the ship leaving alarm, which are requirements from the International Maritime Organization IMO. 2 is arranged, the conductor is protected from the sensor casing 2d of the sensor means 2 with a conduit so as not to be damaged by cargo, and connected to the alarm device in the bridge, and the water level position L1 , Each sensor means 2 arranged at L2 can be connected to a separate relay device 3a of the alarm device to issue a flooding alarm and a ship leaving alarm, respectively, and a check switch 4a is also provided for each sensor means 2 separately. Connected to.
[0017]
First, the inspection switch 4a is turned off at the time of inundation monitoring. If the cargo hold A of the cargo ship is submerged by a storm or the like, the water level rises to L1, and each water level detection unit of both electrode bodies 2a and 2b as sensor means When both 5a and 5a are immersed in water, the current passes from the positive terminal 3b of the relay device 3a through the detection conductor 8a, and passes through the water level detection unit 5a from the upper terminal 5c of the detection electrode unit 5 of the one electrode body 2a, The water level detection unit 5a flows through the water to the water level detection unit 5a of the other electrode body 2b, flows from the upper terminal 5c through the detection lead 8b, and flows through the forward path of the negative terminal 3c of the relay device 3a. , And issue a warning of flooding from the alarm device.
[0018]
Further, when the water level rises to L2, the sensor means 2 and the warning means 3 at the location L2 issue a warning of leaving the ship by the same operation as described above.
[0019]
Next, the inspection method will be described. Periodic inspection is performed in a state where the water level detection parts 5a and 5a of the two electrode parts 2a and 2b which are sensor means are not in water, that is, in a normal state in which there is no water inside the cargo hold A. When the inspection switch 4a which is means 4 is pressed to be in the ON state, the current from the positive terminal 3b of the relay device 3a passes through the detection conductor 8a and from the upper terminal 5c of the detection electrode portion 5 of one electrode body 2a to the water level detection portion. 5a through the contact portion 6a of the inspection electrode portion 6 which is the only electrical connection portion with the inner bottom portion 5b of the inside of the 5a, passes through the upper portion 6b of the inspection electrode portion 6 and passes through the inspection lead wire 9a. It passes through the inspection lead wire 9b through the switch 4a, passes through the contact portion 6a from the upper portion 6b of the inspection electrode portion 6 of the other electrode body 2b, and the other detection electrode portion 5 which is the only electrical connection portion with the contact portion 6a. Bottom part 5b After that, the water level detector 5a on the outside passes through the upper terminal 5c, flows from the detection lead 8b to the negative terminal 3c of the relay device 3a, drives the relay device 3a, issues an alarm, and loads the cargo in the cargo ship A. Regardless of whether it is possible to check that the sensor means 2 operates normally in a ship bridge or the like, it is possible to confirm that the connecting conductor and the entire system operate normally.
[0020]
If the water level detector 5a, which is the actual water level detection location of the electrode bodies 2a, 2b, is damaged or corroded, or if the connection of the upper terminal 5c is broken, the inspection switch 4a is pressed. Since the current does not flow, the relay device 3a does not operate, and it is found that the system has failed without entering and checking the cargo hold A. The place where the inspection switch 4a is installed, For example, the quality of the system can be checked in the bridge of the ship.
[0021]
Further, whether one of the two electrode bodies 2a and 2b as the sensor means is broken or not is checked. In the case of one electrode body 2a, the continuity between the detection conductor 8a and the inspection conductor 9a is inspected, and the other electrode body is inspected. In the case of 2b, since the faulty system can be confirmed by checking the continuity between the detection lead 8b and the check lead 9b, the check becomes easy.
[0022]
Here, when diverting the water level monitoring device of the sensor section such as various types of float switch type, pressure sensor type, electrode type, etc. to the inundation warning device for ships, the biggest issue is adding a method of inspection requested by IMO. In particular, when inspecting the sensor part of most devices, it is necessary for an inspector to enter cargo hold A to move the float up and down, generate pseudo pressure, and short-circuit the electrodes. In addition, in the marine inundation alarm device according to the embodiment of the present invention, as described above, even if it is an electrode type sensor, the electrode body is detected by detecting the water level. It is composed of an electrode part and an inspection electrode part for inspection, and the electrical contact part of both electrode parts is made into one place, and the inspection route and the actual water level detection part are made to coincide with each other. Se Inspection work it is possible to check the difference becomes easy.
[0023]
Next, a second embodiment of the present invention will be described with reference to FIG.
[0024]
In the first embodiment, the sensor means 2 is arranged at each of the predetermined first water level position L1 and second water level position L2. However, the marine inundation alarm device 11 according to the second embodiment is provided with sensor means 12. However, the alarm means 3 and the inspection means 4 are the same as those in the first embodiment, and the sensor means 12 includes a long first water level electrode body 12a, a short second water level electrode body 12b and a long length. The electrode body is composed of three electrode bodies with a common electrode body 12c, and the three electrode bodies are suspended from the insulator base 12d at a predetermined interval. The electrode bodies 12a, 12b, 12c As in the first embodiment, the detection electrode portion 15 has a double electrode structure connected by a single contact portion 15a, the inspection electrode portion 16, and a cylindrical insulating member 17.
[0025]
During use, as shown in FIG. 6, the sensor means 12 is installed in the cargo hold A, and when the water level reaches the first water level position L1, water is passed between the first water level electrode body 12a and the common electrode body 12c. When the water level is raised to the second water level position L2, the current flows through the water between the second water level electrode body 12b and the common electrode body 12c. It becomes a state and issues a wake-up warning.
[0026]
These electrode bodies 12a, 12b, and 12c are also covered with a strong protective member so as not to be damaged by contact with cargo.
[0027]
At the time of inspection, it is possible to confirm whether or not the system operates normally in a ship bridge or the like as in the first embodiment, without an inspector entering the cargo hold A.
[0028]
【The invention's effect】
Thus, according to the present invention, the electrode body of the sensor means for detecting the water level in the hold is formed in a double electrode structure in which the detection electrode portion and the inspection electrode portion are connected by one contact portion, and the water level is detected. The detection part and the contact part for inspection are formed so as to coincide with each other, so that when the water level detection part which is the actual sensor part is damaged, it can be inspected reliably, and the load is loaded in the hold. However, it is possible to confirm the quality of the system without entering, and to facilitate the inspection work.
[Brief description of the drawings]
FIG. 1 is a system connection diagram according to a first embodiment of this invention.
FIG. 2 is a front view of partial cutting of the sensor means.
FIG. 3 is a side sectional view of the sensor means.
FIG. 4 is an explanatory view of arrangement of sensor means in the hold.
FIG. 5 is an explanatory diagram of sensor means according to a second embodiment of the present invention.
FIG. 6 is an explanatory diagram of the arrangement of sensor means in the hold.
FIG. 7 is a cross-sectional explanatory view of a conventional cargo ship.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Marine inundation alarm device 2 Sensor means 2a One electrode body 2b The other electrode body 2c Insulator base 3 Alarm means 3a Relay apparatus 4 Inspection means 4a Inspection switch 5 Detection electrode part 6 Inspection electrode part 7 Insulating members 8, 9 Conductor

Claims

絶縁体ベースに所定の間隔を設けて少なくとも２本の電極体を垂設して水位を検出するセンサ手段と、前記電極体からの検出信号を受けて警報を発する警報手段と、前記電極体に接続して該センサ手段が正常に作動するか否かを前記警報手段により点検する点検手段とからなり、前記各電極体は外側の検出電極部と内側の点検電極部との二重電極構造とからなり、該検出電極部は有底の筒体に形成され、該筒体内に筒状の絶縁部材を介して棒状の前記点検電極部を挿入すると共に、前記検出電極部の底部内側部分と前記点検電極部の下端部分が接触し、前記警報手段の入力側の一方の端子に一方の前記電極体の検出電極部を接続すると共に前記入力側の他方の端子に他方の電極体の検出電極部を接続し、前記警報手段は両電極体間が液体を介して導通状態になったとき警報を発し、前記点検手段は開閉スイッチからなり、該開閉スイッチの一方の端子を一方の前記電極体の点検電極部に接続すると共に、該開閉スイッチの他方の端子を他方の前記電極体の点検電極部に接続した浸水警報装置。Sensor means for detecting a water level by suspending at least two electrode bodies at a predetermined interval on an insulator base, alarm means for receiving a detection signal from the electrode body, and alarming the electrode body connected Ri Do from the inspection means to inspect Ri by the said alarm means whether the sensor means operates normally, the double of the respective electrode body detection electrode of the outer and inner inspection electrode portion The detection electrode part is formed in a bottomed cylinder, and the rod-shaped inspection electrode part is inserted into the cylinder via a cylindrical insulating member, and the inside of the bottom of the detection electrode part And the lower end portion of the inspection electrode portion are in contact with each other, the detection electrode portion of one of the electrode bodies is connected to one terminal on the input side of the alarm means, and the other electrode body is connected to the other terminal on the input side The detection electrode unit is connected, and the alarm means uses a liquid between the electrode bodies. The inspection means comprises an on / off switch, and one terminal of the on / off switch is connected to the inspection electrode part of one of the electrode bodies, and the other terminal of the on / off switch is connected to the on / off switch. A flood alarm device connected to the inspection electrode part of the other electrode body .

前記警報手段は所定の第１水位で浸水警報を、第２水位で退船警報を発する請求項１に記載の浸水警報装置。 2. The inundation alarm device according to claim 1, wherein the alarm means issues an inundation alarm at a predetermined first water level, and issues an exit warning at a second water level .