KR200330503Y1 - water ingress alarm device for vessel - Google Patents

Abstract

The present invention is a sensor (Sensor) for detecting the inundation in the cargo hold, cargo barrier (Cargo Barrier) and protector (Protector) to protect the sensor, and IS Barrier for converting the signal to detect the inundation in the detection unit (Transformer-Isolated Barrier), the main control panel for supplying power to the IS barrier and receiving a signal converted from the IS barrier to generate an audible alarm, and the water submerged in connection with the IS barrier Variable resistance and switching switch to determine whether the type is fresh water or seawater, an automatic return switch electrically connected to the IS barrier and detecting the earth of the sensing unit and the device of the present invention described above We propose a submerged alarm system consisting of a functional test button to determine whether or not.

Description

Water ingress alarm device for vessel

The present invention relates to a ship inundation warning device, and more particularly to a ship inundation warning device and method for generating audible audible alarm by detecting the water level during the inundation in the cargo carrier and other tanks of the bulk carrier (Bulk Carrier) .

The ship flooding warning device according to the prior art, as shown in Figure 9a to 9c by installing a filter in the inlet path of the water to prevent the intrusion of foreign matter to prevent the detection unit is contaminated.

However, such means can detect the flooding without difficulty if it is only caused by the infiltration of clean water, but it is not known whether the type of flooded water is fresh or seawater, but it is also loaded into the cargo hold or cargo (grain, coal, iron ore, Cement, sulfur, phosphate, etc.) (hereinafter referred to as "cargo") there is a problem that can not be smoothly detected if the detection unit is contaminated by the contamination of the entire cargo and water mixed with the cargo.

It can be seen that the causes of contamination of the detection unit are as follows.

First, the detection part may be contaminated due to repeated accumulation of salt components of the seawater used to clean the cargo hold or the ballast filling the cargo hold toward the ship.

Second, there is a case that the detector is contaminated by water penetrated with the cargo when the cargo is loaded. In other words, coal and iron ore are generally loaded into the cargo hold while water is infiltrated, which is inevitable because they may be artificially sprayed with water to prevent dust from scattering or they may be infiltrated during cargo loading. . In this case, the biggest problem is that even if a filter is installed at the inlet of the water, it is impossible to prevent the infiltration of fine contaminants, and if a dense filter is used to prevent the infiltration of fine contaminants, the water may reach the detection part due to the blockage of the filter. If you can not seal. If there is no cargo, it can be disassembled and cleaned, but if the cargo is full, the detector is not accessible and cannot be cleaned.

Third, the detector can be contaminated by grain or other suspended matter. This case can be solved to some extent by a screen or a filter installed at the water inlet, but this also often causes the detection unit to be contaminated by the above-mentioned matters.

Accordingly, an object of the present invention is to solve the problems described above, and to provide a marine inundation warning device and method that can distinguish whether the type of water submerged into the cargo hold is fresh water or seawater, and can prevent contamination of the sensing unit. .

Another object of the present invention is to provide a ship flooding alarm device and method for detecting audible audible alarm by detecting the water level when flooding in the cargo carrier and other tanks of the bulk carrier (Bulk Carrier).

The present invention for achieving the object as described above, solves the distinction between the type of submerged water is fresh water or seawater electrically solved, and also the contamination of the sensing unit is to improve the structure of the sensing unit to prevent the technical idea It features.

1 is a view showing the overall configuration of the ship flooding alarm device according to an embodiment of the present invention.

FIG. 2 is a view showing an electric circuit of the flooding alarm device shown in FIG.

FIG. 3 is a diagram illustrating an electric circuit of an inundation warning device having a different configuration of the I.S barrier shown in FIG. 2.

Figures 4a and 4b is a view showing a state installed in the cargo hold bulkhead vertically installed the detector and the cargo barrier and protector shown in FIG.

FIG. 5 is a diagram illustrating a detailed configuration of the sensing unit illustrated in FIGS. 4A and 4B.

FIG. 6 is a view showing a detailed configuration of a cargo barrier shown in FIGS. 4A and 4B.

FIG. 7 is a view showing a state in which the sensing unit and the cargo barrier and the protector illustrated in FIG. 2 are installed in an inclined cargo hold bulkhead.

8 is a view showing the detailed configuration and installation of the detector and cargo barrier and protector shown in FIG.

9a to 9c is a view showing the configuration and installation state of the detection unit and the detection unit protection device in the ship flooding alarm system according to the prior art.

<Explanation of symbols for the main parts of the drawings>

10: main control unit 12: I.S barrier

14: detector 16: cargo barrier

18: Protector 20: Secondary sensor

22: primary sensor 24: common sensor

26: variable resistor 28: switching switch

30: Function test button 32: Auto return switch

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. However, the preferred embodiments of the present invention described below are not intended to limit the technical scope of the present invention, but are intended to explain the present invention more clearly and easily to those skilled in the art. Like reference numerals in the drawings refer to like elements.

First of all, the concept of a ship inundation warning device proposed by the present invention, a sensor (Sensor) for detecting the inundation in the cargo hold, cargo barrier (Cargo Barrier) and protector (Protector) to protect the detection unit, and the detection IS Control (Isolator Barrier) for converting the signal detected by the submerged, and the main control (Power Control) to supply the power to the IS Barrier and receive a signal converted from the IS Barrier to generate an audible alarm Panel), a variable resistor and a switching switch connected to the IS barrier to determine whether the type of the submerged water is fresh water or seawater, and an automatic sensor electrically connected to the IS barrier and detecting the earth of the sensing unit. Flood alarm consisting of a return switch and a functional test button to determine whether the device of the present invention is fully operational To propose value.

According to the embodiment of the present invention, the configuration of the ship flooding warning device proposed above is as shown in FIGS. 1 to 3. Referring to the drawings, the device to be implemented in the present invention is the main control panel 10 and the IS barrier 12, the sensing unit 14 and the variable resistor 26, the switching switch 28, the function test button 30 ), And an automatic return switch (32).

That is, the above-described immersion alarm device is the common sensor 24 and the primary sensor 22 of the detection unit 14 is connected to each other by water, preferably when the cargo window is flooded and the water rises the common sensor ( 24 and the primary sensor 22 are turned on to generate a primary alarm. When the water rises up to the secondary sensor 20 and the common sensor 24 and the secondary sensor 20 are connected, the secondary alarm is generated. Configured to occur. On the other hand, the common sensor 24 can be installed in any place, regardless of the installation place, and the number is not limited. That is, at least one common sensor 24 may be installed regardless of the installation place.

At this time, in the normal state in which the cargo hold is not flooded, A and C of the IS barrier 12 are connected (hereinafter referred to as "ON"), and B and D are separated (hereinafter referred to as "OFF"). )have.

However, when the common sensor 24 and the primary sensor 22 are connected to each other due to water or some cause, terminal 1 of the I.S barrier 12 is connected to 1C1 of the terminal block 31. The 1C1 is connected to the common sensor 24, and the common sensor 24 is connected to the primary sensor 22 by water, so that the primary sensor 22 is connected to 1C6 of the terminal block 31. The electrical circuit is constructed in order of the variable resistor 26 or the switching switch 28 and the terminal 6 of the IS barrier 12. Accordingly, the IS barrier 12 is operated so that the contact C of the IS barrier 12 is turned off, and D is turned on so that the opposite signal of the normal state is transmitted through terminals 10, 11, and 12 of the IS barrier 12. To 10.

In this way, the main control unit 10 generates an audible alarm to indicate that the water has risen up to the primary sensor 22, and when the water has risen up to the secondary sensor 20, the circuit is connected to the IS barrier 12. Terminal 1 → 1C1 of terminal block 31 → common sensor 24 → water → secondary sensor 20 → 1C3 of terminal block 31 → variable resistor 26 or switching switch 28 → of IS barrier 12 An electrical circuit is constructed from terminal 3 so that the IS barrier 12 is operated so that contact A is turned off and B is turned on so that a reverse signal of a normal state is transmitted through terminals 7, 8 and 9 of the IS barrier 12 to the main controller 10. To pass).

This will generate an audible alarm to indicate that the water up to the secondary sensor 20 has risen. The I.S barrier 12 is supplied with power through terminals 14 and 15.

Meanwhile, the functions of the I.S barrier shown in FIG. 2 and the I.S barrier shown in FIG. 3 are similar, and only the I.S barrier shown in FIG. 2 may be considered as a combination of two I.S barriers shown in FIG.

Hereinafter, a method of distinguishing whether water entering a cargo hold is fresh water or seawater using the immersion alarm device of the present invention configured as described above will be described in detail with reference to FIGS. 2 and 3 as follows.

First, the resistance of freshwater itself is 2000 ~ 5000Ω and the resistance of seawater itself is 200 ~ 400Ω, so the freshwater and seawater have a significant difference in resistance.

With this in mind, in the present invention, as shown in Figs. 2 and 3, the variable resistor 26 is inserted into the electrical circuit, that is, in the IS barrier 12, and the switch is switched in parallel to the variable resistor 26. (28) is connected, and the variable resistor 26 is adjusted to set at about 4000 kΩ. Subsequently, the operating limit resistance of the IS barrier 12 is preferably operated due to the contact between the common sensor 24, the primary sensor 22, and the secondary sensor 20. Is set to 5500 ms.

When the changeover switch 28 is turned off (blocked state), the above-described circuit configuration is the primary sensor 22 → 1C6 of the terminal block 31 → variable resistor 26 → terminal 6 of the IS barrier 12. The resistance applied to the circuit is about 4300Ω (set variable resistance 4000Ω + seawater resistance 300Ω) for seawater and about 7500Ω (set variable resistance 4000Ω + freshwater resistance 3500Ω) for fresh water. The IS barrier 12 operates, but the IS barrier 12 does not operate when the fresh water is out of the operating limit resistance value of 5500 Ω of the IS barrier 12.

However, when the changeover switch 28 is turned on (connected state), since the variable resistance 4000 Ω is ignored, the fresh water resistance 2000 to 5000 Ω is within the operating limit resistance value 5500 Ω of the IS barrier 12, so that the IS barrier 12 Works.

Second, referring to FIGS. 2 to 5, a method of checking whether or not the sensing unit 14 is caused by the contamination of the primary sensor 22 and the secondary sensor 20 and other causes is examined. In detail, it is as follows.

No matter how much the operator removes the cause of contamination of the detector 14, it will not be 100% prevented. Therefore, in addition to directly inspecting the ground due to contamination of the sensing unit 14 in the field, it is necessary to simply inspect remotely.

That is, only the common sensor 24 itself is submerged or contaminated with the sensor 50 and the insulator 40 shown in FIG. 5 due to contamination, or if the sensor 50 and the hull are grounded for other reasons, the primary sensor ( 22) and the secondary sensor 20 are not submerged or earthed in the hull, no alarm is generated.

Therefore, in the present invention, the automatic return switch 32 is parallel to the circuit of the present invention, as shown in FIG. 2, in order to know whether the primary sensor 22 and the secondary sensor 20 are earthed with the hull. Inserted.

If the above-described primary sensor 22 or secondary sensor 20 is grounded on the hull when the automatic return switch 32 is set in the direction of “EARTH CHECK” shown in FIG. 2, the circuit configuration is an IS barrier 12. → Terminal 1 → Line 1 → Terminal a of automatic return switch 32 → Common terminal c → E of terminal block 31 → Hull → Primary sensor 22 or Secondary sensor 20 → 1C3 or 1C6 of terminal block 31 → variable resistor 26 or changeover switch 28 → terminal 3 or 6 of IS barrier 12 to generate an alarm.

At this time, if both positions (that is, the primary sensor 22 and the secondary sensor 20) are grounded, both places generate an alarm, and if one position is earthed, only the corresponding part of the earth will generate an alarm. If it is not earthed, the circuit will be disconnected from the hull part of the circuit and will not generate an alarm.

On the other hand, if the above-mentioned automatic return switch 32 in the "MANU PRE-DETECTING" direction shown in Figure 2, it is literally manually operated to check whether the common sensor 24 is in contact with water or earth. Can be.

At this time, the circuit configuration includes terminal 1 of the IS barrier 12 → 1C1 of the terminal block 31 → common sensor 24 → water → hull → E of the terminal block 31 → terminal c of the automatic return switch 32 → automatic return. The terminal b of the switch 32 → Line 3 → the variable resistor 26 or the switching switch 28 → the terminal 6 of the IS barrier 12 generates an alarm. Similarly, if the common sensor 24 is not in contact with water or earthed, no alarm is generated.

Third, the following describes a method for determining whether the immersion alarm system of the present invention works perfectly.

First, when the function test button 30 shown in FIG. 2 is pressed, the circuit configuration is performed without passing through the sensing unit 14, and the terminal 1 → line 1 → function test button 30 → line () of the IS barrier 12. Line 2 and Line 3 → variable resistor 26 or changeover switch 28 → terminals 3 and 6 of IS barrier 12 to generate an alarm.

Fourth, a method of fundamentally preventing (preventing) contamination of the sensing unit 14 in the flooding alarm device according to the present invention will be described in detail with reference to FIGS. 4 to 8.

First, as shown in Figures 4a, b to 6, the detection unit and the detection unit protection device of the present invention is a detection unit 14 consisting of a common sensor 24, the primary sensor 22 and the secondary sensor 20 ) Is a protector (protector cover) 18 to protect from physical impact and a cargo barrier (cargo barrier) (16) to protect the detector 14 from cargo.

The circumferential surface of the protector 18 drills a hole of about 20 Ø to free the inflow of water, and the holes of the side screen 58 and the lower screen 60 of the cargo barrier 16. Form about 5Ø.

In addition, the cargo barrier (16) to the barrier plate (Barrier Plate) 56 is installed to a certain height, about 200mm. In this case, the cargo or water is freely close to the cargo barrier 16, but the cargo is not a fluid in the cargo barrier 16, and as shown in FIG. 6, the diameter of the cargo barrier 16 is to some extent within the cargo barrier 16. The fine cargo within may enter, but not reach the detection unit 14 (ie, the common sensor 24, the primary sensor 22, and the secondary sensor 20).

However, if the cargo hold is submerged, the submerged water enters through the lower screen 60 of the cargo barrier 16 and air escapes through the front screen 58. At this time, if the cargo floats in water, it will penetrate the cargo barrier 16 to some extent, but as shown in FIG. 5, the foreign matter is caught secondly through the screen 54 and the filter 52, and the water and fine foreign matter. (Within 3Ø diameter) will gradually rise.

At this time, the slowly rising water and foreign matter is in contact with the sensor 50 to generate an alarm, but even if the water rises above the "surface" shown by the hatched in Figure 5, the air outlet 48 is locked to the surface of the air more Since it is not discharged abnormally, the filling of the water and the foreign matter is stopped at any position of the distance pipe 44 due to the back pressure of the air formed.

In this case, the insulator 40 can be freed from contamination by water or foreign matter, and thus can always be kept clean.

In other words, the sensor 50 described above is not electrically contacted with the inner wall of the distance pipe 44 in any case and does not earth the hull. In other words, even if there is no water due to contamination of the sensor 50, a false alarm may be prevented.

For reference, the back pressure of the air in the distance pipe 44 described above depends on the inner diameter and length of the pipe or the density of the air and the specific gravity of the water penetrated, but the inner diameter of the distance pipe 44 used in the present invention is 43 Ø and the length is long. When the insulator 40 and the sensor 50 are attached to 350 mm, the water rises up to about 190 mm inside the distance pipe 44 even when the water rises to 10 M in the cargo hold, so that the detector 14 is completely submerged. Contamination of the insulator 40 can be prevented even at water levels well above 2M. In this case, the length and diameter of the distance pipe 44 and the length of the insulator 40 may be changed according to the depth of the cargo hold.

Meanwhile, referring to FIG. 5 described above, the sensor 50 is assembled by screwing to the connector 46, and the connector 46 is assembled by screwing to the insulator 40. A cable is connected to the connector 46 inside the insulator 40. And the wire connected to the connector 46 is connected to the inside of the insulator 40 and the outside through the conduit 34, all of which are completely sealed. The insulator 40 is also fully assembled with the nip 38 and bushing 36, and the distance pipe 44 is fully assembled with the socket 42.

Fifth, the installation method of the sensor unit and the sensor unit (that is, the detection unit and the cargo barrier and protector) in the case where the installation place of the detection unit in the cargo hold is a stool type will be described in detail with reference to FIGS. 7 and 8. Is as follows.

As shown in FIG. 7, 8, the water inlet and the air outlet are provided with screens 100a and 100b having a diameter of about 5 Ø to prevent a large amount of cargo intrusion, and the screen 100b with a height of "A" as about 300 mm. To prevent the cargo entering through the screen to reach the screen 102 attached to the bottom of the filter 103, and the height of the "D" to about 300mm to prevent the main air discharge pipe 104 completely blocked from the cargo, Then, the height of "C" is about 265 mm so that the air outlet 107 is submerged in the water surface from the height of the water of the flange 106 or more to generate the back pressure of the air in the distance pipe 108.

In addition, the main air discharge pipe 104 has a connection pipe 110 is installed to connect the auxiliary air discharge pipe, and a cleaning pipe 114 is installed at the lower portion of the water inlet pipe 112 for cleaning. At this time, protectors (100c, 100d) were installed on the inclined cargo hold bulkhead to protect the screen (100a, 100b).

As described above, the ship flooding warning device and the method according to an embodiment of the present invention achieves many effects as follows.

First, the present invention not only solves the above-mentioned conventional problems at a time, but also distinguishes whether the type of water submerged into the cargo hold is fresh water or seawater, and also prevents contamination of the sensing unit.

Secondly, the present invention detects the water level during flooding in bulk carriers and other tanks, and generates an audible alarm to prevent safety accidents.

Thirdly, the present invention can inspect whether the sensing unit is Earth, and also has the advantage of manually checking whether the common sensor is in contact with water or earth.

Fourth, the present invention can determine whether the immersion alarm system is working perfectly, and also the same effect as described above can be achieved by installing the detector and the cargo barrier and protector in the cargo hold bulkhead installed inclined. There is an advantage.

Claims (7)

In ship flood warning device, A detection unit comprising a common sensor, a primary sensor, and a secondary sensor for detecting whether the cargo is flooded; A protector installed in the cargo hold to protect the detector from physical shocks and a cargo barrier to protect the detector from cargo; An I.S barrier for converting a signal detected by the sensing unit to detect the inundation; A main controller for supplying power to the I.S barrier and receiving an alarm signal converted by the I.S barrier to generate an alarm; And a variable resistor and a switching switch connected to the I.S barrier to determine whether the water introduced into the cargo hold is fresh water or seawater. The method of claim 1, And a function test button for determining whether the automatic return switch detects the earth of the detection unit and the operation of the device. The method according to claim 1 or 2, And setting the resistance value of the variable resistor within the operating limit resistance value of the I.S barrier, and setting the operating limit resistance value of the I.S barrier to 5500 to 6000 kV. The method according to claim 1 or 2, The automatic return switch is connected in parallel to the circuit of the device, and the automatic return switch is sensed in the "EARTH CHECK" or "MANU PRE-DETECTING" direction while detecting the earth state of the primary sensor and the secondary sensor and A ship immersion alarm system for detecting whether the common sensor is in contact with water or earth. The method according to claim 1 or 2, The cargo barrier is installed on the inner wall of the cargo hold and a screen having a plurality of holes is attached to the front and the bottom, respectively, and a blocking plate is installed on the front to prevent the cargo from reaching the respective sensor parts by the cargo barrier. Ship flood alarm device characterized in that. The method according to claim 1 or 2, The common sensor, the primary sensor and the secondary sensor, Holes are formed along the circumferential surface, and a bottom is provided with a filter with a screen, and an upper end of the filter is assembled with a distance pipe with an air outlet, and an insulator with a sensor is installed inside the distance pipe. And a water or foreign substance penetrating into the insulator by air back pressure in the distance pipe formed by sealing an upper end of the distance pipe. In the flood alarm device installed on the cargo hold bulkhead installed inclined, A water inlet tube and an air outlet tube are installed in an “L” shape, a screen is installed at an inlet of each tube, and a sensing unit is installed at an upper end of the water inlet tube; Holes are formed along the circumferential surface, and a bottom is provided with a filter with a screen, and an upper end of the filter is assembled with a distance pipe with an air outlet, and a sensing part with an insulator attached with a sensor is installed inside the distance pipe. Equipped; And a water or foreign substance penetrating into the insulator by air back pressure in the distance pipe formed by sealing an upper end of the distance pipe.