Ships

Abstract

To provide a ship capable of properly suppressing diffusion of a toxic substance with a reduced cost.SOLUTION: A ship comprises a hull in which multiple rooms 8 are provided in respective multiple compartments A, a duct part 10 provided in each of the multiple compartments, and an inboard monitoring system 20 to monitor the inside of the hull. The duct part comprises multiple branch ducts 11 one end of which is connected to each of the multiple rooms in the compartment, a collected duct 12 connected to the other end of each of the multiple branch ducts, and a draft fan 15 provided in the collected duct and generating wind sucking air out of the multiple rooms through the multiple branch ducts. The inboard monitoring system comprises a detection unit 21 provided in the collected duct and detecting a toxic substance included in the air in the collected duct, and a monitoring device 60 having a control unit to halt operation of the draft fan in the collected duct with the detection unit provided, when it is detected that the toxic substance is included in the air in the collected duct based on a detected signal from the detection unit.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] This disclosure relates to ships.

Background Art

[0002] For example, Patent Document 1 discloses an automatic fire alarm system configured to branch a common duct, install a smoke exhaust fan and an air conditioner in each of the branched ducts, provide a damper at the branch point of the duct, and connect each of the smoke exhaust fan, the air conditioner, and the damper to a disaster prevention terminal device such as a fire detector. According to such a configuration, when a fire occurs, the damper is operated to connect the duct provided with the smoke exhaust fan to the common duct for smoke exhaust.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the configuration described in Patent Document 1, not only is it necessary to arrange disaster prevention terminal devices such as fire detectors in each room to which the duct is connected, but it is also necessary to connect these disaster prevention terminal devices to a control device for automatically operating the damper and the smoke exhaust fan when a fire occurs. Therefore, in a ship or the like having a large number of rooms, the installation cost of the system may become extremely high. In addition, in a ship, particularly when a plurality of rooms are arranged below the upper deck of the hull, when smoke is exhausted through a smoke exhaust duct during a fire, there is a risk that the smoke will spread to other rooms different from the room where the fire occurred or to sections where no fire has occurred through the smoke exhaust duct. In addition, not only during a fire, but also when a viral disease occurs in the ship or when a toxic gas is generated, for example, there is a risk that the virus or gas will spread to other sections through the smoke exhaust duct.

[0005] This disclosure is made to solve the above-mentioned problems and aims to provide a vessel that can appropriately suppress the diffusion of hazardous substances on board while reducing costs. [Means for solving the problem]

[0006] To solve the above problems, the vessel according to the present disclosure comprises a hull in which multiple rooms are arranged in each of multiple compartments, a duct section arranged in each of the multiple compartments, and an onboard monitoring system for monitoring the inside of the vessel, wherein the duct section comprises a plurality of branch ducts, one end of which is connected to each of the multiple rooms in the compartment, a manifold duct to which the other ends of the plurality of branch ducts are connected, and a ventilator arranged in the manifold duct that generates air to draw out air from the plurality of rooms through the plurality of branch ducts, and the onboard monitoring system comprises a detection unit arranged in the manifold duct that detects harmful substances contained in the air in the manifold duct, and a monitoring device having a control unit that, based on a detection signal from the detection unit, detects that the air in the manifold duct contains the harmful substances and stops the operation of the ventilator in the manifold duct where the detection unit is located. [Effects of the Invention]

[0007] According to the vessels described herein, it is possible to reduce costs while effectively controlling the spread of hazardous substances on board. [Brief explanation of the drawing]

[0008] [Figure 1] This is a side view showing the schematic configuration of a vessel according to the embodiment of this disclosure. [Figure 2] This is a schematic diagram showing the general configuration of the duct section located inside the hull of the above-mentioned vessel. [Figure 3] This diagram shows the configuration of the duct section and the onboard monitoring system. [Figure 4] This figure shows the hardware configuration of the control unit for the onboard monitoring system described above. [Figure 5] This is a functional block diagram of the control device described above. [Figure 6] This flowchart shows the procedure for controlling the wireless communication system in the control device described above. [Modes for carrying out the invention]

[0009] The following describes embodiments for implementing the vessel according to this disclosure with reference to the attached drawings. However, this disclosure is not limited to these embodiments. (Ship composition) As shown in Figure 1, the vessel 1 in the embodiment of this disclosure is, for example, a warship and comprises a hull 2, a duct section 10, and an onboard monitoring system 20 (see Figure 3).

[0010] The hull 2 ​​has a pair of side plates 3A and 3B that form its outer shell, a bottom 4, and an upper deck 5. The side plates 3A and 3B consist of a pair of side plates that form the left and right sides, respectively. The bottom 4 consists of a bottom plate that connects these side plates 3A and 3B. Together with these pair of side plates 3A and 3B and the bottom 4, the outer shell of the hull 2 ​​has a U-shape in a cross section perpendicular to the bow-stern direction FA. The upper deck 5 is a full-length deck that is exposed to the outside. A superstructure 7 containing living quarters is formed on the upper deck 5 of the hull 2.

[0011] As shown in Figures 2 and 3, the hull 2 ​​is equipped with multiple rooms 8. These multiple rooms 8 are located within the hull 2, including the superstructure 7. Each room 8, such as a crew or passenger quarters, dining room, lobby, stairwell, bathroom, and washroom, is separated from other rooms 8 by floor, ceiling, and walls. The multiple rooms 8 are arranged along a corridor 9. Each room 8 can communicate with the corridor 9 and other rooms 8 via doors (not shown), etc.

[0012] (Duct section configuration) The duct section 10 is provided for each of the multiple compartments A within the hull 2. The multiple rooms 8 within the hull 2 ​​are divided into multiple compartments A. As shown in Figure 3, each section A consists of, for example, a passageway 9 and a plurality of rooms 8 arranged along the passageway 9. The duct section 10 includes branch ducts 11, a main duct 12, and a ventilator 15.

[0013] The branch duct 11 has one end 11a connected to each of the multiple rooms 8 in each section A. The branch duct 11 is located in the ceiling space or elsewhere of each room 8. One end 11a of the branch duct 11 communicates with the interior of each room 8 through a ventilation opening (not shown) formed in the ceiling or elsewhere of each room 8. The other ends 11b of the multiple branch ducts 11 are each connected to the main duct 12. In the example shown in Figure 3, the other end 11b of the branch duct 11 is directly connected to the main duct 12. However, the branch duct 11 may also be connected to other branch ducts 11 to merge before being connected to the main duct 12. In each section A, multiple branch ducts 11 are ultimately connected to a single main duct 12. That is, each section A has one main duct 12, and multiple branch ducts 11 communicating with each room 8 are connected to this single main duct 12. In other words, each section A is defined by a single main duct 12.

[0014] Each section A's collective duct 12 is connected to the main duct 13. Multiple collective ducts 12 from multiple sections A are connected to the main duct 13. The main duct 13 is connected to the flue of the exhaust duct 9 provided in the hull 2. In addition, each section A's collective duct 12 may be connected to an air conditioning duct 14 which is connected to an air conditioner or the like located inside the hull 2.

[0015] The ventilators 15 are located within the collective duct 12 of each section A. The ventilators 15 generate airflow that draws air from the multiple rooms 8 located in section A through multiple branch ducts 11 from the collective duct 12. When the ventilators 15 are in operation, the air from the multiple rooms 8 located in section A is discharged through the branch ducts 11 and the collective duct 12 to the main duct 13 or the air conditioning duct 14.

[0016] The in-ship monitoring system 20 monitors a plurality of rooms 8 inside the hull 2. The in-ship monitoring system 20 is provided for monitoring the occurrence of abnormalities such as fires in the rooms 8 and the like inside the hull 2. The in-ship monitoring system 20 includes a detection unit 21, a camera 25, an alarm 27, a monitoring device 60, and a display device 80.

[0017] The detection unit 21 is disposed inside the collective duct 12. The detection unit 21 detects harmful substances contained in the air inside the collective duct 12. In the present embodiment, the harmful substances detected by the detection unit 21 are substances contained in, for example, the smoke generated by a fire. As the detection unit 21, a sensor that detects substances contained in smoke, a fire alarm such as a smoke detector, etc. can be used. As the detection unit 21, for example, it may be configured to detect the concentration of carbon monoxide. Also, the detection unit 21 may be configured to detect, for example, the oxygen concentration. In this case, when the oxygen concentration detected by the detection unit 21 drops below a threshold value, it can be determined that harmful substances contained in the smoke are generated. The detection unit 21 detects the presence or absence of harmful substances, the amount (concentration) of harmful substances, etc., and transmits a detection signal indicating the detection result to the monitoring device 60.

[0018] The camera 25 is installed in each room 8 to which one end 11a of the branch duct 11 is connected. The camera 25 photographs the interior of the room 8 with still images, moving images, etc. The camera 25 transmits the data of the photographed image (video) to the monitoring device 60.

[0019] The operation of the alarm 27 is controlled by the monitoring device 60. The alarm 27 is installed at appropriate locations inside the hull 2. The alarm 27 is arranged in the rooms 8, passageways 9, etc. within section A. The alarm 27 may be appropriately arranged throughout the hull 2. When the control unit 72 of the monitoring device 60 described later detects that the air inside the collective duct 12 contains harmful substances, the alarm 27 emits a predetermined alarm by sound, light, etc. based on a command from the control unit 72.

[0020] Furthermore, in each section A, rooms other than room 8 to which one end 11a of the branch duct 11 is connected, as well as corridors, etc., may be equipped with so-called fire alarms 29, etc.

[0021] (Hardware configuration diagram) As shown in Figure 4, the monitoring device 60 is a computer equipped with a CPU 61 (Central Processing Unit), ROM 62 (Read Only Memory), RAM 63 (Random Access Memory), HDD 64 (Hard Disk Drive), and a signal transmission / reception module 65.

[0022] (Functional block diagram) As shown in Figure 5, the CPU 61 of the monitoring device 60 executes a program that is pre-stored in the device, and the device has a signal input unit 71, a control unit 72, and an output unit 73. The monitoring device 60 monitors detection signals from all detection units 21 located in multiple compartments A within the ship's hull 2.

[0023] The signal input unit 71 is, in hardware terms, a signal transmission / reception module 65, which receives detection signals from each detection unit 21 and image data from the camera 25.

[0024] The control unit 72 detects whether or not harmful substances are present in the air inside the manifold duct 12 based on the detection signal from the detection unit 21. If the control unit 72 detects that harmful substances are present in the air inside the manifold duct 12, it stops the operation of the ventilator 15 in the manifold duct 12 where the detection unit 21 is located.

[0025] If the control unit 72 detects that harmful substances are present in the air within the collection duct 12, it activates the alarm 27 and sounds a predetermined alarm within the hull 2.

[0026] Furthermore, if the control unit 72 detects that harmful substances are present in the air within the collective duct 12, it causes the display device 80 to display image data from all cameras 25 located in the duct section 10 of that section A.

[0027] The output unit 73 is a signal transmission / reception module 65 in hardware terms, and transmits commands output from the control unit 72, such as a command to stop the operation of the ventilator 15, a command to activate the alarm 27, and image data to be displayed on the display device 80, to the ventilator 15, the alarm 27, and the display device 80.

[0028] The display device 80 displays images captured by each of the cameras 25 installed in multiple rooms 8. The display device 80, along with the monitoring device 60, is installed in a control center or similar location within the ship's hull 2.

[0029] (Processing procedure) As shown in Figure 6, the onboard monitoring method S10 in the onboard monitoring system 20 according to the embodiment of this disclosure includes the steps of: receiving a detection signal from a detection unit in step S11; determining whether or not a hazardous substance is present in step S12; stopping the operation of a ventilator in step S13; activating an alarm in step S14; and displaying an image from a camera in step S15. The monitoring device 60 repeatedly executes the processes from step S11 onward at predetermined time intervals. In the duct section 10 of each section A, the ventilator 15 is constantly operating under normal conditions, drawing out air from each room 8. The detection unit 21 located in the collective duct 12 in each section A detects the presence and concentration of harmful substances in the air flowing through the collective duct 12. The detection unit 21 transmits a detection signal indicating the detection result to the monitoring device 60 at predetermined minute intervals.

[0030] In step S11, where detection signals are received from the detection unit, the signal input unit 71 of the monitoring device 60 receives detection signals from all of the detection units 21 located in multiple compartments A within the hull 2.

[0031] In step S12, which determines whether or not harmful substances are present, the control unit 72 determines whether or not harmful substances are present in the air within the manifold duct 12 based on the detection signals from the detection unit 21. If no harmful substances are detected in the detection signals from all the detection units 21, the process ends. If smoke is generated in any of the rooms 8 due to a fire or the like, the detection unit 21 located in the manifold duct 12 connected to the branch duct 11 of the room 8 where the smoke was generated outputs a detection signal indicating that harmful substances are present. In this case, the control unit 72 determines that harmful substances are present in the air within the manifold duct 12 and proceeds to step S12.

[0032] In step S13, which involves stopping the operation of the ventilator, the control unit 72 identifies the section A where the detection unit 21, which detected the presence of harmful substances, is located. The control unit 72 outputs a command to stop the operation of the ventilator 15 in the collective duct 12 of the identified section A. The output command is transmitted from the output unit 73 to the ventilator 15. Upon receiving the command, the ventilator 15 stops its operation. This prevents the air from being drawn into the branch duct 11 from the rooms 8 where smoke was generated, through the duct section 10 to other rooms 8 and section A.

[0033] Next, in step S14, the control unit 72 activates the alarm 27, which emits a predetermined alarm within the hull 2. This notifies the crew and passengers inside the hull 2 ​​that a fire has broken out.

[0034] Next, in step S15, which involves displaying images from the cameras, the control unit 72 displays image data from all cameras 25 located in section A, where hazardous substances have been identified, on the display device 80. At the management center or other location where the display device 80 is installed, the person in charge can visually check the display on the display device 80 to confirm the status of smoke and fire in room 8. Steps S12 to S15 described above may be performed simultaneously and in parallel.

[0035] (Effects and Benefits) In the vessel 1 with the above configuration, a duct section 10 is located in a compartment A containing multiple rooms 8, and this section is equipped with multiple branch ducts 11, a main duct 12, and a ventilator 15. A detection unit 21 is located inside the main duct 12. When an event occurs in a room 8 that generates harmful substances, the generated harmful substances are sent to the main duct 12 via the branch ducts 11 along with the air from the room 8, and are detected by the detection unit 21. When the control unit 72 of the monitoring device 60 detects that the air in the main duct 12 contains harmful substances, it stops the operation of the ventilator 15 in the main duct 12 where the detection unit 21 is located. This prevents harmful substances generated in a room 8 within compartment A from spreading to other compartments A. In this way, the detection unit 21 provided in the main duct 12 can detect events that generate harmful substances occurring in multiple rooms 8 within compartment A. Therefore, it is not necessary to provide a detection unit 21 in each room 8. As a result, it is possible to reduce costs while effectively suppressing the diffusion of hazardous substances on the vessel 1.

[0036] Furthermore, if harmful substances are detected in the air within the collective duct 12, the images captured by each of the cameras 25 are displayed on the display device 80. This allows the conditions of each room 8 within section A to be checked using images captured by the cameras 25 located in each room 8 when an event occurs that generates harmful substances.

[0037] Furthermore, if harmful substances are detected in the air within the manifold duct 12, the alarm 27 will sound an alarm. This allows the crew and passengers inside the hull 2 ​​to be notified that an event has occurred that could generate harmful substances.

[0038] Furthermore, the detection unit 21 detects smoke generated during a fire as a hazardous substance. As a result, in the event of a fire, the detection unit 21 can detect the smoke generated as a hazardous substance, thereby stopping the operation of the ventilator 15 in the collective duct 12 where the detection unit 21 is located. This prevents smoke generated in room 8 within compartment A from spreading to other compartments A. In this way, the detection unit 21 provided in the collective duct 12 can detect events that generate smoke, i.e., fires, that occur in room 8 within compartment A. Therefore, there is no need to provide a detection unit 21 in each room 8. As a result, the spread of hazardous substances in the ship 1 can be appropriately suppressed while reducing costs.

[0039] (Other embodiments) Although embodiments of this disclosure have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments and may include design changes and the like that do not depart from the gist of this disclosure. In the above embodiment, the detection unit 21 is configured to detect substances contained in smoke in order to detect the occurrence of a fire, but it is not limited to this. The detection unit 21 may also be configured to detect harmful substances other than those contained in smoke, such as viruses that cause disease, predetermined types of gases, etc. Furthermore, the detection unit 21 may be equipped with multiple types of devices capable of detecting harmful substances such as substances contained in smoke, viruses, gases, etc. Furthermore, although the above embodiment described the processing procedure of the onboard monitoring method S10 in the onboard monitoring system 20, the procedure, processing content in each step, processing conditions, etc., are not limited in any way and can be changed as appropriate. Furthermore, there are no limitations whatsoever on the purpose, structure, size, etc., of the vessel 1.

[0040] <Note> The vessel 1 described in the embodiment can be understood, for example, as follows:

[0041] (1) The vessel 1 according to the first embodiment comprises a hull 2 ​​in which a plurality of rooms 8 are arranged in each of a plurality of compartments A, a duct section 10 arranged in each of the plurality of compartments A, and an onboard monitoring system 20 for monitoring the inside of the hull 2, wherein the duct section 10 comprises a plurality of branch ducts 11, each of the plurality of rooms 8 in the compartment A having one end 11a connected to it, a manifold duct 12 to which the other ends 11b of the plurality of branch ducts 11 are connected, and a manifold duct 12 arranged within the manifold duct 12 through the plurality of branch ducts 11 The shipboard monitoring system 20 includes a ventilator 15 that generates air to draw out air from multiple rooms 8, and the shipboard monitoring system 20 includes a detection unit 21 located in the collection duct 12 that detects harmful substances contained in the air in the collection duct 12, and a monitoring device 60 which has a control unit 72 that, based on a detection signal from the detection unit 21, detects that the air in the collection duct 12 contains the harmful substances and stops the operation of the ventilator 15 in the collection duct 12 where the detection unit 21 is located. Examples of harmful substances detected by the detection unit 21 include smoke, viruses, and gases generated during a fire.

[0042] This vessel 1 has multiple compartments A, each containing multiple rooms 8. Each compartment A is equipped with a duct section 10, which includes multiple branch ducts 11, a main duct 12, and a ventilator 15. One end 11a of each of the multiple branch ducts 11 is connected to each of the multiple rooms 8 in each compartment A. The other end 11b of each duct is connected to the main duct 12, which is equipped with a ventilator 15. By operating the ventilator 15, air is drawn out from the multiple rooms 8 in each compartment A and sent through the branch ducts 11 to the main duct 12. A detection unit 21 is located inside the main duct 12. If an event occurs in which a hazardous substance is generated in a room 8, the generated hazardous substance is sent along with the air from the room 8 through the branch ducts 11 to the main duct 12 and detected by the detection unit 21. The control unit 72 of the monitoring device 60 detects that harmful substances are present in the air within the manifold duct 12 and stops the operation of the ventilator 15 in the manifold duct 12 where the detection unit 21 is located. This prevents harmful substances generated in a room 8 within compartment A from spreading to other compartments A. In this way, the detection unit 21 provided in the manifold duct 12 can detect events that generate harmful substances occurring in multiple rooms 8 within compartment A. Therefore, it is not necessary to provide a detection unit 21 in each room 8. As a result, the diffusion of harmful substances in the ship 1 can be appropriately suppressed while reducing costs.

[0043] (2) The vessel 1 according to the second embodiment is the vessel 1 of (1), wherein the onboard monitoring system 20 further comprises cameras 25 installed in each of the rooms 8 to which one end 11a of the plurality of branch ducts 11 is connected, and which photograph the inside of the rooms 8, and the monitoring device 60 further comprises a display device 80 which displays images taken by each of the cameras 25 installed in the plurality of rooms 8, and when the control unit 72 detects that the air in the collective duct 12 contains the harmful substance, it causes the display device 80 to display images taken by each of the cameras 25 in the duct section 10 where the detection unit 21 is located.

[0044] As a result, if harmful substances are detected in the air within the collective duct 12, the detection unit 21 displays images captured by each of the cameras 25 in the duct section 10 on the display device 80. This allows the condition of each room 8 within section A to be confirmed by images captured by the cameras 25 located in each room 8 when an event occurs that generates harmful substances.

[0045] (3) The vessel 1 according to the third embodiment is the vessel 1 of (1) or (2), wherein the onboard monitoring system 20 further comprises an alarm 27 located inside the hull 2, which, when the control unit 72 detects that the air in the collection duct 12 contains the harmful substance based on a detection signal from the detection unit 21, issues an alarm.

[0046] This allows the alarm 27 to activate, thereby notifying the crew that an event has occurred that may generate harmful substances.

[0047] (4) The vessel 1 according to the fourth embodiment is any one of the vessels 1 from (1) to (3), wherein the detection unit 21 detects smoke generated when a fire occurs as a hazardous substance.

[0048] As a result, in the event of a fire, the detection unit 21 detects the smoke generated as a hazardous substance, thereby stopping the operation of the ventilator 15 in the collective duct 12 where the detection unit 21 is located. This prevents smoke generated in room 8 within compartment A from spreading to other compartments A. In this way, the detection unit 21 provided in the collective duct 12 can detect events that generate smoke, i.e., fires, that occur in room 8 within compartment A. Therefore, there is no need to provide a detection unit 21 in each room 8. As a result, it is possible to appropriately suppress the spread of hazardous substances in the ship 1 while reducing costs. [Explanation of Symbols]

[0049] 1 ship 2 hull 3A side 3B side 4. Bottom of the ship 5 Upper Deck 6. Exhaust tower 7 Superstructure 8 rooms 9 aisles 10 Duct section 11 Branch duct 11a one end 11b Other end 12. Collective duct 13 Main duct 14. Air conditioning ducts 15 Ventilator 20. Onboard surveillance system 21 Detection unit 25 Cameras 27 Alarm 29. Fire alarm 60 Monitoring equipment 61 CPU 62 ROM 63 RAM 64 HDD 65 Signal Transceiver Module 71 Signal Input Section 72 Control Unit 73 Output section 80 Display device Section A FA (Fore and Stern Direction)

Claims

1. A hull in which multiple rooms are arranged in each of multiple compartments, A duct section is located in each of the multiple compartments, Equipped with an onboard monitoring system that monitors the inside of the ship, The aforementioned duct section is, Each of the multiple chambers in the aforementioned compartment is provided with a plurality of branch ducts, one end of which is connected to each of the multiple chambers, A collection duct to which the other ends of multiple branch ducts are connected, The system includes a fan located within the collective duct that generates airflow to draw out multiple rooms of air through multiple branch ducts, The aforementioned onboard monitoring system is: A detection unit is placed inside the aforementioned manifold duct to detect harmful substances contained in the air inside the manifold duct, A monitoring device comprising: a control unit that, based on a detection signal from the detection unit, detects that the air in the manifold duct contains the harmful substance, and then stops the operation of the ventilator in the manifold duct where the detection unit is located; The aforementioned onboard monitoring system is: A camera is installed in each of the rooms to which one end of each of the multiple branch ducts is connected, and the camera takes pictures of the inside of the room, The monitoring device further comprises a display device that displays images captured by each of the cameras installed in the plurality of rooms, The control unit, When the presence of the harmful substance in the air within the collective duct is detected, the images captured by each of the cameras in the duct section where the detection unit is located are displayed on the display device. ship.

2. The aforementioned onboard monitoring system is: The vessel further comprises an alarm device, which is located within the hull and, based on a detection signal from the detection unit, detects that the air in the collection duct contains the harmful substance and issues an alarm when the control unit detects this. The vessel according to claim 1.

3. The detection unit detects smoke generated during a fire as a hazardous substance. The vessel according to claim 1 or 2.

Images