KR20140124495A

KR20140124495A - Hold smoke system having an improved test plug

Info

Publication number: KR20140124495A
Application number: KR1020130042065A
Authority: KR
Inventors: 이현만
Original assignee: 현대중공업 주식회사
Priority date: 2013-04-17
Filing date: 2013-04-17
Publication date: 2014-10-27

Abstract

The present invention relates to a hold smoke system with an improved test plug. Specifically, the hold smoke system with an improved test plug of the present invention comprises: an intake fan which sucks internal air of a cargo tank through a pipe connected to a plurality of exhaust air inlet- outlets formed on the cargo tank of a ship; and a sensor which detects smoke of the air sucked through the intake fan; a CO2 injecting unit which injects CO2 into the cargo tank through the pipe connected to the exhaust air inlet/outlets when fire breaks out in the cargo tank; a three-way value which is installed among the pipe connected to the exhaust air inlet-outlets, the intake fan, and the CO2 injecting unit to be opened and closed; and a control unit which controls the three-way valve to open and close the connection to the intake fan and controls the CO2 injecting unit to inject CO2 into the cargo tank by determining outbreak of fire in the cargo tank when the sensor detects smoke.

Description

[0001] The present invention relates to a hold smoke system having an improved test plug,

The present invention relates to a hold smoke system with an improved test plug and more particularly to an improved test plug installed to artificially inject smoke to test whether CO2 is injected automatically in the event of a fire in a ship And more particularly,

Generally, if a fire occurs on a ship at sea, it can lead to a major accident, which can lead to a great casualty and property damage. Therefore, in order to prepare for the fire of the ship, equipment such as a fire extinguisher is put in place in the ship to suppress the fire or a fire extinguishing system is installed.

The ship is divided into a dock, an engine room, a player window, a stern window, a residence hall, and a cargo window divided by a bulkhead in terms of function. In the case of a cargo ship loaded with cargo, the height is so high that it is difficult to suppress the fire in the event of a fire. To this end, it is necessary to install a fire extinguishing system that detects and extinguishes fire early. At the same time, there is a need for a method to periodically test whether the fire extinguishing system is working properly.

1. Korean Registered Patent No. 10-1185459 (September 18, 2012)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hold smoke system in which smoke is sensed at the beginning of a fire and CO2 is automatically sprayed to suppress the fire. Further, it is an object of the present invention to provide a hold smoke system having an improved test plug so that smoke can be artificially sprayed to test whether CO2 is automatically sprayed in the event of a fire.

A hold smoke system having an improved test plug of the present invention comprises an intake fan for sucking air in a cargo hold through a pipe connected to a plurality of intake and exhaust ports formed in an upper portion of a cargo hold of a ship; A sensor unit for detecting the presence or absence of smoke in the air sucked through the suction fan; A CO2 injector for injecting CO2 into the cargo hold through a pipe connected to the plurality of intake and exhaust ports when a fire occurs in the cargo hold; A three-way valve installed between the intake fan and the CO2 injecting unit and opened and closed, a pipe connected to the plurality of intake and exhaust ports, Way valve is controlled so as to close the connection with the intake fan when the presence of smoke is detected through the sensor unit and the CO2 injection unit is controlled to inject CO2 into the cargo hold, And a control unit for controlling the control unit.

Further, a hold smoke system having an improved test plug of the present invention is installed at a position and a height accessible to an operator on a pipe connected to the plurality of intake and exhaust ports, and in order to test the operation of the CO2 injector, And a test plug to which a smoke injection tool for injecting smoke by an operator's operation is mounted.

As described above, the hold smoke system having the improved test plug of the present invention has the following effects.

In the event of a fire in a ship, it is possible to quickly detect smoke and inject CO2 automatically to suppress the fire early. In addition, a test plug that can test whether CO2 is injected automatically at a normal time is installed at a position that is easily accessible to the operator, so that the CO2 injection test can be performed from time to time, so that it can be safely prepared for fire.

1 illustrates a configuration of a hold smoke system having an improved test plug according to an embodiment of the present invention;

Hereinafter, a hold smoke system having an improved test plug according to the present invention will be described with reference to the accompanying drawings.

1 is a diagram illustrating a configuration of a hold smoke system having an improved test plug according to an embodiment of the present invention.

Referring to FIG. 1, a hold smoke system having an improved test plug of the present invention includes an intake fan 130, a sensor unit 140, a CO2 injection unit 150, a three-way valve 120, a control unit 160, And test plugs 180-1 and 180-2.

In the upper portion of the cargo hold of the ship, a pair of intake and exhaust devices 110 are formed as shown in FIG. 1 on each of the forward side and the aft side. Each intake and exhaust port 110 is connected through a pipe and is connected to a three-way valve 120 as shown in the figure.

Way valve 120 is installed between the pipe connected to the intake and exhaust port 110 and the intake fan 130 and the CO2 injecting unit 150 to be opened and closed. More specifically, the three-way valve 120 has three ports, each of which is connected to a pipe connected to the intake and exhaust port 110, an intake fan 130, and a CO2 injection unit 150.

The intake fan 130 sucks the air inside the cargo hold through a pipe connected to the intake and exhaust port 110 under the control of the control unit 160.

The sensor unit 140 detects the presence or absence of smoke in the air sucked through the suction fan 130. That is, when smoke is contained in the air sucked through the suction fan 130, smoke is detected by the sensor unit 140, and the detection signal is transmitted to the control unit 160.

When a fire occurs in the cargo hold, the CO2 injecting unit 150 injects CO2 into the cargo hold through a pipe connected to the intake and exhaust port 110 to suppress the fire. At this time, the three-way valve 120 closes the connection with the intake fan 130 and operates to prevent CO2 from leaking toward the intake fan 130.

The control unit 160 controls the three-way valve 120 so that when the presence or absence of smoke is detected through the sensor unit 140, a fire is generated in the cargo hold and the connection with the intake fan 130 is closed. The control unit 160 controls the CO2 injecting unit 150 to inject CO 2 into the inside of the cargo hold.

With the above-described configuration, when a fire occurs, the presence of smoke is detected and CO2 is injected into the cargo hold, so that the fire can be automatically suppressed.

The test plugs 180-1 and 180-2 are installed at positions and height accessible to an operator on a pipe connected to the intake and exhaust port 110. [ The test plugs 180-1 and 180-2 are equipped with a smoke injection tool for injecting smoke by an operator's operation in order to test whether the CO2 injecting section 150 operates.

1, the first test plug 180-1 extends through the auxiliary pipe 170 to a height of 1.5 m from the ground passage. The operator can mount the smoke injection device on the first test plug 180-1 located in the passage on the bottom side and inject the smoke to test whether the CO2 is properly injected from the CO2 injection part 150. [

Similarly, the second test plug 180-2 is installed on the pipe at a position 1.5 m from the parapet 190. The operator mounts the smoke injection device on the second test plug 180-2 located in the railway passage 190 and injects the smoke to test whether the CO2 is properly injected from the CO2 injection part 150. [

By installing the test plugs 180-1 and 180-2 as described above, the operator can test the CO 2 injection of the hold smoke system from time to time, so that the operator can safely prepare for the fire.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

It is therefore to be understood that the embodiments described above are illustrative and not restrictive in all respects and that the scope of the invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the meaning and scope of the invention, and from the equivalents thereof, be included within the scope of the present invention.

110: intake and exhaust port 120: three-way valve
130: intake fan 140: sensor unit
150: CO2 injection part 160: Control part
170: auxiliary pipe 180-1: first test plug
180-2: second test plug 190: rail passage

Claims

An intake fan for sucking air inside the cargo hold through a pipe connected to a plurality of intake and exhaust ports formed in an upper portion of the cargo hold of the ship;
A sensor unit for detecting the presence or absence of smoke in the air sucked through the suction fan;
A CO2 injector for injecting CO2 into the cargo hold through a pipe connected to the plurality of intake and exhaust ports when a fire occurs in the cargo hold;
A three-way valve installed between the intake fan and the CO2 injecting unit and opened and closed, a pipe connected to the plurality of intake and exhaust ports,
Way valve is controlled so as to close the connection with the intake fan when the presence of smoke is detected through the sensor unit and the CO2 injection unit is controlled to inject CO2 into the cargo hold, And a control unit for controlling the operation of the hold smoke system.

The method according to claim 1,
A test plug installed at a position and a height accessible by a worker on a pipe connected to the plurality of intake and exhaust ports and equipped with a smoke injection tool for injecting smoke by an operator's operation in order to test whether the CO2 injection part operates, Further comprising: a second test plug having an improved test plug.