Air suction-type fire detection system capable of early detection of a fire location through smoke concentration monitoring and detection method thereof

An air suction-type fire detection system capable of early detection of a fire location through smoke concentration monitoring, the air suction-type fire detection system comprising:

• an air suction-type fire detector that is fitted to the outside of a chamber needing fire detection and detects fire through an inflow of air inside a warehouse;
• a connection line that connects on a first end to the air suction-type fire detector;
• a suction line with an outer surface that has a plurality of suction holes spaced apart from each other at a certain interval, and that is fitted to the inside of the warehouse and sucks air inside the warehouse in real time;
• a pump that is connected between a second end of the connection line and a first end of the suction line, and which supplies power to draw air from inside the warehouse into the suction line;
• an open and shut damper connected to a second end of the suction line;
• wherein:
• the air suction-type fire detector discharges smoke from inside the suction line when a smoke concentration exceeds a set concentration value, sucks air again through the suction line and then determines an existence of fire and the fire location by measuring a change in a smoke concentration in the drawn air in real time;
• the air suction-type fire detector comprises:
• a measurement portion that measures a smoke concentration in air to be drawn in real time;
• a determination portion that determines the existence of the fire and the fire location based on a smoke concentration change graph measured in the measurement portion,
• wherein the smoke concentration change graph is measured, which has a different slope depending on a position of one suction hole into which smoke is initially drawn, and
• wherein the one suction hole is one of the plurality of suction holes;
• a monitoring portion that displays the smoke concentration change graph in real time;
• and
• a database that stores pre-measured smoke concentration change graphs depending on the fire locations stored in the database and then converted into data,
• wherein the pre-measured smoke concentration change graphs stored in the database are those in a state that the smoke is initially drawn into the plurality of suction holes, respectively;
• wherein the determination portion matches the measured smoke concentration change graph with the pre-measured smoke concentration change graphs depending on the fire locations, stored in the database to determine the fire location;
• when a smoke concentration measured in the measurement portion exceeds a pre-set concentration value, the determination portion determines that the fire exists, a control portion controlling the open and shut damper to open, the pump to be operated as a blower to discharge smoke inside the suction line and the pump to be operated as a suction pump again;
• and
• the determination portion compares the smoke concentration change graph measured from the time that the suction pump has been operated again with the pre-measured smoke concentration change graphs depending on fire locations stored in the database, and determines the fire location.