KR101633047B1 - Intelligent fire detecting system for duct fire - Google Patents

Abstract

The intelligent fire detection system is installed in a sequential manner in units of installation sections of the duct, measures the internal temperature of ducts in each installation section, periodically transmits them, analyzes the measured temperature changes, And an intelligent receiver which receives and monitors temperature information from the intelligent fire detector and performs fire alarm and fire suppression control in accordance with the fire detection of the intelligent fire detector.

Description

{INTELLIGENT FIRE DETECTING SYSTEM FOR DUCT FIRE}

The present invention relates to an intelligent fire detection system dedicated to duct fire.

In the case of a factory fire, the plant is made larger and more compact, and various hazardous and combustible materials are used in the factory. Therefore, if a fire occurs, the primary damage to property and the spread of the second fire to the nearby factory It is very likely that property and human casualties will be greater.

According to the National Emergency Management Agency's (NEMA), the rate of factory fires among the total number of fires in the whole country from 2008 to 2012 is about 6.23% per year. However, as for the property damage, the property damage of the factory fire accounts for about 25.03% of the total fire, so the property damage is relatively high compared with the number of cases.

Factory fires are caused by a variety of causes, but most of the fires in the ducts take up a large part.

In case of factory duct fire, various dust, oil, and sludge generated by long-term sedimentation occurring in the process environment remain in the duct at all times, and fire occurs frequently due to ignition due to self ignition and fire in high temperature environment .

Typically, textile factories, bakery factories, and automotive paint paints have potential fire hazards due to high temperature process operations.

Especially, in the case of duct fire in the textile factory, fire caused by the tenter equipment used in the dyeing industry occurs a lot. The reason for this is that the risk of fire is very high because the tenter machine operates 24 hours while maintaining the high temperature (150 ℃ ~ 200 ℃) at all times.

In the case of Daegu, where the largest number of textile factories are located in Korea, the number of textile factories in 2007 ~ 2011 is about 37%.

In textile factory in Daegu area, the first firing point of the fire was found to be the highest at 48% in the duct, followed by the fire in the dust collector at about 33%.

This is because the fiber dust and sludge generated during the product process at the factory are adsorbed and accumulated in the duct and the dust collector, and then it is ignited or ignited by the fire or high temperature conduction or radiant heat generated in the fiber product process, .

Due to the nature of the factory duct, it is spatially narrow and elongated, fiber dust and sludge accumulate inside it, and it is characterized by the rapid expansion of the fire by using oil fractions such as fiber dust and sludge as combustibles. , Fire is spread rapidly if it is not found early, and fire suppression is difficult.

Further, due to the nature of the duct, the internal state can not be confirmed, so that it is difficult to confirm the position of the fire source if the flame does not leak to the outside.

The characteristics of the duct fire are analyzed firstly, the fire propagation speed is very fast in the environment inside the duct. Second, it is difficult to confirm the position of the ignition point when the fire occurs due to the nature of the duct fire. Third, the duct connection is long and complicated, and the fire can not be confirmed if the flame in the duct is not leaking to the outside because it is sealed. Fourth, even if the duct is opened and the fire is extinguished, there is a great risk of re-ignition because there is a high possibility that the fume type combustion proceeds in the dust and sludge inside the duct.

In order to minimize the damage of the duct fire, the factories having a certain scale or more have a fire detector installed to detect the fire early, but the installation place is installed in the ceiling of the factory, not in the duct, Because it does not fit the process environment, the reality is that it is not until the fire expands that the fire detector works.

In addition, there is a thermostat-type explosion-proof type heat sensor installed in a duct to detect a fire inside the duct. However, in the case of a thermostat-type explosion-proof type heat detector, the temperature range is from 60 ° C. to 150 ° C. at nominal operating temperature. Since it is a one-dimensional operation method that sends fire signal by simple ON / OFF method, it is not adaptable to various environments (high temperature, dust, sludge, etc.) inside the duct, and malfunctions and side effect problems are appearing. As such, failure to detect fire early may lead to fire delay and failure of early suppression, which may lead to a fire at the fire plant or to a neighboring factory. Even in the case of factory-concentrated areas, high.

In the textile factory in Daegu area, according to the first report on fire recognition, there is no fire alarm system.

The risk of duct fires is the same for factory ducts as well as for commercial kitchen ducts. More than 20% (743 cases) of the kitchen fire in 2012 announced by the National Emergency Management Agency appeared as a fire generated from the kitchen ducts, and mainly the firearms in the kitchen became ignited sources and ignited in the oil dregs near the ducts, It is a fire.

In addition, large fires are frequent in the whole building due to such duct fire. The cause of the duct fire is mainly due to the oil mist used in the kitchen. After the food is cooked in the kitchen for a long time, the oil floats are not completely ventilated through the duct, accumulating in the vicinity thereof, and forming a lump of oil at the entrance of the duct. When these oil spots accumulate for a long period of time, they keep the oil mass about 5 cm thick and cause a fire. This duct fire is characterized by the fact that when it is ignited from the inside, the duct is closed and therefore it is impossible to find the exact fire position. In addition, when the duct is completely ignited by internal oil residue, And loss of life.

In particular, kitchen ducts are exposed to fire at all times because the gas range for cooking food is located at the lower part of the tuck, which is very likely to cause fire.

In addition, when duct fire occurs, the fire is transferred to the whole building at a high speed while riding in a duct.

These duct fires have been reported in the news for a while, and the seriousness of the duct fire has been getting more and more day by day. In the modern society where the nuclear family becomes more and more gradually, the dining culture is rapidly settled and the kitchens equipped with various ducts are increasing day by day.

In the past, it took several hours to extinguish a duct fire, and there were also cases that were evacuated a short time after it evolved.

Because the ducts are long and sometimes very curved, it will be easy to see how difficult it is to evolve a fire in a closed space, such as a duct space in a ceiling or a wall.

Therefore, it is important to minimize the damage of the duct fire. However, it is important to prevent the fire from occurring by detecting the fire in the duct, and to provide the address function and duct environment (dust, sludge, etc.) ), A duct-specific intelligent sensor capable of detecting and alarming various temperature distributions (temperature differences) caused by the internal environment and the length of the duct.

As a result of analyzing the inside of the duct for the commercial use (kitchen), it was confirmed that there was a considerable amount of oil residue after decomposing the waste duct collected, and the inside was photographed using an endoscope camera. However, The oil residue is applied to the entire interior space so that shooting is difficult.

In the case of the detection system installed in the domestic duct, there was no detection system for detecting the inside of most ducts of the duct for the factory and the duct for the business. However, since the duct fire has recently increased, As a trend of detecting duct fires by using thermocouple sensors, the system which extinguishes the fire extinguisher is partially applied. However, since thermocouple sensors are not fire detectors, they are actually taking temporary measures.

That is, since there is no applicable fire detection system to date, it is interlocked with fire extinguishing system by using thermocouple sensor and temperature controller as a temporary measure.

However, it is only necessary to operate the fire detection inside the duct at the simple setting temperature only for a small scale, and the temperature at the cooking time differs from one restaurant to another, so an intelligent sensing system is required to detect an accurate fire.

In particular, in the case of a tenter machine which always operates at high temperature for 24 hours, since the operating temperature differs for each fiber, various temperature distributions exist depending on the duct length, and the temperature of the thermocouple The measurement may not be accurate.

Therefore, it is necessary to use a sensor employing an algorithm that can detect a fire by detecting the temperature change of the installed position of the detector. In the case of a duct for a business, since the length of the duct varies depending on the number of tables, Intelligent sensing is needed because the temperature difference is very severe.

In addition, most of the thermocouples installed in the commercial ducts are installed only at the suction port side, which makes it impossible to detect when the duct is fired.

In case of ventilation equipment in a foreign air duct, there is a case where a special type of duct detector chamber is applied. However, there is a problem in that the adaptability is deteriorated due to clogging of the intake port in applying to the inside of the duct where oil is present.

In order to minimize the fire damage, it is necessary to periodically clean the existing ducts and the ducts of the business to prevent the presence of flammable substances (oil residue, dust, sludge, etc.) in the interior through periodic cleaning. However, Is virtually impossible. This requires regular duct replacement, but ducting is being replaced in the current four-year cycle. Inside the duct, a considerable amount of dust and sludge are accumulated inside, which is a great risk to the fire.

In addition, in the case of factory ducts, to prevent condensation through external insulation of ducts, all of these preventive measures require only minimal priming measures to ensure that fiber dust and sludge are not trapped in ducts, It is a reality that there is no duct-specific fire detector that can detect the fire.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an intelligent fire detection system dedicated to duct fire that can detect the occurrence of a fire inside a duct in order to reduce fire damage of the duct for factory use and the duct for business use.

According to one aspect of the present invention, a plurality of intelligent fire detection systems dedicated to duct fire are sequentially installed in units of installation sections in the duct, and the temperatures of the ducts are measured and periodically transmitted in each installation section, An intelligent fire detector for detecting a fire by analyzing a temperature change, and an intelligent receiver for receiving and monitoring temperature information from the intelligent fire detector and performing fire alarm and fire suppression control according to the fire detection of the intelligent fire detector do.

In addition, an intelligent fire detection system,

And an intelligent signal processor for analyzing the fire control signal received from the intelligent receiver, stopping the exhaust fan installed in the duct according to the fire control signal analysis result, and driving the fire extinguishing system at the same time.

Wherein the intelligent fire detector comprises:

An address setting unit for setting an address of the intelligent fire detector for accurately providing a fire occurrence position, a temperature measurement unit installed in the duct to measure temperature inside the duct in an analog manner in real time, A control unit for transmitting temperature data in a duct and address information set by the address setting unit to the intelligent receiver; and a control unit connected to the intelligent receiver in a wired or wireless manner, the temperature data and address information transmitted from the control unit, And a signal transmission unit for transmitting the signal to the mobile station.

The address setting unit,

You can set your own address by a dip switch or a program.

The temperature measuring unit includes:

And a thermosensitive part installed inside the duct,

The thermally conductive portion may be embedded in the protective case for durability.

Wherein,

It is possible to perform its own sensitivity compensation function so as to prevent deterioration of sensitivity due to contamination.

Wherein,

The temperature monitoring unit may perform temperature monitoring of the temperature data measured by the temperature measuring unit and transmit the abnormal temperature information to the intelligent receiver when the abnormal temperature information is found.

Wherein,

It is possible to perform a rate of rise function of dividing the measured temperature difference DELTA T for each installation section in the duct and grasping a point where the temperature difference is generated by fire.

Wherein,

It is possible to arbitrarily set an operating temperature which is a criterion for fire judgment and to perform a fixed temperature function for recognizing a fire when the measurement result of the temperature measuring unit reaches the operating temperature.

Wherein,

A rate of rise function for dividing the measured temperature difference DELTA T for each installation section in the duct and determining a point at which the temperature difference is generated as a fire and an operation temperature as a reference for fire determination are arbitrarily set, When the measurement result of the measuring unit reaches the above operating temperature, it is possible to perform a complementary function in parallel with the fixed temperature function for recognizing as a fire.

Wherein,

It is possible to detect a fire when the temperature difference between the duct main inlet and the duct starting point is compared with the duct main injection port portion and the temperature difference becomes a certain temperature or more.

Further, in the intelligent fire detection system,

Further comprising a case housing the address setting unit, the temperature measuring unit, the control unit, and the signal transmitting unit,

The case may include a case made of a curable material that is durable to the duct environment.

In this case,

Explosion-proof structure including an explosion-proof structure or an intrinsically safe explosion-proof structure.

The intelligent receiver comprises:

A temperature monitoring unit for providing monitoring screens of temperature data for each installation section in the duct received from the intelligent fire detector step by step, a first stage alarm and control for stopping the system of the process equipment according to a fire signal received from the intelligent fire detector A second stage alarm and control for stopping the exhaust fan installed in the duct, a third stage alarm and control for driving the fire extinguishing system, and a control unit for interlocking with the process equipment and the exhaust fan and using the duct And an interlocking unit for confirming the operation state (ON / OFF) of the process equipment and stopping the process equipment and the exhaust fan under a control of the control unit.

The intelligent receiver comprises:

And a data management unit for storing temperature data received from the intelligent fire detector by time and season, and performing data analysis for sensitivity compensation of the intelligent fire sensor.

According to the embodiment of the present invention, it is possible to prevent the occurrence of fire by detecting the occurrence of a fire in the duct, accurately indicate the position where the fire has occurred, and the durability and temperature compensation that can withstand the duct environment (dust, sludge, (Temperature difference) generated according to the function, the duct internal environment and the length can be detected and alarmed.

FIGS. 1, 2 and 3 illustrate an intelligent sensing system dedicated to duct fire according to an embodiment of the present invention.
4 is a view illustrating an installation of an intelligent fire detector according to an embodiment of the present invention.
5 is a block diagram showing a detailed configuration of an intelligent fire detector according to an embodiment of the present invention.
6 illustrates a case of an intelligent fire detector according to an embodiment of the present invention.
7 is a block diagram illustrating a detailed configuration of an intelligent receiver according to an embodiment of the present invention.
8 and 9 show a monitoring screen of temperature data according to an embodiment of the present invention.
10 is a block diagram showing a detailed configuration of an intelligent signal processor according to an embodiment of the present invention.
11 is a flowchart illustrating a series of processes of an intelligent fire detection method for a duct fire according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Also, the terms of " part ", "... module" in the description mean units for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

Hereinafter, an intelligent fire detection system dedicated to duct fire according to an embodiment of the present invention will be described with reference to the drawings.

FIGS. 1, 2 and 3 illustrate an intelligent sensing system dedicated to duct fire according to an embodiment of the present invention.

Referring to FIGS. 1, 2 and 3, a duct fire-only intelligent sensing system includes an intelligent fire sensor 100, an intelligent receiver 200, and an intelligent signal processor 300.

In this case, FIG. 1 is a diagram for acquiring normal temperature data, in which a plurality of intelligent fire detectors 100 sequentially installed in a duct 400 measure the temperature for each installation interval and transmit the measured temperature to the intelligent receiver 200.

The intelligent receiver 200 monitors the temperature data received from the intelligent fire detector 100 in real time and performs self-checking via a receiver interface (not shown).

FIG. 2 is a diagram showing an abnormal temperature information retention sequence during a fire. The intelligent receiver 200 determines whether or not a fire is caused based on a change in temperature data measured for each installation interval. That is, temperature data is managed for each of the intelligent fire detectors CH1, CH2, CH3, and CH4, and the temperature difference? T between the previously received temperature data and the currently received temperature data is determined You can see the installation section where the fire occurred. That is, the intelligent fire detector 100 in which an abnormal symptom is detected at the temperature difference DELTA T can be immediately grasped.

FIG. 3 is a diagram showing a step-by-step alarm and control sequence in a fire. The intelligent receiver 200 determines whether or not the fire is based on temperature data transmitted from the intelligent fire detector 100. If it is determined as a fire, the control of the process equipment controller 500 is performed to stop the process equipment which is the main cause of the ignition, thereby performing the primary control of the fire, that is, the ignition source removal. Then, the exhaust fan (or the fan) 600 installed in the duct 400 is stopped simultaneously with the fire detection, and the fire extinguishing system 700 is operated. As described above, by stopping the exhaust fan 600, the fire extinguishing effect of the fire extinguishing system 700 can be maximized and the fire spread can be delayed.

FIG. 5 is a block diagram illustrating a detailed configuration of an intelligent fire detector according to an embodiment of the present invention. FIG. 6 is a block diagram of an intelligent fire detector according to an embodiment of the present invention. FIG. 2 is a perspective view of an intelligent fire detector according to an embodiment of the present invention. FIG.

4, a plurality of CH1, CH2, CH3, and CH4 are sequentially installed in the installation section of the duct 400 in the intelligent fire detector 100. FIG. The temperature of the duct 400 is measured and periodically transmitted to the intelligent receiver 200 in each installation period.

Referring to FIG. 5, the intelligent fire detector 100 includes an address setting unit 110, a temperature measuring unit 130, a controller 150, and a signal transmitter 170.

The address setting unit 110 sets an address to the intelligent fire detector 100. The address setting unit 110 can set its own address by a DIP switch or a program.

As described above, an address is given to the entire intelligent fire detector 100 through the address setting unit 110, and it is possible to provide accurate information of the fire occurrence position. In addition, intelligent digestion of the digestion system can be performed in the future.

The temperature measuring unit 130 is an analog method that can measure temperature data in the space of the duct 400 in real time instead of the on / off sensing method.

The temperature measuring unit 130 may use a PT100 sensor or a K-type thermocouple sensor. The temperature measuring unit 130 employs a PT100 sensor for precise measurement below 500 DEG C, and a K-type thermocouple sensor can be used for temperature measurement beyond that.

At this time, as a sensor of the temperature measuring unit 130, a thermal unit (not shown) installed inside the duct 400 is protected by a protective case for durability.

The control unit 150 analyzes the temperature data measured by the temperature measuring unit 130 in real time. And transmits the measured temperature data and address information indicating the installation position received from the address setting unit 110 to the signal transmission unit 170. [

The controller 150 performs a data storage function to perform accurate temperature measurement through temperature compensation.

In addition, the controller 150 performs a self-sensitivity compensation function to prevent a decrease in sensitivity when the intelligent fire detector 100 is contaminated by a certain amount due to a duct environment such as dust, moisture, and sludge.

The control unit 150 transmits the temperature data inside the duct 400 measured in real time by the temperature measuring unit 130 to the intelligent receiver 200 in real time.

The control unit 150 normally monitors the temperature of the installed section of the duct 400. For example, the temperature monitoring of the installation section of the duct normally is CH1 = 190 deg. C, CH2 = 160 deg. C, CH3 = 130 deg. C, and CH4 = 100 deg. Also, abnormal temperature information is transmitted to the receiver in case of fire. At this time, the temperature monitoring is CH1 = 190 deg. C, CH2 = 210 deg. C, CH3 = 170 deg. C, and CH4 = 130 deg.

The control unit 150 is disposed inside the duct 400 (Rate of rise) function which grasps the temperature difference (△ T) per installation section during normal and fire by measuring the temperature per detection section and recognizes the point where the temperature difference occurs by fire and the operation temperature is arbitrarily set, If it is detected as a fire, it performs a fixed temperature function that can send a fire signal. It can also incorporate a complementary function that can be used in combination with the differential type and the constant temperature type.

The control unit 150 determines that the temperature of the duct 400 at the start of the duct where the cooking apparatus or the process equipment is installed is always higher than the other places. Therefore, when the temperature of the duct 400 is higher than the duct main inlet by 30 ° C Fire can be detected.

The signal transmitter 170 transmits the real-time temperature data, fire signal, and address information received from the controller 150 to the intelligent receiver 200. The signal transmission unit 170 and the intelligent receiver 200 may be connected to each other via a cable, or may be connected to each other through a wireless communication network such as a short-range wireless communication, and various networks may be adopted.

The intelligent fire detector 100 described above may have a heat-resistant portion of a sheath material and a durable body so as not to cause problems in structure and function even in a duct environment of dust, moisture, and high temperature. At this time, the thermosensitive part (not shown) is a part of the temperature measuring part 130.

6 shows the case of the intelligent fire detector at various angles.

The intelligent fire detector is completed as shown in Fig. 6 (d) by combining the upper base shown in Fig. 6 (a), the lower base shown in Fig. 6 (b), and the heat sensitive portion shown in Fig. 6 (c) 6 (e) is a bottom view of the upper base of FIG. 6 (a), in which a PCB substrate is assembled. The PCB substrate includes the address setting unit 110, the temperature measurement unit 130, the control unit 150, and the signal transmission unit 170 described above.

The case of this intelligent fire detector has a case made of a sheath material for durability to the duct environment, and thus has durability against dust and moisture inside the duct. The case of the intelligent fire detector may be of explosion-proof type. In this case, it satisfies IPxx class, which is the enclosure protection class, and it is possible to apply explosion-proof structure of intrinsic safety or intrinsic safety explosion-proof structure.

Meanwhile, FIG. 7 is a block diagram showing a detailed configuration of an intelligent receiver according to an embodiment of the present invention, and FIGS. 8 and 9 show a monitoring screen of temperature data according to an embodiment of the present invention.

Referring to FIG. 7, the intelligent receiver 200 includes a temperature monitoring unit 210, an interlocking unit 230, a controller 250, and a data management unit 270.

The temperature monitoring unit 210 provides a monitoring screen of temperature data for each installation section in the duct 400 received from the intelligent fire detector 100. [

The temperature data monitoring screen can be designed as the main screen of the fire extinguishing system controller. It adopts a graphical user interface (GUI) and a 7-inch embedded module that maximizes the user's convenience. It also features step-by-step control, alarm output, real-time temperature display, and graphic user interface (GUI) for efficient maintenance. .

In the monitoring screen provided by the temperature monitoring unit 210, as shown in FIG. 8A, temperature data measured in real time for each installation period are sequentially listed in a normal manner. Then, if an abnormal temperature is detected as shown in FIG. 8 (b), it can be detected that there is a fire.

9 (a), a warning alarm occurrence screen as shown in FIG. 9 (b), a warning alarm occurrence screen as shown in FIG. 9 (c) And the emergency mode switching setting screen as shown in FIG. 9 (d).

Referring again to FIG. 7, the interlocking unit 230 performs a function of interlocking with the fire extinguishing system and various fire fighting equipment 700. The interlocking unit 230 determines the fire based on the data received from the intelligent fire detector 100 and at the same time operates the fire extinguishing facility 700 to suppress the fire prematurely.

In addition, the interlocking unit 230 can confirm the operation state (ON / OFF) of the product process equipment using the duct 400 and stops the process equipment, which is the main cause of the ignition at the time of the fire, It is possible to remove the ignition source. The ventilation fan (ventilator) installed in the duct is stopped simultaneously with the fire detection, thereby maximizing the fire extinguishing effect of the fire extinguishing system 700 and delaying the fire spread. In addition, it is possible to have additional interlocking function of various fire-fighting equipments required for fire extinguishing and evacuation.

The control unit 250 includes a circuit for receiving the step-by-step alarm signal from the intelligent fire detector 100 and controlling the interlocking devices by the step according to the step-by-step alarm signal.

At this time, the controller 250 performs a three-step alarm control. First, the pre-alarm (main alarm) step stops the system of the product process equipment. And a second-stage warning (Warning-Alarm) step stops the exhaust fan installed in the duct (400). And the Fire-Alarm-Siren stage activates the associated duct fire extinguishing system.

The data management unit 270 performs data storage and self determination functions. The data management unit 270 automatically stores the temperature data received from the intelligent fire detector 100 after the connection with the processing equipment, by time of day (1 hour, 1 week, 1 month, 1 year), seasonally. In addition, the sensitivity of the intelligent fire detector 100 can be compensated by the data analysis, so that the normal operation can be secured in the event of fire, and the non-recurrence of the process environment can be minimized.

10 is a block diagram showing a detailed configuration of an intelligent signal processor according to an embodiment of the present invention.

Referring to FIG. 10, the intelligent signal processor 300 includes an interlock 310, an exhaust fan controller 330, a signal processor 350, and an interlock controller 370.

The interlocking part 310 is interlocked with the intelligent fire detector 100.

The exhaust fan control unit 330 stops the exhaust fan 600.

The signal processor 350 receives the fire signal from the intelligent fire receiver in conjunction with the intelligent fire receiver 100 and analyzes the received fire signal.

The interlocking control unit 370 operates various interlocking facilities according to the result of the fire signal analysis of the signal processing unit 350 to secure the efficient operation performance of the fire extinguishing facility, thereby promptly and quickly extinguishing the duct fire. That is, the exhaust fan control unit 330 may be stopped to drive the fire extinguishing system in the duct.

Based on the above description, an intelligent fire detection method dedicated to duct fire can be described as follows.

11 is a flowchart illustrating a series of processes of an intelligent fire detection method for a duct fire according to an embodiment of the present invention.

Referring to FIG. 11, the intelligent fire sensor 100 measures the temperature of each installation section in the duct 400 (S101). The measured temperature data and address information are periodically transmitted to the intelligent fire receiver 200 (S103). Then, the intelligent fire receiver 200 outputs a temperature monitoring screen (S103).

The intelligent fire detector 100 determines whether the fire is detected through temperature change detection (S107). That is, it can be determined whether the set temperature is reached or the temperature difference is out of the predefined category. At this time, if it is not a fire, start from S101 again.

On the other hand, if it is determined as a fire, the fire signal is transmitted to the intelligent fire receiver 200. At this time, the fire signal may include a stepwise alarm signal.

The intelligent fire receiver 200 performs the first stage alarm and control (i.e., system stop of the process apparatus) according to the received fire signal (S113).

Next, the intelligent fire receiver 200 performs a two-step alarm and control (i.e., stopping the exhaust fan installed in the duct 400) according to the received fire signal (S115). At this time, the intelligent fire receiver 200 transmits a fire signal and a control signal to the intelligent signal processor 300 (S117). Then, the intelligent signal processor 300 controls the exhaust fan installed in the duct 400 according to the received control signal (S119).

Next, the intelligent fire receiver 200 performs a three-step alarm and control (i.e., an interlocking operation with the receiver) according to the received fire signal (S121). At this time, when the fire signal and the control signal are transmitted to the intelligent signal processor 300 (S123), the intelligent signal processor 300 drives the fire extinguishing system (S125).

Thereafter, if it is determined that the manual operation (process equipment and exhaust fan) is to be operated again after the fire extinguisher is determined after the fire extinguishment, the intelligent receiver 200 transmits the control signal to the intelligent signal processor 300 (S129). Then, the intelligent signal processor 300 operates the exhaust fan 600 again (S131).

Meanwhile, the intelligent fire receiver 200 stores the temperature data received from the intelligent fire detector 100 according to periods and stores the separated temperature data (S133). Here, the step S133 may be performed at any time after the time point when the temperature data is received rather than after the step S131.

The embodiments of the present invention described above are not implemented only by the apparatus and method, but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: Intelligent fire detector 200: Intelligent fire receiver
300: intelligent signal processor 400: duct
500: Process equipment controller 600: Exhaust fan
700: Fire fighting equipment

Claims (15)

An intelligent fire detector that detects a fire by analyzing measured temperature changes and periodically transmits the measured temperature of each duct in each installation section,
And an intelligent receiver for receiving and monitoring temperature information from the intelligent fire detector and performing fire alarm and fire suppression control in accordance with the fire detection of the intelligent fire detector,
The intelligent fire detector includes an address setting unit for setting an address of the intelligent fire detector for accurately providing a fire occurrence position, a temperature measuring unit installed in the duct for real time measurement of the temperature inside the duct in an analog manner, A controller for transmitting temperature data of the duct measured by the temperature measuring unit and the address information set by the address setting unit to the intelligent receiver, and a control unit connected to the intelligent receiver in a wired or wireless manner, And a signal transmitter for transmitting address information to the intelligent receiver,
Wherein the control unit performs a self-sensitivity compensation function so as to prevent sensitivity degradation due to contamination. The method according to claim 1,
An intelligent signal processor for analyzing the fire control signal received from the intelligent receiver, stopping the exhaust fan installed in the duct according to the result of the fire control signal analysis,
Further comprising: an intelligent fire detection system. delete The method according to claim 1,
The address setting unit,
An intelligent fire detection system that performs its own address setup by a dip switch or a program. The method according to claim 1,
The temperature measuring unit includes:
And a thermosensitive part installed inside the duct,
Wherein the thermal sensor is embedded in a protective case for durability. delete The method according to claim 1,
Wherein,
Wherein the temperature monitoring unit performs temperature monitoring of temperature data measured by the temperature measuring unit and transmits the abnormal temperature information to the intelligent receiver when abnormal temperature information is found. 8. The method of claim 7,
Wherein,
The intelligent fire detection system according to claim 1 or 2, wherein the temperature difference (DELTA T) is divided according to an installed section of the duct, and a point of a temperature difference is detected as a fire. 8. The method of claim 7,
Wherein,
An intelligent fire detection system that sets an operating temperature as a criterion for fire judgment and performs a fixed temperature function to recognize a fire as the result of measurement by the temperature measuring unit reaches the operating temperature. 8. The method of claim 7,
Wherein,
A rate of rise function for dividing the measured temperature difference DELTA T for each installation section in the duct and determining a point at which the temperature difference is generated as a fire and an operation temperature as a reference for fire determination are arbitrarily set, When the measurement result of the measuring unit reaches the above operating temperature, the intelligent fire detection system performing the complementary function in parallel with the fixed temperature function recognized as a fire 11. The method of claim 10,
Wherein,
The intelligent fire detection system detects a fire when the temperature difference between the main inlet of the duct and the start of the duct is compared with the duct main injection port portion and the temperature difference becomes a certain temperature or more. The method according to claim 1,
Further comprising a case housing the address setting unit, the temperature measuring unit, the control unit, and the signal transmitting unit,
Wherein the case includes a case of a durable cushion material in a duct environment. 13. The method of claim 12,
In this case,
An explosion-proof structure including an explosion-proof structure or an intrinsically safe explosion-proof structure. 3. The method of claim 2,
The intelligent receiver comprises:
A temperature monitoring unit for providing monitoring screens of temperature data for each installation section in the duct received from the intelligent fire detector step by step,
A first stage alarm and control for stopping the system of the process equipment in response to a fire signal received from the intelligent fire detector, a second stage alarm and control for stopping the exhaust fan installed in the duct, and a third stage alarm and control for driving the fire fighting system And a control unit
(ON / OFF) of a product process apparatus using the duct, interlocking with the process equipment and the exhaust fan, and interlocking the process equipment and the exhaust fan in a fire in accordance with the control of the control unit part
And an intelligent fire detection system. 15. The method of claim 14,
The intelligent receiver comprises:
A data manager for storing temperature data received from the intelligent fire detector by time and by season and performing data analysis for sensitivity compensation of the intelligent fire detector,
Further comprising: an intelligent fire detection system.

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