KR102488342B1 - Air intake type fire detector - Google Patents

Abstract

The present invention relates to an air intake type fire detector that detects a fire through smoke and toxic gases. The air intake type fire detector of the present invention comprises: an enclosure (100) that is connected to an outdoor air inflow pipe (P) installed indoors and includes an opening/closing door (110); a gas sensor (200) attached to the top of the enclosure to analyze gas components in the outdoor air supplied from the outdoor air inflow pipe; a connection pipe (300) installed inside the enclosure and connecting the outdoor air inflow pipe and the gas sensor; a three-way valve (400) installed on the connection pipe; a bypass pipe (500) connected to the three-way valve; a vacuum pump (600) installed inside the enclosure and connected to the bypass pipe; a power unit (700) installed on the opening/closing door of the enclosure to supply power to the vacuum pump, gas sensor, and three-way valve; a controller (800) installed on the opening/closing door of the enclosure to control the operation of the vacuum pump, gas sensor, and three-way valve, and to determine whether a fire occurs by receiving data from the gas sensor in real time; and a fire alarm unit connected to the controller in a wired or wireless manner.

Description

Air intake type fire detector {Air intake type fire detector}

The present invention relates to an air intake type fire detector for detecting fire caused by smoke and toxic gas generation.

In general, a fire detector is installed in a building for the purpose of giving an alarm in case of fire and preventing human damage in advance.

These fire detectors are classified into heat detectors that detect heat in the event of a fire, smoke detectors that detect smoke, and flame detectors that detect flames. is configured to detect and transmit a fire detection signal to an electrically connected receiver to generate a fire alarm sound.

Among them, the air suction type fire detector that detects fire using smoke is the fastest and most active fire detector among the fire detectors developed so far, and is in the limelight as the most ideal fire detector for protecting property and human life in buildings.

A conventional air intake type fire detection device includes a gas detection sensor that detects harmful gases generated in the event of a fire, and an alarm unit that generates an alarm signal to notify a dangerous situation due to a fire when the gas detection sensor detects a fire. And, it consists of a controller for controlling the operation of the gas detection sensor and notification unit, and a power supply unit for supplying power to the controller, so that the occurrence of a fire can be detected and responded to quickly and accurately from the beginning of a fire.

However, since the above conventional air intake type fire detection device analyzes the air sucked by the gas detection sensor to determine whether or not there is a fire, when a lot of dust such as dust or fine foreign matter is included in the air, the gas detection The sensor will not work normally.

Therefore, despite the fact that there is no fire, the alarm unit outputs a fire alarm sound or fails to output a fire alarm sound in time in the event of an actual fire.

In addition, the conventional air intake type fire detection device not only occupies a large installation area because the components such as the gas detection sensor, alarm unit, controller, and power supply unit are all made up separately, and it is difficult to install each component in one place. If it is difficult, it is difficult to install and maintain because it must be installed in a distributed manner.

Korean Registered Patent Publication No. 10-2111212

The present invention has been made to solve the above problems, and an object of the present invention is to provide an air intake type fire detector that minimizes the installation area, is easy to install, and is easy to maintain.

In order to achieve the above object, the air suction type fire detector of the present invention is connected to an outside air inlet pipe installed indoors and has an enclosure having an opening and closing door, attached to the upper end of the enclosure, and gas components in the outdoor air supplied from the outdoor air inlet pipe. A gas detection sensor for analyzing, a connection pipe installed inside the enclosure to connect the outside air inlet pipe and the gas detection sensor, a 3-way valve installed in the connection pipe, and a bypass pipe connected to the 3-way valve; A vacuum pump installed inside the enclosure and connected to the bypass pipe, a power supply unit installed on the opening and closing door of the enclosure to supply power to the vacuum pump, gas detection sensor, and 3-way valve, and installed on the opening and closing door of the enclosure a controller that controls the operation of the vacuum pump, the gas detection sensor, and the 3-way valve and receives data in real time from the gas detection sensor unit to determine whether or not there is a fire; A water trap that removes moisture contained in the outside air between the gas detection sensor, a filter body installed between the water trap and the gas detection sensor to filter foreign substances contained in the outside air, and a filter formed in the housing and discharged from the vacuum pump A discharge hole for discharging outside air, coupled to the outside of the enclosure to cover the lower end of the discharge hole and the water trap, and formed inclined to one side so that the water discharged from the water trap gathers in a certain space, and the lowermost end of the inclined portion is recessed downward A protective cover with a cyclone induction part, installed in the cyclone induction part inside the protective cover, and operated for a certain period of time when the vacuum pump operates through the controller to burn foreign substances contained in the outside air flowing into the inside of the protective cover through the discharge hole. and a heat wire for evaporating and removing moisture discharged through the lower end of the water trap, and a fire alarm unit connected to the controller through wire/wireless connection.

The air suction type fire detector according to the present invention configured as described above has a gas detection sensor attached to the enclosure, and is configured to mount all components such as a vacuum pump, a connecting pipe, a controller, a power supply unit, a water trap, and a filter body inside the enclosure. As long as the area where the enclosure can be installed is secured, it can be easily installed, and accordingly, the maintenance is very easy and simple.

In addition, since the present invention is configured to pass through a water trap and a filter before outside air flows into the gas detection sensor, moisture and foreign substances do not flow into the gas detection sensor, greatly improving the reliability of gas analysis and preventing device damage or malfunction. This has a preventive effect.

In addition, since the present invention is configured to automatically clean the outside air inlet pipe at regular intervals through a controller, more convenient and thorough maintenance can be performed.

In addition, since the present invention includes a protective cover formed with a cyclone induction part and a hot wire installed in the cyclone induction part, it is possible to quickly remove foreign substances and moisture contained in the outside air flowing into the protective cover, and thus, as in the prior art, water In order to treat the moisture discharged from the trap, a separate drainage induction pipe is extended or water collection devices are attached and the manager does not have to replace them periodically, so the management convenience is greatly increased and the surroundings are not polluted to maintain a clean indoor environment. There are possible effects.

1 is a perspective view of a state of use of an air suction type fire detector according to the present invention.
Figure 2 is a perspective view of an open state of the air suction type fire detector according to the present invention.
3 is a development view showing the structure of an air suction type fire detector according to the present invention.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments based on the accompanying drawings.

Prior to this, the terms or words used in this specification and claims do not reflect the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of terms in order to best explain his or her invention. It must be interpreted with the corresponding meaning and concept.

In addition, terms or words used in the present specification and claims are only used to describe specific embodiments, and are not intended to limit the present invention.

For example, singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "include" or "has" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more It should be understood that it does not preclude the possibility of the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

In addition, when a part such as a layer, film, region, plate, etc. is said to be “on” another part, this includes not only the case where it is “directly on” the other part, but also the case where another part is present in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is said to be "below" another part, this includes not only the case where it is "directly below" the other part, but also the case where there is another part in between.

In addition, terms including ordinal numbers such as “first” and “second” used herein may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another.

Hereinafter, in describing an embodiment of the present invention in detail with reference to the drawings, the same reference numerals are used for the same components, and only different parts are mainly described so as not to overlap as much as possible for clarity.

1 is a perspective view of an air suction type fire detector in use according to the present invention, FIG. 2 is a perspective view of an open state of the air suction type fire detector according to the present invention, and FIG. 3 is a structure of the air suction type fire detector according to the present invention. As a developed view showing, the air intake type fire detector according to the present invention includes a housing 100, a gas detection sensor 200, a connection pipe 300, a three-way valve 400, and a bypass pipe 500 and a vacuum pump 600, a power supply unit 700, a controller 800, and an alarm unit (not shown).

The enclosure 100 is installed on an indoor wall and has an opening and closing door 110.

An outside air inlet pipe (P) is connected to the upper end of the enclosure 100. In this case, a connection hole is formed at the upper end of the housing 100 so that the end of the outside air inlet pipe P can enter the interior of the housing 100.

The outdoor air inlet pipe (P) may be composed of a plurality, and is disposed on the ceiling of a place where a fire is to be sensed, and a plurality of suction holes 120 are formed to suck air from the place.

In this case, the outside air intake pipe (P) may be installed in plurality to suck air in various places.

The gas detection sensor 200 is attached to the top of the enclosure 100 and includes a detection chamber that analyzes in real time the gas components in the outside air introduced through the suction hole 120 of the outside air inlet pipe P and the detection chamber. It consists of a fan unit that draws in outside air.

Therefore, when the fan unit operates, outside air is introduced through the suction hole 120 of the outside air inlet pipe (P), and the outside air introduced into the outside air inlet pipe (P) is sucked into the detection chamber to analyze the gas components. do.

The connection pipe 300 is installed inside the enclosure 100 to connect the outside air inlet pipe P and the gas detection sensor 200. Therefore, the connection pipe 300 is connected to each air inlet pipe P on a one-to-one basis and is not exposed to the outside from inside the housing 100.

In this case, the entire or partial section of the connection pipe 300 is preferably made of a transparent material so that the internal state can be easily grasped with the naked eye.

The three-way valve 400 is installed in the connection pipe 300 and opens and closes the connection pipe 300 while operating according to an external electrical signal.

Also, the bypass pipe 500 is connected to the 3-way valve 400 and opened and closed according to the operation of the 3-way valve 400 .

Therefore, according to the operation of the 3-way valve 400, the flow direction of the outside air sucked into the outside air inlet pipe P is switched to the connection pipe 300 or the bypass pipe 500.

The vacuum pump 600 is installed inside the enclosure 100 while being connected to the bypass pipe 500. When the vacuum pump 600 is operated in a state where the three-way valve 400 is opened to the bypass pipe 500, outside air is sucked into the outside air inlet pipe P and passes through the bypass pipe 500 to the vacuum pump ( 600).

In this case, a discharge hole 130 for discharging outside air discharged from the vacuum pump 600 is formed in the enclosure 100 .

The power supply unit 700 is installed in the opening/closing door 110 of the enclosure 100 to supply power to the vacuum pump 600, the gas detection sensor 200, and the three-way valve 400.

The controller 800 is installed in the opening and closing door 110 of the enclosure 100 to control the operation of the vacuum pump 600, the gas detection sensor 200, and the three-way valve 400, and the gas detection sensor. It receives data from 200 in real time and determines whether there is a fire.

In addition, the controller 800 may use a timer to control the operation of the vacuum pump 600 to be operated only for a predetermined time at regular intervals.

The alarm unit is connected to the controller 800 through wire/wireless communication, and when an alarm signal is transmitted from the controller 800, alerts attention through various means to notify occurrence of a fire.

Meanwhile, a water trap 900 for removing moisture contained in the outside air may be installed between the connection pipe 300 and the gas detection sensor 200 at the lower end of the enclosure 100 .

The water trap 900 has an open lower part and is composed of a body portion connected to the connection pipe 300 and the gas detection sensor 200 in communication, and a moisture absorption filter built into the body portion, so that outside air passes through the moisture absorption filter. The moisture contained in is filtered and then passed through. Moisture collected in the moisture absorption filter is discharged to the outside through an open lower portion formed at the lower end of the body portion.

Therefore, even if dew condensation occurs inside the outside air inlet pipe (P) and the connection pipe 300 due to the temperature difference between the inside and outside of the enclosure 100, the water trap 900 blocks the inflow into the gas detection sensor 200, so this Therefore, problems such as damage and malfunction of the gas detection sensor 200 do not occur.

On the other hand, it is preferable that a filter body 950 for filtering foreign substances contained in the outside air is installed between the water trap 900 and the gas detection sensor 200.

The filter body 950 minimizes malfunction of the gas detection sensor 200 by removing foreign substances contained in the outside air.

In addition, a protective cover 960 surrounding the lower end of the discharge hole 130 and the water trap 900 may be coupled to the outer side of the enclosure 100 .

In this case, the protective cover 960 is inclined to one side so that the water discharged from the water trap 900 gathers in a certain space.

In addition, a cyclone induction part 965 recessed downward is formed at the lowermost end of the inclined part of the protective cover 960 .

Therefore, all of the foreign substances contained in the outside air that have escaped through the discharge hole 130 and the moisture discharged from the water trap 900 are gathered into the cyclone induction unit 965 .

An exhaust hole 966 is formed on one side of the protective cover 960 to discharge outside air introduced into the protective cover 960, and the exhaust hole 966 is formed between the cyclone guide part 965 and the water trap 960. formed in the section.

Also, a hot wire 970 is installed inside the cyclone induction part 965 .

The hot wire 970 burns foreign substances contained in the outside air flowing into the protective cover 960 through the discharge hole 130 and evaporates and removes moisture discharged through the lower end of the water trap 900 .

In this way, since the hot wire 970 is installed in the cyclone induction part 965, the effect of removing foreign substances and moisture can be maximized.

The hot wire 970 is controlled by the controller 800 to operate only for a certain period of time when the vacuum pump 600 operates.

Therefore, in order to process the water discharged from the water trap 900, there is no need to extend a separate drain pipe or attach water collection devices and periodically replace them by the manager, so management convenience is greatly increased. , Foreign substances discharged through the discharge hole 130 do not contaminate the surroundings, so that a clean indoor environment can be maintained.

In the air intake type fire detector according to the present invention configured as described above, when the manager operates the gas detection sensor 200 by manipulating the power supply unit 700 and the controller 800 installed in the enclosure 100, the outside air is passed through the outside air inlet pipe (P). is sucked, and the outside air sucked into the outside air inlet pipe (P) flows into the gas detection sensor 200 via the connection pipe 300 and the three-way valve 400, and the analysis of the gas contained in the outside air in real time It will be done.

At this time, all moisture and foreign substances are removed while the outside air passes through the water trap 900 and the filter body 950 before being introduced into the gas detection sensor 200 . Accordingly, the reliability of gas analysis is greatly improved, and equipment damage or malfunction is prevented.

On the other hand, the controller 800 receives the gas analysis data in real time and detects whether there is a fire, and transmits an alarm signal to the alarm unit through wired/wireless communication if it is determined to be a fire.

The alarm unit alerts attention through various means only when an alarm signal is transmitted from the controller 800 and immediately notifies the occurrence of a fire.

As such, the air suction type fire detector according to the present invention can quickly and accurately detect the occurrence of a fire in a wide indoor space through the outside air inlet pipe (P).

In addition, the air suction type fire detector according to the present invention has a gas detection sensor 200 attached to the enclosure 100, and a connection pipe 300, a controller 800, a power supply unit 700 and water Since all components such as the trap 900 and the filter body 950 are mounted, it can be easily installed with a simple operation of installing only the enclosure 100 once the installation area for installing the enclosure 100 is secured. Maintenance is also very easy and simple.

On the other hand, the present invention can automatically clean dust or foreign substances accumulated inside the outside air intake pipe (P) and the connection pipe (300) through the controller (800).

In this case, the administrator may set a desired cleaning cycle and time using a timer mounted in the controller 800 .

Therefore, when the timer operates, the 3-way valve 400 blocks the flow path of the connection pipe 300 so that outside air does not flow into the gas detection sensor 200 and at the same time the flow path toward the bypass pipe 500 is operated to open, and the controller 800 operates the vacuum pump 600 only for a set period of time.

In this way, a strong suction force acts on the outside air inlet pipe (P) and the connection pipe 300 through the vacuum pump 600, and in this process, the dust and dirt accumulated in the outside air inlet pipe (P) and the connection pipe 300 are removed. As foreign substances are discharged to the outside through the vacuum pump 600 through the bypass pipe 500, cleaning is automatically performed.

On the other hand, the administrator may perform cleaning by manually manipulating the three-way valve 400 and the vacuum pump 600 when the internal state of the connecting pipe 300 is poor by looking at the transparent portion of the connecting pipe 300 .

As described above, since the inside of the outside air inlet pipe (P) and the connection pipe 300 are automatically cleaned periodically in the present invention, the dust or foreign matter flowing into the gas detection sensor 200 is minimized and the gas analysis accuracy is greatly improved. This will prevent equipment damage or malfunction.

Although the preferred embodiments of the present invention have been shown and described with reference to the drawings, they can be modified and changed in various ways without departing from the spirit or field of the present invention provided by the claims below. It should be included in the scope of the invention.

100 ... enclosure 110 ... opening and closing door
130 ... discharge hole 200 ... gas detection sensor
300... connector 400... 3 way valve
500 ... bypass pipe 600 ... vacuum pump
700 ... power unit 800 ... controller
900 ... water trap 950 ... filter sieve
960 ... protective cover 965 ... cyclone induction part
970 ... hot wire

Claims (1)

An enclosure connected to an outdoor air intake pipe installed indoors and having an opening and closing door;
a gas detection sensor attached to an upper end of the enclosure to analyze a gas component in the outside air supplied from the outside air inlet pipe;
A connection pipe installed inside the enclosure to connect the outside air inlet pipe and a gas detection sensor;
A three-way valve installed in the connecting pipe;
a bypass pipe connected to the 3-way valve;
a vacuum pump installed inside the enclosure and connected to the bypass pipe to suck in and discharge dust and foreign substances accumulated in the outside air inlet pipe and the connection pipe;
a power supply unit installed on the opening and closing door of the enclosure to supply power to the vacuum pump, the gas detection sensor, and the 3-way valve;
a controller installed in the opening and closing door of the enclosure to control the operation of the vacuum pump, the gas detection sensor, and the 3-way valve and receiving data from the gas detection sensor in real time to determine whether there is a fire;
A water trap installed at the lower end of the enclosure to collect moisture contained in the outside air between the connection pipe and the gas detection sensor through a moisture adsorption filter and then discharging it to the outside through an open lower part of the lower end;
a filter body installed between the water trap and the gas sensor to filter foreign substances contained in the outside air;
a discharge hole formed in the enclosure to discharge outside air discharged from the vacuum pump;
It is coupled to the outer side of the enclosure so as to surround the lower end of the discharge hole and the water trap, is formed inclined to one side so that the water discharged from the water trap is gathered in a certain space, and the lowermost cyclone induction part is formed at the bottom of the inclined part. cover;
It is installed in the cyclone induction part inside the protective cover and operates only for a certain period of time when the vacuum pump is operated through the controller to burn foreign substances contained in the outside air flowing into the protective cover through the discharge hole and through the lower end of the water trap. Heating wire for evaporating and removing discharged moisture; and
An air intake type fire detector including a fire alarm unit connected to the controller through wire/wireless connection.

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