KR20210097338A - R-type fire alarm panel with leakage detection sensors - Google Patents

Abstract

The present invention provides an R-type fire receiving device connected with a leakage detection sensor, which connects a leak detection sensor capable of detecting water, chemical solution, submersion, etc. to a repeater of the R-type fire receiving device. Based on the detected result, an R-type receiver generates an alarm, and notifies the information to a disaster prevention room.

Description

R-type fire alarm panel with leakage detection sensors

The present invention relates to an R-type fire receiver, and in particular, a leak detection sensor that has an integrated detection function by adding a leak detection sensor for detecting water leakage, leakage of hazardous chemical solutions, immersion, etc., as well as a sensor for detecting fire. It relates to the connected type R fire receiver.

The R-type fire receiver that generates an alarm according to the detection of a fire is connected to various fire detection sensors, that is, a temperature sensor, a flame sensor, a smoke sensor, etc., and generates an alarm according to the detected result.

As an example of such an R-type fire receiver, in Korean Patent Laid-Open Publication No. 10-2013-0027847 (a repeater and R-type fire alarm receiver system flexible to an error in a fire detection line), a plurality of detectors 111 as shown in FIG. A plurality of monitoring zones 11 in which the transmitter 112 is connected in parallel to the signal line 113, an R-type fire alarm receiver 12 that receives an alarm signal and a diagnostic signal and outputs a control signal, a plurality of signal lines ( 113) and the R-type fire alarm receiver system configured including repeaters 13 that identify the alarm signal loaded in the monitoring area 11 and transmit the alarm signal, the diagnostic signal, and the control signal between the monitoring area 11 and the R-type receiver 12 suggested.

These detectors 111 and transmitters 112 are connected in parallel to a signal line terminated by a terminating resistor, and the signal line is designed so that a predetermined DC voltage according to related regulations, for example, a DC 24V voltage is maintained from the repeater.

When heat or smoke due to fire is applied to the detector at a predetermined level or more, the internal resistance is rapidly lowered or is designed to be short circuited, and the transmitter 112 has a low internal resistance as the switch is closed by an external force pressed by a person who finds a fire by hand. and is designed to generate an alarm signal in the repeater 13 by a change in the voltage level accordingly.

Therefore, the repeater 13 connected to the detector 111 monitors the level of the DC voltage applied to the signal line 113, and when the internal resistance of the detector 111 or the transmitter 112 suddenly changes, the signal line 113 ), an alarm can be generated by detecting a voltage change in which the DC voltage level drops from 24V to around 5V according to the equivalent resistance.

However, the R-type fire alarm receiver system according to the prior art has a problem that cannot detect accidents such as water leakage in pipelines or tanks, chemical solution leakage such as acid or alkali, and water immersion because only a sensor for detecting a fire is connected. In the case of installing such a leak sensor, a chemical solution leak sensor, and a immersion sensor, a separate controller and an alarm module must be installed, so the cost is greatly increased.

<Prior art literature>

- Republic of Korea Patent Publication No. 10-2013-0027847

(Repeater and R-type fire alarm receiver system flexible to failure of fire detection line)

The present invention for solving this conventional problem is by connecting a leak detection sensor capable of detecting water, chemical solution, immersion, etc. to the repeater of the R-type fire receiving device, and the R-type receiver is alerted by the result detected through this. The purpose of this is to provide an R-type fire receiver connected with a leak detection sensor that generates a leak and notifies the information to the disaster prevention room.

In order to achieve the above object, the R-type fire receiver to which the leak detection sensor according to the present invention is connected,

A plurality of fire detection sensors and leak detection sensors are connected to a repeater, and the repeater is connected to an R-type fire alarm receiver configured to receive an alarm signal, thereby transmitting an alarm signal between the fire detection sensor and the leak detection sensor and the R-type receiver. is configured to

The leak detection sensor

A sensing unit for sensing a toxic chemical solution is wound inside the main body by having conductive lines formed side by side at a distance from each other in the longitudinal direction on the upper surface of the base film, and the sensing unit is drawn out of the main body through a waterproof sleeve. , The main body is provided with a base portion extending in the form of a plate in the direction in which the sensing portion is drawn out, the sensing portion drawn out to the outside is attached to the upper surface of the base portion, and the sensing portion is in contact with each conductive line of the sensing portion in a roll shape to sense. A roll terminal for applying a current is provided inside the main body, and a circuit unit for generating an alarm signal by the sensing signal sensed by the sensing unit and transmitting a leak detection signal to the CCTV module through the communication unit is built-in .

The R-type fire receiver to which the leak detection sensor according to the present invention is connected connects the leak detection sensor capable of detecting water, chemical solution, submersion, etc. to the repeater of the R-type fire receiver. Since the R-type receiver generates an alarm and notifies the information to the disaster prevention room, a separate wiring for leak detection, an alarm module, etc. are unnecessary, and thus very economical installation is possible.

1 is a view showing the structure of an R-type fire alarm receiver system according to the prior art.
2 is a view showing the structure of an R-type fire receiver according to the present invention.
3 is a view showing the structure of the leak detection sensor applied in the present invention.
4 is a view showing the cross-sectional structure of the leak detection sensor.
5 is a view showing a structure in which a sensing current is applied by contacting a roll terminal with a conductive line of a sensing unit;
Fig. 6 is a circuit block diagram;

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention.

In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like.

In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention.

Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the embodiments of the present invention illustrated below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

The embodiments of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art.

2 is a road showing the overall structure of the R-type fire alarm receiver of the present invention, and the basic structure is similar to that of the R-type fire alarm receiver system according to the prior art.

That is, a plurality of fire detection sensors 120 are connected to the repeater 110, and the repeater 110 is connected to an R-type fire alarm receiver 100 that receives an alarm signal and a diagnostic signal and outputs a control signal, thereby providing an alarm. It has a structure for identifying a signal and transmitting an alarm signal, a diagnostic signal, and a control signal between the fire detection sensor 120 and the R-type receiver 100 .

Since this structure is similar to or the same as that of the prior art, the leak detection sensor 200 connected to each of the repeaters 110 is additionally described in the present invention.

In general, indoors and outdoors where R-type fire receivers are installed, water or hazardous chemical solutions such as acid or alkali solutions leak from pipes or storage tanks, or underground floors, machine rooms, etc. Flooding accidents often occur.

In order to detect such a leak, a leak detection sensor should be installed at a location where leakage is expected and then connected to a separate alarm module. By connecting to the , extra wiring, alarm module, etc. are unnecessary, and very economical installation is possible.

To this end, the leak detection sensor 200 extends outwardly from one side of the body 210 as shown in FIG. 3 and has a waterproof sleeve from the body 210 on the upper surface of the base part 222 in the form of a rigid plate integrally formed. It has a structure in which the sensing unit 230 in the form of a film is drawn out and attached through the 211 .

As shown in FIG. 4 , the sensing unit 230 may be attached and fixed by a gel-type adhesive provided on the upper surface of the base unit 222 .

The sensing unit 230 has a structure in which a pair of conductive lines 232 and 223 are formed side by side at an interval on the upper surface of the base film 231 .

The conductive lines 232 and 233 have a structure formed side by side at regular intervals to detect water or a harmful chemical solution such as a leaking acid solution or an alkali solution, and may be formed by plating or sputtering with a conductive metal material. .

When power for generating capacitance is applied to the conductive lines 232 and 233, capacitance is formed across the two conductive lines 232 and 233.

Therefore, when water or a toxic chemical solution comes into contact with the first conductive line 232 and the second conductive line 233 , the capacitance, that is, the capacitance generated between the conductive lines 232 and 233 , of the main body 210 . The type of solution is distinguished by calculation in the circuit unit 260 built therein.

Of course, the leakage may be detected by a change in impedance that changes due to leakage between the two conductive lines 232 and 233 without detecting the leakage by the capacitance.

The circuit unit 260 includes a control unit 262, a communication unit 263, a buzzer 264, and a memory 265, as shown in FIG. 6, and an LED 213 is provided on the upper surface of the main body 210. .

It is preferable that both the body 210 and the base 220 are made of Teflon, etc., which is strong against harmful chemicals.

The buzzer 264 generates an audible alarm sound by receiving an alarm signal from the control unit 262 , and the LED 213 generates a visual warning light.

The communication unit 263 performs short-range communication with the communication unit 360 of the CCTV module 300 .

When leakage is detected from the sensing unit 230, the control unit 262 generates an alarm signal by driving the buzzer 264 and the LED 213 and outputs a leakage detection signal, that is, an alarm signal to the communication unit 263 at the same time. do.

At this time, an alarm signal is output to the communication unit 263 together with its ID stored in the memory 265 .

Therefore, the communication unit 263 transmits an alarm signal to the repeater 110 by wire or wirelessly, and accordingly, the repeater 110 generates an alarm according to the alarm signal to the R-type receiver 100, and transmits the alarm signal. And the ID of the leak detection sensor 200 is transmitted to the remote disaster prevention room.

On the other hand, the controller 262 calculates the capacitance value according to the capacitance formed between the conductive lines 232 and 233. Since each solution has a unique dielectric constant, the size of the capacitance value can be confirmed by the dielectric constant.

Accordingly, when the sensing unit 230 comes into contact with water due to rain or snow, or a chemical solution that leaks, it operates as a capacitor and generates capacitance, ie, capacitance, according to the dielectric constant.

Since the capacitance values of each solution are all different, the controller 262 can determine the type of the solution by the capacitance value. At this time, the memory 265 stores data on the capacitance value of each solution to be sensed. Therefore, the controller 262 can determine the type of solution by comparing the capacitance value stored in the memory 265 with the capacitance value sensed by the conductive lines 232 and 233 with each other.

Therefore, when it is determined that the control unit 262 is water, it does not generate an alarm signal, but generates an alarm signal only in the case of a hazardous chemical solution.

Alternatively, when a leaked solution is located across the two conductive lines 232 and 233, the control unit 262 determines water and a hazardous chemical solution according to the electrical conductivity of the solution, and the water and each chemical solution have the electrical conductivity. is different, it is sensed, and the type of the solution is determined by comparing it with the conductivity value of each solution stored in the memory 265 , and then whether or not an alarm is generated.

On the other hand, as shown in FIG. 4 , the sensing unit 230 is wound around the winding roll 240 installed inside the body 210 , and a part thereof is drawn out through the waterproof sleeve 211 to the base unit 220 . ) is attached and fixed to the upper surface of the gel adhesive 221 to be detachably attached.

Therefore, if the sensing unit 230 located on the upper surface of the base unit 220 is contaminated or damaged, it is separated from the gel adhesive 221 and then cut with scissors or a knife, and again from the body 210 to the base unit. By pulling out as much as the length of 220 and attaching it by the gel adhesive 221 provided on the upper surface of the base 220, it is possible to easily reinstall.

In addition, the sensing current for detecting the chemical solution leaking into the respective conductive lines 232 and 233 of the sensing unit 230 is applied to the roll terminal unit 250 installed inside the body 210 as shown in FIGS. 4 and 5 . The two roll-shaped terminals 251,253 come into contact with the upper side of the conductive lines 232 and 233, respectively, and these roll terminals 251,253 are the supports 252 and 253 fixed inside the body 210. rotatably supported by

Therefore, since the roll terminals 251,253 are pressed and contacted to enable rolling on the upper surface of each conductive line 232 and 233, when the sensing unit 230 is drawn out, as well as installed on the upper surface of the base unit 220 It is possible to apply the sensing current by stably contacting the conductive lines 232 and 233 even in the state.

All of the roll terminals 251,253 and the supports 252 and 253 are formed of a conductive material, and thus themselves become conductive electrodes, which have a structure directly connected to the control unit 262 .

As described above in detail a specific part of the content of the present invention, for those of ordinary skill in the art, it is clear that this specific description is only a preferred embodiment, and the scope of the present invention is not limited thereby. something to do.

Accordingly, it is intended that the substantial scope of the present invention be defined by the appended claims and their equivalents.

100: R-type receiver 110: repeater
120: fire detection sensor 200: leak detection sensor
210: body 220: base part
221: gel adhesive 230: leak detection sensor
231: base film 232, 233: conductive line
240: winding roll 250: roll terminal part
251.253: roll terminal 252,254: support
260: circuit unit 261: battery
262: control unit 263: IoT module
264: buzzer 265: memory

Claims (3)

A plurality of fire detection sensors and leak detection sensors are connected to a repeater, and the repeater is connected to an R-type fire alarm receiver configured to receive an alarm signal, thereby transmitting an alarm signal between the fire detection sensor and the leak detection sensor and the R-type receiver. An R-type fire receiver to which a leak detection sensor is connected, characterized in that it is configured to do so.
The method of claim 1, wherein the leak detection sensor
A sensing unit for detecting a toxic chemical solution is wound inside the body by having conductive lines formed side by side at a distance from each other in the longitudinal direction on the upper surface of the base film, and the sensing unit is drawn out of the body through a waterproof sleeve. , The main body is provided with a base portion extending in the form of a plate in the direction in which the sensing portion is drawn out, the sensing portion drawn out to the outside is attached to the upper surface of the base portion, and the sensing portion is in contact with each conductive line of the sensing portion in a roll shape to sense. A roll terminal for applying a current is provided inside the main body, and a circuit unit for generating an alarm signal by the sensing signal sensed by the sensing unit and transmitting a leak detection signal to the CCTV module through the communication unit is built-in R-type fire receiver connected with a leak detection sensor, characterized in that.
3. The method of claim 2, wherein the circuit unit
a memory in which capacitance values for a plurality of solutions are stored;
The type of water and hazardous chemical solution is determined by comparing the capacitance value formed in the conductive line with the capacitance value stored in the memory, and an alarm signal is generated accordingly and an alarm signal is inputted from a leak detection sensor installed in the vicinity. When the control unit for generating an alarm signal;
An R-type fire receiver to which a leak detection sensor is connected, characterized in that it comprises; a buzzer and an LED for generating an audible and visual alarm by the alarm signal.

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