KR102014697B1 - Alarm System for Leak Sensing Using Radio Frequency (RF) System - Google Patents

Abstract

Disclosed is a fluid leak detecting and alarming system comprising: a fluid leak alarm (transmitting part) (50) connected to a fluid leak detecting part (10) through a connection line (20) to detect a leak of a hazardous substance; and a fluid leak alarm (receiving part) (60) generating an alarm sound and turning a warning lamp on by receiving a fluid leak signal transmitted from the fluid leak alarm (transmitting part) (50). The fluid leak alarm (transmitting part) (50) and the fluid leak alarm (receiving part) (60) are operated through a radio frequency method. The fluid leak alarm (transmitting part) (50) comprises a warning lamp (51), an antenna (52), a power lamp (53), an alarm lamp (54), a fluid leak alarm module (55), a radio transmitter (56), an earth leakage breaker (57), a noise filter (58) and an SMPS (59). The fluid leak alarm (receiving part) (60) comprises a warning lamp (61), an antenna (62), a power lamp (63), a first alarm lamp (64), a second alarm lamp (65), a radio receiver (66), a relay (67), an earth leakage breaker (68), a noise filter (69) and an SMPS (70).

Description

Leakage detection alarm system using radio frequency method {Alarm System for Leak Sensing Using Radio Frequency (RF) System}

The present invention relates to a leak detection alarm system that detects leaks of various chemicals that are dangerous substances used in industrial sites and operates a warning sound or a warning light. More specifically, the present invention is installed in the office or the guard room so that the leak detection unit and the leak at all times, including a leak detection sensor installed in the field around the chemical facility in order to detect the leakage of dangerous chemicals, the warning sound or warning lights The present invention relates to a leak detection alarm system that operates a leak alarm that operates.

Toxic chemicals and other hazardous chemicals must be stored or handled with great care. Leaking dangerous chemicals during storage or use can cause fatal accidents. In industrial sites dealing with various dangerous chemicals, leak detection sensors are installed to detect leakage of these chemicals.

Leak detection sensors are installed around the hazardous storage tanks or in locations where other leaks can be detected to detect leaking hazardous chemicals. When the fluid leaks over the leak detection sensor, it detects a change in resistance and sends the signal to the leak alarm. The signal transmitted to the leak alarm is activated by a warning sound or a warning light to recognize the leak.

The leak detection unit, which detects leaks by installing a leak sensor, is located at the same site as the dangerous goods storage tank. However, because workers or managers are not always present at the site, a leak alarm is installed in the office or security room to activate the warning sound or alarm to detect leakage.

Hazardous materials sites with leak detection units and offices or guard rooms with leak alarms are usually located several tens or hundreds of meters away. Sometimes it can reach 1-2 km. Until now, an alarm system operating by connecting a leak detection unit and a leak alarm with a wire is operated.

1 is a schematic system configuration diagram of a typical leak detection alarm system that has been operating.

As shown in FIG. 1, the leakage detection unit 10 installed around the chemical is connected to the leakage alarm 30 by a connection line 20. The leakage alarm 30 is mainly located at a distance far from the leakage detection unit 10. The leakage alarm 30 is connected to a power source and the power lamp 31 is turned on. In the normal state in which no leakage is detected, the alarm lamp 2 (indicated by 'CLEAR') is turned on, and in the state in which leakage is detected, the alarm lamp 1 (Indicated by 'LEAK') is turned on, and the warning lamp 34 lights up to generate a warning sound.

In the conventional alarm system that connects the leakage detection unit 10 and the leakage alarm 30 by the connection line 20, the installation cost due to the wiring and piping is considerably high. Since the connecting line 20 is mainly installed along the edge of the building wall or into the ceiling or the ground of the building, the construction is very difficult and the construction cost also increases.

Patent No. 1006708 includes a leak detection alarm device, a display unit, a wireless communication device, a leak management server, a manager information storage unit for storing a leak manager terminal information. When the unique identification information of the leak detection alarm device is received, a leak detection alarm device for transmitting a leak leakage signal in the form of a short message together with the unique identification information of the leak detection alarm device is disclosed.

Korean Patent No. 2016-0112125 has a terminal detecting unit and a terminal mounted on a problem prediction part including a connection part on a pipe, and having a sensor for detecting a leaked liquid chemical and generating a detection signal including a wireless signal. Disclosed is a liquid transfer pipe leak detection system including a signal receiver capable of receiving a wireless signal of a sensor of a sensor and recognizing unique information of a corresponding sensor and displaying a leaked position through the unique information. In this system, a Wi-Fi (WiFi) method is used, including a repeater or a relay point (Acess Point) that the signal receiving unit receives a wireless signal of the terminal detection unit and converts it into a wired signal.

The present invention solves the problems of the conventional leakage detection alarm system or the WiFi type detection system operating by connecting the leakage detection unit and the leakage alarm by wire, and can be applied to a wide range of industrial sites, the conventional wiring or plumbing equipment Since it is not necessary, the construction cost is reduced, the construction period is shortened, and it is to develop a leak detection alarm system using the radio frequency (RF) method of the present invention that can efficiently operate the alarm system.

It is an object of the present invention to provide a new leak detection alarm system capable of wirelessly installing a leak detection unit and a leak alarm in a relatively large industrial site about 1 to 2 km away.

Another object of the present invention is to provide a leak detection alarm system that reduces construction costs and shortens the construction period because no wiring or plumbing equipment is required to connect the leak detection unit and the leak detector.

Another object of the present invention is to provide a leak detection alarm system that can be quickly and efficiently in the event of a leak leakage by installing a leak alarm in the office or guard room where the manager always resides.

Still another object of the present invention is to provide a leakage detection alarm system capable of efficiently coping with leakage leakage by wirelessly connecting a leakage detection unit installed in two or more locations and a leakage alarm installed in two or more locations wirelessly. will be.

The above and other objects of the present invention can be achieved by the present invention described in detail below.

The leak detection alarm system according to the present invention is a leak detector (transmitter) 50 connected to a leak line (10) connected to a leak detector 10 installed to detect leaks of dangerous substances, the leak detector (transmitter) 50. Receives the leakage signal transmitted by the alarm and generates a warning sound and the beep alarm (receiver) (60) for operating the beacon, the leakage alarm (transmitter) 50 and the leak alarm (receiver) 60 is a radio frequency system It is characterized by that it works as.

Leakage alarm (transmitter) 50 is a warning light is beeped by a buzzer (not shown) when the leakage occurs, the beacon 51, the antenna 52 for transmitting the electromagnetic wave output from the radio transmitter 56, Power lamp (53), which is turned on when the power is supplied, the alarm lamp (54), which is turned on when the leakage sensor detects leakage, the leakage alarm module (55) for receiving and controlling the signal sent by the leakage sensor detecting leakage, leakage alarm A wireless transmitter 56 for wirelessly transmitting a signal generated by a module in real time, an earth leakage breaker 57 that cuts off a power supply (AC220V) when a circuit is shorted, and attenuates noise components of a power supply, Noise filter 58 for supplying power only, and SMPS 59 for converting AC 220V power to DC 12V or DC 24V.

Leakage alarm (receiver) 60 is a warning light is activated by the buzzer (not shown) when the leakage occurs, beacon 61, the antenna 62 for receiving the electromagnetic wave output from the radio transmitter 56, Power lamp 63 which is turned on when power is supplied, alarm lamp 1 (64) which turns red when the leakage sensor detects leakage, and green LED lamp is turned on when leakage occurs when power is supplied. Alarm lamp 2 (65) that is turned off, wireless receiver (66) for receiving signals output from the wireless transmitter (56) in real time, and the signal received from the wireless receiver makes NO (Normal Open) or NC (Normal Close) contact A relay 67, an earth leakage breaker 68 that cuts off the power supply AC220V when the circuit is shorted, a noise filter 69 that attenuates noise components of the power supply, and supplies only the power required; and AC 220V SMPS that converts power to DC 12V or DC 24V ( 70).

Each of the liquid leak detectors (transmitters) 50A, 50B, and 50C is provided for each of the plurality of liquid leak detectors 10A, 10B, and 10C installed at different positions, and the plurality of liquid leak detectors (transmitters) 50A, 50B, and the like. 50C) is wirelessly connected to one leak detector (receiver) 60. In this case, the leak alarm (receiver) 60 has a pair of alarm lamps 1 and 2 (64a and 65a, 64b and 65b, 64c and 65c) corresponding to the number of the leak detectors (transmitter) 50A, 50B and 50C. Is installed.

In another embodiment, each of the liquid leak detectors (transmitters) 50A, 50B, 50C is provided for each of the plurality of liquid leak detectors 10A, 10B, and 10C disposed at different locations, and the liquid leak detectors (receivers) are two or more. It may be provided in plural (60A, 60B).

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

The present invention is installed so that the leak detection unit and the leak alarm can be wirelessly operated in a wide range of industrial sites about 1 to 2 km away, there is no need for wiring or plumbing equipment connecting the leak detection unit and the leak alarm, and the construction cost thereof The invention has the effect of providing a leak detection alarm system that can reduce and shorten the construction period, and can install a leak alarm in the office or guard room where the manager always resides so that a leak leakage accident can be promptly and efficiently taken.

1 is a schematic system configuration diagram of a conventional typical leak detection alarm system that has been operating so far.
2 is a leak detection alarm system according to an embodiment of the present invention, a leak alarm (transmitter) 50 connected by a connection line 20 to the leak detection unit 10, and the leak alarm (transmitter) 50. And a leaky alarm (receiving unit) 60 operating in a radio frequency system is a schematic system configuration.
3 is a schematic configuration diagram of a leakage alarm (transmitter) 50.
4 is a schematic configuration diagram of the leak detector (receiver) 60.
5 is a leak detection alarm system according to another embodiment of the present invention, each of which is installed in each of the leak detection units 10A, 10B, and 10C installed at three locations (transmitter) 50A, 50B, 50C and one It is a schematic system block diagram of the alarm system comprised of the leak detector (receiver) 60.
Figure 6 is a leak detection alarm system according to another embodiment of the present invention, leak leakage (transmitter) (50A, 50B, 50C) and 2 installed for each leak detection unit (10A, 10B, 10C) installed in three places This is a schematic system diagram of an alarm system composed of two leak detectors (receivers) 60A and 60B.

The present invention relates to a leak detection alarm system that detects leakage of various chemicals, which are dangerous substances used in an industrial site, and activates a warning sound or a warning light, and is installed in connection with a leak detection unit for detecting leakage of a chemical. It is composed of a leakage alarm (receiver) by receiving a radio signal transmitted from an alarm (transmitter) and the leak alarm (transmitter), the leak alarm (transmitter) and the leak alarm (receiver) is a leak detection alarm that operates in a radio frequency method It's about the system.

In a conventional leak detection alarm system, a leak detection unit 10 installed around a chemical is connected to a leak alarm 30 by a connection line 20. The leak detector 30 may be installed at a short distance from the leak detection unit 10, but is mainly located at a distance far from the leak detection unit 10 when the manager is always installed in an office or a guard room. 1 is a schematic system configuration diagram of a typical leak detection alarm system that has been operating. Since the leak detection unit 10 is connected to the leak alarm 30 by the connection line 20, wiring and piping work must be accompanied essentially.

The present invention is connected to the leakage detection unit is installed in the leakage alarm (transmitter), the office where the administrator resides or the leak leakage (receiver) is installed, the leakage alarm (transmitter) and the leakage alarm (receiver) is a radio frequency It works in a way that does not involve wiring and plumbing.

2 is a leak detection alarm system according to an embodiment of the present invention, a leak alarm (transmitter) 50 connected by a connection line 20 to the leak detection unit 10, and the leak alarm (transmitter) 50. And a leaky alarm (receiving unit) 60 operating in a radio frequency system is a schematic system configuration.

Leakage detection alarm system of the present invention is a leakage alarm (transmitter) 50, the leakage alarm (transmitter) 50 is connected to the leakage detection unit 10 installed to detect the leakage of dangerous substances by a connecting line (20) It is composed of a leakage alarm (receiver) 60 for receiving a transmitted leakage signal and generating a warning sound and operating a warning lamp, and the leakage alarm (transmitter) 50 and the leakage alarm (receiver) 60 are in a radio frequency manner. It works.

3 is a schematic configuration diagram of a leakage alarm (transmitter) 50.

The leakage alarm (transmitter) 50 is a warning sound by a buzzer (not shown) when the leakage occurs, and at the same time the warning lamp 51 is turned on. When power is supplied to the leakage alarm (transmitter) 50, the power lamp 53 is turned on. The power lamp uses amber LED. When the leakage sensor of the leakage detection unit 10 detects leakage, the alarm lamp 54 is turned on. Alarm lamp uses red LED. The signal sent by the leakage sensor to detect leakage is controlled by the leakage alarm module 55. The signal generated by the leakage alarm module 55 is wirelessly transmitted in real time through the wireless transmitter 56 and the antenna 52. The earth leakage breaker 57 is installed to cut off the power supply AC220V when the circuit is shorted. The noise filter 58 which attenuates the noise component of a power supply and supplies only the power supply required is provided. The SMPS 59 which converts AC 220V power supply into DC 12V or DC 24V is installed. The configuration of the leakage alarm (transmitter) 50 as described above can be easily implemented by those skilled in the art having ordinary skill in the art.

4 is a schematic configuration diagram of the leak detector (receiver) 60.

The leakage alarm (receiver) 60 is a warning sound by a buzzer (not shown) when the leakage occurs, and at the same time the warning light 61 is turned on. When power is supplied to the leakage alarm (receiver) 60, the power lamp 63 is turned on. The power lamp uses amber LED. Alarm lamp 1 (64) lights up in red when leak is detected. Alarm lamp 2 (65) is the green LED lamp is turned on when the green LED lamp is turned on in the normal state and the leakage occurs. The wireless receiver 66 receives a signal output from the wireless transmitter 56 in real time, and the relay 67 makes a normal open (NO) or normal close (NC) contact signal received from the wireless receiver. The earth leakage breaker 68 is installed to cut off the power supply AC220V when the circuit is shorted. A noise filter 69 is provided to attenuate the noise component of the power supply and supply only the required power supply. An SMPS 70 for converting AC 220V power supply into DC 12V or DC 24V is installed. The configuration of the leakage alarm (receiver) 60 as described above can be easily implemented by those skilled in the art having ordinary skill in the art.

5 is a leak detection alarm system according to another embodiment of the present invention, each of which is installed in each of the leak detection units 10A, 10B, and 10C installed at three locations (transmitter) 50A, 50B, 50C and one It is a schematic system block diagram of the alarm system comprised of the leak detector (receiver) 60.

As shown in FIG. 5, when the leakage detection unit is installed at different positions, each leakage detection (transmission unit) 50A, 50B, and 50C are installed for each of the plurality of leakage detection units 10A, 10B, and 10C to be installed. These plurality of leak detectors (transmitters) 50A, 50B, and 50C are wirelessly connected to one leak detector (receiver) 60. In this case, the leak alarm (receiver) 60 has a pair of alarm lamps 1 and 2 (64a and 65a, 64b and 65b, 64c and 65c) corresponding to the number of the leak detectors (transmitter) 50A, 50B and 50C. Is installed. That is, three pairs of alarm lamps 1 and 2 (64a and 65a, 64b and 65b, 64c and 65c) corresponding to three channels are installed for the three leak detectors (transmitters) 50A, 50B and 50C. The administrator can find out the leak location by looking at the channel of the alarm lamp that is activated.

Figure 6 is a leak detection alarm system according to another embodiment of the present invention, leak leakage (transmitter) (50A, 50B, 50C) and 2 installed for each leak detection unit (10A, 10B, 10C) installed in three places This is a schematic system diagram of an alarm system composed of two leak detectors (receivers) 60A and 60B.

As shown in FIG. 6, each of the leak detectors (transmitters) 50A, 50B, and 50C is installed for each of the plurality of leak detectors 10A, 10B, and 10C installed at different positions, and two leak detectors (receivers). 60A and 60B may be installed. Of course, more leakage alarm (receiver) can be installed depending on the site situation and needs.

Leakage detection alarm system of the present invention is installed in the leakage detection unit 10, the leakage alarm (transmitter) 50 connected by the connection line 20, and transmit and receive with the leakage alarm (transmitter) 50 in a radio frequency method The leakage alarm (receiver) 60 can be conveniently installed anywhere at a desired position without wiring or piping work, and the transmission / reception failure rate is zero because it transmits and receives at a short distance by a radio frequency method. Therefore, it can be used very safely and efficiently as an alarm system for detecting leakage of dangerous substances.

Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.

Claims (8)

In order to detect dangerous chemicals leaking, a leak detection sensor is installed around the dangerous goods storage tank or in a place where leak leakage can be detected, and when the leaked fluid passes over the leak detection sensor, a leakage signal generated by detecting a change in resistance is transmitted. A leakage alarm (transmitter) 50 connected to the leakage detection unit 10 for a leakage line to generate a warning sound and operate a warning light when the leakage occurs; And
A leakage alarm (receiver) 60 which receives the leakage signal transmitted by the leakage alarm (transmitter) 50 to generate a warning sound and operate a warning light;
Consists of,
When leakage occurs, the leakage alarm (transmitter) 50 emits an alarm sound by a buzzer (not shown) and operates an alarm lamp 51 and an antenna 52 for transmitting electromagnetic waves output from the wireless transmitter 56. , Power supply lamp 53 which is turned on when the power is supplied, the alarm lamp 54 which is turned on when the leakage sensor detects leakage, and the leakage alarm module 55 which receives and controls the signal sent by the leakage sensor detecting leakage, leakage Wireless transmitter 56 for transmitting the signal generated from the alarm module wirelessly in real time, an earth leakage breaker 57 to cut off the power supply (AC220V) when the circuit is short-circuited, attenuates the noise component of the power supply, A noise filter 58 for supplying only power to the power supply, and an SMPS 59 for converting AC 220V power into DC 12V or DC 24V,
When the leakage occurs, the leakage alarm (receiver) 60 is a beep (not shown) beeps (beep) and beeps at the same time operated 61, the antenna 62 for receiving the electromagnetic wave output from the radio transmitter 56 , Power lamp 63 which is turned on when power is supplied, Alarm lamp 1 (64) which turns on red when the leakage sensor detects leakage, and green LED lamp turns on when the leakage occurs when power is supplied. Alarm lamp 2 (65) is turned off, the radio receiver 66 that receives the signal output from the radio transmitter 56 in real time, the signal received from the radio receiver 66 NO (Normal Open) or NC (Normal Close) Relay 67 for making a contact, an earth leakage breaker 68 that cuts off the power supply (AC220V) when the circuit is shorted, and a noise filter 69 that attenuates noise components of the power supply and supplies only necessary power When converting AC 220V power to DC 12V or DC 24V Includes a SMPS (70),
The leak detector (transmitter) 50 and the leak detector (receiver) 60 is a leakage detection alarm system, characterized in that the operation in a radio frequency method.
delete delete According to claim 1, wherein the leakage detection unit 10 is provided in plural, each leakage detection unit is provided with each leakage alarm (transmitter), one or more leakages to transmit and receive with the plurality of leakage alarm (transmitter) Leakage detection alarm system, characterized in that the alarm (receiver) (60) is installed.
The liquid leakage detection alarm system according to claim 4, wherein the leakage alarm (receiver) 60 is provided with a pair of alarm lamps 1 and 2 corresponding to the number of the leakage alarms (transmission).
In order to detect dangerous chemicals leaking, a leak detection sensor is installed around the dangerous goods storage tank or in a place where leak leakage can be detected, and when the leaked fluid passes over the leak detection sensor, a leakage signal generated by detecting a change in resistance is transmitted. Leakage alarm (transmitter) 50 is installed connected to the leakage detection unit 10 for the leakage (transmitter) 50 and the leakage alarm (receiver) (60) installed within 2 km from the leak detector (transmitter) (50) radio frequency Transmit and receive in an (RF) manner; And
When the leakage signal is detected, the leakage alarm (transmitter) 50 and the leakage alarm (receiver) 60 simultaneously generate a warning sound and operate a warning light;
Including a step;
When the leakage is generated, at the leakage alarm (transmitter) 50, the warning light 51 of the leakage alarm (transmitter) 50 is operated by a buzzer (not shown) and at the same time,
The antenna 52 transmits electromagnetic waves output from the radio transmitter 56,
When the power is supplied, the power lamp 53 is turned on,
When the leak detection sensor detects leak, the alarm lamp 54 is turned on.
The leakage detection module 55 receives and controls the leakage signal sent by the leakage detection sensor to detect leakage.
The wireless transmitter 56 wirelessly transmits a leakage signal generated by the leakage alarm module 55 in real time.
When the circuit is shorted, the ground fault breaker 57 cuts off the power supply (AC220V),
Noise filter 58 attenuates the noise component of the power supply, supplies only the power required, and
SMPS (59) converts AC 220V power to DC 12V or DC 24V,
When leakage occurs, in the leakage alarm (receiver) 60, a warning light 61 is operated by a buzzer (not shown) and at the same time,
The antenna 62 receives the electromagnetic wave output from the radio transmitter 56,
When the power is supplied, the power lamp 63 is turned on.
When the leakage detection sensor detects leakage, alarm lamp 1 (64) lights up in red.
When alarm lamp 2 (65) is normal, the green LED lamp is powered on and green LED lamp is OFF when leakage occurs.
The radio receiver 66 receives the leakage signal output from the radio transmitter 56 in real time,
The relay 67 makes NO (Normal Open) or NC (Normal Close) contact with the leakage signal received from the wireless receiver 66,
The circuit breaker 68 cuts off the power supply (AC220V) when the circuit is shorted,
Noise filter 69 attenuates noise components of the power supply, supplies only the power required, and
SMPS 70 converts AC 220V power to DC 12V or DC 24V,
Alarm method in a leak detection alarm system, characterized in that.
According to claim 6, wherein the leakage detection unit 10 is provided in plural, each leakage detection unit is provided with a respective leakage alarm (transmitter), one or more leakages to transmit and receive with the plurality of leakage alarm (transmitter) An alarm method in a leak detection alarm system, characterized in that an alarm (receiver) (60) is provided.
The alarm of claim 6, wherein the leakage alarm (receiver) 60 is provided with a pair of alarm lamps 1 and 2 corresponding to the number of the leakage alarms (transmitter) for each channel. Way.

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