KR102527745B1 - Leakage detection sensor equipped with leakage alarm reset switch, and the leakage alarm recovery system - Google Patents

Abstract

The present invention relates to a leak detection sensor and, particularly, to a leak detection sensor that is equipped with a switch that can reset a leak alarm to allow a manager to directly cancel the alarm due to the occurrence of a leak in a field, and also restore the leak alarm of the entire system by inputting a reset switch. To this end, the present invention includes a main body installed at a leak site to detect the leak and display a leak detection status; and the reset switch provided in the main body and generating a signal to cancel the alarm.

Description

Leakage detection sensor equipped with leakage alarm reset switch, and the leakage alarm recovery system}

The present invention relates to a leak detection sensor and an alarm recovery system using the same, and in particular, the leak detection sensor itself is provided with a switch capable of resetting a leak alarm so that a manager can cancel the alarm due to leakage directly in the field Of course, the present invention relates to a leak detection sensor and a leak alarm recovery system so that the leak alarm of the entire system can be restored by an input of a reset switch.

Businesses that produce or use semiconductors, displays, solar power, secondary batteries, various chemicals, oil refining, and various hazardous substances use many hazardous chemicals. Environmental damage ensues.

Therefore, it is necessary to prevent the occurrence of great damage in advance by detecting the leakage of these hazardous chemicals in advance and generating an alarm. do.

In order to detect the leakage of these various hazardous chemicals, various leak detection sensors are used. Non-contact sensors and the like are widely used.

As an example of a leak detection sensor, in Korean Patent Registration No. 10-1938098 (a leak sensor using electrodes and optics), as shown in FIG. 1, a prism 111 installed in the center to protrude toward the ground, and the prism A main body 110 including electrode sensors 112 installed at regular intervals so as to surround the periphery of (111); A PCB part including an optical sensor 121, a first LED 122, and a second LED 123 installed on the bottom of the center to receive light that is reflected and received after irradiating light with the prism 111 of the main body 110. (120); And a leak sensor using electrodes and optics including a cover part 130 fastened to the main body 110 and having a plurality of leg parts 131 formed at the bottom so that a certain space S is formed from the ground.

Therefore, the cover part 130 is installed at a certain distance from the ground E by the leg part 131, and a space is formed between the leg parts 131, and the tear liquid penetrates into this space.

When water penetrates in this state, the water does not reach the prism 111 due to the surface tension and contacts the electrode sensor 112. As a result, the electrode sensor 112 is energized and a detection signal is detected, and also the prism. When it reaches 111 and is also detected by the optical sensor 121, the first LED 122 is turned on by the control unit provided in the PCB unit 120, so that it can be confirmed that the current water leakage state.

On the other hand, when oil penetrates, the surface tension of the oil is low, so it does not touch the electrode sensor 112 and directly contacts only the prism 111, and the detection signal is detected only by the optical sensor 121, so the control unit determines that the oil is leaking and the second LED 123 ) is output so that it lights up.

Therefore, it is possible to detect conductive liquid and non-conductive liquid.

In a typical leak detection sensor including this prior art, the leak detection state is alerted by lighting of the LED, but the detection signal is transmitted to the remote integrated control panel through the wire 134, so that the integrated control panel monitors the leak state through the monitor. An alarm box as well as an alarm sound are generated to immediately notify the manager audibly.

By the way, when a leak is detected using a typical leak detection sensor including the prior art, when a leak occurs, it is notified to a remote control panel and an alarm is generated visually and audibly, but no leak occurs. In many cases, there are frequent errors that trigger alarms.

In other words, there are many cases where an error in alarm occurs due to a change in sensitivity, damage, or deterioration of the leak detection sensor, and even if an alarm is generated due to normal leak detection, the administrator misjudges it as an error in alarm and does not check the leak site. There are cases in which the alarm is reset and released on the monitor of the control panel while the alarm is off.

Therefore, there is a problem of causing great damage by failing to promptly take measures against the occurrence of a large amount of leakage.

In addition, when a manager recognizes a leak alarm and then takes measures such as washing the leak detection sensor at the leak site, the alarm is automatically canceled and restored, so that only the leak detection sensor is taken and the root cause of the leak is not taken action. Failure to do so often occurs.

In this case, the administrator misjudges that the leakage state has been taken, so this also has a problem of causing greater damage.

<Prior art literature>

1. Republic of Korea Patent No. 10-1938098

(Leak sensor using electrodes and optics)

In order to solve this conventional problem, the present invention provides a reset switch capable of restoring an alarm in the leak detection sensor body, and the alarm of the leak detection sensor and the alarm of the remote control panel are released only when the reset switch is input. Its purpose is to provide a leak detection sensor and a leak alarm recovery system having a leak alarm reset switch that can prevent greater damage due to alarm errors and action errors.

A leak detection sensor having a leak alarm reset switch according to an example of the present invention for achieving the above object is,

A main body installed at a leakage site to detect leakage and display a leakage detection state;

It is characterized in that it is configured to include; a reset switch provided in the main body to generate a signal for canceling the alarm.

In addition, the leak alarm recovery system,

A leak detection sensor installed at a leakage site to detect leakage, display a leakage detection state, and equipped with a reset switch for canceling an alarm;

a field controller receiving a leak detection signal from the leak detection sensor, generating a leak alarm and outputting a leak detection signal, releasing an alarm when an input is generated from the reset switch and transmitting an input of the reset switch;

It is characterized in that it consists of; a control panel that generates an alarm by the leakage detection signal of the field controller and cancels the alarm when the input of the reset switch is transmitted.

In the present invention having such a configuration, the alarm can be released only when the manager directly inputs the reset switch of the leak detection sensor at the leak site, so that when the alarm occurs, the manager directly dispatches to the site and accurately checks the leak state. enable action to be taken.

Due to this, it is possible to prevent a case in which an alarm in the control panel is reset and released without confirming the leakage site due to an alarm error, and a case where only measures such as simply washing the leak detection sensor are taken at the leakage site. It has the advantage of being able to actively prevent enormous damage such as human life, property, and environmental pollution due to non-disclosure.

1 is a view showing an example of a leak sensor according to the prior art.
Figure 2 is a view showing the structure of the leak detection sensor according to the present invention.
Figure 3 is a cross-sectional structural view of Figure 2;
Fig. 4 is a block diagram showing a leak alarm recovery system;

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention.

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

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

In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the 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, not simply the name of the 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 exemplified below may be modified in many different 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 skilled in the art.

Figure 2 is a diagram showing the structure of the leak detection sensor according to the present invention, Figure 3 is a cross-sectional structure diagram of Figure 2, Figure 4 is a block diagram showing a leak alarm recovery system.

As shown in FIGS. 2 and 3, the leak detection sensor 200 according to the embodiment of the present invention includes a cylindrical body 201 with upper and lower ends blocked. It can be made of PTFE (Poly Tetra Fluoro Ethylene) material to have chemical and chemical resistance, and in addition to PTFE, FEP (Fluorinated Ethylene Propylene Copolymer), PFA (Perfluoroalkoxy), ETFE (Edthylene Tetra Fluoro Ethylene) have chemical and chemical resistance. It may be formed of various materials having.

The main body 201 is provided with a reset switch 210, but this reset switch 210 is shown as being located on the top of the main body 201, but this is not limited to that position, but the side of the main body 201 may be provided in However, it would be most desirable for the convenience of input to be located at the upper end of the main body 201 .

The reset switch 210 may be a switch of various types such as a capacitance type, a mechanical switch, an electronic switch, etc., and may be a switch that generates a signal at every input, and this reset switch 210 also has chemical resistance and chemical resistance. It would be nice if it was made of the same material.

However, in order not to be exposed to the outside of the body 201, preferably, a capacitance type switch is applied so that the reset switch has chemical resistance and chemical resistance by being located inside the upper part of the body 201 having chemical resistance and chemical resistance. It does not have to have chemical resistance, which will be very advantageous in terms of manufacturing cost and structure.

That is, by locating the capacitive switch close to the inside of the upper end of the main body 201, the structure of the main body 201 can be designed very simply, and the manufacturing cost of the main body 201 as well as the reset switch 210 The cost of can be implemented at a low cost, which can form the exterior shape of the main body 201 very neatly.

Furthermore, as the reset switch 210, a physical switch directly input by a person such as an administrator, a mechanical contact type switch that operates as a jig, or a communication type switch that operates with a protocol or wired or wireless signal may be widely applied.

The main body 201 is equipped with a fixing holder part as shown in FIG. 1 of the prior art, so that it can be fixed to the floor or wall, and is not limited to the structure of the fixing holder part, and is easily detachable by providing various types of fixing holder parts. Fixation is possible.

At the upper end of the body 201, a display unit 220 for visually displaying a normal state in which leakage does not occur and a detection state of leakage is provided. The display unit 220 includes a red LED 221 and a green LED 222 2 and 3 show a state in which the display unit 220 protrudes upward from the main body 201 and is exposed, but is not necessarily limited thereto.

For example, when the body 201 is formed to be transparent or translucent, the display unit 220 is positioned inside the body 201 having chemical resistance and chemical resistance, so that the light emitted from the display unit 220 is emitted from the body ( 201) and is exposed to the outside so that the leakage state can be easily checked. In this case, the display unit 220 is not exposed to the outside, so it can prevent damage by chemicals and is advantageous for waterproofing, and The structure of the main body 201 can also be designed very simply and simply, so it will be very advantageous in terms of manufacturing cost.

A cable 230 for power supply and signal transmission is pulled out from the upper side of the main body 201, and this cable 230 can be pulled out through the side of the main body 201, and the cable 230 is similarly It is preferable that the coating is formed of a material having chemical and chemical resistance.

A sensing unit 240 is provided at the lower end of the main body 201, and this sensing unit 240 is for detecting a leakage state when leaking chemical solution flows into the lower side of the main body 201.

To this end, the sensing unit 240 detects various solutions such as water, chemical solutions, organic solvents, oils, etc. in a contact or non-contact manner, and can sense leakage solutions in a resistance method or conductivity method as a contact method, In the non-contact type, it is possible to detect by a capacitance method, an optical method, or the like.

Therefore, when the sensing unit 240 is configured as a contact type, it has a structure in which the electrode is exposed to the outside of the lower end of the body 201, and when configured as a non-contact type, it may be located close to the inside of the lower end of the body 201, It may have a sensing unit structure of various types.

Of course, when the sensing unit 240 is configured as a contact type, various treatments are applied to electrodes having conductivity in order to have chemical resistance and chemical resistance. As an example, Patent Publication No. 10-2021-0126949 (leak detection sensor Composition for electrode and leak detection sensor using the same), a structure in which an electrode is formed by mixing fluorine resin with conductive graphene, and a metallic electrode as in Patent No. 10-2198819 (Capacitive leak detection sensor) A structure in which a graphene ink layer is applied to a structure, a structure in which a copper layer, a nickel-copper plating layer, and a gold plating layer are sequentially formed on a metallic electrode as in Registered Patent No. 10-2084721 (capacitive leak detection sensor) method may be used.

Inside the main body 201 is mounted on a PCB board to generate a leak detection signal detected by the sensing unit 240, to turn on the display unit 220 by the leak detection signal, and a reset switch 210 A circuit unit 250 is provided to generate an alarm release signal in response to a signal input therefrom.

The circuit unit 250 turns on the green LED 221 when no leakage is detected by the sensing unit 240 to indicate normal operation, and turns on the red LED 222 when leakage is detected to indicate the leakage state. At the same time, the leakage detection signal is transmitted to the field controller 300 through the cable 230.

Thereafter, when an input of the reset switch 210 is generated from the manager, the red LED 222 is turned off and the green LED 221 is turned on to restore the alarm state, and the alarm release signal through the cable 230 will send

Therefore, the field controller 300 generates a visual and audible alarm signal by the leak detection signal transmitted from the leak detection sensor 200 to quickly and accurately recognize that a leak has occurred to nearby managers.

The field controller 300 is installed around the site where the leak detection sensor 200 is installed, and a plurality of leak detection sensors 200 are connected, and generates a leak alarm directly at the leak site, as well as to the leak alarm. By transmitting the signal to the remote control panel 400, the remote manager is notified.

When the manager recognizes such a leak alarm, dispatches to the leak site, takes on-site measures according to the leak, and then directly inputs the reset switch 210 provided in the corresponding leak detection sensor 200, the corresponding leak detection sensor 200 The circuit unit 250 turns off the red LED 222 and turns on the green LED 221 by the recovery signal for canceling the alarm to restore the alarm state, and sends the alarm release signal through the cable 230. By transmitting, the alarms of the field controller 300 and the control panel 400 are finally released and restored.

In the above, the leakage detection sensor 200 of the present invention has described the structure of transmitting the leakage detection signal by wire through the cable 230, but when the circuit unit 250 is provided with a wireless communication unit, the field controller ( 300), the leak detection signal and the alarm release signal may be transmitted, or the leak detection signal and the alarm release signal may be directly transmitted to the remote control panel 400.

That is, when the field controller 300 is provided, the leak detection sensor 200 and the field controller 300 can be connected wirelessly, and the field controller 300 and the control panel 400 can also be connected wirelessly.

In addition, in an environment where the on-site controller 300 is not necessary, the leak detection sensor 200 and the remote control panel 400 can have a structure in which they are directly connected to a wireless environment.

Table 1 summarizes the operating state of the display unit 220 according to the above alarm generation process and alarm recovery process.

Motion FLOW

green LED
red LED
Normal operation

O
X
leakage

leak detection

X
O
Field controller alarm

X
O
Transmission of leak alarm to control panel

X
O
Alarm on the control panel

X
O
Leakage action by manager

X
O
Reset switch ON by administrator

O
X
Send alarm release signal to field controller

O
X
Alarm release signal transmission to the control panel

O
X

Having described specific parts of the present invention in detail above, it is clear to those skilled in the art that these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby. something to do.

Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

200: leak detection sensor
201: body
210: reset switch
220: display unit
221: green LED
222: red LED
230: cable
240: sensing unit
250: circuit part
300: field controller
400: control panel

Claims (3)

delete It has a body with chemical resistance and chemical resistance, is installed at the leakage site to detect leakage, visually displays the leakage detection state, and is provided with a reset switch for disabling the alarm, the reset switch being located at the upper end of the main body. A leak detection sensor composed of a capacitive switch located inside;
A plurality of the leak detection sensors are connected, receive a leak detection signal from each leak detection sensor, generate a visual and audible leak alarm, output a leak detection signal to the control panel, and generate an alarm when an input from the reset switch occurs. a field controller releasing the alarm and transmitting an alarm release signal to the control panel;
The control panel generates an alarm when a leakage detection signal is transmitted from the field controller and cancels the alarm by the alarm release signal;
Leakage alarm recovery system, characterized in that configured to release the alarm of the field controller and the control panel when a reset switch is input after the field action of the leak detection sensor by a manager. delete

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