KR20240020443A - Apparatus for controlling the power of the heat wire and remote monitoring system using the same - Google Patents

Abstract

The present invention relates to a power control device for a heating wire. In particular, the main heating wire and the auxiliary heating wire are installed side by side to prevent freezing inside the pipe, and indicate whether power is normally supplied to the main heating wire and supply power to the main heating wire. In this abnormal case, it is related to a power control device for a heating wire for pipe freeze prevention that not only notifies a wireless alarm to a remote control panel but also supplies power to an auxiliary heating wire.
For this purpose, the present invention includes a switching unit that selectively supplies power to the main heating wire and auxiliary heating wire installed side by side in the pipe; a temperature setting unit that sets an outdoor temperature for supplying power to the main heating element; A temperature sensor that detects the outside temperature; A first current sensor and a second current sensor respectively detecting current of the power supplied to the main heating wire and the auxiliary heating wire; By comparing the outside temperature detected by the temperature sensor with the value set by the temperature setting unit, power supply to the main heating wire is determined, and the main heating wire power indicator light is controlled according to the detection state of the first current sensor, and the auxiliary A controller that controls the switching unit to switch power supply to a hot wire and controls an auxiliary hot wire power indicator according to the detection state of the second current sensor; It consists of a main heating wire power indicator light and an auxiliary heating wire power indicator light that are turned on under the control of the controller.

Description

Power control device for heating wire to prevent piping from freezing and remote monitoring system using the same {Apparatus for controlling the power of the heat wire and remote monitoring system using the same}

The present invention relates to a power control device for a heating wire and a remote monitoring system using the same. In particular, the main heating wire and the auxiliary heating wire are installed side by side to prevent freezing inside the pipe, and indicate whether power is normally supplied to the main heating wire. In addition, when the power supply to the main heating wire is abnormal, the present invention relates to a power control device for heating wires for preventing freezing of pipes that not only notifies a wireless alarm to a remote control panel but also supplies power to an auxiliary heating wire, and a remote monitoring system using the same.

In winter, the fluid flowing through pipes freezes, and when it freezes, its volume increases, which often causes pipes to break because they cannot withstand the increased volume of fluid.

In order to prevent such pipes from freezing, a freeze prevention device has been proposed that prevents the fluid in the pipe from freezing due to the heat generated by the hot wire by directly inserting the heating wire into the pipe or wrapping it around the outside of the pipe.

In addition, a controller is used to control the power supply to the heating wire. As an example, in Registered Patent No. 10-2074198 (freezing prevention heating wire device for pipes applying power conversion wireless control technology), a fluid pipe with a heating wire wrapped around the outside is used. A structure was proposed in which a pipe section management unit equipped with a temperature sensor, a hot wire operating unit, and a wireless communication unit was installed in each set section.

In this structure, the temperature sensor measures the outside temperature or the temperature of the fluid pipe in the set section, wirelessly transmits this to the heating wire control management unit through the wireless communication unit, and the heating wire operating unit receives the resistance value detected from the temperature sensor and the set resistance value. It is configured to turn on/off the power supply to the heating wire.

In other words, if the temperature detected in a specific section is high or low, it has a structure that turns on/off the power supply to the heating wire accordingly, thereby supplying power to the heating wire wrapped around the outside of the fluid pipe in a specific section where the temperature is low. This is to prevent freezing.

However, this prior art is a technology that detects the temperature of a specific section of the fluid pipe or the outside temperature to determine whether or not power is supplied to the heating wire. It has a structure that can immediately check if the heating wire is disconnected or power is not supplied for other reasons. It's not.

Therefore, despite the operation of supplying power to the heating wire due to the low outside temperature, there is a problem in that when normal power is not supplied due to a problem with the heating wire, the fluid in the fluid pipe freezes and freezes occur.

<Prior art literature>

1. Registered Patent No. 10-2074198

(Freeze prevention heating device for piping using power conversion wireless control technology)

In order to solve this conventional problem, the present invention installs a main heating wire and an auxiliary heating wire side by side inside the pipe, and installs a current sensor on the main heating wire to display the current flow status to immediately check the power supply status to the main heating wire. When power is not supplied to the main heating wire, power is supplied to the auxiliary heating wire to ensure continuous freeze prevention. In addition, an alarm about abnormalities is sent to a remote control panel, and The purpose is to provide a power control device for heating wires for pipe freeze prevention that can supply power to auxiliary heating wires by a control signal from , and a remote monitoring system using the same.

In order to achieve the above object, the power control device for the heating wire for preventing pipe freezes according to the present invention is,

A switching unit that selectively supplies power to the main heating wire and auxiliary heating wire installed side by side in the pipe;

a temperature setting unit that sets an outdoor temperature for supplying power to the main heating element; A temperature sensor that detects the outside temperature;

a first current sensor and a second current sensor respectively detecting current of power supplied to the main heating wire and the auxiliary heating wire;

Power supply to the main heating element is determined by comparing the outside temperature detected by the temperature sensor with the value set by the temperature setting unit, and the main heating element power indicator light is controlled according to the detection state of the first current sensor, and the auxiliary heating element is connected to the auxiliary heating element. A controller that controls the switching unit to switch the power supply and controls the auxiliary heating wire power indicator according to the detection state of the second current sensor;

It is characterized in that it consists of a main heating wire power indicator light and an auxiliary heating wire power indicator light that are turned on under the control of the controller.

In addition, the remote monitoring system using the power control device of the heating wire for preventing pipe freezes according to the present invention,

A switching unit that selectively supplies power to the main heating wire and auxiliary heating wire installed side by side in the pipe;

a temperature setting unit that sets an outdoor temperature for supplying power to the main heating element; A temperature sensor that detects the outside temperature;

a first current sensor and a second current sensor respectively detecting current of power supplied to the main heating wire and the auxiliary heating wire;

Power supply to the main heating element is determined by comparing the outside temperature detected by the temperature sensor with the value set by the temperature setting unit, and the main heating element power indicator light is controlled according to the detection state of the first current sensor, and the auxiliary heating element is connected to the auxiliary heating element. A controller that controls the switching unit to switch the power supply and controls the auxiliary heating wire power indicator according to the detection state of the second current sensor;

The power control device for the heating wire for preventing pipe freezes is composed of a main heating wire power indicator light and an auxiliary heating wire power indicator light that are turned on under the control of the controller,

If there is no input from the first current sensor while power is supplied to the main heating wire, the controller transmits an alarm signal to a remote remote control panel through a communication unit, and the remote control panel displays a visible signal by the transmitted alarm signal. Alternatively, an auditory alarm is generated and a control signal is transmitted to the power control device of the pipe freeze prevention heating wire,

The controller controls the switching unit to supply power to the auxiliary heating wire and then transmits the detection status of the second current sensor to the remote control panel.

According to the present invention configured as described above, when power is supplied to the main heating wire installed inside the pipe, the presence or absence of normal power supply is indicated by the current value detected by the current detection sensor, and at the same time, the presence of power is abnormally supplied to the main heating wire. In the case where power is not supplied, it has the advantage of enabling continuous freeze prevention operation by supplying power to the auxiliary heating wire installed in parallel with the main heating wire.

Figure 1 is a diagram showing the external structure of a power control device for a heating wire for preventing pipe freezes according to the present invention.
Figure 2 is a diagram showing the present invention applied to supply power to a heating wire installed in a pipe.
Figure 3 is a diagram showing the structure of the current sensor and the heating wire power indicator light installed on the heating wire.
Figure 4 is a block diagram of a power control device for a heating wire for preventing pipe freezes and a remote monitoring system using the same according to the present invention.

The above-mentioned objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art 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 known techniques 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 are general terms that are currently widely used as much as possible while considering the function in the present invention, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc.

In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the relevant invention.

Therefore, the terms 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 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 illustrated below may be modified into various other forms, and the scope of the present invention is not limited to the embodiments detailed below.

Examples of the present invention are provided to more completely explain the present invention to those skilled in the art.

Figure 1 is a diagram showing the external structure of the power control device for the heating wire for preventing freezing of pipes according to the present invention, Figure 2 is a diagram showing the present invention applied to supply power to the heating wire installed in the pipe, and Figure 3 is a diagram showing the heating wire This diagram shows the structure of the current sensor and heated power indicator light installed in.

And, Figure 4 is a block diagram of a power control device for a heating wire for preventing pipe freezes and a remote monitoring system using the same according to the present invention.

As shown in Figure 1, the power control device 200 of the heating wire for preventing freezing of pipes of the present invention has a temperature sensor indicator light 240 and a power indicator light 240 installed on both sides of the housing 210, respectively. , Additionally, an external power line 100 is introduced through one side.

In addition, the front part is provided with a dial-shaped temperature setting unit 220 that selects the temperature for supplying power to a pair of heating wires 400 and 410, that is, the main heating wire 400 and the auxiliary heating wire 410, The upper side of the temperature setting unit 220 is provided with a main heating wire power indicator light 260 and an auxiliary heating wire power indicator lamp 261 to indicate whether power is being supplied to the main heating wire 400 and the auxiliary heating wire 410. It is done.

In addition, on the lower side of the housing 210, one side of the main heating wire 400 and the auxiliary heating wire 410 installed side by side inside the pipe 500 as shown in Figure 2 is drawn out to the outside, and a The power control device 200 of the heating wire for preventing pipe freezing of the invention is connected to control the power supply to the main heating wire 400 and the auxiliary heating wire 410.

Accordingly, one end of the main heating wire 400 and the auxiliary heating wire 410 are inserted into the lower side of the housing 210, and a temperature sensor 230 is installed to detect the temperature of the outside air.

The heating wire power indicators 260 and 261 indicate whether the power supplied through the power line 100 is normally supplied to the main heating wire 400 and the auxiliary heating wire 410 at a temperature below the temperature set by the temperature setting unit 220. As shown in Figure 3, the first current sensor 270 is mounted on the main heating wire 400 inserted into the housing 210, and the second current sensor 271 is installed on the auxiliary heating wire 410. is installed, so that when power is supplied to the main heating wire 400, the first current sensor 270 detects this, and when power is supplied to the auxiliary heating wire 410, the second current sensor (271) detects this, and as a result, the heated power indicator lights (260, 261) turn on.

Therefore, by visually checking the lighting status of the heating power indicator lights 260 and 261, the manager knows that power is being normally supplied to the main heating wire 400 or the auxiliary heating wire 410. When the supply is interrupted, the main heating wire power indicator lamp 260 turns off, indicating that the power supply to the main heating wire 400 has been stopped.

In addition, if power is being supplied to the auxiliary heating wire 410 instead of the main heating wire 400, the auxiliary heating wire indicator power lamp 261 lights up, indicating that power is being supplied to the auxiliary heating wire 410. will be.

When the hot wire power indicators 260 and 261 are turned on, the outdoor temperature value detected by the temperature sensor 230 is lower than the temperature value set by the temperature setting unit 220, and the power line ( The power supplied through 100) is supplied to the main heating wire 400 or the auxiliary heating wire 410, so that the current sensors 270 and 271 detect the flow of current.

Conversely, when the main heating wire power indicator light 260 is turned off, the outside temperature value is higher than the set temperature value and the power supplied to the main heating wire 400 is cut off to reduce power consumption, and the main heating wire 400 is turned off. If power is not supplied normally due to disconnection or other causes, the first current sensor 270 cannot detect the flow of current, and thus the light is turned off.

Likewise, the auxiliary heating wire 410, the second current sensor 271, and the auxiliary heating wire power indicator light 261 operate in the same manner.

In the present invention, as shown in Figure 2, the main heating wire 400 and the auxiliary heating wire 410 are installed side by side as a pair inside the pipe, which is used when power is not supplied due to a problem with the main heating wire 400. In order to prevent the heater from freezing, the auxiliary heating wires (410) are laid side by side, and the power supplied to the main heating wire (400) is transferred and supplied to the auxiliary heating wire (410), thereby continuing the heating until appropriate measures are taken by the manager. Ensure that freeze prevention is achieved.

Therefore, when the controller 280 detects the outside temperature value through the temperature sensor 230, it turns on the temperature sensor indicator light 240 to visually indicate that the temperature sensor 230 is operating normally. Additionally, if power is normally supplied from the outside through the power line 100, the power indicator light 250 turns on.

In addition, the temperature value set through the temperature setting unit 220 is compared with the outside temperature value input from the temperature sensor 230, and if the outside temperature value is lower than the set temperature value, the heating wire power supply unit 290 is controlled to maintain the main temperature. Power supplied from the power line 100 is supplied to the heating wire 400.

In addition, when the controller 280 controls the heating wire power supply unit 290 to supply power to the main heating wire 400, the heating wire power indicator light 260 is turned on by the output from the first current sensor 270. or turns off, there is an output from the first current sensor 270, and the main heating wire power indicator light 260 lights up to indicate that power is normally supplied to the main heating wire 400, and conversely, the first current sensor 270 If there is no output from (270), the main heating power indicator light (260) is turned off to indicate that a power supply problem has occurred.

At the same time, the controller 280 controls the switching unit 310 so that the power supplied to the main heating wire 400 is supplied to the auxiliary heating wire 410, and at the same time, by the output from the second current sensor 271 The auxiliary heating power indicator light (261) turns on.

Of course, when no output is generated from the second current sensor 271, the auxiliary heating wire power indicator light 261 is also turned off to indicate that power is not being supplied to both the main heating wire 400 and the auxiliary heating wire 410. do.

Meanwhile, the controller 280 transmits an alarm signal indicating that power is not being supplied to the main heating wire 400 to the remote control panel 600 through the communication unit 300. This communication unit 300 is connected to a wired communication network. Alternatively, you can use a mobile communication network, wireless Internet, etc.

Accordingly, the remote control panel 600 receives an alarm signal through the communication unit 610, and the control unit 620 controls the alarm generation unit 640 to generate a visible or audible alarm signal.

When the manager checks this alarm and inputs a control signal to switch the power supply to the auxiliary heating wire 410 through the mode input unit 630, the control unit 620 accordingly transmits the power to the heating wire for preventing freezing of the pipe through the communication unit. It is transmitted to the control device 200.

Accordingly, the controller 280 of the power control device 200 for the heating wire for preventing freezing of pipes controls the switching unit 310 by the transmitted control signal to supply power to the auxiliary heating wire 410, and also controls the second The output from the current sensor 271 is checked.

In other words, if no output is generated from the second current sensor 271 despite supplying power to the auxiliary heating element 410, this means that a problem has occurred in the auxiliary heating element 410, and an alarm signal for this is sent to the communication unit. By transmitting it to the remote control panel (600) through (300), more rapid action can be taken.

Of course, even when an output is generated from the second current sensor 271, a signal indicating that power is normally supplied to the auxiliary heating element 410 is transmitted to the remote control panel 600.

Ultimately, the present invention provides power to be immediately supplied through the auxiliary heating wire 410 when the power supply to the main heating element 400 is interrupted, thereby heating the auxiliary heating element 410 while taking action on the main heating element 400. ) to ensure that the freeze prevention operation can continue.

As the specific parts of the present invention have been described in detail above, it is clear to those skilled in the art that these specific techniques are merely preferred embodiments and do not limit the scope of the present invention. something to do.

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

100: power line
200: Power control device for heating wire to prevent pipe freezes
210: housing
220: Temperature setting unit
230: Temperature sensor
240: Temperature sensor indicator light
250: Power indicator light
260,261: Heated power indicator light
270,271: Current sensor
280: Controller
290: Heated wire power supply unit
300: Department of Communications
400: heated wire
500: Piping
600: remote control panel

Claims (3)

A switching unit that selectively supplies power to the main heating wire and auxiliary heating wire installed side by side in the pipe;
a temperature setting unit that sets an outdoor temperature for supplying power to the main heating element; A temperature sensor that detects the outside temperature;
a first current sensor and a second current sensor respectively detecting current of power supplied to the main heating wire and the auxiliary heating wire;
Power supply to the main heating element is determined by comparing the outside temperature detected by the temperature sensor with the value set by the temperature setting unit, and the main heating element power indicator light is controlled according to the detection state of the first current sensor, and the auxiliary heating element is connected to the auxiliary heating element. A controller that controls the switching unit to switch the power supply and controls the auxiliary heating wire power indicator according to the detection state of the second current sensor;
A power control device for a heating wire for preventing freezing of pipes, characterized in that it consists of a main heating wire power indicator light and an auxiliary heating wire power indicator light that are turned on under the control of the controller.
A switching unit that selectively supplies power to the main heating wire and auxiliary heating wire installed side by side in the pipe;
a temperature setting unit that sets an outdoor temperature for supplying power to the main heating element;
A temperature sensor that detects the outside temperature;
a first current sensor and a second current sensor respectively detecting current of power supplied to the main heating wire and the auxiliary heating wire;
Power supply to the main heating element is determined by comparing the outside temperature detected by the temperature sensor with the value set by the temperature setting unit, and the main heating element power indicator light is controlled according to the detection state of the first current sensor, and the auxiliary heating element is connected to the auxiliary heating element. A controller that controls the switching unit to switch the power supply and controls the auxiliary heating wire power indicator according to the detection state of the second current sensor;
The power control device for the heating wire for preventing pipe freezes is comprised of a main heating wire power indicator light and an auxiliary heating wire power indicator light that are turned on under the control of the controller,
If there is no input from the first current sensor while power is supplied to the main heating wire, the controller transmits an alarm signal to a remote remote control panel through a communication unit, and the remote control panel displays a visible signal by the transmitted alarm signal. Or, a remote monitoring system using a power control device for a heat wire for preventing freeze and burst pipes, characterized in that it generates an auditory alarm and transmits a control signal to the power control device for the heat wire for freeze prevention for the pipe.
The power source of the pipe freeze prevention heating wire according to claim 2, wherein the controller controls the switching unit to supply power to the auxiliary heating wire and then transmits the detection state of the second current sensor to the remote control panel. Remote monitoring system using a control device.