KR101907954B1 - Electronic water level display apparatus for a boiler - Google Patents

Abstract

The present invention relates to an electronic boiler water level display apparatus, displaying a water level of a boiler through flashing of a plurality of LEDs, arranged at a certain height interval, so as to increase visibility. Moreover, the apparatus comprises a main body, a plurality of luminous elements, a plurality of light receiving elements, a plurality of LEDs, and a control unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic water level display apparatus for a boiler,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for detecting and displaying the level of an industrial boiler (associated type, water tube type) and the like, and more particularly to an electronic boiler level display device.

Korean Patent Laid-Open No. 10-2012-0024035 (2012. 03. 14), filed by the present applicant of the present invention, detects the level inside the boiler and automatically supplies water when the boiler is short of water, The boiler is provided with a water level detection system that is always kept constant.

However, since the water level sensor for detecting the water level in the boiler may fail, or when the water inside the boiler is insufficient, the water level in the boiler may not be maintained constant due to a pump failure to supply water automatically. The water level pipe having the water level equal to the water level stored in the boiler is installed outside the boiler so that the water level can be visually confirmed.

However, in the case of a boiler room where a boiler is installed, it is difficult to visually check the water level stored in the water level pipe when there is no lighting or the lighting condition is poor. If the person does not have basic knowledge of the boiler, Since the water level of the water stored in the water level pipe can not be confirmed, there is a demand for a boiler water level indicating technology having a higher visibility.

Korean Patent Publication No. 10-2012-0024035 (March 03, 2012)

It is an object of the present invention to provide an electronic boiler level display device capable of improving visibility by displaying the level of a boiler through blinking of a plurality of LEDs arranged at specific height intervals.

It is still another object of the present invention to provide an electronic boiler water level display device capable of further improving visibility by lighting a plurality of LEDs arranged at specific height intervals according to the water level, will be.

According to one aspect of the present invention, an electronic boiler water level indicator is arranged at a certain height interval along a water level tube where water having a water level equal to the water level stored in the boiler is stored, A plurality of light emitting elements for emitting each light emitting element; A plurality of light receiving elements arranged at the same height intervals as the plurality of light emitting elements arranged at specific height intervals along the water level tube and each receiving light emitted by each of the light emitting elements; A plurality of LEDs arranged at the same height intervals as the plurality of light emitting element / light receiving element pairs arranged at specific height intervals along the water level tube, and indicating whether water is stored in the water level tube at each light emitting element / light receiving element pair position; Detecting whether or not water is stored in the respective positions of the light emitting element / light receiving element pairs in the water level tube according to the transmitted / received light ratio of the light received by the respective light receiving elements, and detecting each of the detected light emitting element / And a control unit for controlling the lighting of the LEDs according to the determined water level; And the like.

According to a further aspect of the present invention, the control section is characterized in that the LEDs at the position of the detected light emitting element / light receiving element pairs are lighted when water is stored.

According to a further aspect of the present invention, when the determined level exceeds the first danger level, the control unit turns on the LEDs with the first color.

According to a further aspect of the present invention, when the determined level is below the first hazard level and exceeds the second danger level, the control unit illuminates the LEDs with a second color by changing the number at a specific time interval do.

According to a further aspect of the present invention, the controller turns on the LEDs with the second color when the determined water level is below the second water level and exceeds the third water level.

According to a further aspect of the present invention, when the determined level of the water level is equal to or lower than the third danger level, the control unit controls the LEDs to be turned on with a second color and to output an alarm.

According to a further aspect of the present invention, the electronic boiler water level display device includes a buzzer for outputting an alarm for underwater level warning; And further comprising:

According to a further aspect of the present invention, the control unit is configured to cause the LEDs illuminated in the second color to blink at predetermined time intervals.

According to a further aspect of the present invention, the electronic boiler water level display device has a plurality of LEDs arranged at a predetermined height interval on a front surface thereof, a water level tube receiving groove into which the water level tube is inserted is formed, A plurality of light emitting devices and light receiving devices are arranged at specific height intervals, and a micro control unit (MCU), which operates as the control unit, is mounted; And further comprising:

According to a further aspect of the present invention, the main body is cut off with reference to the center of the water level tube storage groove and separated from the front body and the back body, and the water level tube is stored in the water level tube storage groove between the separated front body and the back body. And a joining member for joining the front body and the rear face body in a state where the front body and the rear body are joined together.

The present invention has the effect of improving the visibility by displaying the level of the boiler through the blinking of a plurality of LEDs arranged at specific height intervals.

In addition, the present invention has the effect of further improving the visibility by lighting a plurality of LEDs arranged at specific height intervals according to the level of the water level, or by controlling the blink cycle.

In addition, although the present invention is carried out every year in the country, the present invention has an effect of improving energy efficiency and saving fuel by preventing an accident caused by an abnormality such as a boiler level which is a major cause of industrial accidents, and by controlling the water level accurately.

1 is a block diagram showing the configuration of an embodiment of an electronic boiler water level display apparatus according to the present invention.
2 is a view showing an example of LED display control mode according to a level of an electronic boiler water level display apparatus according to the present invention.
3 is a perspective view showing a configuration of an embodiment of an electronic boiler water level display device according to the present invention.
4 is a circuit diagram showing the configuration of an embodiment of an electronic boiler water level display device according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The terms used throughout the specification of the present invention have been defined in consideration of the functions of the embodiments of the present invention and can be sufficiently modified according to the intentions and customs of the user or operator. It should be based on the contents of.

1 is a block diagram showing the configuration of an embodiment of an electronic boiler water level display apparatus according to the present invention. As shown in FIG. 1, a water level pipe 20 for storing water having a water level equal to the water level stored in the boiler is connected to the boiler 10, and the water level pipe 20 is connected to an electronic boiler water level display device (100).

The boiler water level indicator 100 according to the present invention includes a plurality of light emitting devices 110, a plurality of light receiving devices 120, a plurality of LEDs 130, and a controller 140 .

The plurality of light emitting devices 110 are arranged at specific height intervals along a water level tube 20 in which water having a water level equal to the water level stored in the boiler 10 is stored and emits light to the water level tube 20 . For example, a laser diode (LD) can be used as the light emitting element 110.

The plurality of light receiving elements 120 are arranged at the same height intervals as the plurality of light emitting elements 110 arranged at specific height intervals along the water level tube 20, Respectively. For example, the photodiode PD can be used as the light receiving element 120.

The plurality of LEDs 130 are arranged at the same height intervals as a plurality of pairs of the light emitting devices 110 and the light receiving devices 120 arranged at specific height intervals along the water level tube 20, And indicates whether or not water is stored in the water level tube at the paired positions of the light receiving element 120.

The controller 140 stores the water at the positions of the pairs of the light emitting element 110 and the light receiving element 120 in the water level tube according to the ratio of transmitted light to transmitted light of the light received by each of the light receiving elements 120 And determines the water level according to whether the water level of each of the detected pairs of the light emitting element and the light receiving element is stored, and controls the lighting of the LEDs 130 according to the determined water level.

At this time, the controller 140 may be configured to display the water level by turning on the LEDs 130 at the positions of the pairs of the light emitting element 110 / the light receiving element 120 detected that water is stored. Meanwhile, the control unit 140 may be configured to light up the LEDs 130 in different colors according to the water level, or to blink the LEDs 130 at predetermined time intervals.

For example, the light emitting device 110 and the light receiving device 120 are symmetrically disposed with respect to the water level pipe 20 so that light emitted from the light emitting device 110 passes through the water level pipe 20, And the control unit 140 may be configured to control the lighting and / or blinking of the LEDs 130 according to the ratio of transmitted light to transmitted light of the received light.

For example, the light emitting element 110 and the light receiving element 120 are provided at different positions on the same side. Light emitted from the light emitting element 110 is reflected by the water level tube 20 and is received by the light receiving element 120 , And the controller 140 controls the lighting and / or blinking of the LEDs 130 according to the ratio of the received light to the received light.

The amount of light emitted from the light emitting element 110 and the amount of light received by the light receiving element 120 are different from each other depending on whether water is stored in the water level tube due to a light refraction phenomenon due to a difference in the medium between the water level tube and the water level or air, That is, a difference in the received light ratio relative to the emission light occurs, and this light amount difference appears as a voltage difference.

Accordingly, the ratio of the transmitted light to the transmitted light of the light emitted from each of the light emitting devices 110 through the control unit 140 and passing through the water level pipe 20 or reflected from the water level pipe 20 is referred to as a transmission light voltage It is possible to detect whether or not water is stored at the positions of the respective pairs of the light emitting element 110 and the light receiving element 120 in the water level tube according to the emitted light contrast ratio.

Then, the control unit 140 determines the water level according to whether water is stored in the respective positions of the light emitting element / light receiving element pairs, and controls lighting / blinking of the LEDs 130 according to the determined water level The water level can be displayed.

According to the present invention, the visibility of the boiler can be improved by blinking a plurality of LEDs arranged at specific height intervals.

Further, the present invention can further improve visibility by lighting a plurality of LEDs arranged at specific height intervals according to the level of the water level, or by controlling the blinking period.

According to a further aspect of the present invention, when the determined level exceeds the first danger level, the controller 140 may be configured to turn on the LEDs 130 in the first color. For example, the first hazard level may be 1/2 of the maximum level that can be stored in the water level tube, and the first color may be green, but is not limited thereto.

According to a further aspect of the present invention, when the determined level of the water level is lower than the first hazard level and exceeds the second danger level, the controller 140 changes the number of the LEDs 130 And can be implemented to be lit in two colors. For example, the second danger level may be 3/8 of the maximum water level that can be stored in the water level tube, the second color may be red, alternately turn on red 4 and red 8 LEDs alternately at 1 second, But it is not limited to this.

For example, to alternately turn on the green and red LEDs, green LEDs and red LED pairs arranged side by side at specific height intervals according to the level, or by adjusting the output wavelength of the LEDs arranged at specific height intervals according to the level Do.

According to a further aspect of the present invention, the controller 140 may be configured to turn on the LEDs 130 in the second color when the determined water level is below the second water level and exceeds the third water level . For example, the third danger level may be 2/8 of the maximum level that can be stored in the water level pipe, but is not limited thereto.

According to a further aspect of the present invention, when the determined level of the water level is equal to or lower than the third danger level, the control unit 140 controls the LEDs 130 to be turned on with a second color, . ≪ / RTI >

In this case, the electronic boiler water level indicator 100 may further include a buzzer 150. The buzzer 150 outputs an alarm for underwater level warning under the control of the control unit 140.

Accordingly, when the determined water level is below the third danger level, the LEDs are turned on with the second color under the control of the controller 140, and an alarm for the water level low warning is output through the buzzer 150, An enemy warning is made.

At this time, the control unit 140 may be configured to blink the LEDs 130 illuminated in the second color at specific time intervals, thereby further improving the visibility of the water level insufficient warning.

2 is a view showing an example of LED display control mode according to a level of an electronic boiler water level display apparatus according to the present invention. As shown in FIG. 2, eight pairs of green LEDs and red LED pairs are arranged at specific height intervals, and the water level is displayed in eight steps.

If the detected water level is the maximum water level (8 levels) that can be stored in the water level tube, eight green LEDs are lit. On the other hand, when the detected water level is 7/8 (7th level) of the maximum water level that can be stored in the water level tube, seven green LEDs except the top LED are lit.

On the other hand, when the detected water level is 6/8 (6th level), which is the maximum water level that can be stored in the water level tube, six green LEDs except the top LED and the LED below it are turned on. On the other hand, if the detected water level is 5/8 of the maximum water level that can be stored in the water level tube, five green LEDs except for the top LED and the two LEDs below the top LED are lit.

If the detected water level is 4/8 (4th step), i.e., 1/2, of the maximum water level that can be stored in the water level tube, there are four red LEDs except the top LED and three LEDs below it, 8 flashes at 1 second intervals. On the other hand, when the detected water level is 3/8 (3 levels) of the maximum water level that can be stored in the water level tube, only the following three red LEDs are lit.

On the other hand, when the detected water level is 2/8 of the maximum water level which can be stored in the water level pipe, the following two red LEDs are turned on and an alarm is output to warn the water level is insufficient. At this time, the following two red LEDs may be flickered at intervals of one second, or two red LEDs and eight red LEDs may be turned on and off at intervals of one second, thereby improving visibility of water level warning.

According to the present invention, the visibility of the boiler can be improved by blinking a plurality of LEDs arranged at specific height intervals.

Further, the present invention can further improve visibility by lighting a plurality of LEDs arranged at specific height intervals according to the level of the water level, or by controlling the blinking period.

3 is a perspective view showing a configuration of an embodiment of an electronic boiler water level display device according to the present invention. As shown in FIG. 3, the electronic boiler water level indicator 100 according to the present invention may further include a main body 160.

In the main body 160, the plurality of LEDs 130 are arranged at a predetermined height interval, and a water level tube receiving groove 161 into which the water level tube is inserted is formed on the front surface of the main body 160, The light emitting devices 110 and the light receiving devices 120 are arranged at specific height intervals and an MCU (Micro Control Unit) operating as the control unit 140 is mounted therein.

At this time, the main body 160 is cut off with reference to the center of the water level tube storage groove and separated from the front body 160a and the back body 160b, and the water level tube storage groove 161 And a joining member 162 for joining the front body and the rear body in a state where the water level tube is housed in the front body. For example, screws and bolts may be used as the engaging member 162 so that the front main body 160a and the back main body 160b can be engaged.

Meanwhile, a transparent panel may be installed on the front surface of the plurality of LEDs 130 arranged at predetermined intervals on the front surface of the main body 160 so that light generated when the plurality of LEDs 130 are lighted can be transmitted through the transparent panel.

4 is a circuit diagram showing the configuration of an embodiment of an electronic boiler water level display device according to the present invention. As shown in FIG. 4, a plurality of laser diodes (LDs) are arranged at specific height intervals along a water level pipe to emit light to the water level tube, and a plurality of laser diodes A plurality of photodiodes (PDs) arranged by the laser diodes (LD) for receiving light passing through a gauge tube or reflected from a gauge tube are driven by an MCU used as a controller, It can be seen that a plurality of LEDs arranged at specific height intervals controlled by the flicker driving are provided according to the detected water level.

Each laser diode (LD) is driven by a laser diode (LD) driving voltage outputted by the MCU to emit light. The light is reflected by the photodiodes (PD) Is received.

Different voltages are applied depending on the amount of light received by each photodiode PD. The MCU compares the receiving voltage according to the driving voltage of the laser diode (LD) and the amount of light received by each photodiode (PD) The water level of the boiler can be displayed by controlling the lighting and blinking of the LEDs, thereby improving the visibility.

In this case, the plurality of LEDs arranged at specific height intervals according to the level may be turned on in different colors or the blinking period may be controlled to further improve the visibility, thereby achieving the object of the present invention described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. .

INDUSTRIAL APPLICABILITY The present invention is industrially applicable in the field of boiler water level detection and display technology and its application technology.

10: Boiler
20: Water level pipe
100: Electronic boiler water level indicator
110: Light emitting element
120: Light receiving element
130: LED
140:
150: buzzer
160:
160a: front body
160b:
161: Water container storage home
162:

Claims (10)

The front and rear main bodies are separated from each other by a front main body and a back main body, respectively, which are cut off with reference to the center of the water level tube receiving groove in which the water level tube is housed. A main body including an engaging member for engaging between the main bodies;
A plurality of light emitting devices arranged at predetermined height intervals along a water level pipe storing water having a water level equal to the water level stored in the boiler, respectively, for emitting light to the water level pipe;
A plurality of light receiving elements arranged at the same height intervals as the plurality of light emitting elements arranged at specific height intervals along the water level tube and each receiving light emitted by each of the light emitting elements;
A plurality of LEDs arranged at the same height intervals as the plurality of light emitting element / light receiving element pairs arranged at specific height intervals along the water level tube, and indicating whether water is stored in the water level tube at each light emitting element / light receiving element pair position;
The position of each of the light emitting element / light receiving element pairs in the water level tube in accordance with the ratio of transmitted light to transmitted light, which is the light amount difference between the light emitted from the light emitting elements caused by the medium difference and the light received from the light receiving elements A control unit for detecting whether or not water is stored in each of the pairs of light emitting devices / light receiving element pairs, determining a water level according to whether water is stored in each of the detected pairs of light emitting devices / light receiving element pairs, and controlling lighting of the LEDs according to the determined water level;
A buzzer for outputting an alarm for warning of low water level;
, ≪ / RTI >
Said body comprising:
The plurality of LEDs are arranged at a predetermined height interval on the front surface of the front body, the plurality of light receiving elements are arranged at predetermined height intervals on the water level tube storage groove on the rear surface of the front body, And a microcomputer unit (MCU) that operates as the control unit is mounted inside the front main body, and a buzzer is installed on the front surface of the front main body, The front body and the rear body are detachably coupled to each other,
The control unit includes:
And controls the audible warning through the buzzer simultaneously with the visual warning through the LED when the water level is judged to be insufficient. The method according to claim 1,
Wherein the control unit comprises:
Water is stored, and the LEDs in the position of the detected light emitting element / light receiving element pairs are turned on. 3. The method of claim 2,
Wherein the control unit comprises:
And when the determined level exceeds the first danger level, the LEDs are turned on in the first color. The method of claim 3,
Wherein the control unit comprises:
And when the determined level is lower than the first danger level and exceeds the second danger level, the LEDs are turned on in a second color by changing the number at a specific time interval. 5. The method of claim 4,
Wherein the control unit comprises:
And when the determined water level is below the second danger level and exceeds the third danger level, the LEDs are turned on with the second color. 5. The method of claim 4,
Wherein the control unit comprises:
And when the determined level is lower than or equal to the third danger level, the LEDs are turned on with a second color and an alarm is output so that the water level is warned. delete The method according to claim 6,
Wherein the control unit comprises:
And the LEDs illuminated in the second color are blinked at specific time intervals. delete delete

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