KR200405064Y1 - Flame detecting system of boiler ignitor - Google Patents

Abstract

The present invention is to provide a boiler ignition apparatus flame detection system for detecting the flame by detecting the electromagnetic radiation wave emitted from the flame without the electrode contact directly to the flame of the boiler.

To this end, the boiler ignition device flame detection system of the present invention is connected to the end of the stainless steel straight pipe inserted into the ignition device of the boiler, and detects the electromagnetic radiation emitted from the flame by the semiconductor sensing sensor therein, and the detected electromagnetic radiation. A flame detector for converting a wave into an electrical signal by an internal signal converter; A flame detection amplifier connected to the flame detection unit for amplifying a signal transmitted from the flame detection unit in response to the flame detection state, converting the signal from the analog voltage into a digital logic signal, and outputting an output signal for controlling an external circuit; It is connected to the flame detection amplification unit and comprises a Termiplex tuning device for inputting the measurement and data of the flame detection amplification unit to the flame detection amplification unit.

Description

Flame detecting system of boiler ignitor

1 is a block diagram showing a flame detection system of the boiler ignition device according to the present invention,

2 is an equivalent diagram of a detection circuit of a flame detector of a conventional boiler ignition device.

<Description of the symbols for the main parts of the drawings>

1 --- boiler,

2 --- boiler igniter (Ignitor),

3 --- stainless steel straight pipe,

5 --- Flame detector head,

6 --- Flame detector amplifier,

7 --- Termiflex tuning device,

10 --- electrode,

20 --- burners,

30 --- support rods.

The present invention relates to a flame detection system of an improved boiler ignition device, and in particular, a boiler ignition device flame for detecting a flame by detecting the electromagnetic radiation emitted from the flame without directly contacting the electrode with the flame of the boiler. It relates to a detection system.

In general, a boiler igniter is a device for igniting the igniter oil by an electric spark generated from a transformer, and at present, each boiler igniter in Korea is installed for automatic ignition of the main burner at the initial ignition and output deceleration.

The flame detector for the boiler ignition device is a direct detector, the flame is detected in direct contact with the electrode when the boiler ignition.

The flame detector electrode used in the current boiler ignition device as described above is composed of an impedance bridge circuit, and as shown in FIG. 2, when the flame detector electrode contacts the flame, the electricity between the electrode 10 and the burner 20 is reduced. Resistance value (Rf: Impedance) changes, and it is comprised so that this change can be detected directly.

For example, a flame detection rod of a 288.6 cm ignition device is inserted into the main body of the boiler igniter, and a flame detector head is connected to the outside to install and maintain the flame detector head.

However, the conventional direct contact ignition device as described above has a problem such as a failure of the electrode of the flame detector of the ignition device, such as the delay of the start time of automatic ignition and fire extinguishing of the main burner according to the combustion state detection failure during ignition.

In addition, if the temperature in the furnace is increased, the flame is automatically detected so that it cannot be used in places where a large number of burners are installed, and the electrode is directly exposed to the flame, so it is likely to deteriorate, and it can be burned out when the ignition device moves forward or backward There are many.

In other words, the electrode of the conventional ignition flame detector is frequently malfunctioned due to the aging of the equipment according to the long-term use, it takes a lot of maintenance time for the maintenance of the combustion equipment safety, it is difficult to replace and repair due to the discontinued product of the manufacturer In reality, there is a problem in that the detection rate is very high due to deterioration due to ambient flame and high temperature effects.

The present invention has been made in view of the above, and provides a flame detector of the boiler ignition device that can improve the reliability of the equipment by eliminating the increase / deceleration time delay factor caused by the automatic ignition due to the flame detection failure of the ignition device. For the purpose of

The boiler ignition device flame detection system of the present invention for achieving the object as described above, is connected to the end of the stainless straight pipe inserted into the ignition device of the boiler to detect the electromagnetic radiation emitted from the flame by the semiconductor sensor inside the A flame detection unit converting the detected electromagnetic radiation wave into an electrical signal by an internal signal conversion device; A flame detection amplifier connected to the flame detection unit for amplifying a signal transmitted from the flame detection unit in response to the flame detection state, converting the signal from the analog voltage into a digital logic signal, and outputting an output signal for controlling an external circuit; It is connected to the flame detection amplification unit and comprises a Termiplex tuning device for inputting the measurement and data of the flame detection amplification unit to the flame detection amplification unit.

(Example)

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

1 shows a flame detection system of a boiler ignition device according to the present invention, comprising a flame detection unit 5, a flame detection amplification unit 6 and a termiplex tuning device 7. As shown in FIG.

As shown in FIG. 1, a 3/4 inch stainless straight tube 3 is inserted into the ignition device 2 of the boiler 1, and at the end of the stainless straight tube 3, an electromagnetic radiation sensing semiconductor sensor (not shown) is provided. The mounted flame detection unit 5 is connected.

Accordingly, the flame detection unit 5 configured as described above detects electromagnetic radiation waves (eg, infrared rays, ultraviolet rays, visible rays) emitted from the flame by the semiconductor detection sensor, and detects the detected electromagnetic radiation waves by the flame detection unit 5. ) Converted into an electrical signal by an internal signal converter (not shown), and then transmitted to the flame detection amplifier 6.

The flame detection amplifier 6 connected to the flame detector 5 generates an operation source signal and detects and processes the received signal. The flame detection amplifier 5 is transmitted from the flame detector 5 in response to the flame detection state. Amplifies the signal and converts it into an analog logic digital signal to output an output signal for controlling an external circuit.

In addition, the flame detection amplifier 6 is connected to a termiplex tuning device 7 for inputting measurement and data of the flame detection amplifier 6.

On the other hand, in the present embodiment, only one flame detection amplifier 6 is shown on the drawing for ease of explanation, but up to 12 flame detection amplifiers 6 may be installed, and the termiplex tuning device 7 includes the flame detection amplifier 6 Irrespective of the quantity of), the measurement and data of each of the plurality of flame detection amplifiers 6 can be input with only one unit.

As a result, the flame detection state in which the flame detection amplification unit 6 is transmitted from the flame detection unit 5 operates in response to the operating characteristics of the radiation energy generated in the primary combustion region of the flame by the flame detection system as described above. By generating the output to control the external circuit in response to the individual, it is possible to detect and adjust the individual flame, can be used irrespective of the fuel, and can be alerted to the outside when burned out.

As described above, according to the present invention, it is possible to determine the flame detection even when the boiler ignition device flame detector is in the field of maintenance, and the maintenance time of the existing flame detector can be shortened during the site maintenance.

In addition, it is possible to clear the ignition device abnormal alarm caused by the flame detector ground, etc., and to improve the reliability of the burner system by reducing the trouble of the auto-igniter.

Claims (1)

In the boiler ignition device flame detection system for detecting the flame by detecting the electromagnetic radiation wave emitted from the flame by the semiconductor sensor, It is connected to the end of the stainless straight pipe (3) inserted into the ignition device (2) of the boiler (1) to detect the electromagnetic radiation emitted from the flame by the semiconductor sensor inside, and the detected electromagnetic radiation wave A flame detection unit 5 for converting the signal into an electrical signal by a signal converter; Connected to the flame detection unit 5, amplifies a signal transmitted from the flame detection unit 5 in response to the flame detection state, and converts it into an analog logic signal to a digital logic signal to output an output signal for controlling an external circuit. Flame detection and amplification section 6 to be performed, and It is connected to the flame detection amplifier 6, characterized in that it comprises a terminator tuning device 7 for inputting the measurement and data of the flame detection amplifier 6 to the flame detection amplifier 6 Boiler ignition flame detection system.

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