KR970001936B1 - Flame screen cleaning system for burner - Google Patents

Flame screen cleaning system for burner Download PDF

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Publication number
KR970001936B1
KR970001936B1 KR1019930031930A KR930031930A KR970001936B1 KR 970001936 B1 KR970001936 B1 KR 970001936B1 KR 1019930031930 A KR1019930031930 A KR 1019930031930A KR 930031930 A KR930031930 A KR 930031930A KR 970001936 B1 KR970001936 B1 KR 970001936B1
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South Korea
Prior art keywords
burner
flame
value
salt
local combustion
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KR1019930031930A
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Korean (ko)
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KR950019386A (en
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김태경
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대우전자 주식회사
배순훈
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Priority to KR1019930031930A priority Critical patent/KR970001936B1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/24Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/02Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium

Abstract

The method of removing foreign materials of a flame net in an oil combustor, comprises the steps of: determining whether a flame current value reaches a value causing a local combustion result due to the foreign materials, after ignition; if the value corresponds to the local combustion result value, controlling a blow motor for a predetermined time to blow the foreign materials to the outside; after the predetermined time elapses, detecting the flame current; and if the flame current value corresponds to the local combustion result value, extinguishing the fire of the oil combustor.

Description

석유연소기의 염구망 이물질 제거방법How to get rid of foreign matter in the oil burner

제1도는 본 발명이 적용되는 석유연소기의 제어블럭도.1 is a control block diagram of a petroleum burner to which the present invention is applied.

제2도는 제1도의 주요부분에 대한 상세회로도.2 is a detailed circuit diagram of the main part of FIG.

제3도는 본 발명에 의한 제어 흐름도.3 is a control flowchart according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 마이컴 31 : 블로우모터 구동부10: microcomputer 31: blow motor drive unit

BM : 블로우모터BM: Blow motor

본 발명은 석유연소기(예 : 팬히터, 로타리히터)의 기화기나 염구망에 낀 이물질에 의해 연소상태가 불량 할때 이물질을 제거하여 연소상태를 양호하도록 석유연소기의 염구망 이물질 제거방법 관한 것이다.The present invention relates to a method for removing foreign matters of a salt burner of a petroleum burner to remove the foreign matters when the combustion state is poor due to a foreign matter caught in a vaporizer or a salt net of a petroleum burner (eg, a fan heater and a rotary heater).

종래, 석유연소기의 기화기나 염구망에 불순물을 부착되어 국부적 연소불량이나 연소불꽃이 불량하면 연소에러가 생기게 되었다.[0003] Conventionally, impurities are attached to a vaporizer or a salt network of a petroleum combustor, resulting in a combustion error when a local combustion defect or a combustion flame is poor.

이러한 연소에러를 가중시키는 이유중의 하나는 상기 국부적 이물이나 연소불량이 발생하면 쉽게 제거할 수 있는 기능이 없어 불량발생기 조치가 어려운 문제점이 있었다.One of the reasons for aggravating the combustion error is that there is a problem in that it is difficult to take a defective generator because there is no function that can be easily removed when the local foreign matter or combustion defect occurs.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로, 석유연소기의 버너 염구망 또는 기화기의 이물질로 인한 국부적 연소불량시 이물질을 블로우모터의 적절한 제어로서 외부로 배출(제거)하여 연소상태를 양호하게한 석유연소기의 염구망 이물질 제거방법을 제공하는데에 본 발명의 목적이 있다.The present invention has been made in order to solve the above problems, in case of local combustion failure due to foreign matter of the burner grid or vaporizer of the petroleum burner to discharge (removed) foreign matter to the outside as appropriate control of the blow motor to ensure a good combustion state. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for removing foreign matter on a network of a petroleum burner.

이와같이 목적을 달성하기 위한 본 발명은 석유 연소기의 점화후 염전류가 이 물질에 의한 국부적 연소불량으로 기인되는 값인가를 판단하는 과정과, 국부적 연소불량시 블로우모터를 3초간 정기, 5초간 운전을 30초 동안 제어하여 이물질을 외부로 배출시키는 과정과, 상기 소정시간 경과후 염전류를 검출하여 이때에도 국부적 연소불량에 따른 염전류 값이 검출되면 석유연소기를 소화시키는 과정을 구비하여 된 것이다.Thus, the present invention for achieving the object is a process of determining whether the salt current after ignition of the petroleum combustor is a value caused by the local combustion failure by this material, and during the local combustion failure, the blow motor is operated for 3 seconds and 5 seconds It is equipped with a process of discharging the foreign matter to the outside by controlling for 30 seconds, and the salt current is detected after the predetermined time elapses, and even if the salt current value according to the local combustion failure is detected, the process of extinguishing the petroleum combustor.

이하, 첨부된 도면에 의거하여 본 발명은 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

제1도는 본 발명이 적용되는 석유연소기의 제어블럭도를 나타낸 것으로, 석유연소기(로타리히터) 제어의 중앙신호처리원인 원칩 마이컴(10)과, 상기 마이컴(10)과 그 주변회로에 소정동작전원을 공급하는 전원공급부(20)와, 송풍팬을 구동하는 송풍팬 구동부(21)와, 전원주파수에 상응하는 펄스신호를 생성하여 상기 마이컴(10)에 입력하여 주는 전원 주파수 입력부(22)와, 상기 송풍팬을 구동시키는 송풍모터의 RPM을 검출하여 송풍팬의 속도조절을 가능하도록한 송풍모터 RPM 검출부(23)와, 실내의 온도를 감지하는 실내온도 감지부(24)와, 버너 상부에 설치된 플레임로드(FLAME ROD)를 이용하여 불꽃의 상태를 감지하여 점화시에는 착화유무를, 연소시에는 이상연소상태(비화(LIFTING),역화, 황염)를 감지하는 불꽃감지부(25)와, 기화기에 설치된 온도감지소자(THERMISTOR)를 통해 기화기의 온도를 감지하는 기화기 온도감지부(26)와, 기화기에 매설된 히터를 구동시켜 기화기의 온도를 상승시키는 히터구동부(27)와, 화력을 설정하여 주는 화력설정부(28)와, 로타리히터의 각종상태를 외부로 디스플레이 해주는 표시부(29)와, 운전(연소)시작 및 운전(소화)중지등의 스위치를 구비하여 각기능에 대한 일정한 키입력을 상기 마이컴(10)으로 입력하여 주는 스위치 입력부(30)와, 블로우모터를 구동시켜 1차 공기를 버너로 공급하여 주는 블로우모터 구동부(31)와, 전자펌프를 기동시켜 연료탱크내의 연료를 버너로 강제 이송시키는 전자펌프 구동부(32)와, 점화시 이그나이터를 구동하여 점화를 수행하는 이그나이터 구동부(33)와, 상기 마이컴(10)를 리세트시키는 리세트부(34)로 구성된다.1 is a control block diagram of a petroleum burner to which the present invention is applied, and a one-chip microcomputer 10 serving as a central signal processing source for petroleum burner (rotary heater) control, and a predetermined operating power supply for the microcomputer 10 and its peripheral circuits. A power supply unit 20 for supplying a power supply, a blower fan driver 21 for driving a blower fan, a power frequency input unit 22 for generating a pulse signal corresponding to a power frequency and inputting the pulse signal to the microcomputer 10; Blowing motor RPM detection unit 23 to detect the RPM of the blowing motor for driving the blowing fan to control the speed of the blowing fan, an indoor temperature sensing unit 24 for sensing the temperature of the room, and installed on the burner Flame detection unit 25 to detect the state of the flame using the flame rod (flame rod) and the ignition presence during ignition, and the abnormal combustion (LIFTING, backfire, sulfur salt) during combustion, and the carburetor Temperature sensing device installed in the THERMISTO R) carburetor temperature detection unit 26 for sensing the temperature of the carburetor, a heater driver 27 for raising the temperature of the carburetor by driving a heater embedded in the carburetor, and a thermal power setting unit 28 for setting the thermal power ), A display unit 29 which displays various states of the rotary heater to the outside, and switches such as operation (combustion) start and operation (fire extinguishing) to provide a predetermined key input for each function to the microcomputer 10. A switch input unit 30 for inputting, a blow motor driving unit 31 for driving the blow motor to supply primary air to the burner, and an electronic pump driving unit for forcibly transferring the fuel in the fuel tank to the burner by starting the electronic pump. 32, an igniter driver 33 for igniting by driving the igniter during ignition, and a reset part 34 for resetting the micom 10.

제2도는 제1도의 주요부분에 대한 상세회로도를 나타낸 것으로, 불꽃감지부(25)는 프레이로드(FR)의 일단에는 저항(R1)과 저항(R2)에 의해 일정직류전압(12V)이 분압(10V)되어 인가되도록 접속하고, 상기 플레임로드(FR)의 접지단이 저항(R3∼R5) 및 콘덴서(C1)를 통해 마이컴(10)의 입력포트(PI)에 접속되도록 구성되어, 불꽃이 플레임로드(FR)에 존재하면 염전류가 흐르게 되고, 이 염전류는 불꽃이 크기에 따라 일정한 차이를 가지게 된다. 이때 염전류는 저항(R3)과 저항(R4)에 의해 전압값으로 변환되고 저항(R5)과 콘덴서(C1)를 통해 마이컴(10)의 입력포트(PI)에 소정전압(0V∼5V)으로 입력된다.FIG. 2 shows a detailed circuit diagram of the main part of FIG. 1, wherein the flame detection unit 25 divides the constant DC voltage 12V by one of the resistor R1 and the resistor R2 at one end of the play rod FR. (10V) and connected so that the ground terminal of the flame rod (FR) is configured to be connected to the input port (PI) of the microcomputer 10 through the resistors (R3 ~ R5) and the capacitor (C1), the spark When present in the flame rod (FR), a salt current flows, and the salt current has a constant difference depending on the size of the flame. At this time, the salt current is converted into a voltage value by the resistor R3 and the resistor R4 and the predetermined voltage (0V to 5V) is input to the input port PI of the microcomputer 10 through the resistor R5 and the capacitor C1. Is entered.

따라서, 상기 마이컴(10)은 입력포트(PI3)로 입력되는 값을 읽어들어 불꽃의 상태를 인식하게 된다.Therefore, the microcomputer 10 reads the value input to the input port PI3 to recognize the state of the flame.

또한, 전자펌프 구동부(32)는 인버터(INV), 릴레이(RY1) 및 전자펌프(EP)로 구성되어 마이컴(10)이 출력포트(PO1)으로 하이신호를 출력하면 릴레이(RY1)가 통전되어 전자펌프(EP)는 구동된다.In addition, the electromagnetic pump driver 32 includes an inverter INV, a relay RY1, and an electronic pump EP. When the microcomputer 10 outputs a high signal to the output port PO1, the relay RY1 is energized. The electromagnetic pump EP is driven.

또한, 블로우모터 구동부(31)는 인버터(INV), 릴레이(RY2) 및 블로우모터(BM)로 구성되어 마이컴(10)이 출력포트(PO2)으로 하이신호를 출력하면 릴레이(RY2)가 통전되어 블로우모터(BM)는 구동된다.In addition, the blow motor driver 31 includes an inverter INV, a relay RY2, and a blow motor BM. When the microcomputer 10 outputs a high signal to the output port PO2, the relay RY2 is energized. Blow motor BM is driven.

또한, 송풍팬 구동부(21)는 인버터(INV), 포토커플러(PD) 및 송풍모터(AM)로 구성되어 마이컴(10)이 출력포트(PO3)으로 하이신호를 출력하면 포토커플러(PD)가 턴온되어 송풍모터(AM)은 구동된다.In addition, the blower fan driver 21 includes an inverter INV, a photocoupler PD, and a blower motor AM. When the microcomputer 10 outputs a high signal to the output port PO3, the photocoupler PD The blowing motor AM is driven by being turned on.

상기와 같이 구성시켜서된 본 발명의 작용 및 효과를 제3도의 흐름도를 참조하여 설명한다.The operation and effects of the present invention configured as described above will be described with reference to the flowchart of FIG.

먼저, 전원공급부(20)를 통해 전원이 공급되고 스위치 입력부(30)를 통해 운전시작명령이 키입력되면, 점화행정(블로우모터, 송풍모터, 전자펌프구동)을 수행한다(100단계).First, when power is supplied through the power supply unit 20 and an operation start command is input through the switch input unit 30, an ignition stroke (blow motor, blower motor, electronic pump driving) is performed (step 100).

이때 불꽃감지부(25)를 통해 입력되는 염전류의 값을 읽어들여 이 값이 3μA이상인가를 체크(101단계)한다.At this time, by reading the value of the salt current input through the flame detection unit 25 and checks whether the value is 3μA or more (step 101).

여기서 3μA의 염전류는 불꽃이 존재하는 최소한의 염전류 값으로 3μA가 검출되지 아니하면 착화실패로 보고 세트를 소화(102단계)시킨다.Here, the salt current of 3μA is the minimum salt current value in which the flame exists, and if 3μA is not detected, the ignition failure is reported and the set is digested (step 102).

또한, 염전류가 7μA이상으로 검출되면 정상 염전류값으로 판단하여 정상연소를 진행(104단계)하며, 염전류값이 3∼7μA사이의 값을 갖는(103단계)다면 버너부위의 염구망이나 기화기내부에 이물질이 있거나 생성될 수 있는 조건에 기인되는 국부적 연소불량으로 판단하여 블로우모터 구동부(31)로 출력을 차단하여 블로우모터(BM)를 정지시킨다(105단계). 상기 블로우모터(BM) 정지후 3초의 경과(106단계)를 계수한후 블로우모터(BM)를 다시 구동(107단계)시키되 5초동안 유지한다(108단계). 이러한 제어방법으로 30초간을 운전(110단계)한다.In addition, if the salt current is detected to be 7 μA or more, it is judged as a normal salt current value and proceeds with normal combustion (step 104). If the salt current value is between 3 and 7 μA (step 103), the burner network may be In step 105, the blow motor BM is stopped by blocking the output to the blow motor driving unit 31 by determining that there is a local combustion failure due to a foreign matter in the vaporizer or a condition that may be generated. After counting the elapse of 3 seconds (step 106) after stopping the blow motor (BM), the blow motor BM is driven again (step 107), and maintained for 5 seconds (step 108). The control method is operated for 30 seconds (step 110).

따라서 상기 블로우모터(BM)가 일시정지후 재운전되는 순간에 기화기내부에 있던 등유와 공기가 과부되어 배출됨으로써 버너 내,외부에 있던 이물질이나 먼지등이 제거된다.Therefore, the kerosene and air inside the carburetor are excessively discharged at the moment when the blow motor BM is restarted and temporarily removed to remove foreign substances or dust in the burner.

상기 110단계에서 30초의 시간이 경과하면, 다시 염전류의 값을 검출(111단계)하여 염전류의 값이 7μA이하가 검출되면 세트를 소화(113단계)시키고, 7μA가 초과되는 염전류값이 검출되면, 정상연소를 진행한다(112단계).When the time of 30 seconds has elapsed in step 110, the value of the salt current is detected again (step 111). When the value of the salt current is detected to be 7 μA or less, the set is digested (step 113), and the salt current value exceeding 7 μA is increased. If detected, normal combustion proceeds (step 112).

이상에서와 같이 본 발명은 연소중 이상연소조건에서 연소상태를 간편하게 개선할 수 있어 국부적 이물이나 불순물등에 의한 연소불량을 해소할 수 있는 유용한 발명이다.As described above, the present invention is a useful invention that can easily improve the combustion state under abnormal combustion conditions during combustion and can solve the poor combustion caused by local foreign matter or impurities.

Claims (1)

석유연소기의 염구망 이물질 제거방법에 있어서, 석유연소기의 점화후 염전류가 이물질에 의한 국부적 연소불량으로 기인하는 값인가를 판단하는 과정과, 국부적 연소불량시 블로우모터를 3초간 정지, 5초간 운전을 30초 동안 제어하여 이물질을 외부로 배출시키는 과정과, 상기 소정시간 경화후 염전류를 검출하여 이때에도 국부적 연소불량에 따른 염전류 값이 검출되면 석유연소기를 소화시키는 과정을 구비하여 된 것을 특징으로 하는 석유연소기의 염구망 이물질 제거방법.In the method of removing foreign matter from the flame network of a petroleum combustor, the process of determining whether the salt current after ignition of the petroleum combustor is a value caused by a local combustion failure caused by a foreign substance, and stopping the blow motor for 3 seconds and operating for 5 seconds in case of a local combustion failure Control for 30 seconds to discharge the foreign substance to the outside, and the salt current after curing for a predetermined time, and at this time, if the salt current value according to the local combustion failure is detected, the process of extinguishing the petroleum combustor Method for removing foreign matters from the salt chain of an oil burner.
KR1019930031930A 1993-12-31 1993-12-31 Flame screen cleaning system for burner KR970001936B1 (en)

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KR1019930031930A KR970001936B1 (en) 1993-12-31 1993-12-31 Flame screen cleaning system for burner

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Application Number Priority Date Filing Date Title
KR1019930031930A KR970001936B1 (en) 1993-12-31 1993-12-31 Flame screen cleaning system for burner

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KR950019386A KR950019386A (en) 1995-07-22
KR970001936B1 true KR970001936B1 (en) 1997-02-19

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