KR910002740B1 - Combustion control device - Google Patents

Combustion control device Download PDF

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Publication number
KR910002740B1
KR910002740B1 KR1019860010930A KR860010930A KR910002740B1 KR 910002740 B1 KR910002740 B1 KR 910002740B1 KR 1019860010930 A KR1019860010930 A KR 1019860010930A KR 860010930 A KR860010930 A KR 860010930A KR 910002740 B1 KR910002740 B1 KR 910002740B1
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South Korea
Prior art keywords
fan
temperature
circuit
signal
burner
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KR1019860010930A
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Korean (ko)
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KR870008152A (en
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시게오 나루세
신지 구로다
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린나이 가부시기가이샤
나이 또오 스스무
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/04—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/08—Regulating air supply or draught by power-assisted systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/16—Measuring temperature burner temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

내용 없음.No content.

Description

연소제어장치Combustion controller

제1도는 본 발명의 한 실시예를 나타낸 설명도.1 is an explanatory diagram showing an embodiment of the present invention.

제2도는 그 요부를 나타낸 블럭선도이다.2 is a block diagram showing the main portion thereof.

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

5 : 버너 6 : 팬5: burner 6: fan

15 : 온도조절회로 16 : 팬구동회로15: temperature control circuit 16: fan drive circuit

18 : 검출기 19 : 피이드백회로18 detector 19 feedback circuit

본 발명은 버너에 연소용 공기를 공급하는 팬의 구동을 제어하는 연소제어장치에 관한 것이다.The present invention relates to a combustion control apparatus for controlling the driving of a fan for supplying combustion air to a burner.

본 출원인은 이전에 버너에 연소용 공기를 공급하는 팬과 그 버너의 부하온도와 설정온도와의 온도차에 따라 신호를 출력하는 온도조절회로와, 이 온도조절회로로부터의 출력신호를 입력신호로 하여 이 입력신호의 크기에 따라 팬에 의한 연소용 공기공급량을 변화시키는 팬구동회로로 이루어지고, 이 팬의 구동을 부하온도와, 설정온도의 온도차에 따라 제어하도록 한 것을 제안하였다.Applicant has previously used a temperature control circuit for outputting a signal according to a temperature difference between a fan supplying combustion air to a burner and a load temperature of the burner and a set temperature, and an output signal from the temperature control circuit as an input signal. It is proposed that the fan drive circuit is configured to change the amount of combustion air supplied by the fan in accordance with the magnitude of the input signal, and the driving of the fan is controlled according to the temperature difference between the load temperature and the set temperature.

그러나 사용하는 팬은 일반적으로 균일하지 않기 때문에 예를 들어 팬모터의 권선이나 철심에 불균형이 있기 때문에 팬구동회로로부터의 신호대로 구동되지 않을 우려가 있다.However, since the fan used is generally not uniform, there is a fear that the fan motor may not be driven according to the signal from the fan driving circuit because there is an unbalance in the winding or iron core of the fan motor.

본 발명은 상기의 결점을 해소한 장치를 제공하고저 하는 것으로서, 버너에 연소용 공기를 공급하는 팬과, 버너의 부하온도와 설정온도와의 온도차에 따른 신호를 출력하는 온도조절회로와, 이 온도조절회로로부터의 출력신호를 입력신호로 하여 이 입력신호의 크기에 따라 팬에 의한 연소용 공기공급량을 변화시키는 팬구동회로와, 팬의 구동상태를 검출하는 검출기와, 검출기로부터의 검출신호를 입력신호로 하여 팬구동회로에 팬의 구동상태가 온도조절회로의 설정온도에 대응한 구동상태가 되도록 하는 보상신호를 보내는 피이드백회로로 이루어진다.The present invention provides a device that eliminates the above drawbacks, comprising: a fan for supplying combustion air to a burner, a temperature control circuit for outputting a signal according to a temperature difference between a load temperature and a set temperature of the burner, and A fan drive circuit which changes the amount of combustion air supplied by the fan according to the magnitude of the input signal using the output signal from the temperature control circuit as an input signal, a detector for detecting the driving state of the fan, and a detection signal from the detector. It consists of a feedback circuit which sends a compensation signal to the fan driving circuit as an input signal so that the driving state of the fan becomes a driving state corresponding to the set temperature of the temperature regulating circuit.

본 발명은 상기 구성에 의한 것으로 이에 따르면 온도조절회로의 출력신호에 따른 팬구동회로로부터의 신호만으로는 팬의 불균일에 의하여 팬이 그 신호대로 정확하게 구동되지 않을때에도 팬의 구동상태 예를 들어 팬의 실제의 회전수는 검출회로에 의하여 시시각각 검출되고, 이 검출신호에 의거하여 피이드백회로로부터 팬구동회로에 팬의 구동상태가 온도조절회로의 설정온도에 대응한 구동상태가 되도록하는 보상신호, 예를 들어 설정온도에 대응한 회전수가 되도록 하는 보상신호가 송출되므로 팬에 불균일이 발생하였다 하더라도 항상 표준의 팬과 마찬가지의 구동을 시킬 수가 있다.According to the present invention, the fan drive circuit according to the output signal of the temperature control circuit according to the present invention, even when the fan is not driven accurately according to the signal due to the non-uniformity of the fan, for example the actual state of the fan The number of revolutions of is detected by the detection circuit every time, and based on the detection signal, a compensation signal for bringing the drive state of the fan from the feedback circuit to the fan drive circuit in accordance with the set temperature of the temperature control circuit, for example For example, since a compensation signal is output to make the rotation speed corresponding to the set temperature, even if the fan is uneven, it can always be driven in the same manner as the standard fan.

다음에 본 발명을 가스급탕기에 적용하여 팬의 구동상태로서 팬의 회전수를 검출하는 경우의 실시예에 대하여 도면에 의거하여 설명한다.Next, an embodiment in the case where the rotation speed of the fan is detected as the driving state of the fan by applying the present invention to a gas water heater will be described with reference to the drawings.

제1도에 있어서, 1은 하부에 통기구멍(2)을 구비하고 상부에 배기통(3)을 구비하는 가스급탕기 본체이고, 이 본체(1)내에는 중간부에 열교환기(4)와 이것을 가열하는 버너(5)를 구비하고, 하부에 이 버너(5)에 연소용 공기를 공급하는 직류의 팬(6)을 구비하고, 상부에 상기 배기통(3)에 이어지는 배기구(7)를 구비한 연소실(8)을 수용하고, 열교환기(4)의 상류측의 급수관(9)으로부터 이송되어 오는 물을 열교환기(4)내에서 데우고 열교환기(4)의 하류측의 출탕관(10)으로부터 탕수를 얻을 수 있도록 함과 동시에 연소배기를 배기통(3)을 거쳐 외부로 방출하도록 하였다. 도면중 11은 버너(5)에 이어지는 가스공급로를 나타내고 이 가스공급로(11)에는 상류측의 전자식 개폐밸브(12)와 하류측의 전자식 비례제어밸브(13)를 설치하였다. 버너(5)로의 연소용 공기공급량의 증감제어는 제2도에 나타낸 바와 같이 제어회로(14)내의 온도조절회로(15)로부터의 신호를 받은 팬구동회로(16)에 의하여 행해지고 종래의 공지의 온도조절회로(15)로부터는 상기 출탕관(10)내의 감온소자(17)에 의하여 검출된 부하온도인 실제의 출탕온도와 온도조절회로(15)내의 설정온도와의 온도차에 따른 신호가 출력되고, 이 출력신호를 팬구동회로(16)에 입력하여 그 크기에 따른 전력을 상기 팬(6)의 모터에 공급하여 회전수를 변화시킨다.In FIG. 1, 1 is the gas water heater main body which has the ventilation hole 2 in the lower part, and the exhaust cylinder 3 in the upper part, The heat exchanger 4 and this are heated in the middle part in this main body 1. In FIG. And a combustion chamber having a direct current fan (6) for supplying combustion air to the burner (5) at the bottom, and an exhaust port (7) connected to the exhaust pipe (3) at the top. (8) is housed, the water conveyed from the water supply pipe (9) upstream of the heat exchanger (4) is warmed in the heat exchanger (4), and the hot water from the tapping pipe (10) downstream of the heat exchanger (4). At the same time, the combustion exhaust was discharged to the outside via the exhaust pipe (3). 11 shows a gas supply path following the burner 5, and the gas supply path 11 is provided with an upstream electromagnetic on / off valve 12 and a downstream electromagnetic proportional control valve 13. The increase / decrease control of the combustion air supply amount to the burner 5 is performed by the fan drive circuit 16 which receives a signal from the temperature regulating circuit 15 in the control circuit 14 as shown in FIG. The temperature control circuit 15 outputs a signal according to the temperature difference between the actual tapping temperature, which is the load temperature detected by the temperature sensing element 17 in the tapping tube 10, and the set temperature in the temperature regulating circuit 15. Then, this output signal is input to the fan drive circuit 16 to supply electric power according to the magnitude to the motor of the fan 6 to change the rotation speed.

상기 구성은 앞서 제안한 장치와 특별히 다른 것은 아니지만, 본 발명에서는 팬(6)의 구동상태를 검출하는 검출기(18)와, 이 검출기(18)로부터의 검출신호를 입력신호로 하여 팬구동회로(16)에 팬(6)의 구동상태가 상기 온도조절회로(15)의 설정온도에 대응한 구동상태가 되도록 하는 보상신호를 보내는 피이드백회로(19)를 설치하여 팬(6)의 품질 등의 불균형에 인하여 온도조절회로(15)의 출력신호에 따른 팬구동회로(16)로부터의 신호만으로는 팬(6)이 신호대로 구동되지 않을때라도 팬구동회로(16)에 보상신호를 보내어 항상 표준인 팬과 마찬가지의 구동 즉 도시한 것에서는 표준의 팬과 동일한 회전수가 되도록 하였다.The above configuration is not particularly different from the above-mentioned device, but in the present invention, the fan 18 includes a detector 18 for detecting a driving state of the fan 6 and a detection signal from the detector 18 as an input signal. ) Is provided with a feedback circuit 19 which sends a compensation signal for driving the fan 6 to a driving state corresponding to the set temperature of the temperature regulating circuit 15. Therefore, only the signal from the fan drive circuit 16 according to the output signal of the temperature control circuit 15 sends a compensation signal to the fan drive circuit 16 even when the fan 6 is not driven as a signal. In the same driving, that is, the same rotation speed as that of the standard fan was set.

또 버너(5)로의 가스공급량의 증감제어는 제2도의 표시와 같이 제어회로(14)내의 검출회로(18)로부터의 신호를 받은 비례제어밸브 구동회로(20)에 의하여 행해지는 것으로, 검출회로(18)로부터는 팬(6)의 실제의 회전수에 따른 신호가 출력되고, 이 출력신호를 비례제어밸브 구동회로(20)에 입력하여 그 크기에 따른 전류를 상기 전자식 개폐밸브(12)의 코일과 상기 전자식 비례제어밸브(13)의 코일에 흐르게 하여 전자식 개폐밸브(12)를 개방함과 동시에 전자식 비례제어밸브(13)의 개방도를 조절하게 된다.In addition, the increase and decrease control of the gas supply amount to the burner 5 is performed by the proportional control valve drive circuit 20 which received the signal from the detection circuit 18 in the control circuit 14, as shown in FIG. From 18, a signal corresponding to the actual rotational speed of the fan 6 is output, and this output signal is input to the proportional control valve driving circuit 20, and a current according to the magnitude thereof is supplied to the electronic shut-off valve 12. By flowing through the coil and the coil of the electronic proportional control valve 13, the electronic on / off valve 12 is opened and the degree of opening of the electronic proportional control valve 13 is adjusted.

도시한 것에서는, 다시 온도조절회로(15)와 팬구동회로(16)와의 사이에 연산회로(21)를 개재시키고, 이것에 상기 급수관(9)내에 설치한 수온센서(22)와 수량센서(23)로부터의 신호를 입력하여 팬구동회로(16)로부터의 출력을 급수온도나 급수량의 변화에 따라서 보정하도록 하였다.In the figure, the temperature control circuit 15 and the fan drive circuit 16 are interposed between the calculation circuit 21 and the water temperature sensor 22 and the water quantity sensor (installed in the water supply pipe 9). A signal from 23) was inputted so that the output from the fan drive circuit 16 was corrected according to the change in the water supply temperature or the water supply amount.

이와 같이 하면 버너(5)로의 연소용 공기공급량과 가스공급량이 온도조절회로(15)의 설정온도에 대응한 값으로 항상 제어되어 버너(5)는 항상 적정한 공연비로 연소된다.In this way, the air supply amount and the gas supply amount for combustion to the burner 5 are always controlled to a value corresponding to the set temperature of the temperature control circuit 15 so that the burner 5 is always burned at an appropriate air-fuel ratio.

또한 도시한 것에서는 검출회로(18)로서 팬(6)의 회전수를 검출하는 것을 사용하였으나 이것에 한정되는 것은 아니고 예를 들어 팬(6)의 풍량을 검출하는 것 등 팬(6)의 구동상태가 검출되는 것이면 좋다.In addition, although the rotation speed of the fan 6 was detected as the detection circuit 18, it is not limited to this, For example, driving the fan 6, such as detecting the air volume of the fan 6, for example. The state may be detected.

이와 같이 본 발명에 의하면, 팬의 구동상태를 검출하는 검출기와, 이 검출기로부터의 검출신호를 입력신호로 하여 팬구동회로에 팬의 구동상태가 온도조절회로의 설정온도에 대응하는 구동상태가 되도록 하는 보상신호를 보내는 피이드백회로를 설치하였기 때문에 사용하는 팬의 권선이나 철심에 불균형이 있어도 항상 표준의 팬과 마찬가지의 구동상태로 제어할 수가 있으며, 특히 연소용 공기의 공급량을 높은 정밀도로 제어할 필요가 있는 고부하 연소의 연소기에도 적용할 수도 있어 편리하다는 등의 효과를 가진다.As described above, according to the present invention, the detector for detecting the driving state of the fan and the detection signal from the detector are used as input signals so that the driving state of the fan in the fan driving circuit becomes a driving state corresponding to the set temperature of the temperature control circuit. Since a feedback circuit that sends a compensation signal is provided, it is possible to always control the driving state of the standard fan even if there is an imbalance in the winding or iron core of the fan used. It can also be applied to a combustor of high load combustion, which is necessary, and has the effect of being convenient.

Claims (1)

버너에 연소용 공기를 공급하는 팬과, 그 버너의 부하온도와 설정온도와의 온도차에 따른 신호를 출력하는 온도조절회로와, 이 온도조절회로로부터의 출력신호를 입력신호로 하고, 이 입력신호의 크기에 따라 팬에 의한 연소용 공기공급량을 변화시키는 팬구동회로와, 그 팬의 구동상태를 검출하는 검출기와, 검출기로부터의 검출신호를 입력신호로 하고, 팬구동회로에 팬의 구동상태가 온도조절회로의 설정온도에 대응하는 구동상태로 되도록 하는 보상신호를 보내는 피이드백회로를 가지며 이로서 상기 온도조절회로와 팬구동회로의 사이에 연산회로를 개재시켜서 상기 급수관내에 설치한 수온센서와 수량센서로부터의 신호를 입력하므로서 구동회로로부터의 출력을 급수온도나 급수량의 변화에 따라 보장하도록 구성한 것을 특징으로 하는 연소제어장치.A fan for supplying combustion air to the burner, a temperature control circuit for outputting a signal according to the temperature difference between the load temperature and the set temperature of the burner, and an output signal from this temperature control circuit are used as input signals. The fan drive circuit changes the amount of combustion air supplied by the fan according to the size of the fan, the detector detecting the drive state of the fan, and the detection signal from the detector as input signals. It has a feedback circuit that sends a compensation signal to make the driving state corresponding to the set temperature of the temperature regulating circuit, so that a water temperature sensor and a quantity sensor installed in the water supply pipe with a calculation circuit interposed between the temperature regulating circuit and the fan driving circuit. Combustion characterized in that it is configured to guarantee the output from the drive circuit according to the change of the water supply temperature or the water supply amount by inputting the signal from Control unit.
KR1019860010930A 1986-02-22 1986-12-19 Combustion control device KR910002740B1 (en)

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JP86-36535 1986-02-22
JP36535 1986-02-22
JP3653586 1986-02-22

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KR910002740B1 true KR910002740B1 (en) 1991-05-03

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JP (1) JPS62276328A (en)
KR (1) KR910002740B1 (en)
DE (1) DE3705437A1 (en)
FR (1) FR2594938B1 (en)
GB (1) GB2187309B (en)

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CN110131881A (en) * 2019-04-25 2019-08-16 黄志优 A kind of gas heater intelligent circulation control device

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JPS62276328A (en) 1987-12-01
DE3705437A1 (en) 1987-09-03
GB8703375D0 (en) 1987-03-18
KR870008152A (en) 1987-09-24
GB2187309B (en) 1989-12-06
DE3705437C2 (en) 1989-08-03
FR2594938B1 (en) 1990-10-26
GB2187309A (en) 1987-09-03
FR2594938A1 (en) 1987-08-28

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