JPH0216143Y2 - - Google Patents

Info

Publication number
JPH0216143Y2
JPH0216143Y2 JP8237584U JP8237584U JPH0216143Y2 JP H0216143 Y2 JPH0216143 Y2 JP H0216143Y2 JP 8237584 U JP8237584 U JP 8237584U JP 8237584 U JP8237584 U JP 8237584U JP H0216143 Y2 JPH0216143 Y2 JP H0216143Y2
Authority
JP
Japan
Prior art keywords
combustion
burner
detection sensor
flow rate
flame hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP8237584U
Other languages
Japanese (ja)
Other versions
JPS60196143U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8237584U priority Critical patent/JPS60196143U/en
Publication of JPS60196143U publication Critical patent/JPS60196143U/en
Application granted granted Critical
Publication of JPH0216143Y2 publication Critical patent/JPH0216143Y2/ja
Granted legal-status Critical Current

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  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)

Description

【考案の詳細な説明】 産業上の利用分野 本考案は、燃焼状態を検出する燃焼検知センサ
と、燃料の流量制御弁とを備えたバーナ装置に関
する。
[Detailed Description of the Invention] Industrial Application Field The present invention relates to a burner device that includes a combustion detection sensor that detects a combustion state and a fuel flow rate control valve.

従来例の構成とその問題点 従来この種のバーナ装置は第1図に示すように
バーナ1があつて、この炎孔盤2の上部に酸化錫
等の燃焼検知センサ3が支持板4により設けられ
ていて、燃焼状態に異常があると制御回路5へ信
号が送出され、この回路を通じて電磁弁6へ電流
が流れてノズル7からの燃料の噴出を停止される
ものであつた。
Conventional Structure and Problems Conventionally, this type of burner device has a burner 1 as shown in FIG. If there is an abnormality in the combustion state, a signal is sent to the control circuit 5, which causes current to flow to the solenoid valve 6 and stop the injection of fuel from the nozzle 7.

しかし、燃焼検知センサ3は一般にその使用温
度範囲が限られており、その上限温度を越えると
耐久性が損われ、下限温度以下ではセンサとして
の特性が発揮されない(つまり感度が低下する)
という欠点があつた。例えば酸化錫においてはそ
の許容温度範囲は約600℃〜800℃であり、わずか
250℃の狭い範囲である。このためガス器具等に
実際に応用した場合、ある定格燃焼量でセンサ位
置を決めるとガス成分の変動やガス圧の変動によ
る温度変動がほぼこの温度範囲に等しくなつてし
まい、定格燃焼量を絞ることはほとんどできなか
つた。よつて燃焼量の制御はバーナの燃焼をON
−OFFする方法のみであり、暖房器具等に応用
した場合使用勝手が悪く、ON−OFF時の臭い、
温度差によるセンサの耐久性の劣化等の大きな欠
点も生じるものであつた。
However, the combustion detection sensor 3 generally has a limited operating temperature range, and if the upper temperature limit is exceeded, durability is impaired, and below the lower limit temperature, the characteristics as a sensor are not exhibited (that is, the sensitivity decreases).
There was a drawback. For example, the permissible temperature range for tin oxide is approximately 600°C to 800°C, which is only slightly
It is a narrow range of 250℃. For this reason, when actually applied to gas appliances, etc., if the sensor position is determined at a certain rated combustion rate, the temperature fluctuations due to fluctuations in gas components and gas pressure will be approximately equal to this temperature range, and the rated combustion rate will be narrowed down. There was almost nothing I could do. Therefore, the combustion amount is controlled by turning on the burner combustion.
-The only method is to turn it off, so it is not convenient to use when applied to heating equipment, etc., and it causes odor when turning on and off.
There were also major drawbacks such as deterioration of sensor durability due to temperature differences.

考案の目的 本考案はかかる従来の問題を解消するもので、
燃焼検知センサの位置を変えることにより、バー
ナの燃焼量を絞つた場合にも許容温度範囲内にセ
ンサ温度を保ち、安定して燃焼検知ができるバー
ナ装置を提供することを目的とする。
Purpose of the invention The present invention solves such conventional problems.
It is an object of the present invention to provide a burner device capable of stably detecting combustion by changing the position of a combustion detection sensor to maintain the sensor temperature within an allowable temperature range even when the combustion amount of a burner is reduced.

考案の構成 この目的を達成するために本考案は、バーナと
このバーナの炎孔面に対向して燃焼検知センサを
設け、さらにこのセンサを機構部に取付けて炎孔
面からの距離を可変とし、燃料供給経路中に設け
た流量制御弁により燃料流量の変化に対応させる
構成としている。
Structure of the invention In order to achieve this object, the present invention provides a burner and a combustion detection sensor opposite to the flame hole surface of the burner, and further attaches this sensor to the mechanism part so that the distance from the flame hole surface is variable. , a flow control valve provided in the fuel supply path is configured to respond to changes in fuel flow rate.

実施例の説明 以下本考案の一実施例のバーナ装置について第
2〜第3図を用いて説明する。図において第1図
における同部材には同一番号を付与している。
DESCRIPTION OF EMBODIMENTS A burner device according to an embodiment of the present invention will be described below with reference to FIGS. 2 and 3. In the figures, the same members in FIG. 1 are given the same numbers.

図においてバーナ1は従来同様に金網を炎孔盤
2とする表面燃焼バーナであり、この炎孔盤2に
対向して燃焼検知センサ3がソレノイド8に保持
されている。さらにこのソレノイド8はバーナ上
に直接取付けられている支持板4に固定されてい
る。バーナ1への燃料供給は流量制御弁9を介し
てノズル7より行われる。燃焼検知センサ3より
の信号の入力あるいはソレノイド8と流量制御弁
9への電流の出力は制御回路5を介して行われ
る。
In the figure, a burner 1 is a surface combustion burner having a flame hole plate 2 made of a wire mesh as in the conventional case, and a combustion detection sensor 3 is held by a solenoid 8 facing the flame hole plate 2. Furthermore, this solenoid 8 is fixed to a support plate 4 which is mounted directly on the burner. Fuel is supplied to the burner 1 from a nozzle 7 via a flow control valve 9. Input of a signal from the combustion detection sensor 3 or output of current to the solenoid 8 and flow control valve 9 is performed via the control circuit 5.

上記構成において、定格燃焼時には流量制御弁
9へ制御回路5よりある電流が出力され、弁がほ
ぼ全開になりノズル7より燃料が噴出して燃焼が
開始される。燃焼検知センサ3は炎孔盤2から高
さHの位置にあり燃焼状態をモニタしているが、
何らかの異常例えば酸欠状態で不完全燃焼に陥い
ると、このセンサの電気的(例えば酸化錫の場合
は抵抗値)が変化し、この変化を制御回路が促え
て流量制御弁9の弁開度をゼロにして燃焼を停止
する。
In the above configuration, during rated combustion, a certain current is output from the control circuit 5 to the flow rate control valve 9, the valve is almost fully opened, fuel is ejected from the nozzle 7, and combustion is started. The combustion detection sensor 3 is located at a height H from the flame hole plate 2 and monitors the combustion state.
If there is some abnormality, such as incomplete combustion due to lack of oxygen, the electrical value of this sensor (for example, the resistance value in the case of tin oxide) changes, and the control circuit prompts this change to adjust the valve opening of the flow rate control valve 9. to zero and stop combustion.

定格燃焼量から燃焼量を絞つた場合(仮に低燃
焼量時と呼ぶ)には、制御回路5からその燃焼量
に見合う弁開度にするため、ある電流値が出力さ
れる。この動作に同期してソレノイド8へも電流
が出力され、これに保持されている燃焼検知セン
サ3を燃焼盤2の方向に押し下げて両者の距離を
HからH′に縮少する。この状態で燃焼に異常が
生じた場合の動作は定格燃焼時と同様である。
When the combustion amount is reduced from the rated combustion amount (temporarily referred to as low combustion amount), a certain current value is output from the control circuit 5 in order to make the valve opening commensurate with the combustion amount. In synchronization with this operation, a current is also output to the solenoid 8, and the combustion detection sensor 3 held therein is pushed down toward the combustion disk 2, reducing the distance between them from H to H'. If an abnormality occurs in combustion in this state, the operation is the same as in rated combustion.

上記の動作説明の中で燃焼検知センサ3の位置
に触れたが、ここでさらに詳述する。燃焼検知セ
ンサ3の温度範囲は主に燃焼量の変化と炎孔盤2
からの距離によつて決る。つまり燃焼量には比例
し距離には反比例の関係にある。よつて燃焼検知
センサ3の許容上限温度を守るためには、まず定
格燃焼時にこの温度以下になる様に距離を決めね
ばならない。こうして決めた燃焼検知センサ3と
炎孔盤2の距離がHである。しかしこのHのまま
では低燃焼量時に燃焼検知センサ3の温度が低下
しセンサとしての感度を失つてしまう。よつて本
実施例のごとく低燃焼量時には燃焼検知センサ3
の位置を炎孔盤に接近させ両者の距離をH′(<
H)にするならば許容温度内にセンサ温度を維持
することができる。よつて低燃焼量時にも安定し
たセンサ感度を得て燃焼状態を検知することがで
きる。また温度差も小さく、耐久性の劣化も小さ
い。
Although the position of the combustion detection sensor 3 was mentioned in the above explanation of the operation, it will be explained in more detail here. The temperature range of the combustion detection sensor 3 mainly depends on changes in the amount of combustion and the flame hole plate 2.
Depends on distance from. In other words, it is proportional to the amount of combustion and inversely proportional to the distance. Therefore, in order to maintain the allowable upper limit temperature of the combustion detection sensor 3, it is first necessary to determine the distance so that the temperature will be below this temperature during rated combustion. The distance between the combustion detection sensor 3 and the flame hole plate 2 thus determined is H. However, if the temperature remains at this high level, the temperature of the combustion detection sensor 3 will drop when the combustion amount is low, and the sensor will lose its sensitivity. Therefore, when the combustion amount is low as in this embodiment, the combustion detection sensor 3
The position of is brought closer to the flame hole plate, and the distance between the two is set as H′(<
H), the sensor temperature can be maintained within the allowable temperature range. Therefore, even when the combustion amount is low, stable sensor sensitivity can be obtained and the combustion state can be detected. Moreover, the temperature difference is small, and the deterioration of durability is also small.

考案の効果 以上のように本考案のバーナ装置によれば次の
効果が得られる。
Effects of the invention As described above, the burner device of the invention provides the following effects.

(1) バーナの炎孔盤に対向して設けた燃焼検知セ
ンサの炎孔盤からの距離を燃焼量に応じて機構
部により可変して、同センサの温度を常に許容
温度範囲内に維持することができるので、燃焼
範囲が広くかつ安定した燃焼検知の可能なバー
ナ装置を提供できる。
(1) The distance from the flame hole plate of the combustion detection sensor installed opposite to the flame hole plate of the burner is varied by the mechanism according to the amount of combustion, and the temperature of the sensor is always maintained within the permissible temperature range. Therefore, it is possible to provide a burner device with a wide combustion range and stable combustion detection.

(2) バーナの燃焼量の制御は連続的にできるの
で、ON−OFF制御のごとく臭気が発生しな
い。また、燃焼検知センサの温度変動も小さ
く、その耐久性を向上することできる。
(2) Since the combustion amount of the burner can be controlled continuously, no odor is generated as with ON-OFF control. Further, the temperature fluctuation of the combustion detection sensor is small, and its durability can be improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来のバーナ装置の構成図、第2図、
第3図は本考案の1実施例を示すバーナ装置の構
成図で、第2図は定格燃焼状態を示し、第3図は
低燃焼状態を示す。 1……バーナ、2……炎孔盤、3……燃焼検知
センサ、5……制御回路、8……ソレノイド、9
……流量制御弁。
Figure 1 is a configuration diagram of a conventional burner device; Figure 2;
FIG. 3 is a configuration diagram of a burner device showing one embodiment of the present invention, FIG. 2 shows a rated combustion state, and FIG. 3 shows a low combustion state. 1... Burner, 2... Flame hole plate, 3... Combustion detection sensor, 5... Control circuit, 8... Solenoid, 9
...Flow control valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] バーナーと、前記バーナーの炎孔盤に対向して
設けた燃焼検知センサと、前記バーナーへの燃料
供給経路中にあつて燃料の流量を制御する流量制
御弁と、燃料流量に応じて予め決めてある炎孔盤
に生じる燃焼ガス中の位置に前記センサを移動さ
せる機構部とからなるバーナー装置。
a burner, a combustion detection sensor provided opposite to the flame hole plate of the burner, a flow rate control valve for controlling the flow rate of fuel in the fuel supply path to the burner, and a flow rate control valve for controlling the flow rate of fuel; A burner device comprising a mechanical part that moves the sensor to a position in combustion gas generated in a certain flame hole plate.
JP8237584U 1984-06-01 1984-06-01 Burner device Granted JPS60196143U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8237584U JPS60196143U (en) 1984-06-01 1984-06-01 Burner device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8237584U JPS60196143U (en) 1984-06-01 1984-06-01 Burner device

Publications (2)

Publication Number Publication Date
JPS60196143U JPS60196143U (en) 1985-12-27
JPH0216143Y2 true JPH0216143Y2 (en) 1990-05-01

Family

ID=30630032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8237584U Granted JPS60196143U (en) 1984-06-01 1984-06-01 Burner device

Country Status (1)

Country Link
JP (1) JPS60196143U (en)

Also Published As

Publication number Publication date
JPS60196143U (en) 1985-12-27

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