JPH0330691Y2 - - Google Patents
Info
- Publication number
- JPH0330691Y2 JPH0330691Y2 JP1987130630U JP13063087U JPH0330691Y2 JP H0330691 Y2 JPH0330691 Y2 JP H0330691Y2 JP 1987130630 U JP1987130630 U JP 1987130630U JP 13063087 U JP13063087 U JP 13063087U JP H0330691 Y2 JPH0330691 Y2 JP H0330691Y2
- Authority
- JP
- Japan
- Prior art keywords
- flame
- thermocouple
- combustion
- plate
- burner
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 58
- 230000000087 stabilizing effect Effects 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 18
- 239000001301 oxygen Substances 0.000 description 18
- 229910052760 oxygen Inorganic materials 0.000 description 18
- 230000007423 decrease Effects 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 229910001006 Constantan Inorganic materials 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、湯沸器やフアンヒータ、コンロ等の
燃焼装置において、不完全燃焼や立ち消え等、バ
ーナの燃焼状態を温度を介して検出するもので、
詳しくは、バーナの炎口の近傍に、加熱温度に応
じた熱起電力を発生する燃焼状態検出用の熱電対
を配設してある燃焼装置の燃焼状態検出部に関す
る。[Detailed description of the invention] [Industrial application field] This invention detects the combustion state of the burner, such as incomplete combustion or extinction, through temperature in combustion devices such as water heaters, fan heaters, and stoves. in,
More specifically, the present invention relates to a combustion state detection section of a combustion device in which a thermocouple for detecting a combustion state that generates a thermoelectromotive force according to a heating temperature is disposed near the flame port of a burner.
従来の燃焼装置の燃焼状態検出部では、第１１
図に示すように、正常燃焼状態のバーナ２の燃焼
炎ａ中に熱電対４の温接点を、不完全燃焼や立ち
消え等の燃焼状態の変化でその燃焼炎ａによる加
熱温度が変わるように挿入位置させることによ
り、燃焼状態に応じて熱電対の熱起電力を変化さ
せて燃焼状態を検出するように構成されていた
（文献を示すことができない。）
〔考案が解決しようとする問題点〕
しかし、前記の従来構成によるときは、熱電対
の温接点を燃焼炎で直接に加熱させるため、次の
ような欠点があつた。
In the combustion state detection section of the conventional combustion device, the 11th
As shown in the figure, the hot junction of the thermocouple 4 is inserted into the combustion flame a of the burner 2 in a normal combustion state so that the heating temperature by the combustion flame a changes due to changes in the combustion state such as incomplete combustion or extinction. It was configured to detect the combustion state by changing the thermoelectromotive force of the thermocouple according to the combustion state by positioning the thermocouple in the combustion state. However, in the conventional configuration described above, the hot junction of the thermocouple is directly heated by the combustion flame, which has the following drawbacks.
つまり、燃焼炎は燃焼状態に関係なくふらつく
ため、同じ燃焼状態であつても、その燃焼炎のふ
らつきによつて熱電対における温接点の温度が急
変して熱電対の熱起電力が変動し、その結果、熱
電対の熱起電力に基づく燃焼状態の判定を安定し
て行わせることが困難である。 In other words, the combustion flame fluctuates regardless of the combustion state, so even if the combustion state is the same, the temperature of the hot junction of the thermocouple changes suddenly due to the fluctuation of the combustion flame, and the thermoelectromotive force of the thermocouple fluctuates. As a result, it is difficult to stably determine the combustion state based on the thermoelectromotive force of the thermocouple.
本考案の目的は、上述の実情に鑑み熱電対の熱
起電力に基づく燃焼状態の判定をより安定的に、
かつ精度良く行えるようにする点にある。 In view of the above-mentioned circumstances, the purpose of this invention is to more stably determine the combustion state based on the thermoelectromotive force of the thermocouple.
The goal is to be able to do this with high precision.
本考案による燃焼装置の燃焼状態検出部の特徴
構成は、熱電対の検出対象炎に対して保炎作用す
る保炎板を設け、その保炎板からの熱伝導で加熱
される状態に前記熱電対を形成し、前記保炎板を
検出対象炎の前記炎口に対して位置変更調整自在
とする位置調整機構を設けたことにあり、その作
用・効果は次の通りである。
The characteristic configuration of the combustion state detection section of the combustion device according to the present invention is that a flame stabilizing plate is provided that has a flame stabilizing effect on the flame to be detected by the thermocouple, and the thermocouple is heated by heat conduction from the flame stabilizing plate. The present invention is provided with a position adjustment mechanism that forms a pair and allows the flame holding plate to be freely changed and adjusted in position with respect to the flame opening of the flame to be detected, and its functions and effects are as follows.
つまり、上記の特徴構成においては、保炎板の
保炎作用により熱電対の検出対象炎が安定し、ま
た、正常燃焼状態中、保炎板は保炎作用に対する
相互作用として、その安定した検出対象炎により
安定的に加熱されて、検出対象炎に多少のふらつ
きがあつても燃焼状態に応じた温度に安定的に保
たれる。
In other words, in the characteristic configuration described above, the flame to be detected by the thermocouple is stabilized due to the flame stabilizing effect of the flame stabilizing plate, and during normal combustion, the flame stabilizing plate stabilizes the detection target as an interaction with the flame stabilizing effect. It is stably heated by the target flame, and even if there is some fluctuation in the detection target flame, the temperature is stably maintained according to the combustion state.
したがつて、上記保炎板からの熱伝導で熱電対
を加熱する構成とすることで、検出対象炎の多少
のふらつきにかかわらず熱電対の温度を燃焼状態
に応じた温度に安定的に維持できる。 Therefore, by configuring the thermocouple to be heated by heat conduction from the flame-holding plate, the temperature of the thermocouple can be stably maintained at a temperature corresponding to the combustion state, regardless of slight fluctuations in the flame to be detected. can.
又、保炎板による保炎では、酸素濃度がある特
定値に低下するまでは、保炎作用により検出対象
炎の安定性を保ち得ることで、酸素濃度の低下に
対する保炎板温度（すなわち、熱電対温度）の低
下が緩慢となり、そして、酸素濃度が上記特定値
よりも低くなると、保炎限界を越える状態となつ
て燃焼状態が急速に悪化することから、酸素濃度
が上記特定値よりも低い範囲では、酸素濃度の低
下に対する保炎板温度（熱電対温度）の低下が急
激となる。 In addition, with flame stabilization using a flame stabilizing plate, the stability of the flame to be detected can be maintained by the flame stabilizing effect until the oxygen concentration decreases to a certain specific value, so that the temperature of the flame stabilizing plate against the decrease in oxygen concentration (i.e., If the decrease in thermocouple temperature) becomes slow and the oxygen concentration becomes lower than the above specified value, the flame holding limit will be exceeded and the combustion condition will deteriorate rapidly. In a low range, the flame stabilizing plate temperature (thermocouple temperature) decreases rapidly with respect to the decrease in oxygen concentration.
すなわち、このことから、保炎板がない場合で
は、酸素濃度低下に対する熱電対の熱起電力低下
率が第５図中点線で示す如く一律であるのに対
し、上記特徴構成では、第５図中実線で示す如
く、酸素濃度低下に対する熱電対の熱起電力Ｗの
低下率を、酸素濃度が特定値d0よりも高い範囲で
は小に、かつ、酸素濃度が上記特定値d0よりも低
い範囲では大にでき、そして、不完全燃焼である
か否かの判断の基準となる酸素濃度設定値d1より
も上記特定値d0が大となるようにすることで、そ
の酸素濃度設定値d1に対応する設定熱起電力W1
と雑音との差、つまり、Ｓ／Ｎ比を大きくとるこ
とができる。 That is, from this, in the case where there is no flame stabilizing plate, the thermoelectromotive force reduction rate of the thermocouple with respect to the decrease in oxygen concentration is uniform as shown by the dotted line in FIG. As shown by the solid line, the rate of decrease in the thermoelectromotive force W of the thermocouple with respect to the decrease in oxygen concentration is small in the range where the oxygen concentration is higher than the specific value d 0 , and the oxygen concentration is lower than the above specific value d 0 . By making the above specific value d 0 larger than the oxygen concentration setting value d 1 , which is the standard for determining whether or not incomplete combustion is occurring, the oxygen concentration setting value can be increased. Setting thermoelectromotive force W 1 corresponding to d 1
It is possible to increase the difference between the signal and noise, that is, the S/N ratio.
換言すれば、酸素濃度変化に対して熱起電力を
大きく変化させることができるため、設定熱起電
力W1の測定のバラツキが多少大きくとも、その
測定結果に対応する酸素濃度のバラツキは小さい
ものとすることができる。 In other words, the thermoelectromotive force can be greatly changed in response to changes in oxygen concentration, so even if the measurement variation in the set thermoelectromotive force W 1 is somewhat large, the variation in the oxygen concentration corresponding to the measurement result is small. It can be done.
その上、上記特徴構成では、位置調整機構によ
り保炎板を位置変更調整自在としたことにより、
保炎板の位置変更調整で検出対象炎に対する保炎
作用特性を変化させて、熱電対の熱起電力発生特
性を燃焼特性に応じ調整・選定する、といつたこ
とを容易に実施でき、これによつて、バーナ個々
の燃焼特性のバラツキや燃料種による燃焼特性の
相違にかかわらず、熱起電力測定による燃焼状態
検出を燃焼特性に適合する状態で的確に行わせる
ことができる。 Moreover, in the above characteristic configuration, the position adjustment mechanism allows the flame holding plate to be freely changed and adjusted.
It is possible to easily adjust and select the thermoelectromotive force generation characteristics of the thermocouple according to the combustion characteristics by changing the flame holding characteristics for the flame to be detected by adjusting the position of the flame holding plate. Therefore, regardless of variations in the combustion characteristics of individual burners or differences in combustion characteristics depending on the fuel type, combustion state detection by thermoelectromotive force measurement can be accurately performed in a state that matches the combustion characteristics.
以上作用の結果、本考案によれば、燃焼状態の
良否とは関係なく生じる燃焼炎のふらつきや、熱
起電力の測定のバラツキの影響を抑制回避して、
また、バーナ個々の燃焼特性のバラツキや燃料種
による燃焼特性の相違にも容易かつ的確に対処し
て、全体として、不完全燃焼を従来に比べより安
定的に、かつ精度良く検出し得るに至つた。
As a result of the above actions, the present invention suppresses and avoids the effects of fluctuations in the combustion flame and variations in thermoelectromotive force measurements that occur regardless of the quality of the combustion state.
In addition, it is possible to easily and accurately deal with variations in combustion characteristics of individual burners and differences in combustion characteristics depending on fuel type, and as a whole, incomplete combustion can be detected more stably and accurately than before. Ivy.
次に、本考案の実施例を示す。 Next, an example of the present invention will be shown.
第２図に示すように、ケース１内に、バーナ２
とこのバーナ２で加熱される水加熱用の熱交換器
３とを設け、前記バーナ２の燃焼状態を検出する
ための熱電対４と点火プラグ５とを設け、前記熱
交換器３への給水路Ｗに、操作バルブ６と水ガバ
ナ７とを介装し、前記バーナ２への燃焼ガス供給
路Ｇに、前記水ガバナ７に連動して通水時に開く
水圧応動弁８と２つの電磁弁９とを介装し、制御
装置１０を設けて、燃焼装置の一例である元止め
式の湯沸器を構成する。 As shown in Fig. 2, a burner 2 is installed inside the case 1.
and a heat exchanger 3 for heating water heated by the burner 2, a thermocouple 4 and a spark plug 5 for detecting the combustion state of the burner 2, and a water supply to the heat exchanger 3. An operation valve 6 and a water governor 7 are interposed in the passage W, and a hydraulic response valve 8 and two electromagnetic valves are provided in the combustion gas supply passage G to the burner 2, which opens when water flows in conjunction with the water governor 7. 9 and a control device 10 are provided to constitute a stop-start type water heater which is an example of a combustion device.
前記バーナ２は、第１図および第３図に示すよ
うに、複数の炎口２ａを列状に並べて形成するバ
ーナ本体２Ａの複数を、それらバーナ本体２Ａに
燃焼ガスを噴出供給するバーナノズルを備えたバ
ーナホルダ２Ｂに、互いに平行に並列位置するよ
うに取付け、前記バーナホルダ２Ｂの端部に、並
列端に位置するバーナ本体２Ａの炎口２ａのうち
特定少数個のものからの燃焼炎ａに作用する燃焼
状態検出用の保炎板２Ｃをステー２Ｄを介して取
付けて構成されている。なお、前記保炎板２Ｃ
は、ステー２Ｄにねじ２ｂを介して取付けられて
おり、そして、そのねじ２ｂに対するねじ孔２Ｃ
は上下姿勢の長孔に形成し、その長孔２ｃの上下
寸法範囲内で保炎板２Ｃを上下位置変更できるよ
うにしてある。つまり、保炎板２Ｃをその保炎対
象炎ａの炎口２ａに対して上下位置変更調整自在
とする位置調整機構を、上記ねじ２ｂと長孔構成
のねじ孔２ｃとにより構成してある。また、前記
バーナ本体２Ａは、ステンレスの板金製品であ
り、保炎板２Ｃもステンレス製である。 As shown in FIGS. 1 and 3, the burner 2 includes a plurality of burner bodies 2A formed by arranging a plurality of flame ports 2a in a row, and a burner nozzle that injects and supplies combustion gas to the burner bodies 2A. The burner holders 2B are attached to the burner holders 2B so as to be arranged parallel to each other, and the combustion flames a from a specific few of the burner ports 2a of the burner bodies 2A located at the parallel ends are applied to the ends of the burner holders 2B. It is constructed by attaching a flame holding plate 2C for detecting the combustion state via a stay 2D. In addition, the flame holding plate 2C
is attached to the stay 2D via a screw 2b, and a screw hole 2C for the screw 2b is attached to the stay 2D.
is formed into a long hole in a vertical position, and the flame holding plate 2C can be changed in vertical position within the vertical dimension range of the long hole 2c. In other words, a position adjustment mechanism that allows the flame stabilizing plate 2C to be adjusted up and down with respect to the flame opening 2a of the flame a to be flame stabilized is constituted by the screw 2b and the screw hole 2c having an elongated hole configuration. Further, the burner main body 2A is a stainless steel sheet metal product, and the flame holding plate 2C is also made of stainless steel.
前記熱電対４は、前記バーナ本体２Ａの炎口２
ａのうち、保炎板２Ｃに対応するものの近傍に配
設されて、加熱温度に応じた熱起電力を発生する
ものであつて、第１図および第３図に示すよう
に、前記保炎板２Ｃに、２つの熱電対材４Ａ，４
Ｂのうちの一方の板状の熱電対材４Ａを、その保
炎板２Ｃが他方の熱電対材４Ｂとなる状態に接合
して構成されている。その接合構造は、一方の板
状熱電対材４Ａの折曲げ先端部４ａを、保炎板２
Ｃの上端近くの外面に当接させ、保炎板２Ｃの上
端部２ｄを、前記折曲げ先端部４ａを挾圧するよ
うに折返した構造である。つまり、熱電対４は、
バーナ２の保炎板２Ｃを他方の熱電対材４Ｂに兼
用利用して構成してあり、これによつて、部材の
兼用化による構造の簡素化、コストダウン及び組
付け性の向上を図つてある。この熱電対４の一方
の熱電対材４Ａは、保炎板２Ｃをステンレス製と
したことに対しコンスタンタン製としてある。 The thermocouple 4 is connected to the flame port 2 of the burner main body 2A.
Among the flame-holding plates 2C, the flame-holding plate 2C generates a thermoelectromotive force according to the heating temperature, and as shown in FIGS. Two thermocouple materials 4A, 4 are attached to the plate 2C.
It is constructed by joining one plate-shaped thermocouple material 4A of B in such a manner that its flame stabilizing plate 2C becomes the other thermocouple material 4B. The joining structure is such that the bent tip 4a of one plate-shaped thermocouple material 4A is connected to the flame stabilizing plate 2.
It has a structure in which the flame stabilizing plate 2C is brought into contact with the outer surface near the upper end thereof, and the upper end 2d of the flame stabilizing plate 2C is folded back so as to clamp the bent tip 4a. In other words, the thermocouple 4 is
The flame-holding plate 2C of the burner 2 is also used as the other thermocouple material 4B, thereby simplifying the structure, reducing costs, and improving ease of assembly by using a dual-purpose member. be. One thermocouple material 4A of this thermocouple 4 is made of constantan, whereas the flame stabilizing plate 2C is made of stainless steel.
もつて、この熱電対４は、保炎板２Ｃによる保
炎効果によつて、第５図に示すように、酸素濃度
の特定値d0を境として、酸素濃度が特定値d0に低
下するまではその酸素濃度の低下に伴つてその熱
起電力Ｗを緩慢に下降させ、酸素濃度が特定値d0
以下では、保炎板２Ｃのない場合（図中点線で示
す）よりもその酸素濃度の低下に伴つてその熱起
電力Ｗを急激に下降させるようになつており、そ
して、前述のねじ２ｂ及びねじ孔２ｃよりなる位
置調整機構をもつて保炎板２Ｃを上下位置変更調
整することにより、また、必要に応じ第４図イ，
ロに示す如く適当手法をもつて保炎板２Ｃの炎口
２ａに対する距離Ｄ、姿勢を変更することによ
り、保炎作用特性を変化させて、熱起電力の発生
特性をバーナ２の個々や燃焼ガス種により相違す
る燃焼特性に応じて調整・選定できるようになつ
ている。 In the thermocouple 4, as shown in FIG. 5, due to the flame stabilizing effect of the flame stabilizing plate 2C, the oxygen concentration decreases to a specific value d 0 after reaching a specific value d 0 of the oxygen concentration. As the oxygen concentration decreases, the thermoelectromotive force W slowly decreases until the oxygen concentration reaches a specific value d 0
In the following, the thermoelectromotive force W is lowered more rapidly as the oxygen concentration decreases than in the case without the flame stabilizing plate 2C (indicated by the dotted line in the figure), and the above-mentioned screws 2b and By adjusting the vertical position of the flame stabilizing plate 2C using the position adjustment mechanism consisting of the screw hole 2c, it is also possible to adjust the position of the flame holding plate 2C by changing the vertical position as required.
By changing the distance D and attitude of the flame holding plate 2C with respect to the flame opening 2a using an appropriate method as shown in FIG. It is now possible to adjust and select according to the combustion characteristics that differ depending on the gas type.
前記制御装置１０は、前記操作バルブ６の通水
動作でスイツチ（図示せず）がONすることによ
り電磁弁９を開くとともに、点火プラグ５を作動
させて、バーナ２を点火させ、前記操作バルブ６
の止水動作で前記スイツチがOFFすることによ
り、電磁弁９を閉じ、燃焼時において、バーナ２
の立ち消えや不完全燃焼が生じて前記熱電対４の
熱起電力Ｗが設定値w1にまで下降したとき、前
記電磁弁９を閉じるように構成されている。つま
り、熱電対４の熱起電力を制御装置１０で判定し
て、その判定結果に基づき不完全燃焼時に電磁弁
９を制御装置１０により遮断操作する形態とする
ことで、従来一般の形態、すなわち、熱電対４の
熱起電力そのものにより電磁弁９を開弁状態に保
持して、不完全燃焼時にはそれに伴う熱起電力低
下で開弁状態保持が不能となることをもつて電磁
弁９を閉弁させる形態に比べ、電磁弁９の電磁操
作特性のバラツキにかかわらず、不完全燃焼時に
より的確に電磁弁９を遮断できるようにしてあ
る。 The control device 10 opens a solenoid valve 9 by turning on a switch (not shown) when water is passed through the operating valve 6, and also operates a spark plug 5 to ignite the burner 2. 6
When the switch is turned OFF by the water stop operation, the solenoid valve 9 is closed and the burner 2 is turned off during combustion.
The solenoid valve 9 is configured to close when the thermoelectromotive force W of the thermocouple 4 falls to a set value w1 due to extinction or incomplete combustion. In other words, the thermoelectromotive force of the thermocouple 4 is determined by the control device 10, and based on the determination result, the solenoid valve 9 is shut off by the control device 10 at the time of incomplete combustion. , the solenoid valve 9 is kept open by the thermoelectromotive force of the thermocouple 4 itself, and when incomplete combustion occurs, the solenoid valve 9 is closed because the thermoelectromotive force itself decreases and it becomes impossible to keep the valve open. Compared to the valve type, the solenoid valve 9 can be shut off more accurately at the time of incomplete combustion, regardless of variations in the electromagnetic operating characteristics of the solenoid valve 9.
以下、本考案の別実施例を示す。 Another embodiment of the present invention will be shown below.
〔１〕 第６図に示すように、一方の板状熱電対
材４Ａを保炎板２Ｃに当接状態に接合して熱電
対４を構成する。[1] As shown in FIG. 6, the thermocouple 4 is constructed by joining one plate-shaped thermocouple material 4A to the flame stabilizing plate 2C in abutting state.
〔２〕 第７図イ，ロに示すように、一方の板状
熱電対４Ａと保炎板２Ｃとの当接部に貫通孔４
ｃを形成して、熱電対４の立上り特性を良くす
る。[2] As shown in Fig. 7 A and B, a through hole 4 is formed in the abutment area between one plate thermocouple 4A and the flame stabilizing plate 2C.
c to improve the rise characteristics of the thermocouple 4.
〔３〕 第８図イ，ロに示すように、一方の熱電
対材４Ａを棒状または線状に形成し、この一方
の熱電対材４Ａの適宜長さにわたる折曲げ先端
部分４ｄを、保炎板２Ｃに形成した細長凹部に
嵌入接合することで熱電対４を構成する。[3] As shown in Fig. 8 A and B, one thermocouple material 4A is formed into a rod shape or a wire shape, and the bent end portion 4d of this one thermocouple material 4A over an appropriate length is flame-stabilized. The thermocouple 4 is constructed by fitting and joining into an elongated recess formed in the plate 2C.
〔４〕 第９図イ，ロに示すように、一方の熱電
対材４Ａを棒状または綿状に形成し、この一方
の熱電対材４Ａの端部を、保炎板２Ｃの凹部に
挿入接合することで熱電対４を構成する。[4] As shown in Fig. 9 A and B, one thermocouple material 4A is formed into a rod shape or cotton shape, and the end of this one thermocouple material 4A is inserted and joined into the recess of the flame stabilizing plate 2C. By doing so, the thermocouple 4 is configured.
〔５〕 上記実施例では、ステンレスとコンスタ
ンタンと接合させた熱電対４を示したが、熱電
対４としては、他の材料からなるものであつて
も良い。[5] In the above embodiment, the thermocouple 4 is made of stainless steel and constantan, but the thermocouple 4 may be made of other materials.
〔６〕 第１０図に示すように、熱電対４と保炎
板２Ｃとを別体に構成し、熱電対４を保炎板２
Ｃに熱伝導状態に当接させて連結させる。[6] As shown in FIG. 10, the thermocouple 4 and the flame stabilizing plate 2C are configured separately, and the thermocouple 4 is
Connect it to C in a thermally conductive state.
尚、実用新案登録請求の範囲の項に図面との
対照を便利にするために符号を記すが、該記入
により本考案は添付図面の構造に限定されるも
のではない。 Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.
第１図ないし第５図は本考案の実施例を示し、
第１図は要部の側面図、第２図は概略構成図、第
３図は要部の正面図、第４図イ，ロは調整要領の
一例を示す要部の側面図、第５図は酸素濃度と熱
起電力との関係を示すグラフである。第６ないし
第１０図は本考案の別実施例を示し、第６図、第
８図ロは要部の側面図、第７図イ、第８図イ、第
９図イは要部の正面図、第７図ロ、第９図ロは要
部の縦断側面図、第１０図は概略側面図であり、
第１１図は従来例を示す要部の概略側面図であ
る。
２……バーナ、２ａ……炎口、４……熱電対、
２Ｃ……保炎板、４Ａ，４Ｂ……熱電対材。
1 to 5 show embodiments of the present invention,
Fig. 1 is a side view of the main part, Fig. 2 is a schematic configuration diagram, Fig. 3 is a front view of the main part, Fig. 4 A and B are side views of the main part showing an example of the adjustment procedure, and Fig. 5 is a graph showing the relationship between oxygen concentration and thermoelectromotive force. 6 to 10 show other embodiments of the present invention, FIGS. 6 and 8 B are side views of the main parts, and FIGS. 7 A, 8 A, and 9 A are front views of the main parts. Figures 7(b) and 9(b) are longitudinal sectional side views of the main parts, and FIG. 10 is a schematic side view.
FIG. 11 is a schematic side view of the main parts of a conventional example. 2...burner, 2a...flame port, 4...thermocouple,
2C...flame holding plate, 4A, 4B...thermocouple material.
Claims (1)
じた熱起電力を発生する燃焼状態検出用の熱電
対４を配設してある燃焼装置において、前記熱
電対４の検出対象炎に対して保炎作用する保炎
板２Ｃを設け、その保炎板２Ｃからの熱伝導で
加熱される状態に前記熱電対４を形成し、前記
保炎板２Ｃを検出対象炎の前記炎口２ａに対し
て位置変更調整自在とする位置調整機構２ｂ，
２ｃを設けた燃焼装置の燃焼状態検出部。 ２ 前記熱電対４が、前記保炎板２Ｃと別体で、
その保炎板２Ｃに熱伝導状態に接当して連結す
るものである実用新案登録請求の範囲第１項に
記載の燃焼装置の燃焼状態検出部。 ３ 前記熱電対４がそれを形成する２つの熱電対
材４Ａ，４Ｂの一方を前記保炎板２Ｃをもつて
構成されたものである実用新案登録請求の範囲
第１項に記載の燃焼装置の燃焼状態検出部。[Claims for Utility Model Registration] 1. In a combustion apparatus in which a thermocouple 4 for detecting a combustion state that generates a thermoelectromotive force according to the heating temperature is disposed near the flame port 2a of the burner 2, A flame-holding plate 2C that acts as flame-holding for the flame to be detected in pair 4 is provided, the thermocouple 4 is formed in a state where it is heated by heat conduction from the flame-holding plate 2C, and the flame holding plate 2C is detected. a position adjustment mechanism 2b that can freely change and adjust the position relative to the flame port 2a of the target flame;
A combustion state detection section of a combustion device provided with 2c. 2. The thermocouple 4 is separate from the flame stabilizing plate 2C,
The combustion state detection unit of the combustion apparatus according to claim 1, which is connected to the flame stabilizing plate 2C in a thermally conductive state. 3. The combustion apparatus according to claim 1, wherein the thermocouple 4 is constructed by having the flame stabilizing plate 2C as one of the two thermocouple materials 4A and 4B forming the thermocouple 4. Combustion state detection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987130630U JPH0330691Y2 (en) | 1987-08-27 | 1987-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987130630U JPH0330691Y2 (en) | 1987-08-27 | 1987-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6438458U JPS6438458U (en) | 1989-03-08 |
| JPH0330691Y2 true JPH0330691Y2 (en) | 1991-06-28 |
Family
ID=31385971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987130630U Expired JPH0330691Y2 (en) | 1987-08-27 | 1987-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0330691Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03107654U (en) * | 1990-02-20 | 1991-11-06 | ||
| JP2509499Y2 (en) * | 1990-02-20 | 1996-09-04 | 三洋電機株式会社 | Original stop type gas instantaneous water heater |
| JP6405213B2 (en) * | 2014-12-04 | 2018-10-17 | 株式会社ハーマン | Water heater abnormality detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426519U (en) * | 1977-07-20 | 1979-02-21 | ||
| JPS599017A (en) * | 1982-07-07 | 1984-01-18 | Matsushita Electric Ind Co Ltd | Compound molding member |
| JPS6123052B2 (en) * | 1979-07-27 | 1986-06-04 | Daikin Kogyo Co Ltd |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123052U (en) * | 1984-07-10 | 1986-02-10 | シ−ケ−デイコントロ−ルズ株式会社 | Disappearance detection safety device |
-
1987
- 1987-08-27 JP JP1987130630U patent/JPH0330691Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426519U (en) * | 1977-07-20 | 1979-02-21 | ||
| JPS6123052B2 (en) * | 1979-07-27 | 1986-06-04 | Daikin Kogyo Co Ltd | |
| JPS599017A (en) * | 1982-07-07 | 1984-01-18 | Matsushita Electric Ind Co Ltd | Compound molding member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6438458U (en) | 1989-03-08 |
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