JPH0565765B2 - - Google Patents
Info
- Publication number
- JPH0565765B2 JPH0565765B2 JP5395286A JP5395286A JPH0565765B2 JP H0565765 B2 JPH0565765 B2 JP H0565765B2 JP 5395286 A JP5395286 A JP 5395286A JP 5395286 A JP5395286 A JP 5395286A JP H0565765 B2 JPH0565765 B2 JP H0565765B2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- input
- flame
- electric field
- voltage
- 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 - Lifetime
Links
- 230000005684 electric field Effects 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 4
- 238000009841 combustion method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- 239000007789 gas Substances 0.000 description 21
- 238000002485 combustion reaction Methods 0.000 description 9
- 239000000446 fuel Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 235000013547 stew Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/082—Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
Landscapes
- 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)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、直流電源装置の負電極を金属製バ
ーナに接続して、電場により炎を前記バーナ側に
引き寄せる燃焼方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a combustion method in which a negative electrode of a DC power supply is connected to a metal burner and a flame is drawn toward the burner by an electric field.
従来、燃焼に際して常時バーナに負電極を接続
して、電場による炎のバーナ側への引き寄せによ
つて、インプツトが大きい時の炎のリフトを防止
できる技術を提案していた（実願昭60−25699号
参照）。
Conventionally, we have proposed a technology that prevents flame lift when the input is large by constantly connecting a negative electrode to the burner during combustion and using an electric field to draw the flame toward the burner (Utility Application 1986- (See No. 25699).
しかし、インプツトが小さくなつて、バーナか
らのガス噴出速度が減少すると、電場による炎の
引き寄せのために逆火が生じやすく、実際には最
小インプツトを余り小さくできなくて、ターンダ
ウン比が小さくなり、一層の改良の余地があつ
た。
However, as the input becomes smaller and the gas ejection speed from the burner decreases, backfire is likely to occur due to the pull of the flame by the electric field, and in reality, the minimum input cannot be made very small and the turndown ratio becomes smaller. , there was room for further improvement.
本発明の目的は、インプツトが大きい時の炎の
リフトを防止できるばかりで無く、そのために最
小インプツトが大きくなることを防止でき、ター
ンダウ比を大きくできるようにする点にある。 An object of the present invention is to not only prevent flame lift when the input is large, but also to prevent the minimum input from becoming large, thereby increasing the turndown ratio.
本発明の特徴手段は、直流電源装置の負電極に
接続されて電場で炎がバーナ側に引き寄せられる
ように構成されたバーナのインプツトを検出し、
その検出インプツトが大インプツトである設定値
以上の時にだけ前記電場による炎の引き寄せを行
わせることにあり、その作用効果は次の通りであ
る。
The characteristic means of the present invention is to detect an input of a burner connected to a negative electrode of a DC power supply and configured to draw a flame toward the burner by an electric field;
The purpose is to cause the flame to be attracted by the electric field only when the detected input is greater than a set value, which is a large input, and its effects are as follows.
つまり、バーナのインプツトが炎のリフトの危
険性のある設定値以上の大インプツトである時に
は、負電極をバーナに接続して、電場による炎の
バーナ側への引き寄せで炎のリフトを防止し、電
場を作用させない場合よりも大きいインプツトで
安定燃焼させる。
In other words, when the burner input is large enough to exceed the set value that poses a risk of flame lift, the negative electrode is connected to the burner to prevent flame lift by drawing the flame toward the burner using the electric field. Stable combustion is achieved with a larger input than when no electric field is applied.
そして、バーナのインプツトが炎のリフトの危
険性の無い、設定値未満の小さいインプツトであ
る時には、負電極とバーナの接続を断つて、電場
による炎のバーナ側への引き寄せで逆火する現象
を無くし、最小インプツトが大きくなることを防
止する。 When the burner input is a small input that is less than the set value and there is no risk of flame lift, the connection between the negative electrode and the burner is cut off to prevent backfire due to the flame being drawn toward the burner by the electric field. to prevent the minimum input from increasing.
したがつて、前述の従来例に比して、最大イン
プツトを同様に大きくできると共に、最小インプ
ツトを小にでき、ターンダウ比を十分に増大でき
る。 Therefore, compared to the conventional example described above, the maximum input can be similarly increased, the minimum input can be decreased, and the turndown ratio can be sufficiently increased.
その結果、加熱能力の大巾な変更が可能な状態
で常に安定燃焼を維持できるようになり、例え
ば、１台のコンロでもつて強火の必要な中華料理
から、とろ火の必要な煮こみなどをまかなつた
り、１台の瞬間式給湯器で暖房と風呂に必要な大
湯量から、手洗い程度の小湯量までまかなつたり
できるようになつた。
As a result, stable combustion can be maintained at all times while the heating capacity can be changed widely.For example, one stove can be used to cook Chinese dishes that require high heat, as well as stews that require low heat. It has become possible to use a single instantaneous hot water heater to supply everything from the large amount of hot water needed for heating and bathing to the small amount of hot water required for washing hands.
次に実施例を示す。 Next, examples will be shown.
第１図に示すように、金属製のケース１の下部
に金属製バーナ２を耐熱性の電気絶縁体３で取付
けると共に点火プラグ４を設け、ケース１の上部
にフインチユーブ式の熱交換器５を設け、バーナ
２と熱交換器５の間に燃焼室６を形成し、熱交換
器５の上方に排気フード７を設け、給水管８から
の冷水を熱交換器５でバーナ２により加熱して、
出湯栓V2付の給湯管９で湯を供給するための瞬
間式湯沸器を形成してある。 As shown in FIG. 1, a metal burner 2 is installed at the bottom of a metal case 1 with a heat-resistant electric insulator 3, and a spark plug 4 is provided, and a Finch-Ube heat exchanger 5 is installed at the top of the case 1. A combustion chamber 6 is formed between the burner 2 and the heat exchanger 5, an exhaust hood 7 is provided above the heat exchanger 5, and the cold water from the water supply pipe 8 is heated by the burner 2 in the heat exchanger 5. ,
A hot water supply pipe 9 with a tap V2 forms an instantaneous water heater for supplying hot water.
ガス量調節弁V1を有する管路１０からのガス
燃料をバーナ２に向かつて噴出するノズル１１を
ケース１の下部に取付け、燃焼用空気を供給する
電動式フアンＦをケース１の下部に接続し、ガス
燃料と燃焼用空気の全量を混合してバーナ２に供
給するように構成してある。 A nozzle 11 for ejecting gas fuel from a conduit 10 having a gas volume control valve V 1 toward a burner 2 is attached to the lower part of the case 1, and an electric fan F for supplying combustion air is connected to the lower part of the case 1. However, the entire amount of gas fuel and combustion air is mixed and supplied to the burner 2.
給水管８に水流スイツチ等の給水確認センサー
S1を、かつ、給湯管９にサーミスター等の水温検
出センサーS2を設け、操作部１２からの指令及び
上記両センサーS1，S2からの情報に基いて、ガス
量調節弁V1、フアンＦ及び点火プラグ４を自動
操作する第１制御器C1を設けてある。 Water supply confirmation sensor such as water flow switch on water supply pipe 8
S 1 and a water temperature detection sensor S 2 such as a thermistor in the hot water supply pipe 9, and based on commands from the operation unit 12 and information from both the above-mentioned sensors S 1 and S 2 , the gas amount regulating valve V 1 , the fan F and the spark plug 4 are provided.
高圧の直流電源装置１３にバーナ２及びアース
１４を電圧切換装置１５によつて接続し、電圧切
換装置１５に同調操作される２個の３位置切換用
スイツチ１５ａ，１５ｂを設けて、正電極にバ
ーナ２をかつ負電極にアース１４を接続する正
電圧付与状態、正負いずれの電極にもバーナ２を
接続しない無電場状態、負電極にバーナ２をか
つ正電極にアース１４を接続する負電圧付与状
態を選択できるように構成してある。また、ケー
ス１にアース１６を接続し、バーナ２と熱交換器
５の間に、正電圧付与状態では５〜10KVの電位
差をかつ負電圧付与状態では−５〜−10KVの電
位差を付与できるように構成してある。 The burner 2 and earth 14 are connected to a high-voltage DC power supply 13 through a voltage switching device 15, and two 3-position switching switches 15a and 15b operated in synchronization with the voltage switching device 15 are provided. A positive voltage application state where the burner 2 is connected to the negative electrode and the ground 14, a no-electric field state where the burner 2 is not connected to either the positive or negative electrode, and a negative voltage application where the burner 2 is connected to the negative electrode and the earth 14 is connected to the positive electrode. It is structured so that the state can be selected. Also, by connecting the ground 16 to the case 1, a potential difference of 5 to 10 KV can be applied between the burner 2 and the heat exchanger 5 when a positive voltage is applied, and a potential difference of -5 to -10 KV can be applied when a negative voltage is applied. It is structured as follows.
管路１０にガス量検出センサーS3を設け、その
センサーS3からの情報と操作部１２からの指令に
基いて電圧切換装置１５を、自動操作する第２制
御器C2を設けてある。 A gas amount detection sensor S 3 is provided in the conduit 10, and a second controller C 2 is provided that automatically operates the voltage switching device 15 based on information from the sensor S 3 and commands from the operating section 12.
上記操作部１２と第１及び第２制御器C1，C2
の詳細を第２図及び第３図により以下に説明す
る。 The operation unit 12 and the first and second controllers C 1 and C 2
The details will be explained below with reference to FIGS. 2 and 3.
操作部１２に運転指令手段１２ａ、停止指令手
段１２ｂ、湯温設定手段１２ｃ、電圧設定手段１
２ｄを設け、第１及び第２制御器C1，C2が次の
ように動作すべく構成してある。 The operation unit 12 includes an operation command means 12a, a stop command means 12b, a hot water temperature setting means 12c, and a voltage setting means 1.
2d, and the first and second controllers C 1 and C 2 are configured to operate as follows.
(イ) 運転指令手段１２ａから給湯指令を出すと、
給水確認センサーS1からの給水報知がある時に
だけ点火指示手段１７からガス量調節弁V1の
開弁指示、フアンＦの運転指示、点火プラグ４
の運転指示、電圧切換装置１５の操作指示が出
る。(a) When a hot water supply command is issued from the operation command means 12a,
Only when there is a water supply notification from the water supply confirmation sensor S1 , the ignition instruction means 17 issues an instruction to open the gas amount control valve V1 , an instruction to operate the fan F, and a spark plug 4.
Operation instructions for the voltage switching device 15 and operation instructions for the voltage switching device 15 are issued.
(ロ) 湯温設定手段１２ｃによる設定湯温と水温検
出センサーS2の検出温度が比較手段１８ａに指
示され、比較手段１８ａからの設定湯温と検出
湯温の偏差に基いて予め設定された弁開度が開
度指示手段１８ｂから、出力手段１８ｃに指示
され、開弁指示と弁開度指示に基いて出力手段
１８ｃによりガス量調節弁V1が所定の開度に
開かれて、バーナ２にガス燃料が供給される。(b) The hot water temperature set by the hot water temperature setting means 12c and the temperature detected by the water temperature detection sensor S2 are instructed to the comparing means 18a, and are set in advance based on the deviation between the hot water temperature set from the comparing means 18a and the detected hot water temperature. The valve opening degree is instructed from the opening degree instruction means 18b to the output means 18c, and based on the valve opening instruction and the valve opening degree instruction, the output means 18c opens the gas amount control valve V1 to a predetermined opening degree, and the burner 2 is supplied with gas fuel.
(ハ) 運転指示に基いて出力手段１９によりフアン
Ｆが作動されて、バーナ２に燃焼用空気がガス
燃料と混合して供給される。(c) The fan F is operated by the output means 19 based on the operation instruction, and combustion air is mixed with gas fuel and supplied to the burner 2.
(ニ) 運転指示に基いてタイマー２０ａが作動し、
タイマー２０ａからの指示に基いて出力手段２
０ｂにより点火プラグ４が設定時間だけ発火
し、バーナ２が点火される。(d) The timer 20a operates based on the driving instruction,
Output means 2 based on instructions from timer 20a
0b causes the spark plug 4 to ignite for a set time, and the burner 2 to ignite.
(ホ) 給湯中は、湯温設定手段１２ｃと水温検出セ
ンサーS2からの情報に基いて開度指示手段１８
ｂによりガス量調節弁V1が開度調整され、給
湯温度が設定範囲内に維持される。(e) During hot water supply, the opening direction indicating means 18 is set based on information from the hot water temperature setting means 12c and the water temperature detection sensor S2 .
The opening degree of the gas amount control valve V1 is adjusted by b, and the hot water temperature is maintained within the set range.
(ヘ) 電圧設定手段１２ｄにより指示されるガス量
とバーナ２への印加電圧の相関、並びに、ガス
量検出センサーS3の検出ガス量が電圧指示手段
２１ａに指示され、運転指令手段１２ａから操
作指示されている時は、バーナ２に印加すべき
電圧が電圧指示手段２１ａから出力手段２１ｂ
に指示され、出力手段２１ｂによる電圧切換装
置１５の操作で、第３図に示すように、検出ガ
ス量が少ない、つまりバーナ２の検出インプツ
トが小インプツトである設定値I1以下の時にだ
け、バーナ２に正電極を接続して、電場によ
る炎の加速で逆火を防止し、かつ、検出ガス量
が多い、つまりバーナ２の検出インプツトが大
インプツトである設定値I2以上の時にだけ、バ
ーナ２に負電極を接続して、電場による炎の
バーナ２側への引き寄せで炎のリフトを防止す
る。(f) The correlation between the gas amount instructed by the voltage setting means 12d and the voltage applied to the burner 2, as well as the gas amount detected by the gas amount detection sensor S3 are instructed to the voltage instruction means 21a, and the operation is performed from the operation command means 12a. When the instruction is given, the voltage to be applied to the burner 2 is output from the voltage instruction means 21a to the output means 21b.
When the detected gas amount is small, that is, the detected input of the burner 2 is less than the set value I1, which is a small input, as shown in FIG. 3, by operating the voltage switching device 15 by the output means 21b . A positive electrode is connected to the burner 2 to prevent flashback due to the acceleration of the flame by the electric field, and only when the detected gas amount is large, that is, the detected input of the burner 2 is greater than the set value I 2 , which is a large input. A negative electrode is connected to the burner 2 to prevent flame lift by drawing the flame toward the burner 2 side by an electric field.
要するに、電場を利用しない通常燃焼におけ
るインプツト範囲に比して、インプツトが小さ
い側も大きい側もインプツト範囲を拡げて、タ
ーンダーン比を大きくしてある。 In short, compared to the input range in normal combustion that does not utilize an electric field, the input range is expanded both on the small and large input sides, and the turn-turn ratio is increased.
(ト) 停止指令手段１２ｂから給湯停止指令を出す
と、消化指示手段２２と電圧指示手段２１ａに
指示が出て、消化指示手段２２による出力手段
１８ｃ，１９への指示で、ガス量調節弁V1が
全開になると共にフアンＦが停止され、また、
電圧指示手段２１ａによる出力手段２１ｂへの
指示で、バーナ２に電圧を印加しない無電場状
態に電圧切換装置１５が切換又は維持される。(G) When a hot water supply stop command is issued from the stop command means 12b, an instruction is issued to the extinguishing instructing means 22 and the voltage instructing means 21a, and the command from the extinguishing instructing means 22 to the output means 18c, 19 causes the gas amount regulating valve V to be activated. 1 is fully opened, fan F is stopped, and
The voltage switching device 15 is switched or maintained in a no-electric field state in which no voltage is applied to the burner 2 by an instruction from the voltage instruction means 21a to the output means 21b.
次に別実施例を説明する。 Next, another embodiment will be described.
実施対象とする設備は、ガスコンロや給湯器等
の各種家庭機器、ボイラーや炉等の各種産業設
備、その他いかなるものでもよい。 The equipment targeted for implementation may be various household appliances such as gas stoves and water heaters, various industrial equipment such as boilers and furnaces, and any other type of equipment.
バーナ２の具体構成は適当に選択でき、また、
使用する燃料は、都市ガス、天然ガス、プロパン
ガス、油、その他いかなるものでもよい。 The specific configuration of the burner 2 can be selected appropriately, and
The fuel used may be city gas, natural gas, propane gas, oil, or any other fuel.
直流電源装置１３の正電極にバーナ２を接続
する手段は必要な最小インプツトが余り小さくな
い場合には省略してもよい。 The means for connecting the burner 2 to the positive electrode of the DC power supply 13 may be omitted if the required minimum input is not too small.
バーナ２のインプツトを検出するに、ガス量調
節弁V1の開度検出、燃焼室６の温度検出、第１
制御器C1からガス量調節弁V1への開度指示情報
の取出し、その他適当な手段を利用できる。 The burner 2 input is detected by detecting the opening of the gas amount control valve V1 , detecting the temperature of the combustion chamber 6, and detecting the first
It is possible to take out the opening instruction information from the controller C 1 to the gas amount control valve V 1 or use other appropriate means.
バーナ２と直流電源装置１３との接続関係を切
換えるに、電圧切換装置１５や制御手段は適当に
変更でき、また、電圧切換装置１５を人為操作し
てもよい。 To switch the connection relationship between the burner 2 and the DC power supply 13, the voltage switching device 15 and the control means can be changed appropriately, or the voltage switching device 15 may be manually operated.
バーナ２を負電極や正電極に接続するか否
かの指標となるインプツトの設定値は、バーナ２
の特性等に見合つて適当に設定すればよい。 The input setting value, which is an indicator of whether or not burner 2 is connected to the negative electrode or positive electrode, is
It may be set appropriately depending on the characteristics, etc.
第１図ないし第３図は本発明の実施例を示し、
第１図は設備の概念図、第２図は制御構成のブロ
ツク図、第３図は電圧印加状態を示すグラフであ
る。
２……バーナ、１３……直流電源装置。
1 to 3 show embodiments of the present invention,
FIG. 1 is a conceptual diagram of the equipment, FIG. 2 is a block diagram of the control configuration, and FIG. 3 is a graph showing the voltage application state. 2...burner, 13...DC power supply device.
Claims (1)
２に接続して、電場により炎を前記バーナ２側に
引き寄せる燃焼方法であつて、前記バーナ２のイ
ンプツトを検出し、その検出インプツトが大イン
プツトである設定値以上の時にだけ前記電場によ
る炎の引き寄せを行わせる燃焼方法。 ２ 前記検出インプツトが小インプツトである別
の設定値以下の時にだけ、前記直流電源装置１３
の正電極を前記バーナ２に接続して、電場によ
り炎を加速する特許請求の範囲第１項に記載の方
法。[Claims] 1. A combustion method in which the negative electrode of a DC power supply device 13 is connected to a metal burner 2 and the flame is drawn toward the burner 2 by an electric field, and the input of the burner 2 is detected and the flame is drawn toward the burner 2. A combustion method in which the electric field causes the flame to be attracted only when the detected input exceeds a set value that is a large input. 2. Only when the detected input is less than another set value, which is a small input, the DC power supply 13 is activated.
2. A method as claimed in claim 1, in which the positive electrode of the burner is connected to the burner 2 and the flame is accelerated by an electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5395286A JPS62210323A (en) | 1986-03-12 | 1986-03-12 | Combustion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5395286A JPS62210323A (en) | 1986-03-12 | 1986-03-12 | Combustion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62210323A JPS62210323A (en) | 1987-09-16 |
| JPH0565765B2 true JPH0565765B2 (en) | 1993-09-20 |
Family
ID=12957053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5395286A Granted JPS62210323A (en) | 1986-03-12 | 1986-03-12 | Combustion method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62210323A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07113455B2 (en) * | 1990-10-19 | 1995-12-06 | 株式会社ノーリツ | Burner with blowout prevention device |
-
1986
- 1986-03-12 JP JP5395286A patent/JPS62210323A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62210323A (en) | 1987-09-16 |
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