JPH03279706A - Combustion control method of hot water supplier using gas - Google Patents
Combustion control method of hot water supplier using gasInfo
- Publication number
- JPH03279706A JPH03279706A JP2078515A JP7851590A JPH03279706A JP H03279706 A JPH03279706 A JP H03279706A JP 2078515 A JP2078515 A JP 2078515A JP 7851590 A JP7851590 A JP 7851590A JP H03279706 A JPH03279706 A JP H03279706A
- Authority
- JP
- Japan
- Prior art keywords
- calorific value
- burner
- gas
- burners
- combustion
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 5
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010079 rubber tapping 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
- F23N1/002—Regulating fuel supply using electronic means
-
- 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
- F23N2235/18—Groups of two or more valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/02—Controlling two or more burners
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
【発明の詳細な説明】 （イ） 産業上の利用分野 本発明は、ガス給湯機における燃焼制御方法に関する。[Detailed description of the invention] (b) Industrial application field The present invention relates to a combustion control method in a gas water heater.
（ロ） 従来の技術
従来、それぞれ異なるガス通路に連通した発熱量が異な
るバーナで燃焼器を構成し、燃焼させるバーナの選択及
び数の増減によって、発生熱量を調節するようにしたガ
ス給湯機がある。(b) Conventional technology Conventionally, there has been a gas water heater in which a combustor is configured with burners each communicating with different gas passages and having different calorific values, and the amount of heat generated is adjusted by selecting and increasing or decreasing the number of burners to be combusted. be.
かかる給湯機の燃焼制御において、大発熱量のバーナだ
け燃焼しているとき、発熱量を大発熱量のバーナの最小
発熱量以下に減少させようとすると、第８図で示すよう
に、まず、大発熱量のバーナの発熱量を最小発熱量Ｂま
で減少させ、次いで、小発熱量のバーナに火移りさせる
ために、一旦両方のバーナを燃焼させ、その後、大発熱
量のバーナを消火し、小発熱量のバーナの発熱量を調節
して目的の発熱量Ｇへと移行させるという制御が行われ
ている。In the combustion control of such a hot water heater, when only the burner with a large calorific value is burning, if an attempt is made to reduce the calorific value to below the minimum calorific value of the burner with a large calorific value, as shown in FIG. In order to reduce the calorific value of the burner with a large calorific value to the minimum calorific value B, and then transfer the flame to the burner with a small calorific value, first burn both burners, then extinguish the burner with a large calorific value, Control is performed to adjust the heat value of a burner with a small heat value to shift it to a target heat value G.
（ハ） 発明が解決しようとする課題
ところが、上記の燃焼制御では、発熱量を減少させよう
としているにもかかわらず、大発熱量のバーナから小発
熱量のバーナに火移りさせたとき、両方のバーナが燃焼
しているため、この時の出湯温度変化を第９図で示すと
、Ｔ３からＴ４に出湯温度を下げるという目的に反して
、一旦出湯温度がＴ５に上昇し、その後、出湯温度が徐
々にＴｉに下がることになり、スムースに発熱量を減少
させることかできないという不具合があった。(c) Problems to be Solved by the Invention However, although the combustion control described above is intended to reduce the calorific value, when the flame is transferred from a burner with a large calorific value to a burner with a small calorific value, both Since the burner is burning, the change in the outlet temperature at this time is shown in Figure 9. Contrary to the purpose of lowering the outlet temperature from T3 to T4, the outlet temperature rises to T5, and then the outlet temperature decreases. There was a problem in that the amount of heat gradually decreased to Ti, and the amount of heat generated could only be reduced smoothly.
（ニ） 課題を解決する手段
本発明では、それぞれ発熱量が異なる複数個のバーナを
具備したガス給湯機において、発熱量を減少するときは
、一旦全部のバーナを消火し、その後、減少後の発熱量
に対応する発熱量のバーナに点火することを特徴とする
ガス給湯機における燃焼制御方法を提供せんとするもの
である。(d) Means for Solving the Problems In the present invention, in a gas water heater equipped with a plurality of burners each having a different calorific value, when reducing the calorific value, all the burners are once extinguished, and then the It is an object of the present invention to provide a combustion control method in a gas water heater, which is characterized by igniting a burner with a calorific value corresponding to the calorific value.
（ホ） 作用・効果
本発明によれば、ガス燃焼の熱量を減少するときは、一
旦全部のバーナを消火し、しかるのち、減少後の熱量に
対応した発熱量のバーナに点火するようにしているので
、両方のバーナが燃焼して発熱量が大きくなるというこ
とがなく、制御の目的にしたがって、スムースに発熱量
を減少させることができ、所望の出湯温度をスムースに
得ることができる。(E) Functions and Effects According to the present invention, when reducing the heat value of gas combustion, all burners are once extinguished, and then burners with a heat value corresponding to the reduced heat value are ignited. Therefore, the amount of heat generated does not increase due to combustion in both burners, and the amount of heat generated can be smoothly reduced according to the purpose of control, and the desired hot water temperature can be smoothly obtained.
（へ） 実施例
本発明の実施例を添（＝１図に基づき具体的に説明する
。(f) Example An example of the present invention will be explained in detail based on the attached figure (=1).
第１図、第２図はガス給湯機（Ｒ）を示し、略直方体形
状のケース（１）内部の下方に燃焼部（Ｓ）、同上部に
熱交換部（Ｔ）を配設している。Figures 1 and 2 show a gas water heater (R), in which a combustion part (S) is arranged in the lower part of the inside of a substantially rectangular parallelepiped case (1), and a heat exchange part (T) is arranged in the upper part. .
燃焼部（Ｓ）は略方形筒状の燃焼室（２）の内部に、４
個のノズル（ｎ）を有する第１バーナ（旧）と、８個の
ノズル（ｎ）を有する第２バーナ（ｂ２）とを配設して
おり、各バーナ（ｂｉ）（ｂ２）は空気室（３）を介し
てファン（４）と連通しており、各バーナ（ｂＬ）（ｂ
２）の空気室（３）に面した開口部に、ガス供給管（５
）と連通した各ノズル（ｎ）をそれぞれ臨ませており、
ガス供給管（５）から供給されるガスと、ファン（４）
で圧入された空気室（３）からの空気とを、各バーナ（
旧）（ｂ２）の内部で混合しながら、各バーナ（ｂｌ）
（ｂ２）の上部から燃焼室（２）中に噴出させ、これを
燃焼させるようにしている。（１０）は排気口である。The combustion part (S) has a combustion chamber (2) having a substantially rectangular cylindrical shape, and has four
The first burner (old) has eight nozzles (n), and the second burner (b2) has eight nozzles (n), and each burner (bi) (b2) has an air chamber. It communicates with the fan (4) via (3), and each burner (bL) (b
Insert the gas supply pipe (5) into the opening facing the air chamber (3) of 2).
), each nozzle (n) communicating with the
Gas supplied from gas supply pipe (5) and fan (4)
The air from the air chamber (3) press-fitted into each burner (
While mixing inside the old) (b2), each burner (bl)
(b2) is ejected from the upper part into the combustion chamber (2) to be combusted. (10) is an exhaust port.
熱交換部（Ｔ）は略方形筒状の燃焼筒（６）と、ケース
（１）の下面を貫通した給水管（７）と出湯管（８）と
の間に設けた受熱管（９）とて構成されており、受熱管
（９）は給水管（７）の側から燃焼筒（６）の下部外周
面に巻回し、次いで燃焼筒（６）の上方内部を蛇行状に
往復しており、燃焼室（２）からの燃焼ガスで同受熱管
（９）中を流れる水を加熱して出湯管（８）からガス給
湯機（Ｒ）の外部に吐出するようにしている。The heat exchange part (T) includes a combustion cylinder (6) having a substantially rectangular cylindrical shape, and a heat receiving pipe (9) provided between a water supply pipe (7) and a hot water outlet pipe (8) that penetrate the bottom surface of the case (1). The heat receiving tube (9) is wound around the lower outer peripheral surface of the combustion tube (6) from the water supply tube (7) side, and then reciprocated in a meandering manner inside the upper part of the combustion tube (6). The water flowing through the heat receiving pipe (9) is heated by the combustion gas from the combustion chamber (2) and is discharged from the hot water outlet pipe (8) to the outside of the gas water heater (R).
第３図は、各バーナ（ｂｌ）（ｂ２）のノズル（ｎ）と
ガス供給管（５）との接続及び点火構造を示しており、
（Ｐｖ）はガス流量を調節するガバナ付比例弁、（Ｓｌ
）（Ｓ２）はガス流通を０Ｎ−ＯＦＦする第１、第２切
替弁、（旧） （Ｍ２）はガス供給管（５）と各ノズル
（ｎ）間に介設した第１、第２マニフオルド、（１ｇ）
は第１バーナ（ｂｌ）の端部に配設したイグナイタ、（
Ｐｒ）はノズルの燃焼状態を検出するためのフレームロ
ッドであり、第１、第２バーナ（ｂｌ） （ｂ２）間に
配設されている。FIG. 3 shows the connection between the nozzle (n) of each burner (bl) (b2) and the gas supply pipe (5) and the ignition structure,
(Pv) is a proportional valve with a governor that adjusts the gas flow rate, (Sl
) (S2) are the first and second switching valves that turn gas flow ON and OFF, (old) (M2) are the first and second manifolds interposed between the gas supply pipe (5) and each nozzle (n). , (1g)
is an igniter installed at the end of the first burner (bl), (
Pr) is a flame rod for detecting the combustion state of the nozzle, and is disposed between the first and second burners (bl) (b2).
第４図は制御装置（Ｕ）の構成を示しており、マイクロ
プロセッサ（ＭＰＵ）と、入出力インターフェース（１
）（０）と、メモリ（Ｍ）とて構成されており、入力イ
ンターフェース（Ｉ）には、フレームロッド（Ｆｒ）、
運転ボタン（ｍｌ）、通水検出器（■２）、発熱量設定
ボタン（ｍ３）、出湯温度検出器（Ｔｉ１１）等が接続
し、出力インターフェース（０）には、イグナイタ（Ｉ
ｇ）、元弁（ＳＯ）、第１、第２切替弁（Ｓｌ、）（３
２）、ガバナ付比例弁（Ｐｖ）等が接続しており、メモ
リ（Ｍ）に上記ガス給湯機（Ｒ）を制御するプログラム
を記憶させている。Figure 4 shows the configuration of the control unit (U), which includes a microprocessor (MPU) and an input/output interface (1
) (0) and a memory (M), and the input interface (I) includes a frame rod (Fr),
The operation button (ml), water flow detector (■2), calorific value setting button (m3), hot water temperature detector (Ti11), etc. are connected, and the output interface (0) is connected to the igniter (I
g), main valve (SO), first and second switching valves (Sl,) (3
2) A proportional valve with a governor (Pv) and the like are connected, and a program for controlling the gas water heater (R) is stored in the memory (M).
第５図は制御装置（Ｕ）に接続した操作部（Ｈ）であり
、運転ボタン（ｎｌ）、発熱量設定ボタン（ｍ３）等の
操作ボタン及び運転状態の表示灯等が配設されている。Figure 5 shows the operation unit (H) connected to the control device (U), in which operation buttons such as the operation button (nl), heat generation setting button (m3), and operation status indicator lights are arranged. .
上記プログラム中、各バーナ（旧）（ｂ２）に点火する
ときは、第１、第２切替弁（ｓｔ）（Ｓ２）を開いて、
第１、第２バーナ（ｂｔ）（ｂ２）にガスを供給し、イ
グナイタ（１ｇ）を発火させて、第１バーナ（旧）の左
端のノズル（ｎ）の点火し、順送りに隣接のノズル（ｎ
）に火移りさせて、第１、第２バーナ（旧） （ｂ２）
の全部のノズル（ｎ）に点火する。During the above program, when igniting each burner (old) (b2), open the first and second switching valves (st) (S2),
Gas is supplied to the first and second burners (bt) (b2), the igniter (1g) is ignited, the left end nozzle (n) of the first burner (old) is ignited, and the adjacent nozzle (n) is ignited in order. n
), then remove the 1st and 2nd burners (old) (b2)
ignite all nozzles (n) of.
なお、この状態では、１２個のノズル（ｎ）か燃焼して
おり、ガス給湯機（Ｒ）は第６図のｄ−ｆの範囲の発熱
量（最大発熱量の約１７２〜最大発熱量）でガスを燃焼
させることができる。In this state, only 12 nozzles (n) are burning, and the gas water heater (R) has a calorific value in the range d-f in Figure 6 (approximately 172 of the maximum calorific value to the maximum calorific value). can burn gas.
この状態から、第１バーナ（ｂｌ）を消火すれば、第２
バーナ（ｂ２）の８個のノズル（ｎ）が燃焼しており、
ガス給湯機（Ｒ）は第６図ｂ −ｅの範囲の光熱量（最
大発熱量の約１／４〜最大発熱量の約２／３）でガスを
燃焼させることかできる。From this state, if the first burner (bl) is extinguished, the second
Eight nozzles (n) of burner (b2) are burning,
The gas water heater (R) can combust gas with the amount of light in the range shown in Fig. 6 b - e (approximately 1/4 of the maximum calorific value to approximately 2/3 of the maximum calorific value).
更に発熱量を減少させるときは、一旦、第２バナ（ｂ２
）を消火し、しかるのち、第１バーナ（ｂｌ）に点火し
て第１バーナ（旧）だけを燃焼状態にする。If you want to further reduce the calorific value, first turn the second banner (b2
) is extinguished, and then the first burner (bl) is ignited to bring only the first burner (old) into a combustion state.
この状態では、４個のノズル（ｎ）が燃焼しており、ガ
ス給湯機（Ｒ）は、第６図のａ −ｃの範囲の発熱量（
最小発熱量〜最大発熱量の約１／３）でガスを燃焼させ
ることができる。In this state, four nozzles (n) are burning, and the gas water heater (R) has a calorific value (a to c in Fig. 6).
The gas can be combusted with a minimum calorific value to approximately 1/3 of the maximum calorific value.
」１記のように、一旦両方のバーナ（ｂｉ）（ｂ２）を
消火し、次いで、第１バーナ（旧）たけ点火することで
、第７図で示すように、始めの出湯温度Ｔ１から次の出
湯温度Ｔ２にスムースに移行させることができる。”1, by extinguishing both burners (bi) and (b2) and then igniting the first burner (old), the temperature will change from the initial outlet temperature T1 to the next as shown in Figure 7. The hot water can be smoothly shifted to the outlet temperature T2.
発熱量を増加させるには、第１切替弁（Ｓｌ）を開き、
第１バーナ（ｂｌ）にガスを供給し、第２バーナ（ｂ２
）から火移りさせ、第１、第２バーナ（旧） （ｂ２）
の両方を燃焼状態にする。To increase the calorific value, open the first switching valve (Sl),
Gas is supplied to the first burner (bl) and the second burner (b2
) from the 1st and 2nd burners (old) (b2)
both of them are in a combustible state.
本発明の実施例は上記のように構成されており、ガバナ
（＝Ｊ比例弁（Ｐｖ）の開度調整と、第１、第２バーナ
（ｂｌ）（ｂ２）の燃焼のＯＮφＯＦＦにより、ガス給
湯機（Ｒ）の発熱量を大１１］に調節することができる
。The embodiment of the present invention is configured as described above, and gas hot water supply is performed by adjusting the opening of the governor (=J proportional valve (Pv) and turning ONφOFF the combustion of the first and second burners (bl) (b2). The calorific value of the machine (R) can be adjusted to 11].
特に、本発明の燃焼制御によれば、出湯温度を低下させ
るとき、第６図で示したように、両方のバーナが燃焼し
て発熱量が大きくなるという不具合が解消され、第７図
で示すように、途中で出湯温度を上昇させることなく、
スムースに光熱量を減少させることができ、スムースに
１」標の温度に移行させることができる。In particular, according to the combustion control of the present invention, when lowering the tapping temperature, the problem of burning both burners and increasing the calorific value as shown in FIG. 6 is solved, and the problem shown in FIG. 7 is solved. In this way, without raising the hot water temperature in the middle of the process,
The amount of light heat can be reduced smoothly, and the temperature can be smoothly brought to the 1'' mark.
第１図は本発明によるガス給湯機の全体正面図、第２図
は同側面図、第３図は各バーナのノズルとガス供給管と
の接続及び点火構造を示す模式図、第４図は制御装置の
構成を示すブロック図、第５図はガス給湯機の操作部の
正面図、第６図は本発明燃焼制御におけるバーナ点火タ
イムチャート、第７図は本発明燃焼制御におけるバーナ
と発熱量の関係を示すグラフ、第８図は従来の燃焼制御
におけるバーナと発熱量の関係を示すグラフ、第９図は
従来の燃焼制御におけるバーナ点火のタイムチャート。
（Ｒ）：ガス給湯機
（旧）：第１バーナ
（ｂ２） ：第２バーナFig. 1 is an overall front view of the gas water heater according to the present invention, Fig. 2 is a side view of the same, Fig. 3 is a schematic diagram showing the connection between the nozzle of each burner and the gas supply pipe and the ignition structure, and Fig. 4 is a schematic diagram showing the ignition structure. A block diagram showing the configuration of the control device, Fig. 5 is a front view of the operating section of the gas water heater, Fig. 6 is a burner ignition time chart in the combustion control of the present invention, and Fig. 7 is a burner and calorific value in the combustion control of the present invention. FIG. 8 is a graph showing the relationship between burners and calorific value in conventional combustion control, and FIG. 9 is a time chart of burner ignition in conventional combustion control. (R): Gas water heater (old): 1st burner (b2): 2nd burner
Claims (1)
ガス給湯機において、 発熱量を減少するときは、一旦全部のバーナを消火し、
その後、減少後の発熱量に対応する発熱量のバーナに点
火することを特徴とするガス給湯機における燃焼制御方
法。[Claims] 1) In a gas water heater equipped with a plurality of burners each having a different calorific value, when reducing the calorific value, all burners are temporarily extinguished,
A combustion control method in a gas water heater, characterized in that a burner with a calorific value corresponding to the reduced calorific value is then ignited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2078515A JPH03279706A (en) | 1990-03-26 | 1990-03-26 | Combustion control method of hot water supplier using gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2078515A JPH03279706A (en) | 1990-03-26 | 1990-03-26 | Combustion control method of hot water supplier using gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03279706A true JPH03279706A (en) | 1991-12-10 |
Family
ID=13664074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2078515A Pending JPH03279706A (en) | 1990-03-26 | 1990-03-26 | Combustion control method of hot water supplier using gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03279706A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5664504A (en) * | 1994-10-27 | 1997-09-09 | Kobayashi; Shizuo | Combustion apparatus having inverse temperature distribution by forced convection |
| CN113898949A (en) * | 2021-10-18 | 2022-01-07 | 东莞市艾瑞科热能设备有限公司 | Balanced control method of sectional type combustor, combustor and wall-mounted furnace |
-
1990
- 1990-03-26 JP JP2078515A patent/JPH03279706A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5664504A (en) * | 1994-10-27 | 1997-09-09 | Kobayashi; Shizuo | Combustion apparatus having inverse temperature distribution by forced convection |
| CN113898949A (en) * | 2021-10-18 | 2022-01-07 | 东莞市艾瑞科热能设备有限公司 | Balanced control method of sectional type combustor, combustor and wall-mounted furnace |
| CN113898949B (en) * | 2021-10-18 | 2023-05-26 | 东莞市艾瑞科热能设备有限公司 | Balanced control method of sectional type burner, burner and wall-mounted furnace |
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