JP2003074838A - Combustion control device - Google Patents
Combustion control deviceInfo
- Publication number
- JP2003074838A JP2003074838A JP2001268210A JP2001268210A JP2003074838A JP 2003074838 A JP2003074838 A JP 2003074838A JP 2001268210 A JP2001268210 A JP 2001268210A JP 2001268210 A JP2001268210 A JP 2001268210A JP 2003074838 A JP2003074838 A JP 2003074838A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- dme
- lpg
- proportional valve
- 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.)
- Pending
Links
Landscapes
- Feeding And Controlling Fuel (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガス種に応じてバ
ーナへのガス通路を切り替える燃焼制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion control device for switching a gas passage to a burner according to a gas type.
【０００２】[0002]
【従来の技術】現在、家庭用のガス種としては、主に都
市ガスとＬＰＧ（液化石油ガス）が用いられているが、
ＬＰＧはやや高価である。そこで、最近、安価なガスで
あるＤＭＥ（ジメチルエーテル）をＬＰＧの代替燃料と
して使用することが検討されている。この場合、ＤＭＥ
とＬＰＧとはウォッベ指数（ＷＩ）が大幅に異なるため
に、ＬＰＧ用のガス器具にそのままＤＭＥを供給する
と、ガス比例弁の開度を大幅に変えなくてはならない。
ＭＣ（ムービングコイル）型のガス比例弁では、バーナ
へのインプット（単位時間当たりの発熱量）を等しくす
るためには、電流値を１／（ＷＩの比）２にする必要が
ある。従って、ＬＰＧの代わりにＤＭＥを供給すると、
ＤＭＥのＷＩはＬＰＧのＷＩの約１／２なので、ガス比
例弁への電流値を４倍にしなくてはならず、これはガス
比例弁の安定動作範囲をこえてしまい、ガス器具の燃焼
や出力などの性能が悪化してしまう。尚、ＤＭＥのＷＩ
は、１２４２０ｋｃａｌ／Ｎｍ３であり、ＬＰＧのＷＩ
は、ＬＰＧとして７５％プロパン−２５％ブタンを用い
たとすると、２０１４０ｋｃａｌ／Ｎｍ３である。この
ため、ＤＭＥ用のガス比例弁を備えた新たなガス器具を
開発する必要がある。2. Description of the Related Art Currently, city gas and LPG (liquefied petroleum gas) are mainly used as household gas species.
LPG is rather expensive. Therefore, recently, the use of inexpensive gas DME (dimethyl ether) as an alternative fuel for LPG has been studied. In this case, DME
Since the Wobbe index (WI) of LPG and that of LPG are significantly different from each other, if DME is directly supplied to the gas appliance for LPG, the opening of the gas proportional valve must be significantly changed.
In the MC (moving coil) type gas proportional valve, it is necessary to set the current value to 1 / (WI ratio) 2 in order to equalize the input (heat generation amount per unit time) to the burner. Therefore, if DME is supplied instead of LPG,
Since the WI of DME is about 1/2 of the WI of LPG, the current value to the gas proportional valve must be quadrupled, which exceeds the stable operation range of the gas proportional valve, which may cause combustion of gas appliances or Performance such as output deteriorates. WI of DME
Is 12420 kcal / Nm 3 and WI of LPG
Is 2,140 kcal / Nm 3 when 75% propane-25% butane is used as LPG. Therefore, it is necessary to develop a new gas appliance equipped with a DME gas proportional valve.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、ＤＭＥ
の供給は現在のところ充分なものではないので、常にＤ
ＭＥを使い続けることができる保障もなく、ＤＭＥの供
給が滞った場合にはＬＰＧを使う等、ＬＰＧをＤＭＥに
置き換えるにしても当面の間はＤＭＥとＬＰＧとの並行
使用を考えなければならない。このため、ＤＭＥ用のガ
ス器具に置き換えても、今度はＬＰＧの使用時に、電流
値がガス比例弁の安定動作範囲を下回ってしまい、ガス
器具の燃焼や出力などの性能が悪化してしまう。本発明
の燃焼制御装置は上記課題を解決し、複数の燃料ガスを
並行使用しても、ガス器具の燃焼や出力などの性能を良
好に維持することを目的とする。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Supply is currently not sufficient, so always D
Even if the LPG is replaced with DME, such as when the supply of DME is delayed, there is no guarantee that ME can be used continuously, and for the time being, it is necessary to consider parallel use of DME and LPG. For this reason, even if it is replaced with a gas appliance for DME, when the LPG is used this time, the current value falls below the stable operation range of the gas proportional valve, and the performance such as combustion and output of the gas appliance deteriorates. An object of the combustion control device of the present invention is to solve the above problems and to maintain good performance such as combustion and output of a gas appliance even when a plurality of fuel gases are used in parallel.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決する本発
明の請求項１記載の燃焼制御装置は、燃料ガスを燃焼す
るバーナと、上記バーナへ燃料ガスを供給する複数のガ
ス通路と、上記バーナへ供給するガス種を設定するガス
種設定手段と、上記ガス種設定手段により設定されたガ
ス種に基づいて、上記複数のガス通路から使用するガス
通路を決定するガス通路決定手段とを備え、上記各ガス
通路に、それぞれ制御範囲の異なるガス比例弁を設けた
ことを要旨とする。A combustion control apparatus according to claim 1 of the present invention which solves the above-mentioned problems, includes a burner for burning fuel gas, a plurality of gas passages for supplying the fuel gas to the burner, and A gas type setting means for setting a gas type to be supplied to the burner; and a gas passage determining means for determining a gas passage to be used from the plurality of gas passages based on the gas type set by the gas type setting means. The gist is that gas proportional valves having different control ranges are provided in the respective gas passages.
【０００５】また、本発明の請求項２記載の燃焼制御装
置は、上記請求項１記載の燃焼制御装置において、上記
バーナへ供給される燃料ガスは、ＬＰＧとＤＭＥとであ
ることを要旨とする。A combustion control device according to a second aspect of the present invention is the combustion control device according to the first aspect, wherein the fuel gas supplied to the burner is LPG and DME. .
【０００６】上記構成を有する本発明の請求項１記載の
燃焼制御装置は、ガス種設定手段により設定された供給
ガス種に基づいて、ガス通路決定手段が使用するガス通
路を決定して、設定された種類の燃料ガスがこの決定さ
れたガス通路からバーナに供給される。そして、選択さ
れたガス通路には、それぞれのガス種に対応した制御範
囲の比例弁が設けられているので、バーナへの供給ガス
量を安定して制御できる。In the combustion control device according to claim 1 of the present invention having the above structure, the gas passage used by the gas passage determining means is determined and set based on the supply gas species set by the gas species setting means. The specified type of fuel gas is supplied to the burner through the determined gas passage. Since the selected gas passage is provided with a proportional valve having a control range corresponding to each gas type, the amount of gas supplied to the burner can be stably controlled.
【０００７】また、本発明の請求項２記載の燃焼制御装
置は、ＬＰＧとＤＭＥとの並行使用が可能となる。Further, in the combustion control device according to the second aspect of the present invention, the LPG and the DME can be used in parallel.
【０００８】[0008]
【発明の実施の形態】以上説明した本発明の構成・作用
を一層明らかにするために、以下本発明の燃焼制御装置
の好適な実施形態について説明する。BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the configuration and operation of the present invention described above, preferred embodiments of the combustion control device of the present invention will be described below.
【０００９】図１は、本発明の一実施形態としての燃焼
制御装置を適用した給湯器の概略構成図である。給湯器
１は、器具本体２内に燃焼室３が設けられ、その下方に
ＤＣモータ４と連結した給気ファン５が取り付けられ
る。燃焼室３内には、燃料ガスと給気ファン５からの一
次空気との混合ガスを燃焼するバーナ６と、バーナ６の
燃焼熱により通水を加熱するフィンチューブ式の熱交換
器７とが設けられる。燃焼室３の上部には、熱交換器７
で熱交換後の燃焼排気を器体外へ排出する排気口８が形
成される。FIG. 1 is a schematic configuration diagram of a water heater to which a combustion control device according to an embodiment of the present invention is applied. In the water heater 1, a combustion chamber 3 is provided in a device body 2, and an air supply fan 5 connected to a DC motor 4 is attached below the combustion chamber 3. In the combustion chamber 3, there are provided a burner 6 which burns a mixed gas of fuel gas and primary air from the air supply fan 5, and a fin-tube heat exchanger 7 which heats water by the combustion heat of the burner 6. It is provided. At the upper part of the combustion chamber 3, a heat exchanger 7
An exhaust port 8 for discharging the combustion exhaust gas after heat exchange to the outside of the body is formed.
【００１０】器具本体２内に設けられる通水管は、上流
から順に、冷水の入口となる給水管９、熱交換器７に設
けられる伝熱管１０、湯の出口となる出湯管１１からな
る。この給水管９には、水流センサや水ガバナを備える
水側制御ユニット１２と入水温サーミスタ１３とが設け
られ、また、出湯管１１には出湯温サーミスタ１４が設
けられる。The water flow pipe provided in the equipment main body 2 comprises, in order from the upstream side, a water supply pipe 9 serving as an inlet for cold water, a heat transfer pipe 10 provided for the heat exchanger 7, and a hot water outlet pipe 11 serving as an outlet for hot water. The water supply pipe 9 is provided with a water side control unit 12 including a water flow sensor and a water governor, and an incoming water temperature thermistor 13, and a hot water outlet pipe 11 is provided with an outgoing hot water temperature thermistor 14.
【００１１】器具本体２の底部には、ＬＰＧあるいはＤ
ＭＥが供給される共通のガス接続口１５が設けられる。
ガス接続口１５からバーナ６へのガス供給経路として設
けられる主ガス管１６は、その途中がＬＰＧの供給経路
となる第一ガス管１７とＤＭＥの供給経路となる第二ガ
ス管１８との二流路に分割される。主ガス管１６には主
電磁弁１９が設けられ、第一ガス管１７には上流から順
にＬＰＧ用の制御範囲に設定された第一比例弁２０とガ
ス流路を開閉する第一電磁弁２１とが設けられ、第二ガ
ス管１８には上流から順にＤＭＥ用の制御範囲に設定さ
れた第二比例弁２２とガス流路を開閉する第二電磁弁２
３とが設けられる。主ガス管１６の先端には、ガス噴出
ノズルが装着され、バーナ６の燃料ガス吸入口に臨んで
配置される。At the bottom of the instrument body 2, LPG or D
A common gas connection port 15 to which ME is supplied is provided.
The main gas pipe 16 provided as a gas supply route from the gas connection port 15 to the burner 6 has a two-stream structure of a first gas pipe 17 serving as an LPG supply route and a second gas pipe 18 serving as a DME supply route in the middle thereof. Divided into roads. The main gas pipe 16 is provided with a main solenoid valve 19, and the first gas pipe 17 is provided with a first proportional valve 20 set in the control range for the LPG in order from the upstream side and a first solenoid valve 21 for opening and closing the gas passage. And a second solenoid valve 2 for opening and closing the gas flow path, which is provided in the second gas pipe 18 in order from the upstream to the control range for DME.
And 3 are provided. A gas ejection nozzle is attached to the tip of the main gas pipe 16 and is arranged so as to face the fuel gas intake port of the burner 6.
【００１２】主電磁弁１９や、第一比例弁２０、第一電
磁弁２１、第二比例弁２２、第二電磁弁２３等は、給湯
器１の燃焼を制御するバーナコントローラ２５（以下、
バーコン２５と略称する）に接続される。バーコン２５
には、ガス接続口１５から供給される燃料ガスがＬＰＧ
であるかＤＭＥであるかを設定するガス種設定レバー２
７が設けられる。このバーコン２５は、マイコンを主要
部として構成され、給湯制御だけでなく、ガス種設定レ
バー２７により設定された供給ガス種に基づいて、第一
電磁弁２１と第二電磁弁２３とを開閉操作してガス供給
経路を切替える。また、給湯器１は、バーコン２５を遠
隔操作するリモコン２６を備え、このリモコン２６に
は、給湯開始スイッチや給湯温度設定スイッチ等が設け
られる。The main solenoid valve 19, the first proportional valve 20, the first solenoid valve 21, the second proportional valve 22, the second solenoid valve 23, etc., are burner controllers 25 (hereinafter, referred to as burner controllers 25 for controlling the combustion of the water heater 1).
It is connected to a barcon 25). Barcon 25
The fuel gas supplied from the gas connection port 15 is LPG.
Type setting lever 2 for setting whether it is DME or DME
7 is provided. The bar controller 25 is mainly composed of a microcomputer, and not only controls the hot water supply but also operates the first solenoid valve 21 and the second solenoid valve 23 based on the supply gas type set by the gas type setting lever 27. Then, the gas supply path is switched. Further, the water heater 1 includes a remote controller 26 for remotely operating the bar controller 25, and the remote controller 26 is provided with a hot water supply start switch, a hot water temperature setting switch, and the like.
【００１３】この様に構成された給湯器１のバーコン２
５の行う処理について図２のフローチャートを用いて説
明する。先ず、図示しない給湯栓を開くことにより給水
管９に水が流れると、水側制御ユニット１２内の水流セ
ンサからの水流信号を検知し、給気ファン５をＤＣモー
タ４の駆動により回転させてプリパージを開始すると共
に、ガス種設定レバー２７により設定された供給ガス種
を読み込む（Ｓ１）。次に、使用ガス種がＬＰＧと入力
設定されている場合には、第一電磁弁２１を開弁してガ
ス供給経路として第一ガス管１７を用いる（Ｓ２，
３）。一方、使用ガス種がＤＭＥと入力設定されている
場合には、第二電磁弁２３を開弁してガス供給経路とし
て第二ガス管１８を用いる（Ｓ２，４）。The bar controller 2 of the water heater 1 configured as described above
The process performed by No. 5 will be described with reference to the flowchart of FIG. First, when water flows into the water supply pipe 9 by opening a hot water tap (not shown), a water flow signal from a water flow sensor in the water side control unit 12 is detected, and the air supply fan 5 is rotated by driving the DC motor 4. The prepurge is started, and the supply gas type set by the gas type setting lever 27 is read (S1). Next, when the type of gas used is LPG, the first electromagnetic valve 21 is opened and the first gas pipe 17 is used as the gas supply path (S2.
3). On the other hand, when the type of gas used is DME, the second electromagnetic valve 23 is opened and the second gas pipe 18 is used as the gas supply path (S2, 4).
【００１４】次に、入力設定されたガス種に対応する空
燃比制御データを選択する（Ｓ５）。この空燃比制御デ
ータは、各ガス種毎に、要求インプットＩｐ（後述す
る）に対する比例弁電流Ｉと給気ファン５の回転数との
目標制御値を表すもので不揮発性メモリに記憶されてい
る。この比例弁電流Ｉは、ＬＰＧが入力設定されている
場合には、第一比例弁２０への電流Ｉ１であり、ＤＭＥ
が入力設定されている場合には、第二比例弁２２への電
流Ｉ２である。そして、この第一比例弁電流Ｉ１は第一
比例弁２０の安定動作範囲となるように、第二比例弁電
流Ｉ２は第二比例弁２２の安定動作範囲となるように設
定される。第一比例弁電流Ｉ１の調節範囲におけるＬＰ
Ｇのインプットと、第二比例弁電流Ｉ２の調節範囲にお
けるＤＭＥのインプットとの制御範囲が等しくなるよう
に、第一比例弁２０と第二比例弁２２とは設計されてい
る。Next, the air-fuel ratio control data corresponding to the input and set gas type is selected (S5). The air-fuel ratio control data represents a target control value for the proportional valve current I and the rotation speed of the air supply fan 5 with respect to the required input Ip (described later) for each gas type and is stored in the nonvolatile memory. . This proportional valve current I is a current I1 to the first proportional valve 20 when LPG is set as an input, and DME
Is input, the current is I2 to the second proportional valve 22. Then, the first proportional valve current I1 is set so as to be in the stable operation range of the first proportional valve 20, and the second proportional valve current I2 is set so as to be in the stable operation range of the second proportional valve 22. LP in the adjustment range of the first proportional valve current I1
The first proportional valve 20 and the second proportional valve 22 are designed so that the control range of the input of G and the input of DME in the adjustment range of the second proportional valve current I2 are equal.
【００１５】続いて、リモコン２６で設定された出湯温
度と入水温サーミスタ１３で検出された入水温度との温
度差に入水流量を乗じて要求インプットＩｐを算出し、
選択された空燃比制御データに基づいて、ＬＰＧが供給
される場合には第一比例弁電流Ｉ１と給気ファン５の回
転数とを、ＤＭＥが供給される場合には第二比例弁電流
Ｉ２と給気ファン５の回転数とを制御して燃焼制御を開
始する。この燃焼制御中に、出湯温サーミスタ１４で検
出される湯温と設定温度とに温度差があると、熱交換器
７の出口温度を一定に保たせるように第一比例弁電流Ｉ
１あるいは第二比例弁電流Ｉ２を連続的に補正すると共
に、常にガス量と給気量とが所定の関係に保たれるよう
に給気ファン５の回転数も補正するように燃焼制御を行
う（Ｓ６）。Next, the required input Ip is calculated by multiplying the temperature difference between the outlet hot water temperature set by the remote controller 26 and the incoming water temperature detected by the incoming water temperature thermistor 13 by the incoming water flow rate.
Based on the selected air-fuel ratio control data, the first proportional valve current I1 and the rotation speed of the air supply fan 5 are supplied when LPG is supplied, and the second proportional valve current I2 is supplied when DME is supplied. And the rotation speed of the air supply fan 5 are controlled to start combustion control. During this combustion control, if there is a temperature difference between the hot water temperature detected by the hot water temperature thermistor 14 and the set temperature, the first proportional valve current I so as to keep the outlet temperature of the heat exchanger 7 constant.
Combustion control is performed such that the first or second proportional valve current I2 is continuously corrected, and the rotation speed of the air supply fan 5 is also corrected so that the gas amount and the air supply amount are always maintained in a predetermined relationship. (S6).
【００１６】以上説明した本実施形態の給湯器１によれ
ば、ＬＰＧとＤＭＥとを異なるガス通路で供給し、それ
ぞれの供給通路にＬＰＧを供給するのに適切な制御範囲
となる第一比例弁２０あるいはＤＭＥを供給するのに適
切な制御範囲となる第二比例弁２２を設けているので、
ＬＰＧとＤＭＥとを切替使用してもバーナ６へのインプ
ットを安定して制御できる。つまり、一つの比例弁でＬ
ＰＧとＤＭＥとに対応させようとすると、ＷＩが大幅に
異なるために比例弁の制御範囲が広くなりすぎてしま
い、安定して供給ガス量を調節するのは難しいが、本実
施形態では、供給ガス種別にガス通路を切り替えて、そ
れぞれのガス種に適した制御範囲のガス比例弁を使用す
ることにより、ＷＩの大幅に異なるＬＰＧとＤＭＥとを
切替使用してもバーナ６へのインプットを安定して制御
できるものである。しかも、ガス通路の切り替えは、バ
ーコン２５に設けられたガス種設定レバー２７の切替操
作で簡単に行うことができる。このため、サービスマン
等による煩雑なガス種転換作業を行うことなしに、ウォ
ッベ指数の異なるＬＰＧとＤＭＥとの何れを使用して
も、給湯器１の燃焼や出力等の性能を良好に維持して、
安全に使用することが出来る。従って、通常は値段の安
いＤＭＥを使用し、ＤＭＥの供給が滞った際にはＬＰＧ
を使用するといった、ＬＰＧとＤＭＥとの並行使用を使
い勝手良く行うことができ経済的である。According to the water heater 1 of the present embodiment described above, LPG and DME are supplied through different gas passages, and the first proportional valve is in a control range suitable for supplying LPG to the respective supply passages. 20 or the second proportional valve 22 which is a control range suitable for supplying DME,
Even if the LPG and DME are switched and used, the input to the burner 6 can be stably controlled. In other words, one proportional valve
If PG and DME are made to correspond to each other, the control range of the proportional valve becomes too wide because the WI is significantly different, and it is difficult to adjust the supply gas amount in a stable manner. By switching the gas passage for each gas type and using a gas proportional valve with a control range suitable for each gas type, the input to the burner 6 is stable even when switching between LPG and DME with significantly different WI. Can be controlled. Moreover, the gas passage can be easily switched by switching the gas type setting lever 27 provided on the bar controller 25. For this reason, the performance such as combustion and output of the water heater 1 can be maintained satisfactorily regardless of whether LPG or DME having different Wobbe indices is used without performing a complicated gas species conversion work by a service person or the like. hand,
It can be used safely. Therefore, normally, cheap DME is used, and when supply of DME is delayed, LPG is used.
It is economical because the parallel use of the LPG and the DME, such as the use of, can be conveniently performed.
【００１７】以上本発明の実施形態について説明した
が、本発明はこうした実施形態に何等限定されるもので
はなく、本発明の要旨を逸脱しない範囲において、種々
なる態様で実施し得ることは勿論である。例えば、本実
施形態では、供給される燃料ガスとしてＬＰＧとＤＭＥ
とが用いられているが、これに限られるものではなく、
例えば、ＬＰＧと都市ガス（１３Ａ及び１２Ａ）であっ
ても構わない。また、バーコン２５にガス種設定レバー
２７を設けるかわりに、リモコン２６にガス種設定スイ
ッチを設けても構わない。Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it goes without saying that the present invention can be implemented in various modes without departing from the scope of the present invention. is there. For example, in this embodiment, LPG and DME are used as the supplied fuel gas.
And are used, but are not limited to
For example, LPG and city gas (13A and 12A) may be used. Further, instead of providing the gas type setting lever 27 on the bar controller 25, a gas type setting switch may be provided on the remote controller 26.
【００１８】[0018]
【発明の効果】以上詳述したように、本発明の請求項１
記載の燃焼制御装置によれば、供給ガス種別にガス通路
を切り替えて、それぞれのガス種に適した制御範囲のガ
ス比例弁を使用できるので、ウォッベ指数の異なる燃料
ガスを切替使用しても、供給するガス量を安定して制御
できる。このため、異なるウォッベ指数の燃料ガスを並
行使用できるので、燃料ガスの価格や市場への供給状態
に応じて、使用するガス種を選択でき経済的である。As described in detail above, the first aspect of the present invention
According to the combustion control device described, by switching the gas passage to the type of the supply gas, it is possible to use the gas proportional valve of the control range suitable for each gas type, so even if the fuel gas with different Wobbe index is switched and used, The amount of gas supplied can be controlled stably. Therefore, fuel gas having different Wobbe indices can be used in parallel, and it is economical to select the gas type to be used according to the price of the fuel gas and the supply state to the market.
【００１９】更に、本発明の請求項２記載の燃焼制御装
置によれば、ＬＰＧとＤＭＥとの並行使用が可能となる
ので、安いＤＭＥの市場への供給が充分な場合はＤＭＥ
を使用し、ＤＭＥの供給が滞った際にはＬＰＧを使用す
ることができ、ＬＰＧからＤＭＥへの移行期において非
常に有用である。Further, according to the combustion control device of the second aspect of the present invention, since the LPG and the DME can be used in parallel, the DME can be supplied when the cheap DME is sufficiently supplied to the market.
And LPG can be used when the supply of DME is delayed, which is very useful during the transition period from LPG to DME.
【図１】本実施形態の燃焼制御装置を適用した給湯器の
概略構成図である。FIG. 1 is a schematic configuration diagram of a water heater to which a combustion control device of the present embodiment is applied.
【図２】本実施形態の燃焼制御装置を適用した給湯器の
作動制御を示すフローチャートである。FIG. 2 is a flowchart showing operation control of a water heater to which the combustion control device of the present embodiment is applied.
６…バーナ、１６…主ガス管、１７…第一ガス管、１８
…第二ガス管、２０…第一比例弁、２１…第一電磁弁、
２２…第二比例弁、２３…第二電磁弁、２５…バーコ
ン、２６…リモコン、２７…ガス種設定レバー。6 ... Burner, 16 ... Main gas pipe, 17 ... First gas pipe, 18
... second gas pipe, 20 ... first proportional valve, 21 ... first solenoid valve,
22 ... 2nd proportional valve, 23 ... 2nd solenoid valve, 25 ... Barcon, 26 ... Remote control, 27 ... Gas type setting lever.
Claims (2)
と、 上記ガス種設定手段により設定されたガス種に基づい
て、上記複数のガス通路から使用するガス通路を決定す
るガス通路決定手段とを備え、 上記各ガス通路に、それぞれ制御範囲の異なるガス比例
弁を設けたことを特徴とする燃焼制御装置。1. A burner for burning a fuel gas, a plurality of gas passages for supplying the fuel gas to the burner, a gas type setting unit for setting a gas type to be supplied to the burner, and a gas type setting unit for setting the gas type. A gas passage determining means for determining a gas passage to be used from the plurality of gas passages based on the selected gas species, and each of the gas passages is provided with a gas proportional valve having a different control range. Combustion control device.
ＰＧとＤＭＥとであることを特徴とする請求項１記載の
燃焼制御装置。2. The fuel gas supplied to the burner is L
The combustion control device according to claim 1, wherein the combustion control device is a PG and a DME.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001268210A JP2003074838A (en) | 2001-09-05 | 2001-09-05 | Combustion control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001268210A JP2003074838A (en) | 2001-09-05 | 2001-09-05 | Combustion control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003074838A true JP2003074838A (en) | 2003-03-12 |
Family
ID=19094231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001268210A Pending JP2003074838A (en) | 2001-09-05 | 2001-09-05 | Combustion control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003074838A (en) |
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