JP2611898B2 - Combined combustion device - Google Patents

Combined combustion device

Info

Publication number
JP2611898B2
JP2611898B2 JP4161447A JP16144792A JP2611898B2 JP 2611898 B2 JP2611898 B2 JP 2611898B2 JP 4161447 A JP4161447 A JP 4161447A JP 16144792 A JP16144792 A JP 16144792A JP 2611898 B2 JP2611898 B2 JP 2611898B2
Authority
JP
Japan
Prior art keywords
combustion
air supply
supply fan
rotation speed
amount
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 - Fee Related
Application number
JP4161447A
Other languages
Japanese (ja)
Other versions
JPH062836A (en
Inventor
弘逸 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rinnai Corp
Original Assignee
Rinnai Corp
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 by Rinnai Corp filed Critical Rinnai Corp
Priority to JP4161447A priority Critical patent/JP2611898B2/en
Priority to KR1019930009054A priority patent/KR970003160B1/en
Publication of JPH062836A publication Critical patent/JPH062836A/en
Application granted granted Critical
Publication of JP2611898B2 publication Critical patent/JP2611898B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/08—Regulating air supply or draught by power-assisted systems
    • F23N3/085—Regulating air supply or draught by power-assisted systems using electrical or electromechanical means

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  • 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】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、複合燃焼装置、とく
に、熱交換部と、バーナと、このバーナを収容した燃焼
室に燃焼空気を供給するファンとを有する二組の燃焼装
置の排気を排気集合筒を介して排出する形式の複合燃焼
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined combustion apparatus, and more particularly, to the exhaust of two sets of combustion apparatuses having a heat exchange section, a burner, and a fan for supplying combustion air to a combustion chamber containing the burner. The present invention relates to a combined combustion device of a type that discharges gas through an exhaust collecting cylinder.

【０００２】[0002]

【従来技術及び課題】上記形式の複合燃焼装置の場合、
各燃焼装置からの排気が排気集合筒から共に排出される
から、一方の燃焼排気の量が他方の燃焼のそれに影響を
与える。とくに、両方の最大燃焼量が相違する場合、こ
の影響も大きい。従って、一方の燃焼排気が他方の燃焼
室に逆流したりすることもある。2. Description of the Related Art In the case of a combined combustion apparatus of the above type,
Since the exhaust from each combustion device is exhausted together from the exhaust manifold, the amount of one combustion exhaust will affect that of the other combustion. In particular, when both the maximum combustion amounts are different, this effect is also large. Therefore, one combustion exhaust gas may flow back to the other combustion chamber.

【０００３】このような、問題を解消するものとして、
実開平2-7454号公報に開示されたものがあり、このもの
では、一方の燃焼装置の燃焼量を一定とすると共に、他
方の燃焼装置の燃焼量を可変とした条件のもとに、前者
の能力固定燃焼装置の給気ファンの回転数を後者の能力
可変燃焼装置の給気ファンの回転数の変化に応じて制御
するようにしている。つまり、能力固定燃焼装置の給気
ファンは、燃焼していると否とに関らず、能力可変燃焼
装置の給気ファンの回転数に応じて変化する構成となっ
ている。[0003] In order to solve such a problem,
Japanese Unexamined Utility Model Publication No. 2-7454 discloses an apparatus disclosed in Japanese Unexamined Utility Model Publication No. 2-7454, in which the combustion amount of one combustion device is kept constant and the combustion amount of the other combustion device is made variable. The rotation speed of the supply fan of the fixed capacity combustion device is controlled according to the change in the rotation speed of the supply fan of the latter variable capacity combustion device. In other words, the air supply fan of the fixed capacity combustion device is configured to change according to the rotation speed of the air supply fan of the variable capacity combustion device regardless of whether or not the combustion is performed.

【０００４】ところが、この従来のものでは、温水暖房
器と給湯器との組合せなどのように、二組の燃焼装置が
共に能力可変の場合には、そのまま適用できない。一方
の燃焼装置の給気ファンの回転数を他方の給気ファンの
回転数に応じて変化させるだけでは、燃焼量との間にア
ンバランスを生じ、当該一方の燃焼装置の燃焼が円滑な
ものとはならない。However, this conventional device cannot be applied as it is when both sets of combustion devices have variable capacities, such as a combination of a hot water heater and a water heater. Simply changing the rotation speed of the air supply fan of one combustion device in accordance with the rotation speed of the other air supply fan causes an imbalance between the amount of combustion and the combustion of the one combustion device. Does not.

【０００５】本発明は、かかる点に鑑みてなされたもの
であり、『熱交換部と、バーナと、このバーナを収容し
た燃焼室に燃焼空気を供給する給気ファンとを有する二
組の燃焼装置の排気を排気集合筒を介して排出する形式
の複合燃焼装置』において、両方の燃焼装置が共に能力
可変とした場合であっても、両者が常に円滑に燃焼する
ようにすることをその課題とする。The present invention has been made in view of the above points, and has been made in consideration of the above-mentioned problem. "Two sets of combustion units having a heat exchange unit, a burner, and an air supply fan for supplying combustion air to a combustion chamber containing the burner are provided. In the case of a combined combustion system in which the exhaust of the system is exhausted through an exhaust manifold, the problem is that even if both combustion systems have variable capacities, they can always burn smoothly. And

【０００６】［請求項１］[Claim 1]

【０００７】[0007]

【技術的手段】上記課題を解決するための本発明の技術
的手段は、『二組の燃焼装置は、燃焼能力が大きく且燃
焼量可変の第１燃焼装置(1) と、これよりも燃焼能力が
小さく且燃焼量可変の第２燃焼装置(2) とからなり、前
記第１燃焼装置(1) の給気ファン(11)の回転数は燃焼量
との関係で比例的に変化する構成とし、前記第２燃焼装
置(2) の給気ファン(21)の回転数は制御手段(3) によっ
て制御される構成とし、この制御手段(3) は、前記給気
ファン(11)の回転数及び第２燃焼装置(2) の燃焼量に応
じて比例的に適正回転数を設定する構成とした』ことで
ある。[Technical Means] The technical means of the present invention for solving the above-mentioned problem is as follows: "Two sets of combustion apparatuses have a first combustion apparatus (1) having a large combustion capacity and a variable combustion amount; A second combustion device (2) having a small capacity and a variable combustion amount, wherein the rotation speed of the air supply fan (11) of the first combustion device (1) varies proportionally with the combustion amount. The rotation speed of the air supply fan (21) of the second combustion device (2) is controlled by control means (3), and the control means (3) controls the rotation speed of the air supply fan (11). The appropriate number of revolutions is set proportionally according to the number and the amount of combustion of the second combustion device (2). "

【０００８】[0008]

【作用】上記技術的手段は次のように作用する。燃焼能
力の大きな第１燃焼装置(1) は、これ自体の燃焼条件の
みによって給気ファン(11)の回転数が優先的に制御され
る。一方、第２燃焼装置(2) の回転数は、前記給気ファ
ン(11)の回転数及び第２燃焼装置(2) の燃焼量に応じて
比例的に適正回転数を設定する制御手段(3) によって制
御され、この第２燃焼装置(2) の燃焼量と他方の給気フ
ァン(11)の回転数の両方の条件を加味した回転数に設定
されることとなる。The above technical means operates as follows. In the first combustion device (1) having a large combustion capacity, the rotation speed of the air supply fan (11) is preferentially controlled only by its own combustion conditions. On the other hand, the number of revolutions of the second combustion device (2) is proportionally set according to the number of revolutions of the air supply fan (11) and the amount of combustion of the second combustion device (2). The rotation speed is controlled in accordance with 3), and the rotation speed is set in consideration of both the conditions of the combustion amount of the second combustion device (2) and the rotation speed of the other air supply fan (11).

【０００９】つまり、給気ファン(11)の回転数が大きい
場合であっても、第２燃焼装置(2)の燃焼量が比較的少
い場合には、給気ファン(21)の回転数は、給気ファン(1
1)の回転数との関係で比例的に設定される回転数よりも
低い回転数に設定される。逆に、給気ファン(11)の回転
数が小さい場合であっても、第２燃焼装置(2) の燃焼量
が比較的多い場合には、給気ファン(21)の回転数は、給
気ファン(11)の回転数のみとの関係で比例的に設定され
る回転数よりも高い回転数に設定され十分な空気が供給
される。That is, even when the rotation speed of the air supply fan (11) is high, if the combustion amount of the second combustion device (2) is relatively small, the rotation speed of the air supply fan (21) is reduced. Is the air supply fan (1
The rotation speed is set lower than the rotation speed proportionally set in relation to the rotation speed in 1). Conversely, even when the rotation speed of the air supply fan (11) is small, if the combustion amount of the second combustion device (2) is relatively large, the rotation speed of the air supply fan (21) is reduced. The rotation speed is set to be higher than the rotation speed proportionally set in relation to only the rotation speed of the air fan (11), and sufficient air is supplied.

【００１０】このように、排気集合筒を介して排出する
形式の場合の給気への影響と燃焼量が変化する場合の必
要給気量との関係が常に適正なものとなる。As described above, the relationship between the influence on the air supply in the case of the type of discharging through the exhaust manifold and the required air supply in the case where the combustion amount changes always becomes appropriate.

【００１１】[0011]

【効果】二組の燃焼装置が共に燃焼量可変であっても、
これら燃焼装置には、常に適正な燃焼空気が供給され
る。また、燃焼排気に大きな影響を与える第１燃焼装置
(1) の給気ファン(11)の回転数に基いて給気ファン(21)
の回転数を制御することにより、この燃焼装置の給気を
調節するものであるから、給気ファンの回転数の制御に
よる給気バランスの安定性が良好なものとなる。[Effect] Even if both of the two combustion devices have variable combustion amounts,
These combustion devices are always supplied with appropriate combustion air. In addition, a first combustion device that has a large effect on combustion exhaust
The air supply fan (21) based on the rotation speed of the air supply fan (11) of (1)
By controlling the rotation speed of the combustion device, the air supply of the combustion device is adjusted, and the stability of the air supply balance by controlling the rotation speed of the air supply fan is improved.

【００１２】［請求項２の発明について］[About the invention of claim 2]

【００１３】[0013]

【技術的手段】この発明は、上記請求項１の発明におい
て、制御手段(3) の構成を限定したものであり、この限
定された手段は、『給気ファン(21)の回転数の燃焼量に
対する変化度合を、給気ファン(11)の回転数が大きくな
るに従って小さくなるようにした』ことである。In the present invention, the configuration of the control means (3) in the first aspect of the present invention is limited, and the limited means includes "combustion of the rotation speed of the air supply fan (21)". The degree of change with respect to the amount is reduced as the number of rotations of the air supply fan (11) is increased. "

【００１４】[0014]

【作用・効果】この技術的手段を採用するものでは、給
気ファン(11)の回転数の影響を受け易い第２燃焼装置
(2) の弱燃焼時は、給気ファン(21)の回転数を給気ファ
ン(11)の回転数に応じて大きく変化させ、逆に、給気フ
ァン(11)の回転数の影響を受けにくい第２燃焼装置(2)
の強燃焼時には給気ファン(11)の回転数が変化しても給
気ファン(21)の回転数をあまり変化させないようにして
いる。[Function / Effect] The second combustion device which adopts this technical means is easily affected by the rotation speed of the air supply fan (11).
At the time of (2) weak combustion, the rotation speed of the air supply fan (21) is greatly changed according to the rotation speed of the air supply fan (11), and conversely, the influence of the rotation speed of the air supply fan (11) is reduced. Second combustion device which is hard to receive (2)
During the strong combustion, the rotational speed of the air supply fan (21) is not changed much even if the rotational speed of the air supply fan (11) changes.

【００１５】従って、第２燃焼装置(2) の弱燃焼から強
燃焼までの全ての燃焼範囲において第２燃焼装置(2) の
給気ファン(21)の回転数を給気ファン(11)の回転数に応
じた最適な値とすることができ、給気ファンの回転数制
御による給気バランスの安定性が常に良好なものとな
る。Accordingly, in the entire combustion range from the weak combustion to the strong combustion of the second combustion device (2), the rotation speed of the air supply fan (21) of the second combustion device (2) is increased by the speed of the air supply fan (11). The optimum value can be set according to the rotation speed, and the stability of the air supply balance by controlling the rotation speed of the air supply fan is always good.

【００１６】[0016]

【実施例】次に、上記した本発明の実施例を図面に従っ
て詳述する。 ［実施例１］図１に示す実施例１は、第１燃焼装置(1)
を給湯器(1a)とし、他方の第２燃焼装置(2) を温水暖房
器(2a)としたものであり、前者の最大燃焼量は45000Kca
l/hとし、後者の最大燃焼量を15000Kcal/h としたもの
であり、給湯器(1a)の缶体(12)内上部に熱交換器(13)
が、その下方にガスバーナ(14)が、缶体底部に給気ファ
ン(11)が、それぞれ配設される。そして、前記ガスバー
ナ(14)へのガス回路にはガス比例弁(15)が挿入され、こ
のガス比例弁(15)の開度は制御回路(15a) からの燃焼量
制御信号によって制御されてガスバーナ(24)へのガス量
が増減される。尚、燃焼量は入水温、入水量、設定温度
によって設定される。Next, an embodiment of the present invention will be described in detail with reference to the drawings. [Embodiment 1] A first combustion apparatus (1) shown in FIG.
Is a water heater (1a) and the other second combustion device (2) is a hot water heater (2a). The maximum combustion amount of the former is 45000 Kca
l / h, and the maximum combustion amount of the latter is 15000 Kcal / h, and the heat exchanger (13) is located on the top inside the can (12) of the water heater (1a).
However, a gas burner (14) is provided below and a gas supply fan (11) is provided at the bottom of the can body. A gas proportional valve (15) is inserted into the gas circuit to the gas burner (14), and the degree of opening of the gas proportional valve (15) is controlled by a combustion amount control signal from the control circuit (15a). The amount of gas to (24) is increased or decreased. The combustion amount is set based on the incoming water temperature, the incoming water amount, and the set temperature.

【００１７】前記燃焼量制御信号はガス比例弁(15)に印
加される電流値又は電圧値としてあり、これらの信号値
と比例してガス比例弁(15)の開度が変化する。また、こ
の信号値は、給気ファン(11)のモータの制御回路(11a)
にも印加されており、給気ファン(11)の回転数と前記信
号値とが比例関係にあり、ガス比例弁(15)の開度が大き
くなるに伴って、つまり、燃焼量が増加するに伴って給
気ファン(11)の回転数が増加する。The combustion amount control signal is a current value or a voltage value applied to the gas proportional valve (15), and the opening of the gas proportional valve (15) changes in proportion to these signal values. Also, this signal value is supplied to the control circuit (11a) of the motor of the air supply fan (11).
The signal value is proportional to the rotation speed of the air supply fan (11), and as the opening of the gas proportional valve (15) increases, that is, the amount of combustion increases. As a result, the rotation speed of the air supply fan (11) increases.

【００１８】温水暖房器(2a)も給湯器(1a)と同様の構成
であり、缶体(22)内上部に熱交換器(23)が、その下方に
ガスバーナ(24)が、缶体底部に給気ファン(21)が、それ
ぞれ配設される。そして、前記ガスバーナ(24)へのガス
回路にはガス比例弁(25)が挿入され、このガス比例弁(2
5)の開度は制御回路(25a) からの燃焼量制御信号によっ
て制御されてガスバーナ(14)へのガス量が増減される。The hot water heater (2a) has the same structure as the water heater (1a). A heat exchanger (23) is provided in the upper part of the can body (22), a gas burner (24) is provided below the same, and a bottom part of the can body is provided. , An air supply fan (21) is provided. A gas proportional valve (25) is inserted into the gas circuit to the gas burner (24), and the gas proportional valve (2
The opening degree of 5) is controlled by the combustion amount control signal from the control circuit (25a), and the amount of gas to the gas burner (14) is increased or decreased.

【００１９】給気ファン(21)の回転数は、上記給気ファ
ン(11)の回転数との関係及び前記制御回路(25a) からの
制御信号量によって決定される構成であり、このため給
気ファン(21)の回転数を制御する制御手段(3) としての
制御回路(21a) が設けられている。上記したように、制
御回路(11a) では、制御回路(15a) からの制御信号量：
X1、給気ファン(11)の回転数：Y1とすると、Y1＝a1X1＋
ｂの関係となるように制御信号が出力される。ここで、
a1は給気ファン(11)の特性によって決定される数値であ
る。従って、例えば、この実施例のものでは、給湯器(1
a)の給気ファン(11)の回転数は、ガス比例弁(15)に印加
される電流値との関係では、図２のD1のグラフに示す変
化をするように設定されている。The rotation speed of the air supply fan (21) is determined by the relationship between the rotation speed of the air supply fan (11) and the control signal amount from the control circuit (25a). A control circuit (21a) is provided as control means (3) for controlling the rotation speed of the air fan (21). As described above, in the control circuit (11a), the control signal amount from the control circuit (15a):
Assuming that X 1 is the rotation speed of the air supply fan (11): Y 1 , Y 1 = a 1 X 1 +
The control signal is output so as to satisfy the relationship b. here,
a 1 is a numerical value determined by the characteristics of the air supply fan (11). Therefore, for example, in this embodiment, the water heater (1
rotational speed of the air supply fan (11) in a), in the relation between the current value applied to the gas proportional valve (15) is set to the change shown in the graph of D 1 of the FIG.

【００２０】これに対して制御回路(21a) では、制御回
路(25a) からの制御信号量：X2、給気ファン(21)の回転
数：Y2とすると、Y2＝a2X2＋Ｃとなるように制御信号が
出力される。ここで、a2は給気ファン(21)の特性によっ
て事前に決定される数値であり、Ｃは、給湯器(1a)が同
時使用されているときに前記Y1によって決定される変数
である。[0020] In the control circuit (21a) with respect to this, the control signal of the control circuit (25a): X 2, the rotation speed of the air supply fan (21): When Y 2, Y 2 = a 2 X 2 The control signal is output so as to be + C. Here, a 2 is a number which is predetermined by the characteristics of the air supply fan (21), C is a variable determined by the Y 1 when water heater (1a) are used simultaneously .

【００２１】従って、温水暖房器(2a)の給気ファン(21)
の回転数は、ガス比例弁(25)に印加される電流値との関
係では、例えば、同図のD2のグラフとD3のグラフとの間
で変化する。ここで、D2のグラフは給湯器(1a)側の燃焼
量が最大の場合の給気ファン(21)の回転数変化を示し、
Y2＝a2X2＋Ｃ1 で与えられる。D3のグラフは給湯器(1a)
側の燃焼量が最小の場合での給気ファン(21)の回転数変
化を示し、Y2＝a2X2＋Ｃ2 で与えられる。そして、この
Ｃ1 〜Ｃ2 の値は前記Y1によって決定されることとな
る。Therefore, the air supply fan (21) of the hot water heater (2a)
The rotation speed, the relation between the current value applied to the gas proportional valve (25), for example, varying between a graph of the graph and D 3 of D 2 in FIG. Here, the graph of D 2 represents the rotation speed variation of the air supply fan (21) when the combustion of the water heater (1a) side of the maximum,
It is given by Y 2 = a 2 X 2 + C 1 . The graph of D 3 is a water heater (1a)
The change in the number of revolutions of the air supply fan (21) when the combustion amount on the side is minimum is given by Y 2 = a 2 X 2 + C 2 . Then, the value of the C 1 -C 2 is will be determined by the Y 1.

【００２２】従って、この実施例では制御回路(21a) に
は、給気ファン(21)の特性によって上記a2を設定する第
１設定回路と、Y1によってＣを設定する第２設定回路と
から構成される。 ［実施例２］上記実施例のものでは、温水暖房器(2a)の
給気ファン(21)の回転数の燃焼量に対する変化度合を給
気ファン(11)の回転数にかかわらず一定にしているが、
この変化度合を図３に示すように給気ファン(11)の回転
数、つまり、制御回路(11a)からの制御信号量に応じて
変化させるようにしてもよい。[0022] Therefore, the control circuit in this embodiment (21a), a first setting circuit for setting the a 2 by the characteristics of the air supply fan (21), a second setting circuit for setting a C by Y 1 Consists of [Embodiment 2] In the above embodiment, the degree of change of the rotation speed of the air supply fan (21) of the hot water heater (2a) with respect to the combustion amount is made constant regardless of the rotation speed of the air supply fan (11). But
As shown in FIG. 3, the degree of this change may be changed according to the rotation speed of the air supply fan (11), that is, the control signal amount from the control circuit (11a).

【００２３】例えば、給気ファン(11)の回転数が最大の
条件下での給気ファン(21)の回転数は、同図においてD4
のグラフの変化を示し、給気ファン(11)の回転数が最低
の条件での給気ファン(21)の回転数は、同図のD5のグラ
フの変化を示すように制御する。前記D5のグラフの勾配
は、D4のグラフよりも大きく設定されており、この範囲
内において給気ファン(21)の回転数がガスバーナ(24)の
燃焼量に応じて変化することとなる。この場合、上記実
施例１と同様に給気ファン(21)の回転数は、Y2＝a2X2＋
Ｃで与えられるが、給気ファン(11)の回転数が大きくな
るに従って、上記変化度合が小さく設定されることとな
る。For example, the rotation speed of the air supply fan (21) under the condition that the rotation speed of the air supply fan (11) is the maximum is D 4 in FIG.
Shows the change in the graph, the rotational speed of the air supply fan at a rotational speed minimum condition of the air supply fan (11) (21) controls to indicate the change of the graph of D 5 in FIG. Gradient of the graph of the D 5 is, D is set larger than the graph 4, the rotational speed of the air supply fan (21) within this range is to be changed according to the combustion amount of the gas burner (24) . In this case, as in the first embodiment, the rotation speed of the air supply fan (21) is Y 2 = a 2 X 2 +
C, the degree of change is set smaller as the rotation speed of the air supply fan (11) increases.

【００２４】上記a2もＣと同様に変数となり、これを設
定する第１設定回路では、a2の値と給気ファン(11)の回
転数とを逆比例させて、給気ファン(11)の回転数が大き
くなるに従って、a2の値を小さくするようにしている。
例えば、このa2の値は上記Y1の一次次式で与えられ、a2
＝Ｑ−ＰY1（Ｐ，Ｑ：定数、Ｑ＞ＰY1）となる。換言す
れば、給気ファン(11)の回転数の影響を受け易い温水暖
房器(2a)の弱燃焼時は、給気ファン(21)の回転数を給気
ファン(11)の回転数に応じて大きく変化させ、逆に、給
気ファン(11)の回転数の影響を受けにくい温水暖房器(2
a)の強燃焼時には給気ファン(11)の回転数が変化しても
給気ファン(21)の回転数はあまり変化させないようして
いる。[0024] The a 2 similarly becomes variable and C, and in the first setting circuit for setting this, is reversely proportional to the rotational speed values of a 2 and the air supply fan (11), the air supply fan (11 as the rotational speed increases in), and so as to reduce the value of a 2.
For example, the value of a 2 is given by the linear expression of Y 1 above, and a 2
= Q-PY 1 (P, Q: constants, Q> PY 1 ). In other words, at the time of weak combustion of the hot water heater (2a), which is easily affected by the rotation speed of the air supply fan (11), the rotation speed of the air supply fan (21) is changed to the rotation speed of the air supply fan (11). The water heater (2) is less affected by the rotation speed of the air supply fan (11).
At the time of strong combustion in a), even if the rotation speed of the air supply fan (11) changes, the rotation speed of the air supply fan (21) is not changed much.

【００２５】従って、この実施例の場合には、温水暖房
器(2a)の燃焼量が最小から最大までの全ての範囲にわた
って温水暖房器(2a)の給気ファン(21)の回転数を給気フ
ァン(11)の回転数に応じた最適値とすることでき、給気
バランスの安定性が常に良好なものとなる。尚、以上
は、通常燃焼時における制御であるが、ガスバーナ(24)
への点火時においても、給気ファン(11)の回転数に応じ
て給気ファン(21)の回転数を制御するようにしてもよ
い。この場合にも、上記制御がそのまま採用できる。Therefore, in this embodiment, the rotation speed of the supply fan (21) of the hot water heater (2a) is supplied over the entire range from the minimum to the maximum combustion amount of the hot water heater (2a). The optimum value can be set according to the rotation speed of the air fan (11), and the stability of the air supply balance is always good. The above is the control during normal combustion, but the gas burner (24)
Also at the time of ignition, the rotation speed of the air supply fan (21) may be controlled in accordance with the rotation speed of the air supply fan (11). Also in this case, the above control can be adopted as it is.

【００２６】また、上記実施例の場合には、給気ファン
(21)の回転数の制御の仕方として、給気ファン(11)の回
転数に対して比例的に設定する方法を採用したが、他の
関数を用いた補正を行うようにしてもよい。給気ファン
(21)の回転数をガスバーナ(24)の燃焼量に対応する値の
一次関数として与える方式としたが、他の関数によって
与えることとしてもよい。また、上記何れの実施例にお
いても、給気ファン(21)の回転数をデータテーブルに記
憶しておき給気ファン(11)の回転数とガスバーナ(24)の
燃焼量に対応する値とに基いて特定の値を選択する構成
としてもよい。In the case of the above embodiment, the air supply fan
As a method of controlling the rotation speed of (21), a method of setting the rotation speed in proportion to the rotation speed of the air supply fan (11) is adopted, but correction using another function may be performed. Air supply fan
Although the rotation speed of (21) is given as a linear function of a value corresponding to the combustion amount of the gas burner (24), it may be given by another function. In each of the above embodiments, the rotation speed of the air supply fan (21) is stored in a data table, and the rotation speed of the air supply fan (11) and the value corresponding to the combustion amount of the gas burner (24) are stored. A configuration may be adopted in which a specific value is selected based on this.

【００２７】尚、上記実施例では、温水暖房器(2a)の給
気ファン(21)の回転数を制御回路(11a) から出力される
制御信号量に応じて変化させるものを示したが、制御回
路(15a) から出力されるガス比例弁(15)への燃焼量制御
信号と、前記制御回路(11a)からの制御信号量とが常に
比例しているため制御回路(15a) の燃焼量制御信号に応
じて給気ファン(21)の回転数を変化させるようにしても
よい。In the above-described embodiment, the rotation speed of the air supply fan (21) of the hot water heater (2a) is changed according to the control signal output from the control circuit (11a). Since the combustion amount control signal to the gas proportional valve (15) output from the control circuit (15a) is always proportional to the control signal amount from the control circuit (11a), the combustion amount of the control circuit (15a) The rotation speed of the air supply fan (21) may be changed according to the control signal.

【００２８】また、上記実施例では、給湯器(1a)はガス
比例弁(15)への通電電流に基いて給気ファン(11)の回転
数を設定するものを示したが、燃焼量に応じて給気ファ
ン(11)の回転数を決め、給気ファン(11)の回転数に基い
てガス比例弁(15)への通電電流を設定する所謂ファン先
行型のものであってもよい。また、同様に温水暖房器(2
a)においてもファン先行型であってもよく、この場合、
給気ファン(11)の回転数によって温水暖房側の燃焼量が
変化しないように給気ファン(21)の変化量に対応する府
の補正をガス比例弁(25)に加えればよい。尚、この場
合、給湯器(1a)の給気ファン(11)の回転数を検知する回
転数検出手段を設け、検出された回転数によって温水暖
房器(2a)側の給気ファン(21)の回転数を制御するように
すると、さらに安定性が良い。In the above embodiment, the water heater (1a) sets the rotation speed of the air supply fan (11) based on the current supplied to the gas proportional valve (15). A so-called fan-lead type in which the rotation speed of the air supply fan (11) is determined in accordance therewith and the current supplied to the gas proportional valve (15) is set based on the rotation speed of the air supply fan (11). . In addition, similarly, the hot water heater (2
In (a), a fan-first type may also be used, in which case,
A correction corresponding to the amount of change of the air supply fan (21) may be added to the gas proportional valve (25) so that the amount of combustion on the hot water heating side does not change according to the rotation speed of the air supply fan (11). In this case, a rotation speed detecting means for detecting the rotation speed of the air supply fan (11) of the water heater (1a) is provided, and the air supply fan (21) on the hot water heater (2a) side is detected according to the detected rotation speed. If the number of rotations is controlled, the stability is further improved.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明実施例の複合燃焼装置の説明図FIG. 1 is an explanatory view of a combined combustion apparatus according to an embodiment of the present invention.

【図２】本発明の実施例１における給気ファン(11)の回
転数と給気ファン(21)の回転数との関係、及び、変化を
示すグラフFIG. 2 is a graph showing a relationship between a rotation speed of an air supply fan (11) and a rotation speed of an air supply fan (21) and a change in the first embodiment of the present invention.

【図３】実施例２の場合の給気ファン(21)の回転数の変
化を示すグラフFIG. 3 is a graph showing a change in the rotation speed of an air supply fan (21) in the case of a second embodiment.

【符号の説明】[Explanation of symbols]

(1) ・・・第１燃焼装置 (2) ・・・第２燃焼装置 (11)・・・給気ファン (21)・・・給気ファン (3) ・・・制御手段 (1) ... first combustion device (2) ... second combustion device (11) ... air supply fan (21) ... air supply fan (3) ... control means

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 熱交換部と、バーナと、このバーナを収
容した燃焼室に燃焼空気を供給する給気ファンとを有す
る二組の燃焼装置の排気を排気集合筒を介して排出する
形式の複合燃焼装置において、二組の燃焼装置は、燃焼
能力が大きく且燃焼量可変の第１燃焼装置(1) と、これ
よりも燃焼能力が小さく且燃焼量可変の第２燃焼装置
(2) とからなり、前記第１燃焼装置(1) の給気ファン(1
1)の回転数は燃焼量との関係で比例的に変化する構成と
し、前記第２燃焼装置(2) の給気ファン(21)の回転数は
制御手段(3) によって制御される構成とし、この制御手
段(3) は、前記給気ファン(11)の回転数及び第２燃焼装
置(2) の燃焼量に応じて比例的に適正回転数を設定する
構成とした複合燃焼装置。1. An exhaust system comprising a heat exchanger, a burner, and an air supply fan for supplying combustion air to a combustion chamber containing the burner. In the combined combustion apparatus, two sets of combustion apparatuses are a first combustion apparatus (1) having a large combustion capacity and a variable combustion quantity, and a second combustion apparatus having a smaller combustion capacity and a variable combustion quantity.
(2) The air supply fan (1) of the first combustion device (1)
The number of revolutions of (1) varies proportionally with the amount of combustion, and the number of revolutions of the air supply fan (21) of the second combustion device (2) is controlled by control means (3). The control means (3) is a composite combustion apparatus configured to set an appropriate rotation number in proportion to the rotation speed of the air supply fan (11) and the combustion amount of the second combustion device (2). 【請求項２】 給気ファン(21)の回転数の燃焼量に対す
る変化度合が、給気ファン(11)の回転数が大きくなるに
従って小さくなるようにした請求項１に記載の複合燃焼
装置。2. The combined combustion apparatus according to claim 1, wherein the degree of change of the rotation speed of the air supply fan (21) with respect to the combustion amount decreases as the rotation speed of the air supply fan (11) increases.
JP4161447A 1992-06-19 1992-06-19 Combined combustion device Expired - Fee Related JP2611898B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4161447A JP2611898B2 (en) 1992-06-19 1992-06-19 Combined combustion device
KR1019930009054A KR970003160B1 (en) 1992-06-19 1993-05-25 Complex combustion system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4161447A JP2611898B2 (en) 1992-06-19 1992-06-19 Combined combustion device

Publications (2)

Publication Number Publication Date
JPH062836A JPH062836A (en) 1994-01-11
JP2611898B2 true JP2611898B2 (en) 1997-05-21

Family

ID=15735287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4161447A Expired - Fee Related JP2611898B2 (en) 1992-06-19 1992-06-19 Combined combustion device

Country Status (2)

Country Link
JP (1) JP2611898B2 (en)
KR (1) KR970003160B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448209B1 (en) * 2001-09-17 2004-09-16 주식회사 리젠 바이오텍 Automatic coating machine
EP2538479B1 (en) * 2010-12-13 2015-09-02 Panasonic Corporation Power generation system and operating method therefor

Also Published As

Publication number Publication date
JPH062836A (en) 1994-01-11
KR940000795A (en) 1994-01-10
KR970003160B1 (en) 1997-03-14

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