JPH05346228A - Controller for combustion equipment - Google Patents

Controller for combustion equipment

Info

Publication number
JPH05346228A
JPH05346228A JP4153917A JP15391792A JPH05346228A JP H05346228 A JPH05346228 A JP H05346228A JP 4153917 A JP4153917 A JP 4153917A JP 15391792 A JP15391792 A JP 15391792A JP H05346228 A JPH05346228 A JP H05346228A
Authority
JP
Japan
Prior art keywords
combustion
control
blower
revolution
value
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.)
Granted
Application number
JP4153917A
Other languages
Japanese (ja)
Other versions
JP2664007B2 (en
Inventor
Hidehiko Takagi
秀彦 高木
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 JP4153917A priority Critical patent/JP2664007B2/en
Priority to KR1019930009051A priority patent/KR960004216B1/en
Publication of JPH05346228A publication Critical patent/JPH05346228A/en
Application granted granted Critical
Publication of JP2664007B2 publication Critical patent/JP2664007B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/02Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/14Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE:To provide a controller, by which data are simplified and the simplification is confirmed easily while a combustion test, etc., are facilitated and development of which is hardly borne, for a combustion equipment. CONSTITUTION:An air-blower control formula computing section 42a computing air-blower control operation formula from the minimum quantity of combustion and the maximum quantity of combustion and the minimum number of revolution and maximum number of revolution of an air blower II corresponding to these quantities of combustion respectively and a proportional-valve control formula computing section 43a computing proportional-valve control operation formula from the minimum number of revolution and the maximum number of revolution and the minimum current value and maximum current value of a proportional valve 12 corresponding to these number of revolution respectively are installed to a microcomputer 40. The control value (the number of revolution) of the air blower 11 is computed in response to the target quantity of combustion, the current value of the proportional valve 12 is calculated in response to the number of revolution of the air blower 11 detected, and the air blower 11 and the proportional valve 12 are controlled respectively.

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、燃焼機器を制御するた
めの制御値を制御演算式によって演算する燃焼機器の制
御装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a combustion device, which calculates a control value for controlling the combustion device by a control calculation formula.

【0002】[0002]

【従来の技術】給湯器や暖房機等の燃焼機器では、燃焼
機器の燃焼状態を制御するためにマイクロコンピュータ
(マイコン)が用いられ、マイコン内のプログラムによ
って構成された所定の演算式によって、設定温度等に基
づいてバーナの燃焼量が決定され、さらに、その決定さ
れた燃焼量に対応して送風機や比例弁の制御値が演算さ
れ、各制御値に基づいて送風機や比例弁が制御される。
従来、各制御値を演算するための演算式は、バーナの能
力その他に基づいて給湯器や暖房機の機種毎に設定され
ており、そのために、各演算式を特定するためにメモリ
には、演算式およびその演算範囲を指定するための複数
のデータが記憶されており、これらのデータは、類似し
た機種であっても、それぞれの機種に対応した固有のデ
ータとして記憶されている。
2. Description of the Related Art In combustion equipment such as water heaters and heaters, a microcomputer is used to control the combustion state of the combustion equipment, and it is set by a predetermined arithmetic expression constructed by a program in the microcomputer. The burner combustion amount is determined based on the temperature, etc., and the control values of the blower and proportional valve are calculated corresponding to the determined combustion amount, and the blower and proportional valve are controlled based on each control value. ..
Conventionally, an arithmetic expression for calculating each control value is set for each model of the water heater and the heater based on the capacity of the burner and the like, and therefore, in order to specify each arithmetic expression, the memory is A plurality of data for designating an arithmetic expression and its arithmetic range are stored, and these data are stored as unique data corresponding to each model even if the models are similar.

【0003】[0003]

【発明が解決しようとする課題】上記に示したように、
燃焼機器の制御に用いられる演算式は、バーナ単体、燃
料供給系、送風系その他が燃焼機器として組み合わせら
れた後に行われる燃焼試験等に基づいて適切に決められ
る制御値が得られるように設定されるものである。従っ
て、燃焼試験が必要な開発段階では、マイコンのメモリ
には、例えば、燃焼シーケンス、燃焼量の決定等のみの
プログラムは含まれるが、燃焼状態に影響を与えるよう
な送風機の制御値や比例弁の制御値を決定する演算式に
ついては、適切な燃焼特性を決定した後に初めて演算式
のデータとして含む方が好ましいものであるため、プロ
グラムに含まれていない。このため、燃焼試験では、例
えば、一次式で表されるような演算式を与える場合に
は、燃焼機器に設定された最小燃焼量および最大燃焼量
に対応して想定した最小制御値および最大制御値とか
ら、一次式の係数および定数を算出して試験を行う必要
があった。また、これらの係数および定数を決定した後
に、決定された演算式をプログラムのデータとしてメモ
リに記憶させた場合に、演算式を特定するためのデータ
は、燃焼量およびそれに対応する制御値の各最大値、各
最小値と、一次式における係数および定数となり、その
データ数は、1つの一次式について6個必要であり、こ
れらのデータをメモリに記憶させた後の確認に当たって
も、一次式による算出が必要である。
DISCLOSURE OF THE INVENTION As described above,
The arithmetic expression used to control the combustion equipment is set so that a control value that is appropriately determined based on a combustion test performed after the burner unit, the fuel supply system, the blast system, etc. are combined as the combustion equipment can be obtained. It is something. Therefore, at the development stage where a combustion test is required, the memory of the microcomputer contains, for example, a program only for determining the combustion sequence and the combustion amount, but the control value of the blower and the proportional valve that affect the combustion state are included. The arithmetic expression for determining the control value is not included in the program because it is preferable to include it as the data of the arithmetic expression only after determining the appropriate combustion characteristics. Therefore, in the combustion test, for example, when an arithmetic expression represented by a linear expression is given, the minimum control value and the maximum control value assumed corresponding to the minimum combustion amount and the maximum combustion amount set in the combustion equipment are set. It was necessary to calculate the coefficient and constant of the linear equation from the value and test. Further, when the determined arithmetic expression is stored in the memory as program data after determining these coefficients and constants, the data for specifying the arithmetic expression includes the combustion amount and the control value corresponding thereto. It becomes the maximum value, each minimum value, and the coefficient and constant in the linear expression, and the number of data is 6 for each linear expression. Even when confirming after storing these data in the memory, the linear expression is used. Calculation is required.

【0004】本発明は、データの単純化を図りその確認
を容易にするとともに、燃焼試験等が容易で開発の負担
が少ない燃焼機器の制御装置を提供することを目的とす
る。
An object of the present invention is to provide a control device for a combustion device, which simplifies data and facilitates its confirmation, and facilitates a combustion test or the like and reduces the burden of development.

【0005】[0005]

【課題を解決するための手段】本発明は、設定温度、サ
ーミスタの検知温度その他に基づいて決定される目標燃
焼量に対応した燃焼機器の制御値を算出するための制御
演算式を有する制御値演算手段を備え、前記制御演算式
によって演算される制御値に基づいて燃焼機器を制御す
る制御装置において、複数の燃焼量情報と該複数の燃焼
量情報にそれぞれ対応する複数の制御値情報とから前記
制御値演算手段における前記制御演算式を算出する演算
式算出手段とを備えたことを技術的手段とする。
SUMMARY OF THE INVENTION The present invention provides a control value having a control arithmetic expression for calculating a control value of a combustion device corresponding to a target combustion amount determined based on a set temperature, a detected temperature of a thermistor and the like. In a control device comprising a calculation means and controlling a combustion device based on a control value calculated by the control calculation formula, in a plurality of combustion amount information and a plurality of control value information respectively corresponding to the plurality of combustion amount information, The technical means includes an arithmetic expression calculating means for calculating the control arithmetic expression in the control value calculating means.

【0006】[0006]

【作用】本発明の燃焼機器の制御装置では、演算式算出
手段に対して、複数の燃焼量情報と各燃焼量情報に対応
した制御値情報とを与えることによって、制御演算式が
算出され、目標燃焼量が決定されると、算出された制御
演算式によって制御値が演算される。燃焼機器は、制御
演算式の演算結果によって制御される。従って、制御装
置の開発の段階では、複数の燃焼量情報に対応した任意
の制御値を、演算式算出手段に与えて燃焼機器の燃焼試
験を行うことにより、最も適切な制御値を見つけること
が容易である。その際、例えば、制御演算式が一次式で
与えられるものであれば、最大燃焼量と最小燃焼量とこ
れらに対応する2つの制御値を与えることによって一次
式を特定することができるため、一次式の係数や定数な
どの情報が不要になり、燃焼特性を特定するために必要
な情報の数を少なくすることができる。燃焼試験等を行
った後に、燃焼特性が決定された場合には、制御演算式
を特定するための複数の燃焼量情報とそれに対応する制
御値情報を、記憶手段に記憶させれば、最適な燃焼特性
を有する制御装置とすることができる。
In the control apparatus for the combustion equipment of the present invention, the control calculation formula is calculated by giving a plurality of combustion amount information and control value information corresponding to each combustion amount information to the calculation formula calculation means. When the target combustion amount is determined, the control value is calculated by the calculated control calculation formula. The combustion device is controlled by the calculation result of the control calculation formula. Therefore, at the stage of developing the control device, the most appropriate control value can be found by giving an arbitrary control value corresponding to a plurality of pieces of combustion amount information to the arithmetic expression calculation means to conduct a combustion test of the combustion equipment. It's easy. At that time, for example, if the control arithmetic expression is given by a linear expression, the linear expression can be specified by giving a maximum combustion amount, a minimum combustion amount, and two control values corresponding to them, The information such as the coefficient and the constant of the equation becomes unnecessary, and the number of information necessary for specifying the combustion characteristics can be reduced. When the combustion characteristics are determined after performing a combustion test or the like, it is possible to store a plurality of combustion amount information for specifying the control calculation expression and the corresponding control value information in the storage means. The control device can have combustion characteristics.

【0007】[0007]

【発明の効果】本発明では、燃焼特性を決定するための
制御演算式は、複数の燃焼量情報とそれに対応する複数
の制御値情報とを与えることによって算出されるため、
制御演算式を特定するために必要な情報(データ)数を
少なくすることができる。従って、開発における燃焼試
験等が容易になり、また、制御特性の決定後の情報(デ
ータ)の確認が容易にできる。
According to the present invention, the control arithmetic expression for determining the combustion characteristic is calculated by giving a plurality of pieces of combustion amount information and a plurality of pieces of control value information corresponding thereto.
It is possible to reduce the number of information (data) required to specify the control arithmetic expression. Therefore, a combustion test or the like in development is facilitated, and information (data) after the control characteristics are determined can be easily confirmed.

【0008】[0008]

【実施例】次に本発明を図に示す実施例に基づいて説明
する。図1に概略を示すガス給湯器1において、10は
バーナ、11はバーナ10へ燃焼用空気を供給する送風
機であり、バーナ10の燃焼量は、ガス供給管11に設
けられた比例弁12によって調節される。なお、ガス供
給管11において、13、14はガス電磁弁であり、バ
ーナ10にそれぞれ近接して、点火電極15、フレーム
ロッド16、サーモカップル17が備えられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on the embodiments shown in the drawings. In the gas water heater 1 schematically shown in FIG. 1, 10 is a burner, 11 is a blower for supplying combustion air to the burner 10, and the combustion amount of the burner 10 is controlled by a proportional valve 12 provided in a gas supply pipe 11. Adjusted. In addition, in the gas supply pipe 11, 13 and 14 are gas solenoid valves, which are provided with an ignition electrode 15, a frame rod 16, and a thermocouple 17 in proximity to the burner 10, respectively.

【0009】一方、20はバーナ10の燃焼熱で加熱さ
れる熱交換器、21は熱交換器20へ水を供給する給水
管、22は熱交換器20で加熱された湯水が流出する出
湯管、23は熱交換器20で加熱されない水を出湯管2
2へ直接導くバイパス管、24は必要に応じて開度を変
更してバイパス管23を通過する水量を調節するバイパ
ス混合弁である。給水管21において25は水量制御
弁、26は流量を検出する水量センサ、27は給水温を
検知する給水温サーミスタ、出湯管22において28は
出湯温サーミスタ、熱交換器20の下流側の29は加熱
温サーミスタである。以上の構成からなるガス給湯器1
において、バーナ10の燃焼制御、給水管21の流量を
調節する流量制御、バイパス管23の通過水量を調節す
るバイパス水量制御は、制御装置30によって行われ
る。
On the other hand, 20 is a heat exchanger heated by the combustion heat of the burner 10, 21 is a water supply pipe for supplying water to the heat exchanger 20, and 22 is a hot water outlet pipe through which hot water heated by the heat exchanger 20 flows out. , 23 are tap water pipes 2 for water that is not heated by the heat exchanger 20.
A bypass pipe 24 directly leading to 2 is a bypass mixing valve for adjusting the amount of water passing through the bypass pipe 23 by changing the opening degree as necessary. In the water supply pipe 21, 25 is a water amount control valve, 26 is a water amount sensor for detecting the flow rate, 27 is a water supply temperature thermistor for detecting the water supply temperature, 28 is a hot water outlet pipe thermistor 28, and 29 on the downstream side of the heat exchanger 20 is It is a heating temperature thermistor. Gas water heater 1 having the above configuration
In the above, the control device 30 performs the combustion control of the burner 10, the flow rate control for adjusting the flow rate of the water supply pipe 21, and the bypass water amount control for adjusting the passing water amount of the bypass pipe 23.

【0010】制御装置30は、マイクロコンピュータ
(以下マイコンという)40、入力回路31、駆動回路
32を中心として構成され、ガス給湯器1の運転状態を
設定するメーンリモコン33、風呂リモコン34を備え
ている。マイコン40は、入出力インターフェース回路
や記憶装置としてのメモリ50が同一のチップ内に収め
られた集積回路素子によるもので、メモリ50内には、
各制御のためのプログラムおよび機種に応じて設定され
た各種のデータが記憶されている。制御装置30による
制御では、出湯管22の下流端に設けられる図示しない
水栓の開栓操作に応じて通水が始まり、水量センサ26
の流量信号に基づいて通水が検知されると、所定のシー
ケンスでバーナ10の燃焼を開始して、各リモコン、各
サーミスタ等の信号に基づいてバーナ10の燃焼量を制
御するとともに、給水管21を通過する水量、バイパス
管23を通過する水量をそれぞれ制御し、通水停止を検
知すると、バーナ10の燃焼を停止する。
The control device 30 is mainly composed of a microcomputer (hereinafter referred to as a microcomputer) 40, an input circuit 31, and a drive circuit 32, and is provided with a main remote controller 33 and a bath remote controller 34 for setting the operating state of the gas water heater 1. There is. The microcomputer 40 is an integrated circuit element in which a memory 50 as an input / output interface circuit and a storage device is housed in the same chip.
Programs for each control and various data set according to the model are stored. In the control by the control device 30, water flow starts according to the opening operation of a water tap (not shown) provided at the downstream end of the hot water outlet pipe 22, and the water amount sensor 26
When water flow is detected based on the flow rate signal of the burner 10, combustion of the burner 10 is started in a predetermined sequence, the combustion amount of the burner 10 is controlled based on signals of each remote controller, each thermistor, etc. When the water flow stop is detected, the combustion of the burner 10 is stopped by controlling the amount of water passing through the bypass pipe 21 and the amount of water passing through the bypass pipe 23, respectively.

【0011】以下、マイコン40におけるバーナ10の
燃焼制御について説明する。燃焼制御を行うために、マ
イコン40では、図3に示すとおり、燃焼量決定部4
1、送風機制御部42、比例弁制御部43の各機能部が
設けられている。燃焼量決定部41では、バーナ10の
燃焼量Qを、始め、フィードフォワード制御によって給
水温サーミスタ27、水量センサ26の各検知信号およ
びいずれかのリモコンによる設定温度に基づいて決定
し、その後、出湯温サーミスタ28の検知信号が所定の
条件を満たすと、フィードバック制御によって加熱温サ
ーミスタ29、出湯温サーミスタ28の検知信号を加え
た各信号に基づいて燃焼量Qを決定して、設定温度に応
じた出湯温度が得られるように補正を行う。
The combustion control of the burner 10 in the microcomputer 40 will be described below. In order to perform combustion control, the microcomputer 40, as shown in FIG.
1, functional units of a blower control unit 42 and a proportional valve control unit 43 are provided. The combustion amount determination unit 41 first determines the combustion amount Q of the burner 10 based on the detection signals of the feed water temperature thermistor 27 and the water amount sensor 26 and the temperature set by one of the remote controls by feedforward control, and then the hot water discharge. When the detection signal of the temperature thermistor 28 satisfies a predetermined condition, the combustion amount Q is determined by feedback control based on each signal including the detection signals of the heating temperature thermistor 29 and the hot water temperature thermistor 28, and the combustion temperature Q is determined according to the set temperature. Correction is performed so that the tap water temperature can be obtained.

【0012】ここで、決定される燃焼量Qの範囲は、機
種毎にバーナ10の能力範囲その他に対応して、最小燃
焼量Qminと最大燃焼量Qmaxとが、メモリ50に
おいて燃焼量範囲データとして与えられている。燃焼制
御では、上記のように決まる燃焼量Qに応じて、送風機
11および比例弁12が制御されるが、バーナ10へ供
給される燃焼用空気量と燃料ガス量との割合が適切にな
るようにするために、本実施例では、決定された燃焼量
Qに応じて送風機制御部42によって送風機11を駆動
制御し、その回転数を検出して比例弁制御部43によっ
て比例弁12の通電電流値を制御している。
The range of the determined combustion amount Q corresponds to the capacity range of the burner 10 and the like for each model, and the minimum combustion amount Qmin and the maximum combustion amount Qmax are stored in the memory 50 as combustion amount range data. Has been given. In the combustion control, the blower 11 and the proportional valve 12 are controlled according to the combustion amount Q determined as described above, but the ratio between the combustion air amount and the fuel gas amount supplied to the burner 10 becomes appropriate. In order to achieve this, in the present embodiment, the blower controller 42 drives and controls the blower 11 in accordance with the determined combustion amount Q, the rotational speed of the blower 11 is detected, and the proportional valve controller 43 supplies the energizing current of the proportional valve 12. It controls the value.

【0013】送風機制御部42では、燃焼量決定部41
において決定される最小燃焼量Qminから最大燃焼量
Qmaxまでの各燃焼量Qに対応して送風機11の回転
数Nを決定するための送風機制御演算式が設けられてお
り、燃焼量Qが与えられると、それに対応した回転数N
が算出されて、その回転数Nが得られるように、送風機
11の電流値が制御される。ここで、送風機制御演算式
は、あらかじめプログラムによって機種に応じて直接与
えられているものではなく、機種毎に設定される送風機
11の最高回転数Nmaxおよび最低回転数Nminと
してメモリ50に与えられている回転数範囲データと、
前述の燃焼量範囲データとから機種に応じてマイコン4
0内で算出されて機能するもので、送風機制御部42に
は、送風機制御演算式を算出するための送風機制御式算
出部42aがプログラムにより設けられている。
In the blower control unit 42, the combustion amount determining unit 41
The blower control arithmetic expression for determining the rotation speed N of the blower 11 corresponding to each combustion amount Q from the minimum combustion amount Qmin to the maximum combustion amount Qmax determined in And the corresponding rotation speed N
Is calculated and the current value of the blower 11 is controlled so that the rotation speed N is obtained. Here, the blower control arithmetic expression is not directly given in advance by the program according to the model, but is given to the memory 50 as the maximum rotation speed Nmax and the minimum rotation speed Nmin of the blower 11 set for each model. Rotating speed range data,
Based on the above combustion amount range data, the microcomputer 4 depending on the model
It is calculated and functions within 0, and the blower control unit 42 is provided with a blower control formula calculation unit 42a for calculating a blower control calculation formula by a program.

【0014】同様に、比例弁制御部43においては、上
記のとおり制御された送風機11の作動に応じて検出さ
れる最低回転数Nminから最高回転数Nmaxまでの
各回転数Nに対応して比例弁12の電流値Iを決定する
ための比例弁制御演算式が設けられていて、回転数検出
回路によって送風機11の回転数Nが検出されると、そ
れに対応した電流値Iが算出されて、その電流値Iが得
られるように、比例弁12の電流値が制御される。ここ
で、比例弁制御演算式は、上記の送風機制御演算式と同
様に、メモリ50内のプログラムによって直接与えられ
ているものではなく、上記の回転数範囲データと、機種
毎に設定される比例弁12の最大電流値Imaxおよび
最小電流値Iminとしてメモリ50に与えられている
電流値範囲データとから機種に応じてマイコン40内で
算出されて機能するもので、比例弁制御部43には、比
例弁制御演算式を算出するための比例弁制御式算出部4
3aが設けられている。
Similarly, in the proportional valve control unit 43, the proportional valve controller 43 is proportional to each rotation speed N from the minimum rotation speed Nmin to the maximum rotation speed Nmax detected according to the operation of the blower 11 controlled as described above. A proportional valve control arithmetic expression for determining the current value I of the valve 12 is provided, and when the rotation speed N of the blower 11 is detected by the rotation speed detection circuit, the current value I corresponding thereto is calculated, The current value of the proportional valve 12 is controlled so that the current value I is obtained. Here, the proportional valve control arithmetic expression is not directly given by the program in the memory 50 like the above blower control arithmetic expression, but is proportional to the rotational speed range data set for each model. It is calculated in the microcomputer 40 according to the model from the current value range data given to the memory 50 as the maximum current value Imax and the minimum current value Imin of the valve 12 and functions. Proportional valve control formula calculation unit 4 for calculating a proportional valve control calculation formula
3a is provided.

【0015】以上を整理すると、本実施例においては、
燃焼量Qと送風機11の回転数Nが、例えば、図4の直
線Aに示すように、最大値と最小値との間で一次式でそ
れぞれ対応する関係を有しており、送風機11の回転数
Nと比例弁12の電流値Iが、例えば、図5の直線Bに
示すように、最大値と最小値との間で一次式でそれぞれ
対応する関係を有している。従って、これら上記の各制
御演算式は、それぞれ一次関数の一部として表現できる
ものであって、送風機制御式算出部42aでは、直線A
を示す送風機制御演算式を燃焼量Qと回転数Nの最大値
および最小値によって決まる2点の座標a(Qmax、
Nmax)、b(Qmin、Nmin)から算出し、比
例弁制御式演算部43aでは、直線Bを示す比例弁制御
演算式を回転数Nと電流値Iの最大値および最小値によ
って決まる2点の座標c(Nmax、Imax)、d
(Nmin、Imin)から算出する。
Summarizing the above, in the present embodiment,
The combustion amount Q and the rotation speed N of the blower 11 have a linear relationship between the maximum value and the minimum value, as shown by a straight line A in FIG. The number N and the current value I of the proportional valve 12 have a linear relationship between the maximum value and the minimum value, for example, as shown by a straight line B in FIG. Therefore, each of the above control arithmetic expressions can be expressed as a part of a linear function, and the blower control expression calculating unit 42a uses the straight line A
The blower control arithmetic expression showing the above is expressed by the coordinates a (Qmax,
Nmax), b (Qmin, Nmin), and in the proportional valve control equation calculation unit 43a, a proportional valve control equation showing a straight line B is determined by two points determined by the rotation speed N and the maximum and minimum values of the current value I. Coordinates c (Nmax, Imax), d
It is calculated from (Nmin, Imin).

【0016】ここで明らかなとおり、各制御演算式を特
定するための情報としては、燃焼量Q、回転数N、電流
値Iについて、それぞれ最大値と最小値とを示す6つの
データのみであり、従来において、直線を示すために必
要であった係数や定数は含まれていない。従って、基本
設計が同じように設計された複数種の給湯器に設けられ
る制御装置30において、マイコン40に備えられたメ
モリ50に与えられるデータのうち、機種毎に異なるデ
ータは、上記の燃焼量Q、回転数N、電流値Iの各最大
値と最小値とを示す6つのデータのみであることになる
ため、機種毎に、そのデータを確認する場合に、確認す
る必要のあるデータ数が従来に比べて少なくなる。
As is clear here, as the information for specifying each control arithmetic expression, there are only six data indicating the maximum value and the minimum value for the combustion amount Q, the rotation speed N, and the current value I, respectively. In the past, the coefficients and constants required to show a straight line are not included. Therefore, in the control device 30 provided in a plurality of types of water heaters having the same basic design, among the data provided to the memory 50 provided in the microcomputer 40, the data different for each model is the above combustion amount. Since there are only six pieces of data indicating the maximum and minimum values of Q, rotation speed N, and current value I, the number of data that needs to be confirmed when checking the data for each model It will be less than before.

【0017】また、各データが決定される前の燃焼試験
等においては、2つの燃焼量Qに対応した任意の回転数
N、またこれら2つの回転数Nに対応した任意の電流値
Iをそれぞれ制御値情報として与えるだけで、任意の制
御特性に関する試験を容易に行うことができるため、試
験のためのデータを与える際の負担が軽減できる。この
結果、機器の開発段階で燃焼試験等が容易になり、ま
た、燃焼特性を決定した後に、メモリ50のデータを確
認する場合にも、確認の負担が少なく、データ確認が簡
単にできる。
In a combustion test before each data is determined, an arbitrary rotation speed N corresponding to two combustion amounts Q and an arbitrary current value I corresponding to these two rotation speeds N are respectively set. Since it is possible to easily carry out a test relating to an arbitrary control characteristic only by giving it as control value information, it is possible to reduce the load when giving data for the test. As a result, a combustion test or the like is facilitated at the development stage of the device, and also when confirming the data in the memory 50 after determining the combustion characteristics, the burden of confirmation is small and the data can be confirmed easily.

【0018】以上の構成からなる本実施例のガス給湯器
1においては、メモリ50に燃焼量Q、回転数N、電流
値Iの各最大値と最小値とを示す6つのデータを記憶さ
せない状態で、燃焼試験等を容易に行うことができ、適
切なデータを容易に決定できる。また、各データがメモ
リ50に記憶された後に、そのデータを確認する場合に
も、確認するデータ数が少ないため、容易に確認するこ
とができる。上記実施例では、決定された燃焼量Qに対
応して送風機11を制御し、さらに、送風機11の回転
数Nに対応して比例弁12を制御したが、送風機11と
比例弁12をともに燃焼量Qに直接対応して制御しても
よい。上記実施例では、ガス給湯器1を示したが、温風
暖房機や床暖房機等でもよい。
In the gas water heater 1 of the present embodiment having the above-described structure, the memory 50 does not store six data indicating the maximum value and the minimum value of the combustion amount Q, the rotation speed N, and the current value I. Thus, a combustion test or the like can be easily performed, and appropriate data can be easily determined. Further, even when the data is confirmed after being stored in the memory 50, since the number of data to be confirmed is small, it can be easily confirmed. In the above embodiment, the blower 11 was controlled according to the determined combustion amount Q, and the proportional valve 12 was controlled according to the rotational speed N of the blower 11, but both the blower 11 and the proportional valve 12 burned. The quantity Q may be directly controlled. Although the gas water heater 1 is shown in the above embodiment, a hot air heater, a floor heater or the like may be used.

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

【図1】本発明の実施例を示すガス給湯器の概略構成図
である。
FIG. 1 is a schematic configuration diagram of a gas water heater showing an embodiment of the present invention.

【図2】本発明の実施例を示すガス給湯器の制御装置を
示すブロック図である。
FIG. 2 is a block diagram showing a control device of a gas water heater showing an embodiment of the present invention.

【図3】本発明の実施例の制御装置におけるマイクロコ
ンピュータの機能構成を示す機能ブロック図である。
FIG. 3 is a functional block diagram showing a functional configuration of a microcomputer in the control device according to the embodiment of the present invention.

【図4】本発明の実施例におけるマイクロコンピュータ
による燃焼量に対する送風機の回転数を示す制御特性図
である。
FIG. 4 is a control characteristic diagram showing the rotation speed of the blower with respect to the combustion amount by the microcomputer in the embodiment of the present invention.

【図5】本発明の実施例におけるマイクロコンピュータ
による送風機の回転数に対する比例弁の電流値を示す制
御特性図である。
FIG. 5 is a control characteristic diagram showing the current value of the proportional valve with respect to the rotation speed of the blower by the microcomputer in the embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 ガス給湯器(燃焼機器) 30 制御装置(燃焼機器の制御装置) 42 送風機制御部(制御値演算手段) 42a 送風機制御式算出部(演算式算出手段) 43 比例弁制御部(制御値演算手段) 43a 比例弁制御式算出部(演算式算出手段) DESCRIPTION OF SYMBOLS 1 gas water heater (combustion equipment) 30 control device (combustion equipment control device) 42 blower control unit (control value calculation means) 42a blower control formula calculation portion (calculation formula calculation means) 43 proportional valve control portion (control value calculation means) ) 43a Proportional valve control formula calculation unit (calculation formula calculation means)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 設定温度、サーミスタの検知温度その他
に基づいて決定される目標燃焼量に対応した燃焼機器の
制御値を算出するための制御演算式を有する制御値演算
手段を備え、前記制御演算式によって演算される制御値
に基づいて燃焼機器を制御する制御装置において、 複数の燃焼量情報と該複数の燃焼量情報にそれぞれ対応
する複数の制御値情報とから前記制御値演算手段におけ
る前記制御演算式を算出する演算式算出手段を備えたこ
とを特徴とする燃焼機器の制御装置。
1. A control value calculating means having a control calculation formula for calculating a control value of a combustion device corresponding to a target combustion amount determined based on a set temperature, a detection temperature of a thermistor, etc. In a control device for controlling a combustion device based on a control value calculated by a formula, the control in the control value calculation means from a plurality of combustion amount information and a plurality of control value information respectively corresponding to the plurality of combustion amount information. A control device for a combustion device, comprising an arithmetic expression calculating means for calculating an arithmetic expression.
JP4153917A 1992-06-12 1992-06-12 Control device for combustion equipment Expired - Lifetime JP2664007B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4153917A JP2664007B2 (en) 1992-06-12 1992-06-12 Control device for combustion equipment
KR1019930009051A KR960004216B1 (en) 1992-06-12 1993-05-25 Control unit for combustor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4153917A JP2664007B2 (en) 1992-06-12 1992-06-12 Control device for combustion equipment

Publications (2)

Publication Number Publication Date
JPH05346228A true JPH05346228A (en) 1993-12-27
JP2664007B2 JP2664007B2 (en) 1997-10-15

Family

ID=15572926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4153917A Expired - Lifetime JP2664007B2 (en) 1992-06-12 1992-06-12 Control device for combustion equipment

Country Status (2)

Country Link
JP (1) JP2664007B2 (en)
KR (1) KR960004216B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030041361A (en) * 2001-11-19 2003-05-27 주식회사 경동보일러 Air proportionality type boiler
CN109869893A (en) * 2019-01-29 2019-06-11 广东万和热能科技有限公司 A kind of blower control method and system of gas heater
CN113062879A (en) * 2021-03-24 2021-07-02 中山华帝电子科技有限公司 Wind pressure resistance control method for hot water supply equipment
JP2022065370A (en) * 2020-10-15 2022-04-27 大阪瓦斯株式会社 Flow rate control system and combustion control system having the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100689150B1 (en) * 2000-12-02 2007-03-08 주식회사 포스코 Multiplex control system of boiler air and fuel ratio

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03217709A (en) * 1990-01-22 1991-09-25 Matsushita Electric Ind Co Ltd Combustion device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03217709A (en) * 1990-01-22 1991-09-25 Matsushita Electric Ind Co Ltd Combustion device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030041361A (en) * 2001-11-19 2003-05-27 주식회사 경동보일러 Air proportionality type boiler
CN109869893A (en) * 2019-01-29 2019-06-11 广东万和热能科技有限公司 A kind of blower control method and system of gas heater
JP2022065370A (en) * 2020-10-15 2022-04-27 大阪瓦斯株式会社 Flow rate control system and combustion control system having the same
CN113062879A (en) * 2021-03-24 2021-07-02 中山华帝电子科技有限公司 Wind pressure resistance control method for hot water supply equipment
CN113062879B (en) * 2021-03-24 2023-08-22 中山华帝电子科技有限公司 Control method for wind pressure resistance of hot water supply equipment

Also Published As

Publication number Publication date
JP2664007B2 (en) 1997-10-15
KR940000799A (en) 1994-01-10
KR960004216B1 (en) 1996-03-28

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