JP2004176993A

JP2004176993A - Combustion equipment

Info

Publication number: JP2004176993A
Application number: JP2002343607A
Authority: JP
Inventors: Yasushi Shibata; 裕史柴田
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2002-11-27
Filing date: 2002-11-27
Publication date: 2004-06-24

Abstract

<P>PROBLEM TO BE SOLVED: To simplify work when repurchasing-installing a combustion equipment body by easily detecting an installation condition of existing supply-exhaust pipes. <P>SOLUTION: This combustion equipment is constituted so as to discriminate a state of the supply-exhaust pipes 1 and 14 and a supply-exhaust top 13 by pressure detected by heating and hot water supply secondary gas pressure detecting holes 10 and 19 when supplying combustion air in a noncombustion state. Thus, the work can be simplified when repurchasing-installing the combustion equipment body. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、給湯と暖房の排気が一体となった給・排気管および給排気トップを有する燃焼装置に関するもので、給・排気管の長さと給排気トップの種類を自動的に判別するようにしたものである。
【０００２】
【従来の技術】
従来、この種の燃焼装置は、買い替え等により装置本体を交換する場合、既設の給・排気管を有しているところに設置することになり、一般的に、買い替え時期は初期設置から約１０年以上経過している場合が多い。したがって、給・排気管の長さや配管の曲がり数等の設置条件が不明な場合が多く、給・排気管の状態を適切に判別することができなかった。また、給排気トップは、マンションの壁等に設置されることも多く、種類の多い給排気トップの詳細な構造まで判別を行うことも困難であった。さらに、給・排気管の設置条件や給排気トップの形状により、排気管の抵抗を同一抵抗にするために設定される排気ダンパーの設置を行う際、給・排気管の状態を適切に判別することができないため、適当に排気ダンパーの設定を行ったり、給・排気管の設置条件を無視した排気ダンパーの設定が行われていた。
【０００３】
また、給排気抵抗の検出方法としては、ファンモータの回転数を変化させて各回転数での電流値と電圧値を検出し、電流値を回転数のｎ次関数の関係式として算出することにより、給排気抵抗を検出するという方法が知られている（例えば、特許文献１参照）。
【０００４】
【特許文献１】
特開２０００−２４０９３７号公報
【０００５】
【発明が解決しようとする課題】
上記のように、従来の燃焼装置の買い替え設置時は、給・排気管の設置条件や給排気トップ形状が適切でない場合があり、給湯および暖房の燃焼は適切でない排気抵抗により、不完全燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、反対に、空気量過剰で給湯側もしくは暖房側の吹き消えの原因になるという課題を有していた。
【０００６】
また、従来の給排気抵抗の検出方法においては、電流検出および演算手段等において複雑な構成を必要とするものであった。
【０００７】
本発明は、上記従来の課題を解決するもので、簡単に給・排気管、給排気トップの状態を判別することができる燃焼装置を提供することを目的とするものである。
【０００８】
【課題を解決するための手段】
上記目的を達成するために、本発明の燃焼装置は、非燃焼状態で燃焼用空気を供給したときの給湯・暖房２次ガス圧検知孔で検出される圧力、または装置内圧力により、給・排気管、給排気トップの状態を判別するようにしたものである。
【０００９】
これにより、極めて簡単に給・排気管、給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができる。
【００１０】
【発明の実施の形態】
請求項１に記載の発明は、燃料供給を強制的に止める熱源機ガス元栓を有したガスパイプより分岐し給湯ガス比例弁を介して給湯燃焼装置に燃料を供給する給湯燃料供給装置と、前記給湯燃焼装置に燃焼用空気を供給する給湯ファンと、前記給湯ガス比例弁で調整されたガス量を確認する給湯２次ガス圧検知孔と、給湯熱交換器への通水を確認する給湯水量センサーと、前記ガスパイプより分岐し暖房ガス比例弁を介して暖房燃焼装置に燃料を供給する暖房燃料供給装置と、前記暖房燃焼装置に燃焼用空気を供給する暖房ファンと、前記暖房ガス比例弁で調整されたガス量を確認する暖房２次ガス圧検知孔と、暖房スイッチのＯＮにより駆動し暖房熱交換器を介して暖房水を循環する暖房ポンプと、燃焼用空気を吸気する給気管、燃焼ガスを排出する排気管および給気管と排気管の先端に設けた給排気トップと、燃焼ガスの排気抵抗を調節する排気ダンパーと、燃焼を制御する制御部とを備え、非燃焼状態で燃焼用空気を供給したときの給湯・暖房２次ガス圧検知孔で検出される圧力、または装置内圧力により、給・排気管、給排気トップの状態を判別する燃焼装置とすることにより、極めて簡単に給・排気管、給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができる。
【００１１】
請求項２に記載の発明は、熱源機ガス元栓を閉じた状態で給湯栓を開操作し、不着火状態における給湯ファン回転時の給湯２次ガス圧検知孔で検出される圧力により給・排気管の長さを判別するようにした請求項１に記載の燃焼装置とすることにより、極めて簡単に給・排気管の長さを判別することができる。
【００１２】
請求項３に記載の発明は、熱源機ガス元栓を閉じた状態で暖房スイッチをＯＮし、不着火状態における暖房ファン回転時の暖房２次ガス圧検知孔で検出される圧力により給・排気管の長さを判別するようにした請求項１に記載の燃焼装置とすることにより、極めて簡単に給・排気管の長さを判別することができるとともに、暖房運転を用いた場合は、給湯栓を開けて水を流す必要がないため、捨て水の必要がなく無駄な水の排出を防ぐことができる。
【００１３】
請求項４に記載の発明は、制御部にスイッチを設け、このスイッチを押すことにより非燃焼状態で給湯ファンが回転し、そのときの給湯２次ガス圧検知孔で検出される圧力から給・排気管の長さを判別するようにした請求項１に記載の燃焼装置とすることにより、制御部のスイッチ操作だけで非燃焼状態における給湯ファンの回転動作を確保できるため、熱源機ガス元栓を閉じた状態で給湯栓を開操作する必要がなく、より簡単な操作で給・排気管の長の長さを判別することができ、設置作業の簡素化が図れる。
【００１４】
請求項５に記載の発明は、制御部にスイッチを設け、このスイッチを押すことにより非燃焼状態で暖房ファンが回転し、そのときの暖房２次ガス圧検知孔で検出される圧力から給・排気管の長さを判別するようにした請求項１に記載の燃焼装置とすることにより、制御部のスイッチ操作だけで非燃焼状態における暖房ファンの回転動作を確保できるため、熱源機ガス元栓を閉じた状態で暖房スイッチをＯＮする必要がなく、より簡単な操作で給・排気管の長の長さを判別することができ、設置作業の簡素化が図れる。
【００１５】
請求項６に記載の発明は、熱源機ガス元栓を閉じた状態で給湯栓を開操作し、不着火状態における給湯ファン回転時の器具内圧力より、給排気トップを判別するようにした請求項１に記載の燃焼装置とすることにより、極めて簡単に給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができる。
【００１６】
請求項７に記載の発明は、熱源機ガス元栓を閉じた状態で暖房スイッチをＯＮし、不着火状態における暖房ファン回転時の器具内圧力より、給排気トップを判別するようにした請求項１に記載の燃焼装置とすることにより、暖房運転を用いて給排気トップの判別を行え、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができる。
【００１７】
請求項８に記載の発明は、制御部にスイッチを設け、このスイッチを押すことにより非燃焼状態で給湯ファンが回転し、そのときの装置内圧力から給排気トップを判別するようにした請求項１に記載の燃焼装置とすることにより、制御部のスイッチ操作だけで非燃焼状態における給湯ファンの回転動作を確保できるため、熱源機ガス元栓を閉じた状態で給湯栓を開操作する必要がなく、より簡単な操作で給排気トップを判別することができ、設置作業の簡素化が図れる。
【００１８】
請求項９に記載の発明は、制御部にスイッチを設け、このスイッチを押すことにより非燃焼状態で暖房ファンが回転し、そのときの装置内圧力から給排気トップを判別するようにした請求項１に記載の燃焼装置とすることにより、制御部のスイッチ操作だけで非燃焼状態における暖房ファンの回転動作を確保できるため、熱源機ガス元栓を閉じた状態で暖房スイッチをＯＮする必要がなく、より簡単な操作で給排気トップを判別することができ、設置作業の簡素化が図れる。
【００１９】
【実施例】
以下、本発明の実施例について図面を用いて説明する。
【００２０】
（実施例１）
図１は本発明の実施例１における燃焼装置を示すものである。
【００２１】
図に示すように、燃焼装置の暖房側の主要構成は次の構成要素より構成されている。すなわち、燃焼用空気を吸気する給気管１、燃焼ガスを排出する排気筒２、暖房水が循環する暖房熱交換器３、暖房タンク４、暖房熱交換器３に熱を供給する暖房燃焼装置５、暖房燃焼装置５に燃料を供給する暖房燃料供給装置６、暖房熱交換器３を介して暖房水を循環する暖房ポンプ７、暖房燃焼装置５に燃焼用空気を供給する暖房ファン８、暖房燃焼装置５へのガス量を調整する暖房ガス比例弁９、暖房ガス比例弁９で調整されたガス量を確認する暖房２次ガス圧検知孔１０、暖房ガス比例弁９へ接続した暖房元ガス弁１１、暖房元ガス弁１１が分岐されたガスパイプ１２、前記給気管１および燃焼ガスを排出する排気管１４の先端に設けた給排気トップ１３、燃焼ガスの排気抵抗を調節する排気ダンパー１５を備えている。
【００２２】
また、燃焼装置の給湯側の主要構成は次の構成要素より構成されている。すなわち、給湯水が得る給湯熱交換器１６、給湯熱交換器１６熱を供給する給湯燃焼装置１７、給湯燃焼装置１７に燃料を供給する給湯燃料供給装置１８、給湯ガス比例弁２０で調整されたガス量を確認する給湯２次ガス圧検知孔１９、給湯燃焼装置１７に燃焼用空気を供給する給湯ファン２１、給湯熱交換器１６への通水を確認する給湯水量センサー２２、給湯ガス比例弁２０へ接続した給湯元ガス弁２３を備えている。給湯元ガス弁２３はガスパイプ１２から分岐されている。また、給湯熱交換器１６への通水は給湯栓３０によりコントロールしている。
【００２３】
そして、暖房・給湯の共用要素として、燃焼を制御する制御部２４、ガスパイプ１２に装備し燃料供給を強制的に止める熱源機ガス元栓２５、制御部２４に設けたスイッチ２７を備えている。また、暖房用として暖房スイッチ２６も備えている。
【００２４】
ここで、本実施例においては、非燃焼状態で燃焼用空気を供給したときの給湯・暖房２次ガス圧検知孔１０、１９で検出される圧力、または装置内圧力により、給・排気管１、１４、給排気トップ１３の状態を判別するようにしている。図１においては、給湯・暖房２次ガス圧検知孔１０、１９に、それぞれマノメーター等の圧力を計ることができる測定器２８、２９を接続して圧力を測定している場合を例示している。
【００２５】
次に、上記した燃焼装置の動作について説明する。まず、暖房燃焼について説明すると、暖房スイッチ２６をＯＮすると、暖房ポンプ７が始動し、暖房熱交換器３内の暖房水が循環し、同時に燃焼用空気を供給する暖房ファン８が回転し、暖房元ガス弁１１が開いてガスパイプ１２から燃料が供給され、暖房燃焼装置５で燃焼が開始する。このときの燃料の量は暖房ガス比例弁９によって調整され、暖房２次ガス圧検知孔１０の圧力を検出することにより、ガス量を確認するようにしている。また、ガスが供給されずに燃焼動作に入り燃焼検知しなかった場合は、給湯燃焼時と同様、初期点火エラーでパージ状態となり、暖房ファン８を所定時間回転するようになっている。
【００２６】
次に、給湯燃焼においては、給湯入口より給湯栓３０を介して供給された水を給湯水量センサー２２が検知し、給湯ファン２１が回転する。そして、給湯元ガス弁２３が開き、ガスパイプ１２から燃料が供給され、前記給湯ファン２１より供給された空気と混合して給湯燃焼装置１７で燃焼が開始される。また、このとき燃料の量は給湯ガス比例弁２０によって調整され、給湯熱交換器１６で熱交換されて給湯出口側より湯が供給される。給湯ガス比例弁２０によって調整されたガス量は、給湯２次ガス圧検知孔１９で圧力を検出することにより、確認するようになっている。また、ガスが供給されずに燃焼動作に入り燃焼検知しなかった場合は、初期点火エラーでパージ状態となり、給湯ファン２１が所定時間回転する。なお、上記した暖房燃焼および給湯燃焼の制御は制御部２４で行っている。
【００２７】
ここで、装置本体の買い替え設置等においては、熱源機ガス元栓２５を閉じた状態で、給湯栓３０を開にし水を流すことにより、ガスが供給されずに燃焼動作に入る。しかし、ガスの供給がないため燃焼は行われず不着火検知で装置は停止する。そして、燃焼検知しなかった場合は、初期点火エラーになりパージ状態となって、給湯ファン２１が数秒回転し排気動作を行う。その状態で給湯ファン２１が回転しているときの給湯２次ガス圧検知孔１９の圧力を測定器２９で測定する。
【００２８】
その測定された給湯２次ガス検知孔１９の圧力により、図２（ａ）に示すグラフより、給・排気管１、１４の長さを判別している。この場合、予め給湯２次ガス圧検知孔１９の圧力と排管長の関係は実験等で求めておく必要がある。また、配管長と曲がりの関係は、１曲がりあたりの排気抵抗を排管の直管ｎ本相当として求めておく。
【００２９】
この例では１曲がりあたりを３．５ｍ直管相当の排気抵抗として説明している。これにより、例えば、最大延長長さが７ｍ３曲がりと仮定すると直管相当の排管長は１７．５ｍとなる。以上により、例えば、給湯２次ガス圧検知孔１９の圧力が４３ｍｍＨ２Ｏと測定された場合、図２（ｂ）から排管長は７ｍから１０ｍの間の長さであることが判別でき、この場合の排気ダンパー１５の設定はＢであることがわかる。これにより、極めて簡単に給・排気管１、１４の状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができる。したがって、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００３０】
（実施例２）
次に、本発明の実施例２における燃焼装置について図１、図２により説明する。構成は実施例１と同様であるので、相違点についてのみ説明する。
【００３１】
本実施例では、装置本体の買い替え設置等においては、熱源機ガス元栓２５を閉じた状態で暖房スイッチ２６をＯＮする。この操作によりガスが供給されずに燃焼動作に入るが、ガスがないために燃焼が行われず燃焼検知せず装置は停止する。燃焼検知しなかった場合は、初期点火エラーになりパージ状態により、暖房ファン８が数秒回転しパージ状態になる。その状態で暖房ファン８が回転しているときの暖房２次ガス圧検知孔１０の圧力を測定器２８で測定する。
【００３２】
そのときの暖房２次ガス圧検知孔１０の圧力から給・排気管１、１４の長さを判別することができる。実施例１と同様に、暖房２次ガス圧検知孔１０の圧力と排管長の関係は実験等で求めておく必要がある。
【００３３】
また、排管長と曲がりの関係は、実施例１と同様に、１曲がりあたりの排気抵抗を排管の直管ｎ本相当として求めておく（実施例１と同様の関係が得られる）。これにより適切な排気ダンパー１５の設定を行うことができる。したがって、極めて簡単に給・排気管１、１４の状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができることはもちろんのこと、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００３４】
また、実施例１と比較して、暖房スイッチ２６による操作のため、給湯栓３０を開けて水を流す必要がなく、捨て水の無駄を防ぐことができる。
【００３５】
（実施例３）
次に、本発明の実施例３における燃焼装置について図１、図２により説明する。構成は実施例１と同様であるので、相違点についてのみ説明する。
【００３６】
本実施例では、装置本体の買い替え設置等においては、制御部２４に設けたスイッチ２７を押すことにより、給湯ファン２１が数秒回転する。その状態で給湯ファン２１が回転しているときの給湯２次ガス圧検知孔１９の圧力を測定器２９で測定する。その測定された給湯２次ガス検知孔１９の圧力により、図２（ａ）のグラフより、給・排気管１、１４の長さを判別することができる。したがって、極めて簡単に給・排気管１、１４の状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができることはもちろんのこと、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００３７】
また、実施例１と比較して、制御部２４のスイッチ２７による操作のため、熱源機ガス元栓２５を閉じたり、給湯栓３０を開けたりといった複雑な操作の必要がなく、作業の簡素化を図ることができ時間短縮となるとともに、給湯栓３０を開けて水を流す必要がないため、捨て水の無駄を防ぐことができる。
【００３８】
（実施例４）
次に、本発明の実施例４における燃焼装置について図１、図２により説明する。構成は実施例１と同様であるので、相違点についてのみ説明する。
【００３９】
本実施例では、装置本体の買い替え設置等においては、制御部２４のスイッチ２７を押すことにより暖房ファン８が数秒回転する。その状態で暖房ファン８が回転しているときの暖房２次ガス圧検知孔１０の圧力を測定器２８で測定する。そのときの暖房２次ガス圧検知孔１０の圧力から給・排気管１、１４の長さを判別することができる。これも実施例２と同様に、暖房２次ガス圧検知孔１０の圧力と排管長の関係は実験等で求めておく必要がある（暖房ファン８のパージ回転数が同一の場合、実施例２と同じグラフが得られる）。これにより、極めて簡単に給・排気管１、１４の状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができることはもちろんのこと、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００４０】
また、実施例２と比較して、作業は制御部２４のスイッチ２７を押すだけであり、熱源機ガス元栓２５を閉じたりといった複雑な操作の必要がなく作業の簡素化を図ることができ時間短縮となる。
【００４１】
（実施例５）
次に、本発明の実施例５における燃焼装置について図３、図４により説明する。基本構成は実施例１と同様であるので、相違点についてのみ説明する。
【００４２】
本実施例では、図に示すように、燃焼装置のフロントを閉塞部材３１で閉塞した状態において、装置内圧力を測定器３２で測定している。これは、給・排気管１、１４の長さは実設置の現場において判別できているが、給排気トップ１３の種類が数種類あって、その判別ができない場合に適用される。あるいは、給・排気管１、１４の長さをおよその長さにしておき、給排気トップ１３の種類が判別後、実施例１〜４の方法にて給・排気管の長さを再測定する方法もある。
【００４３】
本実施例では、熱源機ガス元栓２５を閉じた状態で給湯栓３０を開にし水を流す。上記操作によりガスが供給されずに燃焼動作に入るが、ガスがないために燃焼が行われず燃焼検知せず機器は停止する。燃焼検知しなかった場合は、初期点火エラーになりパージ状態により、給湯ファン２１が数秒回転しパージ状態になる。その状態で給湯ファン２１が回転しているときの装置内圧力を測定器３２で測定する。その測定された器具内圧の圧力により、図４（ａ）のグラフより、給排気トップ１３を判別することができる。この場合、予め装置内圧力と排管長の関係は実験等で求めておく必要がある（給湯ファン２１回転時の装置内圧力と排管長の関係）。また排管長と曲がりの関係は、１曲がりあたりの排気抵抗を排管の直管ｎ本相当として求めておく（実施例１と同様の関係が得られる）。ここの例では１曲がりあたりを３．５ｍ直管相当の排気抵抗として説明している。
【００４４】
例えば、最大延長長さが７ｍ３曲がりと仮定すると直管相当の排管長は１７．５ｍとなる。以上により、例えば、排管長が４ｍ２曲がりとすれば直管相当で１１ｍとなる。このとき装置内圧力で測定された圧力が−１７．５ｍｍＨ２Ｏと測定された場合、給排気トップ１３はトップＡであることが判別できる。また、図４（ｂ）より、この場合の排気ダンパー１５の設定はＣであることがわかる。これにより適切な排気ダンパー１５設定を行うことができる。したがって、極めて簡単に給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができることはもちろんのこと、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００４５】
（実施例６）
次に、本発明の実施例６における燃焼装置について図３、図４により説明する。基本構成は実施例１と同様であるので、相違点についてのみ説明する。
【００４６】
本実施例では、図に示すように、燃焼装置のフロントを閉塞部材３１で閉塞した状態において、装置内圧力を測定器３２で測定している。これは、給・排気管１、１４の長さは実設置の現場において判別できているが、給排気トップ１３の種類が数種類あって、その判別ができない場合に適用される。あるいは、給・排気管１、１４の長さをおよその長さにしておき、給排気トップ１３の種類が判別後、実施例１〜４の方法にて給・排気管の長さを再測定する方法もある。
【００４７】
本実施例では、熱源機ガス元栓２５を閉じた状態で暖房スイッチ２６をＯＮする。上記操作によりガスが供給されずに燃焼動作に入るが、ガスがないために燃焼が行われず燃焼検知せず機器は停止する。燃焼検知しなかった場合は、初期点火エラーになりパージ状態により、暖房ファン８が数秒回転しパージ状態になる。その状態で暖房ファン８が回転しているときの装置内圧力から給排気トップ１３を判別することができる。
【００４８】
これも実施例５と同様、図４（ａ）に示すグラフより、給排気トップ１３を判別することができる。この場合、予め装置内圧力と排管長の関係は実験等で求めておく必要がある（暖房ファン８回転時の器具内圧力と排管長の関係）。また、排管長と曲がりの関係は、１曲がりあたりの排気抵抗を排管の直管ｎ本相当として求めておく（実施例１と同様の関係が得られる）。これにより、極めて簡単に給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができることはもちろんのこと、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００４９】
また、暖房スイッチ８による操作のため、給湯栓３０を開けて水を流す必要がないため、捨て水の必要がなく無駄な水の排出を防ぐことができる。
【００５０】
（実施例７）
次に、本発明の実施例７における燃焼装置について図３、図４により説明する。基本構成は実施例１と同様であるので、相違点についてのみ説明する。
【００５１】
本実施例では、図に示すように、燃焼装置のフロントを閉塞部材３１で閉塞した状態において、装置内圧力を測定器３２で測定している。これは、給・排気管１、１４の長さは実設置の現場において判別できているが、給排気トップ１３の種類が数種類あって、その判別ができない場合に適用される。あるいは、給・排気管１、１４の長さをおよその長さにしておき、給排気トップ１３の種類が判別後、実施例１〜４の方法にて給・排気管の長さを再測定する方法もある。
【００５２】
本実施例では、制御部２４のスイッチ２７を押すことにより給湯ファン２１が回転する。その状態で給湯ファン２１が回転しているときの装置内圧力を測定器３２で測定する。その測定された装置内圧力により、図４（ａ）のグラフより、給排気トップ１３を判別することができる。これにより、極めて簡単に給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができることはもちろんのこと、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００５３】
また、制御部２４のスイッチ２７による操作のため、給湯栓３０を開けて水を流す必要がないため、捨て水の必要がなく無駄な水の排出を防ぐことができる。また、作業は制御部２４のスイッチ２７を押すだけであり、熱源機ガス元栓２５を閉じたり、給湯栓３０を開いたりといった複雑な操作の必要がなく、作業の簡素化を図ることができ時間短縮となる。
【００５４】
（実施例８）
次に、本発明の実施例８における燃焼装置について図３、図４により説明する。
【００５５】
本実施例は、給排気トップ１３の判別を、暖房運転を利用して行う場合であり、方法は実施例７と同様である。
【００５６】
本実施例においては、制御部２４のスイッチ２７を押すことにより、暖房ファン８が回転する。上記操作により暖房ファン８が数秒回転し、その状態で暖房ファン８が回転しているときの装置内圧力から給排気トップ１３を判別することができる。これも実施例６と同様な装置内圧力と排管長のグラフより、給排気トップ１３を判別することができる。これにより、極めて簡単に給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができることはもちろんのこと、給湯および暖房の燃焼は適切な排気抵抗により、給湯および暖房の燃焼が適切な燃焼となり、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【００５７】
本実施例も制御部２４のスイッチ２７を押すだけであり、熱源機ガス元栓２５を閉じたりといった複雑な操作の必要がなく、作業の簡素化を図ることができ時間短縮となる。また、熱源機ガス元栓２５を閉じたりといった複雑な操作の必要がなく、作業の簡素化を図ることができ時間短縮となる。
【００５８】
上記した各実施例はそれぞれを適宜組合せて構成することもできるものであり、実施例そのものに限られるものではない。
【００５９】
【発明の効果】
以上のように、本発明の燃焼装置によれば、非燃焼状態で燃焼用空気を供給したときの給湯・暖房２次ガス圧検知孔で検出される圧力、または装置内圧力により、給・排気管、給排気トップの状態を判別するようにしたものであり、極めて簡単に給・排気管、給排気トップの状態を圧力で判別することができ、装置本体の買い替え設置等において、設置工事の簡素化を図りつつ、適正な燃焼状態の確保ができる。
【００６０】
よって、給湯および暖房の燃焼は適切な排気抵抗により、空気量不足で一酸化炭素を排出したり、異常音の発生の原因となったり、空気量過剰で給湯側もしくは暖房側の吹き消えの原因を解決することができる。
【図面の簡単な説明】
【図１】本発明の実施例１〜４おける燃焼装置の構成図
【図２】（ａ）同燃焼装置における給湯側の２次ガス圧検知孔圧力と配管長の関係を示す図
（ｂ）同燃焼装置における給湯側の２次ガス圧検知孔圧とダンパー設定を示す図
【図３】本発明の実施例５〜８における燃焼装置の圧力測定を示す図
【図４】同燃焼装置における装置内圧力と配管長の関係を示す図
【符号の説明】
１給気管
３暖房熱交換器
５暖房燃焼装置
６暖房燃料供給装置
７暖房ポンプ
８暖房ファン
９暖房ガス比例弁
１０暖房２次ガス圧検知孔
１１暖房元ガス弁
１２ガスパイプ
１３給排気トップ
１４排気管
１５排気ダンパー
１６給湯熱交換器
１７給湯燃焼装置
１８給湯燃料供給装置
１９給湯２次ガス圧検知孔
２０給湯ガス比例弁
２１給湯ファン
２２給湯水量センサー
２３給湯元ガス弁
２４制御部
２５熱源機ガス元栓
２６暖房スイッチ
２７スイッチ
２８、２９、３２測定器
３０給湯栓
３１閉塞部材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a combustion apparatus having a supply / exhaust pipe and a supply / exhaust top in which hot water supply and heating exhaust are integrated, so that the length of the supply / exhaust pipe and the type of the supply / exhaust top are automatically determined. It was done.
[0002]
[Prior art]
Conventionally, when replacing the main body of the combustion apparatus by replacement or the like, the combustion apparatus has to be installed in a place having an existing supply / exhaust pipe. Many years have passed. Therefore, in many cases, the installation conditions such as the length of the supply / exhaust pipe and the number of bent pipes are unknown, and the state of the supply / exhaust pipe cannot be properly determined. In addition, the air supply / exhaust top is often installed on the wall of an apartment or the like, and it has been difficult to determine even the detailed structure of the air supply / exhaust top of various types. In addition, when installing an exhaust damper set to make the resistance of the exhaust pipe the same resistance according to the installation conditions of the supply and exhaust pipes and the shape of the supply and exhaust top, the state of the supply and exhaust pipes is properly determined. Therefore, the setting of the exhaust damper has been appropriately performed, and the setting of the exhaust damper has been performed ignoring the installation conditions of the supply and exhaust pipes.
[0003]
As a method of detecting the supply / exhaust resistance, the current value and the voltage value at each rotation speed are detected by changing the rotation speed of the fan motor, and the current value is calculated as a relational expression of an n-th order function of the rotation speed. A method of detecting supply / exhaust resistance is known (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP 2000-240937 A
[0005]
[Problems to be solved by the invention]
As described above, when replacing and installing the conventional combustion device, the installation conditions of the supply and exhaust pipes and the top shape of the supply and exhaust may not be appropriate, and the combustion of hot water and heating will be incomplete combustion due to inappropriate exhaust resistance. However, there is a problem in that carbon monoxide is discharged due to an insufficient amount of air, abnormal noise is generated, and conversely, an excess amount of air causes blowout on the hot water supply side or the heating side.
[0006]
In addition, the conventional method for detecting the supply / exhaust resistance requires a complicated configuration in the current detection and calculation means.
[0007]
An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a combustion device that can easily determine the states of a supply / exhaust pipe and a supply / exhaust top.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the combustion device of the present invention uses the pressure detected by the hot water / heating secondary gas pressure detection hole when the combustion air is supplied in a non-combustion state, or the internal pressure of the device. The state of the exhaust pipe and the supply / exhaust top are determined.
[0009]
As a result, the state of the supply / exhaust pipe and the top of the supply / exhaust pipe can be extremely easily determined by pressure, and in replacement installation of the apparatus body, etc., it is possible to ensure an appropriate combustion state while simplifying installation work. .
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 is a hot water supply fuel supply device that branches off from a gas pipe having a heat source unit gas main plug forcibly stopping fuel supply and supplies fuel to a hot water supply combustion device via a hot water supply gas proportional valve, and the hot water supply device. A hot-water supply fan that supplies combustion air to the combustion device, a hot-water supply secondary gas pressure detection hole that checks the gas amount adjusted by the hot-water supply gas proportional valve, and a hot-water supply amount sensor that checks water flow to the hot-water supply heat exchanger. A heating fuel supply device that branches off from the gas pipe and supplies fuel to a heating combustion device through a heating gas proportional valve, a heating fan that supplies combustion air to the heating combustion device, and adjustment by the heating gas proportional valve. A heating secondary gas pressure detection hole for confirming the amount of gas supplied, a heating pump driven by turning on a heating switch and circulating heating water through a heating heat exchanger, an air supply pipe for sucking combustion air, and a combustion gas To An exhaust pipe and an air supply pipe, and a supply / exhaust top provided at the end of the exhaust pipe, an exhaust damper for adjusting the exhaust resistance of the combustion gas, and a control unit for controlling combustion. By using a combustion device that determines the state of the supply / exhaust pipe and the top of the supply / exhaust pipe based on the pressure detected at the secondary gas pressure detection hole when hot water / heating is supplied, or the internal pressure of the apparatus, it is extremely easy to supply / The state of the exhaust pipe and the supply / exhaust top can be determined by the pressure, and in replacement installation of the apparatus main body, etc., it is possible to ensure an appropriate combustion state while simplifying installation work.
[0011]
According to the second aspect of the present invention, the hot water supply tap is opened with the heat source unit gas main plug closed, and the supply / exhaust is performed by the pressure detected at the hot water supply secondary gas pressure detection hole when the hot water supply fan rotates in the non-ignition state. According to the combustion apparatus of the first aspect, in which the length of the pipe is determined, the length of the supply / exhaust pipe can be determined extremely easily.
[0012]
According to a third aspect of the present invention, the heating switch is turned on in a state in which the gas source plug of the heat source unit is closed, and the supply / exhaust pipe is provided by the pressure detected at the heating secondary gas pressure detection hole when the heating fan rotates in the non-ignition state. The length of the supply / exhaust pipe can be determined very easily by using the combustion device according to claim 1 wherein the length of the supply / exhaust pipe is determined. Since there is no need to open the water and allow water to flow, there is no need to dispose of water, and wasteful discharge of water can be prevented.
[0013]
According to a fourth aspect of the present invention, a switch is provided in the control section, and when the switch is pressed, the hot water supply fan rotates in a non-combustion state, and the supply of water is performed based on the pressure detected at the hot water supply secondary gas pressure detection hole at that time. With the combustion device according to claim 1, wherein the length of the exhaust pipe is determined, the rotation of the hot water supply fan in the non-combustion state can be ensured only by operating the switch of the control unit. There is no need to open the hot-water tap in the closed state, and the length of the supply / exhaust pipe can be determined with a simpler operation, thereby simplifying the installation work.
[0014]
According to a fifth aspect of the present invention, a switch is provided in the control unit, and when the switch is pressed, the heating fan rotates in a non-combustion state, and the supply / discharge is determined based on the pressure detected by the heating secondary gas pressure detection hole at that time. With the combustion device according to claim 1, wherein the length of the exhaust pipe is determined, the heating operation of the heating fan in the non-combustion state can be ensured only by operating the switch of the control unit. There is no need to turn on the heating switch in the closed state, and the length of the supply / exhaust pipe can be determined with a simpler operation, and the installation work can be simplified.
[0015]
The invention described in claim 6 is characterized in that the hot water supply tap is opened with the heat source unit gas main plug closed, and the supply / exhaust top is determined from the pressure inside the appliance when the hot water supply fan rotates in the non-ignition state. By using the combustion device described in 1, the state of the air supply / exhaust top can be determined very easily by pressure. In replacement installation of the device main body, etc., it is possible to simplify the installation work while maintaining the proper combustion state. Can be secured.
[0016]
According to a seventh aspect of the present invention, the heating switch is turned on while the gas source plug of the heat source unit is closed, and the supply / exhaust top is determined based on the pressure inside the appliance when the heating fan rotates in the non-ignition state. By using the combustion device described in (1), the top of the supply and exhaust can be determined using the heating operation, and in replacement installation of the device main body, etc., it is possible to secure an appropriate combustion state while simplifying installation work.
[0017]
In the invention described in claim 8, a switch is provided in the control unit, and when the switch is pressed, the hot water supply fan rotates in a non-combustion state, and the top of the supply / exhaust air is determined from the internal pressure of the device at that time. By using the combustion device described in 1, the rotation of the hot water supply fan in the non-combustion state can be ensured only by the switch operation of the control unit, so that it is not necessary to open the hot water tap with the heat source unit gas main valve closed. The top of the air supply and exhaust can be determined by a simpler operation, and the installation work can be simplified.
[0018]
According to a ninth aspect of the present invention, the control unit is provided with a switch, and when the switch is pressed, the heating fan rotates in a non-combustion state, and the supply / exhaust top is determined from the internal pressure of the device at that time. By using the combustion device described in 1, the rotation operation of the heating fan in the non-combustion state can be ensured only by the switch operation of the control unit, so that it is not necessary to turn on the heating switch with the heat source unit gas main plug closed. The supply / exhaust top can be determined with a simpler operation, and the installation work can be simplified.
[0019]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0020]
(Example 1)
FIG. 1 shows a combustion apparatus according to Embodiment 1 of the present invention.
[0021]
As shown in the figure, the main configuration on the heating side of the combustion device is composed of the following components. That is, an air supply pipe 1 for inhaling combustion air, an exhaust pipe 2 for discharging combustion gas, a heating heat exchanger 3 for circulating heating water, a heating tank 4, and a heating combustion device 5 for supplying heat to the heating heat exchanger 3. A heating fuel supply device 6 for supplying fuel to the heating combustion device 5, a heating pump 7 for circulating heating water through the heating heat exchanger 3, a heating fan 8 for supplying combustion air to the heating combustion device 5, a heating combustion The heating gas proportional valve 9 for adjusting the gas amount to the device 5, the heating secondary gas pressure detecting hole 10 for confirming the gas amount adjusted by the heating gas proportional valve 9, the heating source gas valve connected to the heating gas proportional valve 9. 11, a gas pipe 12 from which a heating source gas valve 11 is branched, a supply / exhaust top 13 provided at an end of the intake pipe 1 and an exhaust pipe 14 for exhausting combustion gas, and an exhaust damper 15 for adjusting exhaust resistance of the combustion gas. ing.
[0022]
The main configuration of the hot water supply side of the combustion device is composed of the following components. That is, the hot water supply heat exchanger 16 for obtaining hot water, the hot water supply heat exchanger 16, the hot water supply combustion device 17 for supplying heat, the hot water supply device 18 for supplying fuel to the hot water supply combustion device 17, and the hot water supply gas proportional valve 20 are adjusted. A hot water supply secondary gas pressure detection hole 19 for checking the gas amount, a hot water supply fan 21 for supplying combustion air to the hot water supply combustion device 17, a hot water supply amount sensor 22 for confirming the flow of water to the hot water supply heat exchanger 16, a hot water supply gas proportional valve A hot water supply source gas valve 23 connected to the hot water supply source 20 is provided. The hot water supply gas valve 23 is branched from the gas pipe 12. The flow of water to the hot water supply heat exchanger 16 is controlled by a hot water tap 30.
[0023]
As a common element for heating and hot water supply, there are provided a control unit 24 for controlling combustion, a heat source unit gas main plug 25 mounted on the gas pipe 12 to forcibly stop fuel supply, and a switch 27 provided on the control unit 24. Further, a heating switch 26 is provided for heating.
[0024]
Here, in this embodiment, the supply / exhaust pipe 1 is supplied by the pressure detected by the hot water / heating secondary gas pressure detection holes 10 and 19 when the combustion air is supplied in a non-combustion state, or by the internal pressure of the apparatus. , 14 and the state of the supply / exhaust top 13 are determined. FIG. 1 illustrates a case in which measuring devices 28 and 29 such as a manometer are connected to the hot water / heating secondary gas pressure detecting holes 10 and 19, respectively, to measure the pressure. .
[0025]
Next, the operation of the above-described combustion device will be described. First, the heating combustion will be described. When the heating switch 26 is turned on, the heating pump 7 starts, the heating water in the heating heat exchanger 3 circulates, and at the same time, the heating fan 8 that supplies the combustion air rotates, and The main gas valve 11 is opened, fuel is supplied from the gas pipe 12, and combustion is started in the heating combustion device 5. The amount of fuel at this time is adjusted by the heating gas proportional valve 9, and the gas amount is confirmed by detecting the pressure of the heating secondary gas pressure detection hole 10. Further, when the combustion operation is started without supplying the gas and the combustion is not detected, as in the case of hot water supply combustion, a purge state occurs due to an initial ignition error, and the heating fan 8 is rotated for a predetermined time.
[0026]
Next, in hot water supply combustion, the hot water supply amount sensor 22 detects water supplied from the hot water supply inlet via the hot water tap 30, and the hot water supply fan 21 rotates. Then, the hot water supply source gas valve 23 is opened, fuel is supplied from the gas pipe 12, mixed with the air supplied from the hot water supply fan 21, and combustion is started in the hot water supply combustion device 17. At this time, the amount of fuel is adjusted by the hot water supply gas proportional valve 20, heat is exchanged in the hot water supply heat exchanger 16, and hot water is supplied from the hot water supply outlet side. The gas amount adjusted by the hot water supply gas proportional valve 20 is confirmed by detecting the pressure at the hot water supply secondary gas pressure detection hole 19. Further, when the combustion operation is started without supplying the gas and the combustion is not detected, the purge state occurs due to an initial ignition error, and the hot water supply fan 21 rotates for a predetermined time. The control of the heating combustion and the hot water supply combustion is performed by the control unit 24.
[0027]
Here, in replacement installation of the main body of the apparatus or the like, the hot-water tap 30 is opened and water is flown in a state where the gas source plug 25 of the heat source unit is closed, so that the combustion operation is started without supplying gas. However, since there is no gas supply, combustion is not performed, and the apparatus stops upon detection of misfire. If the combustion is not detected, an initial ignition error occurs and a purge state occurs, and the hot water supply fan 21 rotates for several seconds to perform an exhaust operation. In this state, the pressure in the hot water supply secondary gas pressure detection hole 19 when the hot water supply fan 21 is rotating is measured by the measuring device 29.
[0028]
Based on the measured pressure of the hot water supply secondary gas detection hole 19, the lengths of the supply and exhaust pipes 1 and 14 are determined from the graph shown in FIG. In this case, the relationship between the pressure of the hot water supply secondary gas pressure detection hole 19 and the length of the drainage pipe needs to be obtained in advance through experiments or the like. In addition, the relationship between the pipe length and the bend is determined assuming that the exhaust resistance per bend is equivalent to n straight pipes of the exhaust pipe.
[0029]
In this example, one bend is described as an exhaust resistance equivalent to a 3.5 m straight pipe. Thus, for example, assuming that the maximum extension length is 7 m3 bend, the drainage length equivalent to a straight pipe is 17.5 m. As described above, for example, when the pressure of the hot water supply secondary gas pressure detection hole 19 is measured as 43 mmH2O, it can be determined from FIG. 2B that the drainage pipe length is between 7 m and 10 m. It can be seen that the setting of the exhaust damper 15 is B. This makes it possible to determine the state of the supply / exhaust pipes 1 and 14 by pressure very easily, and to secure an appropriate combustion state while simplifying installation work in replacement installation of the apparatus body or the like. Therefore, in hot water supply and heating combustion, due to appropriate exhaust resistance, hot water supply and heating combustion become appropriate combustion, and carbon monoxide is discharged due to insufficient air volume, abnormal noise may be generated, and air volume may be excessive. Thus, the cause of the blowout on the hot water supply side or the heating side can be solved.
[0030]
(Example 2)
Next, a combustion apparatus according to a second embodiment of the present invention will be described with reference to FIGS. Since the configuration is the same as that of the first embodiment, only the differences will be described.
[0031]
In the present embodiment, when the apparatus main body is replaced or installed, the heating switch 26 is turned on with the heat source unit gas main plug 25 closed. By this operation, the combustion operation is started without supplying the gas. However, since there is no gas, the combustion is not performed, the combustion is not detected, and the apparatus stops. If combustion is not detected, an initial ignition error occurs, and the purge state causes the heating fan 8 to rotate for several seconds to enter the purge state. In this state, the pressure in the heating secondary gas pressure detection hole 10 when the heating fan 8 is rotating is measured by the measuring device 28.
[0032]
The length of the supply / exhaust pipes 1 and 14 can be determined from the pressure of the heating secondary gas pressure detection hole 10 at that time. As in the first embodiment, the relationship between the pressure of the heating secondary gas pressure detection hole 10 and the length of the exhaust pipe needs to be determined through experiments and the like.
[0033]
In addition, the relationship between the length of the exhaust pipe and the bend is determined in the same manner as in the first embodiment, assuming that the exhaust resistance per bend is equivalent to n straight pipes of the exhaust pipe (the same relationship as in the first embodiment is obtained). Thereby, appropriate setting of the exhaust damper 15 can be performed. Therefore, the state of the supply / exhaust pipes 1 and 14 can be extremely easily determined by the pressure, and in replacement installation of the apparatus main body, of course, it is possible to ensure an appropriate combustion state while simplifying the installation work. In the hot water supply and heating combustion, due to appropriate exhaust resistance, the hot water supply and heating combustion become appropriate combustion, and carbon monoxide is discharged due to insufficient air volume, causing abnormal noise, It is possible to solve the cause of blow-off on the hot water supply side or the heating side due to excess.
[0034]
In addition, compared to the first embodiment, since the operation is performed by the heating switch 26, it is not necessary to open the hot water tap 30 and allow the water to flow, thereby preventing waste water from being wasted.
[0035]
(Example 3)
Next, a combustion apparatus according to a third embodiment of the present invention will be described with reference to FIGS. Since the configuration is the same as that of the first embodiment, only the differences will be described.
[0036]
In the present embodiment, when the device main body is replaced or installed, pressing the switch 27 provided on the control unit 24 causes the hot water supply fan 21 to rotate for several seconds. In this state, the pressure in the hot water supply secondary gas pressure detection hole 19 when the hot water supply fan 21 is rotating is measured by the measuring device 29. The length of the supply / exhaust pipes 1 and 14 can be determined from the graph of FIG. 2A based on the measured pressure of the hot water supply secondary gas detection hole 19. Therefore, the state of the supply / exhaust pipes 1 and 14 can be extremely easily determined by the pressure, and in replacement installation of the apparatus main body, of course, it is possible to ensure an appropriate combustion state while simplifying the installation work. In the hot water supply and heating combustion, due to appropriate exhaust resistance, the hot water supply and heating combustion become appropriate combustion, and carbon monoxide is discharged due to insufficient air volume, causing abnormal noise, It is possible to solve the cause of blow-off on the hot water supply side or the heating side due to excess.
[0037]
Further, compared to the first embodiment, the operation by the switch 27 of the control unit 24 eliminates the need for complicated operations such as closing the gas source plug 25 of the heat source unit and opening the hot water tap 30, thereby simplifying the operation. It is possible to shorten the time, and it is not necessary to open the hot-water tap 30 and let the water flow, so that the waste water can be prevented from being wasted.
[0038]
(Example 4)
Next, a combustion apparatus according to a fourth embodiment of the present invention will be described with reference to FIGS. Since the configuration is the same as that of the first embodiment, only the differences will be described.
[0039]
In the present embodiment, when the device main body is replaced or installed, pressing the switch 27 of the control unit 24 causes the heating fan 8 to rotate for several seconds. In this state, the pressure in the heating secondary gas pressure detection hole 10 when the heating fan 8 is rotating is measured by the measuring device 28. The length of the supply / exhaust pipes 1 and 14 can be determined from the pressure of the heating secondary gas pressure detection hole 10 at that time. Similarly to the second embodiment, the relationship between the pressure of the heating secondary gas pressure detection hole 10 and the length of the exhaust pipe needs to be obtained through experiments and the like (when the purge rotation speed of the heating fan 8 is the same, the second embodiment is used). The same graph is obtained). As a result, the state of the supply / exhaust pipes 1 and 14 can be determined very easily by the pressure, and it is possible to secure an appropriate combustion state while simplifying the installation work in replacement installation of the apparatus body or the like. Of course, the combustion of hot water supply and heating becomes appropriate combustion due to the appropriate exhaust resistance, and the combustion of hot water supply and heating becomes appropriate combustion, exhausting carbon monoxide due to insufficient air volume, causing abnormal noise, and Excessive quantity can solve the cause of blowout on the hot water supply side or the heating side.
[0040]
Further, as compared with the second embodiment, the operation is merely by pressing the switch 27 of the control unit 24, and there is no need to perform a complicated operation such as closing the gas source plug 25 of the heat source unit. It will be shortened.
[0041]
(Example 5)
Next, a combustion apparatus according to a fifth embodiment of the present invention will be described with reference to FIGS. Since the basic configuration is the same as that of the first embodiment, only the differences will be described.
[0042]
In the present embodiment, as shown in the figure, the pressure inside the combustion device is measured by the measuring device 32 in a state where the front of the combustion device is closed by the closing member 31. This is applied when the length of the supply / exhaust pipes 1 and 14 can be determined at the actual installation site, but there are several types of the supply / exhaust tops 13 and the determination cannot be made. Alternatively, the length of the supply / exhaust pipes 1 and 14 is set to approximately the length, and after the type of the supply / exhaust top 13 is determined, the lengths of the supply / exhaust pipes are measured again by the method of the first to fourth embodiments. There is also a way to do it.
[0043]
In the present embodiment, the hot-water tap 30 is opened and water is allowed to flow while the gas source tap 25 for the heat source unit is closed. By the above operation, the combustion operation is started without supplying the gas. However, since there is no gas, the combustion is not performed, the combustion is not detected, and the device stops. If the combustion is not detected, an initial ignition error occurs and the hot water supply fan 21 rotates for several seconds due to the purge state, and enters the purge state. In this state, the pressure inside the device when the hot water supply fan 21 is rotating is measured by the measuring device 32. The supply / exhaust top 13 can be determined from the graph of FIG. 4A based on the measured instrument internal pressure. In this case, the relationship between the internal pressure of the apparatus and the length of the drainage pipe needs to be obtained in advance through experiments and the like (the relation between the internal pressure of the apparatus when the hot water supply fan 21 rotates and the length of the drainage pipe). In addition, the relationship between the length of the exhaust pipe and the bend is determined by assuming that the exhaust resistance per bend is equivalent to n straight pipes of the exhaust pipe (the same relationship as in the first embodiment is obtained). In this example, one bend is described as exhaust resistance equivalent to a 3.5 m straight pipe.
[0044]
For example, assuming a maximum extension length of 7 m3 bend, the drainage length equivalent to a straight pipe is 17.5 m. From the above, for example, if the length of the discharge pipe is 4 m2, the pipe length is 11 m corresponding to a straight pipe. At this time, when the pressure measured as the internal pressure of the device is measured to be -17.5 mmH2O, it can be determined that the supply / exhaust top 13 is the top A. Further, from FIG. 4B, it is understood that the setting of the exhaust damper 15 in this case is C. As a result, appropriate setting of the exhaust damper 15 can be performed. Therefore, the state of the air supply / exhaust top can be extremely easily determined by the pressure, and in replacement installation of the apparatus body, etc., it is possible to ensure an appropriate combustion state while simplifying the installation work. Combustion in heating and heating is controlled by appropriate exhaust resistance, so that combustion in hot water supply and heating becomes appropriate combustion, causing carbon monoxide to be emitted due to insufficient air volume, causing abnormal noise, and excessive air volume causing hot water supply. Alternatively, the cause of the blowout on the heating side can be solved.
[0045]
(Example 6)
Next, a combustion apparatus according to a sixth embodiment of the present invention will be described with reference to FIGS. Since the basic configuration is the same as that of the first embodiment, only the differences will be described.
[0046]
In the present embodiment, as shown in the figure, the pressure inside the combustion device is measured by the measuring device 32 in a state where the front of the combustion device is closed by the closing member 31. This is applied when the length of the supply / exhaust pipes 1 and 14 can be determined at the actual installation site, but there are several types of the supply / exhaust tops 13 and the determination cannot be made. Alternatively, the length of the supply / exhaust pipes 1 and 14 is set to approximately the length, and after the type of the supply / exhaust top 13 is determined, the lengths of the supply / exhaust pipes are measured again by the method of the first to fourth embodiments. There is also a way to do it.
[0047]
In this embodiment, the heating switch 26 is turned on with the heat source unit gas main plug 25 closed. By the above operation, the combustion operation is started without supplying the gas. However, since there is no gas, the combustion is not performed, the combustion is not detected, and the device stops. If combustion is not detected, an initial ignition error occurs, and the purge state causes the heating fan 8 to rotate for several seconds to enter the purge state. In this state, the supply / exhaust top 13 can be determined from the internal pressure of the apparatus when the heating fan 8 is rotating.
[0048]
Similarly to the fifth embodiment, the supply / exhaust top 13 can be determined from the graph shown in FIG. In this case, the relationship between the internal pressure of the apparatus and the length of the exhaust pipe needs to be obtained in advance through experiments or the like (the relationship between the pressure inside the apparatus and the length of the exhaust pipe when the heating fan 8 rotates). The relationship between the length of the exhaust pipe and the bend is determined by assuming that the exhaust resistance per bend is equivalent to n straight pipes of the exhaust pipe (the same relationship as in the first embodiment is obtained). As a result, the state of the air supply / exhaust top can be determined very easily by pressure, and in replacement installation of the apparatus body, etc., it is possible to simplify the installation work and, of course, ensure an appropriate combustion state. In hot water supply and heating combustion, due to appropriate exhaust resistance, hot water supply and heating combustion become appropriate combustion, carbon monoxide is emitted due to insufficient air volume, abnormal noise is generated, or hot water is supplied due to excessive air volume. The cause of the blowout on the side or the heating side can be solved.
[0049]
Further, since the operation by the heating switch 8 does not require the hot water tap 30 to be opened and water to flow, there is no need to discard water and wasteful water can be prevented from being discharged.
[0050]
(Example 7)
Next, a combustion apparatus according to a seventh embodiment of the present invention will be described with reference to FIGS. Since the basic configuration is the same as that of the first embodiment, only the differences will be described.
[0051]
In the present embodiment, as shown in the figure, the pressure inside the combustion device is measured by the measuring device 32 in a state where the front of the combustion device is closed by the closing member 31. This is applied when the length of the supply / exhaust pipes 1 and 14 can be determined at the actual installation site, but there are several types of the supply / exhaust tops 13 and the determination cannot be made. Alternatively, the length of the supply / exhaust pipes 1 and 14 is set to approximately the length, and after the type of the supply / exhaust top 13 is determined, the lengths of the supply / exhaust pipes are measured again by the method of the first to fourth embodiments. There is also a way to do it.
[0052]
In the present embodiment, when the switch 27 of the control unit 24 is pressed, the hot water supply fan 21 rotates. In this state, the pressure inside the device when the hot water supply fan 21 is rotating is measured by the measuring device 32. Based on the measured internal pressure, the supply / exhaust top 13 can be determined from the graph of FIG. As a result, the state of the air supply / exhaust top can be determined very easily by pressure, and in replacement installation of the apparatus body, etc., it is possible to simplify the installation work and, of course, ensure an appropriate combustion state. In hot water supply and heating combustion, due to appropriate exhaust resistance, hot water supply and heating combustion become appropriate combustion, carbon monoxide is emitted due to insufficient air volume, abnormal noise is generated, or hot water is supplied due to excessive air volume. The cause of the blowout on the side or the heating side can be solved.
[0053]
In addition, since there is no need to open the hot-water tap 30 and allow water to flow because of the operation of the switch 27 of the control unit 24, there is no need to discard water and wasteful water can be prevented from being discharged. Further, the operation is only required to press the switch 27 of the control unit 24, and there is no need to perform complicated operations such as closing the gas source plug 25 of the heat source unit and opening the hot water tap 30, so that the operation can be simplified and time can be reduced. It will be shortened.
[0054]
(Example 8)
Next, a combustion apparatus according to an eighth embodiment of the present invention will be described with reference to FIGS.
[0055]
In the present embodiment, the determination of the supply / exhaust top 13 is performed using the heating operation, and the method is the same as in the seventh embodiment.
[0056]
In this embodiment, pressing the switch 27 of the control unit 24 causes the heating fan 8 to rotate. By the above operation, the heating fan 8 is rotated for several seconds, and in this state, the supply / exhaust top 13 can be determined from the internal pressure when the heating fan 8 is rotating. Also in this case, the supply / exhaust top 13 can be determined from the same graph of the internal pressure of the apparatus and the length of the exhaust pipe as in the sixth embodiment. As a result, the state of the air supply / exhaust top can be determined very easily by pressure, and in replacement installation of the apparatus body, etc., it is possible to simplify the installation work and, of course, ensure an appropriate combustion state. In hot water supply and heating combustion, due to appropriate exhaust resistance, hot water supply and heating combustion become appropriate combustion, carbon monoxide is emitted due to insufficient air volume, abnormal noise is generated, or hot water is supplied due to excessive air volume. The cause of the blowout on the side or the heating side can be solved.
[0057]
Also in this embodiment, it is only necessary to press the switch 27 of the control unit 24, and there is no need to perform a complicated operation such as closing the gas source plug 25 of the heat source unit, so that the operation can be simplified and the time can be reduced. In addition, there is no need to perform a complicated operation such as closing the gas source plug 25 of the heat source device, so that the operation can be simplified and the time can be reduced.
[0058]
Each of the above-described embodiments can be appropriately combined and configured, and is not limited to the embodiments themselves.
[0059]
【The invention's effect】
As described above, according to the combustion apparatus of the present invention, the supply / exhaust gas is supplied or exhausted by the pressure detected at the secondary gas pressure detection hole for hot water supply / heating when the combustion air is supplied in a non-combustion state or the internal pressure of the apparatus. It is designed to determine the state of the pipe and the top of the supply and exhaust, and it is very easy to determine the state of the supply and exhaust pipe and the top of the supply and exhaust by pressure. An appropriate combustion state can be ensured while simplifying.
[0060]
Therefore, in hot water supply and heating combustion, due to appropriate exhaust resistance, insufficient amount of air may emit carbon monoxide, cause abnormal noise, or excess air may cause blow-off on the hot water supply side or heating side. Can be solved.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a combustion device according to embodiments 1 to 4 of the present invention.
FIG. 2A is a diagram showing a relationship between a secondary gas pressure detection hole pressure on the hot water supply side and a pipe length in the combustion apparatus.
(B) A diagram showing a secondary gas pressure detection hole pressure and a damper setting on the hot water supply side in the combustion device.
FIG. 3 is a diagram showing pressure measurement of a combustion device in Examples 5 to 8 of the present invention.
FIG. 4 is a diagram showing a relationship between a pressure in the apparatus and a pipe length in the combustion apparatus.
[Explanation of symbols]
1 air supply pipe
3 heating heat exchanger
5. Heating and combustion equipment
6. Heating fuel supply device
7 Heating pump
8 Heating fan
9 Heating gas proportional valve
10. Heating secondary gas pressure detection hole
11. Heating gas valve
12 Gas pipe
13 Supply / Exhaust Top
14 Exhaust pipe
15 Exhaust damper
16 Hot water supply heat exchanger
17 Hot water supply combustion device
18 Hot water supply fuel supply device
19 Secondary gas pressure detection hole for hot water supply
20 Hot water supply gas proportional valve
21 Hot water supply fan
22 Hot water supply sensor
23 Hot water supply gas valve
24 control unit
25 Heat source gas tap
26 Heating switch
27 switch
28, 29, 32 Measuring instrument
30 hot water tap
31 Closure member

Claims

A hot water supply fuel supply device that branches off from a gas pipe having a gas source plug that forcibly stops fuel supply and supplies fuel to a hot water combustion device via a hot water gas proportional valve, and supplies combustion air to the hot water supply combustion device A hot water supply fan, a hot water supply secondary gas pressure detection hole for confirming the gas amount adjusted by the hot water supply gas proportional valve, a hot water supply amount sensor for confirming water flow to the hot water supply heat exchanger, and a heating gas branched from the gas pipe. A heating fuel supply device for supplying fuel to the heating combustion device via a proportional valve, a heating fan for supplying combustion air to the heating combustion device, and heating 2 for confirming the gas amount adjusted by the heating gas proportional valve A secondary gas pressure detection hole, a heating pump driven by turning on a heating switch to circulate heating water through a heating heat exchanger, an air supply pipe for taking in combustion air, an exhaust pipe for discharging combustion gas, and air supply Hot water supply and heating when the combustion air is supplied in a non-combustion state, comprising a supply / exhaust top provided at the end of the exhaust pipe, an exhaust damper for adjusting the exhaust resistance of the combustion gas, and a control unit for controlling the combustion. A combustion device that determines the state of the supply / exhaust pipe and the supply / exhaust top based on the pressure detected by the secondary gas pressure detection hole or the internal pressure of the device.

When the hot water tap is opened with the gas source plug of the heat source unit closed, the length of the supply / exhaust pipe is determined based on the pressure detected at the secondary gas pressure detection hole when the hot water supply fan rotates in the non-ignition state. The combustion device according to claim 1.

The heating switch is turned on with the gas source plug of the heat source unit closed, and the length of the supply / exhaust pipe is determined based on the pressure detected at the heating secondary gas pressure detection hole when the heating fan rotates in the non-ignition state. The combustion device according to claim 1.

A switch is provided in the control unit, and when the switch is pressed, the hot water supply fan rotates in a non-combustion state, and the length of the supply / exhaust pipe is determined from the pressure detected by the secondary gas pressure detection hole at that time. 2. The combustion device according to claim 1, wherein:

A switch is provided in the control unit, and when the switch is pressed, the heating fan rotates in a non-combustion state, and the length of the supply / exhaust pipe is determined from the pressure detected by the heating secondary gas pressure detection hole at that time. 2. The combustion device according to claim 1, wherein:

2. The combustion apparatus according to claim 1, wherein the hot water tap is opened while the gas source plug of the heat source unit is closed, and the supply / exhaust top is determined based on the pressure inside the appliance when the hot water supply fan rotates in a non-ignition state.

2. The combustion apparatus according to claim 1, wherein the heating switch is turned on in a state in which the gas source plug of the heat source unit is closed, and the top of the supply / exhaust air is determined from the pressure inside the appliance when the heating fan rotates in the non-ignition state.

2. The combustion apparatus according to claim 1, wherein a switch is provided in the control unit, and when the switch is pressed, the hot water supply fan rotates in a non-combustion state, and the supply / exhaust top is determined from the internal pressure of the apparatus at that time.

2. The combustion apparatus according to claim 1, wherein a switch is provided in the control unit, and when the switch is pressed, the heating fan rotates in a non-combustion state, and the top of the supply / exhaust air is determined from the internal pressure of the apparatus at that time.