JPH09112899A - Hot water feeder - Google Patents
Hot water feederInfo
- Publication number
- JPH09112899A JPH09112899A JP7268195A JP26819595A JPH09112899A JP H09112899 A JPH09112899 A JP H09112899A JP 7268195 A JP7268195 A JP 7268195A JP 26819595 A JP26819595 A JP 26819595A JP H09112899 A JPH09112899 A JP H09112899A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- burner
- combustion
- output value
- water
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000002485 combustion reaction Methods 0.000 claims abstract description 45
- 238000001514 detection method Methods 0.000 claims description 9
- 239000008236 heating water Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、燃焼用空気のファ
ンの出力が低下した場合の安全性を改良した給湯器に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater with improved safety when the output of a combustion air fan is reduced.
【０００２】[0002]
【従来の技術】従来のこの種の給湯器は図２に示すよう
な構成になっていた。2. Description of the Related Art A conventional water heater of this type has a configuration as shown in FIG.
【０００３】水は水入口より入水温度センサ１、水量セ
ンサ２を通り、熱交換器３で熱を吸収し、出湯温度セン
サ４を通り、出口より湯が放出される。ガスは入口より
ガス元電磁弁５、ガス比例弁６を通り、ファン８から送
られる燃焼用空気と共に、バーナ７で燃焼する。Water passes through a water inlet temperature sensor 1 and a water amount sensor 2 from a water inlet, absorbs heat in a heat exchanger 3, passes through a hot water outlet temperature sensor 4, and is discharged from an outlet. The gas passes through the gas source solenoid valve 5 and the gas proportional valve 6 from the inlet, and is burned by the burner 7 together with the combustion air sent from the fan 8.
【０００４】一般的に、給湯器の排気口や給気口が閉塞
されると、バーナ７の燃焼が悪くなり、大変危険であ
る。このような状態を検出する手段として、ファン出力
検出手段１５により、バーナ７の燃焼中にファン８の出
力値を検出し、ファン出力値が一定の値よりも低い場合
には、エラー表示手段１１により外部入力装置１２にエ
ラー表示を出す。Generally, if the exhaust port or the air supply port of the water heater is closed, the combustion of the burner 7 is deteriorated, which is very dangerous. As a means for detecting such a state, the fan output detection means 15 detects the output value of the fan 8 during combustion of the burner 7, and when the fan output value is lower than a certain value, the error display means 11 To display an error display on the external input device 12.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな構成の給湯器においては、燃焼量に応じてファン回
転数が変化するため、エラー表示を判定するしきい値の
設定が困難であり、判定が不正確になるという課題があ
った。However, in the water heater having such a configuration, since the fan rotation speed changes according to the combustion amount, it is difficult to set the threshold value for determining the error display. There was a problem that was inaccurate.
【０００６】[0006]
【課題を解決するための手段】本発明の給湯器において
は、水量センサの信号によりバーナの燃焼が停止し、フ
ァンが一定時間回転した後に、このファンの出力値を検
出するファン出力検出手段と、ファン出力値が一定の値
より低い場合にはエラー表示するエラー表示手段を備え
たものである。In the water heater of the present invention, the fan output detecting means for detecting the output value of the fan after the combustion of the burner is stopped by the signal of the water amount sensor and the fan is rotated for a certain period of time. An error display unit is provided for displaying an error when the fan output value is lower than a certain value.
【０００７】この本発明によれば、給湯器の排気口や給
気口の閉塞状態を検出し、安全性を向上する。According to the present invention, the closed state of the exhaust port or the air supply port of the water heater is detected to improve safety.
【０００８】[0008]
【発明の実施の形態】そして、上記目的を達成するため
に、本発明の請求項１記載の手段は、水通路に設けた運
転状態を検出する水量センサと水を加熱する熱交換器
と、熱交換器を加熱するバーナと、バーナに燃焼用空気
を送るファンと、運転の入切や運転状態を表示できる外
部入力装置と、水量センサの信号によりバーナが燃焼を
停止し、ファンを一定時間回転させた後に、ファンの出
力値を検出するファン出力検出手段と、ファン出力値が
一定の値よりも低い場合には前記外部入力装置にエラー
表示を出すエラー表示手段を備えたものである。In order to achieve the above object, the means according to claim 1 of the present invention comprises a water quantity sensor for detecting an operating condition provided in a water passage, a heat exchanger for heating water, A burner that heats the heat exchanger, a fan that sends combustion air to the burner, an external input device that can display the on / off state of the operation and the operating status, and a burner that stops combustion due to the signal from the water volume sensor After the rotation, the fan output detection means for detecting the output value of the fan and the error display means for displaying an error display on the external input device when the fan output value is lower than a certain value are provided.
【０００９】また、本発明の請求項２記載の手段は、外
部入力装置の運転の切の信号によりバーナが燃焼を停止
し、ファンを一定時間回転させた後に、ファンの出力値
を検出するファン出力検出手段と、ファン出力値が一定
の値よりも低い場合には前記外部入力装置にエラー表示
を出すエラー表示手段を備えたものである。According to a second aspect of the present invention, the burner stops combustion in response to a signal indicating that the external input device has stopped operating, and after the fan has been rotated for a certain period of time, the fan output value is detected. The output detection means and the error display means for displaying an error display on the external input device when the fan output value is lower than a certain value are provided.
【００１０】また、本発明の請求項３記載の手段は、フ
ァン出力値が一定の値よりも低い場合が複数回連続して
発生した場合には外部入力装置にエラー表示を出すエラ
ー表示手段を備えたものである。Further, the means according to claim 3 of the present invention comprises an error display means for displaying an error display on the external input device when the fan output value is lower than a certain value for a plurality of consecutive times. Be prepared.
【００１１】また、本発明の請求項４記載の手段は、バ
ーナの燃焼時間が一定時間経過後に、バーナの燃焼が停
止した場合に、ファンを一定時間回転させた後に、ファ
ンの出力値を検出するファン出力検出手段と、ファン出
力値が一定の値よりも低い場合には外部入力装置にエラ
ー表示を出すエラー表示手段を備えたものである。According to a fourth aspect of the present invention, when the combustion of the burner is stopped after the burner burns for a certain period of time, the fan output value is detected after the fan is rotated for a certain period of time. The fan output detection means and the error display means for displaying an error display on the external input device when the fan output value is lower than a certain value are provided.
【００１２】さらにまた、本発明の請求項５記載の手段
は、バーナの燃焼量が一定量以上の場合に、バーナの燃
焼が停止した場合に、ファンを一定時間回転させた後
に、ファンの出力値を検出するファン出力検出手段と、
ファン出力値が一定の値よりも低い場合には外部入力装
置にエラー表示を出すエラー表示手段を備えたものであ
る。Further, according to a fifth aspect of the present invention, when the combustion amount of the burner is equal to or more than a certain amount and the combustion of the burner is stopped, the fan is rotated for a certain period of time and then the output of the fan is output. Fan output detection means for detecting the value,
When the fan output value is lower than a certain value, an error display means for displaying an error display on the external input device is provided.
【００１３】本発明の請求項１記載の手段により、水量
センサの信号によりバーナが燃焼を停止し、ファンを一
定時間回転させた後にファンの出力値を検出し、ファン
出力値が一定の値よりも低い場合には、外部入力装置に
エラー表示を出すことにより、給湯器の排気口や給気口
の閉塞状態を検出し、安全性の優れた給湯器となる。According to the first aspect of the present invention, the burner stops the combustion in response to the signal from the water amount sensor, the fan output value is detected after the fan is rotated for a predetermined time, and the fan output value is determined from the constant value. When the value is low, an error display is displayed on the external input device to detect a closed state of the exhaust port or the air supply port of the water heater, and the water heater has excellent safety.
【００１４】また、本発明の請求項２記載の手段によ
り、外部入力装置の運転の切の信号によりバーナが燃焼
を停止し、ファンを一定時間回転させた後にファンの出
力値を検出し、ファン出力値が一定の値よりも低い場合
には外部入力装置にエラー表示を出すことにより、給湯
器の排気口や給気口の閉塞状態を検出し、安全性の優れ
た給湯器となる。According to the second aspect of the present invention, the burner stops combustion in response to a signal indicating that the external input device has stopped operating, and the fan output value is detected after rotating the fan for a certain period of time. When the output value is lower than a certain value, an error display is displayed on the external input device to detect the closed state of the exhaust port or the air supply port of the water heater, thereby providing a water heater with excellent safety.
【００１５】また、本発明の請求項３記載の手段によ
り、ファン出力値の測定のばらつきを考慮し、ファン出
力値が一定の値よりも低い場合が複数回連続して発生し
た場合には外部入力装置にエラー表示を出すことによ
り、給湯器の排気口や給気口の閉塞状態を検出し、安全
性、信頼性の優れた給湯器となる。Further, according to the third aspect of the present invention, in consideration of the variation in the measurement of the fan output value, when the fan output value is lower than a certain value continuously occurs a plurality of times, the external By displaying an error display on the input device, the closed state of the exhaust port or the air supply port of the water heater can be detected, and the water heater with excellent safety and reliability can be obtained.
【００１６】また、本発明の請求項４記載の手段によ
り、燃焼時間によるファン出力値の測定のばらつきを考
慮し、バーナの燃焼時間が一定時間経過後に、バーナの
燃焼が停止した場合に、ファンを一定時間回転させた後
にファンの出力値を検出し、ファン出力値が一定の値よ
りも低い場合には外部入力装置にエラー表示を出すこと
により、給湯器の排気口や給気口の閉塞状態を検出し、
安全性、信頼性の優れた給湯器となる。According to the fourth aspect of the present invention, in consideration of the variation of the fan output value measurement depending on the combustion time, when the combustion of the burner is stopped after the lapse of a certain time, the fan burns. The fan output value is detected after rotating for a certain period of time, and if the fan output value is lower than a certain value, an error is displayed on the external input device to block the exhaust port or air supply port of the water heater. Detect the condition,
The water heater has excellent safety and reliability.
【００１７】さらにまた、本発明の請求項５記載の手段
により、燃焼量によるファン出力値の測定のばらつきを
考慮し、バーナの燃焼量が一定量以上の場合に、バーナ
の燃焼が停止した場合に、ファンを一定時間回転させた
後にファンの出力値を検出し、ファン出力値が一定の値
よりも低い場合には外部入力装置にエラー表示を出すこ
とにより、給湯器の排気口や給気口の閉塞状態を検出
し、安全性、信頼性の優れた給湯器となる。Further, according to the means of claim 5 of the present invention, in consideration of the variation in the measurement of the fan output value depending on the combustion amount, when the combustion amount of the burner is a certain amount or more, the combustion of the burner is stopped. In addition, the fan output value is detected after rotating the fan for a certain period of time, and if the fan output value is lower than a certain value, an error message is displayed on the external input device, and Detects the closed state of the mouth, providing a safe and reliable water heater.
【００１８】以下、本発明の実施の形態を図面に基づき
説明する。図１において、水は水入口より入水温度セン
サ１、水量センサ２を通り、熱交換器３で熱を吸収し、
出湯温度センサ４を通り、出口より湯が放出される。ガ
スは入口よりガス元電磁弁５、ガス比例弁６を通り、フ
ァン８から送られる燃焼用空気と共に、バーナ７で燃焼
する。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, water passes from a water inlet through a water temperature sensor 1 and a water amount sensor 2 and absorbs heat in a heat exchanger 3,
Hot water is discharged from the outlet through the hot water temperature sensor 4. The gas passes through the gas source solenoid valve 5 and the gas proportional valve 6 from the inlet, and is burned by the burner 7 together with the combustion air sent from the fan 8.
【００１９】一般的に、給湯器の排気口や給気口が閉塞
されると、バーナ７の燃焼が悪くなる。このような状態
を検出する手段として、ファン出力検出手段９により、
水量センサ２の信号によりバーナ７が燃焼を停止し、フ
ァン８を一定時間回転させた後にファン８の出力値を検
出し、ファン出力値が一定の値よりも低い場合には、エ
ラー表示手段１１により外部入力装置１２にエラー表示
を出す。Generally, when the exhaust port or the air supply port of the water heater is closed, the burner 7 burns poorly. As a means for detecting such a state, the fan output detection means 9
The burner 7 stops combustion by the signal of the water amount sensor 2 and the output value of the fan 8 is detected after rotating the fan 8 for a certain time. When the fan output value is lower than the certain value, the error display means 11 To display an error display on the external input device 12.
【００２０】本発明の請求項２の給湯器では、外部入力
装置１２の運転の切の信号によりバーナ７が燃焼を停止
し、ファン８を一定時間回転させた後にファン８の出力
値を検出し、ファン出力値が一定の値よりも低い場合に
は、エラー表示手段１１により外部入力装置１２にエラ
ー表示を出す。In the water heater according to the second aspect of the present invention, the burner 7 stops the combustion in response to a signal indicating that the external input device 12 has stopped operating, and the output value of the fan 8 is detected after rotating the fan 8 for a certain period of time. If the fan output value is lower than a certain value, the error display means 11 gives an error display to the external input device 12.
【００２１】本発明の請求項３の給湯器では、請求項
１、２の給湯器において、ファン出力値の測定のばらつ
きを考慮し、ファン出力値が一定の値よりも低い場合が
複数回連続して発生した場合には、外部入力装置１２に
エラー表示を出す。In the water heater according to claim 3 of the present invention, in the water heater according to claims 1 and 2, when the fan output value is lower than a certain value, the fan output value is continuously lower than a certain value in consideration of the variation in the measurement of the fan output value. If the error occurs, an error display is displayed on the external input device 12.
【００２２】本発明の請求項４の給湯器では、請求項
１、２の給湯器において、燃焼時間の長さで燃焼室内の
温度が変化することがあり、この影響によるファン出力
値の測定のばらつきを考慮し、バーナ７の燃焼時間が一
定時間経過後に、バーナ７の燃焼が停止した場合に、フ
ァン８を一定時間回転させた後に、ファン８の出力値を
検出し、ファン出力値が一定の値よりも低い場合には、
外部入力装置１２にエラー表示を出す。In the water heater according to claim 4 of the present invention, in the water heater according to claims 1 and 2, the temperature in the combustion chamber may change depending on the length of the combustion time. Considering the variation, if the combustion of the burner 7 is stopped after the burning time of the burner 7 reaches a certain time, the output value of the fan 8 is detected after the fan 8 is rotated for a certain time, and the fan output value becomes constant. Lower than the value of
An error display is displayed on the external input device 12.
【００２３】本発明の請求項５の給湯器では、請求項
１、２の給湯器において、燃焼量の大きさで燃焼室内の
温度が変化することがあり、この影響によるファン出力
値の測定のばらつきを考慮し、バーナ７の燃焼量が一定
量以上の場合に、バーナ７の燃焼が停止した場合に、フ
ァン８を一定時間回転させた後に、ファン８の出力値を
検出し、ファン出力値が一定の値よりも低い場合には、
外部入力装置１２にエラー表示を出す。In the water heater according to claim 5 of the present invention, in the water heater according to claims 1 and 2, the temperature in the combustion chamber may change depending on the magnitude of the combustion amount. Considering the variation, when the combustion amount of the burner 7 is equal to or more than a certain amount, when the combustion of the burner 7 is stopped, the output value of the fan 8 is detected after the fan 8 is rotated for a certain time, and the output value of the fan 8 is detected. Is lower than a certain value,
An error display is displayed on the external input device 12.
【００２４】このような制御手段によれば、燃焼量に応
じてファン回転数が変化するためエラー判定が不正確に
なる燃焼中の判定ではなく、バーナ燃焼の停止後に、フ
ァン回転数を一定にして、エラーを判定することによ
り、給湯器の排気口や給気口の閉塞状態を正確に検出
し、安全性の優れた給湯器となる。According to such a control means, the fan speed changes according to the combustion amount, and therefore the error judgment becomes inaccurate. Instead of the judgment during combustion, the fan speed is kept constant after the burner combustion is stopped. By determining the error, the closed state of the exhaust port or the air supply port of the water heater can be accurately detected, and the water heater with excellent safety can be obtained.
【００２５】また、複数回連続の判定によるファン出力
値の測定のばらつきの考慮、バーナの燃焼時間が一定時
間以上の考慮、バーナの燃焼量が一定量以上の考慮によ
り、エラー表示判定を正確に行い、安全性、信頼性の優
れた給湯器となる。Further, the error display determination can be accurately performed by considering the variation of the fan output value measurement by the determination of a plurality of times in succession, the burner combustion time over a certain time, and the burner combustion amount over a certain amount. It is a safe and reliable hot water heater.
【００２６】[0026]
【発明の効果】以上のように、本発明の給湯器は、バー
ナ燃焼の停止後に、ファン回転数を一定にして、ファン
出力値の測定ばらつきを考慮してエラーを判定すること
により、給湯器の排気口や給気口の閉塞状態を正確に検
出し、安全性、信頼性の優れた給湯器となる。As described above, the water heater according to the present invention determines the error in consideration of the measurement variation of the fan output value while keeping the fan rotation speed constant after the burner combustion is stopped. It accurately detects the blocked state of the exhaust port and air supply port of the water heater, and provides a water heater with excellent safety and reliability.
【図１】本発明の実施の形態における給湯器の構成図FIG. 1 is a configuration diagram of a water heater according to an embodiment of the present invention
【図２】従来の給湯器の構成図FIG. 2 is a configuration diagram of a conventional water heater.
２ 水量センサ ３ 熱交換器 ８ ファン ９ ファン出力検出手段 １０ ファン制御手段 １１ エラー表示手段 １２ 外部入力装置 2 Water amount sensor 3 Heat exchanger 8 Fan 9 Fan output detection means 10 Fan control means 11 Error display means 12 External input device
Claims (5)
センサと水を加熱する熱交換器と、前記熱交換器を加熱
するバーナと、前記バーナに燃焼用空気を送るファン
と、運転の入切や運転状態を表示できる外部入力装置
と、前記水量センサの信号により前記バーナが燃焼を停
止し、前記ファンが一定時間回転した後に、前記ファン
の出力値を検出するファン出力検出手段と、ファン出力
値が一定の値よりも低い場合には前記外部入力装置にエ
ラー表示を出すエラー表示手段を備えた給湯器。1. A water amount sensor for detecting an operating state provided in a water passage, a heat exchanger for heating water, a burner for heating the heat exchanger, a fan for sending combustion air to the burner, An external input device that can display the on / off state and the operating state, the burner stops combustion by the signal of the water amount sensor, and the fan output detection unit that detects the output value of the fan after the fan has rotated for a certain period of time, A water heater provided with error display means for displaying an error display to the external input device when the fan output value is lower than a certain value.
センサと水を加熱する熱交換器と、前記熱交換器を加熱
するバーナと、前記バーナに燃焼用空気を送るファン
と、運転の入切や運転状態を表示できる外部入力装置
と、この外部入力装置の運転の切の信号により前記バー
ナが燃焼を停止し、前記ファンを一定時間回転させた後
に、前記ファンの出力値を検出するファン出力検出手段
と、ファン出力値が一定の値よりも低い場合には前記外
部入力装置にエラー表示を出すエラー表示手段を備えた
給湯器。2. A water amount sensor provided in a water passage for detecting an operating state, a heat exchanger for heating water, a burner for heating the heat exchanger, a fan for sending combustion air to the burner, An external input device capable of displaying the on / off state and the operation state, and the burner stops combustion by a signal indicating that the operation of the external input device is off, and after detecting the output value of the fan after rotating the fan for a certain period of time. A water heater comprising fan output detection means and error display means for displaying an error display on the external input device when the fan output value is lower than a certain value.
が複数回連続して発生する請求項１又は請求項２記載の
給湯器。3. The water heater according to claim 1, wherein a case where the fan output value is lower than a certain value occurs continuously a plurality of times.
バーナの燃焼が停止する請求項１又は請求項２記載の給
湯器。4. A burner burning time after a certain period of time,
The water heater according to claim 1 or 2, wherein combustion of the burner is stopped.
バーナの燃焼が停止する請求項１又は請求項２記載の給
湯器。5. When the combustion amount of the burner is a certain amount or more,
The water heater according to claim 1 or 2, wherein combustion of the burner is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26819595A JP3794043B2 (en) | 1995-10-17 | 1995-10-17 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26819595A JP3794043B2 (en) | 1995-10-17 | 1995-10-17 | Water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09112899A true JPH09112899A (en) | 1997-05-02 |
| JP3794043B2 JP3794043B2 (en) | 2006-07-05 |
Family
ID=17455248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26819595A Expired - Lifetime JP3794043B2 (en) | 1995-10-17 | 1995-10-17 | Water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3794043B2 (en) |
-
1995
- 1995-10-17 JP JP26819595A patent/JP3794043B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3794043B2 (en) | 2006-07-05 |
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