JP2006329442A - Control device for water heater - Google Patents

Control device for water heater Download PDF

Info

Publication number
JP2006329442A
JP2006329442A JP2005149056A JP2005149056A JP2006329442A JP 2006329442 A JP2006329442 A JP 2006329442A JP 2005149056 A JP2005149056 A JP 2005149056A JP 2005149056 A JP2005149056 A JP 2005149056A JP 2006329442 A JP2006329442 A JP 2006329442A
Authority
JP
Japan
Prior art keywords
flow rate
hot water
pouring
correction
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2005149056A
Other languages
Japanese (ja)
Inventor
Takanori Kamimura
貴則 上村
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2005149056A priority Critical patent/JP2006329442A/en
Publication of JP2006329442A publication Critical patent/JP2006329442A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Control For Baths (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To improve hot water tapping operation by detecting whether the correction of a hot-water supply flow sensor 4 and a hot-water tapping flow sensor 5 is proper or not, and updating the correction. <P>SOLUTION: This control device comprises a flow correction abnormality detecting means 21 as a means for determining whether a flow value after correction by the flow correcting means 19 is proper or not, to determine a flow correction abnormality that flow correction is not properly performed, and to open a hot water tapping solenoid valve 6, when no use of a hot-water tap 16 for a prescribed time is determined after the hot water tapping solenoid valve 6 is closed to keep a hot water tapping standby state by a hot water tapping standby determination means 18. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、家庭用給湯機に関するものである。   The present invention relates to a home water heater.

従来、例えば、ふろ給湯機では、給湯機の入水側の給湯流量センサと、浴槽への湯張り側に設ける注湯流量センサにより読み取る流量差を記憶して補正することにより、浴槽に湯を張る際に、給湯栓を使用したか否かの判断を、給湯流量センサと注湯流量センサの流量差が所定量以上ある場合に、給湯栓使用時の検出を精度よく行うことで、給湯栓使用時に流れる流量を増やすと共に、浴槽に湯を張る際に、給湯栓を使用したか否かの判断により場合によっては浴槽への注湯を待機することで、給湯側の使い勝手をよくしていた（例えば、特許文献１参照）。
特開２００４−３４７１９２号公報 Conventionally, for example, in a hot water heater, hot water is filled in a bathtub by storing and correcting a flow rate difference read by a hot water flow rate sensor on the incoming side of the hot water heater and a pouring flow rate sensor provided on the hot water filling side of the bathtub. When determining whether or not a hot water tap has been used, if the flow rate difference between the hot water flow rate sensor and the pouring flow rate sensor is greater than or equal to a predetermined amount, the hot water tap is used accurately. In addition to increasing the flow rate that sometimes flows, the hot water supply side convenience is improved by waiting for pouring water into the bathtub depending on whether or not a hot water tap has been used when filling the bathtub with hot water ( For example, see Patent Document 1).
JP 2004-347192 A

しかしながら、浴槽に湯を張る際に、給湯栓を使用した場合には浴槽への注湯を待機するため、給湯流量センサと注湯流量センサの補正値を誤って記憶すると、実際には、給湯栓の使用をしていないのに誤検出により給湯栓使用の検出を行い浴槽への注湯を待機してしまい浴槽への湯張りに時間を要するという課題があった。   However, when hot water is used to fill the bathtub, if a hot-water tap is used, it waits for the hot water to be poured into the bathtub. There was a problem that even though the tap was not used, the use of the hot-water tap was detected due to erroneous detection, and pouring into the bathtub was awaited, and it took time to fill the bathtub.

本発明は、上記課題を解決するもので、給湯流量センサと注湯流量センサの補正値を誤って記憶した場合には、給湯流量センサと注湯流量センサの補正を再度行うことで、浴槽への注湯中に注湯を待機してしまい浴槽への湯張りに時間を要さないことを目的とする。   This invention solves the said subject, and when it correct | amends the correction value of a hot_water | molten_metal supply flow sensor and the pouring flow sensor, it correct | amends a hot water flow sensor and a pouring flow sensor again, and it returns to a bathtub. The purpose is to wait for the hot water during the pouring of the water and not take time to fill the bathtub.

前記従来の課題を解決するために、本発明の給湯機の制御装置は、熱交換器に流れる流量を検出する給湯流量センサと、浴槽への注湯回路を開閉する注湯電磁弁と、浴槽への注湯流量を検出する注湯流量センサと、前記給湯流量センサの信号を流量値として検出する給湯流量検出手段と、前記注湯流量センサの信号を流量値として検出する注湯流量検出手段と、前記給湯流量検出手段と注湯流量検出手段の流量値から注湯動作中に給湯栓が使用されたか否かを検出する給湯使用検出手段と、前記給湯使用検出手段が給湯栓の使用を検出したとき前記注湯電磁弁を閉じ給湯栓の使用が終了するまで浴槽への注湯を待機する注湯待機判定手段と、前記給湯流量検出手段と注湯流量検出手段の流量差の補正を行う流量補正手段と、前記注湯待機判定手段により注湯電磁弁を閉じて注湯待機状態に入った後、所定時間内に給湯栓の使用がないと判定した場合は流量補正が適切に行われていない流量補正異常と判断して再度注湯電磁弁を開状態とする流量補正異常検出手段を備えた制御装置としたものである。   In order to solve the above-described conventional problems, a controller for a hot water supply apparatus according to the present invention includes a hot water flow rate sensor that detects a flow rate flowing through a heat exchanger, a hot water solenoid valve that opens and closes a hot water pouring circuit to the bathtub, and a bathtub. A pouring flow sensor for detecting the pouring flow rate to the hot water, a hot water flow detecting means for detecting the signal of the hot water supplying flow sensor as a flow value, and a pouring flow detecting means for detecting the signal of the pouring flow sensor as a flow value Hot water use detecting means for detecting whether or not a hot water tap is used during a pouring operation from the flow rate values of the hot water flow rate detecting means and the pouring flow rate detecting means, and the hot water use detecting means uses the hot water tap. When detected, the pouring solenoid valve is closed to wait for pouring to the bathtub until the use of the hot water tap ends, and the flow rate difference between the hot water flow rate detecting means and the pouring flow rate detecting means is corrected. Flow rate correction means to be performed and the pouring standby determination If it is determined that the hot water tap has not been used within a predetermined time after the hot water solenoid valve is closed by the stage and it is determined that the hot water tap is not used within a predetermined time, it is determined that the flow rate correction has not been performed properly and the flow rate correction is abnormal. The controller is provided with a flow rate correction abnormality detecting means for opening the pouring solenoid valve.

これによって、注湯電磁弁を開けて浴槽に注湯を開始すると、所定時間内に注湯弁を閉じてしまうことを検出すると、給湯流量センサと注湯流量センサの補正値を誤って記憶したと判断し、給湯流量センサと注湯流量センサの流量差により浴槽への湯張り中に給湯栓の使用を検出せずに湯張りを継続することで誤検出により浴槽への湯張りに時間がかかることをなくすこととなる。   As a result, when the pouring solenoid valve is opened and pouring is started in the bathtub, when it is detected that the pouring valve is closed within a predetermined time, the correction values of the hot water flow sensor and the pouring flow sensor are erroneously stored. By detecting the difference between the hot water flow rate sensor and the pouring flow rate sensor, the hot water filling to the bathtub is not detected and the hot water filling is continued without detecting the use of the hot water tap. This will be eliminated.

本発明の給湯機の制御装置は、給湯流量センサと注湯流量センサの補正値を誤って記憶した場合には、給湯流量センサと注湯流量センサの補正を再度行うことで、給湯栓使用の誤検出をなくすことにより、浴槽への注湯中に注湯を待機してしまい浴槽への湯張りに時間要さないことができる。   When the correction values of the hot water flow rate sensor and the pouring flow rate sensor are stored in error, the controller for the hot water heater of the present invention performs correction of the hot water flow rate sensor and the pouring flow rate sensor again, thereby By eliminating the false detection, it is possible to wait for pouring during the pouring of the bathtub, so that no time is required for filling the bathtub.

第１の発明は、熱交換器に流れる流量を検出する給湯流量センサと、浴槽への注湯回路を開閉する注湯電磁弁と、浴槽への注湯流量を検出する注湯流量センサと、前記給湯流量センサの信号を流量値として検出する給湯流量検出手段と、前記注湯流量センサの信号を流量値として検出する注湯流量検出手段と、前記給湯流量検出手段と注湯流量検出手段の流量値から注湯動作中に給湯栓が使用されたか否かを検出する給湯使用検出手段と、前記給湯使用検出手段が給湯栓の使用を検出したとき前記注湯電磁弁を閉じ給湯栓の使用が終了するまで浴槽への注湯を待機する注湯待機判定手段と、前記給湯流量検出手段と注湯流量検出手段の流量差の補正を行う流量補正手段と、前記注湯待機判定手段により注湯電磁弁を閉じて注湯待機状態に入った後、所定時間内に給湯栓の使用がないと判定した場合は流量補正が適切に行われていない流量補正異常と判断して再度注湯電磁弁を開状態とする流量補正異常検出手段を備えた制御装置とすることにより、注湯電磁弁を開けて浴槽に注湯を開始し給湯栓使用を検出して注湯電磁弁を閉じると、所定時間内に注湯弁を開けてしまうことを検出すると、給湯流量センサと注湯流量センサの補正値を誤って記憶したと判断し、給湯流量センサと注湯流量センサの流量差により浴槽への湯張り中に給湯栓の使用を検出せずに湯張りを継続することで誤検出により浴槽への湯張りに時間がかかることをなくすことができる。   1st invention is the hot_water | molten_metal supply flow sensor which detects the flow volume which flows into a heat exchanger, the pouring solenoid valve which opens and closes the pouring circuit to a bathtub, the pouring flow sensor which detects the pouring flow volume to a bathtub, A hot water flow rate detecting means for detecting a signal from the hot water flow rate sensor as a flow value, a pouring flow rate detecting means for detecting a signal from the hot water flow rate sensor as a flow value, and a hot water flow rate detecting means and a pouring flow rate detecting means. Hot water use detection means for detecting whether or not the hot water tap is used during the pouring operation from the flow rate value, and when the hot water use detection means detects the use of the hot water tap, the hot water solenoid valve is closed to use the hot water tap Pouring by a pouring standby judging means for waiting for pouring into the bathtub until the end of the flow, a flow rate correcting means for correcting a flow rate difference between the hot water supply flow rate detecting means and the pouring flow rate detecting means, and the pouring standby judging means. Close the hot water solenoid valve and enter the pouring standby state After that, when it is determined that the hot water tap is not used within a predetermined time, a flow rate correction abnormality detecting means for determining that the flow rate correction is not properly performed and opening the pouring electromagnetic valve again is determined. By opening the pouring solenoid valve and starting pouring into the bathtub, detecting the use of the hot water tap and closing the pouring solenoid valve, the pouring valve will be opened within a predetermined time. If detected, it is determined that the correction values of the hot water flow sensor and the pouring flow sensor are stored in error, and the use of the hot water tap is not detected during filling of the bathtub due to the difference in flow between the hot water flow sensor and the pouring flow sensor. By continuing the hot water filling, it is possible to eliminate the time required for the hot water filling to the bathtub due to erroneous detection.

第２の発明は、流量補正異常検出手段は、注湯待機状態に入った後、流量補正異常と判断して注湯再開を繰り返す回数をカウントする流量補正異常検出カウンタを備えた制御装置とすることにより、注湯電磁弁を開けて浴槽に注湯を開始すると、所定時間内に注湯弁を閉じてしまうことを複数回連続して検出すると、給湯流量センサと注湯流量センサの補正値を誤って記憶したと判断し、給湯流量センサと注湯流量センサの流量差により浴槽への湯張り中に給湯栓の使用を検出せずに湯張りを継続することで誤検出により浴槽への湯張りに時間がかかることをなくすことができる。   According to a second aspect of the present invention, the flow rate correction abnormality detecting means is provided with a flow rate correction abnormality detection counter that counts the number of times of repeating the pouring restart after determining that the flow rate correction is abnormal after entering the pouring standby state. Therefore, when the pouring solenoid valve is opened and pouring is started in the bathtub, it is detected that the pouring valve is closed several times in a predetermined time, and the correction value of the hot water flow sensor and the pouring flow sensor is detected. Is detected in error, and the hot water filling to the bathtub is not detected due to the difference in flow rate between the hot water flow sensor and the pouring flow sensor. It is possible to eliminate the time required for hot water filling.

第３の発明は、流量補正異常検出手段と流量補正異常検出カウンタにより、流量の補正が正しくないと判定した場合には、注湯待機手段に注湯待機させない注湯待機無効判定手段を備えた制御装置とすることにより、注湯電磁弁を開けて浴槽に注湯を開始すると、所定時間内に注湯弁を閉じてしまうことを複数回連続して検出すると、給湯流量センサと注湯流量センサの補正値を誤って記憶したと判断し、給湯流量センサと注湯流量センサの流量差により浴槽への湯張り中に給湯栓の使用を検出しても注湯待機させずに湯張りを継続することで誤検出により浴槽への湯張りに時間がかかることをなくすことができる。   The third aspect of the present invention includes pouring standby invalidity determining means that does not cause the pouring standby means to wait for pouring when the flow rate correction abnormality detecting means and the flow rate correction abnormality detecting counter determine that the correction of the flow rate is not correct. By using the control device to open the pouring solenoid valve and start pouring into the bathtub, it will detect that the pouring valve closes within a predetermined time several times in succession. Even if it is determined that the correction value of the sensor has been stored in error and the use of the hot water tap is detected while filling the bathtub due to the difference in flow rate between the hot water flow sensor and the pouring flow sensor, By continuing, it is possible to eliminate the time required for filling the bathtub due to erroneous detection.

第４の発明は、流量補正異常検出手段と流量補正異常検出カウンタにより、流量の補正が正しくないと判定した場合には、前記給湯流量検出手段と注湯流量検出手段の流量差の補正を行う流量補正異常時補正手段を備えた制御装置とすることにより、注湯電磁弁を開けて浴槽に注湯を開始すると、所定時間内に注湯弁を閉じてしまうことを複数回連続して検出すると、給湯流量センサと注湯流量センサの補正値を誤って記憶したと判断し、給湯流量センサと注湯流量センサの流量差により浴槽への湯張り中に給湯栓の使用を検出しても注湯待機させずに湯張りを継続すると共に、給湯流量センサと注湯流量センサの補正を再度実施して補正値を更新することで誤検出により浴槽への湯張りに時間がかかることをなくすことができる。   According to a fourth aspect of the present invention, when it is determined by the flow rate correction abnormality detection means and the flow rate correction abnormality detection counter that the flow rate correction is not correct, the flow rate difference between the hot water supply flow rate detection means and the pouring flow rate detection means is corrected. By using a control device equipped with a flow rate correction abnormality correction means, it is detected several times in succession that the pouring valve is closed within a predetermined time when the pouring solenoid valve is opened and pouring is started in the bathtub. Then, it is determined that the correction values of the hot water flow sensor and the pouring flow sensor have been stored in error, and even if the use of the hot water tap is detected during filling of the bathtub due to the difference in flow rate between the hot water flow sensor and the pouring flow sensor. Continues filling without waiting for pouring, and corrects the hot water flow sensor and pouring flow sensor again and updates the correction value to eliminate the time required for filling the bathtub due to false detection. be able to.

第５の発明は、流量補正異常時補正手段は、工場での検査かどうかを判定する工場検査判定手段を備えた制御装置とすることにより、工場の検査時には、上記条件での給湯流量センサと注湯流量センサの補正を実施せずに、常に給湯流量センサと注湯流量センサの補正をおこなうことで、出荷時の流量補正値の信頼性を向上することができる。   According to a fifth aspect of the present invention, the flow rate correction abnormality correction unit is a control device including a factory inspection determination unit that determines whether or not the inspection is performed at the factory. By always correcting the hot water supply flow rate sensor and the pouring flow rate sensor without correcting the hot water flow rate sensor, the reliability of the flow rate correction value at the time of shipment can be improved.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は本発明の実施の形態１における給湯機の構成図、図２は同給湯機の動作を示すフローチャートである。熱源機リモコン１は、熱源機と通信を行い自動湯張り等の操作指示を行う。熱交換器３はバーナ等で加熱され供給される水と熱交換して昇温する。給湯流量センサ４は熱交換器３内を流れる流量を検出する。注湯電磁弁６は熱交換器３で昇温した湯を浴槽７に注湯する際に開放し、注湯流量センサ５で浴槽７内に供給される注湯流量を検出する。前記給湯流量センサ４からの信号を給湯流量検出手段９で流量値として検出する。注湯流量検出手段１０は同様に前記注湯流量センサ５からの信号により流量値として検出する。給湯使用検出手段１１は給湯流量検出手段９と注湯流量検出手段１０で検出された流量値の差により給湯栓１６を使用しているか否かの判断をする。給湯流量所定量判定手段１２は給湯流量検出手段９が検出する給湯流量が所定量以上か否かを判定する。給湯流量安定判定手段１３は給湯流量検出手段９が検出する給湯流量が安定しているか否かを判定する。注湯流量所定量判定手段１４は注湯流量検出手段１０が検出する注湯流量が所定量以上か否かを判定する。注湯流量安定判定手段１５は注湯流量検出手段１０が検出する注湯流量が安定しているか否かを判定する。注湯待機判定手段１８は浴槽７への注湯中に前記給湯使用検出手段１１が給湯栓１６の使用を検出した場合に注湯電磁弁６を閉じて注湯を待機状態とするか否かを判定する。流量補正手段１９は注湯電磁弁６が開いて注湯中に給湯流量検出手段９と注湯流量検出手段１０の流量差を流量補正値として設定する。また、注湯流量検出手段１０は、前記流量補正手段１９からの流量補正値を加減算して注湯流量を補正する。工場検査判定手段２０は流量補正手段１９での給湯流量検出手段９と注湯流量検出手段１０の流量補正方法を工場検査時と市場にて使用される場合で区別する。 (Embodiment 1)
FIG. 1 is a configuration diagram of a water heater in Embodiment 1 of the present invention, and FIG. 2 is a flowchart showing the operation of the water heater. The heat source remote controller 1 communicates with the heat source machine and gives an operation instruction such as automatic hot water filling. The heat exchanger 3 is heated by a burner or the like and heat-exchanged with water supplied to raise the temperature. The hot water flow rate sensor 4 detects the flow rate flowing through the heat exchanger 3. The pouring solenoid valve 6 is opened when pouring hot water heated by the heat exchanger 3 into the bathtub 7, and the pouring flow rate sensor 5 detects the pouring flow rate supplied into the bathtub 7. A signal from the hot water supply flow rate sensor 4 is detected as a flow value by the hot water supply flow rate detection means 9. The pouring flow rate detecting means 10 similarly detects the flow rate value based on the signal from the pouring flow rate sensor 5. The hot water use detection means 11 determines whether or not the hot water tap 16 is being used based on the difference between the flow rate values detected by the hot water flow rate detection means 9 and the pouring flow rate detection means 10. The hot water flow rate predetermined amount determination means 12 determines whether or not the hot water flow rate detected by the hot water flow rate detection means 9 is equal to or greater than a predetermined amount. The hot water flow rate stability determining means 13 determines whether or not the hot water flow rate detected by the hot water flow rate detecting means 9 is stable. The pouring flow rate predetermined amount determination means 14 determines whether or not the pouring flow rate detected by the pouring flow rate detection means 10 is greater than or equal to a predetermined amount. The pouring flow rate stability determining means 15 determines whether or not the pouring flow rate detected by the pouring flow rate detecting means 10 is stable. The pouring standby determination means 18 closes the pouring electromagnetic valve 6 and puts the pouring in a standby state when the hot water use detection means 11 detects the use of the hot water tap 16 during pouring into the bathtub 7. Determine. The flow rate correction means 19 sets the flow rate difference between the hot water supply flow rate detection means 9 and the pouring flow rate detection means 10 as a flow rate correction value during the pouring of the hot water solenoid valve 6. The pouring flow rate detecting means 10 corrects the pouring flow rate by adding or subtracting the flow rate correction value from the flow rate correcting means 19. The factory inspection determination means 20 distinguishes between the hot water supply flow rate detection means 9 in the flow rate correction means 19 and the flow rate correction method of the pouring flow rate detection means 10 depending on whether it is used in the factory inspection or on the market.

流量補正異常検出手段２１は流量補正の異常を検出するもので、熱源機リモコン１の自動湯張りスイッチをオンすると注湯動作が開始される。そして、この注湯動作において注湯電磁弁６を開けると給湯流量検出手段９と注湯流量検出手段１０からの流量差を判断して給湯使用検出手段１１が給湯栓１６の使用を検出すると注湯待機判定判定手段１８により注湯電磁弁６を閉じ注湯動作を待機する。この待機状態において、給湯流量検出手段９と注湯流量検出手段１０による流量が０Ｌ／分となり、給湯使用検出手段１１が給湯栓１６を使用していないと判定した場合（流量補正値に異常がある）には、注湯待機判定手段１８により注湯電磁弁６を開けて注湯を再開する。この一連の動作において、流量補正異常検出手段２１は、注湯電磁弁６を閉じて注湯待機状態に入った後、所定時間内に再度注湯電磁弁６を開けるような場合、つまり給湯栓１６の使用がないと判定した場合は流量補正が適切に行われていないと判断して流量補正異常を検出する。   The flow rate correction abnormality detecting means 21 detects an abnormality of the flow rate correction, and when the automatic hot water filling switch of the heat source machine remote controller 1 is turned on, a pouring operation is started. Then, when the pouring solenoid valve 6 is opened in this pouring operation, the flow rate difference between the hot water flow rate detecting means 9 and the pouring flow rate detecting means 10 is judged, and the hot water use detecting means 11 detects the use of the hot water tap 16. The hot water standby determination determining means 18 closes the hot water solenoid valve 6 and waits for the hot water pouring operation. In this standby state, when the flow rates of the hot water flow rate detection means 9 and the pouring flow rate detection means 10 are 0 L / min and it is determined that the hot water supply use detection means 11 is not using the hot water tap 16 (the flow rate correction value is abnormal). In other words, the pouring electromagnetic valve 6 is opened by the pouring standby determination means 18 to resume pouring. In this series of operations, the flow rate correction abnormality detecting means 21 closes the pouring electromagnetic valve 6 and enters the pouring standby state, and then opens the pouring electromagnetic valve 6 again within a predetermined time, that is, a hot water tap. When it is determined that 16 is not used, it is determined that the flow rate correction is not properly performed, and the flow rate correction abnormality is detected.

流量補正異常検出カウンタ２２は流量補正異常検出手段２１により注湯電磁弁６を閉後、所定時間内に再度注湯電磁弁６を開ける動作を何回行なったかをカウントする。注湯待機無効判定手段２３は流量補正異常検出手段２１により流量補正値が異常であると判断した場合には、給湯流量検出手段９と注湯流量検出手段１０からの流量差を判断して給湯使用検出手段１１が給湯栓１６の使用を検出しても注湯待機判定判定手段１８に注湯電磁弁６を閉じないで注湯を継続させる。流量補正異常時補正手段２４は流量補正異常検出手段２１により流量補正値が異常であると判断した場合には、給湯流量検出手段９と注湯流量検出手段１０から再度補正をやり直す。   The flow rate correction abnormality detection counter 22 counts how many times the operation of opening the pouring electromagnetic valve 6 again is performed within a predetermined time after the pouring electromagnetic valve 6 is closed by the flow rate correction abnormality detecting means 21. When the flow rate correction abnormality detection unit 21 determines that the flow rate correction value is abnormal, the pouring standby invalidity determination unit 23 determines the flow rate difference between the hot water supply flow rate detection unit 9 and the pouring flow rate detection unit 10 and supplies hot water. Even if the use detecting unit 11 detects the use of the hot water tap 16, the pouring standby determination determination unit 18 does not close the pouring electromagnetic valve 6 and continues the pouring. When the flow rate correction abnormality detection unit 21 determines that the flow rate correction value is abnormal, the flow rate correction abnormality correction unit 24 performs correction again from the hot water supply flow rate detection unit 9 and the pouring flow rate detection unit 10.

以上のように構成された給湯機について、以下その動作、作用を説明する。   About the hot water heater comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

まず、本発明の第１の手段の動作について説明すると、熱源機リモコン１の自動スイッチ８をオンすると注湯電磁弁６を開け、浴槽７へ湯張りを開始する。この際の給湯流量検出手段９と注湯流量検出手段１０の流量は、ほぼ同じ流量を検出しているはずである。給湯水量センサ４や注湯水量センサ５のバラツキ等により、給湯流量検出手段９と注湯流量検出手段１０の検出流量に差がある際に、流量補正手段１９は給湯流量検出手段９と注湯流量検出手段１０の流量差を流量補正値として設定する。また、注湯流量検出手段１０は流量補正手段１９からの流量補正値を加減算して注湯流量を算出する。次に、給湯栓１６を使用した際には、給湯流量検出手段９は注湯流量検出手段１０よりも多くなる、この流量差を給湯使用検出手段１１により所定流量以上の差を検出すると、給湯栓１６を使用していると判断し、注湯待機判定手段１８により注湯電磁弁を閉じ注湯動作を待機する。   First, the operation of the first means of the present invention will be described. When the automatic switch 8 of the heat source machine remote controller 1 is turned on, the hot water electromagnetic valve 6 is opened and the hot water filling to the bathtub 7 is started. At this time, the hot water flow rate detection means 9 and the pouring flow rate detection means 10 should have detected substantially the same flow rate. When there is a difference between the detected flow rates of the hot water flow rate detection means 9 and the hot water flow rate detection means 10 due to variations in the hot water supply amount sensor 4 and the poured water amount sensor 5, the flow rate correction means 19 and the hot water flow rate detection means 9 The flow rate difference of the flow rate detection means 10 is set as a flow rate correction value. The pouring flow rate detecting means 10 calculates the pouring flow rate by adding or subtracting the flow rate correction value from the flow rate correcting means 19. Next, when the hot-water tap 16 is used, the hot-water supply flow rate detection means 9 becomes larger than the pouring flow rate detection means 10. When this flow rate difference is detected by the hot-water supply use detection means 11, a difference over a predetermined flow rate is detected. It is determined that the stopper 16 is being used, and the pouring electromagnetic valve is closed by the pouring standby determination means 18 to wait for the pouring operation.

流量補正手段１９の流量補正値が正しくないとき、特に、給湯栓１６の使用していない場合には同じ流量が流れているのに、給湯流量検出手段９は注湯流量検出手段１０よりも多く検出してしまう場合もあり、給湯使用検出手段１１が給湯栓１６を使用していると誤検出してしまい、注湯待機判定手段１８により注湯電磁弁６を閉じてしまう。注湯電磁弁６を閉じると給湯栓１６は閉じているので、給湯流量検出手段９と注湯流量検出手段１０により検出する流量は、０Ｌ／分となる。注湯電磁弁６が閉じて、給湯流量検出手段９による検出流量が０Ｌ／分の場合には、再度、注湯電磁弁６を開けて注湯を再開する。注湯を再開すると、前述したように給湯使用検出手段１１と注湯待機判定手段１８により注湯電磁弁６を閉じるのを繰り返りすことになる。   When the flow rate correction value of the flow rate correction unit 19 is not correct, particularly when the hot water tap 16 is not used, the same flow rate flows, but the hot water supply flow rate detection unit 9 is more than the pouring flow rate detection unit 10. In some cases, the hot water use detection means 11 erroneously detects that the hot water tap 16 is used, and the pouring standby determination means 18 closes the pouring electromagnetic valve 6. When the pouring electromagnetic valve 6 is closed, the hot water tap 16 is closed, and the flow rate detected by the hot water flow rate detecting means 9 and the pouring flow rate detecting means 10 is 0 L / min. When the pouring electromagnetic valve 6 is closed and the detected flow rate by the hot water supply flow rate detecting means 9 is 0 L / min, the pouring electromagnetic valve 6 is opened again and pouring is resumed. When the pouring is resumed, as described above, the hot water use detection means 11 and the pouring standby determination means 18 repeatedly close the pouring electromagnetic valve 6.

流量補正異常検出手段２１は、注湯電磁弁６を閉後にＴ秒以内に注湯電磁弁６を開けるような場合には、流量補正手段１９による給湯流量と注湯流量の補正値が、正しくないと判断する。流量補正値が正しくないと判断した場合には、給湯流量センサ４と注湯流量センサ５の流量差により浴槽７への湯張りを継続する。   When the pouring electromagnetic valve 6 is opened within T seconds after the pouring electromagnetic valve 6 is closed, the flow rate correction abnormality detecting means 21 correctly corrects the hot water supply flow rate and the pouring flow rate correction value by the flow rate correcting means 19. Judge that there is no. When it is determined that the flow rate correction value is not correct, the hot water filling to the bathtub 7 is continued due to the flow rate difference between the hot water supply flow rate sensor 4 and the pouring flow rate sensor 5.

以上のように、流量補正手段１９により給湯流量検出手段９と注湯流量検出手段１０による流量の補正が正しく行なわれなかったことを流量補正異常検出手段２１が判断すると、給湯流量センサ４と注湯流量センサ５の流量差により浴槽７への湯張り中に給湯栓の使用を検出せずに湯張りを継続することで誤検出により浴槽への湯張りに時間がかかることをなくすことができる。   As described above, when the flow rate correction abnormality detection unit 21 determines that the flow rate correction unit 19 did not correct the flow rate by the hot water supply flow rate detection unit 9 and the pouring flow rate detection unit 10, the hot water supply flow rate sensor 4 and the pouring flow rate sensor 4. By continuing the hot water filling without detecting the use of the hot water tap during the hot water filling to the bathtub 7 due to the flow rate difference of the hot water flow sensor 5, it is possible to eliminate the time taken for the hot water filling to the bathtub due to an erroneous detection. .

また第２の手段では、流量補正異常検出手段２１により、注湯電磁弁６を閉後にＴ秒以内に注湯電磁弁６を開けるような場合には、流量補正異常検出カウンタ２２が、流量補正手段１９による給湯流量と注湯流量の補正値が、正しくないと判断した回数をカウントすることで、流量補正異常検出手段２１は、流量補正異常検出カウンタ２２のカウント数がＸ回以上連続した場合に、正確に流量の補正が行なわれなかったことを判断することができる。   In the second means, when the pouring electromagnetic valve 6 is opened within T seconds after the pouring electromagnetic valve 6 is closed by the flow correction abnormality detecting means 21, the flow correction abnormality detecting counter 22 performs the flow correction By counting the number of times that the correction values of the hot water supply flow rate and the pouring flow rate determined by the means 19 are not correct, the flow rate correction abnormality detection means 21 is in the case where the count number of the flow rate correction abnormality detection counter 22 continues X times or more. In addition, it can be determined that the flow rate has not been accurately corrected.

以上のように、流量補正手段１９により給湯流量検出手段９と注湯流量検出手段１０による流量の補正が正しく行なわれなかったことを流量補正異常検出手段２１と流量補正異常検出カウンタ２２により正確に検出することにより、給湯流量センサ４と注湯流量センサ５の流量差により浴槽７への湯張り中に給湯栓の使用を検出せずに湯張りを継続することで誤検出により浴槽７への湯張りに時間がかかることをなくすことができる。   As described above, the correction of the flow rate by the hot water supply flow rate detection unit 9 and the pouring flow rate detection unit 10 by the flow rate correction unit 19 is accurately performed by the flow rate correction abnormality detection unit 21 and the flow rate correction abnormality detection counter 22. By detecting the flow rate difference between the hot water supply flow rate sensor 4 and the pouring flow rate sensor 5, the hot water filling to the bathtub 7 is continued without filling the bathtub 7 without detecting the use of the hot water tap. It is possible to eliminate the time required for hot water filling.

また第３の手段では、流量補正異常検出手段２１が、流量補正手段１９による給湯流量と注湯流量の補正値が、正しくないと判断した場合には、注湯待機無効判定手段２３により給湯流量センサ４と注湯流量センサ５の流量差により浴槽７への湯張り中に給湯栓１６の使用を検出しても注湯待機させずに湯張りを継続することで誤検出により浴槽７への湯張りに時間がかかることをなくすことができる。   In the third means, when the flow rate correction abnormality detecting unit 21 determines that the correction values of the hot water supply flow rate and the pouring flow rate by the flow rate correcting unit 19 are not correct, the hot water supply standby invalidity determining unit 23 performs the hot water supply flow rate determining unit 23. Even if the use of the hot-water tap 16 is detected during the filling of the bathtub 7 due to the difference in flow rate between the sensor 4 and the pouring flow sensor 5, the hot water filling is continued without waiting for the pouring, so that an erroneous detection causes the It is possible to eliminate the time required for hot water filling.

また第４の手段では、流量補正異常検出手段２１が、流量補正手段１９による給湯流量センサ４と注湯流量センサ５の補正値が、正しくないと判断した場合には、給湯流量検出手段９と注湯流量検出手段１０の流量差の補正の更新を流量補正異常時補正手段２４によりおこなう。浴槽７への湯張り時に、注湯電磁弁６を開ける。注湯弁電磁弁６を開後、所定時間経過すると、給湯流量検出手段９と注湯流量検出手段１０により給湯栓の使用があるか否かの検出をおこなう。給湯流量検出手段９と注湯流量検出手段１０の流量差が所定流量以上かつ所定時間以上検出すると給湯栓１６を使用していると判断する。給湯栓１６を使用していると判断した時の給湯流量検出手段９と注湯流量検出手段１０の流量差を一旦記憶しておく。次に流量補正異常検出手段２１により給湯栓１６使用検出後に注湯電磁弁６を閉じてからＴ時間以内に注湯電磁弁６を開けて、再度同様に給湯栓１６を使用していると判断した時の給湯流量検出手段９と注湯流量検出手段１０の流量差を記憶する。流量補正異常検出カウンタ２２によりカウントを繰り返しながら、給湯栓１６を使用していると判断した時の給湯流量検出手段９と注湯流量検出手段１０の流量差を記憶していく。流量補正異常検出カウンタ２２によるカウントが所定回数以上を検出すると、流量補正異常時補正手段２４により記憶しておいた、給湯栓１６を使用していると判断した時の給湯流量検出手段９と注湯流量検出手段１０の流量差の平均を流量補正値として更新することで、給湯流量センサ４と注湯流量センサ５の補正値が、正しくない場合でも、湯張り中に給湯栓１６の使用を検出しても注湯待機させずに湯張りを継続すると共に、給湯流量センサ４と注湯流量センサ５の補正を再度実施して補正値を更新することで誤検出により浴槽７への湯張りに時間がかかることをなくすことができる。   In the fourth means, when the flow rate correction abnormality detecting means 21 determines that the correction values of the hot water supply flow rate sensor 4 and the pouring flow rate sensor 5 by the flow rate correction means 19 are not correct, the hot water supply flow rate detection means 9 and The correction of the flow rate difference of the pouring flow rate detection means 10 is performed by the correction means 24 at the time of abnormal flow correction. When the hot water is filled in the bathtub 7, the hot water solenoid valve 6 is opened. When a predetermined time has elapsed after opening the hot water solenoid valve 6, the hot water flow rate detecting means 9 and the hot water flow rate detecting means 10 detect whether or not the hot water tap is being used. When the flow rate difference between the hot water flow rate detection means 9 and the pouring flow rate detection means 10 is detected at a predetermined flow rate or higher and for a predetermined time or longer, it is determined that the hot water tap 16 is being used. The flow rate difference between the hot water supply flow rate detection means 9 and the pouring flow rate detection means 10 when it is determined that the hot water tap 16 is used is temporarily stored. Next, after detecting the use of the hot water tap 16 by the flow rate correction abnormality detecting means 21, the hot water solenoid valve 6 is opened within T time after the hot water solenoid valve 6 is closed, and it is determined that the hot water tap 16 is used again in the same manner. The flow rate difference between the hot water supply flow rate detection means 9 and the pouring flow rate detection means 10 is stored. The flow rate difference between the hot water supply flow rate detection means 9 and the pouring flow rate detection means 10 when it is determined that the hot water tap 16 is being used is stored while repeating the counting by the flow rate correction abnormality detection counter 22. When the count by the flow rate correction abnormality detection counter 22 detects a predetermined number of times or more, the hot water supply flow rate detection means 9 stored when the flow rate correction abnormality correction means 24 determines that the hot water tap 16 is used is used. By updating the average of the flow rate difference of the hot water flow rate detection means 10 as the flow rate correction value, even if the correction values of the hot water flow rate sensor 4 and the pouring flow rate sensor 5 are not correct, the hot water tap 16 can be used during hot water filling. Even if detected, the hot water filling is continued without waiting for pouring, and correction of the hot water supply flow rate sensor 4 and the hot water flow rate sensor 5 is performed again to update the correction value, so that the hot water filling to the bathtub 7 due to erroneous detection is performed. It is possible to eliminate the time it takes to complete.

また第５の手段では、流量補正異常時補正手段２４に、工場での検査かどうかを判定する工場検査判定手段２０を備えることで、工場での検査であれば、あらかじめ給湯栓１６の使用していないことがわかるため、流量補正異常時補正手段２４による流量の補正をおこなわずに、従来通り給湯流量検出手段９と注湯流量検出手段１０の流量差を流量補正値とする。また注湯流量検出手段１０は、流量補正手段１９からの流量補正値を加減算して注湯流量を算出する。次に給湯栓１６を使用した際には、給湯流量検出手段９は注湯流量検出手段１０よりも多くなる、この流量差を給湯栓１６使用検出手段１１により所定流量以上の差を検出すると、給湯栓１６を使用していると判断し、注湯待機判定手段１８により注湯電磁弁６を閉じ注湯処理を待機する。   Further, in the fifth means, the flow rate correction abnormality correction means 24 is provided with a factory inspection determination means 20 for determining whether or not the inspection is performed at the factory. Therefore, the flow rate difference between the hot water supply flow rate detection unit 9 and the pouring flow rate detection unit 10 is set as a flow rate correction value as usual without performing the flow rate correction by the flow rate correction abnormality correction unit 24. The pouring flow rate detection means 10 calculates the pouring flow rate by adding or subtracting the flow rate correction value from the flow rate correction means 19. Next, when the hot water tap 16 is used, the hot water flow rate detection means 9 is larger than the pouring flow rate detection means 10. When this flow rate difference is detected by the hot water tap 16 use detection means 11, a difference greater than a predetermined flow rate is obtained. It is determined that the hot-water tap 16 is used, and the pouring electromagnetic valve 6 is closed by the pouring standby determination means 18 to wait for the pouring process.

以上のように、本実施の形態においては流量補正手段１９が、給湯流量検出手段９と注湯流量検出手段１０の流量差を流量補正することで出荷時の流量補正値の信頼性を向上することができる。   As described above, in the present embodiment, the flow rate correction unit 19 improves the reliability of the flow rate correction value at the time of shipment by correcting the flow rate difference between the hot water supply flow rate detection unit 9 and the pouring flow rate detection unit 10. be able to.

以上のように、本発明にかかる給湯機の制御装置は、給湯流量センサと注湯流量センサの補正値を誤って記憶した場合には、給湯流量センサと注湯流量センサの補正を再度行うことで、浴槽への注湯中に注湯を待機してしまい浴槽への湯張りに時間要さないことができるので、家庭用給湯機に適用できる。   As described above, when the correction values of the hot water flow sensor and the pouring flow sensor are erroneously stored, the controller for the hot water heater according to the present invention performs correction of the hot water flow sensor and the pouring flow sensor again. Thus, it is possible to wait for the hot water to be poured into the bathtub and not to spend time for filling the bathtub, so that the present invention can be applied to a domestic water heater.

本発明の実施の形態における給湯機の構成図Configuration diagram of a water heater in an embodiment of the present invention 本発明の実施の形態における制御装置のフローチャートThe flowchart of the control apparatus in embodiment of this invention

符号の説明Explanation of symbols

３ 熱交換器
４ 給湯流量センサ
５ 注湯流量センサ
６ 注湯電磁弁
９ 給湯流量検出手段
１０ 注湯流量検出手段
１１ 給湯使用検出手段
１８ 注湯待機判定手段
１９ 流量補正手段
２１ 流量補正異常検出手段 DESCRIPTION OF SYMBOLS 3 Heat exchanger 4 Hot water supply flow sensor 5 Pouring hot water flow sensor 6 Pouring hot water solenoid valve 9 Hot water supply flow rate detection means 10 Pouring hot water flow detection means 11 Hot water supply use detection means 18 Hot water waiting judgment means 19 Flow rate correction means 21 Flow rate correction abnormality detection means

Claims (5)

熱交換器に流れる流量を検出する給湯流量センサと、浴槽への注湯回路を開閉する注湯電磁弁と、浴槽への注湯流量を検出する注湯流量センサと、前記給湯流量センサの信号を流量値として検出する給湯流量検出手段と、前記注湯流量センサの信号を流量値として検出する注湯流量検出手段と、前記給湯流量検出手段と注湯流量検出手段の流量値から注湯動作中に給湯栓が使用されたか否かを検出する給湯使用検出手段と、前記給湯使用検出手段が給湯栓の使用を検出したとき前記注湯電磁弁を閉じ給湯栓の使用が終了するまで浴槽への注湯を待機する注湯待機判定手段と、前記給湯流量検出手段と注湯流量検出手段の流量差の補正を行う流量補正手段と、前記注湯待機判定手段により注湯電磁弁を閉じて注湯待機状態に入った後、所定時間内に給湯栓の使用がないと判定した場合は流量補正が適切に行われていない流量補正異常と判断して再度注湯電磁弁を開状態とする流量補正異常検出手段を備えた給湯機の制御装置。 A hot water flow sensor for detecting the flow rate flowing through the heat exchanger, a hot water solenoid valve for opening and closing a pouring circuit to the bathtub, a hot water flow sensor for detecting the hot water flow rate to the bathtub, and a signal from the hot water flow sensor Hot water flow rate detecting means for detecting a flow rate value of the hot water, a pouring flow rate detecting means for detecting a signal of the pouring flow rate sensor as a flow value, and a pouring operation from the flow rate values of the hot water flow rate detecting means and the pouring flow rate detecting means. Hot water use detection means for detecting whether or not a hot water tap has been used, and when the hot water use detection means detects the use of the hot water tap, the hot water solenoid valve is closed to the bathtub until the use of the hot water tap is completed A pouring standby determination means for waiting for pouring of water, a flow rate correction means for correcting a flow rate difference between the hot water supply flow rate detection means and the pouring flow rate detection means, and a pouring solenoid valve closed by the pouring standby determination means. A predetermined time after entering the pouring standby state If it is determined that the hot water tap is not used, control of the water heater provided with a flow rate correction abnormality detecting means for determining that the flow rate correction is not properly performed and opening the hot water solenoid valve again. apparatus. 流量補正異常検出手段は、注湯待機状態に入った後、流量補正異常と判断して注湯再開を繰り返す回数をカウントする流量補正異常検出カウンタを備えた請求項１記載の給湯機の制御装置。 2. The water heater control device according to claim 1, wherein the flow rate correction abnormality detecting means includes a flow rate correction abnormality detection counter that counts the number of times of resuming pouring restart after judging that the flow rate correction is abnormal after entering the pouring standby state. . 流量補正異常検出手段と流量補正異常検出カウンタにより、流量の補正が正しくないと判定した場合には、注湯待機手段に注湯待機させない注湯待機無効判定手段を備えた請求項２記載の給湯機の制御装置。 The hot water supply according to claim 2, further comprising a pouring standby invalid determining means that does not cause the pouring standby means to wait for pouring when the flow rate correction abnormality detecting means and the flow rate correction abnormality detecting counter determine that the correction of the flow rate is not correct. Machine control device. 流量補正異常検出手段と流量補正異常検出カウンタにより、流量の補正が正しくないと判定した場合には、前記給湯流量検出手段と注湯流量検出手段の流量差の補正を行う流量補正異常時補正手段を備えた請求項３記載の給湯機の制御装置。 When the flow rate correction abnormality detection unit and the flow rate correction abnormality detection counter determine that the flow rate correction is not correct, the flow rate correction abnormality correction unit corrects the flow rate difference between the hot water supply flow rate detection unit and the pouring flow rate detection unit. The control apparatus of the hot water heater of Claim 3 provided with these. 流量補正異常時補正手段は、工場での検査状態か否かを判定する工場検査判定手段を備えた請求項４記載の給湯機の制御装置。 5. The water heater control device according to claim 4, wherein the flow rate correction abnormality correction means includes factory inspection determination means for determining whether or not the inspection state is in a factory.
JP2005149056A 2005-05-23 2005-05-23 Control device for water heater Pending JP2006329442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005149056A JP2006329442A (en) 2005-05-23 2005-05-23 Control device for water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005149056A JP2006329442A (en) 2005-05-23 2005-05-23 Control device for water heater

Publications (1)

Publication Number Publication Date
JP2006329442A true JP2006329442A (en) 2006-12-07

Family

ID=37551316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005149056A Pending JP2006329442A (en) 2005-05-23 2005-05-23 Control device for water heater

Country Status (1)

Country Link
JP (1) JP2006329442A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010060207A (en) * 2008-09-04 2010-03-18 Chofu Seisakusho Co Ltd Water heater
JP2013050220A (en) * 2011-08-30 2013-03-14 Noritz Corp Heat source machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010060207A (en) * 2008-09-04 2010-03-18 Chofu Seisakusho Co Ltd Water heater
JP2013050220A (en) * 2011-08-30 2013-03-14 Noritz Corp Heat source machine

Similar Documents

Publication Publication Date Title
JP5312215B2 (en) Heat recovery system
JP2006329442A (en) Control device for water heater
JP2009287838A (en) Heat pump water heater
JP2016080218A (en) Water heater
JP3683435B2 (en) Hot water storage device
JP2005147576A (en) Controller for water heater
JP2007198683A (en) Control device of bath water heater
JP2010060207A (en) Water heater
JP2005106330A (en) Water heater and its control method
JP2007024410A (en) Water heater
JP5925732B2 (en) Bath water heater
JP3738061B2 (en) Method for detecting water level in automatic bath and automatic bath for carrying out the same
JP6922472B2 (en) Water heater
JP2007024409A (en) Water heater
JP3622189B2 (en) Bathtub temperature detector
JPH06147631A (en) Control method of hot-water filling and hot-water pouring for automatic bath boiler
JP2014199168A (en) Bath hot water supply system
JP2004347192A (en) Control device for water heater
JP2003329304A (en) Hot-water supply unit
JP2001108293A (en) Method of automatically filling bath with hot water
JPH02178561A (en) Hot water feeder
JP3736927B2 (en) Combustion device
JP2001336817A (en) Method for controlling automatic water feeding for bath furnace with water feeding function
JPH109668A (en) Bath and hot water supplying apparatus
JP2007162999A (en) Method and device for priming detection in starting boiler