JPH0674921B2 - Combustion control device for bath kettle - Google Patents
Combustion control device for bath kettleInfo
- Publication number
- JPH0674921B2 JPH0674921B2 JP7032684A JP7032684A JPH0674921B2 JP H0674921 B2 JPH0674921 B2 JP H0674921B2 JP 7032684 A JP7032684 A JP 7032684A JP 7032684 A JP7032684 A JP 7032684A JP H0674921 B2 JPH0674921 B2 JP H0674921B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- bath
- temperature
- water temperature
- detection circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time program acting through electrical means, e.g. using time-delay relays
- F23N5/203—Systems for controlling combustion with a time program acting through electrical means, e.g. using time-delay relays using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/18—Measuring temperature feedwater temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Control For Baths (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はガス風呂釜における空焚き検出に関するもので
ある。Description: TECHNICAL FIELD The present invention relates to detection of empty heating in a gas bath kettle.
従来例の構成と問題点 従来のガス風呂釜においては、温度センサによって湯温
を測定し、指定の空焚き温度を比較して、空焚き温度以
上であれば「空焚き」を判定し、風呂釜の燃焼を停止し
ていた。Configuration and problems of conventional example In the conventional gas bath kettle, the temperature of the hot water is measured by a temperature sensor, the specified boiling temperature is compared, and if it is equal to or higher than the empty heating temperature, "boiled" is determined and the bath Burning of the kettle was stopped.
しかしながら上記構成だと、風呂釜設定温度（例えば、
通常は35〜50℃）に対し、空焚き温度は、例えば70℃以
上であり、温度センサの検出する湯温が70℃以上になら
なければ空焚きを判断出来ず、人体にやげどをおおうな
どの不安全動作になったり、風呂釜が異常加熱し耐久性
に影響がでるなどの問題があった。However, with the above configuration, the bath kettle set temperature (for example,
Normally, the temperature is 35 to 50 ° C), but the heating temperature is, for example, 70 ° C or higher. There were problems such as unsafe operation such as covering, and abnormal heating of the bathtub, which affects durability.
発明の目的 本発明は上記従来の欠点を解消するもので、温度センサ
検出温度の所定時間毎の変化率を測定し、基準値と比較
することで空焚き検出を行い、安全性、耐久性の向上を
目的とする。The present invention is to eliminate the above-mentioned conventional drawbacks, by measuring the rate of change of the temperature sensor detection temperature for each predetermined time, by performing a dry heating detection by comparing with a reference value, safety, durability of For the purpose of improvement.
発明の構成 上記目的を達するため、本発明の風呂釜の燃焼制御装置
は、点火シーケンス回路に直流電源を与えることにより
点火及び燃焼を行なうものであり、その直流電源を、温
度センサからの信号で湯温検知回路と、タイマ回路と、
異常検出回路とで制御する構成である。To achieve the above-mentioned object, the combustion control device for a bathtub of the present invention ignites and burns by applying a DC power supply to an ignition sequence circuit. The DC power supply is supplied by a signal from a temperature sensor. A hot water temperature detection circuit, a timer circuit,
The configuration is controlled by the abnormality detection circuit.
上記構成であるので、所定時間毎に湯温とその変化率が
測定でき、基準値と比較する事によって空焚きを検出し
燃焼動作を停止する。With the above configuration, the hot water temperature and its rate of change can be measured at predetermined time intervals, and by comparing it with the reference value, the empty heating is detected and the combustion operation is stopped.
実施例の説明 以下、本発明の一実施例について、図面に基づいて説明
する。Description of Embodiments An embodiment of the present invention will be described below with reference to the drawings.
第１図において、制御器１は湯温調節ボリューム17と湯
量切換スイッチと運転スイッチが内臓されている。In FIG. 1, the controller 1 has a hot water temperature control volume 17, a hot water amount changeover switch, and an operation switch.
運転スイッチ13を入れると、水温が設定温度以下なら点
火動作を開始する。点火はまず閉止バルブ３が開とな
り、パイロットバーナ５に点火され、パイロットバーナ
５が点火したことを確認後、点火バルブ４が開となり、
メーンバーナ６に着火する。熱交換器７はメインバーナ
６により熱せられ、風呂を沸き上げる。そして温度セン
サ２は熱交換器７を介して水温（湯温）を測定する。When the operation switch 13 is turned on, if the water temperature is below the set temperature, the ignition operation is started. For ignition, first, the closing valve 3 is opened, the pilot burner 5 is ignited, and after confirming that the pilot burner 5 is ignited, the ignition valve 4 is opened.
The main burner 6 is ignited. The heat exchanger 7 is heated by the main burner 6 to boil the bath. Then, the temperature sensor 2 measures the water temperature (hot water temperature) via the heat exchanger 7.
次に、第２図において、湯温調節ボリューム11と、湯量
切換スイッチ12と、異常検出回路13とタイマ回路14と湯
温検知回路15と運転スイッチ16とは、制御器１に内臓さ
れている。Next, in FIG. 2, the hot water temperature control volume 11, the hot water amount changeover switch 12, the abnormality detection circuit 13, the timer circuit 14, the hot water temperature detection circuit 15, and the operation switch 16 are incorporated in the controller 1. .
浴槽に合わせ湯量切替スイッチ12をセットし、運転スイ
ッチを入れると、湯温検知回路15は、温度センサ２から
の信号により、湯温を測定する。タイマ回路14は、燃焼
時間を所定時間毎に測定し、所定時間経過信号を発生さ
せる。そして、異常検出回路13は、前記温度検知回路15
の測定した湯温と前記タイマ回路14の所定時間経過信号
とにより所定時間当たりの浴槽湯温を測定し、かつ、そ
の湯温の変化率を計算する。その変化率を所定の基準値
と比較し、基準値以上であれば「空焚き」として判定
し、風呂釜の燃焼を停止させる。When the hot water amount changeover switch 12 is set to the bathtub and the operation switch is turned on, the hot water temperature detection circuit 15 measures the hot water temperature by the signal from the temperature sensor 2. The timer circuit 14 measures the combustion time at every predetermined time and generates a predetermined time elapsed signal. Then, the abnormality detection circuit 13 includes the temperature detection circuit 15
The bath water temperature per predetermined time is measured based on the measured hot water temperature and the predetermined time elapse signal of the timer circuit 14, and the rate of change of the hot water temperature is calculated. The rate of change is compared with a predetermined reference value, and if the rate of change is equal to or higher than the reference value, it is determined as "empty heating" and the combustion of the bathtub is stopped.
発明の効果 このように本発明によれば、燃焼時間を測定するタイマ
回路と浴槽水の湯温を検出する湯温検知回路を備え、タ
イマ回路と湯温検知回路からの信号を受ける異常検知回
路が単位時間当りの浴槽水の湯温の変化率を計算して基
準値と比較し、浴槽水位検知器等が無くても空焚きを検
出できる。As described above, according to the present invention, the abnormality detection circuit that includes the timer circuit that measures the combustion time and the hot water temperature detection circuit that detects the hot water temperature of the bath water, and that receives a signal from the timer circuit and the hot water temperature detection circuit Can calculate the rate of change in the bath water temperature per unit time and compare it with a reference value to detect empty heating without a bath water level detector or the like.
第１図は本発明の一実施例である制御装置の構成図、第
２図は同制御装置のブロック図、第３図は本発明の空焚
き検出動作を示すフローチャートである。 １……制御器、２……温度センサ、９……点火シーケン
ス回路、10……直流電源、11……湯温調節ボリューム、
12……湯量切替スイッチ、13……異常検出回路、14……
タイマ回路、15……湯温検知回路。FIG. 1 is a block diagram of a control device which is an embodiment of the present invention, FIG. 2 is a block diagram of the control device, and FIG. 3 is a flow chart showing an empty heating detection operation of the present invention. 1 ... Controller, 2 ... Temperature sensor, 9 ... Ignition sequence circuit, 10 ... DC power supply, 11 ... Hot water temperature control volume,
12 …… Hot water amount switch, 13 …… Abnormality detection circuit, 14 ……
Timer circuit, 15 ... Hot water temperature detection circuit.
Claims (1)
熱する風呂釜と、前記熱交換器に取付けて浴槽水の湯温
を測定する温度センサと、この温度センサからの信号に
より浴槽水の湯温を検出する湯温検出回路と、燃焼時間
を測定するタイマ回路と、前記湯温検知回路と前記タイ
マ回路とからの信号により単位時間当りの浴槽水の湯温
の変化率を計算し、基準値と比較して空焚きを判断し、
燃焼停止させる異常検知回路とで構成した風呂釜の燃焼
制御装置。1. A bath kettle connected to a bath to circulate and heat bath water with a heat exchanger, a temperature sensor attached to the heat exchanger to measure the temperature of the bath water, and a signal from the temperature sensor. A hot water temperature detection circuit for detecting the hot water temperature of the bath water, a timer circuit for measuring the combustion time, and a change rate of the hot water temperature of the bath water per unit time by signals from the hot water temperature detection circuit and the timer circuit. Calculate and compare with the reference value to judge the empty heating,
Combustion control device for a bath kettle composed of an abnormality detection circuit that stops combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7032684A JPH0674921B2 (en) | 1984-04-09 | 1984-04-09 | Combustion control device for bath kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7032684A JPH0674921B2 (en) | 1984-04-09 | 1984-04-09 | Combustion control device for bath kettle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60213731A JPS60213731A (en) | 1985-10-26 |
| JPH0674921B2 true JPH0674921B2 (en) | 1994-09-21 |
Family
ID=13428205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7032684A Expired - Lifetime JPH0674921B2 (en) | 1984-04-09 | 1984-04-09 | Combustion control device for bath kettle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0674921B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777061A (en) * | 2012-07-30 | 2012-11-14 | 苏州萃智新技术开发有限公司 | Bathing pool and control system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965815B1 (en) | 1987-05-27 | 2005-11-15 | Bilboa Instruments, Inc. | Spa control system |
| US5361215A (en) | 1987-05-27 | 1994-11-01 | Siege Industries, Inc. | Spa control system |
| CN102589119B (en) * | 2011-01-10 | 2014-04-09 | 曾超 | Environment-friendly hot spring bath tub |
-
1984
- 1984-04-09 JP JP7032684A patent/JPH0674921B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777061A (en) * | 2012-07-30 | 2012-11-14 | 苏州萃智新技术开发有限公司 | Bathing pool and control system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60213731A (en) | 1985-10-26 |
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