JPH02267453A - water heater - Google Patents
water heaterInfo
- Publication number
- JPH02267453A JPH02267453A JP1090140A JP9014089A JPH02267453A JP H02267453 A JPH02267453 A JP H02267453A JP 1090140 A JP1090140 A JP 1090140A JP 9014089 A JP9014089 A JP 9014089A JP H02267453 A JPH02267453 A JP H02267453A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- amount
- pid
- water
- burner
- 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
Links
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 産業上の利用分野 本発明は給湯機の給湯装置に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a water supply device for a water heater.
従来の技術
従来の給湯装置は第２図に示すように、バーナ１と、バ
ーナ１より熱せられて通水を温める熱交換器２と、熱交
換器２からの出湯温度を検出するサーミスタ３と、熱交
換器２がらの出湯温度を設定する温度設定手段６と、サ
ーミスタ３がらの出湯温度と温度設定手段６がらの設定
温度の信号を入力し、出湯温度が設定温度になるように
ＰＩＤ演算をし、バーナ１に供給する燃料量を算出する
ＰＩＤ演算手段７と、ＰＩＤ演算手段により算出された
燃料量に基づきバーナ１に供給する燃料量を制御する比
例弁４とを備えたものであった。2. Description of the Related Art As shown in FIG. 2, a conventional hot water supply system includes a burner 1, a heat exchanger 2 that heats water flowing through the burner 1, and a thermistor 3 that detects the temperature of the hot water discharged from the heat exchanger 2. , a temperature setting means 6 for setting the outlet temperature of the hot water from the heat exchanger 2, a signal of the outlet temperature of the thermistor 3 and a set temperature of the temperature setting means 6, and PID calculation is performed so that the outlet temperature of the hot water becomes the set temperature. and a proportional valve 4 that controls the amount of fuel supplied to the burner 1 based on the amount of fuel calculated by the PID calculation means. Ta.
発明が解決しようとする課題
しかし、温度設定手段６の設定温度と熱交換器２への通
水量により最適となるＰＩＤ定数が違うのであるが、従
来の構成ではＰＩＤ定数は一定で変わらないので、設定
温度が低く水量が多い崩で最適となるＰｆＤ定数を選ぶ
と、設定温度が高く水量の少ない所では応答が鋭くなり
すぎるし、また設定温度が高く水量の少ない所で最適と
なるＰＩＤ定数を選ぶと、設定温度が低い所では応答が
鈍くなりすぎるという課題があった。Problems to be Solved by the Invention However, the optimum PID constant differs depending on the set temperature of the temperature setting means 6 and the amount of water flowing through the heat exchanger 2. However, in the conventional configuration, the PID constant is constant and does not change. If you choose the optimal PfD constant for a low set temperature and a large amount of water, the response will be too sharp for a place where the set temperature is high and a small amount of water. However, there was a problem with the response being too slow in places where the set temperature was low.
本発明は上記課題を解消するために、設定温度と水量に
応じて最適な出湯温度制御を行うことを目的とする。In order to solve the above-mentioned problems, the present invention aims to perform optimum hot water temperature control according to the set temperature and water amount.
課題を解決するための手段
上記課題を解決するために本発明の給湯装置はバーナと
、バーナにより熱せられて通水を温める熱交換器と、熱
交換器からの出湯温度を検出するサーミスタと、熱交換
器への通水量を検出する水量センサと、熱交換器からの
出湯温度を設定する温度設定手段と、温度設定手段から
の設定温度と水量センサの検出する水量に基づきＰＩＤ
演算する際の定数を決定するＰＩＤ定数決定手段と、前
記サーミスタからの出湯温度と温度設定手段からの設定
温度の信号を入力し、ＰＩＤ定数決定手段により決定し
たＰＩＤ定数を用いて出湯温度が設定温度になるように
ＰＩＤ演算をし、バーナに供給する燃料量を算出するＰ
ＩＤ演算手段と、前記ＰＩＤ演算手段により算出された
燃料量の信号に基づきバーナに供給する燃料量を制御す
る比例弁とを備えたものである。Means for Solving the Problems In order to solve the above problems, the water heater of the present invention includes a burner, a heat exchanger that is heated by the burner to warm water flowing through it, and a thermistor that detects the temperature of hot water discharged from the heat exchanger. A water flow sensor that detects the flow of water to the heat exchanger, a temperature setting means that sets the temperature of hot water coming out of the heat exchanger, and a PID based on the set temperature from the temperature setting means and the water flow detected by the water flow sensor.
A PID constant determining means for determining a constant for calculation, and a signal of the hot water output temperature from the thermistor and a set temperature from the temperature setting means are input, and the hot water temperature is set using the PID constant determined by the PID constant determining means. PID calculates the amount of fuel to be supplied to the burner by calculating the PID so that the temperature is the same.
It is equipped with an ID calculation means and a proportional valve that controls the amount of fuel supplied to the burner based on the signal of the fuel amount calculated by the PID calculation means.
作用
本発明は上記した構成により、温度設定手段からの設定
温度と水量センサの検出する水量に基づきＰＩＤ定数決
定手段により現在の設定温度に最適のＰＩＤ定数を決定
し、そのＰＩＤ定数を用いてＰＩＤ演算手段によって、
サーミスタからの出湯温度と温度設定手段からの設定温
度より出湯温度が設定温度になるようにＰＩＤ演算をし
、バーナに供給する燃料量を算出し、その燃料量に基づ
き比例弁によってバーナに供給する燃料量を制御ＴＪす
ることにより、現在の設定温度と水量に応じて最適な出
湯温度制御を行う。Effect of the present invention With the above-described configuration, the PID constant determining means determines the optimum PID constant for the current set temperature based on the set temperature from the temperature setting means and the amount of water detected by the water amount sensor, and the PID constant is determined using the PID constant. By means of calculation,
PID calculation is performed so that the hot water temperature from the thermistor and the set temperature from the temperature setting means is the set temperature, the amount of fuel to be supplied to the burner is calculated, and the amount of fuel is supplied to the burner by the proportional valve based on the fuel amount. By controlling the amount of fuel TJ, optimal hot water temperature control is performed according to the current set temperature and water amount.
実施例
本発明の実施例を図面に基づき説明する。第１図は本発
明の一実施例であるシステム構成図で、１はバーナ、２
はバーナ１により熱せられて通水を温める熱交換器、３
は熱交換器２から出湯温度を検出するサーミスタ、８は
熱交換器への通水量を検出する水量センサ、５は温度設
定手段６からの設定温度と水量センサ８の検出する水量
に基づきＰＩＤ演算する際の定数を決定するＰＩＤ定数
決定手段、６は熱交換器２からの出湯温度を設定する温
度設定手段、７はサーミスタ３からの出湯温度の信号と
温度設定手段６からの設定温度の信号を入力し、ＰＩＤ
定数決定手段５により決定したＰＩＤ定数を用いて出湯
温度が設定温度になるようにＰＩＤ演算をし、バーナ１
に供給する燃料量を算出するＰＩＤ演算手段、４はＰＩ
Ｄ演算手段７により算出された燃料量に基づきバーナ１
に供給する燃料量を制御する比例弁である。Embodiment An embodiment of the present invention will be described based on the drawings. FIG. 1 is a system configuration diagram that is an embodiment of the present invention, in which 1 is a burner, 2
is a heat exchanger that is heated by burner 1 to warm the flowing water; 3;
8 is a water flow sensor that detects the amount of water flowing into the heat exchanger; 5 is a PID calculation based on the set temperature from the temperature setting means 6 and the amount of water detected by the water flow sensor 8; 6 is a temperature setting means for setting the temperature of hot water discharged from the heat exchanger 2; 7 is a signal of the temperature of hot water discharged from the thermistor 3 and a signal of the set temperature from the temperature setting means 6; and enter PID
PID calculation is performed using the PID constant determined by the constant determining means 5 so that the hot water temperature reaches the set temperature, and the burner 1 is
PID calculation means for calculating the amount of fuel to be supplied to the
Burner 1 based on the fuel amount calculated by D calculation means 7
This is a proportional valve that controls the amount of fuel supplied to the
ＰＩＤ演算手段７において行われるＰＩＤ演算は、バー
ナ１に供給する燃料量をＴＣとすると、ＴＣ−Ｋｃ ・
（ＴＥＲ＋Ｔｉ ＨΣＴＥＲ十Ｔｄ・ΔＴＥＲ）
で表わされ、ＴＥＲは偏差であり、サーミスタ３による
出湯温度をＴＨ，温度設定手段６による設定温度をＶＲ
とすると、
ＴＥＲ−ＶＲ−ＴＨ
で与えられる。また、Ｋｃが比例定数、Ｔｉが積分定数
、Ｔｄが微分定数であり、３つを総称してＰＩＤ定数と
いう。The PID calculation performed in the PID calculation means 7 is calculated as TC-Kc, where TC is the amount of fuel supplied to the burner 1.
It is expressed as (TER+TiHΣTER×Td・ΔTER), where TER is the deviation, TH is the outlet temperature by the thermistor 3, and VR is the set temperature by the temperature setting means 6.
Then, it is given by TER-VR-TH. Further, Kc is a proportional constant, Ti is an integral constant, and Td is a differential constant, and these three are collectively called a PID constant.
つぎに、動作について説明すると、温度設定手段６から
の設定温度と水量センサ８の検出する水量に基づきＰＩ
Ｄ定数決定手段５により現在の設定温度に最適のＰＩＤ
定数（Ｋｃ、Ｔｉ、Ｔｄ）を決定し、そのＰＩＤ定数を
用いてＰＩＤ演算手段によって、サーミスタ３からの出
湯温度と温度設定手段６からの設定温度より、出湯温度
が設定温度になれるようにＰＩＤ演算をし、バーナ１に
供給する燃料量を算出し、その燃料量に基づき比例弁４
によってバーナ１に供給する燃料量を制御する。Next, to explain the operation, based on the set temperature from the temperature setting means 6 and the water amount detected by the water amount sensor 8, the PI
The optimum PID for the current set temperature is determined by the D constant determining means 5.
Constants (Kc, Ti, Td) are determined, and the PID calculation means uses the PID constants to calculate the PID so that the hot water temperature from the thermistor 3 and the set temperature from the temperature setting means 6 can be set. The amount of fuel to be supplied to burner 1 is calculated, and proportional valve 4 is activated based on the amount of fuel.
The amount of fuel supplied to the burner 1 is controlled by.
発明の効果
以上の本発明によれば、設定温度手段からの設定温度と
水量センサの検出する水量に基づき、ＰＩＤ定数決定手
段によって現在の設定温度と水量に最適なＰＩＤ定数が
決定されるよう構成したものであるから、いかなる設定
温度と水量においても最適な出湯温度制御を行うことが
できるという効果を有する。Effects of the Invention According to the present invention, the PID constant determining means determines a PID constant that is optimal for the current set temperature and water amount based on the set temperature from the set temperature means and the water amount detected by the water amount sensor. Therefore, it has the effect that optimum hot water temperature control can be performed at any set temperature and water amount.
第１図は本発明の給湯装置の一実施例を示すシステム構
成図、第２図は従来技術の一実施例を示すシステム構成
図である。
１・・・・・・バーナ、２・・・・・・熱交換器、３・
・・・・・サーミスタ、４・・・・・・比例弁、５・・
・・・・ＰＩＤ定数決定手段、６・・・・・・温度設定
手段、７・・・・・・ＰＩＤ演算手段、８・・・・・・
水量センサ。FIG. 1 is a system configuration diagram showing an embodiment of the water heater of the present invention, and FIG. 2 is a system configuration diagram showing an embodiment of the conventional technology. 1...Burner, 2...Heat exchanger, 3.
...Thermistor, 4...Proportional valve, 5...
...PID constant determining means, 6...Temperature setting means, 7...PID calculation means, 8...
Water sensor.
Claims (1)
交換器と、熱交換器からの出湯温度を検出するサーミス
タと、熱交換器への通水量を検出する水量センサと、熱
交換器からの出湯温度を設定する温度設定手段と、温度
設定手段からの設定温度と前記水量センサの検出する水
量に基づきＰＩＤ演算する際の定数を決定するＰＩＤ定
数決定手段と、前記サーミスタからの出湯温度の信号と
温度設定手段からの設定温度の信号を入力し、ＰＩＤ定
数決定手段により決定したＰＩＤ定数を用いて出湯温度
が設定温度になるようにＰＩＤ演算をし、バーナに供給
する燃料量を算出するＰＩＤ演算手段と、前記ＰＩＤ演
算手段により算出された燃料量の信号に基づきバーナに
供給する燃料量を制御する比例弁とを備えた給湯装置。a burner, a heat exchanger that is heated by the burner to warm water flowing through it, a thermistor that detects the temperature of hot water coming out of the heat exchanger, a water flow sensor that detects the amount of water flowing to the heat exchanger, and a A temperature setting means for setting a hot water outlet temperature, a PID constant determining means for determining a constant for PID calculation based on the set temperature from the temperature setting means and the water amount detected by the water flow sensor, and a signal of the hot water outlet temperature from the thermistor. and a set temperature signal from the temperature setting means, and performs PID calculation using the PID constant determined by the PID constant determining means so that the outlet temperature becomes the set temperature, and calculates the amount of fuel to be supplied to the burner. A water heater comprising a calculation means and a proportional valve that controls the amount of fuel supplied to the burner based on the fuel amount signal calculated by the PID calculation means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1090140A JPH02267453A (en) | 1989-04-10 | 1989-04-10 | water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1090140A JPH02267453A (en) | 1989-04-10 | 1989-04-10 | water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02267453A true JPH02267453A (en) | 1990-11-01 |
Family
ID=13990207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1090140A Pending JPH02267453A (en) | 1989-04-10 | 1989-04-10 | water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02267453A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017067371A1 (en) * | 2015-10-23 | 2017-04-27 | 深圳市纬度节能服务有限公司 | Multi-dimensional sensing detection circuit |
| CN109114664A (en) * | 2018-08-22 | 2019-01-01 | 能拓能源股份有限公司 | A kind of big data accumulation of heat heating control method and system based on autonomous learning |
| CN119374249A (en) * | 2024-12-30 | 2025-01-28 | 广东万家乐燃气具有限公司 | Water supply control method and control system for water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61295457A (en) * | 1985-06-21 | 1986-12-26 | Omron Tateisi Electronics Co | Combustion control unit of hot water supplier |
| JPS6270904A (en) * | 1985-09-24 | 1987-04-01 | Nissei Plastics Ind Co | Temperature control method |
| JPS62142953A (en) * | 1985-12-17 | 1987-06-26 | Matsushita Electric Ind Co Ltd | Hot water supplier |
-
1989
- 1989-04-10 JP JP1090140A patent/JPH02267453A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61295457A (en) * | 1985-06-21 | 1986-12-26 | Omron Tateisi Electronics Co | Combustion control unit of hot water supplier |
| JPS6270904A (en) * | 1985-09-24 | 1987-04-01 | Nissei Plastics Ind Co | Temperature control method |
| JPS62142953A (en) * | 1985-12-17 | 1987-06-26 | Matsushita Electric Ind Co Ltd | Hot water supplier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017067371A1 (en) * | 2015-10-23 | 2017-04-27 | 深圳市纬度节能服务有限公司 | Multi-dimensional sensing detection circuit |
| CN109114664A (en) * | 2018-08-22 | 2019-01-01 | 能拓能源股份有限公司 | A kind of big data accumulation of heat heating control method and system based on autonomous learning |
| CN119374249A (en) * | 2024-12-30 | 2025-01-28 | 广东万家乐燃气具有限公司 | Water supply control method and control system for water heater |
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