JPH02169955A - Hot water supplying device - Google Patents
Hot water supplying deviceInfo
- Publication number
- JPH02169955A JPH02169955A JP63324098A JP32409888A JPH02169955A JP H02169955 A JPH02169955 A JP H02169955A JP 63324098 A JP63324098 A JP 63324098A JP 32409888 A JP32409888 A JP 32409888A JP H02169955 A JPH02169955 A JP H02169955A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- pid
- set temperature
- hot water
- fuel
- 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
- Control Of Combustion (AREA)
- Control Of Temperature (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は給湯機等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 heating device such as 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に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か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からの出湯温度と温度設定手段６からの設定
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（比例・積分・微分）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 water heater includes a burner 1, a heat exchanger 2 which is heated by the burner 1 to warm the flowing water, and a thermistor 3 which detects the temperature of hot water discharged from the heat exchanger 2. , the temperature setting means 6 for setting the hot water temperature from the heat exchanger 2, the hot water temperature from the thermistor 3, and the set temperature signal from the temperature setting means 6 are input, and the PID (proportional・PID calculating means 7 which performs integral/differential calculations and calculates the amount of fuel to be supplied to the burner 1; and a proportional valve 4 which controls the amount of fuel to be supplied to the burner 1 based on the amount of fuel calculated by the PID calculating means. It was equipped with the following.
発明が解決しようとする課題
しかし、設定温度により最適となるＰＡＤ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、設定温度が小さい所で最適となるＰＩＤ定数を
選ぶと設定温度が大きい所では応答が鋭くなりずぎるし
、また設定温度が大きい所で最適となるＰＩＤ定数を選
ぶと設定温度が小さ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 optimal PAD constant differs depending on the set temperature.In the conventional configuration, the PID constant is constant and does not change, so if the PID constant that is optimal at a small set temperature is selected. There is a problem that the response becomes too sharp at a high set temperature, and if a PID constant that is optimal at a high set temperature is selected, the response becomes too slow at a low set temperature.
本発明は上記従来の技術の課題を解決するもので、設定
温度に応じたＰＩＤ定数を決定し、いかなる設定温度に
対しても安定した出湯温度制御を行なうようにしたもの
である。The present invention solves the above-mentioned problems of the conventional technology by determining a PID constant according to the set temperature and stably controlling the tapping temperature for any set temperature.
！！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熱源手段
と、この熱源手段により熱せられて通水を温める熱交換
器と、この熱交換器からの出湯温度を検出する温度検出
手段と、前記熱交換器からの出湯温度を設定する温度設
定手段と、この温度設定手段からの設定温度に基づきＰ
ＩＤ演算する際の定数を決定するＰＩＤ定数決定手段と
、前記温度検出手段からの出湯温度と温度設定手段から
の設定温度からの信号を入力し、前記ＰＩＤ定数決定手
段により決定したＰＩＤ演算をし、熱源手段に供給する
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に基づき熱源手段に供給する
燃料量を制御する比例制御手段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 heat source means, a heat exchanger that is heated by the heat source means to warm flowing water, and detects the temperature of hot water discharged from the heat exchanger. temperature detection means for setting the hot water temperature from the heat exchanger; and temperature setting means for setting the hot water temperature from the heat exchanger;
A PID constant determining means for determining a constant for ID calculation, and a signal from the outlet hot water temperature from the temperature detecting means and a set temperature from the temperature setting means are input, and the PID calculation determined by the PID constant determining means is performed. , a PID calculation means for calculating the amount of fuel to be supplied to the heat source means, and a proportional control means for controlling the amount of fuel to be supplied to the heat source means based on the amount of fuel calculated by the PID calculation means.
作用
本発明は上記した構成によケ、温度設定手段からの設定
温度に基づきＰＩＤ定数決定手段により現在の設定温度
最適のＰＩＤ定数を決定し、そのＰＩＤ定数を用いてＰ
ＩＤ演算手段によって、温度検出手段からの出湯温度と
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、熱源手段に供給する燃料量
を真出し、その燃料量に基づき比例制御手段によって熱
源手段に供給する燃料量を制御することにより、現在の
設定温度に応じて、最適な出湯温度制御を行う。According to the above-described configuration, the present invention determines the optimum PID constant for the current set temperature by the PID constant determining means based on the set temperature from the temperature setting means, and uses the PID constant to determine the PID constant.
The ID calculating means performs PID calculation so that the hot water temperature from the temperature detecting means and the set temperature from the temperature setting means becomes the set temperature, calculates the amount of fuel to be supplied to the heat source means, and calculates the amount of fuel to be supplied to the heat source means. By controlling the amount of fuel supplied to the heat source means based on the proportional control means, optimal hot water temperature control is performed according to the current set temperature.
実施例 以下に本発明の実施例を図面に基づき説明する。Example Embodiments of the present invention will be described below based on the drawings.
第１図は本発明の一実施例であるシステム構成図で、王
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からの出湯温度を検出する温
度検出手段としてのサーミスタ、５は温度設定手段６か
らの設定温度に基づき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ＰＩＤ演算手段７により算出された燃料量に基
づきバーナｌに供給する燃料量を制御する比例制御手段
としての比例弁である。FIG. 1 is a system configuration diagram that is an embodiment of the present invention. King is a burner, 2 is a heat exchanger that is heated by burner 1 to warm the flowing water, and 3 is a device that detects the temperature of hot water coming out from heat exchanger 2. a thermistor as a temperature detection means; 5, a PID constant determining means for determining a constant for PID calculation based on the set temperature from the temperature setting means 6; 6, a temperature setting means for setting the hot water temperature from the heat exchanger 2; 7 inputs the outlet temperature signal from the thermistor 3 and the set temperature signal from the temperature setting means 6, and performs PID calculation using the PID constant determined by the PID constant determining means 5 so that the outlet temperature becomes the set temperature. The PID calculation means 4 calculates the amount of fuel to be supplied to the burner 1, and 4 is a proportional valve serving as a proportional control means to control the amount of fuel supplied to the burner 1 based on the amount of fuel calculated by the PID calculation means 7.
ＰＩＤ演算手段７において行われるＰＩＤ演算は、バー
ナＩに供給する燃料量をＴＣとすると、ＴＣ＝ＫＣ・
（ＴＥＲ＋Ｔ ｉ・ΣＴＥＲ＋Ｔｄ・ΔＴＥＲ）
で表わされ、ＴＥＲは設定温度と出湯温度との偏差であ
り、サーミスタ３により検出した出湯温度をＴＨ，温度
設定手段６による設定温度をＶ Ｒとすると、
Ｔ已Ｒ雪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 by the PID calculation means 7 is as follows: TC=KC・
It is expressed as (TER+T i・ΣTER+Td・ΔTER), where TER is the deviation between the set temperature and the hot water outlet temperature, and if the hot water temperature detected by the thermistor 3 is TH, and the temperature set by the temperature setting means 6 is VR, then T It is given by 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
の設定温度に基づきＰＩＤ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７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
の設定温度により、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, the PID constant determining means 5 determines the optimum PID constants (Kc, Ti, Td) for the current set temperature based on the set temperature from the temperature setting means 6, and uses the PID constants. The PID calculating means 7 performs PID calculation so that the hot water temperature reaches the set temperature based on the hot water temperature from the thermistor 3 and the set temperature from the temperature setting means 6, and calculates the amount of fuel to be supplied to the burner 1.
The amount of fuel supplied to the burner 1 is controlled by the proportional valve 4 based on the amount of fuel.
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に
基づき、ＰＩＤ定数決定手段によって現在の設定温度に
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存する。Effects of the Invention According to the present invention, the optimum PID constant for the current set temperature is determined by the PID constant determining means based on the set temperature from the set temperature means. Also, there is an effect that optimum hot water temperature control can be performed.
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図は従来技術のシステム構成図である。
１・・・・・・バーナ（熱源手段）、２・・・・・・熱
交換器、３・・・・・・温度検出手段、４・・・・・・
比例弁（比例制御手段）、５・・・・・・ＰＩＤ定数決
定手段、６・・・・・・温度設定手段、７・・・・・・
ＰＩＤ演算手段。
代理人の氏名 弁理士 粟野重孝 はか１名ぼ計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 of a conventional technology. 1... Burner (heat source means), 2... Heat exchanger, 3... Temperature detection means, 4...
Proportional valve (proportional control means), 5... PID constant determining means, 6... Temperature setting means, 7...
PID calculation means. Name of agent: Patent attorney Shigetaka Awano (1 person total)
Claims (1)
る熱交換器と、前記熱交換器からの出湯温度を検出する
温度検出手段と、前記熱交換器からの出湯温度を設定す
る温度設定手段と、前記温度設定手段からの設定温度に
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、前記温度検出手段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、熱源手段に供給
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に基づき熱源手段に供給
する燃料量を制御する比例制御手段とを備えた給湯装置
。a heat source means, a heat exchanger that is heated by the heat source means to warm the flowing water, a temperature detection means that detects the temperature of hot water coming out of the heat exchanger, and a temperature setting device that sets the temperature of hot water coming out of the heat exchanger. and a PID constant determining means for determining a constant for PID calculation based on the set temperature from the temperature setting means, and inputting a signal of the outlet hot water temperature from the temperature detecting means and a signal of the set temperature from the temperature setting means. , a PID calculation means for calculating the amount of fuel to be supplied to the heat source means by performing a PID calculation so that the outlet temperature becomes the set temperature using the PID constant determined by the PID constant determination means; A water heater comprising: proportional control means for controlling the amount of fuel supplied to the heat source means based on the amount of fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63324098A JPH02169955A (en) | 1988-12-22 | 1988-12-22 | Hot water supplying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63324098A JPH02169955A (en) | 1988-12-22 | 1988-12-22 | Hot water supplying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02169955A true JPH02169955A (en) | 1990-06-29 |
Family
ID=18162140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63324098A Pending JPH02169955A (en) | 1988-12-22 | 1988-12-22 | Hot water supplying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02169955A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215211A (en) * | 1984-04-10 | 1985-10-28 | Omron Tateisi Electronics Co | Pid controller |
| JPS61295457A (en) * | 1985-06-21 | 1986-12-26 | Omron Tateisi Electronics Co | Combustion control unit of hot water supplier |
-
1988
- 1988-12-22 JP JP63324098A patent/JPH02169955A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215211A (en) * | 1984-04-10 | 1985-10-28 | Omron Tateisi Electronics Co | Pid controller |
| JPS61295457A (en) * | 1985-06-21 | 1986-12-26 | Omron Tateisi Electronics Co | Combustion control unit of hot water supplier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2664007B2 (en) | Control device for combustion equipment | |
| JPH02267453A (en) | water heater | |
| JPS62142953A (en) | Hot water supplier | |
| JPH04339218A (en) | thermal flow meter | |
| JPH0325026Y2 (en) | ||
| JPH0123072Y2 (en) | ||
| JPS6020043A (en) | Device to control combustion | |
| JPS6252356A (en) | Hot-water supplying device | |
| JPH0338590Y2 (en) | ||
| JPH1137554A (en) | Combustion equipment | |
| JPH0123071Y2 (en) | ||
| JP3859837B2 (en) | Combustion device | |
| JPH025988B2 (en) | ||
| JPS63153062U (en) | ||
| JPH0411776B2 (en) | ||
| JPS60223915A (en) | Combustion control method for gas instantaneous water heaters | |
| JPH01144646U (en) | ||
| JPH0275854A (en) | Controller of storage type electric water heater | |
| JPS6011299B2 (en) | temperature control device | |
| JPS62288445A (en) | Method of controlling supply hot water temperature in hot water supplier and device therefor | |
| JPH04278143A (en) | Method of setting capability of feeding out hot water in combustion device | |
| JPS62105455U (en) | ||
| JPH05272772A (en) | Mixing ratio control method when tapping hot water again in the instant type water heater | |
| JPS636337A (en) | Method of temperature control of delivered hot water | |
| JPS58217146A (en) | Heat exchanger equipped with temperature sensor |