JPH0138221B2 - - Google Patents
Info
- Publication number
- JPH0138221B2 JPH0138221B2 JP58250454A JP25045483A JPH0138221B2 JP H0138221 B2 JPH0138221 B2 JP H0138221B2 JP 58250454 A JP58250454 A JP 58250454A JP 25045483 A JP25045483 A JP 25045483A JP H0138221 B2 JPH0138221 B2 JP H0138221B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- room temperature
- circulation pump
- temperature
- heat source
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は熱源機により加熱された温水を放熱機
に搬送して暖房する温水暖房システムに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hot water heating system that performs heating by conveying hot water heated by a heat source device to a radiator.
従来例の構成とその問題点
従来の温水暖房システムは、温水温度を検出し
て熱源機をON―OFFさせるようにしてあり、か
つ、熱源機のON―OFFに拘らず循環ポンプは運
転を続けるようにしてある。したがつてこの構成
によれば、室内が所望の室温に達して放熱機から
の強制的な放熱が停止されても、温水温度がある
設定温度に達するまでは、熱源機はONし続ける
ことになり、また熱源機がOFFしても循環ポン
プが運転をし続けるため、温水が必要以上に高温
となつたり、あるいは放熱機や配管等からの自然
放熱によつて室温が所望の温度以上となつたり、
暖房に寄与しない放熱を続ける等、種々の熱的ロ
スが発生するという問題があつた。Conventional configuration and its problems In conventional hot water heating systems, the heat source equipment is turned ON and OFF by detecting the hot water temperature, and the circulation pump continues to operate regardless of whether the heat source equipment is ON or OFF. It's like this. Therefore, according to this configuration, even if the room reaches the desired room temperature and forced heat radiation from the radiator is stopped, the heat source device will continue to be turned on until the hot water temperature reaches a certain set temperature. Also, because the circulation pump continues to operate even if the heat source equipment is turned off, the hot water may become higher than necessary, or the room temperature may rise above the desired temperature due to natural heat radiation from the radiator or piping. Or,
There was a problem that various thermal losses occurred, such as continuous heat radiation that did not contribute to heating.
発明の目的
本考案は上記問題点に鑑みてなしたもので、温
水暖房システムの熱的ロスを最小限に抑えること
を目的としたものである。Purpose of the Invention The present invention was made in view of the above-mentioned problems, and aims to minimize thermal loss in a hot water heating system.
発明の構成
上記目的を達成するための本発明は、室温を検
出して熱源機及び循環ポンプをON・OFFさせる
構成となつており、室温が所望の温度に達する前
の適当な温度に達した時に、熱源機をOFFし、
次いで、室温が所望の温度に達すると循環ポンプ
をもOFFさせるようになつている。Structure of the Invention The present invention to achieve the above object is configured to detect the room temperature and turn on/off the heat source device and the circulation pump, so that the room temperature reaches an appropriate temperature before reaching the desired temperature. At times, turn off the heat source machine,
Next, when the room temperature reaches a desired temperature, the circulation pump is also turned off.
実施例の説明
以下その一実施例を図面とともに説明すると、
第１図において、Ａは熱源機、Ｂは循環ポンプ、
Ｃは放熱機、Ｄは温水配管である。第２図、第３
図は上記システムの電気回路を示し、１は交流電
源、２は交流を低圧直流に変換するDC電源回路
でａ、ｂに出力電圧を発生する。３ａ，４ａはリ
レー接点、５は循環ポンプ、６はリレー４がON
すると燃焼を行なう燃焼負荷である。７は室温検
出用サーミスタ、８は室温設定用可変抵抗、９，
１０，１１は抵抗で、直流電圧を分圧して基準電
圧を設定している。１２，１３は比較器、１４，
１５はデイフアレンシヤル用抵抗、１６は燃焼制
御回路、３，４は前記リレー接点３ａ，４ａの駆
動用コイル、１７，１８はオープンコレクタの駆
動回路である。DESCRIPTION OF EMBODIMENTS One embodiment will be described below with reference to drawings.
In Figure 1, A is a heat source machine, B is a circulation pump,
C is a radiator, and D is a hot water pipe. Figures 2 and 3
The figure shows the electrical circuit of the above system, where 1 is an AC power supply, 2 is a DC power supply circuit that converts AC into low-voltage DC, and generates output voltages at a and b. 3a and 4a are relay contacts, 5 is the circulation pump, and 6 is relay 4 ON.
This is the combustion load that causes combustion. 7 is a thermistor for detecting room temperature, 8 is a variable resistor for setting room temperature, 9,
10 and 11 are resistors that divide the DC voltage to set a reference voltage. 12, 13 are comparators, 14,
15 is a differential resistor, 16 is a combustion control circuit, 3 and 4 are drive coils for the relay contacts 3a and 4a, and 17 and 18 are open collector drive circuits.
上記構成においてその動作を説明すると、燃焼
制御回路１６の入力ポートI1，I2が共に「Low」
レベルの時、内部の状態により出力ポートO1，
O2の出力ポートを「High」あるいは「Low」に
する。例えば、O1→「High」、O2→「High」の
時、リレー駆動回路１７，１８はONし、リレー
コイル３，４は駆動され、リレー接点３ａ，４ａ
はONし、循環ポンプ５と、燃焼負荷６は電源供
給され、燃焼及び温水の循環を行なう。 To explain the operation in the above configuration, input ports I 1 and I 2 of the combustion control circuit 16 are both “Low”.
level, output port O 1 , depending on the internal state.
Set the output port of O 2 to "High" or "Low". For example, when O 1 → "High" and O 2 → "High," relay drive circuits 17 and 18 are turned on, relay coils 3 and 4 are driven, and relay contacts 3a and 4a are turned on.
is turned on, power is supplied to the circulation pump 5 and the combustion load 6, and combustion and hot water circulation are performed.
また燃焼制御回路１６は入力ポートI2が
「High」となると、内部の状態に拘わらず優先的
に出力ポートO2が「Low」となり、リレー駆動
回路１８がOFFしてリレー４が非導通となり、
リレー接点４ａがOFFして燃焼負荷６への電源
供給が断たれ燃焼をストツプする。また入力ポー
トI1が「High」となると、内部の状態にかかわ
らず出力ポートO1が「Low」となり、上記と同
様にリレー接点３ａがOFFとなつて循環ポンプ
がOFFする。 In addition, when the input port I 2 of the combustion control circuit 16 becomes "High", the output port O 2 preferentially becomes "Low" regardless of the internal state, the relay drive circuit 18 turns OFF, and the relay 4 becomes non-conductive. ,
Relay contact 4a turns OFF, power supply to combustion load 6 is cut off, and combustion is stopped. Furthermore, when the input port I 1 becomes "High", the output port O 1 becomes "Low" regardless of the internal state, and the relay contact 3a is turned OFF and the circulation pump is turned OFF in the same manner as above.
ここで、室温サーミスタ７と室温設定用可変抵
抗８で分圧された電位を○イ、抵抗９，１０，１１
で分圧された基準電位を夫々○ロ、○ハとすると、室
温の上昇により室温サーミスタ７の抵抗値が小さ
くなり電位○イは高くなる。即ち、室温が上昇し第
１の設定温度に達すると電位○イは基準電位○ハより
高くなり比較器１３の出力は「High」となり、
駆動回路１８，２０に入力され、燃焼がOFFす
る。しかしながら、温水温度はオーバーシユート
により若干上昇することもあり、依然として高温
を維持するので、さらに室温が上昇し、第２の設
定温度、言い換えればこれが本発明の所望の室温
で、この温度に達すると、電位○イは基準電位○ロよ
りも高くなり循環ポンプもOFFする。したがつ
て、室温が所望の温度を大きく超えることもな
く、また、暖房に寄与しない配管等からの放熱ロ
スも、温水温度が過剰に高くならず、温水の循環
も停止しているため極力抑えられる。 Here, the potential divided by the room temperature thermistor 7 and the room temperature setting variable resistor 8 is
Assuming that the reference potentials divided by are ○B and ○C, respectively, as the room temperature rises, the resistance value of the room temperature thermistor 7 becomes smaller, and the potential ○A becomes higher. That is, when the room temperature rises and reaches the first set temperature, the potential ○A becomes higher than the reference potential ○C, and the output of the comparator 13 becomes "High".
The signal is input to the drive circuits 18 and 20, and combustion is turned off. However, the hot water temperature may rise slightly due to overshoot and still maintain a high temperature, so that the room temperature rises further and reaches the second set temperature, in other words, this is the desired room temperature of the present invention. Then, the potential ○a becomes higher than the reference potential ○b, and the circulation pump is also turned off. Therefore, the room temperature does not greatly exceed the desired temperature, and heat loss from piping that does not contribute to heating is minimized as the hot water temperature does not rise excessively and hot water circulation is stopped. It will be done.
なお、第３図は、縦軸に室温、横軸に時間をと
り室温の変化と燃焼（熱源機）と循環ポンプの
ON―OFFの関係を示したもので、Ａは所望の設
定室温（第２の設定温度）、Ｂは第１の設定温度、
Ｃは燃焼及び循環ポンプが再度ONする設定温度
である。 In Figure 3, the vertical axis shows room temperature, and the horizontal axis shows time, which shows changes in room temperature, combustion (heat source equipment), and circulation pump.
It shows the ON-OFF relationship, where A is the desired set room temperature (second set temperature), B is the first set temperature,
C is the set temperature at which the combustion and circulation pumps are turned on again.
発明の効果
このように本発明によれば、所望の設定温度以
上に室温が上昇することもなく、配管等からの放
熱ロスも極力抑えることができ、温水暖房システ
ムの高効率化を実現することができる。特に本発
明では室内が小さい（以下暖房負荷が小さいとい
う）時であつても室温を確実に所望温度にするこ
とができる。すなわち暖房負荷が小さすぎて温水
温度が所定温度に下がらなくても循環ポンプは停
止するので、温水温度が所定温度に下がるまで循
環ポンプが廻り続けて室温が異常に高くなるとい
うようなことはなくなる。Effects of the Invention As described above, according to the present invention, the room temperature does not rise above the desired set temperature, and heat radiation loss from piping, etc. can be suppressed as much as possible, and high efficiency of the hot water heating system can be realized. Can be done. In particular, the present invention makes it possible to reliably keep the room temperature at a desired temperature even when the room is small (hereinafter referred to as a small heating load). In other words, even if the heating load is too small and the hot water temperature does not fall to the specified temperature, the circulation pump will stop, so the circulation pump will not continue to rotate until the hot water temperature falls to the specified temperature, which will prevent the room temperature from becoming abnormally high. .
第１図は本発明の一実施例における温水暖房シ
ステムのシステム図、第２図は同電気回路図、第
３図は同温水暖房システムの室温制御回路図、第
４図は室温と熱源機、及び循環ポンプのON―
OFFの関係を示す時間変化図である。
５Ｂ…循環ポンプ、６Ａ…熱源機、Ｄ…温水配
管。
Fig. 1 is a system diagram of a hot water heating system according to an embodiment of the present invention, Fig. 2 is an electric circuit diagram of the same, Fig. 3 is a room temperature control circuit diagram of the same hot water heating system, and Fig. 4 is a diagram of room temperature and heat source equipment. and turning on the circulation pump.
It is a time change diagram showing the relationship of OFF. 5B...Circulation pump, 6A...Heat source device, D...Hot water piping.
Claims (1)
ンプならびに温水配管と、この温水により室内の
空気を加熱する放熱機と、この室内の室温を検出
し上記熱源機及び循環ポンプをON―OFFさせる
室温制御装置とからなり、上記室温制御装置は室
温が所望の温度に達する前の適当な温度に達した
時に熱源機をOFFし、室温が所望の温度に達す
ると、循環ポンプをもOFFさせるように構成し
てなる温水暖房システム。1. A heat source device that creates hot water, a circulation pump and hot water piping that transports hot water, a radiator that heats indoor air with this hot water, and detects the room temperature in the room and turns the heat source device and circulation pump on and off. The room temperature control device turns off the heat source device when the room temperature reaches an appropriate temperature before reaching the desired temperature, and also turns off the circulation pump when the room temperature reaches the desired temperature. A hot water heating system consisting of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58250454A JPS60138335A (en) | 1983-12-26 | 1983-12-26 | hot water heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58250454A JPS60138335A (en) | 1983-12-26 | 1983-12-26 | hot water heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60138335A JPS60138335A (en) | 1985-07-23 |
| JPH0138221B2 true JPH0138221B2 (en) | 1989-08-11 |
Family
ID=17208113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58250454A Granted JPS60138335A (en) | 1983-12-26 | 1983-12-26 | hot water heating system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60138335A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5610623A (en) * | 1979-07-04 | 1981-02-03 | Toyo Robaatoshiyou Kk | Warm water room heating system |
| JPS604005Y2 (en) * | 1980-03-18 | 1985-02-04 | 三菱電機株式会社 | Hot water circulation heating device |
-
1983
- 1983-12-26 JP JP58250454A patent/JPS60138335A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60138335A (en) | 1985-07-23 |
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