JPS6149580B2 - - Google Patents
Info
- Publication number
- JPS6149580B2 JPS6149580B2 JP15859680A JP15859680A JPS6149580B2 JP S6149580 B2 JPS6149580 B2 JP S6149580B2 JP 15859680 A JP15859680 A JP 15859680A JP 15859680 A JP15859680 A JP 15859680A JP S6149580 B2 JPS6149580 B2 JP S6149580B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- temperature
- circulation pump
- resistor
- relay
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
Description
【発明の詳細な説明】
本発明は循環ポンプを有した温水ボイラの温度
制御装置に関するもので、循環ポンプの動作時及
び停止時に於いて温水制御温度設定を変化させ、
出湯温度を向上させることを目的とするものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temperature control device for a hot water boiler having a circulation pump.
The purpose is to improve the hot water temperature.
一般に温水ボイラには温水サーモスタツトと温
水サーモスタツトが故障した時作動する安全サー
モスタツトを設けており、両者の作動温度には、
温水サーモスタツトの作動により燃焼が停止した
後のオーバーシユートによる温度上昇を考慮し
て、10数℃の差が必要であり、又、安全サーモス
タツトの作動時に沸騰しないことが必要である。
このような上記条件を考慮した場合、温水サーモ
の作動温度は極端に低くなり、出湯温度が低くな
る。 Generally, hot water boilers are equipped with a hot water thermostat and a safety thermostat that activates when the hot water thermostat malfunctions, and the operating temperatures of both are
Taking into account the temperature rise due to overshoot after the hot water thermostat is activated, a difference of several tens of degrees Celsius is required, and it is also necessary that the water does not boil when the safety thermostat is activated.
When these conditions are taken into consideration, the operating temperature of the hot water thermostat becomes extremely low, and the hot water temperature becomes low.
本発明はかかる点を改良するためになされたも
のである。即ち循環ポンプが作動している時には
オーバーシユートの恐れがないので温水サーモの
動作温度を高く設定し、循環ポンプ停止時は、温
水サーモの動作温度を低く設定することにより上
記欠点を解消するものである。 The present invention has been made to improve this point. In other words, when the circulation pump is operating, there is no risk of overshoot, so the operating temperature of the hot water thermometer is set high, and when the circulation pump is stopped, the operating temperature of the hot water thermometer is set low, thereby solving the above drawback. It is.
以下本発明の一実施例を添付図面と共に説明す
る。第１図は制御回路図であり、１は制御回路用
直流電源、２は缶体内の温水温度を検出する温度
検出用サーミスタ、３〜７は抵抗であり、抵抗３
は後記循環ポンプ２４の動作に同期して作動する
リレー２５の接点８を介して、温水サーモ回路へ
接続され、循環ポンプ２４の動作状態に応じて温
水サーモ回路の動作温度の設定を可変する。なお
抵抗４〜７は温水サーモ回路の動作温度の設定用
である。８は後記リレー２５の接点、９は比較検
出器、１０はダイオード、１１，１２は抵抗、１
３はトランジスタ、１４はリレー、１５はダイオ
ードであり、これらの２〜１５で温水サーモ回路
を構成している。１６は炎検知回路、１７はリレ
ー、１８はダイオード、１９は燃焼制御回路、２
０はリレー、２１はダイオードである。 An embodiment of the present invention will be described below with reference to the accompanying drawings. Figure 1 is a control circuit diagram, where 1 is a DC power supply for the control circuit, 2 is a temperature detection thermistor that detects the temperature of hot water inside the can, 3 to 7 are resistors, and 3 is a resistor.
is connected to the hot water thermo circuit via a contact point 8 of a relay 25 that operates in synchronization with the operation of the circulation pump 24, which will be described later, and changes the operating temperature setting of the hot water thermo circuit in accordance with the operating state of the circulation pump 24. Note that resistors 4 to 7 are used to set the operating temperature of the hot water thermocircuit. 8 is a contact of a relay 25 described later, 9 is a comparison detector, 10 is a diode, 11 and 12 are resistors, 1
3 is a transistor, 14 is a relay, and 15 is a diode, and these 2 to 15 constitute a hot water thermocircuit. 16 is a flame detection circuit, 17 is a relay, 18 is a diode, 19 is a combustion control circuit, 2
0 is a relay, and 21 is a diode.
第２図は負荷回路図であり、２２は負荷用電
源、２３は循環ポンプ制御用のスイツチ、２４は
循環ポンプ、２５はリレーで、循環ポンプ２４に
同期して作動する。２６は安全サーモスタツト用
接点、２７は前記リレー１４の接点、２８はバー
ナモータ、２９は前記リレー１７の接点、３０は
点火トランス、３１は前記リレー２０の接点、３
２は燃料供給用電磁ポンプである。 FIG. 2 is a load circuit diagram, in which 22 is a load power source, 23 is a switch for controlling the circulation pump, 24 is a circulation pump, and 25 is a relay, which operates in synchronization with the circulation pump 24. 26 is a contact for the safety thermostat, 27 is a contact for the relay 14, 28 is a burner motor, 29 is a contact for the relay 17, 30 is an ignition transformer, 31 is a contact for the relay 20, 3
2 is an electromagnetic pump for fuel supply.
以上のような構成を有する装置に於いて、その
動作を説明すると、まず循環ポンプ制御用のスイ
ツチ２３が開状態の場合、つまり循環ポンプの停
止状態に於いては、リレー２５が非励磁の為、接
点８は開状態であり、温水サーモ回路の設定は抵
抗５〜７で定まる電圧比較器９の○−電位と温度検
出用サーミスタ２及び抵抗４で定まる○＋電位位置
により決定される。この場合抵抗４の定数をオー
バーシユートを考慮した値、即ち低設定の状態に
設定しておく。この構成において、まず温水温度
が低い場合は温度検出用サーミスタ２の抵抗値が
大きい為、電圧比較器９の入力状態は○−入力＞○＋
入力となり、出力は０状態即ちトランジスタ１３
は抵抗１２を通つてベース電流が流れる為ON状
態となり、リレー１４に励磁される。またこれと
同時に後段の回路に電源が供給され、炎検知回路
１６及び燃焼制御回路１９が所定のシーケンスに
より動作し、リレー１７，２０が励磁される。こ
れにより接点２７，２９，３１が閉状態となり、
バーナモータ２８、点火トランス３０、燃料供給
用電磁ポンプ３２が動作して着火、燃焼へと移行
する。燃焼により温度が上昇すると、温度検出用
サーミスタ２の抵抗値が小さくなり、抵抗４で定
まる○−入力の方が、抵抗６と５，７で定まる○＋力
より大きくなると出力は“１”状態となりトラン
ジスタ１３はoffし、リレー１４は非励磁、後段
回路にも電源供給がなくなる。この為、リレー１
７，２０は非励磁となり、燃焼を停止させる。以
下温水温度の状態により前記の動作を繰り返す。 To explain the operation of the device having the above configuration, first, when the circulation pump control switch 23 is in the open state, that is, when the circulation pump is stopped, the relay 25 is de-energized. , the contact 8 is in an open state, and the setting of the hot water thermocircuit is determined by the ○- potential of the voltage comparator 9 determined by the resistors 5 to 7 and the ○+ potential position determined by the temperature detection thermistor 2 and the resistor 4. In this case, the constant of the resistor 4 is set to a value that takes into account overshoot, that is, a low setting state. In this configuration, first, when the hot water temperature is low, the resistance value of the temperature detection thermistor 2 is large, so the input state of the voltage comparator 9 is ○-input>○+
input, and the output is in the 0 state, that is, the transistor 13
Since the base current flows through the resistor 12, it becomes ON, and the relay 14 is energized. At the same time, power is supplied to the subsequent circuits, the flame detection circuit 16 and the combustion control circuit 19 operate according to a predetermined sequence, and the relays 17 and 20 are energized. As a result, contacts 27, 29, and 31 become closed,
The burner motor 28, the ignition transformer 30, and the fuel supply electromagnetic pump 32 operate to initiate ignition and combustion. When the temperature rises due to combustion, the resistance value of the temperature detection thermistor 2 becomes smaller, and when the ○- input determined by the resistor 4 becomes larger than the ○+ force determined by the resistors 6, 5, and 7, the output becomes "1" state. As a result, the transistor 13 is turned off, the relay 14 is de-energized, and the subsequent circuit is also no longer supplied with power. For this reason, relay 1
7 and 20 are de-energized and combustion is stopped. The above operation is then repeated depending on the state of the hot water temperature.
次に循環ポンプ制御用スイツチ２３が閉状態の
場合、即ち循環ポンプ２４が動作状態になつてい
る時は、リレー２５が励磁状態の為、接点８は閉
状態となり抵抗４に抵抗３が並列接続される。こ
の為温水サーモ回路の動作設定温度は前記同様の
○−電位と温度検出用サーミスタ２と抵抗３，４の
並列抵抗により決定されることになり、温度検出
用サーミスタ２の抵抗が更に小さくならないと電
圧比較器９の出力は反転しないことになる。即ち
動作温度が上昇する訳である。この様に循環ポン
プ２４の動作時は燃焼停止後のオーバーシユート
が小さい為動作温度を高くして高温の湯を得るこ
とができ、その使い勝手が非常に良いものにな
る。 Next, when the circulation pump control switch 23 is in the closed state, that is, when the circulation pump 24 is in the operating state, the relay 25 is in the energized state, so the contact 8 is in the closed state, and the resistor 3 is connected in parallel to the resistor 4. be done. For this reason, the operating set temperature of the hot water thermo circuit is determined by the same ○-potential as described above, the temperature detection thermistor 2, and the parallel resistance of the resistors 3 and 4, and the resistance of the temperature detection thermistor 2 must be further reduced. The output of voltage comparator 9 will not be inverted. In other words, the operating temperature increases. In this way, when the circulation pump 24 is in operation, the overshoot after combustion is stopped is small, so the operating temperature can be raised to obtain high-temperature hot water, making it very convenient to use.
以上の様に本発明によれば、循環ポンプ動作時
には設定温度を高くすることができるため高温の
湯が得られ、その使い勝つてが非常に良いものに
なる。 As described above, according to the present invention, since the set temperature can be increased when the circulation pump is operating, hot water of high temperature can be obtained, and its utilization is very good.
第１図、第２図は本発明の一実施例にかかる温
水ボイラの温度制御装置を示す電気回路図であ
る。
２……温度検出用サーミスタ、３〜７……抵
抗、８……リレー２５の接点、９……電圧比較
器、２４……循環ポンプ。
FIGS. 1 and 2 are electrical circuit diagrams showing a temperature control device for a hot water boiler according to an embodiment of the present invention. 2...Temperature detection thermistor, 3-7...Resistor, 8...Relay 25 contact, 9...Voltage comparator, 24...Circulation pump.
Claims (1)
させて、暖房または給湯を行う温水ボイラにおい
て、缶体内の温水温度を検出する温度検出用サー
ミスタを電圧比較器の○＋入力端子に接続するとと
もに、温水サーモ回路の動作温度の設定を行う複
数の抵抗を電圧比較器の○−入力端子に接続し、前
記温度検出用サーミスタと直列に接続した抵抗の
両端に、循環ポンプの動作に同期して作動するリ
レーの接点と、循環ポンプの動作状態に応じて温
水サーモ回路の動作温度の設定を可変する抵抗の
直列回路の並列に接続したことを特徴とする温水
ボイラの温度制御装置。1. In a hot water boiler that performs heating or hot water supply by forcibly circulating the hot water pump with a circulation pump, connect the temperature detection thermistor that detects the hot water temperature inside the boiler to the ○+ input terminal of the voltage comparator, and A plurality of resistors for setting the operating temperature of the thermo circuit are connected to the - input terminal of the voltage comparator, and a resistor connected in series with the temperature detection thermistor is connected to both ends of the resistor, which operates in synchronization with the operation of the circulation pump. A temperature control device for a hot water boiler, characterized in that a relay contact is connected in parallel with a series circuit of a resistor that changes the operating temperature setting of a hot water thermocircuit according to the operating state of a circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55158596A JPS5782647A (en) | 1980-11-10 | 1980-11-10 | Temperature control device for hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55158596A JPS5782647A (en) | 1980-11-10 | 1980-11-10 | Temperature control device for hot water boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782647A JPS5782647A (en) | 1982-05-24 |
| JPS6149580B2 true JPS6149580B2 (en) | 1986-10-30 |
Family
ID=15675133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55158596A Granted JPS5782647A (en) | 1980-11-10 | 1980-11-10 | Temperature control device for hot water boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5782647A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59215537A (en) * | 1983-05-23 | 1984-12-05 | Matsushita Electric Ind Co Ltd | Water heater control device |
-
1980
- 1980-11-10 JP JP55158596A patent/JPS5782647A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5782647A (en) | 1982-05-24 |
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