JPS59120510A - Control device of bath hot-water heater - Google Patents
Control device of bath hot-water heaterInfo
- Publication number
- JPS59120510A JPS59120510A JP57228576A JP22857682A JPS59120510A JP S59120510 A JPS59120510 A JP S59120510A JP 57228576 A JP57228576 A JP 57228576A JP 22857682 A JP22857682 A JP 22857682A JP S59120510 A JPS59120510 A JP S59120510A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- thermoswitch
- hot water
- heating
- high temperature
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/54—Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools
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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はバスの温水暖房装置の制御装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a hot water heating system for a bus.
バスの暖房装置として、走行用エンジンの冷却水を温水
ボイラで加熱した後放熱器に導入して室内の暖房を行う
ようにした所謂温水暖房システムが開発されている。As a heating device for a bus, a so-called hot water heating system has been developed in which cooling water for a running engine is heated in a hot water boiler and then introduced into a radiator to heat the interior of the bus.
上記のような温水暖房システムは一般に第1図に示すよ
うに、水ポンプ1′、サーモスタット4、ラジエータ3
よりなるエンジン冷却水循環回路を持つ走行用エンジン
において、サーモスタット4の上流側からエンジン1を
冷却した後の冷却水な水弁13.水ポンプ5を介して温
水ボイラ6に導き、該温水ボイラ6から放熱器9゜デフ
ロスタ11を通る間に暖房用ファン10−により車室内
空気を暖めると共にデフロスタ用ファン12にて温風を
惹ガラス内面に吹きつけてデフロストを行い、再びエン
ジン1に戻るようになっている。The above-mentioned hot water heating system generally includes a water pump 1', a thermostat 4, and a radiator 3, as shown in Figure 1.
In a driving engine having an engine cooling water circulation circuit consisting of a water valve 13, which is the cooling water after cooling the engine 1 from the upstream side of the thermostat 4. The water is guided to a hot water boiler 6 via a water pump 5, and from the hot water boiler 6, while passing through a radiator 9 and a defroster 11, a heating fan 10- warms the air inside the vehicle, and a defroster fan 12 draws warm air to the glass. It is designed to defrost by spraying it on the inner surface and return to engine 1 again.
上記においてサーモスタット4は一般に約72°C程度
で開きはじめほぼ78°Cで全開となり、エンジン1の
冷却水をラジェータ3に流通させラジェータファン2に
て冷却した後エンジン1に戻るようになっており、こd
へりエンジン1の冷却水出口附近の水温は常時約75°
C程度に保たれるようになっているのが普通である。In the above, the thermostat 4 generally opens at about 72°C and fully opens at about 78°C, and the cooling water of the engine 1 is circulated through the radiator 3 and cooled by the radiator fan 2 before returning to the engine 1. , this d
The water temperature near the cooling water outlet of Heri Engine 1 is always approximately 75°.
Normally, it is kept at about C.
従ってエンジン1の出口からポンプ5により暖房回路に
供給される水温は配管途中の自然放熱等の損失を考慮に
入れるとほぼ70°C前後程度である。Therefore, the temperature of the water supplied from the outlet of the engine 1 to the heating circuit by the pump 5 is approximately 70° C., taking into account losses such as natural heat radiation along the piping.
温水ボイラ6には温水の温度を検出して作動するサーモ
スイッチ7が設けられ、温水ボイラ6内の温水温度が6
0°Cまで下るとサーモスイッチ1がオンとなって温水
ボイラ6が内部の温水を加熱し、ボイラ内温水が70°
CKなるとサーモスイッチTがオフとなって加熱を停止
するようになっており、これにより例えは停車中でエン
ジン1がアイドル運転しているとき、一時停止の頻度の
多い走行状態、下り坂走行時或は暖機運転中等のエンジ
ン出力が小なるとき及び異常に外気温が低くエンジン冷
却水温が高くならないとき等においても暖房温度を低下
させることがないようになっている。The hot water boiler 6 is provided with a thermoswitch 7 that detects the temperature of the hot water and operates, so that the hot water temperature in the hot water boiler 6 reaches 6.
When the temperature drops to 0°C, the thermo switch 1 is turned on and the hot water boiler 6 heats the hot water inside the boiler, and the hot water inside the boiler reaches 70°C.
When CK occurs, thermo switch T is turned off and heating is stopped. This can be done, for example, when the vehicle is stopped and engine 1 is idling, when the vehicle is stopped frequently, when the vehicle is stopped frequently, or when driving downhill. Alternatively, the heating temperature is not lowered even when the engine output is small during warm-up operation or when the outside temperature is abnormally low and the engine cooling water temperature does not rise.
ところが上記のような従来の温水暖房システムにおいて
は、エンジン1の出口水温はサーモスタット4の設定温
度以上になるとラジェータ3にて冷却して決してサーモ
スタット4の設定値の上限例えば78°Cを越えること
がないようになっており、且つ温水ボイラ6に内装され
ているサーモスイッチ7の設定温度の最高値は当然上記
サーモスタット4の設定温度以下に設定されなければな
らない(もしサーモスイッチの設定温度をサーモスタッ
ト4より筒くすると常時温水ボイラは燃焼加熱状態とな
り燃料の消費が増加し実用化され得ない)ので、従って
放熱器9に供給される温水温度は決してサーモスタット
4の設定最高値即ち78°C以上にはなり得す、外気温
が異常に低温の場合は暖房温度が不足ぎみになる。However, in the conventional hot water heating system as described above, when the outlet water temperature of the engine 1 exceeds the set temperature of the thermostat 4, it is cooled by the radiator 3 and never exceeds the upper limit of the set value of the thermostat 4, for example, 78°C. In addition, the maximum setting temperature of the thermoswitch 7 installed in the hot water boiler 6 must naturally be set below the setting temperature of the thermostat 4 (if the setting temperature of the thermoswitch is (If it is made more cylindrical, the hot water boiler will always be in a state of combustion heating, increasing fuel consumption and cannot be put into practical use.)Therefore, the temperature of the hot water supplied to the radiator 9 should never exceed the maximum setting of the thermostat 4, which is 78°C. This can happen, and if the outside temperature is abnormally low, the heating temperature will be insufficient.
又一般にバスは全長が11〜1277にと長く、最後部
にエンジンを搭載し且つデフロスタ11は運転席近辺に
設けなければならないので、暖房用の温水配管はその全
長が25〜30771にも達し、又椅子やフェンダ−等
をよけつつ屈曲配設されることになるので、渇水の流通
抵抗は温水流量60I−/分程度で25〜60m水柱に
達する0エンジン1の水ポンプ1′は25〜60m水柱
の高圧で送水できるようになっているがポンプ5は通常
電動式で577L水柱程度の圧送能力であり、逝常時は
ポンプ5に水ポンプ1′の圧力が加わ\つて暖房糸へ送
水されるので問題ないが、寒冷時における高速走行時や
長い登り坂等のエンジン負荷が犬なるとき、冷却水温が
上昇しサーモスタット4は全開となり水ポンプ1′の圧
送力はラジェータ3側に分散されてし捷い、この為暖房
系への送水量が減少して充分な熱量を供給できず、エン
ジン冷却水温は上昇するが暖房能力が減少すると言う不
具合が生じ、このとき水温は高いので温水ボイラ6のサ
ーモスタットTはオフのま1であり、結局暖房不足とな
ってしまう。In addition, buses generally have a long total length of 11 to 1,277 mm, and the engine is mounted at the rear and the defroster 11 must be installed near the driver's seat. In addition, since the arrangement is bent while avoiding chairs, fenders, etc., the flow resistance of drought water reaches a water column of 25 to 60 m at a hot water flow rate of about 60 I/min.The water pump 1' of engine 1 is 25 to Although it is designed to be able to send water at a high pressure of 60 m water column, pump 5 is normally electric and has a pumping capacity of about 577 L water column, and when it is dead, the pressure of water pump 1' is applied to pump 5 and water is sent to the heating string. However, when the engine load is heavy, such as when driving at high speed in cold weather or climbing a long hill, the cooling water temperature rises and the thermostat 4 is fully opened, and the pumping force of the water pump 1' is distributed to the radiator 3 side. As a result, the amount of water sent to the heating system decreases, making it impossible to supply sufficient heat, causing a problem in which the engine cooling water temperature rises but the heating capacity decreases.At this time, the water temperature is high, so hot water boiler 6 The thermostat T was turned off, resulting in insufficient heating.
本発明は上記のような従来の問題を解消することを目的
とするものであり、以下本発明を第2.6図の実57通
例を参照して説明する。The present invention aims to solve the conventional problems as described above, and the present invention will be explained below with reference to a practical example 57 shown in Fig. 2.6.
本発明では第1図の一般的な温水暖房システムの温水ボ
イラ6から放熱器9に至る温水の温度を検出し前記サー
モスタット4の設定最高値より高い温度でオフとなりそ
れ以下では常時オンとなっている高温サーモスイッチ8
を附加する。In the present invention, the temperature of hot water from the hot water boiler 6 to the radiator 9 of the general hot water heating system shown in FIG. High temperature thermo switch 8
Add.
そして第2図に示すように電源Eから暖房用メインスイ
ッチS1+サーモスイツチ7を通り温水ボイラ6の加熱
装RWよりアースに至る温水ボイラ制御t回路に、上記
高温サーモスイッチ8をサーモスイッチ7と並列に接続
すると共に、上記サーモスイッチ70回路と高温サーモ
スイッチ80回路とを切換制御する切換スイッチS2を
設け、通常時は切換スイッチS2をサーモスイッチ70
回路がオン、高温サーモスイッチ80回路がオフとなる
ようにセットしておき、従来通り温水ボイラ6は低湿側
のサーモスイッチ7により制御されるが、例えば前記の
ように極寒冷時におけるエンジン負荷大なる走行状態で
暖房温度が不足したとき切換スイッチS2を高温サーモ
スイッチ8側に切換え温水ボイラで温水を高温に加熱し
て放熱器9を流れる温水温度を上昇させ、強暖房状態と
することができるようにしたものである。Then, as shown in FIG. 2, the high temperature thermoswitch 8 is connected in parallel with the thermoswitch 7 in the hot water boiler control circuit from the power source E through the heating main switch S1 + thermoswitch 7 and from the heating device RW of the hot water boiler 6 to the ground. A changeover switch S2 is provided to connect to the thermoswitch 70 circuit and the high temperature thermoswitch 80 circuit, and to control the switching between the thermoswitch 70 circuit and the high temperature thermoswitch 80 circuit.
The circuit is set so that the high temperature thermo switch 80 circuit is turned on and the high temperature thermo switch 80 circuit is turned off, and the hot water boiler 6 is controlled by the low humidity side thermo switch 7 as before. When the heating temperature is insufficient in the running state, the selector switch S2 is switched to the high temperature thermoswitch 8 side, and the hot water boiler heats the hot water to a high temperature to increase the temperature of the hot water flowing through the radiator 9, thereby creating a strong heating state. This is how it was done.
上記高温サーモスイッチ8は例えば水温が98〜10口
°Cでオフ、それ以下でオンとなるよう設定することか
望ましい。この設定温度は水の沸点に;ql/−1温度
であるが、暖房システム中の温水は水ポンプ1′及びポ
ンプ5の吐出圧により常時鍾低1077L水柱(I K
Sム)程度に加圧されておりその圧力により沸点は高く
なっているので実用上問題が生じることは全くない。It is desirable that the high-temperature thermoswitch 8 is set to turn off when the water temperature is 98 to 10°C, and turn on when the water temperature is lower than that. This set temperature is equal to the boiling point of water; ql/-1 temperature, but the hot water in the heating system is always at a low level of 1077 L water column (I K
Since the boiling point is raised by the pressure, there is no problem in practical use.
尚第2図においてT、は室1晶設定サーモスイッチであ
り、該サーモスイッチT1のオン、オフによってリレー
山が作動し、sp−渦が設定値以上になるとR,S+が
オフとなってサーモスイッチγの回路ケ遮断すると共に
R82か作動して高温サーモスイッチ80回路を切り低
高のサーモスイッチ70fliに切換えるよう構成され
、これにより室内温度をほぼ一定に保つようになってい
る。In Fig. 2, T is a chamber 1 crystal setting thermoswitch, and the relay mountain is activated by turning on and off the thermoswitch T1, and when the sp-vortex exceeds the set value, R and S+ are turned off and the thermostat is turned off. The circuit of the switch γ is cut off, and R82 is activated to cut off the circuit of the high temperature thermoswitch 80 and switch to the low/high thermoswitch 70fli, thereby keeping the indoor temperature almost constant.
第6図は本発明の第2の実施例を示すもので、第2図の
実施例の手動の切換スイッチS2の代りに、外気温度セ
ンサT2とそれによって作動するリレーR2とを用い、
通常の暖房時はリレースイッチR8がサーモスイッチγ
の回路側をオン、高温ザーモスイッチ80回路側をオフ
とし、従来通りの暖房制御を行うが、外気温が設定値以
下となると外気温fiセンサT2がオンとなってリレー
R2が作動し、リレースイッチ)(8が高温サーモスイ
ッチ80回路をオンとするよう切換わり、強暖房となる
ようになっており、その他の・i′4成は第2図と同じ
で第2図と同一の符号は同一の部分を表わす。FIG. 6 shows a second embodiment of the present invention, in which an outside air temperature sensor T2 and a relay R2 actuated by the sensor are used in place of the manual changeover switch S2 of the embodiment of FIG.
During normal heating, relay switch R8 is thermo switch γ
circuit side is turned on, high temperature thermo switch 80 circuit side is turned off, and conventional heating control is performed. However, when the outside temperature falls below the set value, outside temperature fi sensor T2 is turned on, relay R2 is activated, and the relay switch ) (8 is switched to turn on the high temperature thermoswitch 80 circuit, resulting in strong heating; the other i'4 configurations are the same as in Figure 2, and the same symbols as in Figure 2 are the same. represents the part of
この例では暖房効果の強弱の切換えが自動的に行われ、
運転音の負担軽減をはかり得る。In this example, the heating effect is automatically switched between strong and weak.
It is possible to reduce the burden of driving noise.
以上のように本発明によれば温水ボイラな用いたバス用
暖房装置において、極めて簡単なる構成によって従来の
暖房不足と言う不具合を的確に防止し得るもので、実用
上多大の効果をもたらし得るものである。As described above, according to the present invention, in a bus heating system using a hot water boiler, it is possible to accurately prevent the conventional problem of insufficient heating with an extremely simple configuration, and it can bring about great practical effects. It is.
第1図は本発明を適用した湿水豚房システムの系統説明
図、第2図及び第6図は本発明の実施例をそれぞれ示す
制御回路図である。
1・・・エンジン、1′・・・水ポンプ、2・・・ラジ
ェータファン、3・・・ラジェータ、4・・・サーモス
タット、5・・・ポンプ、6・・・濡水ボイラ、γ・・
・サーモスイッチ、8・・・高温サーモスイッチ、9・
・・放熱器、10・・・暖房用ファン、11・・・デフ
ロスタ、12・・・デフロスタ用ファン、■)・・・%
i?、S、・・・メインスイッチ、S2・・・切換スイ
ッチ、w−温水ボイラの加熱装置、r−t、、 、 i
t、□・・・リレー、T、・・・室温設定サーモスイッ
チ、T2・・・外気温度センサ。
以 」ニ
ー誉巨うじ1FIG. 1 is a system explanatory diagram of a wet pig stall system to which the present invention is applied, and FIGS. 2 and 6 are control circuit diagrams showing embodiments of the present invention, respectively. 1...Engine, 1'...Water pump, 2...Radiator fan, 3...Radiator, 4...Thermostat, 5...Pump, 6...Wet water boiler, γ...
・Thermo switch, 8... High temperature thermo switch, 9.
...Radiator, 10...Heating fan, 11...Defroster, 12...Defroster fan, ■)...%
i? , S... Main switch, S2... Changeover switch, w-hot water boiler heating device, r-t, , , i
t, □...Relay, T,...Room temperature setting thermoswitch, T2...Outside temperature sensor. ``Ni Homare Giant Uji 1
Claims (2)
プにより温水ボイラに送りこ\で加熱した後放熱器に導
いて室内を暖房するようにしだ温水暖房装置において、
電源より温水ボイラ内蔵のサーモスイッチを通り)昔水
ボイラ加熱装置に至る温水ボイラ加熱制御回路に、湿水
ボイラより放熱器に至る間の温水の温度を検出し前記サ
ーモスイッチの設定温度より高い温度でオフとなりそれ
以下ではオンとなる高温サーモスイッチを、上記サーモ
スイッチと並列に接続し、該サーモスイッチと高温サー
モスイッチとを切換える切換スイッチを設けたことを特
徴とするバス用温水暖房装置の制御装置。(1) In a hot water heating system, cooling water after cooling the running engine of a bus is sent to a hot water boiler by a water pump, heated, and then guided to a radiator to heat the room.
The hot water boiler heating control circuit that goes from the power supply to the hot water boiler's built-in thermo switch) used to detect the temperature of the hot water between the wet water boiler and the radiator, and detect a temperature higher than the set temperature of the thermo switch. A control for a hot water heating system for a bus, characterized in that a high temperature thermoswitch that is turned off at a temperature and turned on at a temperature lower than that is connected in parallel with the thermoswitch, and a changeover switch is provided for switching between the thermoswitch and the high temperature thermoswitch. Device.
て外気温が設定値以上の場合はサーモスイッチ側がオン
となり、所定値以下のとき高温サーモスイッチ側がオン
となるよう自動的に切換えられるようになっていること
を特徴とする特許請求の範囲第1項に記載のバス用温水
暖房装置の制御装置。(2) The changeover switch is automatically switched so that when the outside temperature is above a set value, the thermoswitch side is turned on, and when the outside temperature is below a predetermined value, the high temperature thermoswitch side is turned on. A control device for a hot water heating device for a bus according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57228576A JPS59120510A (en) | 1982-12-28 | 1982-12-28 | Control device of bath hot-water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57228576A JPS59120510A (en) | 1982-12-28 | 1982-12-28 | Control device of bath hot-water heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59120510A true JPS59120510A (en) | 1984-07-12 |
JPS621843B2 JPS621843B2 (en) | 1987-01-16 |
Family
ID=16878524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57228576A Granted JPS59120510A (en) | 1982-12-28 | 1982-12-28 | Control device of bath hot-water heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59120510A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61111817U (en) * | 1984-12-27 | 1986-07-15 | ||
JP2022055722A (en) * | 2020-09-29 | 2022-04-08 | トヨタ自動車株式会社 | Control device and control method |
-
1982
- 1982-12-28 JP JP57228576A patent/JPS59120510A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61111817U (en) * | 1984-12-27 | 1986-07-15 | ||
JP2022055722A (en) * | 2020-09-29 | 2022-04-08 | トヨタ自動車株式会社 | Control device and control method |
Also Published As
Publication number | Publication date |
---|---|
JPS621843B2 (en) | 1987-01-16 |
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