JPS58117915A - Combustion controller - Google Patents
Combustion controllerInfo
- Publication number
- JPS58117915A JPS58117915A JP57001470A JP147082A JPS58117915A JP S58117915 A JPS58117915 A JP S58117915A JP 57001470 A JP57001470 A JP 57001470A JP 147082 A JP147082 A JP 147082A JP S58117915 A JPS58117915 A JP S58117915A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pilot
- main
- pressure
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
- F23N5/105—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/22—Pilot burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/28—Ignition circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/14—Fuel valves electromagnetically operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/18—Groups of two or more valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はガス瞬間湯沸器の燃焼制御装置に関するもので
、被加熱体である水の通水ＶＣよってガス燃焼が自動的
に始動し、水が停止すれば燃焼も自動停止する制御装置
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion control device for a gas instantaneous water heater, in which gas combustion is automatically started by the passage of water (VC), which is a heated object, and when the water stops, combustion is resumed. It is a control device that automatically stops.
簡易な瞬間湯沸器ではパイロットバーナを点火させた後
に通水し、メインバーナは水圧応動弁で開くことによっ
て主燃焼が始まる形式であったが、使用の度ＶＣガスコ
ック操作と止水コック操作を必要とする不便さがあった
。このため、通水のみで燃焼が自動スタートする湯沸器
が求められて、特に本体を屋外に設けるなど湯の使用場
所と離れて設置する場合に実施されている。In simple instantaneous water heaters, water was passed after the pilot burner was ignited, and main combustion was started by opening the main burner with a hydraulic valve, but each time it was used, the VC gas cock and water stop cock had to be operated. It was an inconvenience that required it. For this reason, there is a demand for water heaters that automatically start combustion just by passing water through them, and are being implemented especially when the main body is installed outdoors or otherwise away from the place where the hot water is used.
第１図はこのような目的で行われている従来の代表的な
例である。すなわち、主バーナ１ヘガスを供給する主管
路２の途中に第１電磁弁３と第２電磁弁４を直列に設け
、両電磁弁の中間からパイロットバー、す５に致るパイ
ロット管路６を分岐している。−４方、水路７の途中に
は通水を機械的な変位に変換するダイヤフラムやフロー
トなどを有する通水検知器８が設けられると共に、主パ
ーナ１で加熱される熱交換器９が設けられている。前記
通水検知器８で作動されるスイッチ１０の接点信号と、
パイロットバーナ６で加熱される熱電対１１の起電力信
号はコントローラ１２へ送られている。又、コントロー
ラ１２は図示していないが商用電源で作動しており、電
源オンによって器具ノ使用が可能となるものである。FIG. 1 is a typical example of a conventional method used for this purpose. That is, a first solenoid valve 3 and a second solenoid valve 4 are provided in series in the middle of a main pipe 2 that supplies gas to the main burner 1, and a pilot pipe 6 is connected from the middle of both solenoid valves to a pilot bar 5. It's branching out. - A water flow detector 8 having a diaphragm, a float, etc. that converts water flow into mechanical displacement is provided in the middle of the waterway 7 on all four sides, and a heat exchanger 9 heated by the main purner 1 is provided. ing. a contact signal of a switch 10 activated by the water flow detector 8;
The electromotive force signal of the thermocouple 11 heated by the pilot burner 6 is sent to the controller 12. Although not shown, the controller 12 is powered by commercial power, and the appliance can be used by turning on the power.
この例に於ける動作は次の通りである。通水すれば通水
検知器８によってスイッチ１０の接点が切り換わり、コ
ントローラ１２では第１電磁弁３を開くと共に図示して
いない点火器を始動させて、パイロットバーナ６に点火
する。やがて、熱電対１１起電力が一定値を越えるか起
電力増加傾向が所定値に達すればコントローラ１２は第
２電磁弁４も開いて主バーナ１で燃焼させると共に点火
器を停止させるのである。そして水路７中の上流側又は
下流側で蛇口を閉めるとスイッチ１ｏが元の状態にもど
るのでコントローラ１２は両電磁弁を閉じて燃焼を停止
させるのである。もちろん、コントローラ１２には、第
１電磁弁３を開いた後、ある一定時間経過しても起電力
信号を得られない場合や、パイロットバーナ６の失火に
より起電力信号が消滅した場合には第１’ｄＮ磁弁３を
自動的に閉じるという安全機能を有している。又、熱電
対１１の代わ９にフレームロンドを用いる場合もある。The operation in this example is as follows. When water flows, the contacts of the switch 10 are switched by the water flow detector 8, and the controller 12 opens the first electromagnetic valve 3 and starts an igniter (not shown) to ignite the pilot burner 6. Eventually, when the electromotive force of the thermocouple 11 exceeds a certain value or the increasing tendency of the electromotive force reaches a predetermined value, the controller 12 also opens the second solenoid valve 4 to cause combustion in the main burner 1 and stop the igniter. When the faucet is closed on the upstream or downstream side of the water channel 7, the switch 1o returns to its original state, so the controller 12 closes both electromagnetic valves and stops combustion. Of course, if the electromotive force signal is not obtained even after a certain period of time has passed after opening the first solenoid valve 3, or if the electromotive force signal disappears due to a misfire in the pilot burner 6, It has a safety function of automatically closing the 1'dN magnetic valve 3. Further, a flame iron may be used instead of the thermocouple 11.
こうして、蛇口の開閉のみで燃焼を自動的に発停するガ
ス瞬間湯沸器は広く用いられているが、商用電源を必要
とするので停電時に使用出来ない問題があった。又、屋
外機器の場合には防水対策をした屋外コンセントが必要
であり、・屋外コンセントが無い場合には電気工事を新
規に行う必要があり設置Ｔ″Ｊ１．］−の制約となって
いる１、史に、風呂釜と一体になった湯沸器ては安全上
低電圧化すると共に二重絶縁など慎重な配慮を必要とす
るのでどうしても高価になっていた。Although gas instantaneous water heaters that automatically start and stop combustion by simply opening and closing a faucet are widely used, they require a commercial power source and cannot be used during a power outage. In addition, in the case of outdoor equipment, an outdoor outlet with waterproof measures is required, and if there is no outdoor outlet, it is necessary to perform new electrical work, which is a restriction on installation. Historically, water heaters integrated with bathtubs were expensive because they required careful considerations such as low voltage and double insulation for safety reasons.
本発明では以上の点に鑑みて、商用電源を用いることな
く通水の開閉のみで燃焼の自動発停が行える湯沸器の燃
焼制御装置を得ることを目的としている。In view of the above points, the present invention aims to provide a combustion control device for a water heater that can automatically start and stop combustion by simply opening and closing water flow without using a commercial power source.
すなわち、主バーナに致る上流側から設けた主弁及び圧
力応動弁と、主弁と圧力応動弁の中間から分岐しパイロ
ットバーナに致るパイロット管の途中に設けたパイロッ
ト弁と、パイロットバーナで加熱される熱電対と、主弁
の開閉に連動する運転スイッチと点火器並びに電池とを
有し、運転スイッチが動作した後しばらくは通電しやが
て停止される電池の出力で点火器とパイロット弁を・作
動させると共に、パイロット弁には熱起電力をも供給し
、圧力応動弁はパイロット管の圧力変化によって作動す
るものであって、主弁を通水によって開閉する水圧応動
弁で構成すると、通水されると主弁が開き運転スイッチ
が切換ってパイロット弁が開くと同時に点火器が始動し
てパイロットバーナが点火しパイロット弁は熱起電力で
開弁状態を維持する。同時にパイロット管の圧力が変化
するから圧力応動弁も開いて主バーナで燃焼を開始する
０このように、パイロット弁を電池出力で一時的に開い
た後は熱起電力でそれを維持し、圧力応動弁は間接的に
開かせることによって商用電源を用いることなく通水の
みで燃焼の始動停止を行わせしめたものである。In other words, the main valve and pressure-responsive valve installed from the upstream side leading to the main burner, the pilot valve installed in the middle of the pilot pipe branching from between the main valve and the pressure-responsive valve and reaching the pilot burner, and the pilot valve installed in the pilot burner. It has a thermocouple that heats up, an operation switch that is linked to the opening and closing of the main valve, an igniter, and a battery.After the operation switch is activated, the power is turned on for a while, and then the battery output turns off the igniter and pilot valve.・A thermoelectromotive force is also supplied to the pilot valve, and the pressure-responsive valve is activated by pressure changes in the pilot pipe.If the main valve is configured with a water-pressure-response valve that opens and closes when water flows through it, it will not work properly. When the main valve is exposed to water, the operation switch is switched and the pilot valve is opened. At the same time, the igniter starts, the pilot burner is ignited, and the pilot valve is maintained in an open state by thermoelectromotive force. At the same time, the pressure in the pilot pipe changes, so the pressure-responsive valve also opens and combustion begins in the main burner. In this way, after the pilot valve is temporarily opened by the battery output, it is maintained by thermoelectromotive force, and the pressure is By opening the response valve indirectly, combustion can be started and stopped using only water flow, without using commercial power.
次に本発明の実施例に基いて詳しく説明を加える。第２
図は、本発明をガス瞬間湯沸黙に応用した例に於けるガ
ス、水、電気の回路構成図である。Next, a detailed explanation will be given based on examples of the present invention. Second
The figure is a circuit configuration diagram of gas, water, and electricity in an example in which the present invention is applied to instantaneous gas water boiling.
ここで、主バーナ１０１ヘガスを導く主管路１ｏ２には
上流側から主弁１ｏ３と圧力応動弁１０４が挿入されて
おり、この両弁の中間からパイロットバーナ１０５に通
じるパイロット管１０６が分岐しその途中にパイロット
弁１０７が挿入されている。パイロット弁１０７の上流
側のパイロット管１０６にはオリフィス１０８があっ又
、オリフィス１０８とパイロット弁１０７の中間の圧力
は圧力応動弁１０４に作用している。そして、第３図で
詳しく説明するように、オリアイス１０８と圧力を伝達
する部分は圧力応動弁１０４と一体に−まとめられてパ
イロット型ダイヤフラム弁１０９となっている。Here, a main valve 1o3 and a pressure-responsive valve 104 are inserted from the upstream side into a main pipe line 1o2 that leads gas to the main burner 101, and a pilot pipe 106 leading to a pilot burner 105 branches from the middle of these two valves. A pilot valve 107 is inserted into. There is an orifice 108 in the pilot pipe 106 on the upstream side of the pilot valve 107, and the pressure between the orifice 108 and the pilot valve 107 acts on the pressure-responsive valve 104. As will be explained in detail in FIG. 3, the portion that transmits pressure to the oriice 108 is integrated with the pressure responsive valve 104 to form a pilot type diaphragm valve 109.
一方、水は通水路１１０の途中に水圧応動部１１１が設
けられ、その後で熱交換器１１２で加熱される。水圧応
動部１１１は通水差圧をダイヤフラムで受けて、その力
で機械的に主弁１０３を開くもので従来公知の方法であ
るから詳述しない。On the other hand, water is provided with a hydraulic response part 111 in the middle of the water passage 110, and then heated with a heat exchanger 112. The water pressure response unit 111 receives the water flow differential pressure through a diaphragm and uses the force to mechanically open the main valve 103, which is a conventionally known method and will not be described in detail.
又、主弁１０３は開くと同時に運転スイッチ１１３を開
くようこれも機械的に連動するよう構成されている。す
なわち、通水することによって主弁１０３を開くと共に
運転スイッチ１１′３を切換え、通水を停止すれば主弁
１０３は閉じ運転スイッチ１１３も元に復帰するもので
ある。Further, the main valve 103 is configured to be mechanically interlocked so that the operation switch 113 is opened at the same time as the main valve 103 is opened. That is, by passing water, the main valve 103 is opened and the operation switch 11'3 is switched, and when the water supply is stopped, the main valve 103 is closed and the operation switch 113 is also returned to its original state.
次に電気系の回路について説明を行う。１１４はパイロ
ットバーナ１０６で加熱される熱雷対であって、その出
力はパイロット弁１０７の第１コイル１１６に供給され
ている。運転スイッチ１１３は通水されない状態では電
池１１６をコンデンサ１１７に接続しており、コンデ／
す１１７は充電されている。運転スイッチ１１３が切換
わると、コンテ／す１１７はパイロット弁１０７の第２
コイル１１８と点火器１１９に対して放電し、電圧が所
定値以下に低下するまでのしばらくの間はパー イロ
ノト弁１０７を開弁させると共に点火器１１９の電極１
２０間に火花放電を発生させることが出来る。コンデン
サ１１７の電荷が放出されてしまうと点火器１１９は停
止すると共に第２コイル１１８への電力供給も停止する
。このコンデンサ１１７による動作時間はコンデ／ザ容
駄によって任意に変えることが可能であるが、後述する
ような動作から、熱電対１１４の出力でパイロット弁１
０７を開弁維持可能な値まで熱起電力が達つする時間の
関係で設定する必要がある。Next, the electrical circuit will be explained. A thermal lightning pair 114 is heated by the pilot burner 106, and its output is supplied to the first coil 116 of the pilot valve 107. The operation switch 113 connects the battery 116 to the capacitor 117 when water is not flowing, and the condenser/condenser
117 is charged. When the operation switch 113 is switched, the container/suction 117 is switched to the second position of the pilot valve 107.
The coil 118 and the igniter 119 are discharged, and the electrode 1 of the igniter 119 is opened for a while until the voltage drops below a predetermined value.
A spark discharge can be generated within 20 minutes. When the charge in the capacitor 117 is discharged, the igniter 119 is stopped and the power supply to the second coil 118 is also stopped. The operating time of this capacitor 117 can be arbitrarily changed by changing the capacitor/capacitor, but from the operation described later, the output of the thermocouple 114 is used to control the pilot valve 1.
07 must be set in relation to the time required for the thermoelectromotive force to reach a value that allows the valve to remain open.
圧力応動１０４の構成例について第３図の断面図によっ
て説明を行う。主管路１０２の途中の弁ハウジング中に
弁座１２１があって、ダイヤフラム１２２と一体の弁ゴ
ム１２３によって開閉されるようになっており、スプリ
ング１２４で常時閉方向の力が与えられている。これら
の要素が圧力応動弁１０４を構成していると言って良い
。ダイヤフラム１２２の中央を貫通して弁座１２１より
」−流側の主管路１０２とダイヤフラム背圧室１２６を
結ぶ細孔があり、これがオリフィス１０８である。背圧
室１２６からはパイロット弁１０７を経てパイロットバ
ーナに致るパイロット管１０６が接続されている。さて
、パイロット弁１０７が閉じている場合は、主弁１０３
が開いてもダイヤフラム背圧室１２６のガス圧力は弁座
１２１の上流側と同じであるから、このガス圧によるダ
イヤフラム１２２の閉方向の力とスプリング１２４の力
で弁は閉じたＩｉまである。An example of the configuration of the pressure response 104 will be explained with reference to the cross-sectional view of FIG. A valve seat 121 is provided in the valve housing in the middle of the main conduit 102, and is opened and closed by a valve rubber 123 integrated with a diaphragm 122, and a force in the closing direction is always applied by a spring 124. It can be said that these elements constitute the pressure-responsive valve 104. There is a pore that passes through the center of the diaphragm 122 and connects the main conduit 102 on the downstream side of the valve seat 121 and the diaphragm back pressure chamber 126, and this is the orifice 108. A pilot pipe 106 is connected from the back pressure chamber 126 through a pilot valve 107 to a pilot burner. Now, if the pilot valve 107 is closed, the main valve 103
Even if the valve is opened, the gas pressure in the diaphragm back pressure chamber 126 is the same as that on the upstream side of the valve seat 121, so the force in the closing direction of the diaphragm 122 due to this gas pressure and the force of the spring 124 keep the valve closed until Ii.
パイロット弁１０７が開くとパイロット管１０６にガス
が流れるのでオリフィス１０８での圧力降下が急増し背
圧室１２６の圧力は著しく低下する。When the pilot valve 107 opens, gas flows into the pilot pipe 106, so the pressure drop at the orifice 108 rapidly increases and the pressure in the back pressure chamber 126 drops significantly.
この結果、弁座内径に加わる開方向の供給ガス圧の力が
、スプリング１２４と背圧室１２６のガス圧による閉方
向の力に打勝って弁ゴム１２３は第３図で上方へ移動す
る。そして、ダイヤフラム１２２の下面全体に供給ガス
圧が加わると開方向の力が増々高くなるので完全な開弁
状態になるのである。再び第１パイロツト弁１０７が閉
じられると、オリフィス１０８を通じてダイヤフラム１
２２の両面の圧力は等しくなるのでスプリング１２４の
力で閉方向に移動し、弁ゴム１２３が弁座１２１に８接
すると開方向のガス圧による力が急減するから完全な閉
弁状態にもどるり、このように第３図の実施例はオリフ
ィス１０８も一体となったパイロット型ダイヤフラム弁
１０９を形成している。As a result, the force of the supply gas pressure applied to the inner diameter of the valve seat in the opening direction overcomes the force in the closing direction due to the spring 124 and the gas pressure in the back pressure chamber 126, and the valve rubber 123 moves upward in FIG. 3. Then, when the supply gas pressure is applied to the entire lower surface of the diaphragm 122, the force in the opening direction increases more and more, so that the valve is completely opened. When the first pilot valve 107 is closed again, the diaphragm 1 flows through the orifice 108.
Since the pressure on both sides of the valve 22 is equal, the force of the spring 124 moves it in the closing direction, and when the valve rubber 123 contacts the valve seat 121, the force due to the gas pressure in the opening direction suddenly decreases, so the valve returns to the completely closed state. In this way, the embodiment shown in FIG. 3 forms a pilot type diaphragm valve 109 in which the orifice 108 is also integrated.
第４図には電気回路の他の実施例である。ここではコン
デ／す１１７の充電エネルギーは運転スイッチ１１３切
換わり後にリレーコイル１２６に対して辱えられる。そ
してリレー接点１２７をオンさせて′電池１１６の電力
を点火器１１９とパイロット弁１ｏ７の第２コイル１１
８へ供給している。この方法では、リレーを必要とする
がコンデンサ１１７の容量は第２図の実施例より低く設
定することが可能である。FIG. 4 shows another embodiment of the electric circuit. Here, the charging energy of the converter 117 is applied to the relay coil 126 after the operation switch 113 is switched. Then, the relay contact 127 is turned on to transfer the power from the battery 116 to the igniter 119 and the second coil 11 of the pilot valve 1o7.
8. Although this method requires a relay, the capacitance of the capacitor 117 can be set lower than in the embodiment shown in FIG.
パイロット弁１０７は電池１１６の出力で開弁し、熱電
対１１４の出力で開弁維持するものであるから通常の商
用電源を用いる電磁弁よりもはるかに低電力で作動する
ものでなければならない。Since the pilot valve 107 is opened by the output of the battery 116 and kept open by the output of the thermocouple 114, it must be operated with much lower power than a solenoid valve that uses a normal commercial power source.
その−例を第６図のパイロット弁断面図と第６図の磁気
回路斜視図にて説明する。弁・・ウジングは上ケー２１
２８と下ケース１２９で構成され、ガスの入口１３０か
ら室１３１を通り出口１３２へと流れる。出口１３２の
室１３１而には弁座１３３が形成しである。室１３１に
は平行した固定鉄心１３４と１３５があって上ケース１
２Ｂを貫通した外部で継鉄１３６でつながれてコ字型の
固定側磁気回路１３７を形成する。このコ字型と向がい
合う形で、これもほぼコ字型をした可動鉄心１３８がそ
の脚部１３９，１４０が固定鉄心１３４゜１３６の平坦
面１４１，１４２の上に当接し自由端１４３側が前記平
坦面１４１，１４２と接触又は離脱できるように設けら
れ、バネ１４４で常時は固定鉄心１３４ 、１３５から
離れる方向で且つ前述の弁座１３３に接近する方向へ附
勢されている。可動鉄心１３８の自由端１４３には弁コ
マ１４５が設けられ、バネ１４６で弁座１３３の方向に
力が加えられており、ピン１４７で抜は止めがなされて
いる。上ケース１２８を貫通する部分１４８ 、１４９
は固定鉄心１３４ 、１３５が円形：になっτいて０リ
ンダ１５０で気持シールされている。継鉄１３６には第
１コイル１１６と第２コイル１１６が右同されている（
＋コイルに通電するとげ動鉄心１３８の自由端１４３側
が固定鉄心１３４ 、１３Ｅ＞に吸引されて弁コマ１４
６は弁座１３３から離れ開弁状態となる。低重−力で作
動させ、１つ開弁状態を維持するには磁気回路として閉
じた状態はもちろん、開放状態でも磁気抵抗が少く、吸
引力が高く得られる構成が望まれる。この点、実施例で
は、磁気回路が開放状態（弁としては閉弁）でも固定鉄
心１３４ 、１３５の平坦面１４１．１４２と可動鉄心
１３Ｂの下半部１５１が広い面積で対向し、脚部１３９
、１４０は常時、接触しており、しかも、自由端１４
３に弁コマ１３６を設けることによって弁の動作ストロ
ークよりも磁気回路のギヤノブを少く設定するなど磁気
抵抗の減少化に有利である。°第１コイル１１６と第２
コイル１１８は分割しても重ねをきしても良い。ただ、
第２コイル１１８は電池１１６のパワーで閉弁から開弁
させる為のものであり、第１コイル１１６は開弁を維持
する為のもので、各々の電源と必要アンペアターンに応
じたコイル線径と巻数を設定する必要はある。本実施例
のように、コイル部がガス雰囲気外にあることは、単に
安全１生に富むだけでなく、コイルのスペースを自由に
１１られて低電力化が果しゃすくなるという効果もある
。An example thereof will be explained with reference to a sectional view of a pilot valve in FIG. 6 and a perspective view of a magnetic circuit in FIG. Valve...Using is upper case 21
28 and a lower case 129, gas flows from an inlet 130 through a chamber 131 to an outlet 132. A valve seat 133 is formed in the chamber 131 of the outlet 132 . The chamber 131 has parallel fixed cores 134 and 135, and the upper case 1
They are connected by a yoke 136 on the outside passing through 2B to form a U-shaped fixed side magnetic circuit 137. Opposing this U-shape, a movable core 138, which is also approximately U-shaped, has its legs 139, 140 in contact with the flat surfaces 141, 142 of the fixed core 134° 136, and its free end 143 side It is provided so as to be able to come into contact with or separate from the flat surfaces 141 and 142, and is normally biased by a spring 144 in a direction away from the fixed cores 134 and 135 and in a direction toward the aforementioned valve seat 133. A valve piece 145 is provided at the free end 143 of the movable iron core 138, a force is applied in the direction of the valve seat 133 by a spring 146, and the valve piece 145 is prevented from being removed by a pin 147. Portions 148 and 149 that pass through the upper case 128
The fixed cores 134 and 135 have a circular shape and are air-sealed with an O cylinder 150. The first coil 116 and the second coil 116 are arranged on the right side of the yoke 136 (
The free end 143 side of the barbed core 138 is attracted to the fixed cores 134 and 13E> and the valve piece 14 is energized.
6 separates from the valve seat 133 and enters the valve open state. In order to operate with low gravity and maintain one valve open, it is desirable to have a structure that provides a magnetic circuit with low magnetic resistance and high attractive force not only in the closed state but also in the open state. In this regard, in the embodiment, even when the magnetic circuit is in an open state (the valve is closed), the flat surfaces 141 and 142 of the fixed cores 134 and 135 and the lower half 151 of the movable core 13B face each other over a wide area, and the leg portions 139
, 140 are always in contact, and the free end 14
By providing the valve piece 136 at 3, it is advantageous to reduce magnetic resistance, such as by setting the gear knob of the magnetic circuit to be smaller than the operating stroke of the valve. °The first coil 116 and the second
The coil 118 may be divided or overlapped. just,
The second coil 118 is used to open the valve from closed using the power of the battery 116, and the first coil 116 is used to maintain the valve open.The coil wire diameter is adjusted according to each power supply and required amperage turns. It is necessary to set the number of turns. As in this embodiment, having the coil section outside the gas atmosphere not only improves safety, but also has the effect of freeing up space for the coil and making it easier to reduce power consumption.
さて、以上の各部分の働きを総合した本発明の燃焼制御
としての動作は次の通りである。通水によって主弁１０
３が開き同時に運転スイッチ１１３が切り換わり、それ
までチャージしていたコンデンサ１１７から放電がされ
てパイロット弁１０７は第２コイル１１８の励磁によっ
て開く。同時に点火電極１２０で火花が発生しパイロッ
トバーナ１０５は燃える。パイロット弁１０７が開いた
ら、圧力応動弁１０４でダイヤフラム１２２の差圧が変
化するので開弁され、主バーナも燃焼を開始する。パイ
ロット弁１０７が開くのと火花放電とは同時であるが、
圧力応動弁１０４が開くのは、ダイヤフラム１２２での
力関係が逆転するまでの間、）ずかではあるが遅れがあ
る。一方、コンデンサ１１７は放電と共に電圧が低下し
て、やがて点火器１１９は停電するし、パイロット弁１
０７の第２コイル１１８への通電も停止１−する。しか
し、この時には熱電対１１４の出力で第１コイル１１６
が励磁されているので燃焼は継続される。こうして、蛇
口を開いて通水するのみでガス側を操作することなく燃
焼を始動させることが出来る３、万一、点火ミスがあっ
た場合には、第１コイル１１６が励磁されないのでコン
デンサ１１７の放電終了と共にパイロット弁１ｏ７．圧
力応動弁１０４ともに閉じるので、それ以後の継続した
ガス放出はなくなる。電池が消耗した場合には、最初か
らパイロット弁１０７け開がないのでこれも安全側であ
る。熱電対１１４と第１コイル１１６０間に過熱防止ヒ
ユーズを挿入して熱交換器１１２の保護を行う通常の対
策を講じることも、もちろん可能である。Now, the operation of the combustion control of the present invention, which integrates the functions of the above-mentioned parts, is as follows. Main valve 10 by water flow
3 is opened, the operation switch 113 is switched at the same time, the capacitor 117 that had been charged up to that point is discharged, and the pilot valve 107 is opened by the excitation of the second coil 118. At the same time, sparks are generated at the ignition electrode 120 and the pilot burner 105 burns. When the pilot valve 107 opens, the pressure-responsive valve 104 changes the pressure difference across the diaphragm 122, so it is opened and the main burner also starts combustion. The pilot valve 107 opens and the spark discharge occurs at the same time,
There is a slight delay in opening of the pressure responsive valve 104 until the force relationship at the diaphragm 122 is reversed. On the other hand, the voltage of the capacitor 117 decreases as it discharges, and the igniter 119 eventually loses power, and the pilot valve 1
The energization to the second coil 118 of 07 is also stopped 1-. However, at this time, the output of the thermocouple 114 causes the first coil 116 to
is energized, combustion continues. In this way, combustion can be started without operating the gas side by simply opening the faucet and passing water. 3. In the unlikely event that there is an ignition error, the first coil 116 is not energized, so the capacitor 117 At the end of the discharge, the pilot valve 1o7. Since both pressure-responsive valves 104 are closed, there is no further continuous gas release. If the battery is exhausted, the pilot valve 107 will not be opened from the beginning, so this is also on the safe side. Of course, it is also possible to take the usual measures to protect the heat exchanger 112 by inserting an overheat protection fuse between the thermocouple 114 and the first coil 1160.
次に、圧力応動弁１０４ｉ７）他の実施例を第７図の断
面図によって説明する。主管路１０２の途中に設けられ
た弁ハウジングには弁座２０１が設けられ、これと対応
した弁ゴム２ｏ２の移動によって開閉される。弁座２０
１の上流側で弁ゴム２０２と反対側には弁座２０１の面
積とほぼ等しい有効面積を有するバランスダイヤフラム
２０３があって、主ダイヤフラム２０４の下面室２０５
と主管路１０２側とを区画している。下面室２０Ｉ５は
弁座２０１より上流側で主管路１０２とオリフィス１０
８でつながっており、下流側にはパイロット管１ｏ６．
パイロット弁１ｏアが接続される。主ダイヤフラム２０
４の上面室２０６はパイロット弁１０７の下流と連通し
ており、この中のスプリング２０７は主ダイヤフラム２
０４を下面室側へ押圧している。そして、弁ゴム２０２
とバランスタイヤフラム２０３と主ダイヤフラム２０４
ｉ；ｊ 同軸線上に配置され、三者は連動するように
結合している。今、パイロット弁１０７が閉じている時
をでは、オリフィス１０Ｂを通じて下面室２０６は供給
ガス圧が加わっており、上面室２０６は大気開放なので
この圧力差にょるカで弁ゴム２０２は弁座２０１に押し
つけられている。次に、パイイツト弁１０７が開くとパ
イロット管１０６にガスが流れオリフィス１０８による
圧力時ドで下面室２０５の圧力は低下する。一方、−１
−自室２０６には大気圧以、ヒのガス圧が加わり、この
結果、主ダイヤフラム２０４に作用する閉方向の力は激
減してスプリング２０７の力で弁は開かれることになる
。Next, another embodiment of the pressure-responsive valve 104i7) will be described with reference to the sectional view of FIG. A valve seat 201 is provided in the valve housing provided in the middle of the main pipeline 102, and is opened and closed by movement of the valve rubber 2o2 corresponding to the valve seat 201. Valve seat 20
On the upstream side of the main diaphragm 204 and on the side opposite to the valve rubber 202, there is a balance diaphragm 203 having an effective area approximately equal to the area of the valve seat 201.
and the main pipe 102 side. The lower chamber 20I5 is located upstream from the valve seat 201 and connects the main pipe 102 and the orifice 10.
8, and there is a pilot pipe 1o6 on the downstream side.
Pilot valve 1oA is connected. Main diaphragm 20
The upper chamber 206 of 4 communicates with the downstream side of the pilot valve 107, and the spring 207 therein communicates with the main diaphragm 2.
04 is pressed toward the lower chamber side. And valve rubber 202
and balance tire phragm 203 and main diaphragm 204
i; j They are arranged on a coaxial line, and the three parts are coupled to interlock. Now, when the pilot valve 107 is closed, the supply gas pressure is applied to the lower chamber 206 through the orifice 10B, and the upper chamber 206 is open to the atmosphere, so this pressure difference causes the valve rubber 202 to press against the valve seat 201. Being forced. Next, when the pilot valve 107 opens, gas flows into the pilot pipe 106 and the pressure in the lower chamber 205 decreases due to the pressure generated by the orifice 108. On the other hand, -1
- A gas pressure higher than atmospheric pressure is applied to the own chamber 206, and as a result, the force in the closing direction acting on the main diaphragm 204 is drastically reduced, and the valve is opened by the force of the spring 207.
すなわち、第３図の実施例と同様に、パイロット弁１０
７の開閉で主管路１０２の開閉が可能となったものであ
る。That is, similar to the embodiment of FIG. 3, the pilot valve 10
The main pipe 102 can be opened and closed by opening and closing 7.
以−１−１実施例にフ、（いて詳しく説明した、しうに
、主ｔＶ−１０３が開くと同時に切換わる運転スイッチ
１１３によって、電池１１６のパワーを一時的に点火器
１１９とパイロット弁１０７に供給してパイロットバー
ナ１０５を点火させ、パイロットバーナ１０５で加熱さ
れる熱電対１１４の出力でパイロット弁１０７を開弁維
持させると共に、パイロット弁１０７が挿入されている
パイロット管１０６の圧力変化によって主弁１０３下流
の圧力応動弁１０°４を開弁せしめ主バーナ１ｏ１で燃
焼を始めさせるものであるから、被加熱体である水が流
れることによって主弁１０３を開くよう構成することに
よって、蛇口の開閉のみで商用電源を用いることなく燃
焼の始動停止が可能となったものである。In the 1-1 embodiment below, the power of the battery 116 is temporarily applied to the igniter 119 and the pilot valve 107 by the operation switch 113, which is switched at the same time as the main tV-103 opens. The pilot burner 105 is ignited, and the output of the thermocouple 114 heated by the pilot burner 105 keeps the pilot valve 107 open, and the pressure change in the pilot pipe 106 into which the pilot valve 107 is inserted causes the main valve to open. Since the pressure-responsive valve 10°4 downstream of 103 is opened to start combustion in the main burner 1o1, by configuring the main valve 103 to open when water, which is an object to be heated, flows, the faucet can be opened and closed. This makes it possible to start and stop combustion without using a commercial power source.
本発明によれば、電池を使用するのは通水開始直後のご
く短時間であるから電池消費は少く出来るし、パイロッ
ト弁を開弁した後、熱電対の出力は開弁状態を維持する
のみであるから、従来のパイロット安全列置の熱電対に
比べ特別に高出力なものを用いる必要がない。又、主管
路は自然、管口径は大きくなるが、パイロット回路の圧
力変化で圧力応動弁を開閉せしめる間接的な方法なので
、従来のように主管路に直接挿入する場合に比べるとは
るかに低電力で良い。このことが電池消費が少くても本
燃焼制御装置が成立する原因であった。According to the present invention, battery consumption can be reduced because the battery is used for a very short time immediately after water flow starts, and after the pilot valve is opened, the thermocouple output only maintains the valve open state. Therefore, there is no need to use a particularly high output thermocouple compared to the conventional pilot safety array thermocouple. In addition, although the main pipe is natural and the pipe diameter is large, it is an indirect method that opens and closes the pressure-responsive valve based on pressure changes in the pilot circuit, so it requires much less power than the conventional method of directly inserting it into the main pipe. That's fine. This was the reason why the present combustion control device was successful even if the battery consumption was low.
更に、運転スイッチが切換わり後、パイロット弁が開く
と圧力応動弁がすぐに作動を開始して主バーナからも燃
焼をはじめるので、蛇口を開いてから湯になるまでの立
上り時間の短縮が図れるし、機器の設置直後には多く見
受けられるガス配管中の空気を早急に追い出すことも可
能である。上水すればパイロットバーナも消えるので無
駄なガスを節約できるだけでなく、パイロットバーナに
よる後？Ｊ１５きも防止ができる。Furthermore, when the pilot valve opens after the operation switch is switched, the pressure-responsive valve immediately starts operating and combustion starts from the main burner as well, reducing the time it takes for hot water to rise after opening the faucet. However, it is also possible to immediately expel the air in gas piping, which is often found immediately after equipment is installed. If you water the water, the pilot burner will also turn off, which not only saves wasted gas, but also allows the pilot burner to be turned off. J15 can be prevented.
第１図は商用電源を用いた従来のガス瞬間湯沸器におけ
るガスと水の回路構成図、第２図は本発明の一実施例で
あるガス瞬間湯沸器におけるガスと水と電気の回路構成
図、第３図は第２図に用いた圧力応動弁の断面図、第４
図は本発明による他の実施例の′心気回路図、第６図は
パイ！」ノド弁の一実施例を示す断面図、第６図は第６
図の例における磁気回路の斜視図、第７図は圧力応動弁
の他の実施例を示した断面図である。
１０１・・・・・・主バーナ、１ｏ２・・・・・・主管
路、１０３・・・・・主弁、１０４・・・・・・圧力応
動弁、１０５・・・・・・パイロットバーナ、１ｏ６・
・・・・・ハイロット管、１ｏ７パイロツト弁、１１４
・・・・・・熱電対、１１３・・・・・・運転スイッチ
、１１９・・・・・・点火器、１１６・・・・・・電池
、１１１・・・・・・水圧応動部、１１７・旧・・コン
デンサ。
代理人の氏名 弁理士 中 尾 敏 男 はが１名ＩＩ
図
！？
１２図
第３図
第５図
第６図
１１７図Figure 1 is a gas and water circuit configuration diagram of a conventional gas instantaneous water heater using a commercial power supply, and Figure 2 is a gas, water, and electricity circuit in a gas instantaneous water heater that is an embodiment of the present invention. The configuration diagram, Figure 3 is a sectional view of the pressure-responsive valve used in Figure 2, and Figure 4 is a cross-sectional view of the pressure-responsive valve used in Figure 2.
The figure is a 'cardiac circuit diagram of another embodiment of the present invention, and Figure 6 is a pie! "A sectional view showing one embodiment of the throat valve, FIG.
FIG. 7 is a perspective view of the magnetic circuit in the illustrated example, and a sectional view showing another embodiment of the pressure-responsive valve. 101...Main burner, 1o2...Main pipe, 103...Main valve, 104...Pressure responsive valve, 105...Pilot burner, 1o6・
...Hilot pipe, 1o7 pilot valve, 114
...Thermocouple, 113 ... Operation switch, 119 ... Igniter, 116 ... Battery, 111 ... Water pressure response part, 117・Old...Capacitor. Name of agent: Patent attorney Toshio Nakao Haga 1 person II
figure! ? Figure 12 Figure 3 Figure 5 Figure 6 Figure 117
Claims (1)
び圧力応動弁と、主弁と圧力応動弁の中間の主管路から
分岐しパイロットバーナに蚊るパイロット管の途中に設
けたパイロット弁と、パイロットバーナで加熱される熱
電対と、主弁の開閉に連動する運転スイッチと、点火器
並びに電池とを有し、運転スイッチ動作後しばらくの間
だけ通電される電池出力で点火器とパイロット弁を作動
させると共にパイロット弁には熱電対出力をも供給し、
圧力応動弁はパイロット管の圧力変化で作動することに
よって、主弁の開閉で自動的に燃焼の始動、停止を行う
燃焼制御装置。 ？）主弁は被加熱体の流量によって開閉される特許請求
の範囲第１項記載の燃焼制御装置。(1) A main valve and a pressure-responsive valve installed from the upstream side in the main pipe leading to the main burner, and a pilot pipe branched from the main pipe between the main valve and the pressure-responsive valve and connected to the pilot burner. It has a pilot valve, a thermocouple that is heated by a pilot burner, an operation switch that is linked to the opening and closing of the main valve, an igniter, and a battery, and the igniter uses battery output to energize only for a while after the operation switch is activated. actuates the pilot valve and also supplies thermocouple output to the pilot valve,
A pressure-responsive valve is a combustion control device that is activated by pressure changes in the pilot pipe and automatically starts and stops combustion by opening and closing the main valve. ? 2.) The combustion control device according to claim 1, wherein the main valve is opened and closed depending on the flow rate of the object to be heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57001470A JPS58117915A (en) | 1982-01-07 | 1982-01-07 | Combustion controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57001470A JPS58117915A (en) | 1982-01-07 | 1982-01-07 | Combustion controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58117915A true JPS58117915A (en) | 1983-07-13 |
| JPS6350611B2 JPS6350611B2 (en) | 1988-10-11 |
Family
ID=11502344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57001470A Granted JPS58117915A (en) | 1982-01-07 | 1982-01-07 | Combustion controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58117915A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105951U (en) * | 1983-12-26 | 1985-07-19 | パロマ工業株式会社 | Starting device for gas appliances |
| JPS60181571U (en) * | 1984-05-11 | 1985-12-02 | リンナイ株式会社 | Combustor combustion safety device |
| JPS611917A (en) * | 1984-06-14 | 1986-01-07 | Rinnai Corp | Combustion controller |
| JPS6126956U (en) * | 1984-07-19 | 1986-02-18 | リンナイ株式会社 | Combustion control device for gas appliances |
| EP0681147A1 (en) * | 1994-05-04 | 1995-11-08 | Robert Bosch Gmbh | Gas-fitted instantaneous water heater |
| EP0837283A1 (en) * | 1996-10-16 | 1998-04-22 | SIT LA PRECISA S.r.l. | An automatic control system with double safety protection for intermittently-operated gas burners |
-
1982
- 1982-01-07 JP JP57001470A patent/JPS58117915A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105951U (en) * | 1983-12-26 | 1985-07-19 | パロマ工業株式会社 | Starting device for gas appliances |
| JPS60181571U (en) * | 1984-05-11 | 1985-12-02 | リンナイ株式会社 | Combustor combustion safety device |
| JPS611917A (en) * | 1984-06-14 | 1986-01-07 | Rinnai Corp | Combustion controller |
| JPS6126956U (en) * | 1984-07-19 | 1986-02-18 | リンナイ株式会社 | Combustion control device for gas appliances |
| EP0681147A1 (en) * | 1994-05-04 | 1995-11-08 | Robert Bosch Gmbh | Gas-fitted instantaneous water heater |
| EP0837283A1 (en) * | 1996-10-16 | 1998-04-22 | SIT LA PRECISA S.r.l. | An automatic control system with double safety protection for intermittently-operated gas burners |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350611B2 (en) | 1988-10-11 |
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