JPH0718546B2 - Liquid Fuel Leakage Detector for Oil Combustor - Google Patents
Liquid Fuel Leakage Detector for Oil CombustorInfo
- Publication number
- JPH0718546B2 JPH0718546B2 JP62304491A JP30449187A JPH0718546B2 JP H0718546 B2 JPH0718546 B2 JP H0718546B2 JP 62304491 A JP62304491 A JP 62304491A JP 30449187 A JP30449187 A JP 30449187A JP H0718546 B2 JPH0718546 B2 JP H0718546B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- liquid level
- combustor
- tank
- valve
- 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 - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims description 33
- 239000000446 fuel Substances 0.000 title claims description 30
- 238000001514 detection method Methods 0.000 claims description 21
- 238000002485 combustion reaction Methods 0.000 claims description 18
- 239000002828 fuel tank Substances 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/18—Detecting fluid leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/06—Liquid fuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は主として学校その他の公共的な場所で使用する
石油ストーブその他の石油燃焼器に関する。TECHNICAL FIELD The present invention relates to an oil stove and other oil combustors mainly used in schools and other public places.
（従来の技術） 従来燃焼器とは別個に設けた燃料タンクから自然流下に
より燃料を燃焼器に供給するものであつて、該燃焼器と
ゴム管等の燃料供給管を介して連なる該燃料タンクの出
口に、燃焼器に設けた器具栓の開閉動作に連動して開閉
する開閉弁を設けたものは実開昭61−18347号公報に知
られる。(Prior Art) Fuel is supplied to a combustor from a fuel tank provided separately from a conventional combustor by gravity flow, and the fuel tank is connected to the combustor via a fuel supply pipe such as a rubber pipe. An opening / closing valve that opens / closes in conjunction with the opening / closing operation of an instrument plug provided in a combustor is known from Japanese Utility Model Laid-Open No. 61-18347.
（発明が解決しようとする問題点） しかしこのものでは遠隔操作による自動運転やタイマ点
火による運転の場合万一燃料供給管が破損しているのを
知らずに燃焼器を使用した場合の液体燃料洩れを防ぐこ
とが出来ず又燃料が洩れ出ている状態で使用することは
きわめて危険である。(Problems to be solved by the invention) However, in this case, liquid fuel leakage occurs when a combustor is used without knowing that the fuel supply pipe is damaged in the case of automatic operation by remote control or operation by timer ignition. Cannot be prevented and it is extremely dangerous to use it with fuel leaking out.
本発明はかゝる現状に鑑み燃料供給管の破損を自動的に
検出出来る装置を得ることをその目的とする。The present invention has been made in view of the above circumstances, and an object thereof is to obtain a device capable of automatically detecting a breakage of a fuel supply pipe.
（問題点を解決するための手段） 本発明はかゝる目的を達成するため、燃料流入口に器具
栓を備える燃焼器に、燃焼器とは別個に設けた燃料タン
クから燃料を供給するものであつて、該燃焼器とゴム管
等の燃料供給管を介して連なる該燃料タンクの出口に、
燃焼制御回路により開閉制御される開閉弁を設けたもの
に於いて、該開閉弁の下流側に補助タンクを設け、該補
助タンクに器具栓と該開閉弁の閉弁時に該補助タンクの
液面位置を検知する液面検知センサーを設け、該液面検
知センサーに液面の低下を検知した後は前記燃焼制御回
路によって、前記開閉弁を閉弁状態に保つことを特徴と
する。(Means for Solving the Problems) In order to achieve such an object, the present invention supplies fuel to a combustor having an instrument plug at a fuel inlet from a fuel tank provided separately from the combustor. At the outlet of the fuel tank connected to the combustor via a fuel supply pipe such as a rubber pipe,
An on-off valve that is controlled to open and close by a combustion control circuit, wherein an auxiliary tank is provided on the downstream side of the on-off valve, and an instrument plug and a liquid level of the auxiliary tank when the on-off valve is closed. A liquid level detection sensor for detecting a position is provided, and after the liquid level detection sensor detects a decrease in the liquid level, the combustion control circuit keeps the on-off valve closed.
（実施例） 図面は本発明実施の１例を示すもので、第１図で１はポ
ツトバーナ２を内蔵した燃焼器、３は該燃焼器１とは別
個に設けた灯油等の石油燃料タンクを示し、該燃料タン
ク３の出口3aには、燃焼運転回路４により開閉制御され
る開閉弁５として電磁弁を備え、該燃料タンク３からの
燃料はこれに連なるゴム管等の燃料供給管６、該燃料供
給管６に連なる油量調節器７並びにその下流の点火油路
付電磁弁８を介して該ポツトバーナ２に送られる。尚油
量調節器７は油量調節ダイヤル7aに連動して開弁度合を
３段に切換えられ且つ切位置で閉弁状態を保つ流量調節
機能を備える器具栓7bを備える。(Embodiment) The drawings show an embodiment of the present invention. In FIG. 1, 1 is a combustor with a built-in pot burner 2 and 3 is a petroleum fuel tank such as kerosene provided separately from the combustor 1. The outlet 3a of the fuel tank 3 is provided with an electromagnetic valve as an opening / closing valve 5 that is controlled to open / close by the combustion operation circuit 4, and the fuel from the fuel tank 3 is connected to a fuel supply pipe 6 such as a rubber pipe. It is sent to the pot burner 2 via an oil amount regulator 7 connected to the fuel supply pipe 6 and a solenoid valve 8 with an ignition oil passage downstream thereof. The oil amount adjuster 7 is provided with an instrument plug 7b having a flow rate adjusting function which can switch the valve opening degree in three stages in conjunction with the oil amount adjusting dial 7a and keeps the valve closed at the off position.
これまでの構成は従来知られているものと特に変るとこ
ろはない。The configuration so far is no different from the conventionally known configuration.
本発明はかゝるものに於いて、該開閉弁５の下流側に補
助タンク９を設け、該補助タンク９に該開閉弁５の閉弁
時に該補助タンク９の液面位置の減少を検知する液面検
知センサー10を設けたもので、前記燃焼制御回路４は、
第２図に示すごとく光電素子10aと受光素子10bと該受光
素子10bに光電素子10aからの光を受光したとき励磁する
リレーR1とを備えた液面検知回路11と該リレーR1の常閉
型リレー接点R1-1を介して電源に接続される燃焼制御回
路12とからなり、燃焼制御回路12は油量調節器７に設け
た油量調節ダイヤル7aに連動して開閉する第１スイツチ
S1並びにサーモスタツトStの常閉接点St1を介して前記
リレー接点R1-1に連なる点火器13と、該サーモスタツト
Stの常閉接点St2を介して該第１スイツチS1に連なるリ
レーコイルR2と、油量調節器７の下流に設けた前記バイ
パス路電磁弁８と、これらと並列に該第１スイツチS1に
連なる燃焼用空気供給フアンＭとを備えると共に、該油
量調節ダイヤル7aに連動して開閉する第２スイツチS2を
介して前記リレー接点R1-1に連なる第２の電磁弁５のコ
イル5aとこれと並列のリレーコイルR3とを備えて成り、
該リレーコイルR3の常閉型リレー接点r3-1を前記液面検
知センサー回路11に介入させておく。尚同図に於いてR
2-1は第１スイツチS1を短絡させるごとく燃焼制御回路1
2に介在させたリレーコイルR2の自己保持接点、FSは押
ボタン式の通気スイツチを示す。In the present invention, an auxiliary tank 9 is provided on the downstream side of the on-off valve 5, and when the on-off valve 5 is closed, the auxiliary tank 9 detects a decrease in the liquid surface position of the auxiliary tank 9. Which is provided with a liquid level detection sensor 10 for
Second photoelectric element 10a and the light receiving element 10b as shown in figure and the light receiving element 10b to the photoelectric element the liquid level detection circuit 11 and a relay R 1 is excited upon receiving the light from 10a and the relay R 1 in the normal A combustion control circuit 12 connected to a power source through a closed relay contact R 1-1 . The combustion control circuit 12 opens and closes in conjunction with an oil amount adjustment dial 7a provided in an oil amount controller 1. Switch
An igniter 13 connected to the relay contact R 1-1 through S 1 and a normally closed contact St 1 of the thermostat St, and the thermostat.
A relay coil R 2 connected to the first switch S 1 via a normally closed contact St 2 of St, the bypass passage solenoid valve 8 provided downstream of the oil amount regulator 7, and the first switch in parallel with these. A second solenoid valve 5 which is connected to the relay contact R 1-1 through a second switch S 2 which is provided with a combustion air supply fan M connected to S 1 and which opens and closes in conjunction with the oil amount adjustment dial 7a. And a relay coil R 3 in parallel therewith,
The normally closed relay contact r 3-1 of the relay coil R 3 is intervened in the liquid level detection sensor circuit 11. In the figure, R
2-1 is a combustion control circuit 1 as if the first switch S 1 is short-circuited.
A self-holding contact of the relay coil R 2 interposed between the two and FS is a push button type ventilation switch.
尚図面でSWは燃料タンク３並びに補助タンク９への給油
時に手動で押開かれる液面検知回路11に介在させた常閉
型のスイツチを示す。In the drawing, SW indicates a normally closed type switch interposed in a liquid level detection circuit 11 which is manually pushed open when refueling the fuel tank 3 and the auxiliary tank 9.
（作用） 次に本装置の作動を第２図に示す燃焼運転回路４に沿つ
て説明する。(Operation) Next, the operation of the present apparatus will be described along with the combustion operation circuit 4 shown in FIG.
今通気スイツチFSを閉じ次いで油量調節ダイヤル7aを回
動操作するときは、その操作度合に応じて器具栓7bが開
くと共に該スイツチS1、S2を閉じる。これによつて点火
器13が作動し、電磁弁５が開弁する。このためポツトバ
ーナ２に燃料が供給されると共に燃焼用空気送風フアン
Ｍが駆動される。尚このときバイパス路付電磁弁８は閉
弁状態に保たれているため該ポツトバーナ２には該バイ
パス路を介しての制限された燃料が供給され、その燃料
が点火器13により加熱されて着火燃焼する。そしてその
燃焼により燃焼器１の温度が上昇するとサーモスタツド
Stのその常開接点St2側に切換る。これによりバイパス
路付電磁弁８が開弁しこれによつて油量調節ダイヤル7a
に設定した油量がポツトバーナ２に供給されて通常運転
に移行すると共にリレーコイルR2の励磁によりその自己
保持接点R2-1を自己保持する。Now, when the ventilation switch FS is closed and then the oil amount adjusting dial 7a is rotated, the instrument plug 7b is opened and the switches S 1 and S 2 are closed according to the operation degree. As a result, the igniter 13 operates and the solenoid valve 5 opens. Therefore, fuel is supplied to the pot burner 2 and the combustion air blowing fan M is driven. At this time, since the solenoid valve 8 with the bypass passage is kept closed, the limited fuel is supplied to the pot burner 2 through the bypass passage, and the fuel is heated by the igniter 13 and ignited. To burn. When the temperature of the combustor 1 rises due to the combustion, the thermostat
Switch to the normally open contact St 2 side of St. As a result, the solenoid valve 8 with a bypass is opened, which causes the oil amount adjustment dial 7a to be opened.
The amount of oil set at is supplied to the pot burner 2 to shift to normal operation, and the self-holding contact R 2-1 is self-held by exciting the relay coil R 2 .
消火するには、油量調節ダイヤル7aを切位置に回動操作
すれば、油量調節弁7bが閉じてポツトバーナ２への燃料
の供給が断たれると共に第１スイツチS1並びに第２スイ
ツチS2が開かれる。このため電磁弁５は直ちに閉じられ
る。尚燃焼器２の温度が高い場合には、サーモスタツド
Stが常開接点St2側に切換つた状態を保つためリレーコ
イルR2は励磁状態を保ちその自己保持接点R2-1を介して
バイパス路付電磁弁８のコイル8aに通電されるため、該
バイパス路付電磁弁８は開弁状態を保ち、燃焼器２の温
度の低下と共にサーモスタツドStが常閉接点St1側に切
換つて始めて閉弁状態に復帰する。To extinguish the fire, the oil amount adjusting dial 7a is rotated to the off position, the oil amount adjusting valve 7b is closed, the fuel supply to the pot burner 2 is cut off, and the first switch S 1 and the second switch S 2 is opened. Therefore, the solenoid valve 5 is immediately closed. If the temperature of the combustor 2 is high, the thermostat
In order to keep the state that St is switched to the normally open contact St 2 side, the relay coil R 2 is kept in the excited state and the coil 8a of the solenoid valve 8 with bypass path is energized via its self-holding contact R 2-1 . The solenoid valve 8 with the bypass passage is kept open, and the thermostat St is switched to the normally closed contact St 1 side as the temperature of the combustor 2 is lowered, and then the closed state is restored.
そして該操作ダイヤル7aの止位置への操作と同時に液面
検知回路11に介在させたリレーR3のリレー接点R3-1が閉
じて、該回路11を作動状態に保つ。Then the manipulation closes relay contacts R 3-1 of the relay R 3 which is interposed liquid level detection circuit 11 concurrently with the operation to stop the position of the dial 7a, keep the circuit 11 in operation.
このため不使用時間が長くこの間に何らかの原因でゴム
管等の燃料供給管等の燃料供給路６に油洩れがあると急
激に補助タンク９の液面が下り、リレーコイルR1が励磁
されて、燃焼制御回路12に介在させたそのリレー接点R
1-1を開く。このため油量調節器７に設けた油量調節ダ
イヤル7aを操作しても該燃焼制御回路12が作動しない。
従つて電磁弁５も開弁しない。従つて燃焼器具は運転開
始せず又該燃料供給路６の損傷等によつて大量の燃料が
洩れ出るの不具合を生じない。Therefore, if there is an oil leak in the fuel supply passage 6 such as the fuel supply pipe such as a rubber pipe for some reason during the non-use time, the liquid level in the auxiliary tank 9 will suddenly drop and the relay coil R 1 will be excited. , Its relay contact R interposed in the combustion control circuit 12
Open 1-1 . Therefore, even if the oil amount adjusting dial 7a provided on the oil amount adjuster 7 is operated, the combustion control circuit 12 does not operate.
Therefore, the solenoid valve 5 also does not open. Therefore, the burner does not start operation, and there is no problem that a large amount of fuel leaks out due to damage of the fuel supply path 6.
尚第２図に示すごとく前記リレーコイルR1の励磁により
閉じるリレー接点R1-2を介入させたブサー等の報知回路
14を設ければ、該損傷等を警報させることも出来る。Incidentally, as shown in FIG. 2, a notification circuit such as a buser having a relay contact R 1-2 which is closed by exciting the relay coil R 1
If 14 is provided, it is possible to give an alarm for the damage.
又液面検知回路11に第２図に示すものは、光電型の液面
検知センサー10を用いた場合の実施例を示すが、これは
第３図に示すごとくダイヤフラムを用いて燃料液面の高
さを圧力の変化で取らえる圧力検出型の液面検知センサ
ー10を用い、又は第４図に示すごとくフロートスイツチ
15を用いて液面高さ位置を検知する液面検知センサー10
とすることも出来更にマイクロコンピュータ（図示しな
い）と液面検知センサー10との組合せによつて該液体燃
料洩れを検出することが出来ること申すまでもない。The liquid level detection circuit 11 shown in FIG. 2 shows an embodiment in which a photoelectric type liquid level detection sensor 10 is used. This is shown in FIG. A pressure detection type liquid level detection sensor 10 which can detect the height by a change in pressure is used, or as shown in FIG. 4, a float switch is used.
Liquid level detection sensor 10 that detects the liquid level height position using 15
Needless to say, the liquid fuel leak can be detected by a combination of a microcomputer (not shown) and the liquid level detection sensor 10.
更に第１図に示す実施例では主タンク３に接近させて補
助タンク９を設けたが、これは第５図並びに第６図に示
すごとく地下タンクと中継タンクと個別タンクとを備え
て各燃焼器１に液体燃料を供給するような場合該中継タ
ンクを主タンク３とし個別タンクを補助タンク９に当て
該補助タンク９に液面検知センサー10を設け、該個別タ
ンクの液面の減少から燃料洩れを検出するようにするこ
とも出来る。Further, in the embodiment shown in FIG. 1, the auxiliary tank 9 is provided close to the main tank 3, but this is equipped with an underground tank, a relay tank and an individual tank as shown in FIGS. When liquid fuel is supplied to the container 1, the relay tank is used as the main tank 3, the individual tank is applied to the auxiliary tank 9, and the auxiliary tank 9 is provided with a liquid level detection sensor 10. Leakage can also be detected.
（発明の効果） このように本発明によるときは、開閉弁の下流側に補助
タンクを設け、該補助タンクに器具栓と該開閉弁との閉
弁時に該補助タンクの液面位置を検知する液面検知セン
サーを設け、該液面検知センサーに液面の低下を検知し
た後は前記燃焼制御回路を不作動状態に保つようにした
ので、燃料供給管が損傷し燃料の流出があつた場合、必
ず燃焼制御回路は不作動となりこれによつて前記開閉弁
が開くようなことがなく、大量の燃料が流出するの不具
合を完全に防ぎ得られ、特に遠隔操作による自動運転や
タイマ点火により運転される場合に適用して特に有利で
あるの効果がある。(Effects of the Invention) As described above, according to the present invention, the auxiliary tank is provided on the downstream side of the opening / closing valve, and the liquid level position of the auxiliary tank is detected when the instrument stopper and the opening / closing valve are closed in the auxiliary tank. When the liquid level detection sensor is provided and the combustion control circuit is kept inactive after the liquid level detection sensor detects a decrease in the liquid level, when the fuel supply pipe is damaged and fuel flows out. , The combustion control circuit is always inoperative, which prevents the on-off valve from opening, and it is possible to completely prevent the problem of a large amount of fuel flowing out. Especially, it is operated by remote operation of automatic operation or timer ignition. The effect is particularly advantageous when applied.
図面で第１図は本発明実施の１例を示す説明図、第２図
はその燃焼制御回路図、第３図並びに第４図は液面検知
回路の変形例、第５図は他の実施例を示す説明図、第６
図はその一部の詳細図である。 １……燃焼器、３……燃料タンク ４……燃焼制御回路、５……電磁弁 ６……燃料供給管、10……液面検知センサーIn the drawings, FIG. 1 is an explanatory view showing an embodiment of the present invention, FIG. 2 is a combustion control circuit diagram thereof, FIGS. 3 and 4 are modifications of a liquid level detection circuit, and FIG. 5 is another embodiment. Explanatory drawing which shows an example, 6th
The figure is a detailed view of a part thereof. 1 ... Combustor, 3 ... Fuel tank 4 ... Combustion control circuit, 5 ... Solenoid valve 6 ... Fuel supply pipe, 10 ... Liquid level detection sensor
Claims (1)
燃焼器とは別個に設けた燃料タンクから燃料を供給する
ものであって、該燃焼器とゴム管等の燃料供給管を介し
て連なる該燃料タンクの出口に、燃焼制御回路により開
閉制御される開閉弁を設けたものに於いて、該開閉弁の
下流側に補助タンクを設け、該補助タンクに器具栓と該
開閉弁との閉弁時に該補助タンクの液面位置を検知する
液面検知センサーを設け、該液面検知センサーに液面の
低下を検知した後は前記燃焼制御回路によって、前記開
閉弁を閉弁状態に保つことを特徴とする石油燃焼器に於
ける液体燃料洩れ検出装置。1. A fuel tank for supplying fuel to a combustor having an instrument plug at a fuel inlet, the fuel tank being provided separately from the combustor. An opening / closing valve controlled to open / close by a combustion control circuit is provided at the outlet of the fuel tank connected through the auxiliary tank on the downstream side of the opening / closing valve, and an instrument plug and the opening / closing valve are provided in the auxiliary tank. A liquid level detection sensor is provided to detect the liquid level position of the auxiliary tank when the valve is closed, and after the liquid level detection sensor detects a drop in the liquid level, the combustion control circuit closes the on-off valve. A liquid fuel leak detection device for an oil combustor, characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62304491A JPH0718546B2 (en) | 1987-12-03 | 1987-12-03 | Liquid Fuel Leakage Detector for Oil Combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62304491A JPH0718546B2 (en) | 1987-12-03 | 1987-12-03 | Liquid Fuel Leakage Detector for Oil Combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01147216A JPH01147216A (en) | 1989-06-08 |
| JPH0718546B2 true JPH0718546B2 (en) | 1995-03-06 |
Family
ID=17933672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62304491A Expired - Fee Related JPH0718546B2 (en) | 1987-12-03 | 1987-12-03 | Liquid Fuel Leakage Detector for Oil Combustor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718546B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS619255Y2 (en) * | 1977-03-30 | 1986-03-24 | ||
| JPS6118347U (en) * | 1984-06-30 | 1986-02-03 | サンポツト株式会社 | oil burner |
-
1987
- 1987-12-03 JP JP62304491A patent/JPH0718546B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01147216A (en) | 1989-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |