JPH07208727A - Fuel supplying device for combustion device - Google Patents
Fuel supplying device for combustion deviceInfo
- Publication number
- JPH07208727A JPH07208727A JP1593594A JP1593594A JPH07208727A JP H07208727 A JPH07208727 A JP H07208727A JP 1593594 A JP1593594 A JP 1593594A JP 1593594 A JP1593594 A JP 1593594A JP H07208727 A JPH07208727 A JP H07208727A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- fuel
- waste oil
- waste
- fuel oil
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 61
- 239000000446 fuel Substances 0.000 title claims abstract description 35
- 239000003921 oil Substances 0.000 claims abstract description 163
- 239000002699 waste material Substances 0.000 claims abstract description 125
- 239000000295 fuel oil Substances 0.000 claims abstract description 88
- 238000002347 injection Methods 0.000 claims description 34
- 239000007924 injection Substances 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000003350 kerosene Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 130
- 239000007921 spray Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Landscapes
- Feeding And Controlling Fuel (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はボイラや燃焼炉等に使用
される廃油燃焼装置の燃料供給装置に関し、主に植物性
油の廃油（以下、「廃油」と称する）を燃焼して利用
し、燃料油（主に灯油やＡ重油）と廃油又は混合油（廃
油と燃料油）を切り換えて供給することが可能な燃焼装
置の燃料供給装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel supply device for a waste oil combustion device used in a boiler, a combustion furnace, etc., and mainly uses waste oil of vegetable oil (hereinafter referred to as "waste oil") by burning. The present invention relates to a fuel supply device of a combustion device capable of switching and supplying fuel oil (mainly kerosene or heavy oil A) and waste oil or mixed oil (waste oil and fuel oil).
【０００２】[0002]
【従来技術】従来、廃油燃焼は次の方法で行われてい
た。 重油用バーナと廃油バーナとを併用し、重油の助燃に
よって廃油を燃焼する方法。 予め重油と廃油を混合し、混合油をバーナで燃焼する
方法。2. Description of the Related Art Conventionally, waste oil combustion has been performed by the following method. A method in which a burner for heavy oil and a waste oil burner are used together, and waste oil is burned by auxiliary combustion of heavy oil. A method in which heavy oil and waste oil are mixed in advance and the mixed oil is burned with a burner.
【０００３】上記の方法は燃焼装置が２つ必要とな
り、設備費の増加及び運転管理にも多くの労力を要す
る。また、の方法は重油と廃油が配管途中で分離を起
さないようにする方法が必要であり、またどちらか一方
の燃料が供給できなくなった場合には、運転できなくな
る場合がある。The above method requires two combustion devices, which requires a large amount of labor to increase the facility cost and manage the operation. In addition, the method of (1) requires a method of preventing heavy oil and waste oil from being separated from each other in the middle of the piping, and when one of the fuels cannot be supplied, the operation may not be possible.
【０００４】[0004]
【発明が解決しようとする課題】近年、産業廃棄物に対
する規制も強化され、植物性油等の廃油の処理にもコス
トが必要となってきている。廃油をボイラの燃焼装置の
燃料として簡単に利用できればメリットは大きいが、従
来の廃油燃焼には上記のような欠点がある。また廃油量
は常に一定ではなく、変動する場合が一般的である。ボ
イラ等の燃焼装置で廃油を燃焼させる場合、ボイラの運
転に合わせて廃油を燃焼させることから、廃油が無くな
ってもボイラの運転は継続できることが必要条件であ
る。同一の装置で燃料油と廃油を自動的に切換えて燃焼
できる廃油燃焼装置の燃料供給装置が要望されている
が、これを満足できるものがないというのが現状であ
る。In recent years, regulations on industrial waste have been tightened, and it has become necessary to treat waste oil such as vegetable oil at high cost. If waste oil can be easily used as fuel for a boiler combustion device, there are great advantages, but conventional waste oil combustion has the above-mentioned drawbacks. In addition, the amount of waste oil is not always constant, but generally fluctuates. When the waste oil is burned by a combustion device such as a boiler, the waste oil is burned according to the operation of the boiler. Therefore, it is a necessary condition that the operation of the boiler can be continued even when the waste oil is exhausted. There is a demand for a fuel supply device for a waste oil combustion device that can automatically switch between fuel oil and waste oil for combustion in the same device, but there is no one that can satisfy this.
【０００５】本発明は上述の点に鑑みてなされたもの
で、一つの燃焼装置に、廃油と燃料油を連続して供給
し、燃焼させることができ、且つコンパクトな燃焼装置
の燃料供給装置を提供することを目的とする。The present invention has been made in view of the above points, and provides a compact fuel supply device for a combustion device capable of continuously supplying and burning waste oil and fuel oil to one combustion device. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
本発明は、燃焼装置に廃油及び／又は燃料油を供給する
燃料供給装置であって、図１に示すように燃焼装置（ボ
イラ２４）に出口が接続された３方向切換弁（１０）
と、廃油サービスタンク（３）からストレーナ（６）と
混合油ポンプ（７）と加熱装置（８）とミキサー（９）
を経由して分岐する配管の一方を３方向切換弁（１０）
の第１の入口（ａ）に接続する廃油供給路と、該分岐す
る配管のもう一方を混合油ポンプ（７）の吸引側に接続
する循環路と、燃料油タンク（１３）からストレーナ
（１４）を経由して分岐する配管の一方を３方向切換弁
（１０）の第２の入口（ｂ）に接続する燃料油供給路
と、該分岐する配管のもう一方を燃料油注入ポンプ（１
５）と注入電磁弁（１６−Ｌ，１６−Ｈ）と流量調整オ
リフィス（１７，１７）を経由して混合油ポンプ（７）
の吸引口に接続する燃料油注入路とを具備し、廃油サー
ビスタンク（３）の油量が規定値以上であり廃油供給路
の廃油の温度が設定温度以上の場合に廃油供給路から３
方向切換弁（１０）を介して燃焼装置に廃油を供給し、
廃油の性状によっては燃料油注入路から一定割合の燃料
油を廃油に注入してなる混合油を廃油供給路から３方向
切換弁（１０）を介して燃焼装置に供給し、廃油サービ
スタンク（３）の油量が少ない場合に３方向切換弁（１
０）を切換えて燃料油を燃料油供給路から供給する制御
手段（制御盤１９）を具備することを特徴とする。In order to solve the above problems, the present invention is a fuel supply device for supplying waste oil and / or fuel oil to a combustion device, and as shown in FIG. 1, the combustion device (boiler 24). 3-way switching valve (10) with outlet connected to
From the waste oil service tank (3) to the strainer (6), mixed oil pump (7), heating device (8) and mixer (9)
One side of the pipe branched via the three-way switching valve (10)
The waste oil supply passage connected to the first inlet (a) of the fuel oil, the circulation passage connecting the other end of the branched pipe to the suction side of the mixed oil pump (7), the fuel oil tank (13) to the strainer (14). ) Is connected to the second inlet (b) of the three-way switching valve (10), and the other side of the branched pipe is connected to the fuel oil injection pump (1).
5), injection solenoid valve (16-L, 16-H) and flow rate adjusting orifice (17, 17), and mixed oil pump (7)
And a fuel oil injection path connected to the suction port of the waste oil service tank (3), if the amount of oil in the waste oil service tank (3) is equal to or greater than a specified value and the temperature of the waste oil in the waste oil supply path is equal to or higher than a set temperature, 3
Supply waste oil to the combustion device via the directional control valve (10),
Depending on the properties of the waste oil, a mixed oil obtained by injecting a certain proportion of fuel oil into the waste oil from the fuel oil injection path is supplied from the waste oil supply path to the combustion device via the three-way switching valve (10), and the waste oil service tank (3 ) When the amount of oil is small, a 3-way switching valve (1
0) is switched to supply the fuel oil from the fuel oil supply passage, the control means (control panel 19) is provided.
【０００７】また、図２及び図３に示すように、燃料油
注入ポンプ（１５）と注入電磁弁（１６−Ｌ，１６−
Ｈ）と流量調整オリフィス（１７，１７）を経由して混
合油ポンプ（７）の吸引口に接続する燃料油注入路を複
数設け複数台の燃焼装置（ボイラ２４，２４’）に廃油
及び／又は燃料油を供給することを特徴とする。As shown in FIGS. 2 and 3, the fuel oil injection pump (15) and the injection solenoid valves (16-L, 16-).
H) and the flow rate adjusting orifices (17, 17), and a plurality of fuel oil injection paths connected to the suction port of the mixed oil pump (7) are provided, and waste oil and / or waste oil is supplied to a plurality of combustion devices (boilers 24, 24 '). Alternatively, the fuel oil is supplied.
【０００８】[0008]
【作用】本発明は上記構成を採用することにより、制御
手段（制御盤１９）は廃油サービスタンク（３）の油量
が規定値以上であり廃油供給路の廃油の温度が設定温度
以上の場合に廃油供給路から３方向切換弁（１０）を介
して燃焼装置に廃油を供給し、廃油の性状によっては燃
料油注入路から一定割合の燃料油を廃油に注入してなる
混合油を廃油供給路から３方向切換弁（１０）を介して
燃焼装置に供給し、廃油サービスタンク（３）の油量が
少ない場合に３方向切換弁（１０）を切換えて燃料油を
燃料油供給路から供給するから、廃油と燃料油の切換が
燃焼装置を停止することなく自動的に行うことができ
る。According to the present invention, by adopting the above-mentioned configuration, the control means (control panel 19) is configured so that the amount of oil in the waste oil service tank (3) is equal to or more than the specified value and the temperature of the waste oil in the waste oil supply path is equal to or higher than the set temperature. The waste oil is supplied from the waste oil supply passage to the combustion device through the three-way switching valve (10), and depending on the property of the waste oil, a mixed oil obtained by injecting a fixed proportion of fuel oil into the waste oil is supplied from the fuel oil injection passage. Is supplied to the combustion device from the passage through the three-way switching valve (10), and when the amount of oil in the waste oil service tank (3) is small, the three-way switching valve (10) is switched to supply the fuel oil from the fuel oil supply passage. Therefore, the switching between the waste oil and the fuel oil can be automatically performed without stopping the combustion device.
【０００９】燃焼量に対して、混合油ポンプ（７）の吐
出容量を大きくするので、循環路の循環により廃油と燃
料油の混合が促進され、又は廃油の性状によっては廃油
供給路の加熱装置（８）で予め加熱を行うので常に安定
した着火及び燃焼が可能となる。Since the discharge capacity of the mixed oil pump (7) is increased with respect to the combustion amount, the circulation of the circulation passage promotes the mixing of the waste oil and the fuel oil, or the heating device of the waste oil supply passage depending on the property of the waste oil. Since heating is performed in advance in (8), stable ignition and combustion are always possible.
【００１０】[0010]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は本発明の燃焼装置の燃料供給装置の構成を
示す図である。本実施例では燃料装置はボイラのバーナ
等からなる燃焼装置を例に説明する。図１において、１
は廃油を収容する廃油タンク、１３は燃料油を収容する
燃料油タンク、２０は燃料供給装置、２４はボイラであ
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a fuel supply device of a combustion device of the present invention. In this embodiment, the fuel device will be described by taking a combustion device including a burner of a boiler as an example. In FIG. 1, 1
Is a waste oil tank for storing waste oil, 13 is a fuel oil tank for storing fuel oil, 20 is a fuel supply device, and 24 is a boiler.
【００１１】廃油は廃油タンク１から移送ポンプ２で廃
油サービスタンク３に供給される。該廃油サービスタン
ク３内の廃油量はレベルスイッチ５，５で検知され、そ
の検知信号を制御盤１９に伝送する。廃油サービスタン
ク３に供給された廃油は、該廃油サービスタンク３内で
沈殿する沈殿物を分離し、廃油サービスタンク３内に配
置されたストレーナ４で１次濾過される。Waste oil is supplied from the waste oil tank 1 to the waste oil service tank 3 by the transfer pump 2. The amount of waste oil in the waste oil service tank 3 is detected by the level switches 5 and 5, and the detection signal is transmitted to the control panel 19. The waste oil supplied to the waste oil service tank 3 separates a precipitate that precipitates in the waste oil service tank 3 and is primarily filtered by a strainer 4 arranged in the waste oil service tank 3.
【００１２】燃料供給装置２０はボイラ２４の噴燃ポン
プに出口が接続された３方向切換弁１０と、廃油サービ
スタンク３からストレーナ６、混合油ポンプ７、加熱装
置８、ミキサー９を経由して分岐する配管の一方を３方
向切換弁１０の第１の入口ａに接続する廃油供給路と、
分岐する配管のもう一方を圧力スイッチ１１、温度検出
器１２を経由して混合油ポンプ７の吸引側に接続する循
環路と、燃料油タンク１３からストレーナ１４を経由し
て分岐する配管の一方を逆止弁１８を通して３方向切換
弁１０の第２の入口ｂに接続する燃料油供給路と、分岐
する配管のもう一方を燃料油注入ポンプ１５と注入電磁
弁１６−Ｌ，１６−Ｈ、逆止弁１８，１８及び流量調整
オリフィス１７，１７を経由して混合油ポンプ７の吸引
口に接続する燃料油注入路と、各部を制御する制御盤１
９を具備する。The fuel supply device 20 is provided with a three-way switching valve 10 having an outlet connected to an injection pump of a boiler 24, a waste oil service tank 3 through a strainer 6, a mixed oil pump 7, a heating device 8 and a mixer 9. A waste oil supply path that connects one of the branched pipes to the first inlet a of the three-way switching valve 10,
A circulation path connecting the other branching pipe to the suction side of the mixed oil pump 7 via the pressure switch 11 and the temperature detector 12, and one of the piping branching from the fuel oil tank 13 via the strainer 14. The fuel oil supply passage connected to the second inlet b of the three-way switching valve 10 through the check valve 18 and the other branching pipe are connected to the fuel oil injection pump 15 and the injection solenoid valves 16-L, 16-H, and the reverse valve. A fuel oil injection path connected to the suction port of the mixed oil pump 7 via the stop valves 18, 18 and the flow rate adjusting orifices 17, 17, and a control panel 1 for controlling each part.
9 is provided.
【００１３】燃料供給装置２０の制御盤１９に電源が投
入されると、混合油ポンプ７及び加熱装置８が起動し、
廃油（廃油＋燃料油）は、混合油ポンプ７→加熱装置８
→ミキサー９→混合油ポンプ７の経路（廃油循環路）を
循環しながら加温される。以下、運転手順に従って各動
作を説明する。When the control panel 19 of the fuel supply device 20 is turned on, the mixed oil pump 7 and the heating device 8 are activated,
Waste oil (waste oil + fuel oil) is mixed oil pump 7 → heating device 8
→ Mixer 9 → Warm while circulating through the path (waste oil circulation path) of the mixed oil pump 7. Hereinafter, each operation will be described according to the operating procedure.
【００１４】廃油の液温が温度検出器１２により検出さ
れ、該検出温度が設定温度以下の場合は、３方向切換弁
１０は制御盤１９の制御により、燃料油タンク１３から
の燃料油を供給する上記燃料油供給路が接続された第２
の入口ｂが開となって、ボイラ２４の燃焼信号により、
燃料油はストレーナ１４、逆止弁１８及び３方向切換弁
１０を通って噴燃ポンプ２１からボイラ２４のバーナ２
３に供給され、燃焼が開始する。When the liquid temperature of the waste oil is detected by the temperature detector 12, and the detected temperature is below the set temperature, the three-way switching valve 10 supplies the fuel oil from the fuel oil tank 13 under the control of the control panel 19. The second fuel oil supply path is connected to the second
The inlet b of is opened and the combustion signal of the boiler 24 causes
The fuel oil passes through the strainer 14, the check valve 18 and the three-way switching valve 10 to the burner 2 of the boiler 24 from the fuel injection pump 21.
3 is supplied and combustion is started.
【００１５】温度検出器１２により検出された廃油の温
度が設定温度に達すれば、３方向切換弁１０は廃油サー
ビスタンク３からの廃油がボイラ２４に流れる上記廃油
供給路が接続された第１の入口ａが開となり、ボイラ２
４の燃焼信号により、燃料油が燃料油注入ポンプ１５、
注入電磁弁１６−Ｌ、逆止弁１８、流量調整オリフィス
１７から調整バルブ２６を通って混合油ポンプ７に流れ
る。廃油（燃料油＋廃油）は混合油ポンプ７、加熱装置
８、ミキサー９を通って、一部は３方向切換弁１０、噴
燃ポンプ２１、電磁弁２２−Ｌ、ボイラ２４のバーナ２
３に供給され噴霧・燃焼する。残りは調整バルブ２６を
通って混合油ポンプ７に戻り、循環混合される。When the temperature of the waste oil detected by the temperature detector 12 reaches the set temperature, the three-way switching valve 10 is connected to the first waste oil supply passage to which the waste oil from the waste oil service tank 3 flows to the boiler 24. The inlet a is open and the boiler 2
According to the combustion signal of 4, the fuel oil is pumped by the fuel oil injection pump 15,
The injection solenoid valve 16-L, the check valve 18, and the flow rate adjusting orifice 17 flow through the adjusting valve 26 to the mixed oil pump 7. Waste oil (fuel oil + waste oil) passes through the mixed oil pump 7, the heating device 8, and the mixer 9, and a part of the three-way switching valve 10, the fuel injection pump 21, the solenoid valve 22-L, and the burner 2 of the boiler 24.
3 is supplied and sprayed and burned. The rest returns to the mixed oil pump 7 through the adjusting valve 26 and is circulated and mixed.
【００１６】上記廃油燃焼の場合、バーナ２３からの噴
霧量Ｑは次式で表される。 Ｑ＝Ｑ１＋Ｑ２ 但し、Ｑ１は燃料油注入路から循環回路に注入される燃
料油量、Ｑ２は廃油サービスタンク３から供給される廃
油量である。燃料油量は燃料油注入ポンプ１５の吐出圧
力と流量調整オリフィス１７の組合せにより定まり、廃
油燃焼中は常に一定量が高圧で廃油循環路に注入され
る。In the case of the above waste oil combustion, the spray amount Q from the burner 23 is expressed by the following equation. Q = Q1 + Q2 where Q1 is the amount of fuel oil injected into the circulation circuit from the fuel oil injection path, and Q2 is the amount of waste oil supplied from the waste oil service tank 3. The amount of fuel oil is determined by the combination of the discharge pressure of the fuel oil injection pump 15 and the flow rate adjusting orifice 17, and a constant amount is constantly injected at high pressure into the waste oil circulation path during combustion of the waste oil.
【００１７】廃油と燃料油の混合割合は、燃料の性状及
び燃焼性により決定される。混合割合を変化させる場合
は、燃料油量を増減させる。図１の燃料供給装置におい
ては廃油循環路に燃料油を注入しているが、この逆で廃
油を燃料油路に注入するように構成してもよいことは当
然である。The mixing ratio of the waste oil and the fuel oil is determined by the properties and combustibility of the fuel. When changing the mixing ratio, the amount of fuel oil is increased or decreased. In the fuel supply system of FIG. 1, the fuel oil is injected into the waste oil circulation path, but it is of course possible to inject the waste oil into the fuel oil path in the reverse order.
【００１８】図１の燃料供給装置２０においては、３方
向切換弁１０を用いて、３位置制御への適用例を示して
いる。５０％燃焼時は注入電磁弁１６−Ｌとボイラ２４
の電磁弁２２−Ｌが開となり、１００％燃焼時は更に注
入電磁弁１６−Ｈとボイラ２４の電磁弁２２−Ｈが開と
なる。In the fuel supply device 20 of FIG. 1, an example of application to three-position control using the three-way switching valve 10 is shown. At the time of 50% combustion, injection solenoid valve 16-L and boiler 24
Solenoid valve 22-L is opened, and the injection solenoid valve 16-H and the solenoid valve 22-H of the boiler 24 are further opened during 100% combustion.
【００１９】なお、上記実施例では燃料供給装置を１台
のボイラ２４に適用する場合を示したが、本発明は複数
台のボイラに適用してもよいことは当然である。図２及
び図３は２台のボイラ２４，２４’に適用する場合を示
す図で、図３は図２のＡ部分の詳細を示す図である。図
示するようにボイラ２４及び２４’のそれぞれ電磁弁２
２−Ｌ，２２−Ｈ及び２２’−Ｌ，２２’−Ｈに連動さ
せて注入電磁弁１６−Ｌ，１６−Ｈ及び注入電磁弁１
６’−Ｌ，１６’−Ｈを取り付けることにより、可能と
なる。In the above embodiment, the fuel supply device is applied to one boiler 24, but the present invention may be applied to a plurality of boilers. 2 and 3 are diagrams showing a case where the invention is applied to two boilers 24, 24 ', and FIG. 3 is a diagram showing details of a portion A in FIG. As shown, each of the solenoid valves 2 of the boilers 24 and 24 'is
2-L, 22-H and 22'-L, 22'-H in conjunction with injection solenoid valves 16-L, 16-H and injection solenoid valve 1
It becomes possible by attaching 6'-L and 16'-H.
【００２０】廃油燃焼中に廃油温度が設定値以下に低下
した場合又は制御盤１９のスイッチ切換により燃料油運
転を選択した場合は３方向切換弁１０が自動的に廃油が
ボイラ２４に供給される廃油供給路から燃料油がボイラ
２４に供給される燃料油供給路に切換わり、ボイラ２４
が燃焼したまま、廃油から燃料油に変わる。When the temperature of the waste oil drops below a set value during combustion of the waste oil or when fuel oil operation is selected by switching the control panel 19, the three-way switching valve 10 automatically supplies waste oil to the boiler 24. The fuel oil is switched from the waste oil supply path to the fuel oil supply path where the fuel oil is supplied to the boiler 24.
Burns, but changes from waste oil to fuel oil.
【００２１】ストレーナ６の詰まりにより、廃油供給量
が減少した場合、 （必要噴霧量）＞（燃料油量＋廃油量） となるため、廃油循環路中の循環配管中の圧力が除々に
低下し、噴霧量の低下によりサージング燃焼や失火に到
る場合も考えられる。廃油循環路中に圧力スイッチ１１
を設けたり、廃油供給路に流量センサ（図示せず）を設
けてストレーナ６の詰まりを検出し、燃料油に切換える
ことも可能である。When the amount of waste oil supplied is reduced due to clogging of the strainer 6, (required spray amount)> (fuel oil amount + waste oil amount), and therefore the pressure in the circulation pipe in the waste oil circulation path gradually decreases. In some cases, surging combustion or misfire may occur due to a decrease in the spray amount. Pressure switch 11 in the waste oil circuit
Alternatively, a flow rate sensor (not shown) may be provided in the waste oil supply passage to detect clogging of the strainer 6 and switch to fuel oil.
【００２２】廃油燃焼時で燃焼停止時間が長い場合やボ
イラを複数台設置した場合で燃焼時間が均一にならない
場合は、ボイラまでの配管中の液温が低下し再起動時の
着火・燃焼が不安定になることがある。この対応として
図２に示す如く、循環用電磁弁２５を設け、廃油燃焼時
だけ３方向切換弁１０→循環用電磁弁２５→混合油ポン
プ７の経路を形成し、廃油の一部を循環させ配管内の油
温低下を防止することも可能である。If the combustion stop time is long during waste oil combustion or if the combustion time is not uniform when multiple boilers are installed, the liquid temperature in the piping up to the boiler decreases and ignition / combustion at restart occurs. May become unstable. To cope with this, as shown in FIG. 2, a circulation solenoid valve 25 is provided, and a path of the three-way switching valve 10 → the circulation solenoid valve 25 → the mixed oil pump 7 is formed only when the waste oil is burned to circulate a part of the waste oil. It is also possible to prevent the oil temperature in the pipe from decreasing.
【００２３】廃油の発熱量は燃料油より低く、混合油の
場合は混合割合が燃料油５０％：廃油５０％で燃料油の
約９５％の発熱量である。図１においては、ボイラ２４
への供給圧力及びバーナ２３の噴霧圧力が同一の場合、
噴霧量も略同一となるので、発熱量の低下を防ぐには廃
油の噴霧圧力を高くし、噴霧量を増加させれば良い。燃
料油の噴霧圧力を１０ｋｇｆ／ｃｍ2Ｇとした場合、廃
油の噴霧圧力は１１．１ｋｇｆ／ｃｍ2Ｇにすれば良
い。The calorific value of the waste oil is lower than that of the fuel oil, and in the case of the mixed oil, the calorific value is about 95% of the fuel oil with a mixing ratio of 50% fuel oil: 50% waste oil. In FIG. 1, the boiler 24
When the supply pressure to the burner and the spray pressure of the burner 23 are the same,
Since the spray amount is also substantially the same, the spray pressure of the waste oil may be increased and the spray amount may be increased in order to prevent the decrease in the heat generation amount. When the spray pressure of fuel oil is 10 kgf / cm 2 G, the spray pressure of waste oil may be 11.1 kgf / cm 2 G.
【００２４】噴霧圧力Ｐは、 Ｐ＝（噴燃ポンプ２１の設定圧力）＋（噴燃ポンプ２１
への供給圧力） となる。燃料油の供給圧力は略０ｋｇｆ／ｃｍ2Ｇであ
り、廃油の供給圧力は調整バルブ２６の開度により設定
できるので、供給圧力（＝循環圧力）を１．１ｋｇｆ／
ｃｍ2Ｇに設定すれば燃焼熱量を同一にすることが可能
である。The spray pressure P is P = (set pressure of the fuel injection pump 21) + (fuel injection pump 21
Supply pressure). The supply pressure of the fuel oil is approximately 0 kgf / cm 2 G, and the supply pressure of the waste oil can be set by the opening degree of the adjustment valve 26. Therefore, the supply pressure (= circulation pressure) is 1.1 kgf /
If it is set to cm 2 G, it is possible to make the combustion heat amount the same.
【００２５】[0025]
【発明の効果】以上、説明したように本発明によれば下
記のような優れた効果が得られる。 （１）廃油と燃料油の切換が燃焼装置を停止することな
く自動的に行われるので、従来廃油量が少なく燃料とし
て使用することが困難な場合でも燃料として使用でき、
産業廃棄物の有効利用が促進される。As described above, according to the present invention, the following excellent effects can be obtained. (1) Since switching between waste oil and fuel oil is automatically performed without stopping the combustion device, it can be used as a fuel even when it is difficult to use as a fuel due to a small amount of waste oil.
Effective utilization of industrial waste is promoted.
【００２６】（２）燃料油注入路を複数設けることによ
り、複数台の燃焼装置に燃料の供給が可能となる。(2) By providing a plurality of fuel oil injection passages, fuel can be supplied to a plurality of combustion devices.
【００２７】（３）燃焼量に対して混合油ポンプの吐出
容量を大きくするので、循環路の循環により廃油と燃料
油の混合が促進され、また廃油の性状によっては加熱装
置で予め加熱を行うので常に安定した着火及び燃焼が可
能となる。(3) Since the discharge capacity of the mixed oil pump is increased with respect to the combustion amount, the circulation of the circulation path promotes the mixing of the waste oil and the fuel oil, and the heating device preheats the waste oil depending on the property of the waste oil. Therefore, stable ignition and combustion are always possible.
【００２８】（４）燃料供給装置は既設の燃焼装置でも
簡単に取付けることができる。(4) The fuel supply device can be easily attached to an existing combustion device.
【００２９】（５）燃料供給装置がコンパクトで、且つ
構造も簡単となる。(5) The fuel supply device is compact and the structure is simple.
【００３０】（６）廃油と燃料油で燃焼熱量が同一に調
整可能なので、燃焼装置がボイラの場合は蒸発量が一定
になる。(6) Since the combustion heat quantity of waste oil and fuel oil can be adjusted to the same value, the evaporation quantity becomes constant when the combustion device is a boiler.
【図１】本発明の燃焼装置の燃料供給装置の構成例を示
す図である。FIG. 1 is a diagram showing a configuration example of a fuel supply device of a combustion device of the present invention.
【図２】本発明の燃焼装置の燃料供給装置の構成例を示
す図である。FIG. 2 is a diagram showing a configuration example of a fuel supply device of a combustion device of the present invention.
【図３】図２のＡ部分の詳細を示す図である。FIG. 3 is a diagram showing details of a portion A in FIG.
１ 廃油タンク ２ 移送ポンプ ３ 廃油サービスタンク ４ ストレーナ ５ レベルスイッチ ６ ストレーナ ７ 混合油ポンプ ８ 加熱装置 ９ ミキサー １０ ３方向切換弁 １１ 圧力スイッチ １２ 温度検出器 １３ 燃料油タンク １４ ストレーナ １５ 燃料油注入ポンプ １６−Ｌ 注入電磁弁 １６−Ｈ 注入電磁弁 １６’−Ｌ 注入電磁弁 １６’−Ｈ 注入電磁弁 １７ 流量調整オリフィス １８ 逆止弁 １９ 制御盤 ２０ 燃料供給装置 ２１ 噴燃ポンプ ２２−Ｌ 電磁弁 ２２−Ｈ 電磁弁 ２２’−Ｌ 電磁弁 ２２’−Ｈ 電磁弁 ２３ バーナ ２３’ バーナ ２４ ボイラ ２４’ ボイラ ２５ 循環用電磁弁 ２６ 調整バルブ 1 Waste Oil Tank 2 Transfer Pump 3 Waste Oil Service Tank 4 Strainer 5 Level Switch 6 Strainer 7 Mixed Oil Pump 8 Heating Device 9 Mixer 10 3 Directional Change Valve 11 Pressure Switch 12 Temperature Detector 13 Fuel Oil Tank 14 Strainer 15 Fuel Oil Injection Pump 16 -L injection solenoid valve 16-H injection solenoid valve 16'-L injection solenoid valve 16'-H injection solenoid valve 17 flow rate adjustment orifice 18 check valve 19 control panel 20 fuel supply device 21 fuel injection pump 22-L solenoid valve 22 -H solenoid valve 22'-L solenoid valve 22'-H solenoid valve 23 burner 23 'burner 24 boiler 24' boiler 25 circulation solenoid valve 26 adjustment valve
Claims (2)
する燃料供給装置であって、 前記燃焼装置に出口が接続された３方向切換弁と廃油サ
ービスタンクからストレーナと混合油ポンプと加熱装置
とミキサを経由して分岐する配管の一方を前記３方向切
換弁の第１の入口に接続する廃油供給路と、該分岐する
配管のもう一方を前記混合油ポンプの吸引側に接続する
循環路と、 燃料油タンクからストレーナを経由して分岐する配管の
一方を前記３方向切換弁の第２の入口に接続する燃料油
供給路と、該分岐する配管のもう一方を燃料油注入ポン
プと電磁弁と燃料油量調整オリフィスを経由して前記混
合油ポンプの吸引口に接続する燃料油注入路とを具備
し、 前記廃油サービスタンクの油量が規定値以上であり、廃
油供給路の廃油の温度が設定温度以上の場合には、前記
廃油供給路から前記３方向切換弁を介して燃焼装置に廃
油を供給し、廃油の性状によっては前記燃料油注入路か
ら一定割合の燃料油を廃油に注入してなる混合油を前記
廃油供給路から３方向切換弁を介して燃焼装置に供給
し、前記廃油サービスタンクの油量が少ない場合には、
前記３方向切換弁を切換えて燃料油を燃料油供給路から
燃焼装置に供給する制御手段を具備することを特徴とす
る燃焼装置の燃料供給装置。1. A fuel supply device for supplying waste oil and / or fuel oil to a combustion device, the three-way switching valve having an outlet connected to the combustion device, a waste oil service tank, a strainer, a mixed oil pump, and a heating device. And a waste oil supply passage connecting one of the pipes branched via the mixer to the first inlet of the three-way switching valve, and a circulation passage connecting the other branch pipe to the suction side of the mixed oil pump. And a fuel oil supply path connecting one of the pipes branched from the fuel oil tank via the strainer to the second inlet of the three-way switching valve, and the other of the branched pipes to the fuel oil injection pump and the electromagnetic valve. A fuel oil injection passage connected to the suction port of the mixed oil pump via a valve and a fuel oil amount adjusting orifice, and the amount of oil in the waste oil service tank is equal to or more than a specified value. The temperature is the set temperature In the case where the temperature is equal to or higher than the degree, waste oil is supplied from the waste oil supply path to the combustion device through the three-way switching valve, and depending on the property of the waste oil, a certain proportion of fuel oil is injected into the waste oil. Is supplied to the combustion device from the waste oil supply path through the three-way switching valve, and when the amount of oil in the waste oil service tank is small,
A fuel supply device for a combustion device, comprising control means for switching the three-way switching valve to supply fuel oil from a fuel oil supply passage to the combustion device.
焼装置に廃油及び／又は燃料油を供給することを特徴と
する請求項１に記載の燃焼装置の燃料供給装置。2. The fuel supply device for a combustion device according to claim 1, wherein a plurality of the fuel oil injection passages are provided to supply waste oil and / or fuel oil to a plurality of combustion devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01593594A JP3211123B2 (en) | 1994-01-14 | 1994-01-14 | Combustion device fuel supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01593594A JP3211123B2 (en) | 1994-01-14 | 1994-01-14 | Combustion device fuel supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07208727A true JPH07208727A (en) | 1995-08-11 |
| JP3211123B2 JP3211123B2 (en) | 2001-09-25 |
Family
ID=11902633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01593594A Expired - Fee Related JP3211123B2 (en) | 1994-01-14 | 1994-01-14 | Combustion device fuel supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3211123B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157525A (en) * | 2006-12-22 | 2008-07-10 | Sansyu Sangyo Co Ltd | Combustion apparatus and combustion method for plant system waste oil mixed fuel |
| CN111795399A (en) * | 2020-05-20 | 2020-10-20 | 南宁市西真电子科技开发有限公司 | A kind of alcohol-based fuel automatic proportioning combustion system |
| CN115479282A (en) * | 2022-09-29 | 2022-12-16 | 攀钢集团攀枝花钢钒有限公司 | Waste mineral oil treatment method and device |
-
1994
- 1994-01-14 JP JP01593594A patent/JP3211123B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157525A (en) * | 2006-12-22 | 2008-07-10 | Sansyu Sangyo Co Ltd | Combustion apparatus and combustion method for plant system waste oil mixed fuel |
| CN111795399A (en) * | 2020-05-20 | 2020-10-20 | 南宁市西真电子科技开发有限公司 | A kind of alcohol-based fuel automatic proportioning combustion system |
| CN115479282A (en) * | 2022-09-29 | 2022-12-16 | 攀钢集团攀枝花钢钒有限公司 | Waste mineral oil treatment method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3211123B2 (en) | 2001-09-25 |
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