JPH0326301Y2 - - Google Patents
Info
- Publication number
- JPH0326301Y2 JPH0326301Y2 JP1985088024U JP8802485U JPH0326301Y2 JP H0326301 Y2 JPH0326301 Y2 JP H0326301Y2 JP 1985088024 U JP1985088024 U JP 1985088024U JP 8802485 U JP8802485 U JP 8802485U JP H0326301 Y2 JPH0326301 Y2 JP H0326301Y2
- Authority
- JP
- Japan
- Prior art keywords
- methanol
- chamber
- reaction chamber
- engine
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 90
- 238000006243 chemical reaction Methods 0.000 claims description 40
- 238000001704 evaporation Methods 0.000 claims description 27
- 230000008020 evaporation Effects 0.000 claims description 25
- 238000009835 boiling Methods 0.000 claims description 19
- 239000000446 fuel Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 12
- 238000005192 partition Methods 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 4
- 238000002407 reforming Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Hydrogen, Water And Hydrids (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel Cell (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、メターノルを主燃料とするエンジン
に備えられ、メタノールを低沸成分に改質する反
応器の改良に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement in a reactor for reforming methanol into a low-boiling component, which is installed in an engine using methanol as a main fuel.
（従来の技術）
メターノルは気化潜熱が大きく引火点が高いと
いう特性を有しているため、これを主燃料とする
メターノルエンジンは冷間始動時等に燃焼が不安
定になる。(Prior Art) Methanol has a characteristic of having a large latent heat of vaporization and a high flash point, so a methanol engine that uses this as the main fuel has unstable combustion during cold start.
従来、この対策として、燃料供給系統にメター
ノルを引火点の低い低沸成分に改質する反応器を
備えるものがある（特開昭59−168253公報、実開
昭59−142456号公報参照）。 Conventionally, as a countermeasure against this problem, there have been systems in which the fuel supply system is equipped with a reactor for reforming methanol into a low-boiling component with a low flash point (see Japanese Patent Application Laid-open No. 168253/1982 and Japanese Utility Model Application No. 142456/1989).
これは第２図、第３図に示すように、エンジン
の通常運転時にメターノルはポンプ２により反応
器１に供給され、反応器１で改質された低沸成分
はタンク３に貯蔵され、低温始動時に電磁弁４を
介してスロツトル弁８の下流側吸気通路７に供給
されるようになつている。制御装置５はスタータ
スイツチ、イグニツシヨンスイツチ、水温セン
サ、および反応器１の温度を検出する温度センサ
１８からの信号等を入力して、運転条件に応じて
上記ポンプ２、反応器１に備えられるヒータ１
９、および電磁弁２を制御している。 As shown in Figures 2 and 3, during normal operation of the engine, methanol is supplied to reactor 1 by pump 2, and the low-boiling components reformed in reactor 1 are stored in tank 3 and stored at low temperature. At startup, the air is supplied to the intake passage 7 on the downstream side of the throttle valve 8 via the solenoid valve 4. The control device 5 inputs signals from a starter switch, an ignition switch, a water temperature sensor, a temperature sensor 18 that detects the temperature of the reactor 1, and controls the pump 2 and the reactor 1 according to operating conditions. Heater 1
9 and the solenoid valve 2.
反応器１は、ポンプ２を介して流入する液体メ
ターノルを蒸発させる蒸発室１２と、触媒１３を
充填した反応室９を備え、反応室９はその中心部
に電熱ヒータ１９を介在させている。 The reactor 1 includes an evaporation chamber 12 for evaporating liquid methanol flowing in through a pump 2, and a reaction chamber 9 filled with a catalyst 13, and an electric heater 19 is interposed in the center of the reaction chamber 9.
蒸発室１２は反応室９の外側を囲むように断面
環状に形成され、その底部に開口する通孔２４か
ら液体メタノールを流入させる一方、その上方に
形成された間隙２４を介して蒸発メタノールを反
応室９に導いている。 The evaporation chamber 12 is formed to have an annular cross section so as to surround the outside of the reaction chamber 9, and allows liquid methanol to flow in through a through hole 24 opened at the bottom of the evaporation chamber 12, while reacting the evaporated methanol through a gap 24 formed above. I'm leading you to room 9.
反応室９では触媒１０を介してメタノールをジ
メチルエーテル等の低沸成分に改質する反応が行
われ、反応室９内がヒータ１９に加熱されること
によりこの反応速度を高めるようになつている。 In the reaction chamber 9, a reaction is carried out to reform methanol into a low-boiling component such as dimethyl ether via a catalyst 10, and the reaction rate is increased by heating the inside of the reaction chamber 9 with a heater 19.
反応室９と蒸発室１２の間には改質された低沸
成分を集める捕集室１１が画成され、この捕集室
１１は下方に形成された連通孔２５を介して反応
室９と連通する一方、仕切り板２１を隔てて底部
に開口する通孔２６から捕集した低沸成分をタン
ク３に導くようになつている。 A collection chamber 11 is defined between the reaction chamber 9 and the evaporation chamber 12 to collect the reformed low-boiling components, and this collection chamber 11 is connected to the reaction chamber 9 through a communication hole 25 formed below. On the other hand, the collected low-boiling components are led to the tank 3 through a through hole 26 which is opened at the bottom with a partition plate 21 in between.
（考案が解決しようとする問題点）
しかしながら、反応室９の内部に直接ヒータ１
９を介在させているため、ヒータ１９の通電時に
反応室９の温度は局部的に上昇して温度分布が不
均一になり、反応室９におけるメタノールの反応
速度も局部的に高められる。このため、ジメチル
エーテル等の低沸成分の改質率が下し、水素やメ
タン等が増えるという問題点があつた。(Problem to be solved by the invention) However, the heater 1 is installed directly inside the reaction chamber 9.
9, when the heater 19 is energized, the temperature of the reaction chamber 9 locally increases, the temperature distribution becomes non-uniform, and the reaction rate of methanol in the reaction chamber 9 is also locally increased. For this reason, there was a problem that the reforming rate of low-boiling components such as dimethyl ether decreased and hydrogen, methane, etc. increased.
本考案は、上記問題点を解決することを目的と
する。 The present invention aims to solve the above problems.
（問題点を解決するための手段）
本考案は、通常運転時にエンジンに供給される
主燃料をメタノールとし、このメタノールを始動
時等に補助燃料としてエンジンに供給される低沸
成分に改質するメタノールエンジンの反応器にお
いて、液体メタノールを蒸発させる蒸発室の内側
に電熱ヒータを配置するとともに、蒸発メタノー
ルを反応させて低沸成分に改質する反応室を、前
記電熱ヒータに対し所定の間隔があくように前記
蒸発室の周囲に配置する。(Means for solving the problem) The present invention uses methanol as the main fuel supplied to the engine during normal operation, and reforms this methanol into a low-boiling component that is supplied to the engine as auxiliary fuel during startup, etc. In a methanol engine reactor, an electric heater is arranged inside an evaporation chamber for evaporating liquid methanol, and a reaction chamber for reacting the evaporated methanol to reform it into a low-boiling component is spaced at a predetermined distance from the electric heater. It is arranged around the evaporation chamber so that it is open.
（作用）
ヒータの通電時にまず蒸発室の空気が暖めら
れ、反応室は蒸発室内の空気を介して間接的に加
熱されるため、反応室の温度を均一に高められ、
その結果反応室におけるメタノールの反応速度を
全体的に高めて、ジメチルエーテル等の低沸成分
への変質率を高められる。(Function) When the heater is energized, the air in the evaporation chamber is first warmed, and the reaction chamber is indirectly heated through the air in the evaporation chamber, so the temperature of the reaction chamber can be raised uniformly.
As a result, the overall reaction rate of methanol in the reaction chamber can be increased, and the conversion rate to low-boiling components such as dimethyl ether can be increased.
（実施例）
以下、本考案の一実施例を第１図にもとづいて
説明する。(Example) Hereinafter, an example of the present invention will be described based on FIG. 1.
反応器１は有底円筒状の容器３２Ｕと容器３２
Ｂが互いに嵌合してその内側に円柱状の空間を画
成する。 The reactor 1 includes a bottomed cylindrical container 32U and a container 32.
B fit into each other to define a cylindrical space inside.
この容器３２Ａの内側に断面略Ｌ字形のつば付
き円筒状の隔壁３７を固着し、この隔壁３７の内
側に蒸発室３３を、その外側に反応室３４を画成
する。 A cylindrical partition wall 37 with a flange having a substantially L-shaped cross section is fixed to the inside of the container 32A, and an evaporation chamber 33 is defined inside the partition wall 37, and a reaction chamber 34 is defined outside the partition wall 37.
蒸発室３３はその底部に接続する入口配管３１
ａと、タンク３の内部に配設された配管３０を介
してポンプ２に連通し、このポンプ２から液体メ
タノールが供給される。 The evaporation chamber 33 has an inlet pipe 31 connected to its bottom.
a and a pump 2 via a pipe 30 disposed inside the tank 3, and liquid methanol is supplied from the pump 2.
隔壁３７のつば部３７Ｆには多数の通孔４１を
形成し、この通孔４１を介して蒸発室３３はその
上方で反応室３４と連通し、蒸発室３３における
メタノールの蒸発ガスが反応室３４に導かれる。 A large number of through holes 41 are formed in the brim portion 37F of the partition wall 37, and the evaporation chamber 33 communicates with the reaction chamber 34 above through the through holes 41, so that the evaporated gas of methanol in the evaporation chamber 33 flows into the reaction chamber 34. guided by.
容器３２Ｕの上面にはコネクタ４０を介してヒ
ータ１９を螺合し、蒸発室３３の中心部にヒータ
１９を配置する。したがつて、蒸発室３３はヒー
た１９の外周面に沿つて断面環状に画成されるこ
とになる。 A heater 19 is screwed onto the upper surface of the container 32U via a connector 40, and the heater 19 is arranged in the center of the evaporation chamber 33. Therefore, the evaporation chamber 33 is defined to have an annular cross section along the outer peripheral surface of the heated chamber 19.
反応室３４は、その底部には円盤状の底板３６
を固着し、その内部に触媒１０が充填される。 The reaction chamber 34 has a disk-shaped bottom plate 36 at its bottom.
is fixed, and the catalyst 10 is filled inside.
底板３６と容器３２Ｂの間で捕集室４３を画成
するとともに、底板３６には多数の通孔４２を形
成する。この通孔４２を介して反応室３４はその
下方で捕集室４３に連通し、反応室３４において
メタノールが反応して得られるジメチルエーテル
等の低沸成分を捕集室４３に集めるようにする。 A collection chamber 43 is defined between the bottom plate 36 and the container 32B, and a large number of through holes 42 are formed in the bottom plate 36. The reaction chamber 34 communicates with a collection chamber 43 below through the through hole 42, so that low-boiling components such as dimethyl ether obtained by reaction of methanol in the reaction chamber 34 are collected in the collection chamber 43.
容器３２Ｂを介して捕集室４３の底部に接続す
る出口配管３２ｂは入口配管３２ａを覆うように
複筒式に形成され、コネクタ４５を介してタンク
３に連通する。 An outlet pipe 32b connected to the bottom of the collection chamber 43 via the container 32B is formed in a double-tube type so as to cover the inlet pipe 32a, and communicates with the tank 3 via a connector 45.
容器３２Ｕと３２Ｂの外側を所定の間隙をもつ
て覆う遮熱板３７をコネクタ４０と出口配管３１
ｂを介して取付け、反応器１から外部への放熱量
を少なくする。 A heat shield plate 37 that covers the outside of the containers 32U and 32B with a predetermined gap is connected to the connector 40 and the outlet pipe 31.
b to reduce the amount of heat radiated from the reactor 1 to the outside.
このように、ヒータ１９を囲むようにして蒸発
室３３を、さらに前記ヒータ１９に対し所定の間
隔があくように蒸発室３３の周囲に反応室３４を
配置することにより、ヒータ１９が通電される
と、まず蒸発室３３内の空気が加熱され、反応室
３４にはこの蒸発室３３内の加熱された空気が流
入するとともに、隔壁３７を介しての伝熱により
暖められる。いずれにしても反応室３４は蒸発室
３３の空気を介して間接的に加熱されるのであ
り、反応室３４を所望の温度に均一に保つこがで
きる。したがつて、反応室３４内のほぼ全域にお
いてメタノールの反応速度を高め、ジメチルエー
テル等の低沸成分への改質率を高めることができ
る。 In this way, by arranging the evaporation chamber 33 to surround the heater 19 and the reaction chamber 34 around the evaporation chamber 33 with a predetermined distance from the heater 19, when the heater 19 is energized, First, the air in the evaporation chamber 33 is heated, and the heated air in the evaporation chamber 33 flows into the reaction chamber 34 and is warmed by heat transfer through the partition wall 37 . In any case, the reaction chamber 34 is heated indirectly via the air in the evaporation chamber 33, and the reaction chamber 34 can be maintained at a uniform desired temperature. Therefore, the reaction rate of methanol can be increased in almost the entire area within the reaction chamber 34, and the rate of modification to low-boiling components such as dimethyl ether can be increased.
なお、このようなメタノールの低沸成分への変
換は、図示しない制御装置によりエンジンの通常
運転時に行われ、反応室３４から捕集室４３、出
口配管３１ｂを介してタンク３に蓄えられるとと
もに、このタンク３に蓄えられた低沸成分は、冷
間始動時等にエンジンに供給され、エンジン燃焼
の安定化がはかられる。 Note that such conversion of methanol into low-boiling components is performed by a control device (not shown) during normal operation of the engine, and is stored in the tank 3 via the reaction chamber 34, the collection chamber 43, and the outlet pipe 31b, and The low-boiling components stored in the tank 3 are supplied to the engine during cold start, etc., thereby stabilizing engine combustion.
（考案の効果）
以上のように本考案は、メタノールを低沸成分
に反応させる反応室を蒸発室の外側に設け、蒸発
室の内側に前記反応室に対して所定の間隔があく
ように電熱ヒータを配設するようにしたため、反
応室の温度分布を均一化してメタノールの反応速
度を全体的に高め、ジメチルエーテル等の低沸成
分への改質率を高めることができ、その結果、エ
ンジンの始動時等に低沸成分の供給を安定して行
えるという効果が生じる。(Effects of the invention) As described above, the present invention provides a reaction chamber outside the evaporation chamber in which methanol is reacted with low-boiling components, and an electric heater is installed inside the evaporation chamber at a predetermined distance from the reaction chamber. By installing a heater, it is possible to equalize the temperature distribution in the reaction chamber, increase the overall reaction rate of methanol, and increase the rate of reforming to low-boiling components such as dimethyl ether.As a result, the engine The effect is that low-boiling components can be stably supplied during startup and the like.
第１図は本考案の一実施例を示す断面図であ
る。第２図は従来例を示す全体構成図、第３図は
同じく反応器の断面図である。
１……反応器、２……ポンプ、３……タンク、
１０……触媒、１９……ヒータ、３３……蒸発
室、３４……反応室、３７……隔壁。
FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is an overall configuration diagram showing a conventional example, and FIG. 3 is a sectional view of the reactor. 1...reactor, 2...pump, 3...tank,
10... Catalyst, 19... Heater, 33... Evaporation chamber, 34... Reaction chamber, 37... Partition wall.
Claims (1)
タノールとし、このメタノールを始動時等に補助
燃料としてエンジンに供給される低沸成分に改質
するメタノールエンジンの反応器において、液体
メタノールを蒸発させる蒸発室の内側に電熱ヒー
タを配置するとともに、蒸発メタノールを反応さ
せて低沸成分に改質する反応室を、前記電熱ヒー
タに対し所定の間隔があくように前記蒸発室の周
囲に配置したことを特徴とするメタノールエンジ
ンの反応器。 Methanol is the main fuel supplied to the engine during normal operation, and this methanol is reformed into low-boiling components that are supplied to the engine as auxiliary fuel during startup etc. In the reactor of a methanol engine, an evaporation chamber that evaporates liquid methanol. An electric heater is disposed inside the evaporation chamber, and a reaction chamber for reacting evaporated methanol to reform it into a low-boiling component is disposed around the evaporation chamber at a predetermined distance from the electric heater. methanol engine reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985088024U JPH0326301Y2 (en) | 1985-06-11 | 1985-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985088024U JPH0326301Y2 (en) | 1985-06-11 | 1985-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61202675U JPS61202675U (en) | 1986-12-19 |
| JPH0326301Y2 true JPH0326301Y2 (en) | 1991-06-06 |
Family
ID=30640777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985088024U Expired JPH0326301Y2 (en) | 1985-06-11 | 1985-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0326301Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142456U (en) * | 1983-03-15 | 1984-09-22 | 日産自動車株式会社 | Reactor for methanol-gasoline conversion |
-
1985
- 1985-06-11 JP JP1985088024U patent/JPH0326301Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61202675U (en) | 1986-12-19 |
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