JPS6040719A - Exhaust smoke purifying device of diesel-engine - Google Patents
Exhaust smoke purifying device of diesel-engineInfo
- Publication number
- JPS6040719A JPS6040719A JP58146654A JP14665483A JPS6040719A JP S6040719 A JPS6040719 A JP S6040719A JP 58146654 A JP58146654 A JP 58146654A JP 14665483 A JP14665483 A JP 14665483A JP S6040719 A JPS6040719 A JP S6040719A
- Authority
- JP
- Japan
- Prior art keywords
- water
- exhaust
- diesel engine
- cooling
- cooling water
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/0205—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Description
【発明の詳細な説明】
この発明は、排気中に水蒸気を飽和させるだめの水蒸発
器と、発生した飽和水蒸気を適冷状態にするだめの主冷
却器、および水蒸気が付着凝縮して水滴状に成長した煤
煙粒子を捕捉除去するためのフィルタを備えるディーゼ
ル機関排気煤煙浄化装置の改良に関する。Detailed Description of the Invention This invention provides a water evaporator for saturating water vapor in exhaust gas, a main cooler for cooling the generated saturated water vapor to an appropriate state, and water vapor that adheres and condenses to form water droplets. The present invention relates to an improvement in a diesel engine exhaust soot purification device equipped with a filter for trapping and removing soot particles that have grown.
ディーゼル機関排気煤煙中、特に人体に有害な０．１〜
１μｍの細かく、かつ軽い煤煙粒子を捕捉するため、デ
ィーゼル機関の排気により水を蒸発させ、その水蒸気で
水蒸発器内を充たした後、主冷却器によシ冷却して適冷
状態とし、微小な煤煙粒子を核として、これに水蒸気を
凝縮させて水滴を形成せしめ、数十μｍの大きさにして
から、フィルタで捕捉除去する、いわゆる核凝縮法によ
るディーゼル機関排気煤煙浄化装置は公知である。Diesel engine exhaust soot, especially harmful to the human body, 0.1~
In order to capture fine and light soot particles of 1 μm in size, water is evaporated from the diesel engine exhaust, the water vapor fills the water vapor, and then cooled by the main cooler to achieve an appropriate cooling state. A diesel engine exhaust soot purification device using the so-called nuclear condensation method is known, in which water vapor is condensed on the soot particles to form water droplets, which are made into a size of several tens of micrometers, and then captured and removed by a filter. .
しかし、この装置では、排気温度が高いと、水の蒸発量
が大となるが、排気容積も犬となシ、そのだめ、飽和水
蒸気の主冷却器内通過の流速が犬となって、そこでの滞
留時間が短かく、冷却効果が悪くなる。However, in this device, when the exhaust temperature is high, the amount of water evaporation increases, but the exhaust volume is also small, and the flow rate of saturated steam passing through the main cooler becomes large. The residence time is short and the cooling effect is poor.
そのため、温度降下少なく、水蒸気凝縮率が低く、した
がって煤煙除去率も低くなる。Therefore, the temperature drop is small, the water vapor condensation rate is low, and the soot removal rate is also low.
一方、排気温度が低過ぎると、水の蒸発量は少なくなシ
、したがって、水蒸気の凝縮量が少なくなシ、煤煙除去
がしにくくなる。On the other hand, if the exhaust temperature is too low, the amount of water evaporated will be small, and therefore the amount of water vapor condensed will be small, making it difficult to remove soot.
すなわち、高い煤煙除去率を得るのに適正な排気温度領
域が存在するが、この場合、特に、水蒸発器入口に於け
る排気温度が高くなることを防ぐ具体策がなかったので
、水の蒸発量が燃料消費量の約３倍と大きくなったシ、
煤煙除去率が著しく低く々るという欠点があった。In other words, there is an appropriate exhaust temperature range to obtain a high soot removal rate, but in this case, there was no concrete measure to prevent the exhaust temperature at the water evaporator inlet from becoming high, so water evaporation The amount of fuel consumption has increased to about three times the amount of fuel consumed.
The drawback was that the soot removal rate was extremely low.
この発明は、上記欠点に鑑み、上述の型式のディーゼル
機関排気煤煙浄化装置に於て、排気温度が高過ぎて、水
の蒸発量が多くなること、および煤煙除去率が低下する
ことの防止を計ったもので、水蒸発器の前段に排気の予
冷却器を設けること、並びに同予冷却器の冷却水入口側
を、冷却水供給管によりディーゼル機関冷却水出口側と
接続し、かつ、冷却水出口側番、冷却水戻υ管によシラ
ヂエータ冷却水入口側と接続したことを特徴とするもの
である。In view of the above-mentioned drawbacks, this invention aims to prevent the above-mentioned type of diesel engine exhaust soot purification device from increasing the amount of water evaporation and reducing the soot removal rate due to excessively high exhaust temperature. An exhaust precooler must be installed before the water evaporator, and the cooling water inlet side of the precooler must be connected to the diesel engine cooling water outlet side via a cooling water supply pipe. It is characterized in that the water outlet side number is connected to the sill radiator cooling water inlet side through a cooling water return pipe.
次に、この発明のディーゼル機関排気煤煙浄化装置の一
実施例を、図面に基いて説明する。Next, an embodiment of the diesel engine exhaust soot purification device of the present invention will be described based on the drawings.
自動車用ディーゼル機関（１）の排気管（４）は、予冷
却器（６）内を通過して、水蒸発器（７）へ導かれてい
る。An exhaust pipe (4) of an automobile diesel engine (1) passes through a precooler (6) and is led to a water evaporator (7).
予冷却器（６）は、その内部の冷却水にょシ、排気管（
４）をその外側よりｈ却するものであるが、冷却水をデ
ィーゼル機関（１１用の冷却水を利用して循環使用でき
るよう、同予冷却器（６）の冷却水入口側は、冷却水供
給管０】）によシ、ディーゼル機関（１）のｌ今加水出
口側と接続され、かつ、冷却水出口側は、冷却水戻り管
ａ２０によシラヂエータ（２）の冷却水入口側と接続さ
れている。The precooler (6) has cooling water inside it, an exhaust pipe (
4) is cooled from the outside, but the cooling water inlet side of the precooler (6) is designed so that the cooling water can be recycled using the cooling water for the diesel engine (11). The supply pipe A20 is connected to the water addition outlet side of the diesel engine (1), and the cooling water outlet side is connected to the cooling water inlet side of the radiator (2) through the cooling water return pipe A20. has been done.
冷却用ファン（３）は、ラヂエータ（２）内を通過する
冷却水を空冷するために、ディーゼル機関（１）に直結
されている。The cooling fan (3) is directly connected to the diesel engine (1) in order to air-cool the cooling water passing through the radiator (2).
水蒸発器（７）は水を溜めた容器で、その水面下に排気
管（４）を導設することによシ、同容器内に排気熱で飽
和水蒸気を発生せしめるとともに、排気中の大型煤煙粒
子をその水中に捕捉するようになっている。The water evaporator (7) is a container that stores water, and by installing an exhaust pipe (4) under the water surface, the water evaporator (7) generates saturated steam in the container using the exhaust heat, and also generates saturated steam in the container by introducing the exhaust pipe (4) under the water surface. It is designed to trap soot particles in its water.
主冷却器（８）は、水蒸発器（７）で発生した飽和水蒸
気を過冷却させることによシ、捕捉出来なかった微細な
煤煙粒子を核として、これに飽和水蒸気を凝縮させるだ
めのもので、外面に空冷用のフィンを取付けた冷却管方
式のものである。The main cooler (8) is a device that supercools the saturated steam generated in the water evaporator (7) and condenses the saturated steam using the fine soot particles that could not be captured as cores. It is a cooling tube type with air cooling fins attached to the outer surface.
フィルタ（９）は、主冷却器（８）内で、核凝縮によシ
数十μｍの水滴に包まれた微小な煤煙粒子を捕捉するだ
めのものである。The filter (9) is for trapping minute soot particles that are surrounded by water droplets of several tens of micrometers due to nuclear condensation in the main cooler (8).
ヒータ００）は、フィルタ（９）を出た排気を、湯気を
伴なうことなく、大気中に放出するだめのものである。The heater 00) is designed to discharge the exhaust gas from the filter (9) into the atmosphere without steam.
ディーゼル機関（１）で発光した２００〜５００Ｃの排
気は、排気管（４）によシ排出されるが、同排気管（４
）は、予冷却器（６）内において６０〜８０Ｃの水によ
シ水冷され、排気が１００〜２５０Ｃに保たれた状態で
、水蒸発器（７）の水中に吐出される。The 200-500C exhaust emitted by the diesel engine (1) is discharged through the exhaust pipe (4);
) is water-cooled with water at 60 to 80C in the precooler (6), and discharged into the water of the water evaporator (7) while the exhaust gas is maintained at 100 to 250C.
この時、数μ？ｎ以上の大型煤煙粒子は、水中に捕捉除
去されるが、同時に水を蒸発させ、５０〜９０Ｃ程度の
水蒸気が飽和した排気となシ、更に主冷却器（８）で１
０〜２０Ｃ？ｅ却された後、微小な煤煙粒子を中心とし
て、飽和水蒸気が核凝縮を生じ、数十μｍの水滴に成長
した状態でフィルタ（９）を通過することによシ、微小
な煤煙粒子は、ここで除去される。At this time, a few μ? Large soot particles of n or more are captured and removed in the water, but at the same time, the water is evaporated and the exhaust gas is saturated with water vapor at about 50 to 90 C. Furthermore, the main cooler (8)
0~20C? After being evacuated, the saturated water vapor undergoes nuclear condensation centering on the minute soot particles, which grow into water droplets of several tens of micrometers and then pass through the filter (9). removed here.
この発明のディーゼル機関排気煤煙浄化装置においては
、ディーゼル機関（１）の排気を予冷却器（６）を通じ
てから、水蒸発器（７）に供給するので、排気温度が高
くなシ過ぎるのが防がれ、従って、水の蒸発量、即ち消
費量を、燃料消費量程度に節約することができるととも
に、煤煙除去率を９０係以上に確保することができる。In the diesel engine exhaust soot purification device of the present invention, the exhaust gas of the diesel engine (1) is supplied to the water evaporator (7) after passing through the precooler (6), thereby preventing the exhaust temperature from becoming too high. Therefore, the amount of evaporation of water, that is, the amount of water consumed, can be reduced to the same level as the amount of fuel consumed, and the soot removal rate can be maintained at a rate of 90 or higher.
また、冷却水供給管０υおよび冷却水戻シ管０２を設け
て、ディーゼル機関（１）用の冷却水を予冷却器（６）
用の冷却水に利用しているので、予冷却器専用の冷却水
調達設備を設けなくて済み、ディーゼル機関排気煤煙浄
化装置を、小型に、かつ安価に製作することが出来る。In addition, a cooling water supply pipe 0υ and a cooling water return pipe 02 are provided to supply cooling water for the diesel engine (1) to the precooler (6).
Since it is used as cooling water for the precooler, there is no need to provide cooling water procurement equipment exclusively for the precooler, and the diesel engine exhaust soot purification device can be manufactured in a small size and at low cost.
以上のようにこの発明によれば、デイゼル機関排気公害
対策を、効果的かつ経済的に実施するととが可能である
。As described above, according to the present invention, it is possible to implement diesel engine exhaust pollution countermeasures effectively and economically.
図面は、この発明のディーゼル機関排気煤煙浄化装置の
一実施例の縦断側面図である。
（１）ディーゼル機関 （２）ラヂエータ（３）冷却用
ファン゛ （４）排気管
（５）冷却水導管 （６）予冷却器
（力水蒸発器 （８）主冷却器
（９）フィルタ −ａωヒータThe drawing is a longitudinal sectional side view of an embodiment of the diesel engine exhaust soot purification device of the present invention. (1) Diesel engine (2) Radiator (3) Cooling fan (4) Exhaust pipe (5) Cooling water conduit (6) Precooler (power water evaporator) (8) Main cooler (9) Filter -aω heater
Claims (2)
発生した飽和水蒸気を適冷状態にするだめの主冷却器、
および水蒸気が付着凝縮して水滴状に成長した煤煙粒子
を捕捉除去するだめのフィルタを備えるディーゼル機関
排気煤煙浄化装置において、水蒸発器の前段に排気の予
冷却器を設けたことを特徴とするディーゼル機関排気煤
煙浄化装置。(1) A water evaporator that saturates water vapor in the exhaust gas,
A main cooler that cools the generated saturated steam to an appropriate state;
and a diesel engine exhaust soot purification device equipped with a filter for trapping and removing soot particles grown in the form of water droplets due to adhesion and condensation of water vapor, characterized in that an exhaust pre-cooler is provided in the front stage of the water evaporator. Diesel engine exhaust soot purification device.
入口側が、冷却水供給管によシブイーゼル機関の冷却水
出口側と接続され、かつ冷却水出口側が、冷却水戻シ管
によシラヂエータ冷却水入口側と接続されていることを
特徴とする特許請求の範囲第（１）項に記載のディーゼ
ル機関排気煤煙浄化装置。(2) The cooling water inlet side of the exhaust precooler installed in the front stage of the water evaporator is connected to the cooling water outlet side of the sib easel engine through a cooling water supply pipe, and the cooling water outlet side is connected to the cooling water return pipe. The diesel engine exhaust soot purification device according to claim 1, wherein the diesel engine exhaust soot purification device is connected to the sill radiator cooling water inlet side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58146654A JPS6040719A (en) | 1983-08-12 | 1983-08-12 | Exhaust smoke purifying device of diesel-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58146654A JPS6040719A (en) | 1983-08-12 | 1983-08-12 | Exhaust smoke purifying device of diesel-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6040719A true JPS6040719A (en) | 1985-03-04 |
Family
ID=15412607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58146654A Pending JPS6040719A (en) | 1983-08-12 | 1983-08-12 | Exhaust smoke purifying device of diesel-engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040719A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791226A (en) * | 1993-09-27 | 1995-04-04 | Iwai Kojima | Exhaust emission control device for automobile and the like |
| FR2763993A1 (en) * | 1997-06-03 | 1998-12-04 | Jean Dumon | I.c. engine exhaust system particle trap |
| EP2725209A1 (en) * | 2011-06-21 | 2014-04-30 | Jesús Álvarez Díaz | System for the treatment of exhaust gases from an internal combustion engine |
| CN107023354A (en) * | 2017-05-26 | 2017-08-08 | 成都东浩散热器有限公司 | Filter plant on exhaust emissions |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52113419A (en) * | 1976-03-19 | 1977-09-22 | Nissan Motor Co Ltd | Water cooling type system for capturing and removing fine particles |
-
1983
- 1983-08-12 JP JP58146654A patent/JPS6040719A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52113419A (en) * | 1976-03-19 | 1977-09-22 | Nissan Motor Co Ltd | Water cooling type system for capturing and removing fine particles |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791226A (en) * | 1993-09-27 | 1995-04-04 | Iwai Kojima | Exhaust emission control device for automobile and the like |
| FR2763993A1 (en) * | 1997-06-03 | 1998-12-04 | Jean Dumon | I.c. engine exhaust system particle trap |
| EP2725209A1 (en) * | 2011-06-21 | 2014-04-30 | Jesús Álvarez Díaz | System for the treatment of exhaust gases from an internal combustion engine |
| EP2725209A4 (en) * | 2011-06-21 | 2014-11-19 | Díaz Jesús Álvarez | System for the treatment of exhaust gases from an internal combustion engine |
| CN107023354A (en) * | 2017-05-26 | 2017-08-08 | 成都东浩散热器有限公司 | Filter plant on exhaust emissions |
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