TWI735725B - Regeneration method of ceramic filter for diesel engine exhaust, treatment method of diesel engine exhaust, and diesel engine exhaust dust collection system - Google Patents

Regeneration method of ceramic filter for diesel engine exhaust, treatment method of diesel engine exhaust, and diesel engine exhaust dust collection system Download PDF

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TWI735725B
TWI735725B TW106146224A TW106146224A TWI735725B TW I735725 B TWI735725 B TW I735725B TW 106146224 A TW106146224 A TW 106146224A TW 106146224 A TW106146224 A TW 106146224A TW I735725 B TWI735725 B TW I735725B
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diesel engine
ceramic filter
gas
ceramic
engine exhaust
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TW201839249A (en
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野野川正巳
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日商日本碍子股份有限公司
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    • 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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/0233—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 using means for regenerating the filters, e.g. by burning trapped particles periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • 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
    • F01N13/011—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 purifying devices arranged in parallel
    • 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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—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 using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • 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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/029—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 using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to 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
    • F01N3/031—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 having means for by-passing filters, e.g. when clogged or during cold engine start
    • F01N3/032—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 having means for by-passing filters, e.g. when clogged or during cold engine start during filter regeneration only
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)

Abstract

提供一種柴油引擎排氣用陶瓷過濾器之再生方法、柴油引擎排氣之處理方法以及柴油引擎排氣集塵系統，該柴油引擎排氣用陶瓷過濾器之再生方法係在附著於陶瓷過濾器之粒子狀物質及油分的潔淨效果優異，且對陶瓷過濾器之損害少。一種柴油引擎排氣用陶瓷過濾器之再生方法、使用該再生方法之柴油引擎排氣的處理方法以及適合該再生方法之實施的柴油引擎排氣集塵系統，該柴油引擎排氣用陶瓷過濾器之再生方法係包含：步驟A，係藉由對以C重油為燃料之柴油引擎排氣中的粒子狀物質及油分所附著的陶瓷過濾器實施使用高壓氣體之回洗，從陶瓷過濾器除去粒子狀物質；及步驟B，係對該陶瓷過濾器加熱至300℃~500℃，從該陶瓷過濾器使油分揮發而除去。 Provided is a method for regenerating a ceramic filter for diesel engine exhaust, a method for processing diesel engine exhaust, and a diesel engine exhaust dust collection system. The method for regenerating the ceramic filter for diesel engine exhaust is attached to the ceramic filter The particulate matter and oil have an excellent cleaning effect, and they do little damage to the ceramic filter. A method for regenerating a ceramic filter for diesel engine exhaust, a method for processing diesel engine exhaust using the regeneration method, and a diesel engine exhaust dust collection system suitable for the implementation of the regeneration method, and the ceramic filter for diesel engine exhaust The regeneration method includes: Step A, which uses high-pressure gas to backwash the ceramic filter attached to the particulate matter and oil in the diesel engine exhaust with C heavy oil as fuel to remove particles from the ceramic filter Like substances; and step B, the ceramic filter is heated to 300 ℃ ~ 500 ℃, from the ceramic filter to volatilize and remove the oil.

Description

柴油引擎排氣用陶瓷過濾器之再生方法、柴油引擎排氣之處理方法以及柴油引擎排氣集塵系統 Regeneration method of ceramic filter for diesel engine exhaust, treatment method of diesel engine exhaust, and diesel engine exhaust dust collection system

本發明係有關於一種對用以收集柴油引擎排氣中之粒子狀物質(PM)的陶瓷過濾器進行再生的方法。又，本發明係有關於一種用以收集柴油引擎排氣中之粒子狀物質(PM)的處理方法。又，本發明係有關於一種用以收集柴油引擎排氣中之粒子狀物質(PM)的柴油引擎排氣集塵系統。 The present invention relates to a method for regenerating a ceramic filter used to collect particulate matter (PM) in diesel engine exhaust. In addition, the present invention relates to a processing method for collecting particulate matter (PM) in diesel engine exhaust. In addition, the present invention relates to a diesel engine exhaust dust collection system for collecting particulate matter (PM) in diesel engine exhaust.

為了收集從車輛、船舶、產業機械等之引擎所排出之高溫的排氣中之粒子狀物質，已知袋過濾器、陶瓷過濾器、柴油粒子收集過濾器(DPF)之各種過濾式集塵機。在過濾式集塵機，作為過濾器阻塞之情況的再生方法，採用A)藉高壓空氣之回洗、B)藉高溫氣體之燃燒再生以及C)藉電性加熱之燃燒再生等。 In order to collect particulate matter in high-temperature exhaust gas discharged from engines of vehicles, ships, industrial machinery, etc., various filter dust collectors such as bag filters, ceramic filters, and diesel particulate filters (DPF) are known. In the filter type dust collector, as the regeneration method of the filter blockage, A) backwashing by high-pressure air, B) combustion regeneration by high temperature gas, and C) combustion regeneration by electric heating, etc. are used.

作為A)之方法，舉例表示在日本專利第3066247號公報(專利文獻1)所記載之方法。在該公報，記載一種方法，該方法係將潔淨用氣體的噴出管配設於陶瓷過濾器的下游側，並將該陶瓷過濾器的下游側端在全部或各既定區間所面臨的一個或複數個封閉室且將流出入管設置於該封閉室，使從該噴出管所噴出之潔淨用氣體通過流出入管，並導入該封閉室內。 As the method of A), the method described in Japanese Patent No. 3066247 (Patent Document 1) is exemplified. This publication describes a method of arranging a cleaning gas outlet pipe on the downstream side of a ceramic filter, and placing the downstream end of the ceramic filter facing one or more of the entire or each predetermined section. A closed room and an inflow and outflow pipe is arranged in the closed room, so that the clean gas ejected from the ejection pipe passes through the outflow and inflow pipe and is introduced into the closed room.

作為B)之方法，舉例表示在日本專利第3073152號公報(專利文獻2)所記載之方法。在該公報，記載一種再生方法，該再生方法係以過濾材料收集來自柴油引擎之排氣中所含的煤塵，並將高溫之焚燒用氣體供給至已收集煤塵之過濾材料的一部分，藉此，焚燒煤塵，而對過濾材料進行再生。 As the method of B), the method described in Japanese Patent No. 3073152 (Patent Document 2) is exemplified. The publication describes a regeneration method that collects coal dust contained in the exhaust gas from a diesel engine with a filter material, and supplies high-temperature incineration gas to a part of the filter material that has collected the coal dust, thereby, Burn coal dust and regenerate the filter material.

作為C)之方法，舉例表示在日本特開2011-236787號公報(專利文獻3)所記載之方法。在該公報，記載一種過濾器，該過濾器係由金屬網加熱器、從其兩側所夾入之一對陶瓷不織布、以及筒體所構成，而該筒體係將積層體折彎成蛇腹狀並成形，該積層體係由在陶瓷不織布之外側所積層的一對支撐用金屬網所構成。外周加熱器被配置於過濾器的外周側。若依據該公報，記載在為了對過濾器進行再生而焚燒粒子狀物質時，對金屬網加熱器與外周加熱器通電，在過濾器整個區域均勻地確保低溫燃燒，藉此，可在短時間達成再生。 As the method of C), the method described in Unexamined-Japanese-Patent No. 2011-236787 (Patent Document 3) is exemplified. The publication describes a filter consisting of a metal mesh heater, a pair of ceramic non-woven fabrics sandwiched from both sides, and a cylinder, and the cylinder system bends the laminated body into a bellows shape And forming, the laminated system is composed of a pair of supporting metal nets laminated on the outer side of the ceramic non-woven fabric. The outer peripheral heater is arranged on the outer peripheral side of the filter. According to the publication, it is stated that when the particulate matter is incinerated in order to regenerate the filter, the metal mesh heater and the outer peripheral heater are energized to ensure low-temperature combustion uniformly throughout the filter area. This can be achieved in a short time. regeneration.

【先行專利文獻】 【Prior Patent Documents】

【專利文獻】 【Patent Literature】

[專利文獻1]日本專利第3066247號公報 [Patent Document 1] Japanese Patent No. 3066247

[專利文獻2]日本專利第3073152號公報 [Patent Document 2] Japanese Patent No. 3073152

[專利文獻3]日本特開2011-236787號公報 [Patent Document 3] JP 2011-236787 A

船舶主機引擎係一般是二行程柴油引擎，燃料係使用C重油。二行程柴油引擎係因為為燃燒效率高，所以排氣 溫度係比較低溫之約250℃，進而，因為氣缸油飛散，所以有排氣中之油分(SOF)多的傾向。又，因為C重油係品質差的油，所以有燃料中含有很多釩或鎳之金屬成分的傾向。因此，在習知技術在過濾器再生時發生如以下所示的問題。 The main engine of the ship is generally a two-stroke diesel engine, and the fuel is C heavy oil. Due to the high combustion efficiency of the two-stroke diesel engine, the exhaust gas temperature is relatively low at about 250°C. Furthermore, because the cylinder oil scatters, there is a tendency for more oil content (SOF) in the exhaust gas. In addition, because C heavy oil is a poor quality oil, the fuel tends to contain a lot of metal components such as vanadium or nickel. Therefore, in the conventional technique, the following problems occur during filter regeneration.

藉高壓空氣之回洗係作為從過濾器噴掉煤或灰塵等之粒子狀物質的技術係有效，但是對附著於過濾器之油分係潔淨效果小。又，對油分所附著之粒子狀物質亦無法得到充分之潔淨效果。藉電性加熱或高溫氣體之燃燒再生係難控制燃燒時之過濾器內部的溫度，根據情況局部性地變成高溫，具有過濾器損壞的可能性。尤其，在使是在船舶所使用之大型柴油引擎的燃料之C重油燃燒的排氣中所含的釩係在800℃以上的高溫區域對陶瓷的不良影響大，例如，在釩附著於堇青石製之過濾器的狀態進行加熱再生的情況，具有因燃燒熱而發生過濾器熔化的可能性。因此，亦出現需要使用昂貴之碳化矽等的材料。 The backwashing system using high-pressure air is effective as a technique for spraying particulate matter such as coal or dust from the filter, but it has a small cleaning effect on the oil attached to the filter. In addition, the particulate matter attached to the oil cannot be sufficiently cleansed. It is difficult to control the temperature inside the filter during combustion by electric heating or high-temperature gas combustion regeneration, and it may become high temperature locally depending on the situation, and the filter may be damaged. In particular, the vanadium contained in the exhaust gas from the combustion of heavy oil C, which is the fuel of a large diesel engine used in ships, has a large adverse effect on ceramics in a high temperature range above 800°C. For example, when vanadium adheres to cordierite In the case of heating and regenerating the state of the manufactured filter, there is a possibility that the filter may melt due to the heat of combustion. Therefore, there is also the need to use expensive silicon carbide and other materials.

本發明係鑑於上述之情況而開發的，其課題之一在於提供一種在附著於陶瓷過濾器之粒子狀物質及油分的潔淨效果優異，且對陶瓷過濾器之損害少之柴油引擎排氣用陶瓷過濾器的再生方法。又，別的課題之一在於提供一種使用那種再生方法之柴油引擎排氣的處理方法。又，另外的課題之一在於提供一種柴油引擎排氣集塵系統。 The present invention was developed in view of the above situation, and one of its problems is to provide a ceramic for diesel engine exhaust with excellent cleaning effect on particulate matter and oil attached to the ceramic filter and less damage to the ceramic filter. How to regenerate the filter. Also, one of the other issues is to provide a method for treating exhaust gas from a diesel engine using that kind of regeneration method. Also, one of the other issues is to provide a diesel engine exhaust dust collection system.

本發明者們係為了解決上述之課題而專心檢討時，發現將高壓氣體回洗與低溫加熱組合之以下的再生方法係有效。 In order to solve the above-mentioned problems, the inventors have intensively examined and found that the following regeneration method combining high-pressure gas backwashing and low-temperature heating is effective.

本發明係在第1側面，是一種柴油引擎排氣用陶瓷過濾器之再生方法，其包含：步驟A，係藉由對以C重油為燃料之柴油引擎排氣中的粒子狀物質及油分所附著的陶瓷過濾器實施使用高壓氣體之回洗，從陶瓷過濾器除去粒子狀物質；及步驟B，係對該陶瓷過濾器加熱至300℃~500℃，從該陶瓷過濾器使油分揮發而除去。 The first aspect of the present invention is a method for regenerating a ceramic filter for diesel engine exhaust. It includes: step A, by analyzing particulate matter and oil in the exhaust gas of diesel engines using heavy oil C as fuel The attached ceramic filter is backwashed with high-pressure gas to remove particulate matter from the ceramic filter; and step B is to heat the ceramic filter to 300°C to 500°C, and remove the oil from the ceramic filter by volatilization .

在本發明之再生方法的一實施形態，該柴油引擎係船舶用主機引擎。 In one embodiment of the regeneration method of the present invention, the diesel engine is a main engine for ships.

在本發明的再生方法之別的一實施形態，步驟B係包含將該陶瓷過濾器加熱至350℃以上。 In another embodiment of the regeneration method of the present invention, step B includes heating the ceramic filter to 350°C or higher.

在本發明的再生方法之另外的一實施形態，包含在步驟B之熱源利用從柴油引擎排氣用集塵機的出口所排出之集塵後的排氣。 In another embodiment of the regeneration method of the present invention, the heat source in step B uses dust-collected exhaust gas discharged from the outlet of a diesel engine exhaust dust collector.

在本發明的再生方法之另外的一實施形態，包含在步驟B之熱源利用副機引擎排氣。 In another embodiment of the regeneration method of the present invention, the heat source in step B uses exhaust gas from the auxiliary engine.

在本發明的再生方法之另外的一實施形態，步驟B係包含以加熱器所加熱的氣體通過該陶瓷過濾器。 In another embodiment of the regeneration method of the present invention, step B includes passing the gas heated by the heater through the ceramic filter.

本發明係在第2側面，是一種柴油引擎排氣之處理方法，係使用2個系統以上的陶瓷過濾器之柴油引擎排氣的處理方法，其包含：該2個系統以上的陶瓷過濾器係構成為可導入以C重油為燃料之共同之柴油引擎的排氣；在對該2個系統以上之陶瓷過濾器中至少1個系統的陶瓷過濾器實施本發明的再生方法中，以與該實施再生方法之至少 1個系統的陶瓷過濾器係不同的至少1個系統的陶瓷過濾器處理該排氣。 The present invention is based on the second aspect. It is a method for processing diesel engine exhaust. It is a method for processing diesel engine exhaust using two or more systems of ceramic filters. It includes: the two or more ceramic filter systems It is configured to be able to introduce the exhaust gas of a common diesel engine fueled by C heavy oil; in the implementation of the regeneration method of the present invention on at least one of the two or more ceramic filters of the ceramic filter system, it is compatible with this implementation In the regeneration method, at least one system of ceramic filters is different from at least one system of ceramic filters to process the exhaust gas.

在本發明之柴油引擎排氣之處理方法的一實施形態，包含：該2個系統以上的陶瓷過濾器係構成為可導入以共同之加熱器所加熱的氣體；對實施本發明的再生方法之該至少1個系統的陶瓷過濾器，導入以該加熱器所加熱的氣體，實施步驟B。 An embodiment of the diesel engine exhaust gas treatment method of the present invention includes: the ceramic filters of the two or more systems are configured to introduce gas heated by a common heater; The at least one ceramic filter of the system introduces the gas heated by the heater, and step B is performed.

在本發明之柴油引擎排氣的處理方法之另外的一實施形態，使用1台或2台以上之收容2個系統以上之陶瓷過濾器的集塵機。 In another embodiment of the diesel engine exhaust gas treatment method of the present invention, one or more dust collectors containing two or more ceramic filters are used.

在本發明之柴油引擎排氣的處理方法之另外的一實施形態，使用2台以上之收容1個系統之陶瓷過濾器的集塵機。 In another embodiment of the diesel engine exhaust gas treatment method of the present invention, two or more dust collectors containing one system of ceramic filters are used.

本發明係進而在第3側面，是一種柴油引擎排氣集塵系統，係使用2個系統以上之陶瓷過濾器的柴油引擎排氣集塵系統，該2個系統以上的陶瓷過濾器係構成為可導入以C重油為燃料之共同之柴油引擎的排氣；構成為可在對該2個系統以上之陶瓷過濾器中至少1個系統的陶瓷過濾器實施本發明的再生方法中，以與該實施再生方法之至少1個系統的陶瓷過濾器係不同的至少1個系統的陶瓷過濾器處理該排氣。 In the third aspect, the present invention is a diesel engine exhaust dust collection system, which is a diesel engine exhaust dust collection system using two or more ceramic filters. The two or more ceramic filters are configured as The exhaust gas of a common diesel engine that uses C heavy oil as fuel can be introduced; it is configured to implement the regeneration method of the present invention on the ceramic filter of at least one of the two or more ceramic filters. The ceramic filter of at least one system for implementing the regeneration method is a ceramic filter of at least one different system for processing the exhaust gas.

在本發明的第3側面之柴油引擎排氣集塵系統的一實施形態，該2個系統以上的陶瓷過濾器係構成為可導入以 共同之加熱器所加熱的氣體；構成為可對實施本發明的再生方法之該至少1個系統的陶瓷過濾器，導入以該加熱器所加熱的氣體，實施步驟B。 In an embodiment of the diesel engine exhaust dust collection system of the third aspect of the present invention, the ceramic filters of the two or more systems are configured to introduce gas heated by a common heater; In the at least one system of ceramic filters in the regeneration method of the invention, the gas heated by the heater is introduced, and step B is performed.

在本發明的第3側面之柴油引擎排氣集塵系統之別的一實施形態，使用1台或2台以上之收容2個系統以上之陶瓷過濾器的集塵機。 In another embodiment of the diesel engine exhaust dust collection system of the third aspect of the present invention, one or more dust collectors containing two or more ceramic filters are used.

在本發明的第3側面之柴油引擎排氣集塵系統之另外的一實施形態，使用2台以上之收容1個系統之陶瓷過濾器的集塵機。 In another embodiment of the diesel engine exhaust dust collection system of the third aspect of the present invention, two or more dust collectors containing one system of ceramic filters are used.

本發明係在第4側面，是一種柴油引擎排氣集塵系統，係包括2個系統以上之陶瓷過濾器、2個系統以上之排氣導入閥、2個系統以上之再生用氣體導入閥、2個系統以上之回洗閥、回洗氣體槽以及加熱器的柴油引擎排氣集塵系統，該2個系統以上的陶瓷過濾器係構成為經由對應之系統的排氣導入閥從上游側可導入以C重油為燃料之共同之柴油引擎的排氣；該2個系統以上的陶瓷過濾器係構成為經由對應之系統的再生用氣體導入閥從上游側可導入以共同之加熱器加熱至300℃~500℃的氣體；該2個系統以上的陶瓷過濾器係構成為經由對應之系統的回洗閥從下游側可導入從回洗氣體槽所供給之回洗氣體。 The present invention is in the fourth aspect. It is a diesel engine exhaust dust collection system, which includes more than two systems of ceramic filters, more than two systems of exhaust gas introduction valves, more than two systems of regeneration gas introduction valves, Diesel engine exhaust dust collection system with two or more systems of backwash valves, backwash gas tanks, and heaters. The ceramic filters of more than two systems are configured to be accessible from the upstream side through the exhaust gas inlet valve of the corresponding system. Introduce exhaust gas from a common diesel engine fueled by C heavy oil; the ceramic filters of the two or more systems are configured to be introduced from the upstream side through the regeneration gas inlet valve of the corresponding system and heated to 300 by a common heater ℃ ~ 500 ℃ gas; the ceramic filters of the two systems or more are configured so that the backwash gas supplied from the backwash gas tank can be introduced from the downstream side through the backwash valve of the corresponding system.

在本發明的第4側面之柴油引擎排氣集塵系統的一實施形態，具備用以將從該2個系統以上之陶瓷過濾器的下游側所排出之集塵後的排氣供給至該加熱器的循環導管。 An embodiment of the diesel engine exhaust dust collection system in the fourth aspect of the present invention is provided with a method for supplying dust collected exhaust gas discharged from the downstream side of the ceramic filter of the two or more systems to the heating Circulation catheter of the device.

在本發明的第4側面之柴油引擎排氣集塵系統之別的一實施形態，該2個系統以上的陶瓷過濾器係構成為經由對應之系統的再生用氣體導入閥從上游側可導入副機引擎排氣。 In another embodiment of the diesel engine exhaust dust collection system of the fourth aspect of the present invention, the ceramic filters of the two or more systems are configured to be introduced from the upstream side through the regeneration gas inlet valve of the corresponding system. Engine exhaust.

在本發明的第4側面之柴油引擎排氣集塵系統之另外的一實施形態，使用1台或2台以上之收容2個系統以上之陶瓷過濾器的集塵機。 In another embodiment of the diesel engine exhaust dust collection system of the fourth aspect of the present invention, one or more dust collectors containing two or more ceramic filters are used.

在本發明的第4側面之柴油引擎排氣集塵系統之另外的一實施形態，使用2台以上之收容1個系統之陶瓷過濾器的集塵機。 In another embodiment of the diesel engine exhaust dust collection system of the fourth aspect of the present invention, two or more dust collectors containing one system of ceramic filters are used.

本發明之柴油引擎排氣用陶瓷過濾器的再生方法係在附著於陶瓷過濾器之粒子狀物質及油分的潔淨效果優異。又，該再生方法係對陶瓷過濾器之損害少。因此，可在長期間穩定地收集油分多之柴油引擎排氣中的粒子狀物質，而集塵機之保養變成容易。因此，本發明係可適合地用於收集使是在船舶所使用之大型柴油引擎的燃料之C重油燃燒的排氣中之粒子狀物質的用途。 The method for regenerating a ceramic filter for diesel engine exhaust of the present invention is excellent in the cleaning effect of particulate matter and oil attached to the ceramic filter. In addition, this regeneration method causes less damage to the ceramic filter. Therefore, it is possible to stably collect particulate matter in the exhaust gas of diesel engines with high oil content over a long period of time, and the maintenance of the dust collector becomes easy. Therefore, the present invention can be suitably used for the purpose of collecting particulate matter in the exhaust gas that burns heavy oil C, which is the fuel of a large diesel engine used in ships.

100:柴油引擎排氣集塵系統 100: Diesel engine exhaust dust collection system

101:柴油引擎 101: diesel engine

102:入口三通閥 102: Inlet three-way valve

103a、103b:排氣導入閥 103a, 103b: Exhaust inlet valve

104a、104b:再生用氣體導入閥 104a, 104b: Regeneration gas inlet valve

105:加熱器 105: heater

106:空氣槽 106: air tank

107a、107b:回洗閥 107a, 107b: backwash valve

110:陶瓷過濾器式集塵機 110: Ceramic filter dust collector

112:罐體 112: Tank

114a、114b:陶瓷過濾器 114a, 114b: ceramic filter

115a、115b:排氣/再生用氣體導入口 115a, 115b: gas inlet for exhaust/regeneration

117:排氣出口 117: Exhaust outlet

118:PM回收箱 118: PM recycling bin

119a、119b:回洗氣體導入口 119a, 119b: Backwash gas inlet

121:排氣導管 121: Exhaust duct

122:旁通導管 122: Bypass Duct

124:排氣導管 124: Exhaust duct

125:循環導管 125: Circulation catheter

126:回洗氣體管 126: Backwash gas pipe

127:外氣導管 127: Outer Air Tube

128:外氣取入口 128: outside air intake

129a、129b:閥 129a, 129b: valve

130:排氣風扇 130: exhaust fan

131:再生風扇 131: Regenerative fan

200:柴油引擎排氣集塵系統 200: Diesel engine exhaust dust collection system

201:二行程柴油引擎 201: Two-stroke diesel engine

202:入口三通閥 202: Inlet three-way valve

203a、203b、203c:排氣導入閥 203a, 203b, 203c: exhaust inlet valve

204a、204b、204c:再生用氣體導入閥 204a, 204b, 204c: Regeneration gas inlet valve

205:加熱器 205: heater

206:空氣槽 206: air tank

207a、207b、207c:回洗閥 207a, 207b, 207c: backwash valve

210a、210b、210c:陶瓷過濾器式集塵機 210a, 210b, 210c: ceramic filter type dust collector

214a、214b、214c:陶瓷過濾器 214a, 214b, 214c: ceramic filter

215a、215b、215c:排氣/再生用氣體導入口 215a, 215b, 215c: gas inlet for exhaust/regeneration

217a、217b、217c:排氣出口 217a, 217b, 217c: exhaust outlet

219a、219b、219c:回洗氣體導入口 219a, 219b, 219c: backwash gas inlet

220:四行程柴油引擎 220: Four-stroke diesel engine

221:排氣導管 221: Exhaust duct

222:旁通導管 222: Bypass Duct

223:排氣導管 223: Exhaust duct

224:排氣導管 224: Exhaust duct

225:循環導管 225: Circulation catheter

226:回洗氣體管 226: Backwash gas pipe

227:外氣導管 227: Outer Air Tube

228:外氣取入口 228: Outer Air Intake

229a、229b:閥 229a, 229b: valve

230:排氣風扇 230: exhaust fan

231:再生風扇 231: Regenerative Fan

400:柱狀陶瓷過濾器 400: Cylindrical ceramic filter

401:第1槽 401: Slot 1

402:第2槽 402: slot 2

404:粒子狀物質 404: Particulate Matter

406:清洗用氣體 406: Cleaning Gas

第1圖係可應用本發明之陶瓷過濾器式集塵機的再生方法之柴油引擎排氣集塵系統的構成例。 Figure 1 is an example of the configuration of a diesel engine exhaust dust collection system to which the regeneration method of the ceramic filter type dust collector of the present invention can be applied.

第2圖係設置複數台陶瓷過濾器式集塵機時之柴油引擎排氣集塵系統的構成例。 Figure 2 is an example of the configuration of a diesel engine exhaust dust collection system when a plurality of ceramic filter-type dust collectors are installed.

第3圖係來自船舶主機之排氣中的油分所附著之煤的TG-DTA測量結果。 Figure 3 is the TG-DTA measurement result of coal attached to the oil in the exhaust gas from the main engine of the ship.

第4圖係說明藉柱狀陶瓷過濾器之集塵及回洗之機制的模式圖。 Figure 4 is a schematic diagram illustrating the mechanism of dust collection and backwashing with cylindrical ceramic filters.

(1.本發明之作為對象的排氣及集塵機) (1. Exhaust and dust collector targeted by the present invention)

柴油燃料係有輕油、A重油、C重油等。其中C重油係常用作大型船舶用柴油燃料，但是在使用C重油之柴油引擎的排氣中有油分(SOF)比使用其他的柴油燃料時多的傾向。例如，以n-己烷吸收重量法(日本環保署公告64號)測量時，含有10mg/Nm3以上的油分(正己烷抽出物質)，亦有的含有20mg/Nm3以上的油分，更有的含有30mg/Nm3以上的油分。又，因為C重油係品質差的油，所以有燃料中含有很多釩或鎳之金屬成分的傾向。因此，以具備陶瓷過濾器之集塵機(在本專利說明書，有時將具備陶瓷過濾器之集塵機稱為「陶瓷過濾器式集塵機」)處理以C重油為燃料的柴油引擎排氣時，發生在其他的燃料不成問題之過濾器再生時的問題。 Diesel fuel includes light oil, A heavy oil, C heavy oil and so on. Among them, C-heavy oil is often used as diesel fuel for large ships, but there is a tendency that there is more oil content (SOF) in the exhaust gas of diesel engines using C-heavy oil than when other diesel fuels are used. For example, when measured by the n-hexane absorption gravimetric method (Japan Environmental Protection Agency Announcement No. 64), it contains oil content above 10mg/Nm 3 (n-hexane extractable substance), and some contains oil content above 20 mg/Nm 3 , and more Contains more than 30mg/Nm 3 oil. In addition, because C heavy oil is a poor quality oil, the fuel tends to contain a lot of metal components such as vanadium or nickel. Therefore, when a dust collector with a ceramic filter is used (in this patent specification, a dust collector with a ceramic filter is sometimes referred to as a "ceramic filter dust collector"), when the exhaust gas of a diesel engine that uses C heavy oil as fuel is processed, it occurs in other The fuel is not a problem when the filter is regenerated.

在一般之過濾式集塵機，過濾器所收集之粒子狀物質的量變大，而在過濾器的上游及下游間的差壓變大時，從過濾器除去粒子狀物質，進行過濾器之再生。作為過濾器之再生方法，列舉藉高壓空氣之回洗或藉電性加熱或高溫氣體的燃燒再生，但是如上述所示，在這些方法，對用以收集以C重油為燃料之柴油引擎排氣中的粒子狀物質(PM)之陶瓷過濾器式集塵機的再生係不適合。相對地，本發明係可適合地用於用以 收集以C重油為燃料之柴油引擎排氣中的粒子狀物質(PM)之陶瓷過濾器式集塵機的再生。 In a general filter type dust collector, the amount of particulate matter collected by the filter increases, and when the differential pressure between the upstream and downstream of the filter increases, the particulate matter is removed from the filter and the filter is regenerated. As the regeneration method of the filter, exemplified by high-pressure air backwashing or by electric heating or high-temperature gas combustion regeneration, but as shown above, in these methods, for the collection of diesel engine exhaust gas fueled by C heavy oil Particulate matter (PM) in the ceramic filter type dust collector is not suitable for the regeneration system. In contrast, the present invention can be suitably used for the regeneration of a ceramic filter dust collector for collecting particulate matter (PM) in the exhaust gas of a diesel engine fueled by heavy oil C.

C重油係根據JIS規格(K2205：1991)的分類。與C重油對應之國際性名稱係MFO(Marine Fuel Oil：船舶用燃料油)、HFO(Heavy Fuel Oil：重質燃料油)以及RFO(Residual Fuel Oil：殘渣燃料油)。作為參考，在第1表表示與A重油及C重油對應之國際性名稱。 C heavy oil is classified according to JIS standards (K2205: 1991). The international names corresponding to C heavy oil are MFO (Marine Fuel Oil), HFO (Heavy Fuel Oil), and RFO (Residual Fuel Oil). For reference, Table 1 shows the international names corresponding to A heavy oil and C heavy oil.

Figure 106146224-A0202-12-0009-1
Figure 106146224-A0202-12-0009-1

在船舶被搭載用以使船前進之主機引擎、及用以產生在船中所使用之電力的副機引擎。副機引擎係採用四行程引擎，排氣溫度亦高達350℃以上之比較高溫，排氣中之油分亦少，但是主機引擎係一般是二行程引擎，二行程引擎係因為燃燒效率高，所以排氣溫度係約250℃之比較低溫，排氣中之油分遠比一樣使用C重油之船舶副機引擎多。因此，本發明係尤其可適合地用於用以收集以C重油為燃料之船舶用主機引擎排氣中的粒子狀物質(PM)之陶瓷過濾器式集塵機的再生。 The main engine used to move the ship forward and the auxiliary engine used to generate electricity used in the ship are mounted on the ship. The auxiliary engine adopts a four-stroke engine, and the exhaust temperature is as high as 350℃ or higher, and the oil in the exhaust gas is also low. However, the main engine is generally a two-stroke engine. The air temperature is a relatively low temperature of about 250°C, and the oil in the exhaust gas is far more than that of the ship's auxiliary engine that uses C heavy oil. Therefore, the present invention is particularly suitable for the regeneration of a ceramic filter dust collector for collecting particulate matter (PM) in the exhaust gas of a main engine of a ship using C heavy oil as fuel.

作為陶瓷過濾器式集塵機，已知各式各樣者，本發明係尤其可對各種的陶瓷過濾器式集塵機無限制地使用。作為陶瓷過濾器之材料，係無限定，舉例表示堇青石製、碳化矽 質製。其中尤其價格便宜的堇青石製較佳。作為陶瓷過濾器之構造，係無限定，列舉具有藉多孔質之間壁所劃分形成的複數個槽之蜂巢構造。在排氣通過槽內之間，從排氣分離並收集粒子狀物質(PM)。陶瓷過濾器的形狀係無限定，可採用多角柱(四角柱等)或圓柱等之柱狀。在柱狀過濾器，可構成為使處理前之氣體從一方之底面流入，再使處理後之氣體從另一方之底面流出，藉此，可進行集塵處理。 Various types of ceramic filter type dust collectors are known, and the present invention is particularly applicable to various ceramic filter type dust collectors without limitation. The material of the ceramic filter is not limited, and examples include cordierite and silicon carbide products. Among them, cordierite, which is inexpensive, is particularly preferred. The structure of the ceramic filter is not limited, and a honeycomb structure having a plurality of grooves partitioned by a porous wall is exemplified. Between the exhaust gas passing through the tank, particulate matter (PM) is separated and collected from the exhaust gas. The shape of the ceramic filter is not limited, and a polygonal column (square column, etc.) or a columnar shape such as a cylinder can be used. The columnar filter can be configured such that the gas before treatment flows in from one bottom surface, and the gas after treatment flows out from the other bottom surface, thereby enabling dust collection treatment.

例如，如第4圖所示，列舉具有上游側之端面開口且下游側之端面被封閉的複數個第1槽401、與上游側之端面被封閉且下游側之端面開口的複數個第2槽402之蜂巢構造的柱狀陶瓷過濾器400。在這種柱狀陶瓷過濾器400，根據如以下所示之機制收集粒子狀物質404(參照第4圖之左圖)。排氣被供給至上游側之端面時，排氣係被導入第1槽401，並在第1槽401內朝向下游前進。第1槽401係因為下游側之端面被封閉，所以排氣係透過劃分第1槽401與第2槽402之多孔質的間壁，流入第2槽。粒子狀物質404係因為無法通過間壁，所以被收集於第1槽401內。排氣中之油分亦一樣地被收集於第1槽401內。流入第2槽402之排氣係在第2槽402內朝向下游前進，再從下游側的端面被排出。 For example, as shown in Figure 4, there are a plurality of first grooves 401 having an upstream end surface open and a downstream end surface closed, and a plurality of second grooves having an upstream end surface closed and a downstream end surface open. 402 is a cylindrical ceramic filter 400 with a honeycomb structure. In this cylindrical ceramic filter 400, the particulate matter 404 is collected according to the mechanism shown below (refer to the left diagram of FIG. 4). When the exhaust gas is supplied to the end surface on the upstream side, the exhaust system is introduced into the first groove 401 and advances downstream in the first groove 401. Since the end surface of the first groove 401 is closed on the downstream side, the exhaust system passes through the porous partition wall dividing the first groove 401 and the second groove 402 and flows into the second groove. Since the particulate matter 404 cannot pass through the partition wall, it is collected in the first tank 401. The oil in the exhaust gas is also collected in the first tank 401 in the same manner. The exhaust gas flowing into the second groove 402 advances downstream in the second groove 402, and is discharged from the downstream end surface.

又，這種柱狀陶瓷過濾器400之回洗係可如以下所示進行(參照第4圖之右圖)。朝向柱狀陶瓷過濾器400之下游側的端面噴射清洗用氣體406時，清洗用氣體406係在柱狀陶瓷過濾器400的第2槽402內朝向上游前進。第2槽402係因為上游側之端面被封閉，所以清洗用氣體406係透過劃分第 1槽401與第2槽402之多孔質的間壁，流入第1槽401。流入第1槽401之清洗用氣體406係在第1槽401內朝向上游前進，伴隨第1槽401內所收集之粒子狀物質404，從上游側之端面被排出。但，第1槽401內所收集之油分係無法藉回洗充分地排出。 In addition, the backwashing system of the columnar ceramic filter 400 can be performed as follows (refer to the right diagram of FIG. 4). When the cleaning gas 406 is sprayed toward the downstream end surface of the columnar ceramic filter 400, the cleaning gas 406 is moved upstream in the second tank 402 of the columnar ceramic filter 400. Since the end surface of the upstream side of the second tank 402 is closed, the cleaning gas 406 penetrates the porous partition wall dividing the first tank 401 and the second tank 402 and flows into the first tank 401. The cleaning gas 406 flowing into the first tank 401 advances upstream in the first tank 401, and is discharged from the upstream end surface along with the particulate matter 404 collected in the first tank 401. However, the oil collected in the first tank 401 cannot be discharged sufficiently by backwashing.

此外，在本專利說明書，陶瓷過濾器之上游側係意指集塵前之排氣流入陶瓷過濾器之側，陶瓷過濾器之下游側係意指集塵後之排氣從陶瓷過濾器流出之側。 In addition, in this patent specification, the upstream side of the ceramic filter refers to the side where the exhaust gas before dust collection flows into the ceramic filter, and the downstream side of the ceramic filter refers to the side where the exhaust gas after dust collection flows out of the ceramic filter. side.

(2.陶瓷過濾器之再生方法) (2. Regeneration method of ceramic filter)

在對以使用C重油之柴油引擎排氣為對象之陶瓷過濾器式集塵機的陶瓷過濾器進行再生時，如何在避免對過濾器之損害下除去油分是重要。在本發明，油分係揮發，但是對石墨係採用以不燃燒之程度的低溫對陶瓷過濾器加熱的方法。藉此，可在不損害除去油分之過濾器下高效率地進行。因此，在本發明之柴油引擎排氣用陶瓷過濾器之再生方法的一實施形態，包含：步驟A，係藉由對以C重油為燃料之柴油引擎排氣中的粒子狀物質及油分所附著的陶瓷過濾器實施使用高壓氣體之回洗，從陶瓷過濾器除去粒子狀物質；及步驟B，係對該陶瓷過濾器加熱至300℃~500℃，從該陶瓷過濾器使油分揮發而除去。 When regenerating the ceramic filter of the ceramic filter type dust collector for diesel engine exhaust using C heavy oil, it is important to remove the oil without damaging the filter. In the present invention, the oil is volatilized, but for graphite, a method of heating the ceramic filter at a low temperature that is not combustible is used. This can be performed efficiently without damaging the oil removal filter. Therefore, in an embodiment of the method for regenerating a ceramic filter for diesel engine exhaust of the present invention, it includes: Step A, by attaching particulate matter and oil in the diesel engine exhaust with C heavy oil as fuel The ceramic filter is backwashed with high-pressure gas to remove particulate matter from the ceramic filter; and step B is to heat the ceramic filter to 300°C to 500°C, and volatilize the oil from the ceramic filter to remove.

在步驟A，藉由實施使用高壓氣體之回洗，從陶瓷過濾器除去粒子狀物質。作為高壓氣體，可使用例如表壓力為0.1MPa以上，典型上為0.2~1MPa，更典型上為0.3~0.7MPa的壓縮氣體。作為高壓氣體之種類，係無限定，除了空氣以外， 還列舉氮氣及氬氣等惰性氣體、水蒸汽。使用其中尤其價格便宜、具有泛用性之空氣較佳。一次之回洗所需的時間或回洗的頻率係根據粒子狀物質之收集量適當地設定即可。 In step A, the particulate matter is removed from the ceramic filter by performing backwashing using high-pressure gas. As the high-pressure gas, for example, a compressed gas having a gauge pressure of 0.1 MPa or more, typically 0.2 to 1 MPa, and more typically 0.3 to 0.7 MPa. The type of high-pressure gas is not limited. In addition to air, inert gases such as nitrogen and argon, and water vapor are also exemplified. Among them, it is better to use air which is cheap and has general-purpose properties. The time required for one backwashing or the frequency of backwashing can be appropriately set according to the collected amount of particulate matter.

在步驟A，主要從陶瓷過濾器除去粒子狀物質。粒子狀物質係包含煤或灰塵。油分本身或油分所大量地附著的粒子狀物質係難藉回洗從陶瓷過濾器充分地除去。 In step A, the particulate matter is mainly removed from the ceramic filter. The particulate matter includes coal or dust. The oil itself or the particulate matter attached to the oil in a large amount is difficult to sufficiently remove from the ceramic filter by backwashing.

在步驟B，對陶瓷過濾器加熱而從該陶瓷過濾器使油分揮發而除去。在第3圖，表示來自船舶主機之排氣中的油分所附著之煤的TG-DTA測量結果。從TG曲線，觀察到從300℃附近重量減少，並在350℃附近重量急速地減少。又，觀察DTA曲線時，從該溫度附近發熱量變大，在388.9℃發熱量變成最大。從該結果，認為表示加熱至300℃以上時，煤中的油分揮發，並在390℃附近一部分開始燃燒。 In step B, the ceramic filter is heated to volatilize and remove the oil from the ceramic filter. Figure 3 shows the TG-DTA measurement results of coal to which the oil in the exhaust gas from the main engine of the ship is attached. From the TG curve, it was observed that the weight decreased from around 300°C, and the weight decreased rapidly around 350°C. Also, when observing the DTA curve, the calorific value increases from around this temperature, and the calorific value becomes the largest at 388.9°C. From this result, it is considered that when it is heated to 300°C or higher, the oil in the coal volatilizes, and part of the coal starts to burn around 390°C.

因此，為了從陶瓷過濾器使油分揮發而除去，對陶瓷過濾器加熱至300℃以上較佳，加熱至350℃以上更佳。 Therefore, in order to volatilize and remove the oil from the ceramic filter, it is better to heat the ceramic filter to 300°C or higher, and more preferably to 350°C or higher.

另一方面，使加熱溫度過高時，煤中的石墨開始燃燒，因為因燃燒熱而溫度更上升，所以溫度控制變難。釩對陶瓷過濾器的損害亦無法忽視。又，加熱所需之能源消耗量亦變大，而不合乎經濟。因此，在從陶瓷過濾器使油分揮發而除去時的加熱溫度係採用500℃以下較佳，採用450℃以下更佳。一次之加熱操作所需的時間或加熱操作的頻率係根據油分之收集量適當地設定即可。 On the other hand, when the heating temperature is too high, the graphite in the coal starts to burn, and the temperature rises further due to the combustion heat, so temperature control becomes difficult. The damage of vanadium to ceramic filters cannot be ignored. In addition, the energy consumption required for heating has also become large, which is not economical. Therefore, the heating temperature at the time of volatilizing and removing the oil from the ceramic filter is preferably 500°C or less, and more preferably 450°C or less. The time required for one heating operation or the frequency of heating operation can be appropriately set according to the amount of oil collected.

在對陶瓷過濾器加熱時，若作成加熱至300~500℃的氣體通過陶瓷過濾器，因為所揮發之油分易伴隨氣體被排 出，所以較佳。所加熱之氣體係與排氣一樣地從陶瓷過濾器之上游側流至下游側較佳。作為用以對陶瓷過濾器加熱的熱源，想到使用利用液體燃料或電力等之加熱器。亦可構成為以加熱器所加熱的氣體通過陶瓷過濾器。 When heating the ceramic filter, if the gas heated to 300~500°C is made to pass through the ceramic filter, the volatilized oil is easy to be discharged with the gas, so it is better. The heated gas system preferably flows from the upstream side to the downstream side of the ceramic filter in the same manner as the exhaust gas. As a heat source for heating the ceramic filter, it is conceivable to use a heater using liquid fuel or electricity. It can also be configured to pass the gas heated by the heater through the ceramic filter.

可是，在利用加熱器對外氣加熱或對過濾器直接加熱的情況，因為需要從周圍溫度加熱至300℃以上，所以能源消耗量變大。因此，利用廢熱來加熱較佳。例如，可循環地利用從以使用C重油之柴油引擎排氣為對象之陶瓷過濾器式集塵機的出口所排出之潔淨的排氣。因為從陶瓷過濾器式集塵機的出口所排出之排氣的溫度係例如約250℃，所以加熱至所需溫度所需的能源量可少。 However, when the heater is used to heat the outside air or directly heat the filter, since it is necessary to heat from the ambient temperature to 300°C or higher, the energy consumption increases. Therefore, it is better to use waste heat for heating. For example, it is possible to recycle the clean exhaust gas discharged from the outlet of a ceramic filter type dust collector for diesel engine exhaust using C heavy oil. Since the temperature of the exhaust gas discharged from the outlet of the ceramic filter type dust collector is, for example, about 250°C, the amount of energy required for heating to the required temperature can be reduced.

又，在來自副機引擎之排氣中的油分少的情況(例如5mg/Nm3以下)，亦可藉由該排氣通過陶瓷過濾器，對陶瓷過濾器加熱。在來自副機引擎之排氣溫度是300℃以上的情況，連加熱器都不需要。在陶瓷過濾器使來自副機引擎之排氣通過時，亦可得到一面以陶瓷過濾器收集該排氣中的粒子狀物質，一面可使陶瓷過濾器內的油分揮發而除去的優點。 In addition, when the oil content in the exhaust gas from the auxiliary engine is low (for example, 5 mg/Nm 3 or less), the ceramic filter can be heated by the exhaust gas passing through the ceramic filter. When the temperature of the exhaust gas from the auxiliary engine is above 300°C, even a heater is not needed. When the ceramic filter passes the exhaust gas from the auxiliary engine, the ceramic filter can collect the particulate matter in the exhaust gas and the oil in the ceramic filter can be volatilized and removed.

在實施步驟A及步驟B之順序係無特別限制，因應於陶瓷過濾器所收集之粒子狀物質及油分對步驟A與步驟B適當地組合並實施即可。因此，亦可在實施步驟A後實施步驟B，亦可在實施步驟B後實施步驟A。亦可交互地實施步驟A及步驟B。亦可在實施步驟A複數次後實施步驟B，亦可在實施步驟B複數次後實施步驟A。 There are no particular restrictions on the order of performing step A and step B, and step A and step B can be appropriately combined and implemented in accordance with the particulate matter and oil collected by the ceramic filter. Therefore, step B may be performed after step A is performed, or step A may be performed after step B is performed. It is also possible to implement step A and step B interactively. Step B may be implemented after step A is implemented multiple times, or step A may be implemented after step B is implemented multiple times.

(3.柴油引擎排氣之處理方法) (3. Treatment method of diesel engine exhaust)

在陶瓷過濾器之再生中，為了使柴油引擎排氣的處理不遲滯，準備複數個系統的陶瓷過濾器，使用與再生中之陶瓷過濾器係不同的陶瓷過濾器進行柴油引擎排氣之處理較佳。 In the regeneration of the ceramic filter, in order to make the treatment of diesel engine exhaust gas not lag, prepare multiple systems of ceramic filters, and use a ceramic filter which is different from the ceramic filter system in the regeneration process for the treatment of diesel engine exhaust gas. good.

因此，本發明係進而提供一種柴油引擎排氣之處理方法，是使用2個系統以上之陶瓷過濾器之柴油引擎排氣的處理方法，其包含：該2個系統以上之陶瓷過濾器係構成為可導入以C重油為燃料之共同之柴油引擎的排氣；在對該2個系統以上之陶瓷過濾器中至少1個系統的陶瓷過濾器實施本發明之陶瓷過濾器的再生方法中，以與該實施再生方法之至少1個系統的陶瓷過濾器係不同的至少1個系統的陶瓷過濾器處理該排氣。 Therefore, the present invention further provides a diesel engine exhaust treatment method, which is a diesel engine exhaust treatment method using two or more systems of ceramic filters, which includes: the two or more ceramic filters are configured as The exhaust gas of a common diesel engine that uses C heavy oil as fuel can be introduced; in the ceramic filter of at least one of the two or more ceramic filters, the ceramic filter regeneration method of the present invention can be used with The ceramic filter of at least one system for implementing the regeneration method is a ceramic filter of at least one different system for processing the exhaust gas.

該2個系統以上之陶瓷過濾器係各自可構成為可導入以加熱器所加熱的氣體。藉由以加熱器所加熱的氣體通過陶瓷過濾器，可使附著於陶瓷過濾器的油分揮發而除去。加熱器係對1個系統之陶瓷過濾器設置各一台亦可，但是亦可不是設想全部的系統之陶瓷過濾器同時接受再生所需的加熱處理。因此，若考慮經濟性，該2個系統以上之集塵機係在構成為可導入以共同的加熱器所加熱的氣體下，對實施陶瓷過濾器的再生方法之至少1個系統的陶瓷過濾器選擇性地導入以加熱器所加熱的氣體，實施步驟B較佳。 The ceramic filters of the two or more systems can each be configured to be able to introduce gas heated by a heater. By passing the gas heated by the heater through the ceramic filter, the oil attached to the ceramic filter can be volatilized and removed. The heaters may be provided with one ceramic filter for each system, but it is not possible to assume that the ceramic filters of all systems receive the heating treatment required for regeneration at the same time. Therefore, considering economic efficiency, the dust collectors of the two or more systems are configured to introduce the gas heated by a common heater, and are selective to the ceramic filter of at least one system of the ceramic filter regeneration method. The gas heated by the heater is introduced locally, and step B is better.

在本發明之柴油引擎排氣之處理方法的一實施形態，2個系統以上的陶瓷過濾器之各個的陶瓷過濾器係經過在 排氣之集塵處理所使用的時間帶、與再生所需的時間帶，並交互地重複這些時間帶。在排氣之集塵處理所使用的時間帶、與再生所需之時間帶的切換係因應於排氣之集塵處理之性能的降低程度適當地設定即可，例如可至少根據時間及/或過濾器之差壓進行。 In one embodiment of the diesel engine exhaust gas treatment method of the present invention, the ceramic filters of each of the two or more ceramic filters are passed through the time zone used in the dust collection treatment of the exhaust gas and the required regeneration Time zones, and repeat these time zones interactively. The time zone used in the exhaust dust collection process and the time zone required for regeneration can be switched appropriately according to the degree of degradation of the exhaust dust collection process performance. For example, it can be at least based on time and/or The differential pressure of the filter is carried out.

上述之柴油引擎排氣的處理方法係亦可藉由使用1台或2台以上之收容2個系統以上之陶瓷過濾器的集塵機來實施，亦可藉由使用2台以上之收容1個系統之陶瓷過濾器的集塵機來實施。又，亦可採用將收容2個系統以上之陶瓷過濾器的集塵機與收容1個系統之陶瓷過濾器的集塵機組合的方式來實施。此外，1個系統之陶瓷過濾器係意指被收容於同一集塵機內的同一室內，排氣處理及再生之時序係相同的陶瓷過濾器。即使在同一室內使用複數支陶瓷過濾器的情況，亦只要滿足該條件，那些複數支陶瓷過濾器係構成1個系統之陶瓷過濾器。 The above-mentioned diesel engine exhaust treatment method can also be implemented by using one or more dust collectors containing more than two systems of ceramic filters, or by using two or more than one system of The dust collector of the ceramic filter is implemented. In addition, it can also be implemented by combining a dust collector accommodating more than two systems of ceramic filters and a dust collector accommodating one system of ceramic filters. In addition, a ceramic filter of one system means a ceramic filter that is housed in the same room in the same dust collector, and the timing of exhaust treatment and regeneration is the same. Even if multiple ceramic filters are used in the same room, as long as this condition is met, those multiple ceramic filters constitute a system of ceramic filters.

(4.柴油引擎排氣集塵系統) (4. Diesel engine exhaust dust collection system)

以下，一面參照圖面，一面說明利用本發明之陶瓷過濾器的再生方法之柴油引擎排氣之處理方法的具體例。在第1圖，記載可應用本發明之陶瓷過濾器式集塵機的再生方法之柴油引擎排氣集塵系統的構成例。柴油引擎排氣集塵系統100包括：與來自在燃料使用C重油之柴油引擎101的排氣導管121連接的入口三通閥102、2個系統之排氣導入閥103a、103b、2個系統之再生用氣體導入閥104a、104b、陶瓷過濾器式集塵機110、加熱器105、空氣槽106、以及2個系統之回洗 閥107a、107b。陶瓷過濾器式集塵機110包括罐體112、罐體112內所收容之2個系統的陶瓷過濾器114a、114b、2個系統之排氣/再生用氣體導入口115a、115b、排氣出口117、PM回收箱118以及2個系統之回洗氣體導入口119a、119b。柴油引擎排氣集塵系統100係進而為了降低對引擎的背壓，亦有將排氣風扇230設置於陶瓷過濾器式集塵機110之下游側的情況。 Hereinafter, with reference to the drawings, a specific example of a diesel engine exhaust gas treatment method using the ceramic filter regeneration method of the present invention will be described. In Fig. 1, a configuration example of a diesel engine exhaust dust collection system to which the regeneration method of the ceramic filter type dust collector of the present invention can be applied is described. The diesel engine exhaust dust collection system 100 includes: an inlet three-way valve 102 connected to the exhaust duct 121 of a diesel engine 101 using heavy oil as the fuel, two systems of exhaust gas inlet valves 103a, 103b, and one of the two systems Regeneration gas introduction valves 104a, 104b, ceramic filter type dust collector 110, heater 105, air tank 106, and two systems of backwash valves 107a, 107b. The ceramic filter type dust collector 110 includes a tank 112, two systems of ceramic filters 114a, 114b contained in the tank 112, two systems of exhaust/regeneration gas inlets 115a, 115b, and an exhaust outlet 117, PM recovery box 118 and backwash gas inlets 119a and 119b of the two systems. In the diesel engine exhaust dust collection system 100, in order to reduce the back pressure on the engine, the exhaust fan 230 may be installed on the downstream side of the ceramic filter type dust collector 110.

在排氣導管121流動之來自柴油引擎101的排氣係在入口三通閥102，進行被送往陶瓷過濾器式集塵機110或被送往旁通導管122的切換。排氣係在被送往陶瓷過濾器式集塵機110的情況，被進行集塵處理，而在緊急時等被送往旁通導管122的情況，在仍然未處理下從煙囪被排出。 The exhaust from the diesel engine 101 flowing through the exhaust duct 121 is switched to the inlet three-way valve 102 to be sent to the ceramic filter type dust collector 110 or sent to the bypass duct 122. When the exhaust system is sent to the ceramic filter type dust collector 110, it is subjected to dust collection processing, and when it is sent to the bypass duct 122 in an emergency, it is discharged from the chimney without processing.

陶瓷過濾器式集塵機110係在罐體112內具備2個系統之陶瓷過濾器114a、114b。罐體112內係被分成第一系統用之室112a與第二系統用之室112b，在過濾器之上游側係兩室內之氣體不混合。第一系統之陶瓷過濾器114a係可對通過第一系統之排氣導入閥103a後，從第一系統之排氣/再生用氣體導入口115a被導入第一系統用之室112a內的排氣進行集塵處理。第二系統之陶瓷過濾器114b係可對通過第二系統之排氣導入閥103b後，從第二系統之排氣/再生用氣體導入口115b被導入第二系統用之室112b內的排氣進行集塵處理。 The ceramic filter type dust collector 110 is equipped with two systems of ceramic filters 114a and 114b in the tank 112. The inside of the tank 112 is divided into a chamber 112a for the first system and a chamber 112b for the second system. On the upstream side of the filter, the gases in the two chambers are not mixed. The ceramic filter 114a of the first system is capable of introducing the exhaust gas into the chamber 112a of the first system from the exhaust/regeneration gas inlet 115a of the first system after passing through the exhaust gas introduction valve 103a of the first system Carry out dust collection treatment. The ceramic filter 114b of the second system can be used for the exhaust gas which is introduced into the chamber 112b of the second system from the exhaust/regeneration gas inlet 115b of the second system after passing through the exhaust gas introduction valve 103b of the second system Carry out dust collection treatment.

根據2個系統之排氣導入閥103a、103b之開閉的切換，決定藉第一系統及第二系統之任一個的陶瓷過濾器進行排氣之集塵處理。亦可打開2個系統之排氣導入閥103a、103b的雙方，以2個系統之陶瓷過濾器114a、114b同時進行集塵 處理，但是在以一方之陶瓷過濾器進行集塵處理中，另一方之陶瓷過濾器係作為再生中，交互地進行集塵處理，這在防止故障上較佳。 According to the switching of the opening and closing of the exhaust gas inlet valves 103a and 103b of the two systems, it is determined that the ceramic filter of either the first system or the second system should be used for dust collection treatment of the exhaust gas. It is also possible to open both the exhaust introduction valves 103a and 103b of the two systems, and the ceramic filters 114a and 114b of the two systems can be used for dust collection at the same time. However, when one of the ceramic filters is used for dust collection, the other The ceramic filter is used as a regeneration process, which performs alternate dust collection treatment, which is better in preventing malfunctions.

排氣係在陶瓷過濾器114a、114b接受集塵處理而變成潔淨後，從陶瓷過濾器式集塵機110的排氣出口117被排出。從陶瓷過濾器式集塵機110的排氣出口117所排出的排氣係通過排氣導管124後，從煙囪最後可釋出至大氣。 The exhaust system is exhausted from the exhaust outlet 117 of the ceramic filter type dust collector 110 after the ceramic filters 114a and 114b are subjected to dust collection processing and become clean. The exhaust system discharged from the exhaust outlet 117 of the ceramic filter type dust collector 110 passes through the exhaust duct 124, and finally can be released to the atmosphere from the chimney.

柴油引擎排氣集塵系統100係進而可具備循環導管125，該循環導管125係用以將從陶瓷過濾器114a、114b的下游側所排出之集塵後的排氣供給至加熱器105。循環導管125係可一方與排氣導管124連結，另一方與陶瓷過濾器式集塵機110直接或間接地連結。再生風扇131、加熱器105被設置於循環導管125的中途。從排氣出口117所排出之潔淨的排氣係在循環導管125流動，並在通過加熱器105時被加熱至所要之溫度。已加熱的氣體係藉2個系統之再生用氣體導入閥104a、104b之開閉的切換，可供給至第一系統及第二系統之任一方或雙方的陶瓷過濾器。 The diesel engine exhaust dust collection system 100 may further include a circulation duct 125 for supplying the dust-collected exhaust gas discharged from the downstream side of the ceramic filters 114 a and 114 b to the heater 105. One side of the circulation duct 125 may be connected to the exhaust duct 124, and the other may be directly or indirectly connected to the ceramic filter type dust collector 110. The regeneration fan 131 and the heater 105 are installed in the middle of the circulation duct 125. The clean exhaust system discharged from the exhaust outlet 117 flows through the circulation duct 125, and is heated to a desired temperature when passing through the heater 105. The heated gas system can be supplied to the ceramic filter of either or both of the first system and the second system by switching the opening and closing of the regeneration gas introduction valves 104a and 104b of the two systems.

第一系統之陶瓷過濾器114a係可藉通過第一系統之再生用氣體導入閥104a後，從第一系統之排氣/再生用氣體導入口115a被導入第一系統用之室112a內的再生用氣體接受加熱再生處理(步驟B)。第二系統之陶瓷過濾器114b係可藉通過第二系統之再生用氣體導入閥104b後，從第二系統之排氣/再生用氣體導入口115b被導入第二系統用之室112b內的再生用氣體接受加熱再生處理(步驟B)。 The ceramic filter 114a of the first system can be introduced into the chamber 112a of the first system from the exhaust/regeneration gas inlet 115a of the first system after passing through the regeneration gas introduction valve 104a of the first system. The gas is heated and regenerated (step B). The ceramic filter 114b of the second system can be introduced into the second system room 112b from the exhaust/regeneration gas inlet 115b of the second system after passing through the regeneration gas introduction valve 104b of the second system. The gas is heated and regenerated (step B).

觀察第1圖，第一系統之排氣導入閥103a成為「打開」，而第一系統之再生用氣體導入閥104a成為「關閉」。因此，得知來自柴油引擎101之排氣流入第一系統之陶瓷過濾器114a，係藉第一系統之陶瓷過濾器114a實施集塵處理中。又，第二系統之排氣導入閥103b成為「關閉」，而第二系統之再生用氣體導入閥104b成為「打開」。因此，得知第二系統之陶瓷過濾器114b係使用以加熱器105所加熱的再生氣體實施步驟B中(油分之揮發除去)。 Looking at Figure 1, the exhaust gas introduction valve 103a of the first system becomes "open", and the regeneration gas introduction valve 104a of the first system becomes "closed". Therefore, it is known that the exhaust gas from the diesel engine 101 flows into the ceramic filter 114a of the first system, and the dust collection process is performed by the ceramic filter 114a of the first system. In addition, the exhaust gas introduction valve 103b of the second system becomes "closed", and the regeneration gas introduction valve 104b of the second system becomes "open". Therefore, it is known that the ceramic filter 114b of the second system uses the regeneration gas heated by the heater 105 to perform step B (oil removal by volatilization).

亦可柴油引擎排氣集塵系統100係構成為可替代循環導管125，或不僅循環導管125，還設置供給外氣的外氣導管127，將外氣供給至陶瓷過濾器式集塵機110。第1圖所示之柴油引擎排氣集塵系統100係在加熱器105的前段將外氣導管127與循環導管125連結，該外氣導管127係可使利用再生風扇131所產生之吸力從外氣取入口128所取入的外氣流動。在加熱器105的前段，閥129a、129b分別被設置於循環導管125及外氣導管127，藉閥129a、129b之開閉或開度可調整從兩者通過加熱器105之氣體流量。根據該構成，可僅使來自循環導管125的排氣流至加熱器105，並可僅使來自外氣導管127之外氣流至加熱器105，或亦可使來自循環導管125的排氣與來自外氣導管127之外氣的雙方同時流至加熱器105。 The diesel engine exhaust dust collection system 100 may be configured to replace the circulation duct 125, or not only the circulation duct 125 but also an outside air duct 127 for supplying outside air is provided to supply the outside air to the ceramic filter type dust collector 110. The diesel engine exhaust dust collection system 100 shown in Figure 1 connects the external air duct 127 with the circulation duct 125 in the front section of the heater 105. The external air duct 127 can make use of the suction force generated by the regeneration fan 131 from the outside The outside air taken in by the air intake port 128 flows. In the front section of the heater 105, valves 129a and 129b are respectively provided in the circulation duct 125 and the external air duct 127, and the flow of gas passing through the heater 105 from both can be adjusted by the opening and closing or opening of the valves 129a and 129b. According to this configuration, only the exhaust gas from the circulation duct 125 can be flowed to the heater 105, and only the exhaust gas from the outside air duct 127 can be flowed to the heater 105, or the exhaust gas from the circulation duct 125 can be combined with the heater 105. Both of the external air in the external air duct 127 flow to the heater 105 at the same time.

又，回洗氣體導入口119a、119b分別被配置於2個系統之陶瓷過濾器114a、114b的下游側。第一系統之陶瓷過濾器114a係藉從空氣槽106流出後，在回洗氣體管126流動，再通過第一系統之回洗閥107a後，從第一系統之回洗氣 體導入口119a所流入的壓縮氣體接受回洗。第二系統之陶瓷過濾器114b係藉從空氣槽106流出後，在回洗氣體管126流動，再通過第二系統之回洗閥107b後，從第二系統之回洗氣體導入口119b所流入的壓縮氣體接受回洗。壓縮氣體係根據該2個系統之回洗閥107a、107b之開閉的切換，決定被送至第一系統及第二系統之任一個的陶瓷過濾器。 In addition, the backwash gas inlets 119a and 119b are respectively arranged on the downstream side of the ceramic filters 114a and 114b of the two systems. The ceramic filter 114a of the first system flows out from the air tank 106, flows through the backwash gas pipe 126, and then passes through the backwash valve 107a of the first system, and flows in from the backwash gas inlet 119a of the first system The compressed gas is backwashed. The ceramic filter 114b of the second system flows out from the air tank 106, flows through the backwash gas pipe 126, and then passes through the backwash valve 107b of the second system, and flows in from the backwash gas inlet 119b of the second system The compressed gas is backwashed. The compressed gas system determines the ceramic filter to be sent to either the first system or the second system according to the switching of the backwash valves 107a and 107b of the two systems.

藉回洗從陶瓷過濾器114a、114b之上游側所排出的粒子狀物質係可藉重力落下，並被回收至在罐體112之底部所設置的PM回收箱118內。 The particulate matter discharged from the upstream side of the ceramic filters 114a and 114b by backwashing can fall by gravity and be recovered in the PM recovery box 118 provided at the bottom of the tank 112.

接著，在第2圖表示可應用本發明之陶瓷過濾器式集塵機之再生方法的柴油引擎排氣集塵系統之別的構成例。在第1圖所示之柴油引擎排氣集塵系統100，係2個系統之陶瓷過濾器114a、114b被設置於一台陶瓷過濾器式集塵機110內，藉由對2個系統之陶瓷過濾器114a、114b交互地切換集塵處理與過濾器再生，可繼續地進行排氣之處理的系統。相對地，在第2圖所示之柴油引擎排氣集塵系統200，一台陶瓷過濾器式集塵機係僅具有1個系統之陶瓷過濾器，並並列地配置複數台那種陶瓷過濾器式集塵機210a、210b、210c。關於複數台陶瓷過濾器式集塵機210a、210b、210c，藉由依序地切換集塵處理與過濾器再生，可繼續地進行排氣之處理。 Next, Fig. 2 shows another configuration example of the diesel engine exhaust dust collection system to which the regeneration method of the ceramic filter type dust collector of the present invention can be applied. In the diesel engine exhaust dust collection system 100 shown in Figure 1, two systems of ceramic filters 114a, 114b are installed in a ceramic filter type dust collector 110, and the two systems of ceramic filters 114a, 114b is a system that alternately switches between dust collection treatment and filter regeneration, and can continue to perform exhaust gas treatment. In contrast, in the diesel engine exhaust dust collection system 200 shown in Figure 2, a ceramic filter type dust collector has only one system of ceramic filters, and a plurality of such ceramic filter type dust collectors are arranged side by side. 210a, 210b, 210c. Regarding a plurality of ceramic filter type dust collectors 210a, 210b, 210c, by sequentially switching the dust collection treatment and filter regeneration, the exhaust gas treatment can be continued.

柴油引擎排氣集塵系統200包括與來自船舶主機之二行程柴油引擎201的排氣導管221連接的入口三通閥202、3個系統之排氣導入閥203a、203b、203c、3個系統之再生用氣體導入閥204a、204b、204c、3台之陶瓷過濾器式集塵 機210a、210b、210c、加熱器205、空氣槽206、以及3個系統之回洗閥207a、207b、207c。陶瓷過濾器式集塵機210a、210b、210c係分別包括1個系統之排氣/再生用氣體導入口215a、215b、215c、1個系統之排氣出口217a、217b、217c、以及1個系統之回洗氣體導入口219a、219b、219c。柴油引擎排氣集塵系統200係進而為了降低對引擎的背壓，亦有將排氣風扇230設置於陶瓷過濾器式集塵機210a、210b、210c之下游側的情況。 The diesel engine exhaust dust collection system 200 includes an inlet three-way valve 202 connected to the exhaust duct 221 of the two-stroke diesel engine 201 from the main engine of the ship, three systems of exhaust gas introduction valves 203a, 203b, 203c, and one of the three systems Regeneration gas inlet valves 204a, 204b, 204c, three ceramic filter type dust collectors 210a, 210b, 210c, heater 205, air tank 206, and three systems of backwash valves 207a, 207b, 207c. The ceramic filter type dust collector 210a, 210b, 210c includes 1 system of exhaust/regeneration gas inlets 215a, 215b, 215c, 1 system of exhaust outlets 217a, 217b, 217c, and 1 system of return Wash gas inlets 219a, 219b, and 219c. In the diesel engine exhaust dust collection system 200, in order to reduce the back pressure on the engine, the exhaust fan 230 may be installed on the downstream side of the ceramic filter type dust collectors 210a, 210b, and 210c.

在排氣導管221流動之來自柴油引擎201的排氣係在入口三通閥202，進行被送往陶瓷過濾器式集塵機210a、210b、210c或被送往旁通導管222的切換。排氣係在被送往陶瓷過濾器式集塵機210a、210b、210c的情況，被進行集塵處理，而在緊急時等被送往旁通導管222的情況，在仍然未處理下從煙囪被排出。 The exhaust from the diesel engine 201 flowing through the exhaust duct 221 is switched to the ceramic filter type dust collector 210a, 210b, 210c or the bypass duct 222 at the inlet three-way valve 202. When the exhaust system is sent to the ceramic filter type dust collectors 210a, 210b, 210c, it is processed for dust collection, and when it is sent to the bypass duct 222 in an emergency, it is discharged from the chimney without processing. .

3台陶瓷過濾器式集塵機210a、210b、210c係分別具有1個系統之陶瓷過濾器214a、214b、214c。第一系統之陶瓷過濾器214a係可對通過第一系統之排氣導入閥203a後，從第一系統之排氣/再生用氣體導入口215a被導入第一系統之陶瓷過濾器式集塵機210a內的排氣進行集塵處理。第二系統之陶瓷過濾器214b係可對通過第二系統之排氣導入閥203b後，從第二系統之排氣/再生用氣體導入口215b被導入第二系統之陶瓷過濾器式集塵機210b內的排氣進行集塵處理。第三系統之陶瓷過濾器214c係可對通過第三系統之排氣導入閥203c後，從第三系統之排氣/再生用氣體導入口215c被導入第 三系統之陶瓷過濾器式集塵機210c內的排氣進行集塵處理。 The three ceramic filter type dust collectors 210a, 210b, and 210c each have one system of ceramic filters 214a, 214b, and 214c. The ceramic filter 214a of the first system can be introduced into the ceramic filter type dust collector 210a of the first system from the exhaust/regeneration gas inlet 215a of the first system after passing through the exhaust gas introduction valve 203a of the first system Exhaust gas for dust collection treatment. The ceramic filter 214b of the second system can be introduced into the ceramic filter type dust collector 210b of the second system from the exhaust/regeneration gas inlet 215b of the second system after passing through the exhaust gas introduction valve 203b of the second system Exhaust gas for dust collection treatment. The ceramic filter 214c of the third system can be introduced into the ceramic filter type dust collector 210c of the third system from the exhaust/regeneration gas inlet 215c of the third system after passing through the exhaust introduction valve 203c of the third system Exhaust gas for dust collection treatment.

根據3個系統之排氣導入閥203a、203b、203c之開閉的切換，決定藉第一系統、第二系統以及第三系統之任一個的陶瓷過濾器進行排氣之集塵處理。亦可將3個系統之排氣導入閥203a、203b、203c全打開，而以3個系統之陶瓷過濾器214a、214b、214c同時進行集塵處理，亦可僅打開2個系統之排氣導入閥，而以2個系統之陶瓷過濾器同時進行集塵處理，亦可僅打開1個系統之排氣導入閥，而以1個系統之陶瓷過濾器進行集塵處理。 According to the switching of the opening and closing of the exhaust introduction valves 203a, 203b, and 203c of the three systems, it is decided to use the ceramic filter of any one of the first system, the second system and the third system to perform the dust collection treatment of the exhaust gas. It is also possible to fully open the exhaust inlet valves 203a, 203b, and 203c of 3 systems, and use the ceramic filters 214a, 214b, 214c of 3 systems for dust collection at the same time, or to open only the exhaust inlets of 2 systems Valve, and two systems of ceramic filters are used for dust collection at the same time. It is also possible to open only one system of exhaust inlet valve and use one system of ceramic filters for dust collection.

排氣係在陶瓷過濾器214a、214b、214c接受集塵處理而變成潔淨後，從陶瓷過濾器式集塵機210a、210b、210c的排氣出口217a、217b、217c被排出。排氣出口217a、217b、217c所排出的排氣係通過排氣導管224後，從煙囪最後可釋出至大氣。 The exhaust system is exhausted from exhaust outlets 217a, 217b, and 217c of the ceramic filter-type dust collectors 210a, 210b, and 210c after the ceramic filters 214a, 214b, and 214c are subjected to dust collection processing and become clean. After the exhaust system discharged from the exhaust outlets 217a, 217b, 217c passes through the exhaust duct 224, it can finally be released to the atmosphere from the chimney.

又，3台陶瓷過濾器式集塵機210a、210b、210c係分別與來自船舶副機之四行程柴油引擎220的排氣導管223連結。在排氣導管223流動之排氣藉3個系統之再生用氣體導入閥204a、204b、204c之開閉的切換，可供給至第一系統、第二系統以及第三系統之任一個、兩個或全部的陶瓷過濾器。在來自船舶副機之四行程柴油引擎220之排氣中的油分少，且該排氣之溫度位於300~500℃之範圍的情況，可將該排氣直接用作再生用氣體。 In addition, the three ceramic filter type dust collectors 210a, 210b, and 210c are respectively connected to the exhaust duct 223 of the four-stroke diesel engine 220 from the auxiliary engine of the ship. The exhaust gas flowing in the exhaust duct 223 can be supplied to any one, two or two of the first system, the second system, and the third system by switching the regeneration gas introduction valves 204a, 204b, and 204c of the three systems. All ceramic filters. When the exhaust gas from the four-stroke diesel engine 220 of the auxiliary engine of the ship contains little oil and the temperature of the exhaust gas is in the range of 300 to 500°C, the exhaust gas can be directly used as regeneration gas.

第一系統之陶瓷過濾器214a係可藉通過第一系統之再生用氣體導入閥204a後，從第一系統之排氣/再生用氣體 導入口215a被導入第一系統之陶瓷過濾器式集塵機210a內的再生用氣體接受加熱再生處理(步驟B)。第二系統之陶瓷過濾器214b係可藉通過第二系統之再生用氣體導入閥204b後，從第二系統之排氣/再生用氣體導入口215b被導入第二系統之陶瓷過濾器式集塵機210b內的再生用氣體接受加熱再生處理(步驟B)。第三系統之陶瓷過濾器214c係可藉通過第三系統之再生用氣體導入閥204c後，從第三系統之排氣/再生用氣體導入口215c被導入第三系統之陶瓷過濾器式集塵機210c內的再生用氣體接受加熱再生處理(步驟B)。 The ceramic filter 214a of the first system can be introduced into the ceramic filter type dust collector 210a of the first system from the exhaust/regeneration gas inlet 215a of the first system after passing through the regeneration gas introduction valve 204a of the first system The regeneration gas inside is subjected to heating regeneration treatment (step B). The ceramic filter 214b of the second system can be introduced into the ceramic filter type dust collector 210b of the second system from the exhaust/regeneration gas inlet 215b of the second system after passing through the regeneration gas introduction valve 204b of the second system The regeneration gas inside is subjected to heating regeneration treatment (step B). The ceramic filter 214c of the third system can be introduced into the ceramic filter type dust collector 210c of the third system from the exhaust/regeneration gas inlet 215c of the third system after passing through the regeneration gas introduction valve 204c of the third system The regeneration gas inside is subjected to heating regeneration treatment (step B).

觀察第2圖，第一系統之排氣導入閥203a及第二系統之排氣導入閥203b成為「打開」，而第一系統之再生用氣體導入閥204a及第二系統之再生用氣體導入閥204b成為「關閉」。因此，得知來自柴油引擎201之排氣流入第一系統之陶瓷過濾器式集塵機210a及第二系統之陶瓷過濾器式集塵機210b，係藉第一系統之陶瓷過濾器214a及第二系統之陶瓷過濾器214b實施集塵處理中。又，第三系統之排氣導入閥203c成為「關閉」，而第三系統之再生用氣體導入閥204c成為「打開」。因此，得知再生用氣體流入第三系統之陶瓷過濾器式集塵機210c，第三系統之陶瓷過濾器214c係使用再生氣體實施步驟B中(油分之揮發除去)。但，第三系統之陶瓷過濾器214c係在再生中，亦可收集來自船舶副機的四行程柴油引擎220之排氣中的粒子狀物質。 Looking at Figure 2, the exhaust inlet valve 203a of the first system and the exhaust inlet valve 203b of the second system are "open", and the regeneration gas introduction valve 204a of the first system and the regeneration gas introduction valve of the second system 204b becomes "closed". Therefore, it is known that the exhaust from the diesel engine 201 flows into the ceramic filter type dust collector 210a of the first system and the ceramic filter type dust collector 210b of the second system through the ceramic filter 214a of the first system and the ceramics of the second system The filter 214b is performing dust collection processing. In addition, the exhaust gas introduction valve 203c of the third system becomes "closed", and the regeneration gas introduction valve 204c of the third system becomes "open". Therefore, it is known that the regeneration gas flows into the ceramic filter-type dust collector 210c of the third system, and the ceramic filter 214c of the third system uses the regeneration gas to perform step B (removal of oil by volatilization). However, the ceramic filter 214c of the third system is during regeneration, and can also collect particulate matter in the exhaust from the four-stroke diesel engine 220 of the marine auxiliary engine.

亦可柴油引擎排氣集塵系統200係構成為可替代排氣導管223，或不僅排氣導管223，還設置供給外氣的外氣 導管227，將外氣供給至陶瓷過濾器式集塵機210a、210b、210c。第2圖所示之柴油引擎排氣集塵系統200係將外氣導管227與排氣導管223連結，該外氣導管227係可使利用再生風扇231所產生之吸力從外氣取入口228所取入的外氣流動。在外氣導管227的中途加熱器205被設置於再生風扇231的後段，可將所取得之外氣加熱至所要的溫度。閥229a被設置於外氣導管227，藉閥229a之開閉或開度可調整外氣的導入量。外氣的導入量係因應於來自船舶副機的四行程柴油引擎220之排氣的溫度、流量以及油分濃度等，調整成滿足適合作為再生用氣體之條件即可。 The diesel engine exhaust dust collection system 200 may be configured to replace the exhaust duct 223, or not only the exhaust duct 223, but also an outside air duct 227 for supplying outside air to supply the outside air to the ceramic filter type dust collector 210a, 210b, 210c. The diesel engine exhaust dust collection system 200 shown in Figure 2 connects the external air duct 227 and the exhaust duct 223, and the external air duct 227 can make use of the suction force generated by the regeneration fan 231 from the external air intake 228. The taken-in outside air flows. The heater 205 in the middle of the outside air duct 227 is installed at the rear stage of the regeneration fan 231, and can heat the obtained outside air to a desired temperature. The valve 229a is provided in the external air duct 227, and the amount of external air introduced can be adjusted by the opening and closing or opening degree of the valve 229a. The amount of external air introduced depends on the temperature, flow rate, and oil concentration of the exhaust gas from the four-stroke diesel engine 220 from the auxiliary engine of the ship, and can be adjusted to meet the conditions suitable for regeneration gas.

柴油引擎排氣集塵系統200係進而，可具備循環導管225，該循環導管225係用以將從陶瓷過濾器214a、214b、214c的下游側所排出之集塵後的排氣供給至加熱器205。循環導管225係可一方與排氣導管224連結，另一方與陶瓷過濾器式集塵機210a、210b、210c直接或間接地連結。在圖示之實施形態，循環導管225係在再生風扇231的前段且加熱器205的前段與外氣導管227連結。在與外氣導管227連結的前段，閥229b被設置於循環導管225，可藉閥229b的開閉或開度來調整經由循環導管225並通過加熱器205之氣體流量。 The diesel engine exhaust dust collection system 200 may further include a circulation duct 225 for supplying dust collected exhaust gas discharged from the downstream side of the ceramic filters 214a, 214b, and 214c to the heater 205. One side of the circulation duct 225 may be connected to the exhaust duct 224, and the other may be directly or indirectly connected to the ceramic filter-type dust collectors 210a, 210b, and 210c. In the illustrated embodiment, the circulation duct 225 is connected to the front section of the regeneration fan 231 and the front section of the heater 205 is connected to the outside air duct 227. A valve 229b is installed in the circulation conduit 225 at the front stage connected to the external air conduit 227, and the flow rate of the gas passing through the circulation conduit 225 and passing through the heater 205 can be adjusted by the opening and closing or opening of the valve 229b.

又，回洗氣體導入口219a、219b、219c分別被配置於3個系統之陶瓷過濾器式集塵機210a、210b、210c的下游側。第一系統之陶瓷過濾器214a係可藉從空氣槽206流出後，在回洗氣體管226流動，再通過第一系統之回洗閥207a後，從第一系統之回洗氣體導入口219a流入第一系統之陶瓷 過濾器式集塵機210a的壓縮氣體接受回洗。第二系統之陶瓷過濾器214b係藉從空氣槽206流出後，在回洗氣體管226流動，再通過第二系統之回洗閥207b後，從第二系統之回洗氣體導入口219b流入第二系統之陶瓷過濾器式集塵機210b的壓縮氣體接受回洗。第三系統之陶瓷過濾器214c係藉從空氣槽206流出後，在回洗氣體管226流動，再通過第三系統之回洗閥207c後，從第三系統之回洗氣體導入口219c流入第三系統之陶瓷過濾器式集塵機210c的壓縮氣體接受回洗。壓縮氣體係根據該3個系統之回洗閥207a、207b、207c之開閉的切換，決定被送至第一系統、第二系統以及第三系統之任一個的陶瓷過濾器。 In addition, the backwash gas inlets 219a, 219b, and 219c are respectively arranged on the downstream side of the ceramic filter type dust collectors 210a, 210b, and 210c of the three systems. The ceramic filter 214a of the first system can flow through the backwash gas pipe 226 after flowing out from the air tank 206, and then flow through the backwash gas inlet 219a of the first system after passing through the backwash valve 207a of the first system The compressed gas of the ceramic filter type dust collector 210a of the first system is backwashed. The ceramic filter 214b of the second system flows out from the air tank 206, flows through the backwash gas pipe 226, and then passes through the backwash valve 207b of the second system, and flows into the second system from the backwash gas inlet 219b of the second system. The compressed gas of the ceramic filter type dust collector 210b of the second system is backwashed. The ceramic filter 214c of the third system flows out from the air tank 206, flows through the backwash gas pipe 226, and then passes through the backwash valve 207c of the third system, and flows into the second system from the backwash gas inlet 219c of the third system. The compressed gas of the ceramic filter type dust collector 210c of the three systems is backwashed. The compressed gas system determines the ceramic filter to be sent to any one of the first system, the second system, and the third system according to the switching of the backwash valves 207a, 207b, and 207c of the three systems.

[實施例] [Example]

以下，根據實施例，更具體地說明本發明，但是本發明係絲毫未被這些實施例限定。 Hereinafter, the present invention will be explained more specifically based on examples, but the present invention is not limited by these examples at all.

(第1實施例) (First embodiment)

將第1圖所示之柴油引擎排氣集塵系統設置於船舶，進行來自使用C重油之主機的二行程柴油引擎之排氣的集塵處理，藉此，驗證本發明之效果。對該排氣取樣，依據JIS Z8808：2013測量灰塵濃度時，係110mg/Nm3，並依據n-己烷吸收重量法測量油分時，係35mg/Nm3。此外，在依據JIS Z8808：2013所測量之灰塵係亦包含煤。 The diesel engine exhaust dust collection system shown in Figure 1 is installed on a ship, and the dust collection process of the exhaust gas from the two-stroke diesel engine of the main engine using C heavy oil is carried out to verify the effect of the present invention. When sampling the exhaust gas, when the dust concentration is measured according to JIS Z8808: 2013, it is 110 mg/Nm 3 , and when measuring the oil content according to the n-hexane absorption gravimetric method, it is 35 mg/Nm 3 . In addition, the dust system measured in accordance with JIS Z8808:2013 also includes coal.

運轉條件係如以下所示。 The operating conditions are as follows.

˙柴油引擎排氣溫度：在約150~350℃根據時間帶而變動。 ˙Diesel engine exhaust temperature: It varies from 150 to 350℃ depending on the time zone.

˙過濾器：日本碍子股份有限公司製堇青石製過濾器(商 品名稱：

Figure 106146224-A0202-12-0025-6
)。 ˙Filter: Cordierite filter manufactured by Nippon Gardner Co., Ltd. (product name:
Figure 106146224-A0202-12-0025-6
).

˙回洗(步驟A)頻率：1次/約30分鐘。 ˙Frequency of backwashing (step A): 1 time/about 30 minutes.

˙回洗方法：藉一次之回洗處理，噴射表壓力0.5MPa之壓縮氣體0.1秒鐘。 ˙Backwashing method: With one backwashing treatment, compressed gas with a pressure of 0.5MPa on the gauge is injected for 0.1 second.

˙加熱再生(步驟B)頻率：1次/約6小時。 ˙Frequency of heating regeneration (step B): 1 time/about 6 hours.

˙加熱再生方法：對一次之加熱再生，在過濾器使以電熱器加熱至450℃的外氣通過約30分鐘，藉此實施。 ˙Heating regeneration method: For one-time heating regeneration, the outside air heated to 450°C with an electric heater is passed through the filter for about 30 minutes to implement it.

˙2個系統之過濾器114a、114b之集塵/再生的切換時序：根據實施加熱再生之時序切換。 ˙The switching timing of dust collection/regeneration of the filters 114a and 114b of the two systems: switch according to the timing of heating regeneration.

根據以上之運轉條件進行排氣之集塵處理時，從測試開始1100小時過濾器之差壓係穩定，可繼續地進行排氣之集塵處理。 When performing the dust collection treatment of exhaust gas according to the above operating conditions, the differential pressure of the filter is stable for 1100 hours from the start of the test, and the dust collection treatment of exhaust gas can be continued.

(第1比較例) (Comparative Example 1)

除了停止過濾器之加熱再生處理以外，係按照與第1實施例一樣的運轉條件進行排氣之集塵處理。在此情況，因為在運轉時間約100小時，過濾器之差壓上升至約2倍，所以停止柴油引擎排氣集塵系統之運轉。 Except for stopping the heating and regeneration treatment of the filter, the exhaust dust collection treatment was carried out under the same operating conditions as in the first embodiment. In this case, because the differential pressure of the filter rises to about 2 times during the operation time of about 100 hours, the operation of the diesel engine exhaust dust collection system is stopped.

從以上之測試結果，可理解本發明係對以C重油為燃料之船舶主機二行程柴油引擎之排氣的集塵處理具有極高的實用性。 From the above test results, it can be understood that the present invention has extremely high practicability for the dust collection treatment of the exhaust gas of the two-stroke diesel engine of the main engine of a ship using C heavy oil as fuel.

100‧‧‧柴油引擎排氣集塵系統 100‧‧‧Diesel engine exhaust dust collection system

101‧‧‧柴油引擎 101‧‧‧Diesel engine

102‧‧‧入口三通閥 102‧‧‧Inlet three-way valve

103a、103b‧‧‧排氣導入閥 103a, 103b‧‧‧Exhaust inlet valve

104a、104b‧‧‧再生用氣體導入閥 104a, 104b‧‧‧Gas inlet valve for regeneration

105‧‧‧加熱器 105‧‧‧Heater

106‧‧‧空氣槽 106‧‧‧Air tank

107a、107b‧‧‧回洗閥 107a, 107b‧‧‧Backwash valve

110‧‧‧陶瓷過濾器式集塵機 110‧‧‧Ceramic filter dust collector

112‧‧‧罐體 112‧‧‧Tank body

112a‧‧‧第一系統用之室 112a‧‧‧Room for the first system

112b‧‧‧第二系統用之室 112b‧‧‧Room for the second system

114a、114b‧‧‧陶瓷過濾器 114a, 114b‧‧‧ceramic filter

115a、115b‧‧‧排氣/再生用氣體導入口 115a, 115b‧‧‧Exhaust/regeneration gas inlet

117‧‧‧排氣出口 117‧‧‧Exhaust outlet

118‧‧‧PM回收箱 118‧‧‧PM recycling box

119a、119b‧‧‧回洗氣體導入口 119a, 119b‧‧‧Backwash gas inlet

121‧‧‧排氣導管 121‧‧‧Exhaust duct

122‧‧‧旁通導管 122‧‧‧Bypass duct

124‧‧‧排氣導管 124‧‧‧Exhaust duct

125‧‧‧循環導管 125‧‧‧Circulation catheter

126‧‧‧回洗氣體管 126‧‧‧Backwash gas pipe

127‧‧‧外氣導管 127‧‧‧External air duct

128‧‧‧外氣取入口 128‧‧‧External air intake

129a、129b‧‧‧閥 129a, 129b‧‧‧valve

130‧‧‧排氣風扇 130‧‧‧Exhaust Fan

131‧‧‧再生風扇 131‧‧‧Regenerative fan

Claims (19)

一種柴油引擎排氣用陶瓷過濾器之再生方法，包含：步驟A，係藉由對以C重油為燃料之作為船舶用主機引擎使用之二行程柴油引擎排氣中的粒子狀物質及油分所附著的陶瓷過濾器實施使用高壓氣體之回洗，從陶瓷過濾器除去粒子狀物質；及步驟B，係藉由使作為副機引擎使用之四行程柴油引擎的排氣通過該陶瓷過濾器，對該陶瓷過濾器加熱至300℃~500℃，從該陶瓷過濾器使油分揮發而除去。 A method of regenerating a ceramic filter for diesel engine exhaust, including: step A, by attaching particulate matter and oil in the exhaust gas of a two-stroke diesel engine that uses heavy oil as fuel as the main engine of a ship The ceramic filter implements backwashing using high-pressure gas to remove particulate matter from the ceramic filter; and step B is to pass the exhaust gas of a four-stroke diesel engine used as an auxiliary engine through the ceramic filter to The ceramic filter is heated to 300°C to 500°C, and the oil is volatilized and removed from the ceramic filter. 如申請專利範圍第1項之再生方法，其中該四行程柴油引擎係以C重油為燃料。 For example, the regeneration method of item 1 in the scope of patent application, wherein the four-stroke diesel engine uses C heavy oil as fuel. 如申請專利範圍第1或2項之再生方法，其中步驟B係包含將該陶瓷過濾器加熱至350℃以上。 For example, the regeneration method of item 1 or 2 in the scope of patent application, wherein step B includes heating the ceramic filter to 350°C or higher. 如申請專利範圍第1或2項之再生方法，其中包含在步驟B之熱源利用從柴油引擎排氣用集塵機的出口所排出之集塵後的排氣。 Such as the regeneration method of item 1 or 2 in the scope of patent application, which includes the heat source in step B using dust-collected exhaust gas discharged from the outlet of a diesel engine exhaust dust collector. 如申請專利範圍第1或2項之再生方法，其中該四行程柴油引擎的排氣中的油分為5mg/Nm3以下。 For example, the regeneration method of item 1 or 2 in the scope of patent application, wherein the oil content in the exhaust gas of the four-stroke diesel engine is 5 mg/Nm 3 or less. 如申請專利範圍第1或2項之再生方法，其中步驟B係包含以加熱器所加熱的氣體通過該陶瓷過濾器。 Such as the regeneration method of item 1 or 2 in the scope of patent application, wherein step B includes passing the gas heated by the heater through the ceramic filter. 一種柴油引擎排氣之處理方法，係使用2個系統以上的陶瓷過濾器之柴油引擎排氣的處理方法，其包含：該2個系統以上的陶瓷過濾器係構成為可導入以作為船舶用主機引擎使用之C重油為燃料之共同之二行程柴油引擎 的排氣；在對該2個系統以上之陶瓷過濾器中至少1個系統的陶瓷過濾器實施如申請專利範圍第1至6項中任一項的再生方法中，以與該實施再生方法之至少1個系統的陶瓷過濾器係不同的至少1個系統的陶瓷過濾器處理該排氣。 A method for processing diesel engine exhaust gas, which is a method for processing diesel engine exhaust gas using two or more systems of ceramic filters, which includes: the two or more systems of ceramic filters are configured to be introduced as main engines for ships The common two-stroke diesel engine using C heavy oil as the fuel Exhaust; in the ceramic filter of at least one of the ceramic filters of more than two systems in the implementation of the regeneration method of any one of items 1 to 6 of the scope of patent application, to be the same as the implementation of the regeneration method The ceramic filter of at least one system is a ceramic filter of at least one different system to process the exhaust gas. 如申請專利範圍第7項之柴油引擎排氣的處理方法，其中包含：該2個系統以上的陶瓷過濾器係構成為可導入以共同之加熱器所加熱的氣體；對實施如申請專利範圍第1至6項中任一項的再生方法之該至少1個系統的陶瓷過濾器，導入以該加熱器所加熱的氣體，實施步驟B。 For example, the treatment method of diesel engine exhaust gas of the seventh item of the scope of patent application includes: the ceramic filters of the two systems or more are configured to introduce gas heated by a common heater; In the regeneration method of any one of items 1 to 6, the at least one system of ceramic filters is introduced into the gas heated by the heater, and step B is implemented. 如申請專利範圍第7或8項之柴油引擎排氣的處理方法，其中使用1台或2台以上之收容2個系統以上之陶瓷過濾器的集塵機。 For example, the treatment method of diesel engine exhaust gas of item 7 or 8 of the scope of patent application, which uses 1 or more dust collectors containing more than 2 systems of ceramic filters. 如申請專利範圍第7或8項之柴油引擎排氣的處理方法，其中使用2台以上之收容1個系統之陶瓷過濾器的集塵機。 For example, the treatment method of diesel engine exhaust gas of item 7 or 8 of the scope of patent application, which uses two or more dust collectors containing one system of ceramic filters. 一種柴油引擎排氣集塵系統，係使用2個系統以上之陶瓷過濾器的柴油引擎排氣集塵系統，該2個系統以上的陶瓷過濾器係構成為可導入以作為船舶用主機引擎使用之C重油為燃料之共同之二行程柴油引擎的排氣；構成為可在對該2個系統以上之陶瓷過濾器中至少1個系統的陶瓷過濾器實施如申請專利範圍第1至6項中任一項 的再生方法中，以與該實施再生方法之至少1個系統的陶瓷過濾器係不同的至少1個系統的陶瓷過濾器處理該排氣。 A diesel engine exhaust dust collection system is a diesel engine exhaust dust collection system that uses more than two systems of ceramic filters. The ceramic filters of more than two systems are configured to be introduced to be used as main engines for ships The exhaust gas of a common two-stroke diesel engine with C heavy oil as the fuel; the structure can be implemented in the ceramic filter of at least one of the two or more ceramic filters, as in any of the patent applications 1 to 6 One item In the regeneration method of, the exhaust gas is treated with a ceramic filter of at least one system different from the ceramic filter of at least one system of the implementation of the regeneration method. 如申請專利範圍第11項之柴油引擎排氣集塵系統，其中該2個系統以上的陶瓷過濾器係構成為可導入以共同之加熱器所加熱的氣體；構成為可對實施如申請專利範圍第1至6項中任一項的再生方法之該至少1個系統的陶瓷過濾器，導入以該加熱器所加熱的氣體，實施步驟B。 For example, the diesel engine exhaust dust collection system of item 11 of the scope of patent application, wherein the ceramic filters of the two systems or more are configured to introduce gas heated by a common heater; In the regeneration method of any one of items 1 to 6, the at least one system of ceramic filters is introduced into the gas heated by the heater, and step B is implemented. 如申請專利範圍第11或12項之柴油引擎排氣集塵系統，其中使用1台或2台以上之收容2個系統以上之陶瓷過濾器的集塵機。 For example, the diesel engine exhaust dust collection system of item 11 or 12 of the scope of patent application, which uses 1 or more dust collectors containing ceramic filters of more than 2 systems. 如申請專利範圍第11或12項之柴油引擎排氣集塵系統，其中使用2台以上之收容1個系統之陶瓷過濾器的集塵機。 For example, the diesel engine exhaust dust collection system of item 11 or 12 of the scope of patent application, which uses more than 2 dust collectors containing one system of ceramic filters. 一種柴油引擎排氣集塵系統，係包括2個系統以上之陶瓷過濾器、2個系統以上之排氣導入閥、2個系統以上之再生用氣體導入閥、2個系統以上之回洗閥、以及回洗氣體槽的柴油引擎排氣集塵系統，該2個系統以上的陶瓷過濾器係構成為經由對應之系統的排氣導入閥從上游側可導入作為船舶用主機引擎使用之以C重油為燃料之共同之二行程柴油引擎的排氣；該2個系統以上的陶瓷過濾器係構成為經由對應之系統的再生用氣體導入閥從上游側可導入作為副機引擎使用之四行程柴油引擎的排氣； 該2個系統以上的陶瓷過濾器係構成為經由對應之系統的回洗閥從下游側可導入從回洗氣體槽所供給之回洗氣體。 A diesel engine exhaust dust collection system, which includes more than 2 systems of ceramic filters, more than 2 systems of exhaust inlet valves, more than 2 systems of regeneration gas inlet valves, more than 2 systems of backwash valves, And the diesel engine exhaust dust collection system for backwashing the gas tank. The ceramic filters of the two or more systems are configured to be imported from the upstream side through the exhaust gas introduction valve of the corresponding system. C heavy oil used as the main engine of the ship The exhaust gas of a two-stroke diesel engine common to the fuel; the ceramic filter of the two or more systems is configured to be introduced from the upstream side through the regeneration gas inlet valve of the corresponding system to the four-stroke diesel engine used as the auxiliary engine Exhaust The ceramic filters of the two or more systems are configured so that the backwash gas supplied from the backwash gas tank can be introduced from the downstream side through the backwash valve of the corresponding system. 如申請專利範圍第15項之柴油引擎排氣集塵系統，其中該2個系統以上的陶瓷過濾器係，構成為經由對應之系統的再生用氣體導入閥從上游側可導入以共同之加熱器加熱至300℃~500℃的氣體。 For example, the diesel engine exhaust dust collection system of item 15 of the scope of patent application, in which the ceramic filters of the two or more systems are configured to be introduced from the upstream side with a common heater through the regeneration gas inlet valve of the corresponding system Gas heated to 300℃~500℃. 如申請專利範圍第16項之柴油引擎排氣集塵系統，其中具備用以將從該2個系統以上之陶瓷過濾器的下游側所排出之集塵後的排氣供給至該加熱器的循環導管。 For example, the diesel engine exhaust dust collection system of item 16 of the scope of patent application includes a circulation for supplying the dust-collected exhaust gas discharged from the downstream side of the ceramic filters of the two or more systems to the heater catheter. 如申請專利範圍第15或16項之柴油引擎排氣集塵系統，其中使用1台或2台以上之收容2個系統以上之陶瓷過濾器的集塵機。 For example, the diesel engine exhaust dust collection system of item 15 or 16 of the scope of patent application, which uses 1 or more dust collectors containing ceramic filters of more than 2 systems. 如申請專利範圍第15或16項之柴油引擎排氣集塵系統，其中使用2台以上之收容1個系統之陶瓷過濾器的集塵機。 For example, the diesel engine exhaust dust collection system of the 15th or 16th patent application, which uses two or more dust collectors containing one system of ceramic filters.
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