KR100724994B1 - Highly efficient charge air moisturizing device for internal combustion engine - Google Patents

Highly efficient charge air moisturizing device for internal combustion engine Download PDF

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KR100724994B1
KR100724994B1 KR1020050131094A KR20050131094A KR100724994B1 KR 100724994 B1 KR100724994 B1 KR 100724994B1 KR 1020050131094 A KR1020050131094 A KR 1020050131094A KR 20050131094 A KR20050131094 A KR 20050131094A KR 100724994 B1 KR100724994 B1 KR 100724994B1
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South Korea
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water
internal combustion
humidifying water
passage
combustion engine
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KR1020050131094A
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Korean (ko)
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박형근
갈상학
김진원
김기두
김병석
박종국
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현대중공업 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/025—Adding water
    • F02M25/028—Adding water into the charge intakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0493—Controlling the air charge temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
    • F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/032—Producing and adding steam
    • F02M25/035—Producing and adding steam into the charge intakes
    • 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

An apparatus for humidifying high efficiency supercharged air for an internal combustion engine is provided to maximize the evaporation effect of humidifying water by installing a packing layer expanding the gas liquid contact surface in an extension passage. An apparatus for humidifying high efficiency supercharged air for an internal combustion engine humidifies the supercharged air supplied to an expansion passage(3) and an extension passage(4) by a supercharger(2) by injecting the humidifying water to the expansion passage and the extension passage. An injection nozzle(9) injecting the humidifying water and steam is installed in the expansion pipe passage. A humidifying water injection nozzle jecting only humidifying water is installed in the extension passage. The expansion pipe passage and the extension pipe passage are installed along the exhaust pipe for discharging the exhaust gas.

Description

내연기관용 고효율 과급공기 가습 장치{Highly Efficient Charge Air Moisturizing Device for Internal Combustion Engine}Highly Efficient Charge Air Moisturizing Device for Internal Combustion Engine

도 1 은 본 발명에 따른 구성을 보인 예시도1 is an exemplary view showing a configuration according to the present invention

도 2 는 본 발명의 또다른 실시예를 보인 예시도Figure 2 is an exemplary view showing another embodiment of the present invention

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

(1) : 내연기관 (2) : 과급기(1): internal combustion engine (2): supercharger

(3) : 확관 유로 (4) : 연장 유로(3): expansion passage (4): extension passage

(5) : 제 1 미스트트랩(mist trap) (6) : 과급공기 냉각기(5): first mist trap (6): supercharged air cooler

(7) : 제 2 미스트트랩(mist trap) (8) : 배기 연도(7): second mist trap (8): exhaust flue

(9) : 이유체 분사노즐 (10) : 가습수 분사노즐(9): weaning jet nozzle (10): humidifying water jet nozzle

(11) : 패킹 층(packing layer) (12) : 제 1 배수구(11): packing layer (12): first drain

(13) : 제 2 배수구 (14) : 수조(13): 2nd drain port 14: water tank

(15) : 히터 (16) : 열교환기15: heater 16: heat exchanger

(17) : 가습수 펌프17: humidification water pump

(18) : 증기보일러 또는 증기유틸리티 (19,20,21) : 제어밸브(18): Steam boilers or steam utilities (19, 20, 21): Control valves

(22) : 제어기 (23) : 고온 냉각수 유로22: controller 23: high temperature coolant flow path

(24) : 저온 냉각수 유로 (25) : 노점계24: low temperature cooling water flow path 25: dew point meter

(26) : 온도계 (27) : 가습수 회수 유로26: thermometer 27: humidified water recovery flow path

(28) : 제 1 가습수 유로 (29) : 제 2 가습수 유로28: first humidification water flow path 29: second humidification water flow path

(30) : 제 3 가습수 유로 (31) : 제 4 가습수 유로30: third humidification water flow path 31: fourth humidification water flow path

(32) : 제 5 가습수 유로32: fifth humidifying water flow path

본 발명은 내연기관용 고효율 과급공기 가습 장치에 관한 것으로, 내연기관의 연소실로 유입되는 과급공기를 가습수와 증기로 가습하여 연소실 내에 공급함으로써 연소 최고 온도를 낮추어 질소산화물 발생량을 저감할 수 있는 내연기관용 고효율 과급공기 가습 장치에 관한 것이다The present invention relates to a high-efficiency supercharged air humidification device for an internal combustion engine. The internal combustion engine can reduce the amount of nitrogen oxide generated by lowering the maximum temperature of combustion by humidifying the boosted air flowing into the combustion chamber of the internal combustion engine with humidifying water and steam. High efficiency air humidification device

종래의 내연기관용 과급공기 가습 장치에서는 과급공기를 가습하기 위하여, 분사노즐을 이용하여 과급공기에 가습수만을 분사하였다. 그러나, 이러한 기술은 과급기에서 배출된 고온 고압의 과급공기와 고온의 가습수 열에너지만을 이용하기 때문에 분사된 가습수의 증발 효과가 낮은 문제점이 있었다. In the conventional turbocharged humidification device for an internal combustion engine, in order to humidify the turbocharged air, only humidifying water is injected into the turbocharged air using an injection nozzle. However, this technique has a problem in that the evaporation effect of the injected humidified water is low because only the high temperature and high pressure supercharged air discharged from the supercharger and the high temperature humidified water thermal energy are used.

또한, 가습수 액적의 증발 효과를 높이기 위해서는 많은 가습수의 공급이 필요하며, 가습수가 분사되고 증발되는 장치의 크기도 커질 수밖에 없다. 또한 내연기관 연소실에 과급공기가 유입되기 전 과급공기의 적절한 습도를 유지할 수 있도록 일정수준 이상의 과급 온도 유지를 위해서는 외부에서 추가적인 열에너지 공급 을 필요로 하는 등 여러 문제점이 있었다. In addition, in order to increase the evaporation effect of the humidified water droplets, it is necessary to supply a lot of humidified water, and the size of the device in which the humidified water is sprayed and evaporated is large. In addition, there were a number of problems, such as the need for additional heat energy from the outside to maintain the charging temperature above a certain level so that the proper humidity of the charging air can be maintained before the charging air enters the combustion chamber of the internal combustion engine.

본 발명은 상기와 같은 문제점을 해소하기 위한 것으로, 그 목적은 과급공기를 포화습도 상태 가까이 최대한 가습하면서, 최소한의 공간을 차지할 수 있는 내연기관용 고효율 과급공기 가습 장치를 제공하는 것이다. The present invention is to solve the above problems, an object of the present invention is to provide a high-efficiency boost air humidification device for an internal combustion engine that can occupy a minimum space while humidifying the charge air as close to the saturated humidity.

도 1 은 본 발명에 따른 구성을 보인 예시도를, 도 2 는 본 발명의 또다른 실시예를 보인 예시도를 도시한 것으로, 본 발명은 내연기관(1)의 과급기(2) 후단에 설치되는 과급공기 유로를 연장하여 내부 공간을 확장한 확관 유로(3) 및 연장 유로(4)에 가습수를 분사하여 과급기(2)에 의해 확관 및 연장 유로(3,4)로 공급되는 과급공기를 가습하는 내연기관용 과급공기 가습 장치에 있어서; 상기 확관 유로(3)에는 가습수와 증기를 동시에 분사하는 이유체 분사노즐(9)이 설치되고, 상기 연장 유로(4)에는 가습수만을 분사하는 가습수 분사노즐(10)이 설치되며, 상기 확관 유로(3) 및 연장 유로(4)는 배기가스를 배출하는 배기 연도(8)를 따라 설치되도록 되어 있다. 1 is an exemplary view showing a configuration according to the present invention, Figure 2 is an exemplary view showing another embodiment of the present invention, the present invention is installed in the rear end of the supercharger (2) of the internal combustion engine (1) Humidification air is supplied to the expansion and extension passages 3 and 4 by the supercharger 2 by injecting humidifying water into the expansion passage 3 and the extension passage 4 which extends the charge air passage to expand the internal space. In the supercharged air humidification device for an internal combustion engine; The expansion pipe 3 is provided with a wet body injection nozzle 9 for simultaneously injecting humidifying water and steam, and the humidifying water injection nozzle 10 for spraying only humidifying water is installed in the extension passage 4. The expansion channel 3 and the extension channel 4 are arranged along the exhaust flue 8 for discharging the exhaust gas.

즉, 본 발명은 과급기(2)에 의한 과급공기가 확관 유로(3)로 공급되고, 확관 유로(3)에 연장되어 분사된 가습수의 증발에 필요한 공간과 시간을 확보하기 위한 연장 유로(4)가 내연기관의 배가가스를 배출하는 배기 연도(8)를 따라 설치된다. That is, according to the present invention, the supercharged air by the supercharger 2 is supplied to the expansion channel 3, and the extension channel 4 for securing the space and time necessary for evaporation of the humidified water that is extended to the expansion channel 3 and injected. ) Is installed along the exhaust flue 8 which discharges the exhaust gas of the internal combustion engine.

상기 확관 유로(3)에는 히터(15), 열교환기(16) 및 가습수 펌프(17)에 의해 고온 고압으로 형성된 가습수를 증기보일러 또는 증기 유틸리티(18)에 의해 공급되는 증기와 혼합하여 분사하는 이유체 분사노즐(9)이 설치된다. 이때, 상기 증기보일러 또는 증기유틸리티(18)에서 이유체 분사노즐(9)로 증기를 공급하는 배관에는 제어밸브(21)가 설치되어 공급되는 증기의 양을 제어한다.The expansion pipe 3 is sprayed by mixing the humidified water formed at a high temperature and high pressure by the heater 15, the heat exchanger 16 and the humidification water pump 17 with the steam supplied by the steam boiler or the steam utility 18. A weaning body injection nozzle 9 is provided. At this time, the control valve 21 is installed in the pipe for supplying steam from the steam boiler or the steam utility 18 to the weaning body injection nozzle 9 to control the amount of steam supplied.

상기 연장 유로(4)에는 히터(15), 열교환기(16) 및 가습수 펌프(17)에 의해 고온 고압으로 형성된 가습수만을 분사하는 가습수 분사노즐(10)이 설치되고, 분사된 가습수와 과급공기의 기액 접촉 면적을 높여 가습수의 증발을 촉진하는 패킹 층(11)이 더 설치된다.The humidifying water injection nozzle 10 for spraying only the humidifying water formed at a high temperature and high pressure by the heater 15, the heat exchanger 16, and the humidifying water pump 17 is installed in the extension passage 4, and the sprayed humidifying water is installed. The packing layer 11 is further provided to increase the gas-liquid contact area of the supercharged air to promote evaporation of the humidified water.

또한, 상기 연장 유로(4)의 후단에는 증발되지 않은 가습수 액적을 포집하여 제거하는 제 1 미스트트랩(5)과, 고온 냉각수의 공급에 의한 열교환을 통해 과급공기의 온도를 조절하기 위한 과급공기 냉각기(6) 및, 가습수 액적이 엔진 연소실로 직접 유입되는 것을 방지하기 위한 제 2 미스트트랩(7)이 설치되어 있다. In addition, the first mist trap 5 for collecting and removing humidified water droplets that have not been evaporated in the rear end of the extension passage 4 and the charge air for controlling the temperature of the charge air through heat exchange by supply of high temperature cooling water. A cooler 6 and a second mist trap 7 for preventing the humidified water droplets from flowing directly into the engine combustion chamber are provided.

또한, 제 1 미스트트랩(5) 하부에 위치하도록 연장 유로(4)에는 제 1 배수구(12)가 형성되고, 제 2 미스트트랩(7) 하부에 위치하도록 연장 유로(4)에 제 2 배수구(13)가 각각 형성되어 있으며, 상기 제 1,2 배수구(12,13)는 수조(14)와 가습수 회수 유로(27)에 의해 각각 연결된다. In addition, a first drain hole 12 is formed in the extension flow passage 4 so as to be positioned below the first mist trap 5, and a second drain hole is formed in the extension flow passage 4 so as to be positioned below the second mist trap 7. 13 are respectively formed, and the first and second drains 12 and 13 are connected to each other by the water tank 14 and the humidifying water recovery passage 27.

또한, 상기 제 2 미스트트랩(7) 후단에 위치하도록 연장 유로(4)에는 노점계(25) 및 온도계(26)가 더 설치되어 있으며, 상기 노점계(25) 및 온도계(26)는 제어기(22)와 연결되어 실시간으로 측정되는 값이 제어기(22)로 입력된다.In addition, a dew point 25 and a thermometer 26 are further installed in the extension flow path 4 so as to be located at the rear end of the second mist trap 7, and the dew point 25 and the thermometer 26 are provided with a controller ( 22 and a value measured in real time is input to the controller 22.

상기 가습수는 히터(15), 열교환기(16) 및 가습수 펌프(17)에 의해 고온 고압으로 형성되고, 제 1,2,3 가습수 유로(28,29,30)를 통해 이유체 분사노즐(9) 및 가습수 분사노즐(10)로 공급된다. 즉, 상기 가습수는 수조(14)에 저장되고, 상기 수조에 설치된 히터(15)에 의해 수조 내 가습수가 예열된 후, 제 1 가습수 유로(28)를 통해 가습수 펌프(17)로 이송된다. The humidified water is formed at a high temperature and high pressure by the heater 15, the heat exchanger 16, and the humidified water pump 17, and the weaning body is injected through the first, second and third humidified water flow paths 28, 29, and 30. It is supplied to the nozzle 9 and the humidifying water injection nozzle 10. That is, the humidified water is stored in the water tank 14, and after the humidified water in the water tank is preheated by the heater 15 installed in the water tank, the humidified water is transferred to the humidified water pump 17 through the first humidified water flow path 28. do.

이때, 상기 제 1 가습수 유로(28)에는 열교환기(16)가 더 설치되고, 열교환기(16) 내로 고온 냉각수 유로(23)가 설치되어 있어, 히터(15)에 의해 예열된 가습수는 열교환기(16)를 경유하면서 고온으로 재가열된 후, 가습수 펌프(17)에 의해 고압으로 압축되어 가습수 분사노즐(10) 및 이유체 분사노즐(9)로 공급된다. At this time, a heat exchanger 16 is further installed in the first humidifying water flow path 28, and a high temperature cooling water flow path 23 is installed in the heat exchanger 16, so that the humidified water preheated by the heater 15 is provided. After reheating to a high temperature while passing through the heat exchanger 16, it is compressed to a high pressure by the humidifying water pump 17 and supplied to the humidifying water injection nozzle 10 and the weaning body injection nozzle 9.

또한, 상기 가습수 펌프(17)에 의해 압축된 고온 고압의 가습수는 제 2 가습수 유로(29)를 통해 이유체 분사노즐(9)로 공급되고, 상기 제 2 가습수 유로(29)에서 분관된 제 3 가습수 유로(30)를 통해 가습수 분사노즐(10)로 공급된다. In addition, the high temperature and high pressure humidified water compressed by the humidified water pump 17 is supplied to the weaning body injection nozzle 9 through the second humidified water flow path 29, and in the second humidified water flow path 29. It is supplied to the humidifying water injection nozzle 10 through the branched third humidifying water flow path 30.

또한, 상기 제 2,3 가습수 유로(29,30)는 제 1 가습수 유로(28)와 제 4,5 가습수 유로(31,32))에 의해 연결되어 있으며, 상기 제 4,5 가습수 유로(31,32)에는 가습수 분사노즐과 이유체 분사노즐의 분사압력을 조절할 수 있는 제어밸브(19,20)가 각각 설치되어 있다. In addition, the second and third humidifying water flow paths 29 and 30 are connected to each other by the first humidifying water flow path 28 and the fourth and fifth humidifying water flow paths 31 and 32. The water passages 31 and 32 are provided with control valves 19 and 20 for adjusting the spray pressure of the humidifying water spray nozzle and the wet-body spray nozzle, respectively.

이하 본 발명을 상세히 설명하면 다음과 같다. Hereinafter, the present invention will be described in detail.

내연기관(1) 과급기(2)의 후단에는 과급공기 확관 유로(3)와 분사된 가습수의 증발에 필요한 공간과 시간을 확보하기 위한 연장 유로(4)가 구성 설치되며, 이 때 연장 유로(4)의 형태는 배기가스를 배출하는 배기 연도(8)의 설치 방식에 따라 결정된다. 즉, 배기 연도(8)가 수직 상부로 향하여 설치되어 있으면 과급공기 연장 유로(4)도 수직으로 설치되고, 배기 연도(8)가 수평으로 향하도록 설치되면 연장 유로(4) 또한 수평으로 설치되며, 흔하지 않은 경우지만 배기 연도(8)가 경사를 이루며 설치되면 연장 유로(4)도 경사면을 따라 설치된다.At the rear end of the internal combustion engine (1) and the supercharger (2), an extension flow passage (4) for securing the space and time necessary for evaporation of the charged air expansion passage (3) and the injected humidified water is provided. The form of 4) is determined by the installation method of the exhaust flue 8 which discharges exhaust gas. That is, if the exhaust flue 8 is installed toward the vertical top, the supercharged air extension flow path 4 is also installed vertically. If the exhaust flue 8 is installed horizontally, the extension flow path 4 is also horizontally installed. If the exhaust flue 8 is installed at an inclined angle, the extension passage 4 is also installed along the inclined surface.

또한, 상기 확관 유로(3)에는 가습수와 증기를 동시에 분사하기 위한 이유체 분사노즐(9)이 설치되고, 연장 유로(4)에는 가습수만을 분사하기 위한 가습수 분사노즐(10) 및, 분사된 가습수와 과급공기의 기액 접촉 면적을 높여 가습수의 증발을 촉진하기 위한 패킹 층(11)이 설치된다. 이때, 상기 이유체 분사노즐(9)의 분사에 필요한 압력보다 가습수 분사노즐(10)에서 필요한 압력이 더 높기 때문에, 이유체 분사노즐(9)과 가습수 분사노즐(10)에서 분사되는 가습수의 압력을 조절하기 위한 제어밸브(19,20)가 각각 별도로 설치되어 있다. In addition, the expansion pipe (3) is provided with a weaning body injection nozzle (9) for simultaneously injecting humidifying water and steam, the humidifying water injection nozzle (10) for injecting only humidifying water in the extension passage (4), A packing layer 11 is provided to increase the gas-liquid contact area between the injected humidifying water and the charge air to promote evaporation of the humidifying water. At this time, since the pressure required by the humidification water injection nozzle 10 is higher than the pressure required for the injection of the weaning body injection nozzle 9, the humidification injected by the weaning body injection nozzle 9 and the humidifying water injection nozzle 10. Control valves 19 and 20 for regulating water pressure are separately provided.

또한, 상기 연장 유로(4) 후단에는 증발되지 않은 가습수 액적을 걸러내는 제 1 미스트트랩(5)과 과급공기의 온도를 조절하기 하기 위한 과급공기 냉각기(6) 및 가습수 액적이 엔진 연소실로 직접 유입되는 것을 방지하기 위한 제 2 미스트트랩 (7)이 설치되어 있다. In addition, the rear end of the extension passage 4, the first mist trap (5) for filtering the humidified water droplets that have not evaporated, and the charge air cooler (6) and the humidified water droplets for controlling the temperature of the charge air to the engine combustion chamber. A second mist trap 7 is provided for preventing direct flow.

또한, 수조(14)에서 전기 또는 기타 열원으로 작동되는 히터(15)에 의해 미리 예열된 가습수는 고온 냉각수(23)가 공급되는 열교환기(16)를 지나면서 고온으로 가열된 후 가습수 펌프(17)에 의해 고압으로 압축되어 고온 고압의 상태로 이유체 분사노즐(9) 및 가습수 분사노즐(10)에 공급된다. In addition, the humidified water preheated by the heater 15 operated by electricity or other heat source in the water tank 14 is heated to a high temperature by passing through the heat exchanger 16 to which the high temperature cooling water 23 is supplied, and then a humidified water pump. (17) is compressed to high pressure and supplied to the weaning body injection nozzle 9 and the humidified water injection nozzle 10 in a state of high temperature and high pressure.

한편 이유체 분사노즐(9)로 공급된 가습수는 증기보일러 또는 증기유틸리티(18)로부터 이유체 분사노즐(9)로 공급된 증기에 의해 미세한 액적 상태로 되면서 과급공기 중으로 분사된다.On the other hand, the humidified water supplied to the weaning body injection nozzle 9 is injected into the charge air while being in the form of fine droplets by the steam supplied from the steam boiler or the steam utility 18 to the weaning body injection nozzle 9.

이와 같이 분사노즐(9,10)을 통하여 분사되는 가습수와 증기의 공급량은 제어기(22)에 의해 조절되는데, 제어에 필요한 과급공기의 포화도 및 온도는 제 2 미스트트랩(7) 후단에 설치되어 있는 노점계(25) 및 온도계(26)에 의해 실시간으로 측정되어 제어기(22)에 입력되고, 제어기(22)는 필요한 가습수와 증기의 양을 제어밸브(19,20,21)의 개폐량에 따라 조절한다.In this way, the supply amount of humidifying water and steam injected through the injection nozzles 9 and 10 is controlled by the controller 22, and the saturation and temperature of the charge air necessary for the control are installed at the rear end of the second mist trap 7. Measured in real time by a dew point meter 25 and a thermometer 26, which is input to the controller 22, and the controller 22 controls the amount of humidification water and steam required to open and close the control valves 19, 20, 21. Adjust according to

또한, 상기 분사노즐(9,10)을 통해 분사된 가습수 중 증발되지 않은 다소 큰 액적은 제 1 미스트트랩(5) 하단에 설치된 제 1 배수구(12)로 흘러 들어가고, 다소 작은 액적 또는 미스트는 제 1 미스트트랩(5)에 걸러져 제 1 배수구(12)로 흘러내리게 되며, 제 1 배수구(12)에 고인 물은 가습수 회수 유로(27)를 따라 수조(14)로 회수된 후 재사용 된다. 또한, 제 1 미스트트랩(5)을 통과한 과급공기 중의 미세한 액적은 고온 냉각수(23)에 의해 가열된 과급공기 냉각기(6)에서 열에너지를 공급받아 수증기로 증발하게 되며, 과급공기 냉각기(6)를 지난 후에도 증발하지 않은 미스트는 제 2 미스트트랩(7)에 포집되어 제 2 배수구(13)에 집수된 후 가습수 회수 유로(27)를 통하여 수조로 되돌아가게 된다.In addition, rather large droplets which are not evaporated in the humidifying water sprayed through the injection nozzles 9 and 10 flow into the first drain 12 installed at the bottom of the first mist trap 5, and rather small droplets or mist The first mist trap (5) is filtered to flow down to the first drain port 12, the water accumulated in the first drain port 12 is recovered to the water tank 14 along the humidifying water recovery passage 27 is reused. In addition, the fine droplets in the boost air passing through the first mist trap 5 is supplied with thermal energy from the boost air cooler 6 heated by the high temperature cooling water 23 to evaporate into water vapor, and the boost air cooler 6. The mist which has not evaporated even after passing through is collected in the second mist trap 7 and collected in the second drain 13, and then returned to the water tank through the humidifying water recovery passage 27.

또한, 상기 과급공기 냉각기(6)는 과급공기를 가습하지 않는 통상의 엔진 운전에서는 저온 냉각수 유로(24)와 연결되어 과급공기를 냉각하는 역할을 하게 된다.In addition, the booster air cooler 6 is connected to the low temperature cooling water flow passage 24 in a normal engine operation in which the booster air is not humidified to serve to cool the charge air.

본 발명은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

이와 같이 본 발명은 가습수와 증기를 혼합하여 분사하고, 연장 유로 내에 기액 접촉 면적을 확대할 수 있는 패킹 층을 더 설치하도록 되어 있어, 가습수의 증발 효과를 극대화시킬 수 있다. In this way, the present invention is to mix and spray the humidifying water and steam, and to further install a packing layer that can expand the gas-liquid contact area in the extension passage, it is possible to maximize the evaporation effect of the humidifying water.

또한, 내연기관의 배기가스를 외부로 배출하는 배기 연도는 설치 여건 및 규정에 따라 수직, 수평, 경사 또는 복합 형태로 설치되는데, 배기 연도가 고온이기 때문에 순수하게 배기 연도가 지나가는 경로 외에 일정한 공간을 더 할애하게 되므로, 본 발명은 이러한 배기 연도 주위 일정 공간에 과급공기가 지나가도록 확장 유로 및 연장 유로를 연장하도록 되어 있어, 과급공기의 가습을 위한 별도의 공간을 크게 필요로 하지 않는 작은 크기의 가습 장치를 구성할 수 있다.In addition, the exhaust flue exhausting the exhaust gas of the internal combustion engine to the outside is installed in a vertical, horizontal, inclined or complex form according to the installation conditions and regulations. As a result, the present invention is designed to extend the expansion passage and the extension passage so that the charge air passes through a predetermined space around the exhaust flue, so that the humidification of a small size does not require a large space for humidification of the charge air. You can configure the device.

또한, 배기 연도를 따라 설치되는 확관 유로 및 연장 유로에서 가습수 및 스팀 분사에 의한 1차 가습, 가습수 분사에 의한 2차 가습, 패킹 층에서의 3차 가습 및 과급공기 냉각기에서의 최종 가습 등의 과정을 통하여 가습 장치의 소형화 및 고효율 가습 성능 효과를 구비하게 된다. In addition, primary humidification by humidifying water and steam injection, secondary humidification by humidifying water injection, tertiary humidification by packing layer, and final humidification by a supercharged air cooler in the expansion and extension passages installed along the exhaust flue. Through the process of miniaturization and high efficiency humidification performance of the humidification device is provided.

또한, 상기와 같은 가습 과정을 거친 과급공기는 열용량이 증가된 상태로 내 연기관의 연소실로 유입되어, 연료의 연소 중에 발생되는 열로 인한 온도 상승을 억제하여 연소 최고온도를 낮춤으로써 연소 중에 생성되는 질소산화물의 발생량을 대폭 저감할 수 있는 효과를 나타내게 된다. In addition, the supercharged air after the humidification process is introduced into the combustion chamber of the inner smoke pipe with the heat capacity increased, thereby suppressing the temperature rise due to the heat generated during the combustion of the fuel and lowering the maximum temperature of combustion, which is generated during combustion. It is possible to significantly reduce the amount of nitrogen oxides generated.

Claims (6)

내연기관의 과급기 후단에 설치되는 과급공기 유로를 연장하여 내부 공간을 확장한 확관 유로와 연장 유로에 가습수를 분사하여 과급기에 의해 확관 및 연장 유로로 공급되는 과급공기를 가습하는 내연기관용 과급공기 가습 장치에 있어서;Supercharged air humidifier for internal combustion engines that extends the supercharged air flow path installed at the rear end of the internal combustion engine to expand the internal space and sprays humidifying water to the extended flow path to humidify the supercharged air supplied by the supercharger. In an apparatus; 상기 확관 유로에는 가습수와 증기를 동시에 분사하는 이유체 분사노즐이 설치되고,The expansion pipe flow passage is provided with a weaning body injection nozzle for simultaneously injecting humidifying water and steam, 상기 연장 유로에는 가습수만을 분사하는 가습수 분사노즐이 설치되며,The humidifying water injection nozzle for spraying only humidifying water is installed in the extension passage, 상기 확관 유로 및 연장 유로는 배기가스를 배출하는 배기 연도를 따라 설치되되,The expansion passage and the extension passage is installed along the exhaust flue exhaust gas, 상기 가습수는 히터에 의해 수조 내에서 예열되고, 과급공기 냉각기를 경유한 고온 냉각수 유로가 연결된 열교환기를 경유하면서 고온으로 재가열된 후, 가습수 펌프에 의해 고압으로 압축되어 가습수 분사노즐 및 이유체 분사노즐로 공급되는 것을 특징으로 하는 내연기관용 고효율 과급공기 가습 장치.The humidifying water is preheated in the water tank by the heater, and reheated to a high temperature via a heat exchanger connected to a high temperature cooling water flow passage through a supercharged air cooler, and then compressed to a high pressure by a humidifying water pump to supply a humidifying water spray nozzle and a weaning body. A high efficiency supercharged air humidifier for an internal combustion engine, characterized in that it is supplied to an injection nozzle. 제 1 항에 있어서;The method of claim 1; 상기 연장 유로 내에는 분사된 가습수와 과급공기의 기액 접촉 면적을 높여 가습수의 증발을 촉진하는 패킹 층이 더 설치되는 것을 특징으로 하는 내연기관용 고효율 과급공기 가습 장치.The high efficiency boosting air humidification device for an internal combustion engine, characterized in that the packing layer for further promoting the evaporation of the humidifying water by increasing the gas-liquid contact area between the sprayed humidification water and the charge air. 제 1 항에 있어서;The method of claim 1; 상기 연장 유로의 후단에는 증발되지 않은 가습수 액적을 포집하여 제거하는 제 1 미스트트랩과, 고온 냉각수의 공급에 의한 열교환을 통해 과급공기의 온도를 조절하기 위한 과급공기 냉각기 및, 가습수 액적이 엔진 연소실로 직접 유입되는 것을 방지하기 위한 제 2 미스트트랩이 설치된 것을 특징으로 하는 내연기관용 고효율 과급공기 가습 장치.The first mist trap for collecting and removing humidified water droplets that have not evaporated in the rear end of the extension passage, a supercharged air cooler for controlling the temperature of the charged air through heat exchange by supply of high temperature cooling water, and humidified water droplets are engines. A high efficiency supercharged air humidifier for an internal combustion engine, characterized in that a second mist trap is installed to prevent direct entry into the combustion chamber. 삭제delete 제 1 항에 있어서;The method of claim 1; 상기 증기보일러 또는 증기 유틸리티에서 이유체 분사노즐로 증기를 공급하는 배관에는 제어밸브가 설치되고, A control valve is installed in the pipe for supplying steam to the weaning body injection nozzle from the steam boiler or steam utility. 상기 가습수 분사노즐 및 이유체 분사노즐과 연결된 가습수 공급 배관에는 제어밸브가 더 설치된 것을 특징으로 하는 내연기관용 고효율 과급공기 가습 장치.High efficiency supercharged air humidifier for an internal combustion engine, characterized in that the control valve is further installed in the humidifying water supply pipe connected to the humidifying water injection nozzle and the weaning body injection nozzle. 제 1 항 내지 제 3 항 중 어느 한 항에 있어서;The method of any one of claims 1 to 3; 상기 연장 유로 후단에는 노점계 및 온도계가 더 설치된 것을 특징으로 하는 내연기관용 고효율 과급공기 가습 장치.High efficiency supercharged air humidifier for an internal combustion engine, characterized in that a dew point meter and a thermometer are further installed at the rear end of the extension passage.
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KR100982225B1 (en) 2007-07-02 2010-09-14 맨 디젤 필리얼 아프 맨 디젤 에스이, 티스크랜드 Humid air diesel engine
KR101178691B1 (en) 2010-05-24 2012-08-30 현대중공업 주식회사 Charge Air Moisturizing Device for Internal Combustion Engine

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