KR100422472B1 - Directly heating paint booth, saved energy - Google Patents
Directly heating paint booth, saved energy Download PDFInfo
- Publication number
- KR100422472B1 KR100422472B1 KR10-2002-0087628A KR20020087628A KR100422472B1 KR 100422472 B1 KR100422472 B1 KR 100422472B1 KR 20020087628 A KR20020087628 A KR 20020087628A KR 100422472 B1 KR100422472 B1 KR 100422472B1
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- air
- fuel
- blower
- booth
- heat exchanger
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
Abstract
본발명은 도장부스의 에너지 절약방법으로 직접가열식에 관한 것으로서, 기존의 간접가열식에 비해 에너지효율이 매우 높다. 직접가열식은 연소후 배출되는 연소공기를 외부로 배출하지 않고 도장실 내부로 유입되는 것을 그 특징으로 한다. 직접가열식으로 촉매연소방법에 관한 것이다.The present invention relates to a direct heating type as an energy saving method of the coating booth, and has a much higher energy efficiency than the conventional indirect heating type. The direct heating type is characterized in that it is introduced into the painting chamber without discharging the combustion air discharged after the combustion to the outside. It relates to a catalytic combustion method by direct heating.
Description
본 발명은 도장 부스의 도장실에 가열하는 방법에 관한 것이다.The present invention relates to a method of heating in a painting chamber of a painting booth.
도1은 일반적인 도장부스를 나타낸 구성도이다. 도 1에 도시된 바와 같이 일반적인 도장부스는 크게 천정덕트(112) 및 바닥덕트(114)를 구비하고 도장작업을 하는 도장실(110), 외부공기를 가열하여 천정덕트(112)를 통해 상기 도장실(110) 내부로 공급하는 송풍기(120) 및 상기 도장실(110)에서 발생한 페인트와 휘발성 유기화합물을 다단계 필터(132)를 통해 흡착하고 정화된 공기를 외부로 배출하는 배풍기(130)로 이루어진다.1 is a block diagram showing a general coating booth. As shown in FIG. 1, a general coating booth includes a ceiling duct 112 and a floor duct 114, and includes a painting chamber 110 for painting and heating external air to paint the ceiling through the ceiling duct 112. A blower 120 for supplying the interior of the chamber 110 and a blower 130 for adsorbing the paint and the volatile organic compounds generated in the painting chamber 110 through the multi-stage filter 132 and discharging the purified air to the outside. .
특히, 상기 송풍기(120)는 외부 공기를 흡입할 때 먼지를 제거하기 위한 필터와(121), 상기 필터를 통과한 공기를 송풍하기 위한 불로어(122)와, 송풍되는 공기를 가열하는 열교환장치(124)로 구성된다.In particular, the blower 120 includes a filter 121 for removing dust when inhaling outside air, a blower 122 for blowing air passing through the filter, and a heat exchanger for heating the blown air. 124.
도 2는 상기 열교환장치(124)를 보다 상세히 설명한 것으로서, 점화 버너(202), 연료 주입구(203), 점화 버너에 의해 주입된 연료를 연소시키는 연소로(201), 연소된 뜨거운 공기의 열을 전달하는 열교환기(204)와 열을 전달한 연소공기를 배출하는 배출구(205)로 상기 열교환장치(124)가 구성되며, 배출구(205)가 외부로 배출되도록 구성되어 있다. 상기 송풍기(120)의 블로어(122)로부터 유입되는 공기는 상기 열교환기(204)를 통해 간접가열식으로 열을 전달 받아 도장실(110) 내부로 유입된다.2 illustrates the heat exchanger 124 in more detail, and includes an ignition burner 202, a fuel injection port 203, a combustion furnace 201 for burning fuel injected by the ignition burner, and heat of the burned hot air. The heat exchanger 124 is configured as a heat exchanger 204 to transfer and a discharge port 205 for discharging combustion air that transfers heat, and the discharge port 205 is configured to be discharged to the outside. The air flowing from the blower 122 of the blower 120 receives heat indirectly through the heat exchanger 204 and flows into the painting chamber 110.
그러나 간접가열식은 열교환 효율이 40∼50% 불과해 연료의 소모가 많아 일년 연료비가 도장부스당 약 일천오백만원이 든다. 열교환 효율을 높이기 위해서는 열교환기(204)의 표면적과 부피가 증가하여야 하나, 열교환기의 표면적과 부피의 증가는 열교환기(204)의 제작비가 높아져 가격 경쟁력을 잃고, 또한 도장부스는 건축물 내에 위치하여야 하므로 도장부스의 건축비용과 토지비용의 증가를 초래한다.However, the indirect heating type consumes about 40-50% of heat exchange efficiency, so the fuel cost is about 15 million won per painting booth. In order to increase the heat exchange efficiency, the surface area and the volume of the heat exchanger 204 should be increased, but the increase in the surface area and the volume of the heat exchanger loses the price competitiveness due to the high manufacturing cost of the heat exchanger 204, and the paint booth must be located in the building. As a result, the construction cost and land cost of the painting booth are increased.
본 발명은 상기 종래기술이 안고있는 에너지효율이 낮은 문제점을 해결하기 위하여 안출된 것으로서, 에너지효율의 극대화뿐만 아니라 이로 인한 화재위험이 없어 보다 안전하며, 그 구조가 간단하여 매우 실용적이면서도 유용한 도장부스용 열공급방법을 제공하는 것을 그 목적으로 하는 것이다.The present invention has been made to solve the problem of low energy efficiency of the prior art, as well as maximizing energy efficiency, there is no risk of fire caused by this more safe, simple structure and very practical and useful for the paint booth It is an object of the present invention to provide a heat supply method.
도1은 기존의 도장부스1 is a conventional painting booth
도2는 기존 도장부스의 열교환장치2 is a heat exchanger of the existing paint booth
도3은 직접가열식 열연소장치3 is a direct heating type thermal combustion apparatus
도4는 직접가열식 촉매연소장치4 is a direct heating catalytic combustion device
110: 도장실 112: 천정덕트110: coating room 112: ceiling duct
114: 바닥덕트 120: 송풍기114: floor duct 120: blower
121: 필터 122: 송풍블로어121: filter 122: blowing blower
124: 열교환장치 130: 배풍기124: heat exchanger 130: blower
132: 다단계필터 201,304: 연소로132: multi-stage filter 201,304: combustion furnace
202,303: 버너 203,301: 열교환장치202,303: burner 203,301: heat exchanger
204,302: 열교환기 205,305: 연소배출구204,302: heat exchanger 205,305: combustion outlet
401 : 블로어 402: 예열기401 blower 402: preheater
403: 연료펌프 404: 연료예열기403: fuel pump 404: fuel preheater
405: 연료분사구 406: 라인믹서405: fuel injection port 406: line mixer
407: 촉매 408: 배플407 catalyst 408 baffle
상기와 같은 목적을 달성하기 위하여 본 발명은 도장실 내에 열 공급방법이 직접가열식인 것을 그 특징으로 한다. 기존의 간접가열식은 연소된 뜨거운 공기가 연소 후 배출구를 통해 외부로 배출되는데 비해, 본 발명의 직접 가열식은 연소된 뜨거운 공기가 배출구에서 배출된 후 도장실로 유입되는 공기와 섞여 도장실로 유입되는 것으로서, 도장실로 유입되는 공기를 이차적으로 덥혀 열에너지를 배출시키지 않고 모두 사용하는 열공급방법이다.In order to achieve the above object, the present invention is characterized in that the heat supply method in the coating chamber is a direct heating type. Conventional indirect heating type is the hot air is combusted is discharged to the outside through the exhaust after the combustion, the direct heating type of the present invention is that the hot air is combusted with the air flowing into the paint chamber after being discharged from the outlet, and enters the paint chamber, It is a heat supply method that uses both the air flowing into the painting room and secondary heat without releasing heat energy.
상기의 직접가열식은 직접가열식 열연소방법과 직접가열식 촉매연소방법이 있다.The direct heating type includes a direct heating hot combustion method and a direct heating catalytic combustion method.
상기의 직접가열식 열연소방법은 배출구, 연소로, 열교환기, 블로어와 버너로 구성되어지며 열교환기의 배출구에서 배출되는 연소된 공기가 상기 도장 부스의 송풍기에서 유입되는 공기와 혼합되어 도장실로 유입되는 것을 그 특징으로 한다. 상기 연소로와 열교환기는 일체형으로 제작될 수 있으며, 블로어와 버너도 블로어와 버너가 일체형인 것을 사용할 수 있다.The direct heating method of the thermal combustion is composed of an outlet, a combustion furnace, a heat exchanger, a blower and a burner, and the combusted air discharged from the outlet of the heat exchanger is mixed with the air introduced from the blower of the painting booth and introduced into the painting chamber. It is characterized by. The combustion furnace and the heat exchanger may be manufactured in one piece, and the blower and the burner may also be used in which the blower and the burner are integral.
상기의 직가열식 열연소방법을 보다 자세히 설명하면, 버너에서 점화된 연료와 블로어에서 유입된 공기가 연소로에서 500∼1200℃에서 0.2∼3초간 연소가 가능하나, 효율적인면과 경제적인 면에서 800∼1000℃에서 0.5∼2초간 연소하는 것이 좋다. 연소된 공기는 열교환기를 통과하면서 송풍기에서 도장실로 유입되는 공기에 의해 200∼600℃로 냉각되고 열교환기에 달린 배출구를 통해 배출된 후, 열교환기에서 1차로 가열된 도장실로 유입되는 공기와 혼합되어 도장실 내부로 송풍되는 방법이다. 상기의 열연소방법은 도장실 유입공기가 열교환기에서 1차로 가열되고 연소공기와 혼합되면서 2차로 가열되어 도장실로 유입되는 것이 그 특징이고, 열교환기에서 열교환효율이 낮아도 에너지 소모가 없슴으로 열교환기가 작아도 되므로 제작적인 면에서도 경제적이다.In more detail, the above-described direct heating thermal combustion method is described. In the burner, the fuel ignited in the burner and the air introduced from the blower can be burned for 0.2 to 3 seconds at 500 to 1200 ° C in the combustion furnace, but from 800 to 800 in terms of efficiency and economy. It is good to burn at 1000 degreeC for 0.5 to 2 second. The combusted air is cooled to 200 ~ 600 ℃ by the air flowing from the blower into the paint chamber while passing through the heat exchanger and discharged through the outlet connected to the heat exchanger, and then mixed with the air flowing into the paint chamber first heated in the heat exchanger to paint It is a method of blowing into the room. The heat combustion method is characterized in that the inlet air of the paint chamber is heated first in the heat exchanger and mixed with the combustion air to be heated secondly and flows into the paint chamber, and even though the heat exchanger is small because the heat exchange efficiency is low in the heat exchanger, there is no energy consumption. It is economical in terms of production.
상기의 직접가열식 촉매연소방법은 공기를 유입하는 불로어, 유입된 공기를 데우는 예열기, 연료를 공급하는 연료 펌프, 연료를 덥히는 연료예열기, 연료분사기, 분사된 연료와 공기를 섞어 주는 라인 믹서, 연료를 연소하는 산화촉매와 연소된 공기와 도장실로 유입되는 공기를 혼합하여 주는 배플로 구성되어지며, 산화촉매에서 연소된 뜨거운 공기가 도장 부스의 송풍기에서 유입된 공기와 혼합되어 도장실 내부로 유입되는 것을 그 특징으로 한다.The direct heating method of the catalytic combustion method includes a furnace for introducing air, a preheater for warming the introduced air, a fuel pump for supplying fuel, a fuel preheater for heating the fuel, a fuel injector, a line mixer for mixing the injected fuel and air, It consists of a baffle that mixes the oxidizing catalyst burning fuel and the air flowing into the painting chamber.The hot air burned in the oxidation catalyst is mixed with the air flowing from the blower of the painting booth and flows into the painting chamber. It is characterized by that.
상기의 촉매연소방법을 보다 자세히 설명하면 블로어를 통해 촉매연소장치로 공기가 유입되고 유입된 공기는 예열기를 통해 예열되는데, 이때 예열 온도는 100∼500℃가 바람직 하나 더욱 좋기로는 180∼350℃가 바람직하다. 연료 펌프에서 공급된 연료는 연료 예열기를 통해 예열된 후 연료 분사기를 통해 분사된다. 예열된 공기와 분사된 연료가 합쳐져 라인 믹서에서 골고루 혼합되어진 후 산화촉매에서 연소된다. 이때 산화촉매로 사용되는 금속은 Pt, Pd, Ru, Mn, W 등이며 이들을 혼합하여 사용할 수 있으며, 공간속도는 5000∼80000hr-1이 가능하나 효율적인 면과 경제적인 면에서 20000∼60000hr-1이 더욱 좋다. 산화촉매에서 연소된 공기는 도장 부스의 송풍기에서 유입된 공기와 합쳐져 유입된 공기를 가열한 후 도장실 내부로 방법이다.When describing the catalytic combustion method in more detail, the air is introduced into the catalytic combustion device through the blower and the introduced air is preheated through the preheater, wherein the preheating temperature is preferably 100 to 500 ° C., but more preferably 180 to 350 ° C. Is preferred. The fuel supplied from the fuel pump is preheated through the fuel preheater and then injected through the fuel injector. The preheated air and the injected fuel are combined and mixed evenly in the line mixer and then burned in the oxidation catalyst. The metal that is used as the oxidation catalyst can be used as a mixture thereof and the like Pt, Pd, Ru, Mn, W, the space velocity is 5000~80000hr -1 is possible if one efficient and economic aspects in 20000~60000hr -1 Even better. The air burned by the oxidation catalyst is combined with the air introduced from the blower of the painting booth to heat the introduced air and then into the coating chamber.
상기의 직접가열식 열연소방법과 촉매연소방법의 연료는 경유, 등유, LPG, LNG등을 연료로 사용할 수 있으나 좋기로는 청정연료인 LPG와 LNG가 좋다.As the fuel of the direct heating method and the catalytic combustion method, diesel, kerosene, LPG, LNG and the like may be used as fuels, but LPG and LNG, which are clean fuels, are preferable.
상기의 직접가열식 열연소방법과 촉매연소방법을 이하 첨부도면을 통해 본 발명의 실시예를 들어 더욱 상세히 설명하기로 하되, 본 발명은 하기되는 실시예에 한정되는 것은 아니다.The direct heating method and the catalytic combustion method described above will be described in more detail with reference to the embodiments of the present invention through the accompanying drawings, the present invention is not limited to the following examples.
도 3은 상기의 직접가열식 열연소방법을 설명하기 위한 개략적인 시스템 개요도로서, 송풍, 연료주입과 점화가 가능한 버너(303)에서 점화된 연료는 연소로(304)에서 완전 연소된 후 열교환기(302)를 통해 도장 부스의 송풍기로부터 유입된 공기(306)에 열을 공급하며 일차로 온도가 내려간 후 열교환기의 연소배출구(305)를 통해 배출된다. 도장 부스의 송풍기로부터 유입된 공기(306)는 열교환기(302)를 통해 일차로 가열된 후 연소배출구(305)에서 배출된 뜨거운 공기와 혼합되며 이차로 가열된다. 이때 연소로(304)는 두 공기가 충분히 혼합할 수 있도록 배플 역할을 한다. 연소로(304) 외부에서, 연소로에서 배출된 공기와 송풍기로부터 유입된 공기(306)가 충분히 혼합된 공기(308)는 도장실 내부로 유입된다.FIG. 3 is a schematic system schematic diagram for explaining the above-described direct heating method, wherein the fuel ignited in the burner 303 capable of blowing, fuel injection and ignition is completely burned in the combustion furnace 304 and then the heat exchanger 302. Heat is supplied to the air 306 introduced from the blower of the painting booth through the), and the temperature is first lowered and then discharged through the combustion outlet 305 of the heat exchanger. The air 306 introduced from the blower of the painting booth is first heated through the heat exchanger 302, mixed with the hot air discharged from the combustion outlet 305, and secondly heated. At this time, the combustion furnace 304 serves as a baffle so that the two air can be sufficiently mixed. Outside the combustion furnace 304, the air 308 in which the air discharged from the combustion furnace and the air 306 introduced from the blower are sufficiently mixed is introduced into the painting chamber.
도 4는 직접가열식 촉매연소방법을 설명하기 위한 개략적인 시스템 개요도로서, 블로어(401)를 통해 공기를 유입한 후 예열기(402)에서 예열된다. 연료는 연료 펌프(403)에서 공급되고 연료 예열기(404)에서 예열된 후 연료 분사구(405)로 분사된다. 예열된 공기와 분사된 연료가 라인 믹서(406)에서 충분히 골고루 혼합된 후 산화촉매(407)에서 연소된 후 배출되는 공기(409)는 도장 부스의 송풍기에서 유입된 공기(410)와 합께 배플(408)에서 혼합된다. 이때 송풍기에서 유입된 공기(410)는 가열되며 가열된 공기(411)는 도장실로 유입되어 도장이 건조된다.4 is a schematic system schematic diagram illustrating a direct heating catalytic combustion method, which is preheated in the preheater 402 after introducing air through the blower 401. Fuel is supplied from the fuel pump 403 and preheated in the fuel preheater 404 and then injected into the fuel inlet 405. The preheated air and the injected fuel are sufficiently evenly mixed in the line mixer 406 and then burned in the oxidation catalyst 407 and then discharged from the air 409 together with the air 410 introduced from the blower of the painting booth. At 408. At this time, the air 410 introduced from the blower is heated, and the heated air 411 is introduced into the painting chamber to dry the coating.
연소열을 열교환기를 통해 열을 흡수하는 방식인 기존의 간접 열교환 방식은 40∼50% 정도로 열효율이 낮아 연료 소모가 높으나 본 발명에서 개발한 직접가열식 연소방법은 연소열 모두를 사용함으로써 열효율을 100% 로 높여 연료 소모를 최대한 낮추었다. 또한 열교환기가 작고 연소배기덕트가 없어져 구조가 간단하여 설비비가 절감되며 매우 실용적이다.The conventional indirect heat exchange method, which absorbs heat through the heat exchanger, has low thermal efficiency of 40-50%, resulting in high fuel consumption. However, the direct heating combustion method developed in the present invention increases the thermal efficiency to 100% by using both combustion heat. The fuel consumption has been kept as low as possible. In addition, since the heat exchanger is small and there is no combustion exhaust duct, the structure is simple and the equipment cost is reduced and is very practical.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2002-0087628A KR100422472B1 (en) | 2002-12-30 | 2002-12-30 | Directly heating paint booth, saved energy |
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| KR10-2001-0055230A Division KR100441903B1 (en) | 2001-09-07 | 2001-09-07 | Directly heating paint booth, saved energy |
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| KR100422472B1 true KR100422472B1 (en) | 2004-03-11 |
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