KR102459052B1 - Heat exchanger for air conditioner having volatile organic compounds removal function and manufacturing method thereof - Google Patents

Heat exchanger for air conditioner having volatile organic compounds removal function and manufacturing method thereof Download PDF

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KR102459052B1
KR102459052B1 KR1020210146178A KR20210146178A KR102459052B1 KR 102459052 B1 KR102459052 B1 KR 102459052B1 KR 1020210146178 A KR1020210146178 A KR 1020210146178A KR 20210146178 A KR20210146178 A KR 20210146178A KR 102459052 B1 KR102459052 B1 KR 102459052B1
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heat exchange
photocatalyst
exchange fin
tungsten oxide
manufacturing
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KR1020210146178A
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Korean (ko)
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이용범
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주식회사 다람이엔지
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/10Noble metals or compounds thereof
    • B01D2255/102Platinum group metals
    • B01D2255/1021Platinum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20707Titanium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20761Copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20776Tungsten
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/80Type of catalytic reaction
    • B01D2255/802Photocatalytic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/18Safety or protection arrangements; Arrangements for preventing malfunction for removing contaminants, e.g. for degassing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Catalysts (AREA)

Abstract

The present invention relates to a heat exchanger for an air conditioner, including a plurality of heat exchange fins arranged spaced apart from each other, and a heat exchange tube installed to pass through the heat exchange fins. By coating the heat exchange fin with a visible light responsive photocatalyst, the heat exchanger for an air conditioner has the volatile organic compound removal function.

Description

휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기 및 그 제조방법{Heat exchanger for air conditioner having volatile organic compounds removal function and manufacturing method thereof}Heat exchanger for air conditioner having volatile organic compounds removal function and manufacturing method thereof

본 발명은 공기조화장치용 열교환기에 관한 것으로서, 더욱 상세하게는 공기조화장치용 열교환기에 가시광 응답성 광촉매를 코팅함으로써 공기 중에 포함된 휘발성유기화합물을 제거할 수 있게 한 공기조화장치용 열교환기 및 그 제조방법에 관한 것이다.The present invention relates to a heat exchanger for an air conditioner, and more particularly, a heat exchanger for an air conditioner in which volatile organic compounds contained in the air can be removed by coating a photocatalyst responsive to visible light on the heat exchanger for an air conditioner and the same It relates to a manufacturing method.

일반적으로 반도체 생산공정이나 제조 산업군에서 불가피하게 화학약품을 사용하는 경우가 많다.In general, there are many cases where chemicals are inevitably used in semiconductor production processes or manufacturing industries.

산업시설의 경우 제품의 품질이나 생산량 때문에 일반건축물에 적용되는 실내질공기법에 의한 환기가 적용되지 않고 있다. 대부분 배기장치를 통하여 환경설비를 이용해 정화해서 배출하고 있으나, 휘발성이 강한 약품의 경우 대기중에 확산하여 근로자의 작업환경에 노출이 되고 있다.In the case of industrial facilities, ventilation by the Indoor Air Quality Act applied to general buildings is not applied due to the quality or production of products. Most of them are purified and discharged using environmental facilities through exhaust systems, but highly volatile chemicals are diffused into the atmosphere and exposed to the working environment of workers.

이에, 반도체 생산 현장이나 기타 산업현장에 적용되는 공기조화장치를 이용하여 휘발성유기화합물을 제거할 수 있게 한다면 안전한 근로환경을 만들 수 있을 것이다.Therefore, a safe working environment can be created if volatile organic compounds can be removed using an air conditioner applied to semiconductor production sites or other industrial sites.

한편, 휘발성유기화합물을 제거할 수 있게 한 공기조화장치에 관한 기술로는 대한민국 등록특허공보 제10-2311002호의 '2개의 광촉매 미디어 사이에 UV LED가 구비되어 유해물질, 세균, 바이러스를 제거하는 기능을 가지는 공지조화기용 다기능 필터 어셈블리와 이를 구비하는 공기조화기'(이하, '선행기술'이라고 함)가 게시되어 있다.On the other hand, as a technology for an air conditioner capable of removing volatile organic compounds, the function of removing harmful substances, bacteria, and viruses by providing a UV LED between two photocatalytic media in Korean Patent Registration No. 10-2311002 A multi-function filter assembly for a public air conditioner having a ', and an air conditioner having the same' (hereinafter referred to as 'prior art') have been posted.

상기 선행기술은, "1차, 2차 복합 광촉매 미디어가 소정의 간격으로 이격되게 설치되어 그 사이에 2개의 UV LED 모듈 바를 대향되도록 설치하여, 상기 1차, 2차 복합 광촉매 미디어 사이에서 자외선이 마주되게 조사되도록 이루어진 유해물질 제거 및 살균수단과; 상기 유해물질 제거 및 살균수단의 2차 복합 광촉매 미디어 후방에 설치되어 공기 중의 미세먼지를 제거할 수 있도록 하는 미세먼지 필터를 이용한 미세먼지제거수단과; 상기 유해물질 제거 및 살균수단과 미세먼지제거수단을 하나의 구성으로 이루어지도록 하는 카세트를 포함하며, 상기 미세먼지 필터의 전면부에는 2차 복합 광촉매 미디어가 삽입되는 2차 광촉매 미디어 설치부가 형성되어 2차 복합 광촉매 미디어는 미세먼지 필터와 함께 카세트에 설치됨을 특징"으로 하는 것으로서, 광촉매 미디어와 UV LED 모듈 바를 포함하는 유해물질 제거 및 살균수단을 구비하여 휘발성유기화합물(VOCs)을 포함하는 유해물질을 제거할 수 있게 한 기술이다.The prior art is, "The primary and secondary composite photocatalyst media are installed to be spaced apart at a predetermined interval, and two UV LED module bars are installed to face each other between the first and second composite photocatalyst media, so that UV rays are emitted between the primary and secondary composite photocatalyst media. A means for removing and sterilizing harmful substances configured to be irradiated to face each other; and a cassette for configuring the harmful substance removal and sterilization means and the fine dust removal means in one configuration, and a secondary photocatalyst media installation part into which the secondary composite photocatalytic media is inserted is formed on the front part of the fine dust filter. The secondary composite photocatalyst media is characterized in that it is installed in a cassette together with a fine dust filter, and it is equipped with a means of removing and sterilizing harmful substances including the photocatalyst media and UV LED module bar, and harmful substances including volatile organic compounds (VOCs) It is a technique that makes it possible to remove

그런데 상기 선행기술에 개시된 광촉매 미디어의 경우 파장이 400㎚보다 짧은 자외선에 의해 활성화되므로 태양광으로 인한 활성화 효율이 떨어지며, 실내에서 사용하기 위해서는 좌외선 램프가 필수적으로 설치되어야 하는 문제가 있다.However, in the case of the photocatalytic media disclosed in the prior art, since it is activated by ultraviolet rays having a wavelength shorter than 400 nm, the activation efficiency due to sunlight decreases, and there is a problem that a left ultraviolet lamp must be installed for indoor use.

아울러, 상기 자외선 램프에서 방출되는 자외선은 사람에게 장시간 노출되면 피부질환을 일으키는 등의 문제가 있다.In addition, there is a problem in that the ultraviolet rays emitted from the ultraviolet lamp cause a skin disease when exposed to a person for a long time.

[문헌 1] 대한민국 등록특허공보 제10-2311002호(2021.10.01. 등록)[Document 1] Republic of Korea Patent Publication No. 10-2311002 (Registered on Jan. 1, 2021)

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로서, 공기조화장치에 광촉매를 적용하여 공기 중의 휘발성유기화합물을 제거할 수 있게 하되, 상기 광촉매가 형광등을 포함한 가시광 영역에서도 활성화될 수 있게 함으로써 휘발성유기화합물 제거 효과가 향상될 수 있도록 한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기 및 그 제조방법을 제공하는 것을 목적으로 한다.The present invention has been devised to solve the above problems, and it is possible to remove volatile organic compounds in the air by applying a photocatalyst to an air conditioner, but the photocatalyst can be activated even in a visible light region including a fluorescent lamp. An object of the present invention is to provide a heat exchanger for an air conditioner having a volatile organic compound removal function and a manufacturing method therefor so that the organic compound removal effect can be improved.

본 발명의 해결하고자 하는 과제는 언급한 과제로 제한되지 않는다. 언급하지 않은 다른 기술적 과제들은 이하의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.The problems to be solved by the present invention are not limited to the aforementioned problems. Other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

상기와 같은 과제를 해결하기 위하여 본 발명에 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기는, 상호 이격되게 배열된 다수의 열교환핀과, 상기 열교환핀을 관통하도록 설치된 열교환튜브를 포함하는 공기조화장치용 열교환기에 있어서, 상기 열교환핀에는 가시광 응답형 광촉매가 코팅된 것을 특징으로 한다.In order to solve the above problems, a heat exchanger for an air conditioner having a volatile organic compound removal function according to an embodiment of the present invention includes a plurality of heat exchange fins arranged to be spaced apart from each other, and a heat exchange tube installed to pass through the heat exchange fins. In the heat exchanger for an air conditioner comprising: a visible light responsive photocatalyst is coated on the heat exchange fin.

본 발명의 실시예에서, 상기 열교환기에는 상기 열교환핀에 코팅된 광촉매를 활성화하기 위한 광원이 설치되고, 상기 광촉매가 코팅된 열교환핀의 사이사이에는 상기 광원에서 조사된 빛을 열교환핀으로 반사하기 위한 반사판이 설치된다.In an embodiment of the present invention, a light source for activating the photocatalyst coated on the heat exchange fin is installed in the heat exchanger, and the light irradiated from the light source is reflected to the heat exchange fin between the heat exchange fins coated with the photocatalyst A reflector is installed for

본 발명의 실시예에서, 상기 광촉매는, 산화티타늄 50 내지 95중량%; 산화텅스텐 또는 구리텅스텐산화물 5 내지 50 중량%; 및 백금 0.001 내지 0.1중량%;를 포함하는 혼합물로 이루어진다.In an embodiment of the present invention, the photocatalyst comprises 50 to 95 wt% of titanium oxide; 5 to 50% by weight of tungsten oxide or copper tungsten oxide; And 0.001 to 0.1% by weight of platinum; consists of a mixture comprising.

한편, 상기와 같은 과제를 해결하기 위하여 본 발명에 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기의 제조방법은, 가시광 응답형 광촉매 소재를 제작하는 광촉매 소재 제작 단계; 상기 열교환핀에 상기 광촉매 소재를 코팅하는 광촉매 소재 코팅 단계; 및 상기 열교환핀과 열교환튜브를 조립하는 조립 단계;를 포함하여 이루어진다.On the other hand, in order to solve the above problems, according to an embodiment of the present invention, there is provided a method of manufacturing a heat exchanger for an air conditioner having a volatile organic compound removal function, comprising: a photocatalyst material manufacturing step of manufacturing a visible light responsive photocatalyst material; a photocatalytic material coating step of coating the photocatalytic material on the heat exchange fins; and an assembling step of assembling the heat exchange fins and the heat exchange tube.

본 발명의 실시예에서, 상기 광촉매 소재 제작 단계는, 수산화티탄 겔 또는 결정화된 산화티타늄으로 된 산화티타늄 재료와, 초경슬러지를 산화시킨 산화텅스텐에 수산화나트륨 수용액을 넣고 가열하여 얻은 나트륨텅스테이트를 양이온수지를 통과시켜 만들어진 산화텅스텐 콜로이드로 된 산화텅스텐 재료를 혼합하는 재료 혼합 단계; 및 상기 산화티타늄 재료와 산화텅스텐 재료의 혼합물을 400 내지 600℃로 열처리하는 열처리 단계;를 포함하여 이루어진다.In an embodiment of the present invention, the photocatalyst material manufacturing step includes adding sodium hydroxide aqueous solution to tungsten oxide oxidized by titanium hydroxide gel or crystallized titanium oxide and sodium tungstate obtained by heating cations. a material mixing step of mixing a tungsten oxide material made of a tungsten oxide colloid made by passing a resin; and a heat treatment step of heat-treating the mixture of the titanium oxide material and the tungsten oxide material at 400 to 600°C.

본 발명의 실시예에서, 상기 광촉매 소재 코팅 단계는, 상기 열교환핀에 무기질 프라이머를 도포하는 프라이머 도포 단계; 상기 광촉매 소재에 무기질 바인더를 혼합하여 졸(sol) 상태의 광촉매 소재를 제작하는 광촉매 졸 제작 단계; 및 상기 광촉매 졸을 상기 열교환핀에 코팅하는 광촉매 졸 코팅 단계;를 포함하여 이루어진다.In an embodiment of the present invention, the coating of the photocatalyst material may include: a primer application step of applying an inorganic primer to the heat exchange fin; A photocatalyst sol production step of mixing the photocatalyst material with an inorganic binder to produce a photocatalyst material in a sol state; and a photocatalytic sol coating step of coating the photocatalytic sol on the heat exchange fins.

본 발명의 실시예에서, 상기 무기질 바인더는, 규산나트륨 20 내지 30중량%, 규산칼륨 5 내지 15중량%, 물 50 내지 70중량% 및 분산제 3 내지 7중량%를 250 내지 350℃의 온도에서 중합반응시켜 제작된다.In an embodiment of the present invention, the inorganic binder is 20 to 30% by weight of sodium silicate, 5 to 15% by weight of potassium silicate, 50 to 70% by weight of water and 3 to 7% by weight of a dispersant polymerized at a temperature of 250 to 350 ℃ produced by reacting.

본 발명의 실시예에 의하면, 열교환핀에 가시광 응답형 광촉매가 코팅됨에 따라 상기 열교환핀을 통과하는 공기 중의 휘발성유기화합물을 제거할 수 있으며, 상기 광촉매가 형광등을 포함한 일반 조명등, LED 및 OLED 조명 등의 가시광 영역에서 활성화되므로 휘발성유기화합물 제거 성능이 더욱 향상될 수 있는 효과가 있다.According to an embodiment of the present invention, as the visible light responsive photocatalyst is coated on the heat exchange fin, volatile organic compounds in the air passing through the heat exchange fin can be removed, and the photocatalyst is a general lighting including a fluorescent lamp, LED and OLED lighting, etc. Since it is activated in the visible light region of

도 1은 본 발명의 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기의 정면 구성도.
도 2는 본 발명의 다른 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기의 정면 구성도.
도 3은 본 발명의 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기 제조방법의 흐름도.
1 is a front configuration view of a heat exchanger for an air conditioner having a volatile organic compound removal function according to an embodiment of the present invention;
2 is a front view of a heat exchanger for an air conditioner having a volatile organic compound removal function according to another embodiment of the present invention;
3 is a flowchart of a method for manufacturing a heat exchanger for an air conditioner having a volatile organic compound removal function according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다. 설명의 편의를 위해 도면에 도시된 구성요소는 과장되거나 생략되거나 또는 개략적으로 표현될 수 있다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For convenience of description, components shown in the drawings may be exaggerated, omitted, or schematically represented.

도 1은 본 발명의 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기의 정면 구성도이고, 도 2는 본 발명의 다른 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기의 정면 구성도이다.1 is a front configuration view of a heat exchanger for an air conditioner having a volatile organic compound removal function according to an embodiment of the present invention, and FIG. 2 is an air conditioner having a volatile organic compound removal function according to another embodiment of the present invention. This is the front configuration diagram of the heat exchanger.

도 1 및 도 2에 도시된 바와 같이, 본 발명에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기(이하, '열교환기'라고 약칭함)는 상호 이격되게 배열된 다수의 열교환핀(110)과, 상기 열교환핀(110)을 관통하도록 설치된 열교환튜브(120)를 포함하는 공기조화장치용 열교환기(100)에 있어서, 상기 열교환핀(110)에는 가시광 응답형 광촉매(130)가 코팅된 것을 특징으로 한다.1 and 2, the heat exchanger for an air conditioner having a volatile organic compound removal function according to the present invention (hereinafter abbreviated as 'heat exchanger') has a plurality of heat exchange fins ( In the heat exchanger 100 for an air conditioner including 110) and a heat exchange tube 120 installed to pass through the heat exchange fin 110, the heat exchange fin 110 is coated with a visible light responsive photocatalyst 130 characterized by being

여기서 상기 광촉매(130)는 산화티타늄 50 내지 95중량%; 및 산화텅스텐 또는 구리텅스텐산화물 5 내지 50 중량%;를 포함하는 혼합물로 이루어진다.Wherein the photocatalyst 130 is titanium oxide 50 to 95% by weight; and 5 to 50 wt% of tungsten oxide or copper tungsten oxide.

필요에 따라 상기 혼합물에는 조촉매로서 백금이 첨가될 수 있다. 이때 상기 광촉매(130)는 산화티타늄 50 내지 95중량%; 산화텅스텐 또는 구리텅스텐산화물 5 내지 50 중량%; 및 백금 0.001 내지 0.1중량%;를 포함하는 혼합물로 이루어질 수 있다.If necessary, platinum may be added to the mixture as a co-catalyst. At this time, the photocatalyst 130 is titanium oxide 50 to 95% by weight; 5 to 50% by weight of tungsten oxide or copper tungsten oxide; and 0.001 to 0.1 wt% of platinum; may be made of a mixture comprising.

상기와 같이 본 발명의 열교환기(100)에서 상기 광촉매(130)는 산화티타늄과 산화텅스텐을 주재료로 사용한다. 상기 산화티타늄은 자외선 영역에서 광촉매로써 효과가 우수한 것으로 확인되었으나, 가시광 영역에서는 광촉매 효과가 미미하다는 단점이 있다. 즉, 태양광에서 자외광은 약 4%에 지나지 않기 때문에 자외광이 거의 없는 실내에서는 광촉매로써의 효율이 크게 떨어진다. 반면에 산화티타늄은 가시광 영역에서 광촉매 효과가 있으나, 산화텅스텐을 단독으로 사용하는 경우 특정 파장에서만 효과가 있고 전반적으로 가시광에서 광촉매 효과가 적은 것으로 알려졌다.As described above, in the heat exchanger 100 of the present invention, the photocatalyst 130 uses titanium oxide and tungsten oxide as main materials. The titanium oxide was confirmed to have an excellent effect as a photocatalyst in the ultraviolet region, but has a disadvantage in that the photocatalytic effect is insignificant in the visible region. That is, since ultraviolet light is only about 4% in sunlight, the efficiency as a photocatalyst is greatly reduced in an indoor environment where there is little ultraviolet light. On the other hand, titanium oxide has a photocatalytic effect in the visible region, but it is known that when tungsten oxide is used alone, it is effective only at a specific wavelength and generally has little photocatalytic effect in visible light.

본 발명에서는 산화티타늄과 산화텅스텐을 일정 비율로 혼합하여 가시광 응답형 광촉매(130)를 제작함으로써 산화티타늄과 산화텅스텐을 각각 단독으로 사용하는 경우보다 가시광 영역에서의 광촉매 효과가 우수하다.In the present invention, by mixing titanium oxide and tungsten oxide in a certain ratio to prepare the visible light responsive photocatalyst 130, the photocatalytic effect in the visible light region is superior to that when titanium oxide and tungsten oxide are used alone.

한편, 도 2에 도시된 바와 같이 본 발명의 열교환기(100)에는 상기 열교환핀(110)에 코팅된 광촉매(130)를 활성화하기 위한 광원(140)이 설치되고, 상기 광촉매(130)가 코팅된 열교환핀(110)의 사이사이에는 상기 광원(140)에서 조사된 빛을 열교환핀(110)으로 반사하는 반사판(150)이 설치될 수 있다.Meanwhile, as shown in FIG. 2 , a light source 140 for activating the photocatalyst 130 coated on the heat exchange fin 110 is installed in the heat exchanger 100 of the present invention, and the photocatalyst 130 is coated A reflective plate 150 for reflecting the light irradiated from the light source 140 to the heat exchange fin 110 may be installed between the heat exchange fins 110 .

여기서 상기 광원(140)은 400 내지 800㎚ 파장의 백색광을 방사하는 LED램프가 사용된다. 상기 광원(140)은 상기 열교환기(100)의 상부 및 하부 각각에 상기 열교환핀(110)과 반사판(150)이 배열된 방향을 따라 다수가 배열될 수 있다. 이에 의하면, 태양광으로 인한 상기 광촉매(130)의 활성도가 미미할 경우 상기 광원(140)을 이용하여 광촉매(130)의 활성도를 높일 수 있다.Here, as the light source 140, an LED lamp emitting white light having a wavelength of 400 to 800 nm is used. A plurality of the light sources 140 may be arranged along the direction in which the heat exchange fins 110 and the reflectors 150 are arranged on the upper and lower portions of the heat exchanger 100 , respectively. Accordingly, when the activity of the photocatalyst 130 due to sunlight is insignificant, the activity of the photocatalyst 130 can be increased by using the light source 140 .

상기 반사판(150)은 양측 표면이 빛을 반사할 수 있게 형성되어 반사판(150)과 인접하게 배치된 두 열교환핀(110)에 상기 광원(140)에서 조사된 빛을 반사할 수 있게 구성된다. 이에 의하면, 상기 열교환핀(110)에 코팅된 광촉매(130)에 가해지는 광량이 증가시킬 수 있다.The reflective plate 150 is configured to reflect the light emitted from the light source 140 to the two heat exchange fins 110 disposed adjacent to the reflective plate 150 as both surfaces of the reflective plate 150 are formed to reflect light. Accordingly, the amount of light applied to the photocatalyst 130 coated on the heat exchange fin 110 can be increased.

상기 반사판(150)은 상기 열교환핀(110)과 동일한 형상의 금속판으로 이루어져 열교환핀으로써의 기능도 수행할 수 있게 구성된다.The reflection plate 150 is made of a metal plate having the same shape as the heat exchange fin 110 and is configured to function as a heat exchange fin.

이하, 도 3을 더 참조하여 본 발명의 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기의 제조방법을 설명한다.Hereinafter, a method of manufacturing a heat exchanger for an air conditioner having a volatile organic compound removal function according to an embodiment of the present invention will be described with further reference to FIG. 3 .

도 3은 본 발명의 실시예에 의한 휘발성유기화합물 제거기능을 갖는 공기조화장치용 열교환기 제조방법의 흐름도이다.3 is a flowchart of a method for manufacturing a heat exchanger for an air conditioner having a volatile organic compound removal function according to an embodiment of the present invention.

도 3에 도시된 바와 같이 본 발명의 실시예에 의한 열교환기의 제조방법은, 광촉매 소재 제작 단계(S10), 광촉매 소재 코팅 단계(S20) 및 조립 단계(S30)를 포함하여 이루어진다.As shown in FIG. 3 , the method of manufacturing a heat exchanger according to an embodiment of the present invention includes a photocatalyst material manufacturing step (S10), a photocatalyst material coating step (S20) and an assembling step (S30).

상기 광촉매 소재 제작 단계(S10)는 가시광 응답성 광촉매 소재를 제작하기 위한 단계로서, 산화티타늄 재료와 산화텅스텐 재료를 혼합하는 재료 혼합 단계(S11); 및 상기 산화티타늄 재료와 산화텅스텐 재료의 혼합물을 400 내지 600℃로 열처리하는 열처리 단계(S12);를 포함하여 이루어진다.The photocatalyst material manufacturing step (S10) is a step for manufacturing a visible light responsive photocatalyst material, a material mixing step (S11) of mixing a titanium oxide material and a tungsten oxide material; and a heat treatment step (S12) of heat-treating the mixture of the titanium oxide material and the tungsten oxide material at 400 to 600°C.

상기 재료 혼합 단계(S11)에서 상기 산화티타늄 재료는 티타늄금속염액을 가수분해한 수산화티탄 겔이나, 수산화티탄 겔을 열처리하여 결정화된 산화티타늄을 사용한다. 그리고 상기 산화텅스텐 재료는 초경슬러지를 산화시킨 산화텅스텐에 수산화나트륨 수용액을 넣고 가열하여 얻은 나트륨텅스테이트를 양이온교환수지를 통과시켜 만들어 산화텅스텐 콜로이드를 사용한다.In the material mixing step (S11), the titanium oxide material is a titanium hydroxide gel obtained by hydrolyzing a titanium metal salt solution, or a titanium oxide crystallized by heat-treating the titanium hydroxide gel. In addition, the tungsten oxide material uses a tungsten oxide colloid by passing sodium tungstate obtained by heating an aqueous solution of sodium hydroxide into tungsten oxide oxidized from cemented carbide sludge through a cation exchange resin.

여기서 콜로이드 서스펜션(colloidal suspension) 또는 콜로이드는, 용매와 용질이 완전히 혼합되어 단일상을 이루는 용액과 달리, 크기가 1 내지 1000nm이고 불용성인 물질이 분산된 상태로 다른 물질과 섞여 있는 혼합물이다. 따라서 산화텅스텐 콜로이드는 산화텅스텐 미립자가 분사된 상태로 다른 물질과 섞여 있는 것이다. 이러한 산화텅스텐 콜로이드는 수산화티탄 겔이나 산화티타늄과 혼합될 때 장시간의 기계적 혼합이 요구되지 않을 뿐만 아니라 산화티타늄과의 결합이 쉽게 이루어진다.Here, a colloidal suspension or colloid is a mixture in which a solvent and a solute are completely mixed to form a single phase, and an insoluble substance is mixed with other substances in a dispersed state with a size of 1 to 1000 nm, unlike a solution. Therefore, the tungsten oxide colloid is mixed with other materials in a state in which tungsten oxide particles are sprayed. When these tungsten oxide colloids are mixed with titanium hydroxide gel or titanium oxide, mechanical mixing for a long time is not required, and bonding with titanium oxide is easily achieved.

구체적으로, 산화티타늄(TiO2)의 재료는 티타늄금속염액을 용매로 분산시킨 후 열가수분해 공정에 따라 가수분해시킨다. 이때 열가수분해의 온도는 60 내지 100℃이다. 이와 같이 열가수분해 하면 비정질의 수산화티탄 겔이 얻어진다. 수산화티탄의 정량적인 화학식은 Ti(OH)4이지만 보통 비정질 상태에서는 Ti-OH 결합과 Ti-O 결합이 혼재하므로 정량화학식으로 표기하지는 않는다.Specifically, the titanium oxide (TiO 2 ) material is hydrolyzed according to the thermal hydrolysis process after dispersing the titanium metal salt solution in the solvent. At this time, the temperature of the thermal hydrolysis is 60 to 100 ℃. Upon thermal hydrolysis in this way, an amorphous titanium hydroxide gel is obtained. Although the quantitative chemical formula of titanium hydroxide is Ti(OH) 4 , it is not usually expressed as a quantitative chemical formula because Ti-OH bonds and Ti-O bonds are mixed in an amorphous state.

그리고 수산화티탄 겔을 물 또는 알콜로 세정한 후 분리 여과하여 광촉매 재료로 사용하거나 세정한 수산화티탄 겔을 다시 물에 재산분시킨 후 압력용기에 넣고 열처리 예를 들어, 100 내지 300℃에서 100시간 열처리하여, 결정화된 산화티타늄을 제조하여 광촉매 재료로 사용할 수 있다.Then, the titanium hydroxide gel is washed with water or alcohol, separated and filtered to be used as a photocatalyst material, or the washed titanium hydroxide gel is re-dispersed in water and then placed in a pressure vessel for heat treatment, for example, heat treatment at 100 to 300°C for 100 hours Thus, crystallized titanium oxide can be prepared and used as a photocatalyst material.

이어 산화텅스텐(WO3)의 재료는 국내에서 구입하기 어렵고 산화텅스텐 분말을 콜로이드(colloidal) 상태로 제조하는 것은 매우 어렵기 때문에 초경슬러지로부터 산화텅스텐 콜로이드를 제조하여 사용한다.Next, tungsten oxide (WO3) material is difficult to purchase in Korea and it is very difficult to produce tungsten oxide powder in a colloidal state.

즉, 초경슬러지로부터 산화텅스텐 콜로이드 상태로 제조하기 위해서는, 먼저 초경슬러지에서 산화텅스텐과 나머지 불순물을 분리하는 공정이 필요한데, 이를 위해서 초경슬러지를 600 내지 800℃의 높은 온도에서 산화시켜 불순물을 함유한 산화텅스텐 슬러지를 제조한다. 그리고 제조된 불순물 함유 산화텅스텐을 수산화나트륨 수용액을 100℃로 가열한 용액에 넣고 가열하면서 교반하여 나트륨텅스테이트가 되도록 하여 불순물과 분리하는 공정을 수행한다.That is, in order to produce tungsten oxide colloidal from cemented carbide sludge, a process of separating tungsten oxide and remaining impurities from cemented carbide sludge is first required. Tungsten sludge is produced. Then, the prepared impurity-containing tungsten oxide is put in a solution of sodium hydroxide solution heated to 100° C. and stirred while heating to form sodium tungstate, thereby performing a process of separating it from impurities.

이어 제조된 나트륨텅스테이트(sodium tungstat; 텅스텐산나트륨, 나트륨텅스텐산염)는 양이온교환수지를 통과시켜 산화텅스텐 콜로이드로 제조한다. 양이온교환수지는 수용액 속의 양이온과 자신의 양이온을 교환하는 합성수지로서, 양이온교화수지에 나트륨텅스테이트를 통과시키면 양이온이 교환되어 산화텅스텐 콜로이드로 된다.Then, the prepared sodium tungstat (sodium tungstate, sodium tungstate) is passed through a cation exchange resin to prepare a tungsten oxide colloid. A cation exchange resin is a synthetic resin that exchanges its own cations with cations in an aqueous solution. When sodium tungstate is passed through the cation exchange resin, the cations are exchanged to form tungsten oxide colloids.

한편, 산화텅스텐(WO3)의 재료는 구리 등의 제2 원소가 첨가될 수 있다. 예를 들어 구리는 콜로이드 상태의 산화텅스텐에 무수상태의 염화구리(CuCl2)를 반응시켜 제조한다. 즉, 구리의 첨가는 산화텅스텐 콜로이드와의 반응으로 제조한다.Meanwhile, a second element such as copper may be added to the material of tungsten oxide (WO3). For example, copper is prepared by reacting anhydrous copper chloride (CuCl 2 ) with colloidal tungsten oxide. That is, the addition of copper is prepared by reaction with a colloid of tungsten oxide.

이와 같은 방법으로 제조된 이산화티탄 겔과 산화텅스텐 콜로이드(또는 제2 원소가 첨가된 산화텅스텐 콜로이드)를 적정 비율로 혼합하여 광촉매 재료로 사용한다.The titanium dioxide gel prepared in this way and the tungsten oxide colloid (or the tungsten oxide colloid to which the second element is added) are mixed in an appropriate ratio and used as a photocatalyst material.

바람직하게, 산화티타늄과 산화텅스텐의 혼합비율은 산화티타늄 50 내지 95 중량%과 산화텅스텐(또는 구리텅스텐산화물) 5 내지 50 중량%로 혼합한다.Preferably, the mixing ratio of titanium oxide and tungsten oxide is 50 to 95 wt% of titanium oxide and 5 to 50 wt% of tungsten oxide (or copper tungsten oxide).

또한, 조촉매로서 상기 백금을 첨가한다. 백금(Pt)은 산화티타늄 졸이나 산화텅스텐 콜로이드 중 어느 쪽에 첨가하여도 좋으나, 반드시 티타늄산화물과 산화텅스텐 콜로이드를 합성하기 이전에 첨가해야 한다. 이때 백금은 전체 중량에 대해 0.001 내지 0.1중량%가 되도록 첨가한다.Further, the platinum is added as a co-catalyst. Platinum (Pt) may be added to either the titanium oxide sol or the tungsten oxide colloid, but must be added before synthesizing the titanium oxide and the tungsten oxide colloid. At this time, platinum is added so as to be 0.001 to 0.1% by weight based on the total weight.

이와 같이 제조된 백금 및 산화텅스텐(또는 구리텅스텐산화물) 첨가 티타늄산화물을 상기 열처리 단계(S12)를 통해 열처리하여 가시광 응답형 광촉매 소재를 제조한다. 이때, 상기 열처리 단계(S12)에서는 백금 및 산화텅스텐(또는 구리텅스텐산화물) 첨가 티타늄산화물을 티타늄산화물의 조직이 아나타제(이산화티타늄)의 비율이 70% 이상이 되도록 400 내지 600℃의 온도 범위에서 약 2시간 열처리하여 가시광 응답형 광촉매 소재로 제조한다.Platinum and tungsten oxide (or copper tungsten oxide)-added titanium oxide prepared in this way is heat-treated through the heat treatment step (S12) to prepare a visible light responsive photocatalyst material. At this time, in the heat treatment step (S12), platinum and tungsten oxide (or copper tungsten oxide) are added titanium oxide in a temperature range of 400 to 600° C. so that the ratio of anatase (titanium dioxide) in the structure of the titanium oxide is 70% or more. It is heat treated for 2 hours to make a visible light responsive photocatalyst material.

상기 광촉매 소재 코팅 단계(S20)는, 상기 열교환핀(110)에 무기질 프라이머를 도포하는 프라이머 도포 단계(S21); 상기 광촉매 소재에 무기질 바인더를 혼합하여 졸(sol) 상태의 광촉매 소재를 제작하는 광촉매 졸 제작 단계(S22); 및 상기 광촉매 졸을 상기 열교환핀(110)에 코팅하는 광촉매 졸 코팅 단계(S23);를 포함하여 이루어진다.The photocatalytic material coating step (S20) includes a primer application step (S21) of applying an inorganic primer to the heat exchange fin 110; A photocatalyst sol production step (S22) of mixing the photocatalyst material with an inorganic binder to produce a photocatalyst material in a sol state; and a photocatalytic sol coating step (S23) of coating the photocatalytic sol on the heat exchange fin 110.

상기 프라이머 도포 단계(S21)에서 사용되는 프라이머는, 유기물 프라이머가 사용될 경우 광촉매(130)의 활성에 의해 유기물이 분해될 수 있으므로 무기물 프라이머가 사용된다. 필요에 따라 상기 프라이머 도포 단계(S21)가 실시되기 전에, 상기 열교환핀(110)을 세척 및 건조하는 단계가 실시될 수 있다. 그리고 상기 프라이머 도포 단계(S21) 이후에는 도포된 프라이머를 건조하는 단계가 실시될 수 있다.As the primer used in the primer application step (S21), when an organic primer is used, the organic material may be decomposed by the activity of the photocatalyst 130, and thus an inorganic primer is used. If necessary, before the primer application step (S21) is performed, the steps of washing and drying the heat exchange fins 110 may be performed. And drying the applied primer may be performed after the primer application step (S21).

상기 광촉매 졸 제작 단계(S22)에서는 상기 광촉매 소재 제작 단계(S10)에서 제작된 광촉매 소재를 무기질 바인더와 혼합하여 졸 상태로 만들게 된다. 이때 상기 바인더는 상기 프라이머와 마찬가지로 광촉매(130)의 활성에 의해 분해되지 않도록 무기질 바인더가 사용된다. 구체적으로 상기 무기질 바인더는 규산나트륨 20 내지 30중량%, 규산칼륨 5 내지 15중량%, 물 50 내지 70중량% 및 분산제 3 내지 7중량%를 250 내지 350℃의 온도에서 중합반응시켜 제작된다. 이렇게 제작된 무기질 바인더는 광촉매 소재를 알루미늄으로 된 열교환핀(110)에 박리현상 없이 코팅할 수 있게 한다.In the photocatalytic sol manufacturing step (S22), the photocatalyst material manufactured in the photocatalytic material manufacturing step (S10) is mixed with an inorganic binder to form a sol state. In this case, the inorganic binder is used so that the binder is not decomposed by the activity of the photocatalyst 130 like the primer. Specifically, the inorganic binder is prepared by polymerizing 20 to 30% by weight of sodium silicate, 5 to 15% by weight of potassium silicate, 50 to 70% by weight of water, and 3 to 7% by weight of a dispersant at a temperature of 250 to 350°C. The inorganic binder prepared in this way enables the photocatalytic material to be coated on the heat exchange fin 110 made of aluminum without peeling.

상기 광촉매 졸 코팅 단계(S23)는 고속 및 대량 생산에 적합한 그라비어 코팅 방식에 의해 실시될 수 있다. 상기 광촉매 졸 코팅 단계(S23) 이후에는 상기 열교환핀(110)에 코팅된 광촉매(130)를 건조 및 경화하는 단계가 실시될 수있다.The photocatalytic sol coating step (S23) may be performed by a gravure coating method suitable for high-speed and mass production. After the photocatalytic sol coating step (S23), drying and curing the photocatalyst 130 coated on the heat exchange fin 110 may be performed.

상기 조립 단계(S30)는 상기 광촉매(130)가 코팅된 열교환핀(110)과 상기 열교환튜브(120)를 조립하는 단계이다.The assembling step S30 is a step of assembling the heat exchange fin 110 coated with the photocatalyst 130 and the heat exchange tube 120 .

상기 열교환핀(110)과 열교환튜브(120)의 조립은 공지의 열교환기 제작시 사용되는 조립 방식과 동일한 방식으로 실시될 수 있다.The assembly of the heat exchange fin 110 and the heat exchange tube 120 may be performed in the same manner as the assembly method used in manufacturing a known heat exchanger.

상기와 같이 구성된 본 발명의 열교환기 및 그 제조방법에 의하면, 상기 열교환핀(110)에 가시광 응답형 광촉매(130)가 코팅됨에 따라 상기 열교환핀(110)을 통과하는 공기 중의 휘발성유기화합물(VOCs : volatile organic compounds)을 제거할 수 있으며, 나아가 상기 광촉매(130)가 형광등을 포함한 일반 조명등, LED 및 OLED 조명 등의 가시광 영역에서 활성화되므로 휘발성유기화합물 제거 성능이 더욱 향상될 수 있다.According to the heat exchanger of the present invention and its manufacturing method configured as described above, as the visible light responsive photocatalyst 130 is coated on the heat exchange fin 110 , the volatile organic compounds (VOCs) in the air passing through the heat exchange fin 110 . : volatile organic compounds) can be removed, and further, since the photocatalyst 130 is activated in the visible light region such as general lighting including fluorescent lamps, LED and OLED lighting, the performance of removing volatile organic compounds can be further improved.

이상에서 본 발명을 설명함에 있어 한정된 실시예 및 도면을 참조하여 설명하였으나, 이는 예시적인 것으로서, 본 발명의 기술사상의 범위 내에서 다양한 변형 실시가 가능하다는 점은 통상의 기술자에게 자명할 것이다. 따라서, 본 발명의 보호범위는 청구범위의 기재 및 그 균등 범위에 의해 정해져야 한다.In the foregoing, the present invention has been described with reference to limited embodiments and drawings, but it will be apparent to those skilled in the art that various modifications are possible within the scope of the technical idea of the present invention. Accordingly, the protection scope of the present invention should be defined by the description of the claims and their equivalents.

100 : 열교환기 110 : 열교환핀
120 : 열교환튜브 130 : 광촉매
140 : 광원 150 : 반사판
100: heat exchanger 110: heat exchange fin
120: heat exchange tube 130: photocatalyst
140: light source 150: reflector

Claims (8)

상호 이격되게 배열된 다수의 열교환핀(110)과, 상기 열교환핀(110)을 관통하도록 설치된 열교환튜브(120)와, 상기 열교환핀(110)에 코팅된 가시광 응답형 광촉매(130)와, 상기 열교환핀(110)에 코팅된 광촉매(130)를 활성화하기 위한 광원(140)과, 상기 열교환핀(110)의 사이사이에 설치되어 상기 광원(140)에서 조사된 빛을 열교환핀(110)으로 반사하는 반사판(150)을 포함하는 공기조화장치용 열교환기(100)를 제조하기 위한 방법으로서,
가시광 응답형 광촉매 소재를 제작하는 광촉매 소재 제작 단계(S10);
상기 열교환핀(110)에 상기 광촉매 소재를 코팅하는 광촉매 소재 코팅 단계(S20); 및
상기 열교환핀(110)과 열교환튜브(120)를 조립하는 조립 단계(S30);를 포함하되,
상기 광촉매(130)는 산화티타늄 50 내지 95중량% 및 구리텅스텐산화물 5 내지 50 중량%를 포함하는 혼합물로 이루어지고,
상기 광촉매 소재 제작 단계(S10)는,
수산화티탄 겔 또는 결정화된 산화티타늄으로 된 산화티타늄 재료와, 초경슬러지를 산화시킨 산화텅스텐에 수산화나트륨 수용액을 넣고 가열하여 얻은 나트륨텅스테이트를 양이온수지를 통과시켜 만들어진 산화텅스텐 콜로이드로 된 산화텅스텐 재료를 혼합하는 재료 혼합 단계(S11); 및
상기 산화티타늄 재료와 산화텅스텐 재료의 혼합물을 400 내지 600℃로 열처리하는 열처리 단계(S12);를 포함하여 이루어지며,
상기 광촉매 소재 코팅 단계(S20)는,
상기 열교환핀(110)에 무기질 프라이머를 도포하는 프라이머 도포 단계(S21);
상기 광촉매 소재에 무기질 바인더를 혼합하여 졸(sol) 상태의 광촉매 소재를 제작하는 광촉매 졸 제작 단계(S22); 및
상기 광촉매 졸을 상기 열교환핀(110)에 코팅하는 광촉매 졸 코팅 단계(S23);를 포함하여 이루어지고,
상기 무기질 바인더는, 규산나트륨 20 내지 30중량%, 규산칼륨 5 내지 15중량%, 물 50 내지 70중량% 및 분산제 3 내지 7중량%를 250 내지 350℃의 온도에서 중합반응시켜 제작된 것을 특징으로 하는 바이러스 제거기능을 갖는 공기조화장치용 열교환기의 제조방법.
A plurality of heat exchange fins 110 arranged to be spaced apart from each other, a heat exchange tube 120 installed to pass through the heat exchange fin 110 , a visible light responsive photocatalyst 130 coated on the heat exchange fin 110 , and the It is installed between the light source 140 for activating the photocatalyst 130 coated on the heat exchange fin 110 and the heat exchange fin 110 and transmits the light irradiated from the light source 140 to the heat exchange fin 110 . A method for manufacturing a heat exchanger (100) for an air conditioner including a reflecting plate (150), the method comprising:
A photocatalyst material manufacturing step of manufacturing a visible light responsive photocatalyst material (S10);
A photocatalyst material coating step of coating the photocatalyst material on the heat exchange fin 110 (S20); and
An assembling step (S30) of assembling the heat exchange fin 110 and the heat exchange tube 120; including,
The photocatalyst 130 is made of a mixture containing 50 to 95 wt% of titanium oxide and 5 to 50 wt% of copper tungsten oxide,
The photocatalytic material production step (S10),
A titanium oxide material made of titanium hydroxide gel or crystallized titanium oxide and a tungsten oxide colloidal tungsten oxide material made by heating sodium tungstate obtained by heating an aqueous solution of sodium hydroxide in tungsten oxide oxidized from cemented carbide sludge. Mixing material mixing step (S11); and
A heat treatment step (S12) of heat-treating the mixture of the titanium oxide material and the tungsten oxide material at 400 to 600° C.; and
The photocatalytic material coating step (S20) is,
a primer application step of applying an inorganic primer to the heat exchange fin 110 (S21);
A photocatalyst sol production step (S22) of mixing the photocatalyst material with an inorganic binder to produce a photocatalyst material in a sol state; and
and a photocatalytic sol coating step (S23) of coating the photocatalytic sol on the heat exchange fin 110;
The inorganic binder is prepared by polymerizing 20 to 30% by weight of sodium silicate, 5 to 15% by weight of potassium silicate, 50 to 70% by weight of water, and 3 to 7% by weight of a dispersant at a temperature of 250 to 350°C. A method of manufacturing a heat exchanger for an air conditioner having a virus removal function.
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KR1020210146178A 2021-10-29 2021-10-29 Heat exchanger for air conditioner having volatile organic compounds removal function and manufacturing method thereof KR102459052B1 (en)

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Citations (8)

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Publication number Priority date Publication date Assignee Title
JP2005300110A (en) * 2004-04-15 2005-10-27 Daikin Ind Ltd Indoor unit for air conditioner
JP2008164238A (en) * 2006-12-28 2008-07-17 Sumitomo Light Metal Ind Ltd Aluminum fin material for heat exchanger, and heat exchanger using it
KR101146899B1 (en) * 2010-05-24 2012-05-15 인하대학교 산학협력단 Photocatalyst having titanium dioxide and a metal tungsten oxide junction structure and preparation method thereof
JP2017512294A (en) * 2014-02-26 2017-05-18 エルジー エレクトロニクス インコーポレイティド Home appliances equipped with a photocatalytic device for visible light
KR101973990B1 (en) * 2018-01-16 2019-04-30 주식회사 임금님명품침대가구 Method for manufacturing pad for brassiere comprising germanium and pad for brassiere manufactured by the same
JP2020032405A (en) * 2018-08-27 2020-03-05 シャープ株式会社 Photocatalyst composition
KR102307194B1 (en) * 2019-12-23 2021-09-30 주식회사 유웰 Automotive air cleaner using photocatalyst filter acting in visible light range
KR102311002B1 (en) 2021-06-09 2021-10-13 한국공조엔지니어링 주식회사 A multifunctional filter assembly for air conditioners and air conditioner with this

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005300110A (en) * 2004-04-15 2005-10-27 Daikin Ind Ltd Indoor unit for air conditioner
JP2008164238A (en) * 2006-12-28 2008-07-17 Sumitomo Light Metal Ind Ltd Aluminum fin material for heat exchanger, and heat exchanger using it
KR101146899B1 (en) * 2010-05-24 2012-05-15 인하대학교 산학협력단 Photocatalyst having titanium dioxide and a metal tungsten oxide junction structure and preparation method thereof
JP2017512294A (en) * 2014-02-26 2017-05-18 エルジー エレクトロニクス インコーポレイティド Home appliances equipped with a photocatalytic device for visible light
KR101973990B1 (en) * 2018-01-16 2019-04-30 주식회사 임금님명품침대가구 Method for manufacturing pad for brassiere comprising germanium and pad for brassiere manufactured by the same
JP2020032405A (en) * 2018-08-27 2020-03-05 シャープ株式会社 Photocatalyst composition
KR102307194B1 (en) * 2019-12-23 2021-09-30 주식회사 유웰 Automotive air cleaner using photocatalyst filter acting in visible light range
KR102311002B1 (en) 2021-06-09 2021-10-13 한국공조엔지니어링 주식회사 A multifunctional filter assembly for air conditioners and air conditioner with this

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