KR19980080920A - Manufacturing method of dehumidifying element - Google Patents
Manufacturing method of dehumidifying element Download PDFInfo
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- KR19980080920A KR19980080920A KR1019980011169A KR19980011169A KR19980080920A KR 19980080920 A KR19980080920 A KR 19980080920A KR 1019980011169 A KR1019980011169 A KR 1019980011169A KR 19980011169 A KR19980011169 A KR 19980011169A KR 19980080920 A KR19980080920 A KR 19980080920A
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- South Korea
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- honeycomb structure
- silica gel
- dehumidifying element
- inorganic fiber
- silicate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/263—Drying gases or vapours by absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1032—Desiccant wheel
- F24F2203/1036—Details
Abstract
본 발명의 제습용소자의 제조방법은, 무기섬유페이퍼의 표면을 실리카겔로 도포하는 공정, 상기 도포된 무기섬유페이퍼를 벌집모양구조로 제작하는 공정, 상기 벌집모양구조를 알칼리실리케이트수용액에 침지하는 공정, 상기 함침된 벌집모양구조를 산처리하는 공정 및 상기 벌집모양구조를 소성하는 공정으로 이루어진 것을 특징으로 한다.In the method of manufacturing the dehumidifying element of the present invention, a step of coating the surface of the inorganic fiber paper with silica gel, a step of producing the coated inorganic fiber paper in a honeycomb structure, a step of dipping the honeycomb structure in an alkali silicate aqueous solution , And acid-treating the impregnated honeycomb structure and firing the honeycomb structure.
Description
본 발명은 실리카겔을 함유하는 제습용소자의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a dehumidifying element containing silica gel.
현재 재사용 가능한 제습기나 토탈열교환기내에 일체화해서 이용되는 제습용소자는 실리카겔, 제올라이트 또는 액화무기염등의 건조체를 지지하는 무기섬유로 이루어진 벌집모양구조를 포함하고 있다. 특히, 건조제로서 실리카겔을 사용하는 제습용소자를 높은 제습성능 뿐만 아니라 재생이 용이하고 저렴하므로 시장에 널리 보급되어있다.Currently, a dehumidifying element used integrally in a reusable dehumidifier or a total heat exchanger includes a honeycomb structure made of inorganic fibers supporting a dry body such as silica gel, zeolite or liquefied inorganic salt. In particular, the dehumidifying device using silica gel as a desiccant is widely used in the market because of its high dehumidification performance as well as easy regeneration and low cost.
실리카겔이 지지된 벌집모양구조로 이루어진 제습용소자는, 유리페이퍼 또는 세라믹페이퍼등의 무기섬유페이퍼로 이루어진 벌집모양구조를 알칼리실리케이트수용액중에 침지하고, 함침된 벌집모양구조를 산처리해서 실리케이트를 실리카겔로 변화시킨 후, 건조하는 방법, 상기 벌집모양구조를 알칼리실리케이트수용액중에 침지하고, 이 함침된 벌집모양구조를 건조한 후, 산처리하는 방법, 또는 상기 벌집모양구조를 우선 알칼리실리케이트수용액에, 그 다음에는 수용성의 칼슘염이나 마그네슘염의 수용액에 침지한 후, 산처리하는 방법에 의해 제조되고 있다.In the dehumidifying element having a honeycomb structure in which silica gel is supported, a honeycomb structure made of inorganic fiber paper such as glass paper or ceramic paper is immersed in an alkali silicate aqueous solution, and the silicate is converted into silica gel by acid treatment of the impregnated honeycomb structure. After drying, the honeycomb structure is immersed in an alkali silicate solution, the impregnated honeycomb structure is dried, and then acid treated, or the honeycomb structure is first soluble in an alkali silicate solution, and then water-soluble. It is manufactured by the method of acid-processing, after immersing in the aqueous solution of the calcium salt and magnesium salt.
알칼리실리케이트를 산처리하여 실리카겔을 생성하는 공정은, 복잡하고 많은 단계를 포함한다. 따라서, 실리카겔로의 변환은 1단계의 반응을 통해서 완결되는 것이 바람직하다. 그러나 1회의 함침동작에 의해 퇴적, 즉 부착될 수 있는 실리카겔의 양은 제한되어 있기 때문에, 제습용소자로서 예상되는 성능을 위한 실리카겔의 충분한 양을 확보하기 위해서 함침과 산처리공정을 수회 반복할 필요가 있다. 함침용액의 알칼리실리케이트농도를 증가시키면 실리카겔의 생성 및 부착량도 증가하지만, 원래 점성이 높은 알칼리실리케이트수용액은 농도를 증가시켜 사용할 경우 벌집모양구조를 막히게 하기 쉽다. 따라서, 1회의 동작당 생성·부착가능한 실리카겔의 양은 한계가 있다. 이 때문에, 공정을 수회 반복할 필요가 있다.The process of acid treating alkali silicates to produce silica gel is complex and involves many steps. Therefore, the conversion to silica gel is preferably completed through a one-step reaction. However, since the amount of silica gel that can be deposited, that is, adhered by one impregnation operation is limited, it is necessary to repeat the impregnation and acid treatment several times to secure a sufficient amount of silica gel for the expected performance as a dehumidifying element. have. Increasing the alkali silicate concentration of the impregnating solution increases the amount of silica gel formation and adhesion, but the alkali silicate aqueous solution, which is originally highly viscous, tends to block the honeycomb structure. Therefore, the amount of silica gel that can be produced and adhered per operation is limited. For this reason, it is necessary to repeat a process several times.
따라서, 본 발명의 목적은 함침 및 산처리공정을 반복하지 않고도 제습기능을 충분히 수행하는 제습용소자의 제조방법을 제공하는 데 있다.Accordingly, it is an object of the present invention to provide a method for manufacturing a dehumidifying element that sufficiently performs a dehumidifying function without repeating the impregnation and acid treatment processes.
본 발명의 상기 목적은 미리 실리카겔로 도포된 무기섬유페이퍼를 이용함으로써 달성된다.The above object of the present invention is achieved by using inorganic fiber paper previously coated with silica gel.
본 발명의 제습용소자의 제조방법은, 무기섬유페이퍼의 표면을 실리카겔로 도포하는 공정, 상기 도포된 무기섬유페이퍼를 벌집모양구조로 제작하는 공정, 상기 벌집모양구조를 알칼리실리케이트수용액에 침지하는 공정, 상기 함침된 벌집모양구조를 산처리하는 공정 및 상기 벌집모양구조를 소성하는 공정으로 이루어진 것을 특징으로 한다.In the method of manufacturing the dehumidifying element of the present invention, a step of coating the surface of the inorganic fiber paper with silica gel, a step of producing the coated inorganic fiber paper in a honeycomb structure, a step of dipping the honeycomb structure in an alkali silicate aqueous solution , And acid-treating the impregnated honeycomb structure and firing the honeycomb structure.
본 발명에 의하면, 제습용소자로서 필요한 실리카겔의 양은 무기섬유페이퍼를 실리카겔로 도포하는 공정에 의해 확보되므로 실리카겔의 필요량의 나머지는 실리카겔제조용의 단일공정(알칼리실리케이트에 의한 함침 및 산처리공정)을 통해서 얻을 수 있다. 또, 도포된 실리카겔 및 알칼리실리케이트의 산처리에 의해 생성된 실리카겔은 일체화된 막을 형성함으로써, 제습용소자로서의 형상을 안정하게 유지할 수 있다.According to the present invention, the amount of silica gel required as a dehumidifying element is secured by a process of applying inorganic fiber paper to silica gel, so that the remainder of the required amount of silica gel is produced through a single process (impregnation with alkali silicate and acid treatment process) for silica gel production. You can get it. In addition, the silica gel produced by the acid treatment of the coated silica gel and the alkali silicate forms an integrated film, whereby the shape as a dehumidifying element can be stably maintained.
이하, 본 발명에 대해 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail.
벌집모양구조를 형성하는 무기섬유페이퍼는 특히 한정되지 않고, 유리섬유나 세라믹섬유의 페이퍼형상의 집합체등의, 이런 유형의 제습용소자에 사용되는 무기섬유페이퍼라면 어느것이든 이용할 수 있다.The inorganic fiber paper which forms a honeycomb structure is not specifically limited, Any inorganic fiber paper used for this type of dehumidification element, such as a paper-like aggregate of glass fiber or ceramic fiber, can be used.
특히, 적은 알칼리함유량을 지닌 E유리섬유나 실리카알루미나섬유로 이루어진 섬유가 실리카겔형성시의 산처리에 의해 열화에 대한 내성이나 벌집모양구조로서의 기계적 강도 혹은 내구성의 견지에서 바람직하다.In particular, a fiber composed of E glass fiber or silica alumina fiber having a low alkali content is preferable in view of resistance to degradation or mechanical strength or durability as a honeycomb structure by acid treatment during silica gel formation.
실리카겔의 무기섬유파이버에의 도포는, 예를 들면, 실리카겔, 유기에멀션(예를 들면, 폴리비닐알콜에멀션, 아크릴산에멀션 또는 염화비닐리덴에멀션) 및 물도 이루어진 도포조성물(열처리)을 이용한 스프레이코팅, 브러시코딩 또는 딥(침지)코딩에 의해 행할 수 있다. 편의상 딥코팅이 바람직하다. 이와 같이 해서 무기섬유에 유기에밀션을 개재해서 실리카겔입자가 부착된다.Application of silica gel to inorganic fiber fibers may include, for example, spray coating using a gel gel, an organic emulsion (for example, a polyvinyl alcohol emulsion, an acrylic acid emulsion or a vinylidene chloride emulsion) and a coating composition (heat treatment) which is also composed of water. This can be done by coding or dip (immersion) coding. For convenience, dip coating is preferred. In this way, silica gel particles adhere to the inorganic fibers via organic emulsification.
도포되는 실리카겔의 종류는 특히 한정되지 않고, 예를 들면, JIS Z 0701에 규정된 바와 같이 3.0%이상의 수분흡수율 또는 20%이상의 상대습도(RH)를 지닌 것을 사용할 수 있다. 도포되는 도포조성물의 양은 실리카겔로 환산해서 30∼120g/㎡가 바람직하다. 30g/㎡미만인 경우에는, 필요량의 실리카겔(소자 1ℓ당 약 100이상)을 생성하기 위하여 실리카겔생성을 위한 후속공정을 반복해야만 하고, 120g/㎡보다 많을 경우에는 무기섬유에 부착된 실리카겔이 너무 많아 막힘을 일으키는 경향이 있다.The type of silica gel to be applied is not particularly limited, and for example, those having a water absorption of 3.0% or more or a relative humidity (RH) of 20% or more can be used as specified in JIS Z 0701. The amount of the coating composition to be applied is preferably 30 to 120 g / m 2 in terms of silica gel. If it is less than 30 g / m 2, the subsequent process for producing silica gel must be repeated to produce the required amount of silica gel (about 100 or more per 1L of the device), and if it is more than 120 g / m 2, too much silica gel is attached to the inorganic fiber and clogged. Tends to cause
실리카겔생성을 위한 후속반응을 균일하게 행하여 소자전체로부터 균일한 제습작용을 얻기 위해서는, 무기섬유페이퍼상의 과잉량의 실리카겔은 제거해서 도포면을 평탄하게 하는 것이 바람직하다. 건조후, 도포된 무기섬유페이퍼는 벌집모양구조로 된다.In order to uniformly perform the subsequent reaction for producing the silica gel and to obtain a uniform dehumidifying action from the whole device, it is preferable to remove the excess silica gel on the inorganic fiber paper to flatten the coated surface. After drying, the coated inorganic fiber paper has a honeycomb structure.
벌집모양구조의 형상은 특히 한정되지 않고, 제습용소자의 종류, 용도 및 적용장소등에 따라 적절하게 선택한다.The shape of the honeycomb structure is not particularly limited, and the honeycomb structure is appropriately selected depending on the type, use and application location of the dehumidifying element.
실리카겔도포벌집모양구조를 알칼리실리케이트수용액에 침지하고 산처리하여 알칼리실리케이트를 규산겔로 변환한 후, 탈수(소성)하면 실리카겔로 된다. 규산겔입자는, 무기섬유의 표면상에 부착된 실리카겔입자에 결합시키거나, 실리카겔입자간의 공간을 채우도록 해서 형성된다.The silica gel-coated collection structure is immersed in an alkali silicate aqueous solution, acid treated to convert the alkali silicate to silicate gel, and then dehydrated (baked) to form silica gel. The silicate gel particles are formed by bonding to silica gel particles attached on the surface of the inorganic fiber or filling the space between the silica gel particles.
규산겔을 생성하는 반응은 종래의 방법으로 행할 수 있다. 알칼리실리케이트수용액의 적절한 예로서는, 규산나트륨, 규산칼륨, 규산리튬등을 10∼30중량%정도의 농도로 함유하는 수용액을 들 수 있다. 규산겔은, 알칼리실리케이트농도가 10%보다 낮은 경우 퇴적될 수 있으나, 그 퇴적량은 제습용소자를 단일공정으로 얻는다고 하는 본 발명의 목적을 달성하기에는 불충분하다. 농도가 너무 높으면, 점성용액이 제습용소자를 막히게 할 뿐만 아니라, 무기섬유를 통해 원할하게 침투하여 기존의 실리카겔입자사이의 공간을 채우는 새로운 실리카겔입자를 형성할 수 없다.The reaction for producing silicate gel can be carried out by a conventional method. As a suitable example of aqueous alkali silicate solution, an aqueous solution containing sodium silicate, potassium silicate, lithium silicate and the like at a concentration of about 10 to 30% by weight may be mentioned. The silicate gel may be deposited when the alkali silicate concentration is lower than 10%, but the deposition amount is insufficient to achieve the object of the present invention that the dehumidifying element is obtained in a single process. If the concentration is too high, the viscous solution not only clogs the dehumidifying element, but also can not penetrate smoothly through the inorganic fiber to form new silica gel particles filling the space between the existing silica gel particles.
알칼리실리케이트수용액이 무기섬유사이의 공간을 완전히 채운 후, 벌집모양구조를 상기 용액으로부터 꺼내고, 필요할 경우, 과잉의 용액은 예를 들면 공기블라스트(blast)등에 의해 제거한다.After the aqueous alkali silicate solution completely fills the space between the inorganic fibers, the honeycomb structure is taken out of the solution and, if necessary, the excess solution is removed by, for example, an air blast or the like.
함침된 벌집모양구조는 산처리하여 실리케이트를 규산겔로 변화시킨다. 사용가능한 산으로서는, 염산, 질산, 황산등을 들수 있고, 유기산도 사용가능하다. 또, 염화암모늄 또는 질산암모늄등의, 알칼리실리케이트로부터 알칼리를 용해할 수 있는 염도 사용가능하다.The impregnated honeycomb structure is acid treated to change the silicate to silicate gel. Examples of the acid that can be used include hydrochloric acid, nitric acid and sulfuric acid. Organic acids can also be used. Moreover, the salt which can melt | dissolve alkali from alkali silicate, such as ammonium chloride or ammonium nitrate, can also be used.
산처리는 함침된 벌집모양구조를 산의 수용액중에 침지함으로써 행한다. 필요할 경우, 산처리는, 함침된 벌집모양구조를 염화칼슘, 염화마그네슘 또는 질산마그네슘등의 수용성칼슘 혹은 마그네슘의 수용액중에 침지하는 공정에 의해 처리해도 된다. 상기 염용액은 실온∼70℃의 온도에서 수∼30중량%정도의 농도로 사용하는 것이 바람직하다. 이 처리에 의해, 벌집모양구조에 부착된 알칼리실리케이트만이 불용성규산칼슘 혹은 규산마그네슘으로 변화되어 무기섬유의 표면에 고착된다. 규산칼슘 혹은 규산마그네슘의 형태로 남아있는 칼슘이온이나 마그네슘이온은 대부분 다음의 산처리동안에 산수용액에 용해되므로, 제습용소자의 제습기능에 악영향을 주지 않는다.The acid treatment is performed by immersing the impregnated honeycomb structure in an aqueous solution of acid. If necessary, the acid treatment may be performed by a step of immersing the impregnated honeycomb structure in an aqueous solution of water-soluble calcium or magnesium, such as calcium chloride, magnesium chloride or magnesium nitrate. It is preferable to use the said salt solution in the density | concentration about several to 30 weight% at the temperature of room temperature-70 degreeC. By this treatment, only the alkali silicate adhered to the honeycomb structure is changed to insoluble calcium silicate or magnesium silicate and adhered to the surface of the inorganic fiber. Most of the calcium or magnesium ions remaining in the form of calcium silicate or magnesium silicate are dissolved in the acid aqueous solution during the next acid treatment, and thus do not adversely affect the dehumidifying function of the dehumidifying element.
염처리의 상세에 대해서는, 일본국 특개소 63-218235호 공보에 개시된 것을 참조하면 된다.For the details of the salt treatment, reference may be made to those disclosed in Japanese Patent Laid-Open No. 63-218235.
규산겔의 형성후, 벌집모양구조를 수세하여 부착된 염을 제거하고 열풍건조한다. 이 상태에서 도포조성물에 사용된 유기에밀션은 무기섬유에 부착된 실리카겔입자의 표면을 덮은 채로 남아있게 되고, 이러한 실리카겔입자는 낮은 제습성을 지니므로, 바람직하게는 대략 400∼500℃의 온도에서 소성을 행하여, 유기에멀션을 제거한다. 상기 소성에 의해 유기섬유나 유기바인더가, 벌집형상구조에 존재할 경우, 동시에 제거할 수 있다.After formation of the silicate gel, the honeycomb structure is washed with water to remove the attached salt and hot-air dried. In this state, the organic emulsion used in the coating composition remains to cover the surface of the silica gel particles attached to the inorganic fiber, and since these silica gel particles have low dehumidification property, preferably at a temperature of approximately 400 to 500 ° C. Firing is carried out to remove the organic emulsion. When the organic fiber or the organic binder is present in the honeycomb structure by the firing, it can be removed at the same time.
이상 설명한 바와 같이, 제습용소자는 알칼리실리케이트에 의한 함침 및 산처리를 반복함이 없이 제조할 수 있으며, 본 발명은 이러한 현저하게 간단화된 방법을 제공한다.As described above, the dehumidifying element can be manufactured without repeating impregnation and acid treatment with alkali silicate, and the present invention provides such a remarkably simplified method.
이하, 본 발명을 실시예 및 비교예를 참조해서 상세히 설명하나, 본 발명은 이것으로 한정되는 것은 아니다. 또, 기타 표시가 없는 한, 퍼센트는 모두 중량%이다.Hereinafter, although this invention is demonstrated in detail with reference to an Example and a comparative example, this invention is not limited to this. Unless otherwise indicated, all percentages are by weight.
실시예Example
기본무게 30g/㎡, 두께 0.2㎜인 E유리섬유페이퍼를 실리카겔 60g/㎡로 도포하고, 이 때의 도포는 A형 실리카겔아크릴산유기에메션 및 물로 이루어진 수성슬러리중에 E유리섬유페이퍼를 침지함으로써 행하였다. 상기 페이퍼를 끌어올리면, 과잉의 실리카겔이 벗겨졌다. 건조후, 도포된 페이퍼를 주름지게 해서 말아서 직경 400㎜, 길이 200㎜의 벌집모양회전구조로 하였다.E glass fiber paper having a basic weight of 30 g / m 2 and a thickness of 0.2 mm was coated with 60 g / m 2 of silica gel, and the application was carried out by dipping the E glass fiber paper in an aqueous slurry of an A-type silica gel acrylic acid organic emulsion and water. . When the paper was pulled up, excess silica gel was peeled off. After drying, the coated paper was crimped and rolled to form a honeycomb rotary structure having a diameter of 400 mm and a length of 200 mm.
상기 벌집모양구조를, 고체함량 28%를 지닌 #1규산나트륨수용액(SiO2/Na2O = 2.1(몰비))에 30분, 10%염화칼슘수용액에 50℃에서 30분, 5%염산수용액에 실온에서 30분 순차 침지하고, 수세한 후, 110℃에서 건조하고, 400℃에서 소성하였다.The honeycomb structure was 30 minutes in aqueous # 1 sodium silicate solution (SiO 2 / Na 2 O = 2.1 (molar ratio)) having a solid content of 28%, 30 minutes at 50 ° C. in a 10% calcium chloride solution, and 5% hydrochloric acid solution. It was immersed at room temperature for 30 minutes sequentially, and after washing with water, it dried at 110 degreeC and baked at 400 degreeC.
얻어진 제습용 소자(이하, 소자A라 칭함)의 특성을 하기 표 1에 표시하였다. 이 제습용 소자A를 재사용가능한 회전식제습기에 일체화시켜, 제습성을 측정하고, 그 결과를 하기 표 2에 표시하였다.The characteristics of the obtained dehumidifying element (hereinafter referred to as element A) are shown in Table 1 below. The dehumidifying element A was integrated with a reusable rotary dehumidifier to measure dehumidification, and the results are shown in Table 2 below.
비교예Comparative example
기본무게 30g/㎡, 두께 0.2㎜의 E유리섬유페이퍼를 주름지게해서 말아서 직경 400㎜, 길이 200㎜의 벌집모양회전구조로 하였다.E glass fiber paper having a basic weight of 30 g / m 2 and a thickness of 0.2 mm was corrugated and rolled to form a honeycomb-shaped rotating structure having a diameter of 400 mm and a length of 200 mm.
이 벌집모양구조를 고체함량 28%인 #1규산나트륨수용액(SiO2/Na2O = 2.1(몰비))에 30분간 침지하고, 배수한 후, 공기를 불어넣었다. 또, 상기 벌집모양구조를 10%염화칼슘수용액에 50℃에서 30분간, 그리고 나서 5%염산수용액에 실온에서 30분간 침지하였다. 염산욕으로부터 꺼낸 상기 구조를 수세하고, 100℃에서 건조하고 나서, 400℃에서 소성하였다.The honeycomb structure was immersed in a # 1 sodium silicate aqueous solution (SiO 2 / Na 2 O = 2.1 (molar ratio)) having a solid content of 28% for 30 minutes, drained, and then blown with air. The honeycomb structure was immersed in 10% aqueous calcium chloride solution at 50 ° C for 30 minutes, and then in 5% aqueous hydrochloric acid solution at room temperature for 30 minutes. The structure taken out from the hydrochloric acid bath was washed with water, dried at 100 ° C, and calcined at 400 ° C.
상기 규산나트륨수용액에의 침지에서부터 건조까지의 공정을 3회 반복하여 제습용소자를 얻었다(이하 소자B라 칭함).The dehumidification element was repeated three times to obtain a dehumidifying element (hereinafter referred to as element B).
얻어진 제습용 소자B의 특성을 하기 표 1에 표시하였다. 이 제습용 소자B를 재사용가능한 회전식제습기내에 일체화시키고, 제습성을 측정하고, 그 결과를 하기 표 2에 표시하였다.The characteristics of the obtained dehumidifying element B are shown in Table 1 below. The dehumidifying element B was integrated in a reusable rotary dehumidifier, the dehumidification was measured, and the results are shown in Table 2 below.
주:week:
1) 단위체적당 소자의 중량1) Weight of device per unit volume
2) 소자의 단위체적당 실리카겔중량2) Silica gel weight per unit volume of device
3) 소자의 단위중량당 소자의 표면적3) Surface area of the device per unit weight of the device
4) 각각의 상대습도하에서의 소자의 단위중량당 평형수분흡수량4) Equilibrium water absorption per unit weight of the device under each relative humidity
상기 표 1 및 표 2로부터 알 수 있는 바와 같이, 비교예의 제습용 소자B에 비해서, 본 발명에 의한 제습용 소자A는, 알칼리실리케이트용액중에의 침지후의 산처리공정을 1회만 행하였음에도 불구하고 실리카겔함유량이 많아, 우수한 제습기능을 행하였다.As can be seen from Table 1 and Table 2, in comparison with the dehumidifying element B of the comparative example, the dehumidifying element A according to the present invention, despite the acid treatment step after immersion in the alkali silicate solution only once, silica gel There was much content, and the outstanding dehumidification function was performed.
이상 설명한 바와 같이, 본 발명의 방법은, 캐리어로서 실리카겔로 도포된 무기섬유페이퍼를 이용해서 알칼리실리케이트수용액에 의한 함침 및 산처리를 행하는 것을 특징으로 한다.As described above, the method of the present invention is characterized by performing impregnation with an aqueous silicate solution and an acid treatment using inorganic fiber paper coated with silica gel as a carrier.
이상 설명한 바와 같이, 본 발명에 의한 제습용소자의 제조방법은, 무기섬유페이퍼의 표면을 실리카겔로 도포하는 공정, 상기 도포된 무기섬유페이퍼를 벌집모양구조로 제작하는 공정, 상기 벌집모양구조를 알칼리실리케이트수용액중에 침지하는 공정 및 상기 벌집모양구조를 산처리하고 소성하는 공정을 구비한다. 따라서, 본 발명에 의하면, 실리카겔생성용의 함침 및 산처리공정을 반복함이 없이 실용적인 제습기능을 지닌 제습용소자를 제조하는 것이 가능하다.As described above, the method for manufacturing the dehumidifying element according to the present invention includes the steps of applying the surface of the inorganic fiber paper with silica gel, producing the coated inorganic fiber paper into the honeycomb structure, and alkali the honeycomb structure. And a step of acid-treating and firing the honeycomb structure in the silicate aqueous solution. Therefore, according to the present invention, it is possible to manufacture a dehumidifying element having a practical dehumidifying function without repeating the impregnation and acid treatment steps for producing silica gel.
이상, 본 발명을 그의 특정예를 참조해서 상세히 설명하였다. 당업자에게 있어 본 발명의 정신과 범위로부터 벗어남이 없이 각종 변형과 수정이 가능함은 명백하다.In the above, this invention was demonstrated in detail with reference to the specific example. It will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention.
Claims (4)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP97-80985 | 1997-03-31 | ||
| JP1997-80985 | 1997-03-31 | ||
| JP08098597A JP3495874B2 (en) | 1997-03-31 | 1997-03-31 | Method of manufacturing dehumidifying element |
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| KR19980080920A true KR19980080920A (en) | 1998-11-25 |
| KR100491498B1 KR100491498B1 (en) | 2005-08-17 |
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| JP2008246438A (en) * | 2007-03-30 | 2008-10-16 | Nichias Corp | Dehumidifier and dehumidification method |
| KR101208869B1 (en) | 2009-12-23 | 2012-12-05 | (주)엘지하우시스 | Non-organic desiccant rotor with high efficiency and method of manufacturing the non-organic desiccant rotor |
| KR101322536B1 (en) * | 2010-09-07 | 2013-10-25 | (주)엘지하우시스 | Alumina desiccant rotor and method of manufacturing the alumina desiccant rotor |
| JP5686378B2 (en) * | 2011-12-07 | 2015-03-18 | 株式会社豊田自動織機 | Hydrogen-containing lithium silicate compound and method for producing the same, and positive electrode active material for non-aqueous electrolyte secondary battery, positive electrode for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery, and vehicle |
| JP6241843B2 (en) * | 2013-06-06 | 2017-12-06 | 国立研究開発法人産業技術総合研究所 | Paper honeycomb structure with silica coating and method for producing the same |
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| US2698062A (en) * | 1949-12-22 | 1954-12-28 | Grace W R & Co | Method of forming a silica gel and drying air therewith |
| US3499812A (en) * | 1966-06-30 | 1970-03-10 | Ola Glav | Method in the manufacture of an exchanger packing for two fluids |
| JPS61101228A (en) * | 1984-10-01 | 1986-05-20 | Seibu Giken:Kk | Preparation of humidity exchange element |
| JPH0649132B2 (en) * | 1987-03-05 | 1994-06-29 | ニチアス株式会社 | Dehumidifying element manufacturing method |
| KR960010898B1 (en) * | 1990-05-29 | 1996-08-13 | 가부시기가이샤 세이부 기겐 | Method for producing a gas absorptions elements |
| JP2651964B2 (en) * | 1991-07-25 | 1997-09-10 | 株式会社カワタ | Adsorbable honeycomb-shaped ceramic laminate and method for producing the same |
| US5254195A (en) * | 1992-05-08 | 1993-10-19 | Industrial Technology Research Institute | Process for manufacturing moisture exchange element |
| JP3346680B2 (en) * | 1995-05-11 | 2002-11-18 | 株式会社西部技研 | Adsorbent for moisture exchange |
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| ES2158745B1 (en) | 2002-03-16 |
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