NO341941B1 - Device for controlling flow - Google Patents
Device for controlling flow Download PDFInfo
- Publication number
- NO341941B1 NO341941B1 NO20092064A NO20092064A NO341941B1 NO 341941 B1 NO341941 B1 NO 341941B1 NO 20092064 A NO20092064 A NO 20092064A NO 20092064 A NO20092064 A NO 20092064A NO 341941 B1 NO341941 B1 NO 341941B1
- Authority
- NO
- Norway
- Prior art keywords
- controlling flow
- flow according
- coating
- ventilation
- exhaust
- Prior art date
Links
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000002114 nanocomposite Substances 0.000 claims description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000008397 galvanized steel Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Flow Control (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
En anordning for å styre strømning, i hvilken anordning i det minste deler av overflatene som kommer i kontakt med strømmende gassmedium, slik som luft, er belagt med et solgelbelegg.A device for controlling flow, in which device at least parts of the surfaces which come into contact with flowing gas medium, such as air, are coated with a sun gel coating.
Description
Oppfinnelsens område Field of the invention
Denne oppfinnelsen vedrører en anordning for å kontrollere strømning, i hvilken anordning i det minste deler av overflatene kommer i kontakt med et strømmende medium, slik som luft, og er belagt. En slik anordning er kjent fra WO 2004076570 A1. This invention relates to a device for controlling flow, in which device at least parts of the surfaces come into contact with a flowing medium, such as air, and are coated. Such a device is known from WO 2004076570 A1.
Bakgrunn for oppfinnelsen Background for the invention
Et problem med forskjellige anordninger brukt for å kontrollere strømning, slik som luftstrøm, når det gjelder ventilasjonskanaler, avtrekksluftanordninger (slik som f.eks. avtrekksluftventil eller en avtrekksmanifold eller en annen avtrekksluftanordning) er skitt som akkumulerer seg på deres overflater, fordi overflatene ikke er beskyttet effektivt nok mot skitt. Akkumuleringen av skitt på overflatene svekker anvendeligheten til anordningene og nødvendiggjør rensing av skitten, hvilket forårsaker ekstra arbeid og kostnader. A problem with various devices used to control flow, such as airflow, in the case of ventilation ducts, exhaust air devices (such as an exhaust air valve or an exhaust manifold or another exhaust air device) is dirt that accumulates on their surfaces, because the surfaces are not protected effectively enough against dirt. The accumulation of dirt on the surfaces impairs the usability of the devices and necessitates the cleaning of the dirt, which causes additional work and costs.
Hensikten med oppfinnelsen er derved å tilveiebringe en anordning for å kontrollere luft, hvilken anordning ikke blir skitten så enkelt som kjente anordninger brukt for å kontrollere luftstrøm. På samme tid er målet å tilveiebringe en enkelt rensbar anordning brukt for å kontrollere luftstrøm. The purpose of the invention is thereby to provide a device for controlling air, which device does not get dirty as easily as known devices used to control air flow. At the same time, the aim is to provide a single cleanable device used to control airflow.
Beskrivelse av oppfinnelsen Description of the invention
Oppfinnelsen er karakterisert ved det som angitt i den karakteriserende delen i krav 1. The invention is characterized by what is stated in the characterizing part of claim 1.
Oppfinnelsen er også karakterisert ved det som er angitt i de vedlagte kravene 2-7. The invention is also characterized by what is stated in the attached claims 2-7.
I henhold til den oppfinneriske ideen er i det minste deler av overflatene i anordningen som kommer i kontakt med det strømmende gassmediet, slik som luft, dekket med et solgelbelegg. According to the inventive idea, at least parts of the surfaces of the device that come into contact with the flowing gas medium, such as air, are covered with a solar gel coating.
Ved hjelp av solgelteknikken er det mulig å fremstille av flytende startmaterialer som anvender kjemiske reaksjoner, enten et fullstendig eller delvis uorganisk fast nettverk ved betydelig lavere temperaturer enn alminnelige keramiske beleggteknologier. Som navnet på teknikken avslører, inkluderer det å danne et uorganisk nettverk ved hjelp av gelering av kolloidalsuspensjon (sol). Ved hjelp av tørking og herding av geleen er det videre mulig å danne et kontinuerlig fast nettverk, som kan f.eks. være et gelebelegg. Belegg produsert ved denne teknikken er tynne, typisk fra hundredels nanometer til titalls mikrometer. With the help of the sol gel technique, it is possible to produce from liquid starting materials that use chemical reactions, either a complete or partially inorganic solid network at significantly lower temperatures than ordinary ceramic coating technologies. As the name of the technique reveals, it involves forming an inorganic network by gelation of colloidal suspension (sol). By means of drying and hardening of the gel, it is further possible to form a continuous fixed network, which can e.g. be a gel coating. Coatings produced by this technique are thin, typically from hundredths of a nanometer to tens of micrometers.
Ved hjelp av solgelkjemien er det også mulig å fremstille uorganiske-organiske (dvs. keramiske-polymer) komposittmaterialer. Med disse nanoskala komposittmaterialene er det mulig å fremstille transparente, tynne belegg i hvilke det er mulig å kombinere typiske egenskaper av forskjellige materialgrupper i en molekylærskala. Ved hjelp av disse beleggene, ved å justere materialegenskapene, er det mulig å påvirke blant annet skittmotstand, rensbarhet, selvrensning, slitasjemotstand og andre beskyttende egenskaper ved overflatene. De justerbare overflateegenskapene er blant annet overflateenergi, topografi, overflatehardhet og beleggtetthet. Solgelbelegg baseres ofte på silanbaserte arrangementer, men beleggene kan også fremstilles ved å anvende andre alkoksider av metaller. Using sol gel chemistry, it is also possible to produce inorganic-organic (ie ceramic-polymer) composite materials. With these nanoscale composite materials, it is possible to produce transparent, thin coatings in which it is possible to combine typical properties of different material groups on a molecular scale. With the help of these coatings, by adjusting the material properties, it is possible to influence, among other things, dirt resistance, cleanability, self-cleaning, wear resistance and other protective properties of the surfaces. The adjustable surface properties include surface energy, topography, surface hardness and coating density. Solgel coatings are often based on silane-based arrangements, but the coatings can also be produced by using other alkoxides of metals.
Som en fordel sammenlignet med tidligere organiske (f.eks. fluoropolymerbaserte) lavoverflateenergibelegg, er det med belegg produsert ved solgelteknikken blant annet mulig å oppnå bedre vedheft av belegget til basematerialet, noe som, kombinert med økningen i overflatehardhet tilveiebrakt ved uorganiske seksjoner, fører til sluttprodukter med bedre slitasjemotstand. En fordel med solgelteknikken er også at det flytende belegget kan påføres med forskjellige våtbeleggmetoder, hvilket for sin del forbedrer teknikken og den økonomiske anvendeligheten ved disse beleggene. As an advantage compared to previous organic (e.g. fluoropolymer-based) low surface energy coatings, with coatings produced by the sol gel technique it is possible, among other things, to achieve better adhesion of the coating to the base material, which, combined with the increase in surface hardness provided by inorganic sections, leads to end products with better wear resistance. An advantage of the solar gel technique is also that the liquid coating can be applied with different wet coating methods, which in turn improves the technique and economic applicability of these coatings.
I henhold til oppfinnen er det mulig å belegge med solgelbelegg i det minste følgende anordninger (eller deler av apparater) brukt for å styre luft: According to the invention, it is possible to coat with solar gel coating at least the following devices (or parts of devices) used to control air:
- en ventilasjonskanal (innløps- og utløpskanal), slik som et ventilasjonsrør - en avtrekksluftanordning (f.eks. en avtrekksluftventil eller et avtrekksanlegg eller annen avtrekksluftanordning) - a ventilation duct (inlet and outlet duct), such as a ventilation pipe - an exhaust air device (e.g. an exhaust air valve or an exhaust system or other exhaust air device)
- en avtrekksluftventilator, spesielt en avtrekksvifte forbundet med en avtrekksmanifold - an exhaust air ventilator, in particular an exhaust fan connected to an exhaust manifold
- en innløpsluftventil. - an inlet air valve.
I ventilasjonskanalen dannes belegget på den indre overflaten av sjakten. In the ventilation channel, the coating is formed on the inner surface of the shaft.
I avtrekksluftanordningen forhindrer den skittavstøtende overflaten skitt som kommer ut av rommet med luften fra å hefte på overflaten av avtrekksluftanordningen, hvorved produktet forblir renere, ikke vil se estetisk uattraktivt ut, dens tekniske egenskaper forblir uendret, og det krever mindre hyppig rensing. I avtrekksluftventilatoren vil de skittavstøtende beleggene forhindrer skitt eller fett fra å feste på løpehjulet og huset til avtrekksluftventilatoren, hvorved tekniske spesifikasjoner holdes, produktet drives med god effektivitet i hele dets livssyklus, det er ingen balanseproblemer som sliter på lagrene i løpehjulet, og det krever mindre hyppig rensing. In the exhaust air device, the dirt-repellent surface prevents dirt coming out of the room with the air from adhering to the surface of the exhaust air device, whereby the product remains cleaner, will not look aesthetically unattractive, its technical characteristics remain unchanged, and it requires less frequent cleaning. In the exhaust fan, the dirt-repellent coatings will prevent dirt or grease from sticking to the impeller and housing of the exhaust fan, thus maintaining technical specifications, the product is operated with good efficiency throughout its life cycle, there are no balance problems that wear on the bearings in the impeller, and it requires less frequent cleaning.
I innløpsluftventilen forhindrer det skittavstøtende belegget skitten luft innført fra rommet fra å feste på overflatene. In the inlet air valve, the dirt-repellent coating prevents dirty air introduced from the room from sticking to the surfaces.
Belegget er formet i de ovennevnte anordningene og deres deler ved sprøyting, rulling eller kosting. The coating is formed in the above devices and their parts by spraying, rolling or brushing.
Det er åpenbart for de med kjennskap til teknikken at oppfinnelsen ikke er begrenset til utførelsene beskrevet over, men kan varieres innen omfanget av de vedlagte krav. It is obvious to those with knowledge of the technique that the invention is not limited to the embodiments described above, but can be varied within the scope of the attached claims.
Solgelbelegget brukt i oppfinnelsen kan også være et hybridbelegg eller et nanokompositt-hybridbelegg. The solar gel coating used in the invention can also be a hybrid coating or a nanocomposite hybrid coating.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20060966A FI123183B (en) | 2006-11-03 | 2006-11-03 | Device for controlling a current |
| PCT/FI2007/000249 WO2008053067A1 (en) | 2006-11-03 | 2007-10-16 | Device for controlling flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20092064L NO20092064L (en) | 2009-05-27 |
| NO341941B1 true NO341941B1 (en) | 2018-02-26 |
Family
ID=37482425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20092064A NO341941B1 (en) | 2006-11-03 | 2009-05-27 | Device for controlling flow |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090291629A1 (en) |
| EP (1) | EP2078176A4 (en) |
| FI (1) | FI123183B (en) |
| NO (1) | NO341941B1 (en) |
| WO (1) | WO2008053067A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1076597A (en) * | 1996-09-04 | 1998-03-24 | Hitachi Ltd | Highly functionable photo-catalyst film |
| JP2001192070A (en) * | 2000-01-07 | 2001-07-17 | Haruhiko Watanabe | Package having gas-barrier layer |
| WO2004076570A1 (en) * | 2003-02-28 | 2004-09-10 | Koninklijke Philips Electronics N.V. | Fluoropolymer-containing sol-gel coating |
| KR20050041034A (en) * | 2003-10-29 | 2005-05-04 | 한국화학연구원 | The methods for preparing an aqueous organic/inorganic nanohybrid sol-gel coating agents |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3358577A (en) * | 1965-08-16 | 1967-12-19 | Krueger Mfg Company | Air diffusing register |
| US3568722A (en) * | 1968-09-17 | 1971-03-09 | Ppg Industries Inc | Longitudinally reinforced flexible duct |
| US3589265A (en) * | 1969-06-23 | 1971-06-29 | Allied Thermal Corp | Floor register |
| US5749190A (en) * | 1994-12-19 | 1998-05-12 | Williams; Steven Ray | HVAC register box |
| US6159421A (en) * | 1995-10-17 | 2000-12-12 | Ebara Corporation | Method of cleaning gases |
| US5807171A (en) * | 1996-06-17 | 1998-09-15 | E.H. Price Limited | Air diffuser apparatus |
| US6005028A (en) * | 1996-08-12 | 1999-12-21 | Southwest Research Institute | Organic-inorganic hybrid composites for dental restorative material |
| JP2000233131A (en) * | 1998-12-16 | 2000-08-29 | Daikin Ind Ltd | Adsorbent, humidity adjuster provided with the adsorbent, adsorption refrigerator, adsorption air conditioner and adsorption heat transformer |
| WO2002055986A2 (en) * | 2000-10-23 | 2002-07-18 | Univ South Florida | Sample preconcentration tubes with sol-gel surface coatings and/or sol-gel monolithic beds |
| DE10105073A1 (en) * | 2001-02-05 | 2002-08-08 | Basf Ag | Use of aqueous compositions for coating metal components |
| SG92820A1 (en) * | 2001-02-17 | 2002-11-19 | Gintic Inst Of Mfg Technology | Domestic appliance and method of manufacturing thereof |
| FI117681B (en) * | 2001-02-19 | 2007-01-15 | Lifa Iaq Ltd Oy | Filtration system and method for ventilation systems |
| US20020123592A1 (en) * | 2001-03-02 | 2002-09-05 | Zenastra Photonics Inc. | Organic-inorganic hybrids surface adhesion promoter |
| US6841601B2 (en) * | 2001-03-13 | 2005-01-11 | Dais-Analytic Corporation | Crosslinked polymer electrolyte membranes for heat and moisture exchange devices |
| DE10157550C2 (en) * | 2001-11-23 | 2003-09-18 | Klingenburg Gmbh | Sorption |
| AU2003247114A1 (en) * | 2002-07-30 | 2004-02-23 | Koninklijke Philips Electronics N.V. | Utensil and use of a sol gel coating on such a utensil |
| US6991219B2 (en) * | 2003-01-07 | 2006-01-31 | Ionbond, Llc | Article having a hard lubricious coating |
| JP4423977B2 (en) * | 2003-01-31 | 2010-03-03 | アイシン精機株式会社 | Compressor device for vehicle |
| US20030138661A1 (en) * | 2003-02-19 | 2003-07-24 | Ferro Corporation | Sol-gel composition and method of making same |
| US20050183642A1 (en) * | 2003-06-12 | 2005-08-25 | Basic John N.Sr. | Temperature-controlled incinerator dryer grates |
| US7332001B2 (en) * | 2003-10-02 | 2008-02-19 | Afton Chemical Corporation | Method of enhancing the operation of diesel fuel combustion systems |
| ES2243119B1 (en) * | 2003-11-03 | 2007-02-16 | Saint-Gobain Cristaleria, S.A. | BEADED BY PANEL COATING FOR CONSTRUCTION OF AIR CONDITIONING PIPES. |
| US8394469B2 (en) * | 2004-07-14 | 2013-03-12 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust pipe for internal combustion engine |
| US7951310B2 (en) * | 2006-03-28 | 2011-05-31 | East China University Of Science And Technology | Nanophase carbon black grafted with organic compound in situ |
-
2006
- 2006-11-03 FI FI20060966A patent/FI123183B/en active IP Right Grant
-
2007
- 2007-10-16 WO PCT/FI2007/000249 patent/WO2008053067A1/en active Application Filing
- 2007-10-16 US US12/444,031 patent/US20090291629A1/en not_active Abandoned
- 2007-10-16 EP EP07823109A patent/EP2078176A4/en not_active Withdrawn
-
2009
- 2009-05-27 NO NO20092064A patent/NO341941B1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1076597A (en) * | 1996-09-04 | 1998-03-24 | Hitachi Ltd | Highly functionable photo-catalyst film |
| JP2001192070A (en) * | 2000-01-07 | 2001-07-17 | Haruhiko Watanabe | Package having gas-barrier layer |
| WO2004076570A1 (en) * | 2003-02-28 | 2004-09-10 | Koninklijke Philips Electronics N.V. | Fluoropolymer-containing sol-gel coating |
| KR20050041034A (en) * | 2003-10-29 | 2005-05-04 | 한국화학연구원 | The methods for preparing an aqueous organic/inorganic nanohybrid sol-gel coating agents |
Also Published As
| Publication number | Publication date |
|---|---|
| NO20092064L (en) | 2009-05-27 |
| WO2008053067A1 (en) | 2008-05-08 |
| US20090291629A1 (en) | 2009-11-26 |
| FI20060966A (en) | 2008-05-04 |
| FI20060966A0 (en) | 2006-11-03 |
| FI123183B (en) | 2012-12-14 |
| EP2078176A4 (en) | 2012-11-07 |
| EP2078176A1 (en) | 2009-07-15 |
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