{"id":11402,"date":"2021-06-29T05:57:18","date_gmt":"2021-06-29T05:57:18","guid":{"rendered":"https:\/\/duct.harsle.com\/?p=11402"},"modified":"2024-03-04T08:30:16","modified_gmt":"2024-03-04T08:30:16","slug":"what-is-the-ventilation-duct","status":"publish","type":"post","link":"https:\/\/duct.harsle.com\/de\/what-is-the-ventilation-duct\/","title":{"rendered":"Was ist der L\u00fcftungskanal?"},"content":{"rendered":"

What Is The Ventilation Duct What is the common L\u00fcftungskanal<\/a> in der L\u00fcftungs- und Klimaanlage? Was sind ihre Alleinstellungsmerkmale? \u00dcber das Problem des Rohrleitungsmaterials wird dieser Artikel im Detail erl\u00e4utert, und als n\u00e4chstes werden wir den Kunden erz\u00e4hlen wie w\u00e4hlt man Luftkanalmaschinen aus.<\/a><\/p>\n\n\n\n

Was ist der L\u00fcftungskanal?<\/strong><\/h3>\n\n\n\n
Vorteile des Luftkanals aus Eisenblech<\/strong><\/h5>\n\n\n\n

1. It has high strength and can withstand the wind pressure of 3000pa, which can meet the use of a high, medium, and low-pressure air system. What Is The Ventilation Duct<\/p>\n\n\n\n

2. It can be processed on-site, with low transportation cost and convenient adjustment, without affecting the construction period. What Is The Ventilation Duct<\/p>\n\n\n\n

\"Luftkanal
<\/figcaption><\/figure>\n\n\n\n
M\u00e4ngel des Luftkanals aus Eisenblech<\/strong><\/h5>\n\n\n\n

1.\u00a0It is easy to rust and has a short service life, which is not conducive to improving the indoor air quality. In a humid environment, the service life is only 5-7 years, and after 4-5 years, the inside of the air duct is full of rust. What Is The Ventilation Duct<\/p>\n\n\n\n

2.\u00a0High air leakage rate and high energy consumption. The iron sheet air duct is connected by bite and flange, and its air leakage rate is about 10% (permitted by national standards). What Is The Ventilation Duct<\/p>\n\n\n\n

3.\u00a0The ventilation is noisy. The thin wall of the iron sheet duct will produce noise under the action of wind speed and pressure. What Is The Ventilation Duct<\/p>\n\n\n\n

4.\u00a0Large weight increases the load of the building. The weight of iron sheet air duct is more than 10kg per square meter. What Is The Ventilation Duct<\/p>\n\n\n\n

5.\u00a0High thermal conductivity. The iron sheet air duct adopts external insulation, which increases the project cost and affects the construction period. If the external insulation is not in place or damaged, it will produce a cold bridge. Condensate damage to the ceiling will damage the following objects. What Is The Ventilation Duct<\/p>\n\n\n\n

6. Der Produktions- und Installationszyklus ist lang. Der Luftkanal aus Eisenblech sollte mit gro\u00dfen Maschinen mit Hinterschnitt und Flansch gebaut werden, und die Geschwindigkeit ist gering.<\/p>\n\n\n\n

7.\u00a0High maintenance costs. The iron sheet air duct should be maintained and treated with rust prevention. What Is The Ventilation Duct<\/p>\n\n\n\n

8) It’s not beautiful. The iron sheet air duct is not smooth and beautiful after external insulation. What Is The Ventilation Duct<\/p>\n\n\n\n

9.\u00a0Occupy the ceiling space. The iron sheet air duct, together with the height of the flange and the thickness of the insulation material, occupies a large ceiling space (generally 40-60 mm). What Is The Ventilation Duct<\/p>\n\n\n\n

Glasfaserkanal aus Aluminiumfolienverbund<\/strong><\/h3>\n\n\n\n

Aluminum foil composite glass fiber duct is made directly from the heat preservation material of iron sheet air pipe – superfine glass wool. In 1992, super air duct (glass fiber duct) entered the domestic market. Although it has been operated for more than ten years, the market share is still quite small, even the share is shrinking. What Is The Ventilation Duct<\/p>\n\n\n\n

\"Glasfaserkanal
<\/figcaption><\/figure>\n\n\n\n
Vorteile von Aluminiumfolienverbundglasfaserrohren<\/strong><\/h5>\n\n\n\n
    \n
  1. Schallabsorption. Da es direkt aus superfeiner Glaswolle besteht, ist das Material relativ locker und hat eine gute Schallabsorptionsleistung.<\/li>\n\n\n\n
  2. Lightweight. It weighs about 3 kg per square meter. What Is The Ventilation Duct<\/li>\n<\/ol>\n\n\n\n
    Defekte von Aluminiumfolienverbundglasfaserrohren<\/strong><\/h5>\n\n\n\n

    1.\u00a0The strength is poor. Due to the direct use of ultra-fine glass wool production, poor pressure bearing capacity can only be used in low-pressure, small ducts. Finished product protection requirements are high, easy to be broken by the later hydropower and decoration projects. It can’t be cleaned. What Is The Ventilation Duct<\/p>\n\n\n\n

    2.\u00a0I’m afraid of dampness. Ultrafine glass wool has high water absorption. If the surface is not sealed properly, especially after slotting, it will absorb a lot of water and reduce the heat preservation performance and strength. What Is The Ventilation Duct<\/p>\n\n\n\n

    3.\u00a0The fiber is easy to disperse. If the surface of superfine glass wool is not sealed in place, especially after slotting, it will lead to fiber dispersion and affect human health. What Is The Ventilation Duct<\/p>\n\n\n\n

    4.\u00a0Large wind resistance. The absolute surface roughness is 0.9-1.1 mm. Generally, the unit power is required to be increased by 10% to increase energy consumption. What Is The Ventilation Duct<\/p>\n\n\n\n

    Aluminiumfolien-Polyurethan-Kanal<\/strong><\/h3>\n\n\n\n

    Aluminum foil polyurethane air duct is a kind of air duct made of polyurethane in the middle and composite aluminum foil on both sides. One of the main characteristics of aluminum foil polyurethane air duct is lightweight, but its biggest deficiency is that the fire performance can not meet the national requirements. The national “code for fire protection of high rise buildings” and “code for fire protection of civil buildings” both stipulate that the ventilation duct materials must be made of class non-combustible materials. Aluminum foil polyurethane air duct can only reach B 1 level at the highest, and its accessories and glue are organic materials, and can only reach B 1 level at the highest, which is not in line with national standards. The poor strength and pressure bearing capacity of the aluminum foil polyurethane air duct are also its major shortcomings. What Is The Ventilation Duct<\/p>\n\n\n\n

    \"Aluminiumfolien-Polyurethan-Kanal\"
    <\/figcaption><\/figure>\n\n\n\n

    Phenolrohr aus Aluminiumfolienverbund<\/strong><\/h3>\n\n\n\n

    Phenolic duct is made of phenolic as thermal insulation material and composite aluminum foil on both sides. What Is The Ventilation Duct<\/p>\n\n\n\n

    The phenolic duct has the advantages of lightweight and obvious disadvantages, such as poor strength, easy pulverization, easy delamination of aluminum foil and phenolic, a large number of strong acids used in the foaming process, organic glue containing formaldehyde, which is not environmentally friendly. What Is The Ventilation Duct<\/p>\n\n\n\n

    \"Phenolrohr
    <\/figcaption><\/figure>\n\n\n\n

    Farbe Stahlblech-Luftkanal<\/strong><\/h3>\n\n\n\n

    The color steel plate air duct is divided into single-sided color steel and double-sided color steel. The single-sided color steel is to move the original superfine glass wool from the outside to the inside, that is, a layer of color steel from the outside and a layer of superfine glass wool from the inside. The double-sided color steel is to make a layer of iron sheet protection outside the insulation cotton of the iron sheet air duct. There is no great innovation compared with the iron sheet air duct in technology, but it is actually the iron sheet air duct. The improvement point is that PVC insert is used to replace the bite and flange, and the thermal insulation cotton and color steel plate are formed at one time without secondary thermal insulation. What Is The Ventilation Duct<\/p>\n\n\n\n

    \"Farbe
    <\/figcaption><\/figure>\n\n\n\n
    Vorteile des doppelseitigen Farbplattenluftkanals<\/strong><\/h5>\n\n\n\n

    1. Die Luftdichtheit wird verbessert. Da PVC-Eins\u00e4tze als Ersatz f\u00fcr Biss und Flansch verwendet werden, wird die Luftleckagerate des Luftkanals aus Eisenblech reduziert.<\/p>\n\n\n\n

    2. There is no need for secondary insulation, which improves the construction efficiency. What Is The Ventilation Duct<\/p>\n\n\n\n

    3. The color steel plate air duct improves the service life. What Is The Ventilation Duct<\/p>\n\n\n\n

    M\u00e4ngel des doppelseitigen Farbblech-Luftkanals<\/strong><\/h5>\n\n\n\n

    1. The use of PVC inserts instead of bite and flange makes the iron sheet air duct nondescript. It not only reduces the fire resistance and fire resistance of the air duct (PVC inserts can only reach B1 level) but also makes the advantages of good toughness of the iron sheet completely lost. In order to improve the tightness, it is more reasonable to think about the construction quality or plugging of the iron sheet air duct. What Is The Ventilation Duct<\/p>\n\n\n\n

    2. Glass wool is easy to disperse inside, which affects human health. Both single side and double side color steel plates need to be slotted to make an air duct. The sealing after slotting is a big problem, and it is difficult to seal in place. What Is The Ventilation Duct<\/p>\n\n\n\n

    3. The air duct is not easy to clean. The interior of one side is glass wool, which is not easy to clean. The interior of two sides is color steel plate. Under the action of cleaning brush, the paint layer will be damaged, which will affect the service life. What Is The Ventilation Duct<\/p>\n\n\n\n

    4. Compared with the iron sheet air duct, the strength is greatly reduced. The thickness of the color steel plate is only 0.3mm, which is 0.2mm less than the thinnest 0.5mm of the iron sheet air duct. The air duct needs to be reinforced, and the spacing between supports needs to be reduced, which increases the cost. What Is The Ventilation Duct<\/p>\n\n\n\n

    5. The finished air duct leaves the factory, which makes the iron sheet air duct easy to make and adjust on site. What Is The Ventilation Duct<\/p>\n\n\n\n

    6. PVC flange strength is not high, no metal bite and flange strength is high, is a weak point of strength. What Is The Ventilation Duct<\/p>\n\n\n\n

    Glas-Magnesium-Kanal<\/strong><\/h3>\n\n\n\n
    \"Glas-Magnesium-Kanal\"
    <\/figcaption><\/figure>\n\n\n\n
      \n
    • Glass magnesium air duct saves energy and reduces the operating cost of the system (energy saving air duct). The energy saving effect of glass magnesium air duct is quite obvious, which is more than 10% more than that of iron sheet air duct. For air duct, the main indexes to distinguish the performance of air duct are the resistance along the way, air leakage rate and insulation performance. The smaller the resistance, the lower the air leakage rate and the better the insulation performance, the better the performance of the air duct is. Glass magnesium air duct has excellent performance in these aspects: What Is The Ventilation Duct<\/li>\n<\/ul>\n\n\n\n
        \n
      1. Gute Isolierleistung, reduziert den Energieverbrauch der W\u00e4rmeleitung. Glas-Magnesium-Luftkanal direkt aus Verbundd\u00e4mmstoffen, keine Sekund\u00e4risolierung erforderlich, die W\u00e4rmeleitf\u00e4higkeit des Luftkanals ist gering, hervorragende D\u00e4mmleistung, reduziert den W\u00e4rmeleitungsverlust bei der \u00dcbertragung von kalter und hei\u00dfer Luft im Einklang mit dem nationalen "Code". zur energiesparenden Gestaltung \u00f6ffentlicher Geb\u00e4ude\u201c. Gleichzeitig hat das Glas-Magnesium-Luftrohr die Au\u00dfenisolierung des Eisenblech-Luftrohres verbessert und es in eine Innenisolierung umgewandelt, wodurch das Isoliermaterial durch eine anorganische Schicht gesch\u00fctzt wird und die Besch\u00e4digung der Isoliermaterialien oder anderer Schadstoffe in . vermeidet den Bau anderer Arten von Arbeiten, um die D\u00e4mmwirkung stabil und langfristig zu gestalten.<\/li>\n\n\n\n
      2. The air leakage rate is low, and the air delivery efficiency is improved. Glass magnesium air pipe is made of adhesive structure, without flange connection, which greatly improves the airtightness of air pipe. Compared with iron sheet air pipe, it reduces air leakage of bite and flange, reduces air leakage rate of the air pipe, and improves air transmission efficiency. The air leakage rate of the glass magnesium air pipe is only 1\/10 of the iron sheet air pipe. What Is The Ventilation Duct<\/li>\n\n\n\n
      3. The glass magnesium air duct plate is manufactured mechanically with a smooth and flat surface, small friction coefficient, and low wind resistance, and the absolute roughness of the air duct surface is less than 0.2 mm. What Is The Ventilation Duct<\/li>\n<\/ol>\n\n\n\n
          \n
        • Glass magnesium duct can bring clean air (environmental protection duct) and improve indoor quality (IAQ). Glass magnesium duct can improve indoor air quality without rust, mildew, dust, bacteria, and fungi, dust and fiber, odor, granular and gaseous pollutants, and biological aerogel. What Is The Ventilation Duct<\/li>\n\n\n\n
        • Der Glas-Magnesium-Luftkanal hat eine gute Schalld\u00e4mmungsleistung mit einer durchschnittlichen Schalld\u00e4mmung von 21 dB. In der Zwischenzeit hat das D\u00e4mmmaterial die Funktion der Schwingungsd\u00e4mpfung und Schalld\u00e4mpfung, die den durch Luftvibrationen und Maschinen erzeugten L\u00e4rm isolieren und reduzieren, den durch Kontraktion und Ausdehnung des Luftkanals aus Eisenblech verursachten L\u00e4rm beseitigen und die Innenumgebung ruhig halten k\u00f6nnen.<\/li>\n<\/ul>\n\n\n\n
          \"Luftkanal\"
          <\/figcaption><\/figure>\n\n\n\n
            \n
          • Hochwertige und leistungsstarke Produkte aus Glasmagnesiumrohr<\/li>\n<\/ul>\n\n\n\n
              \n
            1. Hervorragende Feuerleistung. Glas-Magnesium-Kanal wird aus nicht brennbaren anorganischen Materialien und W\u00e4rmed\u00e4mmstoffen durch High-Tech-Verfahren hergestellt. Es handelt sich um eine Klasse von nicht brennbarem Material, die von der nationalen Qualit\u00e4ts\u00fcberwachungs- und Inspektionsstelle f\u00fcr Brandschutzbaustoffe (zusammengesetzte Gesamtklasse A) getestet wurde.<\/li>\n\n\n\n
            2. Super hochfeste Leistung. Glas-Magnesium-Kanal hat eine hohe Festigkeit, eine Tragf\u00e4higkeit von mehr als 1000 N, kann einem Winddruck von 3000 Pa standhalten und kann die Verwendung eines Hoch-, Mittel- und Niederdruckluftsystems erf\u00fcllen. Eine hohe Festigkeit reduziert auch die Anforderungen an den Schutz des Fertigprodukts im Bauprozess, sodass das Produkt nicht leicht besch\u00e4digt werden kann.<\/li>\n\n\n\n
            3. Excellent moisture-proof and water-resistant performance. Glass magnesium duct is not afraid of water and does not rust and corrode in a humid environment. Even if immersed in water, it can still maintain high strength, with wet strength as high as 80%. What Is The Ventilation Duct<\/li>\n\n\n\n
            4. Es kann den Nettoraum der Decke effektiv verbessern. Der Glasmagnesiumkanal verwendet den Nicht-Flansch-Verbindungsprozess, der die H\u00f6he des Flansches spart und den Innennettoraum verbessern kann.<\/li>\n\n\n\n
            5. The weight of the glass magnesium duct is 7 kg per square meter, which is 30% lighter than that of the iron sheet duct. It can effectively reduce the building load. What Is The Ventilation Duct<\/li>\n\n\n\n
            6. Sch\u00f6nes Aussehen. Glas-Magnesium-Luftkanal ist durch Flansch verbunden, mit flachem Boden und sch\u00f6nem Aussehen. Die Au\u00dfenwand kann mit jeder Farbe gestrichen werden, um die Sekund\u00e4rdekoration zu erleichtern.<\/li>\n\n\n\n
            7. No cold bridge, more energy-saving. Glass magnesium duct adopts no cold bridge construction technology, there is no cold bridge node, more energy-saving. What Is The Ventilation Duct<\/li>\n\n\n\n
            8. Montage und Installation vor Ort, hohe Konstruktionseffizienz, Zeit sparen. Glas-Magnesium-Kanal \u00fcbernimmt die Montage- und Installationstechnologie vor Ort, ben\u00f6tigt keine gro\u00dfen Maschinen und Ger\u00e4te, die Anpassung vor Ort ist schnell, eine hohe Effizienz kann Zeit sparen.<\/li>\n<\/ol>\n\n\n\n
                \n
              • Das Gewicht von Glas-Magnesium-Kan\u00e4len ist geringer als das von anderen Verbundrohren.<\/li>\n<\/ul>\n\n\n\n
                \"Spiral-Luftkanal\"
                <\/figcaption><\/figure>\n\n\n\n

                Neben den oben genannten L\u00fcftungskan\u00e4len werden auch die folgenden L\u00fcftungskan\u00e4le h\u00e4ufig in HLK-Systemen verwendet:<\/p>\n\n\n\n

                  \n
                • Materialien und Typen von L\u00fcftungsrohren, die in der HLK-Technik verwendet werden<\/li>\n<\/ul>\n\n\n\n
                    \n
                  1. Galvanized iron sheet air duct. This is a kind of ventilation pipe which is used earlier and still used at present. It is made of galvanized iron sheet and is suitable for gas transmission with small moisture content. However, due to its early appearance, there are many imperfections, such as ease to rust, poor anti-corrosion ability, lack of noise attenuation and heat preservation function, so it is necessary to set up an additional muffler and heat preservation protective layer, As a result, the production cycle is long, and the installation is inconvenient, there will still be large noise when using, and the service life is short. What Is The Ventilation Duct<\/li>\n\n\n\n
                  2. FRP air duct. Glass fiber reinforced plastic air duct is a kind of ventilation duct made of relatively new magnesium oxychloride material, which is strengthened by glass fiber cloth. It is made after hydration reaction and curing. This kind of pipe has the characteristics of fire resistance, corrosion resistance, high hardness but heavyweight, and also does not have the function of noise elimination and heat preservation. It needs to add a muffler and heat preservation protective layer to ensure the better operation of the HVAC system. Therefore, more time and energy are needed in the production and installation, and it is not easy to change and modify once the design is completed, It brings some trouble to the user process. What Is The Ventilation Duct<\/li>\n\n\n\n
                  3. Composite fiberglass duct. Composite fiberglass duct, also known as the new super duct, is a new type of ventilation duct with scientific and technological content with the continuous progress of science and technology in recent years. Centrifugal fiberglass board is used as the main material, and anti-moisture aluminum foil cloth is set outside the pipe, glass fiber cloth is used inside, and glue spraying is carried out. The composite fiberglass duct is light in the material, small in volume, easy to install, space-saving, easy to modify, fire-resistant and moisture resistant, and can eliminate noise, heat preservation, reduce air leakage, easy to use, long life, high cost performance, which has good application advantages in the current ventilation duct. What Is The Ventilation Duct<\/li>\n<\/ol>\n\n\n\n
                    \"rechteckiger
                    <\/figcaption><\/figure>\n\n\n\n
                      \n
                    • Anwendungsleistung des L\u00fcftungskanals<\/li>\n<\/ul>\n\n\n\n
                        \n
                      1. W\u00e4rmed\u00e4mmleistung<\/li>\n<\/ol>\n\n\n\n

                        The wall of the super air duct is a centrifugal fiberglass board with low thermal conductivity (0.029 w \/ m \/ k at 24 \u2103 and 0.04 w \/ m \/ k at 70 \u2103). In particular, the outer composite aluminum foil has a high heat reflection ability, and its strength and toughness are much better than aluminum foil, so it is not easy to break. Because the air duct wall is the insulation layer, the pipe adopts a tenon joint, T-shaped inner frame butt joint, and iron sheet plug joint (or outer flange connection), so that all parts of the air duct are evenly insulated without cold bridge phenomenon, and has good thermal insulation performance. However, the galvanized iron sheet air duct and the inorganic glass fiber reinforced plastic air duct have no heat preservation performance, so the heat preservation layer and the heat preservation protective layer should be added. What Is The Ventilation Duct<\/p>\n\n\n\n

                        2. Brandverhalten<\/p>\n\n\n\n

                        Super air duct is based on non-combustible glass fiber cotton board, using self-made flame retardant adhesive (national patent), aluminum foil cloth, and glass fiber cloth are compounded on both sides of the substrate. Therefore, the finished duct belongs to non-combustible material, which conforms to grade A of GB8624-1997 “classification method for flammability of building materials”, and has good fire performance. The galvanized iron sheet air duct and inorganic glass fiber reinforced plastic air duct are non-combustible materials, but whether their thermal insulation materials burn depends on the material. Originally, polystyrene board was used as an interlayer, because it would produce toxic gas under the effect of an external fire source, so it was gradually eliminated. At present, non-combustible insulation materials such as centrifugal glass wool are usually used as the interlayer. Due to strength and other problems, the product quality is not very stable. What Is The Ventilation Duct<\/p>\n\n\n\n

                        3. Leistung zur Ger\u00e4uschunterdr\u00fcckung<\/p>\n\n\n\n

                        The wall of super air duct is a kind of porous sound absorption material, which has good sound absorption effect for medium and high frequency sound waves. Some data show that the noise elimination capacity of super air duct can reach 18 dB \/ M ~ 21 dB \/ m when the medium frequency is 1 000 Hz ~ 2 000 Hz and the pipe diameter is 500 mm ~ 320 mm. It is a very good pipe type noise eliminator, which can eliminate the primary noise from air-conditioning equipment and the noise from valve body, valve body and air-conditioner With the extension of the pipe, the effect of the secondary noise produced by the pipe fittings is more obvious, so the special muffler can be omitted. However, the galvanized iron sheet air duct and the inorganic glass fiber reinforced plastic air duct have no noise elimination performance, so the muffler should be added. What Is The Ventilation Duct<\/p>\n\n\n\n

                        4. Feuchtigkeitsbest\u00e4ndigkeit<\/p>\n\n\n\n

                        There are no perishable materials and components in the materials used for the super air duct. The outer surface of the air duct is made of moisture-proof aluminum foil cloth. Its moisture permeability is 0, and it has a strong anti-corrosion ability. The water absorption rate of fiberglass board is not more than 2%. When the pipe is in a humid environment for a long time, its noise elimination and heat preservation properties will not change. Because it is a porous material, it is necessary to prevent the pipe interior, pipe end, an incision from being soaked by water for a long time. The galvanized iron sheet air duct is easy to be affected by moisture, corrosion, and rust, which is more serious when conveying air for air conditioning with large moisture content. Especially when the air duct is made, the galvanized layer at the iron sheet bite is damaged, and it is not easy to make up an anti-corrosion treatment. There will be condensation at the place where the cold bridge is produced, which will cause corrosion to the pipeline, thus affecting its overall life. Due to the restriction of raw material ratio, the stability of moisture-proof ability of inorganic FRP air duct is poor. What Is The Ventilation Duct<\/p>\n\n\n\n

                        5. Luftleckage<\/p>\n\n\n\n

                        Gem\u00e4\u00df der Spezifikation ist das Leckluftvolumen des Luftkanals nach dem Prozentsatz des Systemluftvolumens entsprechend der L\u00e4nge und Luftdichtheit des Kanals zu berechnen. Die Luftleckagerate des Luftkanals sollte 10% betragen (f\u00fcr das allgemeine Luftzufuhr- und Abluftsystem). Der Superluftkanal wird durch Schlitzen, Zapfen und Kleben verbunden und die Fuge wird mit Aluminiumfolienband abgedichtet. Die Luftleckage des nicht verst\u00e4rkten Luftkanals betr\u00e4gt grunds\u00e4tzlich 0, die Luftleckagerate des verst\u00e4rkten Luftkanals betr\u00e4gt nicht mehr als 1% und die Luftleckagerate des Systems betr\u00e4gt nicht mehr als 2%. Wenn der statische Druck im Rohr 500 PA betr\u00e4gt, betr\u00e4gt die Luftleckage pro Fl\u00e4cheneinheit des Luftkanals weniger als 118 m3 \/ h \u00b7 m2.<\/p>\n\n\n\n

                        6. Gewicht<\/p>\n\n\n\n

                        Das Raumgewicht des Superkanals betr\u00e4gt 64 kg \/ m3 und das Fl\u00e4chengewicht betr\u00e4gt 2,8 kg \/ m2 (Dicke) \u03b4= 25 mm, einschlie\u00dflich des Gewichts der Aufh\u00e4ngung (1,5 kg), die die leichteste aller Arten ist Kanalmaterialien. Das Raumgewicht des Luftkanals aus verzinktem Eisenblech betr\u00e4gt 7 870 kg \/ m3 und das des Luftkanals aus anorganischem glasfaserverst\u00e4rktem Kunststoff 2 100 kg \/ m3.<\/p>\n\n\n\n

                        7. Reibungswiderstand<\/p>\n\n\n\n

                        Die Innenwand des Superluftkanals besteht aus Glasfasergewebe und die Oberfl\u00e4chenrauhigkeit betr\u00e4gt 0,2 mm, was etwas gr\u00f6\u00dfer ist als der gemessene Wert des Eisenblechluftkanals. Wenn die Windgeschwindigkeit im Luftkanal weniger als 15 m \/ s betr\u00e4gt, betr\u00e4gt der Widerstand auf dem Weg weniger als 7% im Vergleich zum Eisenblech (einschlie\u00dflich des Widerstands, der durch die verst\u00e4rkte Strebe im Luftkanal erh\u00f6ht wird), Im Allgemeinen Bel\u00fcftung und Klimaanlagenkanal, der Widerstand entlang des Weges macht nur etwa 10% des lokalen Widerstands aus (der lokale Widerstand von Superkanal und verzinktem Eisenkanal ist im Wesentlichen gleich), so dass der erh\u00f6hte Bel\u00fcftungswiderstand von Glasfaserkanal weniger als 1% im Vergleich betr\u00e4gt mit Eisenrohr, das keinen offensichtlichen Einfluss auf das gesamte Rohrsystem hat und vernachl\u00e4ssigt werden kann. Der Reibungswiderstand des anorganischen FRP-Kanals ist gr\u00f6\u00dfer als der des Eisenblechkanals, der dem des Verbundglasfaserplattenkanals nahe kommt.<\/p>\n\n\n\n

                        8. Abschirmkapazit\u00e4t des Glasfaserkanals<\/p>\n\n\n\n

                        Die Innenwand des Verbundglasfaserkanals besteht aus Verbundglasfasergewebe, das die F\u00e4higkeit hat, Fasern vor dem Fliegen abzuschirmen. Bei einer Windgeschwindigkeit von 15 m \/ s im Kanal f\u00e4llt die Faser in der Innenwand des Kanals nicht ab, was die nationalen Gesundheitsstandards vollst\u00e4ndig erf\u00fcllt und die Raumluftqualit\u00e4t und -umgebung gew\u00e4hrleistet.<\/p>\n\n\n\n

                        \"quadratischer
                        <\/figcaption><\/figure>\n\n\n\n
                          \n
                        • Anwendungswirkung und Perspektive des L\u00fcftungsrohres<\/li>\n<\/ul>\n\n\n\n
                            \n
                          1. Luftkanal aus verzinktem Eisenblech. Als eine Art traditionelles L\u00fcftungsrohr eignet es sich generell f\u00fcr HLK-Projekte mit geringen Anforderungen an die Umgebungsbedingungen. Es ist geeignet f\u00fcr die F\u00f6rderung von trockenem und nicht korrosivem Gas. Im Gebrauch kann es aufgrund des gro\u00dfen L\u00e4rms und der D\u00e4mmwirkung nicht lange anhalten, auf lange Sicht kann es nach und nach durch L\u00fcftungsrohre aus neuen Materialien ersetzt werden.<\/li>\n\n\n\n
                          2. Luftkanal aus GFK. Es ist eine Art L\u00fcftungsrohr, das sp\u00e4ter als Luftkanal aus verzinktem Eisenblech ist. Es hat die Eigenschaften des Brandschutzes und der Korrosionsbest\u00e4ndigkeit. Es eignet sich f\u00fcr die Au\u00dfenluft-HVAC-Technik und korrosive Umgebungen. Sein Aussehen wurde von vielen Verbrauchern bevorzugt. Angesichts der tats\u00e4chlichen feuchtigkeitsbest\u00e4ndigen Wirkung des FRP-Luftkanals und der Gesamtqualit\u00e4tsleistung hat jedoch nicht die erwartete Wirkung erreicht. Und da der Preis nach Gewicht berechnet wird, macht diese unangemessene Preismethode den Preis des FRP-Luftkanals teurer nicht direkt proportional zum tats\u00e4chlichen Wert, so dass die Zahl der Nutzer in den letzten Jahren zur\u00fcckgegangen ist. Mit der Weiterentwicklung der Marktwirtschaft m\u00fcssen Material und Preis des GFK-Luftkanals ge\u00e4ndert werden, um langfristig \u00dcberlebens- und Entwicklungsraum zu erhalten.<\/li>\n\n\n\n
                          3. Glasfaserkanal aus Verbundwerkstoff. Es ist eine neue Art von L\u00fcftungsrohr, die in den letzten Jahren auftaucht und verwendet wird. Es wurde nach und nach von den Menschen akzeptiert und nimmt einen gr\u00f6\u00dferen Marktanteil ein. Seine Gesamtleistung ist vorteilhafter als die des vorherigen Bel\u00fcftungsrohrs, und sein Design ist wissenschaftlicher und vern\u00fcnftiger, humanisierter. Es ist nicht nur einfach zu installieren und zu verwenden, sondern hat auch eine bessere Leistung, wirtschaftliche Anwendbarkeit, Ger\u00e4uschunterdr\u00fcckung, W\u00e4rmeerhaltung und Platzersparnis langfristigen Entwicklungsraum. Mit dem kontinuierlichen Fortschritt von Wissenschaft und Technik und der st\u00e4ndigen Verbesserung des Verst\u00e4ndnisses der Menschen wird es zu einer Art universellem L\u00fcftungsrohr und nimmt einen gr\u00f6\u00dferen Markt ein.<\/li>\n<\/ol>\n\n\n\n

                            Mit einem Wort, der Luftkanal aus Verbundglasfaserplatten hat die Vorteile der Ger\u00e4uschunterdr\u00fcckung, der W\u00e4rmeerhaltung, des Brandschutzes, der Feuchtigkeitsbest\u00e4ndigkeit, der geringen Luftleckage, der stabilen Leistung, der wirtschaftlichen Anwendbarkeit usw. an verschiedenen Orten, je nach unterschiedlichen Anforderungen, alle Arten von Luftkan\u00e4le werden ihre Verwendung haben. Es hat die Vorteile des leichten Materials, einfache Handhabung und Aufh\u00e4ngung, bequeme Umr\u00fcstung vor Ort, einfache Konstruktion, bequeme Montage, weniger abzudichtende Anschlussstellen, Einbauraum sparen, hohe thermische Effizienz, leiser Betrieb, lange Lebensdauer, optimale Leistung- Preisverh\u00e4ltnis und niedrige Gesamtkosten. St\u00e4rkung der Erforschung und Anwendung neuer Materialien und neuer Technologien von L\u00fcftungsrohren, damit wir uns besser an den Markt anpassen und den Markt erfassen k\u00f6nnen.<\/p>","protected":false},"excerpt":{"rendered":"

                            What Is The Ventilation Duct What is the common ventilation duct in the ventilation and air conditioning system? What are<\/p>","protected":false},"author":1,"featured_media":11414,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[200],"tags":[182,202,203,180,201],"class_list":["post-11402","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ventilation-duct","tag-hvac-air-duct","tag-iron-sheet-air-duct","tag-rectangular-duct","tag-round-duct","tag-ventilation-duct"],"jetpack_featured_media_url":"https:\/\/duct.harsle.com\/wp-content\/uploads\/2021\/06\/What-are-the-properties-of-ventilation-ducts.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/posts\/11402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/comments?post=11402"}],"version-history":[{"count":0,"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/posts\/11402\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/media\/11414"}],"wp:attachment":[{"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/media?parent=11402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/categories?post=11402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/duct.harsle.com\/de\/wp-json\/wp\/v2\/tags?post=11402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}