Spiral Air Duct

Ventilation ducts are widely used in common living measures and are an indispensable part of the fresh air system. Its classification is divided into common square ducts and round ducts from appearance. The square air duct can be divided into an angle iron flange air duct and a common plate flange air duct. Round ducts have another special classification, that is, spiral ducts.

Spiral ducts in the market are generally divided into three categories according to their materials: galvanized spiral ducts, stainless steel spiral ducts, and composite spiral ducts. Among them, the stainless steel air duct has the best quality and strong applicability, but the price is high. Spiral Air Duct

The most widely circulated spiral duct on the market is galvanized sheet. Galvanized spiral ducts are basically the characteristics of stainless steel spiral ducts, but the price is relatively only two-thirds or even lower than that of stainless steel ducts. Composite spiral air ducts are generally used in places where the external environment is relatively common and the requirements for air ducts are not too high. Spiral Air Duct

Because the iron sheet is prone to chemical reactions in various environments, it can cause corrosion and rust. However, zinc hardly changes in dry air. In humid air, a dense basic zinc carbonate film will be formed on the zinc surface. The spiral duct is mainly plated with a layer of zinc on the duct iron sheet to protect the iron sheet. After the zinc coating is passivated, dyed, or coated with a light protectant, its protective and decorative properties can be significantly improved. Spiral Air Duct

Features of Spiral Duct

1. Smooth appearance, no zinc tumors, burrs, and silvery-white.

2. Easy installation and few connection points. Spiral Air Duct

3. Low ventilation resistance and low ventilation noise.

4. Both strength and rigidity are good. Spiral Air Duct

5. The thickness is controllable and can be selected arbitrarily within 5-107μm.

6. No hydrogen embrittlement, no temperature hazard, which can ensure the mechanical properties of the material remain unchanged.

7. It can replace part of the hot-dip galvanizing process. Spiral Air Duct

8. Good corrosion resistance, neutral salt spray test up to 240 hours.

9. It is completed by the hot-dip galvanizing method, which is suitable for various strong acid, alkali mist, and other strong corrosive environments.

10. Various specifications of air ducts can be specially designed and customized according to customer requirements. Spiral Air Duct

Advantages of The Mechanism Spiral Duct

1. Good airtightness. Spiral Air Duct

2. Both strength and rigidity are good.

3. The ventilation resistance is small, the ventilation noise is small, and the round pipe is better than the square pipe.

4. Easy installation and few connection points.

5. High grade and beautiful appearance. Spiral Air Duct

The installation of the spiral duct significantly reduces the connection points between the pipe and the pipe and minimizes the leakage of the pipe joints. The typical spiral duct length is 3~6m, while the typical rectangular duct length is only 1 ~1.5m; and only one pipe connection is needed to connect two spiral ducts, while the connection of traditional rectangular ducts often requires a completely independent double flange system. To sum up, the spiral duct has the following advantages. Spiral Air Duct

1. The spiral duct is a standardized product. The production of spiral round duct fittings (pipe fittings and joints) has been highly automated, systematic, and has industrialized quality control.

2. Low installation cost. The installation time of the circular duct system is only 1/3 of the similar rectangular duct.

3. Usually only a small installation space is required. Without increasing any pressure drop, a round pipe with a diameter of 200mm in the same installation space can replace a rectangular pipe with a diameter of 250×150mm. Without adding additional installation space, several parallel circular pipes can replace flat rectangular pipes. Taking all factors into consideration, in most cases, the space occupied by a circular pipe is less than that of a rectangular pipe.

For the same pressure characteristics, the installation space of several circular pipes is often the same or less than that of a rectangular pipe. Many rectangular piping systems require a 4-bolt system for installation, thus adding 40 to 80 mm in all directions of the piping.

4. Pressure reduction. The wind resistance of a circular duct is much smaller than that of a rectangular duct.

5. Precise bite forming process. The molds used in the imported equipment are made of special steel structures. Even after three to five years of use, the surface of the pressing mold remains unchanged, so that the surface of the galvanized steel sheet is not damaged, which greatly extends the service life of the air duct, and at the same time The seams are even and flat, the bite is tight, the connection force is strong, and the airtightness is good.

6. The leak-proof system of the safety sealing ring.

7. The exquisite spiral pressing corrugated rib process makes the spiral duct have the best strength to withstand pressure. After the spiral corrugated rib is added, the thickness of the bite and lock seam is four times that of the pipe body. The rigidity of the pipe is very large, showing a firmness. Superiority, it can withstand the maximum pressure load without destructive deformation, the thickness of the material can be reduced by 15%, and the cost can be reduced.

8. For the same cross-sectional area, the circumference of the rectangular duct with a length-to-width ratio of 1:3 is 40% longer than that of the spiral duct, which saves materials; in the same way, because the circumference of the spiral duct is short, the insulation material can be reduced accordingly.

9. Beautiful pipeline layout and strong three-dimensional effect: When the pipeline must be exposed as an architectural feature, the beautiful and elegant formed flanged duct will be the best choice.

10. The installation form of the socket-type spiral round duct.

Among our many ventilation systems, the automatic spiral duct machine has played a great role in it, and it has also brought great help to our lives, but I believe that many people still don’t know our automatic spiral. Air duct machine, today, in order to help you better understand our spiral air duct machine, I will introduce some principles and uses of our automatic spiral air ductmachine for everyone to understand.

Automatic spiral duct machines are generally divided into three categories according to their materials in the market: galvanized spiral ducts, stainless steel spiral ducts, and composite spiral ducts. In order to achieve the goal of energy-saving and environmental protection of automatic spiral duct equipment, various enterprises have carried out related activities around the theme of energy-saving and environmental protection. Fully automatic spiral duct machines have increased in new product development, product design, manufacturing technology, and production line technical transformation, and a large investment has been made to promote equipment upgrades.

The spiral air duct machine is a machine that produces spiral ducts. Spiral duct machines, also known as spiral slit thin-walled ducts, were used in the Western military industry in the early days, such as warships, ship emptying systems, etc., and later in civilian facilities such as trains, subways, and mines. The system can handle stainless steel, galvanized steel, aluminum, and copper plates, automatic coiling equipment, automatic installation of measuring equipment, the automatic digital system can produce a variety of different pipes.

Many people are not familiar with spiral duct machines. At present, the spiral duct market is generally divided into three categories according to material: galvanized spiral duct, stainless steel spiral duct, and composite spiral duct. Among them, the stainless steel duct is of good quality and has strong applicability, but the price is high. At present, the spiral air duct widely circulated in the market uses galvanized sheets. Galvanized spiral duct is basically the characteristic of stainless steel spiral duct.

But the price is only two-thirds or lower than that of stainless steel ducts. According to the structure and environment of the place where the ventilation ducts need to be installed, the ventilation duct design is carried out to ensure the practicability of the ventilation ducts. Generally, the installation of ventilation ducts for air supply and exhaust systems and air conditioning systems must be carried out on the roof of the building, and the obstacles at the installation site have been cleared.

The spiral duct machine has a stable structure, not only because of its high strength in material but also because the material of this duct is very hard. In this way, driven by the material, the spiral duct machine has a structure that is not easily damaged by external forces and can be reliable and stable in use. When the structure is not prone to problems, the spiral duct can always operate reliably.

The air duct is mainly used to connect the air circulation between the two places and play a role in ventilation. Spiral ducts are currently the most widely used on the market. The scope of application of spiral duct is very wide. Purification system return air duct, central air-conditioning ventilation duct, industrial air supply and exhaust ventilation duct, environmental protection system suction and exhaust duct, mine gas drainage pipe, mine rubber-coated air duct, etc. A spiral air duct is a thin-walled tube made of metal strips that is rolled into a spiral seam.

It is round, non-welded, air-tight, and water-tight. It is mostly used for air supply and bulk material transportation, instead of traditional white iron pipes (that is, manual Bite seam iron pipe). It is a kind of windpipe, full mechanism, straight pipe without manual beating.

Ventilation system: Send fresh air and exhaust, exhaust harmful gases outdoors, and send outdoor fresh air indoors. Generally speaking, the flow of the ventilation system is very large, so it is required to use the air conveying pipe with less resistance to save cost, and an operating cost-the spiral air duct is the most suitable. Generally, galvanized iron pipes are used, and stainless steel pipes are used in corrosive and particularly humid places.

Air-conditioning system: The spiral air duct can be pasted with thermal insulation material, and the appearance is beautiful.

Oil fume exhaust system: A large amount of oil fume is generated in the kitchens of restaurants, restaurants, and hotels, which needs to be discharged. The spiral duct is suitable, strong, economical, and practical.

Dust removal system: Spiral ducts can be used for the collection and transportation of dust removal devices.

Bulk material conveying: Pneumatic conveying system. Some finer loose material particles can be conveyed by a spiral duct, which has low cost and good effect.

Spiral duct machine is a common equipment for producing spiral ducts and has good performance. Before use, you need to have a certain understanding of the operation method of the equipment, so as to better use the equipment. In addition, pay attention to proper maintenance and regular oiling. The following editor will introduce the operation method of the spiral duct machine and the precautions for oiling!

Operation Precautions of Spiral Duct Machine

Before starting up, when operating the spiral duct production line, the staff should be familiar with the structure, function, and use of the rolling mill, and can only operate with the permission of the manager. Before starting the machine, check the safety device carefully.

When in use, do not put your feet or feet on the drive parts and work-pieces of the roller. After the event is disconnected, the clutch must be turned neutral. Many people need to be guided by special personnel to cooperate with the work, and overloading is strictly prohibited.

At the end of the operation, the power supply should be cut off and the power box of the air duct production line should be locked. After the host is shut down, the overturn bearing of the upper roll duct production line should be reset, and the upper roll should be kept incorrectly adjusted. Also, keep the workpiece and debris to keep the machine clean.

Maintenance of Spiral Duct Machine

1. The pressure gauge of the spiral duct machine needs to be checked every six months.

2. Under the nominal pressure of 500 tons, the local lubrication height promised by the set load is 40 mm. Excessive local lubrication can easily cause column strain or other undesirable phenomena.

3. When the spiral duct machine is shut down for a long time, the operator should wipe it clean and apply anti-rust oil.

4. Spiral duct oil and liquid must be strictly filtered before being allowed to be injected into the fuel tank.

5. The working oil of the spiral duct machine is No. 46 wear-resistant hydraulic oil, and the working oil temperature is between 15-60 degrees Celsius.

6. Lubricating oil should be injected into the slider frequently, the outer surface of the column should be kept clean, and the spiral duct machine should be filled with oil before each operation.

7. The oil in the operation of the spiral duct machine shall be replaced once a year, and the replacement time shall not exceed three months.

Choosing high-quality spiral duct machines, using spiral duct machines reasonably, and paying attention to maintenance can produce qualified and high-quality spiral ducts stably for a long time.

A spiral air duct is a type of ductwork used in HVAC systems to distribute air throughout a building. It consists of a continuous spiral of metal, typically galvanized steel or aluminum, that forms a cylindrical tube. Spiral ductwork is widely used in both residential and commercial buildings due to its efficiency, durability, and ease of installation.

Here are some key features and advantages of spiral air ducts:

Efficiency: Spiral ductwork is designed to minimize air resistance, which helps to improve the efficiency of HVAC systems by reducing pressure drop and energy consumption.

Durability: The use of high-quality materials such as galvanized steel or aluminum ensures that spiral ducts are durable and resistant to corrosion, extending their lifespan and reducing maintenance requirements.

Air Quality: Spiral ductwork is easy to clean and maintain, helping to ensure good indoor air quality by minimizing the buildup of dust, dirt, and other contaminants.

Flexibility: Spiral ducts can be easily customized to fit the specific layout and requirements of a building, making them suitable for a wide range of HVAC applications.

Aesthetics: The sleek and uniform appearance of spiral ductwork can enhance the visual appeal of a building’s interior spaces, especially when left exposed in architectural designs.

Quiet Operation: Spiral ducts are designed to minimize air turbulence and noise, resulting in quieter operation compared to some other types of ductwork.

Quick Installation: Spiral ductwork is relatively lightweight and easy to handle, allowing for faster installation compared to traditional rectangular ducts. This can help to reduce labor costs and shorten project timelines.

Overall, spiral air ducts offer an efficient, durable, and aesthetically pleasing solution for HVAC ductwork, making them a popular choice for both new construction and retrofit projects.