What is the difference between a high temperature resistant exhaust duct and a high temperature resistant exhaust duct?

by:Haikuo     2021-06-08
High-temperature-resistant exhaust duct refers to exhausting air outside, which belongs to positive pressure air duct; while high-temperature-resistant exhaust duct refers to exhaust air outside, which belongs to negative pressure air duct.
  When selecting various high-temperature resistant air ducts and high-temperature resistant ventilation hoses, it should be proposed to the supplier whether it is used for exhaust or exhaust. If the air duct used for exhaust is used as an exhaust pipe, it will This causes the problem that the air duct is flat when it is drawn, and the use of the exhaust duct as an exhaust duct can be used normally, but it only increases the cost, because the exhaust duct is more expensive than the exhaust duct.
The difference between    high temperature resistant exhaust pipe and exhaust pipe lies in the following points:
  1. Due to the low wind pressure of the high temperature resistant exhaust pipe, the cloth, steel wire and spacing used are relatively conventional;
  2. The high temperature resistant exhaust pipe is customized for the pressure of the exhaust. For example, the density and thickness of the air duct cloth used for the exhaust pipe with negative pressure of 1 kPa and negative pressure of 3 kPa will be different. The greater the pressure, the thicker the cloth used; and the steel wire, the greater the pressure, the thicker the steel wire, and the greater the pressure, the denser the spacing. Simply speaking, in order to achieve the required negative pressure, the thickness of the dense cloth must be Start with thicker steel wire and dense spacing. For example, Hangzhou Haikuo high temperature resistant 500 degree air duct is a kind of exhaust duct specially used for fan exhaust.

  Of course, there are many other high-temperature resistant exhaust pipes that can also be used for air extraction, but the materials are changed to meet the requirements for the pressure range required by the customer.
   There are also customers who will say what is the difference between an exhaust pipe and a vent pipe. To be precise, the exhaust pipe can also be used as a vent pipe. Of course, the exhaust pipe can also be called a vent pipe, because the wind passes through the pipe. However, when purchasing a duct, the final choice must be based on the requirements of use.
   There are also many types of exhaust ducts and exhaust ducts. For example, the most common one is PVC telescopic ducts. This is a multi-purpose air duct. Exhaust ducts (atmospheric pressure ducts) can be produced from conventional materials. ), can also be customized according to customer requirements, negative pressure exhaust pipe, it is made of high-quality PVC plastic (nylon, three-proof) cloth, spring steel ring, wear-resistant rubber strip, etc. It can be bent and connected at will Free, lightweight, easy to bend the ventilation pipe, high temperature resistance, oleic acid resistance and flame retardant; the product is environmentally friendly, non-toxic, odorless, dust-free, and fiber-free.
  Negative pressure resistant vent pipes have a conventional spacing of 5-6cm, and can also be made into 3cm tight distance, the stronger the pressure and the ventilation effect; the pressure: customized according to customer requirements, can be customized to withstand the maximum negative pressure of 8000PA wind Tube length: 1-30 meters without joints, and the connection between the air duct and the ventilator is convenient.
  Scope of application: With ventilation equipment, it is widely used in computer rooms, basements, tunnels, municipal pipeline engineering, underground cable engineering, mechanical shipbuilding engineering, mining ventilation equipment, fire and smoke exhaust and other harsh working environments. To remove smoke and dust.
   is suitable for solids such as dust and fibers, gaseous media such as steam and smoke, factory suction and dust removal, exhaust gas emissions, blower exhaust gas emissions and welding gas emissions.
  Properties: good heat resistance, high elasticity and compression ratio of 3:1, external spiral wire is used for wear protection, external steel wire tightly clamps the pipe wall, small bending radius, not easy to kink, flame retardant According to: DIN 4102-B1. Specifications: The diameter of the negative pressure air pipe is 100mm-1000mm, and the length is usually 5m or 10m, and it can also be customized.
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