High-temperature aging room duct production and installation of the introduction of the aging room, but also because often at high temperatures (such as 80 °C) called high-temperature aging room. In the design and production of high-temperature aging rooms, wind pipes are involved because of the air supply, which is also called the design of the air duct. So, how do we design and manufacture high-temperature aging ducts? After years of experience in the design and manufacture of high-temperature aging rooms and the principle of production and installation of integrated central air-conditioning ducts, Wuhan is still measuring the following: Circular ducts are usually used in large ventilation projects, while the rectangles are usually used in air conditioning projects. Here we discuss the tin duct rectangular duct: Autozone Wheel Cylinder,Car Mechanic Simulator Drum Wheel Cylinder,Rear Drum Brake Wheel Cylinder,Car Wheel Cylinder Price RUIAN ZHUOLI AUTO PARTS CO.,LTD. , https://www.zhuoliauto.com
First, the aging room duct production:
(1) First, we must know what is the air duct?
The air duct, also called the air duct, is an entity used by the high-temperature aging room to guide the wind and guide the wind from one end to the other.
(2) What is the air duct used for? Here are 5 types:
?, tin, also called galvanized iron, commonly used between the thickness of 0.35 ~ 1.5mm. Because the surface is silver-white, it is not easy to rust and has a beautiful appearance. Usually, the tin plate is much more expensive than the black plate, and the cost is high.
?, aluminum plate commonly used in the thickness of 0.3 ~ 1.2mm, because the aluminum plate in the magnetic collision is not easy to produce sparks, commonly used in explosion-proof, ventilation and a large number of water vapor projects, aluminum plate relative to stainless steel costs even higher.
?, generally black iron, which is ordinary iron, commonly used between 0.5 ~ 2mm thickness of the black iron sheet easily rust, but the cost is relatively low.
?, plastic composite panels, commonly used between the thickness of 0.5 ~ 1.5mm, usually prefabricated boards, in the production of the combination as long as you can but this fire rating is lower.
Stainless steel commonly used in the thickness between 0.35 ~ 1.2mm, stainless steel surface smooth, high plasticity, toughness and mechanical strength, acid, salty gas and other dielectric corrosion, of course, is not absolutely not rust, because Concerning the stainless steel content of the material, this cost is 10 times higher than that of tin.
Second, there are two kinds of aging room ducts:
?, rectangular duct
?, round air duct
1. First of all, the general specifications of tinplate are 1M*2M, 1.22M*2.4M, and the thickness is 0.3, 0.35, 0.4~1.5mm, and 0.4*2m2*0.5m2, 0.75*2m2 that we often use.
2. The composition of the rectangular duct is made of duct, bolt, elbow, insulation board, flange, connection, and size head.
1, duct: under a good material, through the machine hemming, and then shape it OK. How can we call it good material? There is a principle here: no waste, full use of spare parts. For example: Here we have a 1M*2M sheet metal, then we are now under a 0.6*2M material, leaving 0.4*2 M. We must find out if there are 0.4*2 M available in this drawing, even if there is 0.2*2 M, then it is ideal to make full use of a whole sheet of iron.
2. Insulation board: Generally, according to the requirement of temperature difference, we can choose 20mm, 10mm, 5mm, but we must pay attention to: fully utilize the insulation board.
3, flange: After the duct is done, followed by the flange, the first choice of flange material, according to the size of the duct size, we use different angle iron for production. For example, 1M*2M, or larger than 1M*2M, we have to use 40*40*4t angle iron, even bigger, or according to the requirements of the buyer, less than 1M*2M and 0.1*0.2m in size, so that the air duct I choose 30*30*3t less than 0.1*0.2m air duct, we can use 25*25*3t angle iron.
4, bolts: must pay attention to the distance between the bolts too much waste, too little will not lock the dew, usually a recommended distance of 100-150m a bolt hole.
5, elbow: elbow production is more troublesome wind pipe, we must first determine the size and size of the elbow, size, for example, said that the existing two wind pipe just 90 °C, and now we extend two wind The pipe edge extends outward, straight there is a common point between them, this point is the center of this elbow, with the length of the line we extend out to do the inner radius of the arc, to extend the length of the line plus the length of the wind pipe The outer radius of the elbow, arc, then the elbow is drawn.
6, in addition we must understand here to do fire dampers, silencer static pressure box. For the fire damper, it is a timely manner that the fire should be semi-closed, and the silenced static pressure is the main function of silence.
7, the production of the size of the head, I think, there are two kinds of size head, a rectangular shape, a trumpet shape, here we mention, what size do I size in the first place? If the duct is concealed, that is, it is invisible, I do not have to consider it. If it is a surface mount, notice here that if the duct is suspended in the middle and the outlet is on both sides, we will have to make a trumpet-shaped head. If the duct has a side wall or other fixed object to the side of the outlet, then I make a right-angle size.
How to calculate the cross-sectional area of ​​the air duct, first of all we understand the amount of air output per hour, according to the formula:
L
F = 3600 ╳ V
In the formula: F is the sectional area of ​​the air duct
L is the total air volume of the fan
V wind speed, wind speed, it is not a foot value is also changed according to different environmental conditions, such as factories, offices,
The relative speed of the theater is not the same.
Here is an example to illustrate:
The air volume of an aging house system is L = 7200m3/h. A main air duct is required to be installed to determine the size of the air duct. It is assumed that the wind speed is 6-9m/s and the current air speed is 8m/s. Air duct area can be calculated based on:
L
F = 3600 ╳ V
It is also known that the size of the air duct is 800*300 (0.8*0.3), (0.6*0.4).
High-temperature aging room air duct lifting and outlet installation: Duct lifting is actually very simple, according to the size of the duct hanger is usually between 2.5m-3m. But sometimes it is necessary to pay attention, but the air outlet can not be directly blown to the person. The good air conditioning effect is to use the wind cycle to cool down, so that the human body feels comfortable, so this series of problems must make us pay attention in the work. Determined according to the actual situation on site.