Year1
- 规格：
- MF1400*800
- 材质：
- 钢板
- 厂家：
- 山东众安
.Zhongan pressureless damper advantages:
In terms of the opening force of the damper, since each group of dampers is composed of two small dampers, when one of the dampers is opened or closed, it does not matter whether it is opened or closed. What is the closing direction? The other air door opens and closes in the opposite direction. At this time, the pressure is released and it is easy to open and close. The force has nothing to do with the size and direction of the wind pressure. The old air door leaf is bulky and difficult to open when the negative pressure in the tunnel is large. , it can be opened only by
and
people at the same time.
Each set of pressure-free dampers consists of two sets of dampers, with two-way wind isolation. There is no need to install a reverse damper. The old style dampers are affected by the negative pressure in the tunnel, so a reverse damper must be installed to prevent the wind from flowing backward. When used in the direction, each group has two front and back dampers, which is composed of two groups of four dampers.
The pressureless damper is sealed on both sides and has small air leakage. In order to reduce the opening pressure, old-fashioned dampers sometimes install a small damper above the damper, which increases the air leakage of the damper.
The pressureless damper system is simple, sturdy and durable, and will not damage the damper during the opening process. Old-fashioned dampers are difficult to open and people often use heavy objects to pry and plate dampers, which can easily cause damage to the damper.
The pressure balance principle used in the pressureless damper closes smoothly, safely and reliably. Each group of pressureless dampers has two doors. When opened, the cross-sectional area is larger than that of the single door of the old style damper. It is easy for pedestrians, When passing materials, it is not easy to hit the damper, and the old-fashioned damper is difficult to open due to the high pressure of the damper, which may easily cause accidents of pinching pedestrians. The safety performance is worse than that of the pressureless damper. ]@}~)3_Copy
The entire material of the pressureless air door is made of iron products and has good fire resistance. It can effectively block possible fires in the belt conveyor lane and prevent fire and harmful gases from entering. In other tunnels, the anti-corrosion and moisture-proof properties are also good, and they are strong and not easily deformed. The door legs of the old-fashioned dampers are made of square wood, which have poor anti-corrosion and moisture-proof properties. They are prone to damage after long-term use and need to be replaced.
Under the action of the heavy hammer, the pressureless damper can realize mutual locking between the two dampers, which will not easily cause the problem of air flow short circuit.
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