Introduction to damper series products

Function introduction of round air door: round air door is also known as round baffle door, round shut-off door and round regulating door
The round damper is mainly used in the air duct and flue of power plant for intercepting flow or regulating medium flow, and can also be used in the air duct and flue of other industries
The round damper can make all the media in a pipeline of the system flow / cut off, or the media flow changes with the control
For the circular damper with small diameter, it has two functions of intercepting flow and regulating medium flow
For the circular damper with large diameter, its regulating function is not obvious, and its intercepting function is mainly used
Main performances and characteristics of round damper: (1) it is suitable for pulverized coal, smoke, dust, gas and other media; Operating temperature & le; 450 ℃ (2) dd41 series round dampers are available for users to choose from ordinary and wear-resistant types to ensure the requirements of different working conditions and improve the service life of dampers
(3) Dd42 series square air door can be selected from single axis to six axis
(4) Manual, worm gear, electric and other transmission modes can be adopted
Scope of application of round damper: round damper is a kind of damper, because it is equipped with electric actuator
Therefore, round damper is also called electric regulating round damper
Round damper is a kind of valve that can be fully opened and fully closed by using electric round door plate with valve spindle
In the pipeline system, it regulates medium flow and pressure relief, and is often used for electric power and hydraulic power, Petroleum, chemical industry, smoke and air duct, pulverized coal pipeline and other places
Product parameters of round damper: generally, the working temperature is within 700 ℃, cold and hot air or flue gas can be used, which can adapt to the working environment of high wear, and the activity range of baffle is 0-DEG- 90° The air leakage rate of full close is less than 3baifenzhi
The driving mode is divided into three modes: electric, manual and pneumatic
The specification is generally DN100 to dn8000, which can also be customized according to needs
Installation method of round damper 1 During installation, the door panel shall stop at the fully closed position; 2
The opening position shall be determined according to the rotation angle of the door panel; 3
The round damper with large mass shall be set on a firm foundation; 4
Flange connection is generally adopted; 5
The position of the round damper can be arranged horizontally or vertically
6
In case of leakage at the shaft end seal during operation, tighten the gland nut for a few turns, and the gland nut still leaks after tightening, indicating that the packing in the sealing box has been worn and needs more Huanxin packing
Performance characteristics of regulating damper: 1 The damper blade is at 90 DEG; Rotate within the range of angular stroke, and the opening and closing time of full stroke is usually ≤ 50s (can also be selected according to user requirements)
2
The regulating damper structure is a shutter baffle structure, and a connecting rod mechanism is designed externally to enable several blades to open or close at the same time
3
The baffle blade adopts wing structure, with good rigidity, high strength and low resistance
4
Several baffle blades rotate in a & ldquo; VIII & rdquo; The opening and flow are linearly adjusted
5
The driving mode of regulating damper is usually electric driving mode
The installation forms of valve electric device and damper are divided into direct connection and crank support (local or remote)
Features of louver baffle door: the design wind pressure of louver baffle door is 200Pa
Because the air duct contains sulfur dioxide corrosion, the material of damper body is made of SS304 material
Each group of louver baffle door is directly connected with the electric device without gap, and the switch is flexible in place
When the louver baffle door is opened and closed in place, there is a special multi-functional limit device with accurate positioning, The closing seal of the air door adopts special materials
Channel steel is set around the air door frame, and the U-shaped groove is filled with silicone rubber or high temperature and corrosion-resistant materials
Scope of application of louver baffle door: louver baffle door is one of the important equipment in the flue and air duct system of boiler unit in thermal power plant
It is used to circulate and turn off the medium in the flue and air duct system
The baffle rotates 90 & deg; The stroke can be opened or closed in the boiler flue gas and air system (it can also be adjusted as a whole)
Generally, it can be arranged on air preheater inlet, dust collector outlet, induced draft fan inlet, outlet and other air ducts and flue pipelines
The shutter type closing baffle door is suitable for cold, hot air duct or flue, as well as flue gas desulfurization or flue gas dust removal system, which plays the role of shutdown and isolation
The product has the advantages of flexible opening and closing rotation, small driving torque, tight and reliable closing and long service life
It is an important auxiliary equipment in the boiler system of thermal power plant