Welcome Sungjae I&T
 
Date : 13-11-26 07:12
10. Damper
 name : admin
조회 : 58  

* Butterfly Damper
. Features
Butterfly damper is built to withstand harsh operating environments of high-temperature, high-humidity, this is possible with Damper. Also, simple structure and low cost production by the versatile.
. Functional design
1000mm 1200mm x 1200mm Diameter or less or equal to the square of the norm of manual handle and gear is also used, but in emergencies, the Actuator driven by principle applies.
 . Where used
General Industrial,   Steelworks,   Power plants,   Factories,
Cement plants,   Chemical plants
 
* Stack Damper               
. Features
The stack damper, gas turbine is installed on the downstream outlet of boiler set be opened by the pressure and by a signal or operation is open or closed. When not driving the gas turbine heating coil to protect from the rain and when the gas turbine of this operation, the stack damper
blade is open, because the exhaust gases to be.
. Functional design
Opening pressure is determined by customer specifications, usually in 80mmWG ~ 150mmWG there will be a stack damper. In addition, the temperature of exhaust gas is high, the materials used must withstand the heat. Stack damper operated by the actuator, but, electric power fail during exhaust stack must be opened by the pressure of the gas.  
. Actuator design
Stack damepr of the electric motor type actuator install, and open when the gas pressure by the Blade to open a stable balance weight should be installed.  
. Where used
Gas turbine down stream side boiler stack
 
* Flap Isolation Damper
. Features
Flap damper has a seat leak isolation function is required for a high tightness. The structure has a circular or rectangular blade consists of a single and double type. Blade Frame's seat for each of the linkage is formed by a separate structure that consists of driving at the same time.
. Actuator design
Falp isolation damper actuator of the electric motor is usually used for the isolation 2 position
type. The use of pneumatic type actuator is also possible, but due to high speed characteristics
flap blade and seat to relieve the impact of the operation must afford at the time.
. Where used
General Industrial,   Steelworks,   Power plants, Factories, Cement plants, Chemical plants
 
* Double Damper
. Features 
Double louver damper used for a thermal power plant FGD process, basically with seal air system requires a 100% leak zero.
Seal air system, the inflow of air at normal temperature which may be incurred as a damper to prevent condensation inside the steam heater or electric heater is supplied with heating devices.
. Functional design
Double louver damper as the actuator can operate simultaneously in one and, if necessary, by each of the actuator can be designed’m able to work independently.
However, two of each weight is designed with a lot of frame and blade, also wasteful because a lot of seal air volume, Tandem louver damper is used nowadays.
. Actuator design
All actuator for a reverse operation spring return type or with accumulator about fail mode and in order for the 3 operations or more to be possible must be designed.
In addition, the actuator applies the electric motor, pneumatic is used, if necessary, and
electro hydraulic type is used.

* Tandem Damper
. Features 
Tandem louver damper used for a thermal power plant FGD process, basically with seal air system requires a 100% leak zero.
Seal air system, the inflow of air at normal temperature which may be incurred as a damper to prevent condensation inside the steam heater or electric heater is supplied with heating devices.
. Functional design
Tandem louver damper is one of the Frame, Blade is composed of tow layers in one of the light. So easy to install and operte a narrow depth is excellent.
In addition to an operation of the one actuator and seal air volume is very small.
The design of the blade to minimize the pressure loss, pressure and heat to minimize the bending characteristics can be used in thermal power plant FGD
. Seal air system
100% zero leakage seal air system is added to seal air fan filter according to customer specifications and is supplied by installing a silencer.

* Control Damper
. Features
Control louver damper is the airflow volume control dampers. Therefore, gas or air adjustment
to a smooth flow and blade was opposed to open the closed drive. Also need high tightness is not a requirement, an important angle adjustment while driving conditions.
. Functional design
Control damper is composed of circles and squares, circular produced by the single blade,
and usually greater than 3,000mm diameter. is designed with 2 blade . Pressure drop relatively
the circular price is big from velocity where is identical, but are stronger rectangle with structure.
. Actuator design
Actuator is commonly an electric motor and pneumatic and electro hydraulic actuator, control damper electric motor type regulates an angle with positioner in compliance with 4~20mA signals, pneumatic type or electro hydraulic type changes 4~20mA signals with pressure signal and transmits and this positioner leads and an angle regulates . Tightness design Not required.
. Where used : General Industrial,   Steelworks,   Power plants,  
Factories,   Cement plants,   Chemical plants,