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What environment is used for performance testing of smoke exhaust fire dampers

Release Time：2021-07-21

There are two testing items for smoke exhaust fire damper products: closing reliability. In 10 closing operations, the fire damper shall be able to be flexibly and reliably closed from the position in the opening and closing operations. All parts shall be free from obvious deformation, wear and other damage affecting its sealing performance.
The reliability of closing in case of fire, alcohol lamp or other fire source is used to melt the temperature sensor of the fire damper. After the temperature sensor is activated, the fire damper shall be automatically closed and reliably closed, including: the smoke exhaust fire damper shall be automatically closed, the smoke exhaust fire damper shall be automatically closed, and the gap between the blades or between the blades and the baffle shall not be more than 2m m.
Measure the gap between the blades or between the blades and the baffle with a feeler gauge. After 10 opening tests, the electric and manual smoke exhaust valves shall be opened immediately. The manual operation of the smoke exhaust fire damper shall be convenient, flexible and reliable, and the manual opening operation force shall not be greater than 100N.
Electric operation performance The electric operation performance smoke exhaust valve shall be flexibly and reliably opened when it is 15% lower or 10% higher than the rated working voltage. 2.4 the opening signal output function, the opening signal output function, and the smoke exhaust valve shall have the opening signal output function.
In the selection of fire damper processing, the height dimension of the smallest resistance of the circular fire damper is the largest, and the production is complex, so the application is mainly rectangular fire damper.
(1) Air supply, including ventilation, such as fresh air supply and exhaust, has a wide range. For example, the air in factory workshops and production sites needs to be discharged outdoors due to harmful gases, and outdoor air needs to be transported indoors. At this time, air transportation pipelines with large flow rate and low pressure should be used. Spiral fire dampers are most suitable. Generally, galvanized iron pipes are used, and rust steel pipes without fire dampers are used in corrosive and especially humid places.
(2) to send cold air, the most common is the central air conditioning pipe, this pipe needs to add insulation material, spiral fire damper can be attached insulation material, the appearance looks beautiful.
(3) exhaust fumes, restaurants, restaurants, hotel kitchens have a large number of fumes, need to be discharged, the use of circular fire damper is the oil chimney, here, the spiral fire damper should be called fume pipe.
(4) Dust removal. Some factories have a lot of dust in the production workshop and require special dust removal devices. For pipes with large stroke flow, spiral fire dampers can be used.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong, the hometown of FRP in China. The company has Grade II qualification for fire protection facilities engineering, Grade II qualification for construction mechanical and electrical installation engineering, Grade II qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, and an axial fan invention patent, A fan utility model patent, environmental assessment, safety assessment, three simultaneous and other procedures are complete.