Cleaning liquid should be used to remove oil pollution and dust accumulation on the surface of Shandong ventilation pipe before cleaning. The cleaning liquid shall be neutral detergent which has no damage to the surface of the sheet, does not produce dust after drying and has no harm to the human body. Ventilation pipe production should be used after cleaning fluid cleaning, cleaning after the white cloth wipe check to meet the requirements, the phenolic plate, should be promptly sealed.
The inner wall of the color coated steel pipe shall be smooth, and the sheet shall not be damaged during processing, and the damaged parts shall be coated with epoxy resin. The four corners of the wind pipe, such as the bite joint, the riveted joint and the flange flanging, shall be sealed by the coating sealant or other sealing measures according to the design and cleanliness grade requirements.
Sealing material should adopt isobutyl rubber, chloroprene rubber, modified silica gel as the base material. The sealing surface of the joint of the wind pipe plate shall be located on the positive pressure side of the air duct wall.
What is the exhaust vent on the top of the pipe?
1, smoke exhaust specifications and design specifications inconsistent with the amount of smoke will naturally decrease.
2, some fan installation and pipe installation dislocation, affecting the flue gas circulation.
3, the exhaust port are arranged on the outside, in order to prevent rain and birds enter, generally in the exhaust port is provided with an anti bird bar and rain 100 pages, such as a rain per page, resistance is large, there is no room, smoke directly toward the window, but on the wall, will affect the flue gas discharge.
4, when checking, the position and distance of the anemometer may have some influence on the measurement of wind speed, which results in the inaccuracy of the measured data, and affects the calculation of the amount of smoke exhaust.
5 、 pipe joint leakage of smoke, individual use inorganic or flame retardant glass fiber reinforced plastic pipe, in the smoke exhaust machine after opening even rupture.
6, large resistance pipe, the pipe has some snakeskin bag, plastic film and other debris to clean up, some brick flue wall is not painted, not smooth, resulting in high resistance.
7, in order to shock the smoke exhaust pipe, generally have soft joints, soft joints and hard pipe connection is not tight, often leakage smoke phenomenon.
8, the pipeline specifications do not match, the cross-sectional area of the pipeline should be matched with the design cross sectional area, and some because of the conflict with other pipe installation, and reduce the cross-sectional area of the pipe, affecting the amount of flue gas through.
9 、 the pipe is too long, elbow corner is much, and the resistance is big, which affects the flow rate of flue gas.
Shandong ventilation pipe processing company always adhere to the continuous management innovation and scientific innovation, will win the support and trust of customers with excellent quality and perfect customer service service, welcome new and old customers to visit our company to negotiate cooperation!