Shenyang smoke exhaust project Pipe layout of
Ventilation duct It can make good ventilation, promote indoor air circulation, control the speed of air flow to alleviate the sense of suffocation. What is ventilation? It means that the dirty air in the room or enclosed space is discharged. The harmful substances produced in the factory are all discharged outside after purification treatment, and then fresh air is sent into the room to dilute the harmful substances in the air, Meet people's demand for air.
fire control Construction of smoke exhaust works
(1) The pipeline layout shall be as simple as possible, and it shall be installed vertically or obliquely as much as possible. The inclination angle shall not be less than 50 ° generally, so that the dust accumulated in the pipeline can slide down naturally.
(2) When the branch pipe is connected with the horizontal pipe or the main pipe, it is generally connected from the top or side of the pipe.
(3) Generally, pipes with circular cross section are used, because the four corners of square and rectangular cross section pipes will generate eddy current, which is easy to accumulate dust. The minimum diameter is generally not less than 100mm to prevent pipe blockage.
(4) The pipeline should not be supported on the equipment (such as the ventilator housing), and supports and hangers should be provided. When the steel pipe is installed horizontally, the spacing of its fixing parts shall not be more than 4m when the pipe diameter does not exceed 360mm; Not more than 3m when it exceeds 360mm. When it is installed vertically, the spacing of its fasteners shall not be more than 4m, and the pulling rope and hanger are not allowed to be directly fixed on the flange.
(5) In order to reduce the wear of the fan, the dust remover device should be placed in front of the fan. The above are some problems that should be paid attention to in pipeline design. In the actual design, the diameter, wind speed and flow of the pipeline should also be calculated according to the actual situation, so as to minimize the energy consumption of the air flow under the premise of ensuring the use effect.
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