[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Pipeline Project] duct installed in place according to the site, can be connected into a length on the ground, with the lifting of the method in place, you can lookout tube a section of land on the bracket, section by section connections. General order is the first dry pipe ventilation pipeline project, after the manifold. Riser installation is usually installed from the bottom up. Post-installation leveling position, alignment, designed to meet the requirements specified. Duct installation should be noted: 1, when the duct using flangeless connection, the interface should be tight and firm. The four corners of the rectangular duct positioning and sealing arrangements must be applied. Duct connecting the two planes should be straight, not misplaced and distorted. 2, mounted on a bracket round wind pipe bracket should be located. 3, the wind piercing the roof should be set outside the rain cover. 4, easy to produce condensate transport duct, the slope of the design requirements should be installed. Can not have a vertical duct bottom seams, if seams sealed applications. 5, steel duct with brick, concrete duct connectors should conform airflow direction, wind pipe and duct joint surface must be sealed. 6, the branch duct insulation, hangers should be located in the outer insulation, and not damage the insulation. 7, air hose and the mains plug using vertical refrigeration room project, the interface should be set to wind adjustment. After the air duct tightness test tube installed, the system pressure should be closely rating test, air leakage should be in line with national norms "Ventilation and Air Conditioning Engineering Construction Quality Acceptance" tightness test should GB50243 the requirements, the system meets GB50243 specification appendix leaked assay and amount of air leakage testing. Tightness test should be low pressure system uses sampling, the sampling rate of 5% and less than one sampling system. When processing and leaked test failed, the sampling rate should be required to do the amount of air leakage test. Tightness test medium voltage systems, should be under strict eligibility leaked detection of air leakage duct system for sampling, the sampling rate of 20%, and less than one sampling system. High-pressure system should be fully carried out air leakage test. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - decontamination] turbulence turbulence cleanroom cleanroom main features are never out of the air flow between the flow (from the air port to the return air) stream flow cross section is varied, the clean room is much larger cross-section than the outlet cross section project, and therefore can not cross section in the whole room or work area in the whole cross-section chamber formed uniform airflow. Therefore, the flow line outlet after another great or increasing the angle between the radius of curvature is small HVAC engineering, air can not flow in one direction in the room, it will hit each other, there will be reflux, vortex generation . This determines the turbulent flow regime is the essence of clean room: mutation flow; non-uniform flow. This is more precise than the turbulent flow clean room to describe the chaos, more comprehensive. Mainly determined by the Reynolds number turbulence, which is mainly affected by the flow rate, but if an efficient air filter top form sent, even if the flow rate is very low, but also produce the above results, which because it is a Mutation flow and non-uniform flow. Therefore, this case is not only due to turbulent flow mixing occurs between the stratosphere, but also blended the whole range of big room reflux, vortex occurred. Ventilation pipeline project | Shijiazhuang engineering | Tianjin Jinzhong Ji HVAC HVAC company by Tianjin Jinzhong Ji purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the group into the brilliant and you work for a better future!