[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - galvanized duct] a fire duct body, frame and fixed material, packing material must be non-combustible material, its fire resistance rating shall meet the design provisions. Second, the duct must be verified by test or process in nature, its strength and tightness requirements should be consistent with the design or the following requirements: 1. The strength of the wind pipe should meet at 1.5 times the working pressure without cracking at the seams; 2. rectangle duct allows air leakage should meet the following requirements: low pressure system in the duct QL≤0.1056P0.65 QM≤0.0352P0.65 duct pressure system high pressure system duct QH≤0.0117P0.65 where QL, QM, QH- - duct system in the corresponding operating pressure, allowing the duct leakage per unit area per unit time [m3 / (h · m2)]; P-- refers duct system operating pressure (Pa). 3. Low, Medium round metal duct, air duct and the use of composite materials in the form of non-metallic illegal orchid allowable air leakage duct, rectangular duct should be 50% of the specified value; 4. brick, concrete duct allow air leakage should not exceed the low pressure system rectangular duct 1.5 times the specified value; provides ventilation pipe works 5. smoke, dust, cold air system pressure by the duct system, grade 1 to 5 air conditioning system by high-pressure system Duct requirements. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - decontamination] decontamination of air purification treatment options ● air purification project at all levels of purification of air cleanliness refrigeration room works, shall be used for the early effect, in effect, high efficiency air filter three filters. 100,000 air purification, can be sub-generation high-efficiency air filter air filters. ● air filter arrangement and selection of installation shall comply with: the early efficiency air filters should not be the choice of oil-soaked filter; efficiency air filters should be set up to focus on purifying the air conditioning system of positive segment; HEPA filter or sub-efficiency air filters should be set at the end of purifying the air conditioning system, high efficiency air filter installation should be simple, reliable, leak and should be replaced; in effect, sub-efficient, high efficiency air filters should be chosen according to the rated wind; resistance, efficiency similar to the HEPA filter should be set at the same purification workshop. ● determining the centralized or decentralized clean air-conditioning system, should be considered the characteristics of the production process and clean room air cleanliness level, area, location and other factors. Where the production process of continuous, clean room or clean room area larger project quotation, centralized location and noise control and vibration control demanding clean room, should adopt a centralized air conditioning system purification. ● To clean up the air conditioning system of electric heating, you should choose a tubular electric heater, the position shall be arranged at the upwind side of the HEPA filter and should have fire safety measures. ● blower to select the total air volume air conditioning system and the total resistance value can be cleaned twice early in the calculation efficiency, high efficiency air filters should drag their resistance. ● decontamination clean air conditioning system in addition to the DC systems and set-duty blower system, should be taken to prevent outdoor air pollution through incorporation of new air purifier anti irrigation measures fall within the workshop. ● When the air conditioning system should be designed to purify the rational use of the return air, where the process produces large amounts of harmful substances and local processing can not meet the health requirements, or other hazardous process is not applied back to the wind. Project Quote | TIANJIN | 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!