2. The protection zone for gas and liquid fires with explosion hazards should be chosen as the inerting plan concentration; the protection zone for gas, liquid fires and solid fires without explosion hazards should be chosen for the concentration of the rescue plan.
3. When several combustibles coexist or are mixed, the concentration of the salvaging plan or the concentration of the inerting plan shall be determined as the maximum salvation concentration or the inerted plan concentration. Four, two or more protection zones shall be used to determine the combined distribution system. At that time, a protected area protected by a combined distribution system should not exceed eight.
5. The storage amount of the activator in the combined distribution system shall be determined according to the largest protected area.
6. The storage capacity of the salvage system resuscitation agent shall be the sum of the planned amount of the protected area, the remaining amount of the salvage agent in the storage container, and the remaining amount of the salvage agent in the pipe network.
7. The storage device of the rescue system cannot be refilled and restored within 72 hours. The amount should be set at 100% of the original storage capacity of the system.
8, to save the system's planned temperature. Should use 20 °C.
9. The storage container on the same header shall have the same specifications, charging pressure and filling volume.
10. In the same protection zone, when two or three casing networks are planned, the headers can be set separately and the system startup device must be shared. The flow rate of the nozzles on each pipe network is planned according to the same salvaging plan concentration and the same discharge time.
11. The pipe network should not use four-way pipe fittings for diversion.
12. The height and radius of protection of the nozzles shall comply with the following rules:
A. The maximum protection height should not exceed 6.5 meters;
B, the minimum protection height should not be less than 0.3 meters;
C. When the nozzle installation height is less than 1.5 meters, the protection radius should not exceed 4.5 meters;
D. When the nozzle installation height is not less than 1.5, the protection radius should not exceed 7.5 meters.
13. The nozzle should be installed close to the top of the protection area. The maximum distance from the top surface should not exceed 10 units.
14. When there are more than one set of prefabricated rescue system in the same protected area, it is necessary to be able to launch at the same time. The response time difference of its response shall not be greater than 2S.
15. The protection volume of a single hot aerosol prefabricated rescue system device should not exceed 160 cubic meters; when multiple sets are installed, the distance between them should not exceed 10 meters.
16. Select the protective zone of the hot aerosol prefabricated rescue system. Its height should not exceed 6.0 meters.
17. The nozzles of the hot aerosol prefabricated rescue system should be higher than 2.0 meters above the protected area.
Engineering wood is in normal wood as raw material, using the bionics principle, through to the ordinary wood, mimosa various modified chemical processing production of a more superior performance of the whole wooden new decorative material. Compared with natural materials, it is almost not bent, cracked or twisted.Its density can be artificially controlled, stable product performance is good, in the process of machining, it does not exist when the natural wood processing of waste and losses, can increase the wood comprehensive utilization to 86% above.Engineering wood is not solid wood, but synthetic compound products.Engineering Wood can be widely used in furniture, decoration, floor, , doors and Windows, sports materials, and other fields.
Luli Group Co.,Ltd is a specialized manufacturer and exporter for wood products with more than 20 years experiences . And produces high quality Engineering wood but low price Engineering wood.
The details of engineering wood
1.Size:620/640MM*2500/1270*2520MM,630-850*1270MM ETC.
2.Thickness:15-100MM/0.1-0.6MM
3.Species:Walnut,Teak,Zebra,White/Red oak,Sapele,ETC
Engineering wood
Engineering Wood,Engineering Teak Wood,Layer Engineered Wood Floors,Synthetic Engineering Wood
Luli Group Co.,Ltd. , https://www.cnluli.com