Research on the Synergy Effect of Water Mist Containing Additives and Flame-Retardant System on the Syngas Explosion Inhibition
摘要
The explosion resistance/inhibition apparatus is presented in Fig. 7.1. The detailed instruction had been stated in the previous experiment work. Here, only the explosion-inhibition system (Pressure spray system) and flame-retardant system (Metal wire mesh system) were introduced. The pressure spray system included a stainless steel water storage container, a solenoid valve, a check valve and a pressure nozzle. The deionized water was loaded into a storage tank and the additive was dissolved into it. The inhibition condition was adjusted by changing the additive condition (its type and mass fraction) and the spray pressure. By controlling the solenoid valve, the spray moment and duration were adjusted, thereby changing the mist concentration at the upper part of flame-retardant system. The flame-retardant system with square cross-section (100 mm × 100 mm) was mainly composed of two layer pressure plates with 3 mm thickness, multi layer wire mesh and four supporting rods. The wire mesh was compressed inside two pressure plates by adjusting nut height. The flame-retardant system was installed on the supporting rod with a determined position (H = 650 mm). To guarantee the fixed compression strength of wire mesh under the same working condition, four equally high metal gaskets were installed between the two pressure plates.