Ammonia Refrigeration System Safety Analysis And Engineering Application Research

At present, the domestic stakeholders ammonia refrigeration enterprises on ammonia refrigeration system safety accidents happen frequently, caused the attention of people from all walks of life, create a "talk about ammonia color change" phenomenon, to the state council and the relevant state departments have been given the very high attention, and take the necessary measures to rectify for ammonia refrigeration industry transformation. In view of this, this article attempts to introduce HACCP (Hazard Analysis and Critical Control Point) principle and combined with fault tree method of ammonia refrigeration system safety Hazard Analysis, to determine the system safety Hazard Critical Control points (refrigeration system, compressor, valves, pressure vessels, pressure piping, safety facilities, workers and management of ammonia refrigeration system), and clear the important degree of the key Control points. Through theoretical analysis of key hazard control points one by one, and through the nearly two years of ammonia refrigeration system safety accident statistics analysis to verify the validity and rationality of the key control points, and through to the hot ammonia defrosting accident are analyzed in theory and relevant calculation, specific points out that due to the ammonia refrigeration system safety hazard critical control points (homework personnel peccancy operation) didn’t get the effective control of ammonia refrigeration system safety accidents and serious consequences. Then put forward by the principle of HACCP and the accident tree down the ammonia refrigeration system safety hazard critical control points of safety overhaul transformation method, around the ammonia refrigeration system safety hazard critical control points to upgrade, and through a practical ammonia refrigeration system security project details, proved the HACCP principle combined with fault tree method is applied to ammonia refrigeration system safety hazard control and wade ammonia refrigeration enterprises ammonia refrigeration system feasibility and practicability of the safety measures. To wade ammonia refrigeration system of ammonia refrigeration enterprises safety rectification can on this basis, around the hazard of critical control points on the original refrigeration system to implement security transformation, makes the whole industry has taken on a entirely newlook.