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阐述冻堵的原因、危害及影响因素,以某高压A调压站为例,分析水合物形成的可能性,提出调压站冻堵的预防措施(气源的气质控制,安装冻堵预报警装置,增设凝水缸,强化吹扫)和解决措施(利用疏通工具,加热保温,添加抑制剂,无损解冻,降压控制)。
Describe the causes, hazards and influencing factors of freeze blockage. Taking a high pressure A pressure regulating station as an example, the possibility of hydrate formation is analyzed. Preventive measures of freezing blockage of the pressure regulating station are put forward (air quality control, Device, additional condensate tank, enhanced purge) and solution (using dredging tools, heat insulation, add inhibitors, non-destructive thawing, step-down control).