Discussion on Improvement of Vent Valve of Fluidized Bed Water Conditioning System
In the Unipol fluidized bed polypropylene production process,the circulating gas is cooled in the circulating gas cooler,and the cooling water is powered by the temperature control pump and continuously injected into the cooler to achieve a good heat removal effect and effectively control the circulating temperature.The air existing in the operation of the circulating pump will affect the heat transfer effect and cause strong vibration of the pump and pipeline,so when the temperature control water system is put into use,the cooling water must be vented at the high point of the heat exchanger.The high point discharge valve of the inlet cooling water of the circulating air cooler is about 11 m from the ground,there is no fixed operating platform,and the fixed platform is set up with high investment and low utilization rate.If the end of the exhaust valve is installed with extended pipelines and valves to the ground operation,it will cause ice formation in the pipeline in winter,which is unfavorable to the production operation.The temporary platform or lifting is not only required to handle the corresponding operation ticket.Inspired by the ancient sweep,using the lever principle,a ball valve was modified,the valve handle was changed into a horizontal rod form,both sides were tied to the ground,a person can exhaust on the ground operation.
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