EARLY RAIN EXCLUSION DEVICE

摘要

PURPOSE: An initial rainwater exclusion device is provided to efficiently remove nonpoint pollutants from initial rainwater and to efficiently filter rainwater using a filter formed in a filtration unit. CONSTITUTION: An initial rainwater exclusion device(1) comprises a main body housing(10), a filtration unit(20), a housing space(30), and a discharge passage(40). The main body housing has an inspection hole, an inlet pipe(14), and a supply pipe(15). The inspection hole has a cover. Rainwater flows into the inlet pipe. The supply pipe has a first opening and closing valve(V1). The filtration unit is formed inside the main body housing and filters the rainwater flowing through the inlet pipe. The housing space is formed between the filtration unit and the supply pipe and supplies the filtered rainwater to the discharge passage. The discharge passage has a second opening and closing valve(V2). The second opening and closing valve allows the rainwater passing through the filtration unit to be discharged to the outside.