| 摘要 |
PURPOSE:To prevent the intrusion of dust into a cooling air due to the trouble of an air cleaner by fitting a contact sensing pressure difference lower than initial pressure loss to a differential pressure gage mounted to the air cleaner besides a contact sensing the predetermined quantity of dust collected. CONSTITUTION:The contact (b) functioning by pressure difference lower than the initial pressure loss of the air cleaner 2 is attached to the differential pressure gage 3 for detecting the predetermined quantity of dust collected by mounting pressure introducing pipes 4, 5 at the inlet side and outlet side of the air cleaner 2 besides the contact a working by sensing the predetermined quantity of dust collected. Accordingly, the fracture of the air cleaner 2 can be detected from pressure difference at the inlet side and the outlet side, and the intrusion of dust into the cooling air can be prevented. |
