Magnetic filtration device

摘要

A magnetic filtration device 105 to separate contaminants from a fluid comprises a housing 200 having an inlet 312 and outlet 311, the device also comprises an elongate magnetic core 302 having a plurality of columns (703, 704, Fig. 7) of magnets extending along the length of the core. The columns are arranged lengthwise around a longitudinal axis of the core in alternating north and south polarity. The device includes a passageway 320 which connects first 308 and second 309 elongate chambers in internal fluid communication so that fluid flows from the inlet past the full length of the magnetic core in a first direction, through the passageway and past the full length of the magnetic core in a second direction opposed to the first direction to the outlet. A magnetic field generated by the magnetic core is created in the fluid flow path in the first and second chambers to trap contaminants. A separator flange 305 may be positioned at the passageway to entrap non-ferrous particles. The device can be installed in a central heating system.