Wet Filters

Wet (or viscous) filter uses adhesive, in which particles of dust are being spent on strike. It also allows use of densely Packed layers of viscous coating, metal partitions, screens, winding passages, copper wire, and glass wool inserted into the path of the air. Air is divided into small streams that constantly change the direction and strength of the heavier particles of dirt against viscous coating surface, where they are held.

Three main types of wet (or viscous) air filters, replacement, cleaned manually or automatically cleared.

Wet type substitution. Glass-wool air filter viscous type of replacement cells. Glass wool, being stainless nonabsorbing and retains its density and leaves a sticky glue to freely collect and keep dirt and dust. This type of filter is amenable to both small and large installations. In box 12 filters weighs 37 pounds. After replacing the filter was completed, dirty filters can be supplied in the original packaging and removed from the premises.

Manually clean type. Manually clean the type usually comes as standard cell with a steel frame, containing the filter media. The cell is placed in the cell of the frame ( see Fig. 3-9), using a felt lining to prevent air leakage past the camera. As is usual practice, should be cleaned every eight weeks. This is done simply by using a push-pull connector so that the filter sections can be removed from the frame, immersed in an aqueous solution of washing soda or cleaning compound, let it dry, and then immersed in charge oil drain to remove excess oil, and then replace the filter.

Automatic viscous filters. Automatic self-purification filter type and uses the same principle glue dust as a textbook and replacement of the types, but the removal of the accumulated dirt from the filter media is fully automatic. Self-purification of the type can be divided into two different systems: dive diversity and leaching type.

Immersion-type air filter (Fig. 3-10) makes use of an endless belt, which rotates filter material and passes it through the oil bath, washing dirt. Dirt, being heavier than oil settles on the bottom of in special containers, which are removed and cleaned from time to time. The normal speed of filtering 1.5 to 3. every 12 minutes of This device is particularly suited for continuous operation. Sludge can be removed and oil that have been added or modified without stopping the machine.

Flushing type, built cells in the form of block lying on the shelves and the United metal aprons. Dirt, catching cells are flushed down in the sump flooding pipes that pass back and forth for the clean air side of the cell. Aprons catch the heavier particles of dust, before they get to the cells so that the cells are more effective. This type does not wash wells, while the system is in operation. In many cases, duplicate units are provided so that one device may be merged while the other carries the full load. Some flushing mechanisms interlocked with the fan circuit, especially where one unit is used, so that tides can take place if the fan is switched off. If air can pass through the filter, while he blushed, oil will be transported together with air.

Acylindrical absorber (Fig. 3-11) can be used to control odour problems, forcing air through two perforated metal enclosing walls ring bed of activated charcoal. Amotor-driven fan draws the polluted air through the charcoal-filled container and recirculates the clean smell of the air after places to be cleansed.

On the wall of the air purifier shown in Fig. 3-12 equipped with a washable dust filter and the centrifugal blower. Air cleaners of this type are ideal for toilets, utility rooms, common areas for relaxation and similar odorproblem areas.

In residential air conditioners, however, the block of filters provide the necessary protection from dust, especially because they are produced in a wide variety of types and sizes. Where lint, in the dry state prevails dry filter is preferred because it lint-holding capacity. Disposable filters are used more frequently, where the cleaning process must be eliminated.