What is the working principle of the primary effect filter? What are the performance indicators of the central air conditioning primary filter?

Primary filterWhat is the working principle of Central Air ConditioningPrimary filterWhat are the performance indicators of the

First, the working principle of the primary filter

The main working principle of the primary filter is that in the normal operation of the equipment, there is an air inlet at the front end, which will inhale all the surrounding air, and then enter the first gate inside the filter, the air filter cylinder, which will initially remove all the large particles of solids in the air after it is cleaned up. Then it will enter into its second gate - air filter filtration, after eliminating some large particles of solids, the air is once again purified, many of the fine particles, dust and bacteria, etc., to remove all the filter clean, in this way, can ensure that the air into the cylinder is completely clean.

Second, the internal maintenance of the primary filter

1, the front filter maintenance (generally chassis back cover). Pre-filter to clean up 1-2 times a month is appropriate, remove the filter, pat or blow clean with a hairdryer, or even can be washed with water, shake dry and then loaded into the panel!

2, formaldehyde filter maintenance. Formaldehyde filter maintenance is more special, it does not need to clean up, the best maintenance method is to regularly get the sun to the sun, can make the formaldehyde filter filter function always maintain the best state.

3, activated carbon filter maintenance. Activated carbon filter this is the need for regular replacement, belongs to the disposable consumer goods. If you can also regularly get the sun under the sun, you can properly extend its replacement time.

4, dusting inside the chassis. Air purifier work for a long time, the chassis will inevitably invade some dust, cleanup is available vacuum cleaner, hair dryer and other tools for dust removal. Note that before cleaning inside the machine, please be sure to cut off the power supply!

Third, the 3 major performance indicators of air filters:

1、Filtration precision

Refers to the maximum diameter of the impurity particles allowed to pass. The key to the filtration precision is the filter element, and different filter elements can be selected according to the needs of the components behind to achieve the corresponding filtration precision.

2, flow characteristics

Refers to a certain inlet pressure, through the filter air flow and the relationship between the pressure drop between the two ends of the filter curve, the actual use of the best in the pressure loss of less than 0.03MPa within the scope of selection. In the air filter, the main influence on the flow characteristics is the body and cartridge.

3. Efficiency of water separation

Refers to the ratio of the separated water to the water contained in the air inlet, the general requirements of the air filter's water separation efficiency is not less than 80%. The main influence on the water separation efficiency is the deflector plate.

Fourth, the benefits of changing the air filter diligently

1, each exhaust fan filter box requirements every six months must be turned over to view the middle and high-efficiency filter frame to view the middle and high efficiency filter frame with or without damage, and the middle effect and the box for cleaning and scrubbing, the middle effect of the net cleaning work standards have strict rules.

2. Replacement of various equipment in accordance with the situation of damage, with a maximum service life of no more than 2 years.

3, if the installation of high-efficiency filters, about every six months to open the chassis to view a view of the primary effect of the mesh frame together with the visual inspection of high-efficiency filters with or without damage, aging, effectiveness and other phenomena.

4, in the replacement of high-efficiency filters, pay attention to high efficiency dust saturation based on the replacement, replacement requirements must be strictly in accordance with the specifications of the production plant, and the maximum service life of high-efficiency filters shall not exceed 5 years.

5, each time the replacement of medium-efficiency, high-efficiency, clean chassis and daily observation, probably fill out the specific work records in a timely manner, and file for inspection.

6, spare replacement of the intermediate and preliminary air filters storage methods are also studied, should be packed in a plastic bag and sealed, placed in a dry special point, can not be stacked or mixed with other items, to prevent deformation and other questions. The model parameters of coarse filter (concave and convex mesh), preliminary filter, medium-effect filter and high-efficiency filter of each air intake unit are subject to the filing table.

Extended Reading:

Intermediate and middle efficiency filter use occasions

1, coarse filter is mainly used for purification of air-conditioning system for the pre-filter at the inlet of fresh air, retaining large particles in the atmosphere. Filtering object is greater than 5μm suspended particles and more than 10μm sedimentation particles and a variety of foreign matter, to prevent it from entering the system. The filter material is generally spray adhesive cotton, polyester non-woven fabric, polypropylene fiber. Its filtration efficiency is based on the filtration of ≥5μm particles.

2、Medium-efficiency air filter has a pre-filter in front of it to retain large particle size particles, it can be used as a general air-conditioning system after the filter and purification of air-conditioning systems, high-efficiency.