Cleaning Method Of Air Filter

Regulations on cleaning of primary and medium efficiency filters for air filtration. The following installation parts are included:

1.1 HVAC system position: refers to the primary and medium efficiency filters in the air purification system in the clean area of the fine baking bag.

1.2 spray drying intake system location: refers to the medicine spray drying tower, feed additive spray drying tower air intake system installed in the initial and medium efficiency filter.

1.3 air flow pulverizing system: refers to the medium efficiency filter of air inlet filtration in the medical air flow pulverizing system.

1.4 compressed air system: refers to the primary and medium efficiency filter of sterile air for fermentation and compressed air compressor for instrument.

Procedure

1. Cleaning cycle

1.1 the primary and medium efficiency filters for air filtration must be replaced and cleaned under the following conditions.

1.1.1 under the rated air volume conditions, the final resistance of the original and medium efficiency filter is greater than 1.5-2 times of the initial resistance.

1.1.2 if the pressure difference monitoring indication of filter is not installed, the accumulated service time is calculated under the rated air volume condition. The initial effect is 1-2 months to be replaced and cleaned, and the medium effect is 2-3 months.

Cleaning times

The dust collection effect of the filter is related to the cleaning times. According to the influence of primary and medium efficiency filters on the air volume and high efficiency filter of different installation parts, determine the different longest cleaning times (the longest cleaning times refers to elimination).

Cleaning agent, detergent

Detergent - drinking water.

Detergent - detergent.

Cleaning method

Remove the primary and medium efficiency air filters to be cleaned, take them to the outside, and tap gently to remove the dust.

The cleaning of primary and medium efficiency filters shall be carried out indoors to reduce the influence of external dust. The fine baking bag filter is cleaned in the fine baking bag bathroom. Filter cleaning for feed spray drying tower is carried out in spray drying place. The compressed air filter cleaning is carried out in the kinetic energy workshop.

At the cleaning place of filter, connect the water pipe of flushing filter with drinking water pipe. Filter (if the primary and medium efficiency filters are bag type, the filter bag should be opened first to ensure that the air inlet surface of the filter bag is completely exposed and easy to clean.) Flat on the floor of the room (the bathroom floor is required to be clean and clean without falling off, and the filter can be soaked with water and the cleaning water can be discharged.) Or soak in a pool and prepare to soak in detergent.