This summer, air conditioning is very busy. In the past few days, the nation’s continuing “barbecue model†has kept air-conditioning motors busy. The use of high-frequency air-conditioners has increased the demand for maintenance services that “add some fluorine to air conditionersâ€.
According to preliminary statistics, since the beginning of summer, more than 20 households in Xi'an have asked to add Freon every day, but the air-conditioning is not necessarily caused by the absence of Freon.
“Filter plugging, poor heat dissipation, and abnormal operation of outdoor compressors may all affect the cooling effect of air conditioners. In addition, there are individual cases where some unscrupulous maintenance workers exaggerate small problems when they come to home for repairs. Is caused by the lack of Freon, so that sky-high prices." Xi'an Inspection and Quarantine Bureau inspection personnel said.
So, in the end, how many years does it take for an air conditioner to use Freon? The inspectors said that this problem cannot be generalized. Some air conditioners used four or five years or even more than 10 years for normal cooling. They do not need to add Freon. Some use only one or two years, but they cause problems due to certain reasons. Freon leakage has affected the cooling effect.
When the air-conditioner has insufficient air-conditioning or the evaporator has frosted conditions, but also ruled out the filter is blocked by dust and air intake and blow-off mouth blocked and other reasons, it is necessary to consider that the Freon is missing. Therefore, after discovering that the air-conditioner is not cooling, consumers should first perform a thorough cleaning of the air-conditioner. If the cleaning is invalid, then find a professional to check if there is a leak in the air-conditioning Freon.
If the air conditioner has passed the warranty period, repair the home appliance and choose a good service business and keep the relevant receipts.
Taper Double-Screw Spiral Mixer
Taper double-screw spiral mixer Overview:
Through revolution and rotation of the screw, the materials make complex movements in the cone, which mainly include the four movement types:
â—The screw makes revolution along the walls to make the materials make circumferential movement along the conical walls.
â—The screw makes rotation to make the materials rise along the screw from the conical bottom.
â—The screw makes revolution and rotation to make some of the materials absorbed into the cylindrical surface of the screw. Under the centrifugal force produced due to rotation of the screw, some of the materials in the cylindrical surface of the screw are discharged radially towards the cone.
â—The rising materials fall due to their gravity. The four movements produce convection, shearing and dispersion in the mixer so as to realize the purpose of fast and even mixing.
Application:
It is widely used for mixing, reaction, drying and cooling of powders and powders (solid-solid), powders and liquids (solid-liquid) and liquids and liquids (liquid0liquid) in such industries as chemical industry, medicine, pesticide, dye, petroleum, metallurgy, building materials, etc.
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