What kind of air conditioner is Qixing?

Sevenstars is a seven-star air conditioner. Qixing air conditioner can be said to be an old domestic brand. Its refrigeration effect is also very good, the cost performance is relatively high, the appearance is beautiful, and there is basically no noise when it is used.

Air conditioning, that is, air conditioner, refers to the equipment that manually adjusts and controls the temperature, humidity, cleanliness, flow rate and other parameters of ambient air in buildings/structures. Most refrigerants evaporate or condense under the action of compressor, which causes the evaporation or condensation of surrounding air, thus changing the temperature and humidity. Around 1000 BC, Persians had invented an ancient air conditioning system, which used wind poles installed on the roof to blow cold water into the room from the outside to make people feel cool indoors.

/kloc-in the 9th century, Michael Faraday, a British scientist and inventor, discovered that compressing and liquefying a certain gas could freeze the air. This phenomenon appeared when liquid ammonia evaporated, and his idea was still theoretical at that time. 1842, Florida doctor John Gori built a new building with central air conditioning. AlfredWolff, an engineer in hoboken, New Jersey, helped design this brand-new air conditioning system and moved this technology from textile mills to commercial buildings. He is regarded as one of the pioneers in reducing the temperature of the working environment.