Central air conditioning fan coil occupation development status and selection

Because the fan coil system has the advantages of easy regulation, easy installation and low cost, its application scope continues to expand, and the product type is also increasing. When the traditional large-scale centralized air conditioning and split home air conditioning can not meet the requirements of modern civilization on the level of living environment and living management, the concept of household central air conditioning came into being, and the fan coil unit played an indispensable role in it. The fan coil in China has experienced several different changing processes. At the beginning, the understanding of fan coil units stayed on the basis of the primary satisfaction of air volume requirements. That as long as the air volume is large enough to satisfy the requirements, it is a good fan coil. Under the guidance of this concept, the primary feature of the fan coil unit produced at that time is that the air volume is overspent, which brings about large noise and large energy consumption, and the unit power cooling capacity of the fan coil unit produced at that time is only about 40W. Due to the large noise, the situation at that time is that people have to endure the annoying noise while enjoying the cool breeze brought by the air conditioning. In order to solve the above problems, the state began to modify the product specifications of fan coil units. In recent years, China's fan coil manufacturing industry has developed rapidly, and the annual output has surged from thousands of units in the early 1980s to more than tens of thousands of units now, but the product function has long roamed in the level of foreign 1970s. The prospect of rapid growth at this low level is not optimistic. In the mid-1980s, foreign fan coil manufacturing industries represented by Trane, York, Carrier and other companies in the United States have successively completed the upgrading of products and launched a new generation of products. At that time, China's air conditioning industry is intoxicated with domestic fan coil in the cold capacity, noise and other isolated parameters close to foreign products, ignoring the real gap in the comprehensive function and use effect, so that this product replacement failed to cause any repercussions in China's air conditioning industry. In fact, the new generation of foreign fan coils should be ahead of our products in terms of function, variety and air conditioning.

Fan coil is the end product of central air conditioning ambition, fan coil is widely used in hotels, office buildings, hospitals, commercial and residential, scientific research institutions. It is understood that in order to satisfy the planning and selection of different occasions, there are many types of fan coil, horizontal concealed (with bellows) fan coil, horizontal open-mounted fan coil, vertical concealed fan coil, vertical open-mounted fan coil, cassette two-outlet fan coil, cassette four-outlet fan coil and wall-mounted fan coil.

Experts say the selection of fan coils is a key issue. The selection of fan coils according to the cooling load of the air-conditioned room is a common practice in the planning of the air conditioning system, whose intention is to ensure the room temperature during the peak load. In fact, most of the time of operation of the air-conditioned room will not be at the peak load, so that the cooling capacity is excess, and switch to the medium and low operation to reduce the cold output, so as to maintain the thermal balance of the room. The selection of fan coil unit, in addition to satisfying the cooling capacity to calculate the cooling load requirements, but also to satisfy the matching of its sensible heat and latent heat to meet the requirements of the room heat and humidity ratio; The air volume must meet the requirements of supply air temperature difference, air exchange times and air flow organization.

Fan coil as the central air conditioning end equipment, its quality determines the indoor air conditioning effect. At the same time, the cleaning problem also directly affects the use of the central air conditioning effect. There are many dust particles in the atmosphere. Under the long-term pumping and return air effect, the aluminum fins of the fan are filled with dust and dirt. On the one hand, the heat exchange between the frozen water and the hot air is affected, and the air temperature is affected. On the other hand, it also affects the delivery of cold air that has cooled down after heat exchange, forming the phenomenon that the air conditioner is opened and the room is still not cold. Because the central air conditioning host after refrigeration 7 degrees of water into the fan coil, in the fan coil tube exchange becomes 15- 16 degrees of cool air, so that the room temperature drops. Therefore, after the central air conditioner has been used for a period of time, it is necessary to clean the aluminum fins of the fan to solve the above disadvantages.

At that time, the share of traditional commercial center air conditioning fan coil market tended to be stable, and enterprises wanted to pioneer a new situation in the meantime, it was very difficult. In the face of fierce competition in shopping malls, many central air conditioning fan coil enterprises are numerous pioneering subdivisions in shopping malls, avoiding direct confrontation with traditional counterparts, and the track traffic category has become the blue ocean of shopping malls for many central air conditioning enterprises to compete.

China's economy has entered a period of rapid growth, and the government has vigorously carried out locus transportation construction to meet the travel needs of citizens. The huge amount of construction has brought huge business opportunities to related enterprises, and the central air conditioning as a support for trajectory traffic has huge room for increase, causing domestic and foreign central air conditioning brands to enter the market first.

Under the guidance of the national strategy of "energy conservation and emission reduction" and "sustainable development", domestic brands have become the provider of the government's intention plan with their increasingly perfect skill strength and continuous improvement of service talent, which has further promoted national brands to gradually grasp the dominant power.

Now, the battle for the central air-conditioning market of first-line air-conditioning enterprises is intensifying, Gree, the United States and other air-conditioning giants play the strength of the leading enterprises in the industry, work hard in the development of central air-conditioning skills, equipment manufacturing, planning and planning, and actively devote themselves to the development of China's central air-conditioning fan coil career, and strive to eat the huge market cake of track traffic.

In view of the particularity of trajectory traffic, many central air conditioning brands organically combine a variety of products, and through experimental testing, the planned solution plan provides a one-stop solution plan for trajectory stations. Individual stations no longer need to make repeated acquisitions for different central air conditioning fan coil products, reducing workload and acquisition costs. In view of the particularity of the trajectory, the central air conditioning brand in the trajectory now provides a solution plan in all aspects.