The demand for central air conditioning is becoming more and more. Central air conditioning is widely used in office buildings, commercial buildings, hotels, hospitals, scientific research institutions, etc. However, choosing a good fan coil is the ideal end product of central air conditioning. In order to meet the design selection of different occasions, there are various types of fan coil, including horizontal concealed fan coil (with return air box), horizontal open fan coil, vertical concealed fan coil and vertical open fan coil, card type two outlet fan coil, card type four outlet fan coil and wall-mounted fan coil, etc.
Experts said that the selection of fan coil units is a key issue. It is a common practice in air conditioning system design to select fan coil units according to the maximum cooling load of air conditioning rooms. Its purpose is to ensure the room temperature at peak load. In fact, air conditioning rooms will not operate at peak load most of the time, resulting in excess cooling capacity. Instead, they will switch to fan coil units and operate at low gear to reduce cooling output, thus maintaining the heat balance of the room, the selection of fan coil unit, in addition to the cooling capacity to meet the requirements of the calculation of cooling load, but also to meet the requirements of the matching of sensible heat and latent heat to meet the requirements of the room heat and humidity ratio, the air volume must meet the air supply temperature difference, air change times and air flow organization and other use requirements.
The central air conditioner chooses a good fan coil as the terminal equipment. The indoor quality determines the effect of the air conditioner. At the same time, the cleaning problem also directly affects the use effect of the central air conditioner. There are many dust particles in the atmosphere. Under the action of long-term pumping and return air, the aluminum fins of the fan are covered with dust and dirt. At this time, on the one hand, the heat exchange between frozen water and hot air is affected, causing the air temperature to drop, on the other hand, it also affects the delivery of cold air that has been cooled after heat exchange, resulting in the phenomenon that the room is still not cold when the air conditioner is turned on. Because the central air conditioner host sends 7 degrees of water into the fan coil after cooling, and becomes 15-16 degrees of cold air after exchange in the fan coil, thus reducing the temperature of the room. Therefore, after the central air conditioner is used for a period of time, it is necessary to clean the fan aluminum fins to solve the above drawbacks.
It needs to be cleaned once a year after use to ensure that the next use is in a good state. It is best to have a cardboard box that is not used and is protected from the usual wind and dust outside.
With the improvement of people's requirements for the air environment, the use of fan coils, fans, heat exchangers and other fresh air units has been actively concerned by everyone. In order to ensure the normal function of the device, we are reminded to clean up the dust in time.
The fan coil unit is responsible for the important mission of transferring the cold heat of cold and hot water to the air passing through the fan coil unit. In order to ensure high efficiency heat transfer, the surface of the coil unit must be kept as smooth as possible. However, since the fan coil unit is generally equipped with coarse-efficiency filters with relatively large holes, it is inevitable that dust will pass through the filter and adhere to the pipe or rib surface of the coil unit when it is first used. If it is not cleaned in time, it will reduce the amount of heat exchange between the cold and hot water in the coil and the air flowing out of the coil, so that the heat exchange efficiency of the coil cannot be fully exerted. If there is a lot of dust attached, even part of the air channels between the fins If they are blocked, the air supply volume of the fan coil will be reduced at the same time, and the air conditioning performance will be further reduced.
In addition, the daily maintenance of the main components such as the filter screen, drip tray, and coil cannot be neglected to ensure the normal operation of the device and provide people with fresh air and a comfortable living environment.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time and other procedures are complete.