Principle and maintenance of dehumidifier

Principle and maintenance of dehumidifier

Dehumidifier is widely used in most areas of South China. Especially in the home, office, archives, library, research room, computer room, warehouse, storage room and other requirements to maintain a certain degree of dryness of the environment have configuration.

The working principle of dehumidifier is similar to that of refrigerator. After the compressor of the dehumidifier is powered on, the moisture in the air is gathered on the coil of the evaporator through the exposed evaporator (the refrigeration of the refrigerator is to convert the "cold" on the evaporator to the "box" of the refrigerator). While the compressor is cooling, the fan always blows air to the evaporator, so that the evaporator can not frost, And the frost that will just be formed is immediately turned into water drops by the fan and flows to the sink. This cycle, indoor air moisture will be dehumidifier "income" water tank, so as to achieve the purpose of dehumidification. Once the water from the evaporator to the sink is full, the dehumidifier will stop and give an alarm. The full water indicator will turn on and tell you to pour the water in time. The use of dehumidifier is generally 24 hours a day throughout the year. In the southern spring (Meiyu season), 1p power household dehumidifier should clean the sink twice a day. Pour water once in the morning and once after work in the afternoon. In other periods, just pour it once in the morning. For the high-power industrial dehumidifier, the drainage method needs to be connected to the floor drain (ditch) to directly discharge the dehumidified water to the outside. Just adjust the humidity switch of the dehumidifier. When the indoor air humidity reaches the service condition of the instrument, the dehumidifier will stop automatically. It will turn on automatically at the right time.

The unit of dehumidification capacity of dehumidifier is L / D (, i.e. liter / day). The dehumidification capacity varies from 20 l to 480 L / d. The selection should be based on the appropriate size of the environment space. At the same time, with the increase of power, the appearance volume of dehumidifier increases correspondingly, and the noise increases. So in the selection of dehumidifier should also consider the super quiet model. To avoid noise.

The working environment of the dehumidifier should be clean and dust-free, the evaporator should be kept clean, the air filter dust screen should be cleaned in time, and the whole machine shell should be clean, and some lubricating oil should be added to the bearings at both ends of the fan motor regularly, so that the dehumidifier can always work in a good state, so as to extend the service life of the machine.

      Dehumidifier whether imported or domestic machine fan motor is the fault prone point. The trouble is that the motor doesn't run or the abnormal noise is caused by the wear of the copper shaft. The main solution is to replace it. Various types of dehumidifier fans are not the same, so the size of the fan, the length of the fan blade, and the installation position, etc., should be considered.

If there is no influence of external force or human factors, the compressor of dehumidifier will not have fault. If there is fault or abnormal start, check the starter and over-current protector, which can be generally solved. The phenomenon of fluorine leakage in the pipeline of the whole machine is also rare. Some dehumidifiers are also equipped with the device of "negative ion generator", which can produce negative ions and purify the indoor air at the same time of dehumidification, which mainly plays a "selling point" effect. If there is a fault, it can be removed without affecting the use of the host. Because the main function of dehumidifier is dehumidification.