working principle of dehumidifierjiu0 edited on2017-05-22 09:43:19 113 views
Dehumidifier has many operating principles, but most of them are applied in industrial dehumidifier. But no matter what kind of dehumidifier, the use of the principle of physics is the same: the higher the temperature in the air saturated water content is higher, to air cooling, air saturated water content decreased, the excess water vapor condenses into water, so as to achieve the purpose of dehumidification.
At present, there are three types of household dehumidifier sold on the market: compression type, hot stone type and mixed type. Among them, the mixing type at the same time with the compressor and hot stone two ways of dehumidification, intelligent choice of use, so mainly for the lower compression and hot stone:
1, compression type
The compression type dehumidifier is the mainstream form of the traditional domestic dehumidifier, and occupies the overwhelming majority in the domestic household product. Compression dehumidifier is the principle of:
Through the snow in the evaporator compressor drive (cooling tube) and the condenser (heat pipe) cycle, caused by the temperature difference between them; the damp air through the fan inlet into the evaporator, water vapor in the air condenses into cold water into the water storage tank; the air is discharged through the condenser, reach the dehumidifying effect.
This principle is quite close to the air conditioning, and this is the principle of air-conditioning dehumidification. High efficiency compressor dehumidification, less power consumption, but when the indoor temperature is low, because the air temperature is low, there may be frozen into the cooling tube, but the impact of the dehumidification efficiency; and when the temperature is too high, the compressor may appear excessive pressure, also affect the dehumidification efficiency. In addition, when the relative humidity of the air is not high, the efficiency of compression type dehumidifier will be substantially reduced, so the environment temperature and humidity are the factors limiting the maximum compression efficiency of dehumidifier, although most indoor can guarantee the ten, more than 20 degrees of room temperature, but the room temperature is below 20 degrees, the efficiency of compression type dehumidifier will be worse than the nominal data has fallen sharply.
2, hot stone type
Hot stone machine is a new type of desiccant dehumidifier in recent years began to rise, the principle is the use of natural zeolite materials such as hygroscopic property, water in the air absorption, then the heater heating hot stone (zeolite) to absorb and discharge the water, in a heat exchanger is condensed into water, to achieve the purpose of dehumidification, a large dehumidification box means. Compared to the compressor dehumidification machine after cooling temperature, hot stone type is used in heating and then condensation, the temperature and the humidity of the environment had little effect, even in low temperature and low humidity environment also can reach close to the nominal dehumidification capacity level. When heating is needed, the energy consumption of the thermal stone dehumidifier is obviously higher than that of the compression type, and the water absorption capacity is limited by the water storage capacity of the hot stone, and the moisture absorption capacity of the utility model is not superior to the compressed product. But also because the structure is relatively simple, the machine size and weight are significantly smaller than compressor products, and because it does not require mechanical operation, its noise is significantly lower than compression products.
Heat exchanger is the key component of dehumidifier
The single row type heat exchanger dehumidifier uses the aluminum tube to make, the aluminium tube is exposed, the water drops can not stop on the aluminum tube, and then drops into the water tank, so the dehumidifier easily causes " fast water outlet, good dehumidifying" illusion, but the machine stops running, and the water drops soon.
The fin type heat exchanger dehumidifier adopts the arrangement of the aluminum sheet, the copper tube is connected to make, the surface of the aluminum sheet is big, the water drops will be filled with the aluminum sheet, so it will cause " slow water" when starting. Dehumidifying illusion, but after the outage, the water will continue for a period of time.
published on：20170521 07:34:42 guangzhou
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