two traps when comparing dehumidification of dehumidifierjiu0 edited on2017-05-30 03:15:37 91 views
two traps when comparing dehumidification of dehumidifier
More and more families and companies, in order to spend the wet rainy season, choose to buy a dehumidifier.
Because the dehumidifier solves the problem of indoor tide, clothes dry, mouldy taste brought by humid weather, and solves the health problem caused by excessive moisture.
With the increase of the demand of Dehumidifier, there are more and more Dehumidifier brands and varieties in the market. How to select the most suitable dehumidifier in many Dehumidifier has become the most concerned and entangled problem of many users.
The most intuitive standard of Dehumidifier is dehumidification. This is also the choice of dehumidifier most important parameters. Each Dehumidifier brand, has its own dehumidification, such as the maximum moisture removal, maximum daily water removal, daily dehumidification, maximum moisture removal per hour, nominal dehumidification, and standard dehumidification.
In the mandatory standard of Dehumidifier ( GB / t 19,411 - 2003 ), it is pointed out that under " two / six conditions" ( 27 ℃ / 60 % RH ), the dehumidification quantity measured is the true standard dehumidification quantity.
Refers to the outgoing / water volume measured in a sealed environment with temperature of 27 ℃ and humidity 60 %, and the standard unit is: kg / h or l / h.
At present, the mainstream of the Dehumidifier industry, in addition to " two / six conditions ", and" 38 conditions ".
This condition is the European standard, that is, the output / water quantity of 24 / small / when the temperature is 30 ℃ and the humidity is 80 %, the standard unit is: kg / d or l / d.
Users must know that the comparison of the amount of water removal under different conditions is not of any reference value.
Because, the same machine under " two / six conditions" the amount of water measured under " two / six conditions" must be smaller than the amount of water measured under " 38 conditions. ".
In other words, the larger the humidity temperature, the larger the dehumidification capacity tested.
Two errors and traps of the maximum dehumidification quantity.
1. " what is the maximum moisture removal rate per day of Dehumidifier?"
This dehumidification capacity, without environmental conditions, can not be used as a precise reference.
Because some businesses will be tested under the standard conditions of humidity and temperature, such as 100 % humidity, 35 ℃ temperature, to gain the advantage of propaganda.
The dehumidification rate thus measured is often much smaller than the dehumidification amount actually used by the user.
And the compressor has a certain range of work, such as 5 - 38 ℃, high temperature can not work.
The dehumidifier also has a certain load degree to the environment humidity. High humidity can cause the machine to run. Therefore, excessive temperature and humidity, the measured moisture content, there is no practical use of value in operation.
2. calculation formula of the HUMIDITY REMOVAL dehumidification quantity: w = v × ρ × ( x2 - x1 ) ÷ 1000 × 1.2 = * * kg / h
W = required moisture removal ( kg / h ), v = place volume, ρ = air density ( kg / m3 ), x2 = moisture content of the dehumidification air, x1 = air humidity after dehumidification, 1.2 = safety factor ( loss )
Do you understand this calculation method? It doesn't matter if you don't understand, because it is not a standard measure of dehumidification.
To know, the moisture removal is measured, not calculated. The dehumidification capacity of the dehumidifier can only be measured under the standard conditions, and cannot be calculated simply by a series of calculations.
Because it affects the dehumidification capacity of the dehumidifier, it may be the performance of the compressor and the fan, the size of the area of the two, and even the area size of the air outlet and air inlet.
The design of the whole body of the dehumidifier and the selection of the accessories are all the factors that determine the dehumidification capacity of the dehumidifier.
In summary, 1. the dehumidification quantity of the dehumidifier must be marked. 2. do not take the numerical size of the dehumidification quantity directly to compare and purchase.
published on：20170530 03:15:37 guangzhou