How To Choose The Dehumidifier In The Underground Warehouse

The underground warehouse is built in the underground or in the mountain, surrounded by water vapor emitted by groundwater or moist rock layers. Groundwater or water vapor easily invades the inside of the tunnel and is not easy to discharge. Therefore, the damp problem of the cavern is one of the most important problems to be solved in the daily management of the underground warehouse.


So, How to choose a dehumidifier reasonably becomes a top priority! Ningbo Deye Daily Electrical Appliance Technology Co., Ltd. has carefully analyzed for many years through long-term research and years of dehumidifier sales experience. Here are a few suggestions for you to choose from:


1  The first step of the underground warehouse moisture-proof dehumidification work is to analyze the cause of its moisture formation. The reason for the dampness inside the underground warehouse generally has some obvious geographical reasons, and we need to analyze it from its laws. Only by mastering the means of wet source analysis and understanding the causes of moisture inside the underground warehouse and the influence range of various factors can we take effective measures to prevent moisture and dehumidification.


So far, a large number of experimental work and rich data have summarized the reasons for the dampness of underground warehouses. These reasons are mainly the leakage of the wall and the moisture brought in by the outside humid air, and the influence of the construction residual water on the initial stage of the underground warehouse. And internal process dehumidification and personnel dehumidification.


2  Leakage of wall in warehouse wall Because underground engineering is a space excavated in the underground rock (soil) layer, it is surrounded by groundwater and mountain fissure water, which passes through the weak link of the envelope structure (hole wall) with water vapor. Infiltration (gas phase), water penetration (liquid phase), dripping, and line flow enter the interior of the cave, which is one of the important reasons for the wetness of underground engineering.


The causes of leakage of the cave wall are generally the pore water, the groundwater level (pressure water), the weak link of the envelope structure, and the penetration of concrete capillary. The pore water and groundwater level are the external conditions that affect the formation of leakage water; the weak link of the envelope structure and the concrete capillary are the internal conditions for the formation of leakage water.


Different external causes (shallow water, groundwater level) have different levels of leakage inside the cave caused by the same form of building structure, building materials and construction quality; when under the same external conditions, the envelope structure When the form, construction quality, waterproof and moisture-proof layer practices and construction materials used are different, the degree of leakage that may occur inside the cavern will be very different.


Therefore, when comprehensively examining the causes of engineering moisture, the above internal and external factors should be considered. However, the pore water and groundwater level are external factors, which are relatively minor factors for the completed projects. The weak link of the envelope structure and the concrete capillary are the main causes of leakage. Due to the boundary conditions (wet source), use time, moisture transfer factors, structural form and other factors, the wall moisture dissipation is a certain law. It is extremely important to reveal and recognize these laws to prevent moisture and dehumidification. The basis of the machine.


From the research results of modern dehumidification technology, the following conclusions can be drawn:


• For the underground warehouse just developed, due to the influence of residual moisture in the construction, the humidity in the warehouse is very high for a period of time, and it takes a period of time to enter the stable humidity value. The time required to enter a stable humidity indicator will vary depending on the underground air circulation environment and the evaporation environment. The general time is from several months to several years, etc. At this time, multiple dehumidifiers are required to work together.


• The humidity in each location of the warehouse is different. The surface of the humidity indicator actually measured has the largest amount of moisture in the deepest part of the warehouse, then the sides, and the humidity at the door is the smallest. At this time, an industrial dehumidifier can be selected to enhance the dehumidification effect.


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