Ground handling before installation should be detailed
The ground must be level within a radius of 2 meters, and the height difference should not exceed 3mm. The ground must be completely dry. Before laying the floor, a geothermal heating test must be conducted to ensure that the heating system operates normally. The inlet water temperature should be at least 50°C. And to keep warm for more than 24 hours to make the ground dry, to ensure that the moisture content meets standards.
The most important details of the installation process, the order of stress
It is best to use a suspension type installation method. The floor is closely attached to the ground through the cushion material, there is no gap between the floor and the surface, and more shrinkage gaps are reserved between the floors. Since the amount of tidal gas released by hydrothermal radiation is large, it is necessary to work hard to prevent moisture.
When paving, you must first clean the floor. Pay attention to clean the corners and ensure that there are enough expansion joints. The second step is to lay a layer of plastic cloth on the ground to isolate the moisture. The plastic sheet should be raised 10cm above the ground at four corners. The third step is to lay the floor mat. Be careful to leave expansion joints, overlap at least 5cm at the interface, and must be sealed with tape. Use a skirting board that is thicker than a normal floor and use it separately. The floor can only warm up after 24 hours of installation. In order to facilitate heat conduction, the cushion material should not be too thick.
In addition, the use of special geothermal floor glue; can not be paved; can not play keel, because this will leave air between the gap, the air's low thermal conductivity, is not conducive to heat transfer.
Use special paper mats to avoid distortion
During the renovation, you must be careful not to punch holes or nails in the ground.
During the renovation, attention should be paid to not punching holes or nails on the ground so as not to leak geothermal pipes, causing the geothermal system to run out of water and the floor foam to be scrapped. In addition, because the surface of the floor is a heat-dissipation surface, the floor should not be fixed or decorated with legless furniture. It is also not suitable to build a platform to avoid affecting the flow of hot air, resulting in poor heating of the room.
Due to the relatively high surface temperature of the floor, it is best not to place glassware and chinaware directly on the ground in winter when using a geothermal heating system, so as to avoid uneven heating, heat expansion and contraction, and rupture of the vessel. .
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Sodium Sulfate, also known as anhydrous Glauber's salt or Anhydrous Mirabilite, appears as white monoclinic crystal or fine powder with the relative density being 2.68 and the melting point being 884 ℃. It can be dissolved in water with the aqueous solution being neutral. It is soluble in glycerol and insoluble in ethanol. It is easy to absorb water when being exposed to become hydrous sodium sulfate. It is a homogeneous polycrystalline material and is rhombus at a temperature of 32.4~223 ℃ with generating shaped monoclinic crystal at higher temperatures and generating hexagonal crystals in 241 ℃. When being crystallized from solution, it has high affinity to iron, iron compound and various kinds of other organic compounds.
There are two kinds of crystalline hydrate compound of sodium sulfate: one is heptahydrate sodium sulfate Na2SO4·7H2O, being white sixty or tetragonal crystal with dehydrating at 24.4 ℃. Another is sodium sulfate decahydrate Na2SO4·10H2O with conventional name being Glauber's salt.
Uses:
Sodium sulfate is an important raw material in the
manufacturing of glass and paper with the maximum usage amount in the paper and
cellulose industry which accounts for around 70% of the total amount. Sodium
sulfate is the component of synthetic detergent and is a neutral salt. It can
be added to the detergent to reduce the surface tension as well as increases
the solubility of the detergent. It is also be used as the dye diluent and the
auxiliary agent of the dye printing, as direct dyes, sulfur dyes, vat dyes and
other accelerant of dyed cotton fiber, as retarding agent for direct dye silk.
In the chemical industry, it can be used as the raw material for the
manufacturing of sodium sulfide, gypsum, sodium silicate and other chemical
products. It has been now developed of the method for making sulfuric acid,
sulfur, soda ash, ammonium sulfate and other products with sodium sulfate.
However, due to the high cost of these methods, it has not yet been widely
applied. It has been commonly used by laboratory system for using sodium
sulfate as cold agent. Glauber's salt has been used as a laxative medicine. The
sodium sulfate entering into the body is largely stuck in the gastrointestinal
tract without being absorbed and being maintained at certain penetration. It
can increase the volume of the intestines and induce intestinal peristalsis
with diarrhea effect. Sodium sulfate is the antidote of barium and lead
poisoning. Upon lead poisoning, people can apply gastric lavage with 10%
Glauber's salt or orally administer 1 to 2% sodium sulfate solution.
Sodium Sulfate
Sodium Sulfate,Raw Material Sodium Sulfate,Anhydrous Mirabilite,Anhydrous Sodium Sulfate
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