The core problem of compressor oper
Matters needing attention when installing rock wool board in cold storage
In order to allow us to eat the food we want at any time, many businesses have their own cold storage, or have installed a semi-hermetic refrigeration compressor, through which the food can be well preserved. There are some aspects that need to be paid attention to when building a cold storage. The following editor will talk about the matters needing attention when installing rock wool boards in the cold storage?
1. Pay attention to rain prevention and do not work in rainy days.
2. A moisture-proof layer must be added for cold preservation. Under the condition of particularly low temperature, resin-free rock wool is used for heat insulation, and the moisture-proof layer must also be fireproof.
3. When the temperature exceeds a certain temperature, such as 200℃, the heat preservation must be protected by appropriate external protection, so that the thickness and bulk density of the rock wool board will not change.
4. Regarding the insulation of large-diameter and flat-walled equipment with finished rock wool, when the temperature exceeds 200℃, be sure to keep in mind the instructions of the rock wool board manufacturer: add insulation nails, (spacing about 400mm), the outer protection should be tight.
5. Appropriate coatings can be used for equipment that needs heat preservation, heat preservation nails, and pipes for corrosion protection. In addition, there should be no leakage. This can achieve better results.
6. The finished rock wool board is easy to be mechanically worn under the condition of outdoor heat preservation. It is advisable to use metal or plastic wrap, and then pay attention to the joints and the sealing of the joints. If necessary, add glue seals. The wrapping layer stacking part is not less than 100mm .
7. When the insulation object is placed at 90 degrees and has a certain height, the insulation layer of the rock wool board must have positioning pins or supporting rings, and the spacing must not be greater than 3 meters to prevent the insulation material from sliding down when there is vibration .
8. In order to achieve the small target of heat loss z*, the joints of rock wool board and felt must be tightly connected. If there are multiple layers of insulation, the cross joints need to be interwoven to avoid forming a thermal bridge, which must be eradicated during cold insulation. Cold bridge.
Therefore, cold storage is not something you can build if you want to build it. There are many aspects that need to be considered. Only when all aspects are considered and all the problems that will occur in the future are solved, there will be no problems in future use.
