It is very important to choose the brand and supplier of dry ice when purchasing. Choosing suppliers with good quality can ensure the quality and safety of dry ice products. There are many problems with inferior dry ice, such as high water content, fragility and volatility, and toxic gas may be generated during use, which is harmful to people and articles. Personally recommend two cost-effective and reliable dry ice online stores in pdd:
1. Pumet dry ice factory: His dry ice is food grade. 10 kg dry ice only needs 35 yuan, and it was delivered smoothly.
2. Zhijie dry ice production base: His dry ice is also food-grade, with a great discount. 10 Jin to 40 yuan. Now send 2 Jin for exercise.
After buying dry ice, we need to find a suitable container to hold dry ice. It is best to choose a covered incubator or plastic box to ensure the container is sealed and avoid the leakage of carbon dioxide gas released by dry ice, which will affect the cooling effect. I suggest you just put the plastic box with the lid on the internet. The 2 1 liter plastic box on pdd only needs 25 yuan, so it is enough to buy two.
If you want to make the cooling speed of dry ice more obvious, you can spray water on the walls and floors of the dormitory before cooling, so that the carbon dioxide gas released by dry ice will be more easily attached to the surface with high humidity, thus improving the cooling effect. Go to the store and buy a slightly bigger watering can. 500ml spray on pdd is only 8 yuan.
In addition, you can try to hang a wet towel around the container where the dry ice is placed, so that the moisture in the surrounding air can react with the carbon dioxide released by the dry ice, further reducing the indoor temperature. Or put a fan next to the dry ice, let the fan blow against the dry ice, expand the scope of dry ice, or cool the dormitory in a short time.
It should be noted that when using dry ice to cool down, it must be well ventilated to avoid poisoning caused by excessive carbon dioxide concentration. In addition, we also need to pay attention to some basic safety measures, such as not touching dry ice directly to avoid freezing injury; Don't put dry ice directly on the desktop to avoid damaging it.
In a word, using dry ice to cool the dormitory is a very simple and practical method, which not only has low cost, but also has obvious effect. As long as we pay attention to safety during use, we can easily help the dormitory cool down in summer.