Low temperature cold storage generally refers to cold storage designed between -15 degrees and -22 degrees, the main difference is from 0-8 degrees of high temperature cold storage. The failure rate of low-temperature cold storage is significantly lower than that of high-temperature cold storage during use, and the main reason is that the temperature is lower. But many failures can be avoided, mainly caused by the use of details. Today we will talk about this category, to save you a little after-sales costs.
First and foremost is the problem of ice jamming of drainage lines. This question may seem complicated, but it is actually very simple. Once the ice is blocked, the ice will slowly freeze more and more, extending to the fins of the air cooler, blocking the fins, and the fan forced convection will have no effect, and there will be no cooling. The standard installation is that in general, manufacturers will install heating wires in the drain pipe, because the temperature is low and the water flow rate is slow. A water storage bend should be set up in the outside part of the drainage pipe to allow the water to flow here to form a liquid seal, otherwise the hot gas outside the reservoir will easily flow back into the reservoir, forming water droplets and freezing on the fins. In addition, the drainage pipe in the library should be wrapped with at least 2cm insulation cotton to prevent freezing when draining. Therefore, in response to the above problems, when using, we should pay attention to regularly checking whether the drainage pipeline heating wire is working normally, whether the insulation cotton is complete, and whether the water storage bend is blocked.
Secondly, the stability of the storage body of the low-temperature cold storage cannot be ignored. Because the temperature difference between indoor and outdoor Nanchong low-temperature cold storage is very large, the outdoor temperature in Nanchong can reach 40+ in summer, and -22 degrees in the warehouse, the gap reaches 60+. The larger the temperature difference, the greater the pressure on the inside of the cold storage, and when the air cooler is suddenly started, there will suddenly be a lot of pressure inside. In addition, for a long time, there will be condensation or ice in the gap of the insulation material of the library body to aggravate the weight of the library, in summary: to regularly check whether the air pressure balance window of the cold storage body is normal, regularly observe whether the sealant of the library body is complete, and regularly check whether the fixed structure of the library body is firm.
