What are the key points you need to pay attention to in the purchase of air conditioning machine?

With the change of The Times, people's way of life is also constantly changing, food as People's Daily needs, in its taste and appearance, but also more and more pursuit of high quality, food packaging as a barrier to protect food, play a role in protecting food, but for some difficult to store food, want to store without destroying the taste of the food, this needs a kind of air conditioning machine to help, so for the air conditioning machine purchase we need to pay attention to what key points?

As we know, the air-conditioned packaging machine is called MAP or CAP in foreign countries, and it is called air-conditioned packaging or inflatable packaging in China. It uses a vacuum pump to extract the air in the bag or box to form a certain vacuum degree, and then fills in the mixed fresh-keeping gas. Through this way of gas replacement to achieve a food lock effect. And we need to pay attention to a few key points in the purchase of air conditioning machine.

First, gas mixing degree

An important link that needs to be paid attention to in the selection of air conditioning machine is the accuracy of gas mixing. The commonly used gases are carbon dioxide, oxygen and nitrogen. Carbon dioxide is an important gas for gas regulation in food packaging. In general, the higher the carbon dioxide concentration, the longer the decay resistance period of perishable food. Nitrogen is an inert gas used to expel air, especially oxygen, from packaging. It is also used as a filling gas in perishable foods. Nitrogen reduces the vacuum effect and is also a natural component of air. Oxygen is an important gas for all living organisms and also supports the spoilage of perishable foods. It is the condition for the growth of aerobic microorganisms. In general, oxygen is not used in MAP, but in some cases, quantitative oxygen yields fairly good results. Different foods have different gas requirements, so we need to decide according to the characteristics of the product.

II. Mixer selection

Attention should be paid to the selection of mixer in the selection of air conditioning packer. This determines the mixing accuracy of the gas of the product. How to accurately mix the classic gas mixer, through the double isobaric principle, through the proportional valve to adjust the proportion of various gases, gas proportion and accuracy is not affected by the change of gas source pressure, gas flow fluctuation, stable and accurate gas supply.

Three, packaging materials

On the selection of air conditioning baling machine, attention should be paid to the material problem of the packing box. The general packing box should be made of high barrier material. The packing film varies according to the characteristics of different products. Packaging film should have the common characteristics of anti-fogging, light transmittance to a low value, different permeability products choose different characteristics of film, such as fruit and vegetable respiration will affect the proportion of mixed gas, need to rely on the permeability of the barrier film to maintain the balance of gas proportion.

Through the introduction of the above can see, the switch installed on the choose and buy, still need to be done from several aspects to consider when the choose and buy gas switch machine manufacturers, we need to find some manufacturer, with strength and look at the manufacturer's market share, through multiple links to compare to the corresponding choice!