The liquid fermentation tank manufacturer will introduce the cooling system of the fermentation tank

Liquid fermentation tank manufacturer: the fermentation tank is cooled by industrial water chiller

The method of cooling these chambers is different from the fermentation vessel itself. These freezing methods can be carried out from the inside and outside.

Cooling from inside

Some fermentation cooling devices need to insert a cooling rod or a circle into the fermentation liquid, and these devices will increase the risk of cooling the fermentation container from the inside by directly contacting the cooling liquid. If tools and equipment are inserted into the fermentation liquid at any time, they may contact with unwanted microorganisms such as wild yeast, which may change your preferences and bacteria, and pollute your drink, Opening the fermentation chamber and inserting the cooling device will also increase the change of oxidation deterioration.

Even if this cooling method is adopted, the cooling efficiency will be greatly reduced, and the fermentation broth will be exposed to a smaller cooling surface area, so the cooling effect will be poor, especially for a large amount of fermentation broth, the risk of hot spots and cold spots in the fermentation broth will be increased, and yeast will be difficult to complete the fermentation process.

Cooling from outside

Cooling the fermentation chamber from the outside is the most effective method. Regardless of the diameter of the fermentation vessel, the external surface area is always greater than the internal cooling. The best effect is to make the freezing source directly contact with the fermentation vessel. Because the heat flow from the vessel to the cooler is uniform, the fermentation tank has a variety of shapes and sizes. Therefore, in order to fully contact with the vessel, the cooling source must be as flexible as possible.

Coolant

The fermentation cooling jacket completely wrapped around the fermentation tank provides the most direct cooling contact. The insulated magnetic flux jacket from the company's water chiller has multiple coolant channels, which are evenly distributed around the fermentation chamber. These temperature adjustment ranges can remove hot spots and cold spots, maintain the mood and fermentation of the yeast. The air-cooled water chiller is easy to install, and can flexibly cope with the shape and size of various containers without opening the fermentation container.

Liquid fermentation tank manufacturer: how to mix materials in the fermentation tank

The materials in the fermentation tank are mechanically stirred to produce axial and radial flow, so that the materials in the tank are well mixed and the solid substances in the liquid are kept in suspension, which is conducive to the full contact between the solid and the nutrient substances and facilitate the absorption of nutrients; On the other hand, it can crush bubbles, increase the gas-liquid contact area, improve the transmission speed between gas and liquid, improve the transmission effect of oxygen, and eliminate bubbles. At the same time, it is necessary to inject sterile air to maintain the oxygen of the cell and meet the growth and fermentation of aerobic bacteria.

The structure of the fermentation tank is based on the characteristics of rapid rotation of the rotor immersed in the fermentation liquid. Due to the centrifugal force, the liquid and air move towards the outer edge, and the pressure near the rotor gradually increases, so the rotor of the fermentation tank rotates faster. Because the empty position of the rotor is connected with the atmosphere, the air outside the fermentation tank is constantly sucked in through the filter, and soon it is thrown to the outer edge of the impeller, and then the air and liquid are evenly distributed through the anisotropic impeller, so as to stir, It also makes the gas and liquid form a strong mixing flow around the impeller, the air foam is crushed, and the gas and liquid are fully mixed.