Small fermentation tanks are generally used in laboratory fermentations in terms of the volume of fermentation tanks. They are reaction vessels used in specific biochemical reactions. They have functions such as heating, cooling, sterilization, and constant temperature. They can provide services for microbial fermentation. A microenvironment, that is, suitable temperature and pressure. The main body of the fermentation tank is made of high-grade stainless steel and is welded by a cylinder and an oval or dish-shaped head. The materials are mixed evenly through the stirring device in the tank, which promotes the fermentation reaction of the materials. It can achieve high-temperature sterilization in place and complies with the national GMP health standards. It is widely used in major research institutes, laboratories and other scientific research units.

1. Structure of small fermentation tank

The small fermentation tank is mainly composed of three major systems: tank, jacket, and stirring system. It is also equipped with a jacket or coil, a transmission device, a shaft seal device, an insulation medium, a support, a fermentation-specific sampling and discharging valve, and a cooling liquid inlet and outlet. , temperature sensor interface, PH automatic control system, SIP port, DO detection port, pressure sensor, air respirator, sterile sampling port, CIP interface and other components.

Small fermentation tanks are generally made of SUS304/SUS316L high-grade stainless steel. The inner cylinder wall is mechanically polished or electrolytic mirror polished. The outer cylinder wall is insulated with a 304 fully welded structure. The outer surface is mirrored or matte treated; the external connection port of the cylinder is made of Hygienic quick-open joint, safe and hygienic, no dead ends, in line with national GMP health standards.

The online control system for small fermentation tanks adopts color LCD touch screen + PLC fully automatic control, which can detect and control relevant parameters of the fermentation process online. The small fermentation tank control system includes sterilization interface, parameter setting and correction, data curve chart, data report, fermentation batch number setting, online animation, alarm device, etc. It can be connected to the host computer, computer and printer to realize remote monitoring and Data storage and printing.

The small fermentation tank is also equipped with temperature control device, temperature measuring hole, CIP automatic rotating spray ball, defoamer, baffle, air distributor, temperature sensor, sight glass spotlight, liquid level gauge and other equipment to facilitate manual operation. Simple and reliable.

II. Structural Characteristics of Small Fermentation Tanks

1. The small fermentation tanks are made of high-grade stainless steel, and the inner and outer surfaces are polished and brushed. The polishing accuracy is ≤ Ra0.4, which is hygienic and has no dead corners. It can prevent materials from sticking to the wall and is easy to clean;

2. The small fermentation tank mixing system adopts a three-layer six-page turbine fermentation special standard propeller with stepless speed regulation, which can realize fully automatic control of the fermentation mixing process;

3. The small fermentation tank adopts on-site high-temperature steam sterilization. The sterilization process can be automatically controlled and the sterilization temperature is accurate;

4. The small fermentation tank uses Swiss Mettler PH electrodes and shielded wires, with a range of 2~12PH and a control accuracy of ±0.02PH;

5. The small fermentation tank is equipped with automatic foam detection, and defoamer can be added with a sensitivity of 100~10000; the air flow control can be manually adjusted using a rotameter, with a range of 0~5000L/min;

6. The small fermentation tank feeding system can automatically feed through a peristaltic pump, with a range of 0~5L/min and a control accuracy of ±2%.