常见的发酵罐分为固体发酵罐和液体发酵罐。发酵罐根据容积和用途不同，分为种子罐（菌种发酵罐）和发酵罐。发酵罐根据需氧类型的不同又分为通风式发酵罐和厌氧发酵罐。
生物发酵罐Biological Fermentor
发酵罐概述Overview Of Fermentation Tank
常见的发酵罐分为固体发酵罐和液体发酵罐。发酵罐根据容积和用途不同，分为种子罐（菌种发酵罐）和发酵罐。发酵罐根据需氧类型的不同又分为通风式发酵罐和厌氧发酵罐。发酵罐、种子罐，有碳钢制、不锈钢、高镍基合金等，主要用于生化发酵生产。如生产味精、柠檬酸、酶制剂、溶剂、制药、食品等行业。
一、发酵罐的基本条件Basic Conditions Of Fermentation Tank
机械搅拌发酵罐是发酵工厂常用类型之一。它是利用机械搅拌器的作用，使空气和醪液充分混合，促使氧在醪液中溶解，以保证供给微生物生长繁殖、发酵所需要的氧气。使用发酵罐的基本要求：
1、发酵罐应具有适宜的径高比。发酵罐的高度与直径之比一般为1.7~4倍左右，罐身越长，氧的利用率较高。
2、发酵罐能承受一定压力。由于发酵罐在消毒及正常工作时，罐内有一定的压力（气压与液压）和温度，因此罐体各部件要有一定的强度，能承受一定的压力。
3、发酵罐的搅拌通风装置使气液充分混合，保证发酵液必须的溶解氧。
4、发酵罐应具有足够的冷却面积。微生物生长代谢过程放出大量的热量，为了控制发酵过程不同阶段所需的温度，应装有足够的冷却面积。
5、发酵罐内应尽量减少死角，避免藏垢积污，易灭菌，避免染菌。
6、搅拌器的轴封应严密，尽量减少泄漏。
二、发酵罐罐体尺寸比例Size Proportion Of Fermentation Tank
罐体各部分的尺寸有一定的比例，罐的高度与直径之比一般为1.7~4倍左右。
发酵罐通常装有两组搅拌器，两组搅拌器的间距S约为搅拌器直径的三倍。
对于大型发酵罐以及液体深度HL较高的，可安装三组或三组以上的搅拌器。
最下面一组搅拌器通常与风管出口较接近为好，与罐底的距离C一般等于搅拌器直径Di，但也不宜小于0.8Di，否则会影响液体的循环。
三、发酵罐的结构Structure Of Fermentation Tank
好气性机械搅拌发酵罐是密封式受压设备，主要部件包括罐身、搅拌器、轴封、打泡器、联轴器、中间轴承、空气吹泡管（或空气喷射器）、挡板、冷却装置、人孔以及管路等。
系统由发酵罐，空气处理系统、蒸汽净化系统、电器控制系统、恒温系统及管路、阀门、辅助系统，传感器与一次仪表系统，下位机控制系统（现场PLC控制系统，二次仪表），上位机系统以及台架等组成。
四、液体发酵罐技术参数/Technical Parameter
| 公称体积 Nominal Volume | 5~3000L |
| 装液系数Liquid Loading Coefficient | 65-80%, Optimum 70% |
| 罐体配置 Can Body Configuration | 不锈钢SUS316L/SUS304材质； Stainless steel SUS316L / SUS304 Material; Jacket temperature control and optimization of diversion design; Internal surface polishing, RA ≤ 0.6 μ m； External surface polishing or matte treatment (glass shot blasting); Long strip mirror with large viewing angle, complete interfaces of pH electrode, do electrode and temperature electrode; The tank cover is equipped with flame inoculation port and feeding standby interface, etc |
| 搅拌系统 Mixing System | 顶入式机械搅拌系统；无菌机封系统；直流搅拌电机（10L及以下）或交流电机； Jacking mechanical mixing system; Aseptic mechanical sealing system; DC mixing motor (10L and below) or AC motor; Standard configuration: 2-layer flat impeller and one-stage high-efficiency defoaming paddle; There are also inclined blades, curved blades, axial flow blades, etc; Adjustable speed, digital setting speed control |
| 结构方式 Structure Mode | 落地式框架结构，节省空间，万向脚轮，操作方便 Floor type frame structure, space saving, universal casters, convenient operation |
| 通气系统Ventilation System | 深层通气，全不锈钢管路； Deep ventilation, all stainless steel pipeline; Glass rotor flowmeter display, pressure display, manual valve adjustment flow; High efficiency sterilizing filter equipped with stainless steel housing, with a filtration accuracy of 0.01 μ m； External compressed air is required, equipped with high-quality water removal and pressure stabilizing devices, to continuously and stably supply gas; Optional mass flow controller for automatic control of air flow |
| 罐压控制 Tank Pressure Control | 顶部排气口配置指针式压力表显示罐压，不锈钢阀门手动调节； The top exhaust port is equipped with a pointer pressure gauge to display the tank pressure, and the stainless steel valve is manually adjusted; It can be equipped with inlet pressure transmitter and automatic regulating valve to realize automatic control of tank pressure |
| 温度控制/Temperature Control | 在线检测，数字化设定，自动/手动控制自由切换； Online detection, digital setting, automatic / manual control, free switching; German PT-100 temperature probe and digital temperature instrument; Automatic temperature control of electric heating thermostatic water tank and external cooling water |
| Ph控制 Ph Control | 在线检测，1路或2路蠕动泵自动流加碱或酸液进行调节； Online detection, 1 or 2 peristaltic pumps automatically add alkali or acid for regulation; Imported Mettler (Hamilton) pH electrode, which can be sterilized by high temperature steam |
| 溶氧(Do) Dissolved Oxygen (Do) | 在线检测，范围0-100%或0-200%； Online detection, range 0-100% or 0-200%; Imported Mettler (Hamilton) do electrode, which can be sterilized by high temperature steam; Optional linkage control with speed and ventilation (to be specified when ordering) |
| 补料控制Replenishment Control | 标配1路/2路等多路蠕动泵时间比例流加补料，流加量累积显示、记录 It is equipped with 1-way / 2-way and other multi-channel peristaltic pumps as standard, with time proportional flow feeding and feeding, and the cumulative flow feeding amount is displayed and recorded |
| 消泡方式Defoaming Mode | 传导式泡沫电极，泡沫异常状况自动报警； The conductive foam electrode automatically alarm the abnormal condition of foam. One peristaltic pump is equipped as standard for automatic / manual flow of defoamer, and the cumulative flow dosage is displayed and recorded |
| 控制系统 Control System | 应用工业级MC-bio控制系统，采用西门子PLC控制器； Apply industrial MC bio control system and Siemens PLC controller; 32-bit true color touch screen operation interface with complete functions and stable operation; Another type a simple instrument control system is optional |
| 灭菌方式/Sterilization Method | 在位灭菌，手动控制，需接外源饱和蒸汽 In place sterilization, manual control, need to connect external saturated steam |
| 可选配项/Optional Configuration | 1.多路补料 Multiple feeding |
| 设备特点Equipment Characteristics | 在位灭菌，安全可靠，培养基浓度准确； In situ sterilization, safe and reliable, accurate medium concentration; No risk of transmission leakage; Large viewing angle longitudinal mirror observation is clear; Various and reliable inoculation methods (standard flame inoculation port, differential pressure inoculation port and other forms are optional); Floor type tank, beautiful and generous; Easy operation and disassembly; Special specifications can be customized. |
