Detailed explanation of the structure of tubular sterilizer

A tubular sterilizer consists of several key components, including a material handling system, a high-temperature heated water system, an optional vacuum degassing system, an optional high-pressure homogenizer, CIP cleaning equipment, an optional self-sterilization system, and an electrical control system.

The basic structure involves stainless steel heating tubes installed within a shell, forming a heating tube bundle. The shell and heating tubes are connected via a tube sheet.

### Key Components:

1. **High-Temperature Heated Water System**: This system includes a hot water tank, hot water pump, steam-water mixer, spiral grooved tubular heat exchanger gas train, pneumatic diaphragm control valve, and flow meter.

2. **Electrical Control System**: This system comprises a programmable logic controller (PLC), a touchscreen human-machine interface, temperature sensors, liquid level sensors, control valves, and electrical switches. It provides automated control for equipment sterilization, production, and CIP cleaning.

### Material System:

Materials enter the balancing tank and are pumped by a centrifugal sanitary pump into the preheating section of the tubular heat exchanger. Once the material reaches the homogenization temperature, it passes through a homogenizer (if required) for homogenization. The homogenized material then moves through the sterilization, holding, heat recovery, and cooling sections of the tubular heat exchanger.

Finished materials that meet sterilization requirements are directed to the next process via a return valve. If the material does not meet sterilization standards, the return valve automatically switches, sending the material back to the balancing tank for re-sterilization. During production, the sterilization temperature is controlled with an accuracy of no more than ±2°C.