In the food processing industry, for example, the level measurement of the saccharification pot in a sugar factory requires not only high measurement accuracy, but also the equipment must be able to adapt to the harsh environment of high temperature, high viscosity and easy crystallization.
This article will analyze the application of radar level meter in saccharification pot level measurement.
The saccharification pot is a key equipment used in the saccharification process in the sugar factory. Its main function is to convert the preheated sugar juice into syrup by chemical reaction at high temperature. The level measurement of the saccharification pot has the following characteristics:
1. High temperature environment: The temperature during the saccharification process can reach more than 100°C, which poses a challenge to the high temperature resistance of the measuring equipment.
2. High viscosity medium: The viscosity of syrup is much higher than that of water, which makes it difficult for conventional liquid level measurement technology to accurately reflect the level changes.
3. Easy crystallization characteristics: Syrup is easy to crystallize during the cooling process, which may affect the working effect of the measuring equipment.
4. Hygiene requirements: The food processing industry has strict requirements on the cleanliness and hygiene of equipment, and the measuring equipment must be easy to clean and maintain.
In view of the above characteristics, radar level meter has become an ideal choice for saccharification pot level measurement due to its advantages of non-contact measurement, high precision, strong temperature resistance and anti-adhesion. Radar level meter measures distance by emitting microwave signals and receiving its reflected waves on the surface of the medium, and then calculates the level height.
Because the microwave signal it uses can penetrate steam and dust, and is not affected by the conductivity, density and dielectric constant of the medium, it is very suitable for high temperature, high viscosity and easy crystallization saccharification pot environment.
In the saccharification pot of a sugar factory, in order to achieve precise level control, a high-frequency radar level meter is used for measurement.
The operating frequency of this radar level meter is 26GHz, with good signal focusing ability, which can effectively reduce the interference of the tank wall and improve the measurement accuracy.
During installation, the radar level meter is fixed on the top of the saccharification pot to ensure that the microwave signal can be vertically irradiated to the surface of the syrup.
In practical applications, the radar level meter successfully overcame the harsh conditions of high temperature, high viscosity and easy crystallization in the saccharification pot, and achieved continuous and accurate measurement of the syrup level.
Data shows that the measurement error is controlled within ±3mm, which is much higher than the measurement accuracy of traditional float type, pressure type and other liquid level meters.
In addition, due to the non-contact measurement characteristics of the radar level meter, maintenance costs and downtime are reduced, and production efficiency is improved.