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Rotary vane vacuum pump used in carrot drying processing _

by:J&T     2020-07-08

this article will introduce rotary-vane vacuum pump application in the carrot, rotary vane vacuum pump vacuum drying technology, to further explore the carrot vacuum drying characteristics, analyzed the influence of the vacuum water pump on the carrot drying characteristics, and, why choose rotary-vane vacuum pump for vacuum drying, vacuum equipment, after all, a lot of kinds. Carrots have high nutritional value, contain a variety of essential nutrients. Methods to save carrots, therefore, is a lot of people are more concerned about a problem.

with the development of society, people material life level enhancement, the carrot is more valued by people. Carrot drying, processing into dehydrated carrot slices, easy to save, edible and processing, has the good market prospect. Carrots have a lot of dry, hot air drying is the most common way of drying. However, hot air drying cycle is long, the drying quality was poor. Vacuum drying provides the alternative of conventional air drying it allows at low pressure in addition to water. Rotary-vane vacuum pump has resulted in a bubble or expanded food structure, expand the volume of heat and mass transfer. Therefore, by vacuum drying, can have a higher drying speed, lower drying temperature and anoxic environment.

the following the analysis of the effect of vacuum water pump on the carrot drying characteristic.

by exploring the carrot of rotary-vane vacuum pump are in the process of vacuum drying stress and temperature effects on carrot drying characteristics. Results show that under the same system pressure, the higher the temperature, the faster the drying rate; In the same drying temperature, the smaller the system pressure, the faster the drying rate.

rotary vane vacuum pump is widely used in the vacuum drying process. Wetted by clearance can decrease the moisture content in material, make the material in the inland waters such as solution to get enough kinetic energy from the surface of the material. Vacuum drying due to created rotary-vane vacuum water pump vacuum conditions ( The negative pressure condition) Can cut off the air makes some easy oxidation and chemical changes in the process of drying materials better keep the original features, but can be by injection of inert gas by rotary vane vacuum pump vacuum after better protection materials.


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