УДК 63.86.054.2

Технические науки/3. Отраслевое машиностроение

A post-graduate, Basheva E.P., Ph. D. Alexeev G.V., Ph. D. Dmitrenko N.A.

Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики Институт холода и биотехнологий

Problem capping device with twisted flow phases

"Smoothie" drink is currently widespread in the field of healthy food. Its technology includes freshly processed fruit and vegetables. Its purpose is to quench thirst, improve body tone, increase appetite. This beverage category is a medium carbonated refreshing lemon drink with pulp.

Some manufacturers try to combine smoothie making with carbonation. In this case, while designing the machine for the beverage making one has to solve some problems related to the specific behavior of gas-liquid suspension, which is connected with certain difficulties in the design of the technological device. In particular, it is related to the output of the finished product from the process vessel, where the grinding of raw materials takes place.

To solve this problem means both to develop and experimentally test the model of three-phase fluid leakage to the fixed barrier. It requires:

• The study of the flow of carbonated lemon drink when leaving the apparatus and filling containers.

• The study of possibilities of containers packaging with finished product (analytical modeling with variable flow regimes)

• The development of components for sealing containers with lemon carbonated drink (choice of concept scheme and power operative drive)

Complex three-dimensional fluid flow, which takes place in an device with a stirrer, arises as a consequence of the rotational movement of the agitator. Obviously, the tangential flow, which is formed when using mixers, is a primary one.

In an experiment carried out the study. On the basis of numerical experiments on the model described above a graphical dependence of the energy the jet liquid discharge on such parameters as nozzle diameter, velocity, and temperature was received. To confirm these data one experiments on the device were conducted.

Fig. 1 Schematic diagram the experimental apparatus

In an experiment carried out the following studies.

• Changing F, changing the pressure P, the velocity of the ω, the expiration time t, consumption Q

• After installing the blades - Flowing pressure sensors measure the pressure force f on the plane blades

• Comparison with the calculated by the model adopted in the model. To varying degrees of carbonation μ

• Plotted F = f (F, ω, Q, μ)

• Compare the theoretical part of the practical.

Preliminary results give reason to speak of a fundamental confirmation generated model, although more accurate conclusions can be made on the basis of more extensive and accurate experiments.

References:

1. PG Romankiv, MI Kurochkin's "Hydro chemical processes." Leningrad.-1982.-150 p.

2. DG Pazhi, VS Galustov "atomizer".-M.: Chemistry, 1979.-216 p.

3. Genick Bar-Meir, Ph. D. «Basics of Fluid Mechanics». Chicago.-2011.-452 p.