How to prevent thermal deformation inside the oven

Published:

2022-03-07

Through the numerical computer simulation method, the three-dimensional velocity field and pressure field in the oven are proved by the experimental results that the velocity field and pressure of the original model are very unequal. The improved model considers the influence of deflector, air duct, etc. in the velocity field and pressure field. Combined with the scheme of the above improvement measures, the uniformity of the velocity field and the pressure field in the oven are significantly improved, and the influence of vortex is obviously weakened, The scheme basically meets the manufacturer's manufacturing requirements, and the proposed requirements have a certain reference role for the transformation of the oven. Now, the support roll used for the high-temperature oven is a shaft structure, one end of which is a roll shaft extending into the interior of the high-temperature oven, and the other end is a drive shaft outside the high-temperature oven. The roll shaft includes a structure integrated with the drive shaft. The inner shaft and the outer shaft are provided with an outer shaft which is concentric with the outer shaft. Both ends of the inner shaft and the outer shaft are connected by the front plate support and the rear plate support, and at least one of them is converging to provide air on the front support plate and the rear support plate, The front support plate and the rear support plate are provided with air convection holes to allow hot air to enter the roll shaft, ensuring uniform heating of the interior and roll axis. To reduce the thermal deformation caused by various internal and external temperatures, the inner shaft and the inner shaft also adopt a hollow structure, and the ventilation port at the end of the inner shaft is also set, which further reduces the thermal deformation of the external upper inner shaft, and the oven has a new promotion necessity. The temperature control system of the thermostatic oven is analyzed. It is suggested to replace the original contactor control system with a single-chip microcomputer control system, and control the oven temperature with fuzzy logic control rules. Using the simulation function of the system, the temperature control system model with the fuzzy logic controller as the core is established, and the simulation operation is carried out. The experimental results show that the single-chip microcomputer and fuzzy logic control system are much better than the original system. The fluid dynamics uses the computational fluid dynamics method to simulate the dynamics of quantitative analysis in hot air and existing hot air ovens, Application in dynamic energy and hot air flow kinematics.