Vacuum drying oven

Abstract

The invention discloses a vacuum drying oven. The vacuum drying oven comprises a drying oven body, bases, electric heating rods, a supporting frame, a sealing cover and a heat accumulation preventingpart; the drying oven body is of a cylindrical hollow cavity structure with an opening in the upper end, the bases are symmetrically arranged at the bottom of the drying oven body, and the electric heating rods are arranged on the inner bottom wall of the drying oven body and are evenly distributed in a concentric circle mode; and the supporting frame is arranged in the drying oven body and arranged on the electric heating rods in a covering mode, the sealing cover is rotatably arranged at the opening in the upper wall of the drying oven body, and the heat accumulation preventing part is arranged on the bottom wall of the drying oven body and arranged between the bases. The invention belongs to the field of medical instruments, and particularly relates to the drying oven body with the cylindrical structure and the opening at the upper end, uniform heat is generated through the heating rods arranged in the concentric circle structure inside, and uniform distribution of heat is facilitated; and meanwhile, the bottom of the drying oven is subjected to forced convection heat exchange, and accelerated aging of the cable due to heat accumulation is prevented.

Description

technical field [0001] The invention belongs to the technical field of vacuum oven, and specifically refers to a vacuum oven. Background technique [0002] Vacuum oven is a box-type drying equipment that dries dry materials under negative pressure conditions. It uses a vacuum pump to pump air and dehumidify, so that a vacuum state is formed in the working room, the boiling point of water is lowered, and the drying speed is accelerated. However, in the process of using it, some places are often dry, while some places still have relatively large moisture, resulting in uneven drying. At the same time, the oven is often placed on the workbench and is very close to the workbench. Recently, when it is in the working state, the heat released by the heating device is easy to accumulate in the local space. If it is used for a long time, it may accelerate the aging of the internal cables and shorten the service life of the vacuum oven. [0003] The patent application with the patent...

AI Technical Summary

Problems solved by technology

However, in the process of using it, some places are often dry, while some places still have relatively large moisture, resulting in uneven drying. At the same time, the oven is often placed on the workbench and is very close to the workbench. Recently, when it is in the working state, the heat released by the heating device is easy to accumulate in the local space. If it is used for a long time, it may accelerate the aging of the internal cables and shorten the service life of the vacuum oven.

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