Efficient energy-saving microwave drying device of solar energy vacuum heat-collecting tubes

Abstract

Disclosed is an efficient energy-saving microwave drying device of solar energy vacuum heat-collecting tubes, which is characterized in that: the device comprises a box body and the inner wall of the box body is provided with one microwave generator or more microwave generators; the box body is equipped with a door, wherein the door is equipped with a handle used for opening and closing the door, a power supply module, and a power adjustment switch, and the microwave generator is electrically connected to the power supply module through the power adjustment switch; a microwave shielding layer is arranged on the inner wall and / or outer wall of the box body; the top portion of the box body is provided with an air vent; and a shielding mesh for preventing microwave leaking is arranged on the air vent. The efficient energy-saving microwave drying device of the invention heats selectively, which has the advantages of reducing the heating time, improving the production efficiency, and realizing effects of high efficiency and energy saving; not producing waste water and waste gases; and heating rapidly, uniformly, and omni-directionally without a local temperature peak.

Description

technical field [0001] The invention relates to the technical field of production of solar vacuum heat collecting tubes, in particular to a drying device for cleaning blank tubes during the production process of solar vacuum heat collecting tubes. Background technique [0002] The important form of solar energy utilization is the utilization of light and heat. The all-glass vacuum heat collector tube is a key component of solar water heaters and heat collectors. The process and results of drying the blank tube after cleaning have an impact on the heat absorption performance, economic benefits and aesthetics of the vacuum tube. greater impact. [0003] At present, in the production process of all-glass solar vacuum tubes, the drying treatment of the rough tubes after cleaning is generally processed in a tunnel oven. The entire oven can be divided into several sections, each section is equipped with a metal liner, and the heating rod is installed between the box and the inner...

AI Technical Summary

Problems solved by technology

However, if this oven drying technology makes the temperature in the oven uniform and the baking effect is good, the process of heat conduction must be required. The entire production process consumes a lot of power and increases production costs. Thermal inertia makes the production process take a long time, reduces production efficiency, and seriously affects the economy. benefit

Moreover, the oven is bulky and has a complex structure, and it is not easy to move on a fixed ground. If it is moved, it must be completely removed, which increases operating costs.

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