High-frequency steam vacuum drying box and achieving method thereof

Abstract

The invention discloses a high-frequency steam vacuum drying box and further discloses an achieving method of the high-frequency steam vacuum drying box. The high-frequency steam vacuum drying box comprises a box body, a movable type material vehicle, a high-frequency machine and a water circulating system, the water circulating system comprises a water circulating pump, an water upper box, a vacuum pump and a condensate water inlet pipe, and the vacuum pump is connected with the upper water tank through a vacuum pump exhaust pipeline and connected with a water collecting tank through a pipeline. A pressure relief pipe, a water pumping pipe and a gas extracting pipe are arranged on the water collecting tank, the water pumping pipe is inserted into the box body, the gas extracting pipe is connected with one end of a U-shaped pipe, and the other end of the U-shaped pipe is connected with one end of a wet pumping pipe. The other end of the wet pumping pipe is arranged in the box body, thecondensate water inlet pipe is connected with a condenser, and the outlet end of the condenser is connected with a condensing water outlet pipe. The condensing water outlet pipe is connected with theupper water tank, and a steam generating system for providing steam circulation for the interior of the box body is arranged on the upper portion of the box body. The high-frequency steam vacuum drying box has the characteristics of being simple in structure, low in manufacturing cost, high in production efficiency, wide in application range, high in wood finishing product rate, capable of savingenergy, environmentally friendly, good in using effect and the like.

Description

technical field [0001] The invention relates to wood drying technology, in particular to a high-frequency steam vacuum drying oven and its realization method. Background technique [0002] The existing high-frequency vacuum high-temperature and high-humidity integrated drying oven uses side stainless steel condensation sheets, and water drips after condensation, so awnings and welding parts are required. Such as Chinese patent, patent number: 201120281493.2, a rectangular high-frequency vacuum combined drying box, including a high-frequency heating device, a vacuum box, a water storage tank, a vacuum pump system, a timber car and a track, the shape of the vacuum box and each front section are Rectangular, the vacuum box is provided with a built-in condenser, and the outside of the vacuum box is provided with an insulation layer. The characteristic of high-frequency heating is to heat the inside and outside of the wood at the same time, but the moisture inside the wood is di...

AI Technical Summary

Problems solved by technology

The characteristic of high-frequency heating is to heat the inside and outside of the wood at the same time, but the moisture inside the wood is discharged slower than the surface of the wood, which will form a pressure difference between the inside and outside of the wood. At the same time, the difference between the moisture content of the inside and the surface of the wood will cause uneven shrinkage of the wood and eventually dry Defects such as large cracks will be formed when finished, affecting the drying effect

Images