Sealing device and method suitable for ultra-high pressure strengthened wood

A sealing device and ultra-high pressure technology, applied in the direction of wood compression, etc., can solve the problems of puncture and strengthening failure of film packaging bags, and achieve the effect of improving the utilization rate

Active Publication Date: 2019-01-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the wood is vacuum-packed with a soft film material and placed directly in a high-pressure chamber for strengthening treatment, there is a risk that the film packaging bag will be punctured by the edges and corners of the wood, resulting in failure of strengthening.

Method used

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  • Sealing device and method suitable for ultra-high pressure strengthened wood
  • Sealing device and method suitable for ultra-high pressure strengthened wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, a kind of sealing device that is suitable for ultra-high pressure strengthened wood, such as Figure 1~2 As shown, it includes a hollow cavity 1 and a gland 2, the top of the cavity 1 is open, and the inner wall at the top opening of the cavity 1 is provided with internal threads. The outer wall of the gland 2 is provided with an external thread that matches the internal thread of the cavity 1, and a sealing ring is provided between the cavity 1 and the gland 2; the gland 2 can be screwed into the top opening of the cavity 1 , thereby sealing the inner cavity 11 of the cavity 1 . A groove 21 is provided at the bottom of the gland 2 . A horizontal plate 4 , a piston 5 and an expansion pressure bag 6 are sequentially arranged in the inner cavity 11 of the cavity 1 from top to bottom.

[0031] Two identical springs 3 are arranged symmetrically in the groove 21, that is, the elastic coefficient and the number of turns of the two springs 3 are all the same; ...

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PUM

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Abstract

The invention discloses a sealing device suitable for ultrahigh pressure reinforced wood. The sealing device comprises a cavity body and a gland. The top of the cavity body is open, a groove is formed in the bottom of the gland, and springs are arranged in the groove. A horizontal plate, a piston and an expansion pressed bag are sequentially arranged in an inner cavity of the cavity body from top to bottom. One end of each spring is connected with the top of the groove, and the other end of each spring is fixedly connected with the horizontal plate. The piston is connected with the inner wall of the cavity body in a sealed sliding manner. A liquid inlet communicating with the inner cavity is formed in the bottom of the cavity. After an opening of the expansion pressed bag is turned outwards, the expansion pressed bag is arranged on the outer side face of the liquid inlet in a sleeving manner. A nut used for tightly connecting the opening of the expansion pressed bag with the liquid inlet is arranged at the position of the liquid inlet. The invention further discloses a sealing method suitable for the ultrahigh pressure reinforced wood through the device.

Description

technical field [0001] The invention relates to an ultra-high pressure sealing device and method, in particular to a sealing device and method suitable for ultra-high pressure reinforced wood. Background technique [0002] In today's people's life, the quality requirements of wood are getting higher and higher. Existing low-quality wood can increase the hardness of wood through ultra-high pressure strengthening, and modify ordinary wood into high-strength, high-quality high-grade wood. However, the existing ultra-high pressure strengthening process is all in a sealed high-pressure chamber, using liquid as the pressure transmission medium (usually water as the pressure transmission medium) to realize the strengthening of materials. However, if the wood is vacuum-packed with a soft film material and placed directly in a high-pressure chamber for strengthening treatment, there is a risk that the film packaging bag will be punctured by the edges and corners of the wood, resulti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M1/02
CPCB27M1/02
Inventor 于勇闫凯亚余科
Owner ZHEJIANG UNIV
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