In-furnace high-pressure prevention device for vacuum furnace

• Main Authors: GUO FENGXIANG, HU SHIWEI, GUO BIN, CHUAI YANMING, WANG JINDUO
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2019
• Subjects: BLASTING; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; HEATING; KILNS; LIGHTING; MECHANICAL ENGINEERING; OVENS; RETORTS; WEAPONS

The utility model discloses a device for preventing high pressure in a vacuum furnace. The pressure relief device comprises a vertical connecting pipe communicated with the vacuum furnace, a pressurerelief plug is arranged at the top of the connecting pipe, the pressure relief plug is of a symmetrical structure, the bottom of the pressure relief plug is of a cone structure, the diameter of the pressure relief plug is larger than the inner diameter of the connecting pipe, and the center of the pressure relief plug and the center of the connecting pipe are located on the same straight line. A protective cover fixed to the outer side of the connecting pipe is arranged on the periphery of the pressure relief plug, the horizontal height of the protective cover is larger than that of the pressure relief plug, the height difference between the top of the protective cover and the top of the pressure relief plug is smaller than or equal to that of the pressure relief plug, and a plurality of air leakage holes are form