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Graphite rupture disk with groove

A bursting disc and graphite technology, applied in functional valve types, safety valves, engine components, etc., can solve the problems of bursting shape, rupture disc deformation, irregularity, etc., and achieve the effect of less debris, stable bursting pressure, and easy processing.

Inactive Publication Date: 2015-03-25
DALIAN LIGONG SAFETY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the above-mentioned technical problems such as the processing process of the existing graphite bursting discs that easily cause the bursting discs to be deformed, cracked or even broken, and the blasting shape is irregular during blasting, a grooved graphite bursting disc is provided.

Method used

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  • Graphite rupture disk with groove
  • Graphite rupture disk with groove
  • Graphite rupture disk with groove

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The nominal diameter of the grooved graphite rupture disc is DN=100mm, and the design burst pressure is P b =0.4MPa(G), the design burst temperature is 20°C, the height difference H1 between the upper surface of the bursting zone 3 of the bursting disc and the upper surface of the edge 1 of the bursting disc is 10mm, and the outer diameter of the annular connection part 2 D=110mm, the difference between the outer diameter and the inner diameter of the annular connection part 2 is 5mm, calculated according to the following formula:

[0031] S 1 = 256 D 2 + 528 P b D 2 - 16 D 264 ,

[0032] The thickness ...

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Abstract

The invention discloses a graphite rupture disk with a groove. The graphite rupture disk with the groove comprises a rupture disk edge and a rupture disk rupture area and is characterized in that the rupture disk edge and the rupture disk rupture area are connected through an annular connecting part, the difference between the outer diameter and the inner diameter of the annular connecting part ranges from 3 mm to 5 mm, the requirement for the thickness of the annular connecting part is S1, the thickness of the rupture disk rupture area is S2, and S1 and S2 meet the relation: 3S1<=S2<=8S1. According to the graphite rupture disk with the groove, machining is easy, the thickness machining precision of the rupture disk rupture area is low, the amount of machining of the annular connecting part is small, thickness control precision is high, rupture pressure is stable, the rupture disk rupture area falls off integrally along the annular connecting part after an explosion, the number of broken pieces is small, and discharging capacity is high.

Description

technical field [0001] The invention relates to a safety device, in particular to a graphite burst disc with grooves. Background technique [0002] Bursting discs are important safety devices for pressure vessels and pipelines. When an accidental overpressure occurs in the pressure vessel, it can burst under the specified temperature and pressure, release the pressure, and protect the safety of people's lives and national property. When the medium of the protected system is highly corrosive, metal materials cannot be used as the material of the bursting disc. Generally, graphite, a non-metallic material with good corrosion resistance, is used to make the bursting disc. [0003] Graphite bursting discs are generally processed by turning or milling graphite blanks, and the bursting pressure is controlled by the remaining thickness of the graphite bursting disc. It is a brittle material and its own strength is low, so the processing of graphite-type rupture discs is very diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/16
CPCF16K17/16
Inventor 姜一昌徐忠慧李岳温殿江宋辰肖飞王东
Owner DALIAN LIGONG SAFETY EQUIP
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