Year1
- 爆破口径：
- 由需方指定参数可定
- 爆破压力：
- 由需方指定参数可定
- 爆破温度：
- 由需方指定参数可定
The basic concept definition of bursting disc
The bursting disc safety device (bursting disc
+
holder)
is composed of bursting disc and holder and other components Non-reclosing is a pressure relief device.
Bursting disc
is a pressure sensitive component that acts quickly due to overpressure. (To put it bluntly, it is a protection device for protecting equipment to prevent explosion due to excessive pressure. It is used to relieve pressure.)
Gripper
The function of the gripper is to provide a safe release amount equivalent to the container. The media release pipe mouth, the periphery of the explosion bursting disc is firmly clamped, the sealing is tight, and it matches the bursting disc components to release the pressure within the calibrated bursting disc pressure. Generally, there are upper clamps and lower clamps, which can be equipped with sealing gaskets ( lozenge).
Reinforcement ring
In the combined bursting disc, it is an annular ring that closely fits the edge of the bursting disc and plays a role in enhancing its edge stiffness.
Back pressure difference
Under normal operating conditions, when the pressure on the discharge side of the rupture disc safety device is higher than the pressure on the inlet side, including when the inlet side is in a negative pressure (i.e. vacuum, negative pressure is pressure) state , causing a pressure difference in the opposite pressure relief direction to form on both sides of the bursting disc. This pressure difference is called a back pressure difference.
Back pressure bracket
In combined rupture discs, the support frame is used to prevent accidental damage of the rupture disc due to back pressure difference
Rupture disc product types
Positive arch opening Slit-type bursting disc
. The structure is a combined bursting disc. The bursting disc and back-pressure bracket are opened with holes and slits (radial or circumferential slits) that weaken the material strength, which will cause the bursting disc to explode at a minimum during overpressure. Tensile failure at the interface between pore spacing
. Suitable for use in both gas and liquid media and low pressure conditions.
.When determining the burst temperature, consider the suitable temperature of the sealing film to ensure sealing performance
.The maximum working pressure must reach %
.It may produce debris and is not recommended in series with the safety valve.
Ordinary arched bursting disc (
)
. The bursting disc is a single-layer diaphragm. The wall thickness of the overpressure arched disc will be thinned and damaged by tension.
.Suitable for use in gas and liquid media and working conditions with relatively high pressure of bursting discs
.With bracket, it can withstand back pressure
.The maximum working pressure is % of the minimum bursting pressure
. It may produce fragments. It is not recommended to be used in series with the safety valve, which is more dangerous.
. Because the material may limit the processing burst pressure (usually stainless steel is used).
Positive arch grooved bursting disc (
)
The structure is a single-layer diaphragm. The arch surface is engraved with cross grooves and annular grooves that weaken the strength. It is stretched from the grooves when overpressure occurs. Destruction
. Suitable for both gas and liquid media and working conditions with high bursting pressure
. The maximum working pressure can reach % of the minimum bursting pressure
. No fragments are produced during blasting, and can be combined with Safety valves are used in series
． There are no sparks during blasting
Reverse-arched crocodile tooth bursting disc
Suitable for use in gas-phase media, with good ability to withstand back pressure, it can withstand full vacuum without the need for brackets, anti-fatigue, and no fragments are generated, compare Suitable for use in equipment with low pressure
Reverse-arched slotted bursting disc
This model is generally used on sanitary equipment in pharmaceutical factories. There is no spark during blasting, and it is suitable for gas-phase media. Suitable for use in equipment with lower pressure
Reverse arch grooved bursting disc (
)
The structure is a single-layer arched diaphragm, and the concave surface of the arch is engraved with cross weakening grooves to prevent loss of energy. After turning over steadily, the bursting disc tears and releases along the groove.
. Adapted to gas phase media
. Good ability to withstand pressure, can withstand full vacuum without brackets
. Maximum working pressure can reach % of the minimum burst pressure
. Resistant to fatigue , can be used in situations with pulsating pressure
.There are no fragments after blasting, and can be used in series with safety valves
.There are no sparks after blasting
Flat-plate slotted bursting discs
The shape is round Flat slit type and square flat slit type, square is generally standard, while round is non-standard and needs to be customized.
It is composed of bursting disc, sealing film, and back-pressure bracket. The bursting disc and back-pressure bracket have holes and slits (slits on all four sides) that weaken the material strength. The overpressure is at the interface with the smallest hole spacing. Tensile failure.
.The working medium is suitable for gas phase and liquid phase. It is suitable for equipment with low pressure and large discharge diameter. It is often used in dust storage equipment.
Company name Shanghai Langyan Security System Equipment Co., Ltd.
Contact person Zhou Xiaoqian
Work (same as WeChat ID and email)
Fax number
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