CN202182221U - Rupture disc device - Google Patents
Rupture disc device Download PDFInfo
- Publication number
- CN202182221U CN202182221U CN2011202601546U CN201120260154U CN202182221U CN 202182221 U CN202182221 U CN 202182221U CN 2011202601546 U CN2011202601546 U CN 2011202601546U CN 201120260154 U CN201120260154 U CN 201120260154U CN 202182221 U CN202182221 U CN 202182221U
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- CN
- China
- Prior art keywords
- rupture disk
- rupture
- rupture disc
- pressure
- bracket
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Safety Valves (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model provides a rupture device, which relates to the technical field of pressure container safety devices and comprises a rupture disc, a sealing membrane and a rupture disc bracket. The rupture disc is provided with an emanant seam, metal grids are arranged in the middle of the rupture disc bracket, and a fixing ring is arranged on the lateral portion of the rupture disc bracket. The metal grids of the rupture disc bracket are formed by vertically and transversely connecting a plurality of flat steel strips, and grid void ratio of a metal net is larger than 60%. A fixing ring groove formed by a left ring disc and a right ring disc is further wrapped on two sides of the fixing ring of the rupture disc bracket, and the lateral portion of the metal grids are hidden in the fixing ring groove. The rupture disc bracket closely clings to the compressed side of the rupture disc bearing pressure when in use. The rupture device has the substantial advantages and improvements of (1) being simple in structure and convenient to install and use; and (2) having no effect on high pressure rupture of the rupture disc, ensuring production safety, prolonging service life of the rupture disc and saving production cost.
Description
Technical field
The utility model relates to pressure vessel safety device technique field, especially is installed on the blasting piece device of pressurized container, pipeline or other confined space.
Background technique
Rupture disk is a kind of urgent pressure relief device by pressure differential; Difference according to pressure-bearing surface is divided into positive arch rupture disk, antiarch shape rupture disk and dull and stereotyped compound rupture disk; Pressure-bearing surface be concave surface for positive arch rupture disk, pressure-bearing surface be convex surface be antiarch shape rupture disk.The compound rupture disk of a kind of flat board commonly used comprises that 2 are provided with the pressure-bearing flat plate of cracking and place sealing film therebetween; The pressure-bearing flat plate is a pressure-sensing device, and when its pressurized is higher than the pressurized of another side, and pressure reduction is when reaching its maximum pressure-bearing; Pressure-bearing flat plate pressurized is by the place's explosion of cracking; Sealing film is explosion thereupon, and rupture disk forms pressure relief opening superpressure is discharged, and guarantees the safety of closed system.Adeciduate characteristics when the compound slab rupture disk has easy to manufacture and explosion are widely used on pressurized container, pipeline or other seal container of industries such as chemical industry, petrochemical industry, chemistry, metallurgy, weaving.
During use, with the pressure-bearing surface of dull and stereotyped rupture disk inside, under the normal pressure difference (positive differential pressure) towards seal container; Rupture disk is out of shape to another side (pressure release face) by pressure-bearing surface, but because the pressure in the container receives the materialization factor affecting big, the pressure of seal container is extremely unstable; The time bounce-back arranged; When pressure fell after rise, the two sides of rupture disk formed and positive differential pressure differential back in the opposite direction, and differential back causes that rupture disk is to the opposite direction distortion of blasting direction.This positive differential pressure and differential back in the pressurized container take place alternately, make the constantly back and forth distortion of dull and stereotyped rupture disk middle part, and in this case, the dull and stereotyped rupture disk that metallic material is made loses the resistance to compression effect soon and will be replaced.
Summary of the invention
The purpose of the utility model is to propose a kind of blasting piece device, and it can effectively weaken the back pressure distortion of rupture disk, the working life of prolongation rupture disk.
The utility model purpose can realize through following technological scheme:
A kind of blasting piece device comprises rupture disk, sealing film and rupture disk carriage, and rupture disk has emanant cracking, and the middle part of rupture disk carriage is a metal grill, and limit portion is a retaining ring.
Optimized project has: the grid voids of metal grill is greater than 60%; Said sealing film is PEP (fluorinated ethylene propylene copolymer) plastic pellicle or PTFE (teflon) plastic pellicle; Said rupture disk is dull and stereotyped rupture disk; The metal grill of said rupture disk carriage is to be formed by connecting in length and breadth many Flat Steel Bars, and the Flat Steel Bar width is greater than 3mm.
Further optimize and be: the retaining ring both sides bag of rupture disk carriage posts left ring plate and right ring plate, and left ring plate, retaining ring and right ring plate constitute fixedly annular groove, and the Bian Buzang of metal grill goes into fixedly in the annular groove.
During use, with flange the utility model folder support is installed on the relief pipeline of pressurized container, during installation, sealing film places between 2 rupture disks together, and with the emanant alignment of cracking of rupture disk, the rupture disk carriage is close to the rupture disk compression-side that places pressure-bearing.
When the hydrodynamic pressure in the container was exerted pressure to dull and stereotyped rupture disk, the rupture disk carriage was because the grid voids of metal grill influences fluid greatly and not that rupture disk is exerted pressure; When the pressure in the seal container increases to when making the rupture disk explosion above the maximum pressure-bearing of rupture disk design; Sealing film breaks apart; The grid that fluid passes the rupture disk carriage outwards releases, because the grid voids of metal grill is big, the rupture disk carriage does not influence the drainage of fluid.On the other hand, under the normal use condition, when the middle part of rupture disk receives the pressure surge of seal container and when moving back and forth, the grid of rupture disk carriage has just played the effect of resistance shelves rupture disk middle part to intrinsic displacement, thus the working life of improving rupture disk.
The utlity model has following substantive distinguishing features and progress:
1, the utility model is simple in structure, easy to install;
2, the utility model neither influences high pressure explosion, the assurance production safety of rupture disk, has prolonged the working life of rupture disk again, saves production cost.
Description of drawings
Fig. 1 is the rupture disk carrier structure schematic representation of the utility model.
Fig. 2 is the sectional drawing on A-A line of Fig. 1.
Fig. 3 is an I portion enlarged view among Fig. 2.
Fig. 4 is the structural representation (part) of the utility model.
Fig. 5 is the utility model rupture disk schematic representation.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
With reference to figure 1-5, a kind of blasting piece device comprises rupture disk 1, sealing film 2 and rupture disk carriage 3, and rupture disk 1 is for having emanant 10 the dull and stereotyped rupture disk of cracking, and the middle part of rupture disk carriage 3 is a metal grill 30, and limit portion is a retaining ring 31.
In the present embodiment, the metal grill 30 of rupture disk carriage 3 is to be formed by connecting in length and breadth many Flat Steel Bars, and the thickness of Flat Steel Bar is 1.5mm, and width is 10mm, and spacing is 150 mm, and the grid voids of metal grill 30 is greater than 90%; The retaining ring 31 of rupture disk carriage 3 is made by steel plate; Thickness also is 1.5mm; The equal diameters of outer ring diameter and rupture disk 1, interior ring diameter are greater than the relief tube internal diameter, and its both sides bag posts the left ring plate 32 and right ring plate 33 that the stainless steel thin slice is made; Left side ring plate 32 and the outer ring diameter of right ring plate 33 and the equal diameters of dull and stereotyped rupture disk 1; Width is greater than the width of retaining ring 31, makes left ring plate 32, retaining ring 31 and right ring plate 33 constitute fixedly annular groove, and the limit portion of metal grill 30 (being the Flat Steel Bar end) is gone into the Tibetan fixedly in the annular groove.
Described sealing film (2) is PEP plastic pellicle or PTFE plastic pellicle.
During use; With flange the support of the utility model folder is installed on the relief pipeline of pressurized container; Open the perforate corresponding at the retaining ring 31 (comprising left ring plate 32 and right ring plate 33) of the limit of dull and stereotyped rupture disk 1 one and rupture disk carriage 3 in case of necessity with flange mounting hole; During installation, sealing film 2 is placed between 2 dull and stereotyped rupture disks 1 together, and make emanant 10 alignment of cracking of 2 dull and stereotyped rupture disks 1; Rupture disk carriage 3 is adhered on dull and stereotyped rupture disk 1 side (like Fig. 5) of pressure-bearing, and arrow is a compression aspect among the figure.
When the hydrodynamic pressure in the container was exerted pressure to dull and stereotyped rupture disk 1, rupture disk carriage 3 was because the grid voids of metal grill influences fluid greatly and not that dull and stereotyped rupture disk 1 is exerted pressure; When the pressure in the seal container increases to the maximum pressure-bearing that surpasses dull and stereotyped rupture disk 1 design (can by the length and intersegmental apart from decision of cracking) and during explosion; Dull and stereotyped rupture disk 1 is divided into some (present embodiment is 8) from cracking 10 fractures and outwards opens; Sealing film 2 breaks; The grid that fluid passes rupture disk carriage 3 outwards releases, because the grid voids of metal grill is big, rupture disk carriage 3 does not influence the drainage of fluid.
Under normal use condition, when the middle part of dull and stereotyped rupture disk 1 receives the pressure surge of seal container and when moving back and forth, the grid of rupture disk carriage 3 has just played the effect of the dull and stereotyped rupture disk of resistance shelves 1 middle part to intrinsic displacement, thus the working life of improving dull and stereotyped rupture disk.
Claims (6)
1. blasting piece device; Comprise rupture disk (1) and sealing film (2), rupture disk (1) has emanant cracking (10), it is characterized in that: also comprise rupture disk carriage (3); The middle part of rupture disk carriage (3) is metal grill (30), and limit portion is retaining ring (31).
2. blasting piece device according to claim 1 is characterized in that: the grid voids of said metal grill (30) is greater than 60%.
3. blasting piece device according to claim 1 is characterized in that: described rupture disk (1) is dull and stereotyped rupture disk.
4. blasting piece device according to claim 1 is characterized in that: described sealing film (2) is PEP plastic pellicle or PTFE plastic pellicle.
5. according to claim 1 or 2 or 3 or 4 described blasting piece devices, it is characterized in that: metal grill (30) is to be formed by connecting in length and breadth many Flat Steel Bars, and the Flat Steel Bar width is greater than 3mm.
6. according to claim 1 or 2 or 3 or 4 described blasting piece devices; It is characterized in that: retaining ring (31) the both sides bag of rupture disk carriage (3) posts left ring plate (32) and right ring plate (33); A left side ring plate (32), retaining ring (31) and right ring plate (33) formation be annular groove fixedly, and the Bian Buzang of metal grill (30) goes into fixedly in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202601546U CN202182221U (en) | 2011-07-22 | 2011-07-22 | Rupture disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202601546U CN202182221U (en) | 2011-07-22 | 2011-07-22 | Rupture disc device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202182221U true CN202182221U (en) | 2012-04-04 |
Family
ID=46175258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202601546U Expired - Lifetime CN202182221U (en) | 2011-07-22 | 2011-07-22 | Rupture disc device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202182221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351586A (en) * | 2015-12-11 | 2016-02-24 | 南京理工大学 | Quick response venting device |
| US11619233B2 (en) | 2016-08-11 | 2023-04-04 | Edwards Limited | Enclosure system including wire mesh and thin non-porous membrane panels |
-
2011
- 2011-07-22 CN CN2011202601546U patent/CN202182221U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351586A (en) * | 2015-12-11 | 2016-02-24 | 南京理工大学 | Quick response venting device |
| CN105351586B (en) * | 2015-12-11 | 2018-07-31 | 南京理工大学 | Quick response is through-flow device |
| US11619233B2 (en) | 2016-08-11 | 2023-04-04 | Edwards Limited | Enclosure system including wire mesh and thin non-porous membrane panels |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120404 |