CN2382962Y - Corrugated board fire-relief core disc for gas pipeline back-fire relief valve - Google Patents
Corrugated board fire-relief core disc for gas pipeline back-fire relief valve Download PDFInfo
- Publication number
- CN2382962Y CN2382962Y CN 99224674 CN99224674U CN2382962Y CN 2382962 Y CN2382962 Y CN 2382962Y CN 99224674 CN99224674 CN 99224674 CN 99224674 U CN99224674 U CN 99224674U CN 2382962 Y CN2382962 Y CN 2382962Y
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- fire
- gas pipeline
- core plate
- retardant core
- fire retardant
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Abstract
The utility model discloses a corrugated board fire relief core plate for fuel gas pipeline fire relief valves. The utility model is characterized in that corrugated steel belts and flat steel belts are lapped and wound into a circular plate, and the center of the plate is provided with a supporting rod for penetrating each layer of the steel belts together. Compared with existing corrugated board fire relief core plates applied to fuel gas pipelines, the utility model has the advantages that the thickness of the plate can be stabilized, and thus, the fire relief performance can be assured. Meanwhile, the vertex angle of the section triangle of the corrugated boards is under 90 DEG, and the thickness of the plate is 32 mm. Thus, the gas flow resistance can be reduced, and the performance index of fire relief can be enhanced. The utility model can be applied to industries, such as, petrochemical processing, fuel gas storage and transportation, gaspipe network, etc.
Description
The utility model belongs to the safety means in the carrier gas grid, is specifically related to the fire retardant core plate that gas pipeline fire arrester uses.
Spark arrester is made up of flange, shell and fire retardant core plate.Fire retardant core plate is the critical component of spark arrester, and can spark arrester bottle up flame in gas pipeline, the fire retardant core plate decisive role.Spark arrester is divided into the enough little passage of a plurality of diameters with the gas pipeline cross section, just can extinguish when flame moves a segment distance in these catwalks after, is called extinguishing.Can make the slit separation of flame generation extinguishing or the diameter of catwalk be called quenching diameter; Flame is called extinguishing length until extinguishing by distance after entering catwalk.Fire retardant core plate is developed according to this principle.
In a very long time in the past, the employed spark arrester of gas pipeline all is the back-fire relief dish that adopts mesh-type, changes over to gradually from late nineteen eighties China and uses the corrugated plating fire retardant core plate.The corrugated plating fire retardant core plate be with stainless steel wave card steel band peace slab band superimposed be rolled into discoid, fire-retardant core is made the lattice shelves to cast cross support in the spark arrester shell, limit the integral position of fire retardant core plate, but the easily relative play of each layer of fire-retardant core roll bending, influence extinguishing length, do not guarantee the back-fire relief performance.Cross frame has increased resistance at airflow direction upper bracket cross section broad.The ripple cross section of ripple steel band is a drift angle greater than 120 ° isosceles triangle, and flow resistance is bigger.The fire retardant core plate that uses in spark arrester at present all is to adopt oil tank spark arrester formula core dish (gas pipeline fire arrester and oil tank spark arrester are different), its width of steel band is 16mm, the thickness of just every dish fire-retardant core has only 16mm, and obviously to be used on the gas pipeline fire arrester be too short to this extinguishing length.In flame arrester for pipe, do not have the effect of back-fire relief.So detect with GB13347 " petroleum gas flame arrester for pipe performance and test method ", still do not have the qualified products of detection.
The purpose of this utility model provides a kind of novel corrugated plate fire retardant core plate, mainly is the play that solves each interlayer of fire retardant core plate corrugated plating, the drawback that the back-fire relief performance is bad and the gas flow resistance is bigger, for gas pipeline provides good, safe and reliable back-fire relief equipment.
The technical solution adopted in the utility model is: gas pipeline fire arrester superimposed is rolled into discoidly with the corrugated plating fire retardant core plate by ripple steel band peace steel band is alternate, at the middle part of disc thickness direction cramp bar is installed, and this cramp bar is through each layer steel band together.
Since adopt bearing support at the middle part of dish with the superimposed multilayer corrugated steel band of coiling with flat strip steel cross-under be in the same place, fundamentally stopped the relative play of each interlayer of steel band, thereby it is thick to have stablized fire retardant core plate, guarantee its back-fire relief performance; The rigidity requirement of the bearing support of cross-under in steel band reduces relatively, and sturdy the casting cross lattice shelves that do not need to use in common spark arrester, cramp bar is actively little at the airflow direction upper section, and gas communication is had no effect.
Further specify structure of the present utility model below in conjunction with drawings and embodiments.
Fig. 1 is the structural representation of existing spark arrester corrugated plating fire retardant core plate and cross frame;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is a corrugated plating fire-retardant core structural representation.
The fire retardant core plate 7 that uses in spark arrester at present is placed in the spark arrester housing 6, and casting cross frame 8 places a side of fire retardant core plate 7 as the lattice shelves, fire retardant core plate 7 is limited to determines in the scope, but can not eliminate between the steel band play relatively; Support 8 is owing to there is rigidity requirement, and the cross-sectional width broad on airflow direction has increased gas-flow resistance.The thick L of fire retardant core plate only is 16mm, and it is far from being enough that this extinguishing length is used for gas pipeline.
Corrugated plating fire retardant core plate that the utility model gas pipeline fire arrester is used adopts alternate the twisting on the mandrel 3 after superimposed of corrosion-resistant stainless steel corrugated plating steel band 1 and flat strip steel 2 to become discoid, packing into behind the ring-shaped jacket 4 in the periphery of dish, is that several cramp bars 5 of d penetrate steel band and fix with diameter.The outer end of cramp bar 5 is fixed on the overcoat 4.The cramp bar 5 of embodiment is cross.Ripple steel band and flat strip steel 2 superimposed formed isoceles triangle tee section drift angles are less than 90 °, compare greater than 120 ° with original cross section drift angle, guaranteed the height h of crest, i.e. quenching diameter, ripple is high for the triangular perimeter length of h has reduced, and the gas communication resistance has also reduced.Corrugated plating width L is a fire retardant core plate thickness, i.e. extinguishing length, and the utility model is 32mm.
The spark arrester of all this fire retardant core plates of packing into promptly becomes the explosion arrestment combustion type spark arrester that can stop subsonic speed flame propagation and can stop explosion arrestment Hong the type flame arrester for pipe of supersonic flame propagation.This product is through the common test passes of Chinese University of Science and Technology and Tianjin public security fire-fighting research institute, and back-fire relief speed reaches 1400m/s.This product has been filled up the blank of domestic gas pipeline fire arrester with the corrugated plating fire retardant core plate, to having played the effect of safeguard protection in the gas pipeline gas transport.Can be widely used in industries such as petrochemical industry, combustion gas accumulating, gaspipe network.
Claims (5)
1, a kind of gas pipeline fire arrester corrugated plating fire retardant core plate, it by ripple steel band (1) alternate with flat strip steel (2) superimposed be rolled into discoid, it is characterized in that the dish thick middle part cramp bar (5) is installed, this cramp bar (5) is through each layer steel band together.
2, gas pipeline fire arrester according to claim 1 corrugated plating fire retardant core plate is characterized in that the cramp bar (5) that is installed on the thick middle part of dish is cross.
3, gas pipeline fire arrester according to claim 1 and 2 is characterized in that in the periphery of dish ring-shaped jacket (4) being housed with ripple back-fire relief dish, and the outer end of cramp bar (5) is fixed on the overcoat (4).
4, gas pipeline fire arrester according to claim 1 corrugated plating fire retardant core plate, the drift angle that it is characterized in that the saturating sky of isosceles triangle that ripple steel band (1) and flat strip steel (2) are built up is less than 90 °.
5, gas pipeline fire arrester according to claim 1 corrugated plating fire retardant core plate, the thickness that it is characterized in that fire retardant core plate is 32mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224674 CN2382962Y (en) | 1999-07-29 | 1999-07-29 | Corrugated board fire-relief core disc for gas pipeline back-fire relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224674 CN2382962Y (en) | 1999-07-29 | 1999-07-29 | Corrugated board fire-relief core disc for gas pipeline back-fire relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382962Y true CN2382962Y (en) | 2000-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99224674 Expired - Lifetime CN2382962Y (en) | 1999-07-29 | 1999-07-29 | Corrugated board fire-relief core disc for gas pipeline back-fire relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382962Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925177A (en) * | 2017-04-12 | 2017-07-07 | 启东恒业石化冶金设备有限公司 | A kind of high-accuracy V-type mixing manufacturing cell and its manufacture method |
| CN112139816A (en) * | 2020-08-05 | 2020-12-29 | 中石化宁波工程有限公司 | Corrugated plate type flame arrester filter element winding device |
-
1999
- 1999-07-29 CN CN 99224674 patent/CN2382962Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925177A (en) * | 2017-04-12 | 2017-07-07 | 启东恒业石化冶金设备有限公司 | A kind of high-accuracy V-type mixing manufacturing cell and its manufacture method |
| CN112139816A (en) * | 2020-08-05 | 2020-12-29 | 中石化宁波工程有限公司 | Corrugated plate type flame arrester filter element winding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUSHUN ZEHUA CHEMICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: PETROCHEMICAL FITTING AND FILLING FACTORY, FUSHUN CITY Effective date: 20040903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040903 Address after: Hebei Fushun City, Liaoning province 113123 Township Village Shuncheng District Patentee after: Fushun Zehua Chemical Equipment Co., Ltd. Address before: Hebei Fushun City, Liaoning province 113123 Township Village Shuncheng District Patentee before: Fushun Petro-Chem. Fittings Filling Factory |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |