CN101994548A - Anti-explosion flame arrester - Google Patents
Anti-explosion flame arrester Download PDFInfo
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- CN101994548A CN101994548A CN 201010575931 CN201010575931A CN101994548A CN 101994548 A CN101994548 A CN 101994548A CN 201010575931 CN201010575931 CN 201010575931 CN 201010575931 A CN201010575931 A CN 201010575931A CN 101994548 A CN101994548 A CN 101994548A
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- connecting base
- inner casing
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Abstract
The invention relates to an anti-explosion flame arrester. The anti-explosion flame arrester has a hollow jacketed structure which is formed by an inner shell, an outer shell and flange plates fixed on two ends of the inner and outer shells, wherein the two flange plates are provided with a water inlet and a water outlet which are staggered along the length direction; the external end faces of the two flange plates are explosion-separating sides; the inner shell and the outer shell are respectively provided with an upper connecting base and a lower connecting base along the height direction; two sides of the inner and outer shells are fixed with side baffle walls having a through hole so as to form a bead storage cavity; a flame-arresting steel ball is placed in the bead storage cavity of the inner shell; the two side baffle walls are positioned on two sides of the two flange plates; the internal ends of the upper connecting base and the lower connecting base are communicated with the bead storage cavity of the inner shell and the external ends thereof are extended out of the outer shell; threaded connection holes of the upper and lower connecting bases are both explosion-separating sides; two screw plugs are respectively threaded on the threaded connection holes of the upper and lower connecting bases and the inner side of the screw plug is pressed on a pressing plate through a spring; and the pressing plate is pressed on the flame-arresting steel ball. The invention has the advantages of reasonable structure, simple mounting and convenient maintenance.
Description
Technical field
The present invention relates to a kind of Antiexplosion and fire-stopping unit, belong to the safety resistance fire-fighting technique field of exhaust gases of internal combustion engines, coal mine gas discharging and pipeline-like inflammable gas.
Background technique
Flame trap is to be used for stoping the travel of flame of inflammable gas, liquid and high-temperature gas and to prevent tempering and the safety installations that sets off an explosion, the working principle of flame trap and structural design at present mainly based on:
1, heat transfer effect: after flame is by the thin channel of flame retardant bed, will become some tiny flames.Therefore when the design flame retardant bed, enlarge the area of contact of tiny flame and conduit wall as far as possible, augmentation of heat transfer drops to below the burning-point flame temperature rapidly, thereby stops travel of flame.
2, wall effect: burning is not intermolecular direct reaction with blast, but is subjected to exciting of external energy, and molecular bond is destroyed, and produces activated molecule.Activated molecule are split into the life-span weak point again but very active free radicals, and free radicals and other molecules bump against the new product of generation; Simultaneously also producing new free radicals continues to react with other molecules again.When the inflammable gas of burning passed through the thin channel of flame retardant bed, the probability of collision of free radicals and conduit wall increased, and the free radicals of participating in reaction reduces.When passage was too narrow to a certain degree, the collision of free radicals and conduit wall had occupied leading position.Because free radicals quantity sharply reduces, reaction can not be proceeded, and also is that combustion reaction can not continue to propagate by flame trap.
The flame retardant bed of employed all kinds of flame traps mainly adopts gravel class and barrier board or corrugated board structures at present.Gravel class flame trap mainly is made of shell and built-in in the enclosure flame retardant bed, flame retardant bed generally adopts cobble or glass bead, its shell is the hollow circular-tube structure that one one end has land, hollow circular-tube two ends inwall is fixed with the upper and lower sieve sheet of band through hole, and cobble or glass bead are installed between hollow circular-tube and the two sieve sheets in the formed cavity.Its back-fire relief principle is mainly based on wall effect, but because the cobble profile is difficult for unifiedly, makes fire aisle not of uniform size, for reaching back-fire relief effect preferably, and the flame retardant bed of having to usually thicken, thus can strengthen the volume and weight of flame trap.And when adopting glass bead as flame retardant bed, though flame retardant bed profile unanimity makes the fire aisle size identical, the glass bead quality is too crisp, and outer surface has powdered and the trend that progressively diminishes, owing to change fire aisle, and influence the back-fire relief effect.Openly flame trap is to be provided with upper and lower sieve sheet on hollow circular-tube at present, and the sieve sheet is welded on the hollow circular-tube down, and the top sieve sheet is installed on the hollow circular-tube by circlip, though adopt the toughened glass pearl as flame retardant bed, can longly keep fire aisle constant.But because flame trap is to be installed on the outlet pipe of diesel engine by land, and can cause fire aisle to stop up behind the toughened glass pearl carbon distribution, diesel engine power is descended, also can cause and to start shooting when serious.Therefore need often flame trap to be safeguarded, regularly the carbon distribution of flame retardant bed is cleared up, and after safeguarding, clear up, answer dress and flame retardant bed damage parts, losing, all need whole flame trap is removed from outlet pipe, earlier circlip is removed the top sieve sheet is opened, the toughened glass pearl poured out carry out carbon distribution cleaning, will clear up back toughened glass pearl again and be contained in again in the hollow circular-tube, therefore operation is very inconvenient.Moreover the top sieve sheet is installed on the hollow pipe by circlip, and high-temperature gas is annealed circlip easily, causes circlip to decrease ring, makes flame trap work dangerous.
And barrier board or corrugated sheet class flame retardant bed generally are made up of shell and installation stainless steel sheets stack or stainless steel wave card canoe in the enclosure.Its back-fire relief principle is based on heat transfer effect and wall effect, and this type of flame trap exists manufacturing cost height, safeguards the cleaning difficulty, when especially barrier board or corrugated sheet class flame trap are used for internal combustion engine tail gas discharge, almost can't thoroughly clear up carbon distribution.Make product in function, volume, maintainability, manufacture cost and all can't meet the demands on working life for above-mentioned reasons.
Goal of the invention
The purpose of this invention is to provide a kind of rational in infrastructurely, Antiexplosion and fire-stopping unit simple, easy to maintenance is installed.
The present invention is that the technological scheme that achieves the above object is: a kind of Antiexplosion and fire-stopping unit, it is characterized in that: comprise by inner casing, shell and be fixed on inner casing and the flange plate at shell two ends constitutes the hollow jacket structure, described two flange plate interlace along short transverse and are provided with paddle hole, and the exterior edge face of two flange plate is an explosion suppresion surface; Shell and inner casing are fixed with upper connecting base and lower connecting base respectively along short transverse, the side dividing plate of inner casing and inner casing both sides fixing belt through hole constitutes the Chu Zhu chamber, the back-fire relief steel ball is placed in the Chu Zhu chamber of inner casing, the both sides dividing plate is positioned at two inboards of two flange plate, the inner of upper connecting base and lower connecting base communicates with the Chu Zhu chamber of inner casing, shell is extended in the outer end, the tapped hole attachment hole of the threaded connection hole of upper connecting base and lower connecting base is explosion suppresion surface, two plug screws are screwed in respectively on the threaded connection hole of upper connecting base and lower connecting base, and the plug screw inboard is crimped on the pressing plate by spring, and pressing plate is pressed on the back-fire relief steel ball.
Wherein: described plug screw is fixedlyed connected with guide rod, and guide rod passes pressing plate and moving vertically, and the T shape head of guide rod the inner is corresponding to the limited impression on the pressing plate, and the both ends of the spring that is sleeved on the guide rod withstands on respectively on plug screw and the pressing plate.
Antiexplosion and fire-stopping unit of the present invention adopts by inner casing, shell and be fixed on inner casing and hollow jacket structure that shell two ends flange plate constitutes, flange plate by two ends is connected on the exhaust emissions of diesel engine pipe, and the side dividing plate that is fixed on the inner casing both sides forms the Chu Zhu chamber that can place the back-fire relief steel ball with inner casing, by the back-fire relief steel ball that is placed in the Chu Zhu chamber flame of discharging in the tail gas is carried out back-fire relief, and the upper connecting base and the lower connecting base that are fixed on inner casing and the shell are to be provided with along short transverse, and on, lower connecting base is pressed on the back-fire relief steel ball by plug screw and pressing plate respectively, keep the back-fire relief steel ball can not move at inner casing, rational in infrastructure, and when pulling down the plug screw at lower connecting base place, spring and pressing plate in the lower connecting base are promptly tear-away, back-fire relief steel ball in the inner casing Chu Zhu chamber can be broken away from automatically from inner casing under deadweight, very convenient back-fire relief steel ball in the inner casing is emitted, the carbon distribution on the back-fire relief steel ball is thoroughly removed.After installation pressing plate, spring and plug screw are installed in lower connecting base, back-fire relief steel ball after cleaning can be installed from upper connecting base, easy to operate, need not flame trap is removed on the tail gas pipeline of diesel engine, not only be convenient to flame retardant bed is safeguarded, cleared up and multiple dress, and also very convenient the back-fire relief steel ball is supplemented in the Chu Zhu chamber, can makes fire aisle keep unimpeded, can not influence the performance of diesel engine normal output.The present invention only need operate the plug screw on upper connecting base and the lower connecting base, can carry out flame retardant bed is safeguarded that easy accessibility has shortened maintenance time greatly.Flame retardant bed of the present invention adopts the steel ball structure, not only high temperature resistant, the augmentation of heat transfer effect, and fire aisle is stable, and the hollow jacket structure that constitutes of the flange plate by inner casing and shell and two ends can be forced cooling to inner casing and shell by cooling liquid in addition, improved the back-fire relief effect, can not only reduce the volume and the manufacture cost of flame trap, and improve the safety in utilization of flame trap, can satisfy the requirement for restriction of some special industry the flame trap surface temperature.
The present invention is for reaching better mounting or dismounting effect, with plug screw by guide rod and pressing plate and the spring structure that fuses, when connecting base is pulled down plug screw, guide rod is pulled down pressing plate and spring together, when being installed in plug screw on the connecting base equally, also pressing plate and spring are installed in the connecting base, can cause the minimizing of accessory, and loading and unloading are quick by guide rod.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of Antiexplosion and fire-stopping unit of the present invention.
Fig. 2 is the A-A sectional structure schematic representation of Fig. 1.
Fig. 3 is the B-B sectional structure schematic representation of Fig. 2.
Wherein: 1-flange plate, 1-1-seal groove, 2-shell, 3-plug screw, 4-inner casing, 5-side dividing plate, 6-guide rod, 7-sealing gasket, 8-spring, 9-pressing plate, 10-upper connecting base, 11-paddle hole, 12-back-fire relief steel ball, 13-transition bend pipe, 14-lower connecting base.
Specific embodiment
See shown in Fig. 1～3, Antiexplosion and fire-stopping unit of the present invention, comprise by inner casing 4, shell 2 and be fixed on inner casing 4 and shell 2 two ends flange plate 1 constitute the hollow jacket structure, inner casing 4 and shell 2 are by the flange plate 1 welding firmware at two ends, two flange plate 1 interlace along short transverse and are provided with paddle hole 11, as the water intake bottom of a flange plate 1 therein, and water outlet is arranged on the top of another flange plate 1; Or the water intake top of a flange plate 1 therein, and water outlet is arranged on the bottom of another flange plate 1, with after outside circuit cooling water pipeline is communicated with, inner casing 4 and shell 2 is forced cooling, the temperature on reduction shell 2 surfaces by paddle hole 11.The exterior edge face of two flange plate 1 of the present invention is an explosion suppresion surface, and the explosion suppresion surface of flange plate 1 is provided with the seal groove 1-1 that is used to install seal ring, two ends flange plate 1 is provided with mounting hole, by fastening piece the flame trap sealing is installed on the outlet pipe of diesel engine, flame trap of the present invention can be installed in and require explosion-proof workplace, as under the coal mine, load and unload in all kinds of places such as depot of containing explosive mixture and the outlet pipe of the various internal combustion locomotive of transport operation on.
See shown in Fig. 1～3, shell 2 of the present invention and inner casing 4 are fixed with upper connecting base 10 and lower connecting base 14 respectively along short transverse, the top of shell 2 and inner casing 4 is fixed with upper connecting base 10, the bottom of shell 2 and inner casing 4 is fixed with lower connecting base 14, can decide according to the mounting point of flame trap, inner casing 4 both sides are fixed with the side dividing plate 5 of band through hole, through hole on the side dividing plate 5 can be the through hole of a plurality of strips, through hole by strip make gas by and block back-fire relief steel ball 12, side dividing plate 5 is welded on the inner casing 4 and with inner casing 4 and constitutes the Chu Zhu chamber, back-fire relief steel ball 12 is placed in the Chu Zhu chamber of inner casing 4, both sides dividing plate 5 is positioned at two inboards of two flange plate 1, the gas that needs back-fire relief enters the Chu Zhu chamber by a flange plate 1 and through the through hole of inner casing 4 side dividing plates 5, behind back-fire relief steel ball 12 formed fire aisles, discharge from opposite side dividing plate 5 through holes and flange plate 1 through the cooling and the gas of collision.See shown in Fig. 1～3, the inner of upper connecting base 10 of the present invention and lower connecting base 14 communicates with the Chu Zhu chamber of inner casing 4, shell 2 is extended in the outer end, the tapped hole attachment hole of the threaded connection hole of upper connecting base 10 and lower connecting base 14 is explosion suppresion surface, two plug screws 3 are screwed in respectively on the threaded connection hole of upper connecting base 10 and lower connecting base 14, and sealing gasket 7 is installed between upper connecting base 10 end faces and lower connecting base 14 and the plug screw 3, plug screw 3 inboards are crimped on the pressing plate 9 by spring 8, when flame trap is rocked, elastic force by spring 8 can not move back-fire relief steel ball 12, keeps fire aisle relatively stable.See shown in Fig. 2,3, lower connecting base 14 of the present invention also has transition bend pipe 13, transition bend pipe 13 is fixedlyed connected with shell 2 with inner casing 4, transition bend pipe 13 the inners communicate with the Chu Zhu chamber of inner casing 4, back-fire relief steel ball 12 is housed in the transition bend pipe 13, when same plug screw 3 is installed in lower connecting base 14, be pressed on the back-fire relief steel ball 12, can set according to the installing space on the outlet pipe of flame trap by interior side guide 9.
See Fig. 2,3 show, plug screw 3 of the present invention is fixedlyed connected with guide rod 6, this guide rod 6 can adopt screw rod as shown in Figure 2, guide rod 6 is screwed in back and fixing by welding on the plug screw 3, and guide rod 6 passes pressing plate 9 and can move vertically, the T shape head of guide rod 6 the inners is corresponding to the limited impression on the pressing plate 9, spring 8 two ends that are sleeved on the guide rod 6 withstand on respectively on plug screw 3 and the pressing plate 9, these spring 8 two ends can be separately positioned in the spring base hole on plug screw 3 and the pressing plate 9, the structure that spring 8 and pressing plate 9 is linked into an integrated entity by guide rod 6, and can not cause losing of part, when plug screw is screwed on upper connecting base 10 and the lower connecting base 14, by spring 8 pressing plate 9 is pressed to back-fire relief steel ball 12, make the steel ball that blocks water keep motionless, and can reach dismounting plug screw 3 purpose fast and easily.
Flame trap of the present invention also can be used on the flameproof apparatus of coal mine gas discharging and pipeline-like inflammable gas.
Claims (4)
1. Antiexplosion and fire-stopping unit, it is characterized in that: comprise by inner casing (4), shell (2) and be fixed on inner casing (4) and the flange plate (1) at shell (2) two ends constitutes the hollow jacket structure, described two flange plate (1) interlace along short transverse and are provided with paddle hole (11), and the exterior edge face of two flange plate (1) is an explosion suppresion surface; Shell (2) and inner casing (4) are fixed with upper connecting base (10) and lower connecting base (14) respectively along short transverse, the side dividing plate (5) of inner casing (4) and inner casing (4) both sides fixing belt through hole constitutes the Chu Zhu chamber, back-fire relief steel ball (12) is placed in the Chu Zhu chamber of inner casing (4), both sides dividing plate (5) is positioned at two inboards of two flange plate (1), the inner of upper connecting base (10) and lower connecting base (14) communicates with the Chu Zhu chamber of inner casing (4), shell (2) is extended in the outer end, the tapped hole attachment hole of the threaded connection hole of upper connecting base (10) and lower connecting base (14) is explosion suppresion surface, two plug screws (3) are screwed in respectively on the threaded connection hole of upper connecting base (10) and lower connecting base (14), and plug screw (3) is inboard to be crimped on the pressing plate (9) by spring (8), and pressing plate (9) is pressed on the back-fire relief steel ball (12).
2. Antiexplosion and fire-stopping unit according to claim 1, it is characterized in that: described plug screw (3) is fixedlyed connected with guide rod (6), and guide rod (6) passes pressing plate (9) and can move vertically, the T shape head of guide rod (6) the inner is corresponding to the limited impression on the pressing plate (9), and spring (8) two ends that are sleeved on the guide rod (6) withstand on respectively on plug screw (3) and the pressing plate (9).
3. Antiexplosion and fire-stopping unit according to claim 1, it is characterized in that: described lower connecting base (14) also has transition bend pipe (13), transition bend pipe (13) is fixedlyed connected with shell (2) with inner casing (4), transition bend pipe (13) is inner to communicate with the Chu Zhu chamber of inner casing (4), and back-fire relief steel ball (12) is housed in the transition bend pipe (13).
4. Antiexplosion and fire-stopping unit according to claim 1 is characterized in that: the explosion suppresion surface of described flange plate (1) is provided with seal groove (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010575931 CN101994548B (en) | 2010-12-07 | 2010-12-07 | Anti-explosion flame arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010575931 CN101994548B (en) | 2010-12-07 | 2010-12-07 | Anti-explosion flame arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101994548A true CN101994548A (en) | 2011-03-30 |
| CN101994548B CN101994548B (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010575931 Expired - Fee Related CN101994548B (en) | 2010-12-07 | 2010-12-07 | Anti-explosion flame arrester |
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| Country | Link |
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| CN (1) | CN101994548B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203083A (en) * | 2013-03-28 | 2013-07-17 | 顾德兵 | Flame arrester specially used for pipelines |
| CN115845294A (en) * | 2021-09-24 | 2023-03-28 | 中国石油化工股份有限公司 | Fire arrester capable of automatically eliminating defects of fire-retardant part |
| CN115845295A (en) * | 2021-09-24 | 2023-03-28 | 中国石油化工股份有限公司 | Particle flame arrester |
| CN115845296A (en) * | 2021-09-24 | 2023-03-28 | 中国石油化工股份有限公司 | Particle flame arrester capable of replacing flame-retardant particles on line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3702487A1 (en) * | 1987-01-28 | 1988-08-11 | Bedia Maschf Verwalt | Explosion-proof exhaust-gas filter catalyzer for diesel engines in underground operation |
| US5145360A (en) * | 1990-12-20 | 1992-09-08 | Rajewski Robert K | Detonation arrestor |
| CN2593823Y (en) * | 2003-04-25 | 2003-12-24 | 张云录 | Pipe fire eliminator |
| CN1850311A (en) * | 2006-03-31 | 2006-10-25 | 周斌 | Novel fire-retardant core |
| CN200943856Y (en) * | 2006-08-25 | 2007-09-05 | 王水庆 | Fire-resistant device |
| CN201874645U (en) * | 2010-12-07 | 2011-06-22 | 常州澳丰机电制造有限公司 | Explosion-proof flame arrester |
-
2010
- 2010-12-07 CN CN 201010575931 patent/CN101994548B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3702487A1 (en) * | 1987-01-28 | 1988-08-11 | Bedia Maschf Verwalt | Explosion-proof exhaust-gas filter catalyzer for diesel engines in underground operation |
| US5145360A (en) * | 1990-12-20 | 1992-09-08 | Rajewski Robert K | Detonation arrestor |
| CN2593823Y (en) * | 2003-04-25 | 2003-12-24 | 张云录 | Pipe fire eliminator |
| CN1850311A (en) * | 2006-03-31 | 2006-10-25 | 周斌 | Novel fire-retardant core |
| CN200943856Y (en) * | 2006-08-25 | 2007-09-05 | 王水庆 | Fire-resistant device |
| CN201874645U (en) * | 2010-12-07 | 2011-06-22 | 常州澳丰机电制造有限公司 | Explosion-proof flame arrester |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203083A (en) * | 2013-03-28 | 2013-07-17 | 顾德兵 | Flame arrester specially used for pipelines |
| CN115845294A (en) * | 2021-09-24 | 2023-03-28 | 中国石油化工股份有限公司 | Fire arrester capable of automatically eliminating defects of fire-retardant part |
| CN115845295A (en) * | 2021-09-24 | 2023-03-28 | 中国石油化工股份有限公司 | Particle flame arrester |
| CN115845296A (en) * | 2021-09-24 | 2023-03-28 | 中国石油化工股份有限公司 | Particle flame arrester capable of replacing flame-retardant particles on line |
| CN115845294B (en) * | 2021-09-24 | 2024-01-12 | 中国石油化工股份有限公司 | Flame arrester capable of automatically eliminating defects of flame retardant part |
| CN115845296B (en) * | 2021-09-24 | 2024-01-12 | 中国石油化工股份有限公司 | Particle flame arrester capable of replacing flame-retarding particles in line |
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| CN101994548B (en) | 2012-12-12 |
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