CN115845296B - Particle flame arrester capable of replacing flame-retarding particles in line - Google Patents
Particle flame arrester capable of replacing flame-retarding particles in line Download PDFInfo
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- CN115845296B CN115845296B CN202111123543.9A CN202111123543A CN115845296B CN 115845296 B CN115845296 B CN 115845296B CN 202111123543 A CN202111123543 A CN 202111123543A CN 115845296 B CN115845296 B CN 115845296B
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- 239000002245 particle Substances 0.000 title claims abstract description 280
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 239000003063 flame retardant Substances 0.000 claims description 119
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 106
- 238000005192 partition Methods 0.000 claims description 34
- 230000004888 barrier function Effects 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 239000000523 sample Substances 0.000 claims description 8
- 239000002808 molecular sieve Substances 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000012621 metal-organic framework Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 abstract description 9
- 238000007599 discharging Methods 0.000 abstract description 8
- 238000004880 explosion Methods 0.000 description 11
- 230000009970 fire resistant effect Effects 0.000 description 11
- 239000008187 granular material Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 230000003670 easy-to-clean Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of fire-retarding and explosion-retarding, and discloses a particle fire-retarding device capable of replacing fire-retarding particles in a line, which comprises a first shell, a second shell and a fire-retarding section positioned between the first shell and the second shell, wherein the fire-retarding section is provided with a fire-retarding section shell which is hollow and is provided with two fire-retarding section openings facing the first shell and the second shell respectively, the fire-retarding section comprises two blocking parts arranged at the openings of the two fire-retarding sections respectively so as to define a fire-retarding cavity between the two blocking parts, a plurality of openings are formed on the blocking parts, and the fire-retarding particles are filled in the fire-retarding cavity; the fire-retarding part comprises a fire-retarding particle replacing structure, and comprises a fire-retarding particle discharging port and a fire-retarding particle supplementing port, wherein the fire-retarding particle discharging port is formed at the bottom of the fire-retarding section shell, the fire-retarding particle supplementing port is formed at the top of the fire-retarding section shell, and the fire-retarding part further comprises a discharging valve for controlling the fire-retarding particle discharging port to be opened and closed and a supplementing valve for controlling the fire-retarding particle supplementing port to be opened and closed.
Description
Technical Field
The invention relates to the technical field of fire and explosion resistance, in particular to a particle flame arrester capable of replacing fire-retarding particles in a linear manner.
Background
With the increasing of environmental protection standards in China, various chemical enterprises begin to implement the collection and treatment of VOCs in oil storage systems in a large area. The method is that a plurality of storage tanks in a tank field, even the storage tanks in the whole factory are connected into a whole through gas phase communication pipelines, and VOCs are collected in a concentrated mode and then treated. After the storage tanks are communicated with each other in a gas phase mode, flames can be spread through gas group communication pipelines after a single tank is in fire, and a great risk of group tank fire occurs. Therefore, the requirements of flame-retardant and explosion-proof technology among complex pipelines are improved, the protection means adopted by the gas-phase communicating pipelines of the storage tank at present mainly comprise a corrugated plate type flame arrester, wherein the most commonly used flame arrester is the corrugated plate type flame arrester, and the corrugated plate type flame arrester is inconvenient to detach and install because the flame arrester is usually arranged at the top of the tank and near combustion equipment and the like. In addition, the flame arresters are generally installed on the tank top or by the position of the burning equipment, and the disassembly and the installation are not convenient, so that the flame arresters which can realize the on-line replacement of the flame retardant components have great significance if the flame arresters can be developed.
Disclosure of Invention
The invention aims to provide a particle flame arrester with wire-replaceable flame retardant particles, which is difficult to block, easy to assemble and disassemble and easy to clean, wherein the inside of the particle flame arrester with the wire-replaceable flame retardant particles is filled with the flame retardant particles, and the particle flame arrester with the wire-replaceable flame retardant particles can be replaced on line without detaching the particle flame arrester with the wire-replaceable flame retardant particles from a pipeline or a tank body.
In order to achieve the above object, the present invention provides a particle flame arrestor with wire-replaceable flame-retardant particles, the particle flame arrestor with wire-replaceable flame-retardant particles comprising a first shell, a second shell, and a flame-retardant section between the first shell and the second shell, the flame-retardant section having a flame-retardant section shell that is hollow and has two flame-retardant section openings that are respectively directed toward the first shell and the second shell, the flame-retardant section further comprising two barrier sections that are respectively disposed at the two flame-retardant section openings to define a flame-retardant cavity therebetween, the barrier sections having a plurality of openings formed therein, the flame-retardant cavity being filled with flame-retardant particles; the fire-retarding part also comprises a fire-retarding particle replacement structure, the fire-retarding particle replacement structure comprises a fire-retarding particle discharge outlet and a fire-retarding particle supply opening, the fire-retarding particle discharge outlet is formed at the bottom of the fire-retarding section shell, the fire-retarding particle supply opening is formed at the top of the fire-retarding section shell, and the fire-retarding part also comprises a discharge valve for controlling the fire-retarding particle discharge outlet to be opened and closed and a supply valve for controlling the fire-retarding particle supply opening to be opened and closed.
Preferably, the firestop particle replacement structure includes a discharge passage extending from the firestop particle discharge outlet, the discharge valve being mounted on the discharge passage; the fire-retarding grain replacement structure further comprises a replenishing channel extending from the fire-retarding grain replenishing port, and the replenishing valve is arranged on the replenishing channel.
Preferably, the discharge passage and the replenishment passage are each in a straight cylindrical shape extending in a vertical direction.
Preferably, the fire-retarding granule replacing structure further comprises a fire-retarding section connector arranged at the outer end of the discharging channel and/or the outer end of the supplying channel; the particle fire arrestor capable of replacing fire-retarding particles in a linear manner further comprises a charging basket, and a charging basket connector capable of being connected with the fire-retarding section connector in a matched mode is arranged on the charging basket.
Preferably, a first barrel opening and a barrel channel extending from the first barrel opening are formed on the barrel, and a barrel valve is arranged on the barrel channel and used for controlling the opening and closing of a barrel opening; the charging basket connector is arranged at the outer end of the charging basket channel.
Preferably, the particulate flame arrestor of the wire-replaceable flame arrestor further comprises a pressure differential detection section for detecting a pressure differential between the gas entering the flame arrestor section and exiting the flame arrestor section.
Preferably, the differential pressure detecting section includes a first pressure detector mounted to the first housing and into which the detection probe extends, and a second pressure detector mounted to the second housing and into which the detection probe extends.
Preferably, the firestop cavity comprises at least two partitions in a direction from one of the firestop section openings to the other of the firestop section openings; and each partition is provided with the fire-retarding grain replacement structure.
Preferably, the particle size of the fire-retarding particles filled in the first one of the partitions is larger than the particle size of the fire-retarding particles filled in the second one of the partitions.
Preferably, the firestop cavity comprises at least three partitions in a direction from one of the firestop section openings to the other of the firestop section openings; the particle size of the fire-retarding particles filled in the partition located at the outer side is larger than the particle size of the fire-retarding particles filled in the partition located at the inner side in the direction from the opening of the fire-retarding section to the center.
Preferably, the fire-resistant sections extend along a straight line, the interfaces between the sections being perpendicular to the direction of extension of the fire-resistant sections, a wire mesh extending along the interfaces being provided at each of the interfaces.
Preferably, the fire-retarding particles are a combination of one or more of the following: metals, metal organic framework materials, molecular sieve materials, natural zeolites and ceramics.
Preferably, the first and second housings are respectively formed with inner side openings at sides facing each other, the first and second housings each having an expanded section at the inner side opening side, the expanded section being formed to have a gradually increasing cross-sectional area in a direction toward the inner side opening.
Preferably, the expansion section is formed as a truncated cone cylinder with two open ends, and the first housing and the second housing each further comprise a cylindrical section connected with the expansion section, the cylindrical section extending from a side edge of the expansion section facing away from the inner opening toward the direction facing away from the inner opening along a rotation axis direction of the truncated cone cylinder.
Preferably, the fire-blocking section housing has expansion sections at both ends, the expansion sections being formed to have a gradually increasing cross-sectional area in a direction away from the blocking section.
Preferably, the expansion section is formed as a truncated cone cylinder with two open ends, and the fire-blocking section housing further has a cylindrical section located between the two expansion sections.
Preferably, the barrier comprises a rigid barrier and a wire mesh located inside the barrier.
Preferably, the first housing and the second housing have a symmetrical structure to each other.
Preferably, the first housing and the second housing are each formed with a mounting flange on a side facing away from each other.
According to the granular fire arrestor capable of replacing the fire-retarding granules in the wire, the structure is simple, granular fire-retarding materials are used in the fire-retarding section, the relative surface area of the granular fire-retarding materials is large, the heat exchange area is large, the heat conduction is easier, the fire-retarding performance is good, and the granular fire-retarding materials enable the fire-retarding section to have the advantages of being difficult to block and easy to clean; and the fire-retarding part also comprises a fire-retarding particle replacing structure, when the fire-retarding particles in the fire-retarding cavity need to be replaced, the discharging valve can be opened first, the fire-retarding particles in the fire-retarding cavity can be discharged from the fire-retarding particle discharging port, after the fire-retarding particles in the fire-retarding cavity are all discharged, the discharging valve is closed, then the fire-retarding particle supplementing opening of the supplementing valve is controlled, new fire-retarding particles are supplemented into the fire-retarding cavity through the fire-retarding particle supplementing opening, after the new fire-retarding particles are completely filled, the supplementing valve is controlled to enable the fire-retarding particle supplementing opening to be closed, the particle fire-retarding device capable of replacing the fire-retarding particles in a line can be put into use again, and in the process of replacing the fire-retarding particles, the particle fire-retarding device capable of replacing the fire-retarding particles in a line is not required to be detached from a pipeline, a tank body or a device, so that the online replacement of the fire-retarding particles can be conveniently realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate and explain the invention and are not to be construed as limiting the invention. In the drawings:
FIG. 1 shows a schematic structural view of a particulate flame arrestor with wire-exchangeable flame arrestor particles, according to an embodiment of the invention, in which a charging basket is not shown;
FIG. 2 illustrates a schematic view of the particle flame arrestor of the wire-replaceable flame arrestor of FIG. 1 with the discharge of flame arrestor particles;
FIG. 3 is a schematic view of the particle flame arrestor of the wire-exchangeable flame arrestor of FIG. 1 with the flame arrestor being replenished with flame arrestor particles;
FIG. 4 shows a schematic structural view of a particle flame arrestor with wire-exchangeable flame arrestor particles, according to another embodiment of the invention, in which a charging basket is not shown;
fig. 5 shows a schematic structural view of a particle flame arrestor with wire-exchangeable flame arrestor particles according to a further embodiment of the invention, in which the charging basket is not shown.
Description of the reference numerals
1 a first housing; 2 a second housing; 4, a fire-resistant section; 5 fire-retardant cavity; 8, expanding the section; 9 cylinder sections; 14 silk screen; 15 mounting a flange; 19 fire-resistant section shell; 24 fire-retarding granule discharge outlet; 25 fire-retardant granule supply ports; 26 discharge channels; 27 discharge valve; 28 a supply passage; 29 replenishing a valve; 30 fire-resistant section connector; 31 charging barrels; 32 charging basket connectors; 33 charging basket channels; 34 charging basket valve; 35 a first barrel opening; a first pressure gauge 36; 37 second pressure gauge
Detailed Description
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without collision.
In the present invention, it is to be understood that the terms "facing away", "facing toward", "circumferential", "axial", etc. indicate an orientation or a positional relationship based on that shown in the drawings, and also correspond to an orientation or a positional relationship in actual use; "inner and outer" refer to inner and outer relative to the contour of the components themselves, and do not indicate that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The invention provides a particle flame arrester with wire-replaceable flame-retarding particles, which comprises a first shell 1, a second shell 2 and a flame-retarding section 4 positioned between the first shell 1 and the second shell 2, wherein the flame-retarding section 4 is provided with a flame-retarding section shell 19, the flame-retarding section shell 19 is hollow and is provided with two flame-retarding section openings facing the first shell 1 and the second shell 2 respectively, the flame-retarding section 4 also comprises two blocking parts respectively arranged at the two flame-retarding section openings so as to define a flame-retarding cavity 5 between the two blocking parts, a plurality of openings are formed on the blocking parts, and the flame-retarding cavity 5 is filled with flame-retarding particles; the firestop portion 4 further includes a firestop particle replacement structure including a firestop particle discharge port 24 and a firestop particle replenishment port 25, the firestop particle discharge port 24 is formed at the bottom of the firestop section housing 19, the firestop particle replenishment port 25 is formed at the top of the firestop section housing 19, and the firestop portion 4 further includes a discharge valve 27 for controlling the opening and closing of the firestop particle discharge port 24 and a replenishment valve 29 for controlling the opening and closing of the firestop particle replenishment port 25.
In the particle flame arrester of the present invention, when a fire or explosion occurs on one side of the particle flame arrester of the wire-replaceable flame arrester particles, the flame passes through the first shell 1 or the second shell 2, then when the flame passes through the flame arrester section 4 again, the flame exchanges heat with the flame arrester particles in the fire arrester section cavity 5 from one flame arrester section opening to the other flame arrester section opening, the temperature is reduced, and the free radicals generated by the combustion reaction are quenched on the surface of the particles, so that the concentration of the free radicals of the combustion reaction is reduced, and when the temperature and the concentration of the free radicals are low, the combustion is terminated, thereby effectively preventing the flame or explosion from spreading to the other side and causing larger accidents.
According to the granular fire arrestor capable of replacing the fire-retarding granules in the wire, the structure is simple, granular fire-retarding materials are used in the fire-retarding section 4, the relative surface area of the granular fire-retarding materials is large, the heat exchange area is large, the heat conduction is easier, the fire-retarding performance is good, and the granular fire-retarding materials enable the fire-retarding section 4 to have the advantages of being difficult to block and easy to clean; in addition, the fire stopping part of the invention also comprises a fire stopping particle replacing structure, when the fire stopping particles in the fire stopping cavity 5 need to be replaced, the discharge valve 27 can be opened firstly, the fire stopping particles in the fire stopping cavity 5 can be discharged from the fire stopping particle discharge outlet 24, after the fire stopping particles in the fire stopping cavity 5 are discharged, the discharge valve 27 is closed, then the new fire stopping particles are controlled to be supplied to the fire stopping cavity 5 through the fire stopping particle supplying opening 25, after the new fire stopping particles are filled, the fire stopping particle supplying opening 25 is closed by the fire stopping particle supplying opening 25, the particle fire stopping device capable of replacing the fire stopping particles in a line can be put into use again, and in the process of replacing the fire stopping particles, the particle fire stopping device capable of replacing the fire stopping particles in a line does not need to be detached from a pipeline, a tank body or a device, so that the online replacement of the fire stopping particles can be conveniently realized.
Specifically, in some embodiments, the firestop particle replacement structure includes a discharge passage 26 extending from the firestop particle discharge outlet 24, and the discharge valve 27 is mounted on the discharge passage 26; the fire-retarding particle replacement structure further includes a supply passage 28 extending from the fire-retarding particle supply port 25, and the supply valve 29 is installed on the supply passage 28.
To facilitate transport of firestop particles within the passage, both the discharge passage 26 and the replenishment passage 28 are straight cylinders extending in a vertical direction. Further, in the drawing, the discharge passage 26 and the replenishment passage 28 are each formed in a tubular shape.
Preferably, the fire-retarding granule replacement structure further comprises a fire-retarding section connector 30 provided at the outer end of the discharge passage 26 and/or the outer end of the replenishment passage 28; the particle flame arrester capable of replacing flame retardant particles in a linear manner further comprises a charging basket 31, and the charging basket 31 is provided with a charging basket connector 32 which can be matched and connected with the flame retardant section connector 30. The storage bucket 31 is used for holding the fire-retardant granule that waits to fill in the fire-retardant chamber 5, or is used for holding the fire-retardant granule that discharges from the fire-retardant chamber 5, and through the cooperation connection structure of fire-retardant section connector 30 and storage bucket connector 32, can realize the quick-operation joint of storage bucket 31 and fire-retardant section 4, for example, fire-retardant section connector 30 and storage bucket connector 32 can all adopt the pull rod formula quick-operation joint to realize no instrument quick-operation joint.
Further, in some embodiments, a first barrel opening 35 is formed on the barrel 31 and a barrel channel 33 extends from the first barrel opening 35, and a barrel valve 34 is disposed on the barrel channel 33 for controlling the opening and closing of the one barrel opening 35; the barrel connector 32 is disposed at the outer end of the barrel channel 33. In addition, in order to facilitate the fire-retardant particles entering the barrel 31 or being discharged from the barrel 31, the barrel channel 33 may be in a straight barrel shape, for example, in a straight pipe shape as shown in the drawing.
Further, in some embodiments, the barrel 31 further has a second barrel opening and a barrel cover for removably closing the second barrel opening, for example, the second barrel opening may be opposite to the first barrel opening 35, and the second barrel opening may be relatively larger, for example, the barrel 31 may be fully opened on a side opposite to the first barrel opening 35 for convenient replenishment of new fire resistant particles into the barrel 31, or for convenient dumping of waste fire resistant particles contained in the barrel 31.
Referring to fig. 1 to 3, two buckets 31 may be provided for dedicated mating connection with the discharge passage and the replenishment passage, respectively.
Referring to fig. 1, in some embodiments, the particulate flame arrestor of the wire-replaceable flame arrestor particles further includes a pressure differential detection portion for detecting a pressure differential between the gas entering the flame-arrestor section 4 and exiting the flame-arrestor section 4. Therefore, the working condition of the fire-retarding section 4 can be monitored through the pressure difference detection part, if the fire-retarding section 4 is blocked and cannot continue to work normally, the pressure difference value detected by the pressure difference detection part can be increased, and a worker can judge whether the fire-retarding section 4 is blocked or not according to the detected pressure difference value, and whether fire-retarding particles in the fire-retarding cavity 5 need to be replaced or not.
For example, alternatively, the differential pressure detecting section includes a first pressure detector 36 and a second pressure detector 37, the first pressure detector 36 being mounted to the first housing 1 and the detection probe extending into the interior of the first housing 1, the second pressure detector 37 being mounted to the second housing 2 and the detection probe extending into the interior of the second housing 2.
Preferably, the first pressure detector 36 and the second pressure detector 37 are installed as close to the fire-retarding section 4 as possible, and the particle fire-retarding device capable of replacing fire-retarding particles with wires may further comprise a control unit and an alarm unit, the signal output end of the pressure difference detecting part may be electrically connected with the signal input end of the control unit, the signal output end of the control unit is electrically connected with the signal input end of the alarm unit, and the control unit judges whether the degree of replacing the fire-retarding particles is required after receiving the pressure difference detected by the first pressure detector 36 and the second pressure detector 37, for example, when the pressure difference reaches a certain value, sends a signal to the alarm unit so that the alarm unit gives an alarm to remind a worker to replace the fire-retarding particles.
And, preferably, the firestop cavity 5 comprises at least two partitions along the direction from one of the firestop section openings to the other; and each partition is provided with the fire-retarding grain replacement structure. For example, referring to the figure, in this embodiment, the firestop cavity 5 includes two partitions, and both partitions are provided with firestop particle replacement structures, so that on-line replacement of firestop particles in each partition can be performed respectively, and thus, there is a benefit that, when the firestop particles in one of the partitions are subjected to on-line replacement, the partition is inevitably caused to temporarily lose the firestop capability and not work, but the other partition is still filled with the firestop particles, and still the firestop effect can be achieved, thereby ensuring that the particle firestop device capable of replacing the firestop particles in the line retains a certain firestop effect.
Further preferably, the particle size of the fire-retarding particles filled in the first one of the partitions is larger than the particle size of the fire-retarding particles filled in the second one of the partitions in a direction from one of the fire-retarding section openings to the other one of the fire-retarding section openings.
In this case, the fire-retarding chamber 5 has a plurality of partitions, so that the flame sequentially passes through the partitions from one opening of the fire-retarding section to the other opening of the fire-retarding section, specifically, the first partition is passed through and then the second partition, in the first partition, the particle size of the fire-retarding particles is larger, so that the pressure wave and the flame are decoupled, the detonation is converted into the detonation, the partition (bed) filled with the fire-retarding particles with larger particle size is resistant to the explosion impact, the deformation resistance of the bed is stronger, and in the second subsequent partition, the particle size of the fire-retarding particles is smaller, the thermal conductivity is higher, the flame temperature can be reduced more rapidly, the quenching of the flame is realized, and the composite arrangement of the fire-retarding section 4 with the partitions has better fire-retarding and explosion-retarding effects.
More preferably, the firestop cavity 5 comprises at least three partitions in the direction from one opening of the firestop section to the other; the particle size of the fire-retarding particles filled in the partition located at the outer side is larger than the particle size of the fire-retarding particles filled in the partition located at the inner side in the direction from the opening of the fire-retarding section to the center. Thereby, no matter whether flame enters from the first shell 1 or the second shell 2, a better flame-retarding and explosion-retarding effect can be obtained in the flame-retarding section 4; at this time, the particle flame arrester with the wire-replaceable flame retardant particles is used as a particle flame arrester with the two-way wire-replaceable flame retardant particles, and has no requirement on the installation direction.
Alternatively, the firestop cavity 5 may comprise three zones; the sizes of the fire-retarding particles filled in the subareas positioned at the two sides are equal and are larger than those of the fire-retarding particles filled in the subareas positioned at the center. In this case, the firestop chamber 5 has a completely symmetrical structure.
The fire-resistant sections 4 may extend along a straight line, or the central axis of the fire-resistant sections 4 may extend along a straight line, the interfaces between the sections are perpendicular to the extending direction of the fire-resistant sections 4, and separation screens extending along the interfaces are arranged at the interfaces to separate groups or particles in the sections, so as to form a plurality of fire-resistant beds. The separation screen may be a high temperature resistant wire screen; the extension direction of the discharge channel 26 and the replenishment channel 28 is perpendicular to the extension direction of the fire-blocking section 4.
For the selection of fire-blocking particles, the fire-blocking particles are one or a combination of more of the following: metals, metal organic framework materials, molecular sieve materials, natural zeolites and ceramics.
The material of the fire-retarding particles in each partition can be the same or different. For example, as one embodiment, the fire-retarding chamber 5 includes three partitions, the fire-retarding particles filled in the two partitions located at both sides are alumina ceramic particles having a particle size of 5mm, and the fire-retarding particles filled in the partition located at the center are stainless steel balls having a particle size of 2 mm.
Also, as an embodiment, referring to the figure, in the particle flame arrestor of the wire-replaceable flame retardant particles, the first and second cases 1 and 2 are respectively formed with inner side openings at sides facing each other, the first and second cases 1 and 2 each have an expansion section 8 at the inner side opening side, the expansion section 8 being formed to have a gradually increasing cross-sectional area in a direction toward the inner side opening. Therefore, when a fire disaster or explosion occurs on one side of the particle flame arrester capable of replacing flame retardant particles in a linear manner, the flame passes through the expansion section 8 of the first shell 1 or the second shell 2, and the cross section area of the expansion section 8 towards the flame retardant section 4 is gradually increased, so that the flow area of the flame is gradually increased, the advancing speed and the pressure of the flame are gradually reduced, and the flame retardant and explosion retardant effect is improved.
Further specifically, in this embodiment, the expansion section 8 is formed as a truncated cone cylinder with both ends open, and the first housing 1 and the second housing 2 each further include a cylindrical section 9 connected to the expansion section 8, the cylindrical section 9 extending from a side edge of the expansion section 8 facing away from the inner opening toward the direction facing away from the inner opening along the rotation axis direction of the truncated cone cylinder.
The ratio of the inner diameter of the inner opening end of the expansion section 8 to the inner diameter of the end deviating from the inner opening end is preferably controlled to be 1.5-4, so that the effect of reducing the flame advancing speed and the pressure can be better achieved, and meanwhile, the processing difficulty and the cost of the expansion section 8 are not excessively high, and the structural stability of the particle flame arrester capable of replacing flame-retarding particles in a linear manner is not deteriorated. Further preferably, the ratio of the inner diameter of the inner open end of the expansion section 8 to the inner diameter of the end facing away from the inner opening is preferably controlled to be 2.2-2.8.
Alternatively, as another embodiment, the fire-blocking section housing 19 has expansion sections 8 at both ends, the expansion sections 8 being formed to have a gradually increasing cross-sectional area in a direction away from the blocking portion. Also, from this, when the particle flame arrester of the removable fire-retardant particle of line takes place the conflagration or explodes, behind first casing 1 or second casing 2 of flame, when getting into fire-retardant section 4, in the expansion section 8 first, because of expansion section 8 deviates from the cross-sectional area of blocking portion direction and increases gradually, the flow area of flame increases gradually, and the rate of advance and the pressure of flame reduce gradually, are favorable to improving fire-retardant and explosion-proof effect.
Further specifically, in the present embodiment, the expansion section 8 is formed as a truncated cone cylinder with both ends open, and the fire-blocking section housing 19 further has a cylindrical section located between the two expansion sections 8. And wherein, the ratio of the inner diameter of the expansion section 8 at the end with large cross-sectional area to the inner diameter at the end with small cross-sectional area is preferably controlled to be 1.2-2, thereby obtaining better effect of reducing flame advancing speed and pressure, and simultaneously not causing excessive processing difficulty and cost of the expansion section 8 and poor structural stability of the particle flame arrester capable of replacing flame-retarding particles in a line. Further preferably, the ratio of the inner diameter of the expansion section 8 at the end of the large cross-sectional area to the inner diameter at the end of the small cross-sectional area is preferably controlled to be 1.4-1.7.
Also, preferably, the first housing 1 and the second housing 2 have a symmetrical structure to each other. For example, referring to fig. 1, the first casing 1 and the second casing 2 are completely symmetrical in shape and size, the outer diameters of the cylindrical fire-blocking sections 4 are substantially equal at the inner opening of the expansion section 8, and the first casing 1, the second casing 2 and the fire-blocking sections 4 are coaxially arranged. Alternatively, the first casing 1 and the second casing 2 are completely symmetrical in shape and size, are cylindrical, and the fire-blocking section 4 has an expansion section 8 symmetrically disposed at both ends, is formed in a cylindrical shape at the center, and the first casing 1, the second casing 2 and the fire-blocking section 4 are coaxially disposed
In addition, the first housing 1 and the second housing 2 may each be formed with a mounting flange 15 on a side facing away from each other for mounting the particle flame arrestor of the wire-exchangeable flame arrestor particles to a corresponding pipe or device.
In order to increase the resistance of the barrier to burst deformation, it is preferred that the barrier comprises a rigid barrier and a wire mesh 14 located inside the barrier. The wire mesh 14 may be a high-temperature-resistant mesh wire mesh for limiting the fire-retarding particles in the fire-retarding cavity, and the baffle may be a rigid supporting structure, so that the structural stability of the barrier portion is better, the anti-explosion influence capability is enhanced, and the barrier is not easy to deform. Wherein the mesh size of the wire mesh 14 depends on the particle size of the fire-retarding particles in the fire-retarding chamber 5.
It will be appreciated that when the screen 14 is provided, the openings in the baffle may be of any size, for example, the baffle having a circumferential frame and at least one inner frame nested within the circumferential frame, the baffle further comprising radial links connecting the inner frame and the circumferential frame, a plurality of said radial links being provided at intervals along the circumference of the baffle, the radial links extending radially from the centre to the edge of the baffle. Of course, it will be appreciated that the baffles may be provided in any other suitable form, for example, in a grid-like form, and that when the gaps between the grids on the grid-like baffles are sufficiently small to be smaller than the particle size of the fire-retarding particles, the wire mesh may be omitted and only the baffles may be provided separately.
Alternatively, in this embodiment, the whole housing of the particle flame arrestor of the wire-replaceable flame retardant particles is integral, i.e. the first housing 1, the second housing 2 and the flame retardant section housing 19 are integrally formed, in which case the barrier may comprise only the separating wire mesh 14.
In the particle flame arrester with the wire-replaceable flame retardant particles, when a fire or explosion occurs on one side of the particle flame arrester with the wire-replaceable flame retardant particles, flame passes through the first shell 1 or the second shell 2 firstly, and particularly when the expansion section 8 exists, the cross section area of the expansion section 8 gradually increases towards the central direction of the flame retardant section 4, the flow area of the flame gradually increases, and the advancing speed and the pressure of the flame gradually decrease; when flame flows through the fire-retarding section 4, the flame exchanges heat with fire-retarding particles in the fire-retarding cavity 5, the temperature is reduced, and free radicals generated by the combustion reaction are quenched on the surfaces of the particles, so that the concentration of the free radicals in the combustion reaction is reduced, and when the temperature and the concentration of the free radicals are low enough to not maintain the combustion reaction, the combustion is terminated, thereby effectively preventing the flame or explosion from spreading to the other side and causing larger accidents.
For the selection of the firestop particles, the shape of the firestop particles, in addition to the materials described above, includes, but is not limited to, spherical, ellipsoidal, etc., so that fine flow channels can be formed between the firestop particles so that gas can flow along these flow channels. Generally, the flow-through channels that can be formed between the fire-blocking particles are required to meet the requirements of explosion-proof class, for example, when the explosion-proof class is class IIA, the flow-through channels are required to be not more than 0.85; for example, when the explosion protection rating is class IIB3, the flow-through channel is required to be no more than 0.6; for example, when the explosion protection rating is class IIB3, the flow channel is required to be not more than 0.4. Further specifically, for example, the fire-retarding particles may be spherical metal particles with a particle diameter of 2mm, so that a 0.73mm circulation channel is formed between the spherical metal particles filled in the fire cavity 5, so as to meet the working condition of explosion-proof grade IIA. Under normal working conditions, the gas flows in along the outer side opening of one side shell, then flows into the fire-retarding section 4, then flows along the flow channel formed among the fire-retarding particles, and then flows out from the outer side opening of the other side shell after flowing through the other side shell.
The invention is further described by the following examples, which are only for better illustration of the technical solution of the invention, but are not intended to limit the invention.
Example 1
A particulate flame arrestor of wire-replaceable flame retardant particles comprising a first shell, a second shell, and a flame retardant section between the first shell and the second shell, the flame retardant section having a flame retardant section shell that is hollow and has two flame retardant section openings that are respectively directed toward the first shell and the second shell, the flame retardant section further comprising two barrier sections that are respectively disposed at the two flame retardant section openings to define a flame retardant cavity therebetween, the barrier sections having a plurality of openings formed therein, the flame retardant cavity being filled with flame retardant particles; the fire-retarding part further comprises a fire-retarding particle replacement structure, the fire-retarding particle replacement structure comprises a fire-retarding particle discharge outlet and a fire-retarding particle supply opening, the fire-retarding particle discharge outlet is formed at the bottom of the fire-retarding section shell, the fire-retarding particle supply opening is formed at the top of the fire-retarding section shell, and the fire-retarding part further comprises a discharge valve for controlling the fire-retarding particle discharge outlet to be opened and closed and a supply valve for controlling the fire-retarding particle supply opening to be opened and closed; the fire-retarding grain replacement structure includes a discharge passage extending from the fire-retarding grain discharge port, the discharge valve being mounted on the discharge passage; the fire-retarding grain replacement structure further comprises a replenishing channel extending from the fire-retarding grain replenishing port, and the replenishing valve is arranged on the replenishing channel.
Example 2
A particulate flame arrestor of wire-replaceable flame retardant particles comprising a first shell, a second shell, and a flame retardant section between the first shell and the second shell, the flame retardant section having a flame retardant section shell that is hollow and has two flame retardant section openings that are respectively directed toward the first shell and the second shell, the flame retardant section further comprising two barrier sections that are respectively disposed at the two flame retardant section openings to define a flame retardant cavity therebetween, the barrier sections having a plurality of openings formed therein, the flame retardant cavity being filled with flame retardant particles; the fire-retarding part further comprises a fire-retarding particle replacement structure, the fire-retarding particle replacement structure comprises a fire-retarding particle discharge outlet and a fire-retarding particle supply opening, the fire-retarding particle discharge outlet is formed at the bottom of the fire-retarding section shell, the fire-retarding particle supply opening is formed at the top of the fire-retarding section shell, and the fire-retarding part further comprises a discharge valve for controlling the fire-retarding particle discharge outlet to be opened and closed and a supply valve for controlling the fire-retarding particle supply opening to be opened and closed; the fire-retarding grain replacement structure includes a discharge passage extending from the fire-retarding grain discharge port, the discharge valve being mounted on the discharge passage; the fire-retarding grain replacement structure further comprises a supply channel extending from the fire-retarding grain supply port, and the supply valve is arranged on the supply channel; the particle flame arrester of the wire-replaceable flame arrester particle further comprises a pressure difference detection part for detecting a pressure difference between gas entering the flame arrester section and discharged from the flame arrester section, the pressure difference detection part comprises a first pressure detector and a second pressure detector, the first pressure detector is mounted on the first shell and the detection probe extends into the first shell inner cavity, and the second pressure detector is mounted on the second shell and the detection probe extends into the second shell inner cavity.
Example 3
A particulate flame arrestor of wire-replaceable flame retardant particles comprising a first shell, a second shell, and a flame retardant section between the first shell and the second shell, the flame retardant section having a flame retardant section shell that is hollow and has two flame retardant section openings that are respectively directed toward the first shell and the second shell, the flame retardant section further comprising two barrier sections that are respectively disposed at the two flame retardant section openings to define a flame retardant cavity therebetween, the barrier sections having a plurality of openings formed therein, the flame retardant cavity being filled with flame retardant particles; the fire-retarding part further comprises a fire-retarding particle replacement structure, the fire-retarding particle replacement structure comprises a fire-retarding particle discharge outlet and a fire-retarding particle supply opening, the fire-retarding particle discharge outlet is formed at the bottom of the fire-retarding section shell, the fire-retarding particle supply opening is formed at the top of the fire-retarding section shell, and the fire-retarding part further comprises a discharge valve for controlling the fire-retarding particle discharge outlet to be opened and closed and a supply valve for controlling the fire-retarding particle supply opening to be opened and closed; the fire-retarding grain replacement structure includes a discharge passage extending from the fire-retarding grain discharge port, the discharge valve being mounted on the discharge passage; the fire-retarding grain replacement structure further comprises a supply channel extending from the fire-retarding grain supply port, and the supply valve is arranged on the supply channel; the fire-retarding cavity comprises three subareas along the direction from one fire-retarding section opening to the other fire-retarding section opening, the fire-retarding particle replacing structures are arranged on each subarea, the fire-retarding particles filled in the subareas positioned at two sides are alumina ceramic particles with the particle size of 5mm, and the fire-retarding particles filled in the subareas positioned at the center are stainless steel balls with the particle size of 2 mm; the barrier comprises a rigid barrier and a wire mesh located inside the barrier.
Example 4
A particulate flame arrestor of wire-replaceable flame retardant particles comprising a first shell, a second shell, and a flame retardant section between the first shell and the second shell, the flame retardant section having a flame retardant section shell that is hollow and has two flame retardant section openings that are respectively directed toward the first shell and the second shell, the flame retardant section further comprising two barrier sections that are respectively disposed at the two flame retardant section openings to define a flame retardant cavity therebetween, the barrier sections having a plurality of openings formed therein, the flame retardant cavity being filled with flame retardant particles; the fire-retarding part further comprises a fire-retarding particle replacement structure, the fire-retarding particle replacement structure comprises a fire-retarding particle discharge outlet and a fire-retarding particle supply opening, the fire-retarding particle discharge outlet is formed at the bottom of the fire-retarding section shell, the fire-retarding particle supply opening is formed at the top of the fire-retarding section shell, and the fire-retarding part further comprises a discharge valve for controlling the fire-retarding particle discharge outlet to be opened and closed and a supply valve for controlling the fire-retarding particle supply opening to be opened and closed; the fire-retarding grain replacement structure includes a discharge passage extending from the fire-retarding grain discharge port, the discharge valve being mounted on the discharge passage; the fire-retarding grain replacement structure further comprises a supply channel extending from the fire-retarding grain supply port, and the supply valve is arranged on the supply channel; along from one the fire-blocking section opening to another the direction of fire-blocking section opening, the fire-blocking chamber includes three subregion, and all be provided with on each the subregion fire-blocking particles changes the structure, is located the both sides fire-blocking particles that pack in the subregion is the natural zeolite that the particle diameter is 4mm, is located the center fire-blocking particles that pack in the subregion is the molecular sieve material that the particle diameter is 2.2mm, can linearly change the whole casing of the granule fire arrester of fire-blocking particles, and first casing, second casing and fire-blocking section casing are integrated into one piece, the blocking part is the separation silk screen.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. The technical solution of the invention can be subjected to a plurality of simple variants within the scope of the technical idea of the invention. Including the various specific features being combined in any suitable manner. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (16)
1. A particulate flame arrester of wire-replaceable flame-retardant particles, comprising a first shell (1), a second shell (2) and a flame-retardant section (4) located between the first shell (1) and the second shell (2), characterized in that the flame-retardant section (4) has a flame-retardant section shell (19), the flame-retardant section shell (19) is hollow and has two flame-retardant section openings respectively facing the first shell (1) and the second shell (2), the flame-retardant section (4) further comprises two blocking parts respectively arranged at the two flame-retardant section openings to define a flame-retardant cavity (5) between the two blocking parts, a plurality of openings are formed on the blocking parts, and the flame-retardant cavity (5) is filled with flame-retardant particles; the fire-retarding section (4) further comprises a fire-retarding particle replacement structure comprising a fire-retarding particle discharge port (24) and a fire-retarding particle supply port (25), the fire-retarding particle discharge port (24) is formed at the bottom of the fire-retarding section housing (19), the fire-retarding particle supply port (25) is formed at the top of the fire-retarding section housing (19), and the fire-retarding section (4) further comprises a discharge valve (27) for controlling the opening and closing of the fire-retarding particle discharge port (24) and a supply valve (29) for controlling the opening and closing of the fire-retarding particle supply port (25), wherein,
The firestop cavity (5) comprises at least two sections in the direction from one opening of the firestop section to the other opening of the firestop section, the grain size of the firestop particles filled in the first section being larger than the grain size of the firestop particles filled in the second section, or,
-said firestop cavity (5) comprises at least three sections in a direction from one of said firestop section openings to the other of said firestop section openings; the particle size of the fire-retarding particles filled in the partition located at the outer side is larger than the particle size of the fire-retarding particles filled in the partition located at the inner side in the direction from the opening of the fire-retarding section to the center.
2. A particulate flame arrestor with wire-replaceable flame retardant particles as defined in claim 1, wherein the flame retardant particle replacement structure includes a discharge channel (26) extending from the flame retardant particle discharge port (24), the discharge valve (27) being mounted on the discharge channel (26); the fire-retarding grain replacement structure further comprises a replenishing channel (28) extending from the fire-retarding grain replenishing port (25), and the replenishing valve (29) is arranged on the replenishing channel (28).
3. A particulate flame arrestor with wire-exchangeable flame arrestor particles according to claim 2, characterized in that the discharge channel (26) and the replenishment channel (28) are each straight cylinders extending in a vertical direction.
4. The particulate flame arrestor of line replaceable flame retardant particles of claim 2, further comprising a flame retardant section connector (30) disposed at an outer end of the discharge passage (26) and/or an outer end of the replenishment passage (28); the particle flame arrester capable of replacing flame retardant particles in a linear manner further comprises a charging basket (31), and the charging basket (31) is provided with a charging basket connector (32) which can be connected with the flame retardant section connector (30) in a matched manner.
5. A particulate flame arrestor with wire-replaceable flame retardant particles according to claim 4, characterized in that a first barrel opening (35) is formed on the barrel (31) and a barrel channel (33) extends from the first barrel opening (35), a barrel valve (34) is provided on the barrel channel (33) for controlling the opening and closing of the first barrel opening (35); the charging basket connector (32) is arranged at the outer end of the charging basket channel (33).
6. The particulate flame arrestor of line replaceable flame retardant particles of claim 1, further comprising a pressure differential detection portion for detecting a pressure differential between gas entering the flame retardant section (4) and exiting the flame retardant section (4).
7. The particulate flame arrestor of line replaceable flame arrestor particles as defined in claim 6, characterized in that the differential pressure detection section includes a first pressure detector (36) and a second pressure detector (37), the first pressure detector (36) being mounted to the first housing (1) and a detection probe extending into an interior cavity of the first housing (1), the second pressure detector (37) being mounted to the second housing (2) and a detection probe extending into an interior cavity of the second housing (2).
8. A particulate flame arrestor with wire-replaceable flame retardant particles as defined in claim 1, wherein the flame retardant particle replacement structure is disposed on each of the sections.
9. A particulate flame arrestor with wire-exchangeable flame retardant particles according to claim 1, characterized in that the flame retardant sections (4) extend in a straight line, the interface between each of the sections being perpendicular to the direction of extension of the flame retardant sections (4), a wire mesh (14) extending along the interface being provided at each of the interfaces.
10. The particulate flame arrestor of line replaceable flame arrestor particles of claim 1, wherein the flame arrestor particles are one or a combination of more of the following: metals, metal organic framework materials, molecular sieve materials, natural zeolites and ceramics.
11. A particulate flame arrestor with wire-exchangeable flame retardant particles according to claim 1, characterized in that the first and second shells (1, 2) are formed with an inner side opening at a side facing each other, respectively, the first and second shells (1, 2) each having an expansion section (8) at the inner side opening side, the expansion section (8) being formed with a gradually increasing cross-sectional area in a direction towards the inner side opening.
12. A particulate flame arrestor with wire-exchangeable flame retardant particles according to claim 11, characterized in that the expansion section (8) is formed as a frustoconical cylinder with open ends, the first housing (1) and the second housing (2) each further comprising a cylindrical section (9) connected to the expansion section (8), the cylindrical section (9) extending from a side edge of the expansion section (8) facing away from the inner opening in the direction of the axis of rotation of the frustoconical cylinder towards facing away from the inner opening.
13. A particulate flame arrestor of line replaceable flame retardant particles as claimed in claim 1, wherein the flame retardant section housing (19) has an expansion section (8) at both ends, the expansion section (8) being formed with a gradually increasing cross-sectional area in a direction away from the barrier.
14. A particulate flame arrestor with wire-exchangeable flame retardant particles according to claim 13, characterized in that the expansion section (8) is formed as a frustoconical cylinder with open ends, the flame-retardant section housing (19) also having a cylindrical section between two expansion sections (8).
15. A particulate flame arrestor with wire-exchangeable flame retardant particles according to claim 1, characterized in that the barrier comprises a rigid barrier and a wire mesh (14) inside the barrier.
16. A particulate flame arrestor with wire-exchangeable flame retardant particles according to claim 1, characterized in that the first shell (1) and the second shell (2) have a symmetrical structure to each other; the first housing (1) and the second housing (2) are each formed with a mounting flange (15) on the side facing away from each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123543.9A CN115845296B (en) | 2021-09-24 | 2021-09-24 | Particle flame arrester capable of replacing flame-retarding particles in line |
| PCT/CN2022/093804 WO2023045362A1 (en) | 2021-09-24 | 2022-05-19 | Flame arrester capable of automatically eliminating defects of fire arresting portion |
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| CN202111123543.9A CN115845296B (en) | 2021-09-24 | 2021-09-24 | Particle flame arrester capable of replacing flame-retarding particles in line |
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| CN115845296B true CN115845296B (en) | 2024-01-12 |
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