CN106290018A - Spark arrester explosion arrestment method for testing performance - Google Patents
Spark arrester explosion arrestment method for testing performance Download PDFInfo
- Publication number
- CN106290018A CN106290018A CN201610892618.2A CN201610892618A CN106290018A CN 106290018 A CN106290018 A CN 106290018A CN 201610892618 A CN201610892618 A CN 201610892618A CN 106290018 A CN106290018 A CN 106290018A
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- spark arrester
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- explosion arrestment
- speed camera
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/313—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
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Abstract
The invention discloses a kind of spark arrester explosion arrestment method for testing performance, comprise the following steps: at the outer surface of spark arrester, be axially uniformly arranged four pressure transducers；Spark arrester is accessed between front and rear tube in the way of Flange joint, forms airtight tubing；In described tubing, fill combustible gas mixture, determine the sparking mode of ignitor, the combustible gas mixture in tubing is lighted a fire；High-speed camera is managed and the image of form at pressure release tank connecting position after gathering；Each pressure transducer gathers the pressure information within spark arrester, and is inputted to data handling system by signal condition instrument；The pressure information that the image collected according to high-speed camera and data handling system obtain, carries out grading performance, and judges the explosion arrestment performance of spark arrester spark arrester.The present invention propagates image and the pressure distribution of pressure transducer acquisition by the flame that high-speed camera obtains, it is possible to detect spark arrester performance qualitative, quantitative.
Description
Technical field
The present invention relates to detection and the assessment technique field of spark arrester explosion arrestment performance, particularly a kind of spark arrester explosion arrestment performance
Detection method.
Background technology
Spark arrester can be used to stop flammable explosion hazard gases and liquid vapors flame to propagate, in recent years in petrochemical industry, natural
The industries such as gas are widely used.Along with the development of modern society, safety in production is increasingly paid attention to, improve carry, accumulating link
Essential Safety degree, it is ensured that spark arrester fire-retardant explosion arrestment performance, improving the reliability during using has weight to safe production
Want meaning.Therefore the detection of spark arrester performance is particularly critical with evaluation.
Industrially developed country has set up the detection technique of the most perfect spark arrester, the most complete theoretical system and technology
Specification.Domestic relation technological researching is started late, although establishes associated specifications, but still has necessarily with technology leading in the world
Gap.Professional pattern test mechanism and the test system of current domestic spark arrester performance test are also had vacant position, and relevant performance is surveyed
Method for testing also imperfection.At present major part method of testing by flame by whether there being flare up fire to judge this back-fire relief after spark arrester
The back-fire relief datonation-inhibition function of device.Flare up fire comes from light sensor or flame sensor, it is easy to erroneous judgement or response occur
Situation not in time.And, only by flare up fire with or without judging, lack quantitative data, the fire-retardant explosion arrestment to spark arrester
Can quality can not be distinguish between.And major part detection device or method all have ignored inside spark arrester combustion flame with quick-fried
The decay of fried shock wave and inhibition, the detection to spark arrester explosion arrestment performance lacks persuasion.
Summary of the invention
It is an object of the invention to provide the detection method of a kind of spark arrester explosion arrestment performance, obtained by high-speed camera
Flame propagates image and the pressure distribution of pressure transducer acquisition, detects spark arrester performance qualitative, quantitative.
The technical solution realizing the object of the invention is: a kind of spark arrester explosion arrestment method for testing performance, including following step
Rapid:
Step 1, at the outer surface of spark arrester, be axially uniformly arranged four pressure transducers；
Step 2, spark arrester is accessed between front and rear tube in the way of Flange joint, form airtight tubing；
Step 3, in described tubing fill combustible gas mixture, determine the sparking mode of ignitor, to pipe
The intrasystem combustible gas mixture in road is lighted a fire；
Step 4, high-speed camera are managed and the image of form at pressure release tank connecting position after gathering；Each pressure transducer is adopted
Collection pressure information within spark arrester, and inputted to data handling system by signal condition instrument；
The pressure information that step 5, the image collected according to high-speed camera and data handling system obtain, to back-fire relief
Device carries out grading performance, and judges the explosion arrestment performance of spark arrester.
Further, the test surfaces of pressure transducer described in step 1 is arranged with the inner surface copline of spark arrester.
Further, described pressure transducer described in step 1 is the 113B type sensor of PCB company of the U.S., and sensitivity is
5mv/psi, response frequency is more than 500kHz.
Further, the image collected according to high-speed camera described in step 5 and data handling system obtain
Pressure information, carries out grading performance to spark arrester, and judges the explosion arrestment performance of spark arrester, grading performance table specific as follows:
In table, △ P is for averagely firing supercharging, and Δ P=(P1 ten P2 ten ... ten Pi)/i；P1, P2 ..., Pi are spark arrester
The force value that each pressure transducer of surface is detected；I is the number of pressure transducer；PA、PBWith PCFor different fuel gas with
Threshold value under ignition condition；A represents fire-retardant, and B represents that explosion arrestment fires, and C represents that explosion arrestment bangs；0 represents without hindrance effect, and 1 represents obstruction
Effect is general, and 2 represent that obstruction effect is preferable, and 3 represent and can intercept completely.
Compared with prior art, its remarkable advantage is the present invention: (1) arranges pressure transducer on spark arrester, can obtain
Obtain spark arrester internal pressure attenuation change, its explosion arrestment performance has been had and has detected intuitively, testing result more cogency simultaneously；
(2) pressure distribution situation in the picture shot according to high-speed camera and spark arrester, qualitative, quantitative ground, explosion arrestment fire-retardant to spark arrester
Fire and detect with resistance detonation property.
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is spark arrester explosion arrestment device for detecting performance figure, and wherein (a) is tradition spark arrester explosion arrestment device for detecting performance structure
Figure, (b) is spark arrester explosion arrestment device for detecting performance structure chart of the present invention.
Fig. 2 is pressure transducer distribution schematic diagram in spark arrester explosion arrestment device for detecting performance of the present invention.
Detailed description of the invention
The principle of spark arrester explosion arrestment method for testing performance of the present invention is: reached by combustible gas mixture in making detecting system
To burning, detonation or detonation state, detect that spark arrester is fire-retardant with this, explosion arrestment combustion or resistance detonation property.Different and traditional detection fills
Putting, whether conventional detection devices exists flame in judging pipeline by flame sensor or pressure transducer, simply qualitatively judges,
Apparatus of the present invention propagate image and the pressure distribution of pressure transducer acquisition by the flame that high-speed camera obtains, qualitative
Quantitatively spark arrester performance is detected.
In conjunction with Fig. 1 (a)～(b), spark arrester explosion arrestment device for detecting performance of the present invention, including ignitor 1, front pipe 2, form
3, spark arrester 4, rear pipe 5, pressure vacuum gauge 6, pressure release tank 7, support 8, vacuum pump 9, pressure transducer 10, signal condition instrument 11,
Data handling system 12；Wherein, ignitor 1 is arranged in the middle of flange plate threadably, and flange plate is with front pipe 2 even
Connect；Described front pipe 2, spark arrester 4, rear pipe 5 and pressure release tank 7 sequentially connect with form of flanges；The quantity of form 3 is 3, offers respectively
In the position that the position that the position that front pipe 2 connects with ignitor 1, front pipe 2 connect with spark arrester 4, rear pipe 5 connect with pressure release tank 7
Put；Described vacuum pump 9 is connected with rear pipe 5 by high pressure leather hose；As in figure 2 it is shown, at the outer surface of spark arrester 4, the most all
Even four pressure transducers 10 are set；Each pressure transducer 10 is connected with signal condition instrument 11 by coaxial cable respectively, letter
Number regulating instrument 11 is connected with data handling system 12 by data wire；Package unit is placed on support 8.
Further, spark arrester explosion arrestment device for detecting performance of the present invention, also include high-speed camera 13, this high-speed camera
13 gather after the image of form 3 at pipe 5 and pressure release tank 7 connecting position, be used for judging in this form 3 with or without flame.
Preferably, the sparking mode of described ignitor 1 be spark ignition, hot-wire ignition, 8# industrial detonator igniting,
Ignition charge igniting or 8# industrial detonator and hexogen powder column are lighted a fire, and with difference igniting energy point fire, make in pipeline at fuel gas
State is fired in difference, and according to the pressure transducer arranged, it is thus achieved that the pressure distribution under the conditions of corresponding igniting, and according to pressure
Distributed data, explosion arrestment combustion fire-retardant to spark arrester detects with resistance detonation property.
Preferably, described pressure transducer 10 is the 113B type sensor of PCB company of the U.S., and sensitivity is 5mv/psi, rings
Frequency is answered to be more than 500kHz.
Spark arrester explosion arrestment method for testing performance of the present invention, comprises the following steps:
Step 1, at the outer surface of spark arrester, be axially uniformly arranged four pressure transducers；
Step 2, spark arrester is accessed between front and rear tube in the way of Flange joint, form airtight tubing；
Step 3, in described tubing fill combustible gas mixture, determine the sparking mode of ignitor, to pipe
The intrasystem combustible gas mixture in road is lighted a fire；
Step 4, high-speed camera are managed and the image of form at pressure release tank connecting position after gathering；Each pressure transducer is adopted
Collection pressure information within spark arrester, and inputted to data handling system by signal condition instrument；
The pressure information that step 5, the image collected according to high-speed camera and data handling system obtain, to back-fire relief
Device carries out grading performance, and judges the explosion arrestment performance of spark arrester.
Further, the test surfaces of pressure transducer described in step 1 is arranged with the inner surface copline of spark arrester.
Further, described pressure transducer described in step 1 is the 113B type sensor of PCB company of the U.S., and sensitivity is
5mv/psi, response frequency is more than 500kHz.
Further, the image collected according to high-speed camera described in step 5 and data handling system obtain
Pressure information, carries out grading performance to spark arrester, and judges the explosion arrestment performance of spark arrester, grading performance table specific as follows:
Table 1 spark arrester grading performance
In table, △ P is for averagely firing supercharging, and Δ P=(P1 ten P2 ten ... ten Pi)/i；P1, P2 ..., Pi are spark arrester
The force value that each pressure transducer of surface is detected；I is the number of pressure transducer；PA、PBWith PCFor different fuel gas with
Threshold value under ignition condition；A represents fire-retardant, and B represents that explosion arrestment fires, and C represents that explosion arrestment bangs；0 represents without hindrance effect, and 1 represents obstruction
Effect is general, and 2 represent that obstruction effect is preferable, and 3 represent and can intercept completely.
Embodiment 1
Certain spark arrester 4 is carried out explosion arrestment performance detection, obtains manifold pressure distributed data by pressure transducer 10.Logical
Cross in form 5 observes pipeline and whether have flame, obtain corresponding flame by high-speed camera 13 and propagate image.Concrete detecting step
As follows:
Step 1, spark arrester 4 is reequiped, at its surface mount sensor 10, sensor test face and table in spark arrester
Face flushes, and keeps seal；
Step 2, by spark arrester 4 in the way of Flange joint between access conduit 2 and pipeline 5, tubing is airtight；
Step 3, in tubing fill combustible gas mixture, select II B fuel gas ethylene here, with volume ratio
Be 6.5% ± 0.1 ethylene-air mixture be detected gas；
Step 4, at pipeline 2 end, select suitable sparking mode to light a fire, selected element pyrophoric ignition here, in making pipeline
Combustible gas mixture reaches detonation；
Step 5, the high-speed camera photo arrived according to test system acquisition and pressure distribution situation, divide according to spark arrester performance
Level, calculates Δ P, it is judged that the explosion arrestment performance quality degree of spark arrester 4.
After detection discovery, pipe is without flame, and each measuring point force value is respectively as follows: 100.5kPa, 88.1kPa, 62.2kPa,
50.3kPa.Then Δ P=75.3kPa, wherein PB=160kPa, then spark arrester explosion arrestment performance rate is B2, has the combustion of preferable explosion arrestment
Effect.
Claims (4)
1. a spark arrester explosion arrestment method for testing performance, it is characterised in that comprise the following steps:
Step 1, outer surface in spark arrester (4), be axially uniformly arranged four pressure transducers (10)；
Step 2, spark arrester (4) is accessed between front pipe (2) and rear pipe (5) in the way of Flange joint, form airtight pipeline
System；
Step 3, in described tubing fill combustible gas mixture, determine the sparking mode of ignitor (1), to pipeline
Intrasystem combustible gas mixture is lighted a fire；
Step 4, high-speed camera (13) manage the image of form (3) at (5) and pressure release tank (7) connecting position after gathering；Each pressure
Force transducer (10) gathers the pressure information that spark arrester (4) is internal, and processes system by signal condition instrument (11) input to data
System (12)；
The pressure information that step 5, the image collected according to high-speed camera (13) and data handling system (12) obtain, right
Spark arrester (4) carries out grading performance, and judges the explosion arrestment performance of spark arrester (4).
Spark arrester explosion arrestment method for testing performance the most according to claim 1, it is characterised in that pressure sensing described in step 1
The test surfaces of device (10) is arranged with the inner surface copline of spark arrester (4).
Spark arrester explosion arrestment method for testing performance the most according to claim 1, it is characterised in that described pressure described in step 1
Sensor (10) is the 113B type sensor of PCB company of the U.S., and sensitivity is 5mv/psi, and response frequency is more than 500kHz.
Spark arrester explosion arrestment method for testing performance the most according to claim 1, it is characterised in that according to height described in step 5
The pressure information that speed video camera (13) image that collects and data handling system (12) obtain, to spark arrester (4) Progressive symmetric erythrokeratodermia
Energy classification, and judge the explosion arrestment performance of spark arrester (4), grading performance table specific as follows:
In table, △ P is for averagely firing supercharging, and Δ P=(P1 ten P2 ten ... ten Pi)/i；P1, P2 ..., Pi are spark arrester (4) table
The force value that each pressure transducer of face (10) is detected；I is the number of pressure transducer (10)；PA、PBWith PCFlammable for difference
Gas and the threshold value under ignition condition；A represents fire-retardant, and B represents that explosion arrestment fires, and C represents that explosion arrestment bangs；0 represents without hindrance effect, 1 table
Showing that obstruction effect is general, 2 represent that obstruction effect is preferable, and 3 represent and can intercept completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892618.2A CN106290018A (en) | 2016-10-12 | 2016-10-12 | Spark arrester explosion arrestment method for testing performance |
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| CN201610892618.2A CN106290018A (en) | 2016-10-12 | 2016-10-12 | Spark arrester explosion arrestment method for testing performance |
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| CN201610892618.2A Pending CN106290018A (en) | 2016-10-12 | 2016-10-12 | Spark arrester explosion arrestment method for testing performance |
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Cited By (5)
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| CN106706452A (en) * | 2017-03-07 | 2017-05-24 | 中国石油化工股份有限公司 | Controllable anti-explosion performance testing device for fire-retardant core |
| CN112577720A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Deflagration testing device and testing method for pipe end flame arrester |
| CN112629834A (en) * | 2019-10-08 | 2021-04-09 | 中国石油化工股份有限公司 | Pressure drop and flow testing system and method for testing pipeline flame arrester |
| CN114112451A (en) * | 2020-09-01 | 2022-03-01 | 中国石油化工股份有限公司 | Flame arrester testing method and system |
| CN114577464A (en) * | 2020-12-02 | 2022-06-03 | 中国石油化工股份有限公司 | Breathing valve burning resistance testing device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106706452A (en) * | 2017-03-07 | 2017-05-24 | 中国石油化工股份有限公司 | Controllable anti-explosion performance testing device for fire-retardant core |
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| CN112577720A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Deflagration testing device and testing method for pipe end flame arrester |
| CN112629834A (en) * | 2019-10-08 | 2021-04-09 | 中国石油化工股份有限公司 | Pressure drop and flow testing system and method for testing pipeline flame arrester |
| CN114112451A (en) * | 2020-09-01 | 2022-03-01 | 中国石油化工股份有限公司 | Flame arrester testing method and system |
| CN114577464A (en) * | 2020-12-02 | 2022-06-03 | 中国石油化工股份有限公司 | Breathing valve burning resistance testing device and method |
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