CN106441967A - Explosion resistance detecting device and method for flame arrester - Google Patents
Explosion resistance detecting device and method for flame arrester Download PDFInfo
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- CN106441967A CN106441967A CN201610892617.8A CN201610892617A CN106441967A CN 106441967 A CN106441967 A CN 106441967A CN 201610892617 A CN201610892617 A CN 201610892617A CN 106441967 A CN106441967 A CN 106441967A
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- pressure
- spark arrester
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- explosion arrestment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
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Abstract
The invention discloses an explosion resistance detecting device and method for a flame arrester. The device comprises an igniting electrode, a front pipe, a window, the flame arrester, a rear pipe, vacuum compression gauges, a pressure release pot, a support, a vacuum pump, pressure sensors, a signal conditioning instrument and a data processing system. The method comprises that the flame arrester is connected between the front pipe and the rear pipe to form a pipeline system, and the pipeline system is enclosed; the pipeline system can be filled with an inflammable gas mixture, and igniting is carried out; a high-speed camera collects an image of the window in the position where the back pipe is connected with the pressure release pot; the pressure sensors collect pressure information of the front and back pipes, and input the information to the data processing system via a signal conditioning instrument; and performance of the flame arrester is graded according to the image collected by the high-speed camera and the pressure information obtained by the data processing system, and the explosion resistance of the flame arrester is determined. According to the invention, the performance of the flame arrester is detected qualitatively and quantitatively via the flame spreading image obtained by the high-speed camera and pressure distribution obtained by the pressure sensor.
Description
Technical field
The present invention relates to the detection technique field of spark arrester explosion arrestment performance, particularly a kind of spark arrester explosion arrestment performance detection dress
Put and method.
Background technology
Spark arrester can be used to prevent flammable explosion hazard gases and liquid vaporses flame propagation, in recent years in petrochemical industry, natural
The industries such as gas are widely used.With the development of modern society, safety in production is increasingly paid attention to, improve convey, accumulating link
Essential Safety degree, it is ensured that spark arrester explosion arrestment performance, the reliability during raising use has important meaning to safe production
Justice, therefore spark arrester performance detection is particularly critical with evaluation.
Industrially developed country has set up the detection technique of more perfect spark arrester, with respect to 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.The professional pattern test mechanism of country's spark arrester performance test and test system are also had vacant position at present, and related performance is surveyed
Method for testing also imperfection.Major part method of testing judges the back-fire relief by whether flame has flare up fire after spark arrester at present
The back-fire relief explosion arrestment performance of device.Flare up fire comes from light sensor or flame sensor, it is easy to erroneous judgement occurs or responds
Situation not in time.And, only have or not by flare up fire to judge, lack quantitative data, excellent to the explosion arrestment performance of spark arrester
Bad can not be distinguish between.
Domestic standard is not made a distinction to the detection means of fire-retardant and explosion arrestment in spark arrester performance detection, domestic common
Detection means arranges disturbance using spark plug as incendiary source by increasing the length of spark arrester preceding pipeline or igniting side in flame
Device, increases flame propagation velocity, makes up to detonation or detonation, so as to detect spark arrester to combustible gas deflagrating and detonation
Barriering effect.But being to increase device preceding pipeline length can cause package unit redundancy heavy, cost of manufacture height, take up room
Many, and side setting disturbance device is ignited in flame, body flow field can be disturbed to be distributed, be not inconsistent with actual pipe condition.
Content of the invention
It is an object of the invention to provide a kind of spark arrester explosion arrestment device for detecting performance and method, are obtained by high-speed camera
The pressure distribution that the flame propagation image for obtaining and pressure transducer are obtained, detects to spark arrester performance qualitative, quantitative.
The technical solution for realizing the object of the invention is：A kind of spark arrester explosion arrestment device for detecting performance, including ignition power
Pole, front pipe, form, spark arrester, rear pipe, pressure vacuum gauge, pressure release tank, support, vacuum pump, pressure transducer, signal condition instrument,
Data handling system；Wherein, ignitor is arranged in the middle of flange plate threadably, and flange plate is connected with front pipe；
The front pipe, spark arrester, rear pipe and pressure release tank are sequentially connected with form of flanges；The quantity of form be 3, be opened in respectively before pipe with
Position that position that ignitor connects, front pipe are connected with spark arrester, manage the position for connecting with pressure release tank afterwards；The vacuum pump leads to
Cross high pressure leather hose to be connected with rear pipe；The outer wall of the front and rear tube is respectively provided with one or more pressure transducers；Each pressure
Force transducer is connected with signal condition instrument by coaxial cable respectively, and signal condition instrument is by data wire with data handling system even
Connect；Package unit is placed on support.
Further, described spark arrester explosion arrestment device for detecting performance, also includes high-speed camera, and the high-speed camera is adopted
The image with form at pressure release tank connecting position is managed after collection, for judging to have or not flame in the form.
Preferably, the pressure transducer is uniformly arranged on the outer wall of front and rear tube at equal intervals.
Further, the sparking mode of described ignitor is spark ignition, hot-wire ignition, 8# industrial detonator point
Fire, ignition charge igniting or 8# industrial detonator and the igniting of hexogen powder column.
Further, the pressure transducer is the 113B type sensor of PCB company of the U.S., and sensitivity is 5mv/psi, to ring
Frequency is answered more than 500kHz.
A kind of spark arrester explosion arrestment method for testing performance, comprises the following steps：
Step 1, spark arrester is accessed between front and rear tube in the way of flange connection formation tubing, and pipeline system
System is closed；
Step 2, combustible gas mixture being filled in the tubing, determines the sparking mode of ignitor, to pipe
Combustible gas mixture in road system is lighted a fire；
The image with form at pressure release tank connecting position is managed after step 3, high-speed camera collection；Each pressure transducer is adopted
The pressure information of collection front and rear tube, and be input into data handling system by signal condition instrument；
The pressure information that step 4, the image for being collected according to high-speed camera and data handling system are obtained, to back-fire relief
Device carries out grading performance, and judges the explosion arrestment performance of spark arrester.
Further, the pressure that the image for being collected according to high-speed camera described in step 4 and data handling system are obtained
Force information, carries out grading performance to spark arrester, and judges the explosion arrestment performance of spark arrester, grading performance table specific as follows：
Wherein, PL1For the average pressure of each pressure transducer of front pipe, PL2Average pressure for each pressure transducer of rear pipe；A
Represent fire-retardant, B represents that explosion arrestment fires, C represents that explosion arrestment bangs；0 represents without hindrance effect, and 1 represents that obstruction effect is general, and 2 expressions hinder
Effect is preferable, and 3 represent and can intercept completely.
Compared with prior art, its remarkable advantage is the present invention：(1) using different sparking mode igniting, realize in pipeline
Fuel gas fires state in burning, detonation and detonation etc. are different, so as to carry out that spark arrester is fire-retardant, explosion arrestment combustion and explosion arrestment Hong property
The detection of energy；(2) picture for being shot according to high-speed camera and manifold pressure distribution situation, qualitative, quantitative ground is hindered to spark arrester
Combustion, explosion arrestment combustion and resistance detonation property are detected.
Description of the drawings
Fig. 1 is spark arrester explosion arrestment device for detecting performance figure, and wherein (a) is traditional 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 the structure chart of ignitor in spark arrester explosion arrestment device for detecting performance of the present invention.
Fig. 3 is pressure transducer distribution schematic diagram in spark arrester explosion arrestment device for detecting performance of the present invention.
Specific embodiment
The principle of spark arrester explosion arrestment device for detecting performance of the present invention and method is：Mixed by making fuel gas in detecting system
Compound reaches burning, detonation or detonation state, detects that spark arrester is fire-retardant with this, explosion arrestment combustion or resistance detonation property.Different with traditional
Detection means, detecting system pipeline fixed length of the present invention, tube wall is smooth, is not provided with any disturbance device, by changing ignition energy
That realizes pipe-line blending gas fires state.Conventional detection devices are judged in pipeline by flame sensor or pressure transducer
With the presence or absence of flame, simply qualitatively judge, flame propagation image and pressure that apparatus of the present invention are obtained by high-speed camera
The pressure distribution that sensor is obtained, detects to spark arrester performance qualitative, quantitative.
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
3rd, 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；The front pipe 2, spark arrester 4, rear pipe 5 and pressure release tank 7 are sequentially connected with form of flanges；The quantity of form 3 is 3, opens up respectively
In the position that front pipe 2 is connected with pressure release tank 7 with the position that spark arrester 4 connects, rear pipe 5 with the position that ignitor 1 connects, front pipe 2
Put；The vacuum pump 9 is connected with rear pipe 5 by high pressure leather hose；The outer wall of the front pipe 2 and rear pipe 5 is respectively provided with one or many
Individual pressure transducer 10；Each pressure transducer 10 is connected with signal condition instrument 11 by coaxial cable respectively, signal condition instrument
11 are 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 includes high-speed camera 13, the high-speed camera
After 13 collections at pipe 5 and 7 connecting position of pressure release tank form 3 image, for judging to have or not flame in the form 3.
Further, the pressure transducer 10 is uniformly arranged on the outer wall of front pipe 2 and rear pipe 5 at equal intervals.
Further, ignitor 1 forms ignition system with film, and in conjunction with Fig. 2, ignitor 1, by politef plug
Son and two electrode bar compositions, the sparking mode of the ignitor 1 is spark ignition, hot-wire ignition, 8# industrial detonator
Igniting, ignition charge igniting or 8# industrial detonator and the igniting of hexogen powder column, the ignition energy of different sparking mode is as shown in table 1.
The sparking mode of 1 different-energy of table
Shown according to a series of activities, electric spark can make most of mixed gas in fired state with hot-wire ignition
(before flame propagation reaches spark arrester, similarly hereinafter), 8# industrial detonator makes most of mixed gas in detonation with ignition charge ignition energy
State, 8# industrial detonator is lighted a fire with hexogen powder column, by increasing hexogen dose, can make most of mixed gas in detonation
State.
Further, the pressure transducer 10 is the 113B type sensor of PCB company of the U.S., and sensitivity is 5mv/psi,
Response frequency is more than 500kHz.
With different igniting energy point fire, fuel gas in pipeline is made to fire state in difference, and according to the pressure for arranging
Sensor, obtains the pressure distribution under the conditions of corresponding igniting, and according to pressure distribution data, explosion arrestment fire-retardant to spark arrester combustion with
Resistance detonation property is detected.Corresponding spark arrester explosion arrestment method for testing performance, comprises the following steps：
Step 1, spark arrester 4 is accessed between front pipe 2 and rear pipe 5 formation tubing in the way of flange connection, and manage
Road system is closed；
Step 2, combustible gas mixture being filled in the tubing, determines the sparking mode of ignitor 1, to pipe
Combustible gas mixture in road system is lighted a fire；
Step 3, high-speed camera 13 gather after at pipe 5 and 7 connecting position of pressure release tank form 3 image；Each pressure is passed
Sensor 10 gathers the pressure information of front pipe 2 and rear pipe 5, and is input into data handling system 12 by signal condition instrument 11；
The pressure information that step 4, the image for being collected according to high-speed camera 13 and data handling system 12 are obtained, right
Spark arrester 4 carries out grading performance, and judges the explosion arrestment performance of spark arrester 4.Grading performance is concrete as table 2：
2 spark arrester grading performance of table
Wherein, PL1For the average pressure of 2 each pressure transducer 10 of front pipe, PL2For the average of 5 each pressure transducer 10 of rear pipe
Pressure；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 that obstruction effect is general, 2 tables
Show that obstruction effect is preferable, 3 represent and can intercept completely.
Embodiment 1
In the present embodiment, tubing includes front pipe 2, form 3, spark arrester 4, rear pipe 5, pressure release tank 7.Front pipe 2, spark arrester
4 is the agent structure of system with rear pipe 5, wherein, front pipe range 1.5m, two ends are provided with observation window, rear pipe range 1.0m, and end is provided with
Form.Body material is nichrome, bore Φ 65mm ± 1mm, and pipe thickness is not less than 10mm.Air inlet-mix gas system bag
Include gas cylinder and explosion-proof vacuum pump 9.Test system includes pressure transducer 10, signal condition instrument 11,12 and of data handling system
High-speed camera 13.Wherein sensor 10 is uniformly distributed in 4 both sides of spark arrester such as Fig. 3, and data handling system 12 includes computer
Data acquisition unit with Chengdu micrometering Science and Technology Ltd..
Explosion arrestment performance detection is carried out to certain spark arrester 4, manifold pressure distributed data is obtained by pressure transducer 10.Logical
Cross form 3 observes in pipeline whether have flame, corresponding flame propagation image, concrete detecting step are obtained by high-speed camera 13
As follows：
Step 1, by spark arrester 4 by flange connection in the way of access between front pipe 2 and rear pipe 5, tubing is closed；
Step 2, combustible gas mixture being filled in the tubing, selects II B fuel gas ethylene here, with volume ratio
It is detected gas for 6.5% ± 0.1 ethylene-air mixture；
Step 3, in 2 end of front pipe, by ignition system fires, selected element pyrophoric ignition, makes combustible gas in pipeline here
Body mixture reaches detonation；
Step 4, the high-speed camera photo for being collected according to test system and pressure distribution situation, divide according to spark arrester performance
Level, compares PL1With PL2, judge the explosion arrestment performance quality degree of spark arrester 4.
Pipe no flame after detection discovery, each measuring point pressure value is respectively：51.3kPa, 115.6kPa, 11.7kPa,
4.6kPa.PL1=83.4kPa, PL2=8.1kPa, with reference to table 2, the spark arrester explosion arrestment combustion grade is pipe B2, after spark arrester
In road, pressure is decreased obviously, and illustrates that the spark arrester has preferable explosion arrestment effect.
Claims (7)
1. a kind of spark arrester explosion arrestment device for detecting performance, it is characterised in that 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), letter
Number regulating instrument (11), data handling system (12)；Wherein, ignitor (1) is arranged in flange plate threadably
Between, flange plate is connected with front pipe (2)；Front pipe (2), spark arrester (4), rear pipe (5) and pressure release tank (7) are sequentially with form of flanges
Connection；The quantity of form (3) is 3, is opened in position, front pipe (2) and back-fire relief that front pipe (2) is connected with ignitor (1) respectively
The position that position that device (4) connects, rear pipe (5) are connected with pressure release tank (7)；Described vacuum pump (9) are by high pressure leather hose and rear pipe
(5) connect；The outer wall of front pipe (2) and rear pipe (5) is respectively provided with one or more pressure transducers (10)；Each pressure is passed
Sensor (10) is connected with signal condition instrument (11) by coaxial cable respectively, and signal condition instrument (11) is by data wire and data
Reason system (12) connects；Package unit is placed on support (8).
2. spark arrester explosion arrestment device for detecting performance according to claim 1, it is characterised in that also include high-speed camera
(13), the image of form (3) at (5) and pressure release tank (7) connecting position is managed after the high-speed camera (13) collection, for judging this
Flame is had or not in form (3).
3. spark arrester explosion arrestment device for detecting performance according to claim 1, it is characterised in that pressure transducer (10)
The outer wall of front pipe (2) and rear pipe (5) is uniformly arranged at equal intervals.
4. spark arrester explosion arrestment device for detecting performance according to claim 1, it is characterised in that ignitor (1)
Sparking mode be spark ignition, hot-wire ignition, 8# industrial detonator igniting, ignition charge igniting or 8# industrial detonator and hexogen
Powder column is lighted a fire.
5. spark arrester explosion arrestment device for detecting performance according to claim 1, it is characterised in that pressure transducer (10)
For the 113B type sensor of PCB company of the U.S., sensitivity is that 5mv/psi, response frequency is more than 500kHz.
6. a kind of spark arrester explosion arrestment method for testing performance, it is characterised in that comprise the following steps：
Step 1, by spark arrester (4) by flange connection in the way of access between front pipe (2) and rear pipe (5) formed tubing, and
Tubing is closed；
Step 2, combustible gas mixture being filled in the tubing, determines the sparking mode of ignitor (1), to pipeline
Combustible gas mixture in system is lighted a fire；
The image of form (3) at (5) and pressure release tank (7) connecting position is managed after step 3, high-speed camera (13) collection；Each pressure
The front pipe (2) of force transducer (10) collection and the pressure information of rear pipe (5), and be input into data processing by signal condition instrument (11)
System (12)；
The pressure information that step 4, the image for being collected according to high-speed camera (13) and data handling system (12) are obtained, right
Spark arrester (4) carries out grading performance, and judges the explosion arrestment performance of spark arrester (4).
7. spark arrester explosion arrestment method for testing performance according to claim 6, it is characterised in that according at a high speed described in step 4
The image that video camera (13) is collected and the pressure information that data handling system (12) is obtained, carry out performance to spark arrester (4)
Classification, and judge the explosion arrestment performance of spark arrester (4), grading performance table specific as follows：
Wherein, PL1For the average pressure of front pipe (2) each pressure transducer (10), PL2For rear pipe (5) each pressure transducer (10)
Average pressure；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 that obstruction effect is general,
2 represent that obstruction effect is preferable, and 3 represent and can intercept completely.
Priority Applications (1)
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| CN201610892617.8A CN106441967A (en) | 2016-10-12 | 2016-10-12 | Explosion resistance detecting device and method for flame arrester |
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|---|---|---|---|
| CN201610892617.8A CN106441967A (en) | 2016-10-12 | 2016-10-12 | Explosion resistance detecting device and method for flame arrester |
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| CN106441967A true CN106441967A (en) | 2017-02-22 |
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Cited By (2)
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| CN109506968A (en) * | 2018-11-26 | 2019-03-22 | 天地（常州）自动化股份有限公司 | Underground coal mine beam tube negative pressure ventilation back-fire relief test device and test method |
| CN112229557A (en) * | 2020-09-14 | 2021-01-15 | 中国石油天然气股份有限公司 | Detonator axial output pressure testing assembly with connecting pipe |
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Application publication date: 20170222 |
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