CN106706452A - Controllable anti-explosion performance testing device for fire-retardant core - Google Patents
Controllable anti-explosion performance testing device for fire-retardant core Download PDFInfo
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- CN106706452A CN106706452A CN201710132021.2A CN201710132021A CN106706452A CN 106706452 A CN106706452 A CN 106706452A CN 201710132021 A CN201710132021 A CN 201710132021A CN 106706452 A CN106706452 A CN 106706452A
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- 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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Abstract
The invention provides a controllable anti-explosion performance testing device for a fire-retardant core. The controllable anti-explosion performance testing device comprises a testing frame formed by two sections of square stainless steel pipelines; the lower parts of the pipelines are installed on a guide rail; the first section of square stainless steel pipeline is fixed on the guide rail, and the second section of square stainless steel pipeline is connected with the guide rail by a sliding wheel and can freely slide along the axial direction of the guide rail. The controllable anti-explosion performance testing device can be used for verifying and analyzing the anti-explosion performance of the fire-retardant core in a fire arrestor under a set overpressure by setting different overpressure threshold values, thus reducing the fire arrestor replacement cost of a petrochemical enterprise.
Description
Technical field
The invention belongs to safe and scientific and engineering experiment equipment technical field, and in particular to one kind is used for pipeline fire-retardant core
Carry out the device of antiknock test.
Background technology
Due to the particularity of petroleum chemical industry, to safety and environmental protection requirement more and more higher, the safety valve for discharging on the spot in the past,
Breather valve etc. needs to be connected with pipeline and removes gas recovery system for oil or torch now, which forms the situation that many equipment are connected.
GB31571-2015《Petrochemical industry pollutant emission standard》And GB31570-2015《Petroleum refining enterprise industrial pollutants
Discharge standard》Issuing and implementation, the discharge to petroleum chemical enterprise's organic matter proposes requirement higher.Once some storage tank sets
Apply generation blast accident, flame by influenceing other devices or facility communicating pipe, or even will be formed detonation and turn quick-fried within communicating pipe
Hong process, causes the expansion of accident scope, so as to lift the risk class of whole device.Petroleum chemical enterprise exhales in pipeline and storage tank
Inhale the positions such as valve and be provided with explosion arrestment combustion or explosion arrestment Hong type spark arrester, prevent flame propagation from forming major accident.But spark arrester
, there is detonation in high cost or spark arrester is just replaced in detonation, and entreprise cost is difficult to control to, if spark arrester critical component fire-retardant core can
Entreprise cost will be greatly saved to re-start to utilize after detection is qualified.Chinese patent application 201120399242.4 is carried
The fuel gas and steam of confession explode system safety testing device for spherical container at high temperature under high pressure, and simple structure can only be determined flammable
The explosion limit of gas, can not test the fire-retardant core capability of antidetonance in pipeline.Chinese patent application
The fire test analogue means of 201110370604.1 long-narrow confined spaces for providing " is although it is square to construct a kind of section
Rectangular body device is flashed over studying fire, but the resistance to pressure difference of device, lacks dynamic pressure measurement, without corresponding distribution and pressure relief system,
It is not particularly suited for carrying out antiknock test to fire-retardant core.In addition the country has no the phase tested specifically designed for the fire-retardant core capability of antidetonance
Close patent.
The content of the invention
To overcome above-mentioned technical problem, the present invention to provide a kind of controllable fire-retardant core antiknock test device, difference can be set
Superpressure threshold value, checking analysis is carried out to the capability of antidetonance of the fire-retardant core in spark arrester in the case where superpressure is set, and reduces petroleum chemical enterprise's back-fire relief
Device replacement cost.
The present invention provides a kind of controllable fire-retardant core antiknock test device, and it constitutes test block by the two square stainless steel pipes of section
Frame, pipeline lower section is arranged on guide rail, and the square stainless steel pipes of first segment are fixed on guide rail, the square stainless steel pipes of second section
It is connected with the guide rail by pulley, can be slided in guide rail axial direction.
Wherein, the tail end in the square stainless steel pipes of second section is connected with Arm―Dynamics, Arm―Dynamics control second
Axial movement of the length of tubing on guide rail.
Wherein, the junction of the two square stainless steel pipes of section passes through rubber ring seal.
Wherein, purging interface is set in first segment square stainless steel pipes front end, is connected with air blower by pipeline, drum
Blower fan can play a part of tail gas purging, and blow down valve is set on the connecting pipe between air blower and square stainless steel tube
Door.
Wherein, igniting interface is set in the front end of the square stainless steel pipes of first segment, by pipeline and high-energy igniter
It is connected, high-energy igniter plays a part of operation of lighting a fire.
Wherein, intake interface is set in the front end of the square stainless steel of first segment, is connected with premix gas cylinder by pipeline,
Premix gas cylinder can play a part of fuel gas supply, premix gas cylinder and square stainless steel tube between connecting pipe on set into
Air valve.
Wherein, fire-retardant core fixing device is installed in first segment square stainless steel pipes tail end, is arranged above drawing at it
Pressure pipe, fixes high speed dynamic pressure transducer on pressure guiding pipe.
Wherein, high speed dynamic pressure transducer is connected with number dynamic data acquiring instrument device high, number Dynamic Data Acquiring high
Instrument is connected with PLC control system.
Wherein, PLC control system is also connected by holding wire with Arm―Dynamics, square according to set value calculation second section
Stainless steel pipes are moved on guide rail.
The present invention is also provided carries out back-fire relief cored structure under different superpressures using above-mentioned controllable fire-retardant core antiknock test device
Capability of antidetonance method of testing, it includes：
The first step, connecting components constitute antiknock test device；
Second step, adjusts ignition energy, sets superpressure threshold value；
3rd step, vacuumizes；
4th step, inflation；
5th step, igniting；
6th step, tail gas purging；
7th step, checking analysis, judges the capability of antidetonance.
Beneficial technique effect
The invention provides a kind of controllable fire-retardant core antiknock test device, different superpressure threshold values can be set, according to setting value
Test assessment is carried out to the Fire retardance structure capability of antidetonance, spark arrester alternative costs are saved.
Brief description of the drawings
The controllable fire-retardant core antiknock test device schematic diagrames of Fig. 1.
Specific embodiment
The present invention provides a kind of controllable fire-retardant core antiknock test device, and it constitutes test block by the two square stainless steel pipes of section
Frame, pipeline lower section is arranged on guide rail, and the square stainless steel pipes of first segment are fixed on guide rail, the square stainless steel pipes of second section
It is connected with the guide rail by pulley, can be slided in guide rail axial direction.
Arm―Dynamics are connected with the tail end of the square stainless steel pipes of second section, Arm―Dynamics control the second length of tubing
Axial movement on guide rail, threshold value is born when what superpressure in pipeline exceeded setting, Arm―Dynamics pull the second length of tubing to
After move, operation of releasing is carried out to superpressure, when superpressure be less than or equal to given threshold when, Arm―Dynamics promote the second length of tubing to
The first length of tubing of preceding mobile extruding recovers superpressure.
The junction of the two square stainless steel pipes of section passes through rubber ring seal, by Arm―Dynamics to the second length of tubing
The extruding sealing of realizing between pipeline.
Purging interface is set in first segment square stainless steel pipes front end, is connected with air blower by pipeline, air blower
Tail gas purging can be played a part of, purging valve is set on the connecting pipe between air blower and square stainless steel tube.
Igniting interface is set in the front end of the square stainless steel pipes of first segment, is connected with high-energy igniter by pipeline
Connect, high-energy igniter plays a part of operation of lighting a fire.
Intake interface is set in the front end of the square stainless steel of first segment, is connected with premix gas cylinder by pipeline, premix
Gas cylinder can play a part of fuel gas supply, and intake valve is set on the connecting pipe between premix gas cylinder and square stainless steel tube
Door.
It is connected with the side of the square stainless steel pipes of first segment and vacuumizes interface, is connected with vavuum pump by pipeline,
Valve is provided with connecting pipe, can carry out vacuumizing operation in square shaped stainless steel pipes by vavuum pump.
Drain tap is offered in the square stainless steel pipes tail end of second section, is purged as tail gas and exported.
Accurate pressure is respectively connected with the rear end of the square stainless steel pipes front end of first segment and the square stainless steel pipes of second section
Power table, can carry out real-time monitoring to the pressure after stainless steel pipes air inlet.
Fire-retardant core fixing device is installed in first segment square stainless steel pipes tail end, pressure guiding pipe is arranged above at it,
High speed dynamic pressure transducer is fixed on pressure guiding pipe.
High speed dynamic pressure transducer is connected with number dynamic data acquiring instrument device high, number dynamic data acquiring instrument device high with
PLC control system is connected.
PLC control system is also connected by holding wire with Arm―Dynamics, square stainless according to set value calculation second section
Steel conduit is moved on guide rail.
The Arm―Dynamics side is fixed on pedestal, and opposite side is connected with the square stainless steel pipes of second section, root
It is believed that number carry out movable response, and then control releasing and recovering for superpressure.
The premixed gas uses hydrogen-air gaseous mixture.
The igniter uses high energy pulse igniter, high speed dynamic pressure transducer to respond sensing using delicate level
Device.
The present invention is also provided carries out back-fire relief cored structure under different superpressures using above-mentioned controllable fire-retardant core antiknock test device
Capability of antidetonance method of testing, it includes：
The first step, connecting components constitute antiknock test device, according to each equipment of connection described above, check each pipeline
Interface, valve, sensor interface, etc. position sealing and integrality, check whether exist breakage；
Second step, adjusts ignition energy, sets superpressure threshold value, the fire-retardant core of spark arrester to be measured is fixed on into first segment square
In the fire-retardant core fixing device of stainless steel pipes tail end, the ignition energy of high-energy igniter is adjusted as needed, make premix gas one
It is ignited, detonation state is rapidly entered, while according to the testing requirement to fire-retardant core to be measured, machine is set by PLC control system
The action threshold value of tool power arm, after the superpressure of dynamic pressure transducer exceedes threshold value, Arm―Dynamics drive pipeline rearward
Motion, when the superpressure of dynamic pressure transducer is less than or equal to given threshold, Arm―Dynamics drive the square stainless steel tube of second section
Road is moved forwards, extrudes the square stainless steel pipes of first segment to maintain to set superpressure；
3rd step, vacuumizes, and closes purging valve, air intake valve, drain tap, vavuum pump, vacuum valve is opened, to surveying
Trial assembly is put to be carried out vacuumizing operation, and vavuum pump, vacuum valve are closed after absolute vacuum is reached；
Air intake valve and premix gas cylinder are opened in 4th step, inflation, premix gas are poured into the square stainless steel pipes of test, together
When observed pressure table, after normal pressure is reached, immediately close air intake valve and premixed gas, carried out after pressure stability is errorless next
The igniting of step；
5th step, igniting, starting high-energy igniter carries out igniting operation, fires premix gas in pipeline, and dynamic pressure is passed
Superpressure change in sensor Real-time Collection pipeline, and PLC control system is fed back to by data acquisition device, and then determine that machinery is dynamic
The response mode of the arm of force；
6th step, tail gas purging after firing end, opens drain tap, purging valve, starts air blower, in device
The tail gas that fires carry out purging discharge, purging valve, drain tap are closed after a period of time, stop air blower；
7th step, checking analysis, judges the capability of antidetonance, cancels control of the PLC control system to Arm―Dynamics, is moved back by
Dynamic Arm―Dynamics revocation extruding, takes out the fire-retardant core in fire-retardant core fixing device after the square stainless steel pipes of mobile second section,
Observation fire-retardant core structural failure situation, checking analysis is carried out to back-fire relief cored structure, judges the back-fire relief cored structure capability of antidetonance.
Describe embodiments of the present invention in detail using embodiment and accompanying drawing below, how skill is applied to the present invention whereby
Art means solve technical problem, and reach the implementation process of technique effect and can fully understand and implement according to this.
The controllable fire-retardant core antiknock experimental apparatus for testing that the present invention is provided, is capable of achieving under different superpressures, back-fire relief cored structure
The capability of antidetonance is tested.As shown in figure 1, including：The basic test framework being made up of the two square stainless steel pipes 18 and 19 of section, pipeline
18 are fixed on track 16, and pipeline 19 is connected by pulley with guide rail 16, and two section square pipes keep close by rubber washer 17
Envelope；Interface is opened up with air blower 1, purging valve 2, premix gas cylinder 3, air intake valve 4, the phase of high-energy igniter 5 in the front end of pipeline 18
Even；Interface is opened up in the top of pipeline 18 to be connected with vavuum pump 7, vacuum valve 8；In the front end of pipeline 18 and the rear end of pipeline 19 connection pressure
Power table 6, drain tap 9 is connected in the rear end of pipeline 19；Fire-retardant core fixing device 10 is provided with the end of pipeline 18, is set directly over it
Dynamic pressure transducer 11 is put, is connected with PLC control system 13 by high speed dynamic data acquisition device 12；PLC control system
13 are connected by holding wire with Arm―Dynamics 14, and power arm side is fixed on pedestal 15, and opposite side is connected with pipeline 19, root
It is believed that number carry out movable response, and then control releasing and recovering for superpressure.
Gas is premixed in the present embodiment and uses hydrogen-air gaseous mixture, igniter uses high energy pulse igniter, quick-action high
State pressure sensor uses delicate level response sensor.
The structure capability of antidetonance tested mainly for fire-retardant core carries out quantitative test analysis.The first step, according to schematic diagram and
Experiment needs to connect each instrument and equipment, check each pipe joint, valve, sensor interface, etc. position sealing and integrality,
Check whether there is breakage.Second step, the fire-retardant core of spark arrester to be measured is fixed on the fire-retardant core fixing device of the tail end of pipeline 18
On 10, the ignition energy of high-energy igniter 5 is adjusted as needed, make premix gas one ignited, rapidly enter detonation state, while
According to the testing requirement to fire-retardant core to be measured, the action threshold value of Arm―Dynamics 14 is set by PLC control system 13, work as sensing
After the superpressure of device 11 exceedes threshold value, Arm―Dynamics drive pipeline 19 rearward to move, when the superpressure of sensor 11 is less than or equal to
Given threshold, Arm―Dynamics drive pipeline 19 move forwards, extrusion pipe 18 come maintain set superpressure；3rd step, closes
Purging valve 2, air intake valve 4, drain tap 9, open vavuum pump 7, vacuum valve 8, and test device is carried out to vacuumize operation,
Vavuum pump 7, vacuum valve 8 are closed after absolute vacuum is reached；4th step, opens air intake valve 4, and premix gas is poured into test dress
Put, while observed pressure table 6, after normal pressure is reached, closes air intake valve 4 immediately；5th step, starting high-energy igniter 5 is carried out
Igniting operation, fires premix gas in pipeline, superpressure change in the Real-time Collection pipeline of sensor 11, and by data acquisition device
12 feed back to PLC control system 13, and then determine the response mode of Arm―Dynamics 14.6th step, after firing end, the row of opening
Air valve 9, purging valve 2, start air blower 1, and purging discharge is carried out to the tail gas that fires in device, are closed after a period of time and blown
Valve 2, drain tap 9 are swept, stops air blower 1；7th step, cancels control of the PLC control system 13 to Arm―Dynamics 14, to
Mobile all Arm―Dynamics 14, take out the fire-retardant core in fire-retardant core fixing device 10 afterwards, and checking analysis is carried out to back-fire relief cored structure,
Judge the back-fire relief cored structure capability of antidetonance.
All above-mentioned this intellectual properties of primarily implementation, the not this new product of implementation of setting limitation other forms
And/or new method.Those skilled in the art will be using this important information, the above modification, to realize similar execution feelings
Condition.But, all modifications or transformation are based on the right that new product of the present invention belongs to reservation.
The above, is only presently preferred embodiments of the present invention, is not the limitation for making other forms to the present invention, is appointed
What those skilled in the art changed possibly also with the technology contents of the disclosure above or be modified as equivalent variations etc.
Effect embodiment.But it is every without departing from technical solution of the present invention content, according to technical spirit of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of controllable fire-retardant core antiknock test device, it is characterised in that：Including the square stainless steel pipes composition test block of two sections
Frame, pipeline lower section is arranged on guide rail, and the square stainless steel pipes of first segment are fixed on guide rail, the square stainless steel pipes of second section
It is connected with the guide rail by pulley, can be slided in guide rail axial direction.
2. as claimed in claim 1 controllable fire-retardant core antiknock test device, it is characterised in that：In the square stainless steel pipes of second section
Tail end be connected with Arm―Dynamics, Arm―Dynamics control axial movement of second length of tubing on guide rail.
3. as claimed in claim 1 or 2 controllable fire-retardant core antiknock test device, it is characterised in that：The two square stainless steel pipes of section
Junction pass through rubber ring seal.
4. the controllable fire-retardant core antiknock test device as described in claims 1 to 3, it is characterised in that：In the square stainless steel of first segment
Pipeline front end sets purging interface, is connected with air blower by pipeline, and air blower can play a part of tail gas purging, in drum
Purging valve is set on the connecting pipe between blower fan and square stainless steel tube.
5. the controllable fire-retardant core antiknock test device as described in Claims 1-4, it is characterised in that：In the square stainless of first segment
The front end of steel conduit sets igniting interface, is connected with high-energy igniter by pipeline, and high-energy igniter plays igniting operation
Effect.
6. the controllable fire-retardant core antiknock test device as described in claim 1 to 5, it is characterised in that：In the square stainless of first segment
The front end of steel sets intake interface, is connected with premix gas cylinder by pipeline, and premix gas cylinder can play a part of fuel gas supply,
Air intake valve is set on connecting pipe between premix gas cylinder and square stainless steel tube.
7. the controllable fire-retardant core antiknock test device as described in claim 1 to 6, it is characterised in that：In the square stainless steel of first segment
Pipeline tail end is provided with fire-retardant core fixing device, and pressure guiding pipe is arranged above at it, and high speed dynamic pressure biography is fixed on pressure guiding pipe
Sensor.
8. the controllable fire-retardant core antiknock test device as described in claim 1 to 7, it is characterised in that：High speed dynamic pressure transducer
It is connected with number dynamic data acquiring instrument device high, number dynamic data acquiring instrument device high is connected with PLC control system.
9. the controllable fire-retardant core antiknock test device as described in claim 1 to 8, it is characterised in that：PLC control system is also by letter
Number line is connected with Arm―Dynamics, is moved on guide rail according to the square stainless steel pipes of set value calculation second section.
10. controllable fire-retardant core antiknock test device carries out the anti-knock properties of back-fire relief cored structure under different superpressures described in claim 1 to 9
Energy method of testing, it is characterised in that including：
The first step, connecting components constitute antiknock test device；
Second step, adjusts ignition energy, sets superpressure threshold value；
3rd step, vacuumizes；
4th step, inflation；
5th step, igniting；
6th step, tail gas purging；
7th step, checking analysis, judges the capability of antidetonance.
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| CN201710132021.2A CN106706452B (en) | 2017-03-07 | 2017-03-07 | Controllable fire-retardant core antiknock testing arrangement |
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| CN201710132021.2A CN106706452B (en) | 2017-03-07 | 2017-03-07 | Controllable fire-retardant core antiknock testing arrangement |
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| CN106706452B CN106706452B (en) | 2021-06-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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