CN102928466B - Oil-gas explosive critical parameter testing device and method - Google Patents
Oil-gas explosive critical parameter testing device and method Download PDFInfo
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- CN102928466B CN102928466B CN201210414246.4A CN201210414246A CN102928466B CN 102928466 B CN102928466 B CN 102928466B CN 201210414246 A CN201210414246 A CN 201210414246A CN 102928466 B CN102928466 B CN 102928466B
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Abstract
The invention discloses an oil-gas explosive critical parameter testing device. The oil-gas explosive critical parameter testing device comprises an explosion reaction pipe, an inert gas supply device, a vacuum pump, a gas analyzer and an ignition device. The invention provides the explosive critical parameter testing device with a high-energy ignition source, which is used for simulating an actual volatilization state of oil gas in an oil tank and uses the online gas analyzer to test an explosive critical parameter, aiming at the problems that the conventional explosive testing device is lack of guiding and practical values of detection data and the like. The oil-gas explosive critical parameter testing device uses a sealing pipeline with a cross section which has an area equivalent to an area between primary seal and secondary seal of the conventional oil storage tank with the volume of 100,000 cubic meters as an explosion reaction pipe; the oxygen concentration and an oil gas concentration of mixed gas inside the pipeline can be respectively controlled by introducing nitrogen and oil gas; an electric sparkle firing and igniting test is carried out; and the explosive strength of the mixed gas, and the oxygen concentration value and the oil gas concentration value before explosion can be tested, so that the upper limit and the lower limit of the oil gas explosions under different oxygen concentrations can be found out. Therefore, the safe section of the oil-gas mixed gas can be found out.
Description
Technical field
The present invention relates to Exploding test technical field, being specifically related to a kind of proving installation for testing gas concentration and oxygen concentration under oil gas explosion critical conditions and method of testing thereof.
Background technology
Oil tank is the important storage device of oil plant, due to the inflammable and explosive property of oil plant and the restricted clearance feature of oil tank, in recent years, the oil tank accident caused due to oil gas explosion constantly occurs, and the critical parameters that research oil gas explosion occurs are significant to oil tank security protection.
The pacing items of oil gas explosion there is oil gas and oxygen, and oil gas refers to the gas generated from oil plant volatilization or effusion, the mainly hydro carbons hydrocarbon such as C1-C6 of gaseous state, and concrete component and oil variety, environment temperature are relevant.Be called that the explosion ratio limit is (referred to as explosion limits when oil gas in oil tank and air (or oxygen) run into the concentration range that burning things which may cause a fire disaster blasts within the scope of finite concentration during Homogeneous phase mixing, comprise lower explosive limit and upper explosion limit), explosion limits is by critical oxygen content (critical value of oxygen concentration required for the mixed gas of namely blasting at explosive range edge) impact.The explosion limits occurred by proving installation test oil gas explosion and critical oxygen content, and adopt scientific analysis method to find oil gas explosion rule, effectively can prevent fuel tank explosion.
At present, so far the device of unified mensuration inflammable gas (liquid vapors) blast characteristics parameter is not still made both at home and abroad, so far explosion limits is still with reference to " the safety technical parameters handbook of inflammable gas and steam " that K. Na Baierte writes, minimum ignition energy is still with reference to Blanc, Guest, the test data of the people such as Vonelbe and Lewis, because various countries adopt proving installation all to adopt volume integral platen press mixed gas compounding and test condition difference (as ignition energy, temperature etc.), test result is also far from each other.In actual applications, usual employing combustible gas alarming instrument or in-line analyzer detect total carbon hydrogen equivalent in mixed gas as the foundation determining whether to occur oil gas explosion, and the oil gas explosion absolute rating therefore adopting the explosion testing device of volume integral platen press mixed gas compounding to detect lacks directiveness.Meanwhile, the main cause of fuel tank explosion is that thunderbolt is on fire, and the discharge energy of thunder and lightning is much larger than the ignition energy of existing test macro, if ignition energy is too low, test result also lacks directiveness.
Summary of the invention
Goal of the invention of the present invention is: the problems such as the detection data deficiency directiveness existed for existing explosion testing device and practical value, provide the actual volatileness of oil gas in a kind of simulative oilcan, adopt on-line gas analysis instrument test blast critical parameters, and there is the blast critical parameters proving installation of high energy ignition source.
The technical scheme of the technology of the present invention is achieved in that a kind of oil gas explosion critical parameters proving installation, it is characterized in that: comprise explosive reaction pipe, inert gas feeding mechanism, vacuum pump, gas analyzer and portfire, one end of described explosive reaction pipe is communicated with one end of vacuum pump by pipeline, the other end of described explosive reaction pipe is communicated with by the other end of the pipeline with vacuum pump that are provided with operation valve five, described inert gas feeding mechanism is communicated with explosive reaction pipe by the pipeline being provided with operation valve two, described gas analyzer is communicated with vacuum pump by the pipeline being provided with retaining valve, described vacuum pump is by the pipeline that is provided with operation valve four and petroleum tank, the oil-gas storage space that crude oil ullage is formed is communicated with, described oil-gas storage space is by being provided with the pipeline of operation valve six and the pipeline communication be communicated with between operation valve five and explosive reaction pipe, described explosive reaction pipe is communicated with air by vent valve, the spark electrode of described portfire is placed in explosive reaction pipe, sensor unit is provided with in described explosive reaction pipe.
Oil gas explosion critical parameters proving installation of the present invention, it is respectively arranged with operation valve one and operation valve three on the pipeline being communicated with described explosive reaction pipe two ends, described operation valve one is arranged between explosive reaction pipe and vacuum pump, described operation valve three is arranged between explosive reaction pipe and operation valve five, described in be provided with the pipeline of operation valve two and the pipeline communication be communicated with between operation valve three and explosive reaction pipe.
Oil gas explosion critical parameters proving installation described in the utility model, gas analyzer described in it is by being provided with the pipeline of operation valve seven and the pipeline communication be communicated with between operation valve five and explosive reaction pipe.
Oil gas explosion critical parameters proving installation of the present invention, sensor unit described in it comprises temperature sensor, pressure transducer, flame sensor and signals collecting and disposal system, and described temperature sensor, pressure transducer are connected with signals collecting and disposal system respectively by signal-transmitting cable with flame sensor.
Oil gas explosion critical parameters proving installation of the present invention, described in it, explosive reaction pipe, inert gas feeding mechanism, vacuum pump, gas analyzer and portfire are all placed in constant temperature oven, and described constant temperature oven is provided with radiator valve.
Oil gas explosion critical parameters proving installation of the present invention, it is provided with the thermometer for monitoring crude oil temperature in described petroleum tank.
A method of testing for oil gas explosion critical parameters proving installation as described in the claims, is characterized in that: mainly comprise the following steps:
A), need to regulate oxygen concentration according to test, in this step, operation valve one, operation valve two, operation valve three, operation valve five, operation valve seven and retaining valve are in open mode, operation valve four, operation valve six and vent valve are in closed condition, inert gas feeding mechanism is filled with inert gas to regulate the concentration of oxygen by operation valve two in explosive reaction pipe, now, operation valve one, explosive reaction pipe, operation valve three, operation valve five and vacuum pump form a circulating pipe system, gas analyzer gathers the gas in described circulating pipe system by pipeline, judge whether the oxygen concentration of gas in circulating pipe system meets test request, when oxygen concentration reaches requirement of experiment, closed control valve two stops passing into inert gas, complete the adjustment of the oxygen concentration of gas in explosive reaction pipe,
B), need according to test oil gas of providing and delivering, in this step, operation valve one, operation valve three, operation valve four, operation valve six, operation valve seven and retaining valve are in open mode, operation valve two, operation valve five and vent valve are in closed condition, now, operation valve one, explosive reaction pipe, operation valve three, operation valve six, oil-gas storage space, operation valve four and vacuum pump form a circulating pipe system, and gas analyzer gathers the gas in described circulating pipe system by pipeline;
C), circulation mixing, in this step, operation valve one, operation valve three, operation valve five, operation valve seven and retaining valve are in open mode, operation valve two, operation valve four, operation valve six and vent valve are in closed condition, now, operation valve one, explosive reaction pipe, operation valve three, operation valve five and vacuum pump form a circulating pipe system, in this circulating pipe system, oxygen and oil gas fully mix, gas analyzer gathers the mixed gas in described circulating pipe system by pipeline, and detects gas concentration and oxygen concentration in mixed gas;
D), igniting test, in this step, operation valve one, operation valve three, operation valve seven and retaining valve are in open mode, operation valve two, operation valve four, operation valve five, operation valve six, vacuum pump and vent valve are in closed condition, sensor unit gathers each parameter in explosive reaction pipe, gas after gas analyzer collection blast, the composition of gas and concentration after detecting blast also record data;
E), clear up, in this step, operation valve one, operation valve three, operation valve five, operation valve seven, retaining valve and vent valve are in open mode, operation valve four and operation valve six are in closed condition, now, gas after pipeline implode is discharged by vacuum pump, passes into air simultaneously, repeat above-mentioned steps again and test next time when the gas in pipeline returns to original state in pipeline.
The method of testing of oil gas explosion critical parameters proving installation of the present invention, it is in described step a), by controlling the supply of inert gas, regulate the oxygen content of gas in explosive reaction pipe in test each time, make oxygen content respectively 20% and above, 19 ~ 20%, 18 ~ 19%, 17 ~ 18%, 16 ~ 17%, 15 ~ 16%, 14 ~ 15%, 13 ~ 14%, 12 ~ 13%, 11 ~ 12%, 10 ~ 11%, 10% and carry out below.
The method of testing of oil gas explosion critical parameters proving installation of the present invention, it is in described step c), when after mixing, if oxygen concentration is not or/and when gas concentration reaches setting value, need to finely tune, be specially: when the oxygen concentration required is lower than under atmospheric oxygen concentration levels, if actual oxygen concentration is lower than the oxygen concentration of testing requirements, then open vent valve to finely tune, if actual oxygen concentration is higher than the oxygen concentration of testing requirements, then opens operation valve two and be filled with inert gas; If actual gas concentration is lower than the gas concentration of testing requirements, then open operation valve four and operation valve six supplements oil gas, if actual gas concentration is higher than the gas concentration of testing requirements, then opens vent valve and finely tune.
The method of testing of oil gas explosion critical parameters proving installation of the present invention, it is in whole process of the test, oil gas explosion critical parameters proving installation is placed in the constant temperature oven of 50 DEG C, and portfire adopts ignition voltage to be 30KV, and ignition energy is that the arcing spark electrode of 40J is as incendiary source.
The present invention is with reference to standard GB/T/T 12474-2008 " in air combustible gas explosion limit assay method ", with a sectional area and existing 10 ten thousand stere storage tank one, the closed conduit that between secondary seal, area is suitable is as explosive reaction pipe, first pass in closed conduit with nitrogen as inerting agent, control the oxygen concentration of mixed gas in pipeline, it is made to reach the required oxygen density value of test, pass into the gas concentration in oil gas adjustment mixed gas again, then electric spark percussion ignition test is carried out, thus the bursting strength of test mixing gas and the oxygen density value before blasting and gas concentration value, thus the upper and lower bound of oil gas explosion under finding different oxygen concentration, to find the security interval of air-fuel mixture gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is control system schematic diagram of the present invention.
Fig. 3 is oil gas explosion scope distribution plan.
Mark in figure: 1 is explosive reaction pipe, and 2 is inert gas feeding mechanism, and 3 is vacuum pump, and 4 is gas analyzer, 5 is portfire, and 6 is operation valve five, and 7 is operation valve two, and 8 is retaining valve, 9 is operation valve four, and 10 is petroleum tank, and 11 is oil-gas storage space, 12 is operation valve six, and 13 is vent valve, and 14 is spark electrode, 15 is operation valve one, and 16 is operation valve three, and 17 is operation valve seven, 18 is constant temperature oven, and 19 is radiator valve, and 20 is thermometer.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the technology of the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As illustrated in fig. 1 and 2, a kind of oil gas explosion critical parameters proving installation, comprise explosive reaction pipe 1, inert gas feeding mechanism 2, vacuum pump 3, gas analyzer 4 and portfire 5, one end of described explosive reaction pipe 1 is communicated with by pipeline one end with vacuum pump 3, the other end of described explosive reaction pipe 1 is communicated with the other end of vacuum pump 3 by the pipeline being provided with operation valve 56, described inert gas feeding mechanism 2 is communicated with explosive reaction pipe 1 by the pipeline being provided with operation valve 27, described gas analyzer 4 is communicated with vacuum pump 3 by the pipeline being provided with retaining valve 8, described gas analyzer 4 is by being provided with the pipeline of operation valve 7 17 and the pipeline communication be communicated with between operation valve 56 and explosive reaction pipe 1, described vacuum pump 3 is by the pipeline that is provided with operation valve 49 and petroleum tank 10, the oil-gas storage space 11 that crude oil ullage is formed is communicated with, described oil-gas storage space 11 is by being provided with the pipeline of operation valve 6 12 and the pipeline communication be communicated with between operation valve 56 and explosive reaction pipe 1, described explosive reaction pipe 1 is communicated with air by vent valve 13, the spark electrode 14 of described portfire 5 is placed in explosive reaction pipe 1, sensor unit is provided with in described explosive reaction pipe 1.
The pipeline being communicated with described explosive reaction pipe 1 two ends is respectively arranged with operation valve 1 and operation valve 3 16, described operation valve 1 is arranged between explosive reaction pipe 1 and vacuum pump 3, described operation valve 3 16 is arranged between explosive reaction pipe 1 and operation valve 56, described in be provided with the pipeline of operation valve 27 and the pipeline communication be communicated with between operation valve 3 16 and explosive reaction pipe 1.
Wherein, described sensor unit comprises temperature sensor, pressure transducer, flame sensor and signals collecting and disposal system, and described temperature sensor, pressure transducer are connected with signals collecting and disposal system respectively by signal-transmitting cable with flame sensor; Described explosive reaction pipe 1, inert gas feeding mechanism (2), vacuum pump 3, gas analyzer 4 and portfire 5 are all placed in constant temperature oven 18, and described constant temperature oven 18 is provided with radiator valve 19; The thermometer 20 for monitoring crude oil temperature is provided with in described petroleum tank 10.
A method of testing for oil gas explosion critical parameters proving installation as described in the claims, mainly comprises the following steps:
A), need to regulate oxygen concentration according to test, in this step, operation valve one, operation valve two, operation valve three, operation valve five, operation valve seven and retaining valve are in open mode, operation valve four, operation valve six and vent valve are in closed condition, and inert gas feeding mechanism is filled with inert gas to regulate the concentration of oxygen by operation valve two in explosive reaction pipe.Described inert gas adopts nitrogen, now, operation valve one, explosive reaction pipe, operation valve three, operation valve five and vacuum pump form a circulating pipe system, gas analyzer gathers the gas in described circulating pipe system by pipeline, judge whether the oxygen concentration of gas in circulating pipe system meets test request, when oxygen concentration reaches requirement of experiment, closed control valve two stops passing into inert gas, completes the adjustment of the oxygen concentration of gas in explosive reaction pipe; By controlling the supply of nitrogen, regulate the oxygen content of gas in explosive reaction pipe in test each time, make oxygen content respectively 20% and above, 19 ~ 20%, 18 ~ 19%, 17 ~ 18%, 16 ~ 17%, 15 ~ 16%, 14 ~ 15%, 13 ~ 14%, 12 ~ 13%, 11 ~ 12%, 10 ~ 11%, 10% and carry out below.
B), need according to test oil gas of providing and delivering, in this step, operation valve one, operation valve three, operation valve four, operation valve six, operation valve seven and retaining valve are in open mode, operation valve two, operation valve five and vent valve are in closed condition, now, operation valve one, explosive reaction pipe, operation valve three, operation valve six, oil-gas storage space, operation valve four and vacuum pump form a circulating pipe system, and gas analyzer gathers the gas in described circulating pipe system by pipeline.
C), circulation mixing, in this step, operation valve one, operation valve three, operation valve five, operation valve seven and retaining valve are in open mode, operation valve two, operation valve four, operation valve six and vent valve are in closed condition, now, operation valve one, explosive reaction pipe, operation valve three, operation valve five and vacuum pump form a circulating pipe system, in this circulating pipe system, oxygen and oil gas fully mix, gas analyzer gathers the mixed gas in described circulating pipe system by pipeline, and detects gas concentration and oxygen concentration in mixed gas;
In above-mentioned steps, when after mixing, if oxygen concentration is not or/and when gas concentration reaches setting value, need to finely tune, be specially: when the oxygen concentration required is lower than under atmospheric oxygen concentration levels, if actual oxygen concentration is lower than the oxygen concentration of testing requirements, then opens vent valve and finely tune, if actual oxygen concentration is higher than the oxygen concentration of testing requirements, then opens operation valve two and be filled with inert gas; If actual gas concentration is lower than the gas concentration of testing requirements, then open operation valve four and operation valve six supplements oil gas, if actual gas concentration is higher than the gas concentration of testing requirements, then opens vent valve and finely tune.
D), igniting test, in this step, operation valve one, operation valve three, operation valve seven and retaining valve are in open mode, operation valve two, operation valve four, operation valve five, operation valve six, vacuum pump and vent valve are in closed condition, sensor unit gathers each parameter in explosive reaction pipe, gas after gas analyzer collection blast, the composition of gas and concentration after detecting blast also record data.
E), clear up, in this step, operation valve one, operation valve three, operation valve five, operation valve seven, retaining valve and vent valve are in open mode, operation valve four and operation valve six are in closed condition, now, gas after pipeline implode is discharged by vacuum pump, passes into air simultaneously, repeat above-mentioned steps again and test next time when the gas in pipeline returns to original state in pipeline.
In whole process of the test, in order to improve experimental measurements, the variable factor affecting this experiment is all arranged from being most disadvantageous in principle, make variable factor be in the state the most easily causing oil gas explosion as far as possible, based on the rule that explosible limit concentration scope can broaden along with the rising of environment temperature, storage tank site environment temperature likely reaches 50 DEG C, therefore constant temperature oven oil gas explosion critical parameters proving installation being placed in 50 DEG C carrys out simulated field environment temperature, effectively prevent oil gas from condensing in blast pipeline simultaneously.Wherein, how to cause because being struck by lightning because petroleum storage tank catches fire, therefore in test, portfire adopts ignition voltage to be 30KV, ignition energy is that the arcing spark electrode of 40J is as incendiary source, far above the regulation of GB/T 12474-2008, and more close to lightning-strike effectiveness, and to be better than be have spark ignition power supply common in explosion accident, be also better than cause oil gas subsequent explosion Mars, glow thing energy.
Carry out repeated experiment under the same conditions to same gas, error is not more than 0.5% and meets the demands.Otherwise should instrument be adjusted, and the impermeability of device is detected, until meet the demands.
Occur that following phenomenon all thinks that an explosion occurred in an experiment:
1) flame is slowly propagated with certain speed;
2) occur that then flame extinguish at sparking electrode;
3) react overpressure to undergo mutation;
4) CO in reaction tube
2undergo mutation with CO gas concentration;
5) in reaction tube, the temperature of temperature sensor changes suddenly.
By carrying out high-energy ignition experiment to different air-fuel mixture gas, and extracting the data of monitor, comprising temperature, crude oil temperature etc. before and after pressure and pipe explosion, initial analysis and conclusion are carried out to data, draw oil gas explosion scope distribution plan as shown in Figure 3.
To arrangement and the initial analysis of data, based on oil gas explosion physics and chemical characteristic, can draw the following conclusions:
(1) experiment shows that crude oil vapor concentration is 1 ~ 2%, and when oxygen content is normal atmosphere pressure content of oxygen in air, mixed gas is the most easily lighted, and the explosive combustion occurred when lighting is the most violent.
(2) when in mixed gas, oxygen content is below 10%, no matter how high hydrocarbon content is, and whole mixed gas is in not by the state of lighting.
(3) when hydrocarbon content in mixed gas reach 5% and above time, oxygen content is between 0 ~ 21%, and mixed gas is all in not by the state of lighting.This is the maximum value of oil gas explosion.
(4) when hydrocarbon content in mixed gas 0.5% and following time, oxygen content is between 0 ~ 21%, and mixed gas is all in not by the state of lighting.This is the lowest limit of oil gas explosion.
(5) experiment shows, different oxygen contents (oxygen content is often got 1 percentage point and done an oil gas explosion upper and lower bound experiment in experimentation), the upper and lower limit of corresponding oil gas explosion is different, all can raise with the upper limit of the rising oil gas explosion of oxygen, lower limit.As shown in the table:
As can be seen here, in the confined space of mixed gas being filled with crude oil vapor and air, very easily lighted when oxygen concentration reaches capacity and exploded, when oxygen concentration lower explosive limit and following time this space be then in and can not be lighted or ignite fried state.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an oil gas explosion critical parameters proving installation, it is characterized in that: comprise explosive reaction pipe (1), inert gas feeding mechanism (2), vacuum pump (3), gas analyzer (4) and portfire (5), one end of described explosive reaction pipe (1) is communicated with by pipeline one end with vacuum pump (3), the other end of described explosive reaction pipe (1) is communicated with the other end of vacuum pump (3) by the pipeline being provided with operation valve five (6), described inert gas feeding mechanism (2) is communicated with explosive reaction pipe (1) by the pipeline being provided with operation valve two (7), described gas analyzer (4) is communicated with vacuum pump (3) by the pipeline being provided with retaining valve (8), described vacuum pump (3) is by the pipeline that is provided with operation valve four (9) and petroleum tank (10), the oil-gas storage space (11) that crude oil ullage is formed is communicated with, described oil-gas storage space (11) is by being provided with the pipeline of operation valve six (12) and the pipeline communication be communicated with between operation valve five (6) and explosive reaction pipe (1), described explosive reaction pipe (1) is communicated with air by vent valve (13), the spark electrode (14) of described portfire (5) is placed in explosive reaction pipe (1), sensor unit is provided with in described explosive reaction pipe (1).
2. oil gas explosion critical parameters proving installation according to claim 1, it is characterized in that: on the pipeline being communicated with described explosive reaction pipe (1) two ends, be respectively arranged with operation valve one (15) and operation valve three (16), described operation valve one (15) is arranged between explosive reaction pipe (1) and vacuum pump (3), described operation valve three (16) is arranged between explosive reaction pipe (1) and operation valve five (6), described in be provided with the pipeline of operation valve two (7) and the pipeline communication be communicated with between operation valve three (16) and explosive reaction pipe (1).
3. oil gas explosion critical parameters proving installation according to claim 2, is characterized in that: described gas analyzer (4) is by being provided with the pipeline of operation valve seven (17) and the pipeline communication be communicated with between operation valve five (6) and explosive reaction pipe (1).
4. the oil gas explosion critical parameters proving installation according to claim 1,2 or 3, it is characterized in that: described sensor unit comprises temperature sensor, pressure transducer, flame sensor and signals collecting and disposal system, described temperature sensor, pressure transducer are connected with signals collecting and disposal system respectively by signal-transmitting cable with flame sensor.
5. oil gas explosion critical parameters proving installation according to claim 4, it is characterized in that: described explosive reaction pipe (1), inert gas feeding mechanism (2), vacuum pump (3), gas analyzer (4) and portfire (5) are all placed in constant temperature oven (18), described constant temperature oven (18) are provided with radiator valve (19).
6. oil gas explosion critical parameters proving installation according to claim 5, is characterized in that: in described petroleum tank (10), be provided with the thermometer (20) for monitoring crude oil temperature.
7. adopt a method of testing for oil gas explosion critical parameters proving installation as claimed in claim 3, it is characterized in that: mainly comprise the following steps:
A), need to regulate oxygen concentration according to test, in this step, operation valve one, operation valve two, operation valve three, operation valve five, operation valve seven and retaining valve are in open mode, operation valve four, operation valve six and vent valve are in closed condition, inert gas feeding mechanism is filled with inert gas to regulate the concentration of oxygen by operation valve two in explosive reaction pipe, now, operation valve one, explosive reaction pipe, operation valve three, operation valve five and vacuum pump form a circulating pipe system, gas analyzer gathers the gas in described circulating pipe system by pipeline, judge whether the oxygen concentration of gas in circulating pipe system meets test request, when oxygen concentration reaches requirement of experiment, closed control valve two stops passing into inert gas, complete the adjustment of the oxygen concentration of gas in explosive reaction pipe,
B), need according to test oil gas of providing and delivering, in this step, operation valve one, operation valve three, operation valve four, operation valve six, operation valve seven and retaining valve are in open mode, operation valve two, operation valve five and vent valve are in closed condition, now, operation valve one, explosive reaction pipe, operation valve three, operation valve six, oil-gas storage space, operation valve four and vacuum pump form a circulating pipe system, and gas analyzer gathers the gas in described circulating pipe system by pipeline;
C), circulation mixing, in this step, operation valve one, operation valve three, operation valve five, operation valve seven and retaining valve are in open mode, operation valve two, operation valve four, operation valve six and vent valve are in closed condition, now, operation valve one, explosive reaction pipe, operation valve three, operation valve five and vacuum pump form a circulating pipe system, in this circulating pipe system, oxygen and oil gas fully mix, gas analyzer gathers the mixed gas in described circulating pipe system by pipeline, and detects gas concentration and oxygen concentration in mixed gas;
D), igniting test, in this step, operation valve one, operation valve three, operation valve seven and retaining valve are in open mode, operation valve two, operation valve four, operation valve five, operation valve six, vacuum pump and vent valve are in closed condition, sensor unit gathers each parameter in explosive reaction pipe, gas after gas analyzer collection blast, the composition of gas and concentration after detecting blast also record data;
E), clear up, in this step, operation valve one, operation valve three, operation valve five, operation valve seven, retaining valve and vent valve are in open mode, operation valve four and operation valve six are in closed condition, now, gas after pipeline implode is discharged by vacuum pump, passes into air simultaneously, repeat above-mentioned steps again and test next time when the gas in pipeline returns to original state in pipeline.
8. the method for testing of oil gas explosion critical parameters proving installation according to claim 7, it is characterized in that: in described step a), by controlling the supply of inert gas, regulate the oxygen content of gas in explosive reaction pipe in test each time, make oxygen content respectively 20% ~ 21%, 19 ~ 20%, 18 ~ 19%, 17 ~ 18%, 16 ~ 17%, 15 ~ 16%, 14 ~ 15%, 13 ~ 14%, 12 ~ 13%, 11 ~ 12%, 10 ~ 11%, 10% and carry out below.
9. the method for testing of oil gas explosion critical parameters proving installation according to claim 8, it is characterized in that: in described step c), when after mixing, if oxygen concentration is not or/and when gas concentration reaches setting value, need to finely tune, be specially: when the oxygen concentration required is lower than under atmospheric oxygen concentration levels, if actual oxygen concentration is lower than the oxygen concentration of testing requirements, then open vent valve to finely tune, if actual oxygen concentration is higher than the oxygen concentration of testing requirements, then opens operation valve two and be filled with inert gas; If actual gas concentration is lower than the gas concentration of testing requirements, then open operation valve four and operation valve six supplements oil gas, if actual gas concentration is higher than the gas concentration of testing requirements, then opens vent valve and finely tune.
10. the method for testing of the oil gas explosion critical parameters proving installation according to claim 7,8 or 9, it is characterized in that: in whole process of the test, oil gas explosion critical parameters proving installation is placed in the constant temperature oven of 50 DEG C, portfire adopts ignition voltage to be 30KV, and ignition energy is that the arcing spark electrode of 40J is as incendiary source.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB816797A (en) * | 1956-01-06 | 1959-07-22 | North Thames Gas Board | Improvements in or relating to apparatus for testing combustible gas |
| JPS58147632A (en) * | 1982-02-26 | 1983-09-02 | Kanegafuchi Chem Ind Co Ltd | Device for measuring concentration at inflammable limit |
| CN2466646Y (en) * | 2001-02-27 | 2001-12-19 | 东北大学 | High-temp. combustible vapor explosivity determining device |
| CN201449381U (en) * | 2009-04-29 | 2010-05-05 | 莫苏萍 | Automatic explosimeter |
| CN101726573A (en) * | 2009-11-30 | 2010-06-09 | 浙江工业大学 | Combustible gas explosion experiment system |
| CN201837624U (en) * | 2010-10-18 | 2011-05-18 | 南京工业大学 | Combustible gas explosion limit test system under non-standard state |
| CN102608161A (en) * | 2012-03-07 | 2012-07-25 | 北京理工大学 | Method for testing critical energy of detonation formed by direct initiation |
| CN102608284A (en) * | 2011-12-23 | 2012-07-25 | 南京工业大学 | Method for determining explosion limit of multi-component mixed gas |
| CN202870017U (en) * | 2012-10-25 | 2013-04-10 | 四川威特龙消防设备有限公司 | Oil-gas explosion critical parameter testing device |
-
2012
- 2012-10-25 CN CN201210414246.4A patent/CN102928466B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB816797A (en) * | 1956-01-06 | 1959-07-22 | North Thames Gas Board | Improvements in or relating to apparatus for testing combustible gas |
| JPS58147632A (en) * | 1982-02-26 | 1983-09-02 | Kanegafuchi Chem Ind Co Ltd | Device for measuring concentration at inflammable limit |
| CN2466646Y (en) * | 2001-02-27 | 2001-12-19 | 东北大学 | High-temp. combustible vapor explosivity determining device |
| CN201449381U (en) * | 2009-04-29 | 2010-05-05 | 莫苏萍 | Automatic explosimeter |
| CN101726573A (en) * | 2009-11-30 | 2010-06-09 | 浙江工业大学 | Combustible gas explosion experiment system |
| CN201837624U (en) * | 2010-10-18 | 2011-05-18 | 南京工业大学 | Combustible gas explosion limit test system under non-standard state |
| CN102608284A (en) * | 2011-12-23 | 2012-07-25 | 南京工业大学 | Method for determining explosion limit of multi-component mixed gas |
| CN102608161A (en) * | 2012-03-07 | 2012-07-25 | 北京理工大学 | Method for testing critical energy of detonation formed by direct initiation |
| CN202870017U (en) * | 2012-10-25 | 2013-04-10 | 四川威特龙消防设备有限公司 | Oil-gas explosion critical parameter testing device |
Non-Patent Citations (5)
| Title |
|---|
| Investigations on flammability models and zones for o-xylene under various initial pressures, temperatures and oxygen concentrations;Chi-Min Shu, Po-Jiun Wen, Ron-Hsin Chang;《Thermochimica Acta》;20021231;全文 * |
| 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.空气中可燃气体爆炸极限测定方法.《中华人民共和国国家标准》.2008,1-3. * |
| 傅志远,谭迎新.多元可燃性混合气体临界氧浓度的测定.《工业安全与环保》.2004,第30卷(第12期), * |
| 模拟油罐油气混合物爆炸实验;高建丰等;《后勤工程学院学报》;20071231(第1期);全文 * |
| 狭长受限空间油气爆炸关键现象研究;程顺国等;《后勤工程学院学报》;20101130;第26卷(第6期);第27页第2-4段，图1 * |
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