CN100442045C - Device for testing explosion-proof performance of barrier explosion-proof material and testing method thereof - Google Patents
Device for testing explosion-proof performance of barrier explosion-proof material and testing method thereof Download PDFInfo
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- CN100442045C CN100442045C CNB2005100028794A CN200510002879A CN100442045C CN 100442045 C CN100442045 C CN 100442045C CN B2005100028794 A CNB2005100028794 A CN B2005100028794A CN 200510002879 A CN200510002879 A CN 200510002879A CN 100442045 C CN100442045 C CN 100442045C
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- 239000000463 material Substances 0.000 title claims abstract description 73
- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 230000004888 barrier function Effects 0.000 title abstract 3
- 239000007789 gas Substances 0.000 claims abstract description 89
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000001294 propane Substances 0.000 claims abstract description 26
- 239000002360 explosive Substances 0.000 claims description 74
- 238000005516 engineering process Methods 0.000 claims description 13
- 238000010304 firing Methods 0.000 claims description 11
- 230000033228 biological regulation Effects 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- -1 comprise support Substances 0.000 claims 1
- 239000000567 combustion gas Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract 10
- 238000013480 data collection Methods 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Abstract
The present invention relates to a device for testing the explosion-preventing performance of a barrier explosion-preventing material, which comprises an explosion vessel arranged on a supporting frame, and the explosion vessel is composed of three explosion cylinders. The explosion vessel can be assembled in groups, and the explosion vessel is convenient for filling and disassembling the barrier explosion-preventing material and is connected with a propane gas bottle, an air compression pump and an explosion test ball. The bottom of the supporting frame is provided with a combustion gas circulating pump, the combustion gas circulating pump is connected with the explosion vessel and an explosion ball in series, and compared with connection with the combustion gas circulating pump in parallel, mixed gas can have higher efficiency and better quality. The explosion vessel and the explosion ball are provided with a high-pressure spark plug, the high-pressure spark plug is connected with a high-pressure igniter, a pressure gauge, a pressure sensor and a temperature sensor, and the pressure sensor and the temperature sensor are connected with an automation multi-path data collection system by a conducting wire. A testing method provided by the present invention overcomes artificial defects because the testing method adopts the automation multi-path data collection system, the testing method achieves rapid collection and has the advantages of reliable data, high accuracy and little error, and the testing method also enhances testing accuracy.
Description
Technical field
What the present invention relates to is a kind of device and method of testing thereof of testing the explosion-proof performance of block blast-proof materials.Specifically, the present invention is the device that fires surge pressure of test block blast-proof materials and to the description of method of testing.
Technical background
Intercepting explosion-proof technology is in the storage tank of inflammable, explosive danger product (as oil, rock gas etc.) block blast-proof materials to be housed, and prevents that danger product are subjected to the blast that mishaies such as naked light, static, collision, gunslinging cause.The key of this technology is to identify that block blast-proof materials quality and explosion-proof performance thereof should meet the specialized range that intercepts explosion-proof technology AQ standard, and its explosion-proof performance satisfies that to fire supercharging value≤0.14Mpa scope be specification product.Block blast-proof materials is to be drawn into netted or chondritic by aluminium alloy foil material through drawing machine.
The explosion-proof performance of block blast-proof materials is in explosive vessel, become the exploded gas of finite concentration and pressure with air mixed with specific inflammable gas, under original pressure and temperature one stable condition, via identical ignition energy with after identical sparking mode is lighted, determine original pressure that block blast-proof materials is not installed in the explosive vessel and the pressure that fires that block blast-proof materials is installed, explosion-proof performance is evaluated in the peak pressure increment that fires when calculating block blast-proof materials.
At present, above-mentioned testing apparatus and method are more coarse, and directly tensimeter and the thermometer changing value on the quick-fried container surveyed in the range estimation record, and error is bigger; Especially can not write down the instantaneous pressure peak value of exploded gas exactly, operating personnel are apart from surveying quick-fried container close together, and accident easily meets accident.
Summary of the invention
The object of the present invention is to provide a kind of device of testing the explosion-proof performance of block blast-proof materials, at explosive vessel with try to be provided with gas circulation pump between the quick-fried ball, can make all even original pressure unanimity of exploded gas concentration in the explosive vessel and meet the condition of firing, satisfy test request, this explosive vessel segmentation assembling design is convenient to the loading and unloading of material.
Another object of the present invention is to provide a kind of method of testing of testing the explosion-proof performance of block blast-proof materials, adopt the robotization multi-path data acquiring system, realize quick moment collection, data are reliable, accuracy is high, error is little.
Proving installation of the present invention is such:
A kind of device of testing the explosion-proof performance of block blast-proof materials, comprise the quick-fried ball of support, explosive vessel and examination, it is characterized in that explosive vessel is located on the support that is welded into by angle steel, propane cylinder is connected explosive vessel with air pressure pump by gas piping, and explosive vessel connects the quick-fried ball of examination by gas piping.Bottom at support is equipped with gas circulation pump, by gas piping and explosive vessel and the quick-fried ball series connection of examination.Tensimeter, pressure transducer, temperature sensor and high-tension spark plug are installed on explosive vessel, and pressure transducer and temperature sensor are connected with the robotization multi-path data acquiring system by lead, and high-tension spark plug connects isolating high-pressure ignitor.
Described explosive vessel by three sections fire the tube constitute, between connect by flange.Its internal diameter is that 300 millimeters, wall thickness are that 8 millimeters stainless-steel tube is made.The length of explosive vessel is that 2000 millimeters, volume are 150 liters.It is middle that to fire tube be 1000 millimeters, by support bar by screw retention on support, left and right two fire tube and respectively are 500 millimeters, the left and right bottom that fires tube all is equipped with roller, can along bracket track left, move right.A left side fires tube and is provided with ball valve and gas outlet, and the left end place that the right side fires tube is provided with high-tension spark plug, and high-tension spark plug links to each other with the high-tension spark plug of the quick-fried ball of examination, and high-tension spark plug links to each other with isolating high-pressure ignitor.
Be provided with six view windows in the side of explosive vessel, view window is made by the heatproof of 130 * 20 millimeters of Φ, withstand voltage tempered glass.
Trying quick-fried ball is spherical structure, 250 millimeters of internal diameter Φ, 8 millimeters of wall thickness, selects for use the 16MnR steel plate to make.Try quick-fried ball and be provided with pressure transducer and high-tension spark plug and ball valve, high-tension spark plug also links to each other with isolating high-pressure ignitor.
The gas piping of propane cylinder and air pressure pump is connected with needle-valve, and needle-valve is installed in the pulpit.
The robotization multi-path data acquiring system includes SC-801C single trigger, A/D converter, 100 bus slots, display and printer.Picking rate is 1000 times/second.
Temperature sensor adopts SI-PN pn junction p n temperature sensor.Temperature test is selected three half words of TD-1 indicator gauge for use.
The tensimeter of selecting for use on the explosive vessel is the precision pressure gauge of YB-160 type 1.6MPa.Atmospheric pressure is measured and is selected boxlike rain glass DYM-3 type for use, and the test error value is not more than 200Pa.
A kind of device of testing the explosion-proof performance of block blast-proof materials of the present invention fires a segmentation assembling because explosive vessel is designed to three sections, is convenient to the filling or the dismounting of block blast-proof materials.Replace gas circulation pump at explosive vessel with the Root's blower that tries to connect between the quick-fried ball through transforming, combustion gas mixing efficient height than gas circulation pump in parallel, quality is good, and Root's blower is not less than circulation gas transmission in 7 minutes the duration of runs, guarantee that the exploded gas concentration in the explosive vessel is even, be convenient to igniting and fire.
A kind of method of testing of testing the explosion-proof performance of block blast-proof materials of the present invention is described below:
1, at first outward appearance, the quality of the block blast-proof materials that will measure are checked, made it meet the scope that intercepts explosion-proof technology AQ standard code.
2, before the test, explosive vessel and the quick-fried ball of examination are carried out airtight test.
3, regulate by needle-valve, fill in the quick-fried ball of examination with the propane gas of propane cylinder with by the air of air pressure pump supercharging and to mix, make exploded gas reach test condition, and write down the original pressure and the temperature value of the not exploded gas of this moment by the robotization multi-path data acquiring system.
4, quick-fried through isolating high-pressure ignitor to the high-tension spark plug that the tries quick-fried ball examination of discharging, light a fire, gather examination and fire the pressure and temperature value when quick-fried, emptying tries the waste gas of quick-fried ball then.
5, the block blast-proof materials lamination is enclosed in the explosive vessel, guarantees that the rate of leaving a blank in the explosive vessel is 5%.
6, not exploded gas original pressure and the concentration of determining according to the quick-fried ball of examination is as the criterion, regulate propane gas and pressurized air filled in explosive vessel and the quick-fried ball of examination simultaneously by needle-valve and prepare, the running of unlatching gas circulation pump, the time of running is not less than 7 minutes, make the original pressure and the concentration of the exploded gas in explosive vessel and the quick-fried ball of examination in full accord, meet the condition of firing, close each valve, gather original pressure and the temperature value of this moment.
7, by isolating high-pressure ignitor the exploded gas in the explosive vessel that block blast-proof materials is housed is carried out discharge igniting, fires, the force value of each pressure transducer on the record explosive vessel, force value is got by printer, and temperature is shown by display.
8, with the pressure data of said determination by the computing machine computing of programming, draw out the pressure curve that fires of this block blast-proof materials, compare with not quick-fried original pressure value firing surge pressure, obtain firing the peak pressure increment.
Adopt the data acquisition system (DAS) of robotization multichannel in the method for testing of this device, can gather instantaneous pressure and temperature value under the different conditions, improved measuring accuracy, data are accurate, reliable, and error is little.
Description of drawings
Fig. 1 is the apparatus structure synoptic diagram of the explosion-proof performance of test block blast-proof materials.
Fig. 2 is cancellated block blast-proof materials structural representation.
Fig. 3 is the block blast-proof materials structural representation of chondritic.
1 propane cylinder wherein, 2 air pressure pumps, 3 propane gas pipings, 4 waste gas exhaust pipes, 5 explosive vessels, 6 ball valves, 7 pressure transducers, 8 master gauges, 9 temperature sensors, 10 gas circulating tubes, 11 high-tension spark plugs, the quick-fried ball of 12 examinations, 13 needle-valves, 14 isolating high-pressure ignitors, the data acquisition system (DAS) of 15 robotization multichannels, 16 temperature indicators, 17 view windows, 18 gas circulation pumps, 19 rollers, 20 supports, 21 netted block blast-proof materialss, 22 spherical block blast-proof materialss.
The embodiment explanation
In conjunction with the accompanying drawings 1,2,3, device of the present invention is specifically described:
A kind of proving installation of testing the explosion-proof performance of block blast-proof materials comprises support 20, explosive vessel 5 and the quick-fried ball 12 of examination.Support 20 is welded by angle steel, drops on the ground by roller mount, moves freely.Explosive vessel 5 is located on the support 20, is provided with the block blast-proof materials 21 or 22 (material does not demonstrate in the accompanying drawing 1) that will test in the explosive vessel 5.Block blast-proof materials is that my company develops, and is drawn into netted or chondritic by aluminium alloy foil material through drawing machine.In testing the explosion-proof performance process of block blast-proof materials, outward appearance, the quality of at first identifying block blast-proof materials must meet the regulation that intercepts explosion-proof technology AQ standard, as the breakage rate of block blast-proof materials mesh and packed density etc.Be decided to be substandard product for the material that does not meet afore mentioned rules, can not test.
Explosive vessel 5 is connected with propane cylinder 1 and air pressure pump 2 by gas piping, and explosive vessel 5 connects the quick-fried ball 12 of examination by gas circulating tube 10 simultaneously, tries quick-fried ball 12 and is supported on the ground by bracing frame.In the bottom of support 20 gas circulation pump 18 is installed, the quick-fried ball of gas circulation pump 18 and explosive vessel 5 and examination 12 is connected by gas piping.On explosive vessel 5 and the quick-fried ball 12 of examination, tensimeter 8, pressure transducer 7, temperature sensor 9, high-tension spark plug 11 and ball valve 6 are installed.Pressure transducer 7 and temperature sensor 9 are connected with robotization multi-path data acquiring system 15 by lead, and high-tension spark plug 11 is connected with isolating high-pressure ignitor 14.
The gas piping of propane cylinder 1 and air pressure pump 2 is connected with metering pin valve 13, and needle-valve 13 is installed in the pulpit.Propane cylinder 1 be with about 95% industrial propane flammable gas can in liquefied petroleum gas steel cylinder.
By the regulation that intercepts explosion-proof technology AQ standard, the leave a blank rate of block blast-proof materials in explosive vessel is 5%.
Propane gas of selecting for use in test and Air mixing gas are as exploded gas; its concentration is that propane gas accounts for the 5%+ air and accounts for 95%; exploded gas fire the condition that fires that pressure must meet exploded gas; the state that fires that just can meet dangerization product in the storage tank; for example after measured; the pressure that fires of above-mentioned exploded gas is 814Kpa, fires about 1500 ℃ of temperature.The original pressure value of the exploded gas of Que Dinging just has authenticity thus.Try quick-fried ball 12 purposes and be exactly the force value that fires, thereby determine the not original pressure of exploded gas in order to the check exploded gas.
Described explosive vessel 5 by three sections fire the tube constitute, between connect by flange.Its internal diameter is that 300 millimeters, wall thickness are that 8 millimeters stainless-steel tube is made.The length of explosive vessel is that 2000 millimeters, volume are 150 liters.It is middle that to fire tube be 1000 millimeters, by support bar by screw retention on support 20, left and right two fire tube and respectively are 500 millimeters, the bottom is equipped with roller 19, can along the track of support 20 left, move right.A left side fires tube and is provided with venting ball valve 6 and gas outlet 4, and the right-hand member place that the right side fires tube is provided with high-tension spark plug 11, and high-tension spark plug 11 is connected with the high-tension spark plug of the quick-fried ball 12 of examination, the isolating high-pressure ignitor 14 that high-tension spark plug 11 connects in the pulpit.
Be provided with six view windows 17 in the side of explosive vessel 5, view window 17 is made by the heatproof of 130 * 20 millimeters of Φ, withstand voltage tempered glass.
The starting condition of the exploded gas in the explosive vessel 5 is by trying the quick-fried mensuration of quick-fried ball 12 examinations.Because Theoretical Calculation is different with the proving installation condition, all will try quick-fried at every turn.The concentration that fires mixed gas, original pressure, the initial temperature tried in the concentration that fires mixed gas, original pressure, initial temperature and the explosive vessel 5 in the quick-fried ball 12 are in full accord.
Try quick-fried ball 12 and be spherical structure, internal diameter is that 250 millimeters of Φ, wall thickness are that 8 millimeters 16MnR steel plate is made.Try quick-fried ball 12 and be provided with pressure transducer 7, high-tension spark plug 11 and ball valve 6.Trying quick-fried ball 12 is connected with explosive vessel 5 and gas circulation pump 18 by gas pipe line.All be connected with needle-valve 13 in the gas pipe line of propane cylinder 1 and air pressure pump 2, needle-valve 13 is installed in the pulpit.
Gas circulation pump that this device uses 18 forms Root's blower transformation, and it is with explosive vessel 5 and try quick-fried ball 12 and be connected into a linker.During distribution, control gas circuits with the ball valve 6 that stainless steel is made; During test, close ball valve 6 and fire.The flammable propane gas of carrying by propane cylinder 1 and be conveyed in explosive vessel 5 and the quick-fried ball 12 of examination by the pressurized air of air pressure pump 2 and be made into certain pressure and concentration, and constantly circulate by gas circulation pump 18, must not make the exploded gas concentration of mixing reach uniformity the duration of runs of gas circulation pump 18 less than 7 minutes.The gas circulation pump 18 of this device adopts the transformations of LGB0.25-2000 type Root's blower to form, and flow is 0.25 cubic meters per minute, and pressure is 0 to 2KPa.
Isolating high-pressure ignitor 14 is the DC pulse that the alternating current of 220V become 2KV, discharges by automobile-used high-tension spark plug, and its ignition energy is 20mJ.
Temperature sensor 9 adopts SI-PN pn junction p n temperature sensor, temperature indicator 16 to select three half words of TD-1 indicator gauge for use.
The tensimeter 8 that uses on explosive vessel 5 is the precision pressure gauge of YB-160 type 1.6Mpa.Atmospheric pressure is measured and is adopted boxlike rain glass DYM-3 type, and the test error value is not more than 200Pa.
Measure block blast-proof materials fire the supercharging value time, the one, the original pressure value that do not fire of exploded gas that test the quick-fried ball 12 of examination, original pressure value when in the explosive vessel 5 block blast-proof materials not being installed in order to substitute, the 2nd, test is equipped with the force value that fires of block blast-proof materials in explosive vessel 5, by the supercharging value that fires surge pressure is compared, evaluate the explosion-proof performance of this block blast-proof materials.Can repeatedly test, be preferably more than 3 times or 3 times for above-mentioned test process, average, the precision height.The original pressure that all the sensors is measured in this device and fire force value and temperature value is finished by robotization multi-path data acquiring system 15.
Robotization multi-path data acquiring system 15 includes 8 drive test amount passages, 100 bus slots, SC-801C single trigger, A/D converter, display and printer.Picking rate is 1000 times/second.Above-mentioned pressure and temperature measuring signal are transported to the SC--801C single trigger by passage, show by display that through A/D converter, temperature pressure is by printer prints.
With above-mentioned mensuration pressure data, by the computing machine computing of programming, draw out corresponding curve by following formula, therefrom obtain firing the supercharging value of peak value.
Δ P=(p
1+ p
2...+p
n)/n-p
b... .. is wherein
Δ p is for firing peak pressure increment (Pa)
P
bOriginal pressure value (Pa) for exploded gas in the explosive vessel.
p
i(i=1,2......n) is for being equipped with the exploded gas of block blast-proof materials, the force value that pressure transducer records when firing (Pa) in the explosive vessel.
N is the number of pressure transducer.
A kind of method of testing of testing the explosion-proof performance of block blast-proof materials of the present invention specifically describes as follows:
1, at first the block blast-proof materials that will measure is carried out the inspection of outward appearance and quality, make it meet the requirement that intercepts explosion-proof technology AQ standard.Breakage rate as netted block blast-proof materials mesh does not allow to exceed 5 places for every square metre, the damaged area at every place must not be greater than 60 millimeters * 50 millimeters, the packed density of block blast-proof materials is 28-30 kilogram/cubic meter etc., all will meet the regulation that intercepts explosion-proof technology AQ standard.
2, before the test, explosive vessel 5 and the quick-fried ball 12 of examination are carried out airtight test.
3, regulate via needle-valve 13, fill in the quick-fried ball 12 of examination with the propane gas of propane cylinder 1 with by the air of the supercharging of air pressure pump 2 and to mix, make exploded gas reach test condition, and by robotization multi-path data acquiring system 15 record original pressure and temperature values.
4, quick-fried through the examination of discharging, light a fire of the high-tension spark plug 11 of the quick-fried balls 12 of 14 pairs of isolating high-pressure ignitors examination, gather the pressure and temperature value of trying when quick-fried, emptying tries the waste gas of quick-fried ball 12 then.
5, block blast-proof materials 21 laminations are packed in the explosive vessel 5, guarantee that the rates of leaving a blank in the explosive vessel 5 are 5%.
6, the original pressure and the concentration of the not exploded gas of determining according to the quick-fried ball of examination 12, regulate propane gas and pressurized air filled in explosive vessel 5 and the quick-fried ball 12 of examination simultaneously by needle-valve 13 and prepare, open gas circulation pump 18 and make its running, the time of running is not less than 7 minutes, make explosive vessel 5 in full accord with the pressure and the concentration of the exploded gas of the quick-fried ball 12 of examination, the initial value that meets above-mentioned exploded gas is closed each valve, gathers original pressure and the temperature value of this moment.
7, the exploded gas that are equipped with in the explosive vessel 5 of block blast-proof materials by 14 pairs of isolating high-pressure ignitors carry out discharge igniting, fire, each pressure transducer 7 of record on the explosive vessel 5 fire pressure and temperature value, by the printer prints result, temperature is shown by display.
8, with the pressure data of said determination by the computing machine computing of programming, draw out the pressure curve that fires of this block blast-proof materials, compare with the original pressure value of exploded gas not firing pressure peak, obtain firing the supercharging value of peak value, whether meet the regulation that intercepts explosion-proof technology AQ standard in order to evaluate this block blast-proof materials; Satisfy that to fire supercharging value≤0.14MPa be specification product, otherwise be substandard product.
The method of the explosion-proof performance of test block blast-proof materials provided by the invention owing to adopt the robotization multi-path data acquiring system, overcomes artificial defect, realizes gathering fast, and data are reliable, accuracy is high, error is little.
Illustrate the situation that a kind of hexagonal block blast-proof materials is measured:
1, selecting the mesh of block blast-proof materials for use is hexagon (shown in Figure 2), and the quality of its block blast-proof materials is 4.560 kilograms.On inspection, the breakage rate of mesh is 0, and the packed density of material is 29.8 kilograms/cubic metre, meets the regulation that intercepts explosion-proof technology AQ standard.
2, charge into 4.8% propane gas in the quick-fried ball 12 and 95.2% pressurized air is prepared in examination.After tested, the original pressure value of trying quick-fried ball 12 is 109.5KPa, and initial temperature is 20 ℃ (calculated value of this value is between the 102-112KPa).
3, block blast-proof materials 21 is enclosed in the explosive vessel 5, the rate of leaving a blank in the explosive vessel 5 is 5%.
4, charge into above-mentioned mixed gas and lighting a fire in explosive vessel 5 and fire, the peak pressure increment that fires that records block blast-proof materials is 41.3KPa, meets the regulation that intercepts explosion-proof technology AQ standard.
Draw thus, a kind of device and method of testing thereof of testing the explosion-proof performance of block blast-proof materials provided by the present invention satisfies the regulation that intercepts explosion-proof technology AQ standard fully.Simultaneously, this device also satisfies the mensuration to the explosion-proof performance of spherical block blast-proof materials 22.
Claims (9)
1, a kind of device of testing the explosion-proof performance of block blast-proof materials, comprise support, explosive vessel and the quick-fried ball of examination, it is characterized in that explosive vessel is located on the support that is welded into by angle steel, propane cylinder is connected explosive vessel with air pressure pump by gas piping, explosive vessel connects the quick-fried ball of examination by gas piping, bottom at support is equipped with gas circulation pump, connect with explosive vessel and the quick-fried ball of examination by gas piping, tensimeter is installed on explosive vessel, pressure transducer, temperature sensor and high-tension spark plug, pressure transducer and temperature sensor are connected with the robotization multi-path data acquiring system by lead, high-tension spark plug connects isolating high-pressure ignitor, tries quick-fried ball and is provided with pressure transducer and high-tension spark plug.
2, a kind of device of testing the explosion-proof performance of block blast-proof materials according to claim 1, it is characterized in that described explosive vessel by three sections fire the tube constitute, between connect by flange; The middle tube that fires is fixed on the support by support bar, left and right two fire the tube the bottom be equipped with roller can along bracket track left, move right, a left side fires tube and is provided with ball valve and gas outlet, the left end place that the right side fires tube is provided with high-tension spark plug, and high-tension spark plug is connected with the high-tension spark plug of the quick-fried ball of examination.
3, a kind of device of testing the explosion-proof performance of block blast-proof materials according to claim 1 is characterized in that the gas piping of described propane cylinder and air pressure pump is connected with needle-valve, and needle-valve is installed in the pulpit.
4, a kind of device of testing the explosion-proof performance of block blast-proof materials according to claim 2 is characterized in that the quick-fried ball of described examination is a spherical structure.
5, a kind of device of testing the explosion-proof performance of block blast-proof materials according to claim 1, it is characterized in that described robotization multi-path data acquiring system includes SC-801C single trigger, A/D converter, 100 bus slots, display and printer, picking rate is 1000 times/second.
6, a kind of device of testing the explosion-proof performance of block blast-proof materials according to claim 2 is characterized in that the side of described explosive vessel is provided with six view windows, and view window is made by the heatproof of 130 * 20 millimeters of Φ, withstand voltage tempered glass.
7, a kind of device of testing the explosion-proof performance of block blast-proof materials according to claim 2, the internal diameter that it is characterized in that described explosive vessel are that 300 millimeters, wall thickness are that 8 millimeters stainless-steel tube is made.
8, a kind of device of testing the explosion-proof performance of block blast-proof materials according to claim 4, the internal diameter that it is characterized in that the quick-fried ball of described examination are that 250 millimeters of Φ, wall thickness are 8 millimeters, select for use the 16MnR steel plate to make.
9, a kind of method of testing of testing the explosion-proof performance of block blast-proof materials is characterized in that:
(1), at first block blast-proof materials outward appearance, the quality that will measure are checked, make it meet the regulation that intercepts explosion-proof technology AQ standard;
(2), the test before, to explosive vessel and the examination quick-fried ball carry out airtight test;
(3), regulate, fill in the quick-fried ball of examination with the propane gas of propane cylinder with by the air of air pressure pump supercharging and to mix, make exploded gas reach starting condition, by robotization multi-path data acquiring system record original pressure and temperature value by needle-valve;
(4), quick-fried through isolating high-pressure ignitor to the high-tension spark plug that the tries quick-fried ball examination of discharging, light a fire, gather the pressure and temperature value of examination when quick-fried, emptying tries the waste gas in the quick-fried ball then;
(5), the block blast-proof materials lamination is enclosed in the explosive vessel, guarantee that the rate of leaving a blank in the explosive vessel is 5%;
(6), original pressure and the concentration according to the definite exploded gas of the quick-fried ball of examination is as the criterion, regulate propane gas and pressurized air filled in explosive vessel and the quick-fried ball of examination by needle-valve and prepare, the running of unlatching gas circulation pump, the time of running is not less than 7 minutes, make the exploded gas pressure in explosive vessel and the quick-fried ball of examination equate in full accord with concentration, the initial value that meets above-mentioned exploded gas is closed each valve, gathers at this moment the not pressure and temperature value of exploded gas;
(7), by isolating high-pressure ignitor to the exploded gas in the explosive vessel that block blast-proof materials is housed discharge, lighting a fire fires, the force value of each pressure transducer of record on the explosive vessel can go out corresponding results by printer, temperature value is shown by display;
(8), with the pressure data of said determination by the computing machine computing of programming, draw out the pressure curve that fires of this block blast-proof materials, compare with the original pressure value that does not fire firing surge pressure, obtain firing the increment of peak pressure.
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| CN100442045C true CN100442045C (en) | 2008-12-10 |
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| CN101968458B (en) * | 2010-09-14 | 2013-06-26 | 中国石油化工股份有限公司 | Blasting risk testing device for liquid phase reaction system and using method thereof |
| CN101968457B (en) * | 2010-09-14 | 2013-06-26 | 中国石油化工股份有限公司 | Explosion danger testing device for gas-phase reaction system and using method thereof |
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