CN103076363A - Method for determining critical pressure range for explosive decomposition of pressure sensitive gas - Google Patents
Method for determining critical pressure range for explosive decomposition of pressure sensitive gas Download PDFInfo
- Publication number
- CN103076363A CN103076363A CN2012104060093A CN201210406009A CN103076363A CN 103076363 A CN103076363 A CN 103076363A CN 2012104060093 A CN2012104060093 A CN 2012104060093A CN 201210406009 A CN201210406009 A CN 201210406009A CN 103076363 A CN103076363 A CN 103076363A
- Authority
- CN
- China
- Prior art keywords
- pressure
- gas
- sensibility
- compressor
- autoclave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a pressure sensitive explosive testing device based method for determining a critical pressure range for explosive decomposition of pressure sensitive gas without participation of oxygen. The method comprises steps of: step 1, vacuumizing; step 2, preheating the pressure sensitive gas to be tested; and step 3, compressing the pressure sensitive gas to be tested, and determining the critical pressure range for explosive decomposition of the pressure sensitive gas without participation of oxygen. The test method can determine the critical pressure range for explosive decomposition of pressure sensitive gas without participation of oxygen, and has advantages of wide test range for the critical pressure range, precise controlled temperature in the test process, and examination on stability of pressure sensitive gas under high temperature and high pressure for a long time.
Description
Technical field
The invention belongs to the petrochemical technology field, relate in particular to a kind of method of emergent pressure scope of test pressure susceptibility gas generation decomposition explosion.
Background technology
In petrochemicals production and transportation, because acetylene, butadiene, vinylacetylene, the gases such as methyl nitrite are comparatively responsive to pressure, after pressure surpasses certain value, even also decomposition explosion can occur under the condition that does not have oxygen to participate in, the safety that needs its blast characteristics research is guaranteed production and transport in the operating mode production and transport process, this just needs test, and it issues the emergent pressure of solution blast estranged in the condition that does not have oxygen to participate in, therefore, the system that the blast characteristics test of this type of gas is needed an airtight compressible controllable temperature, change the pressure of pressure sensibility gas by the volume that changes system, thereby realize the test of emergent pressure.
Gas phase fires the proving installation of parameter at present, all be to fire test for " inflammable gas+oxidisability combustion-supporting gas " system or " inflammable gas+oxidizing gas+inert gas " system, proving installation is airtight incompressible device, and all need the participation of oxygen, can't satisfy the requirement of this type of pressure sensibility gas being measured the emergent pressure of its decomposition explosion under the condition that does not have oxygen to participate in.
The application's applicant is to measure the emergent pressure of measuring its decomposition explosion under the condition that pressure sensibility gas acetylene do not having oxygen to participate at the patent acetylene gas pressure sensitivity explosion testing device (patent publication No. CN101995449A) of having applied for before, but the defective that adopts this device to exist is that its test pressure scope is narrow, emergent pressure in the time of only testing emergent pressure scope that decomposition explosion the occurs pressure sensibility gas generation decomposition explosion close with acetylene, and can't obtain the test to pressure sensibility gas of other emergent pressure scopes, in addition, adopt this device can't investigate the stability of pressure sensibility gas under long-time high-temperature and high-pressure conditions.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method that adopts the test of pressure sensibility explosion testing device pressure sensibility gas to be issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, adopt this method of testing can measure the emergent pressure scope that pressure sensibility gas is issued solution blast estranged in the condition that does not have oxygen to participate in, the emergent pressure scope of its test is wide, temperature to test process can accurately be controlled, and can investigate the stability of pressure sensibility gas under long-time high-temperature and high-pressure conditions simultaneously.
For solving the problems of the technologies described above, the invention provides a kind of method that adopts the test of pressure sensibility explosion testing device pressure sensibility gas to be issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, it comprises:
The first step vacuumizes;
Second step is to pressure sensibility gas preheating to be tested;
In the 3rd step, to pressure sensibility gas compression to be tested, measure it issues solution blast estranged in the condition that does not have oxygen to participate in emergent pressure scope;
Described pressure sensibility explosion testing device comprises:
Compressor, Detonation Tube, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit, described temperature-detecting device is positioned on the described Detonation Tube, described Detonation Tube is connected by pipeline with described compressor, described pressure-detecting device is positioned on the described compressor, described vacuum pump is connected with described compressor, and described chromatograph also is connected with described compressor.
Wherein, the described first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before further being specially the experiment beginning, then vacuumizes for subsequent use with vacuum pump.
Wherein, described second step further is specially pressure sensibility gas to be tested sent into and carries out preheating in the Detonation Tube, obtain needed temperature under the high temperature and high pressure condition condition, preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line.
Wherein, described the 3rd step further is specially described pressure sensibility gas to be tested and carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrates that if gas composition does not change decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure.
The present invention also provides a kind of method that adopts the test of pressure sensibility explosion testing device pressure sensibility gas to be issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, described pressure sensibility explosion testing device comprises compressor, Detonation Tube, autoclave, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit, described temperature-detecting device is positioned on the described Detonation Tube, described Detonation Tube is connected by pipeline with described compressor, described pressure-detecting device is positioned on the described compressor, described autoclave is connected with described compressor, described vacuum pump is connected with described autoclave, described chromatograph is connected with described autoclave with described compressor, and described method of testing comprises:
The first step vacuumizes;
Second step is to pressure sensibility gas preheating to be tested;
In the 3rd step, to pressure sensibility gas compression to be tested, measure it issues solution blast estranged in the condition that does not have oxygen to participate in emergent pressure scope;
The 4th step, for the transient pressure susceptibility gas that does not record critical decomposition pressure, after it is compressed by described compressor, the autoclave that passes into after vacuumizing is airtight, autoclave temp is set identical with working temperature, gas at set intervals gas phase of chromatograph instrument forms, and judges that gas decomposes situation.
Wherein, the described first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before further being specially the experiment beginning, then vacuumizes for subsequent use with vacuum pump.
Wherein, described second step further is specially pressure sensibility gas to be tested sent into and carries out preheating in the Detonation Tube, obtain needed temperature under the high temperature and high pressure condition condition, preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line.
Wherein, described the 3rd step further is specially described pressure sensibility gas to be tested and carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrates that if gas composition does not change decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure.
The present invention also provides a kind of method that adopts the test of pressure sensibility explosion testing device pressure sensibility gas to be issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, described pressure sensibility explosion testing device comprises compressor, Detonation Tube, autoclave, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit, described temperature-detecting device is positioned on the described Detonation Tube, described Detonation Tube is connected by pipeline with described compressor, described pressure-detecting device is positioned on the described compressor, described autoclave is connected with described compressor, described vacuum pump is connected with described autoclave, described chromatograph is connected with described autoclave with described compressor, and described method of testing comprises:
The first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before the experiment beginning, then vacuumizes for subsequent use with vacuum pump;
Second step is sent into pressure sensibility gas to be tested and is carried out preheating in the Detonation Tube, obtains needed temperature under the high temperature and high pressure condition condition, and preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line;
The 3rd step, described pressure sensibility gas to be tested carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrates that if gas composition does not change decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure;
The 4th step, for the transient pressure susceptibility gas that does not record critical decomposition pressure, after it is compressed by described compressor, the autoclave that passes into after vacuumizing is airtight, autoclave temp is set identical with working temperature, gas at set intervals gas phase of chromatograph instrument forms, and judges that gas decomposes situation.
The present invention also provides the above-mentioned application of method in the petrochemical complex safety in production that pressure sensibility gas is issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in.
The technique effect that the present invention is useful is:
Employing pressure sensibility explosion testing device test provided by the invention can be measured the emergent pressure scope that pressure sensibility gas is issued solution blast estranged in the condition that does not have oxygen to participate in to pressure sensibility gas in the method that the condition that does not have oxygen to participate in issues the emergent pressure scope of solution blast estranged, the emergent pressure scope of its test is wide, temperature to test process can accurately be controlled, and can investigate the stability of pressure sensibility gas under long-time high-temperature and high-pressure conditions simultaneously.
Description of drawings
Fig. 1 is pressure sensibility explosion testing device structural drawing provided by the invention;
Fig. 2 is the structural drawing of the Detonation Tube in the pressure sensibility explosion testing device provided by the invention.
Reference numeral is as follows: 1-compressor one-level compression section; 2-compressor two-stage compression part; 3-1 level rain glass; 4-2 level rain glass; The 5-autoclave; The 6-tensimeter; The 7-thermometer; The 8-vacuum pump; The 9-Computer Control Unit; The 10-compressor; 11-1 level temperature sensor; 12-2 level temperature sensor; 13-1 level oil pressure gauge; 14-2 level oil pressure gauge; The 15-rupture disk;
The Detonation Tube mark is as follows: the 1A-vacuum pump; The 2A-surge tank; 3A-vacuum pump ball valve; The 4A-needle-valve; The 5A-retaining valve; 6A-sample introduction needle-valve; 7A-detonation body; The 8A-view window; The 9A-attemperating unit; The 10A-circulating fan; The 11A-tail gas discharging pipe; The 12A-digital pressure gauge; 13A-compressor inlet needle-valve; The 14A-safety valve.
Embodiment
The invention provides and a kind of pressure sensibility gas is carried out the pressure sensibility explosion testing device, it comprises:
Compressor, Detonation Tube, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit;
Described Detonation Tube is used for pressure sensibility gas is carried out preheating, obtains needed temperature under the high temperature and high pressure condition condition;
Described temperature-detecting device is positioned on the described Detonation Tube, for detection of the temperature of carrying out the preheating of pressure sensibility gas in the Detonation Tube, and temperature feedback to Computer Control Unit, according to the Computer Control Unit feedack, is controlled the preheat temperature in the Detonation Tube;
Described Detonation Tube is connected by pipeline with described compressor, and the pressure sensibility gas of process Detonation Tube preheating enters into described compressor;
Described compressor is used for pressure sensibility gas is compressed, thereby measures pressure sensibility gas issues solution explosion time estranged in the condition that does not have oxygen to participate in emergent pressure;
Described pressure-detecting device is positioned on the described compressor, be used for detecting in real time the pressure of compressor, and information fed back to Computer Control Unit, the Computer Control Unit feedack, the control compressor to the compression that is positioned at pressure sensibility gas wherein with stop;
Described vacuum pump is connected with described compressor, is used for described compressor and Detonation Tube are vacuumized;
Whether described chromatograph also is connected with described compressor, decompose for detection of the pressure sensibility gas after stopping to compress in the described compressor, thereby judge whether to arrive emergent pressure;
Described Computer Control Unit is used for the temperature of the described Detonation Tube of Real Time Monitoring and the compressed pressure that produces of described pressure sensibility gas in the described compressor.
Further, described pressure sensibility explosion testing device can only be made of above-mentioned parts.
Needed temperature range is normal temperature ~ 200 ℃.
Some unstable gas does not record critical decomposition pressure in compression process, but having under the condition of certain temperature and pressure and can slowly decompose, decompose and emit energy, when energy accumulation can accelerated decomposition after to a certain extent, thereby explosion caused, whether the autoacceleration decomposition explosion occurs in storage process for investigating unstable gas, described pressure sensibility explosion testing device further comprises autoclave, described autoclave is arranged between described compressor and the described vacuum pump, be connected with described compressor on one side, be connected with described vacuum pump on one side, through compressor compresses but the pressure sensibility gas that does not record critical decomposition pressure enters into autoclave investigates the stability of pressure sensibility gas under long-time high-temperature and high-pressure conditions (being working condition), the test specification of High Temperature High Pressure is normal pressure ~ 3MPa, temperature: normal temperature ~ 200 ℃, described vacuum pump also is used for described autoclave is vacuumized, described chromatograph also is connected with described autoclave, is used for judging the decomposition situation under high-temperature and high-pressure conditions of this class pressure sensibility gas.
Also be provided with pressure-detecting device and temperature-detecting device on described autoclave, described pressure-detecting device can be tensimeter, and described temperature-detecting device can be thermometer.
The pipeline that is connected between described Detonation Tube and described vacuum pump is equipped with companion's heat, its Temperature Setting is identical with Temperature Setting on the described Detonation Tube, it is the temperature to be tested of gas, be used for making described pressure sensibility gas to keep constant in the temperature of whole test period and test link, to record accurately the emergent pressure of gas under this temperature, the material of described connecting line can be steel.
Described compressor mainly comprises cylinder and pushing piston, by the propelling of piston being realized the compression of pressure sensibility gas volume, thereby improve the pressure of compressor, monitor at any time compressor temperature and pressure signal in the compressor pressure elevation process, when pressure signal raises suddenly, illustrate that decomposition has occured pressure sensibility gas, has produced blast.
The cylinder skin of described compressor has chuck, carries out temperature control by conduction oil.
Described pressure-detecting device is positioned on the cylinder of described compressor, it can be pressure transducer, pressure transducer connects Computer Control Unit, by the pressure information on the Real-time Feedback compressor, thereby record pressure curve at Computer Control Unit, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, chromatograph instrument gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrates that if gas composition does not change decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure.
Described compressor comprises one-level compression section and two-stage compression part, connect by pipeline between the air intake opening of the exhausr port of described one-level compression section and two-stage compression part, have two retaining valves on the described one-level compression section, when piston moves downward, the air intake opening retaining valve is opened, the gas outlet closed check valve is finished air-breathing; When piston moves upward, the air intake opening closed check valve, the gas outlet retaining valve is opened, finish compression exhaust, the gas after the compression enters the two-stage compression part, has two retaining valves on the described two-stage compression part, when piston moves downward, the air intake opening retaining valve is opened, and the gas outlet closed check valve is finished air-breathing; When piston moves upward, the air intake opening closed check valve, the gas outlet retaining valve is opened, finish compression exhaust, the one-level compression section makes the pressure of gas rise to 0.5MPa by normal pressure, to 3MPa, this compressor is got through transforming by the M2V-5/200 that Dandong gold ancient cooking vessel compressor company limited produces the pressure that two-stage compression partly makes gas by the promotion of 0.5MPa.
Further, described compressor only partly is made of one-level compression section and two-stage compression.
4 tensimeters and 2 temperature sensors are arranged on the described compressor, four tensimeters are respectively 1 grade of oil pressure gauges, 1 grade of rain glass and 2 grades of oil pressure gauges, 2 grades of rain glasss, what oil pressure gauge showed is the pressure of compressor oil, what rain glass showed is current gaseous tension to be compressed, oil pressure gauge and rain glass feed back to Computer Control Unit with the pressure information that obtains, 1 grade of oil pressure gauge and 1 grade of rain glass are positioned on the one-level compression section of described compressor, 2 grades of oil pressure gauges and 2 grades of rain glasss are positioned on the two-stage compression part of described compressor, 2 temperature sensors lay respectively at one-level compression section and the two-stage compression part of described compressor, be respectively applied to measure the temperature of one-level compression section and two-stage compression part, and the temperature information that obtains is fed back to Computer Control Unit.
Gas to be measured is treated that testing temperature is laggard and is entered compressor one-level compression section through being preheating to from Detonation Tube, gaseous tension after the compression enters the two-stage compression part after 1 grade of oil pressure gauge and 1 grade of rain glass detection, gas behind the two-stage compression enters autoclave after 2 grades of oil pressure gauges and 2 grades of rain glasss detections, close compressor and autoclave air intake valve after pressure rises to testing pressure in the autoclave, the temperature of autoclave is recorded by thermometer, and pressure is recorded by tensimeter.
Preferably, be provided with rupture disk at the escape pipe of described one-level compression section and the escape pipe of described two-stage compression part, after pressure sensibility gas generation decomposition explosion superpressure, can in time pressure releasing be fallen, prevent that superpressure from causing damage to instrument.
Further, described compressor only is made of above-mentioned parts.
The test pressure scope of described pressure sensibility explosion testing device is normal pressure ~ 3MPa, and Range of measuring temp is normal temperature ~ 200 ℃.
The present invention also provides a kind of pressure sensibility gas has been carried out the pressure sensibility explosion testing device, and it comprises:
Compressor, Detonation Tube, autoclave, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit;
Described Detonation Tube is used for pressure sensibility gas is carried out preheating, obtains needed temperature under the high temperature and high pressure condition condition;
Described temperature-detecting device is positioned on the described Detonation Tube, for detection of the temperature of carrying out the preheating of pressure sensibility gas in the Detonation Tube, and temperature feedback to Computer Control Unit, according to the Computer Control Unit feedack, is controlled the preheat temperature in the Detonation Tube;
Described Detonation Tube is connected by pipeline with described compressor, and the pressure sensibility gas of process Detonation Tube preheating enters into described compressor;
The pipeline that is connected between described Detonation Tube and described vacuum pump is equipped with companion's heat, its Temperature Setting is identical with Temperature Setting on the described Detonation Tube, it is the temperature to be tested of gas, be used for making described pressure sensibility gas to keep constant in the temperature of whole test period and test link, to record accurately the emergent pressure of gas under this temperature;
Described compressor is used for pressure sensibility gas is compressed, thereby measures pressure sensibility gas issues solution explosion time estranged in the condition that does not have oxygen to participate in emergent pressure;
Described pressure-detecting device is positioned on the described compressor, be used for detecting in real time the pressure of compressor, and information fed back to Computer Control Unit, according to the Computer Control Unit feedack, the control compressor to the compression that is positioned at pressure sensibility gas wherein with stop;
Described compressor mainly comprises cylinder and pushing piston, by the propelling of piston being realized the compression of pressure sensibility gas volume, thereby improve the pressure of compressor, monitor at any time compressor temperature and pressure signal in the compressor pressure elevation process, when pressure signal raises suddenly, illustrate that decomposition has occured pressure sensibility gas, has produced blast;
The cylinder skin of described compressor has chuck, carries out temperature control by conduction oil;
Described compressor comprises one-level compression section and two-stage compression part, partly carry out two-stage compression by one-level compression section and two-stage compression, the one-level compression section makes the pressure of described compressor rise to 0.5MPa by normal pressure, the pressure that two-stage compression partly makes described compressor by the promotion of 0.5MPa to 3MPa;
4 tensimeters and 2 temperature sensors are arranged on the described compressor, four tensimeters are respectively 1 grade of oil pressure gauges, 1 grade of rain glass and 2 grades of oil pressure gauges, 2 grades of rain glasss, what oil pressure gauge showed is the pressure of compressor oil, what rain glass showed is current gaseous tension to be compressed, oil pressure gauge and rain glass feed back to Computer Control Unit with the pressure information that obtains, 1 grade of oil pressure gauge and 1 grade of rain glass are positioned on the one-level compression section of described compressor, 2 grades of oil pressure gauges and 2 grades of rain glasss are positioned on the two-stage compression part of described compressor, 2 temperature sensors lay respectively at one-level compression section and the two-stage compression part of described compressor, be respectively applied to measure the temperature of one-level compression section and two-stage compression part, and the temperature information that obtains is fed back to Computer Control Unit;
Described autoclave is connected with described compressor, through compressor compresses but the pressure sensibility gas that does not record critical decomposition pressure enters into autoclave investigates the stability of this class pressure sensibility gas under long-time high-temperature and high-pressure conditions (being working condition);
Described pressure-detecting device and described temperature-detecting device also are installed on described autoclave;
Described vacuum pump is connected with described autoclave, is used for described compressor, Detonation Tube and autoclave are vacuumized;
Described chromatograph is connected with described autoclave with described compressor, when the pressure sensibility gas in the described compressor of detection, whether decompose for detection of the pressure sensibility gas after stopping to compress in the described compressor, thereby judge whether to arrive emergent pressure, when the pressure sensibility gas in the described autoclave of detection, for detection of the stability of this class pressure sensibility gas under long-time high-temperature and high-pressure conditions (being working condition);
Described Computer Control Unit is used for the temperature of the described Detonation Tube of Real Time Monitoring and the compressed pressure that produces of described pressure sensibility gas in the described compressor.
Described pressure-detecting device is positioned on the cylinder of described compressor, it can be pressure transducer, pressure transducer connects Computer Control Unit, by the pressure information on the Real-time Feedback compressor, thereby record pressure curve at Computer Control Unit, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, chromatograph instrument gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrates that if gas composition does not change decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure.
Further, described pressure sensibility explosion testing device preferably only is made of above-mentioned parts.
The test pressure scope of described pressure sensibility explosion testing device is normal pressure ~ 3MPa, and Range of measuring temp is normal temperature ~ 200 ℃.
The present invention also provides the method that adopts above-mentioned pressure sensibility explosion testing device test pressure sensibility gas to be issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, and it comprises:
The first step vacuumizes;
Second step is to pressure sensibility gas preheating to be tested;
In the 3rd step, to pressure sensibility gas compression to be tested, measure it issues solution blast estranged in the condition that does not have oxygen to participate in emergent pressure scope.
The described first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before further being specially the experiment beginning, then vacuumizes for subsequent use with vacuum pump.
Described second step further is specially pressure sensibility gas to be tested sent into and carries out preheating in the Detonation Tube, obtain needed temperature under the high temperature and high pressure condition condition, preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line, needed temperature range is normal temperature ~ 200 ℃.
Described the 3rd step further is specially described pressure sensibility gas to be tested and carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrate that decomposition explosion does not occur gas if gas composition does not change, continue pressure gas until find critical decomposition pressure.
Described method of testing further comprised for the 4th step, for the transient pressure susceptibility gas that does not record critical decomposition pressure, after it is compressed by described compressor, the autoclave that passes into after vacuumizing is airtight, autoclave temp is set identical with working temperature, gas at set intervals gas phase of chromatograph instrument forms, and judges that gas decomposes situation.
The present invention also provides the method that adopts above-mentioned pressure sensibility explosion testing device test pressure sensibility gas to be issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, and it comprises:
The first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before the experiment beginning, then vacuumizes for subsequent use with vacuum pump;
Second step, pressure sensibility gas to be tested sent into carry out preheating in the Detonation Tube, obtain needed temperature under the high temperature and high pressure condition condition, preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line, needed temperature range is normal temperature ~ 200 ℃;
The 3rd step, described pressure sensibility gas to be tested carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrates that if gas composition does not change decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure;
The 4th step, for the transient pressure susceptibility gas that does not record critical decomposition pressure, after it is compressed by described compressor, the autoclave that passes into after vacuumizing is airtight, autoclave temp is set identical with working temperature, gas at set intervals gas phase of chromatograph instrument forms, and judges that gas decomposes situation.
The present invention also provides above-mentioned pressure sensibility explosion testing device and has adopted this device to test pressure sensibility gas to be issued the application of method in the petrochemical complex safety in production of the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in.
Describe embodiments of the present invention in detail below with reference to embodiment, how the application technology means solve technical matters to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.
As shown in Figure 2, Detonation Tube comprises with lower member: vacuum pump 1A, surge tank 2A, vacuum pump ball valve 3A, needle-valve 4A, retaining valve 5A, sample introduction needle-valve 6A, detonation body 7A, view window 8A, attemperating unit 9A, circulating fan 10A, tail gas discharging pipe 11A, digital pressure gauge 12A, compressor inlet needle-valve 13A, safety valve 14A, each parts connects as shown in Figure 2.
As shown in Figure 1, of the present invention pressure sensibility gas is carried out the pressure sensibility explosion testing device, it comprises: compressor 10, Detonation Tube, autoclave 5, vacuum pump 8, chromatograph and Computer Control Unit 9, have attemperating unit 9A at described Detonation Tube and be used for the temperature that the control Detonation Tube carries out pressure sensibility gas, and temperature signal is fed back to Computer Control Unit 9, according to the Computer Control Unit feedack, preheat temperature in the control Detonation Tube, Detonation Tube and compressor 10 are connected by pipeline, pressure sensibility gas through the Detonation Tube preheating enters into compressor 10, the pipeline that is connected between described Detonation Tube and described vacuum pump 8 is equipped with companion's heat, its Temperature Setting is identical with Temperature Setting on the described Detonation Tube, it is the temperature to be tested of gas, be used for making described pressure sensibility gas to keep constant in the temperature of whole test period and test link, to record accurately the emergent pressure of gas under this temperature, described compressor comprises one-level compression section 1 and two-stage compression part 2, has retaining valve at one-level compression section 1, has retaining valve in two-stage compression part 2, carry out two-stage compression by one-level compression section 1 and two-stage compression part 2, one-level compression section 1 makes the pressure of described compressor rise to 0.5MPa by normal pressure, the compression pressure that two-stage compression part 2 makes described compressor by the promotion of 0.5MPa to 3MPa, 4 tensimeters and 2 temperature sensors are arranged on the described compressor, four tensimeters are respectively 1 grade of oil pressure gauges 13,1 grade of rain glass 3 and 2 grades of oil pressure gauges 14,2 grades of rain glasss 4, what oil pressure gauge showed is the pressure of compressor oil, what rain glass showed is current gaseous tension to be compressed, oil pressure gauge and rain glass feed back to Computer Control Unit with the pressure information that obtains, 1 grade of oil pressure gauge 13 and 1 grade of rain glass 3 are positioned on the one-level compression section 1 of described compressor, 2 grades of oil pressure gauges 14 and 2 grades of rain glasss 4 are positioned on the two-stage compression part 2 of described compressor, 1 grade of temperature sensor 11 of 2 temperature sensors and 2 grades of temperature sensors 12 lay respectively at one-level compression section 1 and the two-stage compression part 2 of described compressor, be respectively applied to measure the temperature of one-level compression section 1 and two-stage compression part 2, and the temperature information that obtains fed back to Computer Control Unit 9, be provided with rupture disk 15 at the escape pipe of described one-level compression section 1 and the escape pipe of described two-stage compression part 2, described compressor 10 mainly comprises cylinder and pushing piston, by the propelling of piston being realized the compression of pressure sensibility gas volume, thereby improve the pressure of compressor, monitor at any time compressor temperature and pressure signal in the compressor pressure elevation process, when pressure signal raises suddenly, illustrate that decomposition has occured pressure sensibility gas, produced blast, the cylinder skin of described compressor 10 has chuck, carry out temperature control by conduction oil, described autoclave 5 is connected with described compressor 10, through compressor 10 compression but the pressure sensibility gas that does not record critical decomposition pressure enters into autoclave 5 investigates the stability of these class pressure sensibility gases under long-time high-temperature and high-pressure conditions (being working condition), at described autoclave tensimeter 6 and thermometer 7 are installed, described vacuum pump 8 is connected with described autoclave 5, be used for described compressor 10, Detonation Tube and autoclave 5 vacuumize, described chromatograph is connected with described autoclave with described compressor, when the pressure sensibility gas in the described compressor of detection, whether decompose for detection of the pressure sensibility gas after stopping to compress in the described compressor, thereby judge whether to arrive emergent pressure, when the pressure sensibility gas in the described autoclave of detection, for detection of the stability of this class pressure sensibility gas under long-time high-temperature and high-pressure conditions (being working condition), described Computer Control Unit 9 is used for the temperature of the described Detonation Tube of Real Time Monitoring and the compressed pressure that produces of described pressure sensibility gas in the described compressor, the test pressure scope of this pressure sensibility explosion testing device is normal pressure ~ 3MPa, and Range of measuring temp is normal temperature ~ 200 ℃.
Adopt the present invention's pressure sensibility explosion testing device shown in Figure 1 pressure sensibility gas to be issued the method for the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, before the experiment beginning at first with nitrogen to described Detonation Tube, described compressor 10 and described autoclave 5 wash, then vacuumize for subsequent use with vacuum pump 8, pressure sensibility gas to be tested sent into carry out preheating in the Detonation Tube, preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor 10 by connecting line, described pressure sensibility gas to be tested carries out two stages of compression in described compressor, first the pressure in the described compressor is risen to 0.5MPa through one-level compression section 1 by normal pressure, rising to 3MPa through two-stage compression part 2 by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit 9 in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, if not changing, gas composition illustrates that decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure, for the transient pressure susceptibility gas that does not record critical decomposition pressure, after it is compressed by described compressor 10, the autoclave 5 that passes into after vacuumizing is airtight, autoclave temp is set identical with working temperature, gas forms every gas phase of 8 hours chromatograph instrument, judges that gas decomposes situation.
Example: test methyl nitrite at 80 ℃, the stability under the pressure 2MPa condition.
Changing 15 rupture disks before the experiment beginning is the rupture disk of 2MPa, in case the methyl nitrite decomposition pressure surpasses 2MPa then rupture disk breaks in the compression process, methyl nitrite gas is discharged outdoor by rupture disk.
Vacuumize with Detonation Tube vacuum pump 1A and 8 pairs of devices of compressor vacuum pump before the experiment beginning.
With methyl nitrite steel cylinder access Detonation Tube air inlet gas cylinder mouth, methyl nitrite gas is by the 4A needle-valve, and 5A retaining valve and 6A needle-valve enter Detonation Tube, and pressure value is by the demonstration of 12A tensimeter, and pouring inferior ester gaseous tension is normal pressure.
Close the 6A needle-valve, 9A to 80 ℃ in opening temp. control device is opened the 10A circulating fan, prepares open 13A at 80 ℃ after one hour until temperature stabilization and advances compressor valve.
Open Detonation Tube and compressor pipeline companion heat to 80 ℃, open compressor jacket temperature to 80 ℃, prepare behind the temperature stabilization to compress.
Open compressor, open 13A and advance compressor valve, methyl nitrite gas enters 10 compressors from Detonation Tube, after the compression of 1 compressor one-level, enter 2 compressor two-stage compressions, compressor I and II compression chamber temperature is recorded on computers by 11 temperature sensors, 12 temperature sensors, and pressure by 3 tensimeters, 4 tensimeters record on computers after the compression of compressor I and II.
The Real Time Observation pressure curve changes, and close compressor when autoclave pressure is 2MPa is opened gas chromatography the gas sample is analyzed.Methyl nitrite does not decompose under the pressure 2MPa condition at 80 ℃ as can be known by analysis.
Gas phase of per 8 hours chromatographs of methyl nitrite gas in the autoclave is formed, judge that gas decomposes situation, draws the resolving time.
This intellecture property of primary enforcement that all are above-mentioned is not set restriction this new product of other forms of enforcement and/or new method.Those skilled in the art will utilize this important information, and foregoing is revised, to realize similar implementation status.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (10)
1. a method that adopts the test of pressure sensibility explosion testing device pressure sensibility gas to be issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in is characterized in that, comprising:
The first step vacuumizes;
Second step is to pressure sensibility gas preheating to be tested;
In the 3rd step, to pressure sensibility gas compression to be tested, measure it issues solution blast estranged in the condition that does not have oxygen to participate in emergent pressure scope;
Described pressure sensibility explosion testing device comprises compressor, Detonation Tube, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit, described temperature-detecting device is positioned on the described Detonation Tube, described Detonation Tube is connected by pipeline with described compressor, described pressure-detecting device is positioned on the described compressor, described vacuum pump is connected with described compressor, and described chromatograph also is connected with described compressor.
2. the method for claim 1 is characterized in that: the described first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before further being specially the experiment beginning, then vacuumizes for subsequent use with vacuum pump.
3. the method for claim 1, it is characterized in that: described second step further is specially pressure sensibility gas to be tested sent into and carries out preheating in the Detonation Tube, obtain needed temperature under the high temperature and high pressure condition condition, preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line.
4. the method for claim 1, it is characterized in that: described the 3rd step further is specially described pressure sensibility gas to be tested and carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrate that decomposition explosion does not occur gas if gas composition does not change, continue pressure gas until find critical decomposition pressure.
5. one kind is adopted the pressure sensibility explosion testing device to test the method that pressure sensibility gas is issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, described pressure sensibility explosion testing device comprises compressor, Detonation Tube, autoclave, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit, described temperature-detecting device is positioned on the described Detonation Tube, described Detonation Tube is connected by pipeline with described compressor, described pressure-detecting device is positioned on the described compressor, described autoclave is connected with described compressor, described vacuum pump is connected with described autoclave, described chromatograph is connected with described autoclave with described compressor, it is characterized in that, described method comprises:
The first step vacuumizes;
Second step is to pressure sensibility gas preheating to be tested;
In the 3rd step, to pressure sensibility gas compression to be tested, measure it issues solution blast estranged in the condition that does not have oxygen to participate in emergent pressure scope;
The 4th step, for the transient pressure susceptibility gas that does not record critical decomposition pressure, after it is compressed by described compressor, the autoclave that passes into after vacuumizing is airtight, autoclave temp is set identical with working temperature, gas at set intervals gas phase of chromatograph instrument forms, and judges that gas decomposes situation.
6. method as claimed in claim 5 is characterized in that: the described first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before further being specially the experiment beginning, then vacuumizes for subsequent use with vacuum pump.
7. method as claimed in claim 5, it is characterized in that: described second step further is specially pressure sensibility gas to be tested sent into and carries out preheating in the Detonation Tube, obtain needed temperature under the high temperature and high pressure condition condition, preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line.
8. method as claimed in claim 5, it is characterized in that: described the 3rd step further is specially described pressure sensibility gas to be tested and carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrate that decomposition explosion does not occur gas if gas composition does not change, continue pressure gas until find critical decomposition pressure.
9. one kind is adopted the pressure sensibility explosion testing device to test the method that pressure sensibility gas is issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in, described pressure sensibility explosion testing device comprises compressor, Detonation Tube, autoclave, pressure-detecting device, temperature-detecting device, vacuum pump, chromatograph and Computer Control Unit, described temperature-detecting device is positioned on the described Detonation Tube, described Detonation Tube is connected by pipeline with described compressor, described pressure-detecting device is positioned on the described compressor, described autoclave is connected with described compressor, described vacuum pump is connected with described autoclave, described chromatograph is connected with described autoclave with described compressor, it is characterized in that, described method comprises:
The first step is at first washed described Detonation Tube, described compressor and described autoclave with nitrogen before the experiment beginning, then vacuumizes for subsequent use with vacuum pump;
Second step is sent into pressure sensibility gas to be tested and is carried out preheating in the Detonation Tube, and preheated pressure sensibility gas to be tested enters into the air intake opening of described compressor by connecting line;
The 3rd step, described pressure sensibility gas to be tested carries out two stages of compression in described compressor, compression rises to 0.5MPa by normal pressure through one-level with the pressure in the described compressor first, rising to 3MPa through two-stage compression by 0.5MPa, opening pressure record during gas compression, pressure data is presented on the Computer Control Unit in real time, the pressure curve slope is 0 if gas does not react under the set pressure condition, the pressure curve slope can change to some extent if decomposition reaction has occured gas, recording curve flex point pressure, stop pressure gas, the chromatograph gas phase forms, judge whether this force value is the critical decomposition pressure of this gas, illustrates that if gas composition does not change decomposition explosion does not occur gas, continue pressure gas until find critical decomposition pressure;
The 4th step, for the transient pressure susceptibility gas that does not record critical decomposition pressure, after it is compressed by described compressor, the autoclave that passes into after vacuumizing is airtight, autoclave temp is set identical with working temperature, gas at set intervals gas phase of chromatograph instrument forms, and judges that gas decomposes situation.
10. the described application of method in the petrochemical complex safety in production that pressure sensibility gas is issued the emergent pressure scope of solution blast estranged in the condition that does not have oxygen to participate in of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210406009.3A CN103076363B (en) | 2012-10-23 | 2012-10-23 | Method for determining critical pressure range for explosive decomposition of pressure sensitive gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210406009.3A CN103076363B (en) | 2012-10-23 | 2012-10-23 | Method for determining critical pressure range for explosive decomposition of pressure sensitive gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103076363A true CN103076363A (en) | 2013-05-01 |
| CN103076363B CN103076363B (en) | 2015-02-18 |
Family
ID=48152965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210406009.3A Active CN103076363B (en) | 2012-10-23 | 2012-10-23 | Method for determining critical pressure range for explosive decomposition of pressure sensitive gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103076363B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604831A (en) * | 2013-10-17 | 2014-02-26 | 中国石油化工股份有限公司 | Method for testing whether a chemical product has an explosion diffusing capability |
| CN104914132A (en) * | 2015-05-27 | 2015-09-16 | 中国石油化工股份有限公司 | Apparatus for testing safe critical partial pressure of easily decomposed gas |
| CN104931529A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test method of safe critical partial pressure of vinyl acetylene gas |
| CN104931672A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test method of safe critical partial pressure of methylacetylene gas |
| CN104931530A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test method of safe critical partial pressure of easily-decomposable gas |
| CN110634534A (en) * | 2018-06-06 | 2019-12-31 | 中国石油化工股份有限公司 | Chemical process parameter sensitivity determination method based on extended Fourier amplitude analysis |
| CN112326733A (en) * | 2020-10-27 | 2021-02-05 | 南京森峰科技有限公司 | Detection method for spontaneous decomposition explosion risk of combustible gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140004A (en) * | 1977-11-09 | 1979-02-20 | Stauffer Chemical Company | Apparatus for determining the explosion limits of a flammable gas |
| CN2765187Y (en) * | 2005-01-28 | 2006-03-15 | 黄晓东 | A device for testing flame resistance performance of obstructing and flameproof materials |
| CN101995449A (en) * | 2009-08-21 | 2011-03-30 | 中国石油化工股份有限公司 | Acetylene gas pressure sensitivity explosion testing device |
-
2012
- 2012-10-23 CN CN201210406009.3A patent/CN103076363B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140004A (en) * | 1977-11-09 | 1979-02-20 | Stauffer Chemical Company | Apparatus for determining the explosion limits of a flammable gas |
| CN2765187Y (en) * | 2005-01-28 | 2006-03-15 | 黄晓东 | A device for testing flame resistance performance of obstructing and flameproof materials |
| CN101995449A (en) * | 2009-08-21 | 2011-03-30 | 中国石油化工股份有限公司 | Acetylene gas pressure sensitivity explosion testing device |
Non-Patent Citations (1)
| Title |
|---|
| 堀口贞兹等: "锗烷的分解爆炸——爆炸火焰的传播及爆炸极限压力", 《低温与特气》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604831A (en) * | 2013-10-17 | 2014-02-26 | 中国石油化工股份有限公司 | Method for testing whether a chemical product has an explosion diffusing capability |
| CN103604831B (en) * | 2013-10-17 | 2016-09-14 | 中国石油化工股份有限公司青岛安全工程研究院 | Whether chemical products possess the method for testing propagating explosions |
| CN104914132A (en) * | 2015-05-27 | 2015-09-16 | 中国石油化工股份有限公司 | Apparatus for testing safe critical partial pressure of easily decomposed gas |
| CN104931529A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test method of safe critical partial pressure of vinyl acetylene gas |
| CN104931672A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test method of safe critical partial pressure of methylacetylene gas |
| CN104931530A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test method of safe critical partial pressure of easily-decomposable gas |
| CN110634534A (en) * | 2018-06-06 | 2019-12-31 | 中国石油化工股份有限公司 | Chemical process parameter sensitivity determination method based on extended Fourier amplitude analysis |
| CN112326733A (en) * | 2020-10-27 | 2021-02-05 | 南京森峰科技有限公司 | Detection method for spontaneous decomposition explosion risk of combustible gas |
| CN112326733B (en) * | 2020-10-27 | 2023-11-14 | 南京森峰科技有限公司 | Method for detecting spontaneous decomposition explosion risk of combustible gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103076363B (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103076363B (en) | Method for determining critical pressure range for explosive decomposition of pressure sensitive gas | |
| CN102937605B (en) | Pressure-sensitive explosion test device | |
| Yang et al. | Experimental research into the relationship between initial gas release and coal-gas outbursts | |
| CN104749218B (en) | Flammable gas explosion characteristic test device and method under ultralow temperature | |
| CN204832085U (en) | Height warm purgation combustible gas explosion characteristic testing experiment device | |
| Zlochower et al. | The limiting oxygen concentration and flammability limits of gases and gas mixtures | |
| CN107209164B (en) | Method for calculating methane value and apparatus for measuring methane value | |
| US20210025801A1 (en) | Experimental Device for Measuring Diffusion Coefficient of Natural Gas | |
| CN205679389U (en) | Fuel nozzle performance test device | |
| CN104181199A (en) | Ignition energy variable completely-transparent pipeline gas explosion experiment platform and method | |
| CN210442338U (en) | Hydrogen detector testing arrangement | |
| CN104390798B (en) | A kind of explosion testing device and method for detecting antiknock device explosion insulation performance | |
| CN103439360A (en) | Solid propellant multi-thermocouple dynamic combustion performance testing system and method | |
| CN107014864A (en) | Hot loose coal body induces flammable explosion hazard gases blast coupling test device and method | |
| CN105588780A (en) | Fire extinguishing agent inerting resisting property testing system and testing method thereof | |
| CN103383302A (en) | Online testing and adjusting device for set pressure of direct-operated relief valve | |
| CN102998390B (en) | Method for analyzing carbon monoxide gas in coal under anaerobic condition | |
| CN104897723A (en) | Experiment device for spontaneous combustion characteristic test during coal rock creep process | |
| CN105973712A (en) | Acoustic emission testing device used in gassy coal rock fracturing process | |
| CN110779966B (en) | Light gas alarm characteristic gas detection method and device | |
| CN102944482A (en) | High-temperature high-pressure wedge-shaped expansion load presplitting grain stress corrosion test device | |
| CN108088964A (en) | Noble gas dynamic replaces the test method of coal body ADSORPTION STATE oxygen | |
| CN105259328A (en) | Physical simulation test device for influence of hydraulic measures on coal gas seepage characteristics | |
| CN102053037A (en) | Multi-axial extensograph and using method thereof | |
| CN202204808U (en) | Solid coupling parameter tester for coal gas containing mashgas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |