CN203949891U - Gas/liquid self-ignition temperature test macro - Google Patents
Gas/liquid self-ignition temperature test macro Download PDFInfo
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- CN203949891U CN203949891U CN201420369360.4U CN201420369360U CN203949891U CN 203949891 U CN203949891 U CN 203949891U CN 201420369360 U CN201420369360 U CN 201420369360U CN 203949891 U CN203949891 U CN 203949891U
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- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 9
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 239000000383 hazardous chemical Substances 0.000 abstract description 2
- 238000005304 joining Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 38
- 230000002269 spontaneous effect Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013098 chemical test method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000013056 hazardous product Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of gas/liquid self-ignition temperature test macro, it comprises sampling device and proving installation, and sampling device comprises sample chamber, and the sidepiece of sample chamber is provided with import, import is connected with the pipeline one that supplied gas/liquid passes through, and on pipeline one, is provided with by-pass valve control; The periphery of sample chamber is provided with heating jacket, the outer wall of sample chamber with closely paste on heating jacket; Sample chamber inner bottom part is provided with stirrer, for liquid is stirred; The top of sample chamber is provided with outlet, and outlet is connected in flask by pipeline two, and the part section on pipeline two is coated with heating jacket.Part section on the pipeline two that connects sample chamber and test flask is coated with heating jacket, there is condensation in order to prevent that sample from joining in the process of flask, the utility model completes the test to gas/liquid self-ignition temperature by the cooperation of sampling device and proving installation, for various hazardous chemicals provide certain reference frame in the application of chemical enterprise.
Description
Technical field
The utility model belongs to gas-liquid hazardous material detection technical field, is specifically related to a kind of test macro for detection of dangerous material gas/liquid self-ignition temperature.
Background technology
Self-ignition temperature is again point of ignition, or ignition temperature (Kindling point), refer to that combustible is not having under the effect of the open flame source such as flame, electric spark, because heat is emitted in the air oxidation of originally experiencing, or be subject to ambient temperature, humidity effect its temperature is raise and cause that the minimum temperature of burning is called spontaneous ignition temperature (or ignition temperature).
The self-ignition temperature of gas or liquid, as an important indicator weighing security in its production, use, storage and transportation, is even more important to the research of self-ignition temperature.For the test of self-ignition temperature, mainly contain ASTM E659 and the ASTMG72-G72M-2009 standard of the U.S. abroad, domestic also have GB/T21791-2008 and a GB/T21860-2008 standard, above-mentioned standard is mainly the self-ignition temperature test for liquid compound, lack method of testing and instrument and equipment for inflammable gas self-ignition temperature, carry out practical operation and also have inconvenience, manual operationss as a large amount of in needs, operating process danger, its self-ignition temperature tester is mainly to carry out sample introduction by syringe or funnel, but during for Liquid sample introduction, often because reducing, temperature in sample introduction process affects test result, and syringe or funnel sample introduction are not only loaded down with trivial details but also consuming time longer.Not only the utility model is gas/liquid self-ignition temperature proving installation, is that an Analysis of Nested Design is used for assessing gaseous combustible material and under atmospheric pressure occurs the special purpose device of self-ignition fatalness.
Utility model content
The problem existing in order to solve above-mentioned prior art, the utility model proposes a kind of gas/liquid self-ignition temperature test macro, can accurate evaluation gaseous combustible material under atmospheric pressure there is the danger of spontaneous combustion in the utility model system, its technical requirement aspect self-ignition temperature test reaches the requirement of " spontaneous ignition temperature of liquid chemical test method " in ASTM E659-2014.
One of the utility model task is to provide a kind of gas/liquid self-ignition temperature test macro, and its technical scheme comprises:
A kind of gas/liquid self-ignition temperature test macro, it comprises sampling device and proving installation, described proving installation comprises flask, heating furnace, temperature controller, temperature-control heat couple and registering instrument, described flask is positioned at the burner hearth of described heating furnace, described temperature-control heat couple is positioned at the middle part in described flask outside, middle and upper part and bottom, described temperature controller and registering instrument are for monitoring temperature and the data of described gas/liquid, described sampling device comprises sample chamber, described sample chamber is tank shape structure, the sidepiece of described sample chamber is provided with import, described import is connected with the pipeline one that supplied gas/liquid passes through, on described pipeline one, be provided with by-pass valve control, the periphery of described sample chamber is provided with heating jacket, the outer wall of described sample chamber with closely paste on described heating jacket, described sample chamber inner bottom part is provided with stirrer, for described liquid is stirred, the top of described sample chamber is provided with outlet, and described outlet is connected in described flask by pipeline two, and the part section on described pipeline two is coated with heating jacket.
As a preferred version of the present utility model, in above-mentioned sample chamber, vertically insert thermopair from the top of above-mentioned sample chamber, for monitoring the temperature of gas/liquid in sample chamber.
As another preferred version of the present utility model, on above-mentioned pipeline one, be provided with a gas exhaust duct, above-mentioned gas exhaust duct is provided with vent valve.
On above-mentioned pipeline two, start from the exit of sample chamber to being coated with heating jacket near heating furnace.
Above-mentioned pipeline two is provided with isolation valve and metering valve, and above-mentioned isolation valve is positioned at the side near above-mentioned sample chamber.
Above-mentioned sample chamber is connected with pressure transducer.
Two of the utility model task is to provide a kind of using method of gas/liquid self-ignition temperature test macro,
A using method for gas/liquid self-ignition temperature test macro, comprises the following steps:
1) adjust the temperature of flask interior in proving installation, maintain system balancing after making it reach preset temperature;
2) gas/liquid to be measured is joined in sample chamber, by the by-pass valve control control addition on pipeline one, heated sample chamber turn on agitator;
3) gas/liquid to be measured in sample chamber passes in flask by pipeline two, starts timing, monitoring.
The useful technique effect that the utility model brings:
The utility model proposes a kind of gas/liquid self-ignition temperature test macro, it comprises sampling device and proving installation, gas/liquid passes into from sampling device, through stirring, after heating, passing into proving installation tests, this sampling device is made up of with pasting at the heating jacket of sample chamber outer wall the sample chamber of tank shape, the sample chamber of tank shape structure can be for being that vapour mixture provides enough spaces for the gas/liquid of setup test, heating jacket connects temperature control system for extremely required temperature of heated sample chamber gases/vapors potpourri to be measured, part section on the pipeline two that connects sample chamber and test flask is coated with heating jacket, it is consistent with sample chamber to be that temperature in order to make pipeline two keeps, to reduce condensation in sample joins the process of flask, in sample chamber, vertically insert thermopair from the top of sample chamber, for monitoring the temperature of gas/liquid in sample chamber, the stirrer of bottom, sample chamber is for testing the potpourri of various ingredients, and stirrer can make gases/vapors mix, and reduces the phenomenon that sample there will be layering, the pressure transducer being connected with sample chamber is for controlling the gaseous mixture that enters sample chamber, and the pressure of simultaneously testing when sample is added to test flask changes.
The utility model completes the test to gas/liquid self-ignition temperature by the cooperation of sampling device and proving installation, for various hazardous chemicals provide certain reference frame in the application of chemical enterprise.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is done to further clear, complete explanation:
Fig. 1 is the structural representation of the utility model gas/liquid self-ignition temperature test macro;
In figure, 1, proving installation, 2, sample chamber, 3, heating jacket, 4, stirrer, 5, thermopair, 6, pipeline one, 7, pipeline two.
Embodiment
The utility model discloses a kind of gas/liquid self-ignition temperature test macro, in order to make advantage of the present utility model, technical scheme clearer, clear and definite, below in conjunction with specific embodiment, the utility model is done to further clear, complete explanation.
Shown in Fig. 1, the utility model, a kind of gas/liquid self-ignition temperature test macro, it comprises sampling device and proving installation 1, proving installation 1 is for the mensuration to gas/liquid, its structure similarly to the prior art, only do brief description at this, proving installation, it comprises flask, heating furnace, temperature controller, temperature-control heat couple and registering instrument, flask is positioned at the burner hearth of heating furnace, and temperature-control heat couple is positioned at middle part, middle and upper part and the bottom in flask outside, and temperature controller and registering instrument are for monitoring temperature and the data of described gas/liquid;
Sampling device comprises sample chamber 2, sample chamber is tank shape structure, the sample chamber of tank shape structure can provide sufficient space for gas-liquid or its potpourri, sidepiece in sample chamber 2 is provided with import, inflow point is connected with pipeline one, on pipeline one, is provided with by-pass valve control, and gas/liquid to be measured enters sample chamber by pipeline 1, on pipeline one, be provided with a gas exhaust duct, on a gas exhaust duct, be provided with vent valve; Top in sample chamber is connected with pressure transducer, and the number of gas/liquid intake to be measured is regulated by by-pass valve control, or the variation of the pressure arriving according to pressure sensor monitoring, determines the intake of sample chamber 2 interior gas/liquid to be measured; Be provided with heating jacket 3 in the periphery of sample chamber 2, heating jacket 3 closely pastes with the outer wall of sample chamber 2, and heating jacket can be connected to realize heating, the insulation object to sample chamber 2 with temperature-controlling system; Be provided with stirrer 4 at sample chamber inner bottom part, for liquid is stirred; The top of sample chamber 2 is provided with outlet, and outlet is connected in flask by pipeline 27, and the part section on described pipeline 27 is coated with heating jacket 3.
Thermopair is vertically inserted in top in above-mentioned sample chamber in sample chamber, for monitoring the temperature of gas/liquid in sample chamber.
Pipeline 27 is provided with isolation valve and metering valve, isolation valve is positioned at the side near described sample chamber, isolation valve is for Quality control supply and cut-out to test flask from sample chamber, and metering valve is used for being arranged between sample chamber and flask for reducing the anti-sample chamber that flows to of sample sample.
The using method of the utility model gas/liquid self-ignition temperature test macro, test according to the following step:
1) temperature control process, reaches after predetermined temperature in flask interior temperature, and the temperature controller of adjusting in proving installation makes temperature in the preferred range, maintains system balancing;
2) illumination, before sample is inserted, ambient light should be very dark; After sample is put into, then blackout;
3) add sample, gas/liquid to be measured is joined in sample chamber, heated sample chamber, opens the isolation valve between sample chamber and test flask, for example, to testing the sample that passes into 100mg in flask, 0.1psi; Actual sample size is relevant with the size of sample chamber, change and control the sample size joining in test flask by the pressure of sample chamber, assumes samples is the gas under perfect condition, and the volume of known sample chamber and temperature can go out the quality of sample by the pressure differential approximate treatment of test;
4) timing, sample is opened timer after passing into flask;
5) experimental observation, in dark surrounds, observes the situation in flask; If do not catch fire in 10 minutes, think that testing sample can not catch fire under this temperature conditions, use hot air gun that system is purged clean, stops and after 10 minutes, carry out next group and test; If caught fire in 10 minutes, record sample and be added to the time interval of catching fire as ignition delay time.After using hot air gun that system is purged and stopped, reduce test temperature and test again, until there is not spontaneous combustion.
From not there is not self-ignition temperature, 3 DEG C of every risings are carried out a test, during to system generation spontaneous combustion till, this temperature is the minimum temperature that spontaneous combustion occurs, use the utility model test macro in fuming cupboard, to test, exhaust system should be suitable for absorbing poisonous flue gas.
Claims (6)
1. a gas/liquid self-ignition temperature test macro, it comprises sampling device and proving installation, described proving installation comprises flask, heating furnace, temperature controller, temperature-control heat couple and registering instrument, described flask is positioned at the burner hearth of described heating furnace, described temperature-control heat couple is positioned at the middle part in described flask outside, middle and upper part and bottom, described temperature controller and registering instrument are for monitoring temperature and the data of described gas/liquid, it is characterized in that: described sampling device comprises sample chamber, described sample chamber is tank shape structure, the sidepiece of described sample chamber is provided with import, described import is connected with the pipeline one that supplied gas/liquid passes through, on described pipeline one, be provided with by-pass valve control, the periphery of described sample chamber is provided with heating jacket, the outer wall of described sample chamber with closely paste on described heating jacket, described sample chamber inner bottom part is provided with stirrer, for described liquid is stirred, the top of described sample chamber is provided with outlet, and described outlet is connected in described flask by pipeline two, and the part section on described pipeline two is coated with heating jacket.
2. gas/liquid self-ignition temperature test macro according to claim 1, is characterized in that: in described sample chamber, vertically insert thermopair from the top of described sample chamber, for monitoring the temperature of gas/liquid in sample chamber.
3. gas/liquid self-ignition temperature test macro according to claim 1, is characterized in that: on described pipeline one, be provided with a gas exhaust duct, described gas exhaust duct is provided with vent valve.
4. according to the gas/liquid self-ignition temperature test macro described in claim 2 or 3, it is characterized in that: on described pipeline two, start from the exit of described sample chamber to being coated with heating jacket near heating furnace.
5. gas/liquid self-ignition temperature test macro according to claim 4, is characterized in that: described pipeline two is provided with isolation valve and metering valve, and described isolation valve is positioned at the side near described sample chamber.
6. gas/liquid self-ignition temperature test macro according to claim 5, is characterized in that: described sample chamber is connected with pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369360.4U CN203949891U (en) | 2014-07-04 | 2014-07-04 | Gas/liquid self-ignition temperature test macro |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420369360.4U CN203949891U (en) | 2014-07-04 | 2014-07-04 | Gas/liquid self-ignition temperature test macro |
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| CN203949891U true CN203949891U (en) | 2014-11-19 |
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| CN201420369360.4U Expired - Lifetime CN203949891U (en) | 2014-07-04 | 2014-07-04 | Gas/liquid self-ignition temperature test macro |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132957A (en) * | 2014-07-04 | 2014-11-05 | 中国石油化工股份有限公司 | Gas/liquid auto-ignition temperature testing system |
-
2014
- 2014-07-04 CN CN201420369360.4U patent/CN203949891U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132957A (en) * | 2014-07-04 | 2014-11-05 | 中国石油化工股份有限公司 | Gas/liquid auto-ignition temperature testing system |
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