CN205038183U - Liquid self -ignition point survey device - Google Patents
Liquid self -ignition point survey device Download PDFInfo
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- CN205038183U CN205038183U CN201520816242.8U CN201520816242U CN205038183U CN 205038183 U CN205038183 U CN 205038183U CN 201520816242 U CN201520816242 U CN 201520816242U CN 205038183 U CN205038183 U CN 205038183U
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Abstract
The utility model relates to a liquid self -ignition point survey device, it includes control system, execution systems and display, control system connects execution systems with the display, execution systems is by control system direct control, the display is used for the data that display control system reacts. The utility model discloses can realize that automatic test directly obtains final self -ignition point, need not manual operation, improve the accuracy of test, guarantee operating personnel's safety, improve efficiency of software testing greatly.
Description
Technical field
The utility model relates to a kind of liquid spontaneous ignition temperature determinator, mainly through the spontaneous ignition temperature of determinator determination testing liquid, is applicable to heat transfer oil, steam turbine oil and transformer wet goods liquid petroleum and petrochemicals etc.
Background technology
Spontaneous ignition temperature refers to that material under atmospheric pressure, and not by the minimum temperature of extra power as spark or flame generation spontaneous combustion, standard GB/T 5332--85 defines the assay method of flammable liquid and gas ignition temperature (spontaneous ignition temperature).Spontaneous ignition temperature be judge, evaluate combustible fire risk one of important indicator, spontaneous ignition temperature is lower, and the danger of combustible generation freely burning fire is larger.When tradition spontaneous ignition temperature tester is tested, utilize syringe to drip oil product sample in flask, observing oil sample combustion case by reflective mirror, then proving oil sample generation spontaneous combustion as observed flame, then need to reduce attemperating unit temperature, again drip oil sample and test; If do not observe flame, prove spontaneous combustion not to occur, then need to raise attemperating unit temperature, repeatedly adjust temperature, until determine the minimum temperature that spontaneous combustion occurs, the spontaneous ignition temperature of this temperature and oil sample to be measured.After each dropping oil sample finishes test, all need craft hair-dryer to be dispelled by the flue gas in flask, manual air blowing is wasted time and energy, and the harmful smoke that oil sample burning produces easily is drawn in health by operating personnel, damages health; Secondly, traditional test needs operating personnel's moment to observe flask interior combustion case by reflective mirror, and what produce flame is not easy in a flash seizure, improves the difficulty of test; In addition, during artificial dropping oil sample, be not easy to control to drip dosage just the same at every turn, make test occur error.
Utility model content
The utility model provides a kind of liquid spontaneous ignition temperature determinator, achieves automatic dripping oil sample, automatically controls attemperating unit temperature, automatically gathers flare point, certainly moves wind, improve the accuracy of spontaneous ignition temperature test, improve testing efficiency in its test process.
The technical scheme that the utility model adopts is:
A kind of liquid spontaneous ignition temperature determinator, comprise control system, executive system and display, described control system connects described executive system and described display, described executive system is directly controlled by control system, described display is used for the data that display control program reacts, described executive system comprises proving installation, for oil sample to be measured to be dropped to dripping sampling device and will can test the evacuator terminating rear produced a large amount of flue gases and carry out changing in flask at every turn, described proving installation comprises heating furnace, temperature-control heat couple, induction heat galvanic couple and photo-sensitive cell, furnace chamber is provided with in described heating furnace, can test flask be held and keep flask temperature constant in a certain numerical value, described temperature-control heat couple to be arranged in furnace chamber and to be centered around the outside of test flask, described photo-sensitive cell and induction heat galvanic couple are arranged on the outside of flask, for collecting information in flask test process.
Preferably, described induction heat galvanic couple is arranged on the bottom of flask outside, middle part and neck 3 place, is used for detecting flask interior temperature, and Real-time Feedback is to control system and show over the display.
Preferably, described sampling device comprises micromachine and syringe, described micromachine output terminal connects the roll booster handle on syringe, the transverse movement of roll booster handle can be driven, the endpiece of described syringe connects dropper, described dropper end inserts in flask, and the running of described micromachine is controlled by control system.
Preferably, described evacuator comprises vacuum pump, described vacuum pump one end connected sucking pipe, and described pipette tip inserts drag, and startup and the closedown of described vacuum pump control by control system.
Preferably, described furnace chamber is cylindrical.
Preferably, described display is LCDs.
Control system of the present utility model can control micromachine running automatically, the transverse movement of minitype motor driving roll booster handle, oil sample to be measured drops in flask by roll booster handle pushing syringe, automatic dripping oil sample can guarantee that each oil sample dosage dripped is consistent, and can ensure, on the same position that oil sample is added dropwise in flask, to improve repeatability and the accuracy of test; Control system of the present utility model controls furnace temp, the cylindrical cavity of heating furnace can hold test flask and keep flask temperature constant in a certain numerical value, maximum temperature can reach 600 DEG C, the outside induction heat galvanic couple of the bottom of flask, middle part and neck 3 detects flask interior temperature, be presented in real time in LCDs, control furnace temp can realize flask interior temperature and make corresponding action (raised temperature or reduction temperature) according to testing requirement automatically; Flask outer setting photo-sensitive cell, by photosensitive electrical resistance collection flame information, inside heating furnace is once there be flame to produce, the photosensitive resistance conducting of photo-sensitive cell inside, is delivered to control system by signal, just can collects flame information, do not have flame to produce and then do not have information output, need continue adjustment furnace temp again to test, it can produce a large amount of flue gas after testing at every turn and terminating, and needs to take a breath before flask drips oil sample.
Again before test, control system makes vacuum pump automatically open, and utilize vacuum pump to pass into the flue gas sucking-off of suction pipe by flask interior of drag, fresh air outside can mend flask interior, to meet the oil sample next time of reaction smoothly, improves the continuity of device.
Whole test process all controls automatically by control system, realize automatically repeatedly dripping oil sample, automatically adjust furnace temp, automatically gather flare up fire, automatic air-exchanging etc., LCDs can show inside heating furnace temperature in real time, and the spontaneous ignition temperature obtained by final test is presented on screen.
Compared with prior art, advantage of the present utility model and good effect are:
The utility model can realize automatic test job and directly obtain final spontaneous ignition temperature, without the need to manual operation, improves the accuracy of test, ensure that the safety of operating personnel, substantially increase testing efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the logical diagram of the utility model liquid spontaneous ignition temperature determinator;
Fig. 2 is the structural representation of the utility model liquid spontaneous ignition temperature determinator.
In figure, 1. heating furnace, 2. furnace chamber, 3. temperature-control heat couple, 4. flask, 5. induction heat galvanic couple, 6. photo-sensitive cell, 7. vacuum pump, 8. syringe, 9. micromachine, 10. control system, 11. LCDs.
Embodiment
Embodiment
As shown in Figure 1, a kind of liquid spontaneous ignition temperature determinator, comprise control system (10), executive system and display, described control system (10) connects described executive system and described display, described executive system is directly controlled by control system (10), described display is used for the data that display control program reacts, described display is LCDs (11), described executive system comprises proving installation, for oil sample to be measured to be dropped to dripping sampling device and will can test the evacuator terminating rear produced a large amount of flue gases and carry out changing in flask (4) at every turn, described proving installation comprises heating furnace (1), temperature-control heat couple (3), induction heat galvanic couple (5) and photo-sensitive cell (6), cylindrical furnace chamber (2) is provided with in described heating furnace (1), can test flask be held and keep flask temperature constant in a certain numerical value, described temperature-control heat couple to be arranged in furnace chamber (2) and to be centered around the outside of test flask (4), described photo-sensitive cell (6) and induction heat galvanic couple (5) are arranged on the outside of flask (4), described induction heat galvanic couple (5) is arranged on the outside bottom of flask (4), middle part and neck 3 place, be used for detecting flask interior temperature, Real-time Feedback is to control system (10) and in the upper display of LCDs (11).
Described sampling device comprises micromachine (9) and syringe (8), described micromachine (9) output terminal connects the roll booster handle on syringe (8), the transverse movement of roll booster handle can be driven, the endpiece of described syringe (8) connects dropper, described dropper end inserts in flask (4), and the running of described micromachine (9) is controlled by control system (10).
Described evacuator comprises vacuum pump (7), described vacuum pump (7) one end connected sucking pipe, described pipette tip inserts flask (4) bottom, and startup and the closedown of described vacuum pump (7) control by control system (10).
Main testing procedure of the present utility model is as follows: as 500mL flask (4) is installed on cylindrical furnace chamber (2) inwall of heating furnace (1) by Fig. 2, control system (10) is utilized to preset heating-up temperature, open heating furnace (1) and heat flask (4), flask interior temperature is detected by the induction heat galvanic couple (5) of the bottom of flask (4), middle part and neck, when flask (4) internal temperature reaches required temperature, control system (10) adjustment temperature-control heat couple (3) makes temperature keep stable.Control system (10) controls micromachine (9) running, and the transverse movement of driven by motor roll booster handle, 100 μ L oil samples drop in flask (4) and test by roll booster handle pushing syringe (8).If do not observe flame in 10min, think that oil sample to be measured spontaneous combustion does not occur at such a temperature, control system (10) controls vacuum pump (7) running, air inner for flask (4) is extracted out, it is inner that fresh air outside can mend flask (4), to meet the oil sample next time of reaction smoothly.Flask (4) internal temperature is raised 30 DEG C by temperature-control heat couple (3) by control system (10), if also produce without flame, continue flask (4) internal temperature to be raised 30 DEG C and continue test until produce flame, if there is flame to produce, the photosensitive resistance conducting that photo-sensitive cell (6) is inner, signal is delivered to control system, just can collects flame information.Flask (4) internal temperature is reduced temperature with the multiple interval of 3 DEG C by control system (10), and repeated test process, till there is not spontaneous combustion, is determined to catch fire and non-ignitable separation with the interval of 3 DEG C, obtain minimum catch fire stable.
Wherein, in test process, LCDs (11) can show the temperature of the bottom of flask (4), middle part and neck in real time, and the spontaneous ignition temperature obtained by final test is presented in LCDs (11).Whole test process all controls automatically by control system, realizes automatically repeatedly dripping oil sample, automatically adjusts furnace temp, automatically gathers flare up fire, automatic air-exchanging etc., substantially increase spontaneous ignition temperature testing efficiency, ensure that the safety of operating personnel.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to the technical solution of the utility model the apparent change of amplifying out or variation be still in the row of protection domain of the present utility model.
Claims (6)
1. a liquid spontaneous ignition temperature determinator, comprise control system, executive system and display, described control system connects described executive system and described display, described executive system is directly controlled by control system, described display is used for the data that display control program reacts, it is characterized in that: described executive system comprises proving installation, for oil sample to be measured to be dropped to dripping sampling device and will can test the evacuator terminating rear produced a large amount of flue gases and carry out changing in flask at every turn, described proving installation comprises heating furnace, temperature-control heat couple, induction heat galvanic couple and photo-sensitive cell, furnace chamber is provided with in described heating furnace, can test flask be held and keep flask temperature constant in a certain numerical value, described temperature-control heat couple to be arranged in furnace chamber and to be centered around the outside of test flask, described photo-sensitive cell and induction heat galvanic couple are arranged on the outside of flask, for collecting information in flask test process.
2. liquid spontaneous ignition temperature determinator according to claim 1, it is characterized in that: described induction heat galvanic couple is arranged on the bottom of flask outside, middle part and neck 3 place, be used for detecting flask interior temperature, Real-time Feedback also shows over the display to control system.
3. liquid spontaneous ignition temperature determinator according to claim 1, it is characterized in that: described sampling device comprises micromachine and syringe, described micromachine output terminal connects the roll booster handle on syringe, the transverse movement of roll booster handle can be driven, the endpiece of described syringe connects dropper, described dropper end inserts in flask, and the running of described micromachine is controlled by control system.
4. liquid spontaneous ignition temperature determinator according to claim 1, it is characterized in that: described evacuator comprises vacuum pump, described vacuum pump one end connected sucking pipe, described pipette tip inserts drag, and startup and the closedown of described vacuum pump control by control system.
5. the liquid spontaneous ignition temperature determinator according to claim 1-4 any one, is characterized in that: described furnace chamber is cylindrical.
6. the liquid spontaneous ignition temperature determinator according to claim 1-4 any one, is characterized in that: described display is LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520816242.8U CN205038183U (en) | 2015-10-20 | 2015-10-20 | Liquid self -ignition point survey device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520816242.8U CN205038183U (en) | 2015-10-20 | 2015-10-20 | Liquid self -ignition point survey device |
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| CN205038183U true CN205038183U (en) | 2016-02-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568774A (en) * | 2016-10-20 | 2017-04-19 | 国化低碳技术工程中心 | Selfignition liquid tester |
| CN108872303A (en) * | 2018-06-07 | 2018-11-23 | 广东工业大学 | A kind of spontaneous combustion curve detection system of self-heating substance |
| CN111781241A (en) * | 2019-04-04 | 2020-10-16 | 应急管理部化学品登记中心 | Liquid self-ignition point test sample injection device and application thereof |
| CN111796051A (en) * | 2020-07-10 | 2020-10-20 | 天津大学 | Flameless combustion spontaneous combustion temperature testing device, system and method |
-
2015
- 2015-10-20 CN CN201520816242.8U patent/CN205038183U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568774A (en) * | 2016-10-20 | 2017-04-19 | 国化低碳技术工程中心 | Selfignition liquid tester |
| CN108872303A (en) * | 2018-06-07 | 2018-11-23 | 广东工业大学 | A kind of spontaneous combustion curve detection system of self-heating substance |
| CN108872303B (en) * | 2018-06-07 | 2023-09-01 | 广东工业大学 | Spontaneous combustion curve detecting system of self-heating substance |
| CN111781241A (en) * | 2019-04-04 | 2020-10-16 | 应急管理部化学品登记中心 | Liquid self-ignition point test sample injection device and application thereof |
| CN111796051A (en) * | 2020-07-10 | 2020-10-20 | 天津大学 | Flameless combustion spontaneous combustion temperature testing device, system and method |
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