CN106483164A - For testing test system and the method for oil sample close flash point - Google Patents

For testing test system and the method for oil sample close flash point Download PDF

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Publication number
CN106483164A
CN106483164A CN201611012611.3A CN201611012611A CN106483164A CN 106483164 A CN106483164 A CN 106483164A CN 201611012611 A CN201611012611 A CN 201611012611A CN 106483164 A CN106483164 A CN 106483164A
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China
Prior art keywords
oil sample
flash
point
micro
test system
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CN201611012611.3A
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Chinese (zh)
Inventor
张继勇
刘东明
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Beijing Run Road Oil Monitoring Technology Co Ltd
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Beijing Run Road Oil Monitoring Technology Co Ltd
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Publication of CN106483164A publication Critical patent/CN106483164A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00Investigating or analyzing materials by the use of thermal means
    • G01N25/50Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
    • G01N25/52Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining flash-point of liquids

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The present invention relates to a kind of test system for testing oil sample close flash point, wherein, the test system, including:Specimen cup, for accommodating the oil sample;Miniature heating furnace, for heating the oil sample in the specimen cup;The micro- electric arc of high frequency, for lighting a fire to the oil sample;With flash-point detection module, for detecting the flash-point of the oil sample.The invention further relates to a kind of method of testing for testing oil sample close flash point.

Description

For testing test system and the method for oil sample close flash point
Technical field
The invention belongs to field of analytic instrument, in particular it relates to for the test system and the side that test oil sample close flash point Method.
Background technology
When liter high-temperature is heated, vapor concentration is also gradually increased liquid combustible, when removing, with outside burning things which may cause a fire disaster, the steam that ignites During with the gaseous mixture of air, top occurs moment scintillation phenomenon, and now the temperature of liquid combustible is close flash point.Liquid The danger classes of combustible is divided according to close flash point.The ratio of oil product composition can also be judged from the height of close flash point Weight, identifies that oil product occurs the danger of fire.Close flash point is the very important physical characteristic of liquid combustible.However, The close flash point instrument being widely used at present has the disadvantages that:Big using sample size, the testing time is long, and cooling velocity is slow.In order to Overcome disadvantage mentioned above, it would be highly desirable to which exploitation is a kind of using sample size is little, test is fast, the fast cooling survey for testing oil sample close flash point Test system.
Content of the invention
It is an object of the invention in order to solve the above problems, on the one hand, the present invention provides one kind and closes for testing oil sample The test system of mouth flash-point, wherein, including:Specimen cup, for accommodating oil sample;Miniature heating furnace, for heating in specimen cup The oil sample;The micro- electric arc of high frequency, for lighting a fire to oil sample;With flash-point detection module, for detecting the flash-point of oil sample.
According to an aspect of the present invention, miniature heating furnace includes fine air pump, temperature sensor and heater.
According to an aspect of the present invention, temperature sensor can be PT100 temperature sensor.
According to an aspect of the present invention, the micro- electric arc of high frequency is arranged at the outside of specimen cup, and flash-point detection module is light Electric transducer, to determine the flash-point value of oil sample by the change of the flame light of the micro- electric arc of high frequency.
According to an aspect of the present invention, if the flame light duration is between 8s and 15s, it is determined that Current Temperatures are for dodging Point.
According to an aspect of the present invention, the micro- electric arc of high frequency is arranged at the inside of specimen cup, and flash-point detection module is micro- Pressure test device, to determine the flash-point value of oil sample by the air pressure change of the steam of the sample in specimen cup.
According to an aspect of the present invention, micro- pressure test device includes micro-pressure sensor.
On the other hand, the present invention also provides a kind of method of testing for testing oil sample close flash point, wherein, including following Step:First operation, using the oil sample in miniature heating stove heat specimen cup, and supplements air with fine air pump;Second behaviour Make, oil sample is lighted a fire using high frequency micro- electric arc;3rd operation, determines the flash-point value of oil sample using flash-point detection module, and 4th operation, records the flash-point value of oil sample using close flash point analysis module.
Compared with prior art, beneficial effects of the present invention:
(1) using the close flash point of the test system and test oil sample of the present invention, using sample size considerably less (1-2mL), both Tested oil sample is saved, has saved cleaning solvent again, while the discharge of harmful substance is reduced, reduced the body to operating personnel Body is damaged, and makes to be possibly realized the measurement of some micro rare oil sample close flash points;
(2) due to the volume very little of the test system of the present invention, save and taken up space and electric energy;With
(3) the test system and test speed of the present invention is fast, substantially increases operating efficiency, contributes to producing the quality of product Control, is that society brings huge benefit.
Description of the drawings
Fig. 1 is the test system of test oil sample close flash point of flash-point detection module when being micro- pressure test device.
Fig. 2 is test system of the flash-point detection module for test oil sample close flash point during photoelectric sensor.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, described specific embodiment is only right The present invention is explained, and is not limited to the present invention.
According to the embodiment of the present invention, the present invention provides a kind of such as Fig. 1 or as shown in Figure 2 and remains silent for testing oil sample The test system of flash-point, which includes:Specimen cup 5, for accommodating oil sample 1;Miniature heating furnace 6, for heating the oil in specimen cup Sample 1;The micro- electric arc 3 of high frequency, for lighting a fire to oil sample 1;With flash-point detection module, for detecting the flash-point of oil sample 1.
According to the embodiment of the present invention, miniature heating furnace includes fine air pump, temperature sensor and heater.
According to the embodiment of the present invention, temperature sensor can be PT100 temperature sensor.
According to the embodiment of the present invention, the micro- electric arc of high frequency is arranged at the outside of specimen cup, and flash-point detection module is Photoelectric sensor 7 ', to determine the flash-point value of oil sample by the change of the flame light of the micro- electric arc of high frequency.
According to the embodiment of the present invention, if the flame light duration is between 8s and 15s, it is determined that Current Temperatures are Flash-point.
According to the embodiment of the present invention, the micro- electric arc of high frequency is arranged at the inside of the specimen cup, and flash-point detection mould Block is micro- pressure test device 7, to determine the flash-point value of oil sample by the air pressure change of the steam of the sample in specimen cup.
According to the embodiment of the present invention, micro- pressure test device includes micro-pressure sensor.
According to another implementation of the invention, the present invention also provides a kind of test for testing oil sample close flash point Method, wherein, comprises the following steps:First operation, using the oil sample in miniature heating stove heat specimen cup, and uses fine air Pump supplements air;Second operation, is lighted a fire to oil sample using the micro- electric arc of high frequency;3rd operation, true using flash-point detection module The flash-point value of stand oil sample, and the 4th operation, record the flash-point value of oil sample using close flash point analysis module.
Operation principle for testing the test system of oil sample close flash point is as follows:
(1) when the micro- electric arc of high frequency is arranged at the outside of specimen cup, flash-point detection module is micro- pressure test device, test The test system of oil sample close flash point such as Fig. 1, its Cleaning Principle is:Oil sample 1 is loaded in the specimen cup 5 of carry sample lid 2, cover Sample lid 2, makes oil sample 1 in confined space, then provides air with fine air pump to the confined space;Use miniature heating Stove 6 heats the oil sample 1 in confined space;When the temperature of oil sample 1 reaches the temperature for estimating 20 DEG C of below flash-point value, micro- with high frequency Electric arc 3 is lighted a fire to the steam of 1 ullage of oil sample;During lighting a fire, 1 liquid of oil sample is detected with micro- pressure test device 7 The pressure change of the steam above face, when pressure has almost no change, continues heating oil sample, raises oil sample temperature, under wait Once light a fire, when pressure becomes suddenly hour as the burning of steam consumes large quantity of air, then firing temperature is close flash point Value.Said process is a complete test process, it is generally the case that the determination of flash-point value is needed from estimating below flash-point value 20 DEG C begin to test the flash-point value of oil sample, until obtaining flash-point value, this may need repeatedly to test.As described above, when flash-point is examined When surveying module for micro- pressure test device, whole detection process is all carried out in confined space, need not open sample lid 2, And detect that by micro- pressure test device 7 pressure change of steam of 1 ullage of oil sample, can determining the flash-point value of oil sample Intuitively to find out temperature during pressure drop, i.e. flash-point value from corresponding computer software.Test process is simple and convenient, no With atmosphere, it is prevented from catching fire etc. dangerous, because confined space itself is it is prevented that catch fire.
(2) when the micro- electric arc of high frequency is arranged at the inside of specimen cup, flash-point detection module is photoelectric sensor, tests oil sample The test system of close flash point such as Fig. 2, its Cleaning Principle is:Oil sample 1 is loaded in the specimen cup 5 of carry sample lid 2, cover sample Lid 2, makes oil sample 1 in confined space, then provides air with fine air pump to the confined space;With miniature heating furnace 6 Oil sample 1 in heating confined space;When the temperature of oil sample 1 reaches the temperature for estimating 20 DEG C of below flash-point value, by 2 dozens, sample lid Open and the steam of 1 ullage of oil sample is streaked with the micro- electric arc 3 of high frequency and lighted a fire;During lighting a fire, with photoelectric sensor 7 ' The flame duration of the steam of detection 1 ullage of oil sample, when flame duration is less than 8s or is more than 15s, covers sample Product lid 2, continues heating oil sample, raises oil sample temperature, wait and lighting a fire next time, when flame duration is between 8s and 15s, Firing temperature is close flash point value.Said process is a complete test process, it is generally the case that the determination of flash-point value is needed Will be from the flash-point value for estimating 20 DEG C of below flash-point value and begin to test oil sample, until obtaining flash-point value, this may need repeatedly to survey Examination.As described above, when flash-point detection module is photoelectric sensor, streaking the steam of 1 ullage of oil sample with the micro- electric arc 3 of high frequency And during being lighted a fire, sample lid 2 closelys follow the micro- electric arc 3 of high frequency, sample lid 2 can be covered in time, this can reduce high frequency The time of contact of micro- electric arc 3, the steam of 1 ullage of oil sample and air, the danger that catches fire can be reduced, it is also possible to prevent oil sample Burn in an atmosphere and discharge substantial amounts of pernicious gas.
Using the close flash point of the test system and test oil sample of the present invention, considerably less using sample size, both saved tested Oil sample, saves cleaning solvent again, while reducing the discharge of harmful substance, reducing the physical impairment to operating personnel, making Measurement to some micro rare oil sample close flash points is possibly realized.
Due to the volume very little of the test system of the present invention, save and taken up space and electric energy.
The test system and test speed of the present invention is fast, substantially increases operating efficiency, contributes to producing the quality control of product System, is that society brings huge benefit.
Embodiments above is only used for that the present invention will be further described, it is impossible to be interpreted as to the scope of the present invention Limit.Any engineers and technicians for being familiar with the field present invention is done according to foregoing invention content some nonessential change Enter and adjust, should all be included within the scope of the present invention.

Claims (8)

1. a kind of test system for testing oil sample close flash point, wherein, including:
Specimen cup, for accommodating the oil sample;
Miniature heating furnace, for heating the oil sample in the specimen cup;
The micro- electric arc of high frequency, for lighting a fire to the oil sample;With
Flash-point detection module, for detecting the flash-point of the oil sample.
2. test system according to claim 1, wherein, the miniature heating furnace includes fine air pump, TEMP Device and heater.
3. test system according to claim 1, wherein, the temperature sensor is PT100 temperature sensor.
4. test system according to claim 1, wherein, the micro- electric arc of the high frequency is arranged at the outside of the specimen cup, And the flash-point detection module is photoelectric sensor, described to be determined by the change of the flame light of the micro- electric arc of the high frequency The flash-point value of oil sample.
5. test system according to claim 4, wherein, if the flame light duration is between 8s and 15s, Determine Current Temperatures for flash-point.
6. test system according to claim 1, wherein, the micro- electric arc of the high frequency is arranged at the inside of the specimen cup, And the flash-point detection module is micro- pressure test device, with the air pressure of the steam by the sample in the specimen cup The flash-point value for changing to determine the oil sample.
7. test system according to claim 6, wherein, micro- pressure test device includes micro-pressure sensor.
8. a kind of method of testing for testing oil sample close flash point, wherein, comprises the following steps:
First operation, using the oil sample in miniature heating stove heat specimen cup, and supplements air with fine air pump;
Second operation, is lighted a fire to the oil sample using the micro- electric arc of high frequency;
3rd operation, determines the flash-point value of the oil sample using flash-point detection module, and
4th operation, records the flash-point value of the oil sample using close flash point analysis module.
CN201611012611.3A 2016-10-27 2016-11-17 For testing test system and the method for oil sample close flash point Pending CN106483164A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610955646 2016-10-27
CN2016109556464 2016-10-27
CN201610927210 2016-10-31
CN2016109272104 2016-10-31

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109142439A (en) * 2018-09-03 2019-01-04 管亮 Distilling flask, oil product are without ignition type close flash point measuring method and system
US20200096198A1 (en) * 2018-09-20 2020-03-26 Anton Paar Provetec Gmbh Electric Ignition for Flashpoint Tester
CN111537562A (en) * 2020-04-30 2020-08-14 上海景颐自动化设备有限公司 Flash point testing method for explosion-proof pressure detection
CN111766269A (en) * 2020-08-11 2020-10-13 合肥国轩高科动力能源有限公司 Automatic testing system and method for closed flash point of lithium ion battery electrolyte
CN114441596A (en) * 2020-10-30 2022-05-06 中国石油天然气股份有限公司 Diesel oil flash point testing device and diesel oil flash point testing method

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109142439A (en) * 2018-09-03 2019-01-04 管亮 Distilling flask, oil product are without ignition type close flash point measuring method and system
US20200096198A1 (en) * 2018-09-20 2020-03-26 Anton Paar Provetec Gmbh Electric Ignition for Flashpoint Tester
US11635207B2 (en) * 2018-09-20 2023-04-25 Anton Paar Provetec Gmbh Electric ignition for flashpoint tester
CN111537562A (en) * 2020-04-30 2020-08-14 上海景颐自动化设备有限公司 Flash point testing method for explosion-proof pressure detection
CN111766269A (en) * 2020-08-11 2020-10-13 合肥国轩高科动力能源有限公司 Automatic testing system and method for closed flash point of lithium ion battery electrolyte
CN114441596A (en) * 2020-10-30 2022-05-06 中国石油天然气股份有限公司 Diesel oil flash point testing device and diesel oil flash point testing method
CN114441596B (en) * 2020-10-30 2024-01-30 中国石油天然气股份有限公司 Diesel oil flash point testing device and diesel oil flash point testing method

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