CN207502441U - A kind of automatic pour point detector with controllable temperature difference method - Google Patents
A kind of automatic pour point detector with controllable temperature difference method Download PDFInfo
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- CN207502441U CN207502441U CN201721607602.9U CN201721607602U CN207502441U CN 207502441 U CN207502441 U CN 207502441U CN 201721607602 U CN201721607602 U CN 201721607602U CN 207502441 U CN207502441 U CN 207502441U
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- temperature
- temperature sensor
- test tube
- oil sample
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- 238000000034 method Methods 0.000 title claims abstract description 23
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 63
- 238000001514 detection method Methods 0.000 abstract description 13
- 235000015927 pasta Nutrition 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000001052 transient effect Effects 0.000 abstract description 5
- 239000010779 crude oil Substances 0.000 abstract description 2
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 238000000691 measurement method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000001073 sample cooling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
A kind of automatic pour point detector with controllable temperature difference method belongs to petroleum sneeze-point automatic measurement technique field.The pour point detector stretches into center temperature sensor in oil sample to be measured, the first temperature sensor, second temperature sensor not contact measured oil sample.First microheater and the second microheater always keep high 2 DEG C of sensor temperature ratio oil inner sensor temperature or more on pasta.When pour point detects, test tube tilts.If oil sample flows, sensor will encounter temperature oil sample lower than it on liquid level, this transient temperature 0.5 DEG C of bust or more immediately within the several seconds.Conversely, if oil sample does not flow, transient temperature will not bust.In other words, test tube tilts, and whether oil sample uppermost sensor temperature is mutated, so that it may judge whether oil sample flows.For oil sample in the range of positive 50 DEG C minus 80 DEG C, detection is sensitive, and work is extremely reliable.Detector is simple in structure, and installation and debugging are easy；Detection process is unrelated with oil product.Adapt to the detection of the various oil products such as crude oil, fuel oil, lubricating oil.
Description
Technical field
The utility model is related to a kind of automatic pour point detectors with controllable temperature difference method, belong to petroleum sneeze-point and detect automatically
Technical field.
Background technology
Oil and oil product are under low-temperature condition, flowable minimum temperature, referred to as pour point.
By ISO3016. ASTM D97, IP27, GB/T3535 standards, pour point is measured with test tube gradient method.At present, pour point
Automatic detector mainly optically detects：Such as fiber reflection method, high-order photoelectric method, liquid level camera method etc..These methods lack
Putting is：At a lower temperature, liquid level is shunk, and out-of-flatness, affects detection result.Especially, detector surface at low temperature
It makes moist moisture condensation, seriously affects measurement sensitivity and reliability.
Invention content
In order to overcome upper defect in the prior art, the utility model provides a kind of inclining automatically with controllable temperature difference method
Spot detector, the pour point detector is in test tube oil sample temperature-fall period, and sensor temperature is than oily inner sensor on total holding pasta
High 2 DEG C of temperature or more.When pour point detects, test tube tilts.If oil sample flows, it is lower than it will to encounter temperature for sensor on liquid level
Oil sample, this transient temperature, 0.5 DEG C of bust or more immediately within the several seconds.Conversely, if oil sample does not flow, transient temperature is not
It can bust.In other words, test tube tilts, and whether oil sample uppermost sensor temperature is mutated, so that it may judge whether oil sample flows, here it is
The main points of temperature differential method pour point detection.
The technical solution adopted in the utility model is：A kind of automatic pour point detector with controllable temperature difference method, it includes examination
Condenser temperature sensor, oil sample to be measured, cold-trap, programmable controller PLC and the refrigerating plant manage, being arranged in cold-trap, it is also
It is miniature including a center temperature sensor, the first temperature sensor, second temperature sensor, the first microheater and second
Heater；The test tube is placed in cold-trap, and the center temperature sensor stretches into invisible spectro oil sample to be measured across test tube plug
In, the first temperature sensor is stretched into across test tube plug in test tube close to center temperature sensor, and in the first temperature sensor
End is equipped with the first microheater, and second temperature sensor is stretched into across test tube plug in test tube close to the inner wall of test tube, and
The end of second temperature sensor is equipped with the second microheater；First temperature sensor, the first microheater, second
Temperature sensor and the second microheater do not contact invisible spectro oil sample to be measured；It is first temperature sensor, first miniature
Heater, second temperature sensor, the second microheater and condenser temperature sensor are electrically connected with programmable controller PLC,
Programmable controller PLC is electrically connected printer through touch screen；The refrigerating plant provides cold to cold-trap.
First temperature sensor, the first microheater and second temperature sensor select miniature platinum resistance temperature to pass
Sensor.
The beneficial effects of the utility model are：It is this that central temperature is sensed with the automatic pour point detector of controllable temperature difference method
Device is stretched into invisible spectro oil sample to be measured, and the first temperature sensor, second temperature sensor do not contact invisible spectro oil sample to be measured.
First microheater and the second microheater always keep on pasta high 2 DEG C of sensor temperature ratio oil inner sensor temperature with
On.When pour point detects, test tube tilts.If oil sample flows, sensor will encounter temperature oil sample lower than it on liquid level, this is instantaneous
Temperature 0.5 DEG C of bust or more immediately within the several seconds.Conversely, if oil sample does not flow, transient temperature will not bust.Change speech
It, test tube tilts, and whether oil sample uppermost sensor temperature is mutated, so that it may judge whether oil sample flows, here it is temperature differential method pour points
The main points of detection.For oil sample in positive 50 DEG C-minus 80 DEG C of gamut scopes, detection is sensitive, and work is extremely reliable.Detector ontology
Simple in structure, installation and debugging are easy；Detection process is unrelated with oil sample viscosity, color, kind.Adapt to crude oil, fuel oil, lubrication
The detection of the various oil products such as oil.
Description of the drawings
Fig. 1 is a kind of structure diagram of the automatic pour point detector of controllable temperature difference method.
Fig. 2 is oil sample flow schematic diagram when test tube tilts 45 degree of angles.
Fig. 3 is oil sample solidification schematic diagram when test tube tilts 45 degree of angles.
Fig. 4 is oil sample solidification schematic diagram when pipe tilts an angle of 90 degrees.
In figure：1st, center temperature sensor, the 2, first temperature sensor, 3, second temperature sensor, 4, first it is miniature plus
Hot device, the 5, second microheater, 6, test tube, 7, condenser temperature sensor, 8, oil sample to be measured, 9, cold-trap.
Specific embodiment
Fig. 1 shows a kind of structure diagram of the automatic pour point detector of controllable temperature difference method.It is this to use controllable temperature difference in figure
The automatic pour point detector of method include test tube 6, the condenser temperature sensor 7 being arranged in cold-trap 9, oil sample to be measured 8, cold-trap 9, can
Programmable controller PLC, refrigerating plant, center temperature sensor 1, the first temperature sensor 2, second temperature sensor 3, first are micro-
4 and second microheater 5 of type heater.Test tube 6 is placed in cold-trap 9, and center temperature sensor 1 stretches into examination across test tube plug
In oil sample to be measured 8 in pipe 6, the first temperature sensor 2 is stretched into across test tube plug in test tube 6 close to center temperature sensor 1, and
The first microheater 4 is equipped in the end of the first temperature sensor 2, second temperature sensor 3 is passed through close to the inner wall of test tube 6
Test tube plug is stretched into test tube 6, and is equipped with the second microheater 5 in the end of second temperature sensor 3.First temperature sensor
2nd, the first microheater 4,3 and second microheater 5 of second temperature sensor do not contact the oil sample to be measured 8 in test tube 6.The
One temperature sensor 2, the first microheater 4, second temperature sensor 3, the second microheater 5 and condenser temperature sensor
7 are electrically connected with programmable controller PLC, and programmable controller PLC is electrically connected printer through touch screen.Refrigerating plant is to cold-trap 9
Cold is provided.First temperature sensor 2, the first microheater 4 and second temperature sensor 3 select miniature platinum resistance temperature to pass
Sensor.
Using above-mentioned technical solution, pour point test tube is placed in cold-trap, in vitro there are three miniature platinum resistance temperatures to pass
Sensor, for a sensor in oil sample, another two sensors do not contact pasta.Metal bath outer wall has turbine and worm transmission mechanism
(not shown), under motor driving, cold-trap drives test tube rotatable 45 degree of angles, an angle of 90 degrees, two miniature heating in test tube
Device, every heating power only have 0.25W, have no effect when heating to oil sample cooling.Microheater is mainly used for temperature
Spend the first half term in positive 50 DEG C-minus 80 DEG C of measurement ranges, i.e., 15 DEG C 50 DEG C positive-minus, heater heats under electronic circuit control,
While three temperature sensors is made quickly to reduce temperature under refrigeration machine effect, two sensor temperatures on pasta, because micro
Heat effect, it is all synchronous higher than 2 DEG C or 2 DEG C of oil sample real-time temperature or more.Just because of the presence of this temperature difference, makes pour point detector
, can be sensitive in this segment limit, reliably work.
In positive 50 DEG C of pour point temperature-minus 80 DEG C of range abilities, only oil sample is in minus 15 DEG C of temperature below, pasta
Sensor temperature could be implemented higher than 2 DEG C of oil sample or more, temperature difference detection.Air themperature drops in Temperature Quantity Cheng Qian's half way, test tube
Warm very fast, later gradually slack-off, at this point, air themperature is less than oil sample temperature, then, air themperature is equal with oil sample temperature, this
Kind variable condition can not be detected with temperature differential method, and setting Miniature heating plate is heated, and makes two temperature sensors on pasta same
Step is higher than 2 DEG C of real-time temperature of temperature sensor or more in oil, in this way, in measurement range first half term, detector also can it is sensitive,
It reliably works, here it is the cores of controllable temperature difference method pour point detector.
Three platinum resistance and cold-trap sensor of pour point controllable temperature difference detector all access the temperature that can compile naked controller PLC
Module, through PLC adjusting controls, the first temperature sensor, the central temperature that the temperature of second temperature sensor is higher than in oil sample pass
2 DEG C of sensor or more, programmable controller PLC is connected with touch screen with printer, and cold-trap is connect with refrigerating plant.Pour point glass tries
Bore is thicker, is first solidified close to test tube outer wall oil sample in cooling, center final set above oil sample.It examines in order to prevent
Mistake is measured, pour point there are two detection sensors, and only when they all detect that oil sample does not flow, programmable controller PLC is
Judge off-test.During actually detected oil sample pour point, pour point temperature is first set on the touchscreen, such as minus 36 DEG C, when oil temperature is down to
At minus 36 DEG C, 45 degree of angles of cold-trap wing drop（As shown in Figure 2）At this point, as long as any detection sensor encounters oil sample, i.e.,
Shi Wendu will mutate, and illustrate that oil sample still flows, do not solidify.Then, programmable controller PLC output signal, test tube are multiple
Position is vertical, waits for next test point.Oil sample temperature is down to minus 39 DEG C (3 DEG C of intervals), and test tube tilts 45 degree of angles again, at this point,
If detection sensor temperature is not mutated（As shown in Figure 3）, illustrate that oil sample does not flow, programmable controller PLC output signal,
Test tube tilts an angle of 90 degrees,（As shown in Figure 4）, and be delayed 5 seconds, 5 seconds after, if the first temperature sensor real-time temperature is not sent out
Raw mutation, oil sample thoroughly solidify, off-test.Conversely, the temperature jump of the first temperature sensor, illustrates oil sample upper center
Oil sample still flows, and test tube resets, and waits for next test point.When oil temperature is down to minus 42 DEG C, repeat the above process.Only when
When one temperature sensor temperature is not mutated, test terminates, printer automatic printing result of the test.
Claims (2)
1. a kind of automatic pour point detector with controllable temperature difference method, it includes test tube（6）, be arranged on cold-trap（9）In cold-trap temperature
Spend sensor（7）, oil sample to be measured（8）, cold-trap（9）, programmable controller PLC and refrigerating plant, it is characterized in that：It further includes one
A center temperature sensor（1）, the first temperature sensor（2）, second temperature sensor（3）, the first microheater（4）With
Two microheaters（5）；The test tube（6）It is placed on cold-trap（9）In, the center temperature sensor（1）It is stretched across test tube plug
Enter test tube（6）Interior oil sample to be measured（8）In, the first temperature sensor（2）Close to center temperature sensor（1）It is stretched across test tube plug
Enter test tube（6）It is interior, and in the first temperature sensor（2）End be equipped with the first microheater（4）, second temperature sensor
（3）Close to test tube（6）Inner wall stretch into test tube across test tube plug（6）It is interior, and in second temperature sensor（3）End be equipped with the
Two microheaters（5）；First temperature sensor（2）, the first microheater（4）, second temperature sensor（3）With
Two microheaters（5）Do not contact test tube（6）Interior oil sample to be measured（8）；First temperature sensor（2）, first it is miniature plus
Hot device（4）, second temperature sensor（3）, the second microheater（5）With condenser temperature sensor（7）With programmable controller
PLC is electrically connected, and programmable controller PLC is electrically connected printer through touch screen；The refrigerating plant is to cold-trap（9）Cold is provided.
2. a kind of automatic pour point detector with controllable temperature difference method according to claim 1, it is characterized in that：First temperature
Spend sensor（2）, the first microheater（4）And second temperature sensor（3）Select miniature platinum resistance temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607602.9U CN207502441U (en) | 2017-11-27 | 2017-11-27 | A kind of automatic pour point detector with controllable temperature difference method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607602.9U CN207502441U (en) | 2017-11-27 | 2017-11-27 | A kind of automatic pour point detector with controllable temperature difference method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207502441U true CN207502441U (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721607602.9U Withdrawn - After Issue CN207502441U (en) | 2017-11-27 | 2017-11-27 | A kind of automatic pour point detector with controllable temperature difference method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817264A (en) * | 2017-11-27 | 2018-03-20 | 蔡智韬 | A kind of automatic pour point detector with controllable temperature difference method |
-
2017
- 2017-11-27 CN CN201721607602.9U patent/CN207502441U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817264A (en) * | 2017-11-27 | 2018-03-20 | 蔡智韬 | A kind of automatic pour point detector with controllable temperature difference method |
| CN107817264B (en) * | 2017-11-27 | 2023-10-31 | 蔡智韬 | Automatic inclination point detector by controllable temperature difference method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180615 Effective date of abandoning: 20231031 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180615 Effective date of abandoning: 20231031 |