CN208420216U - A kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer - Google Patents
A kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer Download PDFInfo
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- CN208420216U CN208420216U CN201820991140.3U CN201820991140U CN208420216U CN 208420216 U CN208420216 U CN 208420216U CN 201820991140 U CN201820991140 U CN 201820991140U CN 208420216 U CN208420216 U CN 208420216U
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- thermocouple
- correcting
- calibration
- thermal oxidation
- oxidation stability
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Abstract
The utility model discloses a kind of thermocouple means for correctings of fuel thermal oxidation stability analyzer, the thermocouple means for correcting includes power supply, step-down transformer, calibration of thermocouple metallic rod, the primary coil of the power supply connection step-down transformer, the both ends of the secondary coil of the step-down transformer are separately connected metal connecting piece, the metal connecting piece connects calibration of thermocouple metallic rod, the calibration of thermocouple metallic rod is equipped with tin can, is equipped with pure tin in the tin can.The utility model has the beneficial effects that can be with the thermocouple of calibrated fuel thermal oxidation stability analyzer.
Description
Technical field
The utility model relates to fuel thermal oxidation stability analyzer field, especially a kind of fuel thermal oxidation stability is surveyed
Determine the thermocouple means for correcting of instrument.
Background technique
Thermal oxidation stability refer to when oil product uses under long term storage or long term high temperature resist heat and oxidation,
The ability for keeping its property that permanent change does not occur.Thermal oxidation stability analyzer is a kind of heat for measuring sample under hot conditions
The instrument of oxidation stability.
Invent a kind of jet fuel thermal oxidation stability test device application No. is CN201310412093.4, be used to pair
Fuel oil carries out thermal oxide, it includes fuel oil sample container, the plunger pump, filter, thermal oxide being linked in sequence by pipeline
Device, flowmeter, oil return container provide the transformer of electric current for thermal oxidizer and to the jet fuel thermal oxidation stability
The control system that test device carries out automatically controlling；It is characterized in that the thermal oxidizer includes outer tube, stretched out from outer tube
Heater tube, the heater tube are an aluminum metal pipe, and both ends are connected with transformer, and the tube body of heater tube directly produces
Heat amount, it is ensured that the surface temperature of heater tube is uniform, and fuel oil, which touches the oxide generated when heating surface, to be added
Uniformly, for judgement fuel oil, whether qualification provides reliable foundation to hot surface precipitating.
In thermal oxidation stability analyzer, need to be monitored using temperature of the thermocouple to sample, therefore thermocouple
Measurement accuracy it is extremely important.But lack the function of being calibrated for thermocouple in the prior art, the measurement of thermocouple
Accuracy cannot be guaranteed, and the accuracy of thermal oxidation stability analyzer is also affected.
Utility model content
Purpose of the utility model is to solve the above problem, a kind of fuel thermal oxidation stability analyzer is devised
Thermocouple means for correcting.
Realize that above-mentioned purpose the technical solution of the utility model is a kind of thermocouple school of fuel thermal oxidation stability analyzer
Equipment, the thermocouple means for correcting include power supply, step-down transformer, calibration of thermocouple metallic rod, the power supply connection decompression
The primary coil of transformer, the both ends of the secondary coil of the step-down transformer are separately connected metal connecting piece, and the metal connects
Fitting connects calibration of thermocouple metallic rod, and the calibration of thermocouple metallic rod is equipped with tin can, is equipped with pure tin in the tin can.
The metal connecting piece includes upper busbar and lower busbar, and the upper busbar and lower busbar are separately connected heat
Galvanic couple calibrates the both ends at the both ends of metallic rod and the secondary coil of step-down transformer.
The thermocouple means for correcting further includes cooling device, and the cooling device includes cooling tube, and the cooling tube passes through
Upper busbar and lower busbar, the cooling tube connect water pump and water tank, have cooling water in the water tank.
The power supply connects computer control system.
The computer control system connects thermocouple.
Dress is corrected using a kind of thermocouple of fuel thermal oxidation stability analyzer of the technical solution of the utility model production
That sets has the beneficial effect that
1, electric power starting provides electric current for step-down transformer, and step-down transformer exports low-voltage and high-current, the big electricity of low-voltage
Stream inputs calibration of thermocouple metallic rod by connector, amount of heat is generated after the energization of calibration of thermocouple metallic rod, in tin can
Thermocouple is inserted into pure tin liquid by pure tin melted by heat after pure tin fusing, and is closed power supply and stopped heating, and pure tin stops heating
After start to condense, the pure tin temperature in thermocouple measurement condensation process is compared with the condensing characteristic curve of pure tin, can obtain
The calibration compensating value for obtaining thermocouple, is corrected thermocouple；
2, step-down transformer connects calibration of thermocouple metallic rod with lower busbar by upper busbar, and busbar has good
Heat dissipation, can preferably carry low-voltage and high-current than general conducting wire, low-voltage and high-current can make calibration of thermocouple metal
Bar generates amount of heat, accelerates pure tin heating rate；
3, upper busbar and lower busbar and the contact area of calibration of thermocouple metallic rod are larger, and thermal conductivity is preferable, cooling
Device can accelerate the cooling rate of upper busbar and lower busbar, and the speed for condensing pure tin is also accelerated, and make the school of thermocouple
Quasi- process can be rapidly completed；
4, power supply is controlled by computer control system and records the data of thermocouple, automate calibration more, more
It is convenient.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the thermocouple means for correcting of fuel thermal oxidation stability analyzer described in the utility model
Figure；
Fig. 2 is a kind of the cold of the pure tin of the thermocouple means for correcting of fuel thermal oxidation stability analyzer described in the utility model
Solidifying performance diagram；
In figure, 1, power supply；2, step-down transformer；3, calibration of thermocouple metallic rod；4, tin can；5, upper busbar；6, lower remittance
Flow item；7, cooling tube；8, computer control system；9, thermocouple.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawing, as shown in Figs. 1-2, a kind of fuel thermal oxidation stability
The thermocouple means for correcting of analyzer, thermocouple means for correcting include power supply 1, step-down transformer 2, calibration of thermocouple metallic rod 3, power supply
1 provides electric current, and the electric current that power supply 1 exports is converted low-voltage and high-current by step-down transformer 2, and calibration of thermocouple metallic rod 3 is logical
Steady temperature can be provided after electricity, thermocouple 9 is corrected.
Power supply 1 connects the primary coil of step-down transformer 2, and power supply 1 provides electric current to the primary coil of step-down transformer 2,
Low-voltage and high-current is exported from the secondary coil of step-down transformer 2.
The both ends of the secondary coil of step-down transformer 2 are separately connected metal connecting piece, and metal connecting piece connects thermocouple school
Metalloid bar 3, the low-voltage and high-current that step-down transformer 2 exports access calibration of thermocouple metallic rod 3 by metal connecting piece.Heat
Galvanic couple calibration metallic rod 3 itself can generate amount of heat after connecting low-voltage and high-current.
Calibration of thermocouple metallic rod 3 is equipped with tin can 4, and pure tin is equipped in tin can 4, can be melted after pure tin is heated.Pure tin it is cold
Solidifying characteristic curve is as shown in Fig. 2, the condensation point for having one section of temperature constant.Thermocouple 9 can pass through measurement pure tin condensation point
Temperature is corrected compared with normal temperature.
Metal connecting piece includes upper busbar 5 and lower busbar 6, and upper busbar 5 and lower busbar 6 are separately connected thermocouple
The both ends for calibrating the both ends of metallic rod 3 and the secondary coil of step-down transformer 2, since busbar has the characteristics that thermal diffusivity is good,
Low-voltage and high-current can be carried, and busbar and the contact area of calibration of thermocouple metallic rod 3 are larger, thermal conductivity is preferable.
Thermocouple means for correcting further includes cooling device, and cooling device includes cooling tube 7, and cooling tube 7 passes through upper 5 He of busbar
Lower busbar 6, cooling tube 7 connect water pump and water tank, have cooling water in water tank, water pump is pumped into the cooling water of flowing to cooling tube 7.
Power supply 1 connects computer control system 8, and computer control system 8 controls the opening and closing of power supply 1, carries out heat
9 timing of galvanic couple opens power supply 1, closes power supply 1 after the pure tin fusing in tin can 4.
Computer control system 8 connects thermocouple 9, thermocouple 9 is inserted into tin can 4 after pure tin fusing, thermocouple 9 measures
Temperature out inputs computer control system 8.
The working principle of the utility model is that it is that step-down transformer 2 provides electric current that power supply 1, which is opened, and step-down transformer 2 exports
Low-voltage and high-current, low-voltage and high-current input calibration of thermocouple metallic rod 3 by connector, and calibration of thermocouple metallic rod 3 is logical
Amount of heat is generated after electricity, thermocouple 9 is inserted into pure tin liquid after pure tin fusing, and closes by the pure tin melted by heat in tin can 4
It closes power supply 1 and stops heating, pure tin starts to condense after stopping heating, and thermocouple 9 measures the pure tin temperature in condensation process, with pure tin
Condensing characteristic curve be compared, the calibration compensating value of thermocouple 9 can be obtained, thermocouple 9 is corrected；
Step-down transformer 2 connects calibration of thermocouple metallic rod 3 by upper busbar 5 and lower busbar 6, and busbar has good
Good heat dissipation can preferably carry low-voltage and high-current than general conducting wire, and low-voltage and high-current can make calibration of thermocouple golden
Belong to bar 3 and generate amount of heat, accelerates pure tin heating rate；
Upper busbar 5 and lower busbar 6 and the contact area of calibration of thermocouple metallic rod 3 are larger, and thermal conductivity is preferable, cooling
Device can accelerate the cooling rate of upper busbar 5 and lower busbar 6, and the speed for condensing pure tin is also accelerated, and make thermocouple 9
Calibration process can be rapidly completed；
Power supply 1 is controlled by computer control system 8 and records the data of thermocouple 9, automates calibration more, more
It is convenient.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody the principles of the present invention to some variations that some of them part may be made, and belong to the utility model
Protection scope within.
Claims (5)
1. a kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer, which is characterized in that the thermocouple means for correcting packet
Include power supply, step-down transformer, calibration of thermocouple metallic rod, the primary coil of the power supply connection step-down transformer, the decompression
The both ends of the secondary coil of transformer are separately connected metal connecting piece, and the metal connecting piece connects calibration of thermocouple metallic rod,
The calibration of thermocouple metallic rod is equipped with tin can, is equipped with pure tin in the tin can.
2. a kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer according to claim 1, which is characterized in that
The metal connecting piece includes upper busbar and lower busbar, and the upper busbar and lower busbar are separately connected calibration of thermocouple
The both ends of the secondary coil at the both ends and step-down transformer of metallic rod.
3. a kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer according to claim 2, which is characterized in that
The thermocouple means for correcting further includes cooling device, and the cooling device includes cooling tube, and the cooling tube passes through upper busbar
With lower busbar, the cooling tube connects water pump and water tank, has cooling water in the water tank.
4. a kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer according to claim 1, which is characterized in that
The power supply connects computer control system.
5. a kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer according to claim 4, which is characterized in that
The computer control system connects thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820991140.3U CN208420216U (en) | 2018-06-26 | 2018-06-26 | A kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820991140.3U CN208420216U (en) | 2018-06-26 | 2018-06-26 | A kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208420216U true CN208420216U (en) | 2019-01-22 |
Family
ID=65108072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820991140.3U Active CN208420216U (en) | 2018-06-26 | 2018-06-26 | A kind of thermocouple means for correcting of fuel thermal oxidation stability analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208420216U (en) |
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2018
- 2018-06-26 CN CN201820991140.3U patent/CN208420216U/en active Active
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