CN204613132U - A kind of device for the test of conduction oil anti-coking - Google Patents
A kind of device for the test of conduction oil anti-coking Download PDFInfo
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- CN204613132U CN204613132U CN201520245605.7U CN201520245605U CN204613132U CN 204613132 U CN204613132 U CN 204613132U CN 201520245605 U CN201520245605 U CN 201520245605U CN 204613132 U CN204613132 U CN 204613132U
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Abstract
The utility model discloses a kind of device for the test of conduction oil anti-coking, comprise conduction oil container containing, resistance wire, temp probe and temperature controller; Described conduction oil container containing comprises bottle and the infundibulate mechanism be connected thereon, and described infundibulate mechanism comprises filler neck and funnel openings portion, and filler neck is in elongate shape; Described resistance wire inserts container containing from funnel openings portion, and it is inner that resistance wire arrives bottle; Described temp probe is attached to the surface of bottle; Described temperature controller contact resistance silk and temp probe, for the temperature value of adjusting resistance silk heating conduction oil.The topmost feature of the utility model device adopts resistance wire directly to heat conduction oil, in the process ensureing the heating of conduction oil high-level efficiency, local conduction oil may be made to be in superheat state, simulate electricity heating conduction oil coking deterioration under the environment of local overheating, evaluate the anticoking capability of conduction oil fast.
Description
Technical field
The present invention relates to a kind of conduction oil stabilizing test device, particularly a kind of heat-conductive-oil high-temperature coking test unit.Be particularly suitable for anti-coking and the comprehensive stability thereof of evaluating electricity heating conduction oil.
Background technology
Conduction oil is the organic heating medium used under the high temperature conditions.Generally all work in open type heat transfer system, conduction oil is in the condition of high temperature for a long time, there is oxidation reaction slowly circulating in process to contact with the oxygen in air, and then the impurity component that the conduction oil that has an impact normally works, the serviceable life of conduction oil is reduced greatly.Its most significant external manifestation occurs coking block in oil, and when extreme, conduction oil coking block blocks thermal conductive pipe, causes fire, causes any property loss and casualties.
At present, the domestic heat stability test to conduction oil detects usually through national standard (GB/T 23800-2009), the method by organic heat carrier splendid attire in heat treatment container, carry out sample thermal treatment, by measuring the deterioration rate after organic heat carrier thermal treatment, evaluate the thermal stability of organic heat carrier.Due to test condition and air exclusion, conduction oil sample deterioration rate difference different in limited test period is little, be difficult to the quality passing judgment on conduction oil, more serious problem is the conduction oil that have passed GB/T23800 national standard, uses also usually coking in open system.Secondly, the time of test is relatively long, and the research and development for new product are difficult to provide test result to feed back fast.
Chinese patent 203337582U discloses a kind of heat stability test container, may be used for organic heat carrier heat stability test, comprise bottle and the infundibulate mechanism be connected thereon, described infundibulate mechanism comprises filler neck and funnel openings portion, and the height of filler neck and the ratio of internal diameter are 40:1 ~ 250:1.This utility model thermal stability container handling structure is simple, easy processing, but it does not design corresponding resistive heater, can only heat from outside by being arranged on outside electric jacket, heating environment and the conduction oil in general heat conducting oil boiler situation of being heated is the same, the working condition of picture electric-heating heat-conductive oil can not be simulated, namely directly heat in the middle of oil and the harsh conditions that local oil film is overheated may be occurred, cannot make an appraisal to conduction oil stable char fast.
Summary of the invention
The object of the invention is to overcome test condition existing in prior art too gentle, the deficiency that test period is oversize, provides a kind of electricity heating heat-conductive-oil high-temperature anti-coking test unit.
In order to realize foregoing invention object, the invention provides following technical scheme:
For a device for conduction oil anti-coking test, comprise conduction oil container containing, resistance wire, temp probe and temperature controller.
Described conduction oil container containing comprises bottle and the infundibulate mechanism be connected thereon, described infundibulate mechanism is made up of filler neck and funnel openings portion, described filler neck is in elongate shape, the two ends of described filler neck connect bottle and infundibulate mechanism respectively, and preferred filler neck length and internal diameter are than being 40:1 ~ 250:1.
Described resistance wire is arranged on bottle inside, is connected with temperature controller by the electric wire inserted in container containing from funnel openings portion,
Described temp probe is attached to the surface of bottle, and preferably have on bottle surface the structure caved inward, temp probe is arranged in described sunk structure.Or temp probe is embedded bottle or bottle outer surface, direct formation firmly connects, and measures the temperature of conduction oil in bottle more reliably.
Described temperature controller is connected with temp probe.Temperature controller accepts the conduction oil temperature that temp probe records, and then adjusting resistance silk adds heat, controls the temperature value of conduction oil.
The topmost feature of coking test unit of the present utility model adopts resistance wire directly to heat conduction oil, and Resistant heating is heating in the middle of conduction oil, easy overheated coking.Boiler heating is imported into conduction oil from boiler furnace by steel pipe, generally has flow velocity faster, not easily coking.Device of the present invention, from power inside hot pin heating conduction oil, makes its natural convection, high temperature less than 350 DEG C, and oxidated rotten at 60-180 DEG C, and laser heating test, after 100-2000 hour, can evaluate the Coking of conduction oil accurately.After having tested, jointly determine that the anticoking capability of conduction oil is good and bad by the change of the coking weightening finish on test evaporation capacity, pipeline, sediment, acid number increase, index such as carbon residue increase viscosity, flash-point etc.
Further, the height of described filler neck is 400 ~ 1200mm, and the internal diameter of described filler neck is 6 ~ 20mm.
In the infundibulate mechanism of conduction oil container containing of the present utility model, there is elongated filler neck, when conduction oil is heated volumetric expansion in container containing time, can well to expanding from container containing, make the elongate portion falling heat-transfer oil of filler neck, and then in the elongate portion of filler neck and air heat-exchange cooling.The conduction oil temperature being expanded to the funnel openings portion at top eventually through filler neck is reduced to design load, and then effectively simulates the result of use of conduction oil in the hot environment of reality.Simultaneously, due to funnel openings, portion is larger, even if conduction oil enters after expanding, the amount of peristome is larger also can not overflow, and conduction oil wherein launch after and air contact surfaces amass increase, more can simulate conduction oil in heating system be subject to high temperature and strong oxidation under deterioration.
Further, described filler neck height is 700 ~ 800mm, and filler neck internal diameter is 10 ~ 12mm.Most preferably, described filler neck height is 500 ~ 600mm, described filler neck internal diameter 10 ~ 12mm.
Further, the shape of the bottle of described container containing can for spherical, conical or spheroid or other there is arbitrarily the equal shape storing effect, in order to make sample be heated evenly, preferred bottle shape is spherical.About concrete shape can with reference in Chinese patent 203337582U about the record of bottle shape.
Further, the volume of described bottle is 50 ~ 500mL.When volume is suitable for, the heat conduction oil mass of splendid attire is proper, namely can realize the test setting of Fast Heating and local overheating coking, can greatly reduce again and produce heating required time cost.Preferred bottle volume is the bottle size optimum of 150mL, 150mL, and test effect is best.
Further, described container containing is the better tightness of integrated container, integrated integral container, is more conducive to accurately measuring of the volatile quantity of conduction oil.Be preferably the one-body molded product of glass material or quartzy material, glass and quartz are transparent materials, are more conducive to direct observation situation in process of the test.
Further, described resistance filament length 7-15cm, resistance wire is as the criterion with the conduction oil that effectively can heat body portion for heating conduction oil length, unsuitable long or too short, long resistance wire can for the heat-conducting oil heating of filler neck part, and the object of test design produces deviation.Too short resistance wire then can make heating-up temperature rise slowly, is even difficult to the effect reaching conduction oil local overheating.So the length of resistance wire is preferably 7-15cm, be preferably 8-10cm.
Further, the resistance wire of described resistance wire to be heating power be 100-400W, the Resistant heating power of design is as the criterion with the consumption of conduction oil, adjust according to actual needs, according to the research of inventor, the bottle volume be suitable for the most corresponding to size selects 100-400W Resistant heating best results, the preferably resistance wire of 200W.
in sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
(1) device disclosed in the utility model device and Chinese patent 203337582U is compared, topmost feature adopts resistance wire to heat from conduction oil inside, ensureing in the process that conduction oil heats in high-level efficiency, local conduction oil can be made to be in overheated temperature under, in order to simulate conduction oil coking deterioration under exceedingly odious environment, evaluate the anticoking capability of conduction oil fast.
(2) the utility model device also maintains the rapid feedback effect that in the overheated of conduction oil and air, oxygen catalytic oxidation is rotten, be subject to a series of Continuous Heat stability test such as hyperthermia and superheating and funnel openings portion ingress of air oxidation deterioration by conduction oil in the bottom of container containing, a simple device achieves multipurpose.
(3) the utility model device can make conduction oil be under more severe hot environment, completes objects such as being heated, being oxidized, be overheated, rotten making a large amount of sample at short notice, in the result that the shortest test period build-in test goes out to need.
compared with prior art, beneficial effect of the present invention:.
Accompanying drawing illustrates:
Fig. 1 is the apparatus structure schematic diagram of the utility model conduction oil coking test.
Mark in figure: 1-conduction oil container containing, 1A-infundibulate mechanism, 11-bottle, 12-filler neck, 13-funnel openings portion, 2-resistance wire, 21-terminals, 3-electric wire, 4-temperature controller, 5-temp probe.
Embodiment
Below in conjunction with test example and embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
As shown in Figure 1, conduction oil coking test unit of the present utility model, comprises conduction oil container containing 1, resistance wire 2, temp probe 5 and temperature controller 4.Described conduction oil container containing comprises bottle 11 and the infundibulate mechanism 1A be connected thereon, described infundibulate mechanism 1A comprises filler neck 12 and funnel openings portion 13, described filler neck is in elongate shape, the two ends of described filler neck connect bottle and infundibulate mechanism respectively, and preferred filler neck 12 length and internal diameter are than being 40:1 ~ 250:1.Described resistance wire 2 is in bottle 11, and described resistance wire 2 is connected with outside by inserting electric wire in container containing from funnel openings portion, and described temp probe 5 is attached to the surface of bottle 11.Described temperature controller 4 contact resistance silk 2 and temp probe 5, for the temperature value of adjusting resistance silk heating conduction oil.Adopt resistance wire to heat, Resistant heating is heating in the middle of conduction oil, easy overheated coking.Jointly coking amount is determined by the change of the index such as coking weightening finish, sediment, acid number increase, carbon residue increase, viscosity, flash-point on test evaporation capacity, pipeline after having tested.Temperature controller is connected with power supply, is accepting after temperature control head tests the bottle temperature obtained, to carry out adjustment control and Resistant heating amount is increased or reduces, make the conduction oil temperature in bottle reach the numerical value designed in advance to heating power supply.
As shown in Figure 1, the connector lug 21 of resistance wire in the outside of conduction oil container containing, preferably at the top of container containing.Realize connecting by electric wire 3 between resistance wire and temperature controller.Connector lug is the power lug that resistance wire is connected to container containing outside.Resistance wire is positioned at bottle.
Further, described temperature controller can regulating resistance silk heating-up temperature, ensures that the temperature of conduction oil is from room temperature to consecutive variations 400 DEG C.Preferably, the temperature-controlled precision of described temperature controller is 0.5 DEG C.
Further, have on bottle surface the structure caved inward, temp probe 5 is arranged in described sunk structure.By arranging sunk structure, temp probe being installed therein, temp probe can be reduced greatly and fixing difficulty, ensureing the middle part medial temperature of temp probe close to bottle inside conduction oil simultaneously, reduce the thermometric error that temperature field causes.
In the utility model, body portion is due to the heat effect of resistance wire, and body portion belongs to high-temperature heating district, and conduction oil is herein subject to high-temperature heating, and the conduction oil contacted with resistance wire is subject to overheated effect especially.Filler neck part is convection heat transfer district, and the conduction oil in this region carries out heat exchange cooling by elongated filler neck and air, and high temperature heat conductive oil flows to the funnel part at top, and the conduction oil after the cooling of top then continues heating from top sinking to body portion.The top (i.e. funnel openings portion) of funnel mechanism is zoneofoxidation, realizes Quick Oxidation and go bad and cooling after conduction oil contacts with air herein.
Further, the height of described filler neck is 400 ~ 1200mm, and the internal diameter of described filler neck is 6 ~ 20mm.When filler neck internal diameter is less than 6mm, first, due to conduction oil at a lower temperature, as room temperature 20 DEG C, itself have larger viscosity, conduction oil flows in described heat treatment container needs the at substantial time; Secondly, in the process of carrying out high-temperature coking test, the convection current of conduction oil between bottle and funnel openings portion weakens, and affects the speed of heat-conductive-oil high-temperature oxidation coking, is unfavorable for testing inspection and observation; Finally, what too thin filler neck can have influence on resistance wire puts into bottle, increases the difficulty of test, makes the difficult arrangement of resistance wire, even cannot complete effective layout.Contrary, if filler neck internal diameter is too large, as 15mm, then in high-temperature heating process, strong to flowing through between bottle and funnel openings portion of conduction oil, what in bottle, conduction oil cannot realize local superhigh temperature crosses thermal oxide.While consideration filler neck internal diameter, also need the height considering filler neck, excessive height, the temperature of funnel openings portion and air contact portion will be too low, oxidation is too low, and the intensity of the actual service condition of simulation conduction oil obviously not (namely by the degree that can be subject to oxidation to a certain extent while high temperature).
Further, described filler neck height is 500 ~ 600mm, and filler neck internal diameter is 10 ~ 12mm.Find according to the research of inventor's test of long duration, when filler neck height is at 500 ~ 600mm, the convection intensity of conduction oil between bottle and funnel openings portion is best, and high-temperature oxydation proper temperature in bottle meets the requirement of test fast.
Further, described filler neck height is 500mm, described filler neck internal diameter 10mm.
Further, the shape of the bottle 11 of described container containing can be spherical, conical or spheroid.
Further, the volume of described bottle 11 is 50 ~ 500mL.Preferred bottle volume is 150mL.
Further, described container containing is integrated container,
Further, described container containing is the integrated container containing of glass material or quartzy material, and glass and quartz are transparent materials, are more conducive to direct observation situation in process of the test.
Claims (10)
1., for a device for conduction oil anti-coking test, comprise conduction oil container containing, resistance wire, temp probe and temperature controller;
Described conduction oil container containing comprises bottle and the infundibulate mechanism be connected thereon, and described infundibulate mechanism is made up of filler neck and funnel openings portion;
Described filler neck is in elongate shape, and the two ends of described filler neck connect bottle and infundibulate mechanism respectively;
Described resistance wire is arranged on bottle inside, is connected with temperature controller by the electric wire inserted in container containing from funnel openings portion;
Described temp probe is arranged on bottle surface;
Described temperature controller is connected with temp probe.
2. according to claim 1 for the device of conduction oil anti-coking test, it is characterized in that, have on bottle surface the structure caved inward, the structure of depression is for installing temp probe.
3. according to claim 1 for the device of conduction oil anti-coking test, it is characterized in that, temp probe embeds bottle.
4., according to claim 1 for the device of conduction oil coking test, it is characterized in that, the height of described filler neck is 400 ~ 1200mm, and the internal diameter of described filler neck is 6 ~ 20mm.
5. according to claim 1 for the device of conduction oil anti-coking test, it is characterized in that, the shape of the bottle of described container containing can be spherical, conical or spheroid.
6., according to claim 1 for the device of conduction oil anti-coking test, it is characterized in that, the volume of described bottle is 50 ~ 500mL.
7., according to claim 1 for the device of conduction oil anti-coking test, it is characterized in that, described container containing is integrated.
8., according to claim 1 for the device of conduction oil anti-coking test, it is characterized in that, described resistance filament length 7-15cm.
9., according to claim 8 for the device of conduction oil anti-coking test, it is characterized in that, the length of described resistance wire is 8-10cm.
10. according to claim 1,8 or 9 for the device of conduction oil anti-coking test, it is characterized in that, the resistance wire of described resistance wire to be heating power be 100-400W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245605.7U CN204613132U (en) | 2015-04-22 | 2015-04-22 | A kind of device for the test of conduction oil anti-coking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520245605.7U CN204613132U (en) | 2015-04-22 | 2015-04-22 | A kind of device for the test of conduction oil anti-coking |
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| CN204613132U true CN204613132U (en) | 2015-09-02 |
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| CN201520245605.7U Active CN204613132U (en) | 2015-04-22 | 2015-04-22 | A kind of device for the test of conduction oil anti-coking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777184A (en) * | 2015-04-22 | 2015-07-15 | 成都迈斯拓新能源润滑材料有限公司 | Device for anti-coking test of heat conducting oil |
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- 2015-04-22 CN CN201520245605.7U patent/CN204613132U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777184A (en) * | 2015-04-22 | 2015-07-15 | 成都迈斯拓新能源润滑材料有限公司 | Device for anti-coking test of heat conducting oil |
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Effective date of registration: 20160601 Address after: 610000 Shuangliu County, southwest of Sichuan Province, Hong Kong Airport Economic Development Zone Industrial Concentration Area Patentee after: Chengdu Max Top New Energy Lubricating Material Co., Ltd. Address before: 610000 No. 87, West Bridge Road, Chengdu, Sichuan, 91, attached to Jinniu District Patentee before: Hu Jianwei |