CN104691027A - Heat transmission roller with graphite interlayer and heat transmission method of heat transmission roller - Google Patents
Heat transmission roller with graphite interlayer and heat transmission method of heat transmission roller Download PDFInfo
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- CN104691027A CN104691027A CN201510044677.XA CN201510044677A CN104691027A CN 104691027 A CN104691027 A CN 104691027A CN 201510044677 A CN201510044677 A CN 201510044677A CN 104691027 A CN104691027 A CN 104691027A
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Abstract
The invention discloses a heat transmission roller with a graphite interlayer and a heat transmission method of the heat transmission roller. The heat transmission roller comprises an external roller body 1, an internal roller 2, the graphite interlayer 3 and an infrared heating pipe 4. The graphite interlayer 3 is clamped between the internal roller body 2 and the external roller body 1 of the heat transmission roller. The internal roller body 2 and the external roller body 1 are both metal layers. According to the invention, the temperature transmission efficiency along the surface of the heat transmission roller is improved by utilizing the characteristic that the plane thermal conductivity of graphite is rather high, the graphite interlayer is arranged in the heat transmission roller device, and the temperature uniformity of the heat transmission roller is greatly improved.
Description
Technical field
The present invention relates to a kind of heat transfer roller and the heating means thereof with graphite intercalates.
Background technology
The technology of existing heat transfer roller control temperature uniformity is mainly territory, multipoint cell thermal source temperature control, strengthens homogeneous heat-transfer matcrial thickness and use heat transfer technology of heat pipe method.Territory, multipoint cell thermal source temperature control technique is exactly thermal source is divided into different sections (or region), reaches the conforming control of bulk temperature by independently arranging the temperature controlling a certain section.Its shortcoming is: segmented mode temperature control section is many, and investment is large, heating element heater is installed complicated (especially inner to the roller that space is little), and adjacent sections is connected the bad control of temperature in region.If unsuitable Timeliness coverage, causes product quality problem when in Multi sectional, a certain section breaks down.Adopting and strengthening heat transfer layer thickness is also a kind of conventional method (such as thick baking pan pancake temperature is just more even), its shortcoming is: the weight and the cost that add device, reduce the installing space of roller inner heating device, blocked up metal surface also makes heat transfer efficiency and thermotonus speed greatly reduce.Hot pipe technique is adopted to be a reasonable technology of heat transfer uniformity effects, its shortcoming is: cost is high, the heating temperatures scope of application is little, and (in heat pipe, dielectric property limit, relevant with the gas-liquid inversion temperature of medium), have certain risk (exceed gas-liquid inversion temperature too high time, the pressure that causes of vaporizing easily causes blast).
Current, need improving constantly of the quality index of hot-working product, the temperature homogeneity of many products to equipment is had higher requirement, and original control temperature uniformity technology can not meet the new higher demand of user to unit temp uniformity due to effect and investment and security problems.
In prior art temperature homogeneity relatively better, with more several modes are:
1. thermal medium endless form.Fen Shui, oily different medium, utilize pump to circulate between heating system and roller by thermal medium, realizes the transmission of heat.The runner of roller divides one-way flow and the two-way different structure mode that flows in opposite directions.Advantage: temperature homogeneity can reach ± and about 1 DEG C.Shortcoming: need swivel joint, the rotatory sealing of swivel joint, by graphite annulus, inevitably will cause wearing and tearing and leak, and the water clock of oily thermal medium forms greasy dirt impact hygienic conditions around.Need distribution heating circulation system, cost is high, and floor space is large, and heat-exchange system equipment cooling causes ambient temperature high, and causes energy waste.Use oily loop heating system, conduction oil makes heating effect be deteriorated because of easy aging knot carbon, and within several years, just need more renew oil, operating cost is high.
2. the heat pipe samming mode as described in Chinese patent 201220737031.1.Heat pipe utilizes gas-liquid transforming principle to accomplish samming, and it pours into the material that heating can flash to gas in closed container, and after heating, heat is sent to rapidly release end of heat from heat absorbing end for gas by phase transformation distillation, reaches the effect of samming.Former for solve spacecraft to sun face (Zheng Ji Baidu high temperature) with the back of the body sun face (Fu Shang Baidu) temperature difference problem.After gradually for civilian, as heat radiation be used for computer CPU heat dissipating double-fuselage, heat transfer be used for waste heat recovery and roller samming etc.Advantage: 1. heat transfer efficiency is high, temperature homogeneity is good.2. structure is simple, and floor space is little, and cost is moderate.3. operating cost is low.Shortcoming: 1. a kind of liquid corresponding temperature scope is wide not, limits the serviceability temperature scope of equipment.2., during high temperature, hot overpressure is high, has unsafe factor, temperature control out of control be time have blast may.So, safety guard be had to reduce dangerous.3. high to sealing requirements, easily leak when HTHP, the minimizing of volatilised liq can make heat pipe failure.
3. direct mode of heating in roller, arranges several heating sources vertically in roller.Place thermal source in roller, thermal source divides multiple district independent temperature control.Roller outer wall is passed to again after allowing roller inwall obtain heat energy.Advantage: do not have gas-liquid thermal expansion to produce the unsafe problems of high pressure.Shortcoming: multistage temperature control make the thermometric of roller and temperature-control structure complicated.A certain section temperature control anomalous effects is overall.Trouble point is increased.Increase along the thermocouple hole that barrel bores and have deep hole, affecting the heat transfer uniformity of barrel.Subregion intersection homogeneous temperature sexual deviation is large, and temperature homogeneity is not very desirable.Even temperature effect makes up by increasing roller thickness, and roller material is increased, and weight strengthens, and heat transfer efficiency reduces, and in roller, space reduces.To pony roll because spatial volume is difficult to make not.Due to environmental requirement and cost problem, the roller of much steam and hot water, deep fat heating samming is all turning to electricity directly mode of heating, but main problem to be exactly temperature uniformity inadequate, temperature accuracy is ± 5 DEG C, as the patent of application number 201210135722.9.In prior art, have to reduce non-uniform temperature and interlayer oiling mode, without pump circulation, shortcoming is that the temperature difference is large, has oily heat to rise explosion danger, is specifically the Chinese patent of 201020522359.2 see application number.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of heat transfer temperature uniformity is good, cost is low, the life-span is long, safe and reliable heat transfer roller and heat-transferring method thereof, avoid the deficiencies in the prior art, to meet the demand that various product quality indicator promotes day by day to heat transfer roller temperature homogeneity.
For achieving the above object, the invention provides a kind of heat transfer roller having graphite intercalates, described heat transfer roller comprises: outer cylinder body, inner barrel and heating source, is characterized in that, described heat transfer roller also comprises graphite intercalates.
Preferably, described graphite intercalates is clamped between the heat transfer inner barrel of roller and outer cylinder body.
Preferably, described inner barrel and outer cylinder body are metal level.
Preferably, the graphite material of the various forms that the material of described graphite intercalates optional thermal conductivity is high.
Preferably, described graphite material is graphite flake.
Preferably, described graphite intercalates can accelerate temperature diffusion velocity in the in-plane direction, is distributed by the roller face uneven temperature that never uniform heat source obtains, realizes the even transmission of temperature after roller combination layer at another side.
Preferably, described graphite intercalates is three-decker, wherein:
Ground floor is the first overall graphite linings, and it contacts with the inner barrel of heat transfer roller, makes temperature distribution history more slow than the inner barrel temperature distribution history of heat transfer roller flat by the face heat transfer of the overall graphite linings of ground floor;
The second layer is the second graphite linings that thickness direction thermal conductivity is different, and this second graphite linings can make temperature curve slow flat further;
Third layer is the 3rd overall graphite linings, and it contacts with the outer cylinder body of heat transfer roll cartridge, makes temperature curve more slow flat, then passes to outer courage, obtain uniform surface temperature;
Described second graphite linings is between the first overall graphite linings and the 3rd overall graphite linings.
Preferably, make the tight docile of graphite linings on inner/outer tube body wall by the clamping force between inside and outside cylindrical shell, assembling tensioning mode comprise outer cylinder body hot charging undergauge or inner barrel mechanical tensioning expanding etc.
Preferably, graphite material is clamped in inside and outside metal and is closed between cylindrical shell, disengages with air, avoids graphite material at oxidation at high temperatures.
Preferably, described heat transfer roller can have multiple diameter, length and specification, can adopt different metal materials, can be used for heating and cooling.
For achieving the above object, the present invention also provides a kind of and uses the above-mentioned heat-transferring method having the heat transfer roller of graphite intercalates, it is characterized in that:
The uneven heat of inner barrel passes to the overall graphite linings of ground floor, makes temperature distribution history more slow than the temperature distribution history of inner bag flat by the face heat transfer of graphite;
Then pass to the second graphite linings that thickness direction thermal conductivity is different, make temperature curve slow flat further
And then pass to the 3rd overall graphite linings, make temperature curve more slow flat, then pass to outer cylinder body, obtain uniform surface temperature.
Preferably, described heat-transferring method, is characterized in that, the face thermal conductivity of graphite material is 200 ~ 5300 (w/mk), and temperature can be made to have high diffusion velocity in roll surface direction.
Preferably, described heat-transferring method, is characterized in that, the thermal conductivity of thickness direction is 15 ~ 400 (w/mk).
Preferably, for improving the heat transfer efficiency of heat transfer roll, described graphite intercalates material, except comprising graphite material, also includes the combination graphite material of one or more other materials that can improve thickness direction thermal conductivity.
Preferably, described heat-transferring method, is characterized in that thermal source comprises multiple heating mode, as medium fluid mode of heating, radiant heating pattern, Electromagnetic Heating mode etc.
Beneficial effect:
1, the temperature homogeneity of the heat transfer roll of graphite intercalates is adopted greatly to improve, structure is simple, and the graphite flake of high thermal conductivity (thermal conductivity of plane is 12 ~ 23 times of iron and steel) obtains conveniently, and expense is lower, the cost of heat transfer roll is reduced greatly, makes and greatly reduce with operating cost.
2, take full advantage of the characteristic that the plane thermal conductivity of graphite material is high, by combination superposition embedding technique make thickness thermal conductivity improve and evenly, solve graphite material high-temperature oxydation problem by closed interlayer mode.Life-span is longer, and the scope of application is wider.
What 3, improve graphite material can serviceability temperature, and the applied at elevated temperature having expanded the combination layer heat transfer roller having graphite linings is interval, at least can from normal temperature ~ 400 DEG C.
4, without heat-pipe medium, without pressure explosion danger, safer; Thermal medium is not had to reveal, environmentally-friendly sanitary; Electricity directly heats roller, does not have intermediate link to dispel the heat and consumes energy, green energy conservation.
5, trouble point is few, reliable, and maintenance cost is low, there is not the problem that thermal medium lost efficacy, need not more heat transferring medium, and operating cost is low.
Accompanying drawing explanation
Fig. 1 is a kind of axial, cross-sectional view with the heat transfer roller of graphite intercalates of the present invention.
Fig. 2 is a kind of view in transverse section with the heat transfer roller of graphite intercalates of the present invention.
Fig. 3 is a kind of axial component enlarged section with the heat transfer roller of graphite intercalates of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in detail.
Heat transfer roller and graphite intercalates
What Fig. 1 and Fig. 2 was exemplary shows a kind of heat transfer roller having graphite intercalates of the present invention, and described heat transfer roller comprises: outer cylinder body 1, inner barrel 2, graphite intercalates 3, infrared heating pipe 4.Described graphite intercalates 3 is clamped between the heat transfer inner barrel 2 of roller and outer cylinder body 1.Described inner barrel 2 and outer cylinder body 1 are metal level.
The graphite material of the various forms that material optional thermal conductivity of described graphite intercalates is high, is preferably graphite flake.Described graphite intercalates can accelerate temperature diffusion velocity in the in-plane direction, is distributed by the roller face uneven temperature that never uniform heat source obtains, realizes the even transmission of temperature after roller combination layer at another side.
Alternative, infrared heating heating tube 4, it is the one of heat source mode, other thermals source can be selected in addition, as electric heating tube mode, heat-conducting medium mode, Electromagnetic Heating mode etc., can require according to the concrete operating mode such as cleaning requirement, requirement of explosion proof, heating-up temperature height requirement, cost and user and determine.
Graphite intercalates has various ways in actual applications as required, to meet the needs of different temperatures required precision:
1. graphene layers mode: be the most easy form, structure is simple, and cost is low.
2. graphite linings stacked system: the different stacked combination between different graphite linings, the different stacked combination (also comprising the stack combinations with other Heat Conduction Materials) in zones of different between different graphite linings.
3. graphite linings inlays the mode of different thermal conductivity material: according to concrete specification and the technical requirement of heat conduction roller, have different materials to carry out different inlaying in graphite.Such as: have the material of different thermal conductivity to carry out inlaying, having the mosaic block of different area size to inlay, mosaic block different distributions quantity and density is had to carry out inlaying, having difform mosaic block to carry out inlaying etc.
Preferably, see Fig. 3, described graphite intercalates can be three-decker, wherein:
Ground floor is the first overall graphite linings 31, and it contacts with the inner barrel 2 of heat transfer roller, makes temperature distribution history more slow than the inner barrel temperature distribution history of heat transfer roller flat by the face heat transfer of the overall graphite linings 31 of ground floor; The second layer is the second graphite linings 32 that thickness direction thermal conductivity is different, and this second graphite linings 32 can make temperature curve slow flat further; Third layer is the 3rd overall graphite linings 33, and it contacts with the outer cylinder body 1 of heat transfer roll cartridge, makes temperature curve more slow flat, then passes to outer courage, obtain uniform surface temperature; Described second graphite linings position 32 is between the first overall graphite linings 31 and the 3rd overall graphite linings 33.
Make the tight docile of graphite intercalates layer on inside and outside metal barrel by the clamping force between inside and outside cylindrical shell 2 and 1, assembling tensioning mode comprise outer cylinder body hot charging undergauge or inner barrel mechanical tensioning expanding etc.
Graphite material is clamped in inside and outside metal and is closed between cylindrical shell 2 and 1, disengages, avoid graphite material at oxidation at high temperatures with air.
Graphite intercalates 3 will make full use of the characteristic that planar heat transfer rate is high and its thickness direction thermal conductivity is low of graphite flake, utilizes face high thermal conductivity to promote heat transference efficiency, utilize thickness direction thermal conductivity low come samming.Therefore graphite intercalates 3, simply can not adopt the combination of sandwich style, to adjust different thickness thermal conductivitys.Preferably, the combination of graphite linings comprises the middle graphite linings rule picture mosaic mode see Fig. 3, it should be noted that, is not limited thereto a kind of mode.The combination of graphite linings, comprises the regular and irregular connecting method of same substance and different material.
The face thermal conductivity of graphite material is preferably 200 ~ 5300 (w/mk), and temperature can be made to have high diffusion velocity in roll surface direction.The thermal conductivity of the thickness direction of graphite material is preferably 15 ~ 400 (w/mk).For improving the heat transfer efficiency of heat transfer roll, described graphite intercalates material, except comprising graphite material, also includes the combination graphite material of one or more other materials that can improve thickness direction thermal conductivity.
The graphite material that employing thickness direction thermal conductivity is different, the stacked and method for embedding of un-graphite materials make use of the heat shielding performance of graphite dexterously, allow the thickness thermal conductivity in near-thermal source reduce, and the thickness thermal conductivity of thermal source far away improves.Adjust the thermal conductivity size in the difference interval of graphite linings according to the specific requirement of user's roller flexibly, allow the effect that the uniformity of roll surface temperature reaches splendid.
Preferably, described heat transfer roller can have multiple diameter, length and specification, can adopt different metal materials, can be used for heating and cooling.
For achieving the above object, the present invention also provides a kind of and uses the above-mentioned heat-transferring method having the heat transfer roller of graphite intercalates, it is characterized in that:
The uneven heat of inner barrel passes to the overall graphite linings of ground floor, makes temperature distribution history more slow than the temperature distribution history of inner bag flat by the face heat transfer of graphite;
Then pass to the second graphite linings that thickness direction thermal conductivity is different, make temperature curve slow flat further
And then pass to the 3rd overall graphite linings, make temperature curve more slow flat, then pass to outer cylinder body, obtain uniform surface temperature.
The manufacture of heat transfer roller
Exemplarily property, can adopt following steps to manufacture heat transfer roller of the present invention:
(1) outer metal cylinder and interior metal cylinder is processed.
(2) graphite linings (or combination graphite linings) that placed side thermal conductivity is high between inside and outside metal cylinder.
(3) carry out the tensioner of inside and outside metal cylinder, adopt outer metal cylinder to heat the inside tensioner mode of suit shrinkage, or the outside mechanical tensioner mode of metal cylinder in opening.Graphite linings is fastened between inside and outside metal cylinder, together with the inner face of outer metal cylinder fits tightly with the outside of interior metal cylinder, obtains the combination layer metal sleeve of graphite intercalates.
(4) seal between interlayer centre being accompanied metal sleeve two ends inside and outside graphite linings, shape all-in-one-piece combination layer sleeve.
(5) the combination layer metal sleeve becoming to be integrated is manufactured roller by existing method and namely obtain the good heat transfer roller of cost low temperature uniformity effects.
(6) in roller, be provided with heating source, going to heat other article by the outer surface heat radiation of combination layer roller, is warm-up mill.Add low-temperature receiver in roller, roller outer surface absorbs the heat of other article, is chill roll.
Preferably, during fabrication, graphite linings is according to the difference of the specification, temperature range, temperature homogeneity requirement etc. of roller, and the structure that combination graphite linings is different, as Multi-layer graphite Rotating fields.
Finally to should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although be explained in detail the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (15)
1. have a heat transfer roller for graphite intercalates, described heat transfer roller comprises: outer cylinder body, inner barrel and heating source, is characterized in that, described heat transfer roller also comprises graphite intercalates.
2. conduct heat roller as claimed in claim 1, it is characterized in that, described graphite intercalates is clamped between the heat transfer inner barrel of roller and outer cylinder body.
3. conduct heat roller as claimed in claim 2, and it is characterized in that, described inner barrel and outer cylinder body are metal level.
4. conduct heat roller as claimed in claim 3, it is characterized in that, the graphite material of the various forms that material optional thermal conductivity of described graphite intercalates is high.
5. conduct heat roller as claimed in claim 4, it is characterized in that, described graphite material is graphite flake.
6. conduct heat roller as claimed in claim 5, it is characterized in that, described graphite intercalates can accelerate temperature diffusion velocity in the in-plane direction, is distributed by the roller face uneven temperature that never uniform heat source obtains, realizes the even transmission of temperature after roller combination layer at another side.
7. conduct heat roller as claimed in claim 1, it is characterized in that, described graphite intercalates is three-decker, wherein:
Ground floor is the first overall graphite linings, and it contacts with the inner barrel of heat transfer roller, makes temperature distribution history more slow than the inner barrel temperature distribution history of heat transfer roller flat by the face heat transfer of the overall graphite linings of ground floor;
The second layer is the second graphite linings that thickness direction thermal conductivity is different, and this second graphite linings can make temperature curve slow flat further;
Third layer is the 3rd overall graphite linings, and it contacts with the outer cylinder body of heat transfer roll cartridge, makes temperature curve more slow flat, then passes to outer courage, obtain uniform surface temperature;
Described second graphite linings is between the first overall graphite linings and the 3rd overall graphite linings.
8. the heat transfer roller as described in as arbitrary in claim 1-7, is characterized in that, make the tight docile of graphite linings on inner/outer tube body wall by the clamping force between inside and outside cylindrical shell, assembling tensioning mode comprise outer cylinder body hot charging undergauge or inner barrel mechanical tensioning expanding etc.
9. conduct heat roller as claimed in claim 8, and it is characterized in that, graphite material is clamped in inside and outside metal and is closed between cylindrical shell, disengages with air, avoids graphite material at oxidation at high temperatures.
10. conduct heat roller as claimed in claim 9, it is characterized in that, described heat transfer roller can have multiple diameter, length and specification, can adopt different metal materials, can be used for heating and cooling.
11. conduct heat roller as claimed in claim 10, and it is characterized in that, the face thermal conductivity of graphite material is 200 ~ 5300 (w/mk), and temperature can be made to have high diffusion velocity in roll surface direction.
12. conduct heat roller as claimed in claim 11, and it is characterized in that, it is characterized in that, the thermal conductivity of graphite material thickness direction is 15 ~ 400 (w/mk).
13. conduct heat roller as claimed in claim 12, and it is characterized in that, described graphite intercalates material, except comprising graphite material, also includes the combination graphite material of one or more other materials that can improve thickness direction thermal conductivity.
14. 1 kinds use the arbitrary described heat-transferring method having the heat transfer roller of graphite intercalates of the claims 1 to 13, it is characterized in that:
The uneven heat of inner barrel passes to the overall graphite linings of ground floor, makes temperature distribution history more slow than the temperature distribution history of inner bag flat by the face heat transfer of graphite;
Then pass to the second graphite linings that thickness direction thermal conductivity is different, make temperature curve slow flat further
And then pass to the 3rd overall graphite linings, make temperature curve more slow flat, then pass to outer cylinder body, obtain uniform surface temperature.
15. heat-transferring methods as claimed in claim 14, it is characterized in that, thermal source comprises multiple heating mode, as medium fluid mode of heating, radiant heating pattern, Electromagnetic Heating mode etc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510044677.XA CN104691027B (en) | 2015-04-16 | 2015-04-16 | A kind of heat transfer roller and its heat-transferring method for having graphite interlayer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510044677.XA CN104691027B (en) | 2015-04-16 | 2015-04-16 | A kind of heat transfer roller and its heat-transferring method for having graphite interlayer |
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| CN104691027A true CN104691027A (en) | 2015-06-10 |
| CN104691027B CN104691027B (en) | 2017-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486541A (en) * | 2018-06-01 | 2018-09-04 | 北京铂阳顶荣光伏科技有限公司 | Heat transfer roll |
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| JP2001265150A (en) * | 2000-03-18 | 2001-09-28 | Takao Kawamura | Heat transmission reinforced type quick heat roller and device using the same |
| CN201332518Y (en) * | 2009-02-05 | 2009-10-21 | 上海联净环保科技有限公司 | Electromagnetic heating roller apparatus |
| CN201844471U (en) * | 2007-10-22 | 2011-05-25 | 格拉弗技术国际控股有限公司 | Improved heat exchanger system |
| CN103342993A (en) * | 2013-06-26 | 2013-10-09 | 苏州天脉导热科技有限公司 | Composite material of graphite film and thermal interface material |
| CN204046852U (en) * | 2014-08-29 | 2014-12-24 | 上海联净电子科技有限公司 | A kind of electromagnetic induction heating roller |
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2015
- 2015-04-16 CN CN201510044677.XA patent/CN104691027B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| JP2001265150A (en) * | 2000-03-18 | 2001-09-28 | Takao Kawamura | Heat transmission reinforced type quick heat roller and device using the same |
| CN201844471U (en) * | 2007-10-22 | 2011-05-25 | 格拉弗技术国际控股有限公司 | Improved heat exchanger system |
| CN201332518Y (en) * | 2009-02-05 | 2009-10-21 | 上海联净环保科技有限公司 | Electromagnetic heating roller apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108486541A (en) * | 2018-06-01 | 2018-09-04 | 北京铂阳顶荣光伏科技有限公司 | Heat transfer roll |
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