CN203099219U - Heat insulation structure member of pipeline - Google Patents
Heat insulation structure member of pipeline Download PDFInfo
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- CN203099219U CN203099219U CN 201220584469 CN201220584469U CN203099219U CN 203099219 U CN203099219 U CN 203099219U CN 201220584469 CN201220584469 CN 201220584469 CN 201220584469 U CN201220584469 U CN 201220584469U CN 203099219 U CN203099219 U CN 203099219U
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Abstract
The utility model discloses a heat insulation structure member of a pipeline. The heat insulation structure member comprises one to six groups of heat insulation composite layers and fixing pieces, wherein the fixing pieces are steel wires, and the groups of heat insulation composite layers are sequentially coated on the peripheral surface of the pipeline from interior to exterior, and are bound and fixed on the pipeline by the steel wires in a group-by-group way. The independent heat insulation composite layer consists of an inner material laying layer and an outer aerogel heat insulation carpet layer. When the temperature of fluid in the pipeline is higher than 650 DEG C, the first group of heat insulation composite layer consists of an aluminum silicate fiber carpet layer and an aerogel heat insulation carpet layer. The heat insulation structure member has the advantage that in each group of heat insulation composite layer, the material laying layer is arranged in the inner side of the aerogel heat insulation carpet layer, and when the heat generated by the pipeline passes through the material laying layer and reaches the aerogel heat insulation carpet layer, the temperature is partially lowered, and the heat is further insulated by the aerogel heat insulation carpet layer, so the heat insulation effect is better.
Description
Technical field
The utility model relates to a kind of insulating structure spare, is specifically related to a kind of insulating structure spare of pipeline.
Background technique
The heat supply pipeline ubiquity the problem that heat loss is big, the thermal efficiency is low at present.In order to improve pipeline insulation level, reduce the thermal loss in the pipeline course of conveying, people seek novel thermal insulating material and insulating structure.
Chinese patent literature CN 201802998 U(application numbers 201020532813.2) a kind of seabed boundling steel pipe with nanometer titanium dioxide silica aerogel thermal insulation layer is disclosed, form by steel pipe, anticorrosive coat and nanometer titanium dioxide silica aerogel insulation quilt, the outer surface of steel pipe scribbles anticorrosive coat, coats by nanometer titanium dioxide silica aerogel insulation quilt at the outer surface of anticorrosive coat.
Chinese patent literature CN 202327524 U(application numbers 201120463394.6) a kind of overhead type steam conveying pipe is disclosed, include the interior working pipe, thermal insulation layer, fixing-assembly, the outer protective tube that from inside to outside are provided with successively, thermal insulation layer comprises external thermal insulation and inner thermal insulating layer, also is provided with the aluminium foil thermal reflecting coating between external thermal insulation and the inner thermal insulating layer; Described external thermal insulation is a hydrophobic hard polyaminoester thermal insulation layer, and inner thermal insulating layer is the aerosil thermal insulation layer.
The 3rd part of the 16th page to the 18th page the document of 2011 the 1st phases " petroleum and petrochemical industry is energy-conservation " " thick oil heat production steam injection pipeline novel energy-conserving thermal insulating material " also discloses the application of nanoporous aerogel thermal insulating material in the insulation of oil field gas injection pipeline, adopt complex reflex formula insulating structure, selecting silicate board or nanoporous aerogel blanket from inside to outside for use is the main body thermal insulating material, clad aluminum foil is made heat-reflecting layer, the outsourcing rubber plastic foam material.
Above-mentioned document all discloses the insulation that novel thermal insulating material aerosil insulation quilt is used for pipeline, but above-mentioned insulating structure is not all given full play to the thermal insulation property of aerogel thermal insulating material, especially for undesirable as heat insulation effects such as 800 ℃ of used steam conveying pipes of Ethyl Benzene Dehydrogenation Plant, thick oil heat production steam injection pipelines; For the former, the insulation of its steam conveying pipe is a difficult point always, because use traditional material, the surface area of thermal insulation layer is very big, and for example for the pipeline of DN273, traditional thermal insulation layer external diameter reaches 70cm, and the thermal insulation layer hull-skin temperature is still up to 80 ℃; For the latter, the steam injecting pipe system is the energy consumption rich and influential family in the thickened oil recovery process, accounts for 80% of thickened oil recovery total energy consumption, if the heat-energy losses of high temperature and high pressure steam in transportation process is bigger, then can further increase the energy consumption in the thickened oil recovery process.
The model utility content
Technical problem to be solved in the utility model provides a kind of good heat insulation effect structural member of pipeline.
The technological scheme that realizes the utility model purpose is a kind of insulating structure spare of pipeline, comprises insulating composite layer and fixed block; Fixed block is an iron wire; Insulating composite layer has 1～6 group; It is wrapped by group successively on the outer surface of pipeline according to order from the inside to the outside that each organizes insulating composite layer, and tie up by group by iron wire and to be fixed on the pipeline, also promptly the 1st group of insulating composite layer is wrapped on pipeline and tied up fixing by iron wire, the 2nd group of insulating composite layer is wrapped on the 1st group of insulating composite layer and tied up fixing by iron wire, continue thus, wrapped outside inferior on 1 group of insulating composite layer and tie up fixing by iron wire until 1 group of insulating composite layer of outermost; The insulating composite layer of each group is independent double-deck composite bed or non-independent two-layer compound layer; The double-deck composite bed of described independence is by the auxilliary material layer that is positioned at internal layer and be positioned at outer field aerogel insulation blanket layer and form; Described non-independent two-layer compound layer is the aerogel insulation blanket layer that is coated with one deck antiradiation coating at inner side surface.
When insulating composite layer is independent double-deck composite bed; The auxilliary material layer of each insulating composite layer be by auxilliary material according to circumferential overlap joint, the mode that axially flushes wrapped on the pipeline or wrapped being positioned on the inboard aerogel insulation blanket layer constitute; Each pipeline section that is provided with vertically that described circumferential overlap joint type is wrapped to be meant pipeline is overlapped in the connecting part at circumferential two ends behind the circle again and constitutes the corresponding one section auxilliary material layer of each insulating composite layer being positioned on the inboard aerogel insulation blanket layer fixing by iron wire around a circle or auxilliary material in wrapped mode by a corresponding auxilliary material, and described axially flushing between the wrapped axial end that is meant each adjacent Duan Fucai layer of formula is in contact with one another; The aerogel insulation blanket layer of each insulating composite layer also is wrapped on identical 1 group auxilliary material layer according to circumferential overlap joint, the mode that axially flushes, and is banded in by iron wire on the aerogel insulation blanket layer of each insulating composite layer.
The auxilliary material of above-mentioned auxilliary material layer is alumina silicate fibre blanket, rock wool blanket, the cotton felt of silicate, glass fiber mat, blanket of glass wool or aluminium foil.
As preferably, insulating composite layer has 2～6 groups; The 1st group of insulating composite layer is independent double-deck composite bed, and all the other are respectively organized insulating composite layer and are independent double-deck composite bed or non-independent two-layer compound layer.
Described non-independent two-layer compound layer is earlier radiation shielding coating to be sprayed on the inboard of aerogel insulation blanket to form antiradiation coating, treat that coating is dried after, the inboard that the aerogel insulation blanket is applied antiradiation coating is carried out wrapped.
Selectable, the material of the auxilliary material layer of the 1st group of insulating composite layer is glass fiber mat or blanket of glass wool or aluminium foil.
Selectable, the material of the auxilliary material layer of the 1st group of insulating composite layer is an alumina silicate fibre blanket.
Above-mentioned aerogel insulation blanket is the thermoinsulation material that is obtained through the compound back of heat resistance fiber skeletons such as ultra-fine fibre glass by aerogel, and thermal conductivity at normal temperatures is 0.012～0.023W/mK.
Above-mentioned aerogel is aerosil, alumina aerogels, titania aerogel, zirconia aerogels, or one or both or three kinds in the above-mentioned aerogel or four kinds of mixed gas gels that aerogel is formed.
When the temperature of pipeline inner fluid is higher than 650 ℃, 5～6 groups of insulating composite layers are set; When pipeline inner fluid temperature during, use 3 groups or 4 groups of insulating composite layers at 450 ℃～650 ℃; When pipeline inner fluid temperature during, use 2 groups or 3 groups of insulating composite layers at 300 ℃～450 ℃; When the temperature of pipeline inner fluid is lower than 300 ℃, 1 group or 2 groups of insulating composite layers are set.
Further, when the temperature of pipeline inner fluid was higher than 650 ℃, the auxilliary material of the auxilliary material layer of the 1st group of insulating composite layer was preferably alumina silicate fibre blanket.
The utlity model has positive effect:
(1) the insulating structure spare of pipeline of the present utility model is in the mode of pipeline external surface employing insulating composite layer stack use, according to the temperature of pipeline inner fluid and the group number of insulation requirement adjustment insulating composite layer.The temperature of pipeline inner fluid is high more or be incubated when having relatively high expectations the increase of the group number of the insulating composite layer of use; Usually when pipeline inner fluid temperature more than 650 ℃ the time, use 5 groups or 6 groups of insulating composite layers; When pipeline inner fluid temperature during, use 3 groups or 4 groups of insulating composite layers 500 ℃ of left and right sides; When pipeline inner fluid temperature during, use 2 groups or 3 groups of insulating composite layers 300 ℃ of left and right sides; When pipeline inner fluid temperature is lower than 300 ℃ of left and right sides, use 1 group or 2 groups of insulating composite layers.Adjust the group number of insulating composite layer during therefore on-the-spot the use according to actual conditions, can reach different insulation requirements.
For 800 ℃ of used steam conveying pipes of Ethyl Benzene Dehydrogenation Plant, for the DN273 pipeline, use 5 groups of insulating composite layers after, the thermal insulation layer hull-skin temperature drops to below 50 ℃, and the external diameter of thermal insulation layer 40cm only; On the other side, when the DN273 pipeline used traditional insulating structure, the external diameter of its thermal insulation layer reached 70cm, but the temperature of thermal insulation layer outer surface is up to 80 ℃.Therefore after using the aerogel material insulation, dwindling of steam conveying pipe thermal insulation layer diameter makes the external surface area of heat radiation will become 4/7 of traditional thermal-insulating scheme.
(2) each group insulating composite layer of the utility model insulating structure spare will be assisted the inboard that the material layer is placed on aerogel insulation blanket layer, temperature had reduced a part when the heat that pipeline distributes arrived aerogel insulation blanket layer through auxilliary material layer, further heat insulation by aerogel insulation blanket layer again, make that the effect of heat insulation of insulating structure spare of the present utility model is better; And the aerogel insulation blanket has the performance of impervious, cracking resistance, waterproof, resistance to compression, antidetonation, and it is arranged on skin, also can play the protective action to the auxilliary material layer of nexine.
(3) when the auxilliary material of first group of insulating composite layer is blanket of glass wool, glass fiber mat, aluminium foil, because it can reflect the thermal radiation of deep fat, hot water or hot steam in the pipeline, therefore with after the aerogel insulation blanket cooperates, these materials have strengthened the radiation resistance of insulating composite layer, and are better for the heat insulation effect of pipeline.
(4) when the auxilliary material of first group of insulating composite layer is alumina silicate fibre blanket, alumina silicate fibre blanket is filled between pipeline external surface and aerogel insulation blanket closely, eliminate the slit between aerogel insulation blanket and the pipeline external surface, pipeline external surface and extraneous space are isolated, and make heat distribution comparatively even, thereby provide prerequisite guaranteed conditions for the insulation effect of performance aerogel insulation blanket.
(5) the auxilliary material layer of insulating composite layer and aerogel insulation blanket layer are according to successively circumferentially the mode of overlap joint is wrapped on pipeline, be that the auxilliary circumferential overlap joint type of material layer of one deck is wrapped after on the pipeline, one deck aerogel insulation blanket layer is wrapped on auxilliary material layer with the circumferential lap-joint of the existing auxilliary material layer ground overlap joint type that staggers again; Compare with wrapped mode on pipeline of one deck aerogel insulation blanket layer while with the auxilliary material layer of one deck, the circumferential lap-joint of the insulating structure spare of pipeline of the present utility model staggers mutually, on the pipeline can thick especially place not appear because of the existence of circumferential lap-joint, therefore the thickness of insulating structure spare is even, by fixed block more consolidation, closely be fixed on the pipeline.
Description of drawings
Fig. 1 is the schematic representation of insulating structure spare of the present utility model, the Placement of the circumferential overlap joint of the insulating composite layer that do not draw among the figure;
Fig. 2 is the circumferential overlap joint schematic representation of one group of insulating composite layer of the insulating structure spare among Fig. 1;
Mark in the above-mentioned accompanying drawing is as follows: pipeline 1, insulating composite layer 2, aerogel insulation blanket layer 21, auxilliary material layer 22.
Embodiment
(embodiment 1)
See Fig. 1, the insulating structure spare of the pipeline of present embodiment comprises insulating composite layer 2 and fixed block.Fixed block is a galvanized wire.Insulating composite layer 2 has 1～6 group, and it is wrapped by group successively on the outer surface of pipeline 1 according to order from the inside to the outside that each organizes insulating composite layer 2, and is tied up by group by iron wire and to be fixed on the pipeline 1.Promptly the 1st group of insulating composite layer 2 is wrapped on pipeline 1 and tied up fixing by iron wire, the 2nd group of insulating composite layer 2 is wrapped on the 1st group of insulating composite layer 2 and tied up fixing by iron wire, continue thus, wrapped outside inferior on 1 group of insulating composite layer 2 and tie up fixing by iron wire until 1 group of insulating composite layer of outermost 2.Fluid in the described pipeline 1 is conduction oil, hot water or steam, and particularly, pipeline 1 is the conduction oil delivering pipe, or steam line, or the delivery pipeline.For heat conducting oil pipe, the temperature of the conduction oil of transportation is 200 ℃～300 ℃ usually; For steam line, the vapor (steam) temperature of transportation is 200 ℃～300 ℃ usually, but 800 ℃ high-temperature steam, for example 800 ℃ of used steam conveying pipes of Ethyl Benzene Dehydrogenation Plant are also arranged.
The quantity of the setting of insulating composite layer 2 just changes according to the temperature of pipeline 1 inner fluid, when the temperature of pipeline 1 inner fluid is higher than 650 ℃, 5～6 groups of insulating composite layers 2 is set; When pipeline inner fluid temperature is 450 ℃～650 ℃, use 3 groups or 4 groups of insulating composite layers; When pipeline inner fluid temperature during, use 2 groups or 3 groups of insulating composite layers at 300 ℃～450 ℃; When the temperature of pipeline 1 inner fluid is lower than 300 ℃, 1 group or 2 groups of insulating composite layers 2 are set.Certainly, the quantity of above-mentioned insulating composite layer 2 can further be adjusted according to the heat insulation effect and the employed ambient conditions of requirements for pipes, when heat insulation effect of having relatively high expectations or employed environment are severe cold area, increase and uses 1～2 group of insulating composite layer 2.The insulating composite layer 2 of above-mentioned each group is independent double-deck composite bed or non-independent two-layer compound layer.
See Fig. 2, the double-deck composite bed 2 of described independence is by the auxilliary material layer 22 that is positioned at internal layer and be positioned at outer field aerogel insulation blanket layer 21 and form.
The auxilliary material layer 22 of insulating composite layer 2 be by auxilliary material according to circumferential overlap joint, the mode that axially flushes wrapped on the pipeline 1 or wrapped being positioned on the inboard aerogel insulation blanket layer 21 constitute.Each pipeline section that is provided with vertically that described circumferential overlap joint type is wrapped to be meant pipeline 1 is overlapped in the connecting part at circumferential two ends behind the circle again and constitutes the corresponding one section auxilliary material layer 22 of each insulating composite layer 2 being positioned on the inboard aerogel insulation blanket layer 21 fixing by iron wire around a circle or auxilliary material in wrapped mode by a corresponding auxilliary material.Described axially flushing between the wrapped axial end that is meant each adjacent Duan Fucai layer 22 of formula is in contact with one another.
The aerogel insulation blanket layer 21 of each insulating composite layer 2 also is wrapped on identical 1 group auxilliary material layer 22 according to circumferential overlap joint, the mode that axially flushes, and is banded in by iron wire on the aerogel insulation blanket layer 21 of each insulating composite layer 2.
Described non-independent two-layer compound layer is the aerogel insulation blanket layer that is coated with one deck antiradiation coating at inner side surface.Non-independent two-layer compound layer is earlier radiation shielding coating to be sprayed on the inboard of aerogel insulation blanket 21 to form antiradiation coating, treat that coating is dried after, carry out the inboard that aerogel insulation blanket 21 applies antiradiation coatings wrapped.Non-independent two-layer compound layer does not use as first group of insulating composite layer.
Described aerogel insulation blanket 21 is the thermoinsulation materials that obtained through the compound back of heat resistance fiber skeletons such as ultra-fine fibre glass by aerogel, and thermal conductivity at normal temperatures is 0.012～0.023W/mK.
Aerogel wherein can be aerosil, alumina aerogels, titania aerogel, zirconia aerogels, also can be one or both or three kinds or four kinds of mixed gas gels that aerogel is formed in the above-mentioned aerogel.Though the aerogel kind difference of more than addressing, but the general character with aerogel comprises that nanometer hole separately is the gas-solid interface that air, solid constituent are few, skeleton is fine, heat conduction path is elongated and inner existence is a large amount of less than the air molecule free path, up to the composition more than 80%.Present embodiment is employed to be aerosil insulation blanket 21.
The auxilliary material of described auxilliary material layer 22 is alumina silicate fibre blanket, rock wool blanket, the cotton felt of silicate, glass fiber mat, blanket of glass wool or aluminium foil.When aerogel insulation blanket layer 21 and auxilliary material layer 22 were formed one group of insulating composite layer 2, different types of aerogel insulation blanket and different types of auxilliary material can be arbitrarily made with one group of insulating composite layer 2.
Because the width of the aerogel insulation blanket coiled material on the market has only 750mm usually, 910mm, 1200mm, models such as 1450mm, and construction the time is with the width of aerogel insulation blanket coiled material as the axial length of once constructing after pipeline 1 is wrapped, when therefore laying aerogel insulation blanket layer 21, be in the form of taking to flush with the axial end of adjacent two sections aerogel insulation blanket layers 21 of one deck on the pipeline 1, it is wrapped after on the auxilliary material 22 to be about to circumferential overlap joint type of cutting out of aerogel insulation blanket, when following a wrapped back aerogel insulation blanket of cutting out, the axial end of two aerogel insulation blankets is in contact with one another.Same, for auxilliary material layer 22, be in contact with one another being between the axial end with adjacent two sections auxilliary material layers 22 of one deck on the pipeline 1.Thereby the auxilliary material layer 22 of one deck has been formed one group of insulating composite layer 2 with one deck aerogel insulation blanket layer 21 on pipeline 1.After having laid first group of insulating composite layer 2, lay next group during insulating composite layer 2, the circumferential lap-joint that the auxilliary material layer 22 and the aerogel insulation blanket of this group is 21 layers all with pipeline 1 on existing circumferential lap-joint stagger mutually; Simultaneously, also all stagger with the existing axially place of flushing mutually in the axially place of flushing of the axially place of flushing of the auxilliary material 22 of second group of insulating composite layer 2 and aerogel insulation blanket 21.
The auxilliary material layer 22 of insulating composite layer 2 and aerogel insulation blanket layer 21 are that longitudinal lap joint formula successively is wrapped on pipeline, the auxilliary material layer 22 longitudinal lap joint formula of one deck are wrapped behind pipeline, and one deck aerogel insulation blanket layer 21 staggers with existing circumferential lap-joint again, and the ground overlap joint type is wrapped is assisting on the material; Compare with wrapped mode on pipeline of one deck aerogel insulation blanket while with the auxilliary material of one deck, the lap-joint of the insulating structure spare of the pipeline of present embodiment staggers mutually, on the pipeline thick especially place can not appear because of the existence of lap-joint, therefore the thickness of insulating structure spare is even, by fixed block more consolidation, closely be fixed on the pipeline.
When present embodiment is incubated high-temperature steam delivering pipe 1, lay 5 groups of insulating composite layers 2 from inside to outside successively.Inboard first group of insulating composite layer 2 is made up of 25mm thick alumina silicate fibre blanket and the thick high temperature modification aerogel insulation blanket of 6mm, earlier with alumina silicate fibre blanket according to circumferential overlap joint, the wrapped periphery of mode that axially flushes at pipeline 1, tie up with the 14# galvanized wire wrapped back, makes that alumina silicate fibre blanket is compacted, compacting is on the outer surface of pipeline 1.Tie up spacing less than 200mm, tying up iron wire and must not be less than twice on every alumina silicate fibre blanket, degree of tightness is even when tying up, the thickness unanimity; Then that 6mm is thick high temperature modification aerogel insulation blanket is according to circumferential overlap joint, the wrapped installation of finishing first group of insulating composite layer 2 on alumina silicate fibre blanket of mode that axially flushes, the means of fixation of aerogel insulation blanket is identical with the means of fixation of above-mentioned alumina silicate fibre blanket, and following auxilliary material 22 and the aerogel insulation blanket 21 of respectively organizing insulating composite layer 2 all adopts the mode of successively tying up with iron wire to fix.The used alumina silicate fibre blanket of present embodiment is the standard type alumina silicate fibre blanket that Shandong Luyang share co.,ltd makes, and its thickness is 25 millimeters.The used high temperature modification aerogel insulation blanket of present embodiment is the aerosil insulation blanket, and its thickness is 6 millimeters, for following day RunAG650 type aerogel insulation blanket of energy-conservation Science and Technology Ltd. manufacturing in Changzhou.This aerogel insulation blanket can anti-650 ℃ high temperature.
Second group of insulating composite layer 2 is made up of 3mm thick glass fiber mat and the thick high temperature modification aerogel insulation blanket of 6mm, and earlier that 3mm is thick glass fiber mat is wrapped above the high temperature modification aerogel insulation blanket of first group of insulating composite layer 2 according to circumferential overlap joint, the mode that axially flushes; Then that 6mm is thick high temperature modification aerogel insulation blanket is according to circumferential overlap joint, the wrapped installation of finishing second group of insulating composite layer 2 on glass fiber mat of mode that axially flushes.The used glass fiber mat of present embodiment is the Wuxi thick glass fibre cotton felt of 3mm that glass fibre Science and Technology Ltd. makes of winning victory.
The 3rd group of thermal insulating material with the 4th group of insulating composite layer 2 is identical with second group thermal insulating material, and wrapped mode is also identical.
The 5th group of insulating composite layer 2 is made up of 3mm thick glass fiber mat and the thick middle warm type aerogel insulation blanket of 6mm, earlier that glass fiber mat is wrapped above the high temperature modification aerogel insulation blanket of the 4th group of insulating composite layer 2 according to circumferential overlap joint, the mode that axially flushes, then that the middle warm type aerogel insulation blanket of the 5th group of insulating composite layer 2 is wrapped on glass fiber mat according to circumferential overlap joint, the mode that axially flushes.The used middle warm type aerogel insulation blanket of present embodiment is the aerosil insulation blanket, follows day RunAG380 type aerogel insulation blanket of energy-conservation Science and Technology Ltd. manufacturing for Changzhou, and this aerogel insulation blanket can anti-380 ℃ high temperature.
In the whole wrapped process, guarantee that existing lap-joint staggers mutually on lap-joint that the back occurs and the pipeline 1; The place of flushing that the back occurs also with pipeline 1 on the existing place of flushing stagger.During concrete the installation, at first cut out the aerogel insulation blanket 21 and the auxilliary material 22 of respective length according to the girth of the pipeline of measuring, the length of aerogel insulation blanket 21 and auxilliary material 22 is than the long 40mm of the girth of pipeline, to guarantee that the joint can overlap.
After five groups of insulating composite layers 2 are laid and finished, check the airtight quality situation at seam crossing, edge, valve place, see that whether these positions are in conjunction with closely knit firm.
The pipeline that the is provided with above-mentioned insulating structure line that puts into production is used, and the external diameter of the thermal insulation layer of pipeline 1 is 40cm, and the temperature of thermal insulation layer outer surface drops to 45 ℃ by original 80 ℃, and ambient temperature is 20 ℃.
As seen after using the aerogel material insulation, dwindling of steam conveying pipe thermal insulation layer diameter makes the external surface area of heat radiation will become 4/7 of traditional thermal-insulating scheme, and this just further reduces the heat dissipating capacity of pipeline.
Present embodiment is that alumina silicate fibre blanket and aerogel insulation blanket are formed first group of insulating composite layer use, because alumina silicate fibre blanket packing ratio between pipeline external surface and aerogel insulation blanket is tightr, eliminate the slit between aerogel insulation blanket and the pipeline external surface, pipeline external surface and extraneous space are isolated, and make heat distribution comparatively even, therefore the insulation effect for performance aerogel insulation blanket provides prerequisite guaranteed conditions.When the temperature of pipeline 1 inner fluid was higher than 650 ℃, the material of the auxilliary material layer 22 of the 1st group of insulating composite layer 2 was preferably alumina silicate fibre blanket.Heat has dropped to below 650 ℃ during through the heat insulation arrival high temperature modification aerogel insulation blanket of alumina silicate fibre blanket, therefore can not influence the heat-shielding performance of high temperature modification aerogel insulation blanket.Each group insulating composite layer of insulating structure spare of the present utility model will be assisted the inboard that the material layer is placed on aerogel insulation blanket layer, temperature had reduced a part when the heat that pipeline distributes arrived aerogel insulation blanket layer through auxilliary material layer, further heat insulation by aerogel insulation blanket layer again, make that the effect of heat insulation of insulating structure spare of the present utility model is better.
(embodiment 2)
All the other are identical with embodiment 1 for the insulating structure spare of the pipeline of present embodiment, and difference is: the pipeline 1 of present embodiment when steam delivering pipe 1 is incubated, is laid 3 groups of insulating composite layers 2 for the pipeline of 300 ℃ of steam of transportation from inside to outside successively.
Inboard first group of insulating composite layer 2 is made up of 3mm thick glass fiber mat and the thick high temperature modification aerogel insulation blanket of 6mm.Second group of insulating composite layer 2 is made up of 25mm thick alumina silicate fibre blanket and the thick high temperature modification aerogel insulation blanket of 6mm.The 3rd group of insulating composite layer 2 is made up of 3mm thick glass fiber mat and the thick middle warm type aerogel insulation blanket of 6mm.
Because glass fiber mat can reflect the thermal radiation of steam in the pipeline, therefore with after the aerogel insulation blanket cooperates, glass fiber mat has strengthened the radiation resistance of insulating composite layer, and is better for the heat insulation effect of pipeline.Similar to glass fiber mat, blanket of glass wool, aluminium foil also can reflect the thermal radiation of steam in the pipeline, therefore also blanket of glass wool or aluminium foil and aerogel insulation blanket can be formed first group of insulating composite layer and use.
(embodiment 3)
All the other are identical with embodiment 1 for the insulating structure spare of the pipeline of present embodiment, and difference is: the pipeline of present embodiment when steam delivering pipe 1 is incubated, is laid 3 groups of insulating composite layers 2 for the pipeline of 300 ℃ of steam of transportation from inside to outside successively.
First group of insulating composite layer 2 is made up of 25mm thick alumina silicate fibre blanket and the thick high temperature modification aerogel insulation blanket of 6mm; Second group of insulating composite layer 2 is made up of 3mm thick glass fiber mat and the thick high temperature modification aerogel insulation blanket of 6mm; The 3rd group of insulating composite layer 2 is made up of 3mm thick glass fiber mat and the thick middle warm type aerogel insulation blanket of 6mm.
Claims (9)
1. the insulating structure spare of a pipeline is characterized in that: comprise insulating composite layer (2) and fixed block; Fixed block is an iron wire; Insulating composite layer (2) has 1～6 group; It is wrapped by group successively on the outer surface of pipeline (1) according to order from the inside to the outside that each organizes insulating composite layer (2), and tie up by group by iron wire and to be fixed on the pipeline (1), also promptly the 1st group of insulating composite layer (2) is wrapped goes up and is tied up fixing by iron wire at pipeline (1), the 2nd group of insulating composite layer (2) is wrapped to be gone up and is tied up fixing by iron wire at the 1st group of insulating composite layer (2), continue thus, wrapped inferior outside on 1 group of insulating composite layer (2) and tie up fixing by iron wire until 1 group of insulating composite layer of outermost (2); The insulating composite layer (2) of each group is independent double-deck composite bed or non-independent two-layer compound layer; The double-deck composite bed of described independence is by the auxilliary material layer (22) that is positioned at internal layer and be positioned at outer field aerogel insulation blanket layer (21) and form; Described non-independent two-layer compound layer is the aerogel insulation blanket layer that is coated with one deck antiradiation coating at inner side surface.
2. the insulating structure spare of pipeline according to claim 1 is characterized in that: insulating composite layer (2) is independent double-deck composite bed; The auxilliary material layer (22) of each insulating composite layer (2) is to be gone up or wrappedly go up and constitute being positioned at inboard aerogel insulation blanket layer (21) at pipeline (1) according to circumferential overlap joint, the mode that axially flushes are wrapped by auxilliary material; Each pipeline section that is provided with vertically that described circumferential overlap joint type is wrapped to be meant pipeline (1) is gone up and is overlapped in the connecting part at circumferential two ends behind the circle again and constitute the corresponding one section auxilliary material layer (22) of each insulating composite layer (2) being positioned at the inboard fixing aerogel insulation blanket layer (21) by iron wire around a circle or auxilliary material in wrapped mode by a corresponding auxilliary material, and described axially flushing between the wrapped axial end that is meant each adjacent Duan Fucai layer (22) of formula is in contact with one another; The aerogel insulation blanket layer (21) of each insulating composite layer (2) also is wrapped on identical 1 group auxilliary material layer (22) according to circumferential overlap joint, the mode that axially flushes, and is banded in by iron wire on the aerogel insulation blanket layer (21) of each insulating composite layer (2).
3. the insulating structure spare of pipeline according to claim 2 is characterized in that: the auxilliary material of described auxilliary material layer (22) is alumina silicate fibre blanket, rock wool blanket, the cotton felt of silicate, glass fiber mat, blanket of glass wool or aluminium foil.
4. the insulating structure spare of pipeline according to claim 1, it is characterized in that: insulating composite layer (2) has 2～6 groups; The 1st group of insulating composite layer (2) is independent double-deck composite bed, and all the other are respectively organized insulating composite layer (2) and are independent double-deck composite bed or non-independent two-layer compound layer.
5. the insulating structure spare of pipeline according to claim 4, it is characterized in that: non-independent two-layer compound layer is earlier radiation shielding coating to be sprayed on the inboard of aerogel insulation blanket (21) to form antiradiation coating, after treating that coating is dried, the inboard that aerogel insulation blanket (21) is applied antiradiation coating is carried out wrapped.
6. the insulating structure spare of pipeline according to claim 3, it is characterized in that: the material of the auxilliary material layer (22) of the 1st group of insulating composite layer (2) is glass fiber mat or blanket of glass wool or aluminium foil.
7. the insulating structure spare of pipeline according to claim 3, it is characterized in that: the material of the auxilliary material layer (22) of the 1st group of insulating composite layer (2) is an alumina silicate fibre blanket.
8. the insulating structure spare of pipeline according to claim 3 is characterized in that: when the temperature of pipeline (1) inner fluid is higher than 650 ℃, 5～6 groups of insulating composite layers (2) are set; When pipeline inner fluid temperature during, use 3 groups or 4 groups of insulating composite layers at 450 ℃～650 ℃; When pipeline inner fluid temperature during, use 2 groups or 3 groups of insulating composite layers at 300 ℃～450 ℃; When the temperature of pipeline (1) inner fluid is lower than 300 ℃, 1 group or 2 groups of insulating composite layers (2) are set.
9. the insulating structure spare of pipeline according to claim 8, it is characterized in that: when the temperature of pipeline (1) inner fluid was higher than 650 ℃, the auxilliary material of the auxilliary material layer (22) of the 1st group of insulating composite layer (2) was an alumina silicate fibre blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584469 CN203099219U (en) | 2012-11-06 | 2012-11-06 | Heat insulation structure member of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584469 CN203099219U (en) | 2012-11-06 | 2012-11-06 | Heat insulation structure member of pipeline |
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| Publication Number | Publication Date |
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| CN203099219U true CN203099219U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220584469 Withdrawn - After Issue CN203099219U (en) | 2012-11-06 | 2012-11-06 | Heat insulation structure member of pipeline |
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| CN (1) | CN203099219U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383053A (en) * | 2012-11-06 | 2013-11-06 | 常州循天节能科技有限公司 | Heat-insulating structural part for pipeline |
| CN103807568A (en) * | 2013-12-20 | 2014-05-21 | 潍坊纳博欧化工科技有限公司 | Nanometer micropore heat insulation board and manufacturing method thereof |
| CN106499903A (en) * | 2016-12-27 | 2017-03-15 | 哈尔滨朗格思特供热装备科技有限公司 | Superhigh temperature prefabricated direct-buried thermal insulation pipe part elbow and production application process |
| CN106931278A (en) * | 2015-12-31 | 2017-07-07 | 深圳市纳能科技有限公司 | Thermal insulation separation hot jacket and hot box |
| CN109027525A (en) * | 2018-09-11 | 2018-12-18 | 铜陵有色建安防水防腐有限责任公司 | A kind of aerial thermal insulating structure of steam pipeline and its construction method |
-
2012
- 2012-11-06 CN CN 201220584469 patent/CN203099219U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383053A (en) * | 2012-11-06 | 2013-11-06 | 常州循天节能科技有限公司 | Heat-insulating structural part for pipeline |
| CN103383053B (en) * | 2012-11-06 | 2016-04-13 | 常州循天节能科技有限公司 | The insulating structure part of pipeline |
| CN103807568A (en) * | 2013-12-20 | 2014-05-21 | 潍坊纳博欧化工科技有限公司 | Nanometer micropore heat insulation board and manufacturing method thereof |
| CN103807568B (en) * | 2013-12-20 | 2015-12-02 | 潍坊纳博欧化工科技有限公司 | A kind of nanometer micropore heat insulating thermal preserving board and preparation method thereof |
| CN106931278A (en) * | 2015-12-31 | 2017-07-07 | 深圳市纳能科技有限公司 | Thermal insulation separation hot jacket and hot box |
| CN106499903A (en) * | 2016-12-27 | 2017-03-15 | 哈尔滨朗格思特供热装备科技有限公司 | Superhigh temperature prefabricated direct-buried thermal insulation pipe part elbow and production application process |
| CN109027525A (en) * | 2018-09-11 | 2018-12-18 | 铜陵有色建安防水防腐有限责任公司 | A kind of aerial thermal insulating structure of steam pipeline and its construction method |
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