CN203477765U - Expanded perlite heat-insulated pipe shell provided with heat reflection cavity - Google Patents
Expanded perlite heat-insulated pipe shell provided with heat reflection cavity Download PDFInfo
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- CN203477765U CN203477765U CN201320617946.3U CN201320617946U CN203477765U CN 203477765 U CN203477765 U CN 203477765U CN 201320617946 U CN201320617946 U CN 201320617946U CN 203477765 U CN203477765 U CN 203477765U
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- heat
- pipe insulation
- reflection cavity
- expanded perlite
- heat reflection
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Abstract
The utility model discloses an expanded perlite heat-insulated pipe shell provided with a heat reflection cavity and a production method for the expanded perlite heat-insulated pipe shell provided with the heat reflection cavity and relates to the improvement on an expanded perlite heat-insulated pipe shell structure. The expanded perlite heat-insulated pipe shell provided with the heat reflection cavity is high in efficiency, capable of saving energy, good in heat-preservation effect and simple in structure, comprises a heat-insulated pipe shell body and is characterized in that the inner wall of the longitudinal section of the heat-insulated pipe shell body is of a concave-convex structure and a heat reflection film is arranged on the surface of the inner wall.
Description
Technical field
the utility model relates to the improvement of expansion pearlite thermal insulation shell structure.
Background technique
perlite is a kind of natural acidic glassiness slag, and due under 1000 ℃～1300 ℃ high temperature conditions, its volume expands 10～20 times rapidly, therefore be referred to as expanded perlite.General Requirements expansion multiple >10～16 times, can be used as the carrier of filtering agent, catalyzer, molecular sieve and rubber, chemical fertilizer, agricultural chemicals; Be widely used in the departments such as building, metallurgy, oil, machinery, light industry, water power, casting, medicine, food, agricultural gardening.Common expansion pearlite thermal insulation shell is that to take cement or sodium silicate be adhesive, after mixing, by mould, is pressed into the round casing that 2～3 arc body parts form.The pipe insulation shell of producing according to conventional production technology, in order to reduce thermal conductivity, reduces the density of shell, but compressive strength is simultaneously also along with decline, and product damaged corner phenomenon in transportation process is more serious, and the heat loss of pipe insulation shell is increased.
the precedent that pipe insulation shell joint is sewn into ladder or concaveconvex structure has, adding man-hour, composition round casing parts joint face is provided with to concavo-convex interface, structurally really can reduce the heat loss that pipe insulation shell is produced by seam, but due to the existence of insulated shell convex structure, more increased the weight of the phenomenon of damaged corner in the middle of transportation.
with aluminium foil, as heat insulating reflecting mould, there are being a lot of application examples.The method of using on high-temperature pipe is: first alumina silicate felt or rock wool are directly wrapped on pipeline, then Aluminium Foil Package is rolled in to the skin of alumina silicate felt or rock wool, aluminium foil is residing is not the position of maximum temperature, make the reverberation of aluminium foil pass to alumina silicate felt or rock wool, although alumina silicate felt or rock wool thermal conductivity are less, but due to the heat reflection effect of aluminium foil, make to be in the alumina silicate felt of high temperature or rock wool thermal conductivity along with temperature raises and can increase on the contrary.This method is almost that the heat reflection effect of aluminium foil and thermal insulation layer thermal conductivity are increased and cancelled out each other along with temperature rising.Not only can not give full play of the due heat-reflecting effect of aluminium foil, but also make aluminium foil thermometer surface temperature reach in a short period of time pipe temperature.
utilize air layer to be applied to every field as thermal insulating material, by air layer, Cui thickness 50mm calculates: the heat conductivity number when 0 ℃ of air layer is 0.024W/(M.K); Heat conductivity number when 25 ℃ of air layers is 0.0256W/(M.K); Heat conductivity number when 200 ℃ of air layers is 0.0384W/(M.K).But, be applied in building field, the air layer that can meet the Cui thickness of 50MM is limited, if the more important thing is, with the air layer thickness of thermoinsulation material setting, keeping off its effect of 50mm will be close to zero, particularly, under high temperature condition, its heat transfer rate of air layer that thermoinsulation material arranges is faster than thermoinsulation material.
Summary of the invention
the utility model is exactly for the problems referred to above, and a kind of energy-efficient, high insulating effect and expansion pearlite thermal insulation shell simple in structure are provided.
for achieving the above object, the utility model adopts following technological scheme, and the utility model expansion pearlite thermal insulation shell comprises pipe insulation body, and its structure outline pipe insulation body longitudinal section inwall is concaveconvex structure, and described inner wall surface is provided with thermal reflecting coating.
as another kind of preferred version, pipe insulation body described in the utility model is comprised of two or three arc split docking, and arc split interface correspondence is provided with sealed groove, is provided with the first Sealing in the enclosed space that sealed groove surrounds.
as another kind of preferred version, pipe insulation body described in the utility model one side bottom surface Shang Yi bottom center is that the center of circle is provided with circular projection, and pipe insulation body opposite side bottom surface is provided with slot corresponding to circular projection; Between the circular projection in adjacent pipe insulation body bottom surface and slot, accompany the second Sealing.
secondly, the cup depth of described concaveconvex structure is 5mm～10mm, the recess width of concaveconvex structure is non-recess width 2～10 times.
in addition, the concave shape of concaveconvex structure described in the utility model is isosceles trapezoid, the nonpitting lineal shape that is shaped as.
the production method of the utility model expansion pearlite thermal insulation shell comprises the following steps.
1) expanded perlite and adhesive are mixed into mixture.
2) mixture is packed into forming machine moulding box, the pipe insulation that compacting inwall is concaveconvex structure.
3) after the demoulding, then drying is finished product.
as a kind of preferred version, step 3) described in the utility model is pasted aluminium foil or brushing paint in the inner wall surface of finished product pipe insulation.
as another kind of preferred version, step 2 described in the utility model) adopt bidirectional hydraulic press to pressure surface type, when pipe insulation density, set and be greater than 180kg/m
3
be less than or equal to 200 kg/m
3
time, select and be more than or equal to 80 kilograms every cubic metre of 80#(density) be less than 90 kilograms every cubic metre of 90#(density) expanded perlite, compression ratio is 1.6:1～2.0:1, the pipe insulation that expanded perlite is 2.0 cubic metres～2.2 cubic metres/cubic metre, the pipe insulation of adhesive 120kg～150kg/ cubic meter.
when pipe insulation density, set and be greater than 200 kg/m
3
be less than or equal to 250 kg/m
3
time, to select to be more than or equal to 80# and to be less than or equal to 90# expanded perlite, compression ratio is 1.8:1～2.0:1, the pipe insulation that expanded perlite is 2.0 cubic metres～2.2 cubic metres/cubic metre, the pipe insulation of adhesive 135kg/ cubic meter.
when pipe insulation density is set in 350kg kg/m
3
time, select 90# expanded perlite, compression ratio is 2.5:1, the pipe insulation that expanded perlite is 2.8 cubic metres/cubic metre, the pipe insulation of adhesive 145kg/ cubic meter.
secondly, adhesive described in the utility model is pressed mass fraction and is comprised of 2～4 parts of 100 parts of high mould water glass, 2～3 parts of organic acids (pH value 4～5), 0.2～0.6 part of prodan, 0.2～0.5 part of white glue with vinyl, 0～2 part of bentonite clay, waterproofing agent of organosilicon; The making method of adhesive is: add successively high mould water glass, organic acid, prodan, white glue with vinyl, bentonite clay high-speed stirred and add waterproofing agent of organosilicon after 15～20 minutes, then stir and at once can use for 5 minutes.
in addition, 100 parts of high mould water glass described in the utility model, 3 parts of organic acids, 0.2 part of prodan, 0.2 part of white glue with vinyl, 1 part of bentonite clay, 3 parts of waterproofing agent of organosilicon, adhesive is mixed with the pipe insulation expanded perlite of 2.2 cubic metres/cubic metre, with the compression ratio compression of 2:1, dry through the temperature of 110 ℃～200 ℃.
the utility model beneficial effect.
the utility model pipe insulation body longitudinal section inwall is concaveconvex structure, and inner wall surface is provided with thermal reflecting coating; The depression of some concaveconvex structures of this structure is equivalent to be provided with at inner wall of tube shell the cavity of thermal reflecting coating, there is the pipe insulation of thermal reflecting coating cavity to compare with the homogeneity pipe insulation without thermal reflecting coating sky, in pipeline thermal medium temperature, be under 200 ℃～300 ℃ conditions, the temperature of cavity wall is low 5 ℃～and 10 ℃; Significantly reduce the heat-transfer coefficient of heat insulation layer, improve heat preservation and energy conservation effects; Solved A level fire-retardant heat-insulation material large problem of heat loss in hot pipeline application for a long time.
in addition, inwall adopts concaveconvex structure to save the consumption of expanded perlite, has reduced heat insulation layer overall weight; Cost is low, be easy to promote.
Accompanying drawing explanation
below in conjunction with the drawings and specific embodiments, the utility model is described further.The utility model protection domain is not only confined to the statement of following content.
fig. 1 is the utility model expansion pearlite thermal insulation shell structure schematic diagram.
fig. 2 is the plan view of Fig. 1.
in figure, 1 is that circular projection, 2 is that sealed groove, 3 is that thermal reflecting coating, 4 is that depression, 5 is that non-depression, 6 is slot.
Embodiment
as shown in the figure, the utility model expansion pearlite thermal insulation shell comprises pipe insulation body, and pipe insulation body longitudinal section inwall is concaveconvex structure, and described inner wall surface is provided with thermal reflecting coating 3.
described thermal reflecting coating 3 adopts aluminium foil or silvery-white finish (can be aluminium paint).
described pipe insulation body 1 is comprised of two or three arc split docking, and arc split interface correspondence is provided with sealed groove 2, is provided with the first Sealing in the enclosed space that sealed groove 2 surrounds.Sealed groove 2 is set and the first Sealing has not only played good sealing, heat-blocking action, and solved install after the problem of disengagement of seal member seam, reduce pipe insulation body in transportation process and damaged the impact on sealing, effect of heat insulation, even if interface has part to damage, because the existence of sealed groove 2 and the first Sealing still can guarantee sealing, heat insulation index.
described the first Sealing adopts alumina silicate felt or inorganic heat preservation cream foamed glue.
it is circular protruding 1 that described pipe insulation body one side bottom surface Shang Yi bottom center is that the center of circle is provided with, and pipe insulation body opposite side bottom surface is provided with slot 6 corresponding to circular protruding 1; Between adjacent pipe insulation body bottom surface circular protruding 1 and slot 6, accompany the second Sealing.Slot 6 degree of depth can be set to 5mm, and circular protruding 1 height can be set to 3mm.During installation, circular protruding 1 and slot 6 between all available inorganic heat preservation sealing compound bonding, filling, the sealings of seam and sealed groove 2 seams.
described inorganic heat preservation sealing compound is comprised of 1 part of 100 parts of expanded perlite fine powder, 70 parts of double ground powders, 15 parts of grey calcium, calcium hydroxide 20,5 parts of bentonite clays, 20 parts, pulverized fuel ash, 2 parts of aluminum silicate fibers, 0.5 part of wood fibre, 2 parts of brucite fibers, 1 part of methyl cellulose, 5 parts of re-dispersible glue powders, 0.4 part of air entraining agent, stearic acid by mass fraction; After being mixed, add water and stir into paste.This inorganic heat preservation cream thermal conductivity is 0.055W/M.K.
every group of length of the utility model pipe insulation can be set to 500mm, and circular protruding 1 and the slot 6 that every group of two ends interface of pipe insulation is corresponding not only plays the function that prevents that seam from conducting heat, and convenient installation.During installation, can not be subject to the restriction of the necessary fissure of displacement, make binding amount reduce one times.
described the second Sealing adopts alumina silicate felt.
owing to adopting the first Sealing and the second Sealing, even if pipe insulation body has a little damage in transportation process, can not affect seal yet; And can further make in thermal medium course of conveying, to reduce heat loss in pipeline.
depression 4 degree of depth of described concaveconvex structure are 5mm～10mm, and depression 4 width of concaveconvex structure are 2～10 times of non-depression 5 width; Both guarantee certain bending strength, improved again hollow rate.
the depression 4 of described concaveconvex structure is shaped as isosceles trapezoid, non-depression 5 be shaped as lineal shape; Facilitate the demoulding in course of working.
the production method of the utility model expansion pearlite thermal insulation shell comprises the following steps.
1) expanded perlite and adhesive are mixed into mixture.
2) mixture is packed into forming machine moulding box, the pipe insulation that compacting inwall is concaveconvex structure.
3) after the demoulding, then drying is finished product.
described step 3) is pasted aluminium foil or brushing paint in the inner wall surface of finished product pipe insulation.
described step 2) adopt bidirectional hydraulic press to pressure surface type, when pipe insulation density, set and be greater than 180kg/m
3
be less than or equal to 200 kg/m
3
time, to select to be more than or equal to 80# and to be less than 90# expanded perlite, compression ratio is 1.6:1～2.0:1, the pipe insulation that expanded perlite is 2.0 cubic metres～2.2 cubic metres/cubic metre, the pipe insulation of adhesive 120kg～150kg/ cubic meter.
when pipe insulation density, set and be greater than 200 kg/m
3
be less than or equal to 250 kg/m
3
time, to select to be more than or equal to 80# and to be less than or equal to 90# expanded perlite, compression ratio is 1.8:1～2.0:1, the pipe insulation that expanded perlite is 2.0 cubic metres～2.2 cubic metres/cubic metre, the pipe insulation of adhesive 135kg/ cubic meter.
when pipe insulation density is set in 350kg kg/m
3
time, select 90# expanded perlite, compression ratio is 2.5:1, the pipe insulation that expanded perlite is 2.8 cubic metres/cubic metre, the pipe insulation of adhesive 145kg/ cubic meter.
described pipe insulation density is set and is greater than 180kg kg/m
3
be less than or equal to 200 kg/m
3
, be greater than 200 kg/m
3
be less than or equal to kg/m
3
and 350kg/m
3
density rating, be " optimum density " selected for different pipe temperatures, to reach the heat-insulating property of hot channel the best.
described adhesive is pressed mass fraction and is comprised of 2～4 parts of 100 parts of high mould water glass, 2～3 parts of organic acids (pH value 4～5), 0.2～0.6 part of prodan, 0.2～0.5 part of white glue with vinyl, 0～2 part of bentonite clay, waterproofing agent of organosilicon; The making method of adhesive is: add successively high mould water glass, organic acid, prodan, white glue with vinyl, bentonite clay high-speed stirred and add waterproofing agent of organosilicon after 15～20 minutes, then stir and at once can use for 5 minutes.This adhesive has that adhesion strength is high, pH value is alkalescent, do not corrode the advantages such as metal pipe line, hydrophobic.
100 parts of described high mould water glass, 3 parts of organic acids, 0.2 part of prodan, 0.2 part of white glue with vinyl, 1 part of bentonite clay, 3 parts of waterproofing agent of organosilicon, adhesive is mixed with the pipe insulation expanded perlite of 2.2 cubic metres/cubic metre, with the compression ratio compression of 2:1, dry through the temperature of 110 ℃～200 ℃.This adhesive compressive strength significantly improves and can reach 0.7Mp, and pH value is 10, and hydrophobic 99%.
the utility model can be selected 80# expanded perlite, stirs cube 2 cubic metres of expanded perlites, and adhesive 100kg, is mixed into mixture through gravity mixer.
also the pipe insulation adhesive of available 100kg～150kg/ cubic meter is used with the pipe insulation of 1.8 cubic metres～2.8 cubic metres/cubic metre of expanded perlites and is mixed, compression ratio compression with 1.6:1～2.5:1, the demoulding becomes thermal insulation pipe parts, dry through the temperature of 110 ℃～200 ℃.
can adopt the insulation of individual layer shell, also can adopt double-deck shell insulation.While adopting double-deck shell insulation, can consider that double-layer cavity carries out heat reflection scheme twice.Near the first layer shell of pipeline, should select different density (" optimum density " result can by calculating or surveying) according to pipe temperature, and second layer shell should be selected lower density.
below in conjunction with accompanying drawing, installation process of the present utility model is described.
before docking, first at sealed groove 2 places, the first Sealing is installed or is coated inorganic heat preservation sealing compound, by two or three arc splits, forming round casing is wrapped on pipeline outer wall, and make non-depression 5 end faces of pipe insulation inner body wall and pipeline gapless, when adjacent round casing docking, circular protruding 1 sandwiches the second Sealing or coats inorganic heat preservation sealing compound with slot 6 places.
be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technological scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (5)
1. the expansion pearlite thermal insulation shell that is provided with heat reflection cavity, comprises pipe insulation body, it is characterized in that pipe insulation body longitudinal section inwall is concaveconvex structure, and described inner wall surface is provided with thermal reflecting coating (3).
2. be provided with according to claim 1 the expansion pearlite thermal insulation shell of heat reflection cavity, it is characterized in that described pipe insulation body (1) is comprised of two or three arc split docking, arc split interface correspondence is provided with sealed groove (2), in the enclosed space that sealed groove (2) surrounds, is provided with the first Sealing.
3. be provided with according to claim 1 the expansion pearlite thermal insulation shell of heat reflection cavity, it is characterized in that described pipe insulation body one side bottom surface Shang Yi bottom center is that the center of circle is provided with circular projection (1), pipe insulation body opposite side bottom surface is provided with slot (6) corresponding to circular projection (1); Between the circular projection in adjacent pipe insulation body bottom surface (1) and slot (6), accompany the second Sealing.
4. be provided with according to claim 1 the expansion pearlite thermal insulation shell of heat reflection cavity, it is characterized in that depression (4) degree of depth of described concaveconvex structure is 5mm～10mm, the depression of concaveconvex structure (4) width is 2～10 times of non-depression (5) width.
5. be provided with according to claim 4 the expansion pearlite thermal insulation shell of heat reflection cavity, it is characterized in that the depression (4) of described concaveconvex structure is shaped as isosceles trapezoid, non-depression (5) be shaped as lineal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617946.3U CN203477765U (en) | 2013-10-09 | 2013-10-09 | Expanded perlite heat-insulated pipe shell provided with heat reflection cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617946.3U CN203477765U (en) | 2013-10-09 | 2013-10-09 | Expanded perlite heat-insulated pipe shell provided with heat reflection cavity |
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| Publication Number | Publication Date |
|---|---|
| CN203477765U true CN203477765U (en) | 2014-03-12 |
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|---|---|---|---|
| CN201320617946.3U Expired - Fee Related CN203477765U (en) | 2013-10-09 | 2013-10-09 | Expanded perlite heat-insulated pipe shell provided with heat reflection cavity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527898A (en) * | 2013-10-09 | 2014-01-22 | 关范 | Expanded perlite heat-insulated pipe shell with heat reflection cavity and production method thereof |
-
2013
- 2013-10-09 CN CN201320617946.3U patent/CN203477765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527898A (en) * | 2013-10-09 | 2014-01-22 | 关范 | Expanded perlite heat-insulated pipe shell with heat reflection cavity and production method thereof |
| CN103527898B (en) * | 2013-10-09 | 2016-11-23 | 关范 | It is provided with expansion pearlite thermal insulation shell and the production method thereof of heat reflection cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Karamay shield energy saving building material Co., Ltd. Assignor: Guan Fan Contract record no.: 2014210000074 Denomination of utility model: Be provided with expansion pearlite thermal insulation shell and the production method thereof of heat reflection cavity Granted publication date: 20140312 License type: Common License Record date: 20140826 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20161009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |