CN216135172U - Low-temperature cigarette smoking set heat insulation pipe - Google Patents
Low-temperature cigarette smoking set heat insulation pipe Download PDFInfo
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- CN216135172U CN216135172U CN202121100846.4U CN202121100846U CN216135172U CN 216135172 U CN216135172 U CN 216135172U CN 202121100846 U CN202121100846 U CN 202121100846U CN 216135172 U CN216135172 U CN 216135172U
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- cylindrical pipe
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- 238000009413 insulation Methods 0.000 title claims abstract description 58
- 230000000391 smoking effect Effects 0.000 title claims abstract description 23
- 235000019504 cigarettes Nutrition 0.000 title abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000002241 glass-ceramic Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 238000010146 3D printing Methods 0.000 abstract description 8
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- 241000208125 Nicotiana Species 0.000 description 6
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 239000004964 aerogel Substances 0.000 description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 235000015895 biscuits Nutrition 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003571 electronic cigarette Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000006112 glass ceramic composition Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
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Abstract
The utility model discloses a low-temperature cigarette smoking set heat insulation pipe. The heat insulation pipe is in a hollow tubular shape, the heat insulation pipe is mainly composed of a cylindrical pipe, two ends of the cylindrical pipe are both opened, one end of the cylindrical pipe is provided with a U-shaped inner flange, the inner flange extends axially outwards firstly and then bends reversely and extends axially inwards to form a U shape, annular micro-channels which are arranged in parallel and spherical micro-holes which are distributed disorderly and discretely among the annular micro-channels are contained in the pipe wall of the cylindrical pipe, the heat insulation pipe is manufactured after three-dimensional printing, and the inner wall surface and the outer wall surface of the heat insulation pipe can be provided with glass coatings. The heat insulation pipe can realize the optimal synergistic effect of low heat conduction and low heat convection, and is used as an inner heat insulation component of a heating non-combustible smoking set for low-temperature smoke.
Description
Technical Field
The utility model relates to a low-temperature smoking set heat insulation pipe in the field of heat insulation materials, in particular to a hollow low-temperature smoking set heat insulation pipe which can efficiently and durably prevent heat loss or heat discomfort.
Background
In the industry of low-temperature smoke heating non-combustion smoking set, heat with the internal temperature of 200-350 ℃ needs to be blocked, and scalding or discomfort caused by too high temperature of a shell of the smoking set is avoided. In recent years, with the advent of electronic atomization technology and electronic cigarette products, a consumption hot trend including electronic cigarettes and heating non-burning tobacco has been developed all over the world. The low-temperature cigarette belongs to a non-burning and low-harm cigarette substitute, and promotes the traditional cigarette industry to actively develop the technology of low-temperature cigarette products.
The heating temperature of the smoking set which is not burnt is 200-350 ℃, the semi-closed heat cannot be taken away by smoke and must be blocked, otherwise, the surface temperature of the smoking set is too high, and even scalding risks are brought. Therefore, the design of an insulated pipe that heats a non-burning smoking article is a very important component. Generally, the heat insulation components and materials of the products are often made of materials such as metal vacuum tubes, ceramic fiber mats or PEEK. However, the conventional processing technology adopted by the metal vacuum tube enables the vacuum degree in the metal tube not to be effectively tested, the heat insulation effect is unstable, the heat insulation effect is lost once the vacuum tube leaks air, and the cost is high; the ceramic fiber felt and the heat insulation cotton heat insulation material have low cost, and the fiber contains a large amount of gaps, but the stability after the structure is formed is poor, and the secondary assembly and disassembly are difficult; the PEEK material plays a heat insulation role in a low-temperature cigarette suction nozzle, a top cover, a smoking set shell, a heating sheet base, an atomization bin and the like, but the PEEK and other organic materials have higher cost, and potential hazards such as thermal decomposition, easy aging and the like exist in a use temperature range.
In the design of a miniaturized heat insulating pipe, it is necessary to solve the problems of reduction in heat conduction, strict prevention of heat convection, and the like. Reducing heat conduction requires destroying a continuous solid or liquid medium, greatly extending the heat conduction path, and strictly preventing heat convection requires establishing as many solid-gas interfaces as possible, changing the flow direction of heat, thereby confining heat and insulating heat. Therefore, although the pore glue with the porosity rate of more than 95 percent attracts attention in the field of heat insulation and preservation, the nano-scale ultrafine particle stacking masonry is difficult to form a tubular object with a stable structure and cannot be manufactured into a high-efficiency heat insulation tubular object with stable mechanical properties by using the aerogel, the preparation, drying, forming and other processes of the aerogel are too complicated and high in cost, and once moisture absorption occurs in a pore channel network, the heat insulation performance of the aerogel is obviously reduced. Therefore, the limitations of the above materials and their design schemes in the application of the heat insulation pipe for heating non-combustible smoking set are very outstanding, and the practical requirements can be satisfied only by the novel low-temperature heat insulation pipe for smoking set with high reliability and long service life.
In summary, effective realization of efficient and durable heat insulation with synergistic effects of low thermal conductivity and low convection requires selection of raw materials, design of micro-to macro-morphology of components, and manufacturing processes, all of which require practicability.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the background art, the utility model aims to provide a low-temperature tobacco smoking set heat insulation pipe which solves the problems of high stability, long service life, heat insulation, high-efficiency manufacture and the like under the condition of ensuring high efficiency, lasting heat insulation and reliable long-term recycling of heating non-combustion smoking sets.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the heat insulation pipe is in a hollow tubular shape and mainly comprises a cylindrical pipe, two ends of the cylindrical pipe are both opened, one end of the cylindrical pipe is provided with a U-shaped inner flange, the inner flange extends axially outwards and then is bent reversely and extends axially inwards to form a U shape, the bent axially inwards extends into the end opening of the cylindrical pipe, and the pipe wall of the cylindrical pipe is internally provided with annular micro-channels which are arranged in parallel and spherical or ellipsoidal micro-holes which are distributed between the annular micro-channels in a discrete and disordered way. Has a complete through-hole structure.
The surfaces of the inner wall and the outer wall of the heat insulation pipe can also be provided with mesoporous glass coatings, and the heat insulation pipe is formed by three-dimensional printing post-treatment.
As shown in fig. 1-3, the tube wall of the cylindrical tube contains at least two concentric annular microchannels arranged inside and outside, each annular microchannel is mainly formed by a plurality of annular cavities which are arranged in the cylindrical tube and are uniformly distributed along the axial direction of the cylindrical tube at intervals, the diameters of the annular cavities in the same annular microchannel are the same, the adjacent annular cavities are not communicated, and spherical or ellipsoidal micropores are arranged in the tube wall of the cylindrical tube between the adjacent annular cavities; the spherical micropores are arranged in a plurality and randomly and non-uniformly distributed, and the number and the arrangement mode of the spherical micropores are not strictly limited. The annular cavities are not communicated with each other through spherical micropores, and the spherical micropores are not arranged on the outer peripheral surface and the inner peripheral surface of the cylindrical pipe.
Each annular micro-channel is in an annular shape concentric with the cylindrical pipe, the whole pipe wall is wound, and the annular micro-channel and the spherical micro-holes are all in vacuum.
The outer diameter of the heat insulation pipe is 12-16mm, the inner diameter of the cylindrical pipe is 8-10mm, the inner diameter of the flange is 4-7mm, and the length of the heat insulation pipe is 30-45 mm.
The cross section of the annular microchannel is rectangular, square or circular, the side length or diameter of each side of the cross section is 50-400 mu m, and the aperture of the spherical or ellipsoidal micropore is 1-15 mu m.
The surface of the outer wall of the heat insulation pipe is provided with a mesoporous glass coating, and the thickness of the mesoporous glass coating is 0.02-0.10 mm. The mesoporous glass coating is coated by mesoporous glass hydrosol.
The material of the heat insulation pipe adopts silicate, phosphate and borate ceramics or glass-ceramics.
The heat insulation pipe is manufactured through the steps of three-dimensional modeling, three-dimensional printing, drying and the like.
The heat insulation pipe is used as a heat insulation part for heating the non-combustion smoking set, is used for a heat insulation protective shell of the heating body, and prevents heat loss or heat discomfort.
The low-temperature smoke refers to smoke with the temperature lower than 350 ℃.
The utility model has the beneficial effects that:
1) the utility model can be manufactured by a digital modeling and photocuring three-dimensional printing mode, the shape, the size and the distribution of the annular micropores of the section of the internal annular micropore can be cut or adjusted, and the advantages of high heat insulation efficiency and long service life can be realized by structural design and printing manufacturing; has the characteristics of reasonable design, fine microstructure, lasting heat-insulating property and the like.
2) The heat insulation pipe can realize the optimal synergistic effect of low heat conduction and low heat convection, and is used as an inner heat insulation component of a heating non-combustible smoking set for low-temperature smoke.
Drawings
FIG. 1 is a schematic view showing the overall structure of an insulated pipe according to the present invention. (a) A sectional view showing the heat insulating pipe, (b) an external view showing the heat insulating pipe, and (a) the sectional view of (b).
FIG. 2 is a schematic top view of the insulated pipe of the present invention. (a) An outer diameter of the insulated pipe is shown, and (b) an inner diameter and a flange inner diameter of the insulated pipe are shown.
Fig. 3 is a perspective view of the heat insulating pipe of the present invention. (a) One of the perspective views of the heat insulating pipe is shown, and the other perspective view of the heat insulating pipe is shown.
FIG. 4 is a three-dimensional configuration and a structural view of an internal cross section of an insulating tube for a low-temperature smoking set according to the present invention, wherein A represents a structure of a circular ring hole in the wall of the longitudinal cross section of the insulating tube, B and C represent structural views of transverse cross sections at i and ii in FIG. C, respectively, and D represents a structural view of a microstructure of a circular micro-hole and spherical and ellipsoidal micro-holes in the longitudinal cross section of a selected region in accordance with iii in FIG. A.
FIG. 5 is a three-dimensional configuration and a structural view of an internal cross section of an insulating tube of a low-temperature smoking set according to the present invention, wherein A represents a structure of a ring-shaped hole in the wall of the longitudinal cross section of the insulating tube, B and C represent structural views of transverse cross sections at i and ii in FIG. C, respectively, and D represents a micro-structural view of a ring-shaped micropore, a spherical micropore and an ellipsoidal micropore in the longitudinal cross section of a selected region in accordance with iii in FIG. A.
Detailed Description
The utility model is further illustrated by the following figures and examples.
Example 1
A low-temperature tobacco smoking tool heat insulation pipe model is established by using modeling software, the three-dimensional model has the shape, the annular hole structure and the sizes of all parts shown in the attached drawing 1, borate ceramic materials are used for three-dimensional printing, the model is proportionally increased by 1.25 times before printing, a tubular biscuit obtained by model printing is dried to obtain the low-temperature tobacco smoking tool heat insulation pipe, and the pipe wall coating is 0.08 mm.
The shape and structure of the heat insulation pipe of the embodiment are shown in fig. 4, and the pipe wall comprises orderly distributed annular micropores and disorderly distributed spherical micropores. The result of the machine heat insulation performance test of the low-temperature smoke pipe of the embodiment and the current stainless steel vacuum pipe, stainless steel vacuum pipe and ceramic fiber felt jacket for heat insulation of the heating non-combustible smoke pipe shows that the outer wall temperature of the heat insulation pipe of the embodiment is 41 ℃, but the outer wall temperatures of the stainless steel vacuum pipe, stainless steel vacuum pipe and ceramic fiber felt jacket are 59 ℃ and 50 ℃, which shows that the heat insulation performance of the three-dimensional printing porous low-temperature smoke pipe of the utility model is excellent.
Example 2
A low-temperature smoke and tobacco mold heat insulation pipe model is established by using modeling software, the model has the shape, the annular hole structure and the sizes of all parts as shown in attached figures 1-3, three-dimensional printing is carried out by using a glass-ceramic material, the model is proportionally increased by 1.22 times before printing, a tubular biscuit obtained by the model printing is dried and then is immersed in mesoporous glass hydrosol to be coated with a mesoporous glass coating, and the pipe wall coating of the obtained low-temperature smoke and tobacco mold heat insulation pipe is 0.04 mm.
The shape and structure of the heat insulation pipe of the embodiment are shown in figure 5, and the pipe wall comprises orderly arranged annular micropores and disorderly arranged spherical and ellipsoidal micropores.
The result of the machine heat insulation performance test of the low-temperature smoke pipe of the embodiment and the stainless steel vacuum pipe, the stainless steel vacuum pipe and the ceramic fiber felt jacket for heat insulation of the existing heating non-combustible smoke pipe shows that the outer wall temperature of the heat insulation pipe of the embodiment is 43 ℃, but the outer wall temperatures of the stainless steel vacuum pipe, the stainless steel vacuum pipe and the ceramic fiber felt jacket are 59 ℃ and 52 ℃, which shows that the heat insulation performance of the three-dimensional printing porous low-temperature smoke pipe of the utility model is excellent.
Claims (7)
1. The utility model provides a thermal-insulated pipe of low temperature smoking set which characterized in that: the heat insulation pipe is mainly composed of a cylindrical pipe, two ends of the cylindrical pipe are both opened, one end of the cylindrical pipe is provided with a U-shaped inner flange, and the pipe wall of the cylindrical pipe is internally provided with annular micro-channels which are arranged in parallel and spherical or ellipsoidal micro-holes which are distributed between the annular micro-channels in a disordered and discrete manner.
2. The insulating tube of claim 1, wherein: the pipe wall of the cylindrical pipe is internally provided with at least two concentric annular microchannels which are arranged inside and outside, each annular microchannel is mainly formed by a plurality of annular cavities which are arranged in the cylindrical pipe and are uniformly distributed along the axial direction of the cylindrical pipe at intervals, adjacent annular cavities are not communicated, and spherical or ellipsoidal micropores are arranged in the pipe wall of the cylindrical pipe between the adjacent annular cavities.
3. The insulating tube of claim 1, wherein:
each annular micro-channel is in an annular shape concentric with the cylindrical pipe, and the inside of each annular micro-channel and the inside of each spherical micro-hole are both vacuum.
4. The insulating tube of claim 1, wherein:
the outer diameter of the heat insulation pipe is 12-16mm, the inner diameter of the cylindrical pipe is 8-10mm, the inner diameter of the flange is 4-7mm, and the length of the heat insulation pipe is 30-45 mm.
5. The insulating tube of claim 1, wherein:
the cross section of the annular microchannel is rectangular, square or circular, the side length or diameter of each side of the cross section is 50-400 mu m, and the aperture of the spherical or ellipsoidal micropore is 1-15 mu m.
6. The insulating tube of claim 1, wherein:
the surface of the outer wall of the heat insulation pipe is provided with a mesoporous glass coating, and the thickness of the mesoporous glass coating is 0.02-0.10 mm.
7. The insulating tube of claim 1, wherein:
the material of the heat insulation pipe adopts silicate, phosphate and borate ceramics or glass-ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121100846.4U CN216135172U (en) | 2021-05-21 | 2021-05-21 | Low-temperature cigarette smoking set heat insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121100846.4U CN216135172U (en) | 2021-05-21 | 2021-05-21 | Low-temperature cigarette smoking set heat insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216135172U true CN216135172U (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121100846.4U Active CN216135172U (en) | 2021-05-21 | 2021-05-21 | Low-temperature cigarette smoking set heat insulation pipe |
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| Country | Link |
|---|---|
| CN (1) | CN216135172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113142669A (en) * | 2021-05-21 | 2021-07-23 | 浙江大学 | Low-temperature cigarette smoking set heat insulation pipe |
| WO2023213940A1 (en) * | 2022-05-04 | 2023-11-09 | Philip Morris Products S.A. | Heater assembly with external microporous insulation |
-
2021
- 2021-05-21 CN CN202121100846.4U patent/CN216135172U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113142669A (en) * | 2021-05-21 | 2021-07-23 | 浙江大学 | Low-temperature cigarette smoking set heat insulation pipe |
| CN113142669B (en) * | 2021-05-21 | 2024-08-23 | 浙江大学 | Low-temperature heat-insulating pipe for cigarettes and smoking set |
| WO2023213940A1 (en) * | 2022-05-04 | 2023-11-09 | Philip Morris Products S.A. | Heater assembly with external microporous insulation |
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