CN108506647B - Heat preservation section bar and water heater - Google Patents
Heat preservation section bar and water heater Download PDFInfo
- Publication number
- CN108506647B CN108506647B CN201710115465.5A CN201710115465A CN108506647B CN 108506647 B CN108506647 B CN 108506647B CN 201710115465 A CN201710115465 A CN 201710115465A CN 108506647 B CN108506647 B CN 108506647B
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- heat
- insulating
- section bar
- micro bubbles
- bubbles
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000004321 preservation Methods 0.000 title description 2
- 239000011162 core material Substances 0.000 claims abstract description 48
- 239000011241 protective layer Substances 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims description 56
- 239000007789 gas Substances 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 11
- 239000011858 nanopowder Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 9
- 229920006255 plastic film Polymers 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 8
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 claims description 4
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052743 krypton Inorganic materials 0.000 claims description 4
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003605 opacifier Substances 0.000 claims description 4
- 229910052724 xenon Inorganic materials 0.000 claims description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000002105 nanoparticle Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/08—Means for preventing radiation, e.g. with metal foil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Insulation (AREA)
Abstract
The invention provides a heat-insulating section bar and a water heater, wherein the heat-insulating section bar comprises a heat-insulating core material, micro bubbles and at least one protective layer wrapping the heat-insulating core material and the micro bubbles, and heat-insulating gas is filled in the heat-insulating section bar and the micro bubbles. According to the heat-insulating section bar, the heat-insulating core material and the micro-bubbles with relatively low heat conductivity are wrapped by the protective layer, and heat-insulating gas is filled in the heat-insulating section bar and the micro-bubbles to reduce the average heat conductivity of the heat-insulating section bar, so that the heat conductivity of the heat-insulating section bar is reduced, and the heat-insulating performance of the heat-insulating section bar is improved.
Description
Technical Field
The invention relates to the field of water heaters, in particular to a heat-insulating section bar and a water heater using the heat-insulating section bar.
Background
At present, vacuum insulation panels (Vacuum Insulation Panel, abbreviated as VIP) are gradually applied to the field of heat insulation materials of water heaters based on low heat conduction coefficient (8 mW/(m·k)), but the reliability of the VIP is reduced to a certain extent due to the fact that the VIP needs to be kept bent for a long time when the liner wrapping the water heater is wound, and the pressure difference between the low internal pressure of the VIP and the external atmospheric pressure is large, so that the VIP is easy to permeate gas, is further damaged mechanically, and the heat conduction coefficient is increased, so that the heat insulation performance of the water heater is affected.
Disclosure of Invention
The invention mainly aims to provide a heat-insulating section bar, which aims to solve the technical problem that the heat-insulating performance of a water heater is reduced due to the increase of the heat conductivity coefficient of the existing heat-insulating material.
In order to achieve the above purpose, the invention provides a heat-insulating section bar, which comprises a heat-insulating core material, micro bubbles and at least one protective layer wrapping the heat-insulating core material and the micro bubbles, wherein heat-insulating gas is filled in the heat-insulating section bar and the micro bubbles.
Further, the size of the microbubbles in either direction is less than 3mm.
Further, the thermal conductivity of the insulating gas is lower than 25 mW/(mK).
Further, the heat insulating gas is at least one of argon, krypton, xenon, carbon dioxide, cyclopentane and isopentane.
Further, the heat-insulating section bar is also filled with nanometer powder for reflecting heat radiation.
Furthermore, gaps are formed among the heat-insulating core materials, among the microbubbles and among the heat-insulating core materials and the microbubbles, and the gaps are filled with heat-insulating gas and nano powder.
Further, the nano powder is SiO 2 Powder, infrared opacifier, graphite powder, carbon black powder or their mixture.
Further, the heat-insulating core material is at least one of nano particles, glass fibers, carbon fibers and porous materials.
Further, the protective layer is provided with an air inlet and an air outlet, the air inlet and the air outlet are distributed at the upper end, the lower end, the left end and the right end of the protective layer, the position of the air inlet is lower than that of the air outlet, and the heat-insulating section bar further comprises a sealing piece for sealing the air inlet and the air outlet.
Further, the material of the protective layer and the microbubbles is one or more than two layers of composite film materials of a plastic film, a metal foil composite plastic film and a plastic composite film plated with a metal layer.
Further, the heat-insulating section bar also comprises a reflecting layer arranged on the inner surface and/or the outer surface of the protective layer.
Another object of the present invention is to provide a water heater, wherein the outer wall of the inner container of the water heater is coated with the heat-insulating profile.
The heat-insulating section bar provided by the invention is applied to a water heater, and comprises a heat-insulating core material, micro bubbles and at least one protective layer wrapping the heat-insulating core material and the micro bubbles, wherein heat-insulating gas is filled in the heat-insulating section bar and the micro bubbles. According to the heat-insulating section bar, the heat-insulating core material and the micro-bubbles with relatively low heat conductivity are wrapped by the protective layer, and heat-insulating gas is filled in the heat-insulating section bar and the micro-bubbles to reduce the average heat conductivity of the heat-insulating section bar, so that the heat conductivity of the heat-insulating section bar is reduced, and the heat-insulating performance of the heat-insulating section bar is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a thermal insulation profile of the present invention;
fig. 2 is an enlarged view at a in fig. 1.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a heat-insulating section bar which is applied to a water heater.
Referring to fig. 1 and 2, the heat-insulating profile 100 includes a heat-insulating core material 20 and microbubbles 30, and at least one protective layer 10 wrapping the heat-insulating core material 20 and the microbubbles 30, and the heat-insulating profile 100 and the microbubbles 30 are filled with a heat-insulating gas.
In this embodiment, the thermal insulation section 100 includes a protective layer 10, in other embodiments, the protective layer 10 may be further stacked by a plurality of protective layers 10, the protective layer 10 wraps the thermal insulation core 20 and the microbubbles 30 with low thermal conductivity, the thermal insulation core 20 is specifically at least one of particles, fibers, and porous materials, the particles are preferably nanoparticles, the fibers are preferably glass fibers or carbon fibers with good thermal insulation performance, the thermal insulation core 20 and the microbubbles 30 may be distributed according to a regular arrangement sequence, as in the embodiment shown in fig. 1, or may be randomly distributed in the protective layer 10, and the thermal insulation gas with low thermal conductivity is filled in the protective layer Wen Xingcai and the microbubbles 30, so as to further reduce the thermal conductivity of the thermal insulation section 100 and increase the thermal insulation performance thereof.
The heat-insulating section bar 100 is applied to a water heater, the heat-insulating section bar 100 comprises a heat-insulating core material 20, micro bubbles 30 and at least one protective layer 10 wrapping the heat-insulating core material 20 and the micro bubbles 30, and heat-insulating gas is filled in the heat-insulating section bar 100 and the micro bubbles 30. According to the heat-insulating section bar 100, the heat-insulating core material 20 and the micro bubbles 30 with relatively low heat conductivity are wrapped by the protective layer 10, and the heat-insulating gas is filled in the Wen Xingcai and the micro bubbles 30 to reduce the average heat conductivity of the heat-insulating section bar 100, so that the heat conductivity of the heat-insulating section bar 100 is reduced, the heat-insulating performance of the heat-insulating section bar is improved, and when the heat-insulating section bar 100 is wrapped by the inner container of the water heater and is bent for a long time, the heat-insulating gas of the heat-insulating section bar 100 is rearranged and distributed, so that mechanical damage is avoided, and the service life of the heat-insulating section bar is further prolonged, and the heat-insulating effect is further improved.
Further, referring to fig. 1 and 2, the size of the microbubbles 30 in either direction is less than 3mm.
In this embodiment, in order to further reduce the thermal conductivity of the heat insulation profile 100, the diameter of the micro-bubbles 30 is generally smaller than 3mm, so as to ensure that the interior of each micro-bubble 30 convects heat, the micro-bubbles 30 further form openings, the adjacent micro-bubbles 30 are communicated through the openings, and when the heat insulation gas is filled, the micro-bubbles 30 reach full pressure as much as possible, so that the internal pressure of the micro-bubbles 30 and the heat insulation profile 100 is consistent with the external atmospheric pressure, and thus, the air leakage caused by the pressure difference between the interior and the exterior of the heat insulation profile 100 is prevented, the mechanical damage to the heat insulation profile is caused, and the possibility of performance weakness of the heat insulation profile 100 is further reduced.
Further, the thermal conductivity of the insulating gas is lower than 25 mW/(mK), preferably, the insulating gas is at least one of argon, krypton, xenon, carbon dioxide, cyclopentane and isopentane.
In this embodiment, the heat insulation gas with a thermal conductivity of less than 25 mW/(m·k), preferably less than 15 mW/(m·k) is filled in the heat insulation layer Wen Xingcai to reduce the thermal conductivity of the heat insulation profile 100 and improve the heat insulation performance thereof. The heat insulating gas may be any one of argon, krypton, xenon, carbon dioxide, cyclopentane and isopentane, or may be a mixture of two or more gases in any combination and in any ratio.
Further, referring to fig. 1 and 2, the heat-insulating section 100 is further filled with a nano powder for reflecting heat radiation, wherein the nano powder is SiO 2 Powder, infrared opacifier, graphite powder, carbon black powder or their mixture.
In this embodiment, in order to further reduce the heat transfer of the heat-insulating profile 100 and the gas in the microbubbles 30, the inside of the heat-insulating profile Wen Xingcai is further filled with a heat-radiation-resistant nano powder, which may be SiO 2 Any one of powder, infrared opacifier, graphite powder and carbon black powder, or a mixture of two or more of them mixed in any combination and any proportion, wherein the nano powder is preferably SiO 2 And (5) powder.
Further, referring to fig. 1 and 2, gaps (not shown) are formed between the heat-insulating core materials 20, between the microbubbles 30, and between the heat-insulating core materials 20 and the microbubbles 30, and the heat-insulating gas and the nano powder are also filled in the gaps.
In this embodiment, the shape of the heat insulation core material 20 is not limited, and may be a regular square body, a sphere or a polyhedron, or an irregular structure, and gaps between adjacent heat insulation core materials 20 and microbubbles 30, or between adjacent heat insulation core materials 20 and between microbubbles 30 must be formed to a certain extent, so that in order to further reduce the average heat conductivity of the heat insulation section bar 100, the heat insulation section bar 100 of this embodiment further fills heat insulation gas and/or nano powder in the gaps, so as to further improve the heat insulation performance of the heat insulation section bar 100.
Further, referring to fig. 1 and 2, the protection layer 10 is provided with an air inlet 11 and an air outlet 12, the air inlet 11 and the air outlet 12 are distributed at the upper and lower or left and right ends of the protection layer 10, the air inlet 11 is lower than the air outlet 12, and the heat-insulating section 100 further comprises a sealing member for sealing the air inlet 11 and the air outlet 12.
In this embodiment, the protection layer 10 is further provided with an air inlet 11 and an air outlet 12, because the density of the heat-insulating gas is greater than that of air, in order to facilitate the air inflation of the heat-insulating section 100, the air inlet 11 and the air outlet 12 are distributed at the upper end, the lower end, the left end and the right end of the protection layer 10, and the position of the air inlet 11 is lower than that of the air outlet 12, when the heat-insulating section 100 is inflated, the heat-insulating section 100 is horizontally placed, and then the heat-insulating gas is inflated through the air inlet 11, and the heat-insulating gas can squeeze the air in the gaps between the heat-insulating core materials 20, between the micro bubbles 30 and between the heat-insulating core materials 20 and the micro bubbles 30 to be exhausted through the air outlet 12, and the sealing element for sealing the air inlet 11 and the air outlet 12 can be an electric control electromagnetic valve or a manually controlled low-pressure valve.
Further, referring to fig. 1 and 2, the material of the protective layer 10 and the microbubbles 30 is one or more than two layers of plastic film, metal foil composite plastic film, and plastic composite film coated with a metal layer.
In this embodiment, the protective layer 10 and the micro-bubbles 30 are made of a soft film with a relatively low thermal conductivity and air impermeability, such as a plastic film, a metal foil composite plastic film, or a composite film material of one or more than two layers of plastic composite films coated with metal layers, so that on one hand, the heat insulation effect of the heat insulation section bar can be further enhanced, and on the other hand, the heat insulation section bar has better flexibility and is more convenient to be applied to the installation of a water heater.
Further, referring to fig. 1 and 2, the thermal insulation profile 100 further comprises a reflective layer 40 provided on the inner and/or outer surface of the protective layer 10.
In this embodiment, the inner surface and/or the outer surface of the protective layer 10 is further provided with a reflective layer 40 that reflects heat transfer and does not add an additional edge thermal bridge effect, and the reflective layer 40 is a film layer or a coating layer, so that the heat insulation performance of the heat insulation section bar 100 can be further improved by reflecting radiant heat by the reflective layer 40, and the reflective layer 40 may be one or more layers of a metal foil composite plastic film, a plastic composite film coated with a metal layer, a metal reflective coating layer, and a nano reflective coating layer.
The heat-insulating profile 100 of the present invention may adopt the following inflation method when inflation is performed, but the following method is only applicable to heat-insulating profiles in which the protection layer 10 is provided with the air inlet 11 and the air outlet 12:
firstly, pumping air in gaps among the heat-insulating core materials 20, among the micro bubbles 30 and among the heat-insulating core materials 20 and the micro bubbles 30 through the exhaust holes 12 by using an air pumping device such as a vacuum pump, pumping air in the micro bubbles 30 when the micro bubbles 30 are formed with openings, sealing the exhaust holes 12 after a first preset time, namely, a predicted air complete pumping time, opening the air inlet holes 11 to fill heat-insulating gas into the gaps among the heat-insulating core materials 20, among the micro bubbles 30 and between the heat-insulating core materials 20 and the micro bubbles 30 or the micro bubbles 30, and finally stopping filling after a second preset time, namely, a time when the heat-insulating gas preset according to the total volume of the gaps and the micro bubbles 30 can be completely filled, and sealing the air inlet holes 11 to finish filling of the heat-insulating profile 100;
secondly, setting a full pressure value according to the material composition of the protective layer 10, considering the micro bubbles 30 when the micro bubbles 30 are filled, continuously filling heat-insulating gas into gaps among the heat-insulating core materials 20, among the micro bubbles 30 and among the heat-insulating core materials 20 and the micro bubbles 30 through the air inlets 11 within preset time, stopping inflating when the full pressure of the protective layer 10 and the micro bubbles 30 is detected, and sealing the air inlets 11 and the air outlets 12 to finish inflating the heat-insulating section 100;
setting the full pressure value according to the material composition of the protective layer 10, considering the micro bubbles 30 when the micro bubbles 30 are filled, then pumping air in gaps among the heat insulation core materials 20, the micro bubbles 30 and the heat insulation core materials 20 and the micro bubbles 30 through the exhaust holes 12, simultaneously filling heat insulation gas into the gaps among the heat insulation core materials 20, the micro bubbles 30 and the heat insulation core materials 20 and the micro bubbles 30 through the air inlets 11, and finally stopping pumping and inflating when the micro bubbles 30 and the protective layer 10 are detected to be full pressure, sealing the exhaust holes 12 and the air inlets 11 and finishing inflating the heat insulation section 100;
and fourthly, placing the heat-insulating section bar 100 in an environment filled with heat-insulating gas, then extracting air in gaps among the heat-insulating core materials 20, between the micro bubbles 30 and between the heat-insulating core materials 20 and the micro bubbles 30 through the air exhaust holes 12, opening the air inlet holes 11 to enable the heat-insulating gas to be filled into the gaps among the heat-insulating core materials 20, between the micro bubbles 30 and between the heat-insulating core materials 20 and the micro bubbles 30 by utilizing the internal and external pressure difference of the heat-insulating section bar 100 after extracting for a preset time, and finally sealing the air exhaust holes 12 and the air inlet holes 11 when detecting the internal and external pressure balance of the heat-insulating section bar 100.
Another object of the present invention is to provide a water heater, the outer wall of the inner container of which is covered with the heat-insulating profile 100 as described above.
In this embodiment, the outer wall of the inner container of the water heater is coated with the heat-insulating section bar 100 as described above, the heat-insulating section bar 100 includes a heat-insulating core material 20 and microbubbles 30, and at least one protective layer 10 that wraps the heat-insulating core material 20 and the microbubbles 30, and the heat-insulating section bar 100 and the microbubbles 30 are filled with heat-insulating gas. The heat insulation section bar 100 arranged between the inner container and the outer shell of the water heater wraps the heat insulation core material 20 and the micro bubbles 30 with lower heat conductivity through the protective layer 10, heat insulation gas is filled in the Wen Xingcai and the micro bubbles 30 to reduce the average heat conductivity of the heat insulation section bar 100, further the heat conductivity of the heat insulation section bar 100 is reduced, the heat insulation performance is improved, and when the heat insulation section bar 100 is wrapped by the heat insulation gas to bend for a long time, the heat insulation gas of the heat insulation section bar 100 is rearranged and distributed, mechanical damage is avoided, and the service life and the heat insulation effect of the heat insulation section bar are further improved.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (6)
1. The heat-insulating section bar is characterized by comprising a heat-insulating core material, micro bubbles and at least one protective layer wrapping the heat-insulating core material and the micro bubbles, wherein heat-insulating gas is filled in the heat-insulating section bar and the micro bubbles; the size of the micro-bubbles in any direction is smaller than 3mm; the heat conductivity coefficient of the heat insulation gas is lower than 15 mW/(m.K); the micro-bubbles are made of one or more than two layers of composite film materials of a metal foil composite plastic film and a plastic composite film plated with a metal layer; the micro bubbles form openings, and adjacent micro bubbles are communicated through the openings; the heat-insulating section bar is also filled with nanometer powder for reflecting heat radiation; the heat-insulating section bar also comprises a reflecting layer arranged on the inner surface and/or the outer surface of the protective layer; gaps are formed among the heat-insulating core materials, among the micro bubbles and among the heat-insulating core materials and the micro bubbles, and the gaps are filled with heat-insulating gas and nano powder; the nano powder is SiO 2 Powder, infrared opacifier, graphite powder, carbon black powder or their mixture.
2. The insulating profile of claim 1, wherein the insulating gas is at least one of argon, krypton, xenon, carbon dioxide, cyclopentane, and isopentane.
3. The thermal profile of claim 1, wherein the thermal insulation core material is at least one of nanoparticles, glass fibers, carbon fibers, and porous materials.
4. The heat-insulating section bar according to claim 1, wherein the protective layer is provided with an air inlet hole and an air outlet hole, the air inlet hole and the air outlet hole are distributed at the upper end, the lower end, the left end and the right end of the protective layer, the position of the air inlet hole is lower than the position of the air outlet hole, and the heat-insulating section bar further comprises a sealing piece for sealing the air inlet hole and the air outlet hole.
5. The heat-insulating section bar according to claim 1, wherein the material of the protective layer is one or more than two layers of composite film materials of a metal foil composite plastic film and a plastic composite film plated with a metal layer.
6. A water heater, wherein the outer wall of the inner container of the water heater is coated with the heat-insulating profile according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115465.5A CN108506647B (en) | 2017-02-28 | 2017-02-28 | Heat preservation section bar and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115465.5A CN108506647B (en) | 2017-02-28 | 2017-02-28 | Heat preservation section bar and water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108506647A CN108506647A (en) | 2018-09-07 |
| CN108506647B true CN108506647B (en) | 2023-12-01 |
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|---|---|---|---|
| CN201710115465.5A Active CN108506647B (en) | 2017-02-28 | 2017-02-28 | Heat preservation section bar and water heater |
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| CN (1) | CN108506647B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506646B (en) * | 2017-02-28 | 2024-04-26 | 芜湖美的厨卫电器制造有限公司 | Heat preservation section bar and water heater |
| CN109237207A (en) * | 2018-11-03 | 2019-01-18 | 北京卡林新能源技术有限公司 | A kind of easily contained heat-insulated cloth layer structure |
| CN109442143A (en) * | 2018-11-03 | 2019-03-08 | 北京卡林新能源技术有限公司 | A kind of easily contained heat-insulated cloth layer structure |
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|---|---|---|---|---|
| GB2079415A (en) * | 1980-07-02 | 1982-01-20 | Wilson Michael J Bolton Ltd | Thermal insulation |
| CN102514294A (en) * | 2011-11-24 | 2012-06-27 | 天津霖田冶金科技有限公司 | Multilayer reflection heat insulation composite board and manufacturing method thereof |
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| CN205843057U (en) * | 2016-07-11 | 2016-12-28 | 芜湖美的厨卫电器制造有限公司 | Thermal insulation cover and storage-type electric water heater |
| CN106440370A (en) * | 2016-09-30 | 2017-02-22 | 芜湖美的厨卫电器制造有限公司 | Heat insulation sectional material and water heater |
| CN206582471U (en) * | 2017-02-28 | 2017-10-24 | 芜湖美的厨卫电器制造有限公司 | Heat-insulating profile and water heater |
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| KR101465333B1 (en) * | 2013-03-19 | 2014-11-25 | 신용순 | Method for manucacturing heat insulator and heat insulator manufacured by the method |
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| CN102514294A (en) * | 2011-11-24 | 2012-06-27 | 天津霖田冶金科技有限公司 | Multilayer reflection heat insulation composite board and manufacturing method thereof |
| CN103307411A (en) * | 2012-03-15 | 2013-09-18 | 李书营 | Inflating and deflating type heat insulation material |
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