CN213426507U - Carbon nanofiber membrane infrared radiation heating pipe - Google Patents
Carbon nanofiber membrane infrared radiation heating pipe Download PDFInfo
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- CN213426507U CN213426507U CN202022539545.3U CN202022539545U CN213426507U CN 213426507 U CN213426507 U CN 213426507U CN 202022539545 U CN202022539545 U CN 202022539545U CN 213426507 U CN213426507 U CN 213426507U
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- nickel
- nanofiber membrane
- carbon nanofiber
- heating pipe
- electrode
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000010438 heat treatment Methods 0.000 title claims abstract description 85
- 239000012528 membrane Substances 0.000 title claims abstract description 66
- 239000002134 carbon nanofiber Substances 0.000 title claims abstract description 58
- 230000005855 radiation Effects 0.000 title claims abstract description 34
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 41
- 239000004917 carbon fiber Substances 0.000 claims abstract description 41
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 129
- 229910052759 nickel Inorganic materials 0.000 claims description 40
- 239000006260 foam Substances 0.000 claims description 31
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005485 electric heating Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010041 electrostatic spinning Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Surface Heating Bodies (AREA)
Abstract
The application relates to the field of electric heating pipes, in particular to a carbon nanofiber membrane infrared radiation heating pipe. The heating pipe comprises a pipe body, a carbon nanofiber membrane, an electrode and an electrified lead. The carbon nanofiber membrane is laid in the pipe body along the length direction of the pipe body. The electrodes comprise a first electrode and a second electrode, and the first electrode, the carbon nanofiber membrane and the second electrode are arranged in the tube body. The electrified lead is connected with the electrode, and the free end of the electrified lead is arranged outside the tube body. The heating pipe does not need to increase the size of a quartz glass round pipe to contain more carbon fiber wires like a conventional carbon wire heating pipe by arranging the carbon nanofiber membrane. And the carbon nanofiber membrane has small density, thin thickness and large heating and radiation area, and the manufactured heating element is lighter and thinner. Thereby compare in present conventional carbon silk type carbon fiber heating pipe, the nanometer carbon fiber membrane infrared radiation heating pipe volume of this application is littleer, infrared radiance is higher, the rate of rise is faster, electric heat conversion efficiency is higher.
Description
Technical Field
The application relates to the field of electric heating pipes, in particular to a carbon nanofiber membrane infrared radiation heating pipe.
Background
The electric heating tube is an electric heating element, generally in a round tube shape, and is commonly heated by a metal heating tube and quartz. The heating wire of the quartz heating pipe is tungsten wire or carbon wire, the carbon wire uses filament carbon fiber and braided wire thereof as heating wire, and the heating pipe is also called carbon fiber heating pipe. As a high-end product, the carbon fiber heating pipe has incomparable advantages compared with other heating pipes: the temperature rise is fast, the electric-heat conversion efficiency is high, infrared radiation heating is generated, the health care function is achieved, visible light is less, high temperature resistance is achieved, and the service life is long.
The carbon fiber heating wire adopted at present is formed by weaving carbon fiber filaments with micron-sized diameters. The heating value of the heating tube is determined by the heating wires, and the heating value of each heating wire is determined by the length and the number of the contained carbon fiber filaments. Under the application requirement of high heating power, a plurality of heating pipes are still required to be combined, so that the heating performance of the carbon fiber heating pipe in unit volume is necessary to be improved, and the carbon fiber heating pipe is generally realized by lengthening the length of a carbon wire or increasing the number of the carbon fiber wires. The utility model discloses a carbon fiber heating pipe as utility model patent (CN203813980U) discloses, improved the structure of single carbon filament heating in the past, increased three to six carbon filaments in the single heating pipe, the single carbon filament heating pipe that the efficiency of generating heat is greater than same carbon filament quantity. Utility model patent (CN209964314U) discloses a both ends are close around spiral carbon fiber heating pipe, with the spiral of carbon fiber winding into the spring shape, be equivalent to the length of extension single carbon filament to improve its efficiency that generates heat.
However, when the heating effect needs to be improved, the conventional carbon fiber type heating tube can only accommodate more carbon fibers by increasing the size of the quartz glass circular tube, which causes the carbon fiber type heating tube to have a larger volume and be heavier, and limits the application range of the carbon fiber type heating tube.
SUMMERY OF THE UTILITY MODEL
The purpose of the embodiment of the application is to provide a carbon nanofiber membrane infrared radiation heating pipe.
In a first aspect, the present application provides a carbon nanofiber membrane infrared radiation heating tube, including:
a pipe body;
the carbon nanofiber membrane is laid in the pipe body along the length direction of the pipe body;
the electrodes comprise a first electrode and a second electrode, and the first electrode, the carbon nanofiber membrane and the second electrode are arranged in the tube body; and
and the electrifying lead is connected with the electrode, and the free end of the electrifying lead is arranged outside the tube body.
The application discloses carbon nanofiber membrane infrared radiation heating pipe need not can only adopt to increase quartz glass pipe size and remove to hold more carbon fiber silk like the carbon fiber heating pipe through setting up the carbon nanofiber membrane, removes to improve heating efficiency. Because the carbon nanofiber membrane adopted by the application has small density and thin thickness, the manufactured heating element is lighter and thinner. Thereby compare in present carbon silk type carbon fiber heating pipe, the nanometer carbon fiber membrane infrared radiation heating pipe volume of this application is littleer, infrared radiation is higher, the rate of rise is faster, electric heat conversion efficiency is higher.
In other embodiments of the present application, the first electrode comprises a first nickel ring and a first nickel foam sheet; the first nickel ring and the first foam nickel sheet are arranged at the first end of the carbon nanofiber membrane; the second electrode comprises a second nickel ring and a second foam nickel sheet; the second nickel ring and the second foam nickel sheet are arranged at the second end of the carbon nanofiber membrane.
In other embodiments of the present application, the first nickel ring and the second nickel ring each include two, the first nickel foam sheet and the second nickel foam sheet each include two, and the two first nickel rings, the two first nickel foam sheets, and the carbon nanofiber membrane are stacked at the first end; two second nickel rings, two second foam nickel sheets and the carbon nanofiber membrane are stacked at the second end; the parts of the two first nickel rings and the parts of the two second nickel rings sealed in the tube body are used for clamping and fixing the first foamed nickel sheet, the second foamed nickel sheet and the carbon nanofiber membrane in the tube body, and the parts of the first nickel rings and the second nickel rings outside the tube body are used for forming electric connection with the electrified lead.
In other embodiments of the present application, the tube body is a sealed tube formed by a square tube with both ends open and sealing caps with both ends through high-temperature melting.
In other embodiments of the present application, the tube body has a flat, elongated shape, and the carbon nanofiber film is disposed parallel to the flat surface of the tube body.
In other embodiments of the present application, the filamentous nanocarbon film infrared radiation heating pipe further comprises an insulating cover for covering the first nickel ring or the second nickel ring; the insulating cover is provided with a through hole, and the free end of the electrified lead penetrates out of the through hole.
In other embodiments of the present application, the tube body has glass dots left by the fusion sealing process after evacuation.
In other embodiments of the present application, the filamentous nanocarbon film has a thickness of 30 to 100. mu.m, and an areal density of 6 to 20g/m2The conductivity is 2000-5000S/m, and the average fiber diameter is 100-500 nm.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a carbon nanofiber membrane infrared radiation heating tube provided in an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a nano carbon fiber film infrared radiation heating tube provided in an embodiment of the present application in a length direction;
FIG. 3 is an enlarged schematic view of a portion of FIG. 2;
fig. 4 is a schematic view of a first nickel ring of a nano carbon fiber film infrared radiation heating tube provided in an embodiment of the present application;
fig. 5 is a cross-sectional view of a heating tube for infrared radiation of carbon nanofiber membrane provided in an embodiment of the present application in a width direction;
fig. 6 is a schematic view of another view angle of the filamentous nanocarbon film infrared radiation heating tube according to the embodiment of the present application.
Icon: 100-carbon nanofiber membrane infrared radiation heating pipe; 110-a tube body; 111-square tube; 1112-a first open end; 1113-a second open end; 112-a sealing cover; 113-an insulating cover; 1131-through hole; 114-glass dots; 120-carbon nanofiber membranes; 131-a first electrode; 1312-a first nickel ring; 1313-first nickel foam sheet; 132-a second electrode; 1322-a second nickel ring; 1323 — a second piece of nickel foam; 140-energized conductor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 6, an embodiment of the present application provides a nano carbon fiber film infrared radiation heating tube 100, including: a tube 110, a carbon nanofiber membrane 120, electrodes, and a current conducting wire 140.
Further, the tube body 110 is a sealed tube formed by high temperature melting of a square tube 111 opened at both ends and sealing caps 112 at both ends.
Further, square tube 111 has a first open end 1112 and an opposing second open end 1113. The sealing cap 112 is sealed with the rectangular tube 111 at the first open end 1112 and the second open end 1113 of the rectangular tube 111 by high-temperature melting, thereby forming a sealed tube.
In some embodiments of the present application, the material of the square tube 111 is quartz glass.
In some embodiments of the present application, the sealing cap 112 is made of quartz glass.
Further, in some embodiments of the present application, the sealing cap 112 and the square tube 111 are made of the same material and are made of quartz glass, so that the sealing connection can be achieved by heating and melting. Specifically, the square tube 111 and the seal cap 112 are heated to melt them, and cooled to form a seal.
In the illustrated embodiment, since a gap for the electrode to penetrate through the square tube 111 is provided between the inner wall of the square tube 111 and the sealing cover 112, the size of the sealing cover 112 is slightly smaller than the opening of the square tube 111. The sealing effect can still be formed after the heating, melting and cooling.
The inside of the square tube 111 can be kept in a sealed state by arranging the sealing cover 112, so that the air can be prevented from entering the square tube 111, and the carbon nanofiber membrane 120 inside the square tube 111 is oxidized.
Further, in some embodiments of the present invention, the tube 110 is shaped as a flat, long strip.
Further, the filamentous nanocarbon film 120 is disposed in parallel with the flat surface of the tube body 110.
In the illustrated embodiment, the two surfaces of the flat, elongated tube body 110 that face each other are flat surfaces, and the carbon nanofiber film 120 is disposed parallel to the two flat surfaces of the tube body 110.
By configuring the shape of the tube body 110 as a flat and long strip shape, compared with a conventional round tube-shaped carbon fiber heating tube, the volume of the flat and long strip-shaped tube body 110 is smaller; so that the volume of the heating pipe can be greatly reduced.
Further, the tube 110 has a glass bead 114 left after the melting and sealing process after the vacuum is applied.
The inside of the tube body 110 is evacuated to further protect the filamentous nanocarbon film 120 inside the tube body 110.
Further, the filamentous nanocarbon film 120 is laid in the length direction of the tube body 110 inside the tube body 110.
Further, referring to fig. 5 and 6, an insulating cap 113 is provided outside the sealing cap 112 to cover the pipe body 110. The insulating cover 113 is used to cover the first nickel ring 1312 or the second nickel ring 1322.
By providing the insulating cover 113, electric leakage can be effectively avoided.
Further, the insulating cover 113 has a through hole 1131, and the free end of the power conducting wire 140 penetrates through the through hole 1131.
The through hole 1131 is provided to facilitate the passing of the power conducting wire 140 out of the insulating cover 113 for connecting with an external power source.
Further, the electrodes include a first electrode 131 and a second electrode 132.
Further, the first electrode 131 includes a first nickel ring 1312 and a first nickel foam sheet 1313.
Further, the second electrode 132 includes a second nickel ring 1322 and a second nickel foam sheet 1323.
Further, a first nickel ring 1312 and a first nickel foam sheet 1313 are disposed at a first end of the filamentous nanocarbon film 120.
Further, a second nickel ring 1322 and a second nickel foam sheet 1323 are disposed at a second end of the filamentous nanocarbon membrane 120.
In the illustrated embodiment, the first and second nickel foam sheets 1313, 1323 are sized to have the same size as the contact surfaces of the first and second nickel rings 1312, 1322.
Through setting up first foam nickel piece 1313 and second foam nickel piece 1323 not only can play the effect of buffering shock attenuation, also can play the effect of switching on.
In some embodiments of the present application, each of the first nickel ring 1312 and the second nickel ring 1322 includes two, each of the first nickel foam sheet 1313 and the second nickel foam sheet 1323 includes two, and the two first nickel rings 1312, the two first nickel foam sheets 1313, and the filamentous nanocarbon membrane 120 are stacked at the first end; two second nickel rings 1322, two second nickel foam sheets 1323 are stacked on the carbon nanofiber membrane 120 at the second end.
Further, the two first nickel rings 1312 and the two second nickel rings 1322 sealed inside the tube body 110 are used for clamping and fixing the first nickel foam sheet 1313, the second nickel foam sheet 1323 and the carbon nanofiber membrane 120 inside the tube body 110, and the parts of the first nickel rings 1312 and the second nickel rings 1322 outside the tube body 110 are used for forming electrical connection with the power-on wires 140.
Referring to fig. 2 and 3, in the illustrated embodiment, two first nickel rings 1312 and two second nickel rings 1322 are each disposed at the first open end 1112 and at the second open end 1113. Likewise, two first nickel foam sheets 1313 and two second nickel foam sheets 1323 are provided at the first open end 1112 and the second open end 1113, so that the filamentous nanocarbon film 120 can be fixed from both ends.
Further, the carbon nanofiber membrane 120 has a thickness of 30 to 100 μm and an areal density of 6 to 20g/m2The conductivity is 2000-5000S/m, and the average fiber diameter is 100-500 nm.
Further alternatively, the carbon nanofiber membrane 120 has a thickness of 35 to 95 μm and an areal density of 7 to 19g/m2The conductivity is 2100-4800S/m, and the average fiber diameter is 150-450 nm.
Further alternatively, the carbon nanofiber membrane 120 has a thickness of 40 to 90 μm and an areal density of 8 to 18g/m2The conductivity is 2500 ℃ and 4500S/m, and the average diameter of the fiber is 200 ℃ and 400 nm.
Illustratively, the filamentous nanocarbon film 120 has a thickness of 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, or 85 μm and an areal density of 9, 10, 11, 12, 13, 14, 15, 16, or 17g/m2The conductivity is 2500S/m, 3000S/m, 3500S/m or 4000S/m, and the average diameter of the fiber is 250nm, 300nm or 350 nm.
Further, the carbon nanofiber membrane 120 is prepared by preparing a precursor of carbon nanofiber, typically a polymer nanofiber membrane such as PAN, by an electrostatic spinning technique, and then performing high-temperature treatment processes such as pre-oxidation, carbonization, graphitization, and the like to obtain the carbon nanofiber membrane.
The carbon nanofiber membrane 120 prepared by the electrostatic spinning technology is in a large-size membrane shape, can be cut into any size and shape, has strong fiber continuity, has better conductivity than the traditional woven carbon fiber cloth or needle-punched carbon fiber felt, has thin thickness and small density, and can be used as a membrane-shaped infrared heating body with excellent performance.
Compare in micron order carbon fiber heating wire, the carbon nanofiber membrane 120's of this application fibre diameter is thinner, and specific surface area is bigger, and the quantity of carbon fiber silk is more in the unit volume, and is network structure, can provide higher heating efficiency, and far infrared emissivity is also higher. In addition, micron order carbon fiber heating wire is threadiness, and when single fibre broke off, this fibre just lost the function of generating heat because of forming the broken circuit, and the difference is that nanometer carbon fiber membrane 120 of this application is the sheet material, and the fibre diameter forms three-dimensional conductive network, does not have the condition that appears the broken circuit because of the broken wire, and membrane intensity is better, and is comparatively durable.
This application embodiment is applied to the heating pipe with carbon nanofiber membrane 120 as heating material in, and is different from conventional linear heating body, can reach better infrared heating effect, need not increase quartz glass pipe size and remove to hold more carbon fiber silk like the carbon fiber heating pipe. And the carbon nanofiber membrane has small density and thin thickness, so that the manufactured heating element is thinner and lighter.
Illustratively, the filamentous nanocarbon film infrared radiation heating pipe 100 of the present application is used as follows:
when the heating tube is used, an external power supply supplies power to the nano carbon fiber membrane infrared radiation heating tube 100 through the electric conduction wire 140, and the electric current passes through the first nickel ring 1312, the first nickel foam sheet 1313, the second nickel foam sheet 1323, the second nickel foam sheet 1322 and passes through the nano carbon fiber membrane 120, so that the nano carbon fiber membrane 120 heats and heats. Through tests, the power of the carbon nanofiber membrane infrared radiation heating tube 100 provided by the embodiment of the application is 800W, the temperature rises to 800 ℃ within 50 seconds under 220V alternating voltage, and the temperature rise rate is 16 ℃/s. Compare in present carbon silk type carbon fiber heating pipe, the carbon nanofiber membrane infrared radiation heating pipe 100 volume that this application embodiment provided is littleer, infrared radiation is higher, the rate of rise is faster, the electric heat conversion efficiency is higher.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. A carbon nanofiber membrane infrared radiation heating pipe is characterized by comprising:
a pipe body;
the carbon nanofiber membrane is laid in the pipe body along the length direction of the pipe body;
electrodes including a first electrode and a second electrode, the first electrode, the carbon nanofiber membrane, the second electrode being disposed within the tube; and
and the electrifying lead is connected to the electrode, and the free end of the electrifying lead is arranged outside the tube body.
2. The carbon nanofiber membrane infrared radiation heating pipe as claimed in claim 1,
the first electrode comprises a first nickel ring and a first foamed nickel sheet; the first nickel ring and the first foamed nickel sheet are arranged at the first end of the carbon nanofiber membrane; the second electrode comprises a second nickel ring and a second foam nickel sheet; the second nickel ring and the second nickel foam sheet are arranged at the second end of the carbon nanofiber membrane.
3. The carbon nanofiber membrane infrared radiation heating pipe as claimed in claim 2,
the first nickel ring and the second nickel ring comprise two, the first foamed nickel sheet and the second foamed nickel sheet comprise two, and the two first nickel rings, the two first foamed nickel sheets and the carbon nanofiber membrane are stacked at the first end; the two second nickel rings, the two second foam nickel sheets and the carbon nanofiber membrane are stacked at the second end; the parts of the two first nickel rings and the parts of the two second nickel rings sealed in the tube body are used for clamping and fixing the first foamed nickel sheet, the second foamed nickel sheet and the carbon nanofiber membrane in the tube body, and the parts of the first nickel rings and the second nickel rings outside the tube body are used for forming electric connection with the electrified lead.
4. The filamentous nanocarbon infrared radiation heating pipe of claim 1, wherein the pipe body is a sealed pipe formed by a square pipe with both ends open and sealing covers at both ends through high temperature melting.
5. The carbon nanofiber membrane infrared radiation heating pipe as claimed in claim 4,
the shape of the tube body is a flat strip shape, and the nano carbon fiber film is arranged in parallel with the flat surface of the tube body.
6. The carbon nanofiber membrane infrared radiation heating pipe as claimed in claim 2,
the nano carbon fiber film infrared radiation heating pipe also comprises an insulating cover which is used for coating the first nickel ring or the second nickel ring; the insulating cover is provided with a through hole, and the free end of the electrifying wire penetrates out of the through hole.
7. The carbon nanofiber membrane infrared radiation heating pipe as claimed in claim 1,
and glass round points are left on the tube body after vacuum pumping and fusion sealing treatment.
8. The carbon nanofiber membrane infrared radiation heating pipe as claimed in claim 1,
the thickness of the carbon nanofiber membrane is 30-100 mu m, and the surface density is 6-20g/m2The conductivity is 2000-5000S/m, and the average fiber diameter is 100-500 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022539545.3U CN213426507U (en) | 2020-11-05 | 2020-11-05 | Carbon nanofiber membrane infrared radiation heating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022539545.3U CN213426507U (en) | 2020-11-05 | 2020-11-05 | Carbon nanofiber membrane infrared radiation heating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213426507U true CN213426507U (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022539545.3U Active CN213426507U (en) | 2020-11-05 | 2020-11-05 | Carbon nanofiber membrane infrared radiation heating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213426507U (en) |
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- 2020-11-05 CN CN202022539545.3U patent/CN213426507U/en active Active
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