CN109392202B - Electric heater with scale inhibition surface made of electric insulating material - Google Patents
Electric heater with scale inhibition surface made of electric insulating material Download PDFInfo
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- CN109392202B CN109392202B CN201810855760.9A CN201810855760A CN109392202B CN 109392202 B CN109392202 B CN 109392202B CN 201810855760 A CN201810855760 A CN 201810855760A CN 109392202 B CN109392202 B CN 109392202B
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- 230000005764 inhibitory process Effects 0.000 title claims abstract description 11
- 239000011810 insulating material Substances 0.000 title description 7
- 238000005485 electric heating Methods 0.000 claims abstract description 187
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 154
- 239000011521 glass Substances 0.000 claims abstract description 143
- 239000000919 ceramic Substances 0.000 claims abstract description 119
- 229910052709 silver Inorganic materials 0.000 claims abstract description 102
- 239000004332 silver Substances 0.000 claims abstract description 102
- 239000004809 Teflon Substances 0.000 claims abstract description 81
- 229920006362 Teflon® Polymers 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000002844 melting Methods 0.000 claims abstract description 31
- 230000008018 melting Effects 0.000 claims abstract description 26
- 239000011247 coating layer Substances 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 19
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 14
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011575 calcium Substances 0.000 claims abstract description 14
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 14
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 14
- 238000005245 sintering Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000012774 insulation material Substances 0.000 claims abstract description 7
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 130
- 239000011248 coating agent Substances 0.000 claims description 94
- 238000000576 coating method Methods 0.000 claims description 94
- 239000003575 carbonaceous material Substances 0.000 claims description 91
- 239000004065 semiconductor Substances 0.000 claims description 64
- 229910052751 metal Inorganic materials 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 50
- 238000010438 heat treatment Methods 0.000 claims description 48
- 239000007888 film coating Substances 0.000 claims description 45
- 238000009501 film coating Methods 0.000 claims description 45
- 238000009413 insulation Methods 0.000 claims description 45
- 238000001035 drying Methods 0.000 claims description 43
- 239000002131 composite material Substances 0.000 claims description 40
- 238000002156 mixing Methods 0.000 claims description 28
- 235000019353 potassium silicate Nutrition 0.000 claims description 28
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 28
- 239000007769 metal material Substances 0.000 claims description 20
- 239000010410 layer Substances 0.000 claims description 18
- 238000007598 dipping method Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 15
- 230000002401 inhibitory effect Effects 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 241000221785 Erysiphales Species 0.000 claims description 9
- 239000012777 electrically insulating material Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 8
- 239000012460 protein solution Substances 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 230000026030 halogenation Effects 0.000 claims description 6
- 238000005658 halogenation reaction Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 210000003298 dental enamel Anatomy 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000000197 pyrolysis Methods 0.000 claims description 4
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 3
- 238000007751 thermal spraying Methods 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 238000003763 carbonization Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- -1 drying Substances 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000005118 spray pyrolysis Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- 239000012772 electrical insulation material Substances 0.000 claims 4
- 238000007654 immersion Methods 0.000 claims 2
- 238000005516 engineering process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 235000009120 camo Nutrition 0.000 description 3
- 235000005607 chanvre indien Nutrition 0.000 description 3
- 239000011487 hemp Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/021—Heaters specially adapted for heating liquids
Landscapes
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
Abstract
An electric heater with a heat release surface as an electric insulation material surface scale inhibition is characterized in that a coating layer of an electric heating film is coated on the surface of a framework, the electric heating film is prepared by sintering, conductive silver paste is coated on the surface of a proper position of the electric heating film, a silver electrode is baked out by an oven, then ceramic glass glaze or a glass sleeve or a Teflon material is coated on the surface of the electric heating film and part of the silver electrode, and after baking or hot melting, an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface is baked out by the oven, so that an electric heater with at least two heat release surfaces and at least one electric heating loop of the electric heating film is prepared; and connecting an electric wire with the silver electrode to obtain the electric heating core. The electric lead is led out by the sealing rubber sleeve, and the electrode is sealed, installed and fixed on the installation base provided with the connecting device. The insulating ceramic glaze has weak binding force between calcium and magnesium ions, and hard scale is not easy to form. The power control device is simple and reliable in structure, convenient in power control, high in safety, low in manufacturing cost, easy to process and good in performance.
Description
Technical Field
The invention relates to the field of electric heating, in particular to an electric scale-inhibiting heater with a heat release surface made of an electric insulating material.
Background
The existing electric heater generally adopts a mode that magnesia powder in a metal tube is filled with heating wires, and the metal tube is conductive, so that the surface of the metal tube can be scaled, the heat transfer effect is poor, the metal electric heating tube is extremely high in temperature, the metal tube is extremely easy to corrode, and the service life is shortened. However, the quartz glass electric heater is difficult to scale, but because the heat radiating area and the power density of the single tube need to be matched, the large power tube needs to be made into a larger volume to meet the power requirement, and the excessively large volume causes a plurality of inconveniences in the aspects of strength, installation space, safety, manufacturing cost and the like, and the power regulation and control are difficult.
Disclosure of Invention
The invention provides an electric heater with a heat release surface made of an electric insulating material, which can realize the requirements of high strength, large heat release area, small volume, safety, reliability, low manufacturing cost, no scaling and the like, and can realize convenient power regulation.
In order to achieve the technical purpose, the invention adopts the following technical scheme: an electric heater with scale-inhibiting surface of electrically insulating material is composed of skeleton, electrothermal film, electrodes and connecting wires. The heating surface of the electric heater is an electric insulating material surface, and comprises an electric insulating ceramic glaze surface, a glass lining surface, an enamel surface and a Teflon electric insulating film layer, so that the binding force of calcium and magnesium ions is weak, and hard scale is not easy to form. The electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, and comprises a quartz glass framework, a microcrystalline glass framework and a ceramic framework. The surface of the skeleton is smooth or frosted or halogenated, and the doped semiconductor nano conductive film material is produced on the surface of the high-temperature-resistant insulating skeleton matrix through chemical vapor deposition, spray pyrolysis, ion sputtering, evaporation and other film processes. If the surface of the heating skeleton is sprayed with thermal decomposition oxidation agent to prepare tin dioxide semiconductor electrothermal film coating, the surface of proper position of the electrothermal film is coated with conductive silver paste, the silver electrode is baked out by oven, the surface of the tin dioxide semiconductor electrothermal film and partial silver electrode are coated with ceramic glass glaze, after drying, the ceramic glaze is baked out by oven to prepare the electric heater with at least two radiating surfaces and at least one tin dioxide semiconductor electrothermal film electrothermal loop. Or coating a coating layer for preparing a tin dioxide semiconductor electrothermal film on the surface of the framework, preparing the tin dioxide semiconductor electrothermal film by sintering, coating conductive silver paste on the surface of a proper position of the tin dioxide semiconductor electrothermal film, baking a silver electrode by an oven, coating ceramic glass glaze or a glass sleeve or Teflon material on the surface of the tin dioxide semiconductor electrothermal film and a part of the silver electrode, baking or hot melting, baking the ceramic glass glaze, the glass surface and the Teflon material by the oven, and preparing the electric heater with at least two radiating surfaces and at least one tin dioxide semiconductor electrothermal film electrothermal loop.
Or coating a coating layer for preparing a tin dioxide semiconductor electrothermal film on the surface of the electric heater framework, after drying, coating conductive silver paste on the surface of a proper position coated with the coating layer for preparing the tin dioxide semiconductor electrothermal film, after drying, baking the tin dioxide semiconductor electrothermal film and a silver electrode by an oven, then coating ceramic glass glaze or a glass sleeve or Teflon material on the surface of the tin dioxide semiconductor electrothermal film and a part of the silver electrode, baking the ceramic glass glaze, the glass surface and the Teflon surface by the oven after drying or hot melting, and preparing the electric heater comprising at least two radiating surfaces and at least one tin dioxide semiconductor electrothermal film electrothermal loop.
Or coating a coating layer for preparing a tin dioxide semiconductor electrothermal film on the surface of the electric heater framework, drying, coating conductive silver paste on the surface of a proper position coated with the coating layer for preparing the tin dioxide semiconductor electrothermal film, drying, coating ceramic glass glaze or a sleeved glass sleeve or Teflon material on the surface of the tin dioxide semiconductor electrothermal film and part of the conductive silver paste film, baking or hot melting, and baking the ceramic glass sleeve or Teflon material by an oven to prepare the electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface, wherein at least two radiating surfaces are arranged, and the electric heater comprises at least one tin dioxide semiconductor electrothermal film electrothermal loop. And connecting an electric wire with the silver electrode to obtain the electric heating core. The electrically insulating ceramic glaze has weak binding force between calcium and magnesium ions, and hard scale is not easy to form.
The silver electrode and the electric lead are led out by combining the high temperature resistant sealing rubber sleeve through the high temperature resistant electric insulation plug. The electric lead of the electric heater framework is sealed and fixed on the installation base provided with the connecting device by the sealing rubber sleeve, the installation base is provided with a through hole for leading out the electric lead to pass through, and the high-temperature resistant and electric insulation sealing rubber is filled in the through hole for fixing the lead out the electric lead, so that the electric lead is difficult to tear in the use process, and the lead out electric lead is welded with a wiring terminal convenient for electric connection.
The method for forming tin dioxide electrothermal film on the inner wall of electric heater skeleton includes dipping method, thermal spraying, vapor deposition method (gaseous vapor deposition) and magnetron sputtering. The dipping method is to clean the surface of the electric heater framework, directly dip or spray the liquid medicine on two opposite large surfaces of the electric heater framework, dry the electric heater framework, and bake the electric heater framework in a furnace at high temperature. Or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework is immersed or sprayed with liquid medicine, the insulating support is taken down after drying, and then the electric heater framework is put into a furnace for baking at high temperature. Or the powdery mildew paste is coated on the surface of the framework of the electric heater in a scribing way, so that the plated film has reasonable patterns, proper surface load and optimal heating distribution are obtained, (the film is not plated in the places with the powdery mildew). Then dipping or coating the liquid medicine, drying, and then putting into a furnace for baking at high temperature. And (3) taking the film out of the furnace for cooling after the film is plated, coating conductive silver paste at a proper position, then sending the conductive silver paste into an oven, baking a silver electrode, coating ceramic glass glaze or a glass sleeve on the surface of the tin dioxide semiconductor electric heating film and part of the silver electrode, and baking the surface or the glass sleeve to obtain the ceramic glaze, the glass surface and the Teflon surface through the oven after drying or hot melting.
An electric heater with scale-inhibiting surface of electrically insulating material is composed of skeleton, electrothermal film, electrodes and connecting wires. The electric heater heating surface is scale-inhibited by an electric insulation ceramic glaze, and the electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, wherein the electric heater framework comprises a quartz glass framework, a microcrystalline glass framework and a ceramic framework. The surface of the framework is a smooth surface or a surface subjected to frosting or halogenation treatment. Coating a carbon material electrothermal film on the surface of a framework, preparing the carbon material electrothermal film through carbonization and sintering, coating conductive silver paste on the surface of a proper position of the carbon material electrothermal film, baking a silver electrode through an oven, coating ceramic glass glaze or a sleeved glass sleeve or Teflon material on the surface of the carbon material electrothermal film and part of the silver electrode, baking or hot melting the glass sleeve or Teflon material through the oven, and baking the ceramic glaze, the glass surface and the Teflon surface to prepare the electric heater with at least two radiating surfaces and at least one electric heating loop.
Or coating the surface of the electric heater framework with a coating layer for preparing the carbon material electric heating film, drying, coating conductive silver paste on the surface of a proper position coated with the coating layer for preparing the carbon material electric heating film, baking the carbon material electric heating film and the silver electrode by an oven, coating ceramic glass glaze on the surface of the carbon material electric heating film and part of the silver electrode, or sleeving a glass sleeve, or Teflon material, baking or hot melting, baking by the oven to obtain the electric heater comprising the ceramic glaze, the glass surface and the Teflon surface, and forming the electric heater with at least two radiating surfaces and at least one carbon material electric heating film electric heating loop.
Or coating a coating layer for preparing the carbon material electrothermal film on the surface of the electric heater framework, drying, coating conductive silver paste on the surface of a proper position coated with the carbon material electrothermal film coating layer, drying, coating ceramic glass glaze on the surface of the carbon material electrothermal film and part of the conductive silver paste film, or sleeving a glass sleeve or Teflon material, drying or hot melting, and baking the ceramic glaze, the glass surface and the Teflon surface by an oven to prepare the electric heater with at least two radiating surfaces and at least one electric heating loop of the carbon material electrothermal film. And connecting an electric wire with the silver electrode to obtain the electric heating core. The electrically insulating ceramic glaze has weak binding force between calcium and magnesium ions, and hard scale is not easy to form.
The silver electrode and the electric lead are led out by combining the high temperature resistant sealing rubber sleeve through the high temperature resistant electric insulation plug. The electric lead of the electric heater framework is sealed and fixed on the installation base provided with the connecting device by the sealing rubber sleeve, the installation base is provided with a through hole for leading out the electric lead to pass through, and the high-temperature resistant and electric insulation sealing rubber is filled in the through hole for fixing the lead out the electric lead, so that the electric lead is difficult to tear in the use process, and the lead out electric lead is welded with a wiring terminal convenient for electric connection.
The electric heater skeleton is one with strip, angle, arc, hemp, pipe and corrugated shape. The method for forming the electrothermal film of the framework carbon material of the electric heater comprises the methods of dipping, spraying and the like. Cleaning the surface of the electric heater framework, directly soaking or spraying a coating comprising sugar water solution, protein solution or glue on two opposite large surfaces of the electric heater framework, drying, and then placing into a furnace for dry distillation and baking at high temperature to obtain the carbon material electrothermal film. Or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with a coating containing sugar water solution, protein solution or glue, then the electric heater framework surface is dried, the insulating support is taken down, and the electric heater framework surface is put into a furnace to be dry distilled and baked at high temperature to prepare the carbon material electric heating film. Or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with a coating containing sugar water solution, protein solution or glue, then the electric heater framework surface is dried, the insulating support is taken down, and the electric heater framework surface is put into a furnace to be dry distilled and baked at high temperature to prepare the carbon material electric heating film. Or the powdery mildew paste is coated on the surface of the framework of the electric heater in a scribing way, so that the plated film has reasonable patterns, proper surface load and optimal heating distribution are obtained, (the film is not plated in the places with the powdery mildew). Then dipping or spraying the carbon material electrothermal film which comprises sugar water solution, protein solution or glue coating, drying, and then putting into a furnace for dry distillation and baking at high temperature. And (3) taking the carbon material electrothermal film out of the furnace for cooling, coating conductive silver paste at a proper position, sending the conductive silver paste into an oven, baking a silver electrode, coating ceramic glass glaze or a glass sleeve on the surface of the electrothermal film and part of the silver electrode, and baking or hot-melting the ceramic glass glaze, the glass surface and the Teflon surface by the oven.
An electric heater with scale-inhibiting surface of electrically insulating material is composed of skeleton, electrothermal film, electrodes and connecting wires. The electric heater heating surface is scale-inhibited by an electric insulation ceramic glaze, and the electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, wherein the electric heater framework comprises a quartz glass framework, a microcrystalline glass framework and a ceramic framework. The surface of the framework is a smooth surface or a surface subjected to frosting or halogenation treatment. And (3) coating an electrothermal film coating prepared by mixing water glass and a carbon material or an electrothermal film coating prepared by mixing water glass and a metal powder material on the surface of the electric heating skeleton, drying, and sintering by an oven to prepare the composite carbon material electrothermal film or the composite metal material electrothermal film. Then, the surface of the proper position of the electric heater skeleton of the composite carbon material electric heating film or the composite metal material electric heating film is coated with conductive silver paste, after drying, a silver electrode is baked out through an oven, then the surface of the composite carbon material electric heating film or the composite metal material electric heating film and a part of the silver electrode are coated with ceramic glass glaze or a sleeved glass sleeve or Teflon material, after drying or hot melting, an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface is baked out through the oven, and at least two radiating surfaces comprising at least one composite carbon material electric heating film or a composite metal material electric heating loop are manufactured.
Or the surface of the electric heating skeleton is coated with an electrothermal film coating prepared by mixing water glass and carbon materials or an electrothermal film coating prepared by mixing water glass and metal powder materials, then the electric heating skeleton is dried, then the surface of the proper position of the electric heating skeleton is coated with conductive silver paste, after the electric heating skeleton is dried, the composite carbon material electrothermal film coating or the composite metal material electrothermal film and the silver electrode are baked out by an oven, the surface of the composite carbon material electrothermal film or the composite metal material electrothermal film and part of the silver electrode is coated with ceramic glass glaze or a sleeve glass or a Teflon material, and after the electric heating skeleton is dried or hot melted, the electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface is baked out by the oven, and is provided with at least two radiating surfaces and comprises at least one composite carbon material electrothermal film or composite metal material electrothermal film electrothermal circuit.
Or the surface of the electric heating skeleton is coated with an electrothermal film coating prepared by mixing water glass and carbon materials or an electrothermal film coating prepared by mixing water glass and metal powder materials, then the electric heating skeleton is dried, then the surface of the proper position of the electric heating skeleton is coated with conductive silver paste, after the electric heating skeleton is dried, the surface of the composite carbon material electrothermal film coating or the composite metal material electrothermal film coating and partial conductive silver paste are coated with ceramic glass glaze, or a glass sleeve is sleeved or Teflon material, after the electric heating skeleton is dried or hot-melted, an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface and at least two radiating surfaces and comprising at least one composite carbon material electrothermal film or a composite metal material electrothermal film electrothermal loop is prepared by baking. And connecting an electric wire with the silver electrode to obtain the electric heating core. The electrically insulating ceramic glaze has weak binding force between calcium and magnesium ions, and hard scale is not easy to form.
The silver electrode and the electric lead are led out by combining the high temperature resistant sealing rubber sleeve through the high temperature resistant electric insulation plug. The electric lead of the electric heater framework is sealed and fixed on the installation base provided with the connecting device by the sealing rubber sleeve, the installation base is provided with a through hole for leading out the electric lead to pass through, and the high-temperature resistant and electric insulation sealing rubber is filled in the through hole for fixing the lead out the electric lead, so that the electric lead is difficult to tear in the use process, and the lead out electric lead is welded with a wiring terminal convenient for electric connection.
The electric heater skeleton is one with strip, angle, arc, hemp, pipe and corrugated shape. The method for forming the electrothermal film of the framework carbon material of the electric heater comprises the methods of dipping, spraying and the like. Cleaning the surface of the electric heater framework, directly dipping or spraying an electrothermal film coating prepared by mixing water glass and carbon materials on two opposite large surfaces of the electric heater framework, or an electrothermal film coating prepared by mixing water glass and metal powder materials, then drying, and putting into a furnace to bake and sinter at high temperature to prepare the carbon material electrothermal film. Or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with an electric heating film coating prepared by mixing water glass and carbon materials, or an electric heating film coating prepared by mixing water glass and metal powder materials, then the electric heating film coating is dried, the insulating support is taken down, and the electric heating film is put into a furnace to be baked and sintered at high temperature to prepare the carbon material electric heating film. Or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with an electric heating film coating prepared by mixing water glass and carbon materials, or an electric heating film coating prepared by mixing water glass and metal powder materials, then the electric heating film coating is dried, the insulating support is taken down, and the electric heating film is put into a furnace to be baked and sintered at high temperature to prepare the carbon material electric heating film. Or the powdery mildew paste is coated on the surface of the framework of the electric heater in a scribing way, so that the plated film has reasonable patterns, proper surface load and optimal heating distribution are obtained, (the film is not plated in the places with the powdery mildew). Then dipping or spraying the electrothermal film coating prepared by mixing water glass and carbon materials, or the electrothermal film coating prepared by mixing water glass and metal powder materials, drying, and then putting into a furnace to bake and sinter at high temperature to prepare the carbon material electrothermal film. And (3) taking the carbon material electrothermal film out of the furnace for cooling, coating conductive silver paste at a proper position, sending the conductive silver paste into an oven, baking a silver electrode, coating ceramic glass glaze on the surface of the electrothermal film and part of the silver electrode, or sleeving a glass sleeve or Teflon material, and baking or hot-melting the ceramic glass glaze, the glass surface and the Teflon surface through the oven.
An electric heater with scale-inhibiting surface of electrically insulating material is composed of skeleton, electrothermal film, electrodes and connecting wires. The electric heater heating surface is scale-inhibited by an electric insulation ceramic glaze, and the electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, wherein the electric heater framework comprises a quartz glass framework, a microcrystalline glass framework and a ceramic framework. The surface of the framework is a smooth surface or a surface subjected to frosting or halogenation treatment. Winding an electric heating wire on the surface of the framework to prepare an electric heating wire heater, coating conductive silver paste on the end head of the electric heating wire and the winding end socket of the electric heater framework, and baking a silver electrode by an oven. The electric heater skeleton is made into a radiating surface by coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on a part of silver electrodes, baking or hot melting, and then baking the ceramic glass glaze, the glass surface and the Teflon surface by an oven to obtain an electric heater skeleton which is a radiating surface and comprises at least one electric heating loop, and the silver electrodes are connected with electric leads to obtain the electric heating core. The electrically insulating ceramic glaze has weak binding force between calcium and magnesium ions, and hard scale is not easy to form.
The silver electrode and the electric lead are led out by combining the high temperature resistant sealing rubber sleeve through the high temperature resistant electric insulation plug. The electric lead of the electric heater framework is sealed and fixed on the installation base provided with the connecting device by the sealing rubber sleeve, the installation base is provided with a through hole for leading out the electric lead to pass through, and the high-temperature resistant and electric insulation sealing rubber is filled in the through hole for fixing the lead out the electric lead, so that the electric lead is difficult to tear in the use process, and the lead out electric lead is welded with a wiring terminal convenient for electric connection.
The electric heater skeleton is one with strip, angle, arc, hemp, pipe and corrugated shape. The electric heater skeleton is wound with electric heating wires, including metal electric heating wires and carbon material electric heating wires. Winding a metal heating wire or a carbon material heating wire on an electric heater framework to manufacture an electric heater, coating conductive silver paste on the end head of the heating wire and a winding end socket of the electric heater framework, and baking a silver electrode by an oven. And (3) coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on the radiating surface of the electric heater framework and part of silver electrodes, baking or hot-melting, and then baking the ceramic glass glaze, the glass surface and the Teflon surface by an oven to prepare the electric heater framework serving as the radiating surface, wherein the electric heater comprises at least one electric heating loop, and the silver electrodes are connected with electric leads to prepare the electric heating core.
Or the electric heater is a corrugated pipe made of an electric heating metal plate, at least one group of electric heating loops are formed by slotting, and the electric heating metal plate surface is compounded with an electric heater heat release surface which is an electric insulation material surface and comprises an electric insulation ceramic glaze surface, a glass lining surface, an enamel surface and a Teflon electric insulation film layer for scale inhibition. If the end of the electrothermal metal plate is coated with conductive silver paste, the silver electrode is baked out by an oven. And (3) coating the electric heating metal plate with a Teflon electric insulation film layer, baking the electric heating metal plate, and baking the electric heating metal plate by an oven to obtain the Teflon electric insulation film layer compounded by the electric heating metal plate tube, wherein the Teflon electric insulation film layer is a radiating surface and comprises at least one electric heater of an electric heating loop, and an electric lead is connected to a silver electrode to obtain an electric heating core, wherein the electric heating metal plate tube is a longitudinal corrugated tube.
The electric heating film comprises at least one heating equivalent heating resistor, and an electric heating film compounded on the surface of the framework, which is divided and communicated by removing the film and keeping white, and the power of the electric heater is adjusted by the single connection, series connection and parallel connection of the heating elements of the electric heating film resistor.
An electric heater with scale-inhibiting surface of electric insulating material features that the silver electrode is coated or combined on the electrothermal film at the closed end of skeleton. An electric insulating annular clamping ring is arranged on the inner wall of the framework of the electric heater and connected with the silver electrode. The opposite surfaces of the electric insulating annular clamping ring are provided with metal connecting sheets coated with soldering tin for connecting the electric wires with the electric heating film, and metal electrodes are arranged between the electric heating film and the electric insulating annular clamping ring. At least two metal electrodes are respectively led out of at least two wires on the electric heater framework, wherein the long wires are formed by electrically insulating and coating conductive silver paste on the electric heater framework and an electric heating film, forming an electric wire after high-temperature sintering, then coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on the electric heater framework, baking or hot melting, and baking the ceramic glaze, the glass surface and the Teflon surface through an oven to form an electric insulating layer so as to prevent the long wires on the electric heater framework from electric leakage.
1. Because the scale-inhibiting electric heater mode with the heat release surface being the surface of the electric insulating material is adopted, the electric heater can be made to have smaller volume under the condition of the same heating area and power.
2. The electric heater with scale-inhibiting electric heating surface of electrically insulating material adopts non-metallic quartz glass section, microcrystalline glass section and ceramic section, which are not easy to produce scale during the electric heating process of water, so that the electric heater with scale-inhibiting electric heating surface of electrically insulating material has high cleaning surface and longer service life.
3. The section bar body structure is adopted, and the heating surface is uniform.
4. The pipe body is made of a quartz glass section, a microcrystalline glass section and a ceramic section, which are excellent insulators, so that the use is safer, and in addition, the use of metal components is reduced due to the fact that the pipe body is made of quartz glass materials, so that the pipe is more environment-friendly.
5. The water heater has the advantages of simple and reliable structure, convenient power regulation and control, high safety, low manufacturing cost, easy processing and good performance, and represents the future development direction of water heater application.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic side sectional view of a first embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 2 is a schematic elevational cross-sectional view of a first embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 3 is a schematic cross-sectional view of a first embodiment of the heater of the present invention in the form of a strip electric heater;
fig. 4 is an equivalent circuit diagram of a first embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 5 is a schematic side sectional view of a second embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 6 is a schematic diagram of a front cross-sectional structure of a second embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 7 is a schematic view of a schematic cross-sectional top view of a second embodiment of the heater of the present invention in the form of a strip electric heater;
fig. 8 is an equivalent circuit diagram of a second embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 9 is a schematic side sectional view of a third embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 10 is a schematic elevational cross-sectional view of a third embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 11 is a schematic cross-sectional view of a heater of the present invention in a schematic view showing a third embodiment of a strip electric heater;
fig. 12 is an equivalent circuit diagram of a third embodiment of the heater of the present invention in the form of a strip electric heater;
FIG. 13 is a schematic view showing a structure in front cross section of a fourth embodiment of a heater of the present invention which is a tubular electric heater;
FIG. 14 is a schematic view showing a structure of a heater of the present invention in a top cross-sectional view in a fourth embodiment of a tubular electric heater;
FIG. 15 is a schematic view showing a structure in front cross section of a fifth embodiment of a heater of the present invention which is a tubular electric heater;
FIG. 16 is a schematic view showing a structure of a heater of the present invention in a top cross-sectional view of a fifth embodiment of a tubular electric heater;
FIG. 17 is a schematic view showing a structure in front cross section of a sixth embodiment of a heater of the present invention which is a tubular electric heater;
FIG. 18 is a schematic view showing a structure of a heater of the present invention in a plan sectional view of a sixth embodiment of a tubular electric heater;
FIG. 19 is a schematic view showing a structure in front cross section of a seventh embodiment of a heater of the present invention which is a tubular electric heater;
FIG. 20 is a schematic view showing a structure of a heater of the present invention in a top cross-sectional view in a seventh embodiment of a tubular electric heater;
FIG. 21 is a schematic view showing a structure in front cross section of an eighth embodiment of a heater of the present invention which is a tubular electric heater;
FIG. 22 is a schematic view showing a structure of a heater of the present invention in a top cross-sectional view of an eighth embodiment of a tubular electric heater;
FIG. 23 is a schematic front sectional view of a ninth embodiment of a heater of the present invention which is a tubular electric heater;
Fig. 24 is a schematic view showing a structure of a heater of the present invention in a top cross-sectional view in a ninth embodiment of a tubular electric heater;
FIG. 25 is a schematic view showing a structure in front cross section of a tenth embodiment of a heater of the present invention which is a tubular electric heater;
Fig. 26 is a schematic view showing a structure of a heater of the present invention in a top cross-sectional view in a tenth embodiment of a tubular electric heater;
FIG. 27 is a schematic view showing a front sectional structure of an eleventh embodiment of a heater of the present invention which is a tubular electric heater;
fig. 28 is a schematic cross-sectional view showing a structure of an eleventh embodiment of a heater of the present invention which is a tube type electric heater.
In the figure: the electric lead 1, the silver electrode 2, the ceramic glaze 3, the electrothermal film 4, the electric heater skeleton 5, the electric insulation isolation groove 6, the mounting base 7, the temperature-resistant sealing gum cover 8, the sealing plug 9 and the protective end cover 10
Detailed Description
The first embodiment is as shown in fig. 1, 2, 3 and 4: the heat release surface is an electric heater with an electric insulation ceramic glaze scale inhibition, and the electric heater framework 5 is a strip-shaped ceramic framework. The surface of the electric heater skeleton 5 is smooth or frosted or halogenated. The surface of the electric heater framework 5 is coated with a coating for preparing a tin dioxide semiconductor electric heating film 4, after the tin dioxide semiconductor electric heating film 4 is prepared by sintering, the surface of a proper position of the tin dioxide semiconductor electric heating film 4 is coated with conductive silver paste, a silver electrode 2 is baked out by an oven, then the surface of the tin dioxide semiconductor electric heating film 4 and a part of the silver electrode are coated with ceramic glass glaze or a glass sleeve or Teflon material, after the baking or the hot melting, an electric heater comprising a ceramic glaze, a glass surface and Teflon surface and 3 is baked out by the oven, and at least two radiating surfaces including at least one electric heating loop of the tin dioxide semiconductor electric heating film 4 are prepared. An electric wire 1 is connected to the silver electrode 2 to form an electric heating core. The electric insulation ceramic glaze 3 makes the binding force of calcium and magnesium ions weak, and hard scale is not easy to form. The silver electrode 2 and the electric lead 1 are led out by the electrode sealing electric lead 1 through the arranged temperature-resistant sealing rubber sleeve 8. The electric lead of the electric heater skeleton 5 is sealed by a sealing rubber sleeve 8, and is installed and fixed on an installation base 7 provided with a connecting device in a sealing way, and the installation base 7 is provided with a through hole for leading out the electric lead 1. The high-temperature-resistant and electrically insulating sealant is filled in the through hole and used for fixing the lead-out wire, so that the lead-out wire is difficult to pull in the use process, and a wiring terminal convenient for electric connection is welded on the lead-out wire.
A second embodiment of the present invention is shown in fig. 5, 6, 7, 8: the surface of the electric heater framework 5 of the second embodiment is compounded with a tin dioxide semiconductor electric heating film 4, the tin dioxide semiconductor electric heating film 4 compounded on the surface of the end of the electric heater framework 5 is provided with a silver electrode 2, the silver electrode 2 is electrically insulated from one side surface of the electric heater framework 5 to lead out the silver electrode 2, and the electric heater of at least two heating units is compounded. Otherwise identical to the first embodiment.
Fig. 9, 10, 11 and 12 show a third embodiment of the present invention: in the third embodiment, a tin dioxide semiconductor electrothermal film 4 is compounded on the surface of an electric heater framework 5, the electrothermal film 4 is divided by an electric insulation isolation groove 6 on the surface of the electric heater framework 5, and a silver electrode 2 is compounded on the surface of the electrothermal film 4 at the bottom of the electric heater framework 5 to form an electric heater of at least two heating units. Otherwise identical to the first embodiment.
A fourth embodiment of the present invention shown in fig. 13 and 14: the electric heater framework 5 of the fourth embodiment is a profile framework, a tin dioxide semiconductor electric heating film 4 is compounded on the surface of the electric heater profile framework 5, and a silver electrode 2 is compounded on the surface of the bottom electric heating film 4 of the electric heater framework 5 to form an electric heater with two heating units on the inner surface and the outer surface of a pipe. Otherwise identical to the first embodiment.
Fig. 15 and 16 show a fifth embodiment of the present invention: the electric heater framework 5 of the fifth embodiment is a profile framework, a tin dioxide semiconductor electric heating film 4 is compounded on the surface of the electric heater profile framework 5, silver electrodes 2 are arranged on the surface of the tin dioxide semiconductor electric heating film 4 at the top end of the electric heater framework 5, the silver electrodes 2 are electrically insulated and led out from one side surface of the electric heater framework 5, and the electric heaters of at least two independent heating units are compounded. Otherwise identical to the first embodiment.
Fig. 17 and 18 show a sixth embodiment of the present invention: the electric heater skeleton 5 of the sixth embodiment is a profile skeleton, a tin dioxide semiconductor electric heating film 4 is compounded on the surface of the electric heater profile skeleton 5, the electric heating film 4 is divided by an electric insulation isolation groove 6 on the surface of the electric heater skeleton 5, and a silver electrode 2 is compounded on the surface of the electric heating film 4 at the bottom of the electric heater skeleton 5 to form an electric heater of at least two independent heating units. Otherwise identical to the first embodiment.
A seventh embodiment of the present invention as shown in fig. 19 and 20: the electric heater has a profile ceramic skeleton as the electric heater skeleton 5 and rough inner and outer surfaces of the profile electric heater skeleton 5. The inner and outer wall surfaces of the electric heater framework 5 are coated with a coating for preparing a tin dioxide semiconductor electric heating film 4, after the tin dioxide semiconductor electric heating film 4 is prepared by sintering, the surface of a proper position of the tin dioxide semiconductor electric heating film 4 is coated with conductive silver paste, a silver electrode 2 is baked out by an oven, then the surface of the tin dioxide semiconductor electric heating film 4 and part of the silver electrode 2 are coated with ceramic glass glaze, or a glass sleeve is sleeved with the glass sleeve, or Teflon material is baked out by the oven after being dried or hot melted, and an electric heater comprising a ceramic glaze, a glass surface and Teflon surface and 3 is prepared by the oven, wherein two tubular radiating surfaces are formed and the electric heater comprises at least one tin dioxide semiconductor electric heating film 4 electric heating loop. An electric wire 1 is connected to the silver electrode 2 to form an electric heating core. The electric insulation ceramic glaze 3 makes the binding force of calcium and magnesium ions weak, and hard scale is not easy to form. The silver electrode 2 and the electric lead 1 are led out by the electrode sealing electric lead 1 through the arranged temperature-resistant sealing rubber sleeve 8. The electric lead of the electric heater skeleton 5 is sealed by a sealing rubber sleeve 8, and is installed and fixed on an installation base 7 provided with a connecting device in a sealing way, and the installation base 7 is provided with a through hole for leading out the electric lead 1. The high-temperature-resistant and electrically insulating sealant is filled in the through hole and used for fixing the lead-out wire, so that the lead-out wire is difficult to pull in the use process, and a wiring terminal convenient for electric connection is welded on the lead-out wire. The electric heater is characterized in that the open end of the profile electric heater framework is sealed by a temperature-resistant sealing rubber sleeve 8 and a sealing plug 9, a connecting wire head is arranged on a mounting base 7, and an electric insulation sealing rubber is used for fixing an outgoing electric wire 1, so that the electric wire is difficult to pull in the use process. The lead-out electric wire 1 is welded with a connecting terminal which is convenient for electric connection. The mounting base 7 is provided with a protective cover 10.
Fig. 21 and 22 show an eighth embodiment of the present invention: the electric heater skeleton 5 of the eighth embodiment is a section ceramic skeleton, a tin dioxide semiconductor electric heating film 4 is compounded on the surface of the section ceramic skeleton, a silver electrode 2 is arranged on the tin dioxide semiconductor electric heating film 4 compounded on the surface of the end of the electric heater skeleton 5, the silver electrode 2 is electrically insulated from one side surface of the electric heater skeleton 5 to lead out the silver electrode 2, and the electric heaters of at least two heating units are compounded. Otherwise, the same as the seventh embodiment.
Fig. 23 and 24 show a ninth embodiment of the present invention: the electric heater skeleton 5 of the ninth embodiment is a ceramic skeleton with tin dioxide semiconductor electrothermal film 4 compounded on the surface, and the electrothermal film 4 is divided by an electric insulation isolation groove 6 on the surface of the electric heater skeleton 5, and silver electrodes 2 are compounded on the surface of the electrothermal film 4 at the bottom of the electric heater skeleton 5 to form an electric heater of at least two heating units. Otherwise, the same as the seventh embodiment.
A tenth embodiment of the present invention shown in fig. 25 and 26: the tenth embodiment of the electric heater skeleton 5 is a lath-shaped ceramic skeleton, a tin dioxide semiconductor electrothermal film 4 is compounded on the surface of the lath-shaped ceramic skeleton, a coating layer for preparing the tin dioxide semiconductor electrothermal film 4 is coated on the surface of the electric heater skeleton 5 and the inner wall surface and the outer wall surface of the electric heater skeleton 5, after the tin dioxide semiconductor electrothermal film 4 is prepared by sintering, conductive silver paste is coated on the surface of a proper position of the tin dioxide semiconductor electrothermal film 4, a silver electrode 2 is baked by an oven, then ceramic glass glaze is coated on the surface of the tin dioxide semiconductor electrothermal film 4 and a part of the silver electrode 2, or a glass sleeve is sleeved, or a Teflon material is baked or melted by the oven, and an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface is prepared by baking, 3, and two radiating surfaces are prepared, wherein the electric heater comprises at least one tin dioxide semiconductor electrothermal film 4 electrothermal circuit. An electric wire 1 is connected to the silver electrode 2 to form an electric heating core. The electric insulation ceramic glaze 3 makes the binding force of calcium and magnesium ions weak, and hard scale is not easy to form. The silver electrodes 2 and the electric leads 1 of the two strip-shaped electric heating cores are led out by the electrode sealing electric leads 1 through the temperature-resistant sealing rubber sleeve 8. The electric lead of the electric heater skeleton 5 is sealed by a sealing rubber sleeve 8, and is installed and fixed on an installation base 7 provided with a connecting device in a sealing way, and the installation base 7 is provided with a through hole for leading out the electric lead 1. The high-temperature-resistant and electrically insulating sealant is filled in the through hole and used for fixing the lead-out wire, so that the lead-out wire is difficult to pull in the use process, and a wiring terminal convenient for electric connection is welded on the lead-out wire. The electric heater is characterized in that the open end of the profile electric heater framework is sealed by a temperature-resistant sealing rubber sleeve 8 and a sealing plug 9, a connecting wire head is arranged on a mounting base 7, and an electric insulation sealing rubber is used for fixing an outgoing electric wire 1, so that the electric wire is difficult to pull in the use process. The lead-out electric wire 1 is welded with a connecting terminal which is convenient for electric connection. The mounting base 7 is provided with a protective cover 10.
An eleventh embodiment of the present invention shown in fig. 27, 28: the eleventh ninth embodiment of the electric heater framework 5 is a lath-shaped ceramic framework, and three electric heating cores are arranged on the installation base 7. Otherwise, it is equivalent to the tenth embodiment.
Claims (9)
1. The utility model provides an electric heater is scale inhibition of electrical insulation material face to heat face, includes electric heater skeleton, electrothermal film, electrode, connecting wire, characterized by: the heating surface of the electric heater is an electric insulation material surface, and comprises an electric insulation ceramic glaze surface, a glass lining surface, an enamel surface and a Teflon electric insulation film layer, so that the binding force of calcium and magnesium ions is weak, and hard scale is not easy to form; the electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, and comprises a quartz glass framework, a microcrystalline glass framework and a ceramic framework; the surface of the skeleton is a smooth surface or a frosted or halogenated surface, and the doped semiconductor nano conductive film material is generated on the surface of the high-temperature-resistant insulating skeleton matrix through film technology including chemical vapor deposition, spray pyrolysis, ion sputtering and evaporation; spraying a thermal decomposition oxidation agent on the surface of a heating framework to prepare a tin dioxide semiconductor electrothermal film coating, coating conductive silver paste on the surface of a proper position of the electrothermal film, baking a silver electrode by an oven, coating ceramic glass glaze on the surface of the tin dioxide semiconductor electrothermal film and part of the silver electrode, baking the ceramic glass glaze by the oven after drying, and preparing an electric heater with at least two radiating surfaces and at least one tin dioxide semiconductor electrothermal film electrothermal loop; the method for forming the tin dioxide electrothermal film on the inner wall of the electric heater framework comprises an immersion method, a thermal spraying method, an evaporation method and a magnetron sputtering method; or coating a coating layer for preparing a tin dioxide semiconductor electrothermal film on the surface of the framework, preparing the tin dioxide semiconductor electrothermal film by sintering, coating conductive silver paste on the surface of a proper position of the tin dioxide semiconductor electrothermal film, baking a silver electrode by an oven, coating ceramic glass glaze or a glass sleeve or Teflon material on the surface of the tin dioxide semiconductor electrothermal film and a part of the silver electrode, baking or hot melting, baking the ceramic glass glaze, the glass surface and the Teflon material by the oven, and preparing an electric heater comprising at least two radiating surfaces and at least one tin dioxide semiconductor electrothermal film electrothermal loop;
Or coating a coating layer for preparing a tin dioxide semiconductor electrothermal film on the surface of the electric heater framework, after drying, coating conductive silver paste on the surface of a proper position coated with the coating layer for preparing the tin dioxide semiconductor electrothermal film, after drying, baking the tin dioxide semiconductor electrothermal film and a silver electrode by an oven, then coating ceramic glass glaze or a glass sleeve or Teflon material on the surface of the tin dioxide semiconductor electrothermal film and a part of the silver electrode, baking the ceramic glass glaze or the glass sleeve or the Teflon material by the oven after drying or hot melting, and preparing an electric heater comprising at least two radiating surfaces and at least one tin dioxide semiconductor electrothermal film electrothermal loop;
Or coating a coating layer for preparing a tin dioxide semiconductor electrothermal film on the surface of the electric heater framework, after drying, coating conductive silver paste on the surface of a proper position coated with the coating layer for preparing the tin dioxide semiconductor electrothermal film, after drying, coating ceramic glass glaze or a sleeved glass sleeve or Teflon material on the surface of the tin dioxide semiconductor electrothermal film and part of the conductive silver paste film, and after drying or hot melting, baking the electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface through an oven to prepare an electric heater with at least two radiating surfaces and at least one tin dioxide semiconductor electrothermal film electrothermal loop; an electric lead is connected to the silver electrode to manufacture an electric heating core; the electric insulation ceramic glaze surface makes the binding force between calcium and magnesium ions weak, so that hard scale is not easy to form;
The electric heating film comprises at least one heating equivalent heating resistor, and is compounded on the surface of the framework, the electric heating film is divided and communicated by removing the film and keeping white, and the electric heating power of the electric heater is adjusted by the single connection, the series connection and the parallel connection of the heating bodies of the electric heating film resistor;
The silver electrode and the electric lead are led out by combining the high-temperature-resistant sealing rubber sleeve through the high-temperature-resistant electric insulation plug; the electric lead of the electric heater framework is sealed by a sealing rubber sleeve, the electric lead is sealed and mounted and fixed on a mounting base provided with a connecting device, the mounting base is provided with a through hole for leading out an electric lead to pass through, and the through hole is filled with high-temperature resistant and electrically insulating sealing rubber for fixing the lead-out lead, so that the lead-out lead is difficult to pull in the use process, and a wiring terminal convenient for electric connection is welded on the lead-out lead;
at least two metal electrodes are respectively led out of at least two wires on the electric heater framework, wherein the long wires are formed by electrically insulating and coating conductive silver paste on the electric heater framework and an electric heating film, forming an electric wire after high-temperature sintering, then coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on the electric heater framework, baking or hot melting, and baking the electric heater framework to form an electric insulating layer by an oven, wherein the electric insulating layer comprises a ceramic glaze, a glass surface and a Teflon surface, so that electric leakage of the long wires on the electric heater framework is prevented.
2. The method for manufacturing the electric heating core of the electric scale-inhibiting heater with the heat release surface being made of the electric insulation material according to claim 1, which is characterized in that: the method for forming the tin dioxide electrothermal film on the inner wall of the electric heater framework comprises an immersion method, a thermal spraying method, an evaporation method and a magnetron sputtering method; the dipping method is to clean the surface of the electric heater framework, directly dip or spray the liquid medicine on two opposite large surfaces of the electric heater framework, dry the electric heater framework, and bake the electric heater framework in a furnace at high temperature to obtain the electric heater framework; or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework is immersed or sprayed with liquid medicine, the insulating support is taken down after being dried, and then the electric heater framework is put into a furnace to be baked at high temperature to prepare the electric heater framework; or coating the powdery mildew paste on the surface of the electric heater framework by scribing, so that the plated film has a reasonable pattern to obtain proper surface load and optimal heating distribution; then dipping or coating the liquid medicine, drying, and then putting into a furnace to bake at high temperature to obtain the product; and (3) taking the film out of the furnace for cooling after the film is plated, coating conductive silver paste at a proper position, then sending the conductive silver paste into an oven, baking a silver electrode, coating ceramic glass glaze or a glass sleeve on the surface of the tin dioxide semiconductor electric heating film and part of the silver electrode, and baking the surface or the glass sleeve to obtain the ceramic glaze, the glass surface and the Teflon surface through the oven after drying or hot melting.
3. The utility model provides an electric heater is scale inhibition of electrical insulation material face to heat face, includes electric heater skeleton, electrothermal film, electrode, connecting wire, characterized by: the electric heater heating surface is scale-inhibited through an electric insulation ceramic glaze, the electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, and the electric heater frameworks comprise quartz glass frameworks, microcrystalline glass frameworks and ceramic frameworks; the method for forming the electric heater skeleton carbon material electric heating film comprises dipping and spraying; the surface of the framework is a smooth surface or a surface subjected to frosting or halogenation treatment; coating a carbon material electrothermal film on the surface of a framework, preparing the carbon material electrothermal film through carbonization and sintering, coating conductive silver paste on the surface of a proper position of the carbon material electrothermal film, baking a silver electrode through an oven, coating ceramic glass glaze or a sleeved glass sleeve or Teflon material on the surface of the carbon material electrothermal film and part of the silver electrode, baking or hot melting the glass sleeve or Teflon material through the oven, and preparing an electric heater comprising at least two radiating surfaces and at least one electric heating loop;
Or coating a coating layer for preparing a carbon material electrothermal film on the surface of the electric heater framework, drying, coating conductive silver paste on the surface of a proper position coated with the coating layer for preparing the carbon material electrothermal film, baking the carbon material electrothermal film and a silver electrode by an oven, coating ceramic glass glaze on the surface of the carbon material electrothermal film and a part of the silver electrode, or sleeving a glass sleeve, or Teflon material, baking or hot melting, baking by the oven to obtain an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface, and preparing an electric heater with at least two radiating surfaces and at least one carbon material electrothermal film electrothermal loop;
Or coating a coating layer for preparing a carbon material electrothermal film on the surface of the electric heater framework, after drying, coating conductive silver paste on the surface of a proper position coated with the coating layer for preparing the carbon material electrothermal film, after drying, coating ceramic glass glaze on the surface of the carbon material electrothermal film and part of the conductive silver paste film, or sleeving a glass sleeve or Teflon material, after drying or hot melting, baking the ceramic glass sleeve or Teflon material by an oven to prepare an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface, wherein the electric heater is provided with at least two radiating surfaces and comprises at least one electric heating loop of the carbon material electrothermal film; an electric lead is connected to the silver electrode to manufacture an electric heating core; the electric insulation ceramic glaze surface makes the binding force between calcium and magnesium ions weak, so that hard scale is not easy to form;
The electric heating film comprises at least one heating equivalent heating resistor, and is compounded on the surface of the framework, the electric heating film is divided and communicated by removing the film and keeping white, and the electric heating power of the electric heater is adjusted by the single connection, the series connection and the parallel connection of the heating bodies of the electric heating film resistor;
The silver electrode and the electric lead are led out by combining the high-temperature-resistant sealing rubber sleeve through the high-temperature-resistant electric insulation plug; the electric lead of the electric heater framework is sealed by a sealing rubber sleeve, the electric lead is sealed and mounted and fixed on a mounting base provided with a connecting device, the mounting base is provided with a through hole for leading out an electric lead to pass through, and the through hole is filled with high-temperature resistant and electrically insulating sealing rubber for fixing the lead-out lead, so that the lead-out lead is difficult to pull in the use process, and a wiring terminal convenient for electric connection is welded on the lead-out lead;
at least two metal electrodes are respectively led out of at least two wires on the electric heater framework, wherein the long wires are formed by electrically insulating and coating conductive silver paste on the electric heater framework and an electric heating film, forming an electric wire after high-temperature sintering, then coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on the electric heater framework, baking or hot melting, and baking the electric heater framework to form an electric insulating layer by an oven, wherein the electric insulating layer comprises a ceramic glaze, a glass surface and a Teflon surface, so that electric leakage of the long wires on the electric heater framework is prevented.
4. A method for manufacturing an electric heater core with a heat release surface being an electrically insulating material surface scale inhibition according to claim 3, wherein: the electric heater framework comprises strip-shaped, angle-shaped, arc-shaped, twist-shaped, tubular and corrugated electric heater frameworks; the method for forming the electric heater skeleton carbon material electric heating film comprises dipping and spraying; cleaning the surfaces of the electric heater frameworks, directly soaking or spraying a coating comprising sugar water solution, protein solution or glue on two opposite large surfaces of the electric heater frameworks, drying, and then placing into a furnace for dry distillation and baking at high temperature to obtain a carbon material electrothermal film; or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with a coating containing sugar water solution, protein solution or glue, then the electric heater framework surface is dried, the insulating support is taken down, and the electric heater framework surface is put into a furnace to be dry distilled and baked at high temperature to prepare the carbon material electric heating film; or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with a coating containing sugar water solution, protein solution or glue, then the electric heater framework surface is dried, the insulating support is taken down, and the electric heater framework surface is put into a furnace to be dry distilled and baked at high temperature to prepare the carbon material electric heating film; or coating the powdery mildew paste on the surface of the electric heater framework by scribing, so that the plated film has a reasonable pattern to obtain proper surface load and optimal heating distribution; then dipping or spraying a coating material comprising sugar water solution, protein solution or glue, drying, and then putting into a furnace for dry distillation and baking at high temperature to obtain the carbon material electrothermal film; and (3) taking the carbon material electrothermal film out of the furnace for cooling, coating conductive silver paste at a proper position, sending the conductive silver paste into an oven, baking a silver electrode, coating ceramic glass glaze or a glass sleeve on the surface of the electrothermal film and part of the silver electrode, and baking or hot-melting the ceramic glass glaze, the glass surface and the Teflon surface by the oven.
5. The utility model provides an electric heater is scale inhibition of electrical insulation material face to heat face, includes electric heater skeleton, electrothermal film, electrode, connecting wire, characterized by: the electric heater heating surface is scale-inhibited through an electric insulation ceramic glaze, the electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, and the electric heater frameworks comprise quartz glass frameworks, microcrystalline glass frameworks and ceramic frameworks; the surface of the framework is a smooth surface or a surface subjected to frosting or halogenation treatment; the method for forming the electric heater skeleton carbon material electric heating film comprises dipping and spraying; coating an electrothermal film coating prepared by mixing water glass and a carbon material or an electrothermal film coating prepared by mixing water glass and a metal powder material on the surface of an electric heating framework, drying, and sintering by an oven to prepare a composite carbon material electrothermal film or a composite metal material electrothermal film; then, coating conductive silver paste on the surface of a proper position of an electric heater framework of the composite carbon material electric heating film or the composite metal material electric heating film, baking to obtain a silver electrode through an oven, then coating ceramic glass glaze or a sleeved glass sleeve or Teflon material on the surface of the composite carbon material electric heating film or the surface of the composite metal material electric heating film and part of the silver electrode, baking or hot melting to obtain an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface through the oven, and manufacturing an electric heater comprising at least two radiating surfaces and at least one composite carbon material electric heating film or composite metal material electric heating loop;
Or coating an electrothermal film coating prepared by mixing water glass and a carbon material or an electrothermal film coating prepared by mixing water glass and a metal powder material on the surface of an electric heating skeleton, drying, coating conductive silver paste on the surface of a proper position of the electric heating skeleton of the composite carbon material electrothermal film coating or the composite metal material electrothermal film coating, drying, baking the composite carbon material electrothermal film coating or the composite metal material electrothermal film and a silver electrode by an oven, coating ceramic glass glaze on the surface of the composite carbon material electrothermal film or the composite metal material electrothermal film and a part of the silver electrode or sleeving a glass sleeve or a Teflon material, baking the ceramic glaze, the glass surface and the Teflon surface by the oven, and preparing an electric heater with at least two radiating surfaces and containing at least one composite carbon material electrothermal film or composite metal material electrothermal film electrothermal loop;
Or coating an electrothermal film coating prepared by mixing water glass and a carbon material or an electrothermal film coating prepared by mixing water glass and a metal powder material on the surface of an electric heating skeleton, drying, coating conductive silver paste on the surface of a proper position of the electric heating skeleton of the composite carbon material electrothermal film coating or the composite metal material electrothermal film coating, drying, coating ceramic glass glaze on the surface of the composite carbon material electrothermal film coating or the composite metal material electrothermal film coating and part of the conductive silver paste, sleeving a glass sleeve or a Teflon material, drying or hot melting, and baking to obtain an electric heater comprising a ceramic glaze surface, a glass surface and a Teflon surface by an oven, wherein at least two radiating surfaces are arranged, and the electric heater comprises at least one composite carbon material electrothermal film or a composite metal material electrothermal film electrothermal circuit; an electric lead is connected to the silver electrode to manufacture an electric heating core; the electric insulation ceramic glaze surface makes the binding force between calcium and magnesium ions weak, so that hard scale is not easy to form;
The electric heating film comprises at least one heating equivalent heating resistor, and is compounded on the surface of the framework, the electric heating film is divided and communicated by removing the film and keeping white, and the electric heating power of the electric heater is adjusted by the single connection, the series connection and the parallel connection of the heating bodies of the electric heating film resistor;
The silver electrode and the electric lead are led out by combining the high-temperature-resistant sealing rubber sleeve through the high-temperature-resistant electric insulation plug; the electric lead of the electric heater framework is sealed by a sealing rubber sleeve, the electric lead is sealed and mounted and fixed on a mounting base provided with a connecting device, the mounting base is provided with a through hole for leading out an electric lead to pass through, and the through hole is filled with high-temperature resistant and electrically insulating sealing rubber for fixing the lead-out lead, so that the lead-out lead is difficult to pull in the use process, and a wiring terminal convenient for electric connection is welded on the lead-out lead;
at least two metal electrodes are respectively led out of at least two wires on the electric heater framework, wherein the long wires are formed by electrically insulating and coating conductive silver paste on the electric heater framework and an electric heating film, forming an electric wire after high-temperature sintering, then coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on the electric heater framework, baking or hot melting, and baking the electric heater framework to form an electric insulating layer by an oven, wherein the electric insulating layer comprises a ceramic glaze, a glass surface and a Teflon surface, so that electric leakage of the long wires on the electric heater framework is prevented.
6. The method for manufacturing the electric heating core of the electric scale-inhibiting heater with the heat release surface being made of the electric insulation material according to claim 5, which is characterized in that: the electric heater framework comprises strip-shaped, angle-shaped, arc-shaped, twist-shaped, tubular and corrugated electric heater frameworks; the method for forming the electric heater skeleton carbon material electric heating film comprises dipping and spraying; cleaning the surface of an electric heater framework, directly dipping or spraying an electric heating film coating prepared by mixing water glass and a carbon material on two opposite large surfaces of the electric heater framework, or an electric heating film coating prepared by mixing water glass and a metal powder material, then drying, and putting into a furnace to bake and sinter at a high temperature to prepare the carbon material electric heating film; or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with an electric heating film coating prepared by mixing water glass and carbon materials, or an electric heating film coating prepared by mixing water glass and metal powder materials, then the electric heating film coating is dried, the insulating support is taken down, and the electric heating film is put into a furnace to be baked and sintered at high temperature to prepare the carbon material electric heating film; or the insulating support is sleeved on the surface of the electric heater framework, then the electric heater framework surface is immersed or sprayed with an electric heating film coating prepared by mixing water glass and carbon materials, or an electric heating film coating prepared by mixing water glass and metal powder materials, then the electric heating film coating is dried, the insulating support is taken down, and the electric heating film is put into a furnace to be baked and sintered at high temperature to prepare the carbon material electric heating film; or coating the powdery mildew paste on the surface of the electric heater framework by scribing, so that the plated film has a reasonable pattern to obtain proper surface load and optimal heating distribution; then dipping or spraying an electrothermal film coating prepared by mixing water glass and a carbon material, or an electrothermal film coating prepared by mixing water glass and a metal powder material, drying, and then putting into a furnace to bake and sinter at high temperature to prepare the carbon material electrothermal film; and (3) taking the carbon material electrothermal film out of the furnace for cooling, coating conductive silver paste at a proper position, sending the conductive silver paste into an oven, baking a silver electrode, coating ceramic glass glaze on the surface of the electrothermal film and part of the silver electrode, or sleeving a glass sleeve or Teflon material, and baking or hot-melting the ceramic glass glaze, the glass surface and the Teflon surface through the oven.
7. The utility model provides an electric heater is scale inhibition of electrical insulation material face to heating surface, includes electric heater skeleton, heating wire, electrode, connecting wire, characterized by: the electric heater heating surface is scale-inhibited through an electric insulation ceramic glaze, the electric heater framework comprises strip-shaped, angular, arc-shaped, twisted, tubular and corrugated electric heater frameworks, and the electric heater frameworks comprise quartz glass frameworks, microcrystalline glass frameworks and ceramic frameworks; the electric heater framework is wound with an electric heating wire, and comprises a metal electric heating wire and a carbon material electric heating wire; the surface of the framework is a smooth surface or a surface subjected to frosting or halogenation treatment; winding electric heating wires on the surface of the framework to form an electric heating wire heater, or forming the electric heater as a corrugated pipe made of an electric heating metal plate, and forming at least one group of electric heating loops through slotting; then, coating conductive silver paste on the end heads of the heating wires and the winding end heads of the electric heater framework, and baking a silver electrode by an oven; coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on a part of silver electrodes on the electric heater framework serving as a radiating surface, baking or hot melting the ceramic glass glaze, the glass surface and the Teflon surface by an oven to prepare an electric heater framework serving as the radiating surface, and connecting an electric lead on the silver electrodes to prepare an electric heating core; the electric insulation ceramic glaze surface makes the binding force between calcium and magnesium ions weak, so that hard scale is not easy to form;
The silver electrode and the electric lead are led out by combining the high-temperature-resistant sealing rubber sleeve through the high-temperature-resistant electric insulation plug; the electric lead of the electric heater framework is sealed and fixed on the installation base provided with the connecting device by the sealing rubber sleeve, the installation base is provided with a through hole for leading out the electric lead to pass through, and the high-temperature resistant and electric insulation sealing rubber is filled in the through hole for fixing the lead out the electric lead, so that the electric lead is difficult to tear in the use process, and the lead out electric lead is welded with a wiring terminal convenient for electric connection.
8. The method for manufacturing the electric heating core of the electric scale-inhibiting heater with the heat release surface being made of the electric insulation material according to claim 7, which is characterized in that: the electric heater framework comprises strip-shaped, angle-shaped, arc-shaped, twist-shaped, tubular and corrugated electric heater frameworks; the electric heater framework is wound with an electric heating wire, and comprises a metal electric heating wire and a carbon material electric heating wire; winding a metal heating wire or a carbon material heating wire on an electric heater framework to prepare an electric heater of the heating wire, coating conductive silver paste on the end head of the heating wire and a winding end socket of the electric heater framework, and baking a silver electrode by an oven; coating ceramic glass glaze or sleeving a glass sleeve or Teflon material on the radiating surface of the electric heater framework and part of silver electrodes, baking or hot melting, and then baking the ceramic glass glaze, the glass surface and the Teflon surface by an oven to prepare an electric heater framework serving as the radiating surface and an electric heater comprising at least one electric heating loop, wherein an electric lead is connected to the silver electrodes to prepare an electric heating core;
Or the electric heater is a corrugated pipe made of an electric heating metal plate and is divided into at least one group of electric heating loops through grooves, and the electric heating metal plate surface is compounded with an electric heater heat release surface which is an electric insulation material surface and comprises an electric insulation ceramic glaze surface, a glass lining surface, an enamel surface and a Teflon electric insulation film layer for scale inhibition; coating conductive silver paste on the end of the electric heating metal plate, and baking a silver electrode through an oven; and (3) coating the electric heating metal plate with a Teflon electric insulation film layer, baking the electric heating metal plate, and baking the electric heating metal plate by an oven to obtain the Teflon electric insulation film layer compounded by the electric heating metal plate tube, wherein the Teflon electric insulation film layer is a radiating surface and comprises at least one electric heater of an electric heating loop, and an electric lead is connected to a silver electrode to obtain an electric heating core, wherein the electric heating metal plate tube is a longitudinal corrugated tube.
9. A scale inhibiting electric heater having a heat release surface of electrically insulating material according to claim 1, 3 or 5, wherein: a silver electrode is compounded on the electrothermal film at the closed end of the framework of the electric heater; an electric insulating annular clamping ring is arranged on the inner wall of the framework of the electric heater and connected with the silver electrode; the opposite surfaces of the electric insulating annular clamping ring are provided with metal connecting sheets coated with soldering tin for connecting the electric wires with the electric heating film, and metal electrodes are arranged between the electric heating film and the electric insulating annular clamping ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710659614 | 2017-08-04 | ||
| CN2017106596144 | 2017-08-04 |
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| CN201821219671.7U Expired - Fee Related CN209314119U (en) | 2017-08-04 | 2018-07-31 | A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater |
| CN201810855760.9A Active CN109392202B (en) | 2017-08-04 | 2018-07-31 | Electric heater with scale inhibition surface made of electric insulating material |
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| CN201821219671.7U Expired - Fee Related CN209314119U (en) | 2017-08-04 | 2018-07-31 | A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater |
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| CN209314119U (en) * | 2017-08-04 | 2019-08-27 | 淄博环能海臣环保技术服务有限公司 | A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063550A (en) * | 2006-04-30 | 2007-10-31 | 徐宝安 | Instantaneously heated type convective circulation electric heater mounted electrical leakage voltage attenuation |
| CN102769944A (en) * | 2012-07-10 | 2012-11-07 | 王俊利 | Glassed steel tin oxide thin-film heating tube |
| CN205408192U (en) * | 2016-03-07 | 2016-07-27 | 江福兴 | Nanometer electrothermal tube |
| CN209314119U (en) * | 2017-08-04 | 2019-08-27 | 淄博环能海臣环保技术服务有限公司 | A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater |
-
2018
- 2018-07-31 CN CN201821219671.7U patent/CN209314119U/en not_active Expired - Fee Related
- 2018-07-31 CN CN201810855760.9A patent/CN109392202B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063550A (en) * | 2006-04-30 | 2007-10-31 | 徐宝安 | Instantaneously heated type convective circulation electric heater mounted electrical leakage voltage attenuation |
| CN102769944A (en) * | 2012-07-10 | 2012-11-07 | 王俊利 | Glassed steel tin oxide thin-film heating tube |
| CN205408192U (en) * | 2016-03-07 | 2016-07-27 | 江福兴 | Nanometer electrothermal tube |
| CN209314119U (en) * | 2017-08-04 | 2019-08-27 | 淄博环能海臣环保技术服务有限公司 | A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater |
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| CN109392202A (en) | 2019-02-26 |
| CN209314119U (en) | 2019-08-27 |
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