CN209314119U - A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater - Google Patents

A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater Download PDF

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Publication number
CN209314119U
CN209314119U CN201821219671.7U CN201821219671U CN209314119U CN 209314119 U CN209314119 U CN 209314119U CN 201821219671 U CN201821219671 U CN 201821219671U CN 209314119 U CN209314119 U CN 209314119U
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China
Prior art keywords
electric
skeleton
electric heater
film
glass
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Expired - Fee Related
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CN201821219671.7U
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Chinese (zh)
Inventor
徐宝安
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Zibo Huanneng Haichen Environmental Protection Tech Services Co Ltd
Zibo Huanneng Haichen Environmental Protection Technology Services Co Ltd
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Zibo Huanneng Haichen Environmental Protection Tech Services Co Ltd
Zibo Huanneng Haichen Environmental Protection Technology Services Co Ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/40Heating elements having the shape of rods or tubes
    • H05B3/42Heating elements having the shape of rods or tubes non-flexible
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/02Details
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/10Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017Manufacturing methods or apparatus for heaters
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021Heaters specially adapted for heating liquids

Abstract

A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, the coating of Electric radiant Heating Film is made in coating on the surface of skeleton, after Electric radiant Heating Film is made in oversintering, conductive silver paste is coated on Electric radiant Heating Film appropriate location surface, silver electrode is baked by oven, the coated ceramic glass glaze in electric heating film surface and part silver electrode later, or suit glass bushing, or teflon material, after drying or hot melt, it is baked by oven including Ceramic glaze, glass surface, Teflon surface, it is made at least provided with two radiating surfaces, electric heater comprising at least one electrothermal film electric hot loop;Electric lead is connected in silver electrode, and electrical heating core is made.Electric lead is drawn electrode closing electric lead, sealing is fixed in the installation pedestal equipped with attachment device by set seal rubber sleeve.Insulating ceramics glaze makes calcium ions and magnesium ions power in combination weak, is not easy to form hard scale.Since its is simple and reliable for structure, power regulation is convenient, highly-safe, low cost, handling ease, excellent performance.

Description

A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater
Technical field
The utility model relates to field of electric heating, in particular to a kind of heat delivery surface is the scale inhibition electric heating of electrically insulating material face Device.
Background technique
Existing electric heater generally uses metal tube internal oxidition magnesium powder to fill out the form of packet heating wire, because of metal tube conduction, gold Belong to pipe surface meeting fouling, cause heat-transfer effect poor, spend height so as to cause metal electric heating tube temperature, easily metal tube is caused to corrode, Reduced service life.And quartz glass electric heater is although less scaling, but due to the heat dissipation area and power density of single tube It needs to match, therefore the volume that high power tube generally requires to do is larger, is just able to satisfy the demand to power, and volume is excessive then right Intensity, installation space, safety, cost etc. cause inconvenience, and power regulation is difficult.
Utility model content
It is electrically insulating material face scale inhibition electric heater that the utility model, which provides a kind of heat delivery surface, realizes that intensity is high, radiating surface Long-pending big, small in size, safe and reliable, low cost, non-scaling etc. require, and can realize that power regulation is convenient.
To realize the above-mentioned technical purpose, the utility model adopts the following technical solution: a kind of heat delivery surface is electrically insulating material Face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, connecting wire.Its electric heater heat delivery surface is electrical isolation Material face, including electric insulation ceramics glaze, enamel face, enamel face, Teflon electric insulation film layer, so that calcium ions and magnesium ions are tied therewith It is weak with joint efforts, it is not easy to form hard scale.Electric heater skeleton be include strip, horn shape, arc-shaped, twisted shape, tubulose, bellows The electric heater skeleton of shape, electric heater skeleton include quartz glass skeleton, devitrified glass skeleton, ceramic skeleton.Its table of skeleton Face is shiny surface, or is the surface by frosted or halogenation treatment, passes through chemical vapor deposition, spray pyrolysis, ion sputtering, steaming The thin-film techniques such as hair, in the doped semiconductor nanocrystal conductive film material that high-temperature insulation skeleton matrix surface generates.Such as adding Stannic oxide electrothermal semiconductor membrane coat is made in spray pyrolysis oxidating chemicals on the surface of hot skeleton, and suitable in its Electric radiant Heating Film When surface of position brushing conductive silver paste, silver electrode is baked by oven, in stannic oxide electrothermal semiconductor film surface and part silver Coated ceramic glass glaze on electrode after drying, bakes Ceramic glaze by oven, is made at least provided with two radiating surfaces, packet Electric heater containing at least one stannic oxide semiconductor thermoelectric film electric heating circuit.Or dioxy is made in coating on the surface of skeleton The coating for changing tin semiconductor thermoelectric film, after stannic oxide semiconductor thermoelectric film is made in oversintering, in stannic oxide semi-conductor electricity Conductive silver paste is coated on hotting mask appropriate location surface, bakes silver electrode by oven, later in stannic oxide semiconductor thermoelectric film table On face and part silver electrode, coated ceramic glass glaze, or suit glass bushing or teflon material are led to after drying or hot melt It crosses oven to bake including Ceramic glaze, glass surface, Teflon surface, be made at least provided with two radiating surfaces, include at least one The electric heater in a stannic oxide semiconductor thermoelectric film electric heating circuit.
Or the coating of stannic oxide semiconductor thermoelectric film is made in coating on the surface of electric heater skeleton, after drying, Conductive silver paste is coated on the appropriate location surface that stannic oxide electrothermal semiconductor membrane coat is made in coating, after drying, passes through oven Stannic oxide semiconductor thermoelectric film and silver electrode are baked, later in stannic oxide electrothermal semiconductor film surface and part silver electrode On, coated ceramic glass glaze, or suit glass bushing or teflon material, after drying or hot melt, by oven bake including Ceramic glaze, glass surface, Teflon surface are made at least provided with two radiating surfaces, partly lead comprising at least one stannic oxide The electric heater of body electrothermal film electric hot loop.
Or the coating of stannic oxide semiconductor thermoelectric film is made in coating on the surface of electric heater skeleton, after drying, Conductive silver paste is coated on the appropriate location surface that stannic oxide electrothermal semiconductor membrane coat is made in coating, after drying, in titanium dioxide Coated ceramic glass glaze in tin electrothermal semiconductor film surface and partially electronically conductive silver paste film, or suit glass bushing or Teflon After material, drying or hot melt, is baked by oven including Ceramic glaze, glass surface, Teflon surface, be made at least provided with two A radiating surface, the electric heater comprising at least one stannic oxide semiconductor thermoelectric film electric heating circuit.Electricity is connected in silver electrode Electrical heating core is made in conducting wire.Electric insulation ceramics glaze makes calcium ions and magnesium ions power in combination weak, is not easy to form hard scale.
Silver electrode and electric lead are sealed electrode in conjunction with refractory seals gum cover by set high temperature resistant, electrical isolation plug Close electric lead extraction.By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing, which is fixed on, is equipped with connection In the installation pedestal of device, installation pedestal is equipped with the via hole passed through for drawing electric lead, and it is close that high temperature resistant, electrical isolation is perfused in this via hole Sealing makes it be difficult to tear in use, on the electric lead of extraction, is welded with and facilitates electrical connection for fixing extraction wire Connecting terminal.
A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, even Connect conducting wire.Its electric heater heat delivery surface by electric insulation ceramics glaze scale inhibition, electric heater skeleton be include strip, horn shape, circle Arcuation, twisted shape, tubulose, corrugated tube shape electric heater skeleton, electric heater skeleton includes quartz glass skeleton, devitrified glass Skeleton, ceramic skeleton.Its surface of skeleton is shiny surface, or is the surface by frosted or halogenation treatment.On the surface of skeleton The coating of carbon material Electric radiant Heating Film is made in coating, appropriate in carbon material Electric radiant Heating Film after carbon material Electric radiant Heating Film is made in destructive distillation sintering Surface of position coats conductive silver paste, silver electrode is baked by oven, later in carbon material electric heating film surface and part silver electrode After coated ceramic glass glaze, or suit glass bushing or teflon material, drying or hot melt, baked by oven including pottery Ceramic glaze surface, glass surface, Teflon surface are made at least provided with two radiating surfaces, and the electricity comprising at least one electric heating circuit adds Hot device.
Or the coating of carbon material Electric radiant Heating Film is made in coating on the surface of electric heater skeleton, after drying, is made in coating Conductive silver paste is coated on the appropriate location surface of the coating of carbon material Electric radiant Heating Film, after drying, bakes carbon material electric heating by oven Film and silver electrode, later the coated ceramic glass glaze in carbon material electric heating film surface and part silver electrode, or suit glass sock After pipe or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass surface, Teflon surface, system At at least provided with two radiating surfaces, the electric heater comprising at least one carbon material electrothermal film electric hot loop.
Or the coating of carbon material Electric radiant Heating Film is made in coating on the surface of electric heater skeleton, after drying, is made in coating Conductive silver paste is coated on the appropriate location surface of carbon material electric heating membrane coat, after drying, in carbon material electric heating film surface and part After coated ceramic glass glaze on conductive silver serous coat, or suit glass bushing or teflon material, drying or hot melt, by roasting Furnace is baked including Ceramic glaze, glass surface, Teflon surface, is made at least provided with two radiating surfaces, includes at least one carbon The electric heater in material electric heating film electric heating circuit.Electric lead is connected in silver electrode, and electrical heating core is made.Electric insulation ceramics glaze Face makes calcium ions and magnesium ions power in combination weak, is not easy to form hard scale.
Silver electrode and electric lead are sealed electrode in conjunction with refractory seals gum cover by set high temperature resistant, electrical isolation plug Close electric lead extraction.By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing, which is fixed on, is equipped with connection In the installation pedestal of device, installation pedestal is equipped with the via hole passed through for drawing electric lead, and it is close that high temperature resistant, electrical isolation is perfused in this via hole Sealing makes it be difficult to tear in use, on the electric lead of extraction, is welded with and facilitates electrical connection for fixing extraction wire Connecting terminal.
A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, even Connect conducting wire.Its electric heater heat delivery surface by electric insulation ceramics glaze scale inhibition, electric heater skeleton be include strip, horn shape, circle Arcuation, twisted shape, tubulose, corrugated tube shape electric heater skeleton, electric heater skeleton includes quartz glass skeleton, devitrified glass Skeleton, ceramic skeleton.Its surface of skeleton is shiny surface, or is the surface by frosted or halogenation treatment.In electric heating skeleton On surface, the electric heating coating being mixed including waterglass and carbon material or waterglass and metal powder material is made in coating It after the electric heating coating being mixed, is dried, complex carbon material Electric radiant Heating Film or compound is made by oven sintering later Metal material Electric radiant Heating Film.Later, appropriate in the electric heater skeleton of complex carbon material Electric radiant Heating Film or composite material Electric radiant Heating Film On surface of position, conductive silver paste is coated, after drying, silver electrode is baked by oven, later in complex carbon material Electric radiant Heating Film or again Coated ceramic glass glaze in alloy category material electric heating film surface and part silver electrode, or suit glass bushing or Teflon material After material, drying or hot melt, is baked by oven including Ceramic glaze, glass surface, Teflon surface, be made at least provided with two Radiating surface, the electric heater comprising at least one complex carbon material Electric radiant Heating Film or composite material electrothermal film electric hot loop.
Or on the surface of electric heating skeleton, coating is made the Electric radiant Heating Film being mixed including waterglass and carbon material and applies It after the electric heating coating that material or waterglass and metal powder material are mixed, is dried, later in complex carbon material electricity On the appropriate location surface of hotting mask coating or composite material electric heating coating electric heater skeleton, conductive silver paste is coated, into After row drying, complex carbon material electric heating coating or composite material Electric radiant Heating Film and silver electrode are baked by oven, multiple Close coated ceramic glass glaze in carbon material Electric radiant Heating Film or composite material electric heating film surface and part silver electrode, or suit After glass bushing or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass surface, Teflon table Face is made at least provided with two radiating surfaces, includes at least one complex carbon material Electric radiant Heating Film or composite material electrothermal film electric The electric heater of hot loop.
Or on the surface of electric heating skeleton, coating is made the Electric radiant Heating Film being mixed including waterglass and carbon material and applies It after the electric heating coating that material or waterglass and metal powder material are mixed, is dried, later in complex carbon material electricity On the appropriate location surface of hotting mask coating or composite material electric heating coating electric heater skeleton, conductive silver paste is coated, into After row drying, in complex carbon material electric heating membrane coat or composite material Electric radiant Heating Film coating surface and partially electronically conductive silver paste Upper coated ceramic glass glaze, or suit glass bushing or teflon material, after drying or hot melt, by oven bake including Ceramic glaze, glass surface, Teflon surface are made at least provided with two radiating surfaces, include at least one complex carbon material electricity Hotting mask or the electric heater of composite material electrothermal film electric hot loop.Electric lead is connected in silver electrode, and electric heating is made Core.Electric insulation ceramics glaze makes calcium ions and magnesium ions power in combination weak, is not easy to form hard scale.
Silver electrode and electric lead are sealed electrode in conjunction with refractory seals gum cover by set high temperature resistant, electrical isolation plug Close electric lead extraction.By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing, which is fixed on, is equipped with connection In the installation pedestal of device, installation pedestal is equipped with the via hole passed through for drawing electric lead, and it is close that high temperature resistant, electrical isolation is perfused in this via hole Sealing makes it be difficult to tear in use, on the electric lead of extraction, is welded with and facilitates electrical connection for fixing extraction wire Connecting terminal.
A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, even Connect conducting wire.Its electric heater heat delivery surface by electric insulation ceramics glaze scale inhibition, electric heater skeleton be include strip, horn shape, circle Arcuation, twisted shape, tubulose, corrugated tube shape electric heater skeleton, electric heater skeleton includes quartz glass skeleton, devitrified glass Skeleton, ceramic skeleton.Its surface of skeleton is shiny surface, or is the surface by frosted or halogenation treatment.On the surface of skeleton Heating wire is wound, heating wire electric heater is made, later, at the coiling end socket of heating wire end and electric heater skeleton, is applied Conductive silver paste is covered, silver electrode is baked by oven.It is coated ceramic in heat-delivery surface and part silver electrode in electric heater skeleton After glass glaze, or suit glass bushing or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass Glass surface, Teflon surface, be made electric heater skeleton be radiating surface, the electric heater comprising at least one electric heating circuit, Electric lead is connected in silver electrode, and electrical heating core is made.Electric insulation ceramics glaze makes calcium ions and magnesium ions power in combination weak, is not easy Form hard scale.
Silver electrode and electric lead are sealed electrode in conjunction with refractory seals gum cover by set high temperature resistant, electrical isolation plug Close electric lead extraction.By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing, which is fixed on, is equipped with connection In the installation pedestal of device, installation pedestal is equipped with the via hole passed through for drawing electric lead, and it is close that high temperature resistant, electrical isolation is perfused in this via hole Sealing makes it be difficult to tear in use, on the electric lead of extraction, is welded with and facilitates electrical connection for fixing extraction wire Connecting terminal.
A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, and Electric radiant Heating Film includes at least one equivalent fever of generating heat Resistance, the Electric radiant Heating Film being compounded on skeleton surface, is left white by membrane removal, connection is split to Electric radiant Heating Film, by Electric radiant Heating Film Simply connected, the series, parallel of resistance heater realize the adjusting to electric heater capacity.
A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, the Electric radiant Heating Film of the closed end of electric heater skeleton On, or it is compounded with silver electrode.In electric heater inboard wall of skeleton, it is equipped with electrical isolation circumferential clasp and is connect with silver electrode.Electrical insulation ring Shape snap ring apparent surface is equipped with the metal connecting sheet coated with scolding tin, for the connection between electric lead and Electric radiant Heating Film, in electric heating It is metal electrode between film and the circumferential clasp that is electrically insulated.On electric heater skeleton, at least two metal electrodes are led to respectively Few two conducting wires, wherein long conducting wire is on electric heater skeleton, and be electrically insulated coating conductive silver paste with electric heating film, high temperature Electric lead is formed after sintering, later the coated ceramic glass glaze on electric heater skeleton, or suit glass bushing or Teflon After material, drying or hot melt, is baked by oven including Ceramic glaze, glass surface, Teflon surface, forms electric insulation layer, Prevent conducting wire electric leakage long on electric heater skeleton.
The beneficial effects of the utility model are:
1, because using a kind of heat delivery surface for electrically insulating material face scale inhibition electric heater mode, thus in identical heating surface (area) (HS and In the case where power, the volume that electric heater can be made is smaller.
2, a kind of heat delivery surface be electrically insulating material face scale inhibition electric heater device using nonmetallic quartz glass profile, Devitrified glass profile, ceramic profile, they are not likely to produce scale during the electric heating of water, make a kind of heat delivery surface exhausted for electricity Edge material face scale inhibition electric heater device is always maintained at high clean surface, thus opposing metallic electrothermal tube, longer life expectancy.
3, using profile body structure, heating surface is uniform.
4, using tube body for quartz glass profile, devitrified glass profile, ceramic profile themselves is excellent insulator, Using safer, in addition, reducing the use of metal ingredient, therefore more environmentally friendly since tube body uses silica glass material.
5, since its is simple and reliable for structure, power regulation is convenient, highly-safe, low cost, handling ease, excellent performance, generation Following developing direction of table water heater application.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is that the heater of the utility model is the side schematic cross-sectional view of strip type electric heater first embodiment;
Fig. 2 is that the heater of the utility model is the positive schematic cross-sectional view of strip type electric heater first embodiment;
Fig. 3 is that the heater of the utility model is the schematic cross-sectional view of bowing of strip type electric heater first embodiment;
Fig. 4 is that the heater of the utility model is the equivalent circuit diagram of strip type electric heater first embodiment;
Fig. 5 is that the heater of the utility model is the side schematic cross-sectional view of strip type electric heater second embodiment;
Fig. 6 is that the heater of the utility model is the positive schematic cross-sectional view of strip type electric heater second embodiment;
Fig. 7 is that the heater of the utility model is the schematic cross-sectional view of bowing of strip type electric heater second embodiment;
Fig. 8 is that the heater of the utility model is the equivalent circuit diagram of strip type electric heater second embodiment;
Fig. 9 is that the heater of the utility model is the side schematic cross-sectional view of strip type electric heater 3rd embodiment;
Figure 10 is that the heater of the utility model is the positive schematic cross-sectional view of strip type electric heater 3rd embodiment;
The heater of Figure 11 the utility model is the schematic cross-sectional view of bowing of strip type electric heater 3rd embodiment;
Figure 12 is that the heater of the utility model is the equivalent circuit diagram of strip type electric heater 3rd embodiment;
Figure 13 is that the heater of the utility model is the positive schematic cross-sectional view of tube electric heater fourth embodiment;
Figure 14 is that the heater of the utility model is the schematic cross-sectional view of bowing of tube electric heater fourth embodiment;
Figure 15 is that the heater of the utility model is the positive schematic cross-sectional view of the 5th embodiment of tube electric heater;
Figure 16 is that the heater of the utility model is the schematic cross-sectional view of bowing of the 5th embodiment of tube electric heater;
Figure 17 is that the heater of the utility model is the positive schematic cross-sectional view of tube electric heater sixth embodiment;
Figure 18 is that the heater of the utility model is the schematic cross-sectional view of bowing of tube electric heater sixth embodiment;
Figure 19 is that the heater of the utility model is the positive schematic cross-sectional view of the 7th embodiment of tube electric heater;
Figure 20 is that the heater of the utility model is the schematic cross-sectional view of bowing of the 7th embodiment of tube electric heater;
Figure 21 is that the heater of the utility model is the positive schematic cross-sectional view of the 8th embodiment of tube electric heater;
Figure 22 is that the heater of the utility model is the schematic cross-sectional view of bowing of the 8th embodiment of tube electric heater;
Figure 23 is that the heater of the utility model is the positive schematic cross-sectional view of the 9th embodiment of tube electric heater;
Figure 24 is that the heater of the utility model is the schematic cross-sectional view of bowing of the 9th embodiment of tube electric heater;
Figure 25 is that the heater of the utility model is the positive schematic cross-sectional view of the tenth embodiment of tube electric heater;
Figure 26 is that the heater of the utility model is the schematic cross-sectional view of bowing of the tenth embodiment of tube electric heater;
Figure 27 is that the heater of the utility model is the positive schematic cross-sectional view of the 11st embodiment of tube electric heater;
Figure 28 is that the heater of the utility model is the schematic cross-sectional view of bowing of the 11st embodiment of tube electric heater.
In figure: electric lead 1, silver electrode 2, Ceramic glaze 3, Electric radiant Heating Film 4, electric heater skeleton 5, electrical isolation isolation channel 6, peace Fill pedestal 7, heatproof seal rubber sleeve 8, seal plug 9, protection end cap 10
Specific embodiment
First embodiment as shown in Figure 1, Figure 2, Figure 3, Figure 4: heat delivery surface is electric insulation ceramics glaze scale inhibition electric heater, Electric heater skeleton 5 is strip ceramic skeleton.Its surface of electric heater skeleton 5 is shiny surface, or at by frosted or halogenation The surface of reason.On the surface of electric heater skeleton 5, the coating of stannic oxide semiconductor thermoelectric film 4 is made in coating, through oversintering After stannic oxide semiconductor thermoelectric film 4 is made, conductive silver paste is coated on 4 appropriate location surface of stannic oxide semiconductor thermoelectric film, Silver electrode 2 is baked by oven, later the coated ceramic glass on 4 surface of stannic oxide semiconductor thermoelectric film and part silver electrode After glaze, or suit glass bushing or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass table Face, Teflon surface, 3, it is made at least provided with two radiating surfaces, includes at least one 4 electric heating of stannic oxide semiconductor thermoelectric film The electric heater in circuit.Electric lead 1 is connected in silver electrode 2, that is, electrical heating core is made.Electric insulation ceramics glaze 3 makes calcium and magnesium Ion power in combination is weak, is not easy to form hard scale.Silver electrode 2 and electric lead 1, will by set heatproof seal rubber sleeve 8 Electrode is closed electric lead 1 and is drawn.By the conductance line end of the closed electric heater skeleton 5 of seal rubber sleeve 8, sealing is fixed on In installation pedestal 7 equipped with attachment device, installation pedestal 7 is equipped with the via hole passed through for drawing electric lead 1.Resistance to height is perfused in this via hole Temperature, electrical isolation sealant make it be difficult to tear in use, on the electric lead of extraction, weld for fixing extraction wire There is the connecting terminal for facilitating electrical connection.
Such as Fig. 5, Fig. 6, Fig. 7, the utility model second embodiment shown in Fig. 8: second embodiment electric heater skeleton 5 It is compounded with stannic oxide semiconductor thermoelectric film 4 on surface, is partly led in the compound stannic oxide of the cross cut end (of a beam) of electric heater skeleton 5 In body Electric radiant Heating Film 4, it is equipped with silver electrode 7, silver electrode 7 powers on insulation from a side surface of electric heater skeleton 5 and draws silver electrode 7, The compound electric heater for constituting at least two heat-generating units.It is other to be equal to first embodiment.
The utility model 3rd embodiment shown in Fig. 9, Figure 10, Figure 11, Figure 12: 3rd embodiment electric heater skeleton 5 Surface on be compounded with stannic oxide semiconductor thermoelectric film 4, on the surface of electric heater skeleton 5, pass through electrical isolation isolation channel 6 Electric radiant Heating Film 4 is divided, from compound silver electrode 7 on 4 surface of bottom Electric radiant Heating Film of electric heater skeleton 5, constitutes at least two fevers The electric heater of unit.It is other to be equal to first embodiment.
The utility model fourth embodiment shown in Figure 13, Figure 14: fourth embodiment electric heater skeleton 5 is profile bone Frame is compounded with stannic oxide semiconductor thermoelectric film 4 on the surface of electric heater sectional materials cage 5, from the bottom of electric heater skeleton 5 Compound silver electrode 7 on 4 surface of portion's Electric radiant Heating Film constitutes the electric heater of two heat-generating units of pipe surfaces externally and internally.It is other to be equal to One embodiment.
The 5th embodiment of the utility model shown in Figure 15, Figure 16: the 5th embodiment electric heater skeleton 5 is profile bone Frame is compounded with stannic oxide semiconductor thermoelectric film 4 on the surface of electric heater sectional materials cage 5, from the top of electric heater skeleton 5 On the surface for holding stannic oxide semiconductor thermoelectric film 4, it is equipped with silver electrode 7, silver electrode 7 is from a side surface of electric heater skeleton 5 Upper electrical isolation draws silver electrode 7, the compound electric heater for constituting at least two independent heat-generating units.It is other to be equal to the first implementation Example.
The utility model sixth embodiment shown in Figure 17, Figure 18: sixth embodiment electric heater skeleton 5 is profile bone Frame is compounded with stannic oxide semiconductor thermoelectric film 4 on the surface of electric heater sectional materials cage 5, in the table of electric heater skeleton 5 On face, Electric radiant Heating Film 4 is divided by electrical isolation isolation channel 6, from composite silver on 4 surface of bottom Electric radiant Heating Film of electric heater skeleton 5 Electrode 7 constitutes the electric heater of at least two independent heat-generating units.It is other to be equal to first embodiment.
The 7th embodiment of the utility model as shown in Figure 19, Figure 20: a kind of heat delivery surface is electric for electrically insulating material face scale inhibition Heater, electric heater skeleton 5 are profile ceramic skeleton, and 5 surfaces externally and internally of profile electric heater skeleton is rough surface.Add in electricity On the inside and outside wall surface of hot device skeleton 5, the coating of stannic oxide semiconductor thermoelectric film 4 is made in coating, and dioxy is made through oversintering After changing tin semiconductor thermoelectric film 4, conductive silver paste is coated on 4 appropriate location surface of stannic oxide semiconductor thermoelectric film, passes through oven Silver electrode 2 is baked, later the coated ceramic glass glaze on 4 surface of stannic oxide semiconductor thermoelectric film and part silver electrode 2, or Glass bushing or teflon material is set with to bake by oven including Ceramic glaze, glass surface, Teflon after drying or hot melt Imperial surface, 3, it is made there are two tubulose radiating surface, the electricity comprising at least one 4 electric heating circuit of stannic oxide semiconductor thermoelectric film adds Hot device.Electric lead 1 is connected in silver electrode 2, that is, electrical heating core is made.Electric insulation ceramics glaze 3 ties calcium ions and magnesium ions therewith It is weak with joint efforts, it is not easy to form hard scale.Electrode is closed electricity by set heatproof seal rubber sleeve 8 by silver electrode 2 and electric lead 1 Conducting wire 1 is drawn.By the conductance line end of the closed electric heater skeleton 5 of seal rubber sleeve 8, sealing, which is fixed on, is equipped with connection dress In the installation pedestal 7 set, installation pedestal 7 is equipped with the via hole passed through for drawing electric lead 1.High temperature resistant, electrical isolation is perfused in this via hole Sealant makes it be difficult to tear in use, on the electric lead of extraction, is welded with and is conveniently electrically connected for fixing extraction wire The connecting terminal connect.Pass through the open end of heatproof seal rubber sleeve 8 and the closed profile electric heater skeleton of seal plug 9, installation Pedestal 2 is equipped with connecting filament head, and electrical isolation sealant draws electric lead 1 for fixed, it is made to be difficult to tear in use. On the electric lead 1 of extraction, it is welded with the connecting terminal for facilitating electrical connection.In installation pedestal 7, it is equipped with protection end cap 10.
The 8th embodiment of the utility model shown in Figure 21, Figure 22: the 8th embodiment electric heater skeleton 5 is profile ceramics Skeleton, profile ceramic skeleton is compounded with stannic oxide semiconductor thermoelectric film 4 on surface, in the cross cut end (of a beam) of electric heater skeleton 5 On compound stannic oxide semiconductor thermoelectric film 4, it is equipped with silver electrode 7, silver electrode 7 is from a side surface of electric heater skeleton 5 Electrical isolation draws silver electrode 7, the compound electric heater for constituting at least two heat-generating units.It is other to be equal to the 7th embodiment.
The 9th embodiment of the utility model shown in Figure 23, Figure 24: the 9th embodiment electric heater skeleton 5 is profile ceramics Skeleton, profile ceramic skeleton is compounded with stannic oxide semiconductor thermoelectric film 4 on surface, on the surface of electric heater skeleton 5, leads to It crosses electrical isolation isolation channel 6 to divide Electric radiant Heating Film 4, from compound silver electrode 7, structure on 4 surface of bottom Electric radiant Heating Film of electric heater skeleton 5 At the electric heater of at least two heat-generating units.It is other to be equal to the 7th embodiment.
The tenth embodiment of the utility model shown in Figure 25, Figure 26: the tenth embodiment electric heater skeleton 5 is slab pottery Porcelain body frame, slab ceramic skeleton is compounded with stannic oxide semiconductor thermoelectric film 4 on surface, on the surface of electric heater skeleton 5 On, on the inside and outside wall surface of electric heater skeleton 5, the coating of stannic oxide semiconductor thermoelectric film 4 is made in coating, through oversintering After stannic oxide semiconductor thermoelectric film 4 is made, conductive silver paste is coated on 4 appropriate location surface of stannic oxide semiconductor thermoelectric film, Silver electrode 2 is baked by oven, later the coated ceramic glass on 4 surface of stannic oxide semiconductor thermoelectric film and part silver electrode 2 After glass glaze, or suit glass bushing or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass Surface, Teflon surface, 3, it is made there are two radiating surface, includes at least one 4 electric heating circuit of stannic oxide semiconductor thermoelectric film Electric heater.Electric lead 1 is connected in silver electrode 2, that is, electrical heating core is made.Electric insulation ceramics glaze 3 makes calcium ions and magnesium ions Power in combination is weak, is not easy to form hard scale.The silver electrode 2 and electric lead 1 of two slab electrical heating cores pass through set Heatproof seal rubber sleeve 8 draws electrode closing electric lead 1.Pass through the electric lead of the closed electric heater skeleton 5 of seal rubber sleeve 8 End, sealing are fixed in the installation pedestal 7 equipped with attachment device, and installation pedestal 7 is equipped with the mistake passed through for drawing electric lead 1 Hole.This via hole perfusion high temperature resistant, electrical isolation sealant make it be difficult to tear in use, draw for fixing extraction wire On electric lead out, it is welded with the connecting terminal for facilitating electrical connection.Pass through heatproof seal rubber sleeve 8 and the closed type of seal plug 9 The open end of material electric heater skeleton, installation pedestal 2 are equipped with connecting filament head, and electrical isolation sealant draws electric lead for fixed 1, make it be difficult to tear in use.On the electric lead 1 of extraction, it is welded with the connecting terminal for facilitating electrical connection.Base is installed On seat 7, it is equipped with protection end cap 10.
The 11st embodiment of the utility model shown in Figure 27, Figure 28: the 11st embodiment electric heater skeleton 5 is Slab ceramic skeleton, installation pedestal 7 are equipped with three electrical heating cores.It is other to be equal to the tenth embodiment.

Claims (6)

1. a kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, connection Conducting wire, it is characterized in that: electric heater heat delivery surface is electrically insulating material face, including electric insulation ceramics glaze, enamel face, enamel Face, Teflon electric insulation film layer are not easy to form hard scale so that calcium ions and magnesium ions power in combination is weak;Electric heater skeleton is Including strip, horn shape, arc-shaped, twisted shape, tubulose, corrugated tube shape electric heater skeleton, electric heater skeleton include quartz Glass skeleton, devitrified glass skeleton, ceramic skeleton;Its surface of skeleton is shiny surface, or is the table by frosted or halogenation treatment Face, by thin-film techniques such as chemical vapor deposition, spray pyrolysis, ion sputtering, evaporations, in high-temperature insulation skeleton matrix surface The doped semiconductor nanocrystal conductive film material of generation;The spray pyrolysis oxidating chemicals such as on the surface of heating skeleton, are made Stannic oxide electrothermal semiconductor membrane coat, and in its Electric radiant Heating Film appropriate location external coating conductive silver paste, silver is baked by oven Electrode, the coated ceramic glass glaze in stannic oxide electrothermal semiconductor film surface and part silver electrode, after drying, passes through oven Ceramic glaze is baked, is made at least provided with two radiating surfaces, includes at least one stannic oxide semiconductor thermoelectric film electric heating circuit Electric heater;Or the coating of stannic oxide semiconductor thermoelectric film is made in coating on the surface of skeleton, is made two through oversintering After tin oxide semiconductor Electric radiant Heating Film, conductive silver paste is coated on stannic oxide semiconductor thermoelectric film appropriate location surface, passes through oven Silver electrode is baked, later in stannic oxide electrothermal semiconductor film surface and part silver electrode, coated ceramic glass glaze, or set After glaze casing or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass surface, Teflon The electric heating at least provided with two radiating surfaces, comprising at least one stannic oxide semiconductor thermoelectric film electric heating circuit is made in surface Device;
Or the coating of stannic oxide semiconductor thermoelectric film is made in coating on the surface of electric heater skeleton, after drying, is coating Conductive silver paste is coated on the appropriate location surface that stannic oxide electrothermal semiconductor membrane coat is made, and after drying, is baked by oven Stannic oxide semiconductor thermoelectric film and silver electrode apply later in stannic oxide electrothermal semiconductor film surface and part silver electrode Glass-ceramic glaze, or suit glass bushing or teflon material is covered to bake by oven including ceramics after drying or hot melt Glaze, glass surface, Teflon surface are made at least provided with two radiating surfaces, include at least one stannic oxide semi-conductor electricity The electric heater in hotting mask electric heating circuit;
Or the coating of stannic oxide semiconductor thermoelectric film is made in coating on the surface of electric heater skeleton, after drying, is coating Conductive silver paste is coated on the appropriate location surface that stannic oxide electrothermal semiconductor membrane coat is made, after drying, in stannic oxide half Coated ceramic glass glaze on conductor electrothermal diaphragm surface and partially electronically conductive silver paste film, or suit glass bushing or teflon material, It after drying or hot melt, is baked by oven including Ceramic glaze, glass surface, Teflon surface, is made and is dissipated at least provided with two Hot face, the electric heater comprising at least one stannic oxide semiconductor thermoelectric film electric heating circuit;Electric lead is connected in silver electrode Electrical heating core is made;Electric insulation ceramics glaze makes calcium ions and magnesium ions power in combination weak, is not easy to form hard scale;
Electrode, in conjunction with refractory seals gum cover, is closed electricity by set high temperature resistant, electrical isolation plug by silver electrode and electric lead Conducting wire is drawn;By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing is fixed on equipped with attachment device Installation pedestal on, installation pedestal is equipped with for drawing the via hole that passes through of electric lead, and high temperature resistant, electrical isolation sealant is perfused in this via hole For fixing extraction wire, makes it be difficult to tear in use, on the electric lead of extraction, be welded with and facilitate connecing for electrical connection Line terminals.
2. a kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, connection Conducting wire, it is characterized in that: electric heater heat delivery surface is by electric insulation ceramics glaze scale inhibition, electric heater skeleton be include strip, angle Shape, arc-shaped, twisted shape, tubulose, corrugated tube shape electric heater skeleton, electric heater skeleton includes quartz glass skeleton, micro- Crystal glass skeleton, ceramic skeleton;Its surface of skeleton is shiny surface, or is the surface by frosted or halogenation treatment;In skeleton The coating of carbon material Electric radiant Heating Film is made in coating on surface, after carbon material Electric radiant Heating Film is made in destructive distillation sintering, in carbon material electric heating Conductive silver paste is coated on film appropriate location surface, bakes silver electrode by oven, later in carbon material electric heating film surface and part silver After coated ceramic glass glaze on electrode, or suit glass bushing or teflon material, drying or hot melt, baked by oven It including Ceramic glaze, glass surface, Teflon surface, is made at least provided with two radiating surfaces, includes at least one electric heating circuit Electric heater;
Or the coating of carbon material Electric radiant Heating Film is made in coating on the surface of electric heater skeleton, and after drying, carbon materials are made in coating Expect that conductive silver paste is coated on the appropriate location surface of coating of Electric radiant Heating Film, after drying, by oven bake carbon material Electric radiant Heating Film and Silver electrode, the coated ceramic glass glaze in carbon material electric heating film surface and part silver electrode, or suit glass bushing later, or After teflon material, drying or hot melt, is baked by oven including Ceramic glaze, glass surface, Teflon surface, be made at least If there are two radiating surface, the electric heater comprising at least one carbon material electrothermal film electric hot loop;
Or the coating of carbon material Electric radiant Heating Film is made in coating on the surface of electric heater skeleton, and after drying, carbon materials are made in coating Conductive silver paste is coated on the appropriate location surface of material electric heating membrane coat, after drying, in carbon material electric heating film surface and partially electronically conductive It is roasting by oven after coated ceramic glass glaze on silver paste film, or suit glass bushing or teflon material, drying or hot melt Out include Ceramic glaze, glass surface, Teflon surface, be made at least provided with two radiating surfaces, includes at least one carbon material The electric heater of electrothermal film electric hot loop;Electric lead is connected in silver electrode, and electrical heating core is made;Electric insulation ceramics glaze makes It is weak to obtain calcium ions and magnesium ions power in combination, is not easy to form hard scale;
Electrode, in conjunction with refractory seals gum cover, is closed electricity by set high temperature resistant, electrical isolation plug by silver electrode and electric lead Conducting wire is drawn;By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing is fixed on equipped with attachment device Installation pedestal on, installation pedestal is equipped with for drawing the via hole that passes through of electric lead, and high temperature resistant, electrical isolation sealant is perfused in this via hole For fixing extraction wire, makes it be difficult to tear in use, on the electric lead of extraction, be welded with and facilitate connecing for electrical connection Line terminals.
3. a kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, connection Conducting wire, it is characterized in that: electric heater heat delivery surface is by electric insulation ceramics glaze scale inhibition, electric heater skeleton be include strip, angle Shape, arc-shaped, twisted shape, tubulose, corrugated tube shape electric heater skeleton, electric heater skeleton includes quartz glass skeleton, micro- Crystal glass skeleton, ceramic skeleton;Its surface of skeleton is shiny surface, or is the surface by frosted or halogenation treatment;In electric heating On the surface of skeleton, the electric heating coating being mixed including waterglass and carbon material or waterglass and metal powder is made in coating It after the electric heating coating that powder material is mixed, is dried, complex carbon material Electric radiant Heating Film is made by oven sintering later, Or composite material Electric radiant Heating Film;Later, in the electric heater bone of complex carbon material Electric radiant Heating Film or composite material Electric radiant Heating Film On the surface of frame appropriate location, conductive silver paste is coated, after drying, silver electrode is baked by oven, later in complex carbon material electric heating Coated ceramic glass glaze on film or composite material electric heating film surface and part silver electrode, or suit glass bushing, or it is special After fluorine dragon material, drying or hot melt, is baked by oven including Ceramic glaze, glass surface, Teflon surface, be made and at least set There are two radiating surface, the electricity comprising at least one complex carbon material Electric radiant Heating Film or composite material electrothermal film electric hot loop adds Hot device;
Or on the surface of electric heating skeleton, the electric heating coating being mixed including waterglass and carbon material is made in coating, or After the electric heating coating that waterglass and metal powder material are mixed, dried, later in complex carbon material Electric radiant Heating Film On the appropriate location surface of coating or composite material electric heating coating electric heater skeleton, conductive silver paste is coated, is dried After dry, complex carbon material electric heating coating or composite material Electric radiant Heating Film and silver electrode are baked by oven, in composite carbon Coated ceramic glass glaze on material electric heating film or composite material electric heating film surface and part silver electrode, or set glaze After casing or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass surface, Teflon surface, It is made at least provided with two radiating surfaces, includes at least one complex carbon material Electric radiant Heating Film or composite material Electric radiant Heating Film electric heating The electric heater in circuit;
Or on the surface of electric heating skeleton, the electric heating coating being mixed including waterglass and carbon material is made in coating, or After the electric heating coating that waterglass and metal powder material are mixed, dried, later in complex carbon material Electric radiant Heating Film On the appropriate location surface of coating or composite material electric heating coating electric heater skeleton, conductive silver paste is coated, is dried After dry, applied on complex carbon material electric heating membrane coat or composite material Electric radiant Heating Film coating surface and partially electronically conductive silver paste Glass-ceramic glaze, or suit glass bushing or teflon material is covered to bake by oven including ceramics after drying or hot melt Glaze, glass surface, Teflon surface, are made at least provided with two radiating surfaces, comprising at least one complex carbon material Electric radiant Heating Film, Or the electric heater of composite material electrothermal film electric hot loop;Electric lead is connected in silver electrode, and electrical heating core is made;Electricity Insulating ceramics glaze makes calcium ions and magnesium ions power in combination weak, is not easy to form hard scale;
Electrode, in conjunction with refractory seals gum cover, is closed electricity by set high temperature resistant, electrical isolation plug by silver electrode and electric lead Conducting wire is drawn;By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing is fixed on equipped with attachment device Installation pedestal on, installation pedestal is equipped with for drawing the via hole that passes through of electric lead, and high temperature resistant, electrical isolation sealant is perfused in this via hole For fixing extraction wire, makes it be difficult to tear in use, on the electric lead of extraction, be welded with and facilitate connecing for electrical connection Line terminals.
4. a kind of heat delivery surface is electrically insulating material face scale inhibition electric heater, including electric heater skeleton, Electric radiant Heating Film, electrode, connection Conducting wire, it is characterized in that: electric heater heat delivery surface is by electric insulation ceramics glaze scale inhibition, electric heater skeleton be include strip, angle Shape, arc-shaped, twisted shape, tubulose, corrugated tube shape electric heater skeleton, electric heater skeleton includes quartz glass skeleton, micro- Crystal glass skeleton, ceramic skeleton;Its surface of skeleton is shiny surface, or is the surface by frosted or halogenation treatment;In skeleton Heating wire is wound on surface, and heating wire electric heater is made, later, the coiling end socket in heating wire end and electric heater skeleton Place coats conductive silver paste, bakes silver electrode by oven;It is to be coated in heat-delivery surface and part silver electrode in electric heater skeleton After glass-ceramic glaze, or suit glass bushing or teflon material, drying or hot melt, baked by oven including ceramic glaze Face, glass surface, Teflon surface, it is radiating surface, the electric heating comprising at least one electric heating circuit that electric heater skeleton, which is made, Device connects electric lead in silver electrode and electrical heating core is made;Electric insulation ceramics glaze makes calcium ions and magnesium ions power in combination weak, It is not easy to form hard scale;
Electrode, in conjunction with refractory seals gum cover, is closed electricity by set high temperature resistant, electrical isolation plug by silver electrode and electric lead Conducting wire is drawn;By the conductance line end of the closed electric heater skeleton of seal rubber sleeve, sealing is fixed on equipped with attachment device Installation pedestal on, installation pedestal is equipped with for drawing the via hole that passes through of electric lead, and high temperature resistant, electrical isolation sealant is perfused in this via hole For fixing extraction wire, makes it be difficult to tear in use, on the electric lead of extraction, be welded with and facilitate connecing for electrical connection Line terminals.
5. a kind of heat delivery surface according to claim 1,2 or 3 is electrically insulating material face scale inhibition electric heater, it is characterized in that: Electric radiant Heating Film includes at least one equivalent heating resistor that generates heat, and the Electric radiant Heating Film being compounded on skeleton surface is left white, to electricity by membrane removal Hotting mask is split connection, realizes the tune to electric heater capacity by simply connected, the series, parallel to Electric radiant Heating Film resistance heater Section.
6. a kind of heat delivery surface according to claim 1,2 or 3 is electrically insulating material face scale inhibition electric heater, it is characterized in that: In the Electric radiant Heating Film of the closed end of electric heater skeleton, or it is compounded with silver electrode;In electric heater inboard wall of skeleton, it is equipped with electrical insulation ring Shape snap ring is connect with silver electrode;The circumferential clasp apparent surface that is electrically insulated is equipped with the metal connecting sheet coated with scolding tin, is used for conductance Connection between line and Electric radiant Heating Film is metal electrode between Electric radiant Heating Film and the circumferential clasp that is electrically insulated;On electric heater skeleton, At least two metal electrodes draw at least two conducting wires respectively, wherein long conducting wire is on electric heater skeleton, with electric heating Film electrical isolation coats conductive silver paste, forms electric lead after high temperature sintering, later the coated ceramic glass glaze on electric heater skeleton After material, or suit glass bushing or teflon material, drying or hot melt, baked by oven including Ceramic glaze, glass table Face, Teflon surface form electric insulation layer, prevent conducting wire electric leakage long on electric heater skeleton.
CN201821219671.7U 2017-08-04 2018-07-31 A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater Expired - Fee Related CN209314119U (en)

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Publication number Priority date Publication date Assignee Title
CN109392202A (en) * 2017-08-04 2019-02-26 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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CN101063550A (en) * 2006-04-30 2007-10-31 徐宝安 Instantaneously heated type convective circulation electric heater mounted electrical leakage voltage attenuation
CN102769944B (en) * 2012-07-10 2014-08-13 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
CN109392202A (en) * 2017-08-04 2019-02-26 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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109392202A (en) * 2017-08-04 2019-02-26 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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